SU5134A1 - Conveyor - Google Patents

Description

The proposed conveyor is intended for work that is performed by a number of operations associated with one common production flow, mainly for the foundry industry. When mass production of uniform castings, the conveyor is presented with the requirements here: to transfer the finished flasks from the mold; In the conveyor run i fill the molds, move the flasks j through the cooling chambers, transfer them to the place of embossing, and then deliver the flasks again to the molding machines. The task j of performing this cycle of movements has so far been resolved in two ways: either by arranging two rows of arranged flat conveyors moving in opposite directions, or by using I of one circular conveyor running along horizontal guides. Both of these methods have

the disadvantage is that the implementation of the return movement in both cases significantly reduces the useful area of the workshop. The equipment with two flat conveyors, in addition, necessitates the need for end points of the path to produce lishnuyu overload. The latter is associated with all kinds of shocks, which are of no small importance in the foundry industry, where such shocks are reflected in the strength of the forms carried. Conveyors with circular horizontal movement are also not always applicable. The radius of their curves, with large cargo sizes (flasks), must be large enough, and this often does not fit the workshop building plan. The present invention aims to provide a conveyor that, combining all the advantages of a straight flat conveyor, would eliminate the above disadvantages.

FIG. 1 of the drawing shows a side view of a proposed U1O-OH conveyor; FIG. 2 and 3 are views at different positions of the links provided with rollers, and in FIG. 4-fixture for tightening and unscrewing screws. FIG. 5 is a side view of a modified conveyor; FIG. 6 and 7 are front and top views of a link provided with rollers; FIG. 8 is a top view of the conveyor with a flask occupying a one-sided position, and in FIG. 9 is a perspective view of a hook and flask with an eye.

The proposed conveyor (Figs. 1-4) consists of a whole series of trolleys connected by a pair of endless chains 2-3. Chains are attached by their links (trolleys) 4 to the bottom of the platforms. The rails 7-8 and the channel 9-10 serve as guides for the wheels 5-6 of the trolleys. The ends of the conveyor are mounted on a pair of sprockets P, which drive the conveyor trolleys. The conveyor is equipped with a device for automatic reinforcement of objects on it (in particular, flasks). Trolleys, depending on the size and purpose of the transported items, have several U-shaped brackets 13, which are either fixed to the trolley (link) motionless, or are connected to it hingedly. A special clamping screw 14 is passed through each bracket. With the help of a steering wheel 15 mounted on its end, the screw can rotate and make a forward movement in the direction perpendicular to the plane of the link 4. With this movement, the screw presses the object 12 on it to the platform. Action of the handwheel can to be produced either directly by the worker’s hand or automatically by a locking device 16. A number of double-arm levers 17, fixed on fixed axles 18 and positioned in the direction of movement raspistera, plays the role of props for the handwheel teeth

Upon meeting, the teeth enter the clutch with the rollers 19 levers and, resting against them, turn the handwheel. The resistance force of the lever 17 is controlled by the spring 29, which is installed by the screw 20. With sufficient tightening of the clamping screw 14, the handwheel itself begins to leverage resistance. This is transmitted to the spring 29 and causes it to contract. As a result, the lever rotates and passes the handwheel in the direction of the arrow (Fig. 4). Such a locking device can be used anywhere on the conveyor path and serves both to secure and release the item on the conveyor.

In the case of applying the proposed conveyor to the foundry, the molded and assembled on the heels 21 of the flasks 12 with the roller table 22 or 23 are moved to the conveyor. According to the size of the flask, on the link 4, the beads 24 are arranged, which in this case serve as guides of the flasks. Flask can be installed on the conveyor not only from the side, but also from above. In the latter case, the brackets 13 must have a hinge joint with the trolley and, before placing the flask, are retracted to the side. Installed on the conveyor, the flask makes further movement with it. At a certain point in the path, it encounters a locking device 16, by means of which it is firmly fixed and, during the whole time of the journey, is held on a flat link 4. The flask, the approach to the pouring point, does not need, in this case, any weights, brackets and wedge x, usually used in casting. The flask, after pouring, continues to move to the end of the conveyor, together with the trolley, it turns and moves to the lower position 26. During that time, while the flask passes the lower path and goes through the ventilated basement, it cools down in the opposite direction. Flask after this goes to the place where it is necessary to make her knocking. Here, by the locking device described above, the clamping screws 14 are released, and the loosened flask, remaining between the brackets 13, rests on the roller conveyor 25, which pulls out the flask for side beading. In a similar roller conveyor, after knocking, the flask returns under the conveyor. The live rolls can also be replaced by rollers 27 and 28, fixed in brackets 13 (Fig. 3). The entrance to its nest through the brackets 13, the flask is captured by the conveyor and again clamped with screws 14. Next, the flask is carried out by the conveyor to its upper branch and from here can be returned to the molding machines.

The modified conveyor (Figs. 5-9) is intended solely for moving the casting flasks, and the following tasks of the foundry should be accomplished: delivery of the molded castings from the machines to the place of casting the molds; the movement of the flasks in the opposite direction through the cooling channel of the basement; automatic wiping and release of castings from castings and earth; Returning the flask again to the molding machine. The conveyor is a series of flat links (trolleys) 1, connected by a pair of endless chains 2. For greater reliability of the connection, especially with heavy flasks, in addition to chains, additional hinges 5 are used. The trolleys have rollers 3 running along the guides 4. Movement is transmitted from the drum 45, which, in engagement with the links, does not have a trolley in the direction of arrow 7. Each trolley has a pair of blank side walls 8, to which hook-shaped shelves 9 and hook 10 are firmly attached. form and aspolozheniem Ushkov on flasks. Between each pair of adjacent shelves 9 and 10 across the platform

The trolleys are missing. The clamping screws 16 are rotated. The screw is rotated using the handwheel mounted on one of its ends. 17. To facilitate installation and sandboxes, rollers 19 are arranged. Depending on the size of the flask, the number and location of these rollers may be different.

The flasks 21 molded and assembled in pairs using a crane, hoist or other lifting device are brought to the conveyor and mounted on its trolleys 22 (Fig. 8). In this operation, there is no need to immediately position the flask symmetrically to the axis of the conveyor 23-23. The flask must first be at one-sided position 24. At this point, it will rest on the roller 19 and the edge of the platform 21 or 20. Having established the flask in this way, it will first be released from the lifting grippers, then it will be advanced on the roller 19 towards the middle of the trolley. With such a movement, the ears 12 and 13 of the flask feed the hooks of 9 and 10 racks. Subsequently, the trolley, following in the direction of arrow 23, encounters a pair of toothed racks with spring teeth on its way. The slats engage with the handwheels 17. Leaving the conveyor moving motionless and acting on the teeth of the handwheels, the slats force the screws 16 to rotate. The latter, resting in the flasks 26 and 27, are pressed against the hooks of the 10 shelves 9. In such a fixed state, the flasks are transported by the conveyor to the place of pouring the molds. Metal pouring takes place here during the actual movement of the trolleys. In the future, the flask goes unchanged to the right end of the conveyor. Here, on a drum similar to drum 45, the trolleys, together with the flasks clamped on them, rotate 180 ° and, in the inverted position 28, the lower conveyor belt moves in the opposite direction along arrow 29. During this movement, the flasks are cooled. At some part of the path, the trolley is again met by a pair of already-described rack racks. The slats, acting on the handwheels 17, loosen the clamps. The flask, remaining on the hooks of 10 shelves 9, continues to move along with the trolley until one of its trunnions 30 meets the set guide 31 obliquely. The latter withdraws the flask from position 32 and moves it to position 33. At this moment the ears 13 is released and the flask 26, held only by the hooks 11, will turn on them, as on the loops x, downwards. Opoka 27 at this time with its ears 14 and 15 will be held on the wide ledges of the shelves 34 and 35. When inertia forces the inertia 26, it will drop to the position 36 when dropped. Thanks to the roller 37 placed on this path, the flask will receive a blow from top to bottom. Finding a casting in the flask, and with it a part of the earth, under the action of this blow, will fall down. Flask 26, carried away further by the conveyor in the direction of arrow 29, with the same roller 37 rises and moves to position 38. If the flask is closed, then manipulations with blows to the roller are repeated until it is completely free from the ground. This is achieved by arranging several rollers 37 sufficiently distant from one another. In the case of open flasks, earth is wiped on rollers 48. The frequency and shaking force here are set to any limits depending on the height of the location and the distance between the rollers. Subsequently, the flasks continue to hang on the hook x P. When the drum 45 rotates, the flasks under the action of their own weight cover one another and go to the upper branch of the conveyor again paired. Here, in any place of the way, with the help of the rollers 19 of the flask, the worker’s hand moves from the conveyor

and arrive at the adjacent tables. or roll tables to the forming machines.

The subject of the patent.

1.Transporter consisting of flat links attached to endless pivot chains equipped with rollers rolling along support rails, characterized in that flat links 4 are provided with brackets 13 with screws 14 for securing the item being transported.

2. Application to the conveyor described in paragraph 1 of the device for tightening and unscrewing the screws 14, consisting of a series of two double-arm levers 17, BopQTHo reinforced outside the conveyor and each roller on one shoulder acting on the handwheel 15 of the screw, and the other shoulder abutting in the adjustable spring 29.

3. Variation of the conveyor described in paragraph 1, characterized in that, in the case of the purpose of the conveyor intended solely for moving the casting flasks, the flat links with screws 16-15 for fixing the flasks are provided with 8-8 hooks instead of brackets -10, short shelves 9-9 and elongated 35-34, serving to support the flasks by their handles in the lower branch of the conveyor, as well as a pair of hooks 11 (Fig. 6 and 7), picking up, when the form is shifted using the guide 31 (Fig. 8) in the side of the conveyor, at the time of sliding of the flask from support.

4. An attachment to the conveyor described in clause 3, consisting of a series of rollers 48-48 and 37, located under the lower branch of the conveyor after the guide 31 and serving to release the flask from the casting and the molding earth by shaking.

FIG.

FIG. 2