Polyvinyl chloride plastic processing equipment and method

Abstract

The invention belongs to the technical field of polyvinyl chloride plastic processing, particularly relates to polyvinyl chloride plastic processing equipment and a polyvinyl chloride plastic processing method, and provides the following scheme aiming at the problem that the existing polyvinyl chloride plastic processing equipment cannot accurately control the adding amount of a stabilizer: the polyvinyl chloride plastic processing equipment comprises a barrel body, and the outer part of the barrel body is fixedly connected with a support frame; a top cover is fixedly connected to the upper side of the barrel, a rectangular opening is formed in the top cover, a feeding hopper is fixedly connected into the rectangular opening, a round hole is formed in the top cover, a weighing box is fixedly connected into the round hole, and a quantitative adding module is arranged on the weighing box. According to the polyvinyl chloride plastic processing equipment and method disclosed by the invention, the amount of a stabilizer added into the powder can be effectively controlled according to the amount of the polyvinyl chloride powder in the barrel, and excessive addition of the stabilizer is avoided while the production quality of polyvinyl chloride plastics is ensured, so that the production cost is controlled.

Description

Technical Field

[0001] The invention relates to the technical field of polyvinyl chloride plastic processing, and in particular to polyvinyl chloride plastic processing equipment and method. Background Art

[0002] Polyvinyl chloride (PVC) is an amorphous white powder with a low degree of branching, a relative density of about 1.4, a glass transition temperature of 77-90°C, and begins to decompose at about 170°C. It has poor stability to light and heat. At temperatures above 100°C or after prolonged exposure to sunlight, it will decompose to produce hydrogen chloride, and further autocatalytically decompose, causing discoloration and a rapid decline in physical and mechanical properties. In practical applications, stabilizers must be added to improve stability to heat and light.

[0003] Existing PVC plastic processing equipment cannot accurately control the amount of stabilizer added to PVC powder during the processing of PVC plastic products. Adding too much or too little stabilizer will lead to unstable quality of the produced PVC plastic products, which will greatly affect the overall quality and cost of PVC plastic products. Summary of the invention

[0004] The invention discloses a polyvinyl chloride plastic processing device and a method, aiming to solve the technical problem that the existing polyvinyl chloride plastic processing device in the background technology cannot accurately control the amount of stabilizer added.

[0005] The present invention provides a polyvinyl chloride plastic processing equipment, comprising a cylinder, a support frame is fixedly connected to the outside of the cylinder, a top cover is fixedly connected to the upper side of the cylinder, a rectangular opening is provided on the top cover, a feed hopper is fixedly connected in the rectangular opening, a round hole is provided on the top cover, a weighing box is fixedly connected in the round hole, a quantitative adding module is arranged on the weighing box, a uniform stirring module is arranged in the cylinder, a round groove is provided at the bottom of the cylinder, a discharge pipe is fixedly connected in the round groove, and an electronic valve is arranged on the discharge pipe; The weighing box comprises a fixed frame, the inner wall of the fixed frame is provided with two symmetrical chute, the two chute are slidably connected with the same weighing bucket, the weighing bucket is provided with a notch, the fixed frame is provided with a connecting groove, and the connecting groove and the notch are located on the same side; The uniform stirring module comprises a plurality of equally spaced inclined stirring rods and curved stirring rods.

[0006] By providing a cylinder, a top cover, a feed hopper, a weighing box, a quantitative adding module, a uniform stirring module, a discharge pipe and an electronic valve, the device utilizes the quantitative adding module to enable the device to effectively control the amount of stabilizer added to the powder according to the amount of polyvinyl chloride powder in the cylinder, while ensuring the production quality of polyvinyl chloride plastics, avoiding excessive addition of stabilizer, thereby controlling production costs.

[0007] In a preferred embodiment, a hole groove is provided on the upper side of the weighing box, an adding bucket is fixedly connected in the hole groove, an observation window is provided on the outside of the weighing box, an isolation block is fixedly connected to the inner wall of the weighing box, circular grooves are provided on the isolation block and the weighing box, the inner wall of the circular groove is movably connected to the outside of the fixed frame, and the upper side and bottom of the isolation block are provided with inclined grooves, and one side of the fixed frame is provided with a circular opening; a stabilizing seat is fixedly connected to the inner wall of the circular opening, a latch is inserted into the inner wall of the stabilizing seat, a side of the latch close to the weighing bucket is fixedly connected to the outside of the weighing bucket, a side of the weighing bucket away from the latch is fixedly connected to a handle, and a side of the weighing box close to the latch is fixedly connected to an arc-shaped piece, and a spring is fixedly connected to the outside of the arc-shaped piece; one end of the spring away from the arc-shaped piece is fixedly connected to a transmission handle, and the end of the transmission handle close to the fixed frame is connected to the fixed The outside of the fixed frame is fixedly connected, and a limit rod is fixedly connected to a side of the weighing box close to the latch, the limit rod is located below the latch, and three circumferentially equidistantly distributed grooves are provided on a side of the stable seat away from the weighing box; movable blocks are slidably connected in the three grooves, and a short shaft is fixedly connected to the side of the movable block away from the stable seat, and a rotating frame is movably connected to the side of the stable seat away from the weighing box, and three circumferentially equidistantly distributed curved grooves are provided on the rotating frame, and the inner walls of the three curved grooves are respectively slidably connected to the outside of the three short shafts; three circumferentially equidistantly distributed clamping grooves are provided on the outside of the latch, and the inner walls of the three clamping grooves are respectively clamped with the outside of the three movable blocks, and a coil spring is fixedly connected to the inner wall of the rotating frame, and one end of the coil spring away from the rotating frame is fixedly connected to the outside of the stable seat, and a lever is fixedly connected to the side of the rotating frame away from the stable seat.

[0008] By providing a quantitative adding module, the quantitative adding module can realize the rapid disassembly and installation of weighing buckets with different capacities by means of latches and movable blocks, so that the operator can quickly adapt the weighing bucket according to the added amount of polyvinyl chloride powder in the cylinder, thereby improving the operating efficiency and convenience; the device can be quickly reset after the addition of the stabilizer by means of a spring, a limit rod and a transmission handle, so that the fixed frame always remains in a closed state when no operation is performed, thereby avoiding the situation where the stabilizer in the weighing box continues to enter the cylinder.

[0009] In a preferred embodiment, a circular opening is provided on the top cover, in which a main shaft is movably connected, an electric motor is fixedly connected to the upper side of the top cover, an output end of the electric motor is connected to the upper side of the main shaft through a coupling, and four circumferentially equidistantly distributed fixing frames are fixedly connected to the inner wall of the cylinder; the four fixing frames are fixedly connected to the same inner gear ring on the side away from the cylinder, two symmetrical rotating rods are fixedly connected to the outside of the main shaft, two symmetrical fine holes are provided on the two rotating rods, the same secondary shaft is movably connected in the two fine holes on the same side, and openings are provided on the multiple inclined stirring rods on the same side, and the outside of the secondary shaft is fixedly connected to the multiple openings; the outsides of the two secondary shafts are fixedly connected to gears, both gears are meshed with the inner gear ring, and the outside of the main shaft is fixedly connected to a plurality of equidistantly distributed curved stirring rods, and the multiple curved stirring rods and the multiple inclined stirring rods are arranged alternately.

[0010] A uniform stirring module is provided, which uses a curved stirring rod rotating with the main shaft to initially stir the stabilizer and the polyvinyl chloride powder, and uses a circumferentially distributed inclined stirring rod with an inclined surface to stir the mixture, so that the mixture at the bottom of the cylinder is stirred again to the upper part by the inclined stirring rod, thereby improving the mixing effect of the stabilizer and the polyvinyl chloride powder.

[0011] A polyvinyl chloride plastic processing method, using the polyvinyl chloride plastic processing equipment as described above, comprises the following steps: Step 1: add a certain amount of polyvinyl chloride powder into the cylinder through the feed hopper box, replace the weighing hopper in the fixed frame according to the amount of powder added into the cylinder, inject stabilizer into the weighing box after replacement, and use the quantitative addition module to inject stabilizer into the cylinder once or multiple times; Step 2: After the polyvinyl chloride powder and stabilizer are injected, the mixture is fully stirred using a uniform stirring module. After stirring, the electronic valve is activated to discharge the mixture evenly from the discharge pipe.

[0012] From the above, it can be seen that the polyvinyl chloride plastic processing equipment provided by the present invention has the effect of enabling the device to effectively control the amount of stabilizer added to the powder according to the amount of polyvinyl chloride powder in the cylinder, while ensuring the production quality of the polyvinyl chloride plastic, avoiding excessive addition of stabilizer, thereby controlling the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a polyvinyl chloride plastic processing equipment proposed by the present invention; Figure 2 This is a cross-sectional structural schematic diagram of a polyvinyl chloride plastic processing equipment proposed by the present invention; Figure 3This is a schematic diagram of the structure of a quantitative addition module of a polyvinyl chloride plastic processing equipment proposed by the present invention; Figure 4 This is a schematic diagram of the isolation block structure of a polyvinyl chloride plastic processing equipment proposed by the present invention; Figure 5 This is a schematic diagram of the arc-shaped sheet structure of a polyvinyl chloride plastic processing equipment proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a stabilizing seat for polyvinyl chloride plastic processing equipment proposed by the present invention; Figure 7 This is a schematic structural diagram of a uniform stirring module of polyvinyl chloride plastic processing equipment proposed by the present invention.

[0014] In the figure: 1, cylinder; 2, support frame; 3, top cover; 4, feed hopper; 5, weighing box; 6, quantitative adding module; 601, adding hopper; 602, observation window; 603, isolation block; 604, inclined groove; 605, round groove; 606, fixing frame; 607, connecting groove; 608, slide; 609, weighing hopper; 610, groove; 611, handle; 612, round mouth; 613, stable seat; 614, latch; 615, arc piece; 616, transmission handle; 61 7. Spring; 618. Limit rod; 619. Cutting groove; 620. Movable block; 621. Short shaft; 622. Slot; 623. Rotating frame; 624. Curved groove; 625. Push rod; 626. Coil spring; 7. Uniform stirring module; 701. Main shaft; 702. Motor; 703. Rotating rod; 704. Secondary shaft; 705. Gear; 706. Fixed frame; 707. Internal gear ring; 708. Inclined stirring rod; 709. Curved stirring rod; 8. Discharge pipe; 9. Electronic valve. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] The polyvinyl chloride plastic processing equipment disclosed in the present invention is mainly used in the scenario where the existing polyvinyl chloride plastic processing equipment cannot accurately control the amount of stabilizer added.

[0017] Reference Figure 1-7A polyvinyl chloride plastic processing equipment comprises a cylinder 1, a support frame 2 is connected to the outside of the cylinder 1 by bolts, and a top cover 3 is connected to the upper side of the cylinder 1 by bolts, a rectangular opening is opened on the top cover 3, a feed hopper 4 is connected to the rectangular opening by bolts, a round hole is opened on the top cover 3, a weighing box 5 is connected to the round hole by bolts, a quantitative adding module 6 is arranged on the weighing box 5, and a uniform stirring module 7 is arranged in the cylinder 1, a round groove is opened at the bottom of the cylinder 1, a discharge pipe 8 is connected to the round groove by bolts, and an electronic valve 9 is arranged on the discharge pipe 8; The weighing box 5 includes a fixed frame 606, the inner wall of the fixed frame 606 is provided with two symmetrical chute 608, the two chute 608 are slidably connected with the same weighing bucket 609, the weighing bucket 609 is provided with a notch 610, the fixed frame 606 is provided with a connecting groove 607, and the connecting groove 607 and the notch 610 are located on the same side; The uniform stirring module 7 includes a plurality of equally spaced inclined stirring rods 708 and curved stirring rods 709 .

[0018] Specifically, a certain amount of polyvinyl chloride powder is added to the cylinder body 1 through the feed hopper 4, and the weighing hopper 609 in the fixed frame 606 is replaced according to the amount of powder added in the cylinder body 1. After replacement, the stabilizer is injected into the weighing box 5, and the stabilizer is injected into the cylinder body 1 once or multiple times using the quantitative adding module 6. After the polyvinyl chloride powder and the stabilizer are injected, the mixture is fully stirred using the uniform stirring module 7. After stirring, the electronic valve 9 is started to discharge the mixture uniformly from the discharge pipe 8. The device utilizes the quantitative adding module 6 to enable the device to effectively control the amount of stabilizer added to the powder according to the amount of polyvinyl chloride powder in the cylinder body 1, thereby ensuring the production quality of polyvinyl chloride plastics and avoiding excessive addition of stabilizer, thereby controlling production costs.

[0019] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6In a preferred embodiment, a hole groove is provided on the upper side of the weighing box 5, and a adding bucket 601 is connected to the hole groove by bolts. An observation window 602 is provided on the outside of the weighing box 5, and an isolation block 603 is connected to the inner wall of the weighing box 5 by bolts. A circular groove 605 is provided on the isolation block 603 and the weighing box 5, and the inner wall of the circular groove 605 is rotatably connected to the outside of the fixed frame 606 by a bearing, and an inclined groove 604 is provided on the upper side and the bottom of the isolation block 603, and a circular opening 612 is provided on one side of the fixed frame 606; the inner wall of the circular opening 612 is screwed The bolt is connected with a stable seat 613, and a latch 614 is inserted into the inner wall of the stable seat 613. The side of the latch 614 close to the weighing bucket 609 is connected to the outside of the weighing bucket 609 by bolts. The side of the weighing bucket 609 away from the latch 614 is connected to a handle 611 by bolts, and the side of the weighing box 5 close to the latch 614 is connected to an arc piece 615 by bolts, and the outside of the arc piece 615 is connected to a spring 617 by bolts; the end of the spring 617 away from the arc piece 615 is connected to a transmission handle 616 by bolts, and the transmission handle 616 is close to the fixed frame 606. The end is connected to the outside of the fixed frame 606 by bolts, the side of the weighing box 5 close to the latch 614 is connected to a limit rod 618 by bolts, the limit rod 618 is located below the latch 614, and the side of the stable seat 613 away from the weighing box 5 is provided with three circumferentially equidistantly distributed grooves 619; the three grooves 619 are all slidably connected with movable blocks 620, and the side of the movable block 620 away from the stable seat 613 is connected to a short shaft 621 by bolts, and the side of the stable seat 613 away from the weighing box 5 is rotatably connected to a rotating frame 623 through a bearing, and the rotating frame 623 is Three circumferentially equidistantly distributed curved grooves 624 are provided, and the inner walls of the three curved grooves 624 are slidably connected to the outside of the three short shafts 621 respectively; three circumferentially equidistantly distributed clamping grooves 622 are provided on the outside of the latch 614, and the inner walls of the three clamping grooves 622 are clamped to the outside of the three movable blocks 620 respectively, and the inner wall of the rotating frame 623 is connected to a coil spring 626 by bolts, and the end of the coil spring 626 away from the rotating frame 623 is connected to the outside of the stable seat 613 by bolts, and the side of the rotating frame 623 away from the stable seat 613 is connected to a lever 625 by bolts.

[0020] Specifically, after adding the polyvinyl chloride powder into the cylinder 1, select a weighing bucket 609 of appropriate capacity according to the amount of polyvinyl chloride powder in the cylinder 1, and turn the lever 625 to make the lever 625 drive the rotating frame 623 to rotate, so that the curved groove 624 pushes the short shaft 621 and drives the movable block 620 to slide outward, so that the movable block 620 releases the lock on the latch 614, grab the handle 611 to pull the weighing bucket 609 out of the fixed frame 606, insert the weighing bucket 609 with appropriate capacity into the fixed frame 606, and rotate the rotating frame 623 again so that the latch 614 can be completely released. Fully insert it into the stabilizing seat 613, release the rotating frame 623, and under the torsion of the coil spring 626, reinsert the movable block 620 into the slot 622, lock the weighing bucket 609 in the fixed frame 606, inject the stabilizer into the weighing box 5 through the adding bucket 601, and rotate the transmission handle 616 to overcome the pulling force of the spring 617, so that the transmission handle 616 drives the fixed frame 606 to rotate one hundred and eighty degrees, so that the stabilizer flowing into the slot 610 from the upper part of the weighing box 5 can flow from the inclined groove 604 at the bottom of the isolation block 603, for example, into the cylinder 1, thereby adding the stabilizer into the polyvinyl chloride powder.

[0021] In a specific application scenario, the quantitative addition module 6 is mainly suitable for the quantitative addition link in the quantitative addition process, that is, the quantitative addition module 6 can use the latch 614 and the movable block 620 to realize the rapid disassembly and installation of the weighing bucket 609 with different capacities, so that the operator can quickly adapt the weighing bucket 609 according to the addition amount of the polyvinyl chloride powder in the cylinder 1, thereby improving the operating efficiency and convenience.

[0022] It should be noted that the spring 617, the limit rod 618 and the transmission handle 616 can be used to quickly reset the device after adding the stabilizer, so that the fixed frame 606 always remains in a closed state when not in operation, thereby avoiding the stabilizer in the weighing box 5 from continuously entering the cylinder 1.

[0023] Reference Figure 7In a preferred embodiment, a circular opening is provided on the top cover 3, and a main shaft 701 is rotatably connected to the circular opening through a bearing, a motor 702 is connected to the upper side of the top cover 3 through bolts, and the output end of the motor 702 is connected to the upper side of the main shaft 701 through a coupling, and the inner wall of the cylinder 1 is connected to four circumferentially equidistantly distributed fixing frames 706 through bolts; the four fixing frames 706 are connected to the same inner gear ring 707 through bolts on the side away from the cylinder 1, and two symmetrical rotating rods 703 are connected to the outside of the main shaft 701 through bolts, and the two rotating rods 703 Two symmetrical fine holes are provided on each of the two shafts, and a same secondary shaft 704 is rotatably connected to the two fine holes on the same side through bearings, and openings are provided on the multiple inclined stirring rods 708 on the same side, and the outside of the secondary shaft 704 is connected to the multiple openings through bolts; the outsides of the two secondary shafts 704 are connected to gears 705 through bolts, and the two gears 705 are meshed with the inner gear ring 707, and the outside of the main shaft 701 is connected to multiple equidistantly distributed curved stirring rods 709 through bolts, and the multiple curved stirring rods 709 and the multiple inclined stirring rods 708 are arranged alternately.

[0024] Specifically, after the stabilizer enters the cylinder 1, the motor 702 is started, and the motor 702 drives the main shaft 701 to rotate, so that the curved stirring rod 709 on the main shaft 701 stirs the stabilizer and polyvinyl chloride powder in the cylinder 1, and the rotating rod 703 on the main shaft 701 rotates synchronously with the main shaft 701, and the gear 705 is meshed and rotated with the inner gear ring 707, so that the secondary shaft 704 drives the inclined stirring rod 708 to rotate, thereby further stirring the mixture.

[0025] In a specific application scenario, the uniform stirring module 7 is mainly suitable for the uniform stirring link in the uniform stirring process, that is, the uniform stirring module 7 uses the curved stirring rod 709 rotating with the main shaft 701 to perform preliminary stirring on the stabilizer and the polyvinyl chloride powder, and uses the inclined stirring rod 708 with an inclined surface distributed in a circle to stir the mixture, so that the mixture at the bottom of the cylinder 1 is re-stirred to the upper part by the inclined stirring rod 708, thereby improving the mixing effect of the stabilizer and the polyvinyl chloride powder.

[0026] A polyvinyl chloride plastic processing method, using the polyvinyl chloride plastic processing equipment as described above, comprises the following steps: Step 1: add a certain amount of polyvinyl chloride powder into the cylinder 1 through the feed hopper 4. According to the amount of powder added into the cylinder 1, replace the weighing hopper 609 in the fixed frame 606. After replacement, inject stabilizer into the weighing box 5. Use the quantitative adding module 6 to inject stabilizer into the cylinder 1 once or multiple times (after adding the polyvinyl chloride powder into the cylinder 1, select a weighing hopper 609 of appropriate capacity according to the amount of polyvinyl chloride powder in the cylinder 1, and move the lever 625 to drive the rotating frame 623 to rotate, so that the curved groove 624 pushes the short shaft 621 and drives the movable block 620 to slide outward, so that the movable block 620 releases the lock on the latch 614, and grabs the handle 611 to remove the weighing hopper 609 from the fixed frame 606. The weighing bucket 609 with a suitable capacity is pulled out from the weighing box 5, and the weighing bucket 609 with a suitable capacity is inserted into the fixed frame 606. The rotating frame 623 is rotated again so that the latch 614 can be completely inserted into the stabilizing seat 613. The rotating frame 623 is released. Under the torsion of the coil spring 626, the movable block 620 is reinserted into the slot 622 to lock the weighing bucket 609 in the fixed frame 606. The stabilizer is injected into the weighing box 5 through the adding bucket 601. The transmission handle 616 is rotated to overcome the pulling force of the spring 617, so that the transmission handle 616 drives the fixed frame 606 to rotate 180 degrees, so that the stabilizer flowing into the notch 610 from the upper part of the weighing box 5 can flow from the inclined groove 604 at the bottom of the isolation block 603 to the cylinder 1, so that the stabilizer is added to the polyvinyl chloride powder); Step 2: After the polyvinyl chloride powder and stabilizer are injected, the mixture is fully stirred using the uniform stirring module 7. After stirring, the electronic valve 9 is started to discharge the mixture uniformly from the discharge pipe 8 (after the stabilizer enters the cylinder 1, the motor 702 is started, and the motor 702 drives the main shaft 701 to rotate, so that the curved stirring rod 709 on the main shaft 701 stirs the stabilizer and polyvinyl chloride powder in the cylinder 1, and the rotating rod 703 on the main shaft 701 rotates synchronously with the main shaft 701, and the gear 705 is meshed and rotated with the inner gear ring 707, so that the secondary shaft 704 drives the inclined stirring rod 708 to rotate, thereby further stirring the mixture. After stirring, the electronic valve 9 is started to discharge the mixture uniformly from the discharge pipe 8).

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polyvinyl chloride plastic processing device, comprising a cylinder (1), characterized in that: The outside of the cylinder (1) is fixedly connected to a support frame (2), and the upper side of the cylinder (1) is fixedly connected to a top cover (3), the top cover (3) is provided with a rectangular opening, a feed hopper (4) is fixedly connected inside the rectangular opening, the top cover (3) is provided with a circular hole, a weighing box (5) is fixedly connected inside the circular hole, a quantitative addition module (6) is arranged on the weighing box (5), and a uniform stirring module (7) is arranged inside the cylinder (1), a circular groove is provided at the bottom of the cylinder (1), a discharge pipe (8) is fixedly connected inside the circular groove, and an electronic valve (9) is arranged on the discharge pipe (8); The weighing box (5) comprises a fixed frame (606), the inner wall of the fixed frame (606) is provided with two symmetrical slide grooves (608), a weighing bucket (609) is slidably connected in the two slide grooves (608), a notch (610) is provided on the weighing bucket (609), a connecting groove (607) is provided on the fixed frame (606), and the connecting groove (607) and the notch (610) are located on the same side; The uniform stirring module (7) comprises a plurality of equally spaced inclined stirring rods (708) and curved stirring rods (709).

2. A polyvinyl chloride plastic processing equipment according to claim 1, characterized in that: The weighing box (5) has a hole groove on its upper side, a adding bucket (601) is fixedly connected in the hole groove, an observation window (602) is provided on the outside of the weighing box (5), an isolation block (603) is fixedly connected to the inner wall of the weighing box (5), circular grooves (605) are provided on the isolation block (603) and the weighing box (5), the inner wall of the circular groove (605) is movably connected to the outside of the fixed frame (606), the upper side and the bottom of the isolation block (603) are provided with inclined grooves (604), and a circular opening (612) is provided on one side of the fixed frame (606).

3. A polyvinyl chloride plastic processing equipment according to claim 2, characterized in that: The inner wall of the circular opening (612) is fixedly connected to a stabilizing seat (613), the inner wall of the stabilizing seat (613) is plugged with a latch (614), a side of the latch (614) close to the weighing bucket (609) is fixedly connected to the outside of the weighing bucket (609), a side of the weighing bucket (609) away from the latch (614) is fixedly connected to a handle (611), and a side of the weighing box (5) close to the latch (614) is fixedly connected to an arc-shaped piece (615), and a spring (617) is fixedly connected to the outside of the arc-shaped piece (615).

4. A polyvinyl chloride plastic processing equipment according to claim 3, characterized in that: One end of the spring (617) away from the arc-shaped piece (615) is fixedly connected to a transmission handle (616), and one end of the transmission handle (616) close to the fixed frame (606) is fixedly connected to the outside of the fixed frame (606). A side of the weighing box (5) close to the latch (614) is fixedly connected to a limit rod (618), and the limit rod (618) is located below the latch (614). Three circumferentially equidistantly distributed grooves (619) are provided on a side of the stabilizing seat (613) away from the weighing box (5).

5. The polyvinyl chloride plastic processing equipment according to claim 4, characterized in that: The three cutting grooves (619) are all slidably connected with movable blocks (620), and the side of the movable blocks (620) away from the stable seat (613) is fixedly connected with a short shaft (621), and the side of the stable seat (613) away from the weighing box (5) is movably connected with a rotating frame (623), and the rotating frame (623) is provided with three circumferentially equidistantly distributed curved grooves (624), and the inner walls of the three curved grooves (624) are respectively slidably connected to the outside of the three short shafts (621).

6. The polyvinyl chloride plastic processing equipment according to claim 5, characterized in that: The latch (614) is provided with three circumferentially equidistantly distributed slots (622) on the outside, the inner walls of the three slots (622) are respectively engaged with the outsides of the three movable blocks (620), and a coil spring (626) is fixedly connected to the inner wall of the rotating frame (623), one end of the coil spring (626) away from the rotating frame (623) is fixedly connected to the outside of the stable seat (613), and a lever (625) is fixedly connected to one side of the rotating frame (623) away from the stable seat (613).

7. The polyvinyl chloride plastic processing equipment according to claim 6, characterized in that: The top cover (3) is provided with a circular opening, in which a main shaft (701) is movably connected, an electric motor (702) is fixedly connected to the upper side of the top cover (3), an output end of the electric motor (702) is connected to the upper side of the main shaft (701) via a coupling, and four circumferentially equidistantly distributed fixing frames (706) are fixedly connected to the inner wall of the cylinder (1).

8. The polyvinyl chloride plastic processing equipment according to claim 7, characterized in that: The four fixing frames (706) are fixedly connected to a same internal gear ring (707) on a side away from the cylinder (1); two symmetrical rotating rods (703) are fixedly connected to the outside of the main shaft (701); two symmetrical fine holes are provided on each of the two rotating rods (703); a same secondary shaft (704) is movably connected in the two fine holes located on the same side; openings are provided on a plurality of inclined stirring rods (708) located on the same side; and the outside of the secondary shaft (704) is fixedly connected to the plurality of openings.

9. The polyvinyl chloride plastic processing equipment according to claim 8, characterized in that: The exterior of the two secondary shafts (704) is fixedly connected to a gear (705), and the two gears (705) are meshed with an internal gear ring (707). The exterior of the main shaft (701) is fixedly connected to a plurality of equally spaced curved stirring rods (709), and the plurality of curved stirring rods (709) and the plurality of inclined stirring rods (708) are arranged in an alternating manner.

10. A polyvinyl chloride plastic processing method, using the polyvinyl chloride plastic processing equipment as claimed in claim 9, characterized in that: The steps include: Step 1: Add a certain amount of polyvinyl chloride powder into the cylinder (1) through the feed hopper (4); replace the weighing hopper (609) in the fixed frame (606) according to the amount of powder added into the cylinder (1); after replacement, inject stabilizer into the weighing box (5); and use the quantitative addition module (6) to inject stabilizer into the cylinder (1) once or multiple times; Step 2: After the polyvinyl chloride powder and the stabilizer are injected, the mixture is fully stirred using a uniform stirring module (7). After stirring, the electronic valve (9) is activated to discharge the mixture uniformly from the discharge pipe (8).

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