SU755595A1 - Krivovyazyuk's feeding and discharging apparatus to punghing press - Google Patents

Description

The invention relates to the manufacture of products from polymeric materials and can be used in shoe factories for cutting out sheet rubber, cardboard parts such as soles, heels, heels and insoles. _five

A device for feeding and unloading to punching presses is known, comprising a support mounted on the base by means of semi-axes with a movable guide carriage with cutters rotatable in a vertical plane, a pull-out mechanism in the form of floor-mounted rotary support plates with ejector on the columns movable transporting plates, mounted on the last tables for finished products, table lifting mechanisms, horizontal guides for carriages, carriage movement mechanism Kinematically associated mechanism for moving the conveying plates bearing rotation mechanism with cams, stvuyuschimi 20 interacts with the associated ejection roller mechanism plates [1].

The known device is permanently connected with the press and does not have independently 2

drive, and the horizontal guides are fixed on the bottom thrust plate of the press. By virtue of this structural embodiment, the device cannot be used with different types of presses.

The aim of the invention is to provide the possibility of servicing the device presses of various types.

To achieve this goal, a known device for feeding and unloading to cutting presses, comprising a support mounted on the base by means of semi-axes, rotatable in a vertical plane with moving along its guide carriages with cutters, an ejection mechanism in the form of floor-mounted ejector plates with ejector on the columns the basis of transporting plates, mounted on the last tables for finished products, table lifting mechanisms, horizontal guides for carriages, mechanics m moving carriages cinematically associated mechanism for moving the transporting plates, steering gear bearing with cams interacting with svya755595

The rollers connected with the plates of the ejection mechanism are provided with articulated arms on the base with the possibility of rotating in the horizontal plane with brackets on which the horizontal guides for the carriages are installed, and a drive kinematically connected with the mechanism for moving the carriages and the mechanism for rotating the support.

The base is equipped with rollers. Copiers are made in the form of profiled disks mounted on the half-axes that can be rotated and provided with spring-loaded hinged supports. Tables are made with longitudinal grooves, and movable combs and fences are installed on the transporting plates.

FIG. 1 shows the proposed device; in fig. 2 - swivel bearing; in fig. 3 - ejection mechanism when ejecting waste; in fig. 4 - the same, when pushing products.

The device for feeding and unloading contains a movable base 1 with rollers 2 mounted on screws 3 and with screw supports 4. On base 1, brackets 5 and 6 are mounted for rotation in a horizontal plane on which horizontal guides 7 with hinged end sections are installed a and spring-loaded lugs 8 and forks 9. For fixing the given positions of the brackets 5, 6 they have bolts 10 that interact with threaded sockets b, made in the base 1. On the base 1 by means of two half-axes 11 mounted in the vertical plane of the support 12. Support 12 has guide grooves 13 (Fig. 2), made at the level of the guides 7, and columns 14. The support is mounted on the ejection mechanism, which is made in the form of floor located on the columns 14 of two pairs of plates 15, 16, movable relative to the last locking plates 17 with locking holes in the retainers 18 and ejector plates 19, which are freely installed in the holes of the plates 15, 16. The ejectors 19 are made in the form of rods with annular belts interacting with the holes in the locking plates ting 17.

To move the locking plates 17 on the support 12 mounted spring-loaded squeezing levers 20, interacting with installed on the base 1, the stop 21 and the swing stop 22, equipped with a handle 23.

For the implementation of the forced additional movement of the plates 15, 16 of the ejection mechanism when pushing waste each plate is connected with guide rods 24, movably mounted on a rotary support 12 and equipped with rollers 25.

To implement the forced lifting of the corresponding plate with ejector, to push out the waste with a fixed and movable support 12 on the semi-axes 11, copiers are installed in the form of profile disks 26, which interact with the rollers 25 and are equipped with spring-loaded hinges.

In addition, the support is equipped with spring-loaded lugs 28, designed to hold the plates 15 and 16 in the initial position associated with the levers 29, which interact with the fixed on the base 1 paired swivel lugs 30 and spring-loaded hinge lugs 27 of the disk 26. Paired stops 30 are equipped with a squeezing roller 31.

In the guide grooves 13 of the rotary support 12 on the rollers are installed carriages 32 and 33 (Fig. 1), having openings g (Fig. 3) for the passage of the ejectors 19. On the carriages there are removable plates 34 with cutters 35. Carriages 32 and 33 have hinges 36 for connection with the rod 37 of the carriage movement mechanism. The carriage movement mechanism also includes endless chains 38 connected with a bar 37, vertically located shafts 39 passing through brackets 5 and 6, on which there are driving sprockets 40 chains 38, cylindrical gears 41 and splined connections 42 connected to each other by a spring-loaded switching lever 43 connecting the vertical shafts 39, the intermediate shaft 44 with bevel gears 45 and the bevel gear gear 46 connecting one of the vertical shafts 39 to the output shaft 47 of the drive. The drive includes an electric motor 48, a gear 49 connected to the output shaft via a gear 50. The drive shaft of a bevel gear gear 46 is connected to the output shaft 47 via a splined connection 51 having a spring-loaded switching lever 52 controlled by an electromagnetic coil. The rotation mechanism of the rotary support 12 is made in the form of a chain transmission system 53 and spline connections 54 and 55 connected to each other via a spring-loaded lever 56 controlled by an electromagnetic coil. From the chain transmission system 53 via a splined connection 55, a gear transmission and an eccentric chassis system (in the figures not shown) rotation is transmitted to the hoop disks 26. The device has a locking disk of the copier disk 26 connected to the spring-loaded lever 56. A friction clutch 57 is mounted on the output shaft 47 and rigidly connected to the gear wheel of the gear train 5 0

On the base 1, on the rails 58, movable transporting plates 59, 60 are installed, equipped with a mechanism πε755595

displacement, which contains reinforced on the plates of the toothed rack 61, interacting with the gear gears 41, fences 62 and movably mounted combs 63. Moreover, the fences 62 and the tops of the teeth of the combs 63 are located at the same height in the area of the cutters 35 carriages. The fence and combs are designed to prevent mixing of the stacks of finished products in the process of moving tables 64, 65 installed on plates 59, 60 with the ability to move in a vertical plane and having longitudinal grooves d for the passage of the teeth of combs 63. On plates 59, 60 there are stops 66 ( Fig. 2), alternately interacting with the squeezing roller 31. In the guides 58 there are ball locks 67 interacting with the plates 59, 60. The tables 64, 65 are inclined and have lifting mechanisms 68 equipped with electromagnetic brakes 69 for perversion of the spontaneous descent of the tables. On the transporting plates 59 and 60 there are spring-loaded hinged lugs 70, interacting with the corresponding end of the lever 43.

To regulate the vertical movement of the tables in accordance with the thickness of the workpiece on the base 1 on the opposite sides of the mounted movable lugs 17, equipped with handwheels 72 and interacting with the mechanisms 68 lifting tables. For fixing the carriages 32, 33 in the guides 13 of the support 12 in the initial position, spring-loaded latches are installed on the lateral sides of the support 12, which cooperate with stops mounted on the base (not shown in the figures).

To turn off the motor 48 is a button 73, interacting with the rod 37.

The device works as follows.

The device on the rollers 2 moves to the press for cutting blanks of sheet material and is installed in a position in which its rotary support 12 is located opposite the lower support plate 74 of the press (Fig. 1). In this position, turning the bolts 10 out of the sockets b unlocks the brackets 5 and 6 and rotates in a horizontal plane in a position parallel to the sides of the lower support plate 74 of the press. Using screws 3, the device is installed at a predetermined height, at which the horizontal guides 7 are flush with the plate 74. Then the supports 4 are lowered and the device is fixed in position before the press (Fig. 1), the stops 71 are adjusted using the steering wheels 72 with the thickness of the sheet material 75, in accordance with its dimensions, the comb 63 is adjusted and the sheet material 75 is laid on the cutters 35 of the carriage 32. The electric motor 48 is switched on and from the output shaft 47 through the spline connection 51, The first gear 46 and the intermediate shaft 44 rotate the rotation to vertical shafts 39, from which endless chain drives 38 are driven. On one of the shafts 39, with the splined connection 42 engaged, gear gear 41 rotates and, interacting with the rail 61 of the transporting plate 59, moves plate 59 along guide rails 58 to support 12 together with table 64 located on it. Simultaneously, carriage 32 with sheet material 75 is moved by rod 37 along guide grooves 13 to horizontal guides 7. When carriage 32 occupies space The barrel position in the press zone, the bar 37 acts on the button 73, which shuts off the electric motor 48 and gives the command to turn on the press ram. When the table 64 is engaged, the position under the support 12, the stop 66, interacting with the squeezing roller 31, rotates the paired pivoting stops 30 before interacting with the levers 29. When the press slide is lowered, the cutting 76 of the cutters 35 is lowered. The products 76 enter the cutter cavity 35, and the waste mesh remains between them. Simultaneously with cutting, ejection of previously cut products from cutters 35 of carriage 33 to table 65 occurs. At the moment of release of levers 29, stops 28 move away from plate 16, therefore plates 15, 16 plates 17 drop abruptly under their own weight and ejector pins 19 pushing the products 76 out of the cutters 35 onto the table 65. After cutting the products, the press ram rises, the electric motor 48 is turned on to rotate in the opposite direction, as a result of which the shafts 30 rotate in the opposite direction along with the gear gears 41, which, in borrowing with toothed racks 61, remove the transporting plate 59 from under the support 12 to the left, and with asterisks 40 chain transmissions 38, moving through the rod 37 the carriage 32 to the guides 13 of the swivel bearing 12, where it is fixed and the rod 37 abuts against the forks 9. When moving the plate 59 to the left, the stop 66 is removed from the interaction with the squeezing roller 31, with the result that the stops-clamps 18 are advanced, fixing the plates 15 and 16 in the initial position on the rotary support 12.

When interacting with the stop 71, the mechanism 68 lowers the table 64 in a step equal to the thickness of the sheet material 75.

When the plate 59 moves to the left, its articulated support 70 acts on the lever 43, the latter rotates and removes the spline joint 42 from engaging with

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gear gear 41, moving the rail 61 with the transporting plate 59, and engages a similar spline connection 42 on the second shaft 39 with the gear gear 41, interacting with the rail 61 of the transporting plate 60. The plate 59 is fixed in the initial position by the latch 67.

When the carriage 32 and the table 64 are returned to their original position, the electric motor 48 is turned off and the waste is removed from the carriage 32. And further on, this operation is carried out automatically. After the waste is removed, the electric motor 48 is turned on and through the splined connection 51 from the drive output shaft 47 the system 53 of the chain gears of the rotation mechanism of the support 12 is driven, as a result of which the support 12 begins to rotate 180 ° in the vertical plane, while the hinges 36 of the carriage 32 are disconnected from the rod 37, and the rollers 25 interact with the disks 26. From this interaction, the guide rods 24 begin to move relative to the support 12, causing the plates 15 associated with them 15, 16, the plates 17 to move along the columns 14.

At the same time at the start of rotation of the support 12, the lever 29 immediately touches the hinge support 27 of the disk 26, which pushes the support 28.

After the release of the levers 29 from the zone of interaction with the articulated lugs 27, the latter are returned to their original position by the action of springs.

When rotating the support 12 by 90 ° (FIG. 3), the carriage 32 takes a perpendicular position with respect to the tables. After completion of rotation of the support 12 to 180 ° plate 15, 16 returns to its original position, and the rollers 25 out of the interaction with the disks 26.

In this position, the carriage 32 is already at the bottom of the support together with the products in the cutters and the waste net removed, as mentioned above, and the carriage 33 is located on top of the support and is connected by hinges 36 with the rod 37. At the same time, the rollers 25 of the corresponding plates 15, 16.

From the output shaft 47 through the spline connection 51, the rotation mechanism of the support 12 is turned off and the electric motor 48 is turned off. All ejectors 19 on the plates 15 and 16 are lowered and fixed by the locking plate 17.

The device is ready for cutting from the next sheet of material that fits on the cutters 35 of the carriage 33.

The motor 48 is turned on, and from the output shaft 47 through the spline connection 51, the bevel gear pair 46 and through the intermediate shaft 44, the vertical shafts 39 are rotated. From one of the shafts 39 through the splined connection

42, the rotation is transmitted to the gear gear 41, from the interaction of which with the toothed rack 61 of the transporting plate 60, the latter with the table 65 moves to the support 12. Simultaneously with the movement of the plate 60, the carriage 33 with the sheet material 75 is moved with the help of movable chains 38 of the rod 37 along the guides 13 to horizontal guides 7. When the carriage 33 is in its working position in the zoo of the press, the bar 37 acts on the button 73, which turns off the electric motor 48 and gives the command to turn on the press ram. At this point, the table 65 takes a position under the support 12, i.e., under its carriage 32 below, and the support 66 of the transporting plate 60, acting on the squeeze roller 31, turns the paired pivoting stops 30 to interact with the levers 29, which output the stops 28 from the plate 15.

The plates 15, 16, the plates 17 drop abruptly under their own weight, and the pushers 19 pass into the holes of the plates 15, 16 and the holes r of the carriage 33. With further lowering of the plates, the ejectors occupy three different height positions. The pushers that have passed through the holes g of the carriage 33 between the cutters 35 fall below all, since the waste has been removed in advance, and nothing prevents their free movement. The pushers that have passed through the holes g of the carriage 33 in the cavity of the cutters 35 stop moving, touching the finished products 76 entrenched in the cutters. The ejectors that have passed through the holes g of the carriage 33 and have rested against the plate 32 are stopped.

The plates 15, 16 continue to descend toward the carriage 33, and the lever 20 interacts with the stop 21 and rotates by moving the locking plate 17 relative to the plate 15. In this case the plate 17 locks the locking holes in the above position in the plate 17. The plates 15, 16 continue to fall, and the products 76 are ejected from the cutters 35 onto the table 65. Simultaneously with the ejection, cutting of the products on the carriage 32 takes place.

After cutting the slider with the upper thrust plate 74 rises.

Then the electric motor 48 is turned on and the carriage 33 is returned to the guides 13 of the pivot bearing 12, where it is fixed, and the transporting plate 60 with the table 65 to the initial position, where the mechanism 68 lowers the table 65 to a step equal to the thickness of the sheet material 75.

When moving the table 65, the fence 62 and the comb 63 keep the finished products from shifting, and the tilt of the table does not give

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stacks move forward (where there is no fence).

After installation of the carriage 33 on the support 12, the electric motor 48 is turned on and through the spline connection 51 from the drive output shaft 47, the system 53 of the chain gears of the rotation mechanism of the support 12 is driven, which begins to rotate in a vertical plane through 180 °. In the process of rotation of the support, the waste is ejected in the manner described above (see Fig. 3).

Then the cycle repeats.

When cutting small items from brittle material, the waste crumbles, so pushing the latter (so that they do not fall on the surface of the cut products) must be made before the turn of the support 12 begins. In this case, the waste is automatically ejected as follows. Simultaneously with the onset of the carriage 32 from under the press on the upper guides 13 of the support by means of the lever 52 switches the spline connection 51, which connects to the drive output shaft 47 the system 53 of the chain transmissions of the support turning mechanism 12. By means of the lever 56 the splined connection 54 cuts off the half-axis 11 of the support 12 from the system 53 of chain gears, and the spline connection 55 connects to the system 53 a gear train and a system of eccentric rods. In this case, the disks 26 are fixed against rotation with respect to the semi-axes 11. The rotation is transmitted to the disks 26. When rotated, the disks 26 interact with the rollers 25, and the articulated supports 27 - with the levers 29, which press the stops 28. The plates 15, 16 rise to the carriage 32, and the stops 28 return to the starting position. The waste is ejected by the ejector 19, and then the disks 26, turning in the opposite direction, return to their original position. When this plate 15, 16 is lowered to its original position, and the lever 56 switches the spline connections 54, 55. The ejected waste is dumped, and the support 12 is rotated 180 ° in the vertical plane to the position for pushing the finished products.

When replacing the cutters with 35 cutters of another size, it is necessary to move the ejector 19 to its original position.

For this purpose, the handle 23 transfers the support 22 to a vertical position, at which it finds itself in the path of movement of the levers 20. The support 22, interacting with the levers 20 located in the lower part of the support 12 pairs of plates 15, 16, squeezes them, and

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turn move the locking plate 17 relative to the plate from the locking position to idle. The pushers 19 when turning support 12 occupy the initial position.

Next, the ejectors are transferred to the working position in the manner described earlier.

The proposed device can be used for presses of various types.

Claims (4)

Claim 1. Device for feeding and unloading to punching presses, containing mounted on the base by means of semi-axes a support pivoting in a vertical plane with movable guide carriages with cutting torches, an ejection mechanism in the form of a floor-mounted pivot bearing support with ejector on the columns, mounted on the base of the transporting plates , mounted on the last tables for finished products, mechanisms for lifting tables, horizontal guides for carriages, mechanism for moving carriages, kinematically connected A mechanism for moving the transporting plates, a mechanism for rotating the support with copiers interacting with rollers connected with the plates of the ejection mechanism, which is different in that, in order to ensure maintenance of presses of different types, it is equipped with articulated arms on the base that can be rotated in a horizontal plane. on which horizontal guides for carriages are installed, and with a drive, kinematically connected with the mechanism for moving the carriages and the mechanism for rotating the support. 2. Device by π. 1, characterized in that the base is provided with rollers. 3. Device by π. 1, characterized in that the copiers are made in the form of profiled disks mounted on the half-axes with the possibility of rotation and provided with spring-loaded hinged stops. 4. Device by π. I, characterized in that the tables are made with longitudinal grooves, and movable combs and fences are installed on the transporting plates.