Melting equipment for polypropylene fiber production

Abstract

The invention discloses melting equipment for polypropylene fiber production, and relates to the technical field of melting equipment for polypropylene fiber.The melting equipment for polypropylene fiber production comprises a melting box, supporting legs are fixed to the lower portion of the melting box, an extrusion disc is fixed to the melting box, and a fixing frame is fixed to the melting box; according to the melting equipment for polypropylene fiber production, the motor is driven, the lead screw rotates, the sliding frame slides on the fixing frame to be away from the motor, and therefore the sliding frame drives the scraper to move away from the motor, the scraper scrapes polypropylene fiber waste on the extrusion disc, the sliding frame drives the scraper to move to make contact with the extrusion block, and the extrusion block is driven by the sliding frame to make contact with the extrusion disc. An extrusion block extrudes a cross rod, the cross rod drives a supporting rod and a scraper to be far away from the melting box, the scraper drives a limiting block and a limiting spring to slide to a limiting groove, the scraper retracts into a sliding frame, and the situation that the sliding frame drives the scraper to reset to conduct reverse scraping when resetting is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of melting equipment for producing polypropylene fibers, in particular to melting equipment for producing polypropylene fibers. Background Art

[0002] Polypropylene fiber is a synthetic fiber spun from isotactic polypropylene obtained by polymerization of propylene, also known as polypropylene.

[0003] Patent announcement number CN212826717U is a polyester fiber raw material melt extrusion device, which uses an installed water pump to pump water inside the cavity into the interior of an annular tube, and recovers the waste heat inside the guide hole through the annular tube. The waste heat heats the water inside the annular tube. When the extrusion box is used again, the water pump drives the water circulation to preheat the inside of the guide hole, thereby reducing the melting time of the polyester fiber raw material.

[0004] Polypropylene fiber raw material is a plastic fiber raw material. When the fiber raw material is heated and melted and then extruded from the extrusion disk, the material will be in a heated state during long-term discharge, which will cause the plastic fiber material to stick to the side wall of the extrusion disk and be difficult to fall off, making it inconvenient to handle the plastic waste. If manual handling is used, the extrusion disk will be in a high temperature state, which may cause burns to the operator. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a melting device for producing polypropylene fibers, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A melting device for polypropylene fiber production, comprising a melting box, a support leg fixed below the melting box, an extrusion disk fixed on the melting box, raw materials are added into the melting box, the materials are melted, and then extruded from the extrusion disk, a fixing frame fixed on the melting box, a collection box fixed at the bottom of the fixing frame, a scraping device provided on the fixing frame, a glue hooking device provided on the scraping device, and a cooling device provided on the scraping device; Among them, the scraping device includes a motor, a screw, a sliding frame, a scraper, a support rod, a cross bar, a support spring, a limit block, a limit spring, an extrusion block, an extrusion rod and a limit slot. The motor is fixed to the outer wall of the fixed frame, and a screw is fixed to the output end of the motor. The screw rotates on the side wall of the fixed frame through a bearing. A sliding frame slides on the screw, and the sliding frame slides on the fixed frame.

[0007] According to the above technical solution, a scraper slides in the sliding frame, a support rod is fixed on the scraper, the support rod passes through the side wall of the sliding frame and is slidably connected at the penetration point, a cross bar is fixed on the support rod, a support spring is fixed above the scraper, and the end point of the support spring is fixed to the inner wall of the sliding frame. The motor is started, so that the motor rotates with the lead screw, so that the sliding frame slides away from the motor on the lead screw, and the sliding frame slides away from the motor on the fixed frame. The sliding frame slides away from the motor and the scraper is moved away from the motor, so that the scraper scrapes off the polypropylene waste on the extrusion disk.

[0008] According to the above technical solution, the limit block slides inside the scraper, a limit spring is fixed to the side wall of the limit block, and the side of the limit spring away from the limit block is fixed to the inside of the scraper. The extrusion block is fixed to the fixed frame, and the extrusion rod is fixed to the fixed frame. The sliding frame is provided with a limit slot. As the scraper slides within the sliding frame, it also slides with the limit block and the limit spring. When the scraper is completely slid and retracted into the sliding frame, the limit block slides into the limit slot, so that the limit block is limited to the limit slot under the action of the elastic force of the limit spring.

[0009] According to the above technical solution, the glue hooking device includes a rack, a rotating rod, a gear, a first reel, a fixed block, a rotating rod, a spiral spring, a second reel, a round block, a hook claw, a sliding spring and a cable, and the rack is fixed on the scraper.

[0010] The transmission mechanism that this sliding part is engaged with the present invention is that this sliding part is engaged with the present invention, and this sliding part has the gear that is engaged with the gear of said rack and is engaged with the gear of said guide wheel.

[0011] According to the above technical solution, a second wire wheel is fixed on the rotating rod, a round block is fixed on the rotating rod, a hook is sliding on the inner side of the round block, a sliding spring is fixed on the hook, the side wall of the sliding spring is fixed to the inner wall of the round block, a cable is fixed on the first wire wheel, and the end point of the cable is fixed on the second wire wheel. When the rotating rod rotates, it can drive the round block to rotate, so that the round block drives the hook to rotate.

[0012] According to the above technical solution, the cooling device includes a sliding rod, a rotating block, an extrusion spring, an extrusion rod, a push rod, a water tank, a displacement rod, a pressure spring, a slide plate and a nozzle. The sliding rod slides on the inner wall of the rotating rod, the rotating block is fixed on the sliding rod, the extrusion spring is fixed on the sliding rod, and the end point of the extrusion spring is fixed on the inner wall of the rotating rod.

[0013] According to the above technical solution, the extrusion rod slides on the inner wall of the sliding frame, and a push rod is fixed on the sliding frame, and the end point of the push rod is sleeved on the sliding rod, and a water tank is fixed on the sliding frame, and the displacement rod passes through the side wall of the water tank and is slidably connected at the penetration point, and a pressure spring is fixed on the displacement rod, and the end point of the pressure spring is fixed on the water tank, and the end point of the displacement rod is fixed with a slide, and the slide slides on the partition of the water tank, and a nozzle is fixed on the water tank. When the scraper slides into the sliding frame to rotate the rotating rod, the rotating rod rotates with the sliding rod, and the sliding rod rotates with the rotating block, so that the rotating block squeezes the displacement rod, causing the pressure spring to deform, so that the displacement rod drives the slide to slide on the partition of the water tank, so that the water outlet on the partition is exposed, so that the water in the water tank can be sprayed out from the nozzle.

[0014] The present invention provides a melting device for producing polypropylene fibers. It has the following beneficial effects: The scraper is moved out of the sliding frame by the elastic force of the support spring, so that the scraper is reset and can scrape the plastic fiber waste again, thereby avoiding manual reset and causing work injuries to the staff.

[0015] 2. The present invention is provided with a glue hooking device. When the scraper slides into the sliding frame, the scraper moves into the sliding frame with the rack, so that the gear meshed with the rack drives the rotating rod and the wire wheel to rotate. The wire wheel rotates to make the cable bundled on the wire wheel, so that the wire wheel rotates. The wire wheel rotates with the rotating rod, the round block and the hook claw. The rotating rod contracts the spiral spring, so that the plastic fiber waste on the scraper is hooked and removed by the hook claw, thereby avoiding the accumulation of plastic fiber waste on the scraper, thereby affecting the scraping effect of the scraper, and solving the problem of plastic fiber waste on the scraper. The problem of fiber waste accumulation affecting the scraping effect of the scraper; when the scraper moves out of the sliding frame, the scraper resets with the rack, and the gear drives the wire wheel and the rotating rod to reverse, so that the cable is no longer stretched, so that the spiral spring is subjected to torsion and drives the rotating rod to reverse, and the rotating rod drives the round block, the hook and the sliding spring to reverse, so that the hook is acted upon by the centrifugal force and slides away from the rotating rod, so that the hook hits the scraper, so that the plastic fiber waste on the hook is knocked off, thereby solving the problem of plastic fiber waste accumulation affecting the waste removal by the hook.

[0016] 3. The present invention is provided with a cooling device. When the scraper moves into the sliding frame to rotate the rotating rod, the rotating rod rotates with the sliding rod and the rotating block, so that the rotating block squeezes the displacement rod, so that the displacement rod slides with the slide on the partition of the water tank, so that a water outlet is formed between the partition and the slide, so that the water in the water tank can be sprayed out from the nozzle. When the rotating block no longer squeezes the displacement rod, the displacement rod slides with the slide on the partition of the water tank to reset, so that the partition and the slide are in contact and sealed, so that the water in the water tank is no longer transported to the nozzle, so that the water in the water tank is no longer sprayed from the nozzle, and the water in the water tank is sprayed intermittently from the nozzle. When the scraper is completely retracted into the sliding frame, the scraper no longer squeezes the squeezing rod, so the push rod is no longer subjected to squeezing force, so that the sliding rod and the rotating block are acted upon by the squeezing spring and approach the sliding frame, so that the rotating block no longer contacts the displacement rod, and it is avoided that after the scraper completely slides into the sliding frame, the rotating block squeezes the displacement rod, so that the slide plate no longer blocks the water outlet on the water tank partition, causing water to spray all the time, thereby causing the problem of water waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the present invention as a whole; Figure 3 It is a schematic diagram of the overall side structure of the present invention; Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 5 It is a partial structural diagram of the present invention; Figure 6 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 7 This is a schematic structural diagram of the scraping device of the present invention; Figure 8 This is a partial schematic diagram of the collection box of the present invention; Figure 9 This is a structural schematic diagram of the glue hooking device of the present invention; Figure 10 This is a partial structural diagram of the glue hooking device of the present invention; Figure 11 This is a schematic structural diagram of the cooling device of the present invention; Figure 12 It is a partial schematic diagram of the cooling device of the present invention; Figure 13 It is a schematic diagram of the local cross-sectional structure of the present invention.

[0018] In the figure: 1, melting box; 2, supporting legs; 3, extrusion plate; 4, fixing frame; 5, collecting box; 6, scraping device; 7, glue hooking device; 8, cooling device; 601, motor; 602, screw rod; 603, sliding frame; 604, scraper; 605, support rod; 606, cross bar; 607, support spring; 608, limit block; 609, limit spring; 610, extrusion block; 611, extrusion rod; 612, limit slot; 701, rack; 702, Rotating rod; 703, gear; 704, reel one; 705, fixed block; 706, rotating rod; 707, snail spring; 708, reel two; 709, round block; 710, hook; 711, sliding spring; 712, cable; 801, sliding rod; 802, rotating block; 803, extrusion spring; 804, extrusion rod; 805, push rod; 806, water tank; 807, displacement rod; 808, pressure spring; 809, slide plate; 810, nozzle. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-13, one embodiment of the present invention is: a melting device for polypropylene fiber production, comprising a melting box 1, the melting box 1 comprises a shell, a motor, an output rod, an auger, a feed port and a heating plate, a support leg 2 is fixed to the bottom of the shell, a motor is fixed on the shell, an output end of the motor is fixed to the output rod, the output rod rotates on the shell, an auger is fixed on the output rod, a heating plate is fixed on the inner wall of the shell, the auger rotates in the shell, and a feed port is fixed above the shell, a support leg 2 is fixed to the bottom of the melting box 1, an extrusion disk 3 is fixed on the melting box 1, a fixing frame 4 is fixed on the melting box 1, a collecting box 5 is fixed at the bottom of the fixing frame 4, and a scraping device 6 for scraping waste attached to the surface of the extrusion disk 3 is provided on the fixing frame 4; wherein the scraping device 6 comprises a motor 601, a screw rod 602, a sliding frame 603, a scraper 604, a support rod 605, a cross bar 606, a support spring 607, a limit block 608, a limit spring 609, an extrusion block 610, an extrusion rod 611 and The limiting groove 612, the motor 601 is fixed to the outer wall of the fixed frame 4, the output end of the motor 601 is fixed with a screw 602, the screw 602 rotates on the side wall of the fixed frame 4 through the bearing, a sliding frame 603 slides on the screw 602, the sliding frame 603 slides on the fixed frame 4, a scraper 604 slides in the sliding frame 603, and a support rod 605 is fixed on the scraper 604, the support rod 605 passes through the side wall of the sliding frame 603, and is slidably connected at the penetration point, and a support rod 605 is fixed on the support rod 605. A support spring 607 is fixed above the cross bar 606 and the scraper 604, and the end point of the support spring 607 is fixed to the inner wall of the sliding frame 603. The limit block 608 slides on the inner side of the scraper 604. The side wall of the limit block 608 is fixed with a limit spring 609. The side of the limit spring 609 away from the limit block 608 is fixed to the inner side of the scraper 604. An extrusion block 610 is fixed on the fixed frame 4, an extrusion rod 611 is fixed on the fixed frame 4, and a limit slot 612 is provided on the sliding frame 603.

[0021] By setting the scraper 604, when the scraper 604 moves from top to bottom, the scraper 604 scrapes off the plastic fiber waste adhered to the outer wall of the extrusion disk 3, and when the sliding frame 603 moves with the scraper 604 to contact the extrusion block 610, the extrusion block 610 squeezes the cross bar 606, so that the cross bar 606 brings the support rod 605 and the scraper 604 away from the melting box 1, so that the scraper 604 slides to the limit groove 612 with the limit block 608 and the limit spring 609, thereby playing a role in the scraper 604. 04 performs positioning, so that the scraper 604 is fixed away from the extrusion disc 3, and the scraper 604 is retracted into the sliding frame 603, so as to prevent the sliding frame 603 from resetting and scraping the scraper 604 in the reverse direction when resetting, so that the plastic fiber waste is pushed in a fixed direction, and the scraper 604 is prevented from scraping in the reverse direction so that the plastic fiber waste is re-adhered to the surface of the extrusion disc 3, thereby improving the cleaning efficiency and solving the problem that the two-way movement of the scraper 604 causes the plastic fiber waste to be brought back and re-adhered when the scraper 604 goes back and forth; When the sliding frame 603 is reset, the extrusion rod 611 squeezes the limit block 608, causing the limit block 608 to move out of the limit groove 612, and the scraper 604 slides out of the sliding frame 603 again under the elastic force of the support spring 607, so that the scraper 604 is reset and can scrape the plastic fiber waste again, avoiding manual reset and causing work injuries to the staff.

[0022] When this embodiment is working: the staff pours polypropylene from the feed port on the melting box 1, starts the heating plate, and drives the motor to rotate the auger, so that the melted polypropylene material in the shell is extruded from the extrusion disk 3 to form polypropylene fibers. When the waste in the melting box 1 is processed, the motor is turned off, and the scraping device 6 is used to scrape the plastic fiber waste on the extrusion disk 3 through the scraper 604 and separate it into the collection box 5 for recycling. The motor 601 is started, so that the motor 601 rotates with the screw rod 602, so that the sliding frame 603 is on the screw rod 6 02 slides away from the motor 601, the sliding frame 603 slides away from the motor 601 on the fixed frame 4, the sliding frame 603 slides away from the motor 601 and the scraper 604 moves away from the motor 601, so that the scraper 604 scrapes the polypropylene waste on the extrusion disk 3, and when the sliding frame 603 slides with the scraper 604 to the farthest side from the motor 601, the extrusion block 610 squeezes the cross bar 606, so that the cross bar 606 is forced to move away from the sliding frame 603, and the cross bar 606 slides away from the sliding frame 603 and the support rod 605 slides away from the sliding frame 60 3, so that the scraper 604 slides and retracts into the sliding frame 603, the support spring 607 is deformed, and the scraper 604 slides in the sliding frame 603 while sliding with the limit block 608 and the limit spring 609. When the scraper 604 completely slides and retracts into the sliding frame 603, the limit block 608 slides to the limit groove 612, so that the limit block 608 is limited on the limit groove 612 under the action of the elastic force of the limit spring 609. When the scraper 604 is completely retracted into the sliding frame 603, the motor 601 is controlled to reverse, so that the screw rod 6 02 rotates in the opposite direction, so that the sliding frame 603 slides on the screw rod 602 and approaches the motor 601, and the sliding frame 603 slides on the fixed frame 4 and approaches the motor 601. When the sliding frame 603 moves to the side closest to the motor 601, the extrusion rod 611 squeezes the limit block 608, so that the limit block 608 is forced to slide into the limit groove 612 of the sliding frame 603, and the scraper 604 is reset downward by the elastic force of the support spring 607. The reset of the scraper 604 brings the reset of the support rod 605, and the reset of the support rod 605 brings the reset of the cross bar 606.

[0023] See also Figures 1-13On the basis of the above embodiment, in another embodiment of the present invention, a glue hooking device 7 is provided on the scraping device 6, and a cooling device 8 is provided on the scraping device 6. The glue hooking device 7 includes a rack 701, a rotating rod 702, a gear 703, a line wheel 1 704, a fixed block 705, a rotating rod 706, a spiral spring 707, a line wheel 2 708, a round block 709, a hook 710, a sliding spring 711 and a cable 712. The rack 701 is fixed on the scraper 604, the rotating rod 702 passes through and rotates on the sliding frame 603, and a gear 703 is fixed on the rotating rod 702. The gear 703 and the rack 701 are meshed with each other. 2 is fixed with a wire wheel 1 704, a fixed block 705 is fixed on the sliding frame 603, a rotating rod 706 is rotatable on the fixed block 705, a snail-shaped spring 707 is fixed on the fixed block 705, the endpoint of the snail-shaped spring 707 is fixed on the rotating rod 706, a wire wheel 2 708 is fixed on the rotating rod 706, a round block 709 is fixed on the rotating rod 706, a hook 710 slides on the inner side of the round block 709, a sliding spring 711 is fixed on the hook 710, the side wall of the sliding spring 711 is fixed to the inner wall of the round block 709, a cable 712 is fixed on the wire wheel 1 704, and the endpoint of the cable 712 is fixed on the wire wheel 2 708.

[0024] When the scraper 604 slides into the sliding frame 603, the scraper 604 slides into the sliding frame 603 with the rack 701, so that the gear 703 engaged with the rack 701 rotates with the rotating rod 702 and the line wheel 1 704, and the rotation of the line wheel 1 704 causes the cable 712 to be bundled on the line wheel 1 704, so that the line wheel 2 708 rotates, and the line wheel 2 708 rotates with the rotating rod 706, the round block 709 and the hook 710, and the rotating rod 706 contracts with the spiral spring 707, so that the plastic fiber waste on the scraper 604 is hooked and removed by the hook 710, thereby avoiding the accumulation of plastic fiber waste on the scraper 604, which affects the scraping effect of the scraper 604, and solves the problem that the accumulation of plastic fiber waste on the scraper 604 affects the scraping effect of the scraper 604; When the scraper 604 slides out of the sliding frame 603, the scraper 604 resets with the rack 701, so that the gear 703 reverses with the reel 704 and the rotating rod 702, so that the cable 712 is no longer stretched, so that the spiral spring 707 is subjected to torsion and reverses with the rotating rod 706, and the rotating rod 706 reverses with the round block 709, the hook 710 and the sliding spring 711, so that the hook 710 is slid away from the rotating rod 702 by the centrifugal force, so that the hook 710 hits the scraper 604, so that the plastic fiber waste on the hook 710 is knocked off, avoiding the accumulation of material on the hook 710, thereby affecting the hook 710 to remove the plastic fiber waste, and solving the problem that the accumulation of plastic fiber waste on the hook 710 affects the hook 710 to remove the waste.

[0025] The cooling device 8 includes a sliding rod 801, a rotating block 802, an extrusion spring 803, an extrusion rod 804, a push rod 805, a water tank 806, a displacement rod 807, a pressure spring 808, a slide plate 809 and a nozzle 810. The sliding rod 801 slides on the inner wall of the rotating rod 702. The rotating block 802 is fixed on the sliding rod 801. The extrusion spring 803 is fixed on the sliding rod 801. The end point of the extrusion spring 803 is fixed on the inner wall of the rotating rod 702. The extrusion rod 804 slides on the inner wall of the sliding frame 603. The sliding frame 60 3 is fixed with a push rod 805, the end point of the push rod 805 is sleeved on the sliding rod 801, a water tank 806 is fixed on the sliding frame 603, a displacement rod 807 passes through the side wall of the water tank 806, and is slidably connected at the penetration point, a pressure spring 808 is fixed on the displacement rod 807, the end point of the pressure spring 808 is fixed on the water tank 806, a slide plate 809 is fixed to the end point of the displacement rod 807, a partition is fixed on the inner wall of the water tank 806, the slide plate 809 slides on the partition of the water tank 806, and a nozzle 810 is fixed on the water tank 806; When the scraper 604 slides into the sliding frame 603 and the rotating rod 702 rotates, the rotating rod 702 rotates with the sliding rod 801 and the rotating block 802, so that the rotating block 802 squeezes the displacement rod 807, so that the displacement rod 807 slides with the slide plate 809 on the partition of the water tank 806, thereby exposing the water outlet on the partition, so that the water in the water tank 806 can be sprayed out from the nozzle 810, thereby cooling the scraper 604 and preventing the scraper 604 from heating up and causing the plastic fiber waste to stick to the scraper 604; when the rotating block 802 no longer squeezes the displacement rod 807, the displacement rod 807 slides with the slide plate 809 on the partition of the water tank 806 and resets, thereby blocking the water outlet on the partition, so that the water in the water tank 806 is no longer sprayed out from the nozzle 810, so that the water in the water tank 806 is sprayed out from the nozzle 810 intermittently, and the cooling water flows out from the nozzle 810 intermittently, avoiding the problem of waste caused by continuous water flow.

[0026] When the scraper 604 is completely retracted into the sliding frame 603, the scraper 604 no longer squeezes the squeezing rod 804, so that the push rod 805 is no longer subjected to the squeezing force, so that the sliding rod 801 and the rotating block 802 are acted upon by the squeezing spring 803 to move closer to the sliding frame 603, so that the rotating block 802 no longer contacts the displacement rod 807, thereby preventing the scraper 604 from completely sliding into the sliding frame 603, and causing the sliding plate 809 to no longer block the water outlet on the partition of the water tank 806, allowing water to continue spraying, thereby causing the problem of water waste.

[0027] When the embodiment is working, when the scraper 604 slides into the sliding frame 603, the scraper 604 slides with the rack 701 into the sliding frame 603, so that the gear 703 engaged with the rack 701 rotates, the gear 703 rotates with the rotating rod 702, the rotating rod 702 rotates with the wire wheel 1 704, the wire wheel 1 704 rotates so that the cable 712 is bundled on the wire wheel 1 704, so that the wire wheel 2 708 is rotated in the opposite direction under the tension, so that the cable 712 The second reel 708 is stretched out, and the second reel 708 rotates with the rotating rod 706, and the rotating rod 706 rotates with the contraction of the spiral spring 707, and the rotating rod 706 rotates with the round block 709, and the round block 709 rotates with the hook 710. When the hook 710 contacts the scraper 604, the hook 710 squeezes the sliding spring 711 and deforms. When the hook 710 no longer contacts the scraper 604, the hook 710 is ejected outward by the elastic force of the sliding spring 711 to reset. When the scraper 604 slides out of the sliding frame 603, the scraper 604 slides out of the sliding frame 603 with the rack 701, causing the gear 703 engaged with the rack 701 to rotate in the opposite direction. The gear 703 rotates in the opposite direction and causes the rotating rod 702 to rotate in the opposite direction. The rotating rod 702 rotates in the opposite direction and causes the reel 1 704 to rotate in the opposite direction. The reel 1 704 rotates in the opposite direction so that the cable 712 is no longer wound around the reel 1 704, so that the reel 2 708 is no longer subjected to tension, thereby rotating the rod 706. The spiral spring 707 is acted upon by the contraction torque of the spiral spring 707, so that the cable 712 is wound around the second reel 708, and the rotating rod 706 is acted upon by the reverse rotation of the round block 709, and the reverse rotation of the round block 709 is acted upon by the reverse rotation of the hook 710, and the centrifugal force is acted upon the hook 710, so that the sliding spring 711 is deformed to its maximum value, and the hook 710 slides to the outermost side of the round block 709, so that when the hook 710 contacts the scraper 604, the hook 710 is struck by the scraper 604.

[0028] When the scraper 604 slides into the sliding frame 603 and the rotating rod 702 rotates, the rotating rod 702 rotates with the sliding rod 801, and the sliding rod 801 rotates with the rotating block 802, so that the rotating block 802 squeezes the displacement rod 807, causing the pressure spring 808 to deform, so that the displacement rod 807 slides with the slide plate 809 on the partition of the water tank 806, so that the water outlet on the partition is exposed, so that the water in the water tank 806 can be sprayed out from the nozzle 810. When the rotating block 802 no longer squeezes the displacement rod 807, the displacement rod 807 is reset by the elastic force of the pressure spring 808, and the displacement rod 807 is reset and slides with the slide plate 809 on the partition of the water tank 806, so that the water outlet on the partition is blocked and the nozzle 810 no longer sprays water. When the scraper 604 is completely retracted into the sliding frame 603, the scraper 604 is completely retracted into the sliding frame 603. 04 no longer squeezes the squeezing rod 804, so that the push rod 805 is no longer subjected to the squeezing force, so that the sliding rod 801 slides into the rotating rod 702 under the elastic force of the squeezing spring 803, and the sliding rod 801 slides into the rotating rod 702 and drives the rotating block 802 to slide into the rotating rod 702 groove, so that the rotating block 802 no longer contacts the displacement rod 807. When the scraper 604 slides out of the sliding frame 603, the scraper 604 squeezes the squeezing rod 804, so that the two groups of squeezing rods 804 move away from each other, and the two groups of squeezing rods 804 move away from each other and drive the two groups of push rods 805 move away from each other, and the two groups of push rods 805 move away from each other and push the two groups of rotating blocks 802 move away from each other, and the two groups of rotating blocks 802 move away from each other and drive the two groups of sliding rods 801 move away from each other, and the squeezing spring 803 deforms, so that the rotating block 802 contacts the displacement rod 807 again.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A melting device for producing polypropylene fibers, comprising a melting box (1), characterized in that: A support leg (2) is fixed below the melting box (1), an extrusion disk (3) is fixed on the melting box (1), a fixing frame (4) is fixed on the melting box (1), a collecting box (5) is fixed at the bottom of the fixing frame (4), a scraping device (6) for scraping waste attached to the surface of the extrusion disk (3) is provided on the fixing frame (4), a glue hooking device (7) is provided on the scraping device (6), and a cooling device (8) is provided on the scraping device (6); The scraping device (6) comprises a motor (601), a screw (602), a sliding frame (603), a scraper (604), a support rod (605), a cross bar (606), a support spring (607), a limit block (608), a limit spring (609), an extrusion block (610), an extrusion rod (611) and a limit slot (612), wherein the motor (601) is fixed to the outer wall of the fixed frame (4), a screw (602) is fixed to the output end of the motor (601), the screw (602) rotates on the side wall of the fixed frame (4) through a bearing, a sliding frame (603) slides on the screw (602), and the sliding frame (603) slides on the fixed frame (4).

2. A melting device for producing polypropylene fibers according to claim 1, characterized in that: A scraper (604) slides inside the sliding frame (603), a support rod (605) is fixed on the scraper (604), the support rod (605) passes through the side wall of the sliding frame (603) and is slidably connected at the penetration point, a cross bar (606) is fixed on the support rod (605), a support spring (607) is fixed above the scraper (604), and the end point of the support spring (607) is fixed to the inner wall of the sliding frame (603).

3. A melting device for producing polypropylene fibers according to claim 2, characterized in that: The limit block (608) slides on the inner side of the scraper (604), a limit spring (609) is fixed to the side wall of the limit block (608), and the side of the limit spring (609) away from the limit block (608) is fixed to the inner side of the scraper (604), an extrusion block (610) is fixed on the fixing frame (4), an extrusion rod (611) is fixed on the fixing frame (4), and a limit slot (612) is provided on the sliding frame (603).

4. A melting device for producing polypropylene fibers according to claim 3, characterized in that: The glue hooking device (7) comprises a rack (701), a rotating rod (702), a gear (703), a first reel (704), a fixed block (705), a rotating rod (706), a snail-shaped spring (707), a second reel (708), a round block (709), a hook claw (710), a sliding spring (711) and a cable (712), wherein the rack (701) is fixed on the scraper (604).

5. The melting device for producing polypropylene fibers according to claim 4, characterized in that: The rotating rod (702) passes through and rotates on the sliding frame (603), a gear (703) is fixed on the rotating rod (702), the gear (703) and the rack (701) are meshed with each other, a wire wheel (704) is fixed on the rotating rod (702), a fixed block (705) is fixed on the sliding frame (603), a rotating rod (706) is rotated on the fixed block (705), a snail-shaped spring (707) is fixed on the fixed block (705), and the end point of the snail-shaped spring (707) is fixed on the rotating rod (706).

6. The melting device for producing polypropylene fibers according to claim 5, characterized in that: A second wire wheel (708) is fixed on the rotating rod (706), a round block (709) is fixed on the rotating rod (706), a hook (710) is slidably provided on the inner side of the round block (709), a sliding spring (711) is fixed on the hook (710), a side wall of the sliding spring (711) is fixed to the inner wall of the round block (709), a cable (712) is fixed on the first wire wheel (704), and an end point of the cable (712) is fixed on the second wire wheel (708).

7. The melting device for producing polypropylene fibers according to claim 1, characterized in that: The cooling device (8) comprises a sliding rod (801), a rotating block (802), an extrusion spring (803), an extrusion rod (804), a push rod (805), a water tank (806), a displacement rod (807), a pressure spring (808), a slide plate (809) and a nozzle (810), wherein the sliding rod (801) slides on the inner wall of the rotating rod (702), the rotating block (802) is fixed on the sliding rod (801), the extrusion spring (803) is fixed on the sliding rod (801), and the end point of the extrusion spring (803) is fixed on the inner wall of the rotating rod (702).

8. The melting device for producing polypropylene fibers according to claim 7, characterized in that: The extrusion rod (804) slides on the inner wall of the sliding frame (603); a push rod (805) is fixed on the sliding frame (603); an end point of the push rod (805) is sleeved on the sliding rod (801); a water tank (806) is fixed on the sliding frame (603); the displacement rod (807) passes through the side wall of the water tank (806) and is slidably connected at the penetration point; a pressure spring (808) is fixed on the displacement rod (807); an end point of the pressure spring (808) is fixed on the water tank (806); a slide plate (809) is fixed on the end point of the displacement rod (807); a partition is fixed on the inner wall of the water tank (806); the slide plate (809) slides on the partition of the water tank (806); and a nozzle (810) is fixed on the water tank (806).

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