Accurate blanking and mixing device for polymerization production of 10 DEG C liquid terpene resin

Abstract

The utility model relates to a terpene resin polymerization production device, in particular to an accurate blanking and mixing device for polymerization production of 10 DEG C liquid terpene resin, which comprises a polymerization tank, a blending pipe, a metering tank, a baffle plate, a limiting slide rail, a servo motor, a rotating shaft, an electric push rod and a contact, the blending pipe is arranged at the upper part of the polymerization tank, and the metering tank is arranged in the blending pipe. A transverse limiting sliding rail is arranged at the lower end of the metering tank, a baffle is slidably connected into the limiting sliding rail to seal the metering tank, a weighing module is arranged in the baffle, a servo motor is fixedly connected to the middle of the distribution pipe, an output shaft of the servo motor is connected with a rotating shaft, an electric push rod is fixed to the lower end of the rotating shaft, and the telescopic end of the electric push rod is connected with a contact. The multiple metering tanks are arranged, different additives can be quantitatively prepared at the same time, the servo motors are controlled to drive the electric push rods to rotate to the corresponding metering tanks, the electric push rods are started to horizontally push the baffles, and the corresponding additives with specified metering are guided into the blending pipe.

Description

Technical Field

[0001] The utility model relates to a terpene resin polymerization production device, in particular to a precise feeding and mixing device for the polymerization production of 10°C liquid terpene resin. Background Technique

[0002] Liquid terpene resin is a low-molecular-weight linear polymer developed from selected turpentine as the basic raw material, refined, polymerized with Friedel-Crafts as the catalyst, and through processes such as hydrolysis, water washing, filtration, and distillation. It is suitable for formulating EVA, SIS, SBS hot-melt adhesives and other adhesives with good initial tack, high cold resistance, and soft performance. Liquid terpene resin has always played a particularly important role in adhesives, especially its unique cold resistance and good initial tack performance.

[0003] The number-average molecular weight of existing liquid terpene resin products > Mn600 and the weight-average molecular weight > Mw800. When used as glue at lower ambient temperatures (such as -20°C in the north), there is poor initial tack or complete curing and non-sticking, which limits the use of the product in a certain environment. After improvement, during the cationic polymerization of turpentine, 10% anhydrous ethanol or 15% terpineol is added as an inhibitor in terms of raw materials, and the polymerization process temperature of turpentine is also adjusted to 25 - 30°C for polymerization. Higher temperature polymerization can make the molecular weight distribution narrower and more uniform. Through a large number of experimental demonstrations and test data, it can be known that linear polymers with a number-average molecular weight < Mn400, a weight-average molecular weight < Mw400, and a glass transition temperature of about -35°C can be obtained by polymerizing at 25 - 30°C. This liquid terpene resin product with a number-average molecular weight < Mn400, a weight-average molecular weight < Mw400, and a glass transition temperature of - 35°C overcomes the technical problems of poor initial tack or complete curing and non-sticking when used as glue at ambient temperatures (such as -20°C in the north).

[0004] Therefore, for precise feeding at each time node or raw material temperature node, the existing traditional polymerization devices cannot perform quantitative feeding. Content of the Utility Model [[ID=第十八]]

[0005] In order to overcome the shortcoming that the existing polymerization device only sets a single feeding bin and cannot perform precise feeding of multiple materials, the utility model provides a precise feeding and mixing device for the polymerization production of 10°C liquid terpene resin.

[0006] A precise feeding and mixing device for the polymerization production of 10°C liquid terpene resin comprises a polymerization tank and a dispensing pipe. The dispensing pipe is provided on the upper part of the polymerization tank. An electronic valve is provided between the dispensing pipe and the polymerization tank. The device also comprises a metering tank, a baffle, a limit slide rail, a servo motor, a rotating shaft, an electric push rod and a contact. The dispensing pipe has a built-in metering tank, which is open at the top and bottom. A transverse limit slide rail is provided at the lower end of the metering tank. The baffle is slidably connected in the limit slide rail to close the metering tank. A weighing module is provided in the baffle, which weighs the material in the metering tank. The servo motor is fixed to the middle part of the dispensing pipe. The output shaft of the servo motor is connected to the rotating shaft. An electric push rod is fixed to the lower end of the rotating shaft. The telescopic end of the electric push rod is connected to the contact, and the contact can push the baffle.

[0007] As a preferred technical solution of the present invention, the number of the metering tanks is at least two, and the metering tanks are equally distributed in the mixing pipe.

[0008] As a preferred technical solution of the utility model, it also includes a magnet, which is respectively connected to the end of the baffle and the contact, and the two parts of the magnet attract each other.

[0009] As an optimal technical solution of the utility model, it also includes a vertical rod, an extrusion rod, a ring and a reset spring. The vertical rod is fixed to the upper part of the mixing pipe, the extrusion rod is slidably connected to the vertical rod and a reset spring is connected between the two. The bottom end of the extrusion rod is fixed to the ring, and the ring is in friction contact with the inner wall of the metering tank.

[0010] As a preferred technical solution of the present invention, a cover plate is also included. The upper part of the metering tank is provided with a cover plate for sealing.

[0011] As an optimal technical solution of the present invention, a funnel is also included, and a funnel is provided at a position corresponding to the upper opening of the metering tank.

[0012] As a preferred technical solution of the present invention, it also includes a display, which is arranged on the upper part of the mixing pipe and is connected to the weighing module.

[0013] As a preferred technical solution of the utility model, it also includes a sealing rubber ring, and a sealing rubber ring is provided at the bottom of the metering tank.

[0014] The beneficial effects of the utility model are as follows: multiple metering tanks are provided to prepare different additives simultaneously and quantitatively. By controlling the servo motor to drive the electric push rod to rotate to the corresponding metering tank, the electric push rod is turned on to push the baffle horizontally, so that the bottom of the metering tank is opened, and the corresponding specified metered additives are introduced into the mixing pipe and finally enter the polymerization tank to realize accurate unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the electric push rod and the rotating shaft of the utility model.

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the servo motor and weighing module of the utility model.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the return spring and the vertical rod of the utility model.

[0019] Among them: 1-polymerization tank, 2-blending pipe, 3-metering tank, 4-baffle, 401-weighing module, 5-limiting slide rail, 6-magnet, 7-servo motor, 8-rotating shaft, 9-electric push rod, 10-contact, 11-vertical pole, 12-extrusion rod, 13-ring, 14-reset spring, 15-cover plate, 16-funnel, 17-display, 18-sealing rubber ring. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0021] Example: A precise feeding and mixing device for the polymerization production of 10°C liquid terpene resin, such as Figure 1-Figure 4 As shown, it includes a polymerization tank 1 and a dispensing pipe 2. The dispensing pipe 2 is provided on the upper part of the polymerization tank 1. An electronic valve is provided between the dispensing pipe 2 and the polymerization tank 1. It also includes a metering tank 3, a baffle 4, a limit slide 5, a servo motor 7, a rotating shaft 8, an electric push rod 9 and a contact 10. Ten metering tanks 3 are built into the dispensing pipe 2. The metering tanks 3 are equally distributed in a ring shape. The metering tanks 3 are open at the top and bottom. A funnel 16 is provided at the corresponding position of the upper opening of the metering tank 3. A cover plate 15 is provided on the upper part of the metering tank 3 for sealing. A horizontal The limiting slide rail 5, the baffle 4 is slidably connected to the limiting slide rail 5 to close the metering tank 3, and a sealing rubber ring 18 is provided at the bottom of the metering tank 3 to improve the sealing between the metering tank 3 and the baffle 4. A weighing module 401 is provided in the baffle 4, and the weighing module 401 weighs the material in the metering tank 3. The servo motor 7 is fixed to the middle part of the mixing pipe 2, and the output shaft of the servo motor 7 is connected to the rotating shaft 8. The lower end of the rotating shaft 8 is fixed with an electric push rod 9, and the telescopic end of the electric push rod 9 is connected to the contact 10, which can push the baffle 4.

[0022] like Figure 2 and Figure 3 As shown, a magnet 6 is also included, which is respectively connected to the end of the baffle 4 and the contact 10, and the two parts of the magnet 6 attract each other. The arrangement of the magnet 6 enables the contact 10 to accurately dock with the baffle 4, so that the electric push rod 9 can accurately open the designated metering tank 3.

[0023] like Figure 4 As shown, it also includes a vertical rod 11, an extrusion rod 12, a ring 13 and a return spring 14. The vertical rod 11 is fixed to the upper part of the dispensing pipe 2, the extrusion rod 12 is slidably connected to the vertical rod 11 and a return spring 14 is connected between the two. The bottom end of the extrusion rod 12 is fixed to the ring 13, and the ring 13 is in friction contact with the inner wall of the metering tank 3.

[0024] like Figure 2 As shown, a display 17 is also included. The display 17 is arranged on the upper part of the mixing pipe 2 and is connected to the weighing module 401.

[0025] Working principle: Take out the cover plate 15, and then introduce the additives required for the terpene resin polymerization reaction into the metering tank 3 respectively. In this embodiment, 10 metering tanks 3 are provided. After the additives enter the metering tank 3, the additives in the metering tank 3 are weighed instantly by the weighing module 401, and the weight is quantitatively displayed through the display 17. Specifically, each metering tank 3 is numbered, and the corresponding weighing module 401 transmits the weight to the display 17 in the form of an electrical signal. The display 17 digitally displays the weight of the raw materials in each metering tank 3, so that the additives can be added quantitatively. When the raw materials in the polymerization tank 1 are mixed to the specified time point, the servo motor 7 is controlled to drive the rotating shaft 8 to rotate, and the electric push rod 9 at the lower end of the rotating shaft 8 will rotate to the corresponding metering tank 3. Starting the electric push rod 9 can push the baffle 4 horizontally to open the lower end of the metering tank 3. At this time, the additives in the corresponding metering tank 3 will enter the dispensing pipe 2, and finally the dispensing pipe 2 is controlled by the electronic valve to open and introduce the additives into the polymerization tank 1.

[0026] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A precise feeding and mixing device for the polymerization production of 10°C liquid terpene resin, comprising a polymerization tank (1) and a dispensing pipe (2), wherein the dispensing pipe (2) is provided on the upper portion of the polymerization tank (1), and characterized in that: The invention also comprises a metering tank (3), a baffle (4), a limiting slide rail (5), a servo motor (7), a rotating shaft (8), an electric push rod (9) and a contact (10). The metering tank (3) is built in the mixing pipe (2). The metering tank (3) is in an upper and lower opening shape. A transverse limiting slide rail (5) is provided at the lower end of the metering tank (3). The baffle (4) is slidably connected in the limiting slide rail (5) to seal the metering tank (3). A weighing module (401) is provided in the baffle (4). The weighing module (401) weighs the material in the metering tank (3). The servo motor (7) is fixed to the middle of the mixing pipe (2). The output shaft of the servo motor (7) is connected to the rotating shaft (8). The lower end of the rotating shaft (8) is fixed with an electric push rod (9). The telescopic end of the electric push rod (9) is connected to the contact (10). The contact (10) can push the baffle (4).

2. The precise feeding and mixing device for polymerization production of a 10°C liquid terpene resin according to claim 1, characterized in that: The number of the metering tanks (3) is at least two, and the metering tanks (3) are equally distributed in the mixing pipe (2).

3. The precise feeding and mixing device for polymerization production of a 10°C liquid terpene resin according to claim 2, characterized in that: It also includes a magnet (6), which is connected to the end of the baffle (4) and the contact (10) respectively, and the two parts of the magnet (6) attract each other.

4. The precise feeding and mixing device for polymerization production of a 10°C liquid terpene resin according to claim 3, characterized in that: The invention also comprises a vertical rod (11), an extrusion rod (12), a circular ring (13) and a return spring (14). The vertical rod (11) is fixedly connected to the upper part of the dispensing pipe (2). The extrusion rod (12) is slidably connected to the vertical rod (11) and a return spring (14) is connected between the vertical rod (11). The bottom end of the extrusion rod (12) is fixedly connected to the circular ring (13), and the circular ring (13) is in friction contact with the inner wall of the metering tank (3).

5. The precise feeding and mixing device for polymerization production of a 10°C liquid terpene resin according to claim 4, characterized in that: The metering tank (3) further comprises a cover plate (15), and the cover plate (15) is provided on the upper part of the metering tank (3) for sealing.

6. The precise feeding and mixing device for polymerization production of a 10°C liquid terpene resin according to claim 5, characterized in that: It also includes a funnel (16), which is provided at a position corresponding to the upper opening of the metering tank (3).

7. The precise feeding and mixing device for polymerization production of 10°C liquid terpene resin according to claim 6, characterized in that: It also includes a display (17), which is arranged on the upper part of the mixing pipe (2) and is connected to the weighing module (401).

8. The precise feeding and mixing device for polymerization production of 10°C liquid terpene resin according to claim 7, characterized in that: It also includes a sealing rubber ring (18), and the bottom of the metering tank (3) is provided with a sealing rubber ring (18).

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