A sanding device for a waterproofing membrane

Abstract

The present application relates to waterproofing membrane production technology field, disclose a kind of sanding processing device for waterproofing membrane, comprising: rack;Traction roller, symmetrically set in the both ends of rack;Shell, setting in the top of rack;Sand leveling mechanism, setting in the inside of shell, for the uniform paving after sanding roll material;Recycling tank, setting in the inside of rack;Sanding mechanism, setting in the top of rack, and sanding mechanism is located in the side of shell;Control box, setting in the side of rack.The present application structure is reasonable, the continuity and uniformity of sanding process are improved by sanding mechanism, reduce the probability of sand material agglomeration, bridging, improve the fluidity and dispersibility of sand material, sand material is guided dispersion, lateral spreading and leveling treatment by sand leveling mechanism on the surface of base fabric, sand material forms relatively uniform sand layer on the surface of base fabric, improves the sanding quality of roll material surface, to improve the finished product quality of waterproofing membrane.

Description

Technical Field

[0001] This invention relates to the field of waterproof membrane production technology, and more specifically, to a sand-spreading processing device for waterproof membranes. Background Technology

[0002] Waterproof membrane is a sheet-like waterproof material with asphalt-based materials, polymer materials, or composite materials as the main functional layers, and is combined with a base layer, isolation layer, and other structural components. It is usually stored, transported, and installed in rolls and is widely used in waterproofing scenarios such as building roofs, underground engineering, tunnels, bridges, subways, municipal pipe corridors, and water conservancy facilities. It is used to form a continuous waterproof barrier on the base surface to prevent the infiltration of rainwater, groundwater, or other liquid media.

[0003] In the production process of waterproof membrane, it is usually necessary to go through the following steps in sequence: raw material preparation, substrate conveying, coating or composite molding, surface treatment, cooling and shaping, and winding to form a continuous roll of waterproof material that meets the requirements of use. In order to prevent the membrane from sticking together during winding and transportation and to improve the roughness and anti-slip properties of the membrane surface, sand is usually sprinkled on the surface of the membrane so that the sand adheres to the surface of the membrane, thereby forming a sand layer structure on the surface of the membrane.

[0004] However, existing sand-spreading processing devices for waterproof membranes still have the following shortcomings in actual use. Existing sand-spreading structures mostly adopt single-drop or free-fall sand methods. During the dropping process, the sand is prone to falling in concentrated strands, local accumulation, or discontinuous dropping, resulting in uneven distribution of the sand layer on the membrane surface, affecting the sand-spreading quality, and thus affecting the finished quality of the waterproof membrane. Existing devices usually cannot adaptively adjust the dropping range according to the changes in the width of the base fabric, which easily leads to sand waste. Secondly, after the sand falls onto the surface of the base fabric, there is a lack of effective guiding, dispersing, and leveling structures, resulting in inconsistent sand layer thickness and affecting the uniformity of sand spreading on the membrane surface.

[0005] There are currently no effective solutions to the problems in the relevant technologies. Summary of the Invention

[0006] In view of the problems in the related technologies, the present invention proposes a sand-spreading processing device for waterproof membranes to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by the present invention is as follows:

[0008] A sand-spreading processing device for waterproof membrane includes: a frame; traction rollers symmetrically arranged at both ends of the frame; a housing located at the top of the frame; a sand-distributing mechanism located inside the housing, the sand-distributing mechanism including a first electric telescopic rod connected to the top of the housing, a flow-dividing arc plate driven to rise and fall by the first electric telescopic rod, and sand-distributing plates symmetrically and movably connected to both ends of the flow-dividing arc plate, the sand-distributing plates being used to guide, disperse, and laterally spread the sand-spreading membrane; a recovery box located inside the frame; and the sand-spreading mechanism located above the frame and on one side of the housing. The sand-spreading mechanism includes a support platform, a sand-spreading box mounted on the support platform, an inverted V-shaped diverting shell inside the sand-spreading box, and two sets of sand-spreading rollers located below the diverting shell. A material feeding gap is formed between the two sets of sand-spreading rollers. The support platform has a material feeding channel corresponding to the material feeding gap. A photoelectric sensor for detecting the edge position of the tire base fabric is installed below the support platform. A first telescopic shell, a second telescopic shell, and a second electric telescopic rod are installed at both ends of the material feeding channel for adjusting the effective material feeding length of the material feeding channel. A control box is located on one side of the frame and is electrically connected to the photoelectric sensor and the second electric telescopic rod.

[0009] As a preferred embodiment of the present invention, a connecting plate is provided at the bottom end of the first electric telescopic rod, a flow-dividing arc plate is provided at the bottom end of the connecting plate, and a support strip is provided at the bottom end of the connecting plate away from the flow-dividing arc plate; a square shell is provided on one side of the flow-dividing arc plate, and the bottom end of the square shell is fixedly connected to the support strip. This structure enables the flow-dividing arc plate and the sand-leveling plate to be raised and lowered as a whole under the drive of the first electric telescopic rod, to adapt to the leveling requirements of sand layers of different thicknesses.

[0010] Furthermore, a threaded rod is installed inside the square shell, and a slider is fitted on the outside of the threaded rod. The slider and the threaded rod move through a threaded engagement. A first motor that drives the threaded rod to rotate is installed at the end of the square shell away from the diverting arc plate. Sliding windows are opened on both sides of the square shell, and several protective brushes are installed at both ends of the sliding windows. Sliding rods are symmetrically arranged inside the square shell and outside the threaded rod. Through this mechanism, this device can perform guiding, dispersing, lateral spreading, and leveling treatments on base fabrics of different widths.

[0011] Furthermore, the sand-equalizing plate includes insertion seats at both ends of the flow-dividing arc plate. A first connecting shaft is rotatably mounted inside the insertion seats. A sand-equalizing corrugated plate is mounted on one side of the first connecting shaft, and a connecting strip is mounted on one side of the sand-equalizing corrugated plate. A second connecting shaft is mounted at the bottom end of the connecting strip, and a leveling strip is mounted at the bottom end of the sand-equalizing corrugated plate. Sliding support strips that slide and engage with the sliding rod are mounted at both ends of the slider. A third connecting shaft is mounted at the bottom end of the sliding support strip, and a driving strip is mounted on the outside of the third connecting shaft. One end of the driving strip is rotatably fitted onto the outside of the third connecting shaft, and the other end of the driving strip has an elongated oval displacement compensation groove along its length. The second connecting shaft passes through and slides within the displacement compensation groove. Through this mechanism, the device can achieve lateral spreading and leveling of the sand material by the sand-equalizing plate.

[0012] Furthermore, a protective shell is installed on the outside of the sand spreading box. One end of each of the two sets of sand spreading rollers extends into the protective shell and is equipped with meshing gears. The two sets of gears mesh with each other, and one set of gears is connected to a second motor. Through this mechanism, the device can improve the fluidity and dispersion of sand, and reduce edge leakage and ineffective sand spreading.

[0013] Furthermore, several guide blocks are staggered on the outer side of the distribution shell, and a heat-conducting cavity is formed inside the distribution shell, extending along the inverted V-shaped contour of the distribution shell. Thermoelectric wires are symmetrically arranged inside the heat-conducting cavity, an oil inlet is located on one side of the protruding part of the heat-conducting cavity, and an oil outlet is located at the bottom of the heat-conducting cavity. Reinforcing ribs are fixedly connected to the inner wall of the sand-spreading box inside the distribution shell. Through this mechanism, the device enables the sand to undergo preheating and dehumidification treatment as it slides along the surface of the distribution shell.

[0014] Furthermore, the surface of the sand-spreading roller is provided with several sand grooves, which are spaced apart along the circumference of the corresponding sand-spreading roller and are staggered on the sand-spreading roller; a cleaning scraper is provided on the outer side of the sand-spreading roller and is fixedly connected to the inner wall of the sand-spreading box. Through this mechanism, the device can improve the continuity and uniformity of the sand-spreading process.

[0015] Furthermore, chambers are formed at both ends of the discharge channel, and first sliding grooves are formed on both sides of the chambers. A first telescopic shell is installed inside the chamber, and first sliding strips that slide in conjunction with the first sliding grooves are provided on both sides of the first telescopic shell. Second sliding grooves are symmetrically formed on the inner wall of the first telescopic shell. A dust cover that extends and retracts synchronously with the first telescopic shell is provided at the top opening of the chamber. The two ends of the dust cover are fixedly connected to the inner wall of the support platform and the side wall of the first telescopic shell, respectively. The support platform has sand-discharging ramps that slope downwards towards the recycling box at both ends of the discharge channel. A second telescopic shell is installed inside the first telescopic shell, and second sliding strips that slide in conjunction with the second sliding grooves are symmetrically formed on the outer side of the second telescopic shell. A second electric telescopic rod is installed inside the chamber, and the telescopic end of the second electric telescopic rod is connected to the second telescopic shell. Through this mechanism, the device can achieve an effective material discharge area that matches the width of the tire base fabric.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The present invention has a reasonable structure. Through the sand spreading mechanism and the sand leveling mechanism, it realizes the sand preheating and dehumidification, stable spreading, width adaptive adjustment and uniform leveling of the sand spreading process of waterproof membrane, thereby improving the processing stability and finished product quality of waterproof membrane.

[0018] 2. By setting up a sand-spreading mechanism, the sand entering the sand-spreading box is diverted and guided by a diversion shell, forming a relatively uniform thin layer of sand flow on both sides of the inverted V-shaped diversion shell. Under the action of two sets of counter-rotating sand-spreading rollers, the sand is received and continuously conveyed through the sand grooves on the surface of the sand-spreading rollers, and then stably falls into the discharge channel through the discharge gap, thereby improving the continuity and uniformity of the sand-spreading process. At the same time, by setting up a heat-conducting cavity, thermoelectric wire, and heat-conducting medium inside the diversion shell, the sand is preheated and dehumidified as it slides along the surface of the diversion shell. This reduces the probability of sand clumping and bridging, and improves the flowability and dispersion of the sand. In addition, by setting up photoelectric sensors, a first telescopic shell, a second telescopic shell, and a second electric telescopic rod, the device can adjust the effective discharge length of the discharge channel according to the change of the width of the base fabric, so that the effective discharge area matches the width of the base fabric, reducing edge leakage and ineffective sand spreading, and improving the sand utilization rate.

[0019] 3. By setting up a sand distribution mechanism, the sand material falling onto the base fabric surface is guided, dispersed, spread laterally, and leveled using a diversion arc plate, a sand distribution corrugated plate, and leveling strips. This allows the sand material to form a relatively uniform sand layer on the base fabric surface, thereby improving the sand distribution quality on the roll surface. Finally, by setting up a recycling box, excess or overflowing sand material during the leveling process is collected and recycled, which not only reduces sand waste but also helps maintain the cleanliness of the surrounding environment of the equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention from another angle;

[0023] Figure 3 This is one of the cross-sectional views of a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention;

[0024] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a three-dimensional assembly schematic diagram of the sand-spreading mechanism in a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention.

[0026] Figure 6 This is a second cross-sectional view of a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention;

[0027] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0028] Figure 8 This is a plan view of the third cross-sectional view of a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention;

[0029] Figure 9 This is a bottom view of a support platform in a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention;

[0030] Figure 10 This is a partial cross-sectional view of a support platform in a sand-spreading processing device for waterproof membrane according to an embodiment of the present invention.

[0031] In the picture:

[0032] 1. Frame; 2. Traction roller; 3. Housing; 4. Sand equalization mechanism; 401. First electric telescopic rod; 402. Connecting plate; 403. Diverting arc plate; 404. Support bar; 405. Square shell; 4051. Threaded rod; 4052. Slider; 40521. Sliding support bar; 40522. Third connecting shaft; 40523. Drive bar; 40524. Displacement compensation groove; 4053. First motor; 4054. Sliding window; 4055. Protective brush; 4056. Slide rod; 406. Sand equalization plate; 4061. Plug-in socket; 4062. First connecting shaft; 4063. Sand equalization corrugated plate; 4064. Connecting bar; 4065. Second connecting shaft; 4066. Leveling bar; 5. Recycling box; 6. Sand spreading mechanism; 601. Support platform; 601 1. Feeding channel; 6012. Chamber; 6013. First sliding groove; 6014. First telescopic shell; 6015. First sliding bar; 6016. Second sliding groove; 6017. Second telescopic shell; 6018. Second sliding bar; 6019. Second electric telescopic rod; 6020. Dust cover; 602. Sand spreading box; 603. Protective shell; 604. Diverting shell; 6041. Guide block; 6042. Heat conducting cavity; 6043. Thermoelectric wire; 6044. Oil inlet; 6045. Oil outlet; 6046. Reinforcing rib; 605. Sand spreading roller; 6051. Sand trough; 6052. Feeding gap; 6053. Cleaning scraper; 606. Gear; 607. Second motor; 608. Photoelectric sensor; 609. Sand discharge slope; 7. Control box. Detailed Implementation

[0033] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0034] According to an embodiment of the present invention, a sand-spreading processing device for waterproof membrane is provided.

[0035] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1As shown, a sand-spreading processing device for waterproof roll material according to an embodiment of the present invention includes: a frame 1; traction rollers 2, symmetrically arranged at both ends of the frame 1; a housing 3, disposed at the top of the frame 1; a sand-spreading mechanism 4, disposed inside the housing 3, the sand-spreading mechanism 4 including a first electric telescopic rod 401 connected to the top of the housing 3, a diversion arc plate 403 driven to rise and fall by the first electric telescopic rod 401, and sand-spreading plates 406 symmetrically and movably connected to both ends of the diversion arc plate 403, the sand-spreading plates 406 being used to guide and disperse the sand-spreading roll material and lay it horizontally; a recovery box 5, disposed inside the frame 1; and a sand-spreading mechanism 6, disposed above the frame 1 and located on one side of the housing 3, the sand-spreading mechanism 6 including a support platform 601, and a sand-spreading device 606 being provided with a sand-spreading mechanism 606. A sand-spreading box 602 is placed on a support platform 601, an inverted V-shaped diversion shell 604 is set inside the sand-spreading box 602, and two sets of sand-spreading rollers 605 are located below the diversion shell 604. A material feeding gap 6052 is formed between the two sets of sand-spreading rollers 605. A material feeding channel 6011 corresponding to the material feeding gap 6052 is opened on the support platform 601. A photoelectric sensor 608 for detecting the edge position of the tire base fabric is set below the support platform 601. A first telescopic shell 6014, a second telescopic shell 6017 and a second electric telescopic rod 6019 are set at both ends of the material feeding channel 6011 for adjusting the effective feeding length of the material feeding channel 6011. A control box 7 is set on one side of the frame 1. The control box 7 is electrically connected to the photoelectric sensor 608 and the second electric telescopic rod 6019 respectively.

[0036] With the help of the above-mentioned technical solution of the present invention, the present invention has a reasonable structure. Through the sand spreading mechanism 6 and the sand leveling mechanism 4, the sand is preheated and dehumidified, the sand is spread stably, the width is adaptively adjusted and the sand is leveled evenly in the sand spreading process of waterproof membrane, thereby improving the processing stability and finished product quality of waterproof membrane.

[0037] In one embodiment, such as Figure 2-5As shown, for the aforementioned sand equalization mechanism 4, a connecting plate 402 is provided at the bottom end of the first electric telescopic rod 401, a flow-dividing arc plate 403 is provided at the bottom end of the connecting plate 402, and a support bar 404 is provided at the bottom end of the connecting plate 402 away from the flow-dividing arc plate 403; a square shell 405 is provided on one side of the flow-dividing arc plate 403, and the bottom end of the square shell 405 is fixedly connected to the support bar 404. This structure enables the flow-dividing arc plate 403 and the sand equalization plate 406 to rise and fall as a whole under the drive of the first electric telescopic rod 401, to adapt to the leveling requirements of sand layers of different thicknesses. The square shell 405 has a threaded rod 4051 inside, and a slider 4052 is sleeved on the outside of the threaded rod 4051. The slider 4052 and the threaded rod 4051 move through a threaded engagement. A first motor 4053 that drives the threaded rod 4051 to rotate is provided at the end of the square shell 405 away from the diverting arc plate 403. Sliding windows 4054 are provided on both sides of the square shell 405. Several protective brushes 4055 are provided at both ends of the sliding windows 4054. Sliding rods 4056 are symmetrically arranged inside the square shell 405 and on the outside of the threaded rod 4051. The sand equalization plate 406 includes plug-in seats 4061 disposed at both ends of the flow-dividing arc plate 403. A first connecting shaft 4062 is rotatably disposed inside the plug-in seat 4061. A sand equalization corrugated plate 4063 is disposed on one side of the first connecting shaft 4062. A connecting strip 4064 is disposed on one side of the sand equalization corrugated plate 4063. A second connecting shaft 4065 is disposed at the bottom end of the connecting strip 4064. A leveling strip 4066 is disposed at the bottom end of the sand equalization corrugated plate 4063. Sliding support strips 40521 that slide in cooperation with the sliding rod 4056 are disposed at both ends of the slider 4052. A third connecting shaft 40522 is disposed at the bottom end of the sliding support strip 40521. A drive bar 40523 is provided on the outer side of the connecting shaft 40522. One end of the drive bar 40523 is rotatably sleeved on the outer side of the third connecting shaft 40522. The other end of the drive bar 40523 is provided with an elongated displacement compensation groove 40524 along its length direction. The second connecting shaft 4065 is inserted and slidably fitted into the displacement compensation groove 40524. This enables the use of the diversion arc plate 403, the sand-equalizing wave plate 4063, and the leveling bar 4066 to guide, disperse, laterally spread, and level the sand falling onto the surface of the base fabric, so that the sand forms a relatively uniform sand layer on the surface of the base fabric, thereby improving the sand spreading quality on the surface of the roll material.

[0038] Preferably, the protective brush 4055 is a flexible safety brush, which uses dense bristles to flexibly seal the reciprocating gap between the sliding window 4054 and the drive bar 40523, so as to prevent dust or large particles of impurities from entering the interior of the square shell 405, thereby reducing the possibility of impurities entering the interior of the square shell 405 and causing the transmission mechanism to jam.

[0039] In addition, the elongated displacement compensation groove 40524 is used to absorb the radial displacement difference generated when the linear motion of the slider 4052 is converted into the rotational motion of the uniform sand wave plate 4063, thereby reducing the possibility of rigid jamming.

[0040] The working principle of the sand equalization mechanism 4 is as follows: First, the control box 7 controls the first electric telescopic rod 401 to drive the connecting plate 402, the diversion arc plate 403 and the sand equalization plate 406 to rise and fall as a whole, thereby adjusting the distance between the sand equalization mechanism 4 and the surface of the tire base cloth.

[0041] After the sand is spread, the first electric telescopic rod 401 drives the sand-spreading plate 406 and the flow-dividing arc plate 403 to gradually move downward. At the same time, the first motor 4053 drives the threaded rod 4051 to rotate. Under the rotation of the threaded rod 4051, the slider 4052 moves along the axial direction of the threaded rod 4051. Under the guidance of the slider 4056 and the cooperation of the sliding support bar 40521, it maintains stable linear motion.

[0042] At this time, as the slider 4052 moves, it drives the third connecting shaft 40522 to move as well. One end of the drive bar 40523 moves with the third connecting shaft 40522 and rotates relative to it. The other end of the drive bar 40523 slides with the second connecting shaft 4065 through the displacement compensation groove 40524. Under the pushing action of the drive bar 40523, the second connecting shaft 4065 drives the uniform sand wave plate 4063 to rotate around the first connecting shaft 4062 through the connecting bar 4064, so as to adjust the unfolding angle of the uniform sand wave plate 4063. Since the linear motion of the slider 4052 is not completely consistent with the rotation trajectory of the uniform sand wave plate 4063 around the first connecting shaft 4062, the second connecting shaft 4065 can slide within the elongated displacement compensation groove 40524, thereby absorbing the radial displacement difference generated when the linear motion is converted into rotational motion. This prevents rigid over-constraint from forming between the drive bar 40523, the second connecting shaft 4065, and the uniform sand wave plate 4063, reducing the risk of mechanism jamming. When the unfolding angle of the uniform sand wave plate 4063 reaches the preset angle, the first motor 4053 stops rotating, keeping the uniform sand wave plate 4063 at its current angle.

[0043] The first electric telescopic rod 401 drives the sand-equalizing plate 406 to move downward to a preset distance. Under the action of the diversion arc plate 403, the sand on the center surface of the base fabric is initially guided and dispersed to both sides. The dispersed sand is then diverted laterally and spread evenly under the action of the sand-equalizing wave plate 4063. At the same time, it is leveled under the action of the leveling strip 4066, so that the sand forms a relatively uniform sand layer on the surface of the base fabric. Excess sand overflows outward under the wave structure of the sand-equalizing wave plate 4063 and finally falls into the inside of the recycling box 5 for recycling.

[0044] In one embodiment, such as Figure 6-10As shown, for the sand-spreading mechanism 6, a protective shell 603 is provided on the outside of the sand-spreading box 602. One end of each of the two sets of sand-spreading rollers 605 extends into the protective shell 603 and is respectively provided with meshing gears 606. The two sets of gears 606 mesh with each other, and one set of gears 606 is connected to the second motor 607. Several guide blocks 6041 are staggered on the outside of the diversion shell 604. A heat-conducting cavity 6042 is opened inside the diversion shell 604, and the heat-conducting cavity 6042 extends along the inverted V-shaped contour of the diversion shell 604. Thermoelectric wires 6043 are symmetrically arranged inside the heat-conducting cavity 6042. An oil inlet port 6044 is provided on one side of the protrusion of the heat-conducting cavity 6042, and an oil outlet port 6045 is provided at the bottom of the heat-conducting cavity 6042. The inner part of the diversion shell 604... The device is equipped with reinforcing ribs 6046 fixedly connected to the inner wall of the sand spreading box 602, and the reinforcing ribs 6046 are fixedly connected to the diversion shell 604. The surface of the sand spreading roller 605 has several sand grooves 6051, which are spaced apart along the circumference of the corresponding sand spreading roller 605 and are staggered on the sand spreading roller 605. A cleaning scraper 6053 fixedly connected to the inner wall of the sand spreading box 602 is provided on the outer side of the sand spreading roller 605. Through this mechanism, the device can improve the continuity and uniformity of the sand spreading process. The discharge channel 6011 has chambers 6012 at both ends. First sliding grooves 6013 are formed on both sides of each chamber 6012. A first telescopic shell 6014 is installed inside each chamber 6012. First sliding strips 6015, which slide in conjunction with the first sliding grooves 6013, are provided on both sides of the first telescopic shell 6014. Second sliding grooves 6016 are symmetrically formed on the inner wall of the first telescopic shell 6014. A dust cover 6020, which extends and retracts synchronously with the first telescopic shell 6014, covers the top opening of the chamber 6012. The two ends of the dust cover 6020 are respectively connected to the support platform. The inner wall of support platform 601 and the side wall of first telescopic shell 6014 are fixedly connected. Support platform 601 is provided with sand-discharging inclined surfaces 609 sloping downwards towards the recycling box 5 at both ends of the discharge channel 6011. A second telescopic shell 6017 is provided inside the first telescopic shell 6014. Second sliding strips 6018, which slide and cooperate with the second sliding groove 6016, are symmetrically arranged on the outer side of the second telescopic shell 6017. A second electric telescopic rod 6019 is located inside chamber 6012, and the telescopic end of the second electric telescopic rod 6019 is connected to the second telescopic shell 6017. This design allows the effective material discharge area to match the width of the base fabric, reducing edge leakage and ineffective sand spreading, and improving sand utilization.

[0045] It should be noted that the interior of the heat-conducting cavity 6042 is filled with a heat-conducting medium, such as heat-conducting oil, silicone oil, mineral oil, or other high-temperature resistant heat-conducting fluids. The heat-conducting medium is injected and recovered through the oil inlet port 6044 and the oil outlet port 6045. The thermoelectric wire 6043 is usually composed of a resistance heating wire, an insulating covering layer, and an outer protective layer. The working principle is that when the current passes through the resistance heating wire in the energized state, Joule heat is generated. The heat is transferred to the heat-conducting medium and the shunt shell 604 through the insulating covering layer and the outer protective layer, thereby maintaining the shunt shell 604 at a preset temperature.

[0046] In addition, the photoelectric sensor 608 typically includes a light source emitting end, a light signal receiving end, a signal processing unit, and an external protective housing. When the object to be detected enters the detection area, it will block the light path or cause a change in the intensity of the reflected light. The light signal receiving end transmits the changed signal to the signal processing unit, which then determines the position of the tire base fabric edge and outputs a digital or analog control signal. In this embodiment, the photoelectric sensor 608 preferably adopts an industrial-grade diffuse reflection sensor with high response frequency and strong anti-dust interference capability (such as GP-Y45N, E3Z-T61, SK-MA30, etc.).

[0047] In this invention, two sets of photoelectric sensors 608 collect the occlusion status or edge position information of the two sides of the tire base fabric and transmit the detection signal to the control box 7. The control box 7 adjusts the feeding channel 6011 according to the detection results of the photoelectric sensors 608 on both sides.

[0048] Specifically, let the maximum initial width of the feed channel 6011 be... The actual width of the tire base fabric detected in real time by the two sets of photoelectric sensors 608 is The PLC inside control box 7 calculates the width difference. The PLC outputs displacement commands to the second electric telescopic rods 6019 on both sides, causing each second electric telescopic rod 6019 on each side to extend a stroke S towards the center, where:

[0049] ;

[0050] Through the above control process, the blocking range of the first telescopic shell 6014 and the second telescopic shell 6017 can be precisely controlled, so that the effective material dropping length matches the width of the tire base fabric.

[0051] The working principle of the sand spreading mechanism 6 is as follows: First, the waterproof membrane base fabric to be processed is pulled through the traction roller 2 and passed directly below the sand spreading mechanism 6, so that the membrane is continuously conveyed along the path on the frame 1. At the same time, the pre-prepared sand is continuously added from above the sand spreading box 602 through an external conveying device. The second motor 607 is started by the control box 7. The second motor 607 drives one set of gears 606 to rotate. Under the action of the meshing transmission of the gears 606, the two symmetrically arranged sand spreading boxes are driven. The sand rollers 605 rotate in opposite directions. At this time, the sand moves downward under the action of gravity and comes into contact with the flow divider shell 604. It slides downward on both sides of the inverted V-shaped flow divider shell 604. At the same time, under the action of the guide block 6041, a relatively uniform thin layer of sand flow is formed. At this time, the thermoelectric wire 6043 in the heat conduction cavity 6042 inside the flow divider shell 604 heats the heat conduction medium and the flow divider shell 604, so that the surface of the flow divider shell 604 is kept in a preheated state. During the downward sliding of the sand, short-term preheating and dehumidification are performed.

[0052] The preheated sand falls onto the outside of the two sets of sand-spreading rollers 605. At this time, driven by the second motor 607, the sand-spreading rollers 605 rotate in opposite directions. During the rotation, the sand groove 6051 on the outside of the sand-spreading rollers 605 collects the preheated sand and continuously falls into the discharge channel 6011 when rotating to the discharge gap 6052. At the same time, the cleaning scraper 6053 scrapes off the sand on the surface of the sand-spreading rollers 605 after discharge to make the discharge more stable.

[0053] When the photoelectric sensor 608 detects a change in the width of the tire base fabric, the control box 7 controls the second electric telescopic rod 6019 to extend or retract according to the width of the tire base fabric. With the cooperation of the second sliding bar 6018 and the second sliding groove 6016, the second telescopic shell 6017 moves. When the second electric telescopic rod 6019 moves the second telescopic shell 6017 to the maximum distance, the first telescopic shell 6014 moves with the cooperation of the first sliding bar 6015 and the first sliding groove 6013 to adjust the effective feeding length of the feeding channel 6011 so that the effective feeding length matches the width of the tire base fabric.

[0054] When the first telescopic shell 6014 and / or the second telescopic shell 6017 extend to reduce the effective discharge length of the discharge channel 6011, the excess sand continuously falling from both ends of the sand-spreading roller 605 falls onto the sand-discharging inclined surface 609. The sand-discharging inclined surface 609 slopes downward toward the recovery box 5, and the angle between the sand-discharging inclined surface 609 and the horizontal plane is preferably 45 degrees to 60 degrees, so that the excess sand can slide naturally along the sand-discharging inclined surface 609 into the recovery box 5, reducing the accumulation of sand above the chamber 6012. The dust cover 6020 (preferably an accordion-type dust cover in this embodiment) covering the top opening of the chamber 6012 extends and retracts synchronously with the first telescopic shell 6014 to prevent sand from entering the first sliding groove 6013 and the second sliding groove 6016, thereby reducing the possibility of jamming of the telescopic adjustment mechanism.

[0055] It should be noted that, in specific implementation, the control box 7 contains a PLC control system, and the sand equalization mechanism 4 and the sand spreading mechanism 6 are electrically connected to the PLC control system. The start command is issued through the human-machine interface (HMI) of the control box 7. This signal is transmitted from the HMI to the PLC control system. After receiving the command, the PLC controls the first electric telescopic rod 401, the first motor 4053, the second electric telescopic rod 6019, the second motor 607, and the photoelectric sensor 608 to rotate and synchronize according to preset data, making precise operations during the sand spreading operation and ensuring that all operations are performed accurately.

[0056] To facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process will be described in detail below.

[0057] In practical applications, the waterproof membrane base fabric to be processed is first pulled by the traction roller 2, continuously conveyed along a preset path on the frame 1, and passes directly below the sand spreading mechanism 6 and the sand equalization mechanism 4. While the base fabric moves continuously through the external machinery, the external conveying device continuously adds pre-prepared sand into the sand spreading box 602. During the sand spreading process, the sand moves downward under gravity and comes into contact with the distribution shell 604, sliding downward on both sides of the inverted V-shaped distribution shell 604. At the same time, a relatively uniform thin layer of sand is formed under the guiding action of the guide block 6041. The heating wire 6043 heats the heat-conducting medium and the distribution shell 604, keeping the surface of the distribution shell 604 in a preheated state. The heating temperature in the heat-conducting cavity 6042 is preferably controlled between 50°C and 90°C, keeping the surface temperature of the outer distribution surface of the distribution shell 604 between 40°C and 70°C, so as to ensure the preheating and dehumidification effect of the sand while avoiding excessive temperature affecting the stability of subsequent sand spreading. The preheated sand is spread onto the base fabric through the feeding gap 6052 and the feeding channel 6011 (the working principle of the sand spreading mechanism 6 is as described above).

[0058] When the sand falls onto the surface of the base fabric and enters directly below the sand equalization mechanism 4, the first electric telescopic rod 401 drives the diversion arc plate 403 and the sand equalization plate 406 to move down to the preset position. At the same time, the first motor 4053 drives the sand equalization wave plate 4063 to unfold to the preset angle. The diversion arc plate 403 first disperses the sand, and the sand equalization wave plate 4063 then spreads the sand laterally. The leveling strip 4066 levels the sand layer (the working principle of the sand equalization mechanism 4 is as described above). The excess sand finally falls into the recycling box 5 for recycling.

[0059] In summary, with the help of the above-mentioned technical solution of the present invention, the present invention has a reasonable structure. Through the sand spreading mechanism 6 and the sand equalization mechanism 4, the sand preheating and dehumidification, stable spreading, width adaptive adjustment and uniform leveling of the sand in the sand spreading process of waterproof membrane are realized, thereby improving the processing stability and finished product quality of waterproof membrane. By setting up the sand spreading mechanism 6, the sand entering the sand spreading box 602 is diverted and guided by the diversion shell 604, so that the sand forms a relatively uniform thin layer of sand flow on both sides of the inverted V-shaped diversion shell 604. Under the action of two sets of sand spreading rollers 605 rotating in opposite directions, the sand is received and continuously transported through the sand groove 6051 on the surface of the sand spreading roller 605, and then falls stably into the discharge channel 6011 through the discharge gap 6052, thereby improving the continuity and uniformity of the sand spreading process. At the same time, by setting the heat conducting cavity 6042, the thermoelectric wire 6043 and the heat conducting medium inside the diversion shell 604, the sand completes the preheating and dehumidification treatment during the sliding process along the surface of the diversion shell 604. This reduces the probability of sand clumping and bridging, and improves the flowability and dispersion of the sand. Furthermore, by setting up a photoelectric sensor 608, a first telescopic shell 6014, a second telescopic shell 6017, and a second electric telescopic rod 6019, the device can adjust the effective discharge length of the discharge channel 6011 according to changes in the width of the base fabric, thus matching the effective discharge area with the width of the base fabric, reducing edge leakage and ineffective sand spreading, and improving sand utilization. By setting up a sand equalization mechanism 4, the flow-diverting arc plate 403, the sand equalization wave plate 4063, and the leveling strip 4066 guide, disperse, laterally spread, and level the sand falling onto the surface of the base fabric, forming a relatively uniform sand layer on the surface of the base fabric, thereby improving the quality of sand spreading on the roll surface. Finally, by setting up a recycling box 5, the overflow or excess sand during the leveling process is collected and recycled, which not only reduces sand waste but also helps maintain the cleanliness of the surrounding environment.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sand-spreading processing device for waterproof membrane rolls, characterized in that, include: Rack (1); Traction rollers (2) are symmetrically arranged at both ends of the frame (1); The housing (3) is disposed at the top of the frame (1); The sand equalization mechanism (4) is located inside the housing (3). The sand equalization mechanism (4) includes a first electric telescopic rod (401) connected to the top of the housing (3), a diversion arc plate (403) driven to rise and fall by the first electric telescopic rod (401), and sand equalization plates (406) symmetrically and movably connected to both ends of the diversion arc plate (403). The sand equalization plates (406) are used to guide and disperse the sand-spreading roll material and lay it horizontally. The recycling box (5) is located inside the frame (1); A sand-spreading mechanism (6) is located above the frame (1) and on one side of the housing (3). The sand-spreading mechanism (6) includes a support platform (601), a sand-spreading box (602) on the support platform (601), an inverted V-shaped diversion shell (604) inside the sand-spreading box (602), and two sets of sand-spreading rollers (605) below the diversion shell (604). A material feeding gap (6052) is formed between the two sets of sand-spreading rollers (605). The support platform (601) has a material feeding channel (6011) corresponding to the material feeding gap (6052). A photoelectric sensor (608) for detecting the edge position of the tire base fabric is provided below the support platform (601). The two ends of the discharge channel (6011) are provided with a first telescopic shell (6014), a second telescopic shell (6017) and a second electric telescopic rod (6019) for adjusting the effective discharge length of the discharge channel (6011). The control box (7) is located on one side of the frame (1), and the control box (7) is electrically connected to the photoelectric sensor (608) and the second electric telescopic rod (6019).

2. The sand-spreading processing device for waterproof membrane according to claim 1, characterized in that, The bottom end of the first electric telescopic rod (401) is provided with a connecting plate (402), the bottom end of the connecting plate (402) is provided with the diversion arc plate (403), and the bottom end of the connecting plate (402) is provided with a support bar (404) in the direction away from the diversion arc plate (403). A square shell (405) is provided on one side of the diversion arc plate (403), and the bottom end of the square shell (405) is fixedly connected to the support bar (404).

3. The sand-spreading processing device for waterproof membrane according to claim 2, characterized in that, The square shell (405) is provided with a threaded rod (4051) inside, and a slider (4052) is sleeved on the outside of the threaded rod (4051). The slider (4052) and the threaded rod (4051) move through a threaded engagement. A first motor (4053) that drives the threaded rod (4051) to rotate is provided at the end of the square shell (405) away from the diverting arc plate (403). The square shell (405) has sliding windows (4054) on both sides, and a number of protective brushes (4055) are provided at both ends of the sliding windows (4054). Slide rods (4056) are symmetrically arranged inside the square shell (405) and outside the threaded rod (4051).

4. The sand-spreading processing device for waterproof membrane according to claim 3, characterized in that, The sand equalization plate (406) includes a plug-in seat (4061) disposed at both ends of the flow divider arc plate (403). A first connecting shaft (4062) is rotatably disposed inside the plug-in seat (4061). A sand equalization corrugated plate (4063) is disposed on one side of the first connecting shaft (4062). A connecting strip (4064) is disposed on one side of the sand equalization corrugated plate (4063). A second connecting shaft (4065) is disposed at the bottom end of the connecting strip (4064). A leveling strip (4066) is disposed at the bottom end of the sand equalization corrugated plate (4063).

5. A sand-spreading processing device for waterproof membrane according to claim 4, characterized in that, The slider (4052) has sliding support bars (40521) at both ends that slide in cooperation with the slide rod (4056). The bottom end of the sliding support bar (40521) is provided with a third connecting shaft (40522). The outer side of the third connecting shaft (40522) is provided with a drive bar (40523) that is connected to the second connecting shaft (4065). One end of the drive bar (40523) is rotatably sleeved on the outer side of the third connecting shaft (40522). The other end of the drive bar (40523) has an elongated displacement compensation groove (40524) along its length direction. The second connecting shaft (4065) is inserted into and slides in cooperation with the displacement compensation groove (40524).

6. The sand-spreading processing device for waterproof membrane according to claim 1, characterized in that, The outer side of the sand-spreading box (602) is provided with a protective shell (603). One end of each of the two sets of sand-spreading rollers (605) extends into the protective shell (603) and is respectively provided with a gear (606) for meshing motion. The two sets of gears (606) mesh with each other, and one set of gears (606) is connected to the second motor (607).

7. The sand-spreading processing device for waterproof membrane according to claim 1, characterized in that, The outer side of the flow divider shell (604) is provided with a plurality of flow guide blocks (6041) staggered. The interior of the flow divider shell (604) is provided with a heat conduction cavity (6042), and the heat conduction cavity (6042) extends along the inverted V-shaped contour of the flow divider shell (604). The heat conduction wires (6043) are symmetrically arranged inside the heat conduction cavity (6042). An oil inlet port (6044) is provided on one side of the protrusion of the heat conduction cavity (6042), and an oil outlet port (6045) is provided at the bottom of the heat conduction cavity (6042). The interior of the diversion shell (604) is provided with a reinforcing rib (6046) that is fixedly connected to the inner wall of the sand spreading box (602), and the reinforcing rib (6046) is fixedly connected to the diversion shell (604).

8. The sand-spreading processing device for waterproof membrane according to claim 1, characterized in that, The surface of the sand spreading roller (605) is provided with a plurality of sand grooves (6051), the sand grooves (6051) are spaced apart along the circumferential direction corresponding to the sand spreading roller (605), and the sand grooves (6051) are staggered on the sand spreading roller (605); a cleaning scraper (6053) is provided on the outer side of the sand spreading roller (605) and is fixedly connected to the inner wall of the sand spreading box (602).

9. A sand-spreading processing device for waterproof membrane according to claim 1, characterized in that, The discharge channel (6011) has chambers (6012) at both ends, and first sliding grooves (6013) are provided on both sides of the chambers (6012). A first telescopic shell (6014) is provided inside the chambers (6012). First sliding strips (6015) that slide in cooperation with the first sliding grooves (6013) are provided on both sides of the first telescopic shell (6014). Second sliding grooves (6016) are symmetrically provided on the inner wall of the first telescopic shell (6014). The top opening of the chamber (6012) is covered with a dust cover (6020) that extends and retracts synchronously with the first telescopic shell (6014). The two ends of the dust cover (6020) are fixedly connected to the inner wall of the support platform (601) and the side wall of the first telescopic shell (6014), respectively. The support platform (601) is provided with sand discharge slopes (609) that are inclined downward toward the recycling box (5) at both ends of the discharge channel (6011).

10. A sand-spreading processing device for waterproof membrane according to claim 9, characterized in that, The first telescopic shell (6014) is provided with a second telescopic shell (6017) inside. The second telescopic shell (6017) is provided with a second sliding strip (6018) symmetrically arranged on the outside of the second telescopic shell (6017) to slide in cooperation with the second sliding groove (6016). The second electric telescopic rod (6019) is provided in the cavity (6012), and the telescopic end of the second electric telescopic rod (6019) is connected to the second telescopic shell (6017).

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