Mixing device and mixing method for PVC (polyvinyl chloride) modified material

Abstract

The invention relates to the technical field of PVC mixing, in particular to a PVC modified material mixing device and method. The material mixing box is fixedly mounted on the rack; the material mixing mechanism is used for mixing PVC particle raw materials and liquid raw materials; the material mixing mechanism comprises a movable pipe rotationally mounted on the material mixing box; the material mixing plate is rotationally mounted on the movable pipe; the power source I is used for driving the mixing plate to rotate; the power source II is fixedly mounted in the movable pipe; the driving bevel gear is coaxially connected with an output shaft of the power source II; the driven bevel gear is in meshed connection with the driving bevel gear; and the driven bevel gear is coaxially connected with the material mixing plate. According to the PVC raw material mixing device disclosed by the invention, through the arrangement of the material mixing mechanism, the PVC raw materials can be mixed in the circumferential direction and also can be mixed in the axial direction, so that the mixing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of PVC mixing, and particularly relates to a mixing device and a mixing method for a PVC modified material. Background Art

[0002] Polyvinyl chloride, abbreviated as PVC in English, is a polymer formed by the polymerization of vinyl chloride monomers under the action of initiators such as peroxides and azo compounds or under the action of light and heat according to the free radical polymerization reaction mechanism. It has a wide range of applications in building materials, industrial products, daily necessities, floor coverings, floor tiles, artificial leather, pipes, wire and cable, packaging films, bottles, foaming materials, sealing materials, fibers, etc.

[0003] When making PVC products, it is necessary to uniformly mix PVC masterbatch, plasticizer, stabilizer or pigment, etc.

[0004] A Chinese patent with the application number CN202311100413.2 discloses a PVC mixing device convenient for adjusting batching, which relates to the technical field of PVC processing equipment. It includes a mixing tank, a guide bucket is fixedly connected to the top of the mixing tank, an adjusting hopper is arranged inside the guide bucket, a fixed frame is fixedly connected to the top of the mixing tank, a unidirectional threaded screw rod is rotatably connected inside the fixed frame, a traction rod is sleeved on the outer wall of the unidirectional threaded screw rod, a pull-swing shaker; a compression auxiliary member; an impact connection assembly. By setting the pull-swing shaker, the connecting shell continuously swings, so that the materials entering the premixing box are shaken, and thus the effect of premixing various materials is achieved. The shaken materials enter the centrifugal box, and under the action of the centrifugal force generated by the rotation of the centrifugal box, the materials are thrown into the mixing tank, so as to avoid excessive adhesion of the materials piled up in one place, and thus improve the mixing effect of the materials.

[0005] However, when the mixing device in the above patent is used, the stirring rod can only mix the materials circumferentially, and the stirring direction is fixed, which affects the mixing uniformity of the materials.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above defects. Summary of the Invention

[0007] The purpose of the present invention is to provide a mixing device and a mixing method for a PVC modified material that can effectively solve the above technical problems.

[0008] To achieve the purpose of the present invention, the following technical solutions are adopted:

[0009] A mixing device and a mixing method for a PVC modified material, including: a frame; a mixing box fixedly installed on the frame; a mixing mechanism for mixing PVC particle raw materials and liquid raw materials;

[0010] The mixing mechanism includes: a movable pipe rotatably installed on the mixing box; a mixing plate rotatably installed on the movable pipe; a first power source for driving the mixing plate to rotate; a second power source fixedly installed inside the movable pipe; a driving bevel gear coaxially connected to the output shaft of the second power source; a driven bevel gear meshed with the driving bevel gear; and the driven bevel gear is coaxially connected to the mixing plate.

[0011] Furthermore, it further includes: a feeding mechanism for conveying PVC particle raw materials into the mixing box;

[0012] The feeding mechanism includes: a storage tank fixedly installed on the frame; a pumping pump; a rotating pipe communicated with the feeding end of the pumping pump; a discharging head communicated with the discharging end of the pumping pump; and a first premixing assembly for preprocessing the PVC particle raw materials in the storage tank.

[0013] Furthermore, the first premixing assembly includes: a guiding groove for guiding the movement of the rotating pipe; a stirring plate fixedly installed on the rotating pipe; a tooth block fixedly installed in the guiding groove; a transmission gear fixedly sleeved on the rotating pipe; a limiting member for limiting the movement of the rotating pipe when it moves; the rotating pipe is slidably installed in the guiding groove; and the transmission gear is meshed with the tooth block.

[0014] Furthermore, the limiting member includes: a limiting groove opened along the path of the guiding groove; a movable block rotatably installed on the rotating pipe; and the movable block is slidably installed in the limiting groove.

[0015] Furthermore, it further includes: a liquid supply mechanism for conveying PVC liquid raw materials into the mixing box;

[0016] The liquid supply mechanism includes: a liquid collecting pipe fixedly installed on the frame; a liquid storage tank, an atomizing nozzle communicated with the liquid collecting pipe; a moving pipe movably installed in the liquid collecting pipe; a piston fixedly sleeved on the moving pipe; a moving frame fixedly connected to the end of the moving pipe; a return spring for driving the moving frame to reset; and a second premixing assembly for preprocessing the PVC liquid raw materials in the storage tank.

[0017] Furthermore, the second premixing assembly includes: a rotating rod rotatably installed in the liquid collecting pipe; a stirring blade fixedly installed on the rotating rod; a rolling member rotatably installed on the rotating rod; a guiding groove opened in the moving pipe; and the rolling member is rollingly installed in the guiding groove.

[0018] Furthermore, it further includes: a driving mechanism for driving the first premixing assembly and the second premixing assembly to run synchronously;

[0019] The driving mechanism includes: a reciprocating lead screw rotatably mounted on the frame; a movable seat threadedly connected to the reciprocating lead screw; a limiting rod for limiting the movable seat; a sliding groove formed on the movable seat; a movable frame slidably mounted in the sliding groove; and a linkage member for linking the first power source and the reciprocating lead screw; the movable frame is rotatably connected to the rotating pipe.

[0020] Further, it further includes: a swinging mechanism for driving the discharge head and the atomizing nozzle to swing synchronously;

[0021] The swinging mechanism includes: a swinging rod rotatably mounted on the movable seat; a linkage gear fixedly sleeved on the swinging rod; a linkage rack meshed with the linkage gear; the linkage rack is fixedly connected to the movable frame.

[0022] Further, it includes the following steps:

[0023] Step S1: Feed PVC granular raw materials into the storage tank and PVC liquid raw materials into the liquid storage tank. The PVC granular raw materials are premixed under the rotation of the stirring plate, and the PVC liquid raw materials are premixed under the rotation of the stirring blades;

[0024] Step S2: Simultaneously transport the premixed PVC granular raw materials and PVC liquid raw materials to the mixing tank;

[0025] Step S3: The PVC granular raw materials and PVC liquid raw materials are uniformly mixed under the rotation of the mixing plate;

[0026] Step S4: Take out the PVC raw materials after mixing is completed.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The mixing device and mixing method for a PVC modified material of the present invention can, through the setting of the mixing mechanism, not only perform circumferential mixing on the PVC raw materials, but also perform axial mixing on the PVC raw materials, thereby improving the mixing effect. Description of the Drawings

[0029] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0030] Figure 1 It is a three-dimensional schematic diagram of a mixing device and mixing method for a PVC modified material of the present invention;

[0031] Figure 2 It is a three-dimensional schematic diagram of the component mixing tank of a mixing device and mixing method for a PVC modified material of the present invention;

[0032] Figure 3 Schematic three-dimensional view of the component fixing plate of the mixing device and mixing method for a PVC modified material according to the present invention;

[0033] Figure 4 Schematic sectional view of the component fixing plate of the mixing device and mixing method for a PVC modified material according to the present invention;

[0034] Figure 5 For the mixing device and mixing method for a PVC modified material according to the present invention Figure 4 Enlarged view at A in;

[0035] Figure 6 Schematic plan view of the component movable block of the mixing device and mixing method for a PVC modified material according to the present invention;

[0036] Figure 7 Schematic sectional view of the component liquid collecting pipe of the mixing device and mixing method for a PVC modified material according to the present invention;

[0037] Figure 8 Schematic plan view of the component movable pipe of the mixing device and mixing method for a PVC modified material according to the present invention.

[0038] In the figure:

[0039] 1. Frame; 2. Mixing tank; 3. Mixing mechanism; 31. Movable pipe; 32. Mixing plate; 33. Power source one; 34. Power source two; 35. Driving bevel gear; 36. Driven bevel gear; 4. Feeding mechanism; 41. Storage tank; 42. Extraction pump; 43. Rotating pipe; 44. Discharge head; 45. Premixing component one; 451. Fixing plate; 452. Guide groove; 453. Stirring plate; 454. Tooth block; 455. Driving gear; 456. Limiting member; 4561. Limiting groove; 4562. Movable block; 5. Liquid supply mechanism; 51. Liquid collecting pipe; 52. Liquid storage tank; 53. Atomizing nozzle; 54. Moving pipe; 55. Piston; 56. Moving frame; 57. Return spring; 58. Premixing component two; 581. Rotating rod; 582. Stirring blade; 583. Rolling member; 584. Guide groove; 6. Driving mechanism; 61. Reciprocating lead screw; 62. Movable seat; 63. Limiting rod; 64. Movable frame; 65. Linking member; 7. Oscillating mechanism; 71. Oscillating rod; 72. Linking gear; 73. Linking rack. Detailed implementation manners

[0040] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the protection scope of the present invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0042] As Figures 1 to 8 shown, a mixing device and a mixing method for a PVC modified material of the present invention include: a frame 1; a mixing tank 2 fixedly installed on the frame 1; and a mixing mechanism 3 for mixing PVC particle raw materials and liquid raw materials.

[0043] The PVC particle raw materials include: a PVC resin base material, a filler and a reinforcing material, a modified resin blend, and a processing aid;

[0044] The PVC liquid raw materials include: a heat stabilizer, a plasticizer, and a lubricant.

[0045] The mixing mechanism 3 includes: a movable pipe 31 rotatably installed on the mixing tank 2; a mixing plate 32 rotatably installed on the movable pipe 31; a first power source 33 for driving the mixing plate 32 to rotate, and the first power source 33 is fixedly installed on the frame 1; a second power source 34 fixedly installed in the movable pipe 31; a driving bevel gear 35 coaxially connected to the output shaft of the second power source 34; a driven bevel gear 36 meshed with the driving bevel gear 35; and the driven bevel gear 36 is coaxially connected to the mixing plate 32.

[0046] After the PVC particle raw materials and the liquid raw materials are transported into the mixing tank 2, the first power source 33 is started to drive the movable pipe 31 to rotate, and the movable pipe 31 drives the mixing plate 32 to rotate, so as to mix the PVC particle raw materials and the liquid raw materials.

[0047] Since the PVC particle raw materials and the liquid raw materials entering the mixing tank 2 are in a premixed state, it is convenient for the mixing plate 32 to mix the PVC particle raw materials and the liquid raw materials evenly, improving the mixing effect.

[0048] Meanwhile, start the power source two 34 to drive the driving bevel gear 35 to rotate. The driving bevel gear 35 drives the driven bevel gear 36 to rotate, thereby driving the mixing plate 32 to rotate, so that the mixing plate 32 rotates to a certain angle, ensuring that the PVC particle raw materials and liquid raw materials flow and mix fully in the mixing tank 2, and further improving the mixing effect.

[0049] In addition, as Figure 8 shown, multiple groups of mixing plates 32 are provided, and they are symmetrically arranged left and right with the center of the movable pipe 31. Two sets of power source two 34, driving bevel gear 35, and driven bevel gear 36 for adjusting the rotation angle of the mixing plate 32 are provided, respectively controlling the same number of mixing plates 32 on the left and right sides.

[0050] When the rotation directions of the mixing plates 32 on the left and right sides are the same, the PVC raw materials in the mixing tank 2 can be moved to one side simultaneously. When the rotation directions of the mixing plates 32 on the left and right sides are opposite, the PVC raw materials in the mixing tank 2 can be moved to the middle simultaneously, or to both sides simultaneously; thus, while circumferentially mixing the PVC raw materials, the PVC raw materials can also be axially mixed, further improving the mixing effect.

[0051] It is supplemented here that the power source one 33 and the power source two 34 are both preferably motors.

[0052] In the present invention, through the setting of the mixing mechanism 3, the PVC raw materials can be circumferentially mixed and axially mixed at the same time, thereby improving the mixing effect.

[0053] It further includes: a feeding mechanism 4 for conveying PVC particle raw materials into the mixing tank 2; the feeding mechanism 4 includes: a storage tank 41 fixedly installed on the frame 1; a pumping pump 42 fixedly installed on the movable seat 62; a rotating pipe 43 communicated with the feeding end of the pumping pump 42; a discharging head 44 communicated with the discharging end of the pumping pump 42; and a premixing component one 45 for preprocessing the PVC particle raw materials in the storage tank 41.

[0054] When the PVC particle raw materials are conveyed into the storage tank 41, start the pumping pump 42, so that the PVC particle raw materials in the storage tank 41 enter the pumping pump 42 through the rotating pipe 43, are conveyed to the discharging head 44, discharged through the discharging head 44, and fall into the mixing tank 2.

[0055] It also includes: a liquid supply mechanism 5 for conveying the PVC liquid raw material to the mixing tank 2; the liquid supply mechanism 5 includes: a liquid collecting pipe 51 fixedly installed on the frame 1; a liquid storage tank 52 and an atomizing nozzle 53 communicated with the liquid collecting pipe 51. The liquid collecting pipe 51 is communicated with the liquid storage tank 52 through a liquid inlet pipe, and a check valve one is installed on the liquid inlet pipe. The liquid collecting pipe 51 is communicated with the atomizing nozzle 53 through a liquid outlet pipe, and a check valve two is installed on the liquid outlet pipe; a moving pipe 54 movably installed in the liquid collecting pipe 51; a piston 55 fixedly sleeved on the moving pipe 54, and the piston 55 is slidably installed in the liquid collecting pipe 51; a moving frame 56 fixedly connected to the end of the moving pipe 54, the moving frame 56 is slidably installed on the frame 1, and the liquid storage tank 52 is fixedly connected to the moving frame 56; a return spring 57 for driving the moving frame 56 to reset, one end of the return spring 57 is fixedly connected to the frame 1, and the other end of the return spring 57 is fixedly connected to the moving frame 56; and a premixing component two 58 for preprocessing the PVC liquid raw material in the storage tank 41.

[0056] When the PVC liquid raw material is conveyed into the mixing tank 2, when the driving mechanism 6 squeezes the moving frame 56, the moving frame 56 moves axially along the liquid collecting pipe 51 and drives the return spring 57 to compress. When the driving mechanism 6 does not squeeze the moving frame 56, through the elastic force of the return spring 57, the moving frame 56 can be driven to reset, so that the moving frame 56 makes a reciprocating movement axially along the liquid collecting pipe 51.

[0057] The moving frame 56 drives the moving pipe 54 to make a reciprocating movement axially along the liquid collecting pipe 51, and then drives the piston 55 to make a reciprocating movement axially along the liquid collecting pipe 51. When the driving mechanism 6 squeezes the moving frame 56, the piston 55 can squeeze the PVC liquid raw material in the liquid collecting pipe 51. At this time, the check valve one is closed and the check valve two is opened. The PVC liquid raw material enters the atomizing nozzle 53 through the liquid outlet pipe and is sprayed in the mixing tank 2 through the atomizing nozzle 53.

[0058] When the driving mechanism 6 does not squeeze the moving frame 56, through the elastic force of the return spring 57, the moving frame 56 can be driven to reset, thereby driving the piston 55 to reset. At this time, the check valve one is opened and the check valve two is closed. The PVC liquid raw material enters the liquid collecting pipe 51 through the liquid inlet pipe to prepare for subsequent use.

[0059] Through the reciprocating movement of the piston 55, the PVC liquid raw material can be continuously conveyed into the mixing tank 2.

[0060] It should be added here that since the liquid storage tank 52 is fixedly connected to the moving frame 56, the reciprocating movement of the moving frame 56 can drive the PVC liquid raw material in the liquid storage tank 52 to reciprocate and shake, thus playing a role in preliminarily premixing the PVC liquid raw material.

[0061] It further includes: a driving mechanism 6 for driving the premixing component I 45 and the premixing component II 58 to operate synchronously; the driving mechanism 6 includes: a reciprocating screw rod 61 rotatably installed on the frame 1; a movable seat 62 threadedly connected to the reciprocating screw rod 61; a limiting rod 63 for limiting the movable seat 62, the limiting rod 63 penetrates the side wall of the movable seat 62, and the limiting rod 63 is fixedly installed on the frame 1, so as to limit the movable seat 62 and enable the movable seat 62 to move axially along the reciprocating screw rod 61; a chute opened on the movable seat 62; a movable frame 64 slidably installed in the chute; and a linkage member 65 connecting the driving power source I 33 and the reciprocating screw rod 61; the movable frame 64 is rotatably connected to the rotating pipe 43.

[0062] The linkage member 65 is preferably a synchronous pulley and a synchronous belt.

[0063] When the driving power source I 33 is started, it can drive the linkage member 65 to operate, thereby driving the reciprocating screw rod 61 to rotate. The reciprocating screw rod 61 drives the movable seat 62 to reciprocate axially along the reciprocating screw rod 61, so as to drive the movable frame 64 to reciprocate axially along the reciprocating screw rod 61. The movable frame 64 can drive the rotating pipe 43 to reciprocate axially along the reciprocating screw rod 61. Since the movable frame 64 is slidably connected to the movable seat 62, the rotating pipe 43 moves along the path of the guiding groove 452, so as to enable the edge of the movable frame 64 to reciprocate axially along the reciprocating screw rod 61 and move along the path of the guiding groove 452.

[0064] When the movable frame 64 moves along the path of the guiding groove 452, it can intermittently squeeze the movable frame 56, so as to enable the movable frame 56 to reciprocate axially along the liquid collecting pipe 51.

[0065] In the present invention, through the arrangement of the driving mechanism 6, the premixing component I 45, the liquid supply mechanism 5, and the swinging mechanism 7 can be synchronously driven to operate, thereby realizing the premixing of the PVC granular raw material, the transportation of the PVC liquid raw material, the premixing of the PVC liquid raw material, and driving the discharging head 44 and the atomizing nozzle 53 to reciprocate axially along the reciprocating screw rod 61, so that the discharging head 44 and the atomizing nozzle 53 swing reciprocally and move axially along the reciprocating screw rod 61, thereby expanding the distribution range of the PVC granular raw material and the liquid raw material in the mixing tank 2, which is beneficial to the full mixing of the PVC granular raw material and the liquid raw material.

[0066] The premixing component 45 includes: a fixed plate 451 fixedly installed on the frame 1; a guiding groove 452 for guiding the movement of the rotating pipe 43, the guiding groove 452 is opened on the fixed plate 451, and the guiding groove 452 is a waveform groove with uniform waveform; a stirring plate 453 fixedly installed on the rotating pipe 43, a tooth block 454 fixedly installed in the guiding groove 452, there are several tooth blocks 454, and they are arranged along one side of the inner wall of the guiding groove 452; a transmission gear 455 fixedly sleeved on the rotating pipe 43; a limiting member 456 for limiting the movement of the rotating pipe 43 when it moves; the rotating pipe 43 is slidably installed in the guiding groove 452; the transmission gear 455 is meshed with the tooth block 454; the limiting member 456 includes: a limiting groove 4561 opened along the path of the guiding groove 452, the limiting groove 4561 is opened on the inner wall of the guiding groove 452;; a movable block 4562 rotatably installed on the rotating pipe 43, the movable block 4562 is in the shape of a circular roller; the movable block 4562 is slidably installed in the limiting groove 4561.

[0067] Since the limiting groove 4561 is opened along the path of the guiding groove 452 on the inner wall of the guiding groove 452, as shown in the appendix Figure 4 As shown, there are two limiting grooves 4561, and the two limiting grooves 4561 are interconnected. The movable block 4562 is simultaneously slidably installed in the two limiting grooves 4561, thus playing a role in limiting the movement of the rotating pipe 43, so that the rotating pipe 43 always moves along the center of the path of the guiding groove 452.

[0068] When the driving mechanism 6 is started, it can drive the rotating pipe 43 to reciprocate along the path of the guiding groove 452. Since the transmission gear 455 is meshed with the tooth block 454, the rotating pipe 43 can be driven to rotate, and then the stirring plate 453 can be driven to rotate. Through the rotation of the stirring plate 453, the PVC particle raw materials in the storage tank 41 can be stirred.

[0069] Moreover, the rotating pipe 43 drives the stirring plate 453 to reciprocate along the path of the guiding groove 452 and drives the stirring plate 453 to rotate at the same time, thereby expanding the stirring range and improving the premixing effect on the PVC particle raw materials.

[0070] In addition, during the process of the stirring plate 453 reciprocating along the path of the guiding groove 452, the rotation directions are different, thereby further strengthening the premixing effect on the PVC particle raw materials.

[0071] In the present invention, through the setting of the feeding mechanism 4, while the PVC particle raw materials can be conveyed into the mixing tank 2, the PVC particle raw materials in the storage tank 41 can be stirred.

[0072] The premixing component two 58 includes: a rotating rod 581 rotatably installed in the liquid collecting pipe 51; a stirring blade 582 fixedly installed on the rotating rod 581; a rolling member 583 rotatably installed on the rotating rod 581; a guiding groove 584 opened in the moving pipe 54; the rolling member 583 is rotatably installed in the guiding groove 584; the guiding groove 584 is spiral.

[0073] When the moving pipe 54 reciprocates along the axial direction of the liquid collecting pipe 51, the rolling member 583 moves along the path of the guiding groove 584, so that the rotating rod 581 rotates, and the rotating rod 581 drives the stirring blade 582 to rotate, thereby stirring the PVC liquid raw material entering the liquid collecting pipe 51 and improving the premixing effect of the PVC liquid raw material.

[0074] Since the moving pipe 54 drives the piston 55 to reciprocate, realizing the inflow and outflow of the PVC liquid raw material, when the moving pipe 54 reciprocates, it can drive the stirring blade 582 to rotate forward and backward, so that the PVC liquid raw material is stirred during both the inflow and outflow processes, and thus, with one reciprocating movement of the moving pipe 54, the stirring blade 582 stirs the PVC liquid raw material twice, further improving the premixing effect of the PVC liquid raw material.

[0075] It should be added here that the rolling member 583 is preferably a bull eye ball.

[0076] It further includes: a swinging mechanism 7 that drives the discharge head 44 and the atomizing nozzle 53 to swing synchronously; the swinging mechanism 7 includes: a swinging rod 71 rotatably installed on the movable seat 62; a linkage gear 72 fixedly sleeved on the swinging rod 71; a linkage rack 73 meshed and connected with the linkage gear 72; the linkage rack 73 is fixedly connected with the movable frame 64.

[0077] When the movable frame 64 reciprocates, it can drive the linkage rack 73 to reciprocate, thereby driving the linkage gear 72 to rotate reciprocally, and then driving the swinging rod 71 to swing reciprocally, and the swinging rod 71 drives the discharge head 44 and the atomizing nozzle 53 to swing reciprocally;

[0078] Since when the movable seat 62 moves, it can drive the discharge head 44 and the atomizing nozzle 53 to reciprocate along the axial direction of the reciprocating lead screw 61, so that the discharge head 44 and the atomizing nozzle 53 swing reciprocally and move reciprocally along the axial direction of the reciprocating lead screw 61, thereby expanding the distribution range of the PVC granular raw material and the liquid raw material in the mixing tank 2, which is beneficial to the full mixing of the PVC granular raw material and the liquid raw material.

[0079] It includes the following steps:

[0080] Step S1: Feed PVC granular raw materials into the storage bin 41 and feed PVC liquid raw materials into the storage tank 52. The PVC granular raw materials are premixed under the rotation of the stirring plate 453, and the PVC liquid raw materials are premixed under the rotation of the stirring blade 582;

[0081] Step S2: Simultaneously transport the premixed PVC granular raw materials and PVC liquid raw materials to the mixing tank 2;

[0082] Step S3: The PVC granular raw materials and PVC liquid raw materials are evenly mixed under the rotation of the mixing plate 32;

[0083] Step S4: Take out the PVC raw materials after mixing is completed.

[0084] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described herein. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0085] It should be understood that those of ordinary skill in the art can make improvements or changes according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims

1. A mixing device for PVC modified materials, characterized in that: include: frame; A mixing box fixedly mounted on the frame; A mixing mechanism for mixing PVC granular raw materials and liquid raw materials; The mixing mechanism includes: a movable tube rotatably mounted on the mixing box; a mixing plate rotatably mounted on the movable tube; a power source 1 for driving the mixing plate to rotate; a power source 2 fixedly mounted in the movable tube; a driving bevel gear coaxially connected to the output shaft of the power source 2; a driven bevel gear meshingly connected to the driving bevel gear; and the driven bevel gear is coaxially connected to the mixing plate.

2. A mixing device for PVC modified materials as claimed in claim 1, characterized in that: Also includes: A feeding mechanism for conveying PVC particle raw materials into the mixing box; The feeding mechanism includes: a storage box fixedly mounted on the frame; a pumping pump; a rotating pipe connected to the feeding end of the pumping pump; a discharge head connected to the discharge end of the pumping pump; and a premixing component 1 for pretreating the PVC particle raw materials in the storage box.

3. A mixing device for PVC modified materials as claimed in claim 2, characterized in that: The premixing assembly 1 includes: a guide groove for guiding the movement of the rotating tube; a stirring plate fixedly installed on the rotating tube, a tooth block fixedly installed in the guide groove; a transmission gear fixedly sleeved on the rotating tube; a limiter for limiting the position of the rotating tube when it moves; the rotating tube is slidably installed in the guide groove; and the transmission gear is meshed and connected with the tooth block.

4. A mixing device for PVC modified materials as claimed in claim 3, characterized in that: The limiting member comprises: a limiting groove opened along the path of the guide groove; a movable block rotatably mounted on the rotating tube; and the movable block is slidably mounted in the limiting groove.

5. A mixing device for PVC modified materials as claimed in claim 4, characterized in that: Also includes: A liquid supply mechanism for conveying PVC liquid raw material into the mixing box; The liquid supply mechanism includes: a liquid collecting pipe fixedly installed on the frame; a liquid storage box and an atomizing nozzle connected to the liquid collecting pipe; a moving pipe movably installed in the liquid collecting pipe; a piston fixedly sleeved on the moving pipe; a moving frame fixedly connected to the end of the moving pipe; a reset spring for driving the moving frame to reset; and a premixing component 2 for pretreating the PVC liquid raw material in the storage box.

6. A mixing device for PVC modified materials as claimed in claim 5, characterized in that: The second premixing component comprises: a rotating rod rotatably installed in the liquid collecting pipe; a stirring blade fixedly installed on the rotating rod; a rolling element rotatably installed on the rotating rod; a guide groove opened in the moving pipe; and the rolling element is rollingly installed in the guide groove.

7. A mixing device for PVC modified materials as claimed in claim 6, characterized in that: Also includes: A driving mechanism for driving the premixing assembly 1 and the premixing assembly 2 to operate synchronously; The driving mechanism includes: a reciprocating screw rotatably mounted on the frame; a movable seat threadedly connected to the reciprocating screw; a limiting rod for limiting the movable seat; a slide groove provided on the movable seat; a movable frame slidably mounted in the slide groove; and a connecting piece that links the power source and the reciprocating screw; the movable frame is rotatably connected to the rotating tube.

8. A mixing device for PVC modified materials as claimed in claim 7, characterized in that: Also includes: A swing mechanism that drives the discharging head and the atomizing nozzle to swing synchronously; The swing mechanism comprises: a swing rod rotatably mounted on the movable seat; a linkage gear fixedly sleeved on the swing rod; and a linkage rack meshingly connected with the linkage gear. The linkage rack is fixedly connected to the movable frame.

9. The mixing method of a mixing device for a PVC modified material as claimed in claim 8 is applied to the mixing device for the PVC modified material, characterized in that: The following steps are involved: Step S1: introducing PVC particle raw materials into the material storage box, introducing PVC liquid raw materials into the liquid storage box, the PVC particle raw materials are premixed under the rotation of the stirring plate, and the PVC liquid raw materials are premixed under the rotation of the stirring blade; Step S2: conveying the premixed PVC particle raw material and the PVC liquid raw material to the mixing box at the same time; Step S3: the PVC particle raw material and the PVC liquid raw material are mixed evenly under the rotation of the mixing plate; Step S4: After the mixing is completed, the PVC raw material is taken out.

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