Quantitative mixing device for rubber adhesive RA

Abstract

The utility model discloses a quantitative mixing device for a rubber adhesive RA, and particularly relates to the field of the rubber adhesive RA. The quantitative mixing device comprises a mixing and preparing barrel, a measuring hopper is arranged above the mixing and preparing barrel, the outer surface of the measuring hopper is fixedly communicated with a material injection electric valve, a weighing assembly is arranged above the mixing and preparing barrel, and the weighing assembly is fixedly communicated with a material injection electric valve. A communicating pipe is arranged above the mixing and preparing barrel, a gear pump is arranged above the mixing and preparing barrel, and the input end of the gear pump is fixedly communicated with the outer surface of the communicating pipe. According to the device, rubber adhesive RA raw materials can be accurately quantified and can be rapidly injected into the mixing preparation cylinder, meanwhile, the liquid electromagnetic proportional valves on the detection pipes can control the flow of the liquid raw materials in the detection pipes according to the matching requirements of different raw materials, and it is ensured that the multiple raw materials are mixed according to the accurate proportion; and the problem that the quality is influenced due to inaccurate raw material proportioning is avoided, and the rubber adhesive RA raw materials are more simply mixed and quantitatively injected.

Description

Technical Field

[0001] This utility model relates to the field of rubber adhesives (RA), and more specifically, to a quantitative mixing device for rubber adhesives (RA). Background Technology

[0002] Rubber adhesive (RA) is a widely used adhesive material in the rubber industry. Its main component is a complex of hexamethoxymethyl melamine and organic and inorganic carriers. For example, RA-65 is composed of 65% hexamethoxymethyl melamine and inorganic carriers. RA is a methylene donor adhesive that can be used with various resorcinol donors. It produces an adhesive effect by reacting with methylene acceptors. At the vulcanization temperature, RA reacts with methylene acceptors to generate thermosetting resin, thereby achieving the bonding between rubber and skeleton materials.

[0003] In the production process of rubber products, rubber adhesive RA is a key additive. Its uniformity of mixing and the accuracy of proportioning have a decisive impact on the bonding strength, aging resistance and other properties of rubber products. As the rubber industry develops towards high performance and refinement, the requirements for quantitative mixing of rubber adhesive RA are becoming increasingly stringent. However, the traditional mixing equipment currently has the problem of material injection.

[0004] Existing mixing equipment often relies on manual operation for raw material proportioning and addition. Operators need to frequently weigh and add rubber adhesive RA and its supporting raw materials, which is not only labor-intensive but also cumbersome. Under long working conditions, operators are prone to fatigue, which can lead to operational errors, affecting mixing quality and production efficiency. In addition, manual operation also suffers from inconsistent operating standards. The different operating habits and techniques of different operators make it difficult to ensure that the raw material ratio is consistent each time, resulting in poor product quality stability.

[0005] Therefore, a quantitative mixing device for rubber adhesive RA is proposed to address the above-mentioned problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a quantitative mixing device for rubber adhesive RA to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quantitative mixing device for rubber adhesive RA, comprising a mixing and preparation cylinder, a quantitative hopper above the mixing and preparation cylinder, an electric injection valve fixedly connected to the outer surface of the quantitative hopper, a weighing assembly above the mixing and preparation cylinder, a connecting pipe above the mixing and preparation cylinder, a gear pump above the mixing and preparation cylinder, the input end of the gear pump being fixedly connected to the outer surface of the connecting pipe, multiple detection tubes fixedly connected to the outer surface of the connecting pipe, a liquid electromagnetic quantitative valve fixedly connected to the outer surface of each detection tube, a drain pipe fixedly connected to the output end of the gear pump, the bottom end of the drain pipe penetrating the mixing and preparation cylinder and extending into the interior of the mixing and preparation cylinder, a mixing mechanism inside the mixing and preparation cylinder, two weighing assemblies each including a weighing sensor fixedly mounted on the upper surface of the mixing and preparation cylinder, two detection plates fixedly connected to the outer surface of the quantitative hopper, and the detection ends of the two weighing sensors respectively contacting the bottom ends of the detection plates.

[0008] Preferably, the mixing mechanism includes a geared motor fixedly mounted on the bottom surface of the mixing and preparation cylinder, a stirring frame fixedly mounted on the output end of the geared motor, and a spiral blade fixedly mounted on the outer surface of the stirring frame.

[0009] Preferably, a bearing ring is fixedly embedded in the bottom surface of the mixing and preparation cylinder, and the outer surface of the bottom end of the stirring frame is fixedly connected to the inner ring of the bearing ring.

[0010] Preferably, the outer surface of the mixing and preparation cylinder is fixedly connected to a discharge pipe, the outer surface of the discharge pipe is fixedly connected to an electric valve, and one end of each detection tube is fixedly connected to a connector.

[0011] Preferably, a fixing plate is fixedly installed on the upper surface of the mixing and preparation cylinder, the rear end of the gear pump is fixedly installed on one side of the fixing plate, and two reinforcing plates are fixedly installed on the outer surface of the mixing and preparation cylinder, with the upper surfaces of the two reinforcing plates being fixedly connected to the outer surface of the connecting pipe.

[0012] Preferably, two limiting covers are fixedly installed on the upper surface of the mixing and preparation cylinder, and the inner walls of the two limiting covers are slidably connected to the outer surfaces of the two detection plates, respectively.

[0013] Preferably, the upper surface of the mixing and preparation cylinder is provided with a material injection through hole, and the bottom end of the metering hopper extends into the interior of the material injection through hole.

[0014] Preferably, a connecting block is fixedly installed on the outer surface of the mixing and preparation cylinder, and a controller is fixedly installed on the outer surface of the connecting block.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with existing technologies, this quantitative mixing device for rubber adhesive RA, through the cooperation of a weighing sensor and a detection plate, can detect the weight of the raw materials in the quantitative hopper in real time and transmit the data to the controller. When the preset weight is reached, the controller controls the electric valve to operate, achieving precise quantitative mixing of the rubber adhesive RA raw materials, which will be quickly injected into the mixing and preparation cylinder. At the same time, the liquid electromagnetic quantitative valve on the detection tube can control the flow rate of liquid raw materials in each detection tube according to different raw material ratio requirements, ensuring that multiple raw materials are mixed in precise proportions. This effectively avoids the problem of unstable rubber adhesive quality caused by inaccurate raw material ratios, and simplifies the quantitative mixing and injection of rubber adhesive RA raw materials.

[0017] Compared with existing technologies, the quantitative mixing device for this rubber adhesive RA uses a geared motor to drive the stirring frame and spiral blades to rotate at high speed, which can fully mix the raw materials entering the mixing and preparation cylinder. In addition, the special structure of the spiral blades enables the raw materials to achieve more efficient convection and diffusion during the mixing process, shortening the mixing time, improving the mixing efficiency, and accelerating the production speed of the rubber adhesive RA. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front.

[0019] Figure 2 This is a side sectional view of the present invention.

[0020] Figure 3 This is a front cross-sectional view of the present invention.

[0021] Figure 4 This is a top-view three-dimensional structural diagram of the present invention.

[0022] Figure 5 This is a frontal sectional view of the weighing component in this utility model.

[0023] The attached figures are labeled as follows: 1. Mixing and preparation cylinder; 2. Metering hopper; 3. Weighing assembly; 301. Limiting cover; 302. Weighing sensor; 303. Detection plate; 4. Connecting pipe; 5. Gear pump; 6. Fixing plate; 7. Detection pipe; 8. Mixing mechanism; 801. Gear motor; 802. Bearing ring; 803. Stirring frame; 804. Spiral blade; 9. Liquid electromagnetic metering valve; 10. Reinforcing plate; 11. Connector; 12. Electric valve; 13. Discharge pipe; 14. Injection through hole; 15. Connecting block; 16. Controller; 18. Drain pipe; 19. Injection electric valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] As attached Figures 1-5 The illustrated device for quantitative mixing of a rubber adhesive RA includes a mixing cylinder 1, a metering hopper 2 above the mixing cylinder 1, an electric injection valve 19 fixedly connected to the outer surface of the metering hopper 2, a weighing assembly 3 above the mixing cylinder 1, a connecting pipe 4 above the mixing cylinder 1, a gear pump 5 above the mixing cylinder 1, the input end of the gear pump 5 being fixedly connected to the outer surface of the connecting pipe 4, and multiple detection tubes 7 fixedly connected to the outer surface of the connecting pipe 4. Each detection tube 7 has a liquid electromagnetic metering valve 9 fixedly connected to its outer surface. The liquid electromagnetic metering valve 9 mainly consists of an electromagnetic coil, a valve core, a valve body, and a control circuit. A controller 16 sends corresponding electrical signals to the control circuit of the liquid electromagnetic metering valve 9 according to preset raw material ratio parameters. The control circuit adjusts the energization of the electromagnetic coil according to the command to achieve precise control of the valve core position, thereby accurately controlling the flow rate of liquid raw materials in each detection tube 7 to the required value, ensuring that multiple raw materials enter the connecting tube 4 in an accurate proportion, providing a guarantee for the subsequent mixing of high-quality rubber adhesive RA. The output end of the gear pump 5 is fixedly connected to the drain pipe 18, the bottom end of the drain pipe 18 passes through the mixing and preparation cylinder 1 and extends into the interior of the mixing and preparation cylinder 1. The interior of the mixing and preparation cylinder 1 is equipped with a mixing mechanism 8. Both weighing components 3 include a weighing sensor 302 fixedly installed on the upper surface of the mixing and preparation cylinder 1. Two detection plates 303 are fixedly connected to the outer surface of the metering hopper 2, and the detection ends of the two weighing sensors 302 are in contact with the bottom ends of the detection plates 303 respectively.

[0026] As can be seen from the above description, the present invention has the following beneficial effects, wherein: through the cooperation of the weighing sensor 302 and the detection plate 303, the weight of the raw material in the quantitative hopper 2 can be detected in real time and the data is transmitted to the controller 16. When the preset weight is reached, the controller 16 controls the injection electric valve 19 to act, so as to achieve accurate quantitative metering of the rubber adhesive RA raw material, and quickly inject it into the mixing and preparation cylinder 1 for mixing. Example

[0027] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with reference to the specific working method described in detail:

[0028] like Figures 1-5 As shown, in a preferred embodiment, the mixing mechanism 8 includes a geared motor 801 fixedly mounted on the bottom surface of the mixing cylinder 1. A stirring frame 803 is fixedly mounted on the output end of the geared motor 801. A spiral blade 804 is fixedly mounted on the outer surface of the stirring frame 803. A bearing ring 802 is fixedly embedded in the bottom surface of the mixing cylinder 1. The outer surface of the bottom end of the stirring frame 803 is fixedly connected to the inner ring of the bearing ring 802. A discharge pipe 13 is fixedly connected to the outer surface of the mixing cylinder 1. An electric valve 12 is fixedly connected to the outer surface of the discharge pipe 13. One end of each detection pipe 7 is fixedly connected to a connector 11. Furthermore, by driving the stirring frame 803 to rotate via the geared motor 801, the mixing mechanism can provide... The power source, through the unique spiral structure of the spiral blade 804 during rotation, can generate strong convection and diffusion motion of the raw materials, achieving full and efficient mixing. The bearing ring 802 provides stable support for the mixing frame 803, reducing shaking and friction during rotation. The discharge pipe 13 and electric valve 12 are used to control the discharge of the rubber adhesive RA after mixing. The electric valve 12 can precisely control the start and stop of the discharge and the flow rate according to production needs. One end of the detection pipe 7 is fixedly connected to the connector 11, which facilitates connection with the external raw material conveying pipeline. Different liquid raw materials can enter the detection pipe 7 and, after the flow rate is controlled by the liquid electromagnetic metering valve 9, enter the interior of the connecting pipe 4.

[0029] like Figures 1-5As shown, in a preferred embodiment, a fixing plate 6 is fixedly installed on the upper surface of the mixing and preparation cylinder 1. The rear end of the gear pump 5 is fixedly installed on one side of the fixing plate 6. Two reinforcing plates 10 are fixedly installed on the outer surface of the mixing and preparation cylinder 1, and the upper surfaces of the two reinforcing plates 10 are fixedly connected to the outer surface of the connecting pipe 4. Two limiting covers 301 are fixedly installed on the upper surface of the mixing and preparation cylinder 1, and the inner walls of the two limiting covers 301 are slidably connected to the outer surfaces of the two detection plates 303 respectively. A material injection hole 14 is opened on the upper surface of the mixing and preparation cylinder 1, and the bottom end of the metering hopper 2 extends into the interior of the material injection hole 14. A connecting block 15 is fixedly installed on the outer surface of the mixing and preparation cylinder 1, and a controller 16 is fixedly installed on the outer surface of the connecting block 15. Furthermore, the fixing plate 6 can provide a stable installation position for the gear pump 5, ensuring that the gear pump 5 will not shake during operation. The structural strength of the connecting pipe 4 is enhanced by two reinforcing plates 10 to prevent deformation or damage to the connecting pipe 4 due to pressure or other factors during the raw material transportation process, ensuring smooth raw material transportation. The two limit covers 301 assist the weighing sensor 302 in more accurately detecting the weight of the raw material in the metering hopper 2, reducing the error caused by the shaking of the metering hopper 2. On the other hand, they limit the movement range of the metering hopper 2 to prevent it from deviating during operation, ensuring the stability and accuracy of the entire metering process. The feeding through hole 14 provides a channel for the raw material in the metering hopper 2 to enter the mixing and preparation cylinder 1, allowing the raw material to smoothly enter the mixing mechanism 8 for mixing. The controller 16 can control the operation of components such as the feeding electric valve 19, the liquid electromagnetic metering valve 9, the gear pump 5, the reduction motor 801, and the electric valve 12 to realize the automated operation of the device.

[0030] The working process of this utility model is as follows:

[0031] In the later use of this quantitative mixing device for rubber adhesive RA, the raw material of rubber adhesive RA is first injected into the quantitative hopper 2. The weighing sensor 302 detects the weight of the raw material in the quantitative hopper 2 in real time and transmits the data to the controller 16. When the preset weight is reached, the controller 16 controls the electric valve 19 to open, which allows the raw material of rubber adhesive to be injected downwards. Other liquid raw materials enter multiple detection tubes 7. The liquid electromagnetic quantitative valve 9 can control the flow rate of the raw material in each detection tube 7 according to the different raw material ratio requirements. The gear pump 5 starts, which can transport the raw material in the connecting pipe 4 to the mixing cylinder 1 through the drain pipe 18. Then, the reduction motor 801 drives the stirring frame 803 and the spiral blade 804 to stir and mix the raw material entering the mixing cylinder 1. Finally, the discharge is controlled by the electric valve 12 on the surface of the discharge pipe 13. This is the working process and working principle of the device.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quantitative mixing device for a rubber adhesive RA, comprising a mixing and preparation cylinder (1), characterized in that: A metering hopper (2) is provided above the mixing and preparation cylinder (1). An electric injection valve (19) is fixedly connected to the outer surface of the metering hopper (2). A weighing assembly (3) is provided above the mixing and preparation cylinder (1). A connecting pipe (4) is provided above the mixing and preparation cylinder (1). A gear pump (5) is provided above the mixing and preparation cylinder (1). The input end of the gear pump (5) is fixedly connected to the outer surface of the connecting pipe (4). Multiple detection tubes (7) are fixedly connected to the outer surface of the connecting pipe (4). A liquid electromagnetic metering device is fixedly connected to the outer surface of each detection tube (7). The valve (9) and the output end of the gear pump (5) are fixedly connected to the drain pipe (18). The bottom end of the drain pipe (18) passes through the mixing and preparation cylinder (1) and extends into the interior of the mixing and preparation cylinder (1). The interior of the mixing and preparation cylinder (1) is provided with a mixing mechanism (8). Both weighing components (3) include a weighing sensor (302) fixedly installed on the upper surface of the mixing and preparation cylinder (1). The outer surface of the metering hopper (2) is fixedly connected to two detection plates (303). The detection ends of the two weighing sensors (302) are in contact with the bottom ends of the detection plates (303) respectively.

2. The quantitative mixing device for rubber adhesive RA according to claim 1, characterized in that: The mixing mechanism (8) includes a geared motor (801) fixedly installed on the bottom surface of the mixing and preparation cylinder (1), a stirring rack (803) fixedly installed at the output end of the geared motor (801), and a spiral blade (804) fixedly installed on the outer surface of the stirring rack (803).

3. The quantitative mixing device for rubber adhesive RA according to claim 2, characterized in that: The bottom surface of the mixing and preparation cylinder (1) is fixedly inlaid with a bearing ring (802), and the outer surface of the bottom end of the stirring rack (803) is fixedly connected to the inner ring of the bearing ring (802).

4. The quantitative mixing device for rubber adhesive RA according to claim 1, characterized in that: The outer surface of the mixing and preparation cylinder (1) is fixedly connected to the discharge pipe (13), the outer surface of the discharge pipe (13) is fixedly connected to the electric valve (12), and one end of each detection tube (7) is fixedly connected to the connector (11).

5. The quantitative mixing device for rubber adhesive RA according to claim 1, characterized in that: A fixing plate (6) is fixedly installed on the upper surface of the mixing and preparation cylinder (1). The rear end of the gear pump (5) is fixedly installed on one side of the fixing plate (6). Two reinforcing plates (10) are fixedly installed on the outer surface of the mixing and preparation cylinder (1). The upper surfaces of the two reinforcing plates (10) are fixedly connected to the outer surface of the connecting pipe (4).

6. The quantitative mixing device for rubber adhesive RA according to claim 1, characterized in that: Two limiting covers (301) are fixedly installed on the upper surface of the mixing and preparation cylinder (1), and the inner walls of the two limiting covers (301) are slidably connected to the outer surfaces of the two detection plates (303).

7. The quantitative mixing device for rubber adhesive RA according to claim 1, characterized in that: The upper surface of the mixing and preparation cylinder (1) is provided with a material injection through hole (14), and the bottom end of the metering hopper (2) extends into the interior of the material injection through hole (14).

8. The quantitative mixing device for rubber adhesive RA according to claim 1, characterized in that: A connecting block (15) is fixedly installed on the outer surface of the mixing and preparation cylinder (1), and a controller (16) is fixedly installed on the outer surface of the connecting block (15).

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