PLA (polylactic acid) full-biodegradable lamination extrusion production line

Abstract

The utility model provides a PLA (polylactic acid) full-biodegradation spraying film extrusion production line, belongs to the technical field of spraying film production, and solves the technical problems that traction equipment cannot be correspondingly regulated and controlled according to the current spraying film state in the traction and stretching process of the existing spraying film, and the spraying film is easy to damage during stretching. The PLA full-biodegradation lamination extrusion production line comprises a feeding assembly, a film forming assembly, a traction assembly and a finished product winding assembly, the feeding assembly comprises a feeding conveying belt used for feeding and a feeding hopper fixedly connected to the portion, at one end of the feeding conveying belt, of a frame body, and a film forming mechanism comprises a rack, an extruder fixed in the rack and a molding press fixed in the rack; the input end of the molding press is connected with the output end of the extruder, a feeding hopper is fixed to the input end of the extruder, and an opening of the feeding hopper is located in the bottom of the other end of the feeding conveying belt. The film spraying traction device has the advantages that corresponding real-time adjustment is carried out according to the film spraying traction state, and the film forming effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production technology field of lamination, and relates to a lamination extrusion production line, in particular to a PLA full biodegradable lamination extrusion production line. BACKGROUND

[0002] Lamination is a composite film body coated on the material surface by plastic particles through a casting machine, and the main feature is that the composite material can prevent oil, is relatively waterproof and can be heat sealed. Traditional lamination is made of polyethylene or polypropylene material, which is the root cause of "white pollution". Biodegradable materials, as a new type of material, have good biodegradability and processability. At present, the use of biodegradable materials in the field of lamination paper is mainly focused on PLA (poly lactic acid).

[0003] In the prior art, the lamination cannot be adjusted in real time according to the current state of the lamination during traction and stretching, which may cause damage to the lamination during stretching. Therefore, the staff need to continuously observe the lamination and stop the machine to adjust the traction device when the lamination is stacked or wrinkled, so as to spread the lamination. The operation is very cumbersome and increases the workload of the staff. UTILITY MODEL CONTENT

[0004] The utility model aims at the above problems existing in the prior art and provides a PLA full biodegradable lamination extrusion production line. The technical problem to be solved by the utility model is how to realize real-time adjustment according to the traction state of the lamination and improve the film forming effect.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] The PLA full biodegradable lamination extrusion production line comprises a feeding assembly, a film forming assembly, a traction assembly and a finished product winding assembly. The feeding assembly comprises a feeding conveyor belt for feeding and a feeding hopper fixedly connected to the frame at one end of the feeding conveyor belt.

[0007] The film forming mechanism comprises a rack, an extruder fixed in the rack and a compression molding machine fixed in the rack. The input end of the compression molding machine is connected to the output end of the extruder, and the input end of the extruder is fixedly provided with a feeding hopper. The opening of the feeding hopper is located at the bottom of the other end of the feeding conveyor belt.

[0008] The traction mechanism comprises a traction frame fixed on the rack and a stabilizing frame fixedly connected to the traction frame. The bottom of the stabilizing frame is fixedly connected with a traction seat, and three control rods are rotatably connected to the traction seat. Three sliding seats are slidably connected to the three control rods, and three traction rollers are rotatably connected to the three sliding seats. The traction frame is provided with a control assembly for real-time control of the three sliding seats.

[0009] The finished product winding assembly is a winding machine.

[0010] The working principle of the utility model is: the granular raw material received by the feeding hopper can be conveyed through the feeding conveyor belt, and the granular raw material is conveyed to the feeding hopper, enters the extruder for melting, and the melted raw material is extruded into the film press, the film forming plasticity work is carried out by the film press, the film is pulled and stretched by the height difference between the three traction rollers, the film forming appearance and product qualification are improved, and the film is wound by the winding machine, and the overall film production is completed.

[0011] The traction seat is fixedly connected with three servo motors, and the output ends of the three servo motors are coaxially fixedly connected with the rotating parts of the corresponding control rods.

[0012] With the above structure, the swing amplitude of the corresponding control plate can be controlled by the three servo motors, so that the adjacent spacing of the three traction rollers is controlled, and the detailed control of the film stretching degree is improved.

[0013] The control assembly comprises three drive motors fixedly connected in the three control rods, three drive screws rotatably connected in the three control rods, the three drive motors are coaxially fixedly connected with the corresponding drive screws, and the three drive screws are screwedly connected with the corresponding sliding seats.

[0014] With the above structure, the drive motor drives the drive screw to rotate, the sliding seat is driven by the drive screw to move, and the corresponding traction roller is further driven by the sliding seat to move up and down, so that the height difference between the three traction rollers is adjusted.

[0015] The stable frame is fixedly connected with a pair of probes.

[0016] With the above structure, the film state during traction and stretching can be observed by the probes, so that the film stretching degree, surface wrinkle condition and the like can be understood.

[0017] The communication controller is fixedly connected in the stable frame, the two probes are electrically connected with the communication controller, all the electromechanical devices in the traction mechanism are electrically connected with the communication controller, and the communication controller is in communication connection with the terminal device.

[0018] With the above structure, the communication controller can receive the observation condition of the probes and transmit it to the terminal device for processing, and through the processing result, the communication controller drives the corresponding electromechanical devices to realize real-time adjustment according to the film traction state, and improve the film forming effect.

[0019] Compared with the prior art, the PLA full-biodegradable film extrusion production line has the following advantages:

[0020] 1, through the communication controller to receive the observed situation of the probe, and transmit to the terminal device for processing, and through the processing result, the communication controller drives the corresponding electromechanical device, realizes according to the film traction state corresponding real-time adjustment, improves the film forming effect.

[0021] 2, the granular raw material received by the feeding hopper is conveyed by the feeding conveyor belt, and the granular raw material is conveyed to the feeding hopper, and the granular raw material is melted in the extruder, and the melted raw material is extruded into the film pressing machine, and the film pressing machine is formed into a film plastic work, and the film is pulled and stretched by the height difference between the three traction rollers, the film is improved in appearance and product qualification, and the film is wound by the winding machine to complete the whole film production. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a structural schematic diagram of the utility model.

[0023] Fig. 2 is a structural schematic diagram of the traction assembly in the utility model.

[0024] Fig. 3 is a structural schematic diagram of the inside of the traction seat in the utility model.

[0025] In the drawing, 1, the feeding conveyor belt; 2, the feeding hopper; 3, the rack; 4, the extruder; 5, the die pressing machine; 6, the feeding hopper; 7, the stabilizing frame; 8, the traction seat; 9, the control rod; 10, the sliding seat; 11, the traction roller; 12, the servo motor; 13, the driving motor; 14, the driving screw; 15, the probe; 16, the communication controller; 17, the winding machine; 18, the traction frame. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the utility model and is further described in conjunction with the drawings, but the utility model is not limited to these embodiments.

[0027] As shown in Figs. 1-3 PLA full biodegradable film extrusion production line, including feeding assembly, film forming assembly, traction assembly, finished product winding assembly, feeding assembly includes feeding conveyor belt 1 for feeding, and the upper fixed connection of the frame body at one end of the feeding conveyor belt 1 is provided with feeding hopper 2;

[0028] The film forming mechanism includes a rack 3, an extruder 4 fixed in the rack 3, and a die pressing machine 5 fixed in the rack 3, the input end of the die pressing machine 5 is connected with the output end of the extruder 4, and the input end of the extruder 4 is fixed with a feeding hopper 6, and the opening of the feeding hopper 6 is located at the bottom of the other end of the feeding conveyor belt 1;

[0029] The traction mechanism comprises a traction frame 18 fixed on the frame 3, a stabilizing frame 7 fixedly connected on the traction frame 18, a traction seat 8 fixedly connected at the bottom of the stabilizing frame 7, three regulating rods 9 rotatably connected on the traction seat 8, three sliding seats 10 slidably connected on the three regulating rods 9, and three traction rollers 11 rotatably connected on the three sliding seats 10; and the traction frame 18 is provided with a regulating assembly for regulating the three sliding seats 10 in real time.

[0030] The finished product winding assembly is a winding machine 17.

[0031] The granular raw material received by the feeding hopper 2 through the feeding conveyor belt 1 can be conveyed to the feeding hopper 6, melted in the extruder 4 from the feeding hopper 6, and then extruded into the film pressing machine 5 for film forming plasticity, and then the film is stretched by the height difference between the three traction rollers 11, the film forming appearance and product qualification are improved, and then the film is wound by the winding machine 17 to complete the overall production of the film.

[0032] The traction seat 8 is fixedly connected with three servo motors 12, and the output ends of the three servo motors 12 are coaxially fixedly connected with the rotating portions of the corresponding regulating rods 9.

[0033] With the above structure, the swing amplitude of the corresponding regulating plate can be controlled by the three servo motors 12, so as to regulate the adjacent spacing of the three traction rollers 11 and improve the detailed regulation of the film stretching degree.

[0034] The regulating assembly comprises three drive motors 13 fixedly connected in the three regulating rods 9, three drive screws 14 rotatably connected in the three regulating rods 9, the three drive motors 13 are coaxially fixedly connected with the corresponding drive screws 14, and the three drive screws 14 are threadedly connected with the corresponding sliding seats 10.

[0035] With the above structure, the drive screw 14 can be rotated by the drive motor 13, the sliding seat 10 can be moved by the drive screw 14, and the corresponding traction roller 11 can be moved up and down by the sliding seat 10, so as to adjust the height difference between the three traction rollers 11.

[0036] The stabilizing frame 7 is fixedly connected with a pair of probes 15.

[0037] With the above structure, the film state during stretching can be observed by the probes 15, so as to understand the film stretching degree, surface wrinkle condition, etc.

[0038] The communication controller 16 is fixed in the stable frame 7, both of the probes 15 are electrically connected with the communication controller 16, and all of the electromechanical devices in the traction mechanism are electrically connected with the communication controller 16, and the communication controller 16 is in communication connection with the terminal equipment.

[0039] With the above structure, the situation observed by the probe 15 can be received by the communication controller 16 and transmitted to the terminal equipment for processing, and according to the processing result, the corresponding electromechanical device is driven by the communication controller 16, so that the real-time adjustment according to the film traction state is realized, and the film forming effect is improved.

[0040] The working principle of the utility model is: the granular raw materials received by the feeding hopper 2 are conveyed by the feeding conveyor belt 1, and the granular raw materials are conveyed to the feeding hopper 6, then the granular raw materials are melted in the extruder 4 through the feeding hopper 6, and the melted raw materials are extruded and conveyed to the film pressing machine, then the film forming plasticity work is carried out by the film pressing machine 5, then the film is traction stretched by the height difference between the three traction rollers 11, the film forming appearance and product qualification are improved, then the film is wound by the winding machine 17, the whole film production is completed, and in the traction stretching process, the situation observed by the probe 15 can be received by the communication controller 16 and transmitted to the terminal equipment for processing, and according to the processing result, the corresponding electromechanical device is driven by the communication controller 16, so that the real-time adjustment according to the film traction state is realized, and the film forming effect is improved.

[0041] In summary, the granular raw materials received by the feeding hopper 2 are conveyed by the feeding conveyor belt 1, and the granular raw materials are conveyed to the feeding hopper 6, then the granular raw materials are melted in the extruder 4 through the feeding hopper 6, and the melted raw materials are extruded and conveyed to the film pressing machine, then the film forming plasticity work is carried out by the film pressing machine 5, then the film is traction stretched by the height difference between the three traction rollers 11, the film forming appearance and product qualification are improved, then the film is wound by the winding machine 17, and the whole film production is completed.

[0042] The specific embodiments described herein are merely illustrative of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present utility model or exceeding the scope defined by the appended claims.

Claims

1. A PLA full-biodegradable film extrusion production line, comprising a feeding assembly, a film-forming assembly, a traction assembly, and a finished product winding assembly, characterized in that, The feeding assembly comprises a feeding conveying belt (1) for feeding, an upper feeding hopper (2) fixedly connected with the frame body at one end of the feeding conveying belt (1); The film forming assembly comprises a rack (3), an extruder (4) fixed in the rack (3), and a compression molding machine (5) fixed in the rack (3), wherein the input end of the compression molding machine (5) is connected with the output end of the extruder (4), the input end of the extruder (4) is fixedly connected with a feeding hopper (6), and the opening of the feeding hopper (6) is located at the bottom of the other end of the feeding conveying belt (1); The traction assembly comprises a traction frame (18) fixed on the rack (3), and a stabilizing frame (7) fixedly connected with the traction frame (18), wherein the bottom of the stabilizing frame (7) is fixedly connected with a traction seat (8), three control rods (9) are rotatably connected with the traction seat (8), three sliding seats (10) are slidably connected with the control rods (9), and three traction rollers (11) are rotatably connected with the sliding seats (10); the traction frame (18) is provided with a control assembly for controlling the three sliding seats (10) in real time. The finished product winding assembly is a winding machine (17).

2. The PLA fully biodegradable lamination film extrusion production line according to claim 1, characterized in that, The traction seat (8) is fixedly connected with three servo motors (12), and the output ends of the three servo motors (12) are coaxially fixedly connected with the rotating parts of the corresponding control rods (9).

3. The PLA fully biodegradable lamination film extrusion production line according to claim 1, characterized in that, The control assembly comprises a driving motor (13) fixedly connected in each of the three control rods (9), and a driving screw (14) rotatably connected in each of the three control rods (9), wherein the three driving motors (13) are coaxially fixedly connected with the corresponding driving screws (14), and the three driving screws (14) are threadedly connected with the corresponding sliding seats (10).

4. The PLA fully biodegradable lamination film extrusion production line according to claim 1, characterized in that, A pair of probes (15) are fixed on the stabilizing frame (7).

5. The PLA fully biodegradable lamination film extrusion production line according to claim 4, characterized in that, A communication controller (16) is fixed in the stabilizing frame (7), the two probes (15) are electrically connected with the communication controller (16), all the electromechanical devices in the traction mechanism are electrically connected with the communication controller (16), and the communication controller (16) is in communication connection with a terminal device.

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