Automatic discharging device for conveying belt

Abstract

The invention belongs to the technical field of conveying belt equipment, and particularly relates to an automatic discharging device for a conveying belt, which comprises a main conveying belt and a discharging conveying belt, the main conveying belt is used for conveying accessories, and a discharging conveying belt is arranged below the tail of the main conveying belt. A ball joint supporting mechanism is arranged below the right end of the discharging conveying belt, the tail of the left end of the discharging conveying belt is connected with a driving sliding mechanism, a lifting adjusting mechanism is arranged in the driving sliding mechanism, and the lifting adjusting mechanism is used for conducting lifting adjustment on the tail of the left end of the discharging conveying belt, so that the discharging conveying belt is in an inclined state to conduct conveying and discharging. Bagged cement continuously conveyed on the unloading conveying belt can be conveniently unloaded to a plurality of collecting points designed circumferentially, the unloading speed of the unloading conveying belt on the bagged cement can be increased, and meanwhile the situation that due to the fact that the distance between the tail of the unloading conveying belt and the collecting points is large, the bagged cement is unloaded is avoided. And the phenomenon that the bagged cement is impacted and damaged when falling into a collecting point is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of conveyor belt equipment, and in particular relates to an automatic unloading device for a conveyor belt. Background Art

[0002] Concrete is an artificial stone material that is mixed in a certain proportion with cement, water, sand and gravel, as well as admixtures and additives added as needed, and is evenly stirred, compacted into shape, and cured and hardened.

[0003] However, most of the existing conveyor belts are set up in a straight line, and the tail of the conveyor belt cannot be swung and adjusted. Therefore, when unloading bagged cement used for concrete, the conveyor belt needs to be stopped continuously to facilitate the staff to stack and carry the bagged cement after unloading. The tail of the conveyor belt cannot be adjusted to the next point for unloading and collection. Moreover, if the height of the tail of the conveyor belt is too high from the unloading ground, the bagged cement will easily be damaged by impact when falling to the ground, which will affect the safe, stable and automatic unloading of the bagged cement by the conveyor belt. Summary of the invention

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is an automatic conveyor belt unloading device, comprising a main conveyor belt and a unloading conveyor belt;

[0006] The main conveyor belt is used for conveying accessories, and a discharging conveyor belt with a slidable tail is provided below the tail of the main conveyor belt;

[0007] A ball joint support mechanism is arranged below the right end portion of the unloading conveyor belt, and a driving sliding mechanism is connected to the left end tail portion of the unloading conveyor belt. A lifting and adjusting mechanism is arranged inside the driving sliding mechanism. The lifting and adjusting mechanism is used to lift and adjust the left end tail portion of the unloading conveyor belt so that the unloading conveyor belt is in an inclined state for conveying and unloading.

[0008] Furthermore, the driving sliding mechanism includes an arc-shaped bottom plate, an arc-shaped rack plate, a driving gear, a gear shaft, a support plate, a synchronous pulley assembly and an arc-shaped guide bar. The arc-shaped bottom plate is fixedly installed on the ground below the left end tail of the unloading conveyor belt, and an arc-shaped rack plate is installed on the upper surface of the arc-shaped bottom plate. The teeth of the arc-shaped rack plate are opened inward, and the driving gear is meshed on the inner teeth of the arc-shaped rack plate, and the upper end surface of the driving gear is rotatably connected to the upper support plate through the cooperation of the gear shaft and the bearing. The support plate extends horizontally to the left to the outside of the left side of the arc-shaped rack plate, and a servo motor is fixed on the upper surface of the support plate, and the servo motor is driven by the gear shaft and the bearing. The synchronous pulley assembly is drivingly connected to the gear shaft extending upward, and the upper surface of the arc-shaped bottom plate is provided with arc-shaped guide grooves on both sides of the arc-shaped rack plate, and the lower surface of the left end of the support plate is vertically connected with an arc-shaped guide bar, and the arc-shaped guide bar is slidably inserted into the arc-shaped guide groove provided on the outside, and the bottom end of the gear shaft extends downward into the inner arc-shaped guide groove, and it rolls in contact with the groove wall of the arc-shaped guide groove through the bearing, and a disengagement assembly for pulling the arc-shaped rack plate and the driving gear out of engagement is provided on the arc-shaped bottom plate, and a lifting and lowering adjustment mechanism is provided above the support plate for supporting and lifting the tail of the unloading conveyor belt.

[0009] Furthermore, the lifting and adjusting mechanism includes an arc-shaped support plate, a support shaft tube, a support screw, a screw nut, a first square block, a hinge rod, a key block and a push cylinder. An arc-shaped support plate is installed above the support plate, and the arc-shaped support plate is rotatably connected to the gear shaft through a bearing. The arc-shaped support plate, the arc-shaped bottom plate and the arc-shaped rack plate are designed to be concentric. The two ends of the arc-shaped support plate are vertically rotatably installed with a support shaft tube with a bottom seal through a bearing, and the axes of the two support shaft tubes and the gear shaft are located on the same circumference. Support screws are inserted on the two support shaft tubes, and each support screw is sleeved with a first square block through a screw nut. Both sides of the unloading conveyor belt The outer side surfaces of the vertical plates are symmetrically fixed with hinged rods, and one group of symmetrical hinged rods is hinged to the side surfaces of the first square block through bearings. A plurality of vertical slots are provided in a circular array on the inner tube wall of the support shaft tube, and the plurality of vertical slots are symmetrically provided. The outer ring surface of the bottom end of the support screw rod is symmetrically provided with connecting slots, and the vertical height of the connecting slots is greater than the vertical height of the vertical slots. A key block is slidably inserted in the connecting slot, and a push cylinder is vertically fixed to the top of the connecting slot, the piston rod of the push cylinder is connected to the top end of the key block, and the vertical length of the key block is greater than the vertical height of the vertical slot, but less than the vertical height of the connecting slot.

[0010] Furthermore, the lifting and lowering adjustment mechanism also includes a limit ring, and the top of the support screw rod and the top outer ring surface of the connecting slot are both installed with a limit ring, and the limit ring is installed with a contact switch.

[0011] Furthermore, the ball joint support mechanism includes a ball joint base, a hinge ball, a long bottom plate, a vertical support rod and a second square block. The ball joint base is fixedly installed on the ground below the right end head of the unloading conveyor belt, and a hinge ball is rotatably arranged in the ball joint base. The top of the hinge ball is hinged to a ball groove opened on the lower surface of the long bottom plate. Vertical support rods are vertically fixed to both ends of the long bottom plate, and a second square block is installed on the top of the vertical support rod. The symmetrical second square block is hinged to another group of symmetrical hinge rods on the two side vertical plates through bearings.

[0012] Furthermore, the driving sliding mechanism also includes a guide gear and a rotating shaft rod, the inner side surface of the arc-shaped rack plate is also meshed with at least a guide gear, and two guide gears are symmetrically arranged on both sides of the driving gear, the two guide gears are connected to the arc-shaped support plate through the coordinated rotation of the rotating shaft rod and the bearing, and the bottom end of the rotating shaft rod is also in rolling friction contact with the inner arc-shaped guide groove through the bearing.

[0013] Furthermore, the top of the rotating shaft rod is aligned with the bottom end of the supporting shaft tube, the top of the rotating shaft rod is insulated with an electromagnetic suction block, the bottom end of the supporting shaft tube is insulated with an adsorption block, and the electromagnetic suction block is in contact with the adsorption block.

[0014] The present invention has the following beneficial effects:

[0015] The lifting and adjusting mechanism is controlled to work by arranging a driving sliding mechanism and a lifting and adjusting mechanism under the tail of the unloading conveyor belt to cooperate with each other, and the driving sliding mechanism is controlled to work, and the ball-jointed supporting mechanism under the head of the unloading conveyor belt is used as the center of the rotation point, so that the tail of the unloading conveyor belt slides circumferentially to the point where unloading is required. At this time, the lifting and adjusting mechanism is controlled to work as needed, so that the tail of the unloading conveyor belt will slide downward and lower to the collection point of the accessories to be collected, so that the entire unloading conveyor belt can be in an inclined state, thereby facilitating the unloading of the bagged cement continuously transported on the unloading conveyor belt to multiple collection points designed on the circumference, which can not only improve the unloading speed of the unloading conveyor belt for bagged cement, but also facilitate the operator to carry and stack. At the same time, because the tail of the unloading conveyor belt is in an inclined state close to the collection point, the bagged cement will not be hit and damaged when falling into the collection point due to the high height of the tail of the unloading conveyor belt from the collection point.

[0016] 2. The present invention sets a disengagement assembly on the arc bottom plate, and a plurality of guide plugs connected to the lower surface of the arc rack plate will slide toward the outer arc guide groove. At this time, a certain guide plug will be slid into the plug-in groove to limit and fix the arc guide bar, which can effectively prevent the unloading conveyor belt from circumferential slipping when the tail of the unloading conveyor belt is raised and lowered, thereby affecting the safe and stable height adjustment of the unloading conveyor belt.

[0017] 3. The multiple limit guide grooves of the present invention are arranged in a circular array, so they can limit the radially sliding arc rack plate, so that the arc rack plate can accurately and safely mesh with the driving gear for transmission. At the same time, multiple guide blocks are vertically inserted into the limit guide grooves, so they can also limit the axial rotation of the arc rack plate, preventing the arc rack plate from swinging when the driving gear meshes and rotates, which will affect the circular swing adjustment of the tail of the unloading conveyor belt.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure disclosed in the present invention;

[0021] Figure 2 It is a diagram showing the coordination state between the unloading conveyor belt and various mechanisms disclosed in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the driving sliding mechanism and the lifting and lowering adjustment mechanism disclosed in the present invention;

[0023] Figure 4 is a cross-sectional view of the arc-shaped bottom plate disclosed in the present invention;

[0024] Figure 5 This is a diagram showing the matching state of the support screw rod and the support shaft tube disclosed in the present invention;

[0025] Figure 6 It is a structural schematic diagram of the ball joint support mechanism disclosed in the present invention;

[0026] Figure 7 It is a cross-sectional view of the support shaft tube disclosed in the present invention.

[0027] In the figure: 1, main conveyor belt; 2, unloading conveyor belt; 3, driving sliding mechanism; 31, arc bottom plate; 311, arc guide groove; 312, limit guide groove; 32, arc rack plate; 33, driving gear; 34, gear shaft; 35, support plate; 36, synchronous pulley assembly; 37, arc guide bar; 371, plug-in groove; 38, guide gear; 39, rotating shaft rod; 4, disengagement assembly; 41, fixing block; 42, pulling cylinder; 43, guide plug block; 5. Lifting adjustment mechanism; 51. Arc support plate; 52. Support shaft tube; 521. Vertical slot; 53. Support screw rod; 531. Connecting slot; 54. Screw nut; 55. First square block; 56. Articulated rod; 57. Key block; 58. Push cylinder; 59. Limiting ring; 6. Ball joint support mechanism; 61. Ball joint base; 62. Articulated ball; 63. Long bottom plate; 64. Vertical support rod; 65. Second square block; 7. Electromagnetic suction block; 8. Adsorption block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 6 As shown, the present invention is an automatic conveyor belt unloading device, comprising a main conveyor belt 1 and a unloading conveyor belt 2;

[0032] The main conveyor belt 1 is used for conveying accessories, and a discharging conveyor belt 2 with a slidable tail is provided below the tail of the main conveyor belt 1;

[0033] A ball joint support mechanism 6 is provided below the right end of the discharge conveyor belt 2, and a driving sliding mechanism 3 is connected to the left end of the discharge conveyor belt 2. A lifting and adjusting mechanism 5 is provided inside the driving sliding mechanism 3. The lifting and adjusting mechanism 5 is used to lift and adjust the left end of the discharge conveyor belt 2 so that the discharge conveyor belt 2 is in an inclined state for conveying and discharging;

[0034] Specifically, the present invention sets a driving sliding mechanism 3 and a lifting and adjusting mechanism 5 under the tail of the discharge conveyor belt 2 to cooperate with each other. The main conveyor belt 1 will transport the processed bagged cement to the discharge conveyor belt 2, and the discharge conveyor belt 2 can adopt a conveyor belt with convex points or patterns. When it is necessary to drive the tail of the discharge conveyor belt 2 to perform a similar circular sliding so that the tail is moved to different points for conveying and unloading, the driving sliding mechanism 3 can be controlled to work at this time, with the ball-jointed support mechanism 6 under the head of the discharge conveyor belt 2 as the center of the rotation point, so that the tail of the discharge conveyor belt 2 slides in a circle to the point where unloading is required, and at this time, the ball-jointed support mechanism 6 will rotationally support the head of the discharge conveyor belt 2. When the tail of the discharge conveyor belt 2 slides to the point to be unloaded, At this time, the lifting and adjusting mechanism 5 is controlled to work as needed, so that the tail of the discharge conveyor belt 2 will slide downward and lower to the collection point of the accessories to be collected, so that the entire discharge conveyor belt 2 can be in an inclined state, thereby facilitating the discharge of the bagged cement continuously transported on the discharge conveyor belt 2 to multiple collection points designed in a circular manner, which can not only improve the speed of the discharge conveyor belt 2 to discharge the bagged cement, but also because the tail of the discharge conveyor belt 2 is in an inclined state close to the collection point, the bagged cement will not be hit and damaged when falling into the collection point due to the high height of the tail of the discharge conveyor belt 2 from the collection point; and the cooperation between the main conveyor belt 1 and the discharge conveyor belt 2 will not interfere with the circumferential sliding and tilt adjustment of the discharge conveyor belt 2.

[0035] In the first embodiment of the present invention, the driving sliding mechanism 3 includes an arc-shaped bottom plate 31, an arc-shaped rack plate 32, a driving gear 33, a gear shaft 34, a support plate 35, a synchronous pulley assembly 36 and an arc-shaped guide bar 37. The arc-shaped bottom plate 31 is fixedly installed on the ground below the left end of the unloading conveyor belt 2, and an arc-shaped rack plate 32 is installed on the upper surface of the arc-shaped bottom plate 31. The teeth of the arc-shaped rack plate 32 are opened inward, and the driving gear 33 is meshed on the inner teeth of the arc-shaped rack plate 32. The upper end surface of the driving gear 33 is rotatably connected to the upper support plate 35 through the cooperation of the gear shaft 34 and the bearing. The support plate 35 extends horizontally to the left to the outside of the left side of the arc-shaped rack plate 32. A servo motor is fixed on the upper surface of the support plate 35, and the servo The motor is connected to the gear shaft 34 extending upward through the synchronous pulley assembly 36. The upper surface of the arc bottom plate 31 is provided with arc guide grooves 311 on both sides of the arc rack plate 32. The lower surface of the left end of the support plate 35 is vertically connected with an arc guide bar 37. The arc guide bar 37 is slidably inserted into the arc guide groove 311 provided on the outside. The bottom end of the gear shaft 34 extends downward into the inner arc guide groove 311, and it rolls with the groove wall of the arc guide groove 311 through the bearing. A disengagement assembly 4 for pulling the arc rack plate 32 and the driving gear 33 out of engagement is provided on the arc bottom plate 31. A lifting and lowering adjustment mechanism 5 is provided above the support plate 35 for supporting and lifting the tail of the unloading conveyor belt 2.

[0036] Specifically, when the tail position of the unloading conveyor belt 2 needs to be adjusted, the servo motor on the support plate 35 is controlled to work, so that the drive gear 33 below the support plate 35 is driven to rotate through the synchronous pulley assembly 36 and the gear shaft 34. Since the drive gear 33 is meshed with the teeth on the inner side of the arc-shaped rack plate 32, and the arc-shaped rack plate 32 is in a fixed state at this time, the drive gear 33 will slide along the arc line of the arc-shaped rack plate 32 when rotating, and then the support plate 35 and the lifting adjustment mechanism will be adjusted. The mechanism 5 drives the tail of the unloading conveyor belt 2 to slide and swing along the arc line of the arc-shaped rack plate 32 to the next position to be unloaded for unloading processing. At this time, the ball-jointed support mechanism 6 under the head of the unloading conveyor belt 2 will support it in rotation. When the tail of the unloading conveyor belt 2 after swinging is lowered so that the whole is in an inclined state, it is necessary to control the disengagement assembly 4 to work so that it drives the arc-shaped rack plate 32 to slide toward the side direction of the arc-shaped bottom plate 31, thereby disengaging the arc-shaped rack plate 32 from the driving The meshing contact of the gear 33 and the continued operation of the servo motor will drive the lifting and adjusting mechanism 5 to work through another set of synchronous pulley assemblies 36, so that the height of the tail of the unloading conveyor belt 2 can be adjusted so that the tail can be close to the collection point for unloading processing, and the arc-shaped guide bar 37 at the bottom of the support plate 35 slides in the arc-shaped guide groove 311, which can not only play a role in vertical support for the support plate 35, but also play a role in guiding the support plate 35 to slide, preventing the driving gear 33 from sliding on the arc-shaped rack. When the plate 32 meshes and slides, the support plate 35 becomes skewed or misplaced, which in turn affects the support plate 35's ability to stably and safely drive the tail of the unloading conveyor belt 2 to perform circular swing adjustment. The bottom end of the gear shaft 34 slides in the arc guide groove 311 through the bearing, which can synchronously play a guiding and limiting role for the driving gear 33, preventing the driving gear 33 from radially offset or skewed when meshing and transmitting with the arc rack plate 32, thereby further affecting the circumferential swing adjustment of the tail of the unloading conveyor belt 2.

[0037] In the first embodiment of the present invention, the disengagement assembly 4 includes a fixed block 41, a pulling cylinder 42 and a guide plug block 43. The outer sides of both ends of the upper surface of the arc-shaped bottom plate 31 are fixed with fixed blocks 41, and the pulling cylinder 42 is horizontally fixed on the fixed block 41. The piston rod end face of the pulling cylinder 42 is connected to the outer side face of the arc-shaped rack plate 32. A plurality of limiting guide grooves 312 are provided in a circumferential array on the upper surface of the arc-shaped bottom plate 31, and a guide plug block 43 is slidably inserted in the limiting guide groove 312. The upper surfaces of the plurality of guide plug blocks 43 are connected to the lower surface of the arc-shaped rack plate 32. The outer ends of the plurality of limiting guide grooves 312 are connected to the arc-shaped guide grooves 311 provided on the outer side. The inner side face of the arc-shaped guide bar 37 is provided with an inserting groove 371 which is aligned with the limiting guide groove 312 and has the same size as that of the limiting guide groove 312.

[0038] Specifically, when the arc-shaped rack plate 32 needs to be disengaged from the meshing with the driving gear 33, the piston rod of the pulling cylinder 42 on the control fixing block 41 is retracted, so that it drives the arc-shaped rack plate 32 to slide toward the arc-shaped guide groove 311 opened on the outside of the arc-shaped bottom plate 31, and at this time, the multiple guide plugs 43 connected to the lower surface of the arc-shaped rack plate 32 will slide toward the outer arc-shaped guide groove 311, and because the plug-in groove 371 opened on the inner side of the arc-shaped guide bar 37 is slidably aligned with the multiple limit guide grooves 312, a certain guide plug 43 will be slidably inserted into the plug-in groove 371 to limit and fix the arc-shaped guide bar 37, which can effectively prevent the unloading conveyor belt 2 from simultaneously slipping in the circumference when the tail of the unloading conveyor belt 2 is lifted and lowered, thereby affecting the safe and stable height adjustment of the unloading conveyor belt 2; when the arc-shaped rack plate 32 needs to be disengaged from the meshing with the driving gear 33, the piston rod of the pulling cylinder 42 on the control fixing block 41 is retracted, so that the unloading conveyor belt 2 can be simultaneously slipped in the circumference, thereby affecting the safe and stable height adjustment of the unloading conveyor belt 2; When the strip plate 32 is meshed with the driving gear 33, the piston rod of the cylinder 42 is extended, so that it pushes the arc-shaped rack plate 32 to slide toward the driving gear 33 to mesh with it for transmission. At this time, the guide plug 43 will slide in the limiting guide groove 312 and will disengage from the plug-in groove 371. The multiple limiting guide grooves 312 are arranged in a circular array, so they can limit the radial sliding arc-shaped rack plate 32, so that the arc-shaped rack plate 32 can be accurately and safely meshed with the driving gear 33 for transmission. At the same time, the multiple guide plugs 43 are vertically inserted into the limiting guide groove 312, so they can also play a role in axially limiting the rotation of the arc-shaped rack plate 32, preventing the arc-shaped rack plate 32 from swinging when the driving gear 33 is meshed and rotated, thereby affecting the circumferential swing adjustment of the tail of the unloading conveyor belt 2.

[0039] In the first embodiment of the present invention, the lifting and adjusting mechanism 5 includes an arc-shaped support plate 51, a support shaft tube 52, a support screw 53, a screw nut 54, a first square block 55, a hinge rod 56, a key block 57 and a push cylinder 58. The arc-shaped support plate 51 is installed above the support plate 35, and the arc-shaped support plate 51 is rotatably connected with the gear shaft 34 through a bearing. The arc-shaped support plate 51, the arc-shaped bottom plate 31 and the arc-shaped rack plate 32 are designed to be concentric. The two ends of the arc-shaped support plate 51 are vertically rotatably installed with a bottom-sealed support shaft tube 52 through a bearing, and the axes of the two support shaft tubes 52 and the gear shaft 34 are located on the same circumference. The two support shaft tubes 52 are both plugged with support screws 53, and each support screw 53 is sleeved with a first square block 55 through a screw nut 54. The outer side surfaces of the vertical plates on both sides of the belt 2 are symmetrically fixed with hinge rods 56, and one group of symmetrical hinge rods 56 is hinged to the side surface of the first square block 55 through a bearing. A plurality of vertical slots 521 are provided in a circular array on the inner tube wall of the support shaft tube 52, and the plurality of vertical slots 521 are symmetrically provided. The outer ring surface of the bottom end of the support screw rod 53 is symmetrically provided with connecting slots 531, and the vertical height of the connecting slots 531 is greater than the vertical height of the vertical slots 521. A key block 57 is slidably inserted in the connecting slot 531, and a push cylinder 58 is vertically fixed to the top of the connecting slot 531. The piston rod of the push cylinder 58 is connected to the top end of the key block 57. The vertical length of the key block 57 is greater than the vertical height of the vertical slot 521, but less than the vertical height of the connecting slot 531.

[0040] Specifically, when it is necessary to adjust the height of the tail of the unloading conveyor belt 2 so that it is tilted downward as a whole, the arc-shaped rack plate 32 will be disengaged from the driving gear 33, and the support plate 35 will be fixed to the arc-shaped bottom plate 31 through the mutual plug-in cooperation of the arc-shaped guide bar 37 and the guide plug block 43, and then the piston rod of the push cylinder 58 in the connecting slot 531 is controlled to extend so that it pushes the key block 57 to be inserted into the aligned vertical slot 521, so that the support shaft tube 52 and the support screw rod 53 can be connected and transmitted to each other through the key block 57, and then the continued operation of the servo motor will pass through the synchronous belt above the arc-shaped support plate 51 The wheel assembly 36 drives the symmetrical support shaft tube 52 to rotate synchronously, and then the symmetrical support screw rod 53 drives the tail of the discharge conveyor belt 2 to slide downward through the screw rod nut 54, the first square block 55 and the hinge rod 56. Since the vertical plates on both sides of the discharge conveyor belt 2 are hinged and rotated with the first square block 55 through the hinge rod 56, the tail of the discharge conveyor belt 2 swinging downward will not interfere with the first square block 55 that slides down normally, so that it is convenient to adjust the tail of the discharge conveyor belt 2 downward to the collection point, so that the discharge conveyor belt 2 tilted downward can safely and accurately transport the bagged cement to the collection point for discharge and collection;

[0041] When the tail of the unloading conveyor belt 2 needs to swing in a circle to the next point, the inclined unloading conveyor belt 2 can be controlled to rise to a horizontal height as needed, and then the piston rod of the push cylinder 58 can be controlled to be retracted, so that it drives the key block 57 to slide upward and disengage from the vertical slot 521. At this time, a part of the key block 57 will continue to be hidden in the connecting slot 531, thereby disconnecting the support screw 53 from the support shaft tube 52, and then the arc-shaped rack plate 32 is controlled to slide and engage with the drive gear 33, the guide plug block 43 will disengage from the arc-shaped guide bar 37, and the servo motor on the support plate 35 will continue to work, which will drive the drive gear 33 to rotate, and at this time the support shaft tube 52 will rotate on the arc-shaped support plate 51, and will not interfere with the support screw 53, so that the support plate 35 that is convenient for circular sliding will drive the tail of the unloading conveyor belt 2 to slide in a circle through the arc-shaped plate and the support screw 53.

[0042] In the first embodiment of the present invention, the lifting and adjusting mechanism 5 also includes a limit ring 59, and the top outer ring surface of the support screw rod 53 and the top outer ring surface of the connecting slot 531 are both installed with the limit ring 59, and the limit ring 59 is installed with a contact switch; specifically, the design of the limit ring 59 and the contact switch is convenient for limiting the height of the first square block 55 sliding up and down on the support screw rod 53, preventing the first square block 55 from sliding to the extreme position and being unable to reset and continue to lift in the reverse direction.

[0043] In the first embodiment of the present invention, the ball joint support mechanism 6 includes a ball joint base 61, a hinge ball 62, a long bottom plate 63, a vertical support rod 64 and a second square block 65. The ball joint base 61 is fixedly installed on the ground below the right end head of the unloading conveyor belt 2, and a hinge ball 62 is rotatably arranged in the ball joint base 61. The top of the hinge ball 62 is hinged to the ball groove opened on the lower surface of the long bottom plate 63. The two ends of the long bottom plate 63 are vertically fixed with vertical support rods 64, and the top of the vertical support rod 64 is installed with a second square block 65. The symmetrical second square block 65 is hinged to another group of symmetrical hinge rods 56 of the two side vertical plates through bearings.

[0044] Specifically, when the left tail end of the unloading conveyor belt 2 slides in a circle, the right head end will cooperate through the hinge rod 56, the second hinge block, the vertical support rod 64 and the long bottom plate 63, so that the center of the long bottom plate 63 will rotate around the hinge ball 62, and the ball joint base 61 will support the rotation of the hinge ball 62, thereby making the tail end of the unloading conveyor belt 2 swing and adjust in a circle with its head as the center; and the hinge rods 56 on both sides of the head of the unloading conveyor belt 2 are hinged with the rotation of the second hinge block, so that it will not affect the normal tilt adjustment operation of the unloading conveyor belt 2.

[0045] In the first embodiment of the present invention, the driving sliding mechanism 3 further includes a guide gear 38 and a rotating shaft rod 39. The inner side surface of the arc-shaped rack plate 32 is also meshed with at least a guide gear 38, and two guide gears 38 are symmetrically arranged on both sides of the driving gear 33. The two guide gears 38 are rotatably connected to the arc-shaped support plate 51 through the cooperation of the rotating shaft rod 39 and the bearing, and the bottom end of the rotating shaft rod 39 is also in rolling friction contact with the inner arc-shaped guide groove 311 through the bearing;

[0046] Specifically, in order to further improve the stability of the circumferential sliding of the support plate 35 when the driving gear 33 and the arc-shaped rack plate 32 are meshed for transmission, the present invention also symmetrically installs a guide gear 38 on the lower surface of the arc-shaped support plate 51, and the guide gear 38 is also meshed with the arc-shaped rack plate 32, so that the symmetrical guide gear 38 can play a role of circumferential guidance for the driving gear 33. At the same time, the rotating shaft rod 39 of the guide gear 38 is inserted into the inner arc-shaped guide groove 311 through a bearing. Therefore, the two ends of the arc-shaped support plate 51 can also be gravity-supported to prevent the tail gravity of the unloading conveyor belt 2 from directly acting on the two ends of the arc-shaped support plate 51 through the support screw 53, causing the two ends of the arc-shaped support plate 51 to deform for a long time.

[0047] Embodiment 2:

[0048] See also Figure 1-Figure 7 As shown, in the second embodiment of the present invention, the top of the rotating shaft rod 39 is aligned with the bottom end of the supporting shaft tube 52, the top of the rotating shaft rod 39 is insulated with an electromagnetic suction block 7, the bottom end of the supporting shaft tube 52 is insulated with an adsorption block 8, and the electromagnetic suction block 7 is in contact with the adsorption block 8;

[0049] Specifically, when the tail of the unloading conveyor belt 2 needs to perform circular sliding, the electromagnetic suction block 7 is energized so that it has magnetic adsorption force and is adsorbed onto the adsorption block 8 of the metal material, so that the support shaft tube 52 is connected to the rotating shaft rod 39, and then when the driving gear 33 rotates, it will drive the support shaft tubes 52 on both sides to rotate through the upper synchronous pulley assembly 36. At this time, the meshing guide gear 38 will also rotate synchronously with the driving gear 33, thereby facilitating the synchronous meshing of the three gears with the arc-shaped rack plate 32, thereby realizing safe and stable circular sliding adjustment of the tail of the unloading conveyor belt 2.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A conveyor belt automatic unloading device, characterized in that: It comprises a main conveyor belt (1) and a discharge conveyor belt (2); The main conveyor belt (1) is used for conveying accessories, and a discharging conveyor belt (2) with a slidable tail is provided below the tail of the main conveyor belt (1); A ball-jointed support mechanism (6) is provided below the right end of the discharge conveyor belt (2), and a driving sliding mechanism (3) is connected to the left end of the discharge conveyor belt (2). A lifting and adjusting mechanism (5) is provided inside the driving sliding mechanism (3). The lifting and adjusting mechanism (5) is used to lift and adjust the left end of the discharge conveyor belt (2) so that the discharge conveyor belt (2) is in an inclined state for conveying and discharging.

2. The automatic conveyor belt unloading device according to claim 1, characterized in that: The driving sliding mechanism (3) comprises an arc-shaped bottom plate (31), an arc-shaped rack plate (32), a driving gear (33), a gear shaft (34), a support plate (35), a synchronous pulley assembly (36) and an arc-shaped guide bar (37). The arc-shaped bottom plate (31) is fixedly mounted on the ground below the left end of the unloading conveyor belt (2), and an arc-shaped rack plate (32) is mounted on the upper surface of the arc-shaped bottom plate (31). The teeth of the arc-shaped rack plate (32) are opened inwardly. The driving gear (33) is meshed on the inner teeth of the arc-shaped rack plate (32), and the upper end surface of the driving gear (33) is rotatably connected to the upper support plate (35) through the cooperation of the gear shaft (34) and the bearing. The support plate (35) extends horizontally to the left to the outside of the left side of the arc-shaped rack plate (32). A servo motor is fixed on the upper surface of the support plate (35), and the servo motor is driven by the gear shaft (34) and the bearing. The synchronous pulley assembly (36) is transmission-connected to the gear shaft (34) extending upward. The upper surface of the arc-shaped bottom plate (31) is provided with arc-shaped guide grooves (311) on both sides of the arc-shaped rack plate (32). The lower surface of the left end of the support plate (35) is vertically connected with an arc-shaped guide bar (37). The arc-shaped guide bar (37) is slidably inserted into the arc-shaped guide groove (311) provided on the outer side. The bottom end of the gear shaft (34) extends downward into the inner arc-shaped guide groove (311) and is in rolling contact with the groove wall of the arc-shaped guide groove (311) through a bearing. A disengagement assembly (4) for pulling the arc-shaped rack plate (32) and the driving gear (33) out of engagement is provided on the arc-shaped bottom plate (31). A lifting and lowering adjustment mechanism (5) is provided above the support plate (35) for supporting and lifting the tail of the unloading conveyor belt (2).

3. The automatic conveyor belt unloading device according to claim 1, characterized in that: The lifting and lowering adjustment mechanism (5) comprises an arc-shaped support plate (51), a support shaft tube (52), a support screw rod (53), a screw rod nut (54), a first square block (55), a hinge rod (56), a key block (57) and a push cylinder (58). The arc-shaped support plate (51) is installed above the support plate (35), and the arc-shaped support plate (51) is rotatably connected to the gear shaft (34) through a bearing. The arc-shaped support plate (51), the arc-shaped bottom plate (31) and the arc-shaped bottom plate (31) are The three arc-shaped rack plates (32) are designed to be concentric, the two ends of the arc-shaped support plate (51) are vertically rotatably mounted with bottom-sealed support shaft tubes (52) through bearings, and the axes of the two support shaft tubes (52) and the gear shaft (34) are located on the same circumference line, the two support shaft tubes (52) are plugged with support screw rods (53), and each support screw rod (53) is sleeved with a first square block (55) through a screw nut (54), and the unloading conveyor belt The outer side surfaces of the two side vertical plates of (2) are symmetrically fixed with hinge rods (56), and one group of symmetrical hinge rods (56) is hinged to the side surface of the first square block (55) through a bearing, a plurality of vertical slots (521) are arranged in a circular array on the inner tube wall of the support shaft tube (52), and the plurality of vertical slots (521) are arranged diagonally symmetrically, and the outer ring surface of the bottom end of the support screw rod (53) is symmetrically provided with connecting slots (531), and the connecting slots (53 ... The vertical height of the groove (531) is greater than the vertical height of the vertical slot (521); a key block (57) is slidably inserted in the connecting slot (531); a push cylinder (58) is vertically fixed to the top of the connecting slot (531); a piston rod of the push cylinder (58) is connected to the top end of the key block (57); and a vertical length of the key block (57) is greater than the vertical height of the vertical slot (521) but less than the vertical height of the connecting slot (531).

4. The automatic conveyor belt unloading device according to claim 3, characterized in that: The lifting and lowering adjustment mechanism (5) further comprises a limit ring (59), and the top of the support screw rod (53) and the top outer ring surface of the connecting slot (531) are both installed with the limit ring (59), and the limit ring (59) is installed with a contact switch.

5. The automatic conveyor belt unloading device according to claim 3, characterized in that: The ball-jointed support mechanism (6) comprises a ball-jointed base (61), an articulated ball (62), a strip bottom plate (63), a vertical support rod (64) and a second square block (65); the ball-jointed base (61) is fixedly mounted on the ground below the right end of the unloading conveyor belt (2); and an articulated ball (62) is rotatably arranged in the ball-jointed base (61); the top of the articulated ball (62) is articulated with a ball groove provided on the lower surface of the strip bottom plate (63); vertical support rods (64) are vertically fixed to both ends of the strip bottom plate (63); and a second square block (65) is installed on the top of the vertical support rod (64); the symmetrical second square block (65) is articulated with another group of symmetrical articulated rods (56) of the two side vertical plates through bearings.

6. The automatic conveyor belt unloading device according to claim 2, characterized in that: The driving sliding mechanism (3) further comprises a guide gear (38) and a rotating shaft rod (39); the inner side surface of the arc-shaped rack plate (32) is also meshed with at least a guide gear (38), and two guide gears (38) are symmetrically arranged on both sides of the driving gear (33); the two guide gears (38) are rotatably connected to the arc-shaped support plate (51) through the cooperation of the rotating shaft rod (39) and the bearing, and the bottom end of the rotating shaft rod (39) is also in rolling friction contact with the inner arc-shaped guide groove (311) through the bearing.

7. The automatic conveyor belt unloading device according to claim 6, characterized in that: The top of the rotating shaft rod (39) is aligned with the bottom end of the supporting shaft tube (52); the top of the rotating shaft rod (39) is insulated with an electromagnetic suction block (7); the bottom end of the supporting shaft tube (52) is insulated with an adsorption block (8); the electromagnetic suction block (7) is in contact with the adsorption block (8).

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