High-speed stirring machine for producing SMC (Sheet Molding Compound)

Abstract

The utility model relates to the technical field of production equipment of SMC (Sheet Molding Compound), in particular to a high-speed stirrer for producing SMC, which comprises a tank body and a tank cover, the tank cover is arranged at the top end of the tank body, and the bottom end of the tank body is bent to be arc-shaped; the stirring mechanism comprises a stirring rod rotationally connected to the bottom end of the tank cover, and the top end of the stirring rod penetrates out of the tank cover; according to the stirring mechanism, materials in the tank body can be rotated at a high speed through mutual cooperation of the stirring rod and the scraping plate in the stirring mechanism, efficient stirring of the materials is achieved, the materials can be prevented from being adhered to the inner bottom wall of the tank body, and meanwhile under the action of a second bevel gear, a third bevel gear and a reciprocating lead screw, the stirring efficiency is improved. The scraping ring can reciprocate up and down in the stirring process of the device, materials on the inner wall of the tank body are scraped, the problem that the materials adhere to the inner wall of the tank body is solved, the SMC stirring effect is enhanced, meanwhile, the scraping ring is not prone to deformation, and the scraping and sweeping effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment for SMC molding compounds, in particular to a high-speed mixer for producing SMC molding compounds. Background Art

[0002] SMC molding compound is glass fiber reinforced molding compound. In the production process of SMC molding compound, in order to make the SMC molding compound finished product have uniform physical properties such as color and density to ensure the quality of SMC molding compound products, the mixing of various additives before processing is very critical. Usually, a stirring device is used to stir the plastic raw materials. The existing stirring device stirs the materials through stirring blades. The stirring blades cannot stir the materials fully, resulting in uneven mixing of the materials, affecting the next production process and reducing the quality of the SMC molding compound finished product.

[0003] After searching, the Chinese patent "A high-speed mixer for SMC molding compound production" authorization announcement number "CN 212352515U" states that when the stirring blade contacts the material, the disc also rotates under the action of friction, so that the material is fully stirred and the stirring speed of the material is increased. The brush on the outer wall of the fixed frame brushes the inner wall of the machine body, so that the material attached to the inner wall of the machine body is continuously brushed off, preventing the material from adhering to the inner wall of the machine body and agglomerating, thereby improving the quality of material stirring;

[0004] In the above application, a brush is used to scrape the residual material on the inner wall of the tank body, but the material that the brush can clean is limited, and when a lot of material is accumulated, the brush will be deformed, affecting the scraping effect. At the same time, the material will stick to the brush, making it inconvenient to clean. Utility Model Content

[0005] The purpose of the utility model is to provide a high-speed mixer for SMC molding compound production in order to solve the above-mentioned problem, which improves the problem that the material for brush cleaning is limited. When the material is piled up, the brush will be deformed, affecting the scraping effect. At the same time, the material will stick to the brush, making it inconvenient to clean.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme, a high-speed mixer for SMC molding compound production, comprising:

[0007] A tank body and a tank cover, wherein the tank cover is arranged at the top of the tank body, and the bottom of the tank body is curved in an arc shape;

[0008] A stirring mechanism, the stirring mechanism includes a stirring rod rotatably connected to the bottom end of the tank cover, the top end of the stirring rod passes through the tank cover, a motor is fixedly installed on the top end of the tank cover, the output shaft of the motor and the top end of the stirring rod are fixedly connected to a first bevel gear, the top end of the tank cover is fixedly connected to a mounting box, the inner wall of the mounting box is rotatably connected to a reciprocating screw, a sliding block is provided on the surface of the reciprocating screw, a third bevel gear is fixedly connected to the surface of the reciprocating screw, the other end of the first bevel gear above passes through the mounting box and is fixedly connected to the second bevel gear, the sliding block sequentially passes through the mounting box and the tank cover and is fixedly connected to a scraper ring.

[0009] Preferably, a cleaning ring is fixedly connected to the bottom end of the tank cover, and the outer surface of the cleaning ring fits with the inner edge of the scraper ring, so that the scraper ring can be cleaned.

[0010] Preferably, a connecting rod is fixedly connected to the surface of the sliding block, the other end of the connecting rod passes through the mounting box and is fixedly connected to a lifting rod, and the lifting rod passes through the tank cover and is fixedly connected to the scraper ring.

[0011] Preferably, the lifting rod is in a "U" shape, the connecting rod is in an "L" shape, a strip groove is provided on one side of the installation box, and the connecting rod slides in the strip groove.

[0012] Preferably, two cylinders are fixedly connected to the outer wall of the tank body, and the top ends of the cylinders are fixedly connected to the tank cover.

[0013] Preferably, a scraper is fixedly connected to the lower surface of the stirring rod, and the scraper fits the curvature of the inner bottom wall of the tank body.

[0014] Preferably, bearings are provided at the connection between the reciprocating screw and the mounting box.

[0015] The beneficial effects of the utility model are:

[0016] The stirring mechanism utilizes the cooperation between the stirring rod and the scraper therein to rotate the material in the tank at a high speed, realizes efficient stirring of the material and prevents the material from adhering to the inner bottom wall of the tank. At the same time, under the action of the second bevel gear, the third bevel gear and the reciprocating screw, the scraper ring can reciprocate up and down during the stirring process of the device to scrape the material on the inner wall of the tank, thereby preventing the SMC molding plastic from remaining on the inner wall of the tank due to its own adhesion, and enhancing the stirring effect of the SMC molding plastic. At the same time, the scraper ring is not easy to deform, and the scraping effect is better.

[0017] The cleaning ring can clean the scraper ring at the top of the scraper ring's running path, reduce the residual material on the scraper ring surface, and further improve the mixing effect of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the stirring mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection of the power components of the utility model;

[0022] Figure 5 It is a schematic diagram of the connection between the tank cover and the cylinder of the utility model.

[0023] In the figure: 100, tank body; 200, tank cover; 210, cylinder; 220, cleaning ring; 300, stirring mechanism; 310, stirring rod; 311, scraper; 320, motor; 330, first bevel gear; 340, mounting box; 350, reciprocating screw; 360, sliding block; 361, connecting rod; 362, lifting rod; 363, scraper ring; 370, second bevel gear; 380, third bevel gear. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] When implementing: Figure 1-5 As shown, a high-speed mixer for producing SMC molding compound comprises:

[0026] The can body 100 and the can cover 200, the can cover 200 is arranged on the top of the can body 100, and the bottom of the can body 100 is curved in an arc shape;

[0027] The stirring mechanism 300 includes a stirring rod 310 rotatably connected to the bottom end of the tank cover 200, the top end of the stirring rod 310 passes through the tank cover 200, a motor 320 is fixedly installed on the top end of the tank cover 200, the output shaft of the motor 320 and the top end of the stirring rod 310 are both fixedly connected to the first bevel gear 330, the top end of the tank cover 200 is fixedly connected to the mounting box 340, the inner wall of the mounting box 340 is rotatably connected to the reciprocating screw 350, the surface of the reciprocating screw 350 is provided with a sliding block 360, the surface of the reciprocating screw 350 is fixedly connected to the third bevel gear 380, the other end of the upper first bevel gear 330 passes through the mounting box 340 and is fixedly connected to the second bevel gear 370, the sliding block 360 passes through the mounting box 340 and the tank cover 200 in sequence and is fixedly connected to the scraper ring 363. At the same time, Figure 4 As shown in , the second bevel gear 370 and the third bevel gear 380 have a gear ratio, which reduces the rotation speed of the reciprocating screw 350 and avoids damage thereof.

[0028] like Figure 3 and Figure 4 As shown, a cleaning ring 220 is fixedly connected to the bottom end of the tank cover 200, and the outer surface of the cleaning ring 220 fits with the inner edge of the scraper ring 363, so the scraper ring 363 can be cleaned. When the scraper ring 363 is at the top of the up and down reciprocating path, the scraper ring 363 will contact the cleaning ring 220. The cleaning ring 220 can clean the scraper ring 363 at the top of the scraper ring 363 running path, reduce the residual material on the surface of the scraper ring 363, and further improve the mixing effect of the material.

[0029] like Figure 4 As shown, a connecting rod 361 is fixedly connected to the surface of the sliding block 360, and the other end of the connecting rod 361 passes through the installation box 340 and is fixedly connected to a lifting rod 362, and the lifting rod 362 passes through the tank cover 200 and is fixedly connected to the scraper ring 363. The connecting rod 361 and the lifting rod 362 can synchronously drive the scraper ring 363 to move, thereby realizing synchronization of the running paths between the two.

[0030] like Figure 3 and Figure 4 As shown, the lifting rod 362 is in a "U" shape, the connecting rod 361 is in an "L" shape, and a strip groove is provided on one side of the mounting box 340, and the connecting rod 361 slides in the strip groove. The scraper ring 363 can be limited to ensure the stability of its moving path.

[0031] like Figure 5 As shown, two cylinders 210 are fixedly connected to the outer wall of the tank body 100, and the top of the cylinder 210 is fixedly connected to the tank cover 200. The cylinder 210 can separate and merge the tank cover 200 and the tank body 100, making it more convenient to repair.

[0032] like Figure 2 and Figure 3 As shown, a scraper 311 is fixedly connected to the lower surface of the stirring rod 310, and the scraper 311 fits the curvature of the inner bottom wall of the tank body 100. The scraper 311 can scrape the inner bottom wall of the tank body 100 to prevent the material from sticking to the inner bottom wall of the tank body 100.

[0033] Bearings are provided at the connection points of the reciprocating screw 350 and the mounting box 340 .

[0034] When the utility model is in use, after the addition of materials is completed, the motor 320 is started. Under the action of the two first bevel gears 330, the stirring rod 310 rotates synchronously, and the stirring rod 310 stirs the materials in the tank body 100, and at the same time drives the scraper 311 to scrape the inner bottom wall of the tank body 100. At the same time, the second bevel gear 370 will rotate synchronously with the motor 320, thereby driving the third bevel gear 380 to rotate, so that the reciprocating screw 350 rotates in situ on the inner wall of the installation box 340, and the sliding block 360 reciprocates vertically on the surface of the reciprocating screw 350. The connecting rod 361 and the lifting rod 362 are used to drive the scraper ring 363 to move synchronously with the sliding block 360 in the tank body 100. The scraper ring 363 scrapes the inner wall of the tank body 100, and is synchronized with the stirring operation process. When the scraper ring 363 moves to the top, the cleaning ring 220 can clean the scraper ring 363, thereby realizing efficient stirring of the materials.

[0035] Note: The reciprocating screw is in the form of two thread grooves with the same pitch and opposite rotation direction, and the two ends are connected by a transition curve. Through the rotation of the reciprocating screw, the side of the spiral groove pushes the sliding block placed in the spiral groove to perform axial reciprocating motion.

[0036] It should be noted that the cylinders, motors, etc. in the above description are all devices with relatively mature application of existing technologies. The specific models can be selected according to actual needs. At the same time, the cylinders and motors can be powered by built-in power supplies or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-speed mixer for producing SMC molding compounds, characterized in that: include: A can body (100) and a can cover (200), wherein the can cover (200) is arranged at the top end of the can body (100), and the bottom end of the can body (100) is curved in an arc shape; A stirring mechanism (300), the stirring mechanism (300) comprising a stirring rod (310) rotatably connected to the bottom end of a tank cover (200), the top end of the stirring rod (310) passing through the tank cover (200), a motor (320) fixedly mounted on the top end of the tank cover (200), the output shaft of the motor (320) and the top end of the stirring rod (310) both being fixedly connected to a first bevel gear (330), the top end of the tank cover (200) being fixedly connected to a mounting box (340), the mounting box ( The inner wall of the reciprocating screw (340) is rotatably connected to a reciprocating screw (350), a sliding block (360) is provided on the surface of the reciprocating screw (350), a third bevel gear (380) is fixedly connected to the surface of the reciprocating screw (350), the other end of the first bevel gear (330) above passes through the installation box (340) and is fixedly connected to the second bevel gear (370), and the sliding block (360) passes through the installation box (340) and the tank cover (200) in sequence and is fixedly connected to a scraper ring (363).

2. The high-speed mixer for producing SMC molding compound according to claim 1, characterized in that: A cleaning ring (220) is fixedly connected to the bottom end of the tank cover (200); the outer surface of the cleaning ring (220) fits the inner edge of the scraper ring (363), and the scraper ring (363) can be cleaned.

3. The high-speed mixer for producing SMC molding compound according to claim 1, characterized in that: A connecting rod (361) is fixedly connected to the surface of the sliding block (360); the other end of the connecting rod (361) passes through the installation box (340) and is fixedly connected to a lifting rod (362); the lifting rod (362) passes through the tank cover (200) and is fixedly connected to a scraper ring (363).

4. The high-speed mixer for producing SMC molding compound according to claim 3, characterized in that: The lifting rod (362) is in a "U" shape, the connecting rod (361) is in an "L" shape, and a strip groove is provided on one side of the installation box (340), and the connecting rod (361) slides in the strip groove.

5. The high-speed mixer for producing SMC molding compound according to claim 1, characterized in that: Two cylinders (210) are fixedly connected to the outer wall of the tank body (100), and the top ends of the cylinders (210) are fixedly connected to the tank cover (200).

6. The high-speed mixer for producing SMC molding compound according to claim 1, characterized in that: A scraper (311) is fixedly connected to the lower surface of the stirring rod (310), and the scraper (311) fits the curvature of the inner bottom wall of the tank body (100).

7. The high-speed mixer for producing SMC molding compound according to claim 1, characterized in that: Bearings are provided at the connection points between the reciprocating screw (350) and the installation box (340).

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