A roller conveyor

Abstract

The present invention belongs to the technical field of conveying equipment, and in particular, relates to a roller conveyor, including a base, and also including: a roller conveying mechanism, a top extrusion friction compensation mechanism, an inclination angle confirmation mechanism, a weighing feedback adjustment mechanism, a conveying power adjustment mechanism, a friction compensation starting mechanism, a friction coefficient control mechanism and a PLC controller. The present invention can quickly adjust the use inclination angle of the conveyor based on the use requirements, has a wider range of applications, and can automatically adjust the conveying power based on the conveying angle. The larger the conveying angle, the greater the conveying power. It can automatically start the extrusion friction compensation on the top of the article based on the size of the conveying angle and the weight of the article, and can more accurately adjust the friction coefficient of the outer surface of the conveying roller based on the conveying angle and the weight of the article.

Description

Technical Field

[0001] The invention belongs to the technical field of conveying equipment, and in particular relates to a roller conveyor. Background Art

[0002] Roller conveyor is a commonly used conveying equipment. It uses the rotation of rollers to transport various items. Roller conveyor plays an important role in various industries. It can improve production efficiency, reduce labor intensity, and reduce cargo damage. It is a very practical conveying equipment.

[0003] In the use of roller conveyors, there may be situations where objects need to be conveyed at an angle to overcome height differences. Therefore, the conveying pitch angle of the roller conveyor needs to be adjusted. When the roller conveyor has an inclination angle, in addition to overcoming resistance such as friction in the conveying direction, the object also needs to overcome the component of gravity along the inclined surface. The greater the inclination angle, the greater the gravity component, and a greater driving force is required to push the object upward for conveying. Currently, most roller conveyors are driven by fixed power. When the conveying angle needs to be adjusted, the smaller conveying power cannot meet the stable conveying of objects, and as the inclination angle increases, the The larger the angle, the more likely it is that the objects will slide down the slope, and a greater friction force is needed to prevent the objects from sliding down. The component of gravity along the slope will cause the objects to tend to slide downward. Only when the friction force given to the objects by the roller surface is greater than or equal to the component of gravity can the objects be stably transported upward. However, the current contact friction between the outer surface of the roller and the objects is fixed. When the inclination angle increases, the objects are prone to slipping, affecting the stable transportation of the objects. If the friction coefficient of the roller is set very high at the beginning, the friction between the roller and the objects will be too large, thereby accelerating the wear of the roller surface and transmission components, and affecting the service life of the roller conveyor. Summary of the invention

[0004] The object of the present invention is to provide a roller conveyor in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solution: a roller conveyor, including a base, and also including:

[0006] A roller conveying mechanism is fixedly mounted on the upper end of the base;

[0007] A top extrusion friction compensation mechanism is fixedly mounted on the upper end of the roller conveying mechanism;

[0008] A tilt angle confirmation mechanism, installed at a deflection position of the roller conveying mechanism;

[0009] A weighing feedback adjustment mechanism is fixedly mounted on the upper end of the base;

[0010] A conveying power adjustment mechanism is fixedly mounted on the upper end of the base and electrically connected to the roller conveying mechanism;

[0011] A friction compensation starting mechanism is installed on the top of the inner wall of the transmission power adjustment mechanism and is electrically connected to the top extrusion friction compensation mechanism;

[0012] A friction coefficient control mechanism is installed at the bottom of the inner wall of the conveying power adjustment mechanism and is electrically connected to the roller conveying mechanism;

[0013] The PLC controller is fixedly mounted on the upper end of the base and is electrically connected to the roller conveying mechanism, the top extrusion friction compensation mechanism, the tilt angle confirmation mechanism, the weighing feedback adjustment mechanism, the conveying power adjustment mechanism, the friction compensation starting mechanism and the friction coefficient control mechanism.

[0014] In the above-mentioned roller conveyor, the roller conveying mechanism includes a conveyor body, a plurality of conveying rollers are rotatably installed in the conveyor body, a motor drive assembly for driving the conveying rollers to rotate is fixedly installed on the outside of the conveyor body, a rotating frame is fixedly installed on the lower side of one end of the conveyor body, a support frame corresponding to the position of the rotating frame is fixedly installed on the upper end of the base, the support frame and the rotating frame are rotatably connected by a rotating shaft, and a plurality of electric push rods arranged side by side are rotatably connected to the lower side of one end of the conveyor body away from the rotating frame and the upper end of the base.

[0015] In the above-mentioned roller conveyor, the top extrusion friction compensation mechanism includes an L-shaped vertical plate fixedly installed on the rear side of the conveyor body, and the horizontal part of the L-shaped vertical plate is symmetrically fixed with two linear motors, and the lower moving ends of the two linear motors are fixedly connected to the same fixed cover, and the lower end of the fixed cover is fixedly provided with a pressure plate, and the lower end of the pressure plate is rotatably connected to a plurality of pressure rollers arranged side by side, and a double-axis motor is fixedly installed on the top of the inner wall of the fixed cover, and the output ends of both ends of the double-axis motor are fixedly connected to a rotating screw, and the end of the rotating screw away from the double-axis motor is rotatably connected to the inner wall of the fixed cover, and the rod wall of the rotating screw is threadedly sleeved with a moving plate, and the lower end side wall of the moving plate is fixedly connected to a plurality of moving rods with a U-shaped structure, and the lower ends of the plurality of moving rods are fixedly connected to the same side limit plate, and the side wall of the fixed cover is provided with a plurality of through holes for the moving rods to extend through.

[0016] In the above-mentioned roller conveyor, the inclination angle confirmation mechanism includes an arc-shaped electric slide rail fixedly mounted on the outer wall of the support frame, the front end of the slider in the arc-shaped electric slide rail is fixedly connected to a mounting plate, the end of the mounting plate close to the rotating shaft is fixedly connected to a confirmation switch, the shaft wall of the rotating shaft is fixedly connected to an extension rod, the end of the extension rod away from the rotating shaft is fixedly connected to a pressing round head, the outer wall of the support frame is also fixedly mounted with an angle scale plate located outside the arc-shaped electric slide rail, and the end of the mounting plate away from the rotating shaft is fixedly connected to a pointer.

[0017] In the above-mentioned roller conveyor, the weighing feedback adjustment mechanism includes an adjustment shell fixedly mounted on the upper end of the base, the inner wall of the adjustment shell is rotatably connected with an adjustment screw, the outer wall of the adjustment shell is fixedly mounted with an adjustment motor for driving the adjustment screw to rotate, the rod wall of the adjustment screw is threadedly sleeved with an adjustment seat, the inner wall of the adjustment shell is fixedly mounted with a feedback resistor rod arranged parallel to the adjustment screw, the lower end of the adjustment seat is fixedly connected with a feedback conductive contact electrically in contact with the feedback resistor rod, the upper end of the adjustment shell is also fixedly mounted with a weight scale plate, the upper end of the adjustment seat is fixedly mounted with an identification rod, and the upper end of the adjustment shell is provided with a strip opening for the upper end of the identification rod to extend through.

[0018] In the above-mentioned roller conveyor, the conveying power adjustment mechanism includes an adjustment shell fixedly mounted on the upper end of the base, the inner wall of the adjustment shell is rotatably connected to a transmission screw, the outer wall of the adjustment shell is fixedly mounted with a servo motor for driving the transmission screw to rotate, the rod wall of the transmission screw is threadedly sleeved with a transmission seat, the inner wall of the adjustment shell is fixedly mounted with a power resistor rod arranged parallel to the transmission screw, the side wall of the transmission seat is provided with a sleeve hole sleeved outside the power resistor rod, and the inner wall of the corresponding sleeve hole is fixedly connected with a power conductive contact piece electrically in contact with the power resistor rod.

[0019] In the above-mentioned roller conveyor, the friction compensation starting mechanism includes a plurality of guide slide bars fixedly installed side by side on the inner wall of the upper end of the adjustment shell, and the plurality of guide slide bars are slidably sleeved with the same trigger plate. A trigger switch is fixedly installed on the side of the trigger plate close to the transmission seat, and a plurality of squeezing springs sleeved on the outside of the guide slide bars are fixedly installed on the opposite side of the trigger plate and the adjustment shell.

[0020] In the above-mentioned roller conveyor, the friction coefficient control mechanism includes a plurality of control switches equidistantly fixedly mounted on the bottom of the inner wall of the adjustment shell, and an extrusion round head corresponding to the position of the control switch is fixedly mounted on the lower end of the transmission seat.

[0021] In the above-mentioned roller conveyor, an insulating column is fixedly installed inside the conveying roller, and a plurality of embedding grooves are evenly opened on the outer wall of the conveying roller. Friction protrusions are movably arranged in the embedding grooves, and one end of the friction protrusion located in the embedding groove is fixedly connected to a force-bearing rod, and the ends of multiple force-bearing rods in the same row away from the friction protrusions all extend into the conveying roller and are fixedly connected to the same force-bearing plate, a reset spring sleeved on the outside of the force-bearing rod is fixedly connected between the friction protrusion and the embedding groove, a thrust permanent magnet plate is fixedly connected to the side of the force-bearing plate away from the force-bearing rod, a plurality of thrust electromagnetic plates arranged opposite to the thrust permanent magnet plate are fixedly installed on the outer wall of the insulating column, and the outer wall of the conveying roller is covered with a layer of anti-slip rubber pad.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] By setting up the roller conveying mechanism, weighing feedback adjustment mechanism, conveying power adjustment mechanism and inclination angle confirmation mechanism, the conveyor's inclination angle can be quickly adjusted based on usage requirements, with a wider range of applications. The conveying power can be automatically adjusted based on the conveying angle. The larger the conveying angle, the greater the conveying power, thereby additionally overcoming the component force of the object's gravity along the inclined surface, ensuring the stability of the object conveying, and controlling the speed of power adjustment based on the weight of the conveyed object. The heavier the object, the greater the change in the conveying power as the conveying angle changes, thereby better adapting to the larger component force of heavy objects in the inclined surface direction, requiring a greater conveying power to meet the conveying requirements.

[0024] By setting up the top extrusion friction compensation mechanism and the friction compensation starting mechanism, the extrusion friction compensation on the top of the article can be automatically started based on the size of the conveying angle and the weight of the article, so as to avoid the problem that an excessively large conveying angle causes the component force of the article along the inclined surface to be too large, thus affecting the stable conveying of the article. The heavier the article, the smaller the inclination angle of the conveyor, the more the top extrusion friction compensation mechanism is started to ensure the conveying stability of the article. Because the heavier the article, the greater the component force of its gravity along the inclined surface, and the more likely the article will slide down and roll, it is necessary to use the top extrusion friction compensation mechanism in advance to ensure the stability of the article conveying.

[0025] By setting up the friction coefficient control mechanism and the roller conveying mechanism, the friction coefficient of the outer surface of the conveying roller can be adjusted more accurately based on the conveying angle and the weight of the article. The larger the conveying angle, the larger the friction coefficient of the outer surface of the conveying roller, and the heavier the article, the faster the friction coefficient adjustment process. As the inclination angle of the conveyor increases, the tendency of the article to slide down the inclined surface increases, and a greater friction force is required to prevent the article from sliding down. The component force of the object's gravity along the inclined surface will cause the object to have a tendency to slide downward. Only when the friction force given to the object by the conveying roller surface is greater than or equal to the component force of gravity along the inclined surface, can the object be stably conveyed upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a partial three-dimensional structural schematic diagram of the roller conveying mechanism of the present invention;

[0028] Figure 3 yes Figure 2 Structural diagram of the installation of the central rotating frame and the supporting frame;

[0029] Figure 4 It is a partial side cross-sectional structural schematic diagram of the top extrusion friction compensation mechanism of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the tilt angle confirmation mechanism of the present invention;

[0031] Figure 6 It is a cross-sectional structural schematic diagram of the weighing feedback adjustment mechanism of the present invention;

[0032] Figure 7 It is a cross-sectional structural schematic diagram of the transmission power adjustment mechanism of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the friction compensation starting mechanism of the present invention;

[0034] Fig. 9 It is a schematic diagram of the side cross-sectional structure of the conveying roller of the present invention;

[0035] Fig.10 yes Fig. 9 Enlarged view of part A.

[0036] In the figure: 1 base, 2 roller conveying mechanism, 21 conveyor body, 22 conveying roller, 23 motor drive assembly, 24 rotating frame, 25 support frame, 26 rotating shaft, 27 electric push rod, 28 insulating column, 29 embedding groove, 210 friction protrusion, 211 force rod, 212 force plate, 213 return spring, 214 thrust permanent magnet plate, 215 thrust electromagnetic plate, 216 anti-slip rubber pad, 3 top extrusion friction compensation mechanism, 31 L-shaped vertical plate, 32 linear motor, 33 fixed cover, 34 pressure plate, 35 pressure roller, 36 dual-axis motor, 37 rotating screw, 38 moving plate, 39 moving rod, 310 side limit plate, 4 tilt angle confirmation mechanism, 41 arc electric slide rail, 42 mounting plate, 43 confirmation switch, 44 extension rod, 45 pressing round head, 46 angle scale plate, 47 pointer, 5 weighing feedback adjustment mechanism, 51 adjustment shell, 52 adjustment screw, 53 adjustment motor, 54 adjustment seat, 55 feedback resistor rod, 56 feedback conductive contact piece, 57 weight scale plate, 58 identification rod, 6 transmission power adjustment mechanism, 61 adjustment shell, 62 transmission screw, 63 servo motor, 64 transmission seat, 65 power resistor rod, 66 power conductive contact piece, 7 friction compensation starting mechanism, 71 guide slide bar, 72 trigger plate, 73 trigger switch, 74 squeeze spring, 8 friction coefficient control mechanism, 81 control switch, 82 squeeze round head, 9 PLC controller. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] like Figure 1-Figure 10 As shown, a roller conveyor comprises a base 1 and further comprises:

[0039] The roller conveying mechanism 2 is fixedly mounted on the upper end of the base 1. The roller conveying mechanism 2 includes a conveyor body 21. A plurality of conveying rollers 22 are rotatably mounted in the conveyor body 21. A motor driving assembly 23 for driving the conveying rollers 22 to rotate is fixedly mounted on the outside of the conveyor body 21. A rotating frame 24 is fixedly mounted on the lower side of one end of the conveyor body 21. A support frame 25 corresponding to the position of the rotating frame 24 is fixedly mounted on the upper end of the base 1. The support frame 25 and the rotating frame 24 are rotatably connected by a rotating shaft 26. A plurality of electric push rods 27 arranged side by side are rotatably connected to the lower side of one end of the conveyor body 21 away from the rotating frame 24 and the upper end of the base 1. An insulating column 28 is fixedly mounted inside the conveying roller 22. A plurality of embedding grooves 29 are evenly arranged on the outer wall of the conveying roller 22. Friction rods 29 are movably arranged in the embedding grooves 29. The protrusion 210, one end of the friction protrusion 210 located in the embedding groove 29 is fixedly connected to a force-bearing rod 211, and the ends of multiple force-bearing rods 211 in the same row away from the friction protrusion 210 all extend into the conveying roller 22 and are fixedly connected to the same force-bearing plate 212. A return spring 213 sleeved on the outside of the force-bearing rod 211 is fixedly connected between the friction protrusion 210 and the embedding groove 29, and a thrust permanent magnet plate 214 is fixedly connected to the side of the force plate 212 away from the force-bearing rod 211. A plurality of thrust electromagnetic plates 215 arranged opposite to the thrust permanent magnet plate 214 are fixedly installed on the outer wall of the insulating column 28. The outer wall of the conveying roller 22 is coated with a layer of anti-slip rubber pad 216, which can stably transfer the objects, and the friction coefficient of the conveying roller 22 can be automatically adjusted based on the use requirements to ensure that the objects can be stably conveyed.

[0040] The top extrusion friction compensation mechanism 3 is fixedly installed at the upper end of the roller conveying mechanism 2. The top extrusion friction compensation mechanism 3 includes an L-shaped vertical plate 31 fixedly installed on the rear side of the conveyor body 21. The horizontal part of the L-shaped vertical plate 31 is symmetrically fixedly sleeved with two linear motors 32. The lower moving ends of the two linear motors 32 are fixedly connected to the same fixed cover 33. The lower end of the fixed cover 33 is fixedly installed with a pressure plate 34. The lower end of the pressure plate 34 is rotatably connected to a plurality of pressure rollers 35 arranged side by side. The top of the inner wall of the fixed cover 33 is fixedly installed with a double-axis motor 36. The output ends of both ends of the double-axis motor 36 are fixedly connected with The screw 37 is rotated, and one end of the screw 37 away from the dual-axis motor 36 is rotatably connected to the inner wall of the fixed cover 33. The rod wall of the rotating screw 37 is threadedly sleeved with a moving plate 38. The lower end side wall of the moving plate 38 is fixedly connected to multiple U-shaped moving rods 39. The lower ends of the multiple moving rods 39 are fixedly connected to the same side limit plate 310. The side wall of the fixed cover 33 is provided with multiple through holes for the moving rods 39 to extend through, which can provide additional top pressure on the objects when needed, thereby increasing the pressure between the objects and the conveying roller 22, improving the conveying friction, and ensuring stable conveying of the objects.

[0041] The tilt angle confirmation mechanism 4 is installed at the deflection position of the roller conveying mechanism 2. The tilt angle confirmation mechanism 4 includes an arc-shaped electric slide rail 41 fixedly installed on the outer wall of the support frame 25. The front end of the slider in the arc-shaped electric slide rail 41 is fixedly connected with a mounting plate 42. The end of the mounting plate 42 close to the rotating shaft 26 is fixedly connected with a confirmation switch 43. The shaft wall of the rotating shaft 26 is fixedly connected with an extension rod 44. The end of the extension rod 44 away from the rotating shaft 26 is fixedly connected with a pressing round head 45. The outer wall of the support frame 25 is also fixedly installed with an angle scale plate 46 located on the outside of the arc-shaped electric slide rail 41. The end of the mounting plate 42 away from the rotating shaft 26 is fixedly connected with a pointer 47. Based on the specific changes in the angle when the conveyor angle is adjusted, it can be quickly confirmed whether the tilt is in place.

[0042] The weighing feedback adjustment mechanism 5 is fixedly mounted on the upper end of the base 1. The weighing feedback adjustment mechanism 5 includes an adjustment shell 51 fixedly mounted on the upper end of the base 1. The inner wall of the adjustment shell 51 is rotatably connected with an adjustment screw 52. The outer wall of the adjustment shell 51 is fixedly mounted with an adjustment motor 53 for driving the adjustment screw 52 to rotate. The rod wall of the adjustment screw 52 is threadedly sleeved with an adjustment seat 54. The inner wall of the adjustment shell 51 is fixedly mounted with a feedback resistor rod 55 arranged parallel to the adjustment screw 52. The lower end of the adjustment seat 54 is fixedly connected with a feedback conductive contact piece 56 that is in electrical contact with the feedback resistor rod 55. A weight scale plate 57 is also fixedly mounted on the upper end of the adjustment shell 51. An identification rod 58 is fixedly mounted on the upper end of the adjustment seat 54. A strip opening for the upper end of the identification rod 58 to extend through is opened on the upper end of the adjustment shell 51, which can convert the weight of the item to be transported into an adjustment signal to assist the entire transportation work to better automatically adjust and operate.

[0043] The conveying power adjustment mechanism 6 is fixedly mounted on the upper end of the base 1 and electrically connected to the roller conveying mechanism 2. The conveying power adjustment mechanism 6 includes an adjustment shell 61 fixedly mounted on the upper end of the base 1. The inner wall of the adjustment shell 61 is rotatably connected to a transmission screw 62. A servo motor 63 for driving the transmission screw 62 to rotate is fixedly mounted on the outer wall of the adjustment shell 61. A transmission seat 64 is threadedly sleeved on the rod wall of the transmission screw 62. A power resistor rod 65 arranged parallel to the transmission screw 62 is fixedly mounted on the inner wall of the adjustment shell 61. A sleeve hole sleeved on the side wall of the transmission seat 64 is opened, and a power conductive contact piece 66 electrically contacting the power resistor rod 65 is fixedly connected to the inner wall of the corresponding sleeve hole. The conveying power can be automatically adjusted to ensure that the items are transported and transmitted at a stable conveying speed.

[0044] The friction compensation starting mechanism 7 is installed on the top of the inner wall of the conveying power adjustment mechanism 6 and is electrically connected to the top extrusion friction compensation mechanism 3. The friction compensation starting mechanism 7 includes a plurality of guide slide bars 71 fixedly installed side by side on the inner wall of the upper end of the adjustment shell 61. The plurality of guide slide bars 71 are slidably sleeved with the same trigger plate 72. A trigger switch 73 is fixedly installed on the side of the trigger plate 72 close to the transmission seat 64. A plurality of squeezing springs 74 sleeved on the outside of the guide slide bar 71 are fixedly installed on the opposite side of the trigger plate 72 and the adjustment shell 61. Based on the inclination angle of the conveyed object, it is automatically triggered to confirm whether additional pressure on the top is needed to ensure stable conveying of the object and avoid the problem of excessive pressure affecting the conveying speed of the object.

[0045] The friction coefficient control mechanism 8 is installed at the bottom of the inner wall of the conveying power adjustment mechanism 6 and is electrically connected to the roller conveying mechanism 2. The friction coefficient control mechanism 8 includes a plurality of control switches 81 equidistantly fixedly installed at the bottom of the inner wall of the adjustment shell 61. The lower end of the transmission seat 64 is fixedly provided with an extrusion round head 82 corresponding to the position of the control switch 81.

[0046] The PLC controller 9 is fixedly mounted on the upper end of the base 1, and is electrically connected to the roller conveying mechanism 2, the top extrusion friction compensation mechanism 3, the tilt angle confirmation mechanism 4, the weighing feedback adjustment mechanism 5, the conveying power adjustment mechanism 6, the friction compensation starting mechanism 7 and the friction coefficient control mechanism 8 respectively.

[0047] The operating principle of the present invention is described as follows: the items to be transported are weighed, and based on the weighed weight, the adjusting motor 53 is manually controlled by the PLC controller 9 to work, and the adjusting motor 53 drives the adjusting screw 52 to rotate, and the adjusting seat 54 drives the feedback conductive contact piece 56 to slide on the feedback resistor rod 55 through the threaded sleeve effect of the adjusting screw 52 and the adjusting seat 54, until the identification rod 58 moves to the value obtained by the weighing on the corresponding weight scale plate 57, at which time the adjusting motor 53 is controlled to stop by the PLC controller 9. Specifically, the greater the weight of the item, the greater the sliding distance of the feedback conductive contact piece 56 on the feedback resistor rod 55, so that the access resistance value of the feedback resistor rod 55 is smaller;

[0048] According to the required inclination angle of conveying, the arc-shaped electric slide rail 41 drives the mounting plate 42 and the confirmation switch 43 to move until the pointer 47 at the outer end of the mounting plate 42 moves to the scale position corresponding to the angle scale plate 46. The staff then controls the electric push rod 27 to move through the PLC controller 9. The electric push rod 27 pushes the conveyor body 21 to deflect with the connection of the rotating shaft 26 of the rotating frame 24 and the supporting frame 25 as the center of the circle to adjust the conveying angle. When the conveyor body 21 deflects, the pressing round head 45 is synchronously driven to move through the rotating shaft 26 and the extension rod 44 until the pressing round head 45 presses on the confirmation switch 43, indicating that the conveying angle of the conveyor body 21 is adjusted to the right position. At this time, the PLC controller 9 controls the electric push rod 27 to stop moving and confirm the final conveying angle.

[0049] The article to be transported is placed on the conveying roller 22 of the conveyor body 21, and the linear motor 32 is controlled by the PLC controller 9 to push the pressure plate 34 and the pressure roller 35 to move toward the article until a gap of 2 cm is left between the pressure roller 35 and the article, and the double-axis motor 36 is controlled by the PLC controller 9 according to the width of the article. The double-axis motor 36 drives the rotating screw 37 to rotate, and the threaded sleeve effect of the rotating screw 37 and the moving plate 38 makes the moving plate 38 cooperate with the moving rod 39 to drive the two side limit plates 310 to move, so that the side limit plates 310 are located 5 cm on both sides of the article, which effectively limits the conveying of the article and prevents the article from being offset and falling during the conveying process;

[0050] In the process of adjusting the conveying angle, the PLC controller 9 synchronously controls the action of the servo motor 63, and the servo motor 63 drives the transmission screw 62 to rotate. Through the threaded sleeve effect of the transmission screw 62 and the transmission seat 64, the transmission seat 64 drives the power conductive contact 66 to slide on the power resistor rod 65, thereby making the access resistance of the power resistor rod 65 gradually decrease, and the power conductive contact 66 and the power resistor rod 65 are connected in series to the power supply circuit of the motor drive component 23, and the motor drive component 23 is a DC motor, thereby making the working power of the motor drive component 23 gradually increase, and the feedback conductive contact 56 and the feedback resistor rod 55 are connected in series to the power supply circuit of the servo motor 63. When the weight of the object to be conveyed is greater, the rotation speed of the servo motor 63 is faster, thereby achieving that as the inclination angle of the conveyor body 21 changes, the working power of the motor drive component 23 is increased by a greater margin, so as to better meet the conveying needs of heavy objects;

[0051] When the transmission seat 64 moves to the trigger switch 73 on the side wall of the trigger plate 72, the PLC controller 9 controls the linear motor 32 to move, so that the pressure plate 34 cooperates with the pressure roller 35 to squeeze the top of the article, thereby increasing the friction force when the article is transported, and as the conveying angle continues to increase, the linear motor 32 continues to push the pressure plate 34 downward to provide greater pressure on the top of the article to ensure the conveying stability of the article. Specifically, the heavier the weight of the article, the faster the rotation speed of the servo motor 63, and the earlier the transmission seat 64 can press and act on the trigger switch 73, that is, the conveyor body 21 produces a smaller tilt angle change to trigger the action of the top squeezing friction compensation mechanism 3. On the contrary, the smaller the weight of the article, the slower the rotation speed of the servo motor 63, so that the transmission seat 64 will press and act on the trigger switch 73 only after the conveyor body 21 has a larger angle change, so that the top squeezing friction compensation mechanism 3 is put into action. When the pressing round head 45 presses and acts on the confirmation switch 43, indicating that the conveying angle of the conveyor body 21 is adjusted to the right position, the PLC controller 9 controls the linear motor 32 to stop.

[0052] As the conveying inclination angle of the conveyor body 21 is adjusted, the transmission seat 64 will also move with the extrusion round head 82. When the extrusion round head 82 presses on the control switch 81, the PLC controller 9 controls the power supply equipment to supply power to the thrust electromagnetic plate 215 in the conveying roller 22. The thrust electromagnetic plate 215 is energized to generate the same magnetism as the thrust permanent magnet plate 214, thereby driving the force-bearing plate 212 to cooperate with the force-bearing rod 211 to push the friction protrusion 210 to overcome the elastic force of the return spring 213 and move outward, thereby propping up the anti-slip rubber pad 216 to form an anti-slip protrusion, thereby increasing the friction between the outer surface of the conveying roller 22 and the object. Specifically, the greater the conveying inclination angle of the conveyor body 21, the greater the distance that the transmission seat 64 can move, thereby enabling the extrusion round head 82 to finally press the control switch acting on the rear side. When switch 81 is turned on, the PLC controller 9 will control the power supply device to supply power to more thrust electromagnetic plates 215, so that more friction protrusions 210 extend out, thereby increasing the friction coefficient of the conveying roller 22. The heavier the weight of the article, the faster the moving speed of the transmission seat 64, so that the extrusion round head 82 acts on the control switch 81 on the rear side, and the faster the friction coefficient of the outer surface of the conveying roller 22 changes. When the transmission seat 64 presses on the trigger switch 73 to start the top extrusion friction compensation mechanism 3, the extrusion round head 82 also presses on the control switch 81 on the rear side, so that the friction coefficient of the conveying roller 22 reaches the maximum. Then, after the friction coefficient of the conveying roller 22 can no longer change, the top extrusion friction compensation mechanism 3 provides top pressure compensation for the conveying of the article, thereby ensuring stable conveying of the article.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A roller conveyor, comprising a base (1), characterized in that: Also includes: A roller conveying mechanism (2) is fixedly mounted on the upper end of the base (1); A top extrusion friction compensation mechanism (3) is fixedly mounted on the upper end of the roller conveying mechanism (2); A tilt angle confirmation mechanism (4) is arranged at a deflection position of the roller conveying mechanism (2); A weighing feedback adjustment mechanism (5) is fixedly mounted on the upper end of the base (1); A conveying power adjustment mechanism (6) is fixedly mounted on the upper end of the base (1) and is electrically connected to the roller conveying mechanism (2); A friction compensation starting mechanism (7) is mounted on the top of the inner wall of the transmission power adjustment mechanism (6) and is electrically connected to the top extrusion friction compensation mechanism (3); A friction coefficient control mechanism (8) is mounted on the bottom of the inner wall of the conveying power adjustment mechanism (6) and is electrically connected to the roller conveying mechanism (2); A PLC controller (9) is fixedly mounted on the upper end of the base (1) and is electrically connected to the roller conveying mechanism (2), the top extrusion friction compensation mechanism (3), the tilt angle confirmation mechanism (4), the weighing feedback adjustment mechanism (5), the conveying power adjustment mechanism (6), the friction compensation starting mechanism (7) and the friction coefficient control mechanism (8); The roller conveying mechanism (2) comprises a conveyor body (21), a plurality of conveyor rollers (22) are rotatably mounted in the conveyor body (21), a motor drive assembly (23) for driving the conveyor rollers (22) to rotate is fixedly mounted outside the conveyor body (21), a rotating frame (24) is fixedly mounted on the lower side of one end of the conveyor body (21), a support frame (25) arranged corresponding to the position of the rotating frame (24) is fixedly mounted on the upper end of the base (1), the support frame (25) and the rotating frame (24) are rotatably connected via a rotating shaft (26), and a plurality of electric push rods (27) arranged in parallel are rotatably connected to the lower side of one end of the conveyor body (21) away from the rotating frame (24) and the upper end of the base (1); The top extrusion friction compensation mechanism (3) comprises an L-shaped vertical plate (31) fixedly mounted on the rear side of the conveyor body (21); the horizontal portion of the L-shaped vertical plate (31) is symmetrically fixedly sleeved with two linear motors (32); the lower movable ends of the two linear motors (32) are fixedly connected to the same fixed cover (33); a pressing plate (34) is fixedly mounted on the lower end of the fixed cover (33); the lower end of the pressing plate (34) is rotatably connected to a plurality of pressure rollers (35) arranged side by side; a double-axis motor (36) is fixedly mounted on the top of the inner wall of the fixed cover (33); Both output ends of the dual-axis motor (36) are fixedly connected to a rotating screw (37); one end of the rotating screw (37) away from the dual-axis motor (36) is rotatably connected to the inner wall of the fixed cover (33); a movable plate (38) is threadedly sleeved on the rod wall of the rotating screw (37); a plurality of U-shaped movable rods (39) are fixedly connected to the side wall at the lower end of the movable plate (38); the lower ends of the plurality of movable rods (39) are fixedly connected to the same side limit plate (310); and a plurality of through holes for the movable rods (39) to extend through the side wall of the fixed cover (33); The tilt angle confirmation mechanism (4) comprises an arc-shaped electric slide rail (41) fixedly mounted on the outer wall of the support frame (25); a mounting plate (42) is fixedly connected to the front end of the slider in the arc-shaped electric slide rail (41); a confirmation switch (43) is fixedly connected to one end of the mounting plate (42) close to the rotating shaft (26); an extension rod (44) is fixedly connected to the shaft wall of the rotating shaft (26); a pressing round head (45) is fixedly connected to one end of the extension rod (44) away from the rotating shaft (26); an angle scale plate (46) located outside the arc-shaped electric slide rail (41) is also fixedly mounted on the outer wall of the support frame (25); and a pointer (47) is fixedly connected to one end of the mounting plate (42) away from the rotating shaft (26); The weighing feedback adjustment mechanism (5) comprises an adjustment shell (51) fixedly mounted on the upper end of the base (1); an adjustment screw (52) is rotatably connected to the inner wall of the adjustment shell (51); an adjustment motor (53) for driving the adjustment screw (52) to rotate is fixedly mounted on the outer wall of the adjustment shell (51); an adjustment seat (54) is threadedly sleeved on the rod wall of the adjustment screw (52); a feedback resistor rod (55) arranged parallel to the adjustment screw (52) is fixedly mounted on the inner wall of the adjustment shell (51); a feedback conductive contact piece (56) in electrical contact with the feedback resistor rod (55) is fixedly connected to the lower end of the adjustment seat (54); a weight scale plate (57) is fixedly mounted on the upper end of the adjustment shell (51); an identification rod (58) is fixedly mounted on the upper end of the adjustment seat (54); and a strip opening is provided at the upper end of the adjustment shell (51) for the upper end of the identification rod (58) to extend through. The transmission power adjustment mechanism (6) comprises an adjustment shell (61) fixedly mounted on the upper end of the base (1); the inner wall of the adjustment shell (61) is rotatably connected to a transmission screw (62); the outer wall of the adjustment shell (61) is fixedly mounted with a servo motor (63) for driving the transmission screw (62) to rotate; the rod wall of the transmission screw (62) is threadedly sleeved with a transmission seat (64); the inner wall of the adjustment shell (61) is fixedly mounted with a power resistor rod (65) arranged parallel to the transmission screw (62); the side wall of the transmission seat (64) is provided with a sleeve hole sleeved outside the power resistor rod (65); and the inner wall of the corresponding sleeve hole is fixedly connected with a power conductive contact piece (66) in electrical contact with the power resistor rod (65); The friction compensation starting mechanism (7) comprises a plurality of guide slide bars (71) fixedly mounted side by side on the inner wall of the upper end of the adjustment housing (61); a trigger plate (72) is slidably sleeved outside the plurality of guide slide bars (71); a trigger switch (73) is fixedly mounted on one side of the trigger plate (72) close to the transmission seat (64); and a plurality of squeezing springs (74) sleeved outside the guide slide bars (71) are fixedly mounted on the opposite side of the trigger plate (72) and the adjustment housing (61); The friction coefficient control mechanism (8) comprises a plurality of control switches (81) equidistantly fixedly mounted on the bottom of the inner wall of the adjustment housing (61); a squeezing round head (82) corresponding to the position of the control switch (81) is fixedly mounted on the lower end of the transmission seat (64); An insulating column (28) is fixedly installed inside the conveying roller (22), and a plurality of embedding grooves (29) are evenly opened on the outer wall of the conveying roller (22). A friction protrusion (210) is movably arranged in the embedding groove (29), and one end of the friction protrusion (210) located in the embedding groove (29) is fixedly connected to a force-bearing rod (211), and one end of a plurality of force-bearing rods (211) located in the same row and away from the friction protrusion (210) all penetrate into the conveying roller (22) and are fixedly connected to the same A force-bearing plate (212), a return spring (213) sleeved outside the force-bearing rod (211) is fixedly connected between the friction protrusion (210) and the embedding groove (29), a thrust permanent magnet plate (214) is fixedly connected to the side of the force-bearing plate (212) away from the force-bearing rod (211), a plurality of thrust electromagnetic plates (215) arranged opposite to the thrust permanent magnet plates (214) are fixedly mounted on the outer wall of the insulating column (28), and the outer wall of the conveying roller (22) is coated with a layer of anti-slip rubber pad (216).

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