PETG sheet extruder

Abstract

The utility model relates to the technical field of PETG (polyethylene terephthalate glycol), and discloses a PETG sheet extruder which comprises a feeding device, an extruding device is arranged at the front end of the feeding device, a rolling device matched with the extruding device for use is arranged at the front end of the extruding device, a feeding mechanism is arranged at the top of the feeding device, and a discharging mechanism is arranged at the bottom of the feeding device. And a supporting plate is mounted at the top of the feeding mechanism. According to the PETG sheet extruder, by pressing a control block downwards, a trapezoidal block moves downwards and makes contact with the top of a trapezoidal plate, the trapezoidal plate drives an insertion rod to be disengaged from the inner diameter of an insertion hole, and therefore a movable column can be taken out from the interior of a first through hole to replace and clean a magnet; according to the feeding device, the magnet is arranged in the feeding mechanism, so that a user can control the position of the magnet according to the number of materials in the feeding mechanism, metal particles are better adsorbed, and the problem that the metal particles enter the feeding device to cause flaws of sheets is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of PETG, in particular to a PETG sheet extruder. Background Art

[0002] PETG is a transparent plastic in brief, a non-crystalline copolyester. PETG products are highly transparent and tough, suitable for molding thick-walled transparent products. PETG has excellent processing and molding performance and can be designed into any shape according to the designer's intention. It can adopt traditional extrusion, injection molding, blow molding and vacuum forming methods. It can be widely used in the market of plates, sheets, high-performance shrink films, bottles and special-shaped materials. At the same time, it has excellent secondary processing performance and can also undergo conventional machining modifications.

[0003] A Chinese patent discloses a plastic sheet extrusion device (authorization announcement number CN204604835U). In this patented technology, a feed pipe is connected to an extrusion head, and smoke baffles are provided on the front and rear sides of the extrusion head to prevent smoke from going directly upward along the extrusion head and affecting product quality. The extrusion head is located between the two frontmost rollers, and the axes of the two rollers and the discharge port of the extrusion head are on the same plane. It has the characteristics of effectively removing smoke and dust.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when the existing extruder is feeding, small metal particles will exist in the plastic particles due to transportation reasons. The metal particles are difficult to melt. After entering the extruder, they will affect the extruded sheet, thereby causing defective products and reducing the yield rate. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the prior art lacks the function of filtering and screening metal particles. After the metal particles enter the extruder, defects will appear on the sheet. For this reason, we propose a PETG sheet extruder.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a PETG sheet extruder, comprising a feeding device, an extrusion device is arranged at the front end of the feeding device, a rolling device used in conjunction with the extrusion device is arranged at the front end of the extrusion device, a feeding mechanism is arranged at the top of the feeding device, a support plate is installed at the top of the feeding mechanism, a first through hole is opened on the surface of the support plate, a movable column is slidably connected inside the first through hole, a magnet is installed at the bottom of the movable column, a shell is fixedly connected to the top of the front end of the support plate, a second through hole is opened at the rear end of the shell, a plug rod is slidably connected inside the second through hole, a plurality of plug holes used in conjunction with the plug rod are opened on the surface of the movable column, a trapezoidal plate is fixedly connected to the front end of the plug rod, a third through hole is opened at the top of the shell, a control rod is slidably connected inside the third through hole, a trapezoidal block is fixedly connected to the bottom of the control rod, and a control block is fixedly connected to the top of the control rod.

[0007] Preferably, a first spring is fixedly connected to the front end of the trapezoidal plate, and a front end of the first spring is fixedly connected to the inner wall of the shell.

[0008] Preferably, a second spring is sleeved on the surface of the control rod, the top of the second spring is fixedly connected to the bottom of the control block, and the bottom of the second spring is fixedly connected to the top of the shell.

[0009] Preferably, first sliding blocks are fixedly connected to both sides of the trapezoidal plate, and first sliding grooves for use with the first sliding blocks are provided on both sides of the inner cavity of the shell.

[0010] Preferably, both sides of the trapezoidal block are fixedly connected with a second sliding block, and both sides of the inner cavity of the shell are provided with a second sliding groove used in conjunction with the second sliding block.

[0011] Preferably, a smoke extraction device is installed at the rear end of the rolling device, an air outlet duct is installed at the top of the smoke extraction device, a smoking duct is installed at the bottom of the smoke extraction device, and a cover is installed at the bottom of the smoking duct.

[0012] Preferably, the smoking pipe is a flue bellows.

[0013] Technical effects and advantages of the utility model:

[0014] In the utility model, by pressing the control block downward, the trapezoidal block moves downward and contacts the top of the trapezoidal plate, so that the trapezoidal plate drives the insertion rod to disengage from the inner diameter of the insertion hole, so that the movable column can be taken out from the inside of the first through hole to replace and clean the magnet. At the same time, by setting a plurality of insertion holes, the user can control the position of the magnet according to the amount of material inside the feeding mechanism, so as to better adsorb the metal particles, thereby preventing the metal particles from entering the interior of the feeding device and causing defects in the sheet material.

[0015] In the utility model, a smoke extraction device, an air outlet duct, a smoking duct and a cover body are arranged at the rear end of the rolling device to achieve the function of absorbing the waste gas of the sheet extruded by the extrusion device, and the waste gas is discharged through the pipe externally connected to the air outlet duct, so as to prevent the staff from inhaling a large amount of waste gas and being poisoned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 For this utility model Figure 2 A partial enlarged view of point B in the middle;

[0020] Figure 5 It is a partial cross-sectional structural schematic diagram of the utility model;

[0021] Figure 6 For this utility model Figure 5 A partial enlarged view of point C in the middle.

[0022] Legend: 1. Feeding device; 2. Extrusion device; 3. Rolling device; 4. Feeding mechanism; 5. Support plate; 6. First through hole; 7. Movable column; 8. Magnet; 9. Shell; 10. Second through hole; 11. Insert rod; 12. Insert hole; 13. Trapezoidal plate; 14. Third through hole; 15. Control rod; 16. Trapezoidal block; 17. Control block; 18. First spring; 19. Second spring; 20. First slider; 21. First slide slot; 22. Second slider; 23. Second slide slot; 24. Smoking device; 25. Air outlet duct; 26. Smoking duct; 27. Cover body. DETAILED DESCRIPTION

[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figure 1-Figure 3 As shown, the utility model provides a technical solution: a PETG sheet extruder, comprising a feeding device 1, an extrusion device 2 is arranged at the front end of the feeding device 1, a rolling device 3 used in conjunction with the extrusion device 2 is arranged at the front end of the extrusion device 2, a feeding mechanism 4 is arranged at the top of the feeding device 1, a support plate 5 is installed at the top of the feeding mechanism 4, a first through hole 6 is opened on the surface of the support plate 5, a movable column 7 is slidably connected inside the first through hole 6, a magnet 8 is installed at the bottom of the movable column 7, a shell 9 is fixedly connected to the top of the front end of the support plate 5, a second through hole 10 is opened at the rear end of the shell 9, a plug rod 11 is slidably connected inside the second through hole 10, a plurality of plug holes 12 used in conjunction with the plug rod 11 are opened on the surface of the movable column 7, a trapezoidal plate 13 is fixedly connected to the front end of the plug rod 11, a third through hole 14 is opened on the top of the shell 9, a control rod 15 is slidably connected inside the third through hole 14, and a control rod 15 is slidably connected to the control rod 15. A trapezoidal block 16 is fixedly connected to the bottom, and a control block 17 is fixedly connected to the top of the control rod 15. By arranging a magnet 8 inside the feeding mechanism 4, the magnet 8 can adsorb the metal particles. When the surface of the magnet 8 adsorbs too much, the support plate 5 is removed from the top of the feeding mechanism 4, and the control block 17 is pressed downward to make the control rod 15 drive the trapezoidal block 16 to move downward. The bottom of the trapezoidal block 16 is in contact with the top of the trapezoidal plate 13, so that the trapezoidal plate 13 drives the insertion rod 11 to move forward, so that the insertion rod 11 is disengaged from the inner diameter of the insertion hole 12, so that the movable column 7 can be taken out of the first through hole 6 to replace and clean the magnet 8. At the same time, by arranging a plurality of insertion holes 12, the user can control the position of the magnet 8 according to the amount of material inside the feeding mechanism 4, so as to better adsorb the metal particles, thereby preventing the metal particles from entering the interior of the feeding device 1 and causing defects in the sheet.

[0025] Reference Figure 3 As shown, in this embodiment: the front end of the trapezoidal plate 13 is fixedly connected with a first spring 18, and the front end of the first spring 18 is fixedly connected to the inner wall of the shell 9. The lifting force generated by the second spring 19 on the control block 17 limits the position of the trapezoidal block 16. When the insertion rod 11 fixes the movable column 7 to the inner diameter of the first through hole 6, the control rod 15 is prevented from moving downward due to gravity through the contact between the trapezoidal block 16 and the trapezoidal plate 13, so that the trapezoidal plate 13 drives the insertion rod 11 to disengage from the inner diameter of the insertion hole 12, so that the magnet 8 falls into the inside of the feeding mechanism 4.

[0026] Reference Figure 3As shown, in this embodiment: a second spring 19 is sleeved on the surface of the control rod 15, the top of the second spring 19 is fixedly connected to the bottom of the control block 17, and the bottom of the second spring 19 is fixedly connected to the top of the shell 9. When the insertion rod 11 is inserted into the inner diameter of the hole 12, the elastic force generated by the first spring 18 limits the position of the trapezoidal plate 13 and the insertion rod 11 to prevent the insertion rod 11 from escaping from the inner diameter of the hole 12.

[0027] Reference Figure 3 and Figure 6 As shown, in this embodiment: both sides of the trapezoidal plate 13 are fixedly connected with the first slider 20, and both sides of the inner cavity of the shell 9 are provided with a first slide groove 21 for use with the first slider 20. Through the use of the first slider 20 and the first slide groove 21, a large deviation can be prevented when the trapezoidal plate 13 drives the insertion rod 11 to move.

[0028] Reference Figure 6 As shown, in this embodiment: second sliders 22 are fixedly connected to both sides of the trapezoidal block 16, and second slide grooves 23 used in conjunction with the second sliders 22 are provided on both sides of the inner cavity of the shell 9. When the trapezoidal block 16 moves up and down, the sliding connection between the second slider 22 and the second slide groove 23 prevents the trapezoidal block 16 from tipping over when moving.

[0029] Reference Figure 4 and Figure 5 As shown, in this embodiment: a smoke extraction device 24 is installed at the rear end of the roller pressing device 3, an air outlet duct 25 is installed on the top of the smoke extraction device 24, a smoking duct 26 is installed at the bottom of the smoke extraction device 24, and a cover body 27 is installed at the bottom of the smoking duct 26. By arranging the smoke extraction device 24, the air outlet duct 25, the smoking duct 26 and the cover body 27 at the rear end of the roller pressing device 3, the function of absorbing the waste gas of the sheet extruded by the extrusion device 2 is achieved, and the waste gas is discharged through the pipe connected to the air outlet duct 25, so as to prevent the staff from inhaling a large amount of waste gas and being poisoned.

[0030] Reference Figure 4 As shown, in this embodiment: the smoking pipe 26 is a flue bellows, which has good ductility and plasticity. The user can adjust the position of the cover body 27 through the particularity of the smoking pipe 26, so as to better collect the exhaust gas.

[0031] The working principle of the utility model is as follows: a magnet 8 is arranged inside the feeding mechanism 4, and the magnet 8 has an adsorption effect on the metal particles. When the surface of the magnet 8 adsorbs too much, the support plate 5 is removed from the top of the feeding mechanism 4, and the control block 17 is pressed downward to make the control rod 15 drive the trapezoidal block 16 to move downward. The bottom of the trapezoidal block 16 contacts the top of the trapezoidal plate 13, so that the trapezoidal plate 13 drives the insertion rod 11 to move forward, so that the insertion rod 11 is disengaged from the inner diameter of the insertion hole 12, so that the movable column 7 can be taken out from the inside of the first through hole 6 to replace and clean the magnet 8. At the same time, a plurality of insertion holes 12 are arranged, so that the user can control the position of the magnet 8 according to the amount of material inside the feeding mechanism 4, so as to better The metal particles are adsorbed to prevent them from entering the interior of the feeding device 1 and causing defects in the sheet. The lifting force generated by the second spring 19 on the control block 17 limits the position of the trapezoidal block 16. When the insertion rod 11 fixes the movable column 7 to the inner diameter of the first through hole 6, the control rod 15 is prevented from moving downward due to gravity through the contact between the trapezoidal block 16 and the trapezoidal plate 13, so that the trapezoidal plate 13 drives the insertion rod 11 to disengage from the inner diameter of the insertion hole 12, causing the magnet 8 to fall into the feeding mechanism 4. When the insertion rod 11 is inserted into the inner diameter of the insertion hole 12, the elastic force generated by the first spring 18 limits the positions of the trapezoidal plate 13 and the insertion rod 11, preventing the insertion rod 11 from disengaging from the inner diameter of the insertion hole 12.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PETG sheet extruder, comprising a feeding device (1), characterized in that: The front end of the feeding device (1) is provided with an extrusion device (2), the front end of the extrusion device (2) is provided with a roller pressing device (3) used in conjunction with the extrusion device (2), the top of the feeding device (1) is provided with a feeding mechanism (4), the top of the feeding mechanism (4) is installed with a support plate (5), the surface of the support plate (5) is provided with a first through hole (6), the interior of the first through hole (6) is slidably connected with a movable column (7), the bottom of the movable column (7) is installed with a magnet (8), the top of the front end of the support plate (5) is fixedly connected with a shell (9), the shell ( A second through hole (10) is provided at the rear end of the housing (9), an insert rod (11) is slidably connected inside the second through hole (10), a plurality of insert holes (12) for use with the insert rod (11) are provided on the surface of the movable column (7), a trapezoidal plate (13) is fixedly connected to the front end of the insert rod (11), a third through hole (14) is provided at the top of the housing (9), a control rod (15) is slidably connected inside the third through hole (14), a trapezoidal block (16) is fixedly connected to the bottom of the control rod (15), and a control block (17) is fixedly connected to the top of the control rod (15).

2. A PETG sheet extruder according to claim 1, characterized in that: The front end of the trapezoidal plate (13) is fixedly connected to a first spring (18), and the front end of the first spring (18) is fixedly connected to the inner wall of the housing (9).

3. A PETG sheet extruder according to claim 1, characterized in that: A second spring (19) is sleeved on the surface of the control rod (15), the top of the second spring (19) is fixedly connected to the bottom of the control block (17), and the bottom of the second spring (19) is fixedly connected to the top of the housing (9).

4. A PETG sheet extruder according to claim 1, characterized in that: Both sides of the trapezoidal plate (13) are fixedly connected with a first sliding block (20), and both sides of the inner cavity of the shell (9) are provided with a first sliding groove (21) for use with the first sliding block (20).

5. A PETG sheet extruder according to claim 1, characterized in that: The trapezoidal block (16) is fixedly connected to a second sliding block (22) on both sides, and the inner cavity of the shell (9) is provided with a second sliding groove (23) for use with the second sliding block (22) on both sides.

6. A PETG sheet extruder according to claim 1, characterized in that: A smoke extraction device (24) is installed at the rear end of the rolling device (3), an air outlet duct (25) is installed at the top of the smoke extraction device (24), a smoking duct (26) is installed at the bottom of the smoke extraction device (24), and a cover body (27) is installed at the bottom of the smoking duct (26).

7. A PETG sheet extruder according to claim 6, characterized in that: The smoking pipe (26) is a flue corrugated pipe.

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