DE2324808A1 - DEVICE FOR PROMOTING OBJECTS BY PRE-LOADING LIFTERS - Google Patents

Description

CERABAT !, COMPAGNIE GENERALE DE LA CERAMIQUE DU BATIMENT P 050 02

A device for conveying of objects by precharging of lifters.

The invention relates to a device for conveying objects by pre-loading of lifters, in particular a device with which the objects from Output of a manufacturing machine can be transferred to a storey store and thereby an intermediate stage of pre-loading another tier arrangement go through like a vertical conveyor.

There are factories in which the objects coming from a foiling machine must be stored without touching each other. This is particularly true in the Ceramic industry required where the ceramic plates after molding without contact in fireproof compartments or storeys, called "gazettes", for burning be stacked.

After pressing, the ceramic plates can, for example, be placed directly in the storey store be transferred, which, however, requires a very complicated operation. It is therefore more advantageous and easier, a tier frame or at the exit of the manufacturing machine

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to load a vertical conveyor with stacked shovel-like lifters with the objects, the number and spacing of the lifters corresponding to the number and spacing of the floors of the storey store, whereupon the storey store is loaded by unloading all lifters once and at the same time. ' _r

The invention and advantageous details of the invention are based on the following * Schematic drawings of exemplary embodiments explained in more detail ". They show:

Fig. 1 shows a floor store with different levels in which objects are filed;

2 shows a device for pre-loading in the form of one above the other s shovel-like η jacks, each jack being shown loaded with an object is; ■

3 shows the essential parts of a device for storing or conveying objects and the

4 and 5 show a preferred practical embodiment of the essential parts a device according to FIG. 3.

The loading of the store will now be explained with reference to FIGS. 1 and 2.

When loading the store or basket, the objects 4, which have previously been loaded onto the lifter 3 of a vertically movable carrier 9, are brought to the corresponding compartments 2 of the storey in that the lifter is raised by the required amount in the direction of the whistle 7. The jacks are then inserted between the different levels of the stack memory characterized in that the support 5 moves in the direction of arrow wird.Darauf be lowered the lifters in the direction of arrow 8 to a height that for discharging and depositing the objects on the corresponding supports or Floors 1 is required. The lifters are then withdrawn in the direction of arrow 6 and ϊη moved back to their starting position for pre-loading in the direction of arrow 8 '.

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This procedure erioubi the loading of several horizontally side by side Direction perpendicular to the apples 5 and 7 arranged E fagenspeicher, if in the same way, the number of lifting devices according to FIG. 2 is multiplied isi. - '

However, the conveying sequence of the objects is interrupted by the fact that when depositing the, objects in the Etagerispeicher the pre-loading of the lifter with the. Objects must be interrupted. _v

With the invention, a device of the type described at the outset is to be designed in this way that this disadvantage is avoided. A primary object of the invention is hence therein, a device for conveying articles by pre-loading to create lifters> with the interruption of the feed sequence of objects is avoided in the loading device in that a temporary intermediate storage of the objects is made possible.

Another object of the invention is to provide an apparatus which can test with different cycle sequences and overall an increased output enables.

For this purpose, a device according to the invention is characterized by a support frame, a horizontal step conveyor and a vertical step conveyor wherein the advancement of the horizontal step conveyor by at least one step that Raising the vertical step conveyor by one step triggers, so that a step by step from the horizontal step conveyor via the lifters of the vertical step conveyor object brought by the latter when it rises by one Step is taken and lifted. ·

The horizontal step conveyor expediently comprises two conveyor belts or -Chains with equidistant links attached to the two belts or chains are aligned with each other and with subsequent drivers one Form gap to the transducer) of an object to be conveyed, wherein

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the distance between two successive drivers the length of the funding document The distance between two drivers is expediently somewhat larger than the dimension of the object in this direction and equal to that Length of a conveying step.

The vertical step conveyor preferably comprises a vertically movable carrier with equidistant tiers in the form of shovel-like lifters, and the distance between two successive tiers determines the length of the vertical conveying step. The distance between the straps is expediently chosen so that the carrier can move vertically between them with his shovel-like lifters. The distance or vertical conveying step p " and the number of lifters are identical to the distance and the number of floors of the storey. Furthermore, the carrier can make horizontal translational and rotational movements, as will be explained in the following. The horizontal step conveyor and the vertical step conveyor with the lifters are arranged on a support frame which has means for controlling the feed or stroke and for guiding.

According to the invention, the belts or chains move successively in steps by a step p, and the carrier for the jacks successively increases each by one step p "ah, the" feed sequence by one step p. and the stroke sequence can be controlled by one step p «so that the following Results are achieved:

1) If the lifters are not present between the belts or chains, each feeding of an object onto the belts or chains is followed by an advance by a step P ₁ with a small or slow sequence by means of an appropriate mechanism, which means that objects are temporarily stored on the belts without interrupting their Exit from ^{1 of} the manufacturing machine allows.

2) Upon arrival of the lift and intermittent supply of articles of this storage component is p _of objects ■ by advancing by one step ^

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followed by a stroke by one step p ~ with an increased clock sequence resorbed, which makes it possible to load the jacks with the objects, with [e one Item per lifter.

3) If the siphon is available and after resorption of the temporary storage stock, i.e., in normal operation, the supply of an item will follow the Belts or chains several feed steps to bring the object above the uppermost lifter and the vertical step conveyor, which then has one Lift by one step p ^ to load the corresponding lifter.

4) It is also possible to put two objects one after the other on each lifter by separating the space p. forms a half-letter between two drivers when the belts or chains move forward. Each feeding of an object onto the belts is followed by a half-step p., And the loading of each lifter is realized in that the belts are first moved by one step (or twice p.), Followed by a lift of the lifter by one step p_. When the belts are pushed forwards around a text, two objects are placed one on top of the other on the same lifter. Of course, the dimensions of the jacks in the direction of movement of the belts must be matched to this.

5) It is also possible to place η objects one after the other on each lifter, by providing that an article is fed through a Font p. the belts loading a lifter is realized in that the belt around np. Steps is vorwärfsbewegt, whereupon a stroke by one Step p «the lifter follows.

According to Fig. 3, a device according to the invention comprises a horizontal one Step conveyor with two belts or chains 10 that are parallel and spaced from one another This distance is dimensioned so that it is a vertical conveyor passes, the carrier 9 and shovel-like jack 3 comprises. These jacks

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are horizontal and parallel to each other with a distance p ,. The vertical support 9 can move vertically between the belts in the direction of arrows 7 and 8, controlled by any known device. Each belt or chain has drivers 11 aligned with one another, the distance of which from the next following drivers limits the space available for an object and is slightly larger than the dimension of the object in the longitudinal direction. The distance between the belts or chains is smaller than the width of the objects 4 and enables them to be supported between the drivers, as FIG. 3 shows. The drive for the belts or chains in the direction of arrow 12 is known and will not be described. It is a drive that enables the belts or chains to be pushed forward step by step, one step being determined by the distance P ₁ between the drivers. A control device for controlling the timing of the step feed is also provided. This control device (not shown) is of known type. The vertical movement or the ascent of the carrier 9 also takes place step-by-step, with spring step p_ corresponding to the distance between two successive lifters. A control device for controlling the stroke factor sequence is also provided here. The objects 4 come from the fabrication machine in the axial direction of the belts or chains and are attached to the belts or chains by a receiving fish Ιό by means of a slide 13 that can be moved back and forth horizontally in the direction of arrows 14, 15. for the items 4 supplied. This receiving fish 1.6 is at the same level as the upper run of the belts or chains.

As mentioned above, the jacks can assume a position in which they are are all below the level of the upper runs of the belts, in a vertical translational movement move to a position where they are above this level. In this upper position of the vertical conveyor, a suitable device (not shown) generate a rotational movement of the carrier 9 (e.g. by half a revolution) in order to move the lifters with respect to the storage locations in the tiered store

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align, with these storage spaces selbs! are aligned in the direction of movement of the belts. In Fig. 3 the storey store may be located in an extension of the belts to the right. In this position, the jacks are moved in the direction of the arrows 7,5,8,6 , as described with reference to FIGS. A reverse half turn and a subsequent lowering in the direction of arrow 8 leads the vertical conveyor to the starting position before the new loading

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ken / The horizontal conveyor, the vertical conveyor and the control devices for controlling the movement of these conveyors are arranged on a support frame (not shown). '

The operation of the device according to the invention will now be described »

An object 4 carried by the receiving table 16 is transferred to the belts or chains 10 by moving the slide 13 in the direction of the "arrow 14. The object is stopped by two first catches 11 located on the belts. The feed of an object controls the advancement of the belts and chains 10 by at least one step p., whereby a new receiving space for an object becomes available on the belts adjacent the receiving table 16. The pusher 13 is then returned in the direction of the arrow 15, which enables that a new object 4 can be brought onto the receiving table 16 and this object can be transferred onto the belts by pushing the slide 13 in the direction of arrow 14 again Step ρ -, / £ 81 The result is that the objects are brought closer to the lifters for their loading. 3 on the right controls when an object arrives above a lifter 3 after it has been advanced by a certain number of steps p., ~ The carrier 9 is in its lowest position, in which all the lifters are below the level of the belt - a suitable device the lift of the lift by © inen step p ", which has the lifting of the object 4, so that this on the

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top lifter 3 rests and of the belts or chains 10 and their drivers Il comes free, and that a renewed advance by at least one step p. and the Loading the next lower lifter 3 with the following object by lifting it this next lower lifter by one step p_ becomes possible. The work sequence repeats itself until all lifters 3 are fully loaded,

During normal operation, an object is fed onto the belts by means of of the slide 3 the advancement of the belt by a number of letters p. which is suitable for bringing the object over the lifters 3 immediately. A The second object is only fed to the belts by the pusher after a lifter 3 has been loaded with the first object.

During the loading of the storey storage facility, i.e. in a period when the jacks are no longer in their loading position between the belts, follows the feeding of an object onto the belts or chains 10 by means of the slide 13 is advanced by a 'step p, the belts only in a slower manner Timing sequence so that the objects are temporarily on the belts until the return of the Lifters are cached and no object is in the vertical conveying area the lifter arrives. This possibility of temporary intermediate storage of objects on the belts is very advantageous in that it enables that the arrival of the objects 4 on the receiving table 16 at the exit of the Fabfikationsmaschine during the unloading of the lifters or the loading of the Floor storage does not need to be interrupted.

The cached items can be reabsorbed very quickly, though the vertical conveyor is available again at the end of the horizontal conveyor, by advancing the belt by one step ρ ^ with an increased cycle rate and followed by a lift by one step p "the lift, and this without Objects are fed through the slide 13. Not carrying objects by the slide 13 at the exit of the manufacturing machine is less

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Duration, because the belts are advanced at increased speed to absorb the intermediate bearing, and do not noticeably reduce the output of the machine. This interruption is by far shorter than the interruption that was required in a device without the possibility of intermediate storage on belts between the unloading of the jack and the loading of the storeys with the objects.

Alternatively, each lifter can be loaded with two or more objects with the device according to the invention. For example, two objects can be placed one after the other on each lifter, with two successive drivers 11 forming half-steps P _{1 of} the advance of the belts or chains 10. The feeding of an object onto the belts or chains 10 by the pusher 13 is followed by a half step p. of the belts 10, and the loading of each lifter is achieved by advancing the belts 10 by one step, ie by a feed distance corresponding to 2 ρ. , bringing two objects over the lifter, and then lifting each lifter by one step p ~,

As mentioned above, the device enables one and the same lifter to be loaded with a large number of objects, the lifter being of course correspondingly too is sized.

Of course, as many devices can be used together as there are the desired performance requires, with these devices in the direction perpendicular to the arrows 7 and 12 are to be arranged side by side and controlled synchronously.

In particular, the device according to the exemplary embodiment described below enables the horizontal juxtaposition of fifteen objects 4 soap by side in the direction perpendicular to arrows 7 and 12.

In order to clarify the results that can actually be achieved with the invention, in the following with reference to FIGS. 4 and 5, an example of a preferred practical embodiment an arrangement 10 (means for horizontal conveying and storage) and 9 (means

for vertical conveying and storage), explained / whereby the means 9 and 10 dis are essential Form parts of the device shown,

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As shown in FIG. 4, the means comprise horizontal conveying and intermediate storage sixteen parallel, identical double elements each made up of two metal chains 10 arranged side by side with soap, which synchronously move in the direction of arrows 24 by means of a conventional Schritfanrriebs (not shown) are driven, which on a transmission device with sixteen double elements, each two arranged side by side Sprockets 22 acts, which are penetrated and driven by a common shaft 23 are. For simplicity, only a single chain and sprocket are shown in FIG instead of the corresponding double elements 10 and 22 shown.

The objects to be conveyed, which in the embodiment described are approximately square Ceramic plates 4 with an edge length of 10 cm are on the chains 10 carried by two of their 'parallel edges. On the chain elements 10 are drivers 11 attached, the five separate transverse tracks along the track of the upper frums of the chains Α, Β, Ο, Ο and E limit which are parallel to each other and perpendicular to the path of the Run through the upper frums of the chains. Each of these transverse webs can be placed side by side in one Row fifteen ceramic plates to be conveyed carry. The breadth dimension in direction the arrows 24 of each parallel transverse path practically corresponds to the width of the step ρ ^ when feeding the chains 10.

The plates coming from the manufacturing machine in the direction of arrow 20 and arranged plates are arranged on the receiving fish 16 in a series of fifteen side by side, as shown in Fig. 4. In the example shown! For example, the loading lifters or shovels 3 (not shown in FIG. 4) can each accommodate two plates 4, the soap are arranged side by side and aligned on each lifter in the direction of movement of the chains 10. The panels are therefore placed on the lifters to the right of the transverse tracks D and E located downstream as shown in FIG.

Between the chain elements carrying the plates at one of the lateral ends of the three upstream transverse webs A, B and C are common pickups for pinning Arranged by plates, soft the actual sensors 21 and the control boxes 27 include. The signals from these transducers are, as high to show, for steering the arrangement formed by the chains 10 and the lifters is required.

The arrows 25 and 26 show the direction of movement when moving the jack the chain conveyor up and the direction when feeding the stored

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Plates on the lifters to the storage spaces in the storey. The devices for performing these operations are shown in FIG. It is found that in the embodiment shown, unloading the disks from the lifters into the storage locations does not require rotation of the lift assembly as it is realized in the embodiment described above.

Reference is now made to FIG. In this figure it is the one that carries the jacks Chassis denoted by the reference numeral 31. The jacks, not shown, themselves are attached under this chassis. The arrangement with the lifters comprises 12 different ones Levels each side by side with 15 lifters each can accommodate two plates. The total capacity of the arrangement is therefore

in this embodiment 360 plates. The chassis 3 Iy which is the lifter assembly can make the following movements:

1) vertical, step-by-step ascent in the direction of the arrows 32. These movements correspond to the successive picking up of the panels by the lifters. The basic movement indicated by the arrow 32 practically corresponds to the already mentioned step p ". The movement of the step-by-step ascent according to the arrows 32 is generated by a device with a ram 33, which is moved by a hydraulic cylinder 34 and cooperates with a gear 35 which sets a shaft 36 in rotation. The shaft 36 in turn drives a device with a pulley or a chain wheel 37 and a rope or a chain 38. This device generates the stepwise upward movement of the side beams 39 of the chassis or support frame 31. To the side beams 39, racks 21 are connected or in one piece which cooperate with pawls 40 in order to prevent the arrangement 31 to 39 from falling back in the event of a very absolute rise. A counterweight 42 facilitates the rise of the arrangement with the jacks loaded by the plates, the support frame 31 and the lateral supports 39 and enables the power to be installed in the cylinder 34 to be kept small.

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2) vertical rise in the direction of arrow 43. This movement enables the release of the once loaded jack from the area of the chains 10. The rise movement is generated by hydraulic cylinders 44, the piston rods 45 of which are suitable parts of the lateral supports 39 of the support frame 31 _# which the Jack carries, push up,

3) horizontal transfer in the direction of the opposite arrows 46 and 47. These movements correspond to the approaching and emptying of the lifters before and after the unloading of the disks placed on the lifters into the storage spaces or "gazettes". The horizontal movements are generated by double-acting hydraulic cylinders 48 which act on the support frame 31, which can roll with rollers 49 on roller tracks 50 which are fixed to the lateral supports 39.

4) vertical lowering in the direction of arrow 50. This movement brings the upper lifters of the assembly back under the transverse tracks D and E of the chain conveyor in a waiting position for renewed loading of plates. The corresponding movement is generated by retracting the hydraulic cylinders 44. During this process, the plunger 33 of the cylinder 34 is withdrawn from the gear 35, and small cylinders 51, which are supported on arms 52 fixed on the pawls 40, disengage these pawls from the racks.

Stroke end contacts 60 to 64 act with stops fixed on the support frame 31 and the lateral supports 39 together and thereby automatically control the beginning and end any movement in the direction of arrows 32, 43, 46, 47 and 50.

In the following the operation of the embodiment according to FIGS. 4 and 5 will now be described.

A row of 15 plates is coming from the manufacturing machine onto the receiving table 16 formed, the operating speed of the manufacturing machine for the plates is so great that such a row is formed in 4 seconds. the successive rows of plates are from the receiving table 16 on the first

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Transverse path A of the chain conveyor is transferred by means of a pusher 13 according to FIG. 3 (not shown in Figs. 4 and 5). Two cases can arise:

1st case: The arrangement with the lifters for the plates is available and in their Position for picking up the panels at the downstream end of the chain conveyor, with a row of lifters under the downstream traverses D and E of the chain conveyor. The .transverse tracks A, B, C, D and E of the chains of the So sponsors are free.

1-1 A first row of panels is fed to cross web A, and the chains walk one step p. further, taking up the first row α of the plates the transverse web B transferred. There will then be a second row b of panels on top of that Shooting table formed. All of these operations take place within four seconds instead of.

1-2 The second row of panels b is then transferred to the transverse web A, which is on the New is available. The chains run three steps p., Further. The rows of plates α and b are transferred in this way to the transverse tracks D and E, where it is taken away one step by the upward movement of the jacks will. These processes also take place and will take place within four seconds followed by operations according to 1-1. So the cycle is over. The five cross tracks A, B, C, D and E are free again and a new row of plates c is in Brought waiting position on the receiving table 16. So the cycle can start again.

2nd case: The elevator arrangement is not available for taking over plates at the end of the conveyor, but is busy with transferring the plates that have been previously picked up into the storage locations or "gazettes". This operation of loading the storage locations requires an unavailability time interval of about 12 seconds for the elevator assembly. The device is designed so that the

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The discharge sequence of the panels from the manufacturing machine is not disturbed or slowed down becomes, which is 15 plates per 4 seconds in this embodiment. To do this, the basic processes are linked in the following way:

2-1 A first row of plates α in waiting position is transferred to the cross track A of the conveyor, and the chains advance by a step p _T , thus clearing the cross track A and transferring the plate row α to the cross track B. These processes take place within 4 seconds takes place, and a second row of disks b is formed on the receiving table 16. -

2-2 An identical work sequence as described in 2-1 is carried out with rows of plates b and c performed. The duration of these work sequences is also 4 seconds.

2-3 The row of panels c is transferred to the cross web A, which has become available again, this process also takes 4 seconds.

2-4 Now that 12 seconds have passed, the loading lifters or shovels have returned to their pick-up position to the right of the transverse tracks D and E. The chains take a step p. further, and the row of plates d is transferred to the transverse path A that has become free. The chains step anew by one step p. further, and the jacks remove the rows of plates a, b from the chains. The chains now take two steps p. and the next lower lifters take over the rows of plates e, d. The total time required for the operations after 2-4 is also 4 seconds. The 5 transverse tracks A, B, C, D and E are cleared and a new row of plates e is formed on the table 16. The plaite feed can now be continued as described in the first case »

The entire sequence of movements of the cycles described is determined by the various Pickups for sensing the presence of plates and through the various Stroke end contacts and the stops interacting with them are controlled automatically.

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This fully automatic control enables in particular the described embodiment realized increased clock sequence. It can be seen that the device according to the invention is designed so that it is in enables automatic and regular delivery of plates in all cases, the mi f increased and predetermined speed from a FabrtkatTonsma-, machine come.

Expectations;

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Claims (7)

Expectations 1. A device for conveying articles by precharging of jacks, characterized by a supporting frame, a horizontal stepping conveyor (10) and a vertical stepping conveyor (9), wherein the progression of the horizontal step conveyor by at least one step (p.), The increase of the vertical Step conveyor triggers by one step (p ^), so that a step by step from the horizontal step conveyor over the lifters (3) of the vertical
Step conveyor brought object (4) is taken over and raised by the latter when it rises by one step (p_). 2. Apparatus according to claim 1, characterized in that the horizontal step conveyor comprises two conveyor belts or chains (10) with .äquidistantly arranged drivers (11) which are aligned on the two belts or chains and one with subsequent drivers Form a space for receiving an object (4) to be conveyed, the distance between two successive drivers determining the length of the conveying step (P ₁ ). _ - -U- 3 0 9 8 h 9/0 R 99 2324809 3. Apparatus according to claim Voder 2, characterized in that the vertical step conveyor comprises a vertically movable carrier (9) with equidistant floors in the form of shovel-like lifters (3), and that the distance between two successive floors is the length of the vertical conveying step {pJ ) determined. 4. Device according to one of claims V to 3, characterized in that that the arrangement is made so that the feed sequence of the horizontal Step conveyor 00) and the stroke sequence of the vertical step conveyor (9) is synchronized are controlled. 5. Device for the successive loading of a lifter with several Objects according to one of Claims 1 to 4, characterized in that that the advance of the horizontal step conveyor (1O) by dividing the Steps, where each step fraction corresponds to the distance between the drivers (U) corresponds to the number of broken steps he equals the number of on each Lifter: (3) corresponds to the objects to be deposited (4) and the loading of the vertical Step conveyor (9) by advancing the horizontal step conveyor by one step followed by an increase in vertical step demand to happen one step. 6. Device according to one of claims 1 to 5, characterized in that the combination of the successive feed steps of the horizontal step conveyor (VO) and the successive lifting steps of the vertical step conveyor (9) enables continuous emptying in a regular predetermined sequence of objects that the horizontal Step conveyor are fed. 7. Apparatus according to claim «S, characterized in that the controller the feed steps of the horizontal step conveyor (VO) and the lifting steps of the vertical step conveyor (9) happens completely automatically. j '■■ * "■ 309849/0899