Raw material mixing and debugging device for PVC skin processing

By combining a sweeping plate and an airflow structure, the problem of uneven mixing of raw materials in PVC skin processing is solved, achieving uniform mixing of raw materials and improving molding quality.

CN224334756UActive Publication Date: 2026-06-09NANJING HAISHENG PLASTIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING HAISHENG PLASTIC TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In current PVC skin processing, the powdered raw materials are mixed unevenly due to differences in specific gravity, which easily leads to stratification and affects the molding quality.

Method used

The material adopts a combination structure of sweeping plate and airflow. The sweeping plate sweeps the raw material to a high position, and the impact force of the airflow makes the powdered raw material flow upward in a dispersed manner, so as to achieve full mixing of the raw material.

Benefits of technology

This effectively avoids the separation of raw materials, ensures the uniformity of mixing, and improves the quality of the PVC skin after molding.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224334756U_ABST
    Figure CN224334756U_ABST
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Abstract

The utility model provides a kind of raw material mixing debugging device of PVC skin processing belongs to skin processing mixing technology field, including raw material mixing cover;Mixing assembly is located in the inside of the raw material mixing cover;Blowing material component is located in the inside of the mixing assembly;Wherein, the mixing assembly includes: be located in the outside circle cover in the raw material mixing cover;Sweeping material plate is welded in the outside wall of the outside circle cover;And the through-hole being arranged in the outside wall of the outside circle cover near sweeping material plate one side position;Round cover one is located in the one side end of the outside circle cover;And round cover two is located in the other side end of the outside circle cover;The utility model is by sweeping material plate and is mixed into raw material cover inside bottom raw material to the above of airflow, utilize the impact force of airflow to make the raw material of powder be divergent and flow upwards, realize mixing by the falling, impact between the raw material of powder, effectively avoid the phenomenon of layering caused by different raw material specific gravity.
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Description

Technical Field

[0001] This utility model belongs to the field of material mixing technology for PVC skin processing, specifically relating to a raw material mixing and debugging device for PVC skin processing. Background Technology

[0002] Automotive interior trim refers to the various leather materials used in the interior decoration of automobiles. These materials not only affect the aesthetics and comfort of the car, but also involve requirements for safety and environmental protection.

[0003] The PVC skin processing requires mixing various raw materials. Most existing mixtures are in powder form. Powdered mixtures are used for calendering or extrusion molding. Due to the different specific gravities of the various powdered raw materials, traditional mixing paddles are prone to material stratification during mixing, which reduces the uniformity of the mixture and the quality of the PVC skin after molding.

[0004] Therefore, a raw material mixing and debugging device for PVC skin processing is proposed. Summary of the Invention

[0005] This invention provides a raw material mixing and adjustment device for PVC skin processing, the purpose of which is to solve the problems mentioned above.

[0006] This utility model embodiment provides a raw material mixing and adjustment device for PVC skin processing, including a raw material mixing hood; a mixing assembly disposed inside the raw material mixing hood; and a blowing assembly disposed inside the mixing assembly. The mixing assembly includes: an outer sleeve disposed in the raw material mixing hood; a sweeping plate welded to the outer wall of the outer sleeve; and a through hole opened on the outer wall of the outer sleeve near the sweeping plate; a first round cover disposed on one side of the outer sleeve; and a second round cover disposed on the other side of the outer sleeve; and a hollow tube disposed at the center of the outer wall of the second round cover. The blowing assembly includes: an inner sleeve disposed in the outer sleeve; an exhaust pipe disposed at the center of the inner sleeve; a support rod disposed between the outer wall of the exhaust pipe and the inner wall of the inner sleeve; an air outlet opened at the top of the inner sleeve; and a connecting pipe disposed between the exhaust pipe and the air outlet.

[0007] Furthermore, a cover is provided on one side of the outer wall of the raw material mixing hood, and a cover is provided on the other side of the outer wall of the raw material mixing hood. A motor is provided on the outer wall of the cover away from the raw material mixing hood, and the output end of the motor is fixedly connected to the center of one side of the outer wall of the cover.

[0008] Furthermore, a circulating air pump is provided on the outer wall of the cover two away from the raw material mixing cover. An air inlet pipe is provided between the input end of the circulating air pump and the outer wall of the cover two, and the output end of the circulating air pump is fixedly connected to the exhaust pipe.

[0009] Furthermore, the top of the raw material mixing hood is provided with a feeding valve, and the inner sidewall of the raw material mixing hood is provided with an arc portion and an inclined portion. The arc portion is located below the inclined portion, and the bottom of the arc portion is hinged with a feeding platform. The bottom of the raw material mixing hood is symmetrically provided with four fixed legs.

[0010] Furthermore, a total of twenty sweeping plates are provided, with two sweeping plates forming a group. Ten groups of sweeping plates are axially spaced at equal intervals on the outer side wall of the outer sleeve, and the through hole is located between the two sweeping plates in each group.

[0011] By adopting the above technical solution, the material sweeping structure composed of two sweeping plates can sweep the powdery raw materials at the bottom of the raw material mixing hood to a higher position through its axial circumferential motion, which facilitates the subsequent blowing and mixing of the raw materials.

[0012] Furthermore, the inner wall of the unloading platform is an arc surface, and the outer wall of the sweeping plate fits into the arc portion and the inner wall of the unloading platform.

[0013] By adopting the above technical solution, it is ensured that the sweeping plate fully sweeps the raw material upward during the circumferential motion, avoiding any omissions.

[0014] Furthermore, the hollow tube and the second cover are rotatably connected, the exhaust pipe passes through the hollow tube, and the cross-section of the exhaust pipe is L-shaped.

[0015] By adopting the above technical solution, the support characteristics of the exhaust pipe can be used to ensure the stability of the inner sleeve and allow air to enter the outer sleeve.

[0016] Furthermore, both the exhaust pipe and the air outlet are connected to the connecting pipe;

[0017] By adopting the above technical solution, air is ensured to flow and circulate, so that the air passes through the exhaust pipe, connecting pipe and air outlet in sequence and is discharged, so that the air is blown vertically upward. The airflow is used to blow the powdered raw materials upward, which facilitates the mixing of the raw materials during the falling process.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention uses a sweeping plate to sweep the raw materials at the bottom of the mixing chamber to the top of the airflow. The impact force of the airflow causes the powdered raw materials to flow upward in a divergent manner. The powdered raw materials are mixed by falling and colliding with each other, effectively avoiding the phenomenon of stratification caused by different specific gravities of the raw materials. By utilizing the light weight of the powdered raw materials and the flow capacity of the airflow, the raw materials are mixed by the airflow, ensuring uniform mixing and improving the quality of the PVC skin after molding.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is an exploded view of an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram showing the assembly of the mixing component and the blowing component in accordance with an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the mixing component structure according to an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the blowing assembly structure according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the raw material mixing hood structure according to an embodiment of the present utility model;

[0028] Reference numerals in the attached drawings: 1. Raw material mixing hood; 2. Cover one; 3. Cover two; 4. Motor; 5. Mixing assembly; 51. Round cover one; 52. Outer round sleeve; 53. Round cover two; 54. Sweeping plate; 55. Through hole; 56. Hollow tube; 6. Blowing assembly; 61. Inner round sleeve; 62. Exhaust pipe; 63. Support rod; 64. Air outlet; 65. Connecting pipe; 7. Circulating air pump; 8. Air inlet pipe; 9. Feed valve; 10. Arc part; 11. Discharge platform; 12. Inclined part; 13. Fixed leg. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Reference Figure 1-6 This utility model embodiment proposes a raw material mixing and adjustment device for PVC skin processing, including a raw material mixing cover 1. A cover 2 is bolted to one outer wall of the raw material mixing cover 1, and a cover 3 is bolted to the other outer wall of the raw material mixing cover 1. A motor 4 is bolted to one outer wall of the cover 2. The motor 4 is fixedly connected to a circular cover 51 in the mixing assembly 5 through its output end. An outer circular sleeve 52 is provided on one outer wall of the circular cover 51. A circular cover 53 is provided on the outer wall of the outer circular sleeve 52 away from the circular cover 51. The outer circular sleeve 52 is adjacent to the circular cover 53. A sweeping plate 54 is provided on the outer wall. There are twenty sweeping plates 54 in total. Two sweeping plates 54 form a group. Ten groups of sweeping plates 54 are axially and equally spaced on the outer wall of the outer sleeve 52. The through hole 55 is located between the two sweeping plates 54 in each group. Through the sweeping structure formed by two sweeping plates 54, the powdery raw material at the bottom of the raw material mixing cover 1 can be swept to a higher position by its axial circumferential motion, which is convenient for the raw material to be blown and mixed in the subsequent process. The outer wall of the outer sleeve 52 is provided with a through hole 55 on the side close to the sweeping plate 54. A hollow tube 56 is provided on the outer wall of the second cover 53 at the center position on the side away from the outer sleeve 52.

[0031] An inner sleeve 61 from the blowing assembly 6 is fitted onto the inner wall of the outer sleeve 52. An exhaust pipe 62 is located at the center of the inner sleeve 61. The hollow tube 56 and the cover 3 are rotatably connected to ensure the stability of the mixing assembly 5 within the raw material mixing hood 1. The exhaust pipe 62 passes through the hollow tube 56 and has an L-shaped cross-section. The L-shaped exhaust pipe 62 provides support and stability to the inner sleeve 61, allowing air to enter the outer sleeve 52. A support rod 63 is located between the outer wall of the exhaust pipe 62 and the inner wall of the inner sleeve 61. An air outlet 64 is located at the top of the inner sleeve 61. A connecting pipe 65 is provided between the outer walls of the pipe 62. The exhaust pipe 62 and the air outlet 64 are both connected to the connecting pipe 65 to ensure air flow. The air passes through the exhaust pipe 62, the connecting pipe 65 and the air outlet 64 in sequence and is discharged vertically upward. The airflow blows the powdered raw material upward, which facilitates the mixing of the raw material during the falling process. A circulating air pump 7 is fixedly connected to the outer wall of the cover 2 3 away from the raw material mixing cover 1 by bolts. An air inlet pipe 8 is provided between the input end of the circulating air pump 7 and the outer wall of the cover 2 3. A filter screen is provided on the outer wall of the cover 2 3 near the end of the air inlet pipe 8 to prevent the powdered raw material from entering the circulating air pump 7 and to ensure air circulation.

[0032] The top of the raw material mixing hood 1 is fixedly connected to the feed valve 9 by bolts. The inner side wall of the raw material mixing hood 1 is provided with an arc part 10 and an inclined part 12. The arc part 10 is located below the inclined part 12. The bottom of the arc part 10 is hinged to the discharge platform 11. The inner side wall of the discharge platform 11 is an arc surface. The outer side wall of the sweeping plate 54 is attached to the arc part 10 and the inner side wall of the discharge platform 11 to ensure that the sweeping plate 54 fully sweeps the raw material upward during the circumferential movement to avoid omission. The discharge platform 11 and the arc part 10 are locked together. The bottom of the raw material mixing hood 1 is symmetrically provided with four fixed legs 13.

[0033] The specific implementation method is as follows: When mixing the raw materials required for PVC skin processing, the feed valve 9 is opened and various raw materials are poured into the raw material mixing hood 1. The control motor 4 drives the first round cover 51 to rotate through its output end on one side. The outer round sleeve 52 and the second round cover 53 rotate synchronously. The sweeping plate 54 on the outer wall of the outer round sleeve 52 moves axially in a circular motion. The sweeping plate 54 sweeps the raw materials at the bottom of the raw material mixing hood 1 from bottom to top. The circulating air pump 7 works to make the air in the raw material mixing hood 1 circulate. The air passes through the exhaust pipe 62 and the connecting pipe 65 in sequence and is discharged from the air outlet 64. When the through hole 55 on the outer round sleeve 52 rotates to the vertical direction of the air outlet 64, the air outlet 64 and the through hole 55 coincide, and the air is sprayed vertically upward. The airflow blows the raw materials upward, and the raw materials move upward in a divergent manner. The raw materials fall and collide inside the raw material mixing hood 1 to achieve full mixing of the raw materials.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A raw material mixing and adjustment device for PVC skin processing, characterized in that: Including the raw material mixing hood (1); A mixing assembly (5) is located inside the raw material mixing hood (1); A blowing assembly (6) is located inside the mixing assembly (5); The mixing component (5) includes: An outer sleeve (52) is provided in the raw material mixing hood (1); The cleaning plate (54) welded to the outer wall of the outer sleeve (52); and A through hole (55) is opened on the outer side wall of the outer sleeve (52) near the sweeping plate (54); A circular cap (51) is provided on one side of the outer sleeve (52); and A second round cover (53) is provided on the other side of the outer round sleeve (52); A hollow tube (56) is located at the center of the outer wall on one side of the round cover (53); The blowing assembly (6) includes: An inner sleeve (61) is provided in the outer sleeve (52); An exhaust pipe (62) is located at the center of the inner sleeve (61). A support rod (63) is provided between the outer wall of the exhaust pipe (62) and the inner wall of the inner sleeve (61). An air outlet (64) is opened at the top of the inner sleeve (61). A connecting pipe (65) is provided between the exhaust pipe (62) and the air outlet (64).

2. The raw material mixing and adjustment device for PVC skin processing according to claim 1, characterized in that: A cover one (2) is provided on one side of the outer wall of the raw material mixing cover (1), and a cover two (3) is provided on the other side of the outer wall of the raw material mixing cover (1). A motor (4) is provided on the outer wall of the cover one (2) away from the raw material mixing cover (1). The output end of the motor (4) is fixedly connected to the center of the outer wall of the round cover one (51).

3. The raw material mixing and adjustment device for PVC skin processing according to claim 2, characterized in that: A circulating air pump (7) is provided on the outer wall of the cover two (3) away from the raw material mixing cover (1). An air inlet pipe (8) is provided between the input end of the circulating air pump (7) and the outer wall of the cover two (3), and the output end of the circulating air pump (7) and the exhaust pipe (62) are fixedly connected.

4. The raw material mixing and adjustment device for PVC skin processing according to claim 1, characterized in that: The top of the raw material mixing hood (1) is provided with a feed valve (9), and the inner side wall of the raw material mixing hood (1) is provided with an arc part (10) and an inclined part (12). The arc part (10) is located below the inclined part (12), and the bottom of the arc part (10) is hinged with a feeding platform (11). The bottom of the raw material mixing hood (1) is symmetrically provided with four fixed legs (13).

5. The raw material mixing and adjustment device for PVC skin processing according to claim 1, characterized in that: There are twenty sweeping plates (54) in total. Each pair of sweeping plates (54) forms a group. Ten groups of sweeping plates (54) are axially spaced at equal intervals on the outer side wall of the outer sleeve (52). The through hole (55) is located between the two sweeping plates (54) in each group.

6. The raw material mixing and adjustment device for PVC skin processing according to claim 4, characterized in that: The inner wall of the unloading platform (11) is an arc surface, and the outer wall of the sweeping plate (54) fits the arc part (10) and the inner wall of the unloading platform (11).

7. The raw material mixing and adjustment device for PVC skin processing according to claim 1, characterized in that: The hollow tube (56) and the cover (3) are rotatably connected, and the exhaust pipe (62) passes through the hollow tube (56), and the cross-section of the exhaust pipe (62) is L-shaped.

8. The raw material mixing and adjustment device for PVC skin processing according to claim 1, characterized in that: The exhaust pipe (62) and the air outlet (64) are both connected to the connecting pipe (65).