JPS6348574Y2 - - Google Patents

Description

[Detailed explanation of the invention] - Technical field of the invention This invention relates to a parts feeder.
This invention relates to the structure of a magazine insertion path in a magazine table of a magazine feeder.

・Technical background Parts feeders can be broadly classified into hopper feeders and magazine feeders, and magazine feeders are used as feeding devices for parts with complex shapes and precision parts. Generally, the magazine of a magazine feeder has a cylindrical shape with an opening at the end, and parts are stored in vertical rows. On the other hand, on the magazine feeder side, a magazine table is provided with a plurality of magazine insertion paths into which the magazines are planted. It has a structure that allows parts to be taken out in predetermined amounts.

・Prior art and problems In a parts feeder that takes out parts from a magazine by falling due to gravity,
A magazine containing parts must be installed on a magazine table with its opening facing down, but when the magazine is installed, parts inside the magazine may fall into the magazine insertion path of the magazine table. In order to avoid this, the magazine is provided with a locking means to prevent parts from falling, and this locking means is released after inserting the magazine into the magazine table, or the magazine table is removed from the parts feeder and the magazine is turned upward. The magazine is designed so that it can be inserted into the magazine table in a state in which the magazine is in the open position, thereby preventing the parts from falling when inserting the magazine. However, with the former structure, the structure of the magazine is complicated, and the locking means must be operated each time when storing parts in the magazine or inserting the magazine into the magazine table, making the work complicated and requiring automated equipment. The disadvantage is that the mechanism becomes complicated. In addition, with the latter structure, the magazine table must be removed each time a magazine is inserted, which not only makes the magazine insertion work complicated and difficult to automate, but also makes it impossible to feed parts to the parts feeder when inserting a magazine. This has the disadvantage that the operating rate of the device decreases.

- Purpose of the invention In view of the above-mentioned problems, this invention was made with the aim of obtaining a simpler technical means that allows the magazine to be planted on the magazine table without causing the parts inside the magazine to fall. To provide a magazine table having a structure in which parts in the magazine do not fall even if a magazine having no locking means is inserted facing downward.

- Structure of the invention To explain using the symbols of the illustrated embodiment, the magazine table of the parts feeder of the invention has parts 7...
In a magazine table that holds a magazine 1 storing 7 in a column with its opening facing downward,
Magazine insertion path 24 of magazine table 2...2
A plurality of leaf springs 23 . It is characterized by this.

An embodiment of the invention will now be described with reference to the illustrated embodiment showing a magazine feeder in which the supply components are DIP-ICs (dual in-line package integrated circuits).

Figure 1 shows the main parts of the magazine feeder.
1 is a magazine, 2 is a magazine table, 3 is a chute, 4 is a separation mechanism, 5 is a parts supply position, and 6 is a handling head for transporting parts.

As shown in Fig. 2, the magazine 1 is a cylinder with a roughly U-shaped cross section, and stores ICs 7 in a vertical row. One end of the magazine 1 is open, and a plurality of magazines 1 are set on the magazine table 2 with the open end facing down. The illustrated magazine table 2 is of a rotary type, and the magazines 1 are set at equal intervals on a circumference centered on an axis 8, and the magazines 1 are switched by intermittently rotating the axis 8 by a drive mechanism (not shown). 9 is a gate plate fixed to the table (not shown), and this gate plate 9 has a through hole 10 at one location,
When the IC in the magazine reaches the position of the through hole 10, it falls along the chute 3. The chute 3 is a rod-shaped member, and the IC 7 is inserted into the chute 3.
He falls while straddling it.

The separation mechanism 4 separates and supplies the ICs 7 one by one through the joint action of a locking pawl 12 provided at one end of the swing lever 11 and a pressing member 13 provided at the other end. That is, the lever 11 is provided so as to swing intermittently around the pin 14 at appropriate times, and in the illustrated state in which it swings counterclockwise, the locking pawl 12 engages the front end of the leading IC 7a on the chute 3. When the lever 11 rotates clockwise at a predetermined timing, the pressing body 13 clamps the second IC 7b between the chute 3 and the locking pawl 12. 1st IC7a by
is released and the first IC7a is placed in the chute 3
It slides down along the road and is delivered to the parts supply position. Next, when the lever 11 is rotated to the left and returned to the state shown in the figure, the clamping of the IC 7b by the pressing body 13 is released and the locking pawl 12 advances to a position that prevents the IC 7 from passing through the magazine. Only one piece is sent out from 1 along chute 3. When all IC7s in magazine 1 are sent out,
The photoelectric sensor 15 detects that the IC 7 has not fallen, and the magazine table 2 rotates one pitch to position the next magazine in the through hole 10.

The IC 7c that has slipped down to the component supply position 5 is suctioned and held by the vacuum nozzle 16 of the handling head 6, and is transported to a predetermined assembly position. 17
is a nozzle that injects air to the IC7c located at the component supply position 5, and the IC7c is pressed against the stopper 18 at the tip of the chute 3 by this airflow, preventing it from bouncing back when dropped, and the IC7c is released as a component. It is adapted to be precisely positioned at the supply position 5.

3 and 4 are diagrams showing the structure of the magazine table 2, in which 19 is a bottomed cylindrical main body, 20
is an inner guide rod planted on the bottom of the main body 19, 21
is an outer guide rod fixed to the inner surface of the cylindrical part of the main body. The inner guide rod 20 fits into the groove 22 (see FIG. 2) of the magazine 1 to guide the magazine 1, and the outer guide rod 21 is provided with a plurality of leaf springs 23...23. ...Magazine 1 by 23
The structure is such that the magazine 1 is held by urging the magazine 1 toward the inner guide rod 20. That is, the magazine insertion path 24 into which the magazine 1 is inserted is formed between the pair of inner guide rods 20 and outer guide rods 21.

The leaf spring 23 attached to the outer guide rod 21 has an arrangement pitch P smaller than the storage pitch Q of the IC 7 in the magazine 1, and its tip 23a is the fourth one.
As shown in the figure, it is provided so as to extend to a position that blocks the opening at the front end of the magazine 1.

In order to operate the magazine feeder continuously, it is necessary to sequentially replace empty magazines with magazines containing parts. In this case, since the magazine is inserted into the magazine table with its opening facing down, parts within the magazine may fall during insertion, which poses a problem. However, in the magazine table 2 of the present invention configured as described above, as shown in FIG. Since the intended part 7 is pushed back into the magazine 1, the part 7 is completely prevented from falling when the magazine is inserted.

- Effects of the invention As described above, according to the magazine table of the invention, it is possible to completely prevent stored parts from falling when a magazine is inserted, so it is possible to easily replace the magazine while the device is in operation, and it is possible to prevent parts from falling into the magazine. Since there is no need to provide special means to prevent the magazine from falling, the magazine is inexpensive and it is easy to automate magazine replacement. Furthermore, since the plate spring provided on the magazine table to hold the inserted magazine prevents parts from falling, the structure is extremely simple.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a cross-sectional side view showing the overall structure of the magazine feeder, Fig. 2 is a front view of the magazine in which parts are stored, and Fig. 3 is a front view of the magazine in which parts are stored.
FIG. 4 is a cross-sectional view and a plan view of the magazine table. In the figure, 1 is a magazine, 2 is a magazine table,
3 is a chute, 4 is a separation mechanism, 5 is a component supply position, 7 is a component (IC), 19 is the main body of the magazine table, 20 is an inner guide rod, 21 is an outer guide rod, 2
3 is a leaf spring, 23a is a tip of the leaf spring, 24 is a magazine insertion path, P is a pitch for arranging the leaf spring, and Q is a storage pitch for parts.

Claims (1)

[Scope of utility model registration request] In a magazine table of a parts feeder that holds a magazine containing vertically arranged parts with its opening facing downward, a plurality of leaf springs are installed along the magazine insertion path of the magazine table at intervals narrower than the storage pitch of the parts in the magazine. A magazine table for a parts feeder, characterized in that the tip is extended to a position that blocks the opening of the magazine.