Plastic insulation board extrusion forming device

Abstract

The invention discloses a plastic insulation board extrusion forming device which comprises an extruding machine and a cooling mechanism, the cooling mechanism comprises a water tank, the outer surface of the water tank is fixedly connected with a support, a body of the support is fixedly connected with a water pipe in a penetrating mode, a body of the water pipe is slidably connected with a piston rod in a penetrating mode, and the piston rod is sleeved with a fixing ring. The outer surface of the fixing ring is fixedly connected with the interior of the water pipe, a circular plate is arranged outside the piston rod and drives the piston rod to reciprocate through eccentric motion, and the interior of the water pipe is communicated with a one-way valve and a spray head in a penetrating mode. One end of the one-way valve and one end of the spray head are both located between a piston of the piston rod and the outer surface of the fixing ring, relates to the technical field of plastic extrusion equipment, and solves the problems that when an existing plastic forming extrusion device is used, the cooling and shaping effect is poor, and the drying effect of the surface of a product is poor.

Description

Technical Field

[0001] This invention relates to the field of plastic extrusion equipment technology, specifically to a plastic insulation board extrusion molding device. Background Technology

[0002] Plastic products need to be cooled and shaped by liquid water after extrusion, and their surfaces also need to be dried after shaping. Generally, drying is used, which results in low efficiency. A PVC plastic molding extrusion device with application number CN202310986075.0 includes an extruder, a water tank, and a frame. By rotating a pulley, the rough surface acting on the plastic tube is circulated. The dryer will dry the damp rough surface, thereby achieving continuous wiping and dehydration of the plastic tube and improving the dehydration effect of the plastic tube surface.

[0003] While this device possesses the aforementioned advantages, it still suffers from the following drawbacks in practical use: Firstly, when using water cooling, both the amount and speed of water significantly affect the shaping effect of the plastic material. Secondly, the small contact area and short contact time between the rough surface and the plastic product surface result in poor absorption. Furthermore, if a large amount of water adheres to the product surface, the rough surface itself has low drying efficiency and high energy consumption, leading to a poor actual drying effect. Therefore, it is necessary to address the shortcomings of the existing equipment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a plastic insulation board extrusion molding device, which solves the problems of poor cooling and shaping effect and poor product surface drying effect when using existing plastic molding extrusion devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plastic insulation board extrusion molding device, comprising an extruder and a cooling mechanism, wherein the cooling mechanism includes a water tank, a bracket is fixedly connected to the outer surface of the water tank, a water pipe is fixedly connected through the body of the bracket, a piston rod is slidably connected through the body of the water pipe, a fixed ring is sleeved on the outside of the piston rod, the outer surface of the fixed ring is fixedly connected to the inside of the water pipe, a circular plate is provided on the outside of the piston rod, the circular plate drives the piston rod to reciprocate through eccentric motion, a one-way valve and a nozzle are respectively connected through the inside of the water pipe, and one end of the one-way valve and the nozzle are both located between the piston of the piston rod and the outer surface of the fixed ring; A drive assembly, disposed outside the circular plate, is used to drive the circular plate to rotate; A drying component, located outside the water pipe, is used to dry the surface of the insulation board.

[0006] Preferably, a rotating rod is fixedly connected to the bottom of the circular plate, a support plate is fixedly connected to the outer surface of the bracket, the outer surface of the rotating rod is rotatably connected to the body of the support plate, a connecting plate is provided on the outside of the circular plate, and a connecting shaft is fixedly connected to both sides of the connecting plate body. One end of one connecting shaft is rotatably connected to the outer surface of the circular plate, and a rotating frame is rotatably connected to the outer surface of the other connecting shaft. The outer surface of the rotating frame is fixedly connected to one end of the piston rod.

[0007] Preferably, the drive assembly includes an arc strip, which is arranged around the arc surface of the circular plate and is in the shape of a worm gear ring. A worm is engaged on the outer surface of the arc strip, and one end of the worm is fixedly connected to a drive motor through a coupling.

[0008] Preferably, the worm gear is provided with two sliders on its outside. The outer surfaces of the two sliders are slidably connected to the outer surface of the support plate. The outer surfaces of the two sliders are fixedly connected with pins. The outer surfaces of the two pins are fitted with T-tubes. One end of one T-tube is fixedly connected to the outer surface of the drive motor, and the interior of one end of the other T-tube is movably connected to the outer surface of the worm gear.

[0009] Preferably, both sliders are threadedly connected to lead screws, one end of which is fixedly connected to an adjusting motor via a coupling, and the outer surface of the adjusting motor is fixedly connected to the outer surface of the bracket.

[0010] Preferably, the arc strip is provided with a telescopic unit on its exterior. The telescopic unit includes a slide bar. One end of the slide bar is fixedly connected to the outer surface of the arc strip, and the other end of the slide bar is slidably embedded in the arc surface of the circular plate. A groove is provided at the other end of the slide bar, and a telescopic rod is fixedly connected inside the groove. One end of the telescopic rod is fixedly connected to the interior of the connection between the circular plate and the slide bar.

[0011] Preferably, a traction rope is fixedly connected inside the groove, one end of the traction rope is wound with a spool, a winding motor is fixedly connected to the outer surface of the spool, and the outer surface of the winding motor is fixedly connected to the interior of the connection between the circular plate and the slide bar.

[0012] Preferably, the drying assembly includes a clamping frame, the outer surface of which is fixedly connected to the outer surface of the water tank by a fixing rod, and a rotating roller is rotatably connected inside the clamping frame.

[0013] Preferably, a flat tube is fixedly connected inside the clamping frame, one end of the flat tube is directly above the rotating roller, and an electric heating wire is fixedly connected inside the flat tube.

[0014] Beneficial effects This invention provides a plastic insulation board extrusion molding apparatus. Compared with the prior art, it has the following advantages: (1) By setting up a cooling mechanism, multiple water pipes with nozzles are set above the product movement direction, and different water volumes are provided for cooling by the different movement speeds of the piston rods on each water pipe, thereby achieving a layered cooling effect and improving the cooling and shaping effect of plastic products.

[0015] (2) By setting up a drive assembly, the stability of the piston rod movement can be improved by utilizing the meshing of the worm gear and the worm. The connection between the three-way pipe and the drive motor and the worm can facilitate the adjustment of their orientations, so as to drive the arc strips with different rotation radii at the same time, thereby achieving different piston rod movement speeds and providing different water volumes for stratified cooling of the product.

[0016] (3) By setting up a telescopic unit, the output end of the telescopic rod can be extended or retracted by winding or releasing the traction rope through the winding motor, so that the arc strip can be driven to move along the radial direction of the circular plate through the slide bar, thereby adjusting the rotation radius of the arc strip to achieve synchronous control of different water supply volumes of multiple water pipes.

[0017] (4) By setting up a drying component and using a clamping frame to wrap around the outside of the plastic product, excess water on the surface of the plastic product is scraped off, thereby reducing the amount of water that needs to be adsorbed and dried, thus improving drying efficiency and reducing drying costs. Attached Figure Description

[0018] Figure 1 This is a perspective view of the external structure of the present invention; Figure 2 This is a three-dimensional view of the internal structure of the water pipe of the present invention; Figure 3 This is a perspective view of the external structure of the circular plate of the present invention; Figure 4 This is a perspective view of the external structure of the worm gear of the present invention; Figure 5 This is a perspective view of the internal structure of the slider of the present invention; Figure 6 This is a three-dimensional view of the internal structure of the flat tube of the present invention.

[0019] In the diagram: 1. Extruder; 2. Water tank; 3. Support frame; 4. Water pipe; 5. Drying assembly; 51. Clamping frame; 52. Fixed rod; 53. Rotary roller; 54. Flat tube; 55. Heating wire; 6. Piston rod; 7. Fixed ring; 8. Circular plate; 9. Drive assembly; 91. Arc strip; 92. Telescopic unit; 921. Sliding strip; 922. Groove; 923. Telescopic rod; 924. Traction rope; 925. Spool; 926. Winding motor; 93. Worm gear; 94. Drive motor; 95. Slider; 96. Pin; 97. T-pipe; 98. Lead screw; 99. Adjusting motor; 10. One-way valve; 11. Nozzle; 12. Rotating rod; 13. Support plate; 14. Connecting plate; 15. Coupling shaft; 16. Rotating frame. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-6 The present invention provides a technical solution: a plastic insulation board extrusion molding device. Example 1: Refer to the attached instruction manual Figure 1 Appendix Figure 2 Appendix Figure 3 ; The system includes an extruder 1, with a molding die at its output end. An external cooling mechanism is provided, comprising a water tank 2 filled with liquid water for cooling and shaping, and an internal water pump (not shown). A bracket 3 is fixedly connected to the outer surface of the water tank 2, and a water pipe 4 is fixedly connected through the bracket 3. A piston rod 6 is slidably connected through the water pipe 4, and multiple piston plates are mounted on the piston rod 6 to lift multiple water supply points. The sliding speed of the piston rod 6 increases sequentially along the product movement direction to provide different water volumes for stratified cooling. A retaining ring 7 is fitted around the piston rod 6, made of a pressure-resistant, wear-resistant, and well-sealing material. The outer surface of the retaining ring 7 is fixedly connected to the interior of the water pipe 4. A circular plate 8 is mounted on the outside of the piston rod 6, and the circular plate 8 drives the piston rod 6 to reciprocate through eccentric motion. A one-way valve 10 and a nozzle 11 are respectively connected through the interior of the water pipe 4. One-way valve 10 is connected to water pump and external water source through water supply pipe, which can also avoid the problem of liquid water backflow. The spray range of nozzle 11 covers each other to achieve a spray effect without dead corners on the product surface. One end of one-way valve 10 and nozzle 11 are located between the piston of piston rod 6 and the outer surface of solid ring 7. Rotating rod 12 is fixedly connected to the bottom of circular plate 8. Support plate 13 is fixedly connected to the outer surface of bracket 3. The outer surface of rotating rod 12 is rotatably connected to the body of support plate 13. Connecting plate 14 is provided on the outside of circular plate 8. Connecting shaft 15 is fixedly connected to both sides of the body of connecting plate 14. One end of connecting shaft 15 on one side is rotatably connected to the outer surface of circular plate 8. The outer diameter of all circular plates 8 and the position of connecting shaft 15 and its connection point are fixed to achieve the same movement distance of multiple piston rods 6. Rotating frame 16 is rotatably connected to the outer surface of connecting shaft 15 on the other side. The outer surface of rotating frame 16 is fixedly connected to one end of piston rod 6.

[0022] In this embodiment, the circular plate 8 rotates and is eccentrically connected to it via a connecting shaft 15 on one side, causing the connecting plate 14 to reciprocate. At the same time, the connecting plate 14 is connected to the rotating frame 16 via the connecting shaft 15 on the other side, pulling the piston rod 6 to reciprocate inside the water pipe 4. When the piston plate of the piston rod 6 moves away from the solid ring 7, an external water source or water pump inputs low-temperature liquid water into the water pipe 4 through a water supply pipe and a one-way valve 10. When the piston rod 6 returns to its original position, the piston plate, through the squeezing action with the solid ring 7, sprays the liquid water through the nozzle 11 onto the product surface for cooling and shaping. First, a small amount of liquid water at low speed and low pressure is used to cool and shape the product surface. Then, by gradually increasing the amount, speed, and pressure of the liquid water, the interior of the product is gradually cooled to improve the cooling and shaping effect of the product surface.

[0023] Example 2: Based on Example 1, refer to the appendix of the instruction manual. Figure 3 Appendix Figure 4 ; A drive assembly 9 is provided on the outside of the circular plate 8. The drive assembly 9 includes multiple arc strips 91 on the surface of the circular plate 8, and all arc strips 91 are the same size. The rotation radius of the multiple sets of arc strips 91 decreases sequentially along the product movement direction. The arc strips 91 are arranged around the arc surface of the circular plate 8 in a worm gear ring shape. A worm 93 meshes with the outer surface of the arc strips 91. One end of the worm 93 is fixedly connected to a drive motor 94 through a coupling. The drive motor 94 is electrically connected to an external control circuit. Two sliders 95 are provided on the outside of the worm 93. The outer surfaces of the two sliders 95 are slidably connected to the outer surface of the support plate 13. Pins 96 are fixedly connected to the outer surfaces of the two sliders 95. The outer surfaces of the two pins 96 are sleeved with... There is a three-way pipe 97, with one end of the other three-way pipe 97 being longer so that when the worm gear 93 is adjusted, it can slide axially inside to adapt to the change in position. One end of the three-way pipe 97 on one side is fixedly connected to the outer surface of the drive motor 94, and the interior of one end of the three-way pipe 97 on the other side is movably connected to the outer surface of the worm gear 93. The bodies of the two sliders 95 are threadedly connected to lead screws 98. One end of the lead screw 98 is fixedly connected to an adjusting motor 99 through a coupling. The adjusting motor 99 is made of servo motor and is electrically connected to an external control circuit. The combination of adjusting motor 99 and lead screw 98 can be replaced by a combination of linear motor and slide rail. The outer surface of the adjusting motor 99 is fixedly connected to the outer surface of the bracket 3.

[0024] In this embodiment, the drive motor 94 drives the worm 93 to rotate via a coupling. Through the meshing of the worm 93 with the arc strip 91, the arc strip 91 rotates with the circular plate 8, thereby driving the piston rod 6 to move and spray. At the same time, when it is necessary to adjust the spray volume of multiple water pipes 4, the rotation radius of the arc strip 91 is first adjusted. Then, the two adjustment motors 99 drive the lead screw 98 to rotate, so that the two sliders 95 drive the drive motor 94 and one end of the worm 93 to move synchronously through the pin 96 and the three-way pipe 97, thereby changing their orientation angle. Then, when the worm 93 drives the arc strip 91 to rotate, along the direction of motion, since the rotation radius of the arc strip 91 decreases successively, the rotation speed of the circular plate 8 and the movement speed of the piston rod 6 increase successively, so that the water supply of the water pipe 4 increases successively.

[0025] Example 3: Based on Example 2, refer to the appendix of the instruction manual. Figure 3 Appendix Figure 5 ; An external telescopic unit 92 is provided on the arc strip 91. The telescopic unit 92 includes a slider 921 with a rectangular cross-section to improve the stability of the arc strip 91's movement. One end of the slider 921 is fixedly connected to the outer surface of the arc strip 91, and the other end of the slider 921 is slidably embedded in the arc surface of the circular plate 8. A groove 922 is provided at the other end of the slider 921, which can provide a large radial movement range. A telescopic rod 923 is fixedly connected inside the groove 922. The telescopic rod 923 is made of a spring rod to facilitate the control of the movement of the slider 921. One end of the telescopic rod 923 is fixedly connected to the internal connection between the circular plate 8 and the slider 921. A traction rope 924 is fixedly connected inside the groove 922. One end of the traction rope 924 is wound and connected to a bobbin 925. A winding motor 926 is fixedly connected to the outer surface of the bobbin 925. The winding motor 926 is made of a servo motor, and the circuit of the winding motor 926 is electrically connected to an external control circuit through a detachable connecting element. At the same time, the connecting element for power connection of the winding motor 926 is set below the circular plate 8 to protect the connecting element. The radial position of the arc strip 91 on the outside of the circular plate 8 is controlled by controlling the release amount of the traction rope 924. The outer surface of the winding motor 926 is fixedly connected to the interior of the connection between the circular plate 8 and the slide strip 921.

[0026] In this embodiment, when it is necessary to adjust the rotation radius of the arc strip 91, the winding motor 926 drives the bobbin 925 to rotate, so as to wind or release the traction rope 924, thereby causing the telescopic rod 923 to move synchronously, so as to drive the arc strip 91 to move synchronously through the slider 921, thereby completing the adjustment of the rotation radius of the arc strip 91.

[0027] Example 4: Based on Example 3, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 6 ; A drying assembly 5 is installed outside the water pipe 4. The drying assembly 5 includes a clamping frame 51. The dimensions of the two sides of the clamping frame 51 are set in equal proportions so that the clamping frame 51 is an isosceles trapezoid with inclined sides, thereby providing a larger blocking range to prevent the scraped liquid water from overflowing through the clamping frame 51 and re-adhering to the surface of the plastic product. The clamping frame 51 can scrape off most of the liquid water on the product surface, thereby reducing drying pressure and cost. The outer surface of the clamping frame 51 is fixedly connected to the outer surface of the water tank 2 by a fixing rod 52. A rotating roller 53 is rotatably connected inside the clamping frame 51. The surface of the rotating roller 53 can be fixed with a highly absorbent fiber material (not shown in the figure) by Velcro. A flat tube 54 is fixedly connected inside 51. A fan (not shown in the figure) is connected inside the flat tube 54 through an air pipe. The flat tube 54 can be set in groups of two, one above the other, and two to the left and right, and the two types of flat tubes 54 are staggered along the product movement direction. One end of the flat tube 54 is directly above the rotating roller 53. An electric heating wire 55 is fixedly connected inside the flat tube 54. The electric heating wire 55 is made of a high-resistance material and is electrically connected to an external control circuit. After being energized, it heats the air to dry the fiber material. At the same time, the electric heating wire 55 is located inside the flat tube 54 and can heat the air when it is discharged to facilitate heat loss during air flow.

[0028] In this embodiment, the plastic product moves through the clamping frame 51. The clamping frame 51 scrapes away excess liquid water from the product surface, and the scraped water flows into the water tank 2 through the inclined sides of the clamping frame 51 for recycling. Then, the rotating roller 53 rotates synchronously with the product through friction, and uses its surface absorbent fibers to absorb the remaining water droplets on the product surface. At the same time, an external fan delivers air into the flat tube 54 and blows it onto the absorbent fibers. When the air is discharged from the flat tube 54, the heating wire 55 is energized to heat the air. The absorbent fibers, after absorbing water, are dried by the hot air as they move toward the flat tube 54, thus achieving the effect of continuous water absorption and drying of the product surface.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic insulation board extrusion molding apparatus, comprising an extruder (1), characterized in that: The cooling mechanism includes a water tank (2), a bracket (3) is fixedly connected to the outer surface of the water tank (2), a water pipe (4) is fixedly connected through the body of the bracket (3), a piston rod (6) is slidably connected through the body of the water pipe (4), a solid ring (7) is sleeved on the outside of the piston rod (6), the outer surface of the solid ring (7) is fixedly connected to the inside of the water pipe (4), a circular plate (8) is provided on the outside of the piston rod (6), the circular plate (8) drives the piston rod (6) to reciprocate through eccentric motion, a one-way valve (10) and a nozzle (11) are respectively connected through the inside of the water pipe (4), and one end of the one-way valve (10) and the nozzle (11) are both located between the piston of the piston rod (6) and the outer surface of the solid ring (7); A drive assembly (9) is disposed outside the circular plate (8) and is used to drive the circular plate (8) to rotate; Drying component (5), which is set outside the water pipe (4), is used to dry the surface of the insulation board.

2. The plastic insulation board extrusion molding device according to claim 1, characterized in that: A rotating rod (12) is fixedly connected to the bottom of the circular plate (8), and a support plate (13) is fixedly connected to the outer surface of the bracket (3). The outer surface of the rotating rod (12) is rotatably connected to the body of the support plate (13). A connecting plate (14) is provided on the outside of the circular plate (8). A connecting shaft (15) is fixedly connected to both sides of the body of the connecting plate (14). One end of the connecting shaft (15) on one side is rotatably connected to the outer surface of the circular plate (8), and a rotating frame (16) is rotatably connected to the outer surface of the connecting shaft (15) on the other side. The outer surface of the rotating frame (16) is fixedly connected to one end of the piston rod (6).

3. The extrusion molding apparatus for plastic insulation boards according to claim 2, characterized in that: The drive assembly (9) includes an arc strip (91), which is arranged around the arc surface of the circular plate (8) and is in the shape of a worm gear ring. A worm (93) is engaged on the outer surface of the arc strip (91), and a drive motor (94) is fixedly connected to one end of the worm (93) through a coupling.

4. The plastic insulation board extrusion molding device according to claim 3, characterized in that: The worm (93) has two sliders (95) on its outside. The outer surfaces of the two sliders (95) are slidably connected to the outer surface of the support plate (13). The outer surfaces of the two sliders (95) are fixedly connected to pins (96). The outer surfaces of the two pins (96) are fitted with three-way tubes (97). One end of one three-way tube (97) is fixedly connected to the outer surface of the drive motor (94), and the interior of one end of the other three-way tube (97) is movably connected to the outer surface of the worm (93).

5. The plastic insulation board extrusion molding device according to claim 4, characterized in that: Both sliders (95) have a lead screw (98) threaded through their bodies. One end of the lead screw (98) is fixedly connected to an adjusting motor (99) via a coupling. The outer surface of the adjusting motor (99) is fixedly connected to the outer surface of the bracket (3).

6. The plastic insulation board extrusion molding device according to claim 3, characterized in that: The arc strip (91) is provided with a telescopic unit (92) on its outside. The telescopic unit (92) includes a slide (921). One end of the slide (921) is fixedly connected to the outer surface of the arc strip (91), and the other end of the slide (921) is slidably embedded in the arc surface of the circular plate (8). The other end of the slide (921) is provided with a groove (922). A telescopic rod (923) is fixedly connected inside the groove (922). One end of the telescopic rod (923) is fixedly connected to the inside of the connection between the circular plate (8) and the slide (921).

7. The extrusion molding apparatus for plastic insulation boards according to claim 6, characterized in that: A traction rope (924) is fixedly connected inside the groove (922). One end of the traction rope (924) is wound with a bobbin (925). A winding motor (926) is fixedly connected to the outer surface of the bobbin (925). The outer surface of the winding motor (926) is fixedly connected to the interior of the connection between the circular plate (8) and the slide bar (921).

8. The extrusion molding apparatus for plastic insulation boards according to claim 1, characterized in that: The drying assembly (5) includes a clamping frame (51), the outer surface of which is fixedly connected to the outer surface of the water tank (2) by a fixing rod (52), and a rotating roller (53) is rotatably connected inside the clamping frame (51).

9. The extrusion molding apparatus for plastic insulation board according to claim 8, characterized in that: A flat tube (54) is fixedly connected inside the clamping frame (51). One end of the flat tube (54) is directly above the rotating roller (53). An electric heating wire (55) is fixedly connected inside the flat tube (54).

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