CN205058341U - A thermosetting molding compound production device - Google Patents

Abstract

A production device for thermosetting molding compound mainly comprises a feeding bin, a first feeding pipeline, a second feeding pipeline, a first feeding screw, a second feeding screw, a motor and a double-roller mixing mill. The first feeding pipeline and the second feeding pipeline are arranged in an inclined mode, the first feeding pipeline and the second feeding pipeline are parallel to each other, a higher end portion of the first feeding pipeline and a higher end portion of the second feeding pipeline are parallel and level to each other, and the first discharging pipe is communicated with the second feeding pipe. End covers are respectively arranged at two ends of the first feeding pipeline and the second feeding pipeline, a shaft hole is formed in the middle of each end cover, and the first feeding screw rod and the second feeding screw rod are tightly matched with the shaft hole; the lower end part of the first feeding screw is in transmission connection with a power mechanism; the first feeding screw and the second feeding screw are in transmission connection; the screw pitch of the first feeding screw is the same as that of the second feeding screw, and the rotating direction is the same. This conveyer not only can the automatic conveying material, can also carry out the secondary compounding at data send process, makes the material mix more even, the partition send to the mixing roll, has thoroughly solved the mixed district material of two roller mixing rolls and has piled up the phenomenon, has improved product quality.

Description

A thermosetting molding compound production device

technical field

The utility model relates to a production device, in particular to a thermosetting molding compound production device, which is mainly used in the production of phenolic molding compound and other thermosetting molding compound.

Background technique

Bakelite is the earliest plastic product used by humans. It is an important thermosetting plastic produced by mixing and plasticizing phenolic resin, wood flour, and inorganic fillers. It is widely used in electrical insulation materials, furniture parts, daily necessities, handicraft manufacturing and so on. With the continuous modification of phenolic plastics by new materials and new technologies, its application fields have also expanded to new fields such as aerospace industry, construction, and automobiles.

At present, the preparation process of phenolic plastics is mainly: after the raw materials are mixed in the mixing device, they are sent to the double-roll mill through the conveying device for mixing and plasticization to become the final product.

The traditional feeding device is to add a metal pipe between the mixing equipment and the kneader to transfer the material by gravity and potential difference. The disadvantage is that due to the different formulas of the materials, some formula materials are easily accumulated in the mixing area of the double-roller mixer, and the materials enter the plasticizing area without sufficient mixing, which eventually leads to unstable product quality.

Therefore, changing the traditional feeding process and equipment to improve uniform and stable feeding is one of the important aspects to improve the quality of phenolic plastic products.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a thermosetting molding compound production device, which can not only automatically transfer materials, but also perform secondary mixing during the transfer process, so that the materials can be mixed more uniformly, etc. The parts are sent to the mixer. The phenomenon of material accumulation in the mixing area of the double-roller mixer has been completely solved, and the product quality has been improved.

The technical solution adopted by the utility model to solve the technical problem is: a thermosetting molding compound production device, which mainly includes a feeding bin, a first feeding pipeline, a first feeding screw, a second feeding pipeline, a second feeding screw, A motor and a double-roller kneader, the first feeding screw is installed in the first feeding pipeline, and the second feeding screw is installed in the second feeding pipeline.

The first feed pipe is arranged obliquely, and the upper side of the lower end is connected with the first feeding pipe, and the lower side of the higher end is connected with the first discharge pipe. The lower end of the feeding bin is connected to the first feeding pipe.

The second feeding pipe is arranged obliquely, and the upper side of the higher end is connected with the second feeding pipe, and the lower side of the lower end is connected with the second discharging pipe. The second discharge pipe is aligned with the feed inlet of the two-roll kneader, and the two-roll kneader is located below the second discharge pipe.

The first feeding pipeline and the second feeding pipeline are parallel to each other, and the higher ends of the first feeding pipeline and the second feeding pipeline are flush with each other. The first discharge pipe communicates with the second feed pipe.

Both ends of the first feeding pipe and the second feeding pipe are respectively provided with end caps, and the middle part of the end caps is provided with a shaft hole, and both the first feeding screw and the second feeding screw are closely matched with the shaft holes.

The motor is controlled by a frequency converter, and the motor is directly connected to the reducer and coupling and is connected to the lower end of the first feeding screw; the motor, reducer, coupling and the first feeding screw The lower end of each is mounted together on the bracket.

A first gear is installed on the higher end of the first feeding screw, a second gear is installed on the higher end of the second feeding screw, and the first gear and the second gear are meshed with each other for transmission, And the transmission ratio is 1, that is, constant speed transmission.

The pitch of the first feeding screw is the same as that of the second feeding screw, and the direction of rotation is the same. The diameter of the first feeding screw and the second feeding screw is 200 mm, and the pitch is 160 mm.

In order to ensure that the material can be better and evenly mixed in a long enough transmission distance, a part of the installation space can be saved by setting the pipeline inclined. In addition, the length of the first feeding pipeline is greater than the length of the second feeding pipeline. That is to leave space for the installation of the double-roller kneader through the way of one long and one short return conveying, so that the overall structure of the equipment is more compact and the floor space of the equipment is reduced.

In order to facilitate docking with the vertical outlet of the mixing device, the first feeding pipe is vertically installed on the lower end of the first feeding pipe. A first flange is provided at the mouth of the first feed pipe.

In order to realize the material acceptance of the two feeding pipes and ensure the shortest distance between the connecting pipes. The central axis of the first discharge pipe is perpendicular to the central axis of the first feeding pipe. The central axis of the second feeding pipe is perpendicular to the central axis of the second feeding pipe. The first discharge pipe and the second feed pipe are fixedly connected to each other via a second flange.

In order to facilitate the discharge of materials, the second discharge pipe is a trumpet-shaped pipe, that is, the shape of the second discharge pipe is trapezoidal.

In short, the utility model is to connect two feed pipes equipped with screw propellers with the same rotational speed and equal pitch between the discharge port of the mixing equipment and the feed port of the double-roller mixer. One end of the first feeding screw is connected with a coupling, the coupling is connected with the reducer, and the motor drives the reducer. The other end of the first feeding screw is equipped with a first gear; the corresponding end of the second feeding screw is also equipped with a gear, that is, a second gear, and the two gears are meshed with each other. The first discharge pipe communicates with the second feed pipe, which not only plays the role of conveying materials, but also plays the role of fixing the bracket. The second discharge pipe is aligned with the feed area of the mixer (one knife area). The frequency converter controls the motor to drive the rotation of the reducer. The reducer drives the two feeding screws in the two pipelines to rotate at the same speed through the coupling.

The beneficial effect of the utility model is that: since the pitch of the first and second feeding screws is equal, and the rotation speed is the same, they are all rotating at a uniform speed, so the material can be conveyed at a constant speed and uniformly under this state of motion, and the material is in the same state. During this process, the material is continuously turned up and down, left and right, and the material is mixed again. Therefore, the conveying device can not only automatically convey the materials, but also perform secondary mixing during the conveying process, so that the materials can be mixed more evenly and sent to the mixer in equal parts. The phenomenon of material accumulation in the mixing area of the double-roller mixer has been completely solved, and the product quality has been improved.

Description of drawings

Figure 1 is a schematic structural view of a thermosetting molding compound production device.

Explanation of symbols: 1-first feeding pipe 2-first feeding screw 3-second feeding pipe 4-second feeding screw 5-motor 6-first feeding pipe 7-first discharging pipe 8-second feeding Pipe 9-second discharge pipe 10-end cover 11-frequency converter 12-reducer 13-coupling 14-first gear 15-second gear 16-first flange 17-second flange 18 - Support 19 - Feeding bin 20 - Double-roller mixer.

detailed description

In order to make the above-mentioned technical contents and structural features of the present utility model more easily understood by those skilled in the art, the present application will be further described below in conjunction with the accompanying drawings and technical points.

As shown in Fig. 1, Fig. 1 is a schematic structural diagram of a thermosetting molding compound production device.

The thermosetting molding compound production device of the utility model mainly includes a feeding bin 19, a first feeding pipeline 1, a first feeding screw 2, a second feeding pipeline 3, a second feeding screw 4, a motor 5 and a double-roller mixer 20 , the first feeding screw 2 is installed in the first feeding pipeline 1 , and the second feeding screw 4 is installed in the second feeding pipeline 3 .

The first feeding pipe 1 is arranged obliquely, and the upper side of the lower end is connected with the first feeding pipe 6 , and the lower side of the higher end is connected with the first discharge pipe 7 . The lower outlet of the feeding bin 19 is connected to the first feeding pipe.

The second feeding pipe 3 is arranged obliquely, and the upper side of the higher end is connected with the second feeding pipe 8 , and the lower side of the lower end is connected with the second discharge pipe 9 . The second discharge pipe 9 is aligned with the feed inlet of the two-roll kneader 20 , and the two-roll kneader 20 is located below the second discharge pipe 9 . The distance between the second discharge pipe 9 and the feed inlet of the twin-roll kneader 20 is controlled between 5 cm and 8 cm to control dust.

The first feeding pipeline 1 and the second feeding pipeline 3 are parallel to each other, and the higher ends of the first feeding pipeline 1 and the second feeding pipeline 3 are flush with each other. The first discharge pipe 7 communicates with the second feed pipe 8 .

Both ends of the first feed pipe 1 and the second feed pipe 3 are respectively provided with end caps 10, and the middle part of the end cap 10 is provided with a shaft hole, and the first feed screw and the second feed screw are connected to the shaft hole work close with.

The motor 5 is controlled by a frequency converter 11, and the motor 5 is directly connected to the reducer 12 and the shaft coupling 13 and is connected to the lower end of the first feeding screw 2; the motor 5, the reducer 12, The coupling 13 and the lower end of the first feeding screw 2 are jointly installed on the bracket 18 .

A first gear 14 is installed on the higher end of the first feeding screw 2, and a second gear 15 is installed on the higher end of the second feeding screw 4. The first gear 14 and the second gear 15 mutual meshing transmission transmission, and the transmission ratio is 1, that is, constant speed transmission.

The pitch of the first feeding screw 2 is the same as that of the second feeding screw 4 , and the direction of rotation is the same. The diameter of the first feeding screw 2 and the second feeding screw 4 is 200 mm, and the pitch is 160 mm.

In order to ensure that the mixed material can be better and evenly mixed in a sufficiently long transmission distance, a part of the installation space can be saved by setting the pipeline at an angle. In addition, the length of the first feeding pipeline is greater than the length of the second feeding pipeline. That is to leave space for the installation of the double-roller kneader through the way of one long and one short return conveying, so that the overall structure of the equipment is more compact and the floor space of the equipment is reduced.

In order to facilitate docking with the vertical outlet of the mixing device, the first feeding pipe is vertically installed on the lower end of the first feeding pipe. A first flange 16 is provided at the nozzle of the first feed pipe 6 .

In order to realize the material acceptance of the two feeding pipes and ensure the shortest distance between the connecting pipes. The central axis of the first discharge pipe 7 is perpendicular to the central axis of the first feeding pipe 1 . The central axis of the second feeding pipe 8 is perpendicular to the central axis of the second feeding pipe 3 . The first discharge pipe 7 and the second feed pipe 8 are fixedly connected to each other via a second flange 17 .

In order to facilitate the discharge of materials, the second discharge pipe 9 is a trumpet-shaped pipe, that is, the shape of the second discharge pipe 9 is trapezoidal.

The working process of the utility model: the frequency converter 11 controls the motor 5 to drive the reducer 12 to rotate, the reducer 12 controls the first feeding screw 2 to rotate at a uniform speed through the coupling 10, and drives the discharge through the first gear 14 and the second gear 15 The second feeding screw 4 rotates at a constant speed. Since the distance between the spirals of the feeding screw is equal, and the rotation speed of the screw is uniform, the material can be conveyed at a constant speed and uniformly under this state of motion. In addition, the material can also be turned up and down, left and right, which has another re-mixing effect on the material.

The mixed materials are put into the feeding bin 19, conveyed through the first feeding pipeline 1 and the second feeding pipeline 3, and then arrive at the twin-roll mixer 20, where they are kneaded and finally granulated. into products.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model.

Claims (8)

1. a heat curing-type moulding compound process units, it mainly comprises the storehouse that feeds intake, the first charging line, the first feeding spiro rod, the second charging line, the second feeding spiro rod, motor and double roll mill, described first feeding spiro rod is arranged in the first charging line, described second feeding spiro rod is arranged in the second charging line, it is characterized in that:

Described first charging line is obliquely installed, and the upper lateral part of its lower end is connected with the first feed pipe, and the following side of its higher end is connected with the first discharge nozzle; The lower end discharging opening in the described storehouse that feeds intake docks with the first feed pipe;

Described second charging line is obliquely installed, and the upper lateral part of its higher end is connected with the second feed pipe, and the following side of its lower end is connected with the second discharge nozzle; The charging aperture of double roll mill aimed at by described second discharge nozzle, and described double roll mill is positioned at the below of the second discharge nozzle;

Described first charging line and the second charging line are parallel to each other, and the first charging line is mutually concordant with a higher end of the second charging line; Described first discharge nozzle is connected with described second feed pipe;

The two ends of described first charging line and the second charging line are respectively arranged with end cap, and the middle part of described end cap is provided with axis hole, and described first feeding spiro rod and the second feeding spiro rod all closely cooperate with axis hole;

Described motor is by Frequency Converter Control, and described motor direct-connected reductor and shaft coupling are also in transmission connection with a lower end of described first feeding spiro rod; A lower end of described motor, reductor, shaft coupling and the first feeding spiro rod is jointly rack-mount;

A higher end of described first feeding spiro rod is provided with the first gear, and a higher end of described second feeding spiro rod is provided with the second gear, and described first gear and the second gear engage each other transmission transmission, and gearratio is 1;

The pitch of described first feeding spiro rod is identical with the pitch of the second feeding spiro rod, and rotation direction is identical.

2. heat curing-type moulding compound process units according to claim 1, is characterized in that: the length of described first charging line is greater than the length of the second charging line.

3. heat curing-type moulding compound process units according to claim 1, is characterized in that: described first feed pipe is vertically arranged on the lower end of described first charging line.

4. the heat curing-type moulding compound process units according to claim 1 or 3, is characterized in that: the mouth of pipe place of described first feed pipe is provided with the first ring flange.

5. heat curing-type moulding compound process units according to claim 1, is characterized in that: the central axis of described first discharge nozzle is mutually vertical with the central axis of the first charging line.

6. heat curing-type moulding compound process units according to claim 1, is characterized in that: the central axis of described second feed pipe is mutually vertical with the central axis of the second charging line.

7. the heat curing-type moulding compound process units according to claim 1,5 or 6, is characterized in that: described first discharge nozzle and described second feed pipe are connected mutually through the second ring flange.

8. heat curing-type moulding compound process units according to claim 1, is characterized in that: described second discharge nozzle is flaring pipe.