CN113859934B - Turnover device - Google Patents
Turnover device Download PDFInfo
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- CN113859934B CN113859934B CN202111027259.1A CN202111027259A CN113859934B CN 113859934 B CN113859934 B CN 113859934B CN 202111027259 A CN202111027259 A CN 202111027259A CN 113859934 B CN113859934 B CN 113859934B
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- turnover
- turn
- rotating wheel
- over
- spoke
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
Abstract
The application provides a turn-over device, includes: the first conveying belt is used for inputting the turnover object; the second conveying belt is arranged at intervals with the first conveying belt and is used for outputting the turnover object; turn-over mechanism, turn-over mechanism link up the output of first conveyer belt and the input of second conveyer belt, and turn-over mechanism includes: the turnover support is fixedly arranged; the rotating wheel is rotatably connected with the turnover support and used for driving the turnover object to do turnover motion, and the rotating wheel comprises a rotating sleeve and a plurality of spoke pieces which are uniformly arranged between two end faces of the rotating sleeve along the circumferential direction. According to the technical scheme, the turnover device realizes turnover of the turnover object under the driving of the rotating wheel, and has the advantages of simple principle, compact structure, modular installation, simplicity and convenience in maintenance, wide application range and difficulty in damage of objects.
Description
Technical Field
The application belongs to the technical field of coinage equipment, and particularly relates to a turn-over device.
Background
When the coin objects are processed, manufactured and inspected, operations such as laser engraving and marking, image photographing and the like are generally required to be performed on both sides of the coin objects, and therefore a device capable of turning over the coin objects is urgently needed.
The existing turnover device can realize the turnover function of coin objects, but has the problems of unstable coin conveying, uncontrolled turnover process, easy abrasion of the surface of the coin, complex integral structure, large size and the like; meanwhile, the device is mainly suitable for round objects, and the problems can be further highlighted for structural characteristics such as edges and corners contained in special-shaped objects (polygons such as hexagons and heptagons, irregular shapes and the like).
Disclosure of Invention
The present application is directed to solving or improving at least one of the technical problems of the prior art.
In view of the above, an object of the present application is to provide a turn-over device.
In order to achieve the above object, the present invention provides a turn-over apparatus, including: the first conveying belt is used for inputting the turnover object; the second conveying belt is arranged at intervals with the first conveying belt and is used for outputting the turnover objects; turn-over mechanism, turn-over mechanism link up the output of first conveyer belt and the input of second conveyer belt, and turn-over mechanism includes: the turnover support is fixedly arranged; the rotating wheel is rotatably connected with the turnover support and used for driving the turnover object to do turnover motion, and the rotating wheel comprises a rotating sleeve and a plurality of spoke pieces which are uniformly arranged between two end faces of the rotating sleeve along the circumferential direction.
According to the application, the turnover device comprises a first conveying belt, a second conveying belt and a turnover mechanism. The first conveyor belt is used for inputting the turnover objects, and the second conveyor belt is used for outputting the turnover objects. The turnover mechanism is connected with the output end of the first conveying belt and the input end of the second conveying belt and used for turning over the turnover object. The input and output directions of the turnover object are consistent, and the turnover device can be conveniently combined with other devices for use without a reversing device. Specifically, the turn-over mechanism comprises a turn-over bracket and a rotating wheel. The rotating wheel is rotatably connected with the turnover support and is used for driving the turnover object to do turnover motion. The rotating wheel comprises a rotating sleeve and a plurality of spoke pieces, the spoke pieces are evenly arranged between two end faces of the rotating sleeve along the circumferential direction, a spoke piece gap formed between two adjacent spoke pieces can be used for entering a turn-over object, the spoke piece gap has no pressure on the turn-over object, surface abrasion of the turn-over object can be reduced, and when the chord length of an external circle corresponding to the two adjacent spoke pieces is smaller than or equal to the diameter of the external circle of the turn-over object, the turn-over object can be prevented from turning over in the spoke piece gap, so that stable turn-over motion is guaranteed.
In addition, the technical scheme provided by the application can also have the following additional technical characteristics:
among the above-mentioned technical scheme, turn-over support includes plane extension board and circular arc extension board, and on the plane extension board was located to the circular arc extension board, the circular arc extension board was close to first conveyer belt department and is equipped with first opening, and the circular arc extension board is close to second conveyer belt department and is equipped with the second opening.
In the technical scheme, the turnover support comprises a plane support plate and an arc support plate, wherein the arc support plate is arranged on the plane support plate, and a rotating wheel is arranged in the arc support plate. The arc support plate is provided with a first opening close to the first conveying belt, the first opening enables the turnover object to enter the spoke gap from the first conveying belt, the arc support plate is provided with a second opening close to the second conveying belt, and the second opening enables the turnover object to transition from the spoke gap to the second conveying belt.
Among the above-mentioned technical scheme, turn-over mechanism still includes: the leading truck is located first opening part, and the leading truck is used for linking up first conveyer belt and revolves the wheel.
In this technical scheme, turn-over mechanism still includes the leading truck, and the leading truck is located first opening part, links up first conveyer belt and rotates the wheel, makes the turn-over object transition from first conveyer belt to rotating on the wheel, has increased turn-over motion's stability.
In the technical scheme, the air faucet is arranged on the guide frame and used for blowing the turning surface object.
In the technical scheme, an air nozzle is arranged above the guide frame, the air nozzle can be a cylindrical air nozzle, and when a turnover object enters the rotating wheel, the air nozzle blows air to the turnover object, so that the turnover object is prevented from colliding with the spoke pieces and flying out of a sector space corresponding to the spoke piece gap. The blowing direction and the air flow of the cylindrical air tap can be adjusted according to actual needs.
Among the above-mentioned technical scheme, turn-over mechanism still includes: the guide plate is located the second opening part, and the guide plate is used for linking up and rotates wheel and second conveyer belt.
In this technical scheme, turn-over mechanism still includes the guide plate, and the second opening part is located to the guide plate, links up and rotates wheel and second conveyer belt, makes the turn-over object from rotating the wheel and transition to the second conveyer belt on, increased the stability of turn-over motion.
In the technical scheme, a plurality of rectangular grooves are formed in the spoke piece; the guide frame is provided with a plurality of tooth sheets, the tooth sheets are matched with the rectangular grooves, and the tooth sheets are used for realizing transition of the turnover object from the first conveying belt to the rotating wheel; the guide plate is provided with a plurality of racks, the racks are matched with the rectangular grooves, and the racks are used for realizing transition of the turnover object from the rotating wheel to the second conveying belt.
In the technical scheme, a plurality of rectangular grooves are formed in the spoke piece, correspondingly, the guide frame and the guide plate are respectively provided with the tooth pieces and the racks with the same quantity, the tooth pieces are used for enabling the turnover object to be transferred from the first conveying belt to the rotating wheel, and the racks are used for enabling the turnover object to be transferred from the rotating wheel to the second conveying belt, so that stable transportation of the turnover object is guaranteed.
Among the above-mentioned technical scheme, the rotating wheel still includes the shock attenuation strip, and the root of two adjacent spokes piece is located to the shock attenuation strip.
In the technical scheme, the rotating wheel further comprises damping bars, the damping bars are arranged at the roots of the two adjacent spoke pieces, and collision and abrasion of a turnover object in the gap between the spoke pieces can be reduced in the moving process of the rotating wheel.
Among the above-mentioned technical scheme, rotate the wheel and still include a plurality of exhaust holes, a plurality of exhaust holes are located and are rotated and sheathe in to be located between two adjacent spoke pieces.
In the technical scheme, the rotating wheel further comprises a plurality of exhaust holes, a certain number of exhaust holes are formed in the root of the gap of each spoke piece of the rotating wheel along the axial direction, when the turnover object moves to be in contact with the guide plate, air can be properly blown, the collision between the turnover object and the previous spoke piece rotating by the rotating wheel where the turnover object is located is avoided, and the transition of the turnover object to the second conveying belt is accelerated.
Among the above-mentioned technical scheme, turn-over device still includes a plurality of back shafts, and the one end and the plane extension board of back shaft are kept away from the one side of circular arc extension board and are connected.
In the technical scheme, the turn-over device further comprises a plurality of supporting shafts, and one ends of the supporting shafts are connected with one surfaces, far away from the arc supporting plate, of the plane supporting plates and used for fixing the turn-over support.
Among the above-mentioned technical scheme, the rotation wheel still includes: one end of the rotating wheel shaft is rotatably connected with the plane support plate, and the rotating sleeve is sleeved on the rotating wheel shaft.
In the technical scheme, the rotating wheel further comprises a rotating wheel shaft, the rotating wheel shaft is rotatably connected with the plane support plate, the rotating sleeve is sleeved on the rotating wheel shaft, and the rotating wheel is installed on the turnover support through the rotating wheel shaft.
Among the above-mentioned technical scheme, turn-over mechanism still includes: and the side cover plate is connected with the other end of the rotating wheel shaft and is also attached to one end of the arc support plate.
In the technical scheme, the turn-over mechanism further comprises a side cover plate, the side cover plate is connected with the other end of the rotating wheel shaft and is attached to one end of the arc support plate, and the side cover plate is assembled with the turn-over support through the rotating wheel shaft.
Among the above-mentioned technical scheme, turn-over device still includes: and the driving assembly is used for driving the rotating wheel to rotate.
In the technical scheme, the turnover device further comprises a driving assembly, and the driving assembly is used for driving the rotating wheel to rotate so as to turn over the turnover object.
In the above technical solution, the driving assembly includes: the synchronous belt assembly is positioned on one side of the side cover plate, which is far away from the turn-over support, and is connected with the rotating wheel shaft, and the synchronous belt assembly comprises a synchronous belt, a synchronous belt wheel and a tension wheel; the motor is used for driving the synchronous belt component; and the encoder is connected with one end of the rotating wheel shaft.
In this solution, the drive assembly comprises a timing belt assembly, a motor and an encoder. The synchronous belt component is positioned on one side of the side cover plate, which is far away from the turn-over support, the rotating wheel is driven by the motor to move through the synchronous belt, and the encoder is installed at one end of the rotating wheel shaft and used for acquiring the rotating angle of the turning object, which corresponds to the upper surface and the lower surface of the spoke piece gap, when the turning object enters the turn-over device.
Among the above-mentioned technical scheme, turn-over device still includes: the protective cover shell is connected with the side cover plate and surrounds an accommodating cavity with the side cover plate, and the synchronous belt, the synchronous belt pulley and the tensioning wheel are located in the accommodating cavity.
In this technical scheme, turn-over device still includes the protective housing, through install protective housing additional to hold-in range, synchronous pulley, take-up pulley, protects drive assembly's operation.
In the above technical scheme, the incident angle of the turnover object and the motion parameters of the turnover device satisfy the following conditions: when entering the spoke piece gap of the rotating wheel, the turnover object has a gap with the radial tail end of the spoke piece; when the turn-over object enters the turn-over mechanism, the corresponding spoke piece clearance is at the corner theta above the horizontal plane up And a rotation angle theta below the horizontal plane down The following formula is satisfied:
θ up ≥θ in_max ；θ down ≤θ in_min ；|θ up |+|θ down |≤θ 0 ；
in the formula: t is t a The time taken for the turn-over object to contact the upper edge of the spoke gap from the first conveyor belt; t is t b The time for the turnover object to contact with the lower edge of the gap between the spoke piece and the turnover mechanism after the turnover object is separated from the first conveying belt and enters the turnover mechanism; g is the acceleration of gravity; theta 0 Is a spoke piece clearance central angle; l 0 The horizontal distance from a turn-over object separation point on the first conveyor belt to an inlet of the turn-over mechanism; h is 0 The vertical distance from the disengagement point of the turnover object on the first conveyor belt to the horizontal plane of the rotating wheel shaft; h is 1 Moving the turnover object from the first conveying belt to the vertical displacement of the upper edge of the spoke piece gap; h is 2 Moving the turnover object from the first conveying belt to the vertical displacement of the lower edge of the spoke piece gap; r is the radius of the circumscribed circle of the turn-over object; v 1 Is the belt linear speed of the first conveyor belt; n is the number of the spoke pieces of the rotating wheel; r is the radius of the circumscribed circle of the rotating wheel.
In the technical scheme, when the turnover object obtained by the formula enters the turnover mechanism, the corresponding corner theta on the upper surface of the spoke piece gap up And the following rotation angle theta down When entering into the gap of the spoke piece of the rotating wheel, the turnover object can not touch the radial tail end of the spoke piece, and the collision instability of the turnover object is avoided.
In the technical scheme, the structural parameters of the turnover mechanism meet the following conditions: when the turnover object rotates downwards from the left horizontal position to be separated from the turnover support, a gap is formed between the turnover object and the arc support plate of the turnover support, and the side edge deflection angle theta of the arc support plate of the turnover support is determined a Maximum value of (theta) a_max (ii) a When the turning object moves to contact with the guide plate, the radial displacement of the turning object relative to the circumcircle of the rotating wheel is larger than r, and the deflection angle theta between the guide plate and the horizontal plane is determined b Minimum value of (theta) b_min (ii) a The radial velocity and displacement formula of the turn-over object on the web is as follows:
according to an initial condition theta 0 ＝arctan(μ)；v 0 ＝0；s 0 =0, it can be found that:
θ can be obtained from the following formula a And theta b ：
In the formula: r 0 Is the radius of the base wheel of the rotating wheel, mu is the friction coefficient between the turnover object and the rotating wheel; theta a And theta b ∈[0,π/2]ω is the rotational angular velocity of the rotary wheel (ω =2 π n), θ 0 The initial included angle between the surface of the spoke and the horizontal plane when the turn-over object moves radially relative to the spoke; v. of 0 And s 0 Respectively the initial speed and the initial displacement of the turnover object relative to the movement of the spoke piece; v and s are respectively the radial speed and the radial displacement of the turnover object relative to the movement of the spoke piece;
deflection angle theta corresponding to the object to be turned a Which in response to radial displacement on the web,
deflection angle theta corresponding to the object to be turned b Radial displacement on its corresponding spoke。
In the technical scheme, the side deflection angle theta of the arc support plate of the turn-over support can be determined through the formula a Maximum value of (theta) a_max Angle of deflection of the deflector from the horizontal plane theta b Minimum value of theta b_min Therefore, when the turnover object rotates downwards from the left horizontal position to be separated from the turnover support, the turnover object is not in contact with the arc support plate of the turnover support, when the turnover object moves to be in contact with the guide plate, the radial displacement of the turnover object relative to the circumcircle of the rotating wheel is larger than r, and the turnover object is smoothly guided out from the turnover mechanism and transited to the second conveying belt.
Additional aspects and advantages of embodiments in accordance with the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments in accordance with the application.
Drawings
FIG. 1 is a schematic partial perspective view of a turn-over apparatus according to one embodiment of the present application;
fig. 2 is a perspective view of a turn-over apparatus according to an embodiment of the present application;
fig. 3 is a front view schematic diagram of a turn-over apparatus according to an embodiment of the present application;
FIG. 4 is a schematic top view of a turn-over apparatus according to an embodiment of the present application;
fig. 5 is a partial front view schematic diagram of a turn-over apparatus according to an embodiment of the present application.
Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 to 5 is as follows:
110 first conveyor belt, 120 second conveyor belt, 130 turn-over bracket, 140 rotating wheel shaft, 150 supporting shaft, 160 rotating wheel, 170 shock-absorbing bar, 180 air vent hole, 190 side cover plate, 210 guide frame, 220 air tap, 230 guide plate, 240 motor, 250 protective cover case, 260 encoder, 270 turn-over object.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
Some embodiments according to the present application are described below with reference to fig. 1-5.
As shown in fig. 1, the turn-over apparatus according to one embodiment of the present invention includes a first conveyor belt 110, a second conveyor belt 120, and a turn-over mechanism. Specifically, the first conveyor belt 110 is used to input the flip object 270. The second conveyor belt 120 is disposed at an interval from the first conveyor belt 110, and the second conveyor belt 120 is used to output the turnover object 270. The flipping mechanism engages the output end of the first conveyor 110 with the input end of the second conveyor 120. The turn-over mechanism includes a turn-over bracket 130 and a rotating wheel 160. The turn-over bracket 130 is fixedly arranged, the rotating wheel 160 is rotatably connected with the turn-over bracket 130, and the rotating wheel 160 is used for driving the turn-over object 270 to do turn-over motion. The rotating wheel 160 includes a rotating sleeve and a plurality of spokes, which are uniformly arranged between two end faces of the rotating sleeve along the circumferential direction.
The turn-over device provided by the embodiment comprises a first conveyor belt 110, a second conveyor belt 120 and a turn-over mechanism. The first conveyor belt 110 is used for inputting the flip objects 270, and the second conveyor belt 120 is used for outputting the flip objects 270. The flipping mechanism connects the output end of the first conveyor 110 with the input end of the second conveyor 120 for flipping the object 270. The input and output directions of the flip object 270 are the same, and can be conveniently combined with other devices without a reversing device. Specifically, the turn-over mechanism includes a turn-over bracket 130 and a rotation wheel 160. The rotating wheel 160 is rotatably connected to the turn-over bracket 130 for driving the turn-over object 270 to make a turn-over motion. The rotating wheel 160 comprises a rotating sleeve and a plurality of spokes, the spokes are uniformly arranged between two end faces of the rotating sleeve along the circumferential direction, a spoke gap formed between two adjacent spokes can be used for entering the turnover object 270, the spoke gap has no pressure on the turnover object 270, the surface abrasion of the turnover object 270 can be reduced, and when the chord length of an external circle corresponding to the two adjacent spokes is less than or equal to the diameter of the external circle of the turnover object 270, the turnover object 270 can be ensured not to turn over in the spoke gap, so that the turnover motion is ensured to be stable.
In the above embodiment, the turn-over stand 130 includes a planar plate and a circular arc plate provided on the planar plate, and the circular arc plate is provided therein for mounting the rotating wheel 160. The arc support plate is provided with a first opening near the first conveyor belt 110, the first opening enables the turnover object 270 to enter the spoke gap from the first conveyor belt 110, the arc support plate is provided with a second opening near the second conveyor belt 120, and the second opening enables the turnover object 270 to transition from the spoke gap to the second conveyor belt 120.
As shown in fig. 2, further, the turn-over mechanism further includes a guiding frame 210, the guiding frame 210 is disposed at the first opening and is engaged with the first conveying belt 110 and the rotating wheel 160, so that the turn-over object 270 is transited from the first conveying belt 110 to the rotating wheel 160, and the stability of the turn-over movement is increased. An air nozzle 220 is installed above the guide frame 210, and the air nozzle 220 may be a cylindrical air nozzle, and blows air to the turn-over object 270 when the turn-over object enters the rotating wheel 160, so as to prevent the turn-over object 270 from colliding with the spoke piece and flying out of a sector space corresponding to the gap between the spoke pieces. The blowing direction and the air flow of the cylindrical air tap can be adjusted according to actual needs.
Further, turn-over mechanism still includes guide plate 230, and guide plate 230 is located the second opening, links up and rotates wheel 160 and second conveyer belt 120, makes turn-over object 270 from rotating wheel 160 transition to second conveyer belt 120 on, has increased the stability of turn-over motion. The spoke piece is provided with a plurality of rectangular grooves, and correspondingly, the guide frame 210 and the guide plate 230 are respectively provided with the same number of tooth pieces and racks, the tooth pieces are used for realizing the transition of the turnover object 270 from the first conveying belt 110 to the rotating wheel 160, and the racks are used for realizing the transition of the turnover object 270 from the rotating wheel 160 to the second conveying belt 120, so that the stable transportation of the turnover object 270 is ensured.
In some embodiments, the rotating wheel 160 further includes a damper bar 170 and a plurality of vent holes 180, the damper bar 170 being disposed at the root of two adjacent spokes, and being capable of reducing collision and wear of the turn-over object 270 in the spoke gap during movement of the rotating wheel 160. The root of each spoke piece gap of the rotating wheel 160 is provided with a certain number of air vents 180 along the axial direction, when the turnover object 270 moves to be contacted with the guide plate 230, air can be properly blown, the collision between the turnover object 270 and the previous spoke piece rotating by the rotating wheel is avoided, and the transition of the turnover object 270 to the second conveying belt 120 is accelerated.
In the above embodiment, as shown in fig. 3 and 4, the turn-over apparatus further includes a plurality of support shafts 150, and one end of each support shaft 150 is connected to a surface of the planar support plate away from the arc support plate for fixing the turn-over support 130. The rotating wheel 160 further comprises a rotating wheel shaft 140, the rotating wheel shaft 140 is rotatably connected with the plane support plate, the rotating sleeve is sleeved on the rotating wheel shaft 140, and the rotating wheel 160 is mounted on the turnover bracket 130 through the rotating wheel shaft 140. The turn-over mechanism further comprises a side cover plate 190, the side cover plate 190 is connected with the other end of the rotating wheel shaft 140 and is attached to one end of the arc support plate, and the side cover plate 190 is assembled with the turn-over support 130 through the rotating wheel shaft 140.
In the above embodiment, the turn-over apparatus further includes a driving assembly, and the driving assembly is configured to drive the rotating wheel 160 to rotate, so as to turn over the turn-over object 270. The drive assembly includes a timing belt assembly, a motor 240, and an encoder 260. The synchronous belt assembly is located on one side of the side cover plate 190 far away from the turn-over bracket 130, the rotating wheel 160 is driven by the motor 240 to move through synchronous belt transmission, and the encoder 260 is installed at one end of the rotating wheel shaft 140 and used for obtaining the rotating angle corresponding to the upper surface and the lower surface of the spoke piece gap when the turning object enters the turn-over device. The turn-over device further comprises a protective cover housing 250, and the synchronous belt, the synchronous belt wheel and the tension wheel are additionally provided with the protective cover housing 250 to protect the operation of the driving assembly.
In the above embodiment, a spoke gap is formed between two adjacent spokes, the turn-over object 270 passes through the guide frame 210 from the first conveyor belt 110 and enters the spoke gap, the spoke gap has no pressure on the turn-over object 270, and the turn-over object 270 can move in the spoke gap, so that the turn-over object 270 is less worn. The chord length of the circumscribed circle corresponding to two adjacent spokes is less than or equal to the diameter of the circumscribed circle of the turnover object 270, so that the turnover object 270 can not turn over in the gap between the spokes, and the stable turnover motion is ensured. The flip object 270 includes a circular object, a regular or irregular object, and the flip object 270 preferably has a shape and a size of: the shape of the circle, the polygon and the irregular shape, the diameter of the circumscribed circle is 16mm to 32mm, and the thickness is 0.6mm to 3mm; the turn-over device has high turn-over efficiency, and the preferred motion parameters are as follows: the turning speed of the turning object 270 is 0-1200 (pieces/minute), and the rotation speed of the turning mechanism is 0-120 (turns/minute); the turnover object 270 is not pressed in the turnover process, and the key parts are made of low-friction non-metallic materials, so that the surface abrasion of the turnover object 270 can be reduced; the turn-over mechanism does not need related parts such as a belt and the like, and the whole mechanism is compact; the corresponding flip objects 270 have the same belt in-and-out direction and can be used in combination with other devices without a reversing device.
As shown in fig. 1 to 5, the turn-over apparatus according to one embodiment of the present invention includes a first conveyor belt 110 and a second conveyor belt 120 supported on a wall plate, both moving in the same direction, the second conveyor belt 120 being located below the first conveyor belt 110, and an output end of the first conveyor belt 110 being connected to an input end of the second conveyor belt 120 through a turn-over mechanism. The turn-over mechanism comprises a turn-over bracket 130, a rotating wheel 160, a side cover plate 190, a guide frame 210 and a guide plate 230. The turn-over bracket 130 is fixed to the wall panel by a plurality of support shafts 150. The rotating wheel 160 and the side cover plate 190 are sequentially assembled with the turn-over bracket 130 through the rotating wheel shaft 140, the bearing and the like. The guide frame 210 is fixedly installed at the upper right of the turn-over bracket 130, so as to connect the first conveyor belt 110 with the rotating wheel 160. The deflector 230 is fixedly installed at the lower left of the turn-over bracket 130 to connect the rotating wheel 160 with the second conveyor belt 120. The rotating wheel 160 is driven by a motor 240 through synchronous belt transmission to realize movement, and parts such as a synchronous belt, a synchronous belt wheel and a tension wheel are arranged on the outer side of the side cover plate 190 and are additionally provided with a protective cover case 250. An encoder 260 is mounted to one end of the rotating axle 140.
Wherein, the rotating wheel 160 contains N evenly distributed spokes to form N spoke gaps, and the value of N is determined according to N = m/N. To ensure that the flipped object 270 does not flip in the spoke gaps of the rotating wheel 160, two adjacent spokes on the rotating wheel 160The chord length Lc of the circumscribed circle corresponding to the sheet should satisfy Lc is less than or equal to d. The diameter D of the arc support plate on the turn-over bracket 130 should satisfy D = D + epsilon (epsilon > 0, which is determined according to actual needs), the running directions of the first conveyor belt 110 and the second conveyor belt 120 are consistent, and a linear speed difference V = V exists 2 -V 1 . Each spoke is provided with a plurality of rectangular grooves (the size is L multiplied by W), W is larger than W, and L is less than or equal to d/2. Accordingly, the guide frame 210 and the guide plate 230 have the same number of teeth and racks, respectively, and have a width W1= W2= W-0.001, and a minimum gap Δ (1 mm in this example, determined according to actual needs) between the end of the guide frame and the root of the rectangular groove on the rotating wheel 160; the upper part of the teeth on the guide frame 210 and the upper surface of the first conveyor belt 110 have a certain downward deviation angle alpha; the surface of the rack on the guide plate 230 and the upper surface of the second conveyor belt 120 have a certain downward deflection angle β, the end of the rack has a chamfer, and the lower part of the guide plate 230 is a transition arc. The teeth on the guide frame 210, the arc of transition of the lower portion of the deflector 230, and the rack thereof are used to realize smooth transition of the turnover object 270 from the first conveyor belt 110 to the rotating wheel 160, and from the rotating wheel 160 to the second conveyor belt 120. In the formula: m is the turn-over speed (unit: one piece/minute) of the turn-over object 270, n is the rotation speed (unit: rotation/minute) of the turn-over mechanism, d and w are the diameter and thickness (unit: meter) of the circumscribed circle of the turn-over object 270, respectively, and V 1 、V 2 The belt linear speeds (unit: m/sec) of the first and second conveyor belts 110 and 120, respectively, and L and W are the length and width of the rectangular groove, respectively.
As shown in fig. 5, further, in order to ensure that the turning object 270 smoothly completes the turning action, the incident angle of the turning object 270 and the motion parameters of the turning device need to satisfy the requirement that the turning object 270 cannot touch the radial ends of the spokes when entering the gaps between the spokes of the rotating wheel 160, so as to avoid the collision instability of the turning object 270. When the turnover object 270 enters the turnover mechanism, the corresponding corner theta on the spoke piece gap up And the following rotation angle theta down Satisfies the following formula:
θ up ≥θ in_max ；θ down ≤θ in_min ；|θ up |+|θ down |≤θ 0 ；
in the formula: t is t a The time taken for the flipped object 270 to self-detach from the first conveyor belt 110 to contact the upper edge of the spoke gap; t is t b The time taken for the turnover object 270 to enter the turnover mechanism from the first conveyor belt 110 to contact with the lower edge of the spoke piece gap; g is the acceleration of gravity; theta.theta. 0 Is a spoke piece clearance central angle; l. the 0 The horizontal distance from the disengagement point of the flipped object 270 on the first conveyor 110 to the entrance of the flipping mechanism; h is 0 The vertical distance from the departure point of the flipped object 270 on the first conveyor belt 110 to the horizontal plane of the rotating axle 140; h is 1 Is a vertical displacement of the flipped object 270 from the disengaging first conveyor 110 to the upper edge of the spoke gap; h is 2 Is a vertical displacement of the flipped object 270 from the disengaging first conveyor 110 to the lower edge of the spoke gap; r is the circumscribed circle diameter of the turn-over object 270; v 1 The belt linear velocity of the first conveyor belt 110; n is the number of spokes of the rotating wheel 160; r is the radius of the circumscribed circle of the rotating wheel 160.
As shown in fig. 4 and 5, between the spokesActual angle of rotation theta of the gap up And theta down Obtained through the encoder 260, the control system controls the motor 240 to meet the above requirements by adjusting the rotating speed thereof, thereby ensuring that the turn-over object 270 smoothly enters the turn-over mechanism. Meanwhile, an air nozzle 220 is installed above the guide frame 210, and when the turnover object 270 enters the turnover mechanism, air is blown to the turnover mechanism, so that the turnover object 270 is prevented from colliding with the spoke piece and flying out of a sector space corresponding to the gap of the spoke piece. The blowing direction and the air flow of the air nozzle 220 can be adjusted according to actual needs.
Further, in order to ensure that the turnover object 270 smoothly completes the turnover action, the structural parameters of the turnover device need to meet the requirement that the turnover object is smoothly led out from the turnover device and transited to the coin discharging belt, namely when the turnover object 270 rotates downwards from the left horizontal position to be separated from the turnover bracket 130, the turnover object 270 is not in contact with the arc support plate of the turnover bracket 130, and the side deflection angle theta of the arc support plate of the turnover bracket 130 can be determined a Maximum value of (theta) a_max (ii) a When the turning object 270 moves to contact with the guide plate 230, the radial displacement of the turning object 270 relative to the circumcircle of the rotating wheel 160 is larger than r, and the deflection angle theta between the guide plate 230 and the horizontal plane can be determined b Minimum value of (theta) b_min . The radial velocity and displacement of the turn-over object 270 on the web are given by the formula:
according to the initial condition theta 0 ＝arctan(μ)；v 0 ＝0；s 0 =0, it can be found that:
by
Can obtain theta a And theta b 。
In order to avoid collision between the turning object 270 and the previous spoke in the rotation of the rotating wheel and further ensure smooth transition of the turning object 270 to the second conveyor belt 120, the root of the gap between each spoke of the rotating wheel 160 is axially provided with a certain number of air vents 180, so that when the turning object 270 moves to the guide plate 230 for contact, air can be properly blown to accelerate the transition of the turning object 270 to the second conveyor belt 120.
The rotating wheel 160, the guide frame 210 and the guide plate 230 are made of light and low-friction non-metal materials (such as polyformaldehyde and polytetrafluoroethylene), low-friction materials (such as polytetrafluoroethylene) are sprayed on the inner sides of arc support plates on the turn-over support 130, and shock-absorbing bars 170 (made of high-damping materials such as rubber and sponge) are mounted at the roots of adjacent spokes on the rotating wheel 160 and used for reducing collision and abrasion of the turn-over object 270 in the movement process.
The operation flow of the turn-over device is that the turn-over object 270 on the first conveyor belt 110 is at a speed V 1 Enters the spoke gap of the rotating wheel 160 through the guide frame 210 (the rotating speed of the rotating wheel 160 is adjusted in real time according to the encoder 260), and rotates along with the rotating wheel 160, during which the movement of the turn-over object 270 is divided into two stages: (1) From when the turnover object 270 enters the spoke gap to when it rotates 180 ° axially along the rotating wheel 160, the turnover object 270 remains in contact with the root. (2) When the flipped object 270 is rotated more than 180 degrees axially along the rotating wheel 160, the flipped object 270 is accelerated to slide down along the spoke surface under the action of gravity. The flipped object 270 then exits the rotating wheel 160 spoke via the deflector plate 230, transitions onto the second conveyor belt 120 and is output.
In this embodiment, the physical parameters are: μ =0.04 (coefficient of friction of polytetrafluoroethylene to steel), N =15, g =9.8, r =0.07, r 0 ＝0.025，r＝0.016，n＝1，V 1 ＝40，l 0 ＝0.02，h 0 And =0.01. According to the formula theta up ≥θ in_max ；θ down ≤θ in_min ；|θ up |+|θ down |≤θ 0 And
can obtain theta in_max ＝8.21°，θ in_min ＝8.2°，θ a_max ＝37.47°，θ b_min =49.7 °, then θ up ≥8.21°，θ down ≤8.2°，θ a ∈[0,37.47°]，θ b ∈[49.7°,90°]。
In consideration of the influence of the friction coefficient, the collision impact, and the like of different materials on the turn-over effect of the turn-over object 270, it is preferable that: actual rotation angle theta of spoke piece gap when turnover object 270 enters turnover device up The value range is [8.5,16 DEG ]](the value of this example is 10 °), θ down The value range is [ -15.5,8 °](the value of this example is 0 °); arc support plate side declination angle theta of turnover support 130 a The value range is [20,30 DEG ]](the value of this example is 30 °); the angle of deviation theta between the baffle 230 and the horizontal plane b The value range is [50,65 DEG ]](the value of this example is 52 °).
In summary, the embodiment has the following advantages: the turnover device realizes turnover of the turnover object 270 under the driving of the rotating wheel 160, and has the advantages of simple principle, compact structure, modular installation, simple and convenient maintenance, wide application range and difficult damage to objects.
In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A turn-over apparatus, comprising:
a first conveyor belt (110), the first conveyor belt (110) being used for inputting a flip object (270);
a second conveyor belt (120), the second conveyor belt (120) being spaced apart from the first conveyor belt (110), the second conveyor belt (120) being configured to output the flipped object (270);
a turn-over mechanism engaging an output of the first conveyor (110) with an input of the second conveyor (120), the turn-over mechanism comprising:
the turnover support (130), the turnover support (130) is fixedly arranged;
the rotating wheel (160) is rotatably connected with the turnover support (130), the rotating wheel (160) is used for driving the turnover object (270) to do turnover motion, the rotating wheel (160) comprises a rotating sleeve and a plurality of spoke pieces, and the spoke pieces are uniformly arranged between two end faces of the rotating sleeve along the circumferential direction;
the turnover support (130) comprises a plane support plate and an arc support plate, the arc support plate is arranged on the plane support plate, a first opening is formed in the position, close to the first conveying belt (110), of the arc support plate, and a second opening is formed in the position, close to the second conveying belt (120), of the arc support plate;
the turn-over mechanism further comprises:
the guide frame (210) is arranged at the first opening, and the guide frame (210) is used for connecting the first conveying belt (110) with the rotating wheel (160);
an air nozzle (220) is arranged on the guide frame (210), and the air nozzle (220) is used for blowing air to the turnover object (270);
the rotating wheel (160) further comprises a plurality of exhaust holes (180), and the exhaust holes (180) are formed in the rotating sleeve and located between two adjacent spoke pieces.
2. The turn-over apparatus of claim 1,
the turn-over mechanism further comprises:
the guide plate (230) is arranged at the second opening, and the guide plate (230) is used for connecting the rotating wheel (160) and the second conveying belt (120).
3. The turn-over apparatus of claim 2,
a plurality of rectangular grooves are formed in the spoke piece;
a plurality of tooth sheets are arranged on the guide frame (210), the tooth sheets are matched with the rectangular grooves, and the tooth sheets are used for realizing the transition of the turnover object (270) from the first conveying belt (110) to the rotating wheel (160);
the deflector (230) is provided with a plurality of racks which are matched with the rectangular grooves and are used for realizing the transition of the turning objects (270) from the rotating wheel (160) to the second conveying belt (120).
4. Turn-over device according to one of the claims 1 to 3,
the rotating wheel (160) further comprises a damping strip (170), and the damping strip (170) is arranged at the root parts of two adjacent spoke pieces.
5. The turn-over apparatus according to any one of claims 1 to 3,
the turn-over device further comprises a plurality of supporting shafts (150), and one end of each supporting shaft (150) is connected with one surface, far away from the circular arc supporting plate, of the plane supporting plate.
6. The turn-over apparatus of claim 1 or 2,
the rotary wheel (160) further comprises:
one end of the rotating wheel shaft (140) is rotatably connected with the plane support plate, and the rotating sleeve is sleeved on the rotating wheel shaft (140).
7. The turn-over apparatus of claim 6,
the turn-over mechanism further comprises:
and the side cover plate (190) is connected with the other end of the rotating wheel shaft (140), and the side cover plate (190) is attached to one end of the arc support plate.
8. The turn-over apparatus of claim 7,
the turn-over device further comprises:
a driving assembly for driving the rotating wheel (160) to rotate.
9. The turn-over apparatus of claim 8,
the drive assembly includes:
the synchronous belt assembly is positioned on one side, away from the turn-over bracket (130), of the side cover plate (190) and connected with the rotating wheel shaft (140), and comprises a synchronous belt, a synchronous pulley and a tension pulley;
a motor (240), the motor (240) for driving the timing belt assembly;
an encoder (260) connected to one end of the rotating hub (140).
10. The turn-over apparatus of claim 9,
the turn-over device further comprises:
the protective cover (250) is connected with the side cover plate (190) and surrounds an accommodating cavity with the side cover plate (190), and the synchronous belt, the synchronous pulley and the tension pulley are located in the accommodating cavity.
11. The turn-over apparatus of claim 3,
the incident angle of the turnover object and the motion parameters of the turnover device meet the following conditions: when the turnover object enters the spoke piece gap of the rotating wheel, a gap is formed between the turnover object and the radial tail end of the spoke piece;
when the turnover object enters the turnover mechanism, the rotation angle theta of the gap of the spoke piece above the horizontal plane is corresponding to up And a rotation angle theta below the horizontal plane down The following formula is satisfied:
θ up ≥θ in_max ；θ down ≤θ in_min ；|θ up |+|θ down |≤θ 0 ；
in the formula: t is t a For the time it takes for the turn-over object to self-disengage the first conveyor belt into contact with the upper edge of the spoke gap; t is t b The time for the turnover object to self-release from the first conveying belt and enter the turnover mechanism to contact with the lower edge of the spoke piece gap is adopted; g is the acceleration of gravity; theta 0 Is the spoke piece gap central angle; l 0 The horizontal distance from the turn-over object separation point on the first conveyor belt to the entrance of the turn-over mechanism; h is 0 The vertical distance from the turning object separation point on the first conveyor belt to the horizontal plane where the rotating wheel shaft is located; h is a total of 1 Moving the turnover object from the first conveying belt to the vertical displacement of the upper edge of the spoke piece gap; h is a total of 2 Moving the turnover object from the first conveying belt to the vertical displacement of the lower edge of the spoke piece gap; r is the radius of the circumscribed circle of the turnover object; v 1 Is the belt linear speed of the first conveyor belt; n is the number of the spoke pieces of the rotating wheel; and R is the radius of the circumscribed circle of the rotating wheel.
12. The turn-over apparatus of claim 11,
the structural parameters of the turnover mechanism meet the following conditions: when the turnover object rotates downwards from the horizontal position at the left side and is separated from the turnover support, an interval is formed between the turnover object and the arc support plate of the turnover support, and the side deflection angle theta of the arc support plate of the turnover support is determined a Maximum value of (theta) a_max ；
When the turning object moves to be in contact with the guide plate, the radial displacement of the turning object relative to the circumcircle of the rotating wheel is largeAt r, determining the deflection angle theta between the guide plate and the horizontal plane b Minimum value of (theta) b_min ；
The radial velocity and displacement formula of the turn-over object on the spoke is as follows:
according to the initial condition theta 0 ＝arctan(μ)；v 0 ＝0；s 0 =0, it can be found that:
θ can be obtained from the following equation a And theta b ：
In the formula: r is the radius of the circumscribed circle of the rotating wheel, R 0 Is the base wheel radius of the rotating wheel, mu is the friction coefficient of the turning object and the rotating wheel; theta a And theta b ∈[0,π/2]ω is the angular velocity of rotation of the rotating wheel (ω =2 π n), θ 0 The initial included angle between the surface of the spoke piece and the horizontal plane when the turnover object moves radially relative to the spoke piece is obtained; v. of 0 And s 0 Respectively the initial speed and the initial displacement of the turnover object relative to the movement of the spoke piece; v and s are respectively the radial velocity and the radial displacement of the turnover object relative to the motion of the spoke;
a deflection angle corresponding to the turnover objectθ a Which corresponds to a radial displacement on the web,
a deflection angle theta corresponding to the turnover object b Which corresponds to the radial displacement on the web.
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| CN203474009U (en) * | 2013-10-16 | 2014-03-12 | 允昌科技(苏州)有限公司 | Turn-over mechanism |
| CN109528123A (en) * | 2018-04-16 | 2019-03-29 | 普瑞美株式会社 | Tableware service plate turnover device and the system that washes the dishes using the device |
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| CN213504686U (en) * | 2020-10-09 | 2021-06-22 | 万宝龙(漳州)金属制品有限公司 | Device for conveying and turning can cover |
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| FR2914289B1 (en) * | 2007-03-26 | 2010-05-07 | Proditec | REVERSING DEVICE FOR TRANSFER CHAIN. |
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| CN203474009U (en) * | 2013-10-16 | 2014-03-12 | 允昌科技(苏州)有限公司 | Turn-over mechanism |
| CN109528123A (en) * | 2018-04-16 | 2019-03-29 | 普瑞美株式会社 | Tableware service plate turnover device and the system that washes the dishes using the device |
| CN110526003A (en) * | 2019-08-26 | 2019-12-03 | 许昌裕同印刷包装有限公司 | A kind of the cardboard turning device and its application method of efficient stable |
| CN213504686U (en) * | 2020-10-09 | 2021-06-22 | 万宝龙(漳州)金属制品有限公司 | Device for conveying and turning can cover |
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Address after: 100070 8th floor, building 2, No.5 Zhonghe Road, Fengtai Science City, Fengtai District, Beijing Applicant after: China Banknote Printing Technology Research Institute Co.,Ltd. Applicant after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 100070 8th floor, building 2, No.5 Zhonghe Road, Fengtai Science City, Fengtai District, Beijing Applicant before: China Banknote Printing Technology Research Institute Co.,Ltd. Applicant before: CHINA BANKNOTE PRINTING AND MINTING Corp. |
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