SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the present invention is to provide an automatic turnover device for plate-like objects, which can solve the problems of low automation level and slow production speed of the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the embodiment of the utility model discloses an automatic turnover device for a plate-shaped object, which comprises a bracket, a guide rail, a sliding plate, a turnover shaft, a clamping mechanism for clamping the plate-shaped object, a driving device and a transmission mechanism, wherein,
the guide rail is arranged on the bracket;
the sliding plate is movably arranged on the guide rail, the turnover shaft is rotatably arranged on the sliding plate,
the clamping mechanism is fixed on the turnover shaft and overturns along with the rotation of the turnover shaft;
the transmission mechanism is respectively connected with the turnover shaft and the driving device and is used for transmitting the power of the driving device to the turnover shaft so as to enable the turnover shaft to simultaneously rotate and linearly displace.
Furthermore, the transmission mechanism comprises a shifting shaft which is rotationally fixed on the sliding plate, a turning wheel which is fixed on the turning shaft, a shifting wheel which is fixed on the shifting shaft and a transition wheel, wherein,
the clamping mechanism is fixed on the turnover wheel;
the driving device drives the transfer wheel to rotate through a first transmission piece, so that the transfer shaft moves linearly along the length direction of the guide rail;
the transition wheel drives the turnover wheel to rotate through a second transmission piece.
Furthermore, the first transmission piece and the second transmission piece are both chains, and the overturning wheel, the transition wheel and the transferring wheel are all gears; and,
wherein,
z1 is the number of teeth on the flipping wheel,
z2 is the number of teeth in the transition gear,
z3 is the number of teeth of the transfer wheel,
p is the pitch of the chain,
s is the moving stroke of the transfer wheel,
n is the number of turns of the transition wheel and the transfer wheel when the turnover wheel rotates 180 degrees.
Furthermore, the number of the turning wheels is two, the number of the transferring wheels is two, and the number of the transition wheels is two;
the two transition wheels are respectively positioned on the same plane in a one-to-one correspondence manner with the two turnover wheels;
the two transfer wheels are respectively arranged at two ends of the transfer shaft.
Further, the clamping mechanism comprises a clamping frame and two clamping assemblies which are symmetrically arranged up and down, the clamping assemblies comprise a clamping cylinder, a joint mechanism and a clamping block, wherein,
the clamping frame is fixed on the turnover shaft;
the clamping cylinder is connected with the clamping blocks through a joint mechanism, so that the two clamping blocks move oppositely or reversely.
Further, the joint mechanism comprises two joint components and a connecting rod which connects the two joint components together to enable the two joint components to act synchronously,
the joint component comprises an L-shaped joint part, a first joint shaft, a second joint shaft and a third joint shaft which are respectively and rotatably arranged at two ends and a turning position of the L-shaped joint part, wherein,
the two first joint shafts are connected through a connecting rod;
the two second joint shafts are respectively and rotatably connected to the clamping blocks;
the two third joint shafts are respectively and rotatably fixed on the clamping frame; and,
the end of one of the L-shaped joint members is provided with a hinge member hinged to the clamping cylinder.
Further, a flexible material, preferably a polyurethane material, is mounted on the clamping surface of the clamping block.
Furthermore, a gap groove is formed in the turnover wheel, one end of each clamping block is located in the gap groove, and the maximum distance between the two clamping blocks is larger than the thickness of the plate-shaped object.
Further, the device also comprises a conveying roller, wherein the conveying direction of the conveying roller is perpendicular to the linear displacement direction of the turnover shaft.
Further, the overturning device also comprises a resetting mechanism which resets the overturning shaft to the original state when the driving device is started.
Further, the reset mechanism comprises a reset belt, a driving shaft, a driven shaft and a reset block, wherein,
the reset belt is sleeved on the driving shaft and the driven shaft, so that the length direction of the reset belt is parallel to the guide rail,
the reset block is fixed on the reset belt, and the reset block can be pushed or kept away from the transfer shaft.
The utility model has the advantages that:
the utility model discloses a rotation and the linear displacement of trip shaft go on simultaneously, and one set of drive arrangement of the two sharing has realized the problem of 180 and the continuous upset of door plant upset, practices thrift the cost, and the upset is steady, and the security is high.
The utility model has the advantages that the upper and lower cylinders are arranged to be clamped by joints, so that the door plate requirements of different specifications can be met, and the clamping force can be ensured to ensure that the product does not fall or slide in the overturning process; meanwhile, the clamping device has the advantages of high clamping speed, large clamping range, equipment space saving, adjustable clamping force and the like.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention discloses an automatic plate turnover device, which comprises a support 1, a guide rail, a slide plate 3, a turnover shaft 4, a clamping mechanism 5 for clamping the plate, a driving device and a transmission mechanism, wherein,
the guide rail is arranged on the bracket 1;
the sliding plate 3 is movably arranged on the guide rail, the turnover shaft 4 is rotatably arranged on the sliding plate 3,
the clamping mechanism 5 is fixed on the turnover shaft 4 and overturns along with the rotation of the turnover shaft 4;
the transmission mechanism is respectively connected with the turnover shaft 4 and the driving device and is used for transmitting the power of the driving device to the turnover shaft 4 so as to enable the turnover shaft 4 to simultaneously rotate and linearly displace.
In this embodiment, linear motion and rotation when realizing trip shaft 4 through guide rail, slide 3, trip shaft 4 and drive mechanism can adopt same drive, both can guarantee the accurate nature between linear motion and the rotation, can save the cost greatly again.
As shown in fig. 3, in some embodiments of the present invention, the transmission mechanism comprises a transferring shaft 6 rotatably fixed on the sliding plate 3, a turning wheel 7 fixed on the turning shaft 4, a transferring wheel 8 fixed on the transferring shaft 6, and a transition wheel 9, wherein,
the clamping mechanism 5 is fixed on the turnover wheel 7;
the driving device drives the transfer wheel 8 to rotate through a first transmission piece, so that the transfer shaft 6 linearly moves along the length direction of the guide rail;
the transition wheel 9 drives the turnover wheel 7 to rotate through a second transmission piece.
In the design, the travel of the transfer wheel 8 is determined by adding the safety distance to the maximum width of the door panel, and then the start and end positions of the transfer wheel 8 are found with the center line of the door panel as the reference (as shown in fig. 4), so that the center position of the door panel is fixed. Then, the starting point of the transfer wheel 8 is used as the original point of the equipment, the equipment can automatically reset the original point after the equipment is powered off and restarted every time, and can also be reset in a manual mode, so that the purpose of eliminating the inaccurate equipment centering caused by the accumulated error when the transfer wheel 8 moves back and forth is realized. The central position of the door panel is thus not shifted by the protection of the above double centering measures.
Specifically, the reset can be realized by the embodiment that, on the basis of the above embodiment, the automatic plate object turnover device further comprises a reset mechanism 27 for resetting the turnover shaft 4 to the original state when the driving device is started;
the reset mechanism 27 comprises a reset belt, a driving shaft, a driven shaft and a reset block, wherein,
the reset belt is sleeved on the driving shaft and the driven shaft, so that the length direction of the reset belt is parallel to the guide rail,
the reset block is fixed on the reset belt, and the reset block can be pushed or kept away from the transfer shaft 6.
As shown in fig. 5, in order to meet the requirement of a beat of 8 seconds, after 2 seconds required by corresponding feeding, discharging and clamping actions are deducted, the overturning and linear displacement actions must be completed within 6 seconds, and if the door plate needs to be overturned by 180 degrees within such a short time, the equipment must be required to be overturned continuously, and when the transfer mechanism of the equipment is set to be of a left-right reciprocating type, in order to avoid the action of returning the equipment without load, a left-right symmetrical design scheme is preferably adopted, namely, the door plate can be overturned no matter whether the overturning wheel 7 is on the left side or the right side of the equipment; meanwhile, the starting position and the end position of the transfer mechanism are also in bilateral symmetry with the central line of the equipment. Therefore, the transfer wheel 8 moves back and forth in the equipment, and each back and forth movement can turn over two door panels, so that the aim of continuous turning is fulfilled.
In some embodiments of the present invention, in order to save cost, the turning and the transferring (linear movement or horizontal movement) actions share one power system. The first transmission piece and the second transmission piece are both chains 10, and the overturning wheel 7, the transition wheel 9 and the transfer wheel 8 are all gears; and finally, the horizontal motion of the transfer mechanism is converted into the circular motion of the turnover wheel 7 through the power transmission of each chain wheel on the transfer shaft 6. Namely, the servo motor drives the transfer mechanism to move horizontally, the transfer wheel 8 moves circularly while moving horizontally along with the transfer mechanism, the transfer wheel 8 and the transition wheel 9 are coaxial, so the transition wheel 9 also moves in the same way, and finally, the transition wheel 9 transmits power to the turnover wheel 7, thereby realizing the 180-degree rotation of the turnover wheel 7. To ensure the rotation angle of the turnover wheel 7, we control the rotation angle of the turnover wheel 7 by the tooth ratio of each sprocket (as shown in fig. 3). May have the formula:
wherein,
z1 is the number of teeth of the flipping wheel 7,
z2 is the number of teeth of the transition wheel 9,
z3 represents the number of teeth of the transfer wheel 8,
p is the pitch of the chain 10,
s is the travel of the transfer wheel 8,
and N is the number of turns of the transition wheel 9 and the transfer wheel 8 when the turnover wheel 7 rotates 180 degrees.
As shown in fig. 1 and 2, in some embodiments of the present invention, in order to make the turning and moving smooth, the number of the turning wheels 7 is two, the number of the transferring wheels 8 is two, and the number of the transition wheels 9 is two;
the two transition wheels 9 are respectively positioned on the same plane in one-to-one correspondence with the two turnover wheels 7;
the two transfer wheels 8 are respectively arranged at two ends of the transfer shaft 6.
In some embodiments of the present invention, as shown in fig. 1 and 6, the clamping mechanism 5 comprises a clamping frame 54 and two clamping assemblies disposed symmetrically up and down, the clamping assemblies comprising a clamping cylinder 51, an articulation mechanism 52, and a clamping block 53, wherein,
the clamping frame 54 is fixed on the turning shaft 4;
the clamping cylinder 51 is connected with the clamping blocks 53 through a joint mechanism 52, so that the two clamping blocks 53 move towards or away from each other.
In a preferred embodiment, the joint mechanism 52 comprises two joint assemblies, and a connecting rod 11 connecting the two joint assemblies for synchronous movement,
the joint assembly comprises an L-shaped joint part 12, and a first joint shaft 13, a second joint shaft 14 and a third joint shaft which are respectively and rotatably arranged at two ends and a turning position of the L-shaped joint part 12, wherein,
the two first joint shafts 13 are connected through a connecting rod 11;
the two second joint shafts 14 are rotatably connected to the clamping blocks 53, respectively;
the two third joint shafts are respectively rotatably fixed on the clamping frame 54; and,
one of the L-shaped articulations 12 is provided at its end with a hinge 15 articulated to the clamping cylinder 51.
The demand that can satisfy the door plant of equidimension not and different thickness of this embodiment, the cylinder adds joint clamping mechanism 5 about adopting, not only can adapt to the door plant demand of different specifications, can also guarantee to press from both sides tight dynamics and make the product not drop at the in-process of upset, do not slide. The advantages of this structure are also:
1) the clamping speed is high, and the whole clamping process can be finished in only 0.5 second.
2) The clamping range is large, and the clamping device can be suitable for products with different thicknesses.
3) The space of the equipment is saved, and the joint structure saves more space than the direct clamping of the air cylinder
4) The clamping force is adjustable, the thrust of the air cylinder is changed by adjusting the pressure valve, and the soft polyurethane material is arranged at the contact part of the clamping block 53 and the door plate, so that the product can be effectively prevented from being clamped and damaged, and meanwhile, the anti-skidding purpose is achieved.
Further preferably, in order to make the clamping and the overturning more stable and the structure more compact, the overturning wheel 7 is provided with a notched groove 71, one end of the clamping block 53 is located in the notched groove 71, and the maximum distance between the two clamping blocks 53 is greater than the thickness of the plate-shaped object. The clamping frames 54 are fixed above and below the notch groove 71, and are used for fixing the upper clamping cylinder 51, the upper clamping joint mechanism 52, the lower clamping cylinder 51 and the lower clamping joint mechanism 52 respectively, so as to ensure the symmetry of the vertical displacement.
As shown in fig. 1, some preferred embodiments of the present invention further comprise a conveying roller 26, wherein the conveying roller 26 has a conveying direction perpendicular to the linear displacement direction of the turning shaft 4.
The utility model discloses an in some preferred embodiments, drive arrangement adopts the servo drive who has brake mechanism, not only can realize moving the axle 6 of carrying and accurately reacing the assigned position, can also ensure the stability of equipment use, and improve equipment security realizes the at the uniform velocity smooth upset of product. Even when the motor is abnormal and cannot work, the motor can stop at any angle, and the motor cannot be closed downwards quickly under the action of gravity, so that the product is damaged, even people are injured by crashing, and safety accidents occur.
The embodiment of the utility model provides an automatic tipping arrangement of plate object is when being used for the door plant upset, and the working process is as follows:
the clamping mechanism 5 fixed on the turnover wheel 7 firstly clamps one side of the door panel to enable the door panel to be in a horizontal state, specifically, the door panel is conveyed to a position between two clamping blocks 53 of the clamping mechanism 5 through the conveying roller 26, two clamping cylinders 51 are started to enable the two clamping blocks 53 to simultaneously move oppositely to clamp the door panel, after one-side operation is completed, the door panel begins to be turned over, firstly, the driving device firstly drives the transfer wheel 8 to rotate through a first transmission piece such as a chain 10 or a chain wheel, the transfer wheel 8 rotates to drive the transfer shaft 6 to move to the other side of the bracket along a guide rail, meanwhile, the rotation of the transfer wheel 8 also drives the transfer shaft to rotate, the transition wheel fixed on the transfer shaft 6 also simultaneously rotates along with the rotation of the transfer shaft 6, the rotation of the transition wheel 9 drives the turnover wheel 7 to rotate through a second transmission piece, further, the clamping mechanism 5 is driven to slowly turn over, and the door panel clamped, in the whole process, move the removal of carrying axle 6 and the upset of upset wheel 7 and go on simultaneously in step, through setting up reasonable sprocket number of teeth, guarantee when upset wheel 7 is rotatory 180, move and carry axle 6 displacement to preset position, can realize like this that move and carry axle 6 when target in place, the door plant is accomplished the upset and is seen off the door plant through conveying roller 26 after the operation of this face is accomplished, accomplishes door plant construction operation.
To sum up, the embodiment of the utility model discloses an automatic tipping arrangement of plate-like thing adopts space symmetry formula design and servo drive, upset wheel 7, transition wheel 9, moves the mode that carries wheel 8 combination, and structural design is reasonable, with low costs. The door plate not only can adapt to door plates with different specifications, but also has high stability. In the aspect of improving the production efficiency, the effect is very obvious, the whole production flow only needs 8 seconds from the beginning to the end, and the production efficiency of the plate-shaped object, particularly the wood door industry, is greatly improved. Meanwhile, the purposes of increasing efficiency and reducing personnel are achieved, work which can be completed by 2 persons originally is needed, and manual operation can be replaced by only one device. The device plays a positive upward role in the development of the wood door industry and even the whole wood-working machinery industry.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.