Pretreatment device for pultrusion of polyurethane composite material

Abstract

The utility model discloses a pretreatment device for pultrusion of a polyurethane composite material, relates to the technical field of pretreatment devices, and aims to solve the technical problems that in the prior art, the polyurethane composite material has certain viscosity after being mixed and pretreated, and part of raw materials can be adhered to the inner wall of a tank body when being output; the output after the polyurethane composite material is mixed is influenced, and the practicability is poor. A tank cover is fixedly installed on the upper portion of the tank body through screws, a mixing cavity is formed in the tank body, a scraper is arranged in the mixing cavity and is an annular plate, the outer side face of the scraper is attached to the inner wall of the tank body, transmission columns are symmetrically and fixedly installed on the two sides of the upper portion of the scraper respectively, and the transmission columns are fixedly installed on the upper portion of the tank body. The upper end of the transmission column extends to the position above the tank cover, driving boxes are symmetrically and fixedly installed on the two sides of the tank body correspondingly, box cavities are formed in the driving boxes, lifting battens are arranged above the driving boxes, and the lower ends of the lifting battens are inserted into the box cavities.

Description

Technical Field

[0001] The utility model relates to the technical field of pretreatment devices, in particular to a pretreatment device for pultrusion molding of polyurethane composite materials. Background Art

[0002] Polyurethane is the full name of polyurethane, which is a polymer compound. Polyurethane is divided into two categories: polyester type and polyether type. They can be made into polyurethane plastics, polyurethane fibers, polyurethane rubbers and elastomers. Soft polyurethane is mainly a thermoplastic linear structure. In the production and processing of polyurethane composite materials, the raw materials need to be stirred and mixed in the reaction tank before pretreatment.

[0003] For example, the authorized patent with announcement number CN216423517U (a two-component polyurethane resin composite material pultrusion molding pretreatment device): includes a heating tank, the heating tank also includes a support frame, the support frame is fixed to the outer side wall of the heating tank, the inner side wall of the bottom end of the heating tank is provided with a groove, the inside of the groove is rotatably connected with a matching hollow shaft, the other end of the hollow shaft is fixed with a processing tank, the hollow shaft is connected to the inside of the processing tank, the outer side wall of the heating tank is fixed with a feed pipe, one end of the feed pipe is located inside the processing tank;

[0004] Although the above-mentioned prior art is convenient to use the heating effect of the heating tank itself to heat the processing tank so that the injected composite materials are mixed evenly, the polyurethane composite materials have a certain viscosity after pre-treatment. When outputting, part of the raw materials will adhere to the inner wall of the tank, affecting the output of the mixed polyurethane composite materials, and the practicality is poor. Therefore, the market urgently needs to develop a pre-treatment device for pultrusion molding of polyurethane composite materials to help people solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pretreatment device for pultrusion molding of polyurethane composite materials, so as to solve the problem proposed in the above-mentioned background technology that the polyurethane composite materials have a certain viscosity after mixed pretreatment, and part of the raw materials will adhere to the inner wall of the tank during output, which affects the output of the mixed polyurethane composite materials and has poor practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pretreatment device for pultrusion molding of polyurethane composite materials, comprising a tank body, a tank cover is fixedly installed on the top of the tank body by screws, a mixing chamber is arranged inside the tank body, a scraper is arranged inside the mixing chamber, the scraper is arranged as an annular plate, the outer side surface of the scraper is in contact with the inner wall of the tank body, and transmission columns are symmetrically fixedly installed on both sides above the scraper, and the upper end of the transmission column extends to the top of the tank cover.

[0007] Preferably, a driving box is symmetrically fixedly installed on both sides of the tank body, a box cavity is provided inside the driving box, a lifting strip is provided above the driving box, and the lower end of the lifting strip is inserted into the box cavity, a connecting top plate is fixedly installed above the lifting strip, and the connecting top plate is fixedly connected to the transmission column by screws.

[0008] Preferably, a threaded rod is rotatably installed inside the driving box, a threaded cavity is provided inside the lifting strip, the upper end of the threaded rod extends into the threaded cavity, and the threaded rod is threadedly connected to the lifting strip.

[0009] Preferably, a central shaft is rotatably installed in the middle below the tank cover, a stirring plate is arranged on the outside of the central shaft, connecting strips are symmetrically fixedly installed above and below the stirring plate, and the connecting strips are fixedly connected to the central shaft.

[0010] Preferably, a motor is fixedly installed in the middle above the tank cover, and the output end of the motor is fixedly connected to the central shaft.

[0011] Preferably, a preheating chamber is provided inside the tank body along the outer side of the mixing chamber, and an electric heating tube is provided inside the preheating chamber.

[0012] Preferably, a feed pipe is fixedly installed above the tank cover, an operation panel is fixedly installed at the front end of the tank body, a support column is fixedly installed below the tank body, and three support columns are provided, and a discharge valve is fixedly installed in the middle below the tank body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model arranges an annular scraper inside the mixing chamber of the tank body, and the outer side surface of the scraper fits against the inner wall of the tank body, so that after the mixed pretreatment of the polyurethane composite material production, the scraper is driven downward by driving the transmission column to scrape off the raw materials adhering to the inner wall of the tank body, which is beneficial to the stable output of the polyurethane composite material after the mixed pretreatment. In addition, by arranging two symmetrical transmission columns to drive the scraper to move, not only can a downward force be applied to the scraper from two positions, but the movement of the scraper can also be guided, thereby increasing the linear stability of the scraper movement.

[0015] 2. The utility model provides a central axis, a stirring plate and connecting strips, so that during the pretreatment of the polyurethane composite material, different raw materials can be added into the tank body, the central axis is driven to rotate, and the stirring plate can be driven to rotate under the drive of the connecting strips to stir the different raw materials, which is beneficial to the mixed pretreatment of the polyurethane composite material and increases practicality.

[0016] 3. The utility model arranges an electric heating tube inside the preheating chamber of the tank body, so that during the pretreatment process of the polyurethane composite material, the inside of the tank body can be heated by energizing the electric heating tube, which is beneficial to the subsequent pultrusion molding of the polyurethane composite material and increases practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a pretreatment device for pultrusion molding of a polyurethane composite material according to the utility model;

[0018] Figure 2 It is a cross-sectional view of a pretreatment device for pultrusion molding of a polyurethane composite material according to the utility model;

[0019] Figure 3 It is a structural schematic diagram of the scraper of the utility model;

[0020] Figure 4 It is an enlarged schematic diagram of the A part of the utility model.

[0021] In the figure: 1. tank body; 101. mixing chamber; 102. preheating chamber; 2. tank cover; 3. operation panel; 4. support column; 5. discharge valve; 6. motor; 7. feed pipe; 8. drive box; 801. box chamber; 9. lifting strip; 901. threaded chamber; 10. connecting top plate; 11. transmission column; 12. central axis; 13. stirring plate; 14. connecting strip; 15. threaded rod; 16. scraper; 17. electric heating tube. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a pretreatment device for pultrusion molding of a polyurethane composite material, comprising a tank body 1, a tank cover 2 is fixedly installed on the top of the tank body 1 by screws, a mixing chamber 101 is arranged inside the tank body 1, a scraper 16 is arranged inside the mixing chamber 101, the scraper 16 is arranged as an annular plate, the outer side surface of the scraper 16 is in contact with the inner wall of the tank body 1, and transmission columns 11 are symmetrically fixedly installed on both sides above the scraper 16, and the upper end of the transmission column 11 extends to the top of the tank cover 2.

[0024] When in use, after the mixed pretreatment of the polyurethane composite material production, the scraper 16 is driven downward by driving the transmission column 11 to scrape off the raw materials adhering to the inner wall of the tank body 1, which is beneficial to the stable output of the polyurethane composite material after the mixed pretreatment. In addition, by setting two symmetrical transmission columns 11 to drive the scraper to move, not only can a downward force be applied to the scraper 16 from two positions, but the movement of the scraper 16 can also be guided, thereby increasing the linear stability of the scraper movement.

[0025] Furthermore, a driving box 8 is symmetrically fixedly installed on both sides of the tank body 1, a box cavity 801 is arranged inside the driving box 8, a lifting strip 9 is arranged above the driving box 8, and the lower end of the lifting strip 9 is inserted into the box cavity 801, and a connecting top plate 10 is fixedly installed above the lifting strip 9, and the connecting top plate 10 is fixedly connected to the transmission column 11 by screws. By arranging the driving structure of the transmission column 11 outside the tank body 1, later inspection and maintenance are facilitated, thereby increasing practicality.

[0026] Furthermore, a threaded rod 15 is rotatably installed inside the driving box 8, a driving motor of the threaded rod 15 is arranged below the driving box 8, a threaded cavity 901 is arranged inside the lifting strip 9, the upper end of the threaded rod 15 extends into the interior of the threaded cavity 901, and the threaded rod 15 is threadedly connected to the lifting strip 9, the threaded cavity 901 is adapted to the threaded rod 15, so that the lifting strip 9 can be driven to move up and down when the threaded rod 15 rotates.

[0027] Furthermore, a central shaft 12 is rotatably installed in the middle below the tank cover 2, a stirring plate 13 is provided on the outside of the central shaft 12, connecting strips 14 are symmetrically fixedly installed above and below the stirring plate 13, and the connecting strips 14 are fixedly connected to the central shaft 12, so that by driving the central shaft 12 to rotate, the stirring plate 13 can be driven to rotate under the drive of the connecting strips 14 to stir different raw materials, which is beneficial to the mixing pretreatment of polyurethane composite materials.

[0028] Furthermore, a motor 6 is fixedly installed in the middle above the tank cover 2, and the output end of the motor 6 is fixedly connected to the central shaft 12. The motor 6 is a servo motor, which is conducive to adjusting the stirring speed.

[0029] Furthermore, a preheating chamber 102 is provided inside the tank body 1 along the outer side of the mixing chamber 101 , and an electric heating pipe 17 is provided inside the preheating chamber 102 , which can heat the inside of the tank body 1 , which is beneficial to the subsequent pultrusion molding of the polyurethane composite material.

[0030] Furthermore, a feed pipe 7 is fixedly installed above the tank cover 2 to facilitate adding raw materials into the tank body 1, an operation panel 3 is fixedly installed at the front end of the tank body 1, a support column 4 is fixedly installed below the tank body 1, and three support columns 4 are provided, and a discharge valve 5 is fixedly installed in the middle below the tank body 1 to facilitate the output of the mixed raw materials after pretreatment in the production of polyurethane composite materials.

[0031] Working principle: When in use, during the pretreatment of polyurethane composite material production, different raw materials are added into the mixing chamber 101 of the tank body 1 through the feed pipe 7, the motor 6 is started, and the central shaft 12 is driven to rotate. Under the drive of the connecting strip 14, the stirring plate 13 can be driven to rotate to stir the different raw materials, which is beneficial to the mixed pretreatment of the polyurethane composite material. At the same time, the inside of the tank body 1 can be heated by energizing the electric heating tube 17, which is beneficial to the subsequent pultrusion molding of the polyurethane composite material. Then the discharge valve 5 is opened to discharge the pretreated polyurethane composite material mixed raw material, and at the same time, the threaded rod 15 is driven to rotate, so that the lifting strip 9 drives the transmission column 11 to move downward, and the scraper 16 moves downward to scrape the raw materials adhered to the inner wall of the tank body 1, which is beneficial to the stable output of the polyurethane composite material after mixed pretreatment.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A pretreatment device for pultrusion of polyurethane composite materials, comprising a tank (1), characterized in that: A tank cover (2) is fixedly mounted on the top of the tank body (1) by means of screws, a mixing chamber (101) is arranged inside the tank body (1), a scraper (16) is arranged inside the mixing chamber (101), the scraper (16) is arranged as an annular plate, the outer side surface of the scraper (16) is in contact with the inner wall of the tank body (1), transmission columns (11) are symmetrically fixedly mounted on both sides above the scraper (16), and the upper end of the transmission column (11) extends to the top of the tank cover (2).

2. A pretreatment device for pultrusion of polyurethane composite materials according to claim 1, characterized in that: A driving box (8) is symmetrically fixedly installed on both sides of the tank body (1), a box cavity (801) is arranged inside the driving box (8), a lifting strip (9) is arranged above the driving box (8), and the lower end of the lifting strip (9) is inserted into the box cavity (801), and a connecting top plate (10) is fixedly installed above the lifting strip (9), and the connecting top plate (10) is fixedly connected to the transmission column (11) by screws.

3. A pretreatment device for pultrusion molding of a polyurethane composite material according to claim 2, characterized in that: A threaded rod (15) is rotatably mounted inside the driving box (8), a threaded cavity (901) is provided inside the lifting strip plate (9), the upper end of the threaded rod (15) extends into the interior of the threaded cavity (901), and the threaded rod (15) is threadedly connected to the lifting strip plate (9).

4. A pretreatment device for pultrusion molding of a polyurethane composite material according to claim 3, characterized in that: A central shaft (12) is rotatably mounted in the middle below the tank cover (2), a stirring plate (13) is arranged outside the central shaft (12), connecting strips (14) are symmetrically fixedly mounted above and below the stirring plate (13), and the connecting strips (14) are fixedly connected to the central shaft (12).

5. A pretreatment device for pultrusion molding of a polyurethane composite material according to claim 4, characterized in that: An electric motor (6) is fixedly installed in the middle above the tank cover (2), and an output end of the electric motor (6) is fixedly connected to the central shaft (12).

6. A pretreatment device for pultrusion molding of a polyurethane composite material according to claim 1, characterized in that: A preheating chamber (102) is arranged inside the tank body (1) along the outer side of the mixing chamber (101), and an electric heating pipe (17) is arranged inside the preheating chamber (102).

7. A pretreatment device for pultrusion molding of a polyurethane composite material according to claim 1, characterized in that: A feed pipe (7) is fixedly mounted above the tank cover (2), an operation panel (3) is fixedly mounted at the front end of the tank body (1), a support column (4) is fixedly mounted below the tank body (1), and three support columns (4) are provided, and a discharge valve (5) is fixedly mounted in the middle below the tank body (1).

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