Automatic mixing and feeding device for PVC granulation

Abstract

The utility model provides an automatic mixing and feeding device for PVC (Polyvinyl Chloride) granulation, which is applied to the field of PVC processing machinery, and is characterized by comprising a plurality of charging barrels which are respectively used for containing one kind of raw materials, the number of the measuring control cylinders corresponds to that of the charging cylinders, each measuring control cylinder is communicated with one charging cylinder, and the filling amount is preset in each measuring control cylinder according to the proportion of raw materials; the control mechanism is used for controlling raw materials to enter the measuring control cylinder from the charging cylinder and limiting the raw materials from entering the measuring control cylinder when the raw materials in the measuring control cylinder reach a preset charging amount; the material mixing cylinder is internally provided with a stirring mechanism, the material mixing cylinder is respectively communicated with each measuring control cylinder and is connected into a material suction system of the PVC granulator through a pipeline, and raw materials in the measuring control cylinders are sucked into the material mixing cylinder to be mixed and further enter the PVC granulator; the device has the technical effects that manual work is replaced to accurately mix the raw materials in proportion, and the processing efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the field of PVC processing machinery, in particular to an automatic mixing and feeding device for PVC granulation. Background Art

[0002] PVC, or polyvinyl chloride, is a widely used plastic that can be used to make all kinds of plastic bags, buckets, basins, toys, furniture, stationery and other daily necessities and various plastic products. Polyvinyl chloride is in the form of white powder. In order to facilitate storage and transportation, polyvinyl chloride is usually processed into granules. At present, the technology of using PVC granulators on the market to process PVC resin powder into PVC granules is very mature. PVC resin powder is used as the base material, and processing aids such as stabilizers, lubricants, plasticizers are added in proportion. After the raw materials are mixed, the suction system of the PVC granulator sucks the raw materials into the equipment, and the PVC granulator calenders them into shape and then cuts them into granules.

[0003] At present, the mixing of PVC resin powder and additives is usually done manually. After manually opening the packaging bag containing the raw materials, various raw materials are mixed according to a predetermined ratio. The efficiency of the manual mixing method will be affected by the workers' operating proficiency. If the workers' operating proficiency is insufficient, it will affect the processing efficiency. In addition, there will be inaccurate problems in manually controlling the mixing ratio, which will affect product quality. Utility Model Content

[0004] The utility model aims to provide an automatic mixing and feeding device for PVC granulation, which has the advantage of replacing manual work to accurately mix raw materials in proportion and ensure processing efficiency.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides the following technical solutions: a PVC granulation automatic mixing and feeding device, comprising:

[0006] A plurality of charging barrels each used for holding a type of raw material;

[0007] A number of control cylinders corresponding to the charging cylinders are arranged, each of the control cylinders is connected to one of the charging cylinders, and each of the control cylinders has a preset filling amount according to the proportion of the raw materials;

[0008] A control mechanism for controlling the raw material to enter the control cylinder from the charging cylinder and preventing the raw material from entering the control cylinder when the raw material in the control cylinder reaches a preset filling amount; and

[0009] A mixing cylinder with a stirring mechanism is built in, the mixing cylinder is connected to each of the control cylinders respectively, and is connected to the suction system of the PVC granulator through pipelines. The raw materials in the control cylinders are sucked into the mixing cylinder for mixing and further enter the PVC granulator.

[0010] Through the above technical scheme, different raw materials are respectively loaded in a charging barrel, and then a filling amount is preset for the control measuring barrel according to the different proportions of the raw materials. The raw materials enter the control measuring barrel through the connection between the charging barrel and the control measuring barrel. When the weight of the raw materials in the control measuring barrel reaches the preset filling amount, the control mechanism controls the raw materials to be unable to enter the control measuring barrel from the charging barrel, so that various raw materials are prepared in proportion. The suction system of the PVC granulator pulls the raw materials to move, and the raw materials are uniformly drawn from each control measuring barrel into the mixing barrel. The stirring mechanism in the mixing barrel stirs and mixes the raw materials, and then the suction system sucks the mixed raw materials into the equipment for subsequent processing, thereby realizing automatic proportioning and automatic mixing, replacing manual precise mixing of the raw materials in proportion, and quickly transferring and mixing after the proportion is accurately controlled, to ensure processing efficiency.

[0011] In one embodiment of the present invention, the control mechanism includes:

[0012] A detection component is arranged below the control cylinder, monitors the weight of the control cylinder and triggers a sensing signal when the weight of the raw material in the control cylinder reaches a preset filling amount, and the detection component is arranged in a one-to-one correspondence with the control cylinder; an opening and closing control component controls the opening and closing of the connection between the charging cylinder and the control cylinder, and the opening and closing control component is arranged in a one-to-one correspondence with the detection component; and a controller receives the sensing signal sent by each of the detection components and controls the corresponding opening and closing control components to work.

[0013] Through the above technical solution, when the mass of raw materials in the control cylinder reaches a preset filling amount, the detection component triggers a sensing signal and sends the sensing signal to the controller. The controller controls the opening and closing control component to close the connection between the charging cylinder and the control cylinder, so that the raw materials can no longer enter the control cylinder from the charging cylinder, thereby accurately controlling the amount of raw materials in the control cylinder, thereby achieving precise control of the proportions of multiple raw materials.

[0014] In one embodiment of the utility model, the opening and closing control assembly includes a baffle and an opening and closing drive member that drives the baffle to slide, the opening and closing drive member is controlled by the controller, and the connection between the loading cylinder and the control cylinder is located on the sliding path of the baffle so as to be blocked by the baffle.

[0015] Through the above technical solution, after the controller receives the signal from the detection part, the controller controls the opening and closing drive part to drive the baffle to slide to the connection between the charging cylinder and the control cylinder, thereby blocking the path of the raw material from the charging cylinder to the control cylinder, making it impossible for the raw material to enter the control cylinder from the charging cylinder, so that the amount of raw material in the control cylinder is the filling amount set in proportion.

[0016] In an embodiment of the present invention, the stirring mechanism is configured as a stirring rod driven by a motor, and a stirring blade is fixed on the stirring rod.

[0017] Through the above technical solution, the motor drives the stirring rod to rotate, which in turn drives the stirring blades to rotate to stir and mix the raw materials in the mixing barrel.

[0018] In one embodiment of the utility model, it also includes a feeding mechanism for adding bagged raw materials into the loading barrel, and the feeding mechanism includes: a conveying track for carrying packaging bags containing raw materials and conveying the packaging bags to the top of the loading barrel; a cutter arranged above the conveying track; and a cutting drive assembly for driving the cutter to move to cut the packaging bag.

[0019] Through the above technical solution, the packaging bags containing raw materials are placed on the conveying track manually. The conveying track stops conveying after the packaging bags reach the top of the loading barrel. Then the cutting drive component drives the cutter to slide and cut the packaging bags, so that the raw materials enter the loading barrel from the packaging bags. Using this solution to replenish raw materials only requires manually placing the packaging bags on the conveying track, and subsequent work can be performed automatically, thereby greatly reducing the workload of workers.

[0020] In one embodiment of the present invention, the cutting drive assembly includes a vertical drive member for driving the cutter to slide in a vertical direction so that the cutter contacts the packaging bag, and a horizontal drive member for driving the cutter to slide in a horizontal direction so that the cutter cuts the packaging bag.

[0021] Through the above technical solution, the vertical driving member drives the cutter to move downward until the cutter contacts the packaging bag, and then the horizontal driving member drives the cutter to slide in the horizontal direction to cut the packaging bag, thereby opening the packaging bag and allowing the raw materials in the packaging bag to fall into the loading barrel due to their own gravity.

[0022] In one embodiment of the present invention, a support frame for supporting the conveying track is further included, and a universal wheel is installed at the bottom of the support frame.

[0023] The above technical solution makes it convenient for workers to transfer the conveyor track and adjust the conveyor track to a suitable position.

[0024] In one embodiment of the present invention, a transition cylinder is further included between the control cylinder and the mixing cylinder, and the raw materials are sucked into the control cylinder and then into the mixing cylinder.

[0025] Through the above technical solution, the various raw materials are preliminarily mixed after being sucked into the transition tube, and then subsequently mixed after being sucked into the mixing tube, which can improve the mixing quality.

[0026] As described above, the PVC granulation automatic mixing and feeding device of the utility model has the following beneficial effects:

[0027] Different raw materials are respectively loaded in a loading cylinder, and then a filling amount is preset for the control cylinder according to the different proportions of the raw materials. The raw materials enter the control cylinder through the connection between the loading cylinder and the control cylinder. When the weight of the raw materials in the control cylinder reaches the preset filling amount, the control mechanism controls the raw materials to be unable to enter the control cylinder from the loading cylinder, so that various raw materials are prepared in proportion. The suction system of the PVC granulator pulls the raw materials to move, and the raw materials are uniformly drawn from each control cylinder into the mixing cylinder. The stirring mechanism in the mixing cylinder stirs and mixes the raw materials, and then the suction system sucks the mixed raw materials into the equipment for subsequent processing, thereby realizing automatic proportioning and automatic mixing, replacing manual mixing of the raw materials in proportion, and quickly transferring and mixing after the proportion is accurately controlled to ensure processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Shown is a schematic diagram of an automatic mixing and feeding device for PVC granulation disclosed in an embodiment of the utility model.

[0029] Figure 2 Shown is a schematic diagram of a cutting drive assembly of a PVC granulation automatic mixing and feeding device disclosed in an embodiment of the utility model.

[0030] Description of technical feature numbers in the accompanying drawings:

[0031] 1. Loading cylinder; 2. Control cylinder; 3. Mixing cylinder; 4. Detection component; 5. Baffle; 6. Opening and closing drive component; 7. Conveying track; 8. Cutter; 9. Cutting drive assembly; 10. Support frame; 11. Universal wheel; 12. Transition cylinder; 13. First pipeline; 14. Second pipeline; 15. Third pipeline; 16. Support frame; 91. Vertical drive component; 92. Horizontal drive component. DETAILED DESCRIPTION

[0032] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0033] See also Figure 1 The utility model provides a PVC granulation automatic mixing and feeding device, comprising:

[0034] A plurality of loading barrels 1 are respectively used for holding a raw material. In the present embodiment, four loading barrels 1 are provided, which are respectively used for holding PVC resin powder, stabilizer, lubricant and plasticizer. The loading barrels 1 are placed on a base, and the base is placed on the ground to raise the height of the loading barrels 1.

[0035] See also Figure 1, and also includes control measuring cylinders 2 arranged in a number corresponding to the charging cylinder 1. There are also four control measuring cylinders 2. Each control measuring cylinder 2 is connected to a charging cylinder 1 through a first pipe 13. The control measuring cylinder 2 is placed on the ground. The height of the charging cylinder 1 is higher than the control measuring cylinder 2, and the connection between the first pipe 13 and the charging cylinder 1 is higher than the connection between the first pipe 13 and the control measuring cylinder 2, so that the raw materials in the charging cylinder 1 can enter the control measuring cylinder 2 by utilizing their own gravity. The filling amount in each control measuring cylinder 2 is preset according to the proportion of the raw materials.

[0036] See also Figure 1 and Figure 2 , and also includes a control mechanism for controlling the raw materials from the charging cylinder 1 to enter the control cylinder 2, and restricting the raw materials from entering the control cylinder 2 when the raw materials in the control cylinder 2 reach a preset filling amount. The control mechanism includes: a detection member 4 placed below the control cylinder 2, monitoring the weight of the control cylinder 2 and triggering a sensing signal when the weight of the raw materials in the control cylinder 2 reaches a preset filling amount. In this embodiment, the detection member 4 is set as a weight sensor, and the detection member 4 is set in a one-to-one correspondence with the control cylinder 2. A detection member 4 is placed under each control cylinder 2; an opening and closing control component that controls the opening and closing of the connection between the charging cylinder 1 and the control cylinder 2, and the opening and closing control component is set in a one-to-one correspondence with the detection member 4; and a controller that receives the sensing signal sent by each detection member 4 and controls the corresponding opening and closing control component to work.

[0037] See also Figure 1 and Figure 2 The opening and closing control component includes a baffle 5 and an opening and closing driving member 6 for driving the baffle 5 to slide. The baffle 5 is built into the loading barrel 1 and is arranged in contact with the inner wall of the loading barrel 1. The opening and closing driving member 6 is arranged as a cylinder in this embodiment, and can be replaced by an electric cylinder or a hydraulic cylinder in other embodiments. The opening and closing driving member 6 is placed on the ground, and the piston rod passes through the wall of the loading barrel 1 to be fixed to the baffle 5 by screws. The axial direction of the piston rod is arranged in the vertical direction to drive the baffle 5 to slide in the vertical direction. The opening and closing driving member 6 is controlled by the controller to work, and the connection between the loading barrel 1 and the first pipeline 13 is located on the sliding path of the baffle 5 to be blocked by the baffle 5.

[0038] See also Figure 1 , and also includes a transition tube 12 placed on the ground. The transition tube 12 is connected to the four control tubes 2 through four second pipes 14 respectively. In this embodiment, the first pipe 13 and the second pipe 14 are both configured as hoses to reduce the influence of the supporting effect of the first pipe 13 and the second pipe 14 on the transition tube 12 on the detection accuracy of the detection element 4. Multiple raw materials are preliminarily mixed in the transition tube 12.

[0039] See also Figure 1, and also includes a mixing barrel 3 with a stirring mechanism built in. The mixing barrel 3 is connected to the transition barrel 12 through a third pipe 15 and is connected to the suction system of the PVC granulator through a pipeline. The mixing barrel 3 is connected to multiple control cylinders 2 through the transition barrel 12. The raw materials in the control cylinders 2 are sucked into the mixing barrel 3 for mixing and further enter the PVC granulator. The stirring mechanism is configured as: a stirring rod driven by a motor, a stirring blade is fixed on the stirring rod, the stirring rod and the blade are both built in the mixing barrel 3, and the motor is fixed to the inner wall of the mixing barrel 3 by screws.

[0040] See also Figure 1 and Figure 2 , and also includes a feeding mechanism for adding bagged raw materials into the charging barrel 1, the feeding mechanism includes: a conveying track 7 for carrying packaging bags containing raw materials and conveying the packaging bags to the top of the charging barrel 1; a cutter 8 arranged above the conveying track 7, the number of the cutters 8 is the same as the number of the charging barrel 1; and a cutting drive assembly 9 for driving the cutter 8 to slide to cut the packaging bag, the cutting drive assembly 9 includes a vertical driving member 91 for driving the cutter 8 to slide in the vertical direction so that the cutter 8 contacts the packaging bag, and a horizontal driving member 92 for driving the cutter 8 to slide in the horizontal direction so that the cutter 8 cuts the packaging bag. In this embodiment, The horizontal driving member 92 is configured as a synchronous belt driven by a servo motor, and a supporting frame 16 is fixed on the ground. The synchronous wheel of the synchronous belt is rotatably connected to the supporting frame 16. The vertical driving member 91 is configured as a cylinder. The cylinder body of the cylinder is slidably assembled on the supporting frame 16 in the horizontal direction and is fixed to the synchronous belt by screws. The cutter 8 is fixed to the piston rod of the cylinder by screws. The vertical driving member 91 drives the cutter 8 to move downward until the cutter 8 contacts the packaging bag, and then the horizontal driving member 92 drives the cutter 8 to slide in the horizontal direction to cut the packaging bag, thereby opening the packaging bag so that the raw materials in the packaging bag fall into the loading barrel 1 by their own gravity.

[0041] See also Figure 1 A support frame 10 is placed on the ground, and a conveying track 7 is installed on the support frame 10. Four universal wheels 11 are installed at the bottom of the support frame 10 to facilitate the operator to transfer the conveying track 7. In this embodiment, in order to save costs, a set of conveying tracks 7 and a support frame 10 are provided. After one raw material is added, the conveying track 7 is manually transferred to the next charging barrel 1 to add another raw material. In other embodiments, multiple sets of conveying tracks 7 can also be provided to improve the feeding efficiency.

[0042] The utility model respectively holds different raw materials in a charging barrel 1, and then presets a filling amount for the control measuring barrel 2 according to different raw material proportions. The raw materials enter the control measuring barrel 2 through the connection between the charging barrel 1 and the control measuring barrel 2. When the weight of the raw materials in the control measuring barrel 2 reaches the preset filling amount, the control mechanism controls the raw materials to be unable to enter the control measuring barrel 2 from the charging barrel 1, so that various raw materials are prepared in proportion. The suction system of the PVC granulator draws the raw materials to move, and uniformly draws the raw materials from each control measuring barrel 2 into the mixing barrel 3. The stirring mechanism in the mixing barrel 3 stirs and mixes the raw materials, and then the suction system sucks the mixed raw materials into the equipment for subsequent processing, thereby realizing automatic proportioning and automatic mixing, replacing manual precise mixing of the raw materials in proportion, and quickly transferring and mixing the raw materials after the proportion is accurately controlled, so as to ensure processing efficiency.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A PVC granulation automatic mixing and feeding device, characterized in that: include: A plurality of loading barrels (1) each for holding a type of raw material; The number of control cylinders (2) is corresponding to that of the charging cylinders (1), each of the control cylinders (2) is connected to one of the charging cylinders (1), and each of the control cylinders (2) has a preset filling amount according to the proportion of the raw materials; a control mechanism for controlling the raw material to enter the control cylinder (2) from the charging cylinder (1) and for preventing the raw material from entering the control cylinder (2) when the raw material in the control cylinder (2) reaches a preset filling amount; and A mixing cylinder (3) is provided with a stirring mechanism, and the mixing cylinder (3) is connected to each of the control cylinders (2) respectively and connected to the suction system of the PVC granulator through a pipeline. The raw materials in the control cylinders (2) are sucked into the mixing cylinder (3) for mixing and further enter the PVC granulator.

2. The automatic mixing and feeding device for PVC granulation according to claim 1, characterized in that: The control mechanism comprises: A detection member (4) is arranged below the control cylinder (2), monitors the weight of the control cylinder (2), and triggers a sensing signal when the weight of the raw material in the control cylinder (2) reaches a preset filling amount, the detection member (4) being arranged in a one-to-one correspondence with the control cylinder (2); an opening and closing control component for controlling the opening and closing of the connection between the charging cylinder (1) and the control cylinder (2), the opening and closing control component being arranged in a one-to-one correspondence with the detection member (4); and a controller, receiving the sensing signal sent by each detection member (4) and controlling the operation of the corresponding opening and closing control component.

3. The automatic mixing and feeding device for PVC granulation according to claim 2, characterized in that: The opening and closing control assembly comprises a baffle (5) and an opening and closing driving member (6) for driving the baffle (5) to slide, the opening and closing driving member (6) being controlled by the controller to operate, and the connection between the charging cylinder (1) and the control cylinder (2) is located on the sliding path of the baffle (5) so as to be blocked by the baffle (5).

4. The automatic mixing and feeding device for PVC granulation according to claim 1, characterized in that: The stirring mechanism is configured as a stirring rod driven by a motor, and a stirring blade is fixed on the stirring rod.

5. The automatic mixing and feeding device for PVC granulation according to any one of claims 1 to 4, characterized in that: The invention also comprises a feeding mechanism for adding bagged raw materials into the loading barrel (1), the feeding mechanism comprising: a conveying track (7) for carrying a packaging bag containing raw materials and conveying the packaging bag to the top of the loading barrel (1); a cutter (8) arranged above the conveying track (7); and a cutting drive assembly (9) for driving the cutter (8) to move so as to cut the packaging bag.

6. The automatic mixing and feeding device for PVC granulation according to claim 5, characterized in that: The cutting drive assembly (9) comprises a vertical drive member (91) for driving the cutter (8) to slide in a vertical direction so that the cutter (8) contacts the packaging bag, and a horizontal drive member (92) for driving the cutter (8) to slide in a horizontal direction so that the cutter (8) cuts the packaging bag.

7. The automatic mixing and feeding device for PVC granulation according to claim 5, characterized in that: It also comprises a support frame (10) for supporting the conveying track (7), and a universal wheel (11) is installed at the bottom of the support frame (10).

8. The automatic mixing and feeding device for PVC granulation according to claim 1, characterized in that: It also includes a transition cylinder (12) arranged between the control cylinder (2) and the mixing cylinder (3), and the raw materials are sucked into the control cylinder (2) and then enter the mixing cylinder (3).

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