Raw material stirring device for rubber band production

Abstract

The utility model relates to the technical field of rubber product equipment, in particular to a raw material stirring device for rubber band production, which comprises a tank body for accommodating raw materials, a feed port is arranged on the tank body, a mixing mechanism for stirring the raw materials is mounted on the tank body, and the mixing mechanism comprises a cover plate clamped on the tank body. A motor is fixedly installed on the cover plate, the output end of the motor is fixedly connected with a supporting frame, a transmission shaft a and a transmission shaft b are rotationally installed on the two sides of the supporting frame respectively, a plurality of blades are fixedly connected to the transmission shaft a and the transmission shaft b, and a transmission assembly used for enabling the transmission shafts b on the two sides to rotate in the opposite directions is arranged on the supporting frame. The transmission shaft b and the transmission shaft a rotate while performing annular rotation, the rotation directions of the transmission shaft a and the transmission shaft b are opposite, raw materials on the two sides in the tank body are subjected to convection, through convection mixing, the interaction among the raw materials is more sufficient, the mixing efficiency is higher, the mixing time can be shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber products, in particular to a raw material stirring device for rubber band production. Background Art

[0002] In the production process of rubber bands, uniform mixing of raw materials is a critical step. During the stirring process, the raw materials will be subjected to mechanical energy and produce friction, which will cause energy to be converted into heat energy, causing the temperature of the raw materials to rise. High temperature will accelerate the aging process of rubber materials and shorten the service life of rubber bands. Although the existing stirring device will install a cooling device on the stirring tank, the raw materials will be cooled by contacting the cooling device, but the stirring rod in the stirring device usually rotates from the center to stir the raw materials, so that the raw materials will produce swirl during the stirring process, and the raw materials in the middle part are difficult to contact the cooling device, which will lead to uneven cooling effect, causing the temperature of some raw materials to be too high, affecting product quality. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a raw material stirring device for rubber band production, which has the advantage of making the raw materials evenly contact with the cooling device to avoid overheating of part of the raw materials and causing rubber denaturation or burning. It solves the problem that the middle part of the raw materials is difficult to contact with the cooling device, which will cause uneven cooling effect and affect product quality.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A raw material stirring device for rubber band production comprises a tank body for containing raw materials, a feed port is provided on the tank body, a mixing mechanism for stirring the raw materials is installed on the tank body, the mixing mechanism comprises a cover plate clamped on the tank body, a motor is fixedly installed on the cover plate, a support frame is fixedly connected to the output end of the motor, a transmission shaft a and a transmission shaft b are rotatably installed on both sides of the support frame, a plurality of blades are fixedly connected to the transmission shaft a and the transmission shaft b, and a transmission assembly for rotating the transmission shafts b on both sides in opposite directions is provided on the support frame.

[0006] Preferably, the transmission assembly includes a spur gear b fixedly connected to the end of a transmission shaft a, a connecting shaft is rotatably mounted on a support frame, a spur gear a is fixedly connected to the end of the connecting shaft and meshes with the spur gear b for transmission, an inner gear ring is fixedly connected to the inner wall of the cover plate and meshes with the spur gear a for transmission, and a belt assembly is provided on the transmission shaft a for driving the transmission shaft b to rotate.

[0007] Preferably, the belt assembly includes pulleys mounted on the connecting shaft and the transmission shaft b, and the pulleys are connected via belt transmission.

[0008] Preferably, a water storage jacket for cooling raw materials is fixedly connected to the tank body, a water pump for conveying liquid into the water storage jacket is provided on the outside of the tank body, the water pump is connected to the water storage jacket through a pipeline, and a water outlet pipe for draining liquid is installed on the outside of the water storage jacket.

[0009] Preferably, a protective cover for protecting the belt assembly is fixedly connected to the support frame.

[0010] Preferably, the blade is willow-leaf-shaped, and the outside of the support frame is provided with a chamfer for reducing resistance.

[0011] By means of the above technical solution, the utility model provides a raw material stirring device for rubber band production, which has at least the following beneficial effects:

[0012] 1. In the raw material stirring device for rubber band production, the transmission shaft b and the transmission shaft a rotate on their own while performing circular rotation. The transmission shaft a and the transmission shaft b rotate in opposite directions. The transmission shaft a and the transmission shaft b also drive the blades thereon to rotate, so as to convect the raw materials on both sides of the tank body. Through convection mixing, the interaction between the raw materials is more sufficient, the mixing efficiency is higher, the mixing time can be shortened, and the production efficiency can be improved.

[0013] 2. The raw material stirring device used for rubber band production makes the raw materials contact and mix with the inner wall of the water storage jacket continuously, ensuring the uniformity of the overall temperature, avoiding the situation of excessively high local temperature, improving the uniformity of the cooling effect, and avoiding overheating leading to rubber denaturation or burning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in the front view direction;

[0016] Figure 2 It is a cross-sectional view of the tank body of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the mixing mechanism of the utility model.

[0018] Reference numerals:

[0019] 100, tank body; 101, feed port; 102, water storage jacket; 103, water pump;

[0020] 200, mixing mechanism; 201, cover plate; 202, belt assembly; 203, support frame; 204, protective cover; 205, motor; 206, blades; 207, transmission shaft a; 208, transmission shaft b; 209, spur gear a; 210, inner ring gear; 211, spur gear b; 212, connecting shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The raw materials for the production of rubber bands mainly include natural rubber and synthetic rubber. Mixing these two raw materials can improve the performance and quality of rubber bands. During the mixing process, the temperature of the raw materials should be monitored regularly to avoid overheating due to friction, which may cause the raw materials to denature or burn. Especially for natural rubber, overheating can easily lead to vulcanization reaction and affect the performance of rubber. It is also necessary to ensure that the raw materials can be fully and evenly mixed during the mixing process to avoid local uneven concentration and affect product performance.

[0023] Embodiment 1:

[0024] Combination Figure 1-Figure 3 As shown, the utility model provides a raw material stirring device for rubber band production, comprising a tank body 100 for containing raw materials, a feed inlet 101 being provided on the tank body 100, and a mixing mechanism 200 for stirring the raw materials being installed on the tank body 100, so that various components in the rubber raw materials can be blended with each other, thereby improving the stability and consistency of the rubber band and ensuring stable product quality;

[0025] Stirring and mixing can fully mix the various ingredients in different raw materials, ensure the accurate ratio of the ingredients of the rubber band, and avoid the situation of uneven ingredients. The mixing mechanism 200 includes a cover plate 201 clamped on the tank body 100, and a motor 205 is fixedly installed on the cover plate 201. The output end of the motor 205 is fixedly connected to a support frame 203, and a transmission shaft a207 and a transmission shaft b208 are rotatably installed on both sides of the support frame 203. A plurality of blades 206 are fixedly connected to the transmission shaft a207 and the transmission shaft b208. A transmission component for rotating the transmission shafts b208 on both sides in opposite directions is provided on the support frame 203. The machine 205 starts to drive the support frame 203 to rotate, and the transmission shaft b208 and the transmission shaft a207 rotate in a circle with the support frame 203. Due to the provision of a transmission component, the transmission shaft b208 and the transmission shaft a207 rotate on their own while performing a circular rotation. The directions of rotation of the transmission shaft a207 and the transmission shaft b208 are opposite. The transmission shaft a207 and the transmission shaft b208 will also drive the blades 206 thereon to rotate, and the raw materials on both sides of the tank body 100 are convected. Through convection mixing, the interaction between the raw materials is more sufficient, the mixing efficiency is higher, the mixing time can be shortened, and the production efficiency can be improved.

[0026] Multiple power sources require a larger installation space, which increases the size and complexity of the equipment. In addition, each power source requires independent maintenance and repair, which increases the maintenance cost and difficulty. The transmission assembly includes a spur gear b211 fixedly connected to the end of the transmission shaft a207. A connecting shaft 212 is rotatably mounted on the support frame 203. A spur gear a209 meshing with the spur gear b211 is fixedly connected to the end of the connecting shaft 212. An inner gear ring 210 meshing with the spur gear a209 is fixedly connected to the inner wall of the cover plate 201. The transmission shaft a207 is provided with a gear for driving the transmission shaft b207. 8 The belt assembly 202 rotates, and the connecting shaft 212 revolves along with the support frame 203. The spur gear a209 on the connecting shaft 212 meshes with the inner gear ring 210 to drive the connecting shaft 212 to rotate. The spur gear a209 on the connecting shaft 212 drives the transmission shaft a207 to rotate in the opposite direction through the spur gear b211. At the same time, the connecting shaft 212 drives the transmission shaft b208 to rotate in the same direction through the belt assembly 202. The motor 205 is used as a single power source to realize multiple rotation modes, thereby improving the mixing quality and reducing the manufacturing cost of the equipment.

[0027] Furthermore, the belt assembly 202 includes a pulley mounted on the connecting shaft 212 and the transmission shaft b208. The pulleys are connected by belt transmission. The rotation of the pulley on the connecting shaft 212 drives another pulley to rotate through the belt, and then drives the transmission shaft b208 to rotate, thereby realizing the opposite direction rotation of the blades 206 on both sides, which can avoid local accumulation of raw materials in the tank body 100, reduce the risk of uneven mixing, and improve product quality.

[0028] It can be seen from the embodiments that convection mixing can achieve better mixing effect and save energy costs without increasing additional energy consumption.

[0029] Embodiment 2:

[0030] Combination Figure 1-Figure 3 As shown, on the basis of Example 1, the temperature needs to be controlled during the stirring process, especially for natural rubber. Overheating can easily lead to vulcanization reaction and affect the rubber performance. A water storage jacket 102 for cooling the raw materials is fixedly connected to the tank body 100. A water pump 103 for conveying liquid to the water storage jacket 102 is provided on the outside of the tank body 100. The water pump 103 is connected to the water storage jacket 102 through a pipeline. The outside of the water storage jacket 102 is connected to a water outlet pipe for extracting the liquid. The raw materials in the tank body 100 will generate heat during high-speed stirring, and the water pump 103 will introduce cooling liquid into the water storage jacket 102. Then the water storage jacket 102 will cool the liquid in the tank body 100, which can reduce the temperature of the raw materials and avoid rubber denaturation or burning caused by overheating.

[0031] Specifically, a support box 204 for protecting the belt assembly 202 is fixedly connected to the support frame 203 , which can prevent the raw material from contacting the support box 204 and avoid corrosion to the belt assembly 202 , which is beneficial to improving the service life of the belt assembly 202 .

[0032] Furthermore, the blades 206 are willow-leaf-shaped, which can generate stronger eddies and turbulence, promote convective mixing of the raw materials, and make the mixing more uniform. The outside of the support frame 203 is provided with a chamfer for reducing resistance.

[0033] It can be known from the above embodiments that: first, the raw materials are added into the tank body 100 through the feed port 101, and then the required additives are added, the motor 205 is started to drive the support frame 203 to rotate, the transmission shaft b208 and the transmission shaft a207 rotate in a circle with the support frame 203, the connecting shaft 212 revolves along the support frame 203, the spur gear a209 on the connecting shaft 212 meshes along the inner gear ring 210 to rotate the connecting shaft 212, the spur gear a209 on the connecting shaft 212 drives the transmission shaft a207 to rotate in the opposite direction through the spur gear b211, and at the same time, the connecting shaft 212 drives the transmission shaft b208 to rotate in the same direction through the belt assembly 202, and then the raw materials can be stirred in two directions to achieve convection of the raw materials on both sides. After the stirring is completed, the power is turned off.

[0034] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material stirring device for rubber band production, comprising a tank (100) for containing raw materials, characterized in that: The tank body (100) is provided with a feed port (101), and a mixing mechanism (200) for stirring the raw materials is installed on the tank body (100); The mixing mechanism (200) comprises a cover plate (201) clamped on the tank body (100), a motor (205) being fixedly mounted on the cover plate (201), an output end of the motor (205) being fixedly connected to a support frame (203), a transmission shaft a (207) and a transmission shaft b (208) being rotatably mounted on both sides of the support frame (203), a plurality of blades (206) being fixedly connected to both the transmission shaft a (207) and the transmission shaft b (208), and a transmission assembly for rotating the transmission shafts b (208) on both sides in opposite directions being provided on the support frame (203).

2. The raw material stirring device for rubber band production according to claim 1, characterized in that: The transmission assembly comprises a spur gear b (211) fixedly connected to the end of a transmission shaft a (207); a connecting shaft (212) is rotatably mounted on the support frame (203); a spur gear a (209) meshing with the spur gear b (211) is fixedly connected to the end of the connecting shaft (212); an inner gear ring (210) meshing with the spur gear a (209) is fixedly connected to the inner wall of the cover plate (201); and a belt assembly (202) for driving the transmission shaft b (208) to rotate is provided on the transmission shaft a (207).

3. The raw material stirring device for rubber band production according to claim 2, characterized in that: The belt assembly (202) comprises a pulley mounted on a connecting shaft (212) and a transmission shaft b (208), and the pulleys are connected via a belt drive.

4. The raw material stirring device for rubber band production according to claim 1, characterized in that: The tank body (100) is fixedly connected with a water storage jacket (102) for cooling the raw materials. A water pump (103) for conveying liquid into the water storage jacket (102) is arranged outside the tank body (100). The water pump (103) is connected to the water storage jacket (102) through a pipeline. A water outlet pipe for draining liquid is installed outside the water storage jacket (102).

5. The raw material stirring device for rubber band production according to claim 2, characterized in that: A protective cover (204) for protecting the belt assembly (202) is fixedly connected to the support frame (203).

6. The raw material stirring device for rubber band production according to claim 1, characterized in that: The blade (206) is willow-leaf-shaped, and the outside of the support frame (203) is provided with a chamfer for reducing resistance.

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