Multi-layer co-extrusion PET (Polyethylene Terephthalate) sheet production line

Abstract

The utility model relates to the technical field of PET sheet production, and provides a multi-layer co-extrusion PET sheet production line which comprises a supporting frame, a supporting rod is arranged on the side face of the supporting frame, a stirring tank is arranged at the end, away from the supporting frame, of the supporting rod, and a feeding port is formed in the side face of the stirring tank. According to the stirring device disclosed by the utility model, the force for driving the rotating rod to rotate by the motor is matched with components such as a fixed rod, a stirring plate and a positioning rod in the stirring device, so that the effects that the rotating rod rotates to drive the rotating disc to rotate, the rotating disc rotates to drive the fixed rod to rotate, and the fixed rod rotates to drive the stirring plate to rotate are realized; according to the stirring tank, the effects of uniformly mixing materials in the stirring tank and simultaneously rolling the materials through the compression rollers to accelerate the filtering speed are achieved, the materials in the stirring tank can be efficiently and uniformly mixed, uniform distribution of each raw material is ensured, the quality of a final product is favorably improved, the time loss in the production process is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PET sheet production, and specifically, to a multi-layer co-extrusion PET sheet production line. Background Art

[0002] The extruders for producing PET sheets can be classified into continuous extrusion and discontinuous extrusion according to their functions. The plastic extruder is also a kind of plastic machinery. According to the included angle between the head material flow direction and the screw center line, the head is divided into an inclined head and a right-angle head. The outer shell of the head is fixed to the machine body with bolts. The mold in the head has a die core seat, which is fixed to the head inlet port with a nut. A die core is installed in front of the die core seat. There are holes in the centers of the die core and the die core seat for passing the core wire.

[0003] According to the publicly announced multi-layer co-extrusion PET sheet production line (publication number: CN202702634U), it includes a plastic extruder, a layer divider, an extrusion die head, a three-roll calender, a cooling and trimming machine, a tractor, and a sheet winding mechanism. The plastic extruder adopts a double-screw feeding structure; the surfaces of the two screws in the plastic extruder are polished surfaces treated by nitriding; the plastic extruder also includes a feeding barrel, and the inner surface of the feeding barrel is a polished surface treated by nitriding; a cast aluminum heating coil is provided on the feeding barrel, and a stainless steel heating cover is provided on the periphery of the cast aluminum heating coil. However, in the above device, through the cooperation of components such as the cooling and trimming machine, the tractor, and the sheet winding machine, it is difficult to achieve the effect of uniformly mixing the materials in the mixing tank and accelerating the filtration speed by rolling the materials with the pressing roller. It is difficult to efficiently and uniformly mix the materials in the mixing tank, and it is difficult to ensure the uniform distribution of each raw material, which is not conducive to improving the quality of the final product, increases the time loss in the production process, reduces the production efficiency, and needs to be improved. Summary of the Utility Model

[0004] The utility model provides a multi-layer co-extrusion PET sheet production line.

[0005] The technical solution of the utility model is as follows: A multi-layer co-extrusion PET sheet production line includes a support frame. A support rod is arranged on the side of the support frame. A mixing tank is arranged at one end of the support rod far away from the support frame. A feed port is opened on the side of the mixing tank.

[0006] A mixing device is arranged on the side of the support frame. The mixing device includes a motor. The motor is fixedly connected to the top of the mixing tank. The output shaft of the motor is fixedly connected to a rotating rod. A turntable is fixedly connected to the circumferential surface of the rotating rod. A fixed rod is fixedly connected to the bottom of the turntable. Stirring plates are fixedly connected to the circumferential surface of the fixed rod. A positioning rod is fixedly connected to the bottom of the rotating rod. A round rod is fixedly connected to the circumferential surface of the positioning rod. A pressing roller is fixedly connected to one end of the round rod. A material distributing structure is arranged on the circumferential surface of the pressing roller.

[0007] The material feeding structure includes a rotating rod, which is rotatably connected to the circumferential surface of the pressure roller. A scraping blade is fixedly connected to the circumferential surface of the rotating rod, and a positioning block is fixedly connected to the circumferential surface of the rotating rod. An installation block is fixedly connected to the inner wall of the mixing tank. The design of the pressure roller speeds up the filtration speed by pressing the material, reduces the time loss in the production process, improves the production efficiency, and enables the production line to complete more production tasks in a shorter time.

[0008] The installation block is located on the movement track of the positioning block. The number of installation blocks is set to several, and they are arranged in a circular array on the circumferential surface of the mixing tank. The design of the installation block enables the material on the top of the filter plate to be evenly paved, which not only improves the processing effect of the material but also creates better conditions for the subsequent processing and forming processes.

[0009] A quantitative feeding structure is arranged on the side of the support frame. The quantitative feeding structure includes a fixing plate, which is fixedly connected to the side of the stirring plate. A scraping plate is slidably connected to the inner wall of the mixing tank. An extrusion rod is fixedly connected to the top of the scraping plate. A rotating shaft is rotatably connected to the inner wall of the mixing tank. A baffle is fixedly connected to the circumferential surface of the rotating shaft, and a fixing block is fixedly connected to the side of the baffle.

[0010] The fixing block is located on the movement track of the extrusion rod, and the scraping plate is located on the movement track of the fixing plate. Through the linkage of the scraping plate and the fixing plate, the scraping plate can effectively scrape the material on the inner wall of the mixing tank, avoiding material waste and improving resource utilization rate.

[0011] A torsion spring is fixedly connected to the circumferential surface of the rotating rod. One end of the torsion spring away from the rotating rod is fixedly connected to the circumferential surface of the round rod. The initial state of the torsion spring is a relaxed state. The design of the torsion spring can make the scraping blade automatically reset, so as to move back and forth continuously.

[0012] A torsion spring A is fixedly connected to the circumferential surface of the rotating shaft. One end of the torsion spring A away from the rotating shaft is fixedly connected to the inner wall of the mixing tank. The designs of the extrusion rod and the torsion spring A enable the baffle to accurately control the opening and closing of the feeding port and achieve quantitative feeding.

[0013] The initial state of the torsion spring A is a relaxed state. A filter plate is fixedly connected to the inner wall of the mixing tank. The design of the torsion spring A can make the baffle automatically reset, reduce manual intervention, and achieve the function of quantitative feeding.

[0014] The working principle and beneficial effects of the present utility model are as follows:

[0015] 1. The force that drives the rotating rod to rotate through the motor of the present utility model cooperates with components such as the fixed rod, stirring plate, and positioning rod in the stirring device, realizing the function of driving the turntable to rotate through the rotation of the rotating rod, driving the fixed rod to rotate through the rotation of the turntable, and then driving the stirring plate to rotate through the rotation of the fixed rod. It achieves the effect of uniformly mixing the materials in the stirring tank while accelerating the filtration speed by rolling the materials with the pressure roller, can efficiently and uniformly mix the materials in the stirring tank, ensure the uniform distribution of each raw material, contribute to improving the quality of the final product, reduce the time loss in the production process, and improve the production efficiency.

[0016] 2. The force that drives the fixed plate to rotate through the rotation of the stirring plate of the present utility model cooperates with components such as the rotating shaft, torsion spring, and positioning block in the stirring device, realizing the function of driving the extrusion rod to rotate through the rotation of the scraping plate, then driving the fixed block to rotate by extruding the fixed block through the rotation of the extrusion rod, making the fixed block drive the baffle to rotate and open the feeding port. When the extrusion rod moves away from the fixed block, the baffle returns to its original position through the elastic force of the torsion spring A, achieving the effect of scraping the materials on the inner wall of the stirring tank by the scraping plate while quantitatively feeding the materials, avoiding the waste of materials, improving the resource utilization rate, contributing to maintaining the stability of the production process, and ensuring the consistency of product quality.

[0017] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments.

[0019] Figure 1 It is a three-dimensional external structure schematic diagram of the present utility model;

[0020] Figure 2 It is a three-dimensional semi-sectional structure schematic diagram at the pressure roller of the present utility model;

[0021] Figure 3 It is a three-dimensional enlarged structure schematic diagram at the motor of the present utility model;

[0022] Figure 4 It is a three-dimensional semi-sectional structure schematic diagram at the baffle of the present utility model;

[0023] Figure 5 It is a three-dimensional enlarged structure schematic diagram at the feeding port of the present utility model.

[0024] In the figure: 101, support frame; 102, mixing tank; 103, support rod; 104, feed inlet; 2, mixing device; 201, motor; 202, rotating rod; 203, turntable; 204, fixed rod; 205, mixing plate; 206, positioning rod; 207, round rod; 208, pressure roller; 209, scraping blade; 210, rotating rod; 211, mounting block; 212, fixing plate; 213, scraping plate; 214, extrusion rod; 215, filter plate; 216, baffle; 217, rotating shaft; 218, torsion spring; 219, fixing block; 220, positioning block; 221, torsion spring A. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0026] Embodiment 1

[0027] Such as Figures 1 to 5As shown in the figure, this embodiment proposes a multi-layer co-extruded PET sheet production line, including a support frame 101. A support rod 103 is arranged on the side of the support frame 101. A stirring tank 102 is arranged at one end of the support rod 103 away from the support frame 101. A feed port 104 is opened on the side of the stirring tank 102; a stirring device 2 is arranged on the side of the support frame 101. The stirring device 2 includes a motor 201. The motor 201 is fixedly connected to the top of the stirring tank 102. The output shaft of the motor 201 is fixedly connected with a rotating rod 202. A turntable 203 is fixedly connected to the circumferential surface of the rotating rod 202. A fixed rod 204 is fixedly connected to the bottom of the turntable 203. Stirring plates 205 are fixedly connected to the circumferential surface of the fixed rod 204. A positioning rod 206 is fixedly connected to the bottom of the rotating rod 202. A round rod 207 is fixedly connected to the circumferential surface of the positioning rod 206. A pressure roller 208 is fixedly connected to one end of the round rod 207. A material distributing structure is arranged on the circumferential surface of the pressure roller 208. The material distributing structure includes a rotating rod 210. The rotating rod 210 is rotatably connected to the circumferential surface of the pressure roller 208. A scraping blade 209 is fixedly connected to the circumferential surface of the rotating rod 210. A positioning block 220 is fixedly connected to the circumferential surface of the rotating rod 210. A mounting block 211 is fixedly connected to the inner wall of the stirring tank 102. The design of the pressure roller 208 speeds up the filtration speed by pressing the material, reduces the time loss in the production process, improves the production efficiency, and enables the production line to complete more production tasks in a shorter time. The mounting block 211 is located on the movement track of the positioning block 220. The number of the mounting blocks 211 is set to be several, and they are arranged in a circumferential array on the circumferential surface of the stirring tank 102. The design of the mounting block 211 enables the material on the top of the filter plate 215 to be evenly paved, which not only improves the processing effect of the material, but also creates better conditions for the subsequent processing and forming processes.

[0028] In this embodiment, the present application drives the rotating rod 202 to rotate through the motor 201, then drives the turntable 203 to rotate through the rotation of the rotating rod 202, drives the fixed rod 204 to rotate through the rotation of the turntable 203, and then drives the stirring plate 205 to rotate through the rotation of the fixed rod 204, achieving the effect of evenly mixing the materials in the mixing tank 102. The rotating rod 202 rotates to drive the positioning rod 206 to rotate, and then the positioning rod 206 rotates to drive the round rod 207 to rotate. The round rod 207 rotates to drive the pressure roller 208 to rotate, achieving the effect of accelerating the filtration speed by rolling the materials with the pressure roller 208. The pressure roller 208 rotates to drive the rotating rod 210 to rotate, and then the rotating rod 210 rotates to drive the scraping blade 209 to rotate. The rotating rod 210 rotates to drive the positioning block 220 to rotate. When the positioning block 220 moves to the side of the mounting block 211, the positioning block 220 will be squeezed to drive the rotating rod 210 to rotate, thereby driving the scraping blade 209 to rotate. When the positioning block 220 moves away from the mounting block 211, the scraping blade 209 is reset by the elastic force of the torsion spring 218, achieving the effect of leveling the materials on the top of the filter plate 215.

[0029] Embodiment 2

[0030] As Figures 1 to 5As shown in the figure, based on the same concept as in the above-mentioned Embodiment 1, this embodiment also proposes a second embodiment. A quantitative feeding structure is provided on the side of the support frame 101. The quantitative feeding structure includes a fixing plate 212, and the fixing plate 212 is fixedly connected to the side of the stirring plate 205. A scraping plate 213 is slidably connected to the inner wall of the stirring tank 102. The top of the scraping plate 213 is fixedly connected to a pressing rod 214. A rotating shaft 217 is rotatably connected to the inner wall of the stirring tank 102. A baffle 216 is fixedly connected to the circumferential surface of the rotating shaft 217, and a fixing block 219 is fixedly connected to the side of the baffle 216. The fixing block 219 is located on the movement trajectory of the pressing rod 214, and the scraping plate 213 is located on the movement trajectory of the fixing plate 212. Through the linkage of the scraping plate 213 and the fixing plate 212, the scraping plate 213 can effectively scrape the materials on the inner wall of the stirring tank 102, avoiding waste of materials and improving the resource utilization rate. A torsion spring 218 is fixedly connected to the circumferential surface of the rotating rod 210. One end of the torsion spring 218 away from the rotating rod 210 is fixedly connected to the circumferential surface of the round rod 207. The initial state of the torsion spring 218 is a relaxed state. The design of the torsion spring 218 can make the scraping blade 209 automatically reset, so as to continuously reciprocate. A torsion spring A221 is fixedly connected to the circumferential surface of the rotating shaft 217. One end of the torsion spring A221 away from the rotating shaft 217 is fixedly connected to the inner wall of the stirring tank 102. The design of the pressing rod 214 and the torsion spring A221 enables the baffle 216 to accurately control the opening and closing of the feeding port 104, realizing quantitative feeding. The initial state of the torsion spring A221 is a relaxed state. A filter plate 215 is fixedly connected to the inner wall of the stirring tank 102. The design of the torsion spring A221 can make the baffle 216 automatically reset, reducing manual intervention and realizing the function of quantitative feeding.

[0031] In this embodiment, the rotation of the stirring plate 205 drives the fixing plate 212 to rotate, and then the rotation of the fixing plate 212 drives the scraping plate 213 to rotate, realizing the function of scraping the materials on the inner wall of the stirring tank 102. The rotation of the scraping plate 213 drives the pressing rod 214 to rotate, and then the rotation of the pressing rod 214 squeezes the fixing block 219 to rotate, so that the fixing block 219 drives the baffle 216 to rotate, opening the feeding port 104. When the pressing rod 214 moves away from the fixing block 219, the baffle 216 is reset by the elastic force of the torsion spring A221, realizing the function of quantitative feeding.

[0032] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. Multi-layer co-extrusion PET sheet production line, characterized in that, It comprises a support frame (101), a support rod (103) is arranged on the side of the support frame (101), a stirring tank (102) is arranged at one end of the support rod (103) away from the support frame (101), and a feed port (104) is opened on the side of the stirring tank (102); A stirring device (2) is arranged on the side of the support frame (101), and the stirring device (2) comprises a motor (201), the motor (201) is fixedly connected to the top of the stirring tank (102), the output shaft of the motor (201) is fixedly connected to a rotating rod (202), the circumferential surface of the rotating rod (202) is fixedly connected to a rotating disk (203), the bottom of the rotating disk (203) is fixedly connected to a fixing rod (204), the circumferential surface of the fixing rod (204) is fixedly connected to a stirring plate (205), the bottom of the rotating rod (202) is fixedly connected to a positioning rod (206), the circumferential surface of the positioning rod (206) is fixedly connected to a round rod (207), one end of the round rod (207) is fixedly connected to a pressing roller (208), and the circumferential surface of the pressing roller (208) is provided with a material shifting structure.

2. The multi-layer co-extrusion PET sheet production line according to claim 1, wherein The material shifting structure comprises a rotating rod (210), the rotating rod (210) being rotatably connected to the circumferential surface of the pressure roller (208), a scraper (209) being fixedly connected to the circumferential surface of the rotating rod (210), a positioning block (220) being fixedly connected to the circumferential surface of the rotating rod (210), and a mounting block (211) being fixedly connected to the inner wall of the stirring tank (102).

3. The multi-layer co-extrusion PET sheet production line according to claim 2, characterized in that, The mounting blocks (211) are located on the motion track of the positioning block (220), and the number of the mounting blocks (211) is set to be a plurality and arranged in a circular array on the circumferential surface of the stirring tank (102).

4. The multi-layer co-extrusion PET sheet production line according to claim 3, characterized in that, A quantitative material discharge structure is provided on the side of the support frame (101), the quantitative material discharge structure comprising a fixed plate (212), the fixed plate (212) being fixedly connected to the side of the stirring plate (205), a scraper (213) being slidably connected to the inner wall of the stirring tank (102), a squeeze rod (214) being fixedly connected to the top of the scraper (213), a rotating shaft (217) being rotatably connected to the inner wall of the stirring tank (102), a baffle (216) being fixedly connected to the circumferential surface of the rotating shaft (217), and a fixed block (219) being fixedly connected to the side of the baffle (216).

5. The multi-layer co-extrusion PET sheet production line according to claim 4, characterized in that, The fixed block (219) is located on the movement track of the extrusion rod (214), and the scraper (213) is located on the movement track of the fixed plate (212).

6. The multi-layer co-extrusion PET sheet production line according to claim 5, wherein, A torsion spring (218) is fixedly connected to the circumferential surface of the rotating rod (210), one end of the torsion spring (218) away from the rotating rod (210) is fixedly connected to the circumferential surface of the round rod (207), and the initial state of the torsion spring (218) is a relaxed state.

7. The multi-layer co-extrusion PET sheet production line according to claim 6, characterized in that, A torsion spring A (221) is fixedly connected to the circumferential surface of the rotating shaft (217), and one end of the torsion spring A (221) away from the rotating shaft (217) is fixedly connected to the inner wall of the stirring tank (102).

8. The multi-layer co-extrusion PET sheet production line according to claim 7, wherein, The initial state of the torsion spring A (221) is a relaxed state, and a filter plate (215) is fixedly connected to the inner wall of the stirring tank (102).

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