Preparation device of low-gram-weight SMC (Sheet Molding Compound) prepreg

Abstract

The utility model belongs to the technical field of prepreg processing, and discloses a preparation device of low-gram-weight SMC (Sheet Molding Compound) prepreg. Comprising a stirring kettle, a connecting frame is fixedly connected to the outer side of the stirring kettle, a motor is installed at the top end of the connecting frame, the output end of the motor is in transmission connection with a stirring rod, the stirring rod extends into the stirring kettle, three sets of stirring blades are arranged on the periphery of the stirring rod, and a first hinge plate is fixedly connected to the interior of the stirring rod; and the interior of the stirring rod is slidably connected with a second hinge plate. Through ingenious combination of the traction mechanism, the hinge plate and the connecting rod, flexible adjustment of the distance between the stirring blade and the inner wall of the stirring kettle is achieved, the stirring blade can easily adapt to stirring kettles of different sizes through the design, a user is allowed to accurately adjust the position of the stirring blade according to specific stirring requirements, and the stirring effect is improved. Therefore, the universality and the stirring efficiency of the equipment are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prepreg processing, and more specifically, to a preparation device for low-weight SMC prepreg. Background Art

[0002] With the rapid development of modern industrial technology, especially in the fields of aerospace, automobile manufacturing, electronic appliances and wind energy, the demand for high-performance and lightweight materials is growing. In this context, the development of low-weight SMC prepregs is particularly important. Prepregs are a combination of resin matrix and reinforcement materials made by impregnating continuous fibers, fabrics or chopped fibers into a resin matrix under certain conditions. They are the key material form for manufacturing advanced composite components. In the preparation of prepregs, mixing is also a particularly important step, and this process requires the help of a mixing device.

[0003] Existing mixing devices are mostly composed of a stirring kettle, a motor, a stirring rod and a stirring blade. First, the raw materials required for the prepreg are poured into the stirring kettle, and then the motor is started. When the motor is running, the stirring rod drives the stirring blade to rotate, and the rotation of the stirring blade will hit the raw materials inside the stirring kettle, thereby achieving the purpose of mixing and stirring. Finally, the stirred raw materials are discharged from the interior of the stirring kettle to complete the mixing operation.

[0004] However, the existing mixing device cannot conveniently adjust the distance between the stirring blade and the inner wall of the stirring kettle, which results in the stirring blade being unable to effectively adapt to stirring kettles of different sizes. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention proposes a preparation device for low-weight SMC prepreg.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a preparation device for low-weight SMC prepreg, comprising a stirring kettle, a connecting frame fixedly connected to the outer side of the stirring kettle, a motor installed on the top of the connecting frame, the output end of the motor is transmission-connected to a stirring rod, the stirring rod extends to the interior of the stirring kettle, three groups of stirring blades are arranged on the periphery of the stirring rod, a first hinge plate is fixedly connected to the interior of the stirring rod, a second hinge plate is slidingly connected to the interior of the stirring rod, the first hinge plate and the second hinge plate are both hingedly connected to the three groups of stirring blades with a connecting rod, a first spring is fixed between the first hinge plate and the second hinge plate, and a traction mechanism for driving the second hinge plate to move is provided on the top of the second hinge plate.

[0007] Furthermore, the traction mechanism includes a traction rope, a connecting plate and a pair of limiting rods, the traction rope is fixedly connected to the top end of the second hinge plate, the connecting plate is fixedly connected to the end of the traction rope away from the second hinge plate, the pair of limiting rods are both fixedly connected to the outer side of the stirring rod, and the pair of limiting rods both pass through the connecting plate.

[0008] Furthermore, a fixing plate is fixedly connected to the outer side of the stirring rod, and a locking mechanism is provided on the top end of the fixing plate, and the locking mechanism is used to limit the movement of the connecting plate.

[0009] Furthermore, the locking mechanism includes multiple groups of slots and clamping rods, the multiple groups of slots are opened at the top of the fixed plate, the clamping rods are slidably connected to the inside of the connecting plate, and the bottom ends of the clamping rods are located inside the slots.

[0010] Furthermore, a connecting disk is fixedly connected to the outer side of the clamping rod, and a second spring is fixedly connected between the connecting disk and the connecting plate.

[0011] The technical effects and advantages of the preparation device of a low-weight SMC prepreg of the utility model are as follows:

[0012] The utility model realizes flexible adjustment of the distance between the stirring blade and the inner wall of the stirring kettle through the ingenious combination of the traction mechanism, the hinge plate and the connecting rod. This design not only enables the stirring blade to be easily adapted to stirring kettles of different sizes, but also allows the user to accurately adjust the position of the stirring blade according to specific stirring needs, thereby greatly improving the versatility and stirring efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic cross-sectional view of the stirring kettle in the present invention.

[0015] Figure 3 It is a cross-sectional schematic diagram of the stirring rod in the present invention.

[0016] Figure 4 This is a schematic diagram of the clamping rod and the second spring structure in the present invention.

[0017] In the picture:

[0018] 1. Mixing kettle; 2. Connecting frame; 3. Motor; 4. Stirring rod; 5. Stirring blade; 6. First hinge plate; 7. Second hinge plate; 8. Connecting rod; 9. Traction rope; 10. Connecting plate; 11. Limiting rod; 12. Fixing plate; 13. Slot; 14. Clamping rod; 15. Connecting plate; 16. Second spring; 20. First spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 - Figure 3 As shown, a preparation device for low-weight SMC prepreg comprises a stirring kettle 1, a connecting frame 2 is fixedly connected to the outer side of the stirring kettle 1, a motor 3 is installed on the top of the connecting frame 2, the output end of the motor 3 is transmission-connected to a stirring rod 4, the stirring rod 4 extends to the interior of the stirring kettle 1, three groups of stirring blades 5 are arranged on the periphery of the stirring rod 4, a first hinge plate 6 is fixedly connected to the interior of the stirring rod 4, a second hinge plate 7 is slidingly connected to the interior of the stirring rod 4, a connecting rod 8 is hinged between the first hinge plate 6 and the second hinge plate 7 and the three groups of stirring blades 5, a first spring 20 is fixed between the first hinge plate 6 and the second hinge plate 7, and a traction mechanism for driving the second hinge plate 7 to move is provided on the top of the second hinge plate 7.

[0021] The existing mixing device cannot conveniently adjust the distance between the stirring blade 5 and the inner wall of the stirring pot 1, which results in the stirring blade 5 being unable to effectively adapt to stirring pots 1 of different sizes. When the present invention is in use, the raw materials to be mixed are first brought into the interior of the stirring pot 1, and then the second hinge plate 7 is driven to move upward by the traction mechanism. The upward movement of the second hinge plate 7 will pull the first spring 20 and cause it to deform and generate elastic potential energy. In the process of the second hinge plate 7 moving upward, the second hinge plate 7 will also drive the connecting rod 8 to swing, and the swing of the connecting rod 8 will drive the stirring blade 5 to move in the direction close to the stirring rod 4, thereby achieving the function of adjusting the distance between the stirring blade 5 and the inner wall of the stirring pot 1, making it convenient for the stirring blade 5 to adapt to stirring pots 1 of different sizes, and can also be adjusted to a suitable position according to different stirring needs. Then the motor 3 can be started to drive the stirring rod 4 and the stirring blade 5 to rotate to mix the raw materials.

[0022] like Figure 2 and Figure 3 As shown, the traction mechanism includes a traction rope 9, a connecting plate 10 and a pair of limiting rods 11. The traction rope 9 is fixedly connected to the top end of the second hinge plate 7, the connecting plate 10 is fixedly connected to the end of the traction rope 9 away from the second hinge plate 7, the pair of limiting rods 11 are both fixedly connected to the outer side of the stirring rod 4, and the pair of limiting rods 11 both pass through the connecting plate 10.

[0023] When the connecting plate 10 is pulled, the connecting plate 10 will pull the traction rope 9 along the outer sides of the pair of limiting rods 11 when moving, and the traction rope 9 will be forced to drive the second hinge plate 7 to move.

[0024] like Figure 3 and Figure 4 As shown, a fixing plate 12 is fixedly connected to the outer side of the stirring rod 4 , and a locking mechanism is provided on the top end of the fixing plate 12 , and the locking mechanism is used to limit the movement of the connecting plate 10 .

[0025] When moving the connecting plate 10, first, the limiting of the connecting plate 10 is ended by the locking mechanism, and then the connecting plate 10 is moved. When the connecting plate 10 moves to a suitable distance, the connecting plate 10 is limited again by the locking mechanism, and the position of the stirring blade 5 can be fixed. When the stirring blade 5 needs to be reset, it is only necessary to end the limiting of the connecting plate 10 by the locking mechanism, and the first spring 20 will release the elastic potential energy, thereby driving the second hinge plate 7 to reset. The reset of the second hinge plate 7 will drive the stirring blade 5 to move away from the stirring rod 4 through the connecting rod 8.

[0026] like Figure 3 and Figure 4 As shown, the locking mechanism includes multiple groups of slots 13 and levers 14. The multiple groups of slots 13 are opened at the top of the fixed plate 12. The levers 14 are slidably connected to the inside of the connecting plate 10. The bottom end of the lever 14 is located inside the slots 13.

[0027] In the initial state, the card rod 14 is located inside the card slot 13 under the action of gravity. At this time, the card rod 14 cannot move, thereby limiting the connecting plate 10. When the connecting plate 10 needs to be moved, it is only necessary to pull the card rod 14 to make it disengage from the inside of the card slot 13. At this time, the card slot 13 ends its limitation on the card rod 14, and the connecting plate 10 can be moved.

[0028] like Figure 4 As shown, a connecting disk 15 is fixedly connected to the outer side of the clamping rod 14 , and a second spring 16 is fixedly connected between the connecting disk 15 and the connecting plate 10 .

[0029] The setting of the second spring 16 can stabilize the card rod 14, preventing the card rod 14 from being unstable inside the card slot 13 due to gravity alone, and preventing the centrifugal force generated by the fixed plate 12 when the stirring rod 4 rotates to throw the card rod 14 out of the card slot 13. The second spring 16 cooperates with the gravity of the card rod 14 itself to improve the stability of the card rod 14 when it is inside the card slot 13.

[0030] Working principle: first, the raw materials to be mixed are brought into the interior of the mixing tank 1, and then the connecting plate 10 is pulled. When the connecting plate 10 moves, it will pull the traction rope 9 along the outer side of a pair of limit rods 11, and the traction rope 9 is subjected to force, which will drive the second hinge plate 7 to move. The upward movement of the second hinge plate 7 will pull the first spring 20, causing it to deform and generate elastic potential energy. In the process of the second hinge plate 7 moving upward, the second hinge plate 7 will also drive the connecting rod 8 to swing, and the swing of the connecting rod 8 will drive the stirring blade 5 to move in the direction close to the stirring rod 4, thereby achieving the function of adjusting the distance between the stirring blade 5 and the inner wall of the mixing tank 1, so that the stirring blade 5 can adapt to mixing tanks 1 of different sizes, and can also be adjusted to a suitable position according to different stirring needs. Then the motor 3 can be started to drive the stirring rod 4 and the stirring blade 5 to rotate to mix the raw materials;

[0031] When the connecting plate 10 is moved, the limiting of the connecting plate 10 is first stopped by the snap mechanism, and then the connecting plate 10 is moved. When the connecting plate 10 moves to a suitable distance, the connecting plate 10 is limited again by the snap mechanism to fix the position of the stirring blade 5. When the stirring blade 5 needs to be reset, it is only necessary to stop limiting the connecting plate 10 by the snap mechanism, and the first spring 20 will release the elastic potential energy, thereby driving the second hinge plate 7 to reset. The reset of the second hinge plate 7 will drive the stirring blade 5 to move away from the stirring rod 4 through the connecting rod 8;

[0032] In the initial state, the card rod 14 is located inside the card slot 13 under the action of gravity. At this time, the card rod 14 cannot move, thereby limiting the connecting plate 10. When the connecting plate 10 needs to be moved, it is only necessary to pull the card rod 14 to make it disengage from the inside of the card slot 13. At this time, the card slot 13 ends its limitation on the card rod 14, and the connecting plate 10 can be moved.

[0033] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A preparation device for low-weight SMC prepreg, comprising a stirring kettle (1), a connecting frame (2) fixedly connected to the outside of the stirring kettle (1), a motor (3) installed on the top of the connecting frame (2), an output end of the motor (3) being transmission-connected to a stirring rod (4), the stirring rod (4) extending into the interior of the stirring kettle (1), and three groups of stirring blades (5) being arranged on the periphery of the stirring rod (4), characterized in that: A first hinge plate (6) is fixedly connected to the interior of the stirring rod (4), and a second hinge plate (7) is slidably connected to the interior of the stirring rod (4). A connecting rod (8) is hinged between the first hinge plate (6) and the second hinge plate (7) and the three groups of stirring blades (5). A first spring (20) is fixedly connected between the first hinge plate (6) and the second hinge plate (7). A traction mechanism for driving the second hinge plate (7) to move is provided at the top end of the second hinge plate (7).

2. The preparation device of low-weight SMC prepreg according to claim 1, characterized in that, The traction mechanism comprises a traction rope (9), a connecting plate (10) and a pair of limiting rods (11); the traction rope (9) is fixedly connected to the top end of the second hinge plate (7); the connecting plate (10) is fixedly connected to the end of the traction rope (9) away from the second hinge plate (7); the pair of limiting rods (11) are both fixedly connected to the outer side of the stirring rod (4); and the pair of limiting rods (11) both pass through the connecting plate (10).

3. The preparation device of low-weight SMC prepreg according to claim 2, characterized in that, A fixed plate (12) is fixedly connected to the outer side of the stirring rod (4), and a locking mechanism is provided at the top end of the fixed plate (12), and the locking mechanism is used to limit the movement of the connecting plate (10).

4. The preparation device of low-weight SMC prepreg according to claim 3, characterized in that The locking mechanism comprises a plurality of groups of card slots (13) and card rods (14), wherein the plurality of groups of card slots (13) are all provided at the top end of the fixed plate (12), the card rods (14) are slidably connected to the inside of the connecting plate (10), and the bottom end of the card rods (14) is located inside the card slots (13).

5. The device for preparing low-weight SMC prepreg according to claim 4, characterized in that: A connecting disk (15) is fixedly connected to the outer side of the clamping rod (14), and a second spring (16) is fixedly connected between the connecting disk (15) and the connecting plate (10).

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