Rubber auxiliary granulating device

Abstract

The utility model relates to a rubber additive granulating device which is characterized in that the lower side of an extrusion disc (13) is connected with a cooling box (21), and a guide ring (24) corresponding to an extrusion hole (14) is arranged in the cooling box (21); a rubber auxiliary is fed into the barrel (11) through the feeding port (12), the rubber auxiliary is stirred, evenly mixed, conveyed and extruded through the spiral blade (10), the rubber auxiliary is formed into a long strip shape through extrusion holes (14) in the extrusion disc (13), the long strip shape enters a guide ring (24) in the cooling box (21) and is sequentially conveyed downwards, air flow circulation is generated in the cooling box (21) through the air blowing port (22) and the air outlet (23), and the rubber auxiliary is cooled through the air blowing port (22) and the air outlet (23). The long-strip-shaped rubber additive is ventilated and cooled and then cut by the cutting blade (25) to obtain the rubber additive particles, so that the problem that the cutting edges of the rubber additive particles have burrs, cracks or deformation and the like, and the quality of finished rubber additive particles is influenced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber additive production, in particular to a rubber additive granulating device. Background Art

[0002] Rubber products are widely used in various aspects of industry and daily life, and their production process requires the addition of rubber additives. Rubber additives are fine chemical products added during the rubber processing process to improve the performance, service life, and processing properties of rubber products. They are divided into five major categories: vulcanizing and vulcanization activators, accelerators, antioxidants, processing additives, and special functional additives. They are widely used in industries such as rubber, tires, hoses, tapes, and wire and cable. During the production of rubber additives, various materials are generally stirred and mixed to form a high-temperature, molten product, which is then separated into granular products, a process known as granulation. Chinese utility model patent with authorization publication number CN218019542U discloses a rubber additive granulation device that uses an auger to transport and extrude the rubber additive into long strips, which are then cut by a cutting disc to produce rubber additive granules. However, in actual use, this solution does not cool the extruded long strips of rubber additive and is directly cut. This can easily cause burrs, cracks, or deformation on the cut edges of the rubber additive granules, affecting the quality of the finished rubber additive granules. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the existing rubber additive granulation equipment does not cool the extruded long strips of rubber additives during actual use but directly cuts them, which easily causes burrs, cracks or deformation on the cut edges of the rubber additive particles, affecting the quality of the finished rubber additive particles.

[0004] In order to solve the above problems, the utility model provides a rubber additive granulating device, including a cylinder with spiral blades inside, a feed port is provided on the upper side of the cylinder, and an extrusion disk is connected to the lower side, and a plurality of extrusion holes are provided on the extrusion disk; a cooling box is connected to the lower side of the extrusion disk, and an air blowing port and an air outlet are provided on the cooling box, and a guide ring corresponding to the extrusion hole is provided in the cooling box, and the plurality of guide rings are arranged at intervals from top to bottom, and a cutting blade is provided at the bottom of the cooling box.

[0005] The rubber additive granulating device provided by the utility model also has the following technical features:

[0006] The bottom of the cooling box is provided with an outlet corresponding to the extrusion hole, a plurality of guide rings are arranged between the extrusion hole and the outlet, and adjacent guide rings are connected by a plurality of connecting columns.

[0007] A guide hole is provided on the inner side of the guide ring, and a chamfer is provided on the upper side of the guide hole.

[0008] A plurality of air blowing ports are arranged on the bottom of the cooling box, and a plurality of air outlets are arranged on the side wall of the cooling box.

[0009] An annular evenly distributed hole is coaxially opened at the center of the bottom of the cooling box, the air blowing port is connected with the annular evenly distributed hole, and an air inlet pipe connected with the annular evenly distributed hole is provided on the cooling box.

[0010] A connecting ring is provided on the lower side of the extrusion disc, and a plurality of positioning grooves are provided on the connecting ring. A positioning block corresponding to the positioning groove is provided on the upper side of the cooling box. A threaded hole is provided on the connecting ring along its radial direction, and the threaded hole is connected to the positioning groove. A locking bolt is connected in the threaded hole.

[0011] A first motor is provided on the upper side of the cylinder, and the output shaft of the first motor extends into the cylinder and is connected to the spiral blade; a second motor is provided in the cooling box, and the output shaft of the second motor extends out of the cooling box and is connected to the cutting blade.

[0012] The utility model has the following beneficial effects: the rubber additive is fed into the cylinder through the feed port, the rubber additive is stirred, mixed, conveyed and extruded by the spiral blade, and is formed into a long strip through the extrusion hole on the extrusion disk, enters the guide ring in the cooling box and is conveyed downward in sequence, the air blowing port and the air outlet enable air flow circulation in the cooling box to ventilate and cool the long strip of rubber additive, and then is cut by the cutting blade to obtain rubber additive particles, thereby avoiding the problems of burrs, cracks or deformation on the cut edges of the rubber additive particles, which affect the quality of the finished rubber additive particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model;

[0014] Figure 2 Schematic diagram of the internal structure of the cooling box;

[0015] Figure 3 This is a connection diagram of the guide ring. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0017] like Figures 1 to 3As shown, the rubber additive granulating device of the present invention includes a cylinder 11 with a spiral blade 10 inside, a feed port 12 is provided on the upper side of the cylinder 11, and an extrusion disk 13 is connected to the lower side, and a plurality of extrusion holes 14 are provided on the extrusion disk 13; a cooling box 21 is connected to the lower side of the extrusion disk 13, and an air blowing port 22 and an air outlet 23 are opened on the cooling box 21. A guide ring 24 corresponding to the extrusion hole 14 is provided in the cooling box 21, and the plurality of guide rings 24 are spaced apart from top to bottom. A cutting blade 25 is provided at the bottom of the cooling box 21.

[0018] The rubber additive is fed into the barrel 11 through the feed port 12, and is stirred, mixed, conveyed and extruded by the spiral blade 10. It is formed into a long strip through the extrusion hole 14 on the extrusion disk 13, enters the guide ring 24 in the cooling box 21 and is conveyed downward in sequence. The guide ring 24 can keep the long strip of rubber additive in a vertical state. The air outlet 22 and the air outlet 23 generate air flow circulation in the cooling box 21 to ventilate and cool the long strip of rubber additive. The rubber additive is then cut by the cutting blade 25 to obtain rubber additive particles, thereby avoiding burrs, cracks or deformation on the cut edges of the rubber additive particles, which may affect the quality of the finished rubber additive particles.

[0019] The upper side of the extrusion disc 13 is detachably connected to the lower side of the cylinder 11 via the threaded cylinder 15. A collecting box is provided on the lower side of the cooling box 21 for collecting the finished rubber additive granules.

[0020] Preferably, an outlet 26 corresponding to the extrusion hole 14 is opened at the bottom of the cooling box 21 , a plurality of guide rings 24 are arranged between the extrusion hole 14 and the outlet 26 , and adjacent guide rings 24 are connected by a plurality of connecting columns 27 .

[0021] Preferably, a guide hole 28 is provided on the inner side of the guide ring 24 , and a chamfer 29 is provided on the upper side of the guide hole 28 to facilitate the long strip of rubber additive to fall into the guide hole 28 .

[0022] Preferably, multiple air vents 22 are provided at the bottom of the cooling box 21, and multiple air outlets 23 are provided on the sidewalls of the cooling box 21. Air is blown into the cooling box 21 from bottom to top, resulting in more uniform cooling of the rubber additive. The multiple air vents 22 and air outlets 23 are spaced apart along the circumference of the cooling box 21. The air vents 22 should be positioned away from the extrusion hole 14, that is, non-coaxially with the axis of the extrusion hole 14, to avoid motion interference and affect the cooling effect of the air blowing.

[0023] Preferably, an annular uniformly distributed hole 30 is coaxially provided at the center of the bottom of the cooling box 21, and the air outlet 22 is connected to the annular uniformly distributed hole 30. The cooling box 21 is provided with an air inlet pipe 31 connected to the annular uniformly distributed hole 30. Multiple annular uniformly distributed holes 30 can be coaxially arranged inside and outside, and each annular uniformly distributed hole 30 is connected to the air outlet 22, so that the air blowing in the cooling box 21 is more uniform. Correspondingly, the air inlet pipe 31 is connected to each annular uniformly distributed hole 30. The air outlet 23 can be arranged in multiple layers above and below to facilitate better exhaust. The end of the air inlet pipe 31 can be connected to an air cooling module. The air cooling module may include components such as a compressor, a condenser, an expansion valve, an evaporator, and a control system, so that the air inlet pipe 31 can provide cold air to the cooling box 21. The specific structure and working principle of the cold air module are all existing technologies and will not be described in detail here.

[0024] Preferably, a connecting ring 41 is provided on the lower side of the extrusion disc 13, and a plurality of positioning grooves 42 are provided on the connecting ring 41. A positioning block 43 corresponding to the positioning groove 42 is provided on the upper side of the cooling box 21. A threaded hole 44 is provided on the connecting ring 41 along its radial direction. The threaded hole 44 is connected to the positioning groove 42, and a locking bolt 45 is connected in the threaded hole 44.

[0025] Connect the positioning block 43 on the cooling box 21 to the positioning groove 42 on the connecting ring 41 accordingly, and screw the locking bolt 45 into the threaded hole 44 so that the end of the locking bolt 45 contacts the positioning block 43 to connect the extrusion disk 13, the connecting ring 41 and the cooling box 21 accordingly, which is convenient for disassembly and assembly.

[0026] Preferably, a first motor 16 is provided on the upper side of the cylinder 11, and the output shaft of the first motor 16 extends into the cylinder 11 and is connected to the spiral blade 10; a second motor 17 is provided in the cooling box 21, and the output shaft of the second motor 17 extends out of the cooling box 21 and is connected to the cutting blade 25.

[0027] The first motor 16 and the second motor 17 are equipped with corresponding power supplies, control modules and other components to facilitate start and stop control.

[0028] The working principle of this utility model is as follows:

[0029] Connect the extrusion disc 13 to the lower side of the cylinder 11 through the threaded barrel 15, then connect the positioning block 43 on the cooling box 21 to the positioning groove 42 on the connecting ring 41, and screw the locking bolt 45 into the threaded hole 44 so that the end of the locking bolt 45 contacts the positioning block 43, thereby connecting the extrusion disc 13, the connecting ring 41 and the cooling box 21 accordingly;

[0030] The rubber additive is fed into the barrel 11 through the feed port 12, and the spiral blade 10 is driven to rotate by the first motor 16 to stir, mix, convey and extrude the rubber additive. The rubber additive is formed into a long strip through the extrusion hole 14 on the extrusion disk 13, enters the guide ring 24 in the cooling box 21 and is conveyed downward in sequence. During the conveying process, cold air is provided by the air inlet pipe 31, and is blown into the cooling box 21 through multiple air blowing ports 22. The air is exhausted from the air outlet 23, so that an air flow circulation is generated in the cooling box 21. The long strip of rubber additive is evenly ventilated and cooled multiple times when passing between adjacent guide rings 24, and is discharged through the outlet 26. It is then cut by the cutting blade 25 to obtain rubber additive particles, thereby avoiding problems such as burrs, cracks or deformation on the cut edges of the rubber additive particles caused by direct cutting, which affects the quality of the finished rubber additive particles.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A rubber additive granulation device, characterized in that: The invention comprises a cylinder (11) with a spiral blade (10) provided therein, a feed port (12) provided on the upper side of the cylinder (11), an extrusion disc (13) connected to the lower side, and a plurality of extrusion holes (14) provided on the extrusion disc (13); a cooling box (21) is connected to the lower side of the extrusion disc (13), an air blowing port (22) and an air outlet (23) provided on the cooling box (21), a guide ring (24) corresponding to the extrusion hole (14) provided in the cooling box (21), the plurality of guide rings (24) being spaced apart from each other from top to bottom, and a cutting blade (25) provided at the bottom of the cooling box (21).

2. The rubber additive granulation device according to claim 1, characterized in that: An outlet (26) corresponding to the extrusion hole (14) is provided at the bottom of the cooling box (21); a plurality of guide rings (24) are arranged between the extrusion hole (14) and the outlet (26); and adjacent guide rings (24) are connected via a plurality of connecting columns (27).

3. The rubber additive granulation device according to claim 1, characterized in that: A guide hole (28) is provided on the inner side of the guide ring (24), and a chamfer (29) is provided on the upper side of the guide hole (28).

4. The rubber additive granulation device according to claim 1, characterized in that: A plurality of air blowing ports (22) are provided at the bottom of the cooling box (21), and a plurality of air outlets (23) are provided on the side wall of the cooling box (21).

5. The rubber additive granulation device according to claim 4, characterized in that: An annular evenly distributed hole (30) is coaxially opened at the center of the bottom of the cooling box (21), the air outlet (22) is connected to the annular evenly distributed hole (30), and an air inlet pipe (31) connected to the annular evenly distributed hole (30) is provided on the cooling box (21).

6. The rubber additive granulation device according to claim 1, characterized in that: A connecting ring (41) is provided on the lower side of the extrusion disc (13), and a plurality of positioning grooves (42) are provided on the connecting ring (41). A positioning block (43) corresponding to the positioning groove (42) is provided on the upper side of the cooling box (21). A threaded hole (44) is provided on the connecting ring (41) along its radial direction, and the threaded hole (44) is communicated with the positioning groove (42). A locking bolt (45) is connected in the threaded hole (44).

7. The rubber additive granulation device according to claim 1, characterized in that: A first motor (16) is provided on the upper side of the cylinder (11), and an output shaft of the first motor (16) extends into the cylinder (11) and is connected to the spiral blade (10); a second motor (17) is provided in the cooling box (21), and an output shaft of the second motor (17) extends out of the cooling box (21) and is connected to the cutting blade (25).

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