CS227875B1 - Equipment for distribution of objects,especially mould boxes on the production line of the foundry - Google Patents

Description

The invention relates to the problem of separating piece pieces, in particular molding frames in a foundry production line. It is a production line with one feed path of piece objects common for several parallel arranged sampling points with the aim of continuous supply of these sampling points in automatic working mode.

There are only partial solutions in the prior art, there is a lack of a comprehensive elaboration of the whole problem, including the corresponding mechanical and control device.

These disadvantages are partially eliminated by the device for separating the piece objects, in particular the molding frames in the production line of the foundries according to the invention, characterized in that at least a first catch member with a first stop and a second catch member with a step a second stop, at least two sampling sections, each comprising at least a first cross member positioned opposite the first sampling track and fitted with a first position sensor and a second cross member positioned opposite the second sampling track and fitted with a second position sensor, and in a continuous conveyor section between the first The cross-member a of the second cross-member is a passage sensor, wherein the position sensors and the passage sensor are connected to an additional logical network.

The advantage of the piece distribution apparatus, in particular the molding frames in the production line of the foundries according to the invention, is the continuous supply of several picking points with the molding frames fed in one feed path. time blocking.

A device for distributing piece objects, in particular molding frames, in a production line of foundries according to the invention is shown in the accompanying drawing, in which FIG. 1 shows the spatial arrangement of mechanical elements, FIG. 2 shows connection of position sensors and passage sensors with logic circuits. Fig. 3 is a block connection of logic circuits assigned to individual sampling sections, Fig. 4 is a connection of command elements to logic circuits, and Fig. 5 is a blocking logic circuit.

FIG. 1 shows an inlet conveyor and a continuous conveyor Dj S _2, connected to this input via an input conveyor cross member Κθ. On the continuous conveyor D ₂ , a first catch member Mj at a first level Aj fitted with a first stop Zj and a second catch member at a second level Ag fitted with a second stop Z ₂ are successively arranged in the direction of the material flow. Fig. 1 further shows two sampling regions, wherein the first sampling portion comprises a first cross member K placed against the first collection path 2, and mounted first encoder Hj ez second cross member Kg positioned against the second collection path Q ₂ and arranged a second position sensor Hg. The second take-off section comprises a third cross-member K3 positioned opposite the third take-up path 38 and fitted with a third position sensor 34 and a fourth cross-member K3 positioned opposite the fourth take-up path and fitted with a fourth position sensor. , and the second cross-member Kg is the first passage sensor P1, in the section of the continuous conveyor Dg between the third cross-member K4 and the fourth cross-member K1, the second passage sensor gg.

The first sampling path Oj consists of a first inlet platform Vj, a first molding machine Fj, and a first outlet platform Wj. The second sampling line fig consists of a second inlet flatbed Vg, a second forming machine Fg and a second outlet flatbed ϊ ₂ · The third sampling line 2 ^ consists of a third inlet flatbed V ^, a third forming machine γ and a third outlet flatbed Wy the path S4 ee consists of a fourth inlet flatbed V4, a fourth molding machine F4 and a third outlet flatbed W4.

In the molding machines section, the command members are shown, namely the first command member Bj in the section of the first molding machine Fj, the second command member g ₂ in the section of the second molding machine F ₂ , the third command member B ^ in the section of the third molding machine F ^, a command member B ^ in the section of the fourth molding machine F ^.

The direction of the material flow is indicated by arrows.

The basic function of the device of FIG. 1 is such that piece goods, such as flasks, come in the collapsed state, i.e., the bottom frame and the top frame, on the inlet conveyor Dj, for example a roller type conveyor. From the inlet conveyor Dj, these flasks pass through the inlet cross member _KQ to the continuous conveyor Dg, for example, so that when the cross member is lifted, the flask traverses the rollers of the cross member to the level of the continuous conveyor Dg. The flask is thus in the starting position. When the other sections of the production line are emptied, the inlet cross member sinks below the level of the rollers of the continuous conveyor Dg and the flask moves in an entraining motion towards the catch members gj, kg. Upon reaching the level of the first gripping member Mj in the first level A, the flask retains the first detent 61. It is assumed that the stop Zj, Zg is coupled to a position sensor, for example a contact switch, to switch the movement mechanism of the first catch member Mj. The top of the flask is engaged, the bottom of the flask is released and advances to the second retaining member 11 ^{at the} second level Ag, upon reaching the second stop Zg is stopped or separated from the movement path of the continuous conveyor Dg, rotated and the like. The flask is thus in the latched position, the top of the flask in the latched position at the first level Aj and the bottom of the flask in the latched position at the second level Ag.

The initial equilibrium is considered to be a flask in said latched position, another flask at the level of the first take-up section, the top of the flask on the first cross member Kj, the bottom of the flask on the second cross member Kg, or the next! the molding frame at the level of the second take-up section, namely the top of the molding frame on the third cross-member K ^, the bottom of the molding frame on the fourth cross-member K ^. The further flask and the other flasks are thus in the ready position.

It is assumed that in the initial equilibrium state, the molding machines F 'are occupied.

Eg '£ 3' -4 ° F ^rmov Acima frames in the working position.

Upon completion of production of a single part of the mold frame, for example the bottom of the flask on the second molding machine Fg, the bottom is moved to the second output wagon Wg.

In the second sampling line Og, a condition arises - the need for an additional flask.

Due to the shifting of the sampling paths into the sampling sections, for example the first sampling path 2 and the second sampling path fig into the first sampling section, two operating modes are alternatively solved:

In the first operating mode, in the state of need of a further flask, for example in the second take-off path Og, the next flask from the second cross member Kg is immediately moved through the second inlet platform Vg to the second flask machine Fg.

In the second operating mode is followed by simultaneously moving said further flasks until the formation of the state - the need for further molding of the frame in the first collection path 0 ,, wherein the flask of the first cross member ₁ moves to the first input via flatbed V to the first molding machine F ,.

If, with the first cross member K ₁ and the second cross member Kg occupied, there is a need for additional flasks in the second sampling section, i.e. in the third sampling path and in the fourth sampling path 0 ^, the first cross member K ₁ and the second cross member are released. Kg in favor of this second offtake section. The bottom of the forming rim passes from the second cross-member Kg to the continuous conveyor Dg and moves in the direction of the material flow until it reaches the location of the fourth cross-member Kg, which catches it. in the direction of flow of the material until it reaches the location of the third cross member K 'by which it is engaged.

Releasing the first cross member K, and the second cross member Kg always results in the release of another frame from the retaining members, Mg.

In Fig. 2, the first position sensor g is connected to the first inlet of the first gate C, the second position sensor gg is connected to the first inlet of the second gate Cg. The first passage sensor P is connected to the first input of the first memory element, X _1, X ¹ whose output is connected both to a second input of first gate signal C _1, and secondly to the second input ² of the second gate Cg Cg.

O

Next, the first resetting input N associated with the second input x of the first memory member gj is shown.

It is assumed that the output 'C' of the first gate is connected to the actuator of the first cross-member K1, and the output 'Cg of the second gate Cg is connected to the actuator of the second cross-member Kg.

The function of the connection according to FIG. 2 is such that at the time of reaching the frame of the first cross-member Kj the signal from the output of the first position sensor H passes to the first input of the first gate Cj. of the sensor P, to the first input, i.e., the recording input of the first memory member X ', and at the time of reaching the location of the second cross-member Kg, the signal passes from the output of the second position sensor Hg to the first input.

227875 4

The signal at the first input 'χ, the first memory member X, causes the signal, i.e., the excitation of the signal of the selected logic level, at its output ¹ X, and thus the signal coming to the second input of the first gate C, and the second input c _2. second gate C _2, to put these gates to the conducting state and the signal from the first input ¹ c passes to output ¹ C, 1 PRV-1 £ ,, whom you gate signal from the first input <£ ₂ passes to the output C of the second gate ₂ C ₂ ·

The signal from the output of ^one C ₁ of the first gate £ ₁ serves to lift the first cross member K ₁ and capture the top frame, having previously passed the bottom 'of the frame location of the first sensor passage, and similarly the signal from the output "c ₂ of the second gate £ ₂ serves to lift the second cross member K ₂ and catch the bottom of the frame.

Výěe said frame capture is performed, for example, that the signals at the outputs ',, c' θ2 ^ ^{r <^ e} l FIP S.2 switch controls cross members K _1, K _2,

By applying a signal to the reset input Nj, the signal passes to the second input χ, i.e., the erase input of the first memory member X, and clears it.

FIG. 3 shows the first logic element input R, a first input of £ ^1, and the second input i ¹ i, whose output 2 is connected to first input £, the first transmission logic gate £ ,, show a second input logic element Rg with the first input ¹ £ 2 and the second input ² £ 2> whose output 'g ₂ is connected to the first input ¹ fi _{2 of the} second transmission logic element £ ₂ , etc., another input logic element R _N with the first input' ejj as is shown a second input ^ Ejp whose output% is associated with the first input of another transport logic element Sy.

The second input a, of the first transmission logic element 6. is connected to the first output of the second transmission £ ₂ £ logic element ₂ and the second input ₂ of the second transmission logic element £ ₂ is connected to the first output ¹ of the next transmission ji £ _N logic gate. In FIG. 3, the first output 'z and the second output ² £, the first transmission logic element §, unconnected second output £ ₂ second transmission logic element £ _2, etc., the second output £ μ further transmit logic element £ "is unconnected , the second input ² s of the next transmission logic ^{1.11212 w1 of the} member 61 is not connected. Also inputs E, Ep E ₂ ^'E 2' ** 'N ^{E' ga E} N P ^N logic gates thereof 8p R ..... R _{2 N} are unconnected.

However, it is assumed that the first input ^{17 of the} first input logic member R is connected to the first command member of the first sampling path 0, the second input ² E] of the first input logic member R is connected to the second command member of the second sampling path. £ ₂ etc. the first output £ ^1, the first transmission logic element £ is associated with controls engagement members Hp M2 ⁸ second output ² £, the first transmission logic gate £ 1 is connected β controls cross members K _1, K ₂ the first sampler section. The second output ² £ ₂ second transmission logic element £ ₂ is connected with control elements K cross members, the second sampler section.

The function of the connection according to FIG. 3 is such that at the time of the need for a further flask in the second sampling path 0- entered by changing the state of the second command member g ₂ , for example by pressing a button. Similarly, at time give longer needs flask in a first collection path ₁ g of the desired change of state of the first command element g _1, for example by pressing a button, the signal passes to the first input ¹ £ ₁ of the first logic gate input Ri.

For the alternative of the second mode of operation, it is assumed that the logic function of the input logic element R1 is such that only when a longer forming frame is required in both the first sampling path 0 and the second sampling path 0 _o . first .The input χ, transmit logic element further £ ₁ £ to the first output ₁ and the second output ² of the member ₁ £ £ ,.

An exemplary embodiment of the first logic element input R coupled with the commanded member S], S ₂ of the first section of the offtake versatile alternatives to both the first operating mode and a second operating mode is described in the next.

In Fig. 4, the first command member g is connected to the first input g of the first memory circuit G, the output of which is connected both to the first input of the first combinational logic circuit ₁₁ and to the first auxiliary output X1. The second command member Bg is coupled to the first input 'gg of the second memory circuit Gg, the output of which is connected both to the second input _{11 of the} first combinational logic circuit g' and to the second auxiliary output Xg. The output of the first combination logic circuit _J1 is connected to the first output of the associated X _12th The function diagram of Fig. 4 is such that the signals from the command member G ,, Bg transferred onto the recording inputs 'gp' gg memory circuits 2 _1, Gg, which is entered by energizing those memory circuits.

The signals thus written pass to the auxiliary outputs X1, Xg. For the alternative of the first operating mode, the auxiliary outputs X1, Xg are connected to the cross-member controls g1, Kg, respectively, according to the order index.

The signals from the outputs of the memory circuits G1 are then logically added to the first combination circuit, and the resulting signal is transferred to the first associated output Xjg. The output X g is connected to the control elements gripping member G ₁ GG and said resultant signal releases these retaining members. For the alternative of the second operating mode Are auxiliary outputs J ₁ ,

Xg associated with controls cross members gg ,, K, both according to the index sequence and the corresponding signals to release these cross members K ₁ kg · first sampling segment

2 *

By applying a signal to the lubrication inputs g ₁ , gg, the memory circuits 2 ₁ , Q _{2 are} deleted.

Due to the possibility of double cross members to the release of ₁ kg, namely, the first sampling portion and, secondly, for the second sampling section is further řeěeno interlock during the pending release.

FIG. 5 is a third auxiliary output Yj connected to first input "and the first locking logic circuit U ,, fourth auxiliary output X ₄ is connected to a second input of this circuit, the output 'x of the first memory element X is connected to the third input of this circuit, the first auxiliary input L, is coupled to the fourth input of the circuit.

A blocking circuit U is considered to be a logic closure circuit that operates such that a signal that arrives at a first input group comprising a first input a, and a second input a, before the signal arrives at a second input group comprising a third input _{and a} fourth input the input goes to the first output u and maintains this output for the duration of the first group of inputs in terms of logical sum, and likewise the signal that arrived at the second group of inputs in time before the signal arrives at the first group of inputs output while the second group of inputs is energized in the sense of a logical sum.

It will be appreciated that the signal at the first output carries the priority of releasing the cross members K1, Kg for the first section, and the signal at the output U carries the priority of releasing these cross members K, Kg for the second section.

2

The corresponding connection of the outputs U1, U1, for example, constitutes a blocking of the function of the controls of the cross-members K1, Kg for the duration of the transition process until further molding frames are captured.

Another application of the device for distributing piece articles, particularly flasks foundries in the production line of the invention consists in this embodiment, the position sensor gg g ,, that the sensor is associated to a mechanical stop in one constructional unit, and the output of the first passage sensor ₁ is directly £ or via an additional logic circuit connected to the actuators with said stops. Upon passing the bottom of the flask through the location of the first passage sensor P1, when the second sampling section is already filled with the flasks, the output signal of this passage sensor P converts these stops into a standby position, i.e. into the path of the flasks. When the flask is moved to the stop, the flask is first indicated by a built-in, for example contact position sensor, thereby raising the associated cross member and gripping the flask, and secondly, the frame is additionally caught by the stop. This additional engagement is particularly important in order to achieve a perfectly accurate position of the flask in the axis of the respective sampling path.

The connection to the distribution of piece pieces, especially molding frames in the foundry production line, is applied first of all in the mentioned lines, but it has a wider application in the division of piece pieces into sequentially ordered collection sections.

Claims (7)

Apparatus for separating pieces, in particular molding frames, in a foundry production line, characterized in that at least a first retaining member (Mp fitted with a first stopper (zp and a second retaining member)) is arranged on the continuous conveyor (Dg) Mg) fitted with a second stop (Zg), at least two sampling sections, each consisting of at least a first cross member (K ₁ ) opposite the first sampling path (0,) and fitted with a first position sensor (H,) and a second cross member (Kg) positioned opposite the second sampling path (Og) and fitted with a second position sensor (Hg), and in the continuous conveyor section (Dg) between the first cross-member (K1) and the second cross-member (Kg) is a first passage sensor (Pg). ), wherein the position sensors (H ₁ , Hg) and the passage sensor (P 1) are connected to an additional logic network. 2. Device according to claim 1, characterized in that the first position sensor (H) is connected to the first input ⁽¹ C1) of the first gate (C), a second position sensor (Hg) is connected to the first input ⁽¹ c2) second the first passage sensor (P1) is connected to the first input ('x') of the first memory member (xp, whose output ( ¹ xp) is connected to the second input ( ² cp of the first gate (C1)), and second and second inlet ( ² Cg) of the second gate (Cg), the first gate outlet (C ₁ ) being connected to the first cross member (K1), and the second gate outlet (Cg) being connected to the second actuator cross member (Kg). Device according to claim 1, characterized in that the first command member (Bj) of the first sampling path (op is connected to the first input ( ¹ r,) of the first input logic member (Rp, the second command member (Bg) of the second sampling path (Og) ) is coupled to the second input ( ² r,) of the first input logic element (Rp, whose output (^ R,) is connected to the first input ('sp' of the first transmission logic element (S1)), the second input ( ² s,) the beer transfer logic element (S1) is connected to the first output ( ¹ Sg) of the second transfer logic element (Sg), the first output ( ¹ sp of the first transfer logic element (S1) is connected to the gripper controls (M ,, Mg), the second an output ( ² sp of the first transport logic element (sp is connected to the cross-member controls (K, Kg) of the first take-off section), and a second output ( ² Sg) of the second transmission logic element (Sg) to the cross-member controls (K i, K i of the second sampling section). 4. Apparatus according to claim 1, wherein said first command generator (B) is connected to the first input ⁽¹ GT) of the first storage circuit (C1) whose output is connected both to the first input ⁽¹ jp of the first combination logic circuit ( Up and, on the other hand, the first auxiliary output (Yp), the second command member (Bg) is coupled to the first input ('gg) of the second memory circuit (Gg), whose output is connected to the second input ( ² jp of the first combinational logic circuit) and a second auxiliary output (Yg), and an output of the first combinational logic circuit (up is coupled to the first associated output (Y12)). Device according to Claims 1 and 4, characterized in that the first auxiliary output (Y ₁ ) is connected to the control element of the first cross-member (K 1), and the second auxiliary output (Y ₂ ) is connected to the control element of the second cross-member (K). Kg). Device according to Claims 1 and 4, characterized in that the first associated output (Y, ₂ ) is connected to the controls of the cross members (K ₁ , K ₂ ) of the first sampling section. 7. Device according to claim 1, characterized in that the third auxiliary output (Y ^) is connected to the first input ('u') of the first interlocking logic circuit (Uj), the fourth auxiliary output (Y ^) is connected to the second input (^) of this circuit, the output ('x,) of the first memory member (X ₁ ) is connected to the third input (λι,) of this circuit, the first auxiliary input (L ₁ ) is connected to the fourth input (^ u,) of this circuit .