CN114571630A - Foaming master batch preparation equipment and preparation method - Google Patents

Abstract

The invention belongs to the field of foaming agents, in particular to a preparation equipment and a preparation method of foamed master batches; it includes a double-screw extrusion device, a cooling device, a transmission adjustment device and a shredding device; the transmission adjustment device includes a rotating shaft , frame and motor; the motor is fixedly connected to the frame; the output shaft of the motor is fixedly connected to the rotating shaft; a support plate is arranged between the two transmission shafts; the support plate is fixedly connected to the frame At least two rollers are sleeved on the rotating shaft; connecting rods are arranged on both sides of the rollers; fixed blocks are alternately distributed between the two connecting rods; one end of the fixed block is fixed with the connecting rods The other end is fixedly connected with the roller; the movement of the roller is controlled by the connecting rod to cooperate with the support plate, so that the material strip will not be stretched and separated from the transmission adjustment device, and the material strip will not be attached during the transmission process. Thus, the work efficiency of producing the foamed masterbatch is improved, and the quality of the foamed masterbatch is also improved.

Description

A kind of foaming master batch preparation equipment and preparation method

technical field

The invention belongs to the field of foaming agents, in particular to a preparation equipment and a preparation method of foaming master batches.

Background technique

Foaming masterbatch is an endothermic closed-cell chemical nucleating foaming agent, which is suitable for the production of automobile components, fine products, household products, electrical appliance shells and other products; the foaming masterbatch can eliminate shrinkage marks during product injection. , and the appearance of the product is not affected, and the bending or deformation caused by the internal stress and shrinkage after injection molding is reduced, and the use of foaming agents can reduce the pressure holding time during injection molding, shorten the injection molding cycle, and improve production efficiency. In the process of foaming masterbatch, it is necessary to knead the raw materials of foaming masterbatch and various additives, and then plasticize into strips through a twin-screw extruder, and finally cool and chop to form foaming masterbatch; After the pellets are formed into strips from the twin-screw extrusion device and extruded, the strips need to pass through the cooling device and then move to the shredding device. However, during the movement, the strips will vibrate, causing the strips to undergo It is elongated under the action of vibration and its own gravity, and the elongated material strip will be separated from the drum in the cooling pool, so the elongated material strip will affect the transmission efficiency, thereby affecting the work efficiency of producing foamed masterbatch, and in During the transmission process, because the material strips are not limited, the material strips will stick together during the transmission process, so that the quality of the foamed masterbatch will be affected when the foamed masterbatch is chopped.

For example, a Chinese patent with an application number of CN106883490A discloses a micro-foaming master batch and a preparation method thereof and a refrigerator foam plate, the micro-foaming master batch and its preparation method and the refrigerator foam plate, using The endothermic inorganic foaming agent sodium bicarbonate is compounded with citric acid and the exothermic organic foaming agent azodimethylamine in an appropriate proportion, so that the heat absorbed and released during the decomposition reaction of the foaming agent is as much as possible Balance, to ensure the stability of the melt viscosity of the raw material when the foaming agent is decomposed, so that the foamed cells are more uniform and stable, and at the same time have a larger foaming porosity. The micro-foamed material obtained by foaming and extrusion molding has improved thermal insulation effect, good surface effect, and has the advantages of small pore size, uniform cell distribution and light weight; After the twin-screw extrusion device is shaped into a strip and extruded, the strip will vibrate during the movement, so that the strip will be stretched under the action of vibration and its own gravity, and the elongated strip will be When the roller is separated from the cooling pool, the elongation of the material strip will affect the transfer efficiency, thereby affecting the working efficiency of producing the foamed masterbatch, and the material strip is not limited during the transmission process. During the process, they will fit together, so that when the foamed masterbatch is chopped, the quality of the foamed masterbatch will be affected, thus causing the limitation of this scheme.

In view of this, in order to overcome the above-mentioned technical problems, the present invention proposes a preparation equipment and a preparation method of foamed masterbatch, which solves the above-mentioned technical problems.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention proposes a preparation equipment and a preparation method for the foamed masterbatch. During the movement of the strip, the strip will be supported by the support plate, and will not be elongated due to vibration and its own gravity, so that the strip will not leave the transmission adjustment device and pass the connecting rod during the transmission process. Control the movement of the rollers to limit the position of the material strips, so that the material strips will not stick together during the transmission process, thereby improving the work efficiency of producing the foamed masterbatch, and at the same time improving the quality of the foamed masterbatch.

The technical solution adopted by the present invention to solve the technical problem is as follows: the equipment for preparing foamed masterbatches described in the present invention includes a double-screw extrusion device, a cooling device, a transmission adjustment device and a shredding device; the transmission adjustment device is located between the cooling device and the shredding device; the transmission adjustment device includes a rotating shaft, a frame and a motor; the motor is fixedly connected to the frame; the output shaft of the motor is fixedly connected to one end of the rotating shaft; the There is a rotational connection between the rotating shaft and the frame; the motor and the rotating shaft are symmetrically distributed on the frame, and the motor and the rotating shaft are located at both ends of the frame; a support plate is arranged between the two rotating shafts; The support plate is fixedly connected to the frame; at least two rollers are sleeved on the rotating shaft; connecting rods are arranged on both sides of the rollers; the frame is provided with a through groove; connecting rods are connected; fixed blocks are alternately distributed between the corresponding two connecting rods; one end of the fixed blocks is fixedly connected with the connecting rod, and the other end is fixedly connected with the roller;

When working, after the foamed masterbatch is formed into a strip from the twin-screw extrusion device and extruded, during the movement process, the strip will vibrate, so that the strip will be pulled under the action of vibration and its own gravity. The long and elongated strips will leave the drum in the cooling pool, so the elongated strips will affect the transfer efficiency, thereby affecting the work efficiency of producing foamed masterbatches, and during the transmission process, due to the lack of alignment of the strips Limit the position so that the material strips will stick together during the transmission process, so that the quality of the foamed masterbatch will be affected when the foamed masterbatch is chopped;

Therefore, the staff put the raw material of the foamed masterbatch into the twin-screw extruder, and after heating and stirring, the raw material of the foamed masterbatch was extruded from the twin-screw extruder, and molded into strips, and then the strips were transported. Enter the cooling pool, and then the cooling pool cools the strips, and then the strips are transported by the rollers in the cooling pool into the transmission adjustment device. At this time, the operation of the motor in the transmission adjustment device drives the rotating shaft to rotate, and the rotating shaft drives the strips to shredding. The direction of the device moves, and then the staff controls the roller set on the rotating shaft to move by moving the connecting rod to limit the strip on the rotating shaft to prevent the adjacent strips from sticking together. After coming out of the cooling device and passing through the first rotating shaft in the transmission adjustment device, it will move to the second rotating shaft through the support plate. At this time, the support plate supports the material strip to prevent the material strip from being vibrated and its own gravity. The influence is elongated, and then the material strip is driven by the second rotating shaft into the shredding device to chop the material strip, thereby completing the preparation of the foamed masterbatch;

The invention controls the movement of the roller through the connecting rod to cooperate with the support plate, so that the material strip of the foamed masterbatch will be supported by the support plate, so that the material strip will not be elongated and thus separated from the transmission adjustment device and in the process of transmission. In the middle, the rod is controlled by the roller to limit the position of the material strip, so that the material strip will not stick together during the transmission process, thereby improving the work efficiency of producing the foamed masterbatch, and also improving the quality of the foamed masterbatch. .

Preferably, a circular hole is formed on the support plate; a sponge pad is fixed on the side of the support plate away from the ground; during operation, after the strip comes out of the cooling pool, water will remain on the surface of the strip The sponge pad is fixed on the support plate to clean the water droplets on the surface of the strip, and because the sponge pad is a flexible material, the strip will not be rubbed when it is cooled by the cooling pool and then passes through the support plate. The strip is broken, and at the same time, the support plate is provided with a circular hole, so that the water absorbed in the sponge pad can drip to the ground through the circular hole, so that the support plate can clean the water droplets on the surface of the strip, and then the sponge pad can be stabilized through the circular hole. work effect.

Preferably, the shape of the contact surface between the sponge pad and the material strip is wavy; during operation, when the material strip passes through the sponge pad on the support plate, since the shape of the contact surface between the sponge pad and the material strip is wavy, the material will be wavy. After the strip passes through the first rotating shaft, it will enter the valley of the sponge pad, so that the sponge pad can guide and limit the strip. The water droplets will gather at the trough of the sponge pad, which can lubricate the strip, reduce the friction between the strip and the sponge pad, and make the strip pass through the sponge pad more smoothly.

Preferably, springs are fixedly connected to both end surfaces of the rollers; a splint is fixedly connected to the other end of the springs; during operation, when the staff moves the rollers through the connecting rods to limit the position of the material strip, the springs on the end surfaces of the rollers are And the splint can play a buffering role, so that the material strip will not be damaged during the movement of the roller. At the same time, because the splint can better limit the position of the material strip, and can also limit the position of the material strip of different specifications, thus The effect of limiting the position of the material strip is improved, thereby improving the applicability of the transmission adjustment device.

Preferably, a circular groove is formed corresponding to the sliding connection between the connecting rod and the frame; the circular groove is communicated with the through groove; a cylindrical pin is slidably connected in the circular groove; the connecting rod corresponds to the circular groove There is a through hole at the position of the connecting rod; after the connecting rod drives the through hole to move, the cylindrical pin can be inserted into the through hole; when working, the staff controls the movement of the roller by moving the connecting rod, corresponding to the sliding connection between the connecting rod and the frame. A circular groove is provided, and then a cylindrical pin is arranged in the circular groove, so that the cylindrical pin can be inserted into the circular groove and pass through the through hole on the connecting rod during the working process, so as to prevent the connecting rod from driving the rollers to move together during the working process. Thus, the stability of the roller during the working process can be ensured, so that the limit position of the roller on the material strip is not affected during the working process, and at the same time, the movement of the connecting rod can be controlled, and the stability of the connecting rod and the roller can be improved.

A preparation method of foamed master batch, the preparation method is suitable for the above-mentioned foamed master batch preparation equipment, and the steps of the processing preparation method are as follows:

S1: After mixing the polyisobutylene flakes with auxiliary agents such as foaming agents, add them to a high-speed mixer and heat to 70°C, and keep stirring for 15 minutes; then put the stirred and mixed raw materials into the twin-screw extrusion device, and the extrusion temperature is controlled at 90～100℃;

S2: The extruded strip enters the cooling device for cooling, and after the cooling is completed, the strip is transported to the transmission adjustment device by the roller in the cooling pool;

S3: The operation of the motor in the transmission adjustment device drives the rotating shaft to rotate, and then moves the connecting rod in the transmission adjustment device to drive the rollers to move, so that the rollers limit the strip, and then the strip passes through the first transmission adjustment device. After one rotating shaft, it enters the second rotating shaft in the transmission adjustment device through the support plate, and then the rotating shaft in the transmission adjustment device is driven to move to the shredding device, and finally the material strips are shredded by the shredding device to form foam Masterbatch finished product.

The beneficial effects of the present invention are as follows:

1. In the present invention, the transmission adjusting device controls the movement of the roller to cooperate with the support plate, so that the material strip of the foamed masterbatch will be supported by the support plate, so that the material strip will not be separated from the transmission adjustment device and will not be transmitted during transmission. In the process, the rod is controlled by the connecting rod to control the movement of the roller to limit the position of the material strip, so that the material strip will not stick together during the transmission process, which will improve the work efficiency of producing the foamed masterbatch, and then improve the foaming masterbatch. the quality of.

2. In the present invention, when the transmission adjusting device moves the roller through the connecting rod to limit the position of the material strip, the spring and the splint on the end face of the roller can play a buffering role, so that the material strip will not be damaged during the movement of the roller, and It can also limit the position of the material strips of different specifications, thereby improving the position-limiting effect of the material strips, thereby improving the applicability of the transmission adjustment device.

3. In the present invention, the transmission adjustment device is fixed with a sponge pad on the support plate to clean the water droplets on the surface of the material strip. At the same time, the support plate is provided with a circular hole so that the water absorbed in the sponge pad can drip to the ground through the circular hole. falling, so that the support plate can clean the water droplets on the surface of the strip. Thus, the working effect of the sponge pad can be stabilized.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and embodiments.

Fig. 1 is the perspective view of the transmission adjustment device in the present invention;

Fig. 2 is the connection perspective view of roller and connecting rod in Fig. 1;

Fig. 3 is the enlarged view of A place in Fig. 2;

Fig. 4 is the connection schematic diagram of connecting rod and frame in Fig. 1;

Fig. 5 is the preparation method flow chart of foamed master batch of the present invention;

In the figure: 1. Cooling device; 2. Transmission adjustment device; 3. Chopping device; 4. Rack; 5. Motor; 6. Rotating shaft; 7. Roller; 8. Connecting rod; 9. Fixed block; 10. Support plate; 11, sponge pad; 12, spring; 13, round hole; 14, splint; 15, sponge block; 16, round groove; 17, cylindrical pin.

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in FIG. 1, and is only for the convenience of describing the present invention and simplified description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention;

As shown in Fig. 1 to Fig. 5 , the equipment for preparing foamed masterbatches according to the present invention includes a double-screw extrusion device, a cooling device 1, a transmission adjustment device 2 and a chopping device 3; the transmission adjustment device 2 Located between the cooling device 1 and the shredding device 3; the transmission adjustment device 2 includes a rotating shaft 6, a frame 4 and a motor 5; the motor 5 is fixed on the frame 4; the output shaft of the motor 5 is connected to the One end of the rotating shaft 6 is fixedly connected; the rotating shaft 6 and the frame 4 are rotationally connected; the motor 5 and the rotating shaft 6 are symmetrically distributed on the frame 4, and the motor 5 and the rotating shaft 6 are located in the frame 4 The two ends of the rotating shaft 6 are provided with a support plate 10; the support plate 10 is fixed on the frame 4; the rotating shaft 6 is sleeved with at least two rollers 7; the rollers 7 are provided with connecting rods 8 on both sides; the frame 4 is provided with through grooves; the connecting rods 8 are slidably connected in the through grooves; the corresponding two connecting rods 8 are alternately distributed with fixed blocks 9; One end of the fixed block 9 is fixedly connected with the connecting rod 8, and the other end is fixedly connected with the roller 7;

When working, after the foamed masterbatch is formed into a strip from the twin-screw extrusion device and extruded, during the movement process, the strip will vibrate, so that the strip will be pulled under the action of vibration and its own gravity. The long and elongated strips will leave the drum in the cooling pool, so the elongated strips will affect the transfer efficiency, thereby affecting the work efficiency of producing foamed masterbatches, and during the transmission process, due to the lack of alignment of the strips Limit the position so that the material strips will stick together during the transmission process, so that the quality of the foamed masterbatch will be affected when the foamed masterbatch is chopped;

Therefore, the staff put the raw material of the foamed masterbatch into the twin-screw extruder, and after heating and stirring, the raw material of the foamed masterbatch was extruded from the twin-screw extruder, and molded into strips, and then the strips were transported. Enter the cooling pool, and then the cooling pool cools the strips, and then the strips are transported by the rollers in the cooling pool into the transmission adjustment device 2. At this time, the motor 5 in the transmission adjustment device 2 runs to drive the rotating shaft 6 to rotate, and the rotating shaft 6 drives The material strip moves in the direction of the shredding device 3, and then the staff controls the roller 7 sleeved on the rotating shaft 6 to move by moving the connecting rod 8, so as to limit the position of the material strip on the rotating shaft 6 to prevent adjacent The material strips are attached together. When the material strips come out of the cooling device 1 and pass through the first rotating shaft 6 in the transmission adjustment device 2, they will move to the second rotating shaft 6 through the support plate 10. At this time, the support plate 10 is aligned with the material. The strips are supported to prevent the strips from being stretched under the influence of vibration and their own gravity, and then the strips are driven by the second rotating shaft 6 and enter the shredding device 3 to chop the strips, thereby completing the foaming masterbatch. preparation;

In the present invention, the connecting rod 8 controls the movement of the roller 7 to cooperate with the support plate 10, so that the material strip of the foamed masterbatch will be supported by the support plate 10, so that the material strip will not be elongated and separated from the transmission adjustment device 2. And in the process of transmission, the movement of the roller 7 is controlled by the connecting rod 8 to limit the position of the material strip, so that the material strip will not stick together during the transmission process, thereby improving the work efficiency of producing the foamed masterbatch, and at the same time improving the quality of the foam masterbatch.

As an embodiment of the present invention, the support plate 10 is provided with a circular hole 13; the side of the support plate 10 away from the ground is fixed with a sponge pad 11; during operation, the material strips come out of the cooling pool After that, water droplets will remain on the surface of the material strip. The sponge pad 11 is fixed on the support plate 10 to clean the water droplets on the surface of the material strip. Moreover, since the sponge pad 11 is a flexible material, the material strip is cooled by the cooling pool. When passing through the support plate 10 again, the material strip will not be broken due to friction. At the same time, the support plate 10 is provided with a circular hole 13 so that the water absorbed in the sponge pad 11 can drip to the ground through the circular hole 13, so that the support plate 10 is The water droplets on the surface of the material strip can be cleaned, and the working effect of the sponge pad 11 can be stabilized through the circular holes 13 .

As an embodiment of the present invention, the shape of the contact surface between the sponge pad 11 and the material strip is wavy; during operation, when the material strip passes through the sponge pad 11 on the support plate 10, due to the contact between the sponge pad 11 and the material strip The shape of the contact surface is wavy, so that the material strip will enter the valley of the sponge pad 11 after passing through the first rotating shaft 6, so that the sponge pad 11 can guide and limit the material strip. 11 When the water droplets on the surface of the material strip are processed, the processed water droplets will gather at the valley of the sponge pad 11, so that the material strip can be lubricated and the friction between the material strip and the sponge pad 11 can be reduced, so that the material strip can be lubricated. It can pass through the sponge pad 11 more smoothly.

As an embodiment of the present invention, the two ends of the roller 7 are fixed with a spring 12; the other end of the spring 12 is fixed with a splint 14; when working, the worker moves the roller 7 through the connecting rod 8 to align the material When the strip is limited, the spring 12 on the end face of the roller 7 and the splint 14 can play a buffering role, so that the strip will not be damaged during the movement of the roller 7. At the same time, the splint 14 can better protect the strip. It can also limit the position of material strips of different specifications, thereby improving the position-limiting effect on the material strips, thereby improving the applicability of the transmission adjusting device 2 .

As an embodiment of the present invention, a circular groove 16 is correspondingly formed at the sliding connection between the connecting rod 8 and the frame 4; the circular groove 16 is communicated with the through groove; the circular groove 16 is slidably connected with a cylindrical pin 17; the connecting rod 8 is provided with a through hole at the position corresponding to the circular groove 16; after the connecting rod 8 drives the through hole to move, the cylindrical pin 17 can be inserted into the through hole; The rod 8 controls the movement of the roller 7, a circular groove 16 is correspondingly opened at the sliding connection between the connecting rod 8 and the frame 4, and then a cylindrical pin 17 is arranged in the circular groove 16, so that the cylindrical pin 17 can be inserted into the circular groove during the working process. 16 and pass through the through hole on the connecting rod 8, so as to prevent the connecting rod 8 from driving the rollers 7 to move together during the working process, thereby ensuring the stability of the rollers 7 during the working process, so that the rollers 7 can prevent the material strips during the working process. The limited position of the connecting rod 8 will not be affected, and at the same time, the movement of the connecting rod 8 can be controlled, and the stability of the connecting rod 8 and the roller 7 can be improved.

A preparation method of foamed master batch, the preparation method is suitable for the above-mentioned foamed master batch preparation equipment, and the steps of the processing preparation method are as follows:

S1: After mixing the polyisobutylene flakes with auxiliary agents such as foaming agents, add them to a high-speed mixer and heat to 70°C, and keep stirring for 15 minutes; then put the stirred and mixed raw materials into the twin-screw extrusion device, and the extrusion temperature is controlled at 90～100℃;

S2: The extruded strip enters the cooling device 1 for cooling, and after the cooling is completed, the strip is transported to the transmission adjustment device 2 by the roller in the cooling pool;

S3: The motor 5 in the transmission adjustment device 2 runs to drive the rotating shaft 6 to rotate, and then the connecting rod 8 in the transmission adjustment device 2 is moved to drive the roller 7 to move, so that the roller 7 limits the strip, and then the strip passes through After the first rotating shaft 6 in the transmission adjustment device 2, it enters the second rotating shaft 6 in the transmission adjustment device 2 through the support plate 10, and then the rotating shaft 6 in the transmission adjustment device 2 is driven to move to the shredding device 3 , and finally the material strips are shredded by the shredding device 3 to form the finished product of the foamed masterbatch.

The specific workflow is as follows:

In the present invention, the staff puts the foamed masterbatch raw material into the twin-screw extruder, and after heating and stirring, extrudes the foamed masterbatch raw material from the twin-screw extruder, and shapes it into strips, and then the strips It is transported into the cooling pool, and then the cooling pool cools the strips, and then the strips are transported by the rollers in the cooling pool into the transmission adjustment device 2. At this time, the motor 5 in the transmission adjustment device 2 runs to drive the rotating shaft 6 to rotate, and the rotating shaft 6. Drive the material strip to move in the direction of the shredding device 3, and then the staff controls the roller 7 sleeved on the rotating shaft 6 to move by moving the connecting rod 8, so as to limit the position of the material strip on the rotating shaft 6 to prevent the Adjacent material strips are attached together. When the material strips come out of the cooling device 1 and pass through the first rotating shaft 6 in the transmission adjustment device 2, they will move to the second rotating shaft 6 through the support plate 10. At this time, the support plate 10 The material strip is supported to prevent the material strip from being stretched under the influence of vibration and its own gravity, and then the material strip is driven by the second rotating shaft 6 and enters the shredding device 3 to chop the material strip, thereby completing the foaming. In the preparation of the masterbatch, after the strip comes out of the cooling pool, there will be water droplets on the surface of the strip. The sponge pad 11 is fixed on the support plate 10 to clean the water droplets on the surface of the strip. The pad 11 is a flexible material. When the material strip is cooled by the cooling pool and then passes through the support plate 10, the material strip will not be broken due to friction. At the same time, the support plate 10 is provided with a circular hole 13 so that the water absorbed in the sponge pad 11 can pass through. The circular hole 13 drops to the ground, so that the support plate 10 can clean the water droplets on the surface of the material strip, and then the working effect of the sponge pad 11 can be stabilized through the circular hole 13. Since the contact surface between the sponge pad 11 and the material strip is wavy, the material strip will enter the wave valley of the sponge pad 11 after passing through the first rotating shaft 6, so that the sponge pad 11 can guide the material strip. At the same time, when the sponge pad 11 processes the water droplets on the surface of the material strip, the processed water droplets will gather at the trough of the sponge pad 11, so that the material strip can be lubricated, and the material strip and sponge can be reduced. The friction between the pads 11 enables the material strip to pass through the sponge pad 11 more smoothly. When the staff moves the roller 7 through the connecting rod 8 to limit the material strip, the spring 12 on the end face of the roller 7 and the splint 14 can lift up. With the function of buffering, the material strip will not be damaged during the movement of the roller 7. At the same time, the splint 14 can better limit the position of the material strip, and can also limit the position of the material strip of different specifications, thereby improving the performance of the material. The limiting effect on the material strip further improves the applicability of the transmission adjustment device 2. When the worker controls the movement of the roller 7 by moving the connecting rod 8, a circular groove 16 is correspondingly opened at the sliding connection between the connecting rod 8 and the frame 4. , and then a cylindrical pin 17 is arranged in the circular groove 16, so that the cylindrical pin 17 can be inserted into the circular groove 16 and pass through the through hole on the connecting rod 8 during the working process, thereby preventing the connecting rod 8 from driving the rollers 7 together during the working process. Move, and then can ensure the stability of the roller 7 in the working process, so that the working process The limit of the material strip by the roller 7 will not be affected, and at the same time, the movement of the connecting rod 8 can be controlled, and the stability of the connecting rod 8 and the roller 7 can be improved.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A foaming master batch preparation device comprises a double-screw extrusion device, a cooling device (1), a transmission adjusting device (2) and a chopping device (3); the conveying and adjusting device (2) is positioned between the cooling device (1) and the chopping device (3); the method is characterized in that: the transmission adjusting device (2) comprises a rotating shaft (6), a rack (4) and a motor (5); the motor (5) is fixedly connected to the rack (4); an output shaft of the motor (5) is fixedly connected with one end of the rotating shaft (6); the rotating shaft (6) is rotatably connected with the rack (4); the motor (5) and the rotating shaft (6) are symmetrically distributed on the rack (4), and the motor (5) and the rotating shaft (6) are positioned at two ends of the rack (4); a supporting plate (10) is arranged between the two transmission shafts; the supporting plate (10) is fixedly connected to the rack (4); at least two rollers (7) are sleeved on the rotating shaft (6); connecting rods (8) are arranged on two sides of the roller (7); a through groove is formed in the rack (4); a connecting rod (8) is connected in the through groove in a sliding manner; fixed blocks (9) are distributed between the two corresponding connecting rods (8) in a staggered manner; one end of the fixed block (9) is fixedly connected with the connecting rod (8), and the other end of the fixed block is fixedly connected with the roller (7).

2. The foaming masterbatch preparation equipment of claim 1, characterized in that: a round hole (13) is formed in the support plate (10); a sponge cushion (11) is fixedly connected to one surface of the supporting plate (10) far away from the ground.

3. The foaming masterbatch preparation equipment of claim 2, characterized in that: the shape of the contact surface of the spongy cushion (11) and the material strip is wave-shaped.

4. The foaming masterbatch preparation equipment of claim 1, characterized in that: two end faces of the roller (7) are fixedly connected with springs (12); the other end of the spring (12) is fixedly connected with a clamping plate (14).

5. The foaming masterbatch preparation equipment of claim 1, characterized in that: a circular groove (16) is correspondingly formed at the sliding connection part of the connecting rod (8) and the rack (4); the circular groove (16) is communicated with the through groove; a cylindrical pin (17) is connected in the circular groove (16) in a sliding manner; a round hole (13) is formed in the position, corresponding to the round groove (16), of the connecting rod (8); after the connecting rod (8) drives the round hole to move, the cylindrical pin (17) can be inserted into the round hole.

6. A method for preparing a foaming master batch, which is suitable for the equipment for preparing the foaming master batch according to any one of claims 1 to 5, and is characterized in that: the preparation method comprises the following steps:

s1: mixing the polyisobutylene flakes with auxiliary agents such as foaming agent, adding into a high-speed stirrer, heating to 70 ℃, and keeping stirring for 15 min; then, feeding the stirred and mixed raw materials into a double-screw extrusion device, and controlling the extrusion temperature to be 90-100 ℃;

s2: the extruded material strips enter a cooling device (1) for cooling, and the material strips are conveyed to a transmission adjusting device (2) by a roller in a cooling pool after cooling;

s3: motor (5) operation in transmission adjusting device (2) drives axis of rotation (6) and rotates, then connecting rod (8) in the removal transmission adjusting device (2) drive gyro wheel (7) and move, it is spacing to make gyro wheel (7) carry out the material strip, then the material strip is behind first axis of rotation (6) in process transmission adjusting device (2), get into second axis of rotation (6) in transmission adjusting device (2) through backup pad (10), then the drive of axis of rotation (6) removes to comminution device (3) in transmission adjusting device (2), last material strip is chopped up through comminution device (3), form foaming master batch finished product.

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