Raw material multi-stage impact stirring device for thin film production

Abstract

The invention discloses a raw material multi-stage impact stirring device for film production, which comprises a base, two supports are fixed on the upper side wall of the base, a stirring tank is arranged between the two supports, a rotating shaft connected with the supports is fixed on the outer wall of the stirring tank, a feeding hole is formed in the outer wall of the stirring tank, a cover plate is mounted in the feeding hole, and the rotating shaft is connected with the rotating shaft. A stirring motor is fixed to the end of the stirring tank, the driving end of the stirring motor is fixedly connected with a stirring rod located in the stirring tank, the outer wall of the stirring rod is fixedly sleeved with a plurality of stirring blades, and the end of the stirring tank is connected with a cutting tank. The raw materials are stirred and mixed through the stirring blades, and the rotating disc is slowly rotated in the mixing process, so that a large-caliber interval located on the lower side of the rotating disc is converted into a small-caliber interval, the raw materials are dispersed from the initial large-caliber dispersion to the small-caliber impact, cutting and extrusion, and uniform mixing of the raw materials is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of raw material pretreatment, in particular to a raw material multi-stage impact stirring device for film production. Background Art

[0002] The production of BOPP film is to first make the melt of high molecular weight polypropylene into sheets or thick films through a narrow and long die, and then stretch it in a special stretching machine at a certain temperature and set speed, simultaneously or step by step in the vertical longitudinal and transverse directions, and then undergo appropriate cooling or heat treatment or special processing (such as corona, coating, etc.) to make the film.

[0003] After searching, patent number CN208343211U provides a raw material stirring device for BOPP film production, which relates to the technical field of film production equipment, including a mixing barrel, a cover plate, a dividing hopper, a stirring shaft and a stirring blade, the lower end of the mixing barrel is provided with a discharge port, the cover plate is provided at the upper end of the mixing barrel, the dividing hopper is provided with a plurality of hoppers, and the dividing hoppers are provided on the cover plate and communicated with the inside of the mixing barrel, the stirring shaft is correspondingly installed in the mixing barrel along the central axis of the mixing barrel, and the upper end of the stirring shaft is connected to a driving motor through a transmission box The stirring blades are arranged on the stirring shaft, and the stirring blades are arranged in at least three layers, each layer of stirring blades includes two large blades and two small blades, the large blades and the small blades are arranged in a cross direction, the extended length of the small blades is 1 / 2-2 / 3 of the extended length of the large blades, the large blades and the small blades include an elliptical outer frame, a horizontal plate is provided in the elliptical outer frame of the large blade, and a vertical plate is provided in the elliptical outer frame of the small blade; however, there is the following problem: the raw materials can only be sheared horizontally, and the raw materials move in one direction at the same time, the raw materials lack impact, and therefore the mixing degree is poor.

[0004] In order to solve the above problems, we proposed a multi-stage impact stirring device for raw materials in film production. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a multi-stage impact stirring device for raw materials in film production.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a multi-stage impact stirring device for raw materials of film production, comprising a base, two brackets are fixed to the upper side wall of the base, a stirring tank is arranged between the two brackets, a rotating shaft connected to the bracket is fixed to the outer wall of the stirring tank, a feed inlet is opened on the outer wall of the stirring tank, a cover plate is installed in the feed inlet, a stirring motor is fixed to the end of the stirring tank, a stirring rod located in the stirring tank is fixedly connected to the driving end of the stirring motor, and a plurality of stirring blades are fixedly sleeved on the outer wall of the stirring rod;

[0007] The end of the stirring tank is connected to a cutting tank, the outer wall of the cutting tank is connected to a discharge pipe, a rotating rod is installed in the middle of the cutting tank, and a rotating disk in contact with the inner wall of the cutting tank is fixed to the end of the rotating rod, the rotating disk is evenly distributed into four sections, and cutting openings are opened in the four sections, and cutting blades are fixed in the cutting openings, the outer wall of the stirring tank is fixedly connected to a connecting tank, a sealing sleeve is fixed in the connecting tank, a moving rod is slidably inserted on the sealing sleeve, and a reset spring is sleeved on the moving rod, and the two ends of the reset spring are respectively fixedly connected to the upper side wall of the sealing sleeve and the outer wall of the moving rod, the upper end of the moving rod is fixedly connected to a second magnet block, and the end of the stirring blade at the leftmost end is fixed to a first magnet block;

[0008] A support rod is fixed on the bracket located at the rear side, and a water tank is fixed on the end of the support rod, and a hose is connected to the lower side wall of the water tank, and the lower end of the hose extends through the connecting tank and is connected to the moving rod, a drain outlet is opened on the outer wall of the lower end of the moving rod, and a flow channel for connecting the drain outlet and the hose is provided in the moving rod, a slide plate is slidably arranged in the connecting tank, and a variable resistance mechanism is provided on the lower side wall of the slide plate, a gear is fixed on the end of the rotating rod away from the rotating disk, a connecting box is fixed on the outer wall of the cutting tank, the gear is located in the connecting box, and a toothed plate meshing with the gear is slidably arranged in the connecting box, a telescopic spring is fixed between the end of the toothed plate and the inner wall of the connecting box, an electromagnet connected to the resistance mechanism is fixed in the connecting box, and a magnet block three located on one side of the electromagnet is fixedly embedded at the end of the toothed plate.

[0009] In the above-mentioned raw material multi-stage impact stirring device for film production, the cutting openings in the four sections are of different sizes, and the right end of the cutting blade is flush with the right surface of the turntable.

[0010] In the above-mentioned multi-stage impact stirring device for raw materials of film production, the upper side wall of the base is fixedly connected with an oil cylinder, the driving end of the oil cylinder is rotatably connected with a rotating roller, and the end of the rotating roller is rotatably connected to the outer wall of the stirring tank.

[0011] In the above-mentioned multi-stage impact stirring device for raw materials of thin film production, the variable resistance mechanism includes a mounting plate fixed on the lower side wall of the slide, a support spring is fixedly connected between the mounting plate and the inner bottom wall of the connecting tank, a plurality of resistance plates are fixedly embedded on the mounting plate, the plurality of resistance plates are connected to an external power supply through wires, a conductive sheet is connected to the outer wall of each resistance plate, a conductive rod in contact with the conductive sheet is fixed on the outer wall of the connecting tank, and the conductive rod is connected to the electromagnet through a wire.

[0012] In the above-mentioned multi-stage impact stirring device for raw materials in thin film production, the resistance values ​​of the plurality of resistor plates increase sequentially from top to bottom.

[0013] Compared with the existing technology, the advantages of this raw material mixing equipment for BOPP film production are:

[0014] The present invention stirs and mixes the raw materials through stirring blades, and slowly rotates the turntable during the mixing process, so that the large-diameter area on the lower side of the turntable is converted to the small-diameter area, from the initial large-diameter impact to disperse the raw materials, to the small-diameter impact, cutting and extrusion, to ensure the uniform mixing of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a multi-stage impact stirring device for raw materials in thin film production proposed by the present invention;

[0016] Figure 2 A cross-sectional view of the connection between the middle stirring tank and the connecting tank of a multi-stage impact stirring device for raw materials for film production proposed by the present invention;

[0017] Figure 3 for Figure 2 A magnified view of the structure of part A;

[0018] Figure 4 This is a side sectional view of the connection between the cutting tank and the connecting box in the multi-stage impact stirring device for raw materials of thin film production proposed by the present invention.

[0019] In the figure: 1 base, 2 bracket, 3 stirring tank, 4 stirring motor, 5 rotating shaft, 6 cover plate, 7 discharge pipe, 8 cutting tank, 9 connecting box, 10 support rod, 11 water tank, 12 connecting tank, 13 hose, 14 stirring blade, 15 magnet block 1, 16 magnet block 2, 17 blocking sleeve, 18 moving rod, 19 reset spring, 20 drain outlet, 21 slide plate, 22 mounting plate, 23 support spring, 24 conductive rod, 25 interval, 26 gear, 27 telescopic spring, 28 tooth plate, 29 electromagnet, 30 oil cylinder, 31 rotating roller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 understood as a limitation on the present invention.

[0022] Reference Figure 1-4 The invention relates to a multi-stage impact stirring device for raw materials for film production, comprising a base 1, wherein two brackets 2 are fixed on the upper side wall of the base 1, a stirring tank 3 is arranged between the two brackets 2, a rotating shaft 5 connected with the bracket 2 is fixed on the outer wall of the stirring tank 3, a feeding port is provided on the outer wall of the stirring tank 3, a cover plate 6 is installed in the feeding port, an oil cylinder 30 is fixedly connected to the upper side wall of the base 1, a rotating roller 31 is rotatably connected to the driving end of the oil cylinder 30, and the end of the rotating roller 31 is rotatably connected to the outer wall of the stirring tank 3, and the rotating roller 31 is driven by the extension and contraction of the driving end of the oil cylinder 30 to move up and down, thereby driving the stirring tank 3 to swing up and down, so as to realize the flow of raw materials in the stirring tank 3 and avoid the accumulation of raw materials. At the same time, when the right end of the stirring tank 3 rotates downward, the raw materials can flow to the side of the cutting tank 8, and the contact between the raw materials and the cutting blade can realize the lateral shearing of the raw materials, and the longitudinal shearing of the raw materials by the stirring blade 14 is combined to promote the mixing of the raw materials.

[0023] A stirring motor 4 is fixed to the end of the stirring tank 3, and a driving end of the stirring motor 4 is fixedly connected to a stirring rod located in the stirring tank 3. A plurality of stirring blades 14 are fixedly sleeved on the outer wall of the stirring rod. A cutting tank 8 is connected to the end of the stirring tank 3. A discharge pipe 7 is connected to the outer wall of the cutting tank 8. A valve is installed on the discharge pipe 7. A rotating rod is installed in the middle of the cutting tank 8. Specifically, a fixed rod is fixedly connected to the inner wall of the cutting tank 8, a bearing is fixed to the end of the fixed rod, and the rotating rod is fixed to the inner ring of the bearing. A turntable in contact with the inner wall of the cutting tank 8 is fixed to the end of the rotating rod. The turntable is evenly distributed into four sections 25, and cutting openings are opened on the four sections 25. A cutting blade is fixed in the cutting opening. The cutting blade is fixed in the cutting opening by welding. The cutting openings on the four sections 25 are of different sizes. , the right end of the cutting blade is flush with the right surface of the turntable, the cutting tank 8 is inverted on the welding workbench, the cutting blade is placed, and the end of the cutting blade contacts the surface of the welding workbench. After welding is completed, the end of the cutting blade is consistent with the surface position of the turntable, and is flush, which avoids the cutting blade from extending and contacting the inner wall of the cutting tank 8, causing wear of the inner wall of the cutting tank 8. The stirring motor 4 drives the stirring blade 14 to rotate to stir the raw materials. When the stirring tank 3 is tilted, the raw materials move to the right and contact the lower end of the turntable. The cutting blade in the cutting port is used to shear the mixed raw materials horizontally, and generates an impact when it contacts the turntable to promote the dispersion of the raw materials. The subsequent rotation of the turntable realizes the switching of the cutting blade at the lower end, and realizes the switching from large diameter to small diameter. When the raw materials are unevenly mixed at the beginning, as shown in Figure 4The hexagonal large-diameter cutting blade shown is used to cut the raw materials and fully break up the accumulated raw materials. At the same time, the large-diameter cutting blade is not easy to get clogged. After the raw materials are stirred and mixed, they are gradually cut with the hexagonal small-diameter cutting blade. The small-diameter cutting is more delicate and can cut and disperse the unbroken parts of the mixed raw materials. At the same time, the small-diameter cutting opening also has an extrusion effect, which can extrude the mixed raw materials and further promote mixing.

[0024] The outer wall of the stirring tank 3 is fixedly connected with a connecting tank 12, a sealing sleeve 17 is fixed in the connecting tank 12, a moving rod 18 is slidably inserted on the sealing sleeve 17, and a return spring 19 is sleeved on the moving rod 18, and the two ends of the return spring 19 are respectively fixedly connected to the upper side wall of the sealing sleeve 17 and the outer wall of the moving rod 18, and the upper end of the moving rod 18 is fixedly connected with a magnet block 2 16, and the end of the stirring blade 14 at the leftmost end is fixed with a magnet block 15, and a support rod 10 is fixed on the bracket 2 at the rear side, and a water tank 11 is fixed at the end of the support rod 10, and a hose 13 is connected to the lower side wall of the water tank 11, and the lower end of the hose 13 extends through the connecting tank 12 and is connected to the moving rod 18, and a drain port 20 is opened on the outer wall of the lower end of the moving rod 18, and the sealing sleeve 17 can block the drain port 20. Under normal conditions, the drain port 20 is located in the sealing sleeve 17 and will not During drainage, a flow channel for connecting the drain port 20 and the hose 13 is provided in the movable rod 18, a slide plate 21 is slidably provided in the connecting tank 12, and a variable resistance mechanism is provided on the lower side wall of the slide plate 21. When the stirring motor 4 drives the stirring rod and the stirring blade 14 to rotate to stir the raw materials, the magnet block 15 intermittently rotates to the upper side of the magnet block 2 16. When the magnet block 15 rotates to the upper side of the magnet block 2 16, the magnetic repulsion between the magnet block 15 and the magnet block 2 16 pushes the magnet block 2 16 and the movable rod 18 to move downward, so that the drain port 20 is exposed. At this time, the water in the water tank 11 is discharged into the connecting tank 12 through the hose 13. As the stirring blade 14 rotates to continuously mix the raw materials, the water in the connecting tank 12 continues to increase, and the extrusion slide plate 21 continues to move downward, so that the resistance plate contacted by the conductive rod 24 is switched.

[0025] The variable resistance mechanism includes a mounting plate 22 fixed to the lower side wall of the slide plate 21, a support spring 23 is fixedly connected between the mounting plate 22 and the inner bottom wall of the connecting tank 12, a plurality of resistor plates are fixedly embedded on the mounting plate 22, the plurality of resistor plates are connected to an external power supply through a wire, the outer wall of each resistor plate is connected to a conductive sheet, a conductive rod 24 in contact with the conductive sheet is fixed on the outer wall of the connecting tank 12, the conductive rod 24 is connected to the electromagnet 29 through a wire, and the resistance of the plurality of resistor plates increases from top to bottom. At the beginning, the resistance of the resistor plate contacted by the conductive rod 24 is relatively large, the current in the entire circuit is relatively small, and the magnetism on the electromagnet 29 is small. At this time, the area 25 with a larger cutting opening is located at the lower end of the turntable. As the water in the connecting tank 12 increases, the slide plate 21 moves downward to switch the resistor plate in contact with the conductive rod 24, so that the resistance in the entire circuit is reduced.

[0026] A gear 26 is fixed to the end of the rotating rod away from the rotating disk, a connecting box 9 is fixed to the outer wall of the cutting tank 8, the gear 26 is located in the connecting box 9, a toothed plate 28 meshing with the gear 26 is slidably arranged in the connecting box 9, a telescopic spring 27 is fixed between the end of the toothed plate 28 and the inner wall of the connecting box 9, an electromagnet 29 connected to the resistance mechanism is fixed in the connecting box 9, a magnet block 3 located on one side of the electromagnet 29 is fixedly embedded at the end of the toothed plate 28, after the resistance in the circuit decreases, the current in the circuit increases, and the magnetic field on the electromagnet 29 The tooth plate 28 is pushed to move toward the telescopic spring 27 by the magnetic repulsive force between the electromagnet 29 and the magnet block 3 to extrude the telescopic spring 27. The engagement of the tooth plate 28 with the gear 26 drives the rotating rod and the turntable to rotate, so that the interval 25 with the smaller cutting opening is rotated to the lower side of the turntable. After the raw materials are fully stirred, they are contacted with the small-diameter cutting opening to scatter, cut, impact and extrude the raw materials, so as to further mix the raw materials. Subsequently, the valve on the discharge pipe 7 can be opened to discharge the mixed raw materials.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage impact stirring device for raw materials in thin film production, comprising a base (1), characterized in that: Two brackets (2) are fixed to the upper side wall of the base (1), a stirring tank (3) is provided between the two brackets (2), a rotating shaft (5) connected to the bracket (2) is fixed to the outer wall of the stirring tank (3), a feed inlet is provided on the outer wall of the stirring tank (3), a cover plate (6) is installed in the feed inlet, a stirring motor (4) is fixed to the end of the stirring tank (3), a driving end of the stirring motor (4) is fixedly connected to a stirring rod located in the stirring tank (3), and a plurality of stirring blades (14) are fixedly sleeved on the outer wall of the stirring rod; The end of the stirring tank (3) is connected to a cutting tank (8), the outer wall of the cutting tank (8) is connected to a discharge pipe (7), a rotating rod is installed in the middle of the cutting tank (8), the end of the rotating rod is fixed with a rotating disk in contact with the inner wall of the cutting tank (8), the rotating disk is evenly distributed into four sections (25), the four sections (25) are each provided with a cutting opening, a cutting blade is fixed in the cutting opening, the outer wall of the stirring tank (3) is fixedly connected to a connecting tank (12), A plugging sleeve (17) is fixed in the connecting tank (12), a moving rod (18) is slidably inserted on the plugging sleeve (17), a return spring (19) is sleeved on the moving rod (18), two ends of the return spring (19) are respectively fixedly connected to the upper side wall of the plugging sleeve (17) and the outer wall of the moving rod (18), the upper end of the moving rod (18) is fixedly connected to a second magnet block (16), and the end of the leftmost stirring blade (14) is fixed to a first magnet block (15); A support rod (10) is fixed on the bracket (2) located at the rear side, a water tank (11) is fixed at the end of the support rod (10), a hose (13) is connected to the lower side wall of the water tank (11), the lower end of the hose (13) extends through the connecting tank (12) and is connected to the moving rod (18), a drainage port (20) is provided on the lower end outer wall of the moving rod (18), a flow channel for connecting the drainage port (20) and the hose (13) is provided in the moving rod (18), a slide plate (21) is slidably provided in the connecting tank (12), and the lower side wall of the slide plate (21) A variable resistance mechanism is provided, a gear (26) is fixed to one end of the rotating rod away from the rotating disk, a connecting box (9) is fixed to the outer wall of the cutting tank (8), the gear (26) is located in the connecting box (9), a toothed plate (28) meshing with the gear (26) is slidably arranged in the connecting box (9), a telescopic spring (27) is fixed between the end of the toothed plate (28) and the inner wall of the connecting box (9), an electromagnet (29) connected to the resistance mechanism is fixed in the connecting box (9), and a magnet block 3 located on one side of the electromagnet (29) is fixedly embedded in the end of the toothed plate (28).

2. The multi-stage impact stirring device for raw materials in thin film production according to claim 1, characterized in that: The cutting openings on the four sections (25) are of different sizes, and the right end of the cutting blade is flush with the right surface of the rotating disk.

3. The multi-stage impact stirring device for raw materials in thin film production according to claim 1, characterized in that: An oil cylinder (30) is fixedly connected to the upper side wall of the base (1), a driving end of the oil cylinder (30) is rotatably connected to a rotating roller (31), and an end of the rotating roller (31) is rotatably connected to the outer wall of the stirring tank (3).

4. The multi-stage impact stirring device for raw materials in thin film production according to claim 1, characterized in that: The variable resistance mechanism comprises a mounting plate (22) fixed to the lower side wall of the slide plate (21); a support spring (23) is fixedly connected between the mounting plate (22) and the inner bottom wall of the connection tank (12); a plurality of resistance plates are fixedly embedded on the mounting plate (22); the plurality of resistance plates are connected to an external power source via wires; the outer wall of each resistance plate is connected to a conductive sheet; a conductive rod (24) in contact with the conductive sheet is fixed on the outer wall of the connection tank (12); the conductive rod (24) is connected to an electromagnet (29) via a wire.

5. The multi-stage impact stirring device for raw materials in thin film production according to claim 4, characterized in that: The resistance values ​​of the plurality of resistor plates increase sequentially from top to bottom.

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