Spraying device for PU foaming wheel

Abstract

The utility model provides a spraying device for a PU foaming wheel, and relates to the field of foaming wheel production, a guide shaft assembly is fixedly connected to the bottom end face of a transverse member in an installation support, the guide shaft assembly is longitudinally arranged, and mixing assemblies are fixedly connected to the outer side of the guide shaft assembly in an annular array mode. The problems that in the spraying mode, spraying operation in the fixed direction is mostly carried out towards one side of a mold, but when the spraying mode is used, spraying is carried out in the fixed direction for a long time, and a spraying structure is prone to being blocked due to accumulation of sprayed foaming materials are solved. According to the spraying structure, the injection holes of the injection pipe can be used for spraying a mold at multiple angles, so that foaming materials cannot be accumulated at a certain position in a concentrated manner, the risk that the spraying structure is blocked due to material accumulation is effectively reduced, the continuity and the stability of spraying operation are greatly improved, and the time and the cost for cleaning and maintaining equipment due to blockage are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of foam wheel production, and specifically relates to a spraying device for PU foam wheels. Background Technology

[0002] Currently, PU wheels, also known as polyurethane wheels, are tires made of polyurethane material. Polyurethane is a polymer material with properties such as high elasticity, wear resistance, tear resistance, and impact resistance. PU wheels are typically made from polyurethane cast elastomer raw materials. Depending on the raw materials used, they vary in terms of yellowing resistance, wear resistance, transparency, and hardness. During manufacturing, appropriate spraying equipment is required to spray the foamed material.

[0003] However, when existing spraying equipment is used, it sprays in a fixed direction towards one side of the mold during injection spraying. However, when this spraying method is used, spraying in a fixed direction for a long time can easily cause the sprayed structure to become clogged due to the accumulation of sprayed foam material.

[0004] Therefore, in view of the shortcomings of the above-mentioned solutions in actual production and implementation, modifications and improvements have been made. At the same time, in the spirit and concept of seeking the best, with the assistance of professional knowledge and experience, and after a lot of ingenuity and experimentation, this utility model was created. It provides a PU foaming wheel spraying device to solve the problem that the existing spraying methods, when performing injection spraying operations, mostly spray in a fixed direction towards one side of the mold. However, when using this spraying method, the spraying structure is easily blocked due to the accumulation of sprayed foaming material during long-term fixed-direction spraying. Utility Model Content

[0005] This utility model proposes a spraying device for PU foaming wheels, which solves the problem in the prior art that, when performing injection spraying operations, the spraying operation is mostly carried out in a fixed direction towards one side of the mold. However, when this spraying method is used, the spraying structure is easily blocked due to the accumulation of sprayed foaming material during long-term fixed-direction spraying.

[0006] The technical solution of this utility model is implemented as follows: a spraying device for PU foaming wheels includes a support mechanism, the main body of which is a rectangular plate structure, and a lifting push rod is fixedly connected to the top surface of the support mechanism.

[0007] A top plate mechanism is installed on the top output end of the lifting push rod. A mounting bracket is fixedly connected to the top of the top plate mechanism. The main body of the mounting bracket is a U-shaped structure with a one-way opening at the bottom. A guide shaft assembly is fixedly connected to the bottom surface of the transverse component in the mounting bracket. The guide shaft assembly is arranged longitudinally, and a hybrid assembly is fixedly connected in a ring array on the outer side of the guide shaft assembly. The hybrid assembly and the guide shaft assembly together form a hybrid structure.

[0008] In a preferred embodiment, a bracket assembly is fixedly connected to the bottom surface of the support mechanism. The main body of the bracket assembly is a hollow structure, and the bracket assembly and the support mechanism together form a support structure.

[0009] In one preferred embodiment, there are four lifting push rods, which are fixedly connected to the four corners of the top surface of the support mechanism.

[0010] In a preferred embodiment, a support assembly is fixedly connected to the bottom surface of the top plate mechanism. The main body of the support assembly is an L-shaped structure, and a servo motor is installed at the bottom of the horizontal component in the support assembly.

[0011] In a preferred embodiment, the servo motor has an output shaft at its top, on which a drive gear is mounted. The servo motor and the drive gear together form a power output structure.

[0012] In a preferred embodiment, a mixing tank is rotatably connected inside the top plate mechanism. The main body of the mixing tank is a bidirectional through structure on both the upper and lower sides. A guide ring assembly is fixedly connected to the outside of the mixing tank. The diameter of the guide ring assembly is larger than the diameter of the mixing tank. The mixing tank and the guide ring assembly together form a rotation adjustment structure. A guide gear assembly that meshes with the drive gear is fixedly connected to the outer circumferential surface of the mixing tank. An injection pipe is fixedly connected to the bottom end of the mixing tank. Injection holes are arranged in a ring array on the outer circumferential surface of the injection pipe.

[0013] After using the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this utility model, by rotating the mixing tank, the injection hole of the injection pipe can spray the mold at multiple angles. In this way, the foaming material will not accumulate in one place, effectively reducing the risk of the sprayed structure being blocked due to material accumulation. This greatly improves the continuity and stability of the spraying operation and reduces the time and cost of cleaning and maintaining the equipment due to blockage.

[0015] 2. In this utility model, the mixing structure composed of the mixing component and the guide shaft component can fully mix the foaming material. At the same time, the rotation of the mixing tank makes the material sprayed from the injection hole more evenly cover the mold surface, avoiding product quality problems caused by uneven material mixing or uneven spraying, improving the production quality of PU foaming wheels, and making the produced foaming wheels more stable and reliable in performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front side view of a portion of the spraying device of this utility model after sectional cutting.

[0018] Figure 2 This is a front view schematic diagram of the spraying device of this utility model;

[0019] Figure 3 This is a left-side structural schematic diagram of the spraying device of this utility model;

[0020] Figure 4 This is a schematic diagram of the combined structure of the support mechanism and bracket assembly of the spraying device of this utility model;

[0021] Figure 5 This is a schematic diagram of the combined structure of the top plate mechanism and the support assembly of the spraying device of this utility model;

[0022] Figure 6 This is a schematic diagram of the combined structure of the mixing tank and guide ring assembly of the spraying device of this utility model;

[0023] In the diagram, 1 is the support mechanism; 101 is the bracket assembly; 1011 is the lifting push rod; 2 is the top plate mechanism; 201 is the mounting bracket; 2011 is the guide shaft assembly; 2012 is the mixing assembly; 202 is the bracket assembly; 2021 is the servo motor; 2022 is the drive gear; 3 is the mixing tank; 301 is the guide ring assembly; 3011 is the guide gear assembly; 3012 is the injection pipe; and 3013 is the injection hole. 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.

[0025] like Figures 1-6 As shown, a spraying device for PU foaming wheels includes: a support mechanism 1, the main body of the support mechanism 1 is a rectangular plate structure, and a lifting push rod 1011 is fixedly connected to the top surface of the support mechanism 1;

[0026] A top plate mechanism 2 is installed on the top output end of the lifting push rod 1011. A mounting bracket 201 is fixedly connected to the top of the top plate mechanism 2. The main body of the mounting bracket 201 is a U-shaped structure with a one-way opening at the bottom. A guide shaft assembly 2011 is fixedly connected to the bottom surface of the transverse component in the mounting bracket 201. The guide shaft assembly 2011 is arranged longitudinally. A mixing assembly 2012 is fixedly connected to the outer side of the guide shaft assembly 2011 in a ring array. The mixing assembly 2012 and the guide shaft assembly 2011 together form a mixing structure. The diameter of the guide ring assembly 301 is larger than the diameter of the mixing tank 3. The mixing tank 3 and the guide ring assembly 301 together form a rotation adjustment structure. A guide gear assembly 3011 that meshes with the drive gear 2022 is fixedly connected to the outer circumferential surface of the mixing tank 3. An injection pipe 3012 is fixedly connected to the bottom end of the mixing tank 3. Injection holes 3013 are opened in a ring array on the outer circumferential surface of the injection pipe 3012.

[0027] Among them, a bracket assembly 101 is fixedly connected to the bottom surface of the support mechanism 1. The main body of the bracket assembly 101 is a hollow structure. The bracket assembly 101 and the support mechanism 1 together form a support structure. There are four lifting push rods 1011. The four lifting push rods 1011 are fixedly connected to the four corners of the top surface of the support mechanism 1.

[0028] Among them, a support assembly 202 is fixedly connected to the bottom surface of the top plate mechanism 2. The main body of the support assembly 202 is an L-shaped structure. A servo motor 2021 is installed at the bottom of the horizontal component in the support assembly 202. An output shaft is provided at the top of the servo motor 2021. A drive gear 2022 is installed on the output shaft. The servo motor 2021 and the drive gear 2022 together form a power output structure. A mixing tank 3 is rotatably connected inside the top plate mechanism 2. The main body of the mixing tank 3 is a bidirectional through structure on both the upper and lower sides. A guide ring assembly 301 is fixedly connected to the outside of the mixing tank 3.

[0029] In use, the support mechanism 1 serves as the foundation of the entire device. The bracket assembly 101 at its bottom end, together with the support mechanism 1, forms a support structure for stabilizing the device. The four lifting push rods 1011 at the four corners of the top surface of the support mechanism 1 can extend and retract according to actual needs, thereby adjusting the height of the top plate mechanism 2 to meet the requirements of different mold heights for the spraying position.

[0030] The bracket assembly 202, which is fixedly connected to the bottom surface of the top plate mechanism 2, starts to work. The servo motor 2021 installed at the bottom of its horizontal component starts to work. The drive gear 2022 installed on the top output shaft of the servo motor 2021 rotates accordingly. The drive gear 2022 meshes with the guide gear assembly 3011 on the outer peripheral surface of the mixing tank 3. Driven by the drive gear 2022, the mixing tank 3 starts to rotate. The mixing tank 3 and the outer guide ring assembly 301 together form a rotation adjustment structure. The guide ring assembly 301 plays the role of assisting support and stabilizing the rotation of the mixing tank 3.

[0031] The guide shaft assembly 2011, which is fixedly connected to the bottom surface of the transverse component in the mounting bracket 201, is arranged longitudinally. The mixing assembly 2012, which is fixedly connected in a ring array on its outer side, together with the guide shaft assembly 2011, forms a mixing structure. The foaming material enters the mixing assembly 2012 through a specific feeding channel and is fully mixed in the mixing assembly 2012. The mixed material enters the mixing tank 3, which is bidirectionally connected to the upper and lower sides. As the mixing tank 3 rotates, the material is more evenly distributed in the mixing tank 3 under the action of centrifugal force and other forces. Subsequently, the material is sprayed out from the injection holes 3013, which are opened in a ring array on the outer circumference of the injection pipe 3012, through the injection pipe 3012 fixedly connected to the bottom of the mixing tank 3, thereby realizing multi-angle spraying of the mold.

[0032] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A spraying device for PU foaming wheels, comprising a support mechanism (1), wherein the main body of the support mechanism (1) is a rectangular plate structure, characterized in that, A lifting push rod (1011) is fixedly connected to the top surface of the support mechanism (1). A top plate mechanism (2) is installed on the top output end of the lifting push rod (1011). A mounting bracket (201) is fixedly connected to the top of the top plate mechanism (2). The main body of the mounting bracket (201) is a U-shaped structure with a one-way opening at the bottom. A guide shaft assembly (2011) is fixedly connected to the bottom surface of the transverse component in the mounting bracket (201). The guide shaft assembly (2011) is arranged longitudinally. A hybrid assembly (2012) is fixedly connected to the outer side of the guide shaft assembly (2011) in a ring array. The hybrid assembly (2012) and the guide shaft assembly (2011) together form a hybrid structure.

2. The spraying device for a PU foaming wheel according to claim 1, characterized in that, A bracket assembly (101) is fixedly connected to the bottom surface of the support mechanism (1). The main body of the bracket assembly (101) is a hollow structure. The bracket assembly (101) and the support mechanism (1) together form a support structure.

3. The spraying device for a PU foaming wheel according to claim 1, characterized in that, There are four lifting push rods (1011), which are fixedly connected to the four corners of the top surface of the support mechanism (1).

4. The spraying device for a PU foaming wheel according to claim 1, characterized in that, The top plate mechanism (2) is fixedly connected to a support assembly (202). The main body of the support assembly (202) is an L-shaped structure. A servo motor (2021) is installed at the bottom of the horizontal component in the support assembly (202).

5. The spraying device for a PU foaming wheel according to claim 4, characterized in that, The servo motor (2021) has an output shaft at its top, on which a drive gear (2022) is mounted. The servo motor (2021) and the drive gear (2022) together form a power output structure.

6. The spraying device for a PU foaming wheel according to claim 1, characterized in that, The top plate mechanism (2) is internally rotatably connected to a mixing tank (3). The main body of the mixing tank (3) is a bidirectional through structure on both the upper and lower sides. A guide ring assembly (301) is fixedly connected to the outside of the mixing tank (3).

7. The spraying device for a PU foaming wheel according to claim 6, characterized in that, The diameter of the guide ring assembly (301) is larger than the diameter of the mixing tank (3). The mixing tank (3) and the guide ring assembly (301) together form a rotation adjustment structure. A guide gear assembly (3011) that meshes with the drive gear (2022) is fixedly connected to the outer circumferential surface of the mixing tank (3). An injection pipe (3012) is fixedly connected to the bottom end of the mixing tank (3). Injection holes (3013) are arranged in a ring array on the outer circumferential surface of the injection pipe (3012).

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