CN110978357A

CN110978357A - Conveying belt skirt edge manufacturing system and method

Info

Publication number: CN110978357A
Application number: CN201911346379.0A
Authority: CN
Inventors: 李逸泉
Original assignee: Tiptop Tianjin Rubber Technology Co ltd
Current assignee: Tiptop Tianjin Rubber Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-04-10

Abstract

The invention provides a system and a method for manufacturing a skirt edge of a conveying belt, wherein the system comprises a material mixing device and a centrifugal forming device, the material mixing device is vertically arranged at the upstream of one end of the centrifugal forming device, and the material mixing device is used for mixing raw materials for manufacturing the skirt edge of the conveying belt; the centrifugal forming device is arranged at the downstream of the mixing device and is used for centrifugally forming the mixed raw materials into the skirt of the conveying belt. According to the invention, through designing the manufacturing system of the conveying belt skirt, particularly through structurally designing the mixing device, the end cover assembly is arranged to realize one-step and one-step mixing which can be matched with the working mode of the centrifugal forming device, so that the volume of the mixing device is reduced, through arranging the paddle assembly, through reasonably designing the structure of the stirring paddle, the mixing efficiency is greatly improved, and the economic effect is obvious. The skirt edge of the conveying belt produced by the method has no appearance defect, the cost is low, and the product percent of pass is very high.

Description

Conveying belt skirt edge manufacturing system and method

Technical Field

The invention relates to the technical field of rubber manufacturing, in particular to a conveying belt skirt manufacturing system and a conveying belt skirt manufacturing method.

Background

The conveyer belt is a composite product of rubber, fiber and metal or a composite product of plastic and fabric, which is used for bearing and conveying materials in the belt conveyer belt. The conveyer belt is widely applied to industries such as cement, coal, mine, coking, metallurgy, chemical industry, steel, electric power and the like, and has various forms. The skirt edge is used as a part of the conveying belt and is used for blocking bulk materials and conveying the falling climbing materials at a large angle, conveying efficiency is high, the materials cannot fall on the ground, and the production environment of an enterprise can be improved.

In the in-service use, the life of the shirt rim that has the conveyer belt is less than half of the conveyer belt, because the stress that the shirt rim received tensile and extrusion is great than the conveyer belt at the in-process of carrying the material, consequently can premature ageing fracture, damage, cause whole conveyer belt to lose service function to lead to the material unrestrained in transportation process, reduced work efficiency, also increased the cost of maintenance of enterprise in addition.

To this end, we propose a conveyor skirt manufacturing system and method.

Disclosure of Invention

In view of the above problems, it is an object of the present invention to provide a conveyor skirt manufacturing system and method. The technical scheme adopted by the invention for solving the technical problems is as follows:

the improvement of the system is that the system comprises a mixing device and a centrifugal forming device, wherein the mixing device is vertically arranged at the upstream of one end of the centrifugal forming device, and is used for mixing raw materials for manufacturing the conveyor belt skirt; the centrifugal forming device is arranged at the downstream of the mixing device and is used for centrifugally forming the mixed raw materials into the skirt of the conveying belt.

Further, in the above-mentioned conveyor belt skirt manufacturing system, the mixing device includes a mixing barrel, a feeding barrel and a stirring motor, the mixing barrel and the feeding barrel are sequentially connected in a vertical direction, and a connection portion is provided with a material blocking plate which can be opened and closed, an electric heating sleeve barrel, a first temperature sensor for detecting a heating temperature and an exterior window for observing a mixing state are arranged on an outer side surface of the mixing barrel, an end cover assembly is arranged on a top end of the mixing barrel, a feed inlet is arranged on the end cover assembly, a stirring rod is arranged in the mixing barrel and penetrates through a center of the end cover assembly and extends downwards, the stirring motor is arranged on the end cover assembly and is used for driving the stirring rod to rotate, belt transmission is adopted between the stirring motor and the stirring rod, a blade assembly is arranged on a lower portion of the stirring rod, and a bottom end of the stirring rod is connected with the material blocking plate, and the feeding port at the bottom end of the feeding barrel is hermetically connected with the feeding hopper of the centrifugal molding device.

Further, in foretell conveyer belt shirt rim manufacturing system, in the puddler with be equipped with rolling bearing between the striker plate, the puddler stretches out the top of end cover subassembly is equipped with the handle, the handle is used for carrying and draws the puddler drives the striker plate rebound, in the puddler with the junction of end cover subassembly is equipped with the spindle nose that can dismantle the connection, the rotation sleeve of dismantling the connection is located to the lower extreme of spindle nose, the puddler passes the rotation sleeve setting.

Further, in the manufacturing system for the conveyor belt skirt, the end cover assembly includes a cover hub, the cover hub is rotatably disposed around a central axis of the cover hub, a central hole is formed in the center of the cover hub, a plurality of spokes are uniformly disposed between a circumferential inner side surface of the cover hub and an outer side surface of the central hole, a gap is formed between two adjacent spokes, the gap position corresponds to the feed port position, the number of the gaps is even, and cover plates are disposed at intervals in the gaps.

Further, in foretell conveyer belt shirt rim manufacturing system, the paddle subassembly includes connecting seat and a plurality of right angle plate-shaped stirring rake, the connecting seat cover is located the bottom of puddler, the up end of connecting seat is equipped with a plurality ofly the stirring rake is a plurality of the stirring rake is followed puddler circumference evenly distributed, compounding bucket upper end is cask shape, the stirring rake is all located the lower extreme of compounding bucket, the inner wall shape and a plurality of compounding bucket lower extreme wind when the stirring rake is the same the side shape that forms after the puddler rotation is unanimous. .

Further, in the above system for manufacturing the skirt edge of the conveyor belt, a base shaft is arranged in the connecting seat, a slot is arranged on the base shaft, the bottom end of the slot is rotatably connected with the base shaft, and the upper end of the slot is used for connecting the stirring paddle.

Further, in the above system for manufacturing the skirt edge of the conveyor belt, two stirring paddles are provided, the two stirring paddles are different in size, the larger stirring paddle is rotated around the base shaft by an angle ranging from 0 ° to 25 °, the larger stirring paddle is in a shape of a right-angle frame, the middle of the right-angle frame is hollowed out, each frame of the right-angle frame is provided with a crushing blade having a thick middle and thin two sides, the smaller stirring paddle is rotated around the base shaft by an angle ranging from 0 ° to 15 °, and the smaller stirring paddle is a thin plate.

Further, in the above system for manufacturing the skirt of the conveyor belt, a second temperature sensor and a heat-insulating jacket barrel are arranged on the outer side wall of the feeding barrel, the second temperature sensor is used for detecting the temperature of the feeding barrel, a heat-insulating medium is contained in the heat-insulating jacket barrel, a spiral baffle plate is arranged from top to bottom between the inner wall of the heat-insulating jacket barrel and the outer wall of the feeding barrel, a liquid inlet is arranged at the bottom end of the heat-insulating jacket barrel, and a liquid outlet is arranged at the top end of the heat-insulating jacket barrel.

Further, in the above system for manufacturing the skirt of the conveyor belt, the centrifugal forming device includes a driving device, a centrifugal chamber and a control instrument, the centrifugal chamber includes an inner barrel and an outer barrel, the loading hopper is communicated with the inner barrel, the driving device drives the inner barrel to rotate, an adjustable retaining ring is arranged in the inner barrel, an exhaust hole is arranged on the outer barrel, a mold is formed between the outer wall of the inner barrel and the inner wall of the outer barrel, the mold is used for forming the raw material into the skirt of the conveyor belt, a heating device is arranged on the inner wall of the outer barrel, a heat insulation layer is arranged on the outer wall of the outer barrel, and the control instrument is used for controlling the rotating speed of the driving device and the heating temperature of the.

The present invention also provides a conveyor skirt manufacturing method using a conveyor skirt manufacturing system according to any one of claims 1 to 9, the manufacturing method including the steps of:

step 1: adding 90-95% of polyurethane and 5-10% of silicon nitride ceramic particles into a mixing barrel according to the weight ratio, starting an electric heating sleeve outside the mixing barrel, heating to 30-40 ℃, simultaneously starting a stirring motor to drive a blade assembly to move, and uniformly stirring the materials for 30-50 minutes; wherein the viscosity of the polyurethane conveying material is controlled within 4500 mp.s;

step 2: manually lifting the handle upwards to enable the striker plate to move upwards, enabling the polyurethane ceramic composite material mixed in the step 1 to flow through the feeding barrel and then enter a centrifugal forming device, judging whether the detection temperature detected by the second temperature sensor is between 30 and 40 ℃, if so, not starting the heating sleeve, and if not, starting the heat-insulating sleeve;

and step 3: and the centrifugal forming device carries out centrifugal forming on the polyurethane ceramic composite material flowing into the centrifugal forming device, and the centrifugally formed polyurethane ceramic composite material is solidified to form the skirt plate.

Further, the skirt edge of the conveyor belt manufactured by the skirt edge manufacturing system of the conveyor belt is a silicon nitride polyurethane composite skirt edge, the silicon nitride polyurethane composite skirt edge comprises silicon nitride ceramic particles and polyurethane plates, and the silicon nitride ceramic particles are uniformly distributed in the polyurethane plates; the silicon nitride polyurethane composite material is formed by compounding 90-95% of polyurethane and 5-10% of silicon nitride ceramic particles.

Further, the silicon nitride ceramic requires a particle size of: ceramic particles of silicon nitride < 75 microns.

Furthermore, the addition amount of the polyurethane inorganic filler is within 1-10%. (nano-level addition amount is 1% -5%).

Furthermore, the viscosity of the materials conveyed by the metering pump of the polyurethane equipment is controlled within 4500 mp.s.

Further, as a monomer material for supporting silicon nitride ceramic particles, it is required to have moderate viscosity, insensitivity to air, moisture, temperature, etc., and no reactivity. The properties of polyurethane TDI fully satisfy the above conditions.

Further, the surface energy of the small-particle-size powder ceramic powder is large, particles are easy to agglomerate in the dispersion process, and a layer of oil film is formed on the surface of the agglomerated powder. And (4) putting the ceramic powder into a dispersion machine, and mixing the ceramic powder and the prepolymer into uniform turbid liquid.

And further, pouring 90-95% of mixed polyurethane TDI and 5-10% of silicon nitride which meet the standard into a roller rotating at a high speed by a centrifuge, and carrying out hot vulcanization molding at a certain temperature to prepare the plate.

The method comprises the steps of carrying out an erosion wear test by using the silicon nitride polyurethane composite skirt edge, carrying out error check by using 45# steel, wherein the average system error is less than 5%, the erosion surface is a casting bottom surface, the erosion wear linear velocity is 3.7 m/S, the slurry concentration is 20% (1.25L of quartz sand is added into 5.00L of clear water), the pH value of slurry is 7, the granularity of the quartz sand is 0.05-0.18 mm, 1 time of slurry replacement is carried out after each group of samples is tested, the erosion test time is 48h, the test result is the average value of the test results of 4 samples, the erosion wear mass loss of the composite material sample is measured by adopting an inductance ten-thousandth analytical balance, the opposite erosion wear capacity is further calculated according to the formula E (the erosion quantity of a comparative sample is △ w/the density Q of the comparative sample)/(the erosion quantity of the sample is △ w/the density Q of the sample), and the comparative sample is a pure polyurethane elastomer sample (NCO%: 6.35%), and the surface appearance of the comparative sample is observed by adopting an S2530 type.

The results of the experiment are analyzed as follows: comparison of erosion and abrasion resistance of polyurethane ceramic phases with different silicon nitride powder contents

Silicon nitride content (%)	Abrasion wear (mg)	Capability of resisting erosive wear (€)
			0	78.8	1.00
5	42.8	1.84
			10	42.0	1.87
15	76.1	1.03

The invention has the advantages that: according to the invention, through designing the manufacturing system of the conveying belt skirt, particularly through structurally designing the mixing device, the end cover assembly is arranged to realize one-step and one-step mixing which can be matched with the working mode of the centrifugal forming device, so that the volume of the mixing device is greatly reduced, and through arranging the paddle assembly and reasonably designing the structure of the stirring paddle, the mixing efficiency is greatly improved, and the economic effect is obvious. When the content of silicon nitride ceramic powder is 5-10%, the microstructure of the composite material is changed, so that the erosion resistance of the silicon nitride polyurethane composite material is optimal, and the erosion resistance and wear resistance of the conveyer belt skirt edge obtained by the device are improved by more than 80% compared with those of a pure polyurethane elastomer;

the centrifugal machine has the advantages that the size precision of the product is high, the sheet with the thickness of 1mm can be produced through the minimum thickness, the centrifugal production can be realized according to the volume budget of the product, the size of the product can be freely adjusted within 1-25mm through different pouring amounts, and the product is not limited by a mold.

The polyurethane plate produced by the method has no appearance defects.

The length, width and thickness dimensions are not limited, the occupied space is small, the cost of a die is not needed, the cost is low, and the product percent of pass is very high.

In conclusion, the ceramic plate is formed by compounding 90-95% of polyurethane and 5-10% of silicon nitride ceramic particles, so that the wear resistance and the heat resistance of the skirt edge glue are improved, the service life of the skirt edge glue is prolonged, the working condition adaptability of the skirt edge glue is expanded, the working efficiency of the conveying belt is improved, and the enterprise maintenance cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of the present invention.

FIG. 2 is an exploded view of the tip cap assembly and blade assembly of the present invention.

FIG. 3 is a schematic view of the assembly of the head, beater bar and paddle assembly of the present invention.

Fig. 4 is a top view of fig. 3.

FIG. 5 is a left side view of the centrifugal forming device of the present invention (without the hopper and vent).

Wherein: 1. a mixing device; 2. a centrifugal molding device; 3. a stirring motor; 4. a stirring rod; 41. a first gasket; 5. rotating the sleeve barrel; 51. a shaft head; 52. a limiting plane; 53. a clamping column; 6. a handle; 61. an upper annular groove; 62. a lower annular groove; 63. positioning clips; 7. a belt; 8. a feed inlet; 9. An end cap assembly; 91. a cover hub; 92. a central bore; 93. a spoke; 94. a cover sheet; 95. a gasket; 96. A second gasket; 10. a connecting seat; 11. a stirring paddle; 111. a first stirring paddle; 112. a second stirring paddle; 113. riveting; 114. a crushing blade; 115. a base shaft; 116. a slot; 12. a striker plate; 13. A heat-insulating sleeve barrel; 14. a feeding barrel; 15. a hopper; 16. an exhaust hole; 17. a centrifugal chamber; 18. an adjustable retainer ring; 19. a control instrument; 20. a heater; 21. a main drive shaft; 22. an endless speed-regulating motor; 23. rotating the handle; 231. a knob; 232. an annular projection; 24. electrically heating the sleeve; 25. a centrifugal door; 26. a viewing port; 27. a door handle.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 5, the present invention provides a conveyor skirt manufacturing system, wherein fig. 1 is a perspective view of the present invention. FIG. 2 is an exploded view of the tip cap assembly and blade assembly of the present invention. FIG. 3 is a schematic view of the assembly of the head, beater bar and paddle assembly of the present invention. Fig. 4 is a top view of fig. 3. FIG. 5 is a left side view of the centrifugal forming device of the present invention (without the hopper and vent).

Specifically, the invention provides a conveying belt skirt manufacturing system which comprises a mixing device 1 and a centrifugal forming device 2. Wherein, compounding device 1 is vertical in the upper reaches of locating of centrifugal forming device 2 one end, and compounding device 1 is used for mixing the raw materials of preparation conveyer belt shirt rim. The centrifugal forming device 2 is arranged at the downstream of the mixing device 1, and the centrifugal forming device 2 is used for centrifugally forming the mixed raw materials into a skirt edge of the conveying belt.

Specifically, as shown in fig. 1, the mixing device 1 includes a mixing barrel (not labeled), a feeding barrel 14 and a stirring motor 3. The mixing barrel and the feeding barrel 14 are sequentially connected in the vertical direction, an openable baffle plate 12 is arranged at the joint of the mixing barrel and the feeding barrel 14, and the opening or closing of the baffle plate 12 can control whether the mixed raw materials flow downwards into the feeding barrel 14 from the mixing barrel.

Because the raw material mixing of the skirt edge of the conveying belt needs to be carried out at a certain temperature, the outer side surface of the mixing barrel is provided with an electric heating sleeve barrel 24, a first temperature sensor (not shown in the figure) for detecting the heating temperature and an outer viewing window (not shown in the figure) for observing the mixing state, and the electric heating sleeve barrel 24 is tightly attached to the outer wall of the mixing barrel and used for heating the mixing barrel. The outer side surface of compounding bucket is located to first temperature sensor for temperature in the real-time detection compounding bucket, so that operating personnel in time control the circular telegram condition of electrical heating cover bucket 24, ensure effect and the efficiency of mixing. And meanwhile, an outward-looking window is arranged on the outer side surface of the mixing barrel, so that an operator can directly observe the mixing state of the raw materials at the outside, and the mixing effect is further ensured.

Furthermore, an end cover assembly 9 is arranged at the top end of the mixing barrel, a feed inlet 8 is arranged on the end cover assembly 9, and the feed inlet 8 is used for filling the mixing barrel. Pass the center of end cover subassembly 9 and downwardly extending is equipped with puddler 4 in the compounding bucket, and agitator motor 3 is located on end cover subassembly 9, and agitator motor 3 is used for driving puddler 4 and rotates, is the belt drive between preferred agitator motor 3 and the puddler 4.

Further, be equipped with rolling bearing (not shown in the figure) between puddler 4 and striker 12, puddler 4 passes rolling bearing and stretches out the top of end cover subassembly 9 and is equipped with handle 6, handle 6 is used for carrying and draws puddler 4 and drives striker 12 rebound, be equipped with the spindle nose 51 of dismantling the connection in the junction of puddler 4 and end cover subassembly 9, puddler 4 passes the setting of spindle nose 51, the lower extreme of spindle nose 51 is located the rotating sleeve 5 of dismantling the connection, puddler 4 passes rotating sleeve 5 and sets up.

Further, when the stirring rod 4 rotates, the stirring rod 4 is engaged with the rotating bearing, and the striker plate 12 does not rotate with the stirring rod 4. The handle 6 on the puddler 4 can supply manual or external mechanism to carry and draw the use, drives striker plate 12 rebound when carrying the puddler 4 upwards, and striker plate 12 then communicates compounding bucket and feed bucket 14.

Further, can dismantle in puddler 4 and rotate a set bucket 5 and be connected, when needs puddler 4 to go up to draw, then puddler 4 and rotation set bucket 5 dismantle the separation, when not needing puddler 4 to go up to draw, then puddler 4 and rotation set bucket 5 fixed connection.

Further, as shown in fig. 2, a set of vertically upward fastening columns 53 is provided at the upper end of the spindle head 51, a second gasket 96 is sleeved on the set of fastening columns 53, a central hole 92 is provided at the upper end of the spindle head 51 passing through the center of a cover hub 91, and the fastening columns 53 are used for fastening the handle 6.

Preferably, a rotating handle 23 is further interposed between the handle 6 and the end cap assembly 9, a lower end of the rotating handle 23 is sleeved in the central hole 92 of the end cap assembly 9, and the rotating handle 23 includes a vertically upward knob 231 for an operator to hold. The rotating handle 23 is provided with a hole for the spindle nose 51 to pass through, the upper end surface of the hole is provided with an annular protrusion 232 along the axial direction, correspondingly, the upper end of the spindle nose 51 is provided with a group of parallel limiting planes 52, the group of limiting planes 52 are used for being clamped with the hole of the rotating handle 23, at this time, the upper end surface of the limiting plane 52 of the spindle nose 51 is provided with a group of clamping columns 53 which are vertically and upwards arranged, and the group of clamping columns 53 are sleeved with a second gasket 96 for being clamped with the handle 6. The rotating handle 23 is provided for the operator to manually rotate the end cap assembly 9 under special conditions (unexpected shutdown, etc.).

Further, as shown in fig. 2, the lower end of the handle 6 is provided with an upper annular groove 61 and a lower annular groove 62, the lower annular groove 62 is provided with a first gasket 41, the upper annular groove 61 is provided with a positioning clip 63 engaged therewith, and the positioning clip 63 is provided with a notch engaged with the upper annular groove 61. During the connection, the opening on the locating clip 63 blocks with the upper ring type groove 61 mutually, and the handle 6 is located by the locating clip 63 this moment, can't continue to descend, and this locating clip 63 mainly used carries pull handle 6 and opens striker plate 12 of bottom, because of liquid raw materials flow needs time, if the artificial hand handle that then needs of operating personnel all the time of carrying, designs for liberation operating personnel's both hands.

Furthermore, a paddle component is arranged at the lower part of the stirring rod 4, the bottom end of the stirring rod 4 penetrates through the paddle component and then is connected with the striker plate 12, a feeding opening at the bottom end of the feeding barrel 14 is in sealing connection with the feeding hopper 15 of the centrifugal forming device 2, the sealing connection is used for ensuring that the mixed raw materials do not leak, the temperature of the mixed raw materials is ensured, and the mixed raw materials are prevented from being solidified and shaped during conveying.

Further, as shown in fig. 2, the end cap assembly 9 includes a cap hub 91, the cap hub 91 is rotatably disposed around a central axis of the cap hub 91, and the center of the cap hub 91 is provided with a central hole 92, that is, the cap hub 91 rotates around the central axis of the central hole 92 with uniform rotation. Evenly be equipped with many spokes 93 between the lateral surface of the circumference medial surface of edge lid hub 91 to centre bore 92, form the space between two adjacent spokes 93, the quantity of spoke 93 equals with the quantity in space, is equipped with cover plate 94 on a plurality of spaces interval. The number of the gaps is preferably even, the gap is set to ensure that the number of the gaps on the cover hub 91 is equal to the number of the gaps with the cover plates 94, and the positions of the gaps correspond to the positions of the feed inlets 8, so that when the cover hub 91 rotates along the central axis at a constant speed, the feed inlets 8 can be contacted with the gaps at intervals, raw materials conveyed by the feed inlets 8 can directly fall into a mixing barrel when the feed inlets 8 are contacted with the gaps, the gaps with the cover plates 94 are contacted with the feed inlets 8 along with the continuous rotation of the cover hub 91, at the moment, the cover plates 94 block the raw materials conveyed by the feed inlets 8, at the moment, the operation of the centrifugal forming device 2 is just stopped, and the time for taking out the conveying belt skirt formed in. So set up the feeding mode, can guarantee the raw materials intermittent type nature feeding in the compounding bucket, correspond with the mode of operation that 2 order one of centrifugal forming device moved just, and then reduced compounding device 1's volume, economic effect is showing when saving space.

Further, a gasket 95 is provided between the lower end surface of the cover hub 91 and the mixing bowl for sealing.

Further, as shown in fig. 3 and 4, the blade assembly includes a coupling socket 10 and a plurality of right-angle plate-shaped paddles 11 provided on the coupling socket 10. The bottom of puddler 4 is located to connecting seat 10 cover, and the up end of connecting seat 10 is equipped with a plurality of stirring rakes 11, and a plurality of stirring rakes 11 are along 4 circumference evenly distributed of puddler, and the compounding bucket upper end is the cask shape, and the lower extreme of compounding bucket is all located to stirring rake 11, and the side shape that forms after 4 rotations of puddler was unanimous when inner wall shape and a plurality of stirring rakes 11 coplanar of compounding bucket lower extreme were around. .

Further, a base shaft 115 is arranged in the connecting seat 10, a slot 116 is arranged on the base shaft 115, the bottom end of the slot 116 is rotatably connected with the base shaft 115, and the upper end of the slot 116 is used for connecting the stirring paddle 11. Preferably, the slot 116 is connected to the paddle 11 by a rivet 113.

Furthermore, the number of the stirring paddles 11 is two, the two stirring paddles 11 are different in size, and the rotation angle range of one stirring paddle 112 around the base shaft 115 is 0-25 degrees, namely, the stirring paddle 112 can rotate around the stirring rod 4 and can swing between 0-25 degrees along the base shaft 115, so that the stirring paddle can contact with mixed raw materials in an all-round manner, and the mixing efficiency is further improved.

Further, a larger stirring paddle 112 is in a right-angle frame shape, the middle of the right-angle frame is hollowed out, crushing blades 114 with thick middle and thin two sides are formed on each frame of the right-angle frame, the frame is set to be in a form with the crushing blades 114 through the hollowed-out setting, and the hollow-out setting can be used for smashing the coated particles generated in the raw material mixing process and greatly improving the mixing efficiency.

Furthermore, the rotation angle range of one smaller stirring paddle 111 around the base shaft 115 is between 0 and 15 degrees, namely the stirring paddle 111 can rotate around the stirring rod 4 and can swing between 0 and 15 degrees along the base shaft 115, can be in all-directional contact with mixed raw materials, and further improves the mixing efficiency. The smaller stirring paddle 111 is a thin plate, so that the solid and liquid of the raw materials can be mixed in a large area. Simultaneously, the stirring paddle 112 which is arranged in a hollow manner is matched with each other, so that the material mixing efficiency is greatly improved.

Further, the outer side wall of the feeding barrel 14 is provided with a second temperature sensor and a heat-insulating sleeve barrel 135, the second temperature sensor is used for detecting the temperature of the feeding barrel 14, a heat-insulating medium is contained in the heat-insulating sleeve barrel 135, a spiral baffle plate is arranged between the inner wall of the heat-insulating sleeve barrel 135 and the outer wall of the feeding barrel 14 from top to bottom, a liquid inlet is arranged at the bottom end of the heat-insulating sleeve barrel 135, and a liquid outlet is arranged at the top end of the heat-insulating sleeve barrel 135.

Further, as shown in fig. 1 and 5, the centrifugal molding device 2 includes a driving device, a centrifugal chamber 17 and a control instrument 19, and the centrifugal chamber 17 includes an inner barrel and an outer barrel. The left end of the centrifugal chamber 17 is provided with a feeding hopper 15, the left end of the feeding hopper 15 is communicated with a feeding barrel 14, the right end of the feeding hopper 15 is communicated with an inner barrel, mixed raw materials conveyed from the feeding barrel 14 are directly conveyed into the inner barrel of the centrifugal chamber 17 through the feeding hopper 15, meanwhile, a driving device drives the inner barrel to rotate, the inner barrel performs high-speed centrifugal motion, the raw materials in the inner barrel are thrown into a die formed between the outer wall of the inner barrel and the inner wall of the outer barrel under the action of centrifugal force, and a conveying belt skirt is quickly formed in the die.

Further, an adjustable retainer ring 18 is arranged in the inner barrel, an exhaust hole 16 is arranged on the outer barrel, a heating device is arranged on the inner wall of the outer barrel, a heat insulation layer is arranged on the outer wall of the outer barrel, and a control instrument 19 is used for controlling the rotating speed of the driving device and the heating temperature of the heater 20.

Further, after the belt skirt is molded in the mold, an operator needs to manually open the door handle 27, open the centrifugal door 25, and take out the molded belt skirt.

Preferably, a viewing port 26 is provided on the centrifugal door 25 for real-time observation of the centrifugation of the material in the chamber 17.

Preferably, the drive means is a continuously variable speed motor 22.

The invention also provides a manufacturing method of the conveyor belt skirt, which is realized by adopting the manufacturing system of the conveyor belt skirt and comprises the following steps:

step 1: adding 90-95% of polyurethane and 5-10% of silicon nitride ceramic particles into a mixing barrel according to the weight ratio, starting an electric heating sleeve outside the mixing barrel, heating the mixture to 30-40 ℃, simultaneously starting a stirring motor 3 to drive a blade assembly to move, and uniformly stirring the materials for 30-50 minutes; wherein the viscosity of the polyurethane conveying material is controlled within 4500 mp.s;

step 2: manually lifting the handle 6 upwards to enable the striker plate 12 to move upwards along with the striker plate, enabling the polyurethane ceramic composite material mixed in the step 1 to flow through the feeding barrel 14 and then enter the centrifugal forming device 2, judging whether the detection temperature detected by the second temperature sensor is between 30 and 40 ℃, if so, not starting the heating sleeve, and if not, starting the heat-insulation sleeve;

and step 3: the centrifugal forming device 2 carries out centrifugal forming on the polyurethane ceramic composite material flowing into the centrifugal forming device, and the polyurethane ceramic composite material after the centrifugal forming is solidified to form the skirt plate.

The polyurethane plate produced by the method has no appearance defects.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conveyor skirt manufacturing system, characterized in that the system comprises a mixing device and a centrifugal forming device, wherein,

the material mixing device is vertically arranged at the upstream of one end of the centrifugal forming device and is used for mixing raw materials for manufacturing the skirt edge of the conveying belt;

the centrifugal forming device is arranged at the downstream of the mixing device and is used for centrifugally forming the mixed raw materials into the skirt of the conveying belt.

2. The conveying belt skirt manufacturing system according to claim 1, wherein the mixing device comprises a mixing barrel, a feeding barrel and a stirring motor, the mixing barrel and the feeding barrel are sequentially connected in a vertical direction, a material baffle plate which can be opened and closed is arranged at the connection position, an electric heating sleeve barrel, a first temperature sensor for detecting heating temperature and an outward viewing window for observing a mixing state are arranged on the outer side surface of the mixing barrel, an end cover assembly is arranged at the top end of the mixing barrel, a feeding hole is arranged on the end cover assembly, a stirring rod is arranged in the mixing barrel and penetrates through the center of the end cover assembly and extends downwards, the stirring motor is arranged on the end cover assembly and is used for driving the stirring rod to rotate, belt transmission is adopted between the stirring motor and the stirring rod, and a blade assembly is arranged at the lower part of the stirring rod, the bottom end of the stirring rod is connected with the baffle plate, and the feeding opening at the bottom end of the feeding barrel is hermetically connected with the feeding hopper of the centrifugal forming device.

3. The conveyor belt skirt manufacturing system according to claim 2, wherein a rotating bearing is arranged between the stirring rod and the striker plate, a handle is arranged at the top end of the stirring rod extending out of the end cover assembly and used for lifting the stirring rod and driving the striker plate to move upwards, a shaft head detachably connected is arranged at the joint of the stirring rod and the end cover assembly, a rotating sleeve detachably connected is arranged at the lower end of the shaft head, and the stirring rod penetrates through the rotating sleeve.

4. The conveyor skirt manufacturing system of claim 2, wherein the end cap assembly comprises a cap hub rotatably disposed about a central axis of the cap hub, the cap hub having a central aperture centrally disposed therein, a plurality of spokes uniformly disposed along a circumferential inner side of the cap hub to an outer side of the central aperture, a gap being defined between adjacent spokes, the gap corresponding to the feed port, the number of the gaps being an even number, and a plurality of cover plates being spaced apart from the gaps.

5. The conveyor belt skirt manufacturing system according to claim 2, wherein the blade assembly comprises a connecting seat and a plurality of right-angle plate-shaped stirring paddles, the connecting seat is sleeved at the bottom end of the stirring rod, the plurality of stirring paddles are arranged on the upper end face of the connecting seat and are evenly distributed along the circumferential direction of the stirring rod, the upper end of the mixing barrel is in a cylindrical shape, the stirring paddles are arranged at the lower end of the mixing barrel, and the shape of the inner wall of the lower end of the mixing barrel is consistent with the shape of the side face formed after the plurality of stirring paddles rotate around the stirring rod when the mixing barrel and the stirring paddles face each other.

6. The conveyor belt skirt manufacturing system of claim 5, wherein a base shaft is disposed in the connecting seat, the base shaft having a slot, a bottom end of the slot being rotatably connected to the base shaft, and an upper end of the slot being adapted to connect to the paddle.

7. The conveyor belt skirt manufacturing system according to claim 6, wherein the number of the stirring paddles is two, two stirring paddles are different in size, the rotation angle range of the larger stirring paddle around the base shaft is 0-25 °, the larger stirring paddle is in a right-angle frame shape, the middle of the right-angle frame is hollowed out, each frame of the right-angle frame is provided with a crushing blade which is thick in the middle and thin on two sides, the rotation angle range of the smaller stirring paddle around the base shaft is 0-15 °, and the smaller stirring paddle is a thin plate.

8. The conveyor skirt manufacturing system according to claim 2, wherein a second temperature sensor and a heat-insulating jacket barrel are arranged on the outer side wall of the feeding barrel, the second temperature sensor is used for detecting the temperature of the feeding barrel, a heat-insulating medium is contained in the heat-insulating jacket barrel, a spiral baffle plate is arranged from top to bottom along the inner wall of the heat-insulating jacket barrel and the outer wall of the feeding barrel, a liquid inlet is arranged at the bottom end of the heat-insulating jacket barrel, and a liquid outlet is arranged at the top end of the heat-insulating jacket barrel.

9. The system for manufacturing a conveyor belt skirt as claimed in claim 2, wherein the centrifugal forming device comprises a driving device, a centrifugal chamber and a control instrument, the centrifugal chamber comprises an inner barrel and an outer barrel, the loading hopper is communicated with the inner barrel, the driving device drives the inner barrel to rotate, an adjustable retaining ring is arranged in the inner barrel, an exhaust hole is formed in the outer barrel, a mold is formed between the outer wall of the inner barrel and the inner wall of the outer barrel and used for forming the raw material into the conveyor belt skirt, a heating device is arranged on the inner wall of the outer barrel, a heat insulation layer is arranged on the outer wall of the outer barrel, and the control instrument is used for controlling the rotating speed of the driving device and the heating temperature of the heater.

10. A conveyor skirt manufacturing method using a conveyor skirt manufacturing system according to any one of claims 1 to 9, comprising the steps of: