Polylactic acid production crystallization device

Abstract

The utility model relates to the technical field of crystallization devices, in particular to a polylactic acid production crystallization device which comprises a crystallization box, a material taking mechanism is installed on the box wall of the crystallization box, the material taking mechanism is composed of a fixing plate, an electric telescopic rod, an L-shaped plate, a material taking frame, a honeycomb plate, a lock body and a lock cylinder in a combined mode, the fixing plate is welded to the box wall of the crystallization box, and the electric telescopic rod is welded to the L-shaped plate. An electric telescopic rod is installed on the plate wall of the fixing plate, an L-shaped plate is installed at the output end of the electric telescopic rod, a material taking frame is welded to the other end of the L-shaped plate and located in the crystallization box, a honeycomb plate is rotationally connected to the bottom of the material taking frame through a hinge, and a lock cylinder is installed on the plate wall of the honeycomb plate; a lock body connected with a lock cylinder is mounted on the frame wall of the material taking frame, and after the material taking frame is moved out of the crystallization box and personnel separate the lock body from the lock cylinder, crystallized polylactic acid is discharged from the material taking frame, so that the crystallized polylactic acid is conveniently taken out, and the material taking efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crystallization devices, in particular to a crystallization device for polylactic acid production. Background Art

[0002] Lactic acid (PLA) belongs to aliphatic high-molecular compounds and is a new type of degradable high-molecular material, which has many advantages that cannot be compared with other high-molecular materials. First of all, its synthesis raw materials are derived from renewable crops, and after the resin is used up, it can be degraded into H2O and CO2 without polluting the environment; secondly, PLA is non-toxic and non-irritating, has good biocompatibility, and is widely used in medical suture lines, drug sustained-release materials, etc.

[0003] During the production of polylactic acid, the through-tank uses the crystallization method for production. When the existing polylactic acid production crystallization device is in production, the crystallized polylactic acid floats in the crystallization tank, and it is necessary for personnel to use a manual material-taking structure to take the polylactic acid. The material-taking by personnel is relatively slow, affecting the material-taking efficiency. And when the polylactic acid crystallizes, the additive and the polylactic acid raw material cannot be quickly fused, affecting the crystallization speed. For this reason, we propose a polylactic acid production crystallization device to facilitate the taking of the crystallized polylactic acid and improve the material-taking efficiency. Summary of the Utility Model

[0004] Aiming at the problems in the prior art, the utility model provides a crystallization device for polylactic acid production.

[0005] The technical solution adopted by the utility model to solve its technical problems is a crystallization device for polylactic acid production, including a crystallization tank. A material-taking mechanism is installed on the tank wall of the crystallization tank. The material-taking mechanism is composed of a fixing plate, an electric telescopic rod, an L-shaped plate, a material-taking frame, a honeycomb plate, a lock body and a lock core. The fixing plate is welded on the tank wall of the crystallization tank. The electric telescopic rod is installed on the plate wall of the fixing plate. The output end of the electric telescopic rod is installed with an L-shaped plate. The other end of the L-shaped plate is welded with a material-taking frame, and the material-taking frame is located inside the crystallization tank. The bottom of the material-taking frame is rotationally connected with a honeycomb plate through a hinge. The lock core is installed on the plate wall of the honeycomb plate. The lock body connected to the lock core is installed on the frame wall of the material-taking frame.

[0006] By adopting the above technical solution, when taking out the crystallized polylactic acid, since a material taking mechanism is installed at the box wall of the crystallization box, the material taking mechanism is composed of a fixing plate, an electric telescopic rod, an L-shaped plate, a material taking frame, a honeycomb plate, a lock body and a lock core. The material taking frame is located inside the crystallization box. The electric telescopic rod is controlled by a controller, so that the electric telescopic rod drives the L-shaped plate at its output end to move upward, and the L-shaped plate drives the material taking frame to move upward. Since the honeycomb plate is rotatably connected to the bottom of the material taking frame through a hinge, the liquid in the crystallization box is discharged through the honeycomb plate, and the crystallized polylactic acid is located at the top of the honeycomb plate. After the material taking frame is taken out of the crystallization box, after the operator separates the lock body from the lock core, the crystallized polylactic acid is discharged from the material taking frame, so as to facilitate taking out the crystallized polylactic acid and improve the material taking efficiency.

[0007] Specifically, it further includes a stirring mechanism, and the stirring mechanism is installed at the box wall of the crystallization box.

[0008] By adopting the above technical solution, the liquid in the crystallization box can be mixed by the stirring mechanism.

[0009] Specifically, the stirring mechanism is composed of a motor, a rotating shaft and blades. The motor is installed at the box wall of the crystallization box through bolts. The output end of the motor is installed with a rotating shaft, and the rotating shaft is located inside the crystallization box. Blades are fixedly installed on the shaft wall of the rotating shaft.

[0010] By adopting the above technical solution, when mixing the liquid in the crystallization box, since a mixing mechanism is installed at the box wall of the crystallization box and the stirring mechanism is composed of a motor, a rotating shaft and blades, the motor is controlled by a controller, so that the motor drives the rotating shaft at its output end to rotate. Since blades are installed on the shaft wall of the rotating shaft, the blades stir in the crystallization box to mix the liquid in the crystallization box.

[0011] Specifically, an openable valve pipe is connected and installed at the box wall of the crystallization box, and a bracket is installed at the bottom of the crystallization box.

[0012] By adopting the above technical solution, it is convenient to discharge the liquid in the crystallization box through the valve pipe.

[0013] Specifically, a controller for controlling the electric telescopic rod and the motor is installed at the box wall of the crystallization box.

[0014] By adopting the above technical solution, it is convenient to control the electric telescopic rod and the motor through the controller.

[0015] The beneficial effects of the present utility model:

[0016] (1) A poly(lactic acid) production crystallization device according to the present utility model. After the strap is wound around the backrest of the seat, the two straps are tied and connected by connecting the tail clips to each other, and the connecting plate is connected to the backrest of the seat. After the personnel rotate the camera monitoring head, through the rotation of the ball head connecting rod, the camera monitoring head monitors and shoots the rear-row personnel, and after shooting, the camera monitoring head transmits the signal to the wireless transmitter.

[0017] (2) A poly(lactic acid) production crystallization device according to the present utility model. The personnel adsorb the driving table through the suction cup to connect the bottom plate to the driving table. After adjusting the angle of the display by rotation, the threaded sleeve is screwed. The threaded sleeve rotates on the rod wall of the threaded rod, and the threaded sleeve squeezes the vertical plate to fix the display. The signal is transmitted to the wireless receiver through the wireless transmitter. After the wireless receiver receives the information picture, the wireless receiver transmits the signal to the display, so that the display displays the shooting picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 is the main figure of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the material taking mechanism of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the stirring mechanism of the present utility model;

[0022] In the figure: 1, crystallization tank; 2, material taking mechanism; 201, fixing plate; 202, electric telescopic rod; 203, L-shaped plate; 204, material taking frame; 205, honeycomb plate; 206, lock body; 207, lock core; 3, controller; 4, valve pipe; 5, stirring mechanism; 501, motor; 502, rotating shaft; 503, blade; 6, bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As an embodiment of the present utility model, such as Figure 1 、 Figure 2 and Figure 3As shown in the figure, a polylactic acid production crystallization device of the present utility model includes a crystallization tank 1. A material taking mechanism 2 is installed on the wall of the crystallization tank 1. The material taking mechanism 2 is composed of a fixing plate 201, an electric telescopic rod 202, an L-shaped plate 203, a material taking frame 204, a honeycomb plate 205, a lock body 206 and a lock core 207. The fixing plate 201 is welded on the wall of the crystallization tank 1. The electric telescopic rod 202 is installed on the wall of the fixing plate 201. The output end of the electric telescopic rod 202 is installed with the L-shaped plate 203. The other end of the L-shaped plate 203 is welded with the material taking frame 204, and the material taking frame 204 is located inside the crystallization tank 1. The bottom of the material taking frame (204) is rotatably connected with the honeycomb plate 205 through a hinge. The lock core 207 is installed on the wall of the honeycomb plate 205. The lock body 206 connecting the lock core 207 is installed on the frame wall of the material taking frame (204).

[0025] During use, since the material taking mechanism 2 is installed on the wall of the crystallization tank 1, and the material taking mechanism 2 is composed of the fixing plate 201, the electric telescopic rod 202, the L-shaped plate 203, the material taking frame 204, the honeycomb plate 205, the lock body 206 and the lock core 207, and the material taking frame 204 is located inside the crystallization tank 1. The electric telescopic rod 202 is controlled by the controller 3, so that the electric telescopic rod 202 drives the L-shaped plate 203 at its output end to move upward, and the L-shaped plate 203 drives the material taking frame 204 to move upward. Since the bottom of the material taking frame 204 is rotatably connected with the honeycomb plate 205 through a hinge, the liquid in the crystallization tank 1 is discharged through the honeycomb plate 205, and the crystallized polylactic acid is located on the top of the honeycomb plate 205. When the material taking frame 204 is removed from the crystallization tank 1, after the operator separates the lock body 206 from the lock core 207, the crystallized polylactic acid is discharged from the material taking frame 204, thus facilitating the removal of the crystallized polylactic acid and increasing the material taking efficiency.

[0026] As Figure 1 shown, it further includes a stirring mechanism 5, and the stirring mechanism 5 is installed on the wall of the crystallization tank 1.

[0027] During use, the liquid in the crystallization tank 1 can be mixed by the stirring mechanism 5.

[0028] As Figure 1 and Figure 3 shown, the stirring mechanism 5 is composed of a motor 501, a rotating shaft 502 and blades 503. The motor 501 is installed on the wall of the crystallization tank 1 through bolts. The output end of the motor 501 is installed with the rotating shaft 502, and the rotating shaft 502 is located inside the crystallization tank 1. The blades 503 are fixedly installed on the shaft wall of the rotating shaft 502.

[0029] During use, since a mixing mechanism is installed at the wall of the crystallization tank 1, the stirring mechanism 5 is composed of a motor 501, a rotating shaft 502 and blades 503. The motor 501 is controlled by the controller 3, so that the motor 501 drives the rotating shaft 502 at its output end to rotate. Since the blades 503 are installed on the shaft wall of the rotating shaft 502, the blades 503 stir the liquid in the crystallization tank 1 to mix the liquid in the crystallization tank 1.

[0030] As Figure 1 shown, a valve pipe 4 that can be opened is connected and installed at the wall of the crystallization tank 1, and a support 6 is installed at the bottom of the crystallization tank 1.

[0031] During use, the liquid in the crystallization tank 1 can be conveniently discharged through the valve pipe 4.

[0032] As Figure 1 shown, a controller 3 for controlling the electric telescopic rod 202 and the motor 501 is installed at the wall of the crystallization tank 1.

[0033] During use, the electric telescopic rod 202 and the motor 501 can be conveniently controlled through the controller 3.

[0034] The above shows and describes 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 embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A polylactic acid production crystallization device, characterized in that: The invention comprises a crystallization box (1), wherein a material taking mechanism (2) is installed on the box wall of the crystallization box (1), and the material taking mechanism (2) is composed of a fixed plate (201), an electric telescopic rod (202), an L-shaped plate (203), a material taking frame (204), a honeycomb plate (205), a lock body (206) and a lock core (207). The fixed plate (201) is welded on the box wall of the crystallization box (1), and the electric telescopic rod (202) is installed on the plate wall of the fixed plate (201). An L-shaped plate (203) is installed at the output end of the electric telescopic rod (202), a material taking frame (204) is welded to the other end of the L-shaped plate (203), and the material taking frame (204) is located in the crystallization box (1), and the bottom of the material taking frame (204) is rotatably connected to a honeycomb plate (205) through a hinge, a lock core (207) is installed on the plate wall of the honeycomb plate (205), and a lock body (206) connected to the lock core (207) is installed on the frame wall of the material taking frame (204).

2. A polylactic acid production crystallization device according to claim 1, characterized in that: It also comprises a stirring mechanism (5), and the stirring mechanism (5) is installed on the wall of the crystallization box (1).

3. A polylactic acid production crystallization device according to claim 2, characterized in that: The stirring mechanism (5) is composed of a motor (501), a rotating shaft (502) and blades (503). The motor (501) is installed on the wall of the crystallization box (1) by bolts. The output end of the motor (501) is installed with a rotating shaft (502), and the rotating shaft (502) is located in the crystallization box (1). The blades (503) are fixedly installed on the shaft wall of the rotating shaft (502).

4. A polylactic acid production crystallization device according to claim 1, characterized in that: An openable valve pipe (4) is installed in communication with the wall of the crystallization box (1), and a bracket (6) is installed at the bottom of the crystallization box (1).

5. A polylactic acid production crystallization device according to claim 1, characterized in that: A controller (3) for controlling the electric telescopic rod (202) and the motor (501) is installed on the wall of the crystallization box (1).

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