Mixing and stirring device for SMC (Sheet Molding Compound) production

Abstract

The utility model relates to the technical field of SMC (Sheet Molding Compound) composite materials, in particular to a mixing and stirring device for SMC sheet production, which comprises a stirring box, a box cover, an auxiliary material feeding assembly and a butt joint assembly, the stirring box is provided with a stirring cavity with an upper opening, a weighing machine is embedded in the top wall of an inverted L-shaped support, a material transferring box is placed on the weighing machine, and the auxiliary material feeding assembly is connected with the butt joint assembly. In this way, in the process of conveying the auxiliary materials into the material transferring box, the weighing device can monitor the weight change of the material transferring box and the auxiliary materials in the material transferring box in real time. The weight value of auxiliary materials needing to be added is set in advance, when the set weight is reached, the motor can be controlled to stop rotating (the servo motor is adopted, and starting, stopping and rotating conditions can be accurately controlled), then the feeding operation of the auger is stopped, accurate and quantitative feeding of the auxiliary materials is achieved, and the feeding efficiency is improved. The problem that quantitative feeding is inconvenient for a traditional auxiliary material feeding device is effectively solved; the butt joint assembly can be conveniently in butt joint with the transfer box, so that the box cover can be conveniently opened and closed, and the inner wall of the stirring box can be regularly cleaned.

Description

Technical Field

[0001] This utility model relates to the field of SMC composite material technology, specifically a mixing and stirring device for SMC sheet production. Background Technology

[0002] SMC sheet, or sheet molding compound, is a high-performance fiber-reinforced thermosetting plastic composite material. When it is mixed and stirred, it requires the addition of auxiliary materials. Traditional auxiliary material feeding devices are inconvenient for quantitative feeding, and if the auxiliary material device is fixed on the lid, it is inconvenient to open and close the lid and to clean the mixing tank regularly, making it inconvenient to use. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a mixing and stirring device for SMC sheet production.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mixing and stirring device for SMC sheet production, comprising a mixing tank, a tank cover, an auxiliary material feeding assembly, and a docking assembly. The mixing tank is provided with a mixing chamber with an upper opening. The mixing tank is also provided with a tank cover for closing the mixing chamber. The tank cover is provided with a mixing assembly. The auxiliary material feeding assembly includes an inverted L-shaped support, an auxiliary material box, a transfer box, a weighing device, a motor, and an auger. The support is located around the mixing tank, and a weighing device is embedded in the top wall of the support. The transfer box is located on the weighing device, and an auxiliary material box is also provided at the input end of the transfer box. The motor is located on the side away from the mixing tank. An auger is also provided inside the transfer box. The output end of the motor passes through the transfer box and is connected to the auger. The output end of the transfer box is located above the tank cover, and a docking assembly adapted to the output end of the transfer box is provided on the tank cover.

[0007] The docking assembly includes a sliding plate, a bent pipe, a side plate, and a pusher. A side plate is provided on one end of the box cover near the center of the box cover. The two ends of the pusher are respectively connected to the side plate and one end of the bent pipe. The sliding plate passes through the bottom of the bent pipe, and the top of the bent pipe is inserted into the output end of the transfer box. A notch is provided on the side of the box cover near the support. A storage groove is provided on the bottom wall of the notch near the center of the box cover. One end of the sliding plate is slidably connected to the storage groove, and the other end of the sliding plate is adapted to the notch.

[0008] To ensure the stability of the skateboard's sliding motion, this utility model has an improvement: the side cross-section of the skateboard is shaped like a cross.

[0009] Preferably, the motor is a servo motor.

[0010] Preferably, the propulsion device is a cylinder.

[0011] To provide stable support for the mixing tank, the present invention includes an improvement where a support leg is provided below the mixing tank, a discharge pipe is provided on the bottom wall of the mixing tank, and a switch valve is provided on the discharge pipe.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the present invention provides a mixing and stirring device for SMC sheet production, which has the following advantages:

[0014] This mixing and stirring device for SMC sheet production features a weighing device embedded in the top wall of an inverted L-shaped support. A transfer box is placed on the weighing device, allowing the weighing device to monitor the weight changes of the transfer box and its contents in real time during the feeding of auxiliary materials. By pre-setting the required weight of auxiliary materials, the device can control the motor (a servo motor for precise start-stop and rotation control) to stop rotating when the set weight is reached, thus stopping the auger's feeding operation. This achieves precise quantitative feeding of auxiliary materials and effectively solves the problem of inconvenient quantitative feeding in traditional auxiliary material feeding devices.

[0015] The docking components facilitate docking with the transfer box, thereby making it easy to open and close the box lid and clean the inner wall of the mixing box regularly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is a partial schematic diagram of the structure of this utility model;

[0019] Figure 4 This is a partial upward view of the slide plate structure of this utility model in its retracted state.

[0020] In the diagram: 1. Mixing tank; 2. Tank cover; 3. Support frame; 4. Auxiliary material box; 5. Transfer box; 6. Weighing device; 7. Motor; 8. Screwdriver; 9. Slide plate; 10. Bend; 11. Side plate; 12. Propeller; 13. Support leg; 14. Discharge pipe; 15. Switch valve. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 A mixing and stirring device for SMC sheet production includes a mixing tank 1, a tank cover 2, an auxiliary material feeding assembly, and a docking assembly. The mixing tank 1 is provided with a mixing chamber with an upper opening. The mixing tank 1 is also provided with a tank cover 2 for closing the mixing chamber. The tank cover 2 is provided with a mixing assembly. The auxiliary material feeding assembly includes an inverted L-shaped support 3, an auxiliary material box 4, a transfer box 5, a weighing device 6, a motor 7, and an auger 8. The support 3 is located around the mixing tank 1, and the weighing device 6 is embedded in the top wall of the support 3. The transfer box 5 is located on the weighing device 6, and the input end of the transfer box 5 is also provided with the auxiliary material box 4. The motor 7 is located on the side away from the mixing tank 1. The transfer box 5 is also provided with an auger 8. The output end of the motor 7 passes through the transfer box 5 and is connected to the auger 8. The output end of the transfer box 5 is located above the tank cover 2. The tank cover 2 is also provided with a docking assembly adapted to the output end of the transfer box 5.

[0023] The motor 7 of the auxiliary material feeding assembly is started. Motor 7 is a precisely controlled servo motor. Motor 7 drives the auger 8 to rotate within the transfer box 5. At this time, the auxiliary materials located in the auxiliary material box 4 are continuously fed into the transfer box 5 along the input end of the transfer box 5 under the rotation of the auger 8. During this process, the weight of the transfer box 5 and the auxiliary materials inside it, placed on the weighing device 6, will continuously change. The weighing device 6 monitors this in real time and feeds back the weight data. The operator pre-sets the specific weight value of the auxiliary materials to be added in the control system (which can be an intelligent control terminal connected to the weighing device 6 and motor 7, etc.) according to the SMC sheet production process requirements. When the weighing device 6 detects that the weight of the transfer box 5 and the auxiliary materials in it has reached the preset value, the control system sends a stop signal to the motor 7, the motor 7 stops rotating, and the auger 8 also stops feeding. This achieves precise quantitative feeding of auxiliary materials, ensuring that the amount of auxiliary materials added to the mixing box 1 each time meets the production formula requirements. This helps to ensure the quality stability of SMC sheet products and avoids affecting the performance of materials and the quality of the final product due to inaccurate addition of auxiliary materials.

[0024] The lid 2 covers the mixing tank 1. The mixing component is used to uniformly mix the materials. It is a commercially available device and will not be described in detail here. The docking component can reciprocate and connect with the transfer box 5, which is convenient for loading and unloading materials and is easy to use.

[0025] In actual use, the docking assembly includes a sliding plate 9, a bent pipe 10, a side plate 11, and a pusher 12. The side plate 11 is provided on the box cover 2 near the center of the box cover 2. The two ends of the pusher 12 are respectively connected to the side plate 11 and one end of the bent pipe 10. The sliding plate 9 passes through the bottom of the bent pipe 10, and the output end of the transfer box 5 is inserted into the top of the bent pipe 10. A notch is provided on the side of the box cover 2 near the support 3. A storage groove is provided on the bottom wall of the notch near the center of the box cover 2. One end of the sliding plate 9 is slidably connected to the storage groove, and the other end of the sliding plate 9 is adapted to the notch.

[0026] The piston rod of the pusher 12 (using a fast-responding cylinder) retracts, pulling the bent tube 10 away from the center of the box cover 2. Since the upper part of the bent tube 10 is connected to the output end of the transfer box 5, the bent tube 10 and the transfer box 5 are misaligned. As the slide plate 9 continues to move, the notch in the top view of the equipment is exposed relative to the output end of the transfer box. At this time, the box cover 2 can be easily disassembled. The cross-shaped design of the side section of the slide plate 9 ensures its sliding stability. As the slide plate 9 slides, the upper opening of the box cover 2 is gradually exposed, and finally the box cover 2 can be opened smoothly, realizing the convenient separation of the box cover 2 from the auxiliary material feeding component, making it convenient for operators to approach the inside of the mixing tank 1 to carry out corresponding work.

[0027] In actual use, the mixing tank 1 is also provided with a support leg 13 below, and a discharge pipe 14 is also provided on the bottom wall of the mixing tank 1. A switch valve 15 is also provided on the discharge pipe 14. The support leg 13 provides stable support for the mixing tank 1. The discharge pipe 14 can be opened and closed by opening and closing the switch valve 15.

[0028] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0029] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A mixing and stirring device for SMC sheet production, comprising a stirring box (1), a box cover (2), an auxiliary material feeding assembly and a docking assembly, characterized in that: The stirring box (1) is provided with a stirring cavity with an upper opening, and is further provided with a box cover (2) for closing the stirring cavity, and the box cover (2) is provided with a stirring assembly, and the auxiliary material feeding assembly comprises an inverted L-shaped support (3), an auxiliary material box (4), a material rotating box (5), a weight indicator (6), a motor (7) and an auger (8), the support (3) is arranged on the side of the stirring box (1), the top wall of the support (3) is further embedded with the weight indicator (6), the material rotating box (5) is arranged on the weight indicator (6), the input end of the material rotating box (5) is further provided with the auxiliary material box (4), the motor (7) is arranged on the side away from the stirring box (1), the material rotating box (5) is further provided with the auger (8), the output end of the motor (7) penetrates through the material rotating box (5) and is connected with the auger (8), the output end of the material rotating box (5) is arranged above the box cover (2), and the box cover (2) is further provided with a docking assembly matched with the output end of the material rotating box (5).

2. A mixing and stirring device for SMC sheet production according to claim 1 characterized in that: The docking assembly comprises a sliding plate (9), an elbow pipe (10), a side plate (11) and a pusher (12), the side plate (11) is arranged on the box cover (2) close to one end of the center of the box cover (2), the pusher (12) is connected with one end of the side plate (11) and the elbow pipe (10) at two ends respectively, the elbow pipe (10) penetrates through the sliding plate (9) below, the elbow pipe (10) is inserted into the output end of the material rotating box (5) above, the box cover (2) is provided with a notch close to the side of the bottom wall of the center of the box cover (2), the notch is provided with a receiving groove close to the side of the bottom wall of the center of the box cover (2), one end of the sliding plate (9) is slidably connected with the receiving groove, and the other end of the sliding plate (9) is matched with the notch.

3. A mixing and stirring device for SMC sheet production according to claim 2, characterized in that: The side section of the sliding plate (9) is in the shape of a cross.

4. A mixing and stirring device for SMC sheet production according to claim 3, characterized in that: The motor (7) is a servo motor (7).

5. A mixing and stirring device for SMC sheet production according to claim 4, characterized in that: The pusher (12) is a pneumatic cylinder.

6. A mixing and stirring device for SMC sheet production according to claim 5, characterized in that: The stirring box (1) is further provided with supporting legs (13) below, and the bottom wall of the stirring box (1) is further provided with a discharge pipe (14), and the discharge pipe (14) is further provided with an on-off valve (15).

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