A dispensing device for binder production

Abstract

This utility model relates to the technical field of adhesive production equipment, and provides a mixing device for adhesive production, including a tank. Four support legs arranged in a circumferential array are fixedly installed at the bottom of the tank. A discharge pipe is connected to and fixedly installed on the lower side of one side of the tank, and a valve is connected to and installed on the discharge pipe. An inner bushing is rotatably installed inside the tank, and multiple first stirring elements arranged in a circumferential array are fixedly installed on the inner bushing. Each first stirring element has a groove. An adjustment mechanism is installed on the support plate. The first stirring elements and second stirring elements form a composite flow field of "strong shear at the center + strong scraping at the edge," improving the dispersion coefficient of high-viscosity raw materials and shortening the mixing time. The device also has a dynamic self-cleaning function of wall scraping and stirring. The intermittent upward movement of the cone triggers the radial expansion of the second stirring element, realizing intelligent switching between "stirring-wall scraping" modes, reducing the amount of raw material residue on the inner wall of the tank, and improving the raw material utilization rate.

Description

Technical Field

[0001] This utility model belongs to the technical field of adhesive production equipment, and in particular relates to a mixing device for adhesive production. Background Technology

[0002] Adhesives are substances that can firmly bond two or more homogeneous / heterogeneous materials together through interfacial interactions. They are widely used in industrial production and daily life and are key materials for material bonding and composites. In adhesive production, the mixing device is a critical piece of equipment, responsible for mixing various raw materials in precise proportions to ensure that the final adhesive product has stable and reliable properties.

[0003] Existing mixing equipment for binder production thoroughly mixes metered raw materials to induce chemical reactions or physical mixing, forming binders with specific properties. Depending on the binder's properties and production requirements, various types of agitators are used, such as paddle agitators, anchor agitators, and turbine agitators. However, in existing mixing equipment, high-viscosity, easily clinging raw materials tend to adhere to the inner wall of the mixing container during mixing. This results in a significant amount of material adhering to the inner wall, which cannot participate in the mixing process, leading to a discrepancy between the actual feed rate and the designed formula. Furthermore, manual or mechanical cleaning of the inner wall is required after each production run, with residual raw materials reaching 3%-8% of the total feed rate. This increases raw material costs and reduces the yield (output of qualified products / total feed rate). To address these issues, designing a new mixing equipment for binder production is essential. Utility Model Content

[0004] This invention provides a mixing device for adhesive production to solve the above-mentioned problems in the prior art.

[0005] This utility model is implemented as follows: a mixing device for adhesive production includes a tank, four support legs arranged in a circumferential array are fixedly installed at the bottom of the tank, a discharge pipe is connected to and fixedly installed on the lower end of one side of the tank, and a valve is connected to and installed on the discharge pipe.

[0006] An inner bushing is rotatably mounted inside the tank. Multiple first stirring elements arranged in a circular array are fixedly mounted on the inner bushing. Each first stirring element has a groove, and a second stirring element is inserted into it. One end of the second stirring element is slidably disposed within the groove. Two elastic elements are spaced apart vertically within the groove, with their ends fixedly connected to the first and second stirring elements, respectively. A connecting rod is located within the groove, with one end fixedly connected to the second stirring element and the other end inserted into the inner bushing. A support plate is fixedly mounted at the bottom of the tank, and an adjustment mechanism is installed on the support plate to adjust the position of the second stirring elements.

[0007] Preferably, each of the support legs has a shock-absorbing pad fixedly connected to its bottom.

[0008] Preferably, the end of the second stirring member is provided with an arc surface and the end face of the second stirring member is polished.

[0009] Preferably, a drive mechanism is mounted on the support plate, the drive mechanism being connected to the inner bushing and used to drive the first stirring component and the second stirring component to rotate.

[0010] Preferably, the adjusting mechanism includes an electric telescopic rod, which is fixedly mounted on a support plate. A connecting rod is fixedly mounted on the output end of the electric telescopic rod, and a cone is fixedly mounted on the upper end of the connecting rod, with the cone located in the inner bushing.

[0011] Preferably, the drive mechanism includes an external gear ring, the lower end of the inner bushing passes through the tank body, the external gear ring is fixedly connected to the lower end of the inner bushing, a servo motor is fixedly mounted on the support plate, and a drive wheel is fixedly mounted on the output shaft end of the servo motor, the drive wheel meshing with the external gear ring.

[0012] Preferably, the inner wall of the tank is provided with multiple heating wires.

[0013] Preferably, the outer side of the tank is provided with material level scale lines.

[0014] Compared with related technologies, the mixing device for adhesive production provided by this utility model has the following advantages:

[0015] The first and second agitators form a composite flow field of "strong shear at the center + strong scraping at the edges," improving the dispersion coefficient of high-viscosity raw materials and shortening the mixing time. The device also features a dynamic self-cleaning function with wall-scraping agitation. The intermittent upward movement of the cone triggers the radial expansion of the second agitator, achieving intelligent switching between "aggregation-wall scraping" modes. This reduces the amount of residual raw material on the inner wall of the tank, increases raw material utilization, and effectively disrupts the "climbing rod effect" of high-viscosity raw materials. By cleaning the raw material adhering to the inner wall of the tank, all raw materials within the tank participate in the mixing process. After the operation is completed, no manual or mechanical cleaning of the inner wall is required, and all raw materials within the tank can be effectively utilized. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is an enlarged schematic diagram of a portion of the tank body of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0019] Figure 4 This is an enlarged cross-sectional view of a portion of the structure of the first stirring component of this utility model;

[0020] Figure 5 This is an enlarged schematic diagram of a portion of the conical part of this utility model.

[0021] In the diagram: 1. Tank body; 2. Support leg; 3. Discharge pipe; 4. Valve; 5. Inner bushing; 6. First agitator; 7. Slide groove; 8. Second agitator; 9. Elastic element; 10. Connecting rod; 11. Support plate; 12. Electric telescopic rod; 13. Connecting rod; 14. Cone; 15. External gear ring; 16. Servo motor; 17. Drive wheel. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] A preferred embodiment of the mixing apparatus for adhesive production provided by this utility model is, for example... Figures 1 to 5 As shown:

[0025] A mixing device for adhesive production includes a tank 1. Four support legs 2 arranged in a circular array are fixedly installed at the bottom of the tank 1. A discharge pipe 3 is connected to and fixedly installed at the lower end of one side of the tank 1, and a valve 4 is connected to and installed on the discharge pipe 3. An inner bushing 5 is rotatably installed inside the tank 1. Multiple first stirring elements 6 arranged in a circular array are fixedly installed on the inner bushing 5. Each first stirring element 6 has a groove 7. Second stirring elements 8 are inserted into the first stirring elements 6, with one end of each second stirring element 8 slidably disposed within the groove 7. Two elastic elements 9 are spaced apart vertically within the groove 7, with their ends fixedly connected to the first stirring elements 6 and the second stirring elements 8, respectively. A connecting rod 10 is provided within the groove 7, with one end fixedly connected to the second stirring element 8 and the other end inserted into the inner bushing 5. A support plate 11 is fixedly installed at the bottom of the tank 1, and an adjustment mechanism is installed on the support plate 11 to adjust the position of the second stirring elements 8.

[0026] Each of the support legs 2 is fixedly connected to a shock-absorbing pad, which can reduce the vibration generated during the operation of the device and make its operation more stable. The end of the second stirring element 8 is provided with an arc surface and the end face of the second stirring element 8 is polished. When the end of the second stirring element 8 contacts the inner wall of the tank 1, the friction between the two is small, so that the wear of the contact surface between the two is small.

[0027] The support plate 11 is equipped with a drive mechanism, which is connected to the inner bushing 5 and drives the first stirring component 6 and the second stirring component 8 to rotate. The adjustment mechanism includes an electric telescopic rod 12, which is fixedly mounted on the support plate 11. A connecting rod 13 is fixedly mounted at the output end of the electric telescopic rod 12, and a cone 14 is fixedly mounted at the upper end of the connecting rod 13, located within the inner bushing 5. The drive mechanism includes an external gear ring 15, with the lower end of the inner bushing 5 penetrating the tank 1. The external gear ring 15 is fixedly connected to the lower end of the inner bushing 5. A servo motor 16 is fixedly mounted on the support plate 11, and a drive wheel 17 is fixedly mounted at the output shaft end of the servo motor 16, meshing with the external gear ring 15.

[0028] By placing different raw materials into the tank 1 in a certain proportion, the servo motor 16 drives the drive wheel 17 to rotate, the drive wheel 17 drives the outer gear ring 15 to rotate, the outer gear ring 15 and the inner bushing 5 rotate synchronously, and the inner bushing 5 rotates and drives the first stirring element 6 and the second stirring element 8 to rotate synchronously, thereby mixing the various raw materials in the tank 1 through the first stirring element 6 and the second stirring element 8.

[0029] The electric telescopic rod 12 intermittently drives the connecting rod 13 to move up and down reciprocally. When the connecting rod 13 moves upward, it simultaneously drives the cone 14 to move upward. The cone 14 pushes multiple connecting rods 10 to one side. The connecting rods 10 and the second stirring element 8 move synchronously. The end of the second stirring element 8 contacts the inner wall of the tank 1, and the elastic element 9 is stretched. At this time, during the rotation of the second stirring element 8, it can scrape off the raw material adhering to the inner wall of the tank 1, thereby cleaning the inner wall of the tank 1. After a period of time, the electric telescopic rod 12 drives the connecting rod 13 to reset, the cone 14 to reset, and the elastic element 9 drives the second stirring element 8 to reset, and the device continues to perform mixing. When mixing is completed, the valve 4 is opened and the raw material is discharged from the discharge pipe 3.

[0030] The inner wall of tank 1 is equipped with multiple heating wires, which heat the material inside tank 1 to ensure it is mixed at a suitable temperature. A material level scale is provided on the outer side of tank 1 for easy monitoring.

[0031] The first and second agitators (with a retractable scraping structure) form a composite flow field of "strong shear at the center + strong scraping at the edges," which improves the dispersion coefficient of high-viscosity raw materials (such as epoxy resin and polyurethane prepolymer) by 30%-50% and shortens the mixing time by 20%-30%. The device also has a dynamic self-cleaning function of scraping and agitation. The radial expansion of the second agitator 8 is triggered by the intermittent upward movement of the cone 14, realizing intelligent switching between "aggregation-scraping" modes. The residual amount of raw materials on the inner wall of tank 1 is reduced from 8%-12% in traditional solutions to ≤1.5%, and the raw material utilization rate is increased by 6.5%-10.5%. During the mixing process, the peak shear stress on the inner wall reaches 50-80 Pa, effectively destroying the "climbing effect" of high-viscosity raw materials. By cleaning the raw materials adhering to the inner wall of tank 1, all raw materials in tank 1 participate in the mixing. After the operation is completed, there is no need for manual or mechanical cleaning of the inner wall, and all raw materials in tank 1 can be effectively utilized.

[0032] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0033] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A compounding apparatus for binder production, characterized by, Includes a tank body (1), the bottom of which is fixedly installed with four support legs (2) arranged in a circular array, and a discharge pipe (3) is connected to and fixedly installed on the lower end of one side of the tank body (1), and a valve (4) is connected to and installed on the discharge pipe (3); The tank body (1) is rotatably fitted with an inner bushing (5). Multiple first stirring elements (6) arranged in a circular array are fixedly mounted on the inner bushing (5). A groove (7) is provided on the first stirring element (6). A second stirring element (8) is inserted into the first stirring element (6). One end of the second stirring element (8) is slidably disposed in the groove (7). Two elastic elements (9) are provided in the groove (7) and spaced apart vertically. The two ends of the elastic elements (9) are fixedly connected to the first stirring element (6) and the second stirring element (8) respectively. A connecting rod (10) is provided in the groove (7). One end of the connecting rod (10) is fixedly connected to the second stirring element (8) and the other end is inserted into the inner bushing (5). A support plate (11) is fixedly mounted at the bottom of the tank body (1). An adjustment mechanism is installed on the support plate (11). The adjustment mechanism is used to adjust the position of the second stirring element (8).

2. The compounding apparatus for binder production according to claim 1, wherein The bottom of each support leg (2) is fixedly connected with a shock-absorbing pad.

3. The mixing apparatus for adhesive production as described in claim 1, characterized in that, The end of the second stirring component (8) is provided with an arc surface and the end face of the second stirring component (8) is polished.

4. The mixing apparatus for adhesive production as described in claim 1, characterized in that, A drive mechanism is installed on the support plate (11). The drive mechanism is connected to the inner bushing (5) and is used to drive the first stirring component (6) and the second stirring component (8) to rotate.

5. The mixing apparatus for adhesive production as described in claim 4, characterized in that, The adjustment mechanism includes an electric telescopic rod (12), which is fixedly installed on the support plate (11). A connecting rod (13) is fixedly installed at the output end of the electric telescopic rod (12). A cone (14) is fixedly installed at the upper end of the connecting rod (13), and the cone (14) is located in the inner bushing (5).

6. The mixing apparatus for adhesive production as described in claim 5, characterized in that, The drive mechanism includes an outer gear ring (15), the lower end of the inner bushing (5) passes through the tank body (1), the outer gear ring (15) is fixedly connected to the lower end of the inner bushing (5), a servo motor (16) is fixedly installed on the support plate (11), and a drive wheel (17) is fixedly installed on the output shaft end of the servo motor (16), and the drive wheel (17) meshes with the outer gear ring (15).

7. The mixing apparatus for adhesive production as described in claim 1, characterized in that, The inner wall of the tank (1) is provided with multiple heating wires.

8. The mixing apparatus for adhesive production as described in claim 1, characterized in that, The tank (1) has a material level scale line on its outer side.

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