Novel cooling device for mixed silicone rubber

Abstract

The novel cooling device sequentially comprises an internal mixing part, a kneading part and a rubber cutting part, the rubber cutting part comprises a cutting part and a transferring part, air cooling boxes are arranged on the two sides of the transferring part, the air cooling boxes on the two sides are provided with air openings for guiding air to the ends of the two sides of the cutting part, and the air openings are communicated with the internal mixing part. And the discharging direction of the material on the transferring part is opposite to one orthogonal direction of the wind direction of the tuyere. According to the embodiment of the utility model, the colloid sheet can be quickly air-cooled while or just after the colloid is cut, so that the temperature of the cut colloid sheet is quickly reduced, and the loss of water in the colloid sheet can be effectively reduced when the subsequent filtering operation is carried out, thereby being beneficial to ensuring the product quality. Due to the fact that the air direction of the air opening is opposite to the discharging direction in the orthogonal direction, when air cooling is carried out, the relative speed of the air and the surface of the colloid sheet is increased, and therefore heat can be taken away easily.

Description

Technical Field

[0001] This application relates to the technical field of mixing, and in particular to a new cooling device for mixed silicone rubber. Background Art

[0002] Mixed silicone rubber is a synthetic rubber made by gradually adding silica, silicone oil and other additives to silicone rubber raw rubber on a two-roll rubber mixer or in a closed kneader and repeatedly refining it. It is one of the most important products of polysiloxane. Before vulcanization, it is a linear polysiloxane with a high molar mass, and after vulcanization, it becomes an elastomer with a network structure.

[0003] Taking one of the production processes as an example, in a general rubber mixing equipment, raw rubber, structure control agent, filler, etc. are put into a mixer for mixing operation, the temperature is controlled below 90°C, the cooling water is turned on, and a stable powder feeding speed is maintained. The mixing time for each batch of rubber material is about 40 - 80 minutes. No other impurities or rubber particles can be mixed into the mixing production process; after mixing, the structure control agent added to the rubber material is further combined with the surface (Si-OH) of the silica through heat treatment to eliminate the low-molecular volatile substances in the rubber material. Usually, it is maintained at 160°C - 190°C for 1 - 1.5 hours in a nitrogen or reduced-pressure kneader; after discharging, the rubber material is cooled for a certain time, and a rubber filtering machine or an ordinary extruder is used to filter the mixed rubber material products. Because mechanical impurities and undispersed compounding agent particles can cause quality problems when the silicone material is used for products in processes such as molding, extrusion, coating, and film. To control the quality and ensure the customer quality from the source, the temperature of the rubber filtering machine is controlled at a lower level, and the filter screen specification is preferably 100 - 200 meshes. It can be seen that in the traditional production process of mixed rubber, after discharging, the rubber material needs to be naturally cooled for a period of time, which to a certain extent prolongs the production process and thus increases the overall production time. Summary of the Invention

[0004] The purpose of this application is to provide a cooling device for mixed silicone rubber.

[0005] To achieve the above purpose, the technical solution adopted in this application is: a new cooling device for mixed silicone rubber, which sequentially includes a mixing section, a kneading section, and a rubber cutting section. The rubber cutting section includes a cutting part and a transfer part. Air cooling boxes are arranged on both sides of the transfer part, and air outlets for guiding the wind direction towards both ends of the cutting part are provided on the air cooling boxes on both sides. The discharging direction of the material on the transfer part is opposite to one of the orthogonal directions of the wind direction of the air outlet.

[0006] As a preference, collecting parts are arranged on one sides of two ends of the cutting part close to the transfer part. A transfer plane is formed inside the rubber cutting part. The cutting surface of the cutting part and the top surface of the transfer part are both on the transfer plane. The width of the transfer plane at the position of the cutting part is greater than the width of the transfer plane at the position of the transfer part. The transfer plane forms a solid bottom plate at the position of the cutting surface of the cutting part, and waste openings are formed at positions on both sides of the transfer part. The collecting parts are rotatably arranged on two sides of the top of the solid bottom plate. When the collecting parts are rotated to the waste openings, the waste materials located in the collecting parts are discharged.

[0007] As a preference, the collecting part includes a shaft part for enabling itself to rotate. The shaft part is vertically installed on the top of the solid bottom plate, and a torsion spring is integrally arranged on the shaft part so that the collecting part is kept within the range of the solid bottom plate in the initial state.

[0008] As a preference, the cross section of the collecting part is trapezoidal, and one side facing the transfer part is an opening.

[0009] As a preference, two air cooling boxes on both sides together form a first air outlet, a second air outlet and a third air outlet. The first air outlet and the second air outlet are on the same side. The first air outlet is closer to the cutting part than the second air outlet, and the first air outlet is a strong wind outlet, while the second air outlet and the third air outlet are weak wind outlets; the extension line of the wind direction of the third air outlet intersects with the extension line of the wind direction of the first air outlet.

[0010] As a preference, a material transfer part is arranged between the internal mixer part and the kneading part. Screw feeding mechanisms are arranged inside the internal mixer part and inside the material transfer part.

[0011] As a preference, a transmission mechanism is arranged between the kneading part and the rubber cutting part. A guide plate is inclinedly installed at the connection of the transmission mechanism and the kneading part; support frames are arranged on both sides of the transmission mechanism, and the support frames stably install the transmission mechanism; extension parts are formed by extending the tops of the support frames towards the inner sides of two ends of the transmission mechanism, a limiting plate is arranged at the top of the extension part, and a guiding part inclined towards the discharging direction is arranged inside the limiting plate.

[0012] As a preference, a driving part corresponding to the collecting part is formed on the side wall of the rubber cutting part. The driving part is a telescopic device, and when it extends, it acts on the collecting part to enable the collecting part to rotate around the shaft part.

[0013] As a preference, a blanking part is arranged at the end of the rubber cutting part. The blanking part includes a plurality of transfer rollers arranged at intervals.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] While cutting the glue or just after cutting, the colloidal sheet can be quickly air-cooled, so that the temperature of the colloidal sheet drops rapidly after cutting. When performing subsequent filtering operations, the loss of moisture inside the colloidal sheet can be effectively reduced, which is beneficial to ensuring product quality. Since the air outlet direction has a direction opposite to the material discharge direction in its orthogonal direction, when performing air cooling, the relative speed between the air and the surface of the colloidal sheet increases, thus helping to take away heat. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 is Figure 1 a cross-sectional view of the left half structure.

[0018] Figure 3 is Figure 2 a top view of

[0019] Figure 4 is Figure 1 a schematic diagram of the middle and right half structures.

[0020] Figure 5 is Figure 4 a cross-sectional view at the height of the conveying plane.

[0021] Figure 6 is Figure 5 an enlarged view of a partial structure in

[0022] In the figure: 1, internal mixer part; 2, material conveying part; 3, kneading part; 4, guide plate; 5, transmission mechanism; 6, glue cutting part; 61, cutting part; 62, transfer part; 7, blanking part; 8, limit plate; 9, guiding part; 10, support frame body; 11, air-cooling box; 12, first air outlet; 13, second air outlet; 14, third air outlet; 15, collection part; 16, solid bottom plate; 17, shaft part; 18, driving part; 19, waste outlet. Detailed Embodiments

[0023] Next, in combination with the specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0024] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0026] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0027] Example 1:

[0028] Refer to Figures 1 to 6This embodiment proposes a new type of cooling device for mixing silicone rubber, which includes a mixing section 1, a kneading section 3 and a rubber cutting section 6 in sequence. The rubber cutting section 6 includes a cutting part 61 and a transfer part 62. Air cooling boxes 11 are provided on both sides of the transfer part 62. The air cooling boxes 11 on both sides are provided with air outlets that direct the wind direction toward the ends of both sides of the cutting part 61. The material discharge direction in the transfer part 62 is opposite to one of the orthogonal directions of the wind direction of the air outlet. The mixing section 1 is a common internal mixer, the kneading section 3 is a common kneading machine, and the rubber cutting section 6 is a common rubber cutting machine, all of which are common equipment in the field of silicone rubber mixing. In this embodiment, the air cooling box 11 is integrated into the rubber cutting section 6. Since the material discharged from the kneading section 3 and then transferred to the rubber cutting section 6 for cutting has a relatively high residual temperature, after only the common rubber cutting, the surface area of ​​the colloidal thin sheet formed after cutting increases and the thickness becomes smaller. Under the action of the residual temperature, it continues to be transported until the subsequent filtration process, which will accelerate the evaporation of water, so that the Si-OH group on the surface of the white carbon black inside the rubber material reacts with the Si-O bond or the terminal Si-OH group of the raw rubber molecule to form a hydrogen bond, or even chemically combine, so that the linear polysiloxane is converted into a pseudo-cross-linked or micro-cross-linked semi-elastic solid structure, so that the rubber material becomes hard and the plasticity is greatly reduced, resulting in the occurrence of a structuring phenomenon, which is not conducive to the processing and use of the client. In this embodiment, by performing rapid air cooling at the same time as the rubber cutting or just after the cutting, the temperature of the colloidal thin sheet after cutting is rapidly reduced, and when the subsequent filtration operation is performed, the loss of water inside the colloidal thin sheet can be effectively reduced. However, the moisture on the surface of the colloidal sheet will still evaporate during this process, but after rapid cooling, the internal moisture can be reduced in the subsequent process, so it has a positive effect and is conducive to ensuring product quality. In addition, since the wind direction of the tuyere in this embodiment is opposite to the discharge direction in its orthogonal direction, the relative speed between the wind and the surface of the colloidal sheet increases during air cooling, which helps to take away heat.

[0029] Embodiment 2:

[0030] Based on Example 1, in this embodiment, a collecting portion 15 is provided at both ends of the cutting portion 61 near the transfer portion 62, as shown in FIG. Figure 5 , Figure 6 As shown, a conveying plane is formed on the inner side of the rubber cutting part 6, the cutting surface of the cutting part 61 and the top surface of the transfer part 62 are both on the conveying plane, the width of the conveying plane at the position of the cutting part 61 is greater than the width of the conveying plane at the position of the transfer part 62, the conveying plane forms a solid bottom plate 16 at the position of the cutting surface of the cutting part 61, and a waste opening 19 is formed at the positions on both sides of the transfer part 62, and the collecting part 15 is rotatably arranged on both sides of the top of the solid bottom plate 16. When the collecting part 15 is rotated to the waste opening 19, the waste located in the collecting part 15 is discharged. Figure 6 , Figure 6 That is the initial state of the collection unit 15. Figure 6When the collecting part 15 in it rotates towards one side of the waste outlet 19, the bottom of the collecting part 15 will gradually enter the range of the waste outlet 19, so that discharging can be carried out.

[0031] To facilitate the discharging and resetting of the collecting part 15, the collecting part 15 includes a shaft part 17 for making itself rotate. The shaft part 17 is vertically installed on the top of the solid bottom plate 16, and a torsion spring is integrally arranged on the shaft part 17 so that the collecting part 15 remains within the range of the solid bottom plate 16 in the initial state.

[0032] Preferably, the cross-section of the collecting part 15 is trapezoidal, and the side facing the transfer part 62 is open. Further, a driving part 18 corresponding to the collecting part 15 can be arranged on the side wall of the rubber cutting part 6. The driving part 18 is a telescopic device, such as a cylinder, and when it extends, it acts on the collecting part 15 to make the collecting part 15 rotate around the shaft part 17, and at the same time, the torsion spring deforms elastically. When the cylinder retracts, the torsion spring resets to enable the collecting part 15 to reset.

[0033] Embodiment 3:

[0034] Based on Embodiment 1, referring to Figure 5 As shown, the two air-cooling boxes 11 on both sides together form a first air outlet 12, a second air outlet 13 and a third air outlet 14. Among them, the first air outlet 12 and the second air outlet 13 are on the same side. The first air outlet 12 is closer to the cutting part than the second air outlet 13, and the first air outlet 12 is a strong air outlet, and the second air outlet 13 and the third air outlet 14 are weak air outlets; the extension line of the wind direction of the third air outlet 14 intersects with the extension line of the wind direction of the first air outlet 12. The extension line of the wind direction is easy to understand. Actually, it is the direction of the wind generated by the air outlet. As Figure 5 shown, since the first air outlet 12 is a strong air outlet, most of the cutting waste residues floating here can be blown into the collecting part 15 on the right side by the wind. Because the air outlet is also inclined, most of the waste residues are gathered on the side after being blown by the wind and will not accumulate in the middle of the rubber cutting part 6. This helps to cooperate with the collecting part 15 for collecting and discharging waste. And part of the waste that cannot be blown to the collecting part 15 by the first air outlet 12 at one time will also be blown again at the second air outlet 13 and the third air outlet 14, and finally fall on the extension line of the wind direction of the first air outlet 12, so as to be blown into the collecting part 15.

[0035] As Figure 2As shown in the figure, a material conveying part 2 is arranged between the internal mixer part 1 and the kneading part 3, and screw feeding mechanisms are arranged inside the internal mixer part 1 and inside the material conveying part 2. A transmission mechanism 5 is arranged between the kneading part 3 and the rubber cutting part 6, and a guide plate 4 is inclinedly installed at the connection between the transmission mechanism 5 and the kneading part; support frames 10 are arranged on both sides of the transmission mechanism 5, and the support frames 10 stably install the transmission mechanism 5; an extension part is formed by the top of the support frame 10 extending towards the inner sides of both ends of the transmission mechanism 5, a limit plate 8 is arranged at the top of the extension part, and a guiding part 9 inclined towards the discharging direction is arranged inside the limit plate 8. The extension part is as Figure 4 shown, a rectangular plate body at the top of the support frame 10 towards the middle, and the guiding part 9 arranged inside it will not act on the material when the material is discharging normally, while when the material is inclined, it can play a guiding role.

[0036] A blanking part 7 is arranged at the end of the rubber cutting part 6, and the blanking part 7 includes a plurality of conveying rollers arranged at intervals, which is convenient for the discharged colloidal thin sheets after processing.

[0037] The basic principle, main features and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of this application. Without departing from the spirit and scope of this application, this application will have various changes and improvements, and these changes and improvements all fall within the scope of this application claimed. The scope of protection required by this application is defined by the appended claims and their equivalents.

Claims

1. A novel cooling device for mixing silicone rubber, characterized in that: It comprises a mixing section, a kneading section and a rubber cutting section in sequence, wherein the rubber cutting section comprises a cutting part and a transfer part, air cooling boxes are arranged on both sides of the transfer part, and the air cooling boxes on both sides are provided with air outlets for directing the wind direction toward the ends of both sides of the cutting part, and the material discharge direction in the transfer part is opposite to one of the orthogonal directions of the wind direction of the air outlet; A collecting part is provided on one side of the two side ends of the cutting part close to the transfer part, a conveying plane is formed on the inner side of the rubber cutting part, the cutting surface of the cutting part and the top surface of the transfer part are both on the conveying plane, the width of the conveying plane at the position of the cutting part is greater than the width of the conveying plane at the position of the transfer part, the conveying plane forms a solid bottom plate at the position of the cutting surface of the cutting part, and waste openings are formed at the positions on both sides of the transfer part, the collecting part is rotatably arranged on both sides of the top of the solid bottom plate, and when the collecting part is rotated to the waste opening, the waste in the collecting part is discharged.

2. The novel cooling device for mixing silicone rubber according to claim 1, characterized in that: The collecting part includes a shaft part for rotating itself, the shaft part is vertically installed on the top of the solid bottom plate, and the shaft part is integrated with a torsion spring to keep the collecting part within the range of the solid bottom plate in an initial state.

3. The novel cooling device for mixing silicone rubber according to claim 2, characterized in that: The collecting portion has a trapezoidal cross section, and a side facing the transfer portion is open.

4. The novel cooling device for mixing silicone rubber according to claim 1, characterized in that: The two air cooling boxes on both sides form a first air outlet, a second air outlet and a third air outlet, wherein the first air outlet and the second air outlet are on the same side, the first air outlet is closer to the cutting part than the second air outlet, and the first air outlet is a strong wind outlet, and the second air outlet and the third air outlet are weak wind outlets; the wind direction extension line of the third air outlet intersects with the wind direction extension line of the first air outlet.

5. The novel cooling device for mixing silicone rubber according to claim 1, characterized in that: A material conveying part is arranged between the internal mixing part and the kneading part, and a screw feeding mechanism is arranged on the inner side of the internal mixing part and the inner side of the material conveying part.

6. The novel cooling device for mixing silicone rubber according to claim 1, characterized in that: A transmission mechanism is arranged between the kneading part and the rubber cutting part, and a guide plate is obliquely installed at the junction of the transmission mechanism and the kneading part; support frames are arranged on both sides of the transmission mechanism, and the support frames enable the transmission mechanism to be stably installed; the top of the support frame extends to the inner side of the two ends of the transmission mechanism to form an extension part, and a limiting plate is arranged on the top of the extension part, and a guide part inclined toward one side of the discharge direction is arranged on the inner side of the limiting plate.

7. The novel cooling device for mixing silicone rubber according to claim 2, characterized in that: A driving part corresponding to the collecting part is formed on the side wall of the rubber cutting part. The driving part is a telescopic device, and when the driving part is extended, it acts on the collecting part to make the collecting part rotate around the shaft.

8. The novel cooling device for mixing silicone rubber according to claim 1, characterized in that: A feeding portion is disposed at the end of the rubber cutting portion, and the feeding portion includes a plurality of conveying rollers arranged at intervals.

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