JPH0442056Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is designed to adjust the height of the board conveyor so that soldering can be performed with the claw-shaped board support holding the carrier. This invention relates to a carrier-less automatic soldering device that can adjust the height of a conveyor formed in a conveyor.

(Prior art and its problems) Conventionally, carrier-less automatic soldering equipment
The printed circuit board is directly held between endless claw-like board supports and soldered. That is, in the conventional soldering apparatus of this type, the distance between the sandwiched substrate and, for example, the solder liquid level in the solder tank is set in advance and cannot be arbitrarily changed during use.

As a result, conventional devices of this type require the use of carriers, such as when soldering deformed boards or when soldering multiple small-area boards at once. There was a disadvantage in not being able to do so.

(Technical Problem of the Invention) The present invention has been proposed in order to solve the problems that such conventional devices have.

Therefore, the technical problem of the present invention is to form the claw-shaped board support so that it can be soldered while holding the carrier, and thereby limit its use depending on the type and external shape of the board to be soldered. An object of the present invention is to provide a carrierless automatic soldering device which is free from soldering.

(Means for achieving the task) In order to achieve the above task, this proposal adopts the following technical measures.

That is, in the present invention, a pair of height adjustment mechanisms for adjusting the height of the conveyor in the axial or longitudinal direction of the conveyor are provided in parallel, and the height adjustment mechanisms are fixedly installed on each side of the conveyor. A pair of base bodies, a pair of vertical rods whose lower ends are fixed to protruding portions of the base bodies, a pair of guide portions that guide the vertical rods, and a vertical rod protruding from the upper surface of the guide portions. a pair of operating rods whose lower ends are pivotally connected to the upper portions of the rods;
A horizontal connecting rod is provided, one end of which is pivotally connected to the body of the operating rod, and the other end of which is pivotally connected to the body of the other operating rod. The lower end of the operating rod is provided with a support that is fixedly fixed to the holder and locks the lower surface of the protruding portion, and the lower end of the operating rod rolls on the upper surface of the guide portion to smoothly rotate the operating rod. At least one of the pair of operating rods is provided with a handle for rotating the operating rod and a stopper for preventing the elevated conveyor from descending. be.

(Operation of the invention) In the device of the present invention having such a configuration, when the operator pulls the handle formed on the operating rod toward the user, for example, the vertical rod is guided by the guide portion and rises. In this case, since the vertical rod and the base fixed to the conveyor are fixed, the conveyor itself rises in conjunction with the rise of the vertical rod. For example, when the operating rod is in the upright position, the stopper prevents the conveyor from descending. In this case, since the position of the claw-shaped board support is higher due to the rise of the conveyor, the carrier can be held between the claw-shaped board supports and the soldering work can be performed.

When the stopper is removed and the operating rod is rotated, for example, backward, the vertical rod is guided by the guide portion and descends downward. Then, the conveyor itself, which is formed integrally with this vertical rod, also descends, and then the lower surface of the projecting part of this conveyor is locked to the support body,
It returns to its original position. Incidentally, it is preferable that the operating levers and the like be operated simultaneously for each height adjustment mechanism.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

1 is a height adjustment mechanism that adjusts the height of the conveyor 2. In this embodiment, a pair of height adjustment mechanisms 1 are provided in parallel in the width direction of the conveyor 2, as shown in FIG.

The height adjustment mechanism 1 described above includes a pair of base bodies 4 fixed to each side of the conveyor 2 with, for example, stoppers 3;
A pair of vertical rods 6 whose lower ends are fixed to the horizontally protruding protruding portions 4a of the base body 4 by, for example, fixing rods 5, and a pair of guide portions 7 that guide the vertical rods 6;
Further, the upper part 6a of the vertical rod 6 protruding from the upper surface 7a of the guide portion 7 is provided with a pair of operating rods 9 whose lower ends are pivotally connected to a shaft 8, and a horizontal connecting rod 10. There is.

The guide portion 7 is fixed to the upper part of the column 11 that supports the conveyor 2 by a connecting member 12, and the support 7 that locks the lower surface of the protruding portion 4a.
b.

The operating rod 9 is formed, for example, in the shape of a U-shaped frame piece, and each of its open lower ends rolls on the upper surface 7a of the guide portion 7 to rotate the operating rod 9. A smoothing roller 13 is provided.

Further, at least one of the pair of operating rods 9 is provided with a handle 14 for rotating the operating rod 9 and a stopper 15 for preventing the conveyor 2 from descending after being raised.

In this embodiment, the stopper 15 has a spring 15b housed in a cylindrical body 15a that projects horizontally from one side of the operating rod 9, and the spring 15b causes the tip 15d of the operating piece 15c to move. It is formed so as to press against the circumferential surface of the vertical rod 6 at all times. When the operating rod 9 is erected, the tip 1 of the operating piece 15c
5d is formed to fit into a recess 6b formed in the vertical rod 6.

One end of the connecting rod 10 is pivotally connected to the body of the operating rod 9, and the other end is pivotally connected to the body of the other operating rod 9, and in this embodiment, the length can be adjusted. It is formed in a turnbuckle type.

Reference numeral 16 denotes a coil spring that is fitted into the vertical rod 6 and constantly presses and urges the base 4 downward. Again 1
7 is a claw-shaped substrate support, 18 is this substrate support 1
7 is a printed circuit board sandwiched between the two.

Next, the operation of this embodiment will be explained.

First, the operator pulls the handle 14 formed on the operating rod 9 toward the user, for example. Then, the vertical rod 6 becomes
It is guided by the guide section 7 and ascends. In this case, the conveyor 2 is formed integrally with the vertical rod 6 via the base 4, so when the vertical rod 6 rises, the conveyor 2 itself rises. and operating rod 9
is operated to the upright position, as shown by the chain line in FIG.
The tip end 15d of the conveyor 2 is fitted into the recess 6b, and as a result, the conveyor 2 is held in a raised state. Incidentally, when pulling the operating rod 9, the operator preferably operates the operating rods 9 of the respective height adjustment mechanisms 1 at the same time.

When the conveyor 2 is pulled up in this way, the position of the claw-shaped substrate support 17 is changed to the position of the conveyor 2.
It will be positioned higher as the value increases. That is, in FIG. 4B, since the position of the board support 17 is raised by a distance h, the operator only has to hold the carrier 19 between the board supports 17 and perform the soldering work.

In addition, when such a carrier 19 is not used, the operator first moves the head 1 of the above-mentioned operating piece 15c.
5e outward with your fingers, and connect the operating rod 9 and the vertical rod 6.
release the engaged state. Next, the operator rotates the operating rod 9 backward, that is, to the left in FIG. Note that these operations are preferably performed simultaneously for each height adjustment mechanism 1, similar to the pulling operation of the operating rod 9.

Then, when the operating rod 9 is rotated in this way,
The above-mentioned vertical rod 6 descends downward, and this vertical rod 6
In conjunction with this, the conveyor 2 itself also descends. Then, the lower surface of the protrusion 4a is engaged with the support 7b, and the conveyor 2 returns to its original position. That is, in this case, the substrate support 17 is now lowered by a distance h, and as a result, the substrate 18 is directly held and soldered by the substrate support 17, as shown in FIG. 4A. This is the state in which the expression is used.

In the above, the height adjustment mechanism 1 is as follows:
In the above example, it is provided in the width direction of the conveyor 2, but the present invention is not limited to this, and for example, the conveyor 2 is provided in the width direction.
A pair may be arranged parallel to each other in the longitudinal direction.

Further, in the present invention, the height of the conveyor 2, that is, the height of the substrate support 17, can be adjusted by using a shaft 8, which pivots the operating rod 9 and the vertical rod 6, as shown in FIG.
This may be done by changing the position of. 6
C designates a plurality of holes through which the shaft 8 is inserted, which are formed in the vertical rod 6 along its longitudinal direction.

(Effects of the invention) The present invention is configured such that the height of the conveyor can be adjusted by a pair of parallel height adjustment mechanisms.

Therefore, if the device of the present invention is used, the soldering work can be performed using a carrier, and as a result, the use of the device is not limited by the type or external shape of the board, which is an excellent practical effect.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view showing the main parts of the device, Figure 2 is a partially cutaway front view of the main parts of the device, and Figure 3 is a part showing an example of the arrangement of the device. FIG. 4A is a sectional view showing the position of the carrier-less substrate support, FIG. 4B is a sectional view showing the carrier in use, and FIG. FIG. 2 is a partially cutaway side view showing an example. In the figure, 1 is a height adjustment mechanism, 2 is a conveyor, 4 is a base, 4a is a protruding part, 6 is a vertical rod, 6a is the upper part of the vertical rod, 7 is a guide part, 7a is the upper surface of the guide part, 7b
1 is a support, 9 is an operating rod, 10 is a connecting rod, 11 is a column, 13 is a roller, 14 is a handle, and 15 is a stopper.

Claims (1)

[Scope of utility model registration request] A pair of height adjustment mechanisms for adjusting the height of the conveyor in the width direction or the length direction of the conveyor are provided in parallel, and the height adjustment mechanism is connected to a pair of bases fixed to each side of the conveyor. , a pair of vertical rods whose lower ends are fixed to protruding portions protruding in the horizontal direction of the base, and a pair of guide portions that guide the vertical rods;
a pair of actuating rods whose lower ends are pivotally connected to the upper part of a vertical rod protruding from the upper surface of the guide; one end is pivotally connected to the body of the actuating rod, and the other end is the body of the other actuating rod; and a horizontal connecting rod pivotally connected to the conveyor. A rotor is provided at the lower end of the operating rod to roll on the upper surface of the guide portion to smoothly rotate the operating rod, and of the pair of operating rods,
A carrier-less automatic soldering device capable of adjusting the height of a conveyor, in which at least one side thereof is provided with a handle for rotating an operating rod and a stopper for preventing the elevated conveyor from descending.