PVC (polyvinyl chloride) additive processing mixer capable of automatically proportioning

Abstract

The invention is applicable to the technical field of material mixing, and provides an automatic proportioning PVC (polyvinyl chloride) additive processing mixer which comprises a box body and a shell which is fixedly arranged on the box body in a sleeving manner and is used for heating the box body, the stirring rod is rotationally arranged in the box body and is used for stirring materials; the weighing device is fixedly arranged at the top of the box body and is used for weighing a PVC (Polyvinyl Chloride) auxiliary agent; a weighing box is arranged on the weighing device; the plurality of liquid storage tanks are arranged above the side of the weighing box, and liquid discharge pipes of the plurality of liquid storage tanks are connected with the weighing box; the discharging pipe is fixedly mounted at the bottom of the weighing box and penetrates through the top of the box body; and the driving mechanism is arranged on the box body and is used for driving the stirring rod to rotate. The PVC auxiliary processing mixer with the automatic proportioning function has the advantages that the working efficiency can be effectively improved, the labor intensity can be reduced, waste can be reduced, and meanwhile, the processing performance of PVC resin can be improved through accurate proportioning and sufficient mixing.

Description

Technical Field

[0001] The invention belongs to the technical field of material mixing, and in particular relates to an automatic proportioning PVC additive processing mixer. Background Art

[0002] PVC is one of the world's five major general-purpose plastics. In recent years, with the rapid development of my country's national economy, PVC products have grown at an annual rate of more than 20%. The pure resin of PVC has problems such as easy decomposition, poor fluidity, low impact strength and poor weather resistance during processing. Therefore, it is necessary to add various auxiliary materials such as lubricants, heat stabilizers, impact modifiers and processing aids during the processing to improve its performance.

[0003] When the mixer is working, PVC additives are usually added manually. However, manual addition has problems such as poor accuracy, easy spillage and frequent addition. It is time-consuming and laborious, and the addition efficiency cannot be guaranteed. Summary of the invention

[0004] The invention provides an automatic proportioning PVC additive processing mixer, aiming to solve the problem of low efficiency of manual additive addition proposed in the above background technology.

[0005] To solve the above problems, the present invention is implemented as follows: an automatic proportioning PVC additive processing mixer comprises: a box body and a shell fixedly sleeved on the box body for heating the box body; a stirring rod rotatably arranged in the box body for stirring materials; a weighing device fixedly installed on the top of the box body for weighing PVC additives, and a weighing box is installed on the weighing device; a plurality of liquid storage tanks are arranged on the upper side of the weighing box, and the discharge pipes of the plurality of liquid storage tanks are all connected to the weighing box; a discharge pipe fixedly installed at the bottom of the weighing box and passing through the top of the box body; a driving mechanism arranged on the box body for driving the stirring rod to rotate; and a discharge mechanism arranged on the weighing box for assisting the weighing box in discharging materials.

[0006] Preferably, the driving mechanism includes: a connecting box fixedly installed in the casing, the connecting box being rotatably connected to the stirring rod; a servo motor fixedly installed on one side of the casing, the output shaft of the servo motor extending into the connecting box; a group of first bevel gears fixedly mounted on the stirring rod and the output shaft of the servo motor, respectively, and the group of first bevel gears are meshed with each other; a scraper rotatably installed at the bottom of the inner wall of the casing, the scraper being fixedly connected to the bottom end of the stirring rod, and the scraper is in rotational contact with the inner wall of the casing.

[0007] Preferably, a mounting groove is provided on one side of the inner wall of the box body, a temperature sensor is fixedly installed in the mounting groove, and a pressure gauge and an exhaust pipe are fixedly installed on one side of the box body.

[0008] Preferably, the auxiliary discharging mechanism includes: a first threaded barrel rotatably installed on the top of the weighing box; a first push plate slidably arranged in the weighing box, the screw on the top of the first push plate is threadedly connected to the first threaded barrel; a first motor fixedly installed on the top of the weighing box; a connecting rod rotatably installed on the top of the weighing box; a group of second bevel gears fixedly sleeved on the connecting rod, the first threaded barrel and the output shaft of the first motor, and the group of second bevel gears are meshed with each other.

[0009] Preferably, a discharge port is provided at the bottom of the weighing box, the discharge port is connected to the discharge pipe, a connecting groove is provided at the bottom of the weighing box, the connecting groove is connected to the discharge port, and a sealing plate for sealing the discharge port is slidably provided in the connecting groove.

[0010] Preferably, a threaded rod is rotatably installed on one side of the discharge pipe, a rectangular tube is threadedly sleeved on the threaded rod, the top of the rectangular tube is fixedly connected to the sealing plate, one end of the threaded rod and the connecting rod are fixedly sleeved with sprockets, chains are sleeved on the two sprockets, and the chain is meshed with the two sprockets.

[0011] Preferably, a guide plate is fixedly installed in the discharge pipe, the guide plate is located below the rectangular tube and is in sliding contact with the rectangular tube, a protective cover is installed on the weighing box, the protective cover is arranged on the chain and the first motor, and the screw of the first push plate slides through the top of the protective cover.

[0012] Preferably, a liquid storage box is provided on one side of the weighing box, the discharge pipe of the liquid storage box is connected to the weighing box, a second threaded cylinder is rotatably installed on the bottom of the liquid storage box, a second push plate is slidably provided in the liquid storage box, the screw at the bottom of the second push plate is threadedly connected to the second threaded cylinder, a circular plate is rotatably installed on the bottom of the liquid storage box, and a third bevel gear is fixedly sleeved on the output rod of the circular plate and the second threaded cylinder, and a group of the third bevel gears are meshed with each other.

[0013] Preferably, a support frame is fixedly installed on the top of the box body, a rotating rod is rotatably installed on the support frame, a fixing plate is fixedly installed in the support frame, the fixing plate is located on one side of the rotating rod, an electric telescopic rod is fixedly installed on the top of the inner wall of the support frame, a connecting block is installed on the output rod of the electric telescopic rod, a connecting cylinder is rotatably installed on the connecting block, a rectangular rod is slidably provided on the connecting cylinder, a circular rod is installed at one end of the rectangular rod, the circular rod is rotatably connected to the fixed plate, a fourth bevel gear is fixedly sleeved on the circular rod and the rotating rod, a group of the fourth bevel gears are meshed, a second motor is fixedly installed on one side of the support frame, the output shaft of the second motor is fixedly connected to the rotating rod, and a movable plate is fixedly installed on one side of the connecting cylinder, and the movable plate is in sliding contact with the circular plate.

[0014] Preferably, an anti-slip pad is fixedly mounted on one side of the movable plate, and a plurality of limit strips are mounted on one side of the circular plate, and the plurality of limit strips are arranged opposite to the anti-slip pad.

[0015] Preferably, a fixing cylinder is fixedly installed on the top of the support frame, a bracket is installed on the liquid storage box, a rectangular block is installed on the bottom of the bracket, the rectangular block is slidably connected to the fixing cylinder, a limiting block is fixedly installed on one side of the bracket, a screw rod is threadedly installed on the limiting block, and the screw rod is threadedly connected to the fixing cylinder and the rectangular block.

[0016] Compared with the related art, the automatic proportioning PVC additive processing mixer provided by the present invention has the following beneficial effects:

[0017] Compared with the prior art, the automatic proportioning PVC additive processing mixer provided by the present invention uses a weighing device to accurately weigh the PVC additive, thereby avoiding the problem of poor accuracy during manual addition and ensuring the accuracy of the proportioning. The automatic proportioning and discharging mechanism reduces the frequent operation of manual addition and reduces labor intensity, while improving the addition efficiency. Through accurate proportioning and sufficient mixing, the processing performance of PVC resin is improved, such as improving fluidity, impact strength and weather resistance.

[0018] In summary, the automatic proportioning PVC additive processing mixer of the present invention can effectively improve work efficiency, reduce labor intensity, and reduce waste. At the same time, accurate proportioning and sufficient mixing can improve the processing performance of PVC resin and other advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of an automatic proportioning PVC additive processing mixer provided by the present invention;

[0020] Figure 2It is a schematic diagram of the main cross-sectional structure of an automatic proportioning PVC additive processing mixer provided by the present invention;

[0021] Figure 3 It is a partial side cross-sectional structural schematic diagram of an automatic proportioning PVC additive processing mixer provided by the present invention;

[0022] Figure 4 It is an assembly diagram of the middle sprocket and the chain provided by the present invention;

[0023] Figure 5 It is an assembly diagram of the liquid storage box and the second push plate provided by the present invention;

[0024] Figure 6 It is an assembly diagram of the transfer rod, the fourth bevel gear and the second motor provided by the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the weighing device provided by the present invention;

[0026] Figure 8 It is an assembly diagram of the middle circular plate and the limiting strip provided by the present invention;

[0027] Fig. 9 for Figure 3 An enlarged structural diagram of part A shown in FIG.

[0028] Fig.10 for Figure 5 Schematic diagram of the enlarged structure of part B shown in FIG.

[0029] Figure numerals: 1, box; 2, shell; 3, stirring rod; 4, weighing device; 5, weighing box; 6, liquid storage tank; 7, discharge pipe; 8, connecting box; 9, servo motor; 10, first bevel gear; 11, scraper; 12, temperature sensor; 13, pressure gauge; 14, exhaust pipe; 15, first threaded cylinder; 16, first push plate; 17, first motor; 18, connecting rod; 19, second bevel gear; 20, discharge port; 21, sealing plate; 22, threaded rod; 23, Rectangular cylinder; 24, sprocket; 25, chain; 26, liquid storage box; 27, second threaded cylinder; 28, second push plate; 29, round plate; 30, third bevel gear; 31, support frame; 32, rotating rod; 33, fixed plate; 34, electric telescopic rod; 35, connecting block; 36, connecting cylinder; 37, rectangular rod; 38, fourth bevel gear; 39, second motor; 40, movable plate; 41, limit strip; 42, fixed cylinder; 43, bracket; 44, limit block; 45, twist rod. DETAILED DESCRIPTION

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] The embodiment of the present invention provides an automatic proportioning PVC additive processing mixer, such as Figure 1-10 As shown, the automatic proportioning PVC additive processing mixer comprises: a box body 1 and a shell body 2 fixedly mounted on the box body 1 for heating the box body 1; a stirring rod 3 rotatably arranged in the box body 1 for stirring materials; a weighing device 4 fixedly mounted on the top of the box body 1 for weighing the PVC additive, and a weighing box 5 is installed on the weighing device 4; a plurality of liquid storage tanks 6 arranged on the upper side of the weighing box 5, and the discharge pipes of the plurality of liquid storage tanks 6 are all connected to the weighing box 5; a discharge pipe 7 fixedly mounted on the bottom of the weighing box 5 and passing through the top of the box body 1; a driving mechanism arranged on the box body 1 for driving the stirring rod 3 to rotate; and a discharge mechanism arranged on the weighing box 5 for assisting the weighing box 5 in discharging materials.

[0033] In this embodiment, according to the requirements of formula components and dosage, measuring instruments of different precisions are used to accurately weigh and proportion various raw materials required for production. When weighing and proportioning the liquid additive, the solenoid valve on the discharge pipe of the liquid storage tank 6 is first opened to discharge the additive in the liquid storage tank 6 into the weighing box 5 in a quantitative manner, and the additive is weighed by the weighing device 4, so as to achieve accurate addition of the additive. After the weighing is completed, the discharge mechanism assists the weighing box 5 to discharge the additive into the box body 1 through the discharge pipe 7, and the driving mechanism drives the stirring rod 3 to rotate to mix the PVC resin and the additive. The materials are fully mixed, and the electric heating element (heating wire) in the shell 2 converts electrical energy into thermal energy to heat the box 1, thereby heating the materials as needed. The PVC additives are accurately weighed by the weighing device 4, avoiding the problem of poor accuracy during manual addition and ensuring the accuracy of the proportioning. The automatic proportioning and discharging mechanism reduces the frequent operation of manual addition, reduces labor intensity, and improves the addition efficiency. Through accurate proportioning and sufficient mixing, the processing properties of PVC resin are improved, such as improving fluidity, impact strength and weather resistance.

[0034] In a further preferred embodiment of the present invention, the driving mechanism includes: a connecting box 8 fixedly installed in the casing 1, the connecting box 8 is rotatably connected to the stirring rod 3; a servo motor 9 fixedly installed on one side of the casing 1, the output shaft of the servo motor 9 extends into the connecting box 8; a group of first bevel gears 10 fixedly mounted on the stirring rod 3 and the output shaft of the servo motor 9, respectively, and a group of first bevel gears 10 are meshed with each other; a scraper 11 rotatably installed at the bottom of the inner wall of the casing 1, the scraper 11 is fixedly connected to the bottom end of the stirring rod 3, and the scraper 11 is in rotational contact with the inner wall of the casing 1.

[0035] In this embodiment, when the servo motor 9 is started, its output shaft rotates, and through the meshing action of the first bevel gear 10, power is transmitted to the stirring rod 3 to rotate it. When the stirring rod 3 rotates, the scraper 11 also rotates therewith and rotates in contact with the inner wall of the box body 1, so that the material attached to the inner wall of the box body 1 can be effectively scraped off to prevent material residue and waste. The servo motor 9 provides a stable and controllable power output, and through the meshing action of the first bevel gear 10, power is efficiently transmitted to the stirring rod 3, so that its rotation is more stable and uniform, thereby improving the stirring efficiency. The design of the scraper 11 enables the material attached to the inner wall of the box body 1 to be continuously scraped off during the stirring process, ensuring that the material is fully stirred and mixed, while reducing the residue and waste of the material. Through the stable power output of the servo motor 9 and the auxiliary effect of the scraper 11, the PVC resin and the additives can be more fully mixed and evenly distributed in the box body 1, thereby improving the mixing uniformity.

[0036] In a further preferred embodiment of the present invention, a mounting groove is provided on one side of the inner wall of the box body 1, a temperature sensor 12 is fixedly installed in the mounting groove, and a pressure gauge 13 and an exhaust pipe 14 are fixedly installed on one side of the box body 1.

[0037] In this embodiment, the pressure gauge 13 is used to monitor the pressure in the box body 1. At the same time, an exhaust pipe 14 is also installed. When the pressure in the box body 1 is too high, the exhaust can be discharged through the exhaust pipe 14 to ensure the safety and stability of the processing process. The temperature sensor 12 is used to monitor the temperature in the box body 1 in real time to ensure that the temperature is controlled within a suitable range during the processing. Through the real-time monitoring of the temperature sensor 12, the temperature in the box body 1 can be accurately controlled to ensure that the PVC resin and the additives are mixed at the optimal processing temperature, thereby improving the processing accuracy and product quality. The pressure gauge can monitor the pressure in the box body 1 in real time. Once the pressure is too high, it can be discovered and measures can be taken in time, such as discharging through the exhaust pipe 14 to avoid safety accidents caused by excessive pressure. The design of the exhaust pipe 14 can ensure that the gas in the box body 1 is discharged in time to avoid the accumulation of harmful gases, thereby optimizing the processing environment and protecting the health of operators.

[0038] In a further preferred embodiment of the present invention, the auxiliary discharging mechanism includes: a first threaded barrel 15 rotatably installed on the top of the weighing box 5; a first push plate 16 slidably arranged in the weighing box 5, and the screw on the top of the first push plate 16 is threadedly connected to the first threaded barrel 15; a first motor 17 fixedly installed on the top of the weighing box 5; a connecting rod 18 rotatably installed on the top of the weighing box 5; a group of second bevel gears 19 fixedly mounted on the connecting rod 18, the first threaded barrel 15 and the output shaft of the first motor 17, and a group of second bevel gears 19 are meshed with each other.

[0039] In this embodiment, when discharging is required, the first motor 17 is started, and its output shaft rotates, and through the meshing action of the second bevel gear 19, the connecting rod 18 and the first threaded barrel 15 are driven to rotate. Since the screw at the top of the first push plate 16 is threadedly connected to the first threaded barrel 15, when the first threaded barrel 15 rotates, it will push the first push plate 16 to slide in the weighing box 5, thereby pushing out the PVC additives in the weighing box 5 to ensure that all the additives in the weighing box 5 are discharged. Through the coordinated use of the first motor 17, the first threaded barrel 15 and the first push plate 16, the PVC additives can be discharged quickly and accurately, thereby improving the discharging efficiency. Since the output shaft speed of the first motor 17 is controllable, the sliding speed of the first push plate 16 can be controlled by adjusting the speed of the first motor 17, thereby achieving precise control of the discharging amount.

[0040] In a further preferred embodiment of the present invention, a discharge port 20 is provided at the bottom of the weighing box 5, and the discharge port 20 is connected to the discharge pipe 7. A connecting groove is provided at the bottom of the weighing box 5, and the connecting groove is connected to the discharge port 20. A sealing plate 21 for sealing the discharge port 20 is slidably provided in the connecting groove.

[0041] In this embodiment, when discharging is required, the sealing plate 21 can be moved to slide out of the connecting groove, thereby opening the discharging port 20 and allowing the PVC additive to be discharged through the discharging port 20 and the discharging pipe 7. When discharging is not required, the sealing plate 21 can be slid back into the connecting groove to seal the discharging port 20, thereby ensuring that the material in the weighing box 5 does not leak. Through the design of the sealing plate 21, the discharging port 20 can be effectively sealed when discharging is not required to prevent material leakage and keep the processing environment clean and hygienic. The sealing effect of the sealing plate 21 can ensure that the material in the weighing box 5 will not affect the weighing result due to leakage during the weighing process, thereby improving the processing accuracy. The design of the sealing plate 21 and its related structures makes the bottom structure of the weighing box 5 more reasonable and compact, while improving the stability and durability of the entire mixer.

[0042] In a further preferred embodiment of the present invention, a threaded rod 22 is rotatably installed on one side of the discharge pipe 7, a rectangular tube 23 is threadedly sleeved on the threaded rod 22, the top of the rectangular tube 23 is fixedly connected to the sealing plate 21, and a sprocket 24 is fixedly sleeved on one end of the threaded rod 22 and the connecting rod 18, a chain 25 is sleeved on the two sprockets 24, and the chain 25 is meshed with the two sprockets 24.

[0043] In this embodiment, when discharge is required, the first motor 17 is started, and its output shaft rotates, and the connecting rod 18 is driven to rotate through the meshing action of the second bevel gear 19. The rotation of the connecting rod 18 will drive the threaded rod 22 to rotate through the transmission action of the chain 25 and the sprocket 24. The rotation of the threaded rod 22 will drive the rectangular tube 23 to move along the axial direction of the threaded rod 22, and then drive the sealing plate 21 to slide along the connecting groove, open the discharge port 20, and discharge the PVC additive through the discharge port 20 and the discharge pipe 7. As a result, when the first push plate 16 slides down, the sealing plate 21 slides synchronously to leak out of the discharge port 20. When discharging is not needed, the first motor 17 rotates in the opposite direction, the sealing plate 21 returns to the connecting groove, and the discharging port 20 is sealed. At this time, the first push plate 16 returns to its position, and the transmission action of the sprocket 24 and the chain 25 realizes the synchronous rotation of the connecting rod 18 and the threaded rod 22, thereby realizing the automatic control of the discharging process and improving the discharging efficiency. The transmission mode of the sprocket 24 and the chain 25 makes the structure of the entire discharging mechanism more compact and reasonable, reduces the floor space and manufacturing cost, and the transmission mode of the sprocket 24 and the chain 25 has high stability and reliability, which can ensure the smooth progress of the discharging process.

[0044] In a further preferred embodiment of the present invention, a guide plate is fixedly installed in the discharge pipe 7, the guide plate is located below the rectangular tube 23 and is in sliding contact with the rectangular tube 23, a protective cover is installed on the weighing box 5, the protective cover is arranged on the chain 25 and the first motor 17, and the screw of the first push plate 16 slides through the top of the protective cover.

[0045] In this embodiment, a protective cover is provided on the chain 25 and the first motor 17. The design of the protective cover protects the chain 25 and the first motor 17 from interference and damage from the external environment, such as dust, moisture, etc., and also helps to reduce noise and vibration, thereby improving the stability and durability of the entire mixer. In addition, the protective cover also plays a role of safety isolation, preventing the operator from directly contacting the chain 25, the first motor 17 and other moving parts during operation, thereby ensuring safe operation. The design of the guide plate makes the rectangular cylinder 23 more stable when moving, avoiding shaking or deviation, thereby improving the stability and accuracy of the discharge process. The design of the protective cover protects key components such as the chain 25 and the first motor 17, extending their service life, while reducing noise and vibration, thereby improving the stability and durability of the entire mixer.

[0046] In a further preferred embodiment of the present invention, a liquid storage box 26 is provided on one side of the weighing box 5, the discharge pipe of the liquid storage box 26 is connected to the weighing box 5, a second threaded barrel 27 is rotatably installed on the bottom of the liquid storage box 26, a second push plate 28 is slidably provided in the liquid storage box 26, a screw at the bottom of the second push plate 28 is threadedly connected to the second threaded barrel 27, a circular plate 29 is rotatably installed on the bottom of the liquid storage box 26, and a third bevel gear 30 is fixedly sleeved on the output rod of the circular plate 29 and the second threaded barrel 27, and a group of the third bevel gears 30 are meshed with each other.

[0047] In this embodiment, a plurality of liquid storage boxes 26 are arranged above the box body 1. The plurality of liquid storage boxes 26 are used to discharge materials with less additive content in the PVC material, and then accurately discharge trace additives. When it is necessary to discharge liquid with less additive content, the circular plate 29 is first rotated, and the second threaded cylinder 27 is driven to rotate through the transmission action of the third bevel gear. The rotation of the second threaded cylinder 27 will drive the second push plate 28 to slide in the liquid storage box 26, so that the liquid in the liquid storage box 26 is discharged into the weighing box 5 through the discharge pipe. By using the circular plate 29 and the second threaded cylinder 27 in coordination, the discharge amount and discharge speed of the liquid in the liquid storage box 26 can be flexibly controlled to meet different processing requirements.

[0048] In a further preferred embodiment of the present invention, a support frame 31 is fixedly installed on the top of the box body 1, and a rotating rod 32 is rotatably installed on the support frame 31. A fixing plate 33 is fixedly installed in the support frame 31, and the fixing plate 33 is located on one side of the rotating rod 32. An electric telescopic rod 34 is fixedly installed on the top of the inner wall of the support frame 31, and a connecting block 35 is installed on the output rod of the electric telescopic rod 34, and a connecting cylinder 36 is rotatably installed on the connecting block 35. A rectangular rod 37 is slidably provided on the connecting cylinder 36, and a circular rod is installed at one end of the rectangular rod 37, and the circular rod is rotatably connected to the fixed plate 33. A fourth bevel gear 38 is fixedly sleeved on the circular rod and the rotating rod 32, and a group of the fourth bevel gears 38 are meshed with each other. A second motor 39 is fixedly installed on one side of the support frame 31, and the output shaft of the second motor 39 is fixedly connected to the rotating rod 32. A movable plate 40 is fixedly installed on one side of the connecting cylinder 36, and the movable plate 40 is in sliding contact with the circular plate 29.

[0049] In this embodiment, when the liquid in the liquid storage box 26 needs to be discharged, the electric telescopic rod 34 is first started, so that the output rod of the electric telescopic rod 34 drives the connecting tube 36 to slide, so that the connecting tube 36 drives the movable plate 40 to be close to the circular plate 29, and then the second motor 39 is started, so that the output shaft of the second motor 39 drives the rotating rod 32 to rotate. The rotation of the rotating rod 32 will drive the circular rod and the elements connected thereto to rotate through the transmission action of the fourth bevel gear 38, and then drive the circular plate 29 to rotate. The rotation of the circular plate 29 will drive the second threaded tube 27 to rotate through the transmission action of the third bevel gear. The movable plate 40 is moved to control the discharge of the liquid in the liquid storage box 26. When the material in any liquid storage box 26 needs to be discharged, the corresponding circular plate 29 and the movable plate 40 are in close contact, and the circular plates 29 and movable plates 40 corresponding to other liquid storage boxes 26 are far away from each other, so as to realize the discharge operation of a single material. Through the coordinated use of the second motor 39 and the electric telescopic rod 34, the automatic discharge control of the liquid can be realized, and the processing efficiency and the degree of automation are improved. Through the sliding contact design of the movable plate 40 and the circular plate 29, a variety of different liquid discharge control methods can be realized, thereby increasing the versatility of the mixer.

[0050] In a further preferred embodiment of the present invention, an anti-skid pad is fixedly installed on one side of the movable plate 40, and a plurality of limit strips 41 are installed on one side of the circular plate 29, and the plurality of limit strips 41 are arranged opposite to the anti-skid pad.

[0051] In this embodiment, the design of the anti-skid pad can increase the friction between the movable plate 40 and the circular plate 29, preventing the circular plate 29 from slipping or failing to be effectively driven due to insufficient friction when the movable plate 40 rotates. The design of the limit strip 41 can further increase the contact area and friction between the movable plate 40 and the circular plate 29. At the same time, they can also play a guiding and limiting role, ensuring that the movable plate 40 can stably drive the circular plate 29 to rotate during the rotation process. Through the design of the anti-skid pad and the limit strip 41, the friction between the movable plate 40 and the circular plate 29 can be increased, thereby improving the transmission efficiency and ensuring that the circular plate 29 can be effectively driven to rotate.

[0052] In order to further improve the use effect of the device, in addition to the above scheme, this scheme also has the following embodiments:

[0053] In another embodiment of the present invention, a fixed cylinder 42 is fixedly installed on the top of the support frame 31, a bracket 43 is installed on the liquid storage box 26, a rectangular block is installed on the bottom of the bracket 43, and the rectangular block is slidably connected to the fixed cylinder 42, and a limit block 44 is fixedly installed on one side of the bracket 43, a screw rod 45 is threadedly installed on the limit block 44, and the screw rod 45 is threadedly connected to the fixed cylinder 42 and the rectangular block.

[0054] In this embodiment, when the screw rod 45 is tightened, it will tightly fix the fixing tube 42, the rectangular block and the bracket 43 together, thereby ensuring the stability and firmness of the liquid storage box 26 on the support frame 31. At the same time, when the screw rod 45 is removed, the liquid storage box 26 can be removed and the material in the liquid storage box 26 can be cleaned, which is convenient for the subsequent replacement of different types of additives. Through the coordinated use of the fixing tube 42, the bracket 43, the rectangular block and the screw rod 45, the stability and firmness of the liquid storage box 26 on the support frame 31 can be ensured, and the processing accuracy and product quality can be avoided from being affected by shaking or deviation during the processing. The threaded connection design of the screw rod 45 makes the installation and disassembly process of the liquid storage box 26 easier and faster, without the need to use complicated tools or equipment.

[0055] In summary, compared with related technologies, this mixer can effectively improve work efficiency, reduce labor intensity, and reduce waste. At the same time, accurate proportioning and sufficient mixing can improve the processing performance of PVC resin and other advantages.

[0056] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An automatic proportioning PVC additive processing mixer, characterized in that: include: A box body (1) and a shell (2) fixedly sleeved on the box body (1) and used for heating the box body (1); Rotating a stirring rod (3) disposed in the box (1) for stirring materials; A weighing device (4) fixedly mounted on the top of the box body (1) for weighing the PVC additive, wherein a weighing box (5) is mounted on the weighing device (4); A plurality of liquid storage tanks (6) are arranged above the weighing box (5), and the discharge pipes of the plurality of liquid storage tanks (6) are all connected to the weighing box (5); A discharge pipe (7) fixedly mounted on the bottom of the weighing box (5) and penetrating the top of the box body (1); A driving mechanism provided on the box body (1) and used for driving the stirring rod (3) to rotate; A material discharging mechanism is provided on the weighing box (5) and is used to assist the weighing box (5) in discharging materials.

2. The automatic proportioning PVC additive processing mixer according to claim 1, characterized in that: The driving mechanism comprises: A connection box (8) fixedly mounted in the box body (1), the connection box (8) being rotatably connected to the stirring rod (3); A servo motor (9) fixedly mounted on one side of the box (1), wherein an output shaft of the servo motor (9) extends into the connection box (8); A group of first bevel gears (10) are fixedly mounted on the stirring rod (3) and the output shaft of the servo motor (9), respectively, and the group of first bevel gears (10) are meshed with each other; A scraper (11) is rotatably mounted on the bottom of the inner wall of the box (1), the scraper (11) is fixedly connected to the bottom end of the stirring rod (3), and the scraper (11) is in rotatable contact with the inner wall of the box (1).

3. The automatic proportioning PVC additive processing mixer according to claim 1, characterized in that: A mounting groove is provided on one side of the inner wall of the box body (1), a temperature sensor (12) is fixedly installed in the mounting groove, and a pressure gauge (13) and an exhaust pipe (14) are fixedly installed on one side of the box body (1).

4. The automatic proportioning PVC additive processing mixer according to claim 1, characterized in that: The auxiliary discharge mechanism comprises: Rotating a first threaded cylinder (15) mounted on the top of the weighing box (5); A first push plate (16) is slidably disposed in the weighing box (5), and a screw rod on the top of the first push plate (16) is threadedly connected to the first threaded barrel (15); A first motor (17) fixedly mounted on the top of the weighing box (5); Rotating a connecting rod (18) mounted on the top of the weighing box (5); A group of second bevel gears (19) are respectively fixedly sleeved on the connecting rod (18), the first threaded cylinder (15) and the output shaft of the first motor (17), and the group of second bevel gears (19) are meshed with each other.

5. The automatic proportioning PVC additive processing mixer according to claim 4, characterized in that: The bottom of the weighing box (5) is provided with a discharge port (20), and the discharge port (20) is connected to the discharge pipe (7). The bottom of the weighing box (5) is provided with a connecting groove, and the connecting groove is connected to the discharge port (20). A sealing plate (21) for sealing the discharge port (20) is slidably provided in the connecting groove.

6. The automatic proportioning PVC additive processing mixer according to claim 5, characterized in that: A threaded rod (22) is rotatably mounted on one side of the discharge pipe (7), a rectangular tube (23) is threadedly sleeved on the threaded rod (22), the top of the rectangular tube (23) is fixedly connected to the sealing plate (21), and a sprocket (24) is fixedly sleeved on one end of the threaded rod (22) and the connecting rod (18), a chain (25) is sleeved on the two sprockets (24), and the chain (25) is meshed with the two sprockets (24).

7. The automatic proportioning PVC additive processing mixer according to claim 6, characterized in that: A guide plate is fixedly installed in the discharge pipe (7), and the guide plate is located below the rectangular cylinder (23) and is in sliding contact with the rectangular cylinder (23). A protective cover is installed on the weighing box (5), and the protective cover is arranged on the chain (25) and the first motor (17). The screw of the first push plate (16) slides through the top of the protective cover.

8. The automatic proportioning PVC additive processing mixer according to claim 7, characterized in that: A liquid storage box (26) is provided on one side of the weighing box (5), a liquid discharge pipe of the liquid storage box (26) is connected to the weighing box (5), a second threaded cylinder (27) is rotatably installed at the bottom of the liquid storage box (26), a second push plate (28) is slidably provided in the liquid storage box (26), a screw at the bottom of the second push plate (28) is threadedly connected to the second threaded cylinder (27), a circular plate (29) is rotatably installed at the bottom of the liquid storage box (26), an output rod of the circular plate (29) and the second threaded cylinder (27) are both fixedly sleeved with a third bevel gear (30), and a group of the third bevel gears (30) are meshed with each other.

9. The automatic proportioning PVC additive processing mixer according to claim 8, characterized in that: A support frame (31) is fixedly mounted on the top of the box body (1), a rotating rod (32) is rotatably mounted on the support frame (31), a fixing plate (33) is fixedly mounted inside the support frame (31), the fixing plate (33) is located on one side of the rotating rod (32), an electric telescopic rod (34) is fixedly mounted on the top of the inner wall of the support frame (31), a connecting block (35) is mounted on the output rod of the electric telescopic rod (34), a connecting tube (36) is rotatably mounted on the connecting block (35), and a rectangular rod (37) is slidably mounted on the connecting tube (36). A circular rod is installed at one end of the rectangular rod (37), and the circular rod is rotatably connected to the fixed plate (33). A fourth bevel gear (38) is fixedly sleeved on the circular rod and the rotating rod (32), and a group of the fourth bevel gears (38) are meshed with each other. A second motor (39) is fixedly installed on one side of the support frame (31), and the output shaft of the second motor (39) is fixedly connected to the rotating rod (32). A movable plate (40) is fixedly installed on one side of the connecting tube (36), and the movable plate (40) is in sliding contact with the circular plate (29).

10. The automatic proportioning PVC additive processing mixer according to claim 9, characterized in that: An anti-slip pad is fixedly mounted on one side of the movable plate (40), and a plurality of limit strips (41) are mounted on one side of the circular plate (29), wherein the plurality of limit strips (41) are arranged opposite to the anti-slip pad.

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