Rubber extruder preheating tank

Abstract

The utility model discloses a rubber extruder preheating box, include: preheating box casing, a pair of closed lid and a pair of feeding bin, the utility model relates to rubber processing equipment technical field, and this preheating box passes a pair of side opening observation sampling structure, so that the operator can in the equipment operation process, real -time sampling observation is carried out to the rubber particle raw material being preheated, through the sampling window of this structural design, can detect material state and flexible adjustment preheating temperature parameter at any time, ensure that all kinds of particle raw material can reach the best preheating effect, and the matched synchronous heating stirring structure passes through the continuous turning over of the chamber and continues, makes rubber particle form continuous circulation flow in the heating cavity, cooperates the heat source of even distribution, realizes all -round three -dimensional heating, significantly promotes material heating evenness, guarantees the process controllability again, ensures the double promotion of heating efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber processing equipment, specifically a preheating box for a rubber extruder. Background Technology

[0002] Rubber is a highly elastic polymer material that can be extracted from natural rubber trees or synthesized chemically. It is widely used in industrial fields such as tires and seals. In the rubber extrusion molding process, preheating is a key step to ensure processing quality. Preheating can significantly reduce the viscosity of rubber, making it easier to shape evenly in the extruder and ensuring accurate finished product dimensions. At the same time, it can eliminate internal stress in the material, avoid defects such as bubbles and cracks during processing, and improve the product qualification rate. In addition, the friction between the preheated rubber and the equipment is reduced, which can reduce equipment wear and extend the service life of the mold. However, the traditional heating plate preheating method is not effective when processing fine or small raw materials. Small-diameter materials are easily squeezed and stuck by the heating plate, and the problem of uneven heating is difficult to solve, resulting in low preheating efficiency. Therefore, it is necessary to optimize the heating process according to the characteristics of the crushed materials to ensure that the materials are heated evenly while avoiding the sticking problem. In particular, it is important to note that there may already be technical solutions to the above problems in the existing technology, but this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a preheating box for a rubber extruder, comprising: a preheating box shell, a pair of closed covers, and a pair of feeding bins. The pair of closed covers are respectively mounted on the pair of feeding bins via rotating shafts. The pair of feeding bins are respectively mounted on the preheating box shell. A pair of side-opening observation and sampling structures are respectively installed on the preheating box shell. A synchronous heating and stirring structure is installed inside the preheating box shell. The side-opening observation and sampling structure comprises: an opening and closing power telescopic air rod, a first mounting base, a second mounting base, a T-shaped transmission link, a first connecting link, a second connecting link, a third connecting link, and an observation port sealing block.

[0004] The opening and closing telescopic pneumatic rod is mounted on the preheating box shell via a rotating shaft, and the opening and closing telescopic pneumatic rod is connected to the T-shaped transmission link via a rotating shaft. The first mounting base is mounted on the preheating box shell, and the first mounting base is connected to the T-shaped transmission link via a rotating shaft. The second mounting base is mounted on the preheating box shell, and the second mounting base is connected to the second connecting link via a rotating shaft. The T-shaped transmission link is connected to the first connecting link via a rotating shaft. The first connecting link is connected to the observation port sealing block via a rotating shaft. The second connecting link is connected to the third connecting link via a rotating shaft. The third connecting link is connected to the observation port sealing block via a rotating shaft. The observation port sealing block is movably inserted into the preheating box shell.

[0005] It should be noted that, as described above, the sealed cover is first opened, and the rubber preheating granules to be processed are put into the feeding hopper. The rubber granules will fall into the preheating chamber shell and then be agitated and heated by the synchronous heating and stirring structure. If it is necessary to sample or observe the preheated rubber granules during this process, the telescopic pneumatic rod can be retracted to deflect the T-shaped transmission link against the first mounting base. The deflected T-shaped transmission link will drive the first connecting link to move. At the same time, the second connecting link will deflect against the second mounting base, thereby causing the observation port sealing block to be moved and separated from the preheating chamber shell, thus exposing the observation hole. This allows workers to easily sample the rubber granules inside. After sampling and observation, the power telescopic air rod is extended to recouple the observation port sealing block back to the preheating chamber shell. The sampled rubber particles allow for easier adjustment of heating parameters. Because the rubber particles can be sampled and observed at any time through the observation holes on both sides, the temperature or stirring parameters inside the preheating chamber shell can be adjusted more flexibly based on the characteristics and composition of the rubber particles. The sealing ring on the observation port sealing block ensures better sealing performance of the preheating chamber shell while allowing the sealing block to be separated. The temperature monitor inside the preheating chamber shell assists in the heating process and facilitates temperature adjustment.

[0006] Preferably, the synchronous heating and stirring structure includes: a stirring motor, a stirring power protective shell, a split gearbox, a pair of stirring power rotating shafts, several split stirring rollers, a release electric valve, a central partition of the box, a pair of side baffles of the box, and several electric heating tube heating layers;

[0007] The stirring power protective shell is installed on the preheating box shell, the stirring motor is installed inside the stirring power protective shell, the split gearbox is installed inside the preheating box shell, a pair of stirring power shafts are respectively connected to the split gearbox, several split stirring rollers are respectively installed on a pair of stirring power shafts, the release electric valve is installed on the preheating box shell, the central partition of the box is installed inside the preheating box shell, a pair of side blocks of the box are respectively installed inside the preheating box shell, and several electric heating tube heating layers are respectively installed on the central partition of the box and on a pair of side blocks of the box;

[0008] It should be noted that, as described above, after the rubber granules enter the preheating chamber, they fall into the gaps between the central partition and a pair of side blocks. This drives the stirring motor inside the stirring power protective shell, which in turn drives the distribution gearbox. The rotating distribution gearbox then rotates a pair of stirring power shafts, causing multiple distribution stirring rollers on these shafts to continuously rotate within the preheating chamber, thus disturbing the rubber granules and debris. This continuous disturbance and displacement of the rubber granules and debris within the preheating chamber ensures more uniform heating. Simultaneously, multiple electric heating elements activate and generate high temperatures, further disturbing and heating the rubber granules and debris within the preheating chamber. After heating, the preheated rubber granules are released via an electric valve. The protective sealing layer prevents rubber debris from entering the distribution gearbox and damaging it.

[0009] Preferably, the stirring power protective shell is provided with a maintenance and inspection port;

[0010] Preferably, the observation port sealing block is provided with a sealing rubber ring;

[0011] Preferably, a temperature monitor is installed inside the preheating box shell;

[0012] Preferably, the transfer gearbox is provided with a sealed protective layer.

[0013] Beneficial effects

[0014] This utility model provides a preheating box for a rubber extruder. It offers the following advantages compared to existing technologies: This preheating box features a pair of side-opening observation and sampling structures, allowing operators to conduct real-time sampling and observation of the preheating rubber granules during equipment operation. The sampling windows designed in this structure allow for continuous monitoring of the material's state and flexible adjustment of preheating temperature parameters, ensuring optimal preheating for all types of granular materials. The accompanying synchronous heating and stirring structure, through continuous mixing within divided chambers, creates a continuous circulation of rubber granules within the heating chamber. Combined with a uniformly distributed heat source, this achieves all-around three-dimensional heating, significantly improving the uniformity of material heating. This ensures both process controllability and a dual improvement in heating efficiency and quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the preheating box of the rubber extruder described in this utility model.

[0016] Figure 2 for Figure 1 A magnified view of the letter "A" in the diagram.

[0017] In the diagram: 1. Preheating chamber shell; 2. Closed lid; 3. Feeding hopper; 4. Opening and closing power telescopic air rod; 5. First mounting base; 6. Second mounting base; 7. T-shaped transmission link; 8. First connecting link; 9. Second connecting link; 10. Third connecting link; 11. Observation port sealing block; 12. Stirring motor; 13. Stirring power protective shell; 14. Transfer gearbox; 15. Stirring power shaft; 16. Transfer stirring roller; 17. Release electric valve; 18. Central partition of the chamber; 19. Side baffle of the chamber; 20. Electric heating tube heating layer. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0020] Example

[0021] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-2As shown, a preheating box for a rubber extruder includes: a preheating box shell 1, a pair of closed covers 2, and a pair of feeding bins 3. The pair of closed covers 2 are respectively mounted on the pair of feeding bins 3 via rotating shafts. The pair of feeding bins 3 are respectively mounted on the preheating box shell 1. A pair of side-opening observation and sampling structures are respectively installed on the preheating box shell 1. A synchronous heating and stirring structure is installed inside the preheating box shell 1. The side-opening observation and sampling structure includes: an opening and closing power telescopic air rod 4, a first mounting base 5, a second mounting base 6, a T-shaped transmission link 7, a first connecting link 8, a second connecting link 9, and a third connecting link 1. Linkage 10 and observation port sealing block 11; the opening and closing power telescopic air rod 4 is mounted on the preheating box shell 1 via a rotating shaft, and the opening and closing power telescopic air rod 4 is connected to the T-shaped transmission link 7 via a rotating shaft; the first mounting base 5 is mounted on the preheating box shell 1, and the first mounting base 5 is connected to the T-shaped transmission link 7 via a rotating shaft; the second mounting base 6 is mounted on the preheating box shell 1, and the second mounting base 6 is connected to the second connecting link 9 via a rotating shaft; the T-shaped transmission link 7 is connected to the first connecting link 8 via a rotating shaft; the first connecting link 8 is connected to the observation port via a rotating shaft. The observation port sealing block 11 is connected to the second connecting rod 9, which is connected to the third connecting rod 10 via a rotating shaft. The third connecting rod 10 is connected to the observation port sealing block 11 via a rotating shaft. The observation port sealing block 11 is movably inserted into the preheating box shell 1. The synchronous heating and stirring structure includes: a stirring motor 12, a stirring power protective shell 13, a split gearbox 14, a pair of stirring power rotating shafts 15, several split stirring rollers 16, a release electric valve 17, a box center divider 18, a pair of box side baffles 19, and several electric heating tube heating layers 20. The stirring power protective shell 13 is installed on the preheating box shell 1. The stirring motor 12 is installed inside the stirring power protective shell 13, the split gearbox 14 is installed inside the preheating box shell 1, a pair of stirring power shafts 15 are respectively connected to the split gearbox 14, a plurality of split stirring rollers 16 are respectively installed on the pair of stirring power shafts 15, the release electric valve 17 is installed on the preheating box shell 1, the box center divider 18 is installed inside the preheating box shell 1, a pair of box side blocks 19 are respectively installed inside the preheating box shell 1, and a plurality of electric heating tube heating layers 20 are respectively installed on the box center divider 18 and the pair of box side blocks 19.

[0022] According to the appendix Figure 1-2The process involves first opening the sealed cover 2 and then feeding the preheated rubber granules into the feeding hopper 3. The granules fall into the preheating chamber shell 1 and are then agitated and heated by the synchronous heating and stirring structure. If sampling or observation of the preheated rubber granules is required during this process, the telescopic pneumatic rod 4 can be retracted to deflect the T-shaped transmission link 7 against the first mounting base 5. The deflected T-shaped transmission link 7 then drives the first connecting link 8 to move. Simultaneously, the second connecting link 9 deflects against the second mounting base 6, thereby causing the observation port sealing block 11 to be moved. The rubber particles are then separated from the preheating chamber shell 1, exposing the observation port. This allows workers to easily sample and observe the rubber particles inside. After sampling, the telescopic pneumatic rod 4 extends, re-coupling the observation port sealing block 11 with the preheating chamber shell 1. The sampled rubber particles allow for easier adjustment of heating parameters. Because the rubber particles can be sampled and observed through the observation ports on both sides, the temperature or stirring parameters inside the preheating chamber shell 1 can be adjusted more flexibly based on the characteristics and composition of the rubber particles. The observation port sealing block 11 is equipped with... The sealing ring ensures that the observation port sealing block 11 can be separated while maintaining better overall sealing performance of the preheating chamber shell 1. The temperature monitor inside the preheating chamber shell 1 assists in the heating process and facilitates temperature adjustment. When the rubber granules enter the preheating chamber shell 1, they fall into the gaps between the central partition 18 and a pair of side baffles 19, driving the stirring motor 12 inside the stirring power protective shell 13. This, in turn, drives the distribution gearbox 14, which in turn rotates the pair of stirring power shafts 15. This causes multiple rotating stirring rollers 16 to continuously rotate within the cavity of the preheating chamber shell 1, thereby disturbing the rubber particles within the cavity. This causes the rubber particles and debris to be continuously disturbed and displaced within the preheating chamber shell 1, resulting in more uniform heating. At the same time, multiple electric heating tubes 20 are activated and generate high temperatures, thereby fully disturbing and heating the rubber particles and debris within the cavity of the preheating chamber shell 1. After heating is completed, the preheated rubber particles are released by releasing the electric valve 17. The sealed protective layer can prevent rubber debris from entering the transfer gearbox 14 and thus damaging the transfer gearbox 14.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preheating box for a rubber extruder, comprising: The preheating chamber shell, a pair of closed covers, and a pair of feeding hoppers are provided. The pair of closed covers are respectively mounted on the pair of feeding hoppers via rotating shafts. The pair of feeding hoppers are respectively mounted on the preheating chamber shell. A pair of side-opening observation and sampling structures are respectively installed on the preheating chamber shell. A synchronous heating and stirring structure is installed inside the preheating chamber shell. The side-opening observation and sampling structure is characterized in that it includes: an opening and closing power telescopic air rod, a first mounting base, a second mounting base, a T-shaped transmission link, a first connecting link, a second connecting link, a third connecting link, and an observation port sealing block. The opening and closing telescopic air rod is mounted on the preheating box shell via a rotating shaft, and the opening and closing telescopic air rod is connected to the T-shaped transmission link via the rotating shaft. The first mounting base is mounted on the preheating box shell, and the first mounting base is connected to the T-shaped transmission link via a rotating shaft. The second mounting base is mounted on the preheating box shell, and the second mounting base is connected to the second connecting link via a rotating shaft. The T-shaped transmission link is connected to the first connecting link via a rotating shaft. The first connecting link is connected to the observation port sealing block via a rotating shaft. The second connecting link is connected to the third connecting link via a rotating shaft. The third connecting link is connected to the observation port sealing block via a rotating shaft. The observation port sealing block is movably inserted into the preheating box shell.

2. The preheating box for a rubber extruder according to claim 1, characterized in that, The synchronous heating and stirring structure includes: a stirring motor, a stirring power protective shell, a split gearbox, a pair of stirring power rotating shafts, several split stirring rollers, a release electric valve, a central partition of the box, a pair of side baffles of the box, and several electric heating tube heating layers; The stirring power protective shell is installed on the preheating box shell, the stirring motor is installed inside the stirring power protective shell, the split gearbox is installed inside the preheating box shell, a pair of stirring power shafts are respectively connected to the split gearbox, several split stirring rollers are respectively installed on the pair of stirring power shafts, the release electric valve is installed on the preheating box shell, the central partition of the box is installed inside the preheating box shell, a pair of side blocks of the box are respectively installed inside the preheating box shell, and several electric heating tube heating layers are respectively installed on the central partition of the box and on the pair of side blocks of the box.

3. The preheating box for a rubber extruder according to claim 2, characterized in that, The stirring power protective shell is equipped with a maintenance and inspection port.

4. A preheating box for a rubber extruder according to claim 3, characterized in that, The observation port sealing block is equipped with a sealing rubber ring.

5. A preheating box for a rubber extruder according to claim 4, characterized in that, A temperature monitor is installed inside the preheating box shell.

6. A preheating box for a rubber extruder according to claim 5, characterized in that, The transfer gearbox is equipped with a sealed protective layer.

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