JPH0444498Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a conveying device, specifically a pusher rod, more specifically, a transfer device, specifically a pusher rod, and more specifically, a transfer device, for example, a pusher rod, which is used to transport objects at a predetermined location, for example, among a plurality of objects stored in series in a furnace. The present invention relates to a conveying device having a pusher rod that moves an object to be conveyed on the exit side to the next point and also moves a subsequent object to be conveyed within a predetermined location.

(Prior Art) Conventionally, for example, in a furnace installed in the middle of a conveyor line, a plurality of objects to be conveyed are heated in the middle of the conveyor line, and the drying process is sequentially applied to each conveyed object after the drying process has been completed. The following conveyors are known for transporting the objects outside the furnace and sequentially moving the objects remaining in the furnace to the positions of the moved objects.

That is, in the conveyor shown in FIG.
A chain conveyor 102 provided in the furnace 101;
It is provided separately from the chain conveyor 103 that transports the transported objects 104 such as carts outside the furnace 101, and by overlapping the ends of both conveyors, the transported objects are moved from one conveyor to the other and taken out of the furnace 101. However, this type of conveyor requires two types of conveyor, one for inside the furnace 101 and one for outside the furnace 101, and both conveyors need to overlap at their ends. In addition, it is necessary to control the operation of transferring the transported objects between the two conveyors, i.e., to synchronize the operation of the pushers of both conveyors, which makes the system complicated, and therefore there is a problem that problems related to the conveyors tend to be concentrated at the transfer points.

In another chain conveyor shown in FIG. 5, a chain conveyor 105 is operated at a constant speed through the inside and outside of the furnace 101, and the chain conveyor 105 has a chain pusher 106 for locking the conveyed object 104.
to protrude. The chain presser 106 is the furnace 1
Outside the furnace 101, the object 104 is moved by being locked to a hook provided on the object 104, but inside the furnace 101, the object 104 is stopped by a mechanism that releases the object 104 from being conveyed by retracting it. Then, the chain pusher 106 is again protruded from the suitably dried article 104 to be latched onto the hook, and the article is conveyed out of the furnace 101. However, with this conveyor, it is necessary to provide a dedicated hook on the cart, and the same chain conveyor is used for inside the furnace 101 and outside the furnace 101. The problem was that the chain conveyor as a whole was damaged quickly and the structure was relatively complicated.

As shown in FIGS. 4 and 5, when chain conveyors 102 and 105 are used, the door 10
7, it is necessary to always provide a large opening through which the chain conveyor can pass, which poses an undesirable problem in maintaining the firing temperature.

As a conventional example that does not use a chain conveyor, a conveyor as shown in FIG. 6 is known. This conveyor consists of a furnace 10 as shown in FIG.
In place of the conveyor 103 for pulling out the conveyed object to the outside of the conveyor 1, a pusher rod 108 having a pusher 106 at its tip is provided.
08 is projected and pulled by the cylinder 109 to pull out the locked object 104 out of the furnace 101.

(Problem to be Solved by the Invention) However, in the conventional example in which the pusher rod 108 is provided, if the conveyed object 104A on the farthest exit door side to be carried out of the furnace 101 is not completely carried out to the outside of the furnace 101, the subsequent conveyed object There was a problem in that the objects 104B and 104C could not be moved by one transported object.
That is, there was a problem in that the time it takes for the object to be transported 104A to be completely transported out of the furnace 101 from its original position is completely wasted. In addition, the mechanism still remained complicated.

(Means for solving the problem) This invention is designed to move a distance that is longer than the distance to a new predetermined position to which the most conveyed object among multiple conveyed objects installed in series is moved. It has a pusher rod that moves reciprocatingly, and a plurality of pushers that are provided on the pusher rod and that lock the object to be transported when the pusher rod moves in the transport direction, and release the lock when it moves in the counter-transport direction. The distance between each subsequent pusher that locks on the second and subsequent transported objects is a distance equivalent to the length of the transported object, and the distance between the pushers that locks on the transported object closest to the transport direction and the second pusher The distance between the pusher and the pusher is shorter than twice the distance between the other pushers but longer than the distance between the other pushers, and consists of the distance to a new predetermined position to which the transported object on the farthest transport direction side is moved. equipment, provided.

(Function) The pusher rod is moved in the direction opposite to the conveyance direction of the conveyed object. Then, each pusher will not be locked to each conveyed object. Next, the pusher rod is moved in the transport direction.

Since the pusher rod moves a distance longer than the distance to the new predetermined position to which the object on the farthest transport direction side is moved, the pusher rod does not come into contact with the object while moving in the transport direction until it stops. It becomes possible to lock. Further, when the pusher rod is moved, the pusher in the most conveying direction locks with the object to be conveyed in the most conveying direction. Therefore, by moving the pusher rod, only the object to be transported in the furthest transport direction starts to move.

However, since the distance between the most conveyed side and the second pusher is shorter than twice the distance between the second and subsequent pushers, but longer than the distance between each pusher, the second and subsequent pushers move idly and the object to be conveyed is Since the second and subsequent objects do not start moving, they do not stop.

As the movement of the pusher rod further progresses, each of the second and subsequent pushers in the transport direction also locks onto each of the second and subsequent objects to be transported in the transport direction and starts moving. When the movement of the pusher rod in the conveyance direction is completed, the movement of each conveyed object to each predetermined position is completed. Then, the pusher rod moves again in the opposite direction, thereby repeating the movement in sequence.

In other words, by setting the distance between the pushers on the pusher rod so that the distance between the most conveyed side and the second one is longer than the other distances, one operation of the pusher rod can only move the object in the most conveyed direction and the other subsequent objects. It becomes possible to make the amount of movement larger than that of the conveyed object.

(Embodiment) An explanation will be given with reference to FIG. 1, which shows an outline of an embodiment of this invention, and FIGS. 2a, 2b, and 3, which show some details of the same.

Reference numeral 11 denotes a furnace, which is installed in a part of the automobile bumper conveyance line. 12a to 12d are objects to be transported on which the molded bumpers are placed, and in this embodiment, they are carts. In this embodiment, each transported object 1
The lengths of 2a, 12b, 12c, and 12d are 1200 mm. Objects to be transported 12a, 12b, 12c, 12
d is a free roller 13 in the furnace 11 and before and after it.
a, 13b. 13c and 13d are rails, and a trolley is provided inside. A push rod 14 is fixed to the trolley within the rails 13c and 13d. Putsyarod 1
4 is fixed to a chain portion of a drawer conveyor 17 which is rotationally driven by an electric motor 16. A pusher 18a closest to the transport direction is installed at an arbitrary position from the base 15 of the pusher rod 14. However, the pusher 18a is moved by the operation of the conveyor 17 a distance sufficient to transport the object 12a out of the furnace, which is 1900 mm in this embodiment. At a position 1800mm from pusher 18a, install the next pusher 18b, and pusher 1.
Pusher 18c is placed at 1200mm from 8b.
A pusher 18d is installed at a position 1200 mm from the pusher 18c. Each pusher 18a,
As shown in FIG. 2A, the pusher rods 18b, 18c, and 18d rotate about the rotating shaft 19 when the pusher rod 14 is moved in the conveyance direction, and their tips protrude and lock onto the conveyed object 12. Further, when it moves in the opposite direction, the tip rotates so that it lies flat, as shown in FIG. 2b, and does not engage with the object to be transported 12a. Reference numerals 20a, 20b, 20c, and 20d are hooks provided on each conveyed object and lockable to each pusher.

Therefore, the pusher rod 14 is
It moves in the opposite direction to the conveyance direction of 2a, 12b, 12c, and 12d. Then each pusher 18a,
18b, 18c, 18d are the respective conveyed objects 12a, 1
2b, 12c, and 12d. At this time, the pusher 18a on the farthest transport side moves 1900 mm in the opposite direction, so it moves from the hook 20a position.
It will move an extra 100mm. Next, when the pusher rod 14 is moved in the transport direction, the pusher 1
While the pusher 8a moves 100 mm, the pusher 18a stands up as shown in FIG.
Lock with a. Therefore, by moving the pusher rod 14, only the conveyed object 12a in the furthest conveyance direction starts to move. However, the distance between the most conveyance side and the second pusher is 1800 mm, which is greater than the distance of 1200 mm between the second and subsequent pushers 18b, 18c, and 18d, so the second and subsequent pushers 18b, 18c, and 18d are empty. Moving object 12
Since the objects 12b, 12c, and 12d are not locked, the second and subsequent conveyed objects 12b, 12c, and 12d do not start moving. As the pusher rod 14 moves further, each of the second and subsequent pushers 18b,
18c and 18d also engage with the second and subsequent conveyed objects 12b, 12c, and 12d in the conveying direction and start moving. When the movement of the pusher rod 14 in the transport direction is completed, the movement of each object to be transported to each predetermined position is completed. That is, the transported object 12a moves to a new position A point, and the transported objects 12b, 12c, and 12d move to the new position A.
Move to the previous conveyed object position. Then, the pusher rod 14 moves again in the opposite direction, thereby repeating the movement in sequence. That is, Pushya Rod 1
4 pushers 18a, 18b, 18c,
By setting the distance 18d between the most conveyed side and the second distance _l1 longer than the other distances _l2 and _l3 , one operation of the pusher rod 14 can move only the conveyed object 12a in the most conveyed direction and the other objects. Subsequent conveyed objects 12b, 12
It becomes possible to make the amount of movement larger than that of c and 12d.

(Effects) Therefore, in this invention, by one operation of the pusher rod, the object to be transported in the furthest transport direction can be moved by a larger amount than the other objects, and can be moved to a new movement position. Furthermore, if this invention is used for transfer from the furnace, a conveyor is not required, and damage to the conveyor under high temperatures can be avoided.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of an embodiment of this invention; Figures 2a, 2b, and 3 are partially detailed diagrams of an embodiment of this invention; Figures 4, 5, and 6; The figure is a diagram of a conventional example. 12a, 12b, 12c, 12d...Object to be transported, 14...Pusher rod, 18a, 18
b, 18c, 18d...Pushiya.

Claims (1)

[Scope of utility model registration request] A pusher rod that reciprocates over a distance longer than the distance to a new predetermined position to which the furthest transported object among multiple transported objects installed in series is moved; The pusher has a plurality of pushers that lock onto the transported object when moving in the transport direction and release the locks when moving in the opposite transport direction, and locks on the second or subsequent transported objects from the furthest transport direction. The distance between each pusher is a distance equivalent to the length of the object to be transported, and the distance between the pusher that locks on the object on the furthest transport direction and the second pusher is twice the distance between the other pushers. is short but longer than other pusher intervals, and consists of a distance to a new predetermined position to which the most conveyed object is moved.