Particle material conveying device for plastic track production

Abstract

The invention relates to the related technical field of material conveying, and provides a particle material conveying device for plastic track production, which comprises a bracket and a spiral conveying box mounted on the upper side of the bracket, a feeding device is mounted at one end of the spiral conveying box, and a double-spiral conveying unit is rotationally arranged in the spiral conveying box; a pneumatic dispersing box is fixedly arranged at the discharging end of the spiral conveying box, a reciprocating device for driving the two driving shafts to alternately translate is arranged outside the pneumatic dispersing box, pneumatic dispersing devices are arranged in the pneumatic dispersing box, and the working modes of the two pneumatic dispersing devices are alternately pulsating. When one pneumatic dispersion device is in a high-speed material spraying state, the other pneumatic dispersion device is in a low-speed material spraying state, the overall material discharging speed is kept unchanged, however, the flow speed of sprayed gas in each pneumatic dispersion device can generate pulsating change, and the risk that particles block a material discharging opening is reduced through the pulsating change of airflow.

Description

Technical Field

[0001] The present invention belongs to the technical field related to material transportation, and more specifically, particularly relates to a granular material transportation device for the production of plastic runways. Background Art

[0002] Plastic tracks are widely used in sports venues, schools, parks and other places. Granular materials are required as the base material during their laying process. These granular materials are usually made of materials such as EPDM or TPV, and have good elasticity and wear resistance. However, granular materials are prone to adhesion due to friction, static electricity or humidity during transportation, causing the particles to agglomerate, affecting the transportation efficiency and laying quality.

[0003] Existing granular material conveying devices usually use screw conveyors for transportation. However, during the conveying process, the granular materials are easily adhered between the spiral blades or the inner wall of the conveying pipe, resulting in blockage or uneven conveying. In addition, the granular materials may generate heat due to friction during the conveying process, further aggravating the adhesion problem. Traditional conveying devices lack effective dispersion and anti-adhesion mechanisms, which makes it difficult for the granular materials to be sprayed out evenly at the end of the conveying, affecting the laying effect.

[0004] The prior art still has the following technical problems: First, granular materials tend to stick together into clumps due to friction, static electricity or humidity during transportation. Traditional screw conveyors lack effective means to break adhesion and deconstruct clumps when conveying granular materials, which can easily lead to uneven feeding, reduced conveying efficiency, and even blockage of the conveyor, affecting subsequent paving effects.

[0005] Second, in order to adapt to high-efficiency runway laying, the end spraying speed of the conveying device needs to be high and the radiation range of the particles needs to be increased. However, the existing equipment lacks the means to increase the end conveying speed and radiation range, the laying efficiency is low, and the particle dispersion uniformity is insufficient.

[0006] Therefore, in view of this, the existing structure is studied and improved, and a granular material conveying device for the production of plastic tracks is provided, in order to achieve a more practical purpose. Summary of the invention

[0007] The present invention provides a granular material conveying device for producing a plastic track, which is used to overcome the above-mentioned defects in the prior art.

[0008] The purpose and effect of the granular material conveying device for the production of a plastic runway of the present invention are achieved by the following specific technical means: The present invention provides a granular material conveying device for the production of a plastic runway, comprising a bracket and a spiral transport box installed on the upper side of the bracket, a feeding device is installed at one end of the spiral transport box, a double spiral conveying unit is rotatably arranged inside the spiral transport box, the double spiral conveying unit comprises two parallel driving shafts, each driving shaft is fixedly connected to a spiral blade, and the two spiral blades are alternately arranged, a rotating device for driving the driving shaft to rotate is arranged at one end of the spiral transport box, a pneumatic dispersion box is fixedly arranged at the discharge end of the spiral transport box, and a reciprocating device for driving the two driving shafts to translate alternately is arranged outside the pneumatic dispersion box, so as to achieve the above-mentioned purpose. The axial spacing between the two spiral blades is changed to squeeze the particles into a mass; a pneumatic dispersion device is arranged inside the pneumatic dispersion box, the pneumatic dispersion device includes a knocking device and a cone panel, the cone panel is an elastic conical arc plate, the end of the cone panel with a large diameter is close to the bottom of the inner cavity of the pneumatic dispersion box, and the end of the cone panel with a small diameter is suspended in the inner cavity of the pneumatic dispersion box. A bottom air inlet is opened at the bottom of the pneumatic dispersion box, and the bottom air inlet is located on the lower side of the cone panel. The knocking device acts on the cone panel to make the particles fall evenly from the suspended part of the cone panel and be discharged at high speed under the guidance of the airflow from the bottom air inlet.

[0009] A further technical solution is that the knocking device includes a joystick, a vibrating rod and a vibrating rubbing plate. The joystick is coaxially fixedly connected to the drive shaft and moves back and forth left and right in the pneumatic dispersion box. The vibrating rod is hingedly arranged on the joystick. The vibrating rubbing plate is fixedly connected to the inner wall on the upper side of the pneumatic dispersion box. The vibrating rubbing plate has a plurality of protrusions. The upper end of the vibrating rod abuts the vibrating rubbing plate and contacts with the protrusions, and the lower end of the vibrating rod abuts the upper surface of the conical panel.

[0010] A further technical solution is to install a wind control component in the bottom air inlet, and the wind control component includes a wind control frame, an elastic air inlet plate, an adjusting rod and an arc-shaped abutting rod. The wind control frame is fixed in the bottom air inlet, and a plurality of air control ports are provided on the wind control frame. A plurality of elastic air inlet plates are fixedly provided on the lower side of the wind control frame, and the elastic air inlet plates correspond to the air control ports one by one. The elastic air inlet plates themselves are elastic, and an adjusting rod is provided on the upper side of the wind control frame for sliding left and right. The lower side of the adjusting rod is fixedly connected to the arc-shaped abutting rod by a connecting rod, and the arc-shaped abutting rod abuts against the upper surface of the elastic air inlet plate. The adjusting rod moves left and right to change the downward swing angle of the elastic air inlet plate, thereby changing the air inlet size and air inlet direction of the air control port.

[0011] A further technical solution is that a discharge plate is fixedly arranged at one end of the adjusting rod, and a tail plate is fixedly arranged at the other end of the adjusting rod, the discharge plate has a plurality of laterally distributed pushing protrusions, the longitudinal section of the pushing protrusion is a triangle, the left and right hypotenuses are respectively located at the long side face and the short side face, and the angle formed by the base side of the triangle and the long side face is smaller than the angle formed by the base side and the short side face.

[0012] A further technical solution is that the tail plate is fixedly connected to the conical panel, the conical panel is slidably connected to the lower side wall of the pneumatic dispersion box, a guide rod is also fixedly provided on the right side of the discharge plate, a guide ring is fixedly provided on the lower inner wall of the pneumatic dispersion box, and the guide rod slides left and right in the guide ring.

[0013] A further technical solution is that two discharge nozzles are rotatably arranged at the end of the pneumatic dispersion box, and the lengths of the two discharge nozzles are different so that the discharge port of one discharge nozzle protrudes from the discharge port of the other discharge nozzle. A linkage mechanism is also arranged inside the pneumatic dispersion box, and the linkage mechanism includes an arc-shaped plate, a guide groove is opened on the arc-shaped plate, a fixing rod is fixedly arranged on the lower side of the arc-shaped plate, and the fixing rod is fixedly connected to the operating lever to make the arc-shaped plate move back and forth left and right. A limit body is fixedly arranged on the inner wall of the discharge nozzle, and the lower end of the limit body extends into the guide groove and slides in the guide groove to guide the discharge nozzle to swing back and forth.

[0014] A further technical solution is that the lower side surface of the cone panel is concave to form an arc-shaped groove, and the busbar of the cone panel is spaced apart with multiple arc-shaped grooves. The suspended end of the cone panel is also provided with multiple slits, and the multiple slits cut the suspended end of the cone panel into multiple arc-shaped sheets that are easy to vibrate.

[0015] A further technical solution is that the vibration rod includes an articulated frame, an upper rod and a lower rod. The articulated frame is hinged to the operating rod. The upper rod is fixedly arranged on the upper side of the articulated frame. The upper rod is elastic. A hard rod is elastically and telescopically arranged at the upper end of the upper rod. The hard rod has a rolling roller, which contacts the protrusion of the vibrating washboard. A rigid lower rod is fixedly arranged on the lower side of the articulated frame. A contact head is arranged at the lower end of the lower rod, which contacts the upper surface of the conical panel.

[0016] A further technical solution is that the reciprocating device includes a swinging body, a passive gear, a driving gear and a power motor. A pneumatic cover is fixedly arranged on the upper side of the pneumatic dispersion box to close the inner cavity of the pneumatic dispersion box. The pneumatic cover is provided with a second guide groove and a first guide groove parallel to each other. The second guide groove and the first guide groove are respectively located on the upper sides of the two driving shafts. A first reciprocating rod sliding left and right is arranged in the second guide groove, and a second reciprocating rod sliding left and right is arranged in the first guide groove. The swinging body is rotatably arranged on the pneumatic cover, and the swinging body is located between the second guide groove and the first guide groove. The swinging body is a T-shaped structure. The swinging body includes two first rods and one second rod. Slide grooves are arranged in the first rod and the second rod. The first reciprocating rod and the second reciprocating rod slide in the two first rods respectively. The passive gear rotates on the pneumatic cover, and a sliding shaft is rotatably arranged on the passive gear. The sliding shaft slides in the slide groove of the second rod. The power motor is fixedly arranged on the pneumatic cover, and a driving gear is fixedly arranged on the shaft of the power motor, and the driving gear is meshed with the passive gear.

[0017] A further technical solution also includes an air pump. A dehumidification cover is provided on the upper side of the spiral transport box, the dehumidification cover seals the inner cavity of the spiral transport box, the dehumidification cover itself is provided with a number of ventilation holes, and a ventilation groove is provided in the middle of the drive shaft. The air pump is arranged on the outside of the spiral transport box, and the air outlet of the air pump is connected to two air pipes through a one-to-two adapter, and the two air pipes are respectively connected to the bottom air inlet and the ventilation groove of the drive shaft.

[0018] Compared with the prior art, the present invention has the following beneficial effects: In a granular material conveying device for the production of a plastic track of the present invention, two alternating spiral blades are arranged. When the granular material is transported by the spiral blades, the two spiral blades approach each other and can destroy the clumped granular material. In addition, when the mixed granular material is transported, the arrangement of the two alternating spiral blades can combine the mixing and transportation into one, thereby enhancing the mixing effect. In order to increase the radiation range of the discharge nozzle of the transportation device and increase the discharge speed, the device is provided with two discharge nozzles and corresponding pneumatic dispersion devices, and utilizes high-speed airflow to spray the granular material. The radiation range of the granular material dispersion is enhanced, which is suitable for the working conditions of track laying.

[0019] In a particle material conveying device for the production of a plastic track of the present invention, a cone panel, a vibrating rod, a wind control component, etc. are arranged in a pneumatic dispersion device. When the driving shaft drives the vibrating rod to move in the direction of discharging, the vibrating rod and the vibrating washboard are against each other to generate vibration, and the vibration is transmitted downward to the cone panel. The cone panel generates vibration to reduce the risk of blockage caused by particles sticking to the surface. In addition, the working modes of the two pneumatic dispersion devices are alternating pulsating. Specifically, when one of the pneumatic dispersion devices is in a high-speed spraying state, the other pneumatic dispersion device is in a low-speed spraying state. On the whole, the discharge speed remains unchanged, but the jet gas flow rate inside each pneumatic dispersion device will produce a pulsating change, and the pulsating change of the airflow is used to reduce the risk of blockage of particles at the discharge port.

[0020] By setting two discharge nozzles, corresponding to two pneumatic dispersion devices respectively, when the joystick in one of the pneumatic dispersion devices moves to the right, the joystick drives the cone panel to move to the right through the lower rod, and the cone panel abuts against the tail plate, and the tail plate drives the arc-shaped abutment rod to move through the adjustment rod, and the arc-shaped abutment rod squeezes the elastic air induction plate to the right, so that the elastic air induction plate swings to enlarge the air inlet of the air control port, and fine-tunes the air flow direction to make the wind direction more perpendicular to the direction of particle falling, so as to destroy the agglomeration state of the particles, increase the mixing degree of the particles and the airflow, and facilitate the particles to be guided by the airflow and sprayed out at high speed; and because the cone panel itself is elastic, the lower rod drives the suspended end of the cone panel to swing downward elastically, so as to accelerate the falling of the granular material. The risk of blockage caused by the accumulation of particles is reduced, and one end of the lower rod is suspended, and a cavity is created on the lower side of the lower rod, which is conducive to the smooth flow of air into this cavity, avoiding dense particles blocking the high-speed airflow, and enabling the high-speed airflow to smoothly carry away a large number of falling particles; the joystick in another pneumatic dispersion device moves to the left, and under the elastic reset action of the elastic air induced plate, the elastic air induced plate pushes the arc-shaped abutment rod to the left to drive it to reset to the left, and the arc-shaped abutment rod drives the adjustment rod, the discharge plate and the tail plate to reset to the left, and the tail plate drives the cone panel to reset to the left. During the reset process, the corresponding spiral blade will also reset to the left, which reduces the speed of material transportation on this side. Correspondingly, the elastic air induced plate reduces the air inlet of the air control port. The airflow is rationally distributed. The more materials pushed by the spiral blade, the more airflow it distributes, and the airflow and material mixing effect is good, which reduces the risk of useless work of the airflow, so that the particles can be discharged at a stable flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 is a front view of the present invention; Figure 2 is a top view of the spiral transport box of the present invention after removing the moisture removal cover; Figure 3 It is a schematic diagram of the structure of the present invention after removing the reciprocating device and the discharge nozzle; Figure 4 is a top view of the reciprocating device of the present invention; Figure 5 is a longitudinal cross-sectional view of the pneumatic dispersion box and the discharge nozzle in the present invention; Figure 6 It is a schematic diagram of the structure of the linkage mechanism in the pneumatic dispersion box of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the linkage mechanism in the present invention; Figure 8 It is a schematic diagram of the structure of the vibration rod and the wind control assembly in the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the wind control frame and the elastic wind guide plate in the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the wind control component in the present invention; Fig.11 is a longitudinal sectional view of the pneumatic dispersion box of the present invention; Fig.12 It is a longitudinal sectional view of the spiral transport box in the present invention.

[0024] Description of reference numerals: Bracket 10, spiral transport box 11, motor bracket 12, power motor 13, feeding device 15, dehumidification cover 16, pneumatic cover 17, discharge nozzle 20, pneumatic tube 21, reciprocating device 22, pneumatic dispersion box 23, first shaft 24, second shaft 25, power motor 26, driving gear 27, driven gear 28, first guide groove 29, second guide groove 30, first reciprocating rod 31, second reciprocating rod 32, swing body 33, first rod 34, second rod 35, sliding shaft 36, adjustment hole 37, cone panel 39, hinged frame 40, upper rod 41 , vibrating washboard 42, lower rod 43, air inlet box 44, air control assembly 45, air control frame 46, air control port 47, elastic air induced plate 48, tail plate 49, discharge plate 50, pushing protrusion 51, adjusting rod 52, arc-shaped abutment rod 53, guide rod 55, guide ring 56, linkage mechanism 60, arc-shaped plate 61, limiting body 62, guide slide groove 63, fixing rod 64, operating lever 65, bottom air inlet 66, slit 70, arc-shaped groove 71, first blade 72, second blade 73, short side surface 77, long side surface 78, hard rod 79, vibrating rod 94. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Refer to the attached Figure 1-12 The present invention provides a granular material conveying device for the production of a plastic track, comprising a bracket 10 and a spiral transport box 11 installed on the upper side of the bracket 10, a feeding device 15 is installed at one end of the spiral transport box 11, a double spiral conveying unit is rotatably arranged inside the spiral transport box 11, the double spiral conveying unit comprises two parallel driving shafts, each driving shaft is fixedly connected to a spiral blade, and the two spiral blades are alternately arranged, a rotating device for driving the driving shaft to rotate is arranged at one end of the spiral transport box 11, a pneumatic dispersion box 23 is fixedly arranged at the discharge end of the spiral transport box 11, and a reciprocating device 22 for driving the two driving shafts to translate alternately is arranged outside the pneumatic dispersion box 23, so that the two spirals can be rotated. The axial spacing between the rotating blades changes to squeeze the particles into agglomerates. A pneumatic dispersion device is arranged inside the pneumatic dispersion box 23. The pneumatic dispersion device includes a knocking device and a conical panel 39. The conical panel 39 is an elastic conical arc plate. The end of the conical panel 39 with a large diameter is close to the bottom of the inner cavity of the pneumatic dispersion box 23, and the end of the conical panel 39 with a small diameter is suspended in the inner cavity of the pneumatic dispersion box 23. A bottom air inlet 66 is opened at the bottom of the pneumatic dispersion box 23, and the bottom air inlet 66 is located on the lower side of the conical panel 39. The knocking device acts on the conical panel 39 to make the particles fall evenly from the suspended part of the conical panel 39 and be discharged at high speed under the guidance of the airflow from the bottom air inlet 66.

[0029] Specifically, the two driving shafts are a first shaft 24 and a second shaft 25 extending transversely and spaced from each other. The first blade 72 is fixedly disposed on the first shaft 24, and the second blade 73 is fixedly disposed on the second shaft 25. The first blade 72 and the second blade 73 are alternately disposed. Fig.12 As shown, there is an overlapping portion between the first blade 72 and the second blade 73. When the reciprocating device 22 drives the first shaft 24 and the second shaft 25 to move back and forth alternately, the distance between the first blade 72 and the second blade 73 will change. When the distance is reduced, the particles will be squeezed into a mass to achieve the effect of crushing the massed materials. The spiral blade transportation has a stable feeding effect of low speed and large flow, and cooperates with the pneumatic dispersion device at the end so that the particles can be sprayed out at high speed at the end to adapt to different working conditions, such as workshop transfer, packaging transportation, or runway paving. In order to achieve the transition from low-speed transportation to high-speed injection and reduce the risk of clogging of the particle material in the pneumatic dispersion device, the device is provided with a conical panel 39 suspended at the end, and the particle material is transported to the conical panel 3 by the spiral blade. 9, since one side of the cone panel 39 is suspended, and the suspended part is exactly where the air enters from the bottom air inlet 66, a cavity for air to enter is created on the lower side of the suspended cone panel 39 to prevent high-speed air from being blocked by dense particulate material. Material particles fall along the suspended end of the cone panel 39 and mix with the high-speed air, and are ejected at high speed under the guidance of the high-speed airflow. The particles used for laying the runway will rub against each other during transportation, causing the temperature of the particles to rise, or internal friction to generate static electricity, or under humidity conditions, the surface of the particles will have a certain viscosity. In order to reduce the risk of particles sticking to the inner wall of the transportation equipment, the knocking device acts on the surface of the cone panel 39 so that the particles can smoothly detach from the surface of the cone panel 39 and be guided by the airflow and discharged at high speed.

[0030] Specifically, the rotating device includes a motor bracket 12 and a power motor 13. The motor bracket 12 is fixedly arranged at the left end of the spiral transport box 11. The power motor 13 is fixedly installed on the motor bracket 12. A sleeve is fixedly arranged on the shaft of the power motor 13. The sleeve is connected to one of the drive shafts through a spline. The sleeve can drive the shaft to rotate, and the drive shaft can slide in the sleeve. A transmission wheel is fixed on each drive shaft, and the two transmission wheels are against each other. When working, the power motor 13 drives the sleeve to rotate, and the sleeve drives one drive shaft to rotate, and the drive shaft drives the other drive shaft to rotate through the transmission wheel. Of course, the rotating device can also be realized in other ways. For example, two power motors 13 are set, and their respective drive shafts are connected through sleeves respectively. The drive shaft and the sleeve are slidably connected through splines. The advantage of this solution is that the driving speed of the two drive shafts can be controlled at will, but the cost is higher.

[0031] Preferably, the knocking device includes an operating rod 65, a vibration rod 94 and a vibrating rubbing plate 42. The operating rod 65 is coaxially fixedly connected to the driving shaft and moves back and forth left and right in the pneumatic dispersion box 23. The vibration rod 94 is hingedly arranged on the operating rod 65. The vibrating rubbing plate 42 is fixedly connected to the inner wall on the upper side of the pneumatic dispersion box 23. The vibrating rubbing plate 42 has a plurality of protrusions. The upper end of the vibration rod 94 abuts against the vibrating rubbing plate 42 and contacts with the protrusions, and the lower end of the vibration rod 94 abuts against the upper surface of the conical panel 39.

[0032] Specifically, the vibration rod 94 includes an articulated frame 40, an upper rod 41 and a lower rod 43. The articulated frame 40 is hinged to the operating rod 65. The upper rod 41 is fixedly arranged on the upper side of the articulated frame 40. The upper rod 41 is elastic. A hard rod 79 is elastically and telescopically arranged on the upper end of the upper rod 41. The hard rod 79 has a rolling roller, which contacts the protrusion of the vibration washboard 42. A rigid lower rod 43 is fixedly arranged on the lower side of the articulated frame 40. A contact head is arranged at the lower end of the lower rod 43, which contacts the upper surface of the conical panel 39.

[0033] In this embodiment, during operation, the operating rod 65 moves back and forth left and right, the operating rod 65 drives the hinged frame 40 to move left and right, the hinged frame 40 drives the upper rod 41 and the hard rod 79 to move, the hard rod 79 contacts the protrusion of the vibrating washboard 42 and vibrates, the upper rod 41 drives the hinged frame 40 to swing slightly relative to the operating rod 65, the hinged frame 40 drives the lower rod 43 to swing, and the swing of the end of the lower rod 43 directly hits the upper surface of the cone panel 39, thereby preventing particles from adhering to the cone panel 39 through vibration impact.

[0034] Preferably, a wind control component 45 is installed in the bottom air inlet 66, and the wind control component 45 includes a wind control frame 46, an elastic air inlet plate 48, an adjustment rod 52 and an arc-shaped abutting rod 53. The wind control frame 46 is fixed in the bottom air inlet 66, and a plurality of air control ports 47 are provided on the wind control frame 46. A plurality of elastic air inlet plates 48 are fixedly provided on the lower side of the wind control frame 46. The elastic air inlet plates 48 correspond to the air control ports 47 one by one, and the elastic air inlet plates 48 themselves are elastic. An adjustment rod 52 is provided on the upper side of the wind control frame 46 for sliding left and right. The lower side of the adjustment rod 52 is fixedly connected to the arc-shaped abutting rod 53 through a connecting rod. The arc-shaped abutting rod 53 abuts against the upper surface of the elastic air inlet plate 48. The adjustment rod 52 moves left and right to change the downward swing angle of the elastic air inlet plate 48, thereby changing the air inlet direction.

[0035] Preferably, a discharge plate 50 is fixedly provided at one end of the adjusting rod 52, and a tail plate 49 is fixedly provided at the other end of the adjusting rod 52. The discharge plate 50 has a plurality of laterally distributed pushing protrusions 51. The longitudinal section of the pushing protrusion 51 is a triangle, and the left and right hypotenuses are respectively located at the long side surface 78 and the short side surface 77. The angle formed by the base of the triangle and the long side surface 78 is smaller than the angle formed by the base and the short side surface 77.

[0036] Preferably, the tail plate 49 is fixedly connected to the conical panel 39, and the conical panel 39 is slidably connected to the lower side wall of the pneumatic dispersion box 23. A guide rod 55 is also fixedly provided on the right side of the discharge plate 50, and a guide ring 56 is fixedly provided on the lower inner wall of the pneumatic dispersion box 23, and the guide rod 55 slides left and right in the guide ring 56.

[0037] In this embodiment, if Figure 5 and Figure 8 As shown, when the operating rod 65 drives the cone panel 39 to move to the right through the lower rod 43, the cone panel 39 abuts against the tail plate 49, and the tail plate 49 drives the discharge plate 50 to move to the right through the adjusting rod 52, and the discharge plate 50 drives the short side surface 77 to push the fallen particles to be discharged to the right. At the same time, the adjusting rod 52 drives the arc-shaped abutting rod 53 to move synchronously, and the arc-shaped abutting rod 53 moves to the right, squeezing the elastic air induction plate 48, so that the elastic air induction plate 48 swings to enlarge the air inlet of the air control port 47, and fine-tunes the air inlet direction. As the particles fall, the wind speed increases, and the wind direction changes, so that the wind direction is more perpendicular to the direction in which the particles fall, so as to destroy the agglomeration state of the particles, increase the degree of mixing of the particles and the airflow, and facilitate the particles to be guided by the airflow and ejected at high speed. When the operating rod 65 moves in the opposite direction, Under the elastic reset action of the elastic air induced plate 48, the elastic air induced plate 48 acts on the left component of the arc-shaped abutment rod 53, driving the arc-shaped abutment rod 53 to reset to the left, and the arc-shaped abutment rod 53 drives the adjusting rod 52, the discharge plate 50 and the tail plate 49 to reset to the left, and the tail plate 49 drives the conical panel 39 to reset to the left. During the reset process, the corresponding spiral blades will also reset to the left, which reduces the speed of material transportation on this side. Correspondingly, the elastic air induced plate 48 reduces the air inlet of the air control port 47, while the spiral blades on the other side move to the right, and most of the incoming airflow is distributed to the other side. In this alternating reciprocating manner, the airflow is rationally distributed, the more material is pushed by the spiral blades, the more airflow is distributed, the airflow and material mixing effect is good, and the risk of airflow doing useless work is reduced.

[0038] Preferably, two discharge nozzles 20 are rotatably set at the end of the pneumatic dispersion box 23, and the lengths of the two discharge nozzles 20 are different so that the discharge port of one discharge nozzle 20 protrudes from the discharge port of the other discharge nozzle 20. A linkage mechanism 60 is also set inside the pneumatic dispersion box 23, and the linkage mechanism 60 includes an arc plate 61, on which a guide groove 63 is opened, and a fixing rod 64 is fixedly set on the lower side of the arc plate 61, and the fixing rod 64 is fixedly connected to the operating rod 65 to make the arc plate 61 reciprocate left and right. A limiting body 62 is fixedly set on the inner wall of the discharge nozzle 20, and the lower end of the limiting body 62 extends into the guide groove 63 and slides in the guide groove 63 to guide the discharge nozzle 20 to swing back and forth.

[0039] In this embodiment, the two discharge nozzles 20 correspond to two groups of pneumatic dispersion devices respectively, and the two discharge nozzles 20 spray materials alternately at high speed to maintain the uniformity of the discharge.

[0040] Preferably, the lower surface of the conical panel 39 is concave to form an arc-shaped groove 71, and the busbar of the conical panel 39 is spaced apart with multiple arc-shaped grooves 71. The suspended end of the conical panel 39 is also provided with multiple slits 70, and the multiple slits 70 cut the suspended end of the conical panel 39 into multiple arc-shaped sheets that are easy to vibrate.

[0041] Preferably, the reciprocating device 22 includes a swinging body 33, a passive gear 28, a driving gear 27 and a power motor 26. A pneumatic cover 17 is fixedly arranged on the upper side of the pneumatic dispersion box 23 to close the inner cavity of the pneumatic dispersion box 23. The pneumatic cover 17 is provided with a second guide groove 30 and a first guide groove 29 parallel to each other. The second guide groove 30 and the first guide groove 29 are respectively located on the upper sides of the two driving shafts. A first reciprocating rod 31 sliding left and right is arranged in the second guide groove 30, and a second reciprocating rod 32 sliding left and right is arranged in the first guide groove 29. The swinging body 33 is rotatably arranged on the pneumatic cover 17, and the swinging body 33 is located at the second guide groove 30. Between the second guide groove 30 and the first guide groove 29, the swing body 33 is a T-shaped structure. The swing body 33 includes two first rods 34 and a second rod 35. The first rod 34 and the second rod 35 are both provided with slide grooves. The first reciprocating rod 31 and the second reciprocating rod 32 slide in the two first rods 34 respectively. The passive gear 28 rotates on the pneumatic cover 17, and a sliding shaft 36 is rotatably set on the passive gear 28. The sliding shaft 36 slides in the slide groove of the second rod 35. The power motor 26 is fixedly set on the pneumatic cover 17, and the shaft of the power motor 26 is fixedly set with a driving gear 27, and the driving gear 27 is meshed with the passive gear 28.

[0042] In this embodiment, when working, the power motor 26 is started, driving the active gear 27 to rotate, the active gear 27 drives the passive gear 28 to rotate, the passive gear 28 drives the second rod 35 to swing back and forth through the sliding shaft 36, the second rod 35 drives the two first rods 34 to swing, the two first rods 34 drive the first reciprocating rod 31 and the second reciprocating rod 32 to move alternately, and the first reciprocating rod 31 and the second reciprocating rod 32 drive the two driving shafts to move alternately. In order to adjust the movement amplitude of the first reciprocating rod 31 and the second reciprocating rod 32, a plurality of adjustment holes 37 distributed along the radial direction are provided on the passive gear 28, the sliding shaft 36 is detachably installed in the adjustment hole 37, and the sliding shaft 36 rotates in the adjustment hole 37. For example, when the sliding shaft 36 is installed in the adjustment hole 37 near the center of the passive gear 28, the swing amplitude of the second rod 35 is reduced, and correspondingly, the reciprocating amplitude of the first reciprocating rod 31 and the second reciprocating rod 32 is reduced, which can be adjusted according to actual needs.

[0043] Preferably, an air pump is also included. A dehumidification cover 16 is provided on the upper side of the spiral transport box 11. The dehumidification cover 16 seals the inner cavity of the spiral transport box 11. The dehumidification cover 16 itself is provided with a plurality of vents. A vent groove is provided in the middle of the drive shaft. The wall of the drive shaft also has an air outlet connected to the vent groove. The air pump is provided on the outside of the spiral transport box 11. The air outlet of the air pump is connected to two air pipes through a one-to-two adapter. The two air pipes are connected to the bottom air inlet 66 and the vent groove of the drive shaft. An air inlet box 44 is installed at the lower opening of the bottom air inlet 66. A pneumatic tube 21 is provided at the bottom of the air inlet box 44, and the pneumatic tube 21 is connected to the air pipe.

[0044] In this embodiment, the air pump injects gas into the drive shaft through the air pipe, and the dry gas is discharged into the spiral transport box 11 through the air outlet to dry the particulate matter. The gas is discharged through the vent holes of the dehumidification cover 16 to achieve a drying effect.

[0045] The working process of this device: First, the granular material is injected through the feeding device 15. Under the drive of the rotating device, the two driving shafts rotate to drive the granular material to be transported in the spiral transport box 11. During the transportation of the material, the reciprocating device 22 drives the two driving shafts to move alternately, so that the two spiral blades move alternately to squeeze and crush the granular material into agglomerates.

[0046] Second, the material is transported to the pneumatic dispersion box 23. In order to make the material spray out to meet the needs of laying the runway, the air pump injects high-speed airflow into the pneumatic tube 21 and the air inlet box 44. The airflow passes through the air control port 47 under the guidance of the elastic air induction plate 48 and enters the cavity on the lower side of the cone panel 39. The driving shaft drives the joystick 65 to move, and the joystick 65 drives the vibration rod 94 to move. The upper side of the vibration rod 94 is against the vibration washboard 42 to generate vibration, and the vibration is transmitted downward to the cone panel 39 itself. Since the cone panel 39 itself is elastic and the suspended end has a slit 70 and an arc-shaped groove 71, it is easier to vibrate, which facilitates the separation of particles from the cone panel 39 and reduces the risk of blockage caused by viscosity of particles. The granular material falls in the suspended part of the cone panel 39 and is impacted by the high-speed airflow. The material is sprayed out through the discharge nozzle 20 under the action of the airflow.

[0047] Third, the two discharge nozzles 20 correspond to two pneumatic dispersion devices respectively, and the two discharge nozzles 20 spray alternately to maintain a stable discharge flow rate. When the joystick 65 in one of the pneumatic dispersion devices moves to the right, the joystick 65 drives the cone panel 39 to move to the right through the lower rod 43, and the cone panel 39 abuts against the tail plate 49. The tail plate 49 drives the discharge plate 50 to move to the right through the adjustment rod 52, and the discharge plate 50 drives the short side surface 77 to push the fallen particles to be discharged to the right. At the same time, the adjustment rod 52 drives the arc-shaped abutment rod 53 to move synchronously, and the arc-shaped abutment rod 53 moves to the right to squeeze the elastic air inducing plate 48. , so that the elastic air inlet plate 48 swings to enlarge the air inlet of the air control port 47, and fine-tunes the air inlet direction. As the particles fall, the wind speed increases, and the wind direction changes, so that the wind direction is more perpendicular to the direction in which the particles fall, so as to destroy the agglomeration state of the particles, increase the degree of mixing between the particles and the airflow, and facilitate the particles to be guided by the airflow and ejected at high speed; and because the conical panel 39 itself is elastic, as the operating lever 65 moves to the right, the operating lever 65 drives the suspended end of the conical panel 39 to swing downward elastically through the lower rod 43, so as to accelerate the falling of the granular material and reduce the risk of blockage caused by the accumulation of particles.

[0048] The operating lever 65 in the other pneumatic dispersion device moves to the left. Under the elastic reset action of the elastic air induced plate 48, the elastic air induced plate 48 pushes the arc-shaped abutment rod 53 to reset to the left with its left component force. The arc-shaped abutment rod 53 drives the adjustment rod 52, the discharge plate 50 and the tail plate 49 to reset to the left. The tail plate 49 drives the conical panel 39 to reset to the left. During the reset process, the corresponding spiral blades will also reset to the left, which reduces the speed of material transportation on this side. Correspondingly, the elastic air induced plate 48 reduces the air inlet of the air control port 47.

[0049] In this alternating reciprocating motion, the airflow is rationally distributed. The more material is pushed by the spiral blades, the more airflow is distributed, the airflow and material are mixed well, the risk of the airflow doing useless work is reduced, and the particles can be discharged at a stable flow rate.

[0050] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A granular material conveying device for the production of a plastic track, comprising a bracket and a spiral transport box installed on the upper side of the bracket, wherein a feeding device is installed at one end of the spiral transport box, characterized in that: A double-screw conveying unit is rotatably arranged inside the spiral transport box, and the double-screw conveying unit includes two parallel driving shafts, each driving shaft is fixedly connected to a spiral blade, and the two spiral blades are alternately arranged, and a rotating device for driving the driving shaft to rotate is arranged at one end of the spiral transport box, and a pneumatic dispersion box is fixedly arranged at the discharge end of the spiral transport box, and a reciprocating device for driving the two driving shafts to translate alternately is arranged outside the pneumatic dispersion box, so that the axial spacing between the two spiral blades changes to squeeze the particles into agglomerates; A pneumatic dispersion device is arranged inside the pneumatic dispersion box, and the pneumatic dispersion device includes a knocking device and a cone panel. The cone panel is an elastic conical arc plate. The end of the cone panel with a larger diameter is close to the bottom of the inner cavity of the pneumatic dispersion box, and the end of the cone panel with a smaller diameter is suspended in the inner cavity of the pneumatic dispersion box. A bottom air inlet is provided at the bottom of the pneumatic dispersion box, and the bottom air inlet is located on the lower side of the cone panel. The knocking device acts on the cone panel to make the particles fall evenly from the suspended part of the cone panel and be discharged at high speed under the guidance of the airflow from the bottom air inlet.

2. A granular material conveying device for producing a plastic track according to claim 1, characterized in that: The knocking device includes a joystick, a vibration rod and a vibration rubbing plate. The joystick is coaxially fixedly connected to the drive shaft and moves back and forth left and right in the pneumatic dispersion box. The vibration rod is hingedly arranged on the joystick. The vibration rubbing plate is fixedly connected to the inner wall on the upper side of the pneumatic dispersion box. The vibration rubbing plate has a plurality of protrusions. The upper end of the vibration rod abuts against the vibration rubbing plate and contacts the protrusions, and the lower end of the vibration rod abuts against the upper surface of the cone panel.

3. A granular material conveying device for producing a plastic track according to claim 1, characterized in that: A wind control assembly is installed in the bottom air inlet, and the wind control assembly includes a wind control frame, an elastic air inlet plate, an adjusting rod and an arc-shaped abutting rod. The wind control frame is fixed in the bottom air inlet, and a plurality of air control ports are provided on the wind control frame. A plurality of elastic air inlet plates are fixedly provided on the lower side of the wind control frame, and the elastic air inlet plates correspond to the air control ports one by one. The elastic air inlet plates themselves are elastic. The adjusting rod is slidingly provided on the upper side of the wind control frame to the left and right, and the lower side of the adjusting rod is fixedly connected to the arc-shaped abutting rod by a connecting rod, and the arc-shaped abutting rod abuts against the upper surface of the elastic air inlet plate, and the adjusting rod moves left and right to change the downward swing angle of the elastic air inlet plate, thereby changing the air inlet size and air inlet direction of the air control port.

4. A granular material conveying device for producing a plastic track according to claim 3, characterized in that: A discharge plate is fixedly arranged at one end of the adjusting rod, and a tail plate is fixedly arranged at the other end of the adjusting rod. The discharge plate has a plurality of laterally distributed pushing protrusions, and the longitudinal section of the pushing protrusion is a triangle, and the left and right hypotenuses are respectively located at the long side surface and the short side surface, and the angle formed by the base side of the triangle and the long side surface is smaller than the angle formed by the base side and the short side surface.

5. A granular material conveying device for producing a plastic track according to claim 4, characterized in that: The tail plate is fixedly connected to the conical panel, and the conical panel is slidably connected to the lower side wall of the pneumatic dispersion box. A guide rod is also fixedly provided on the right side of the discharge plate, and a guide ring is fixedly provided on the lower inner wall of the pneumatic dispersion box, and the guide rod slides left and right in the guide ring.

6. A granular material conveying device for producing a plastic track according to claim 2, characterized in that: Two discharge nozzles are rotatably set at the end of the pneumatic dispersion box, and the lengths of the two discharge nozzles are different, so that the discharge port of one of the discharge nozzles protrudes from the discharge port of the other discharge nozzle. A linkage mechanism is also set inside the pneumatic dispersion box, and the linkage mechanism includes an arc-shaped plate, a guide groove is opened on the arc-shaped plate, a fixing rod is fixedly set on the lower side of the arc-shaped plate, and the fixing rod is fixedly connected to the operating rod to make the arc-shaped plate move back and forth. A limiting body is fixedly set on the inner wall of the discharge nozzle, and the lower end of the limiting body extends into the guide groove and slides in the guide groove to guide the discharge nozzle to swing back and forth.

7. A granular material conveying device for producing a plastic track according to claim 1, characterized in that: The lower surface of the cone panel is concave to form an arc-shaped groove, and a plurality of arc-shaped grooves are arranged at intervals between the busbars of the cone panel. A plurality of slits are also provided at one end of the cone panel that is suspended, and the plurality of slits cut the one end of the cone panel that is suspended into a plurality of arc-shaped sheets that are easy to vibrate.

8. The granular material conveying device for producing a plastic track according to claim 2, characterized in that: The vibration rod includes an articulated frame, an upper rod and a lower rod. The articulated frame is hinged to the operating rod. The upper rod is fixedly arranged on the upper side of the articulated frame. The upper rod is elastic. A hard rod is elastically and telescopically arranged on the upper end of the upper rod. The hard rod has a rolling roller. The roller contacts the protrusion of the vibration washboard. A rigid lower rod is fixedly arranged on the lower side of the articulated frame. A contact head is arranged at the lower end of the lower rod. The contact head contacts the upper surface of the conical panel.

9. The granular material conveying device for producing a plastic track according to claim 1, characterized in that: The reciprocating device includes a swinging body, a passive gear, a driving gear and a power motor. A pneumatic cover is fixedly arranged on the upper side of the pneumatic dispersion box to close the inner cavity of the pneumatic dispersion box. The pneumatic cover is provided with a second guide groove and a first guide groove parallel to each other. The second guide groove and the first guide groove are respectively located on the upper sides of two driving shafts. A first reciprocating rod sliding left and right is arranged in the second guide groove. A second reciprocating rod sliding left and right is arranged in the first guide groove. The swinging body is rotatably arranged on the pneumatic cover, and the swinging body is located between the second guide groove and the first guide groove. The swinging body is a T-shaped structure. The swinging body includes two first rods and one second rod. The first rod and the second rod are both provided with a sliding groove. The first reciprocating rod and the second reciprocating rod slide in the two first rods respectively. The passive gear rotates on the pneumatic cover, and a sliding shaft is rotatably arranged on the passive gear. The sliding shaft slides in the sliding groove of the second rod. The power motor is fixedly arranged on the pneumatic cover. The shaft of the power motor is fixedly provided with a driving gear, and the driving gear is meshed with the passive gear.

10. The granular material conveying device for producing a plastic track according to claim 1, characterized in that: It also includes an air pump. A dehumidification cover is arranged on the upper side of the spiral transport box, and the dehumidification cover seals the inner cavity of the spiral transport box. The dehumidification cover itself is provided with a plurality of ventilation holes. A ventilation groove is provided in the middle of the drive shaft. The air pump is arranged on the outside of the spiral transport box, and the air outlet of the air pump is respectively connected to two air pipes through a one-to-two adapter. The two air pipes are respectively connected to the bottom air inlet and the ventilation groove of the drive shaft.

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