JP3641296B2 - Material bar delivery jig - Google Patents

Description

[0001]
[Industrial application fields]
A material sheet is vertically divided into one material to provide a material bar, and electrode paste is applied to both sides of the material bar in the vertical direction, dried, and then horizontally divided to provide individual chip resistors. In the manufacturing process of chip resistors,
[0002]
A material bar delivery jig (that is, receiving and delivering ) that receives the material bar conveyed by the conveyor and relays (transfers) it to the jig panel of the next electrode paste application device. The jig)
[0003]
A material bar delivery jig that is effective to receive the material bar from the conveyor with high accuracy and high efficiency and to deliver the material bar to the jig board of the next electrode paste applicator with high accuracy and high efficiency. It is.
[0004]
[Previous issues]
Conventionally, the manufacture of a chip resistor in which a resistive film is formed on the surface of a rectangular ceramic substrate and electrodes are formed on both ends is performed by the following steps.
In other words, a material sheet t ″ having grooves (for vertical division and horizontal division) having a predetermined size corresponding to the size of the chip in advance and formed with a resistance film on the surface is vertically divided in a primary division process to form a narrow plate The material bar t ′ is provided, and electrode paste (eg, silver palladium paste) is appropriately applied to both longitudinal sides of the material bar t ′ by a suitable means and dried through a drying furnace, followed by a secondary splitting process. The individual chip resistors t are manufactured by dividing horizontally (see FIG. 4).
[0005]
Incidentally, at present, extremely small chip resistors such as 1608 type (1.6 × 0.8 mm) and 1005 type (1.0 × 0.5 mm) are manufactured by the above manufacturing process.
[0006]
The applicant previously has Japanese Patent Application No. Hei 5-120549 (Japanese Patent Publication No. Hei 6-310315) and “Electrode Coating Device for Chip Resistor”, and a jig board for the electrode coating device of the next process from the above-mentioned delivery jig. Developed and filed a device that efficiently applied the electrode paste to the set number of material bars delivered to the tool bar by the action of the jig board.
[0007]
As a previous stage of the process, with a focus on conveyor delivery jig and material bar, because there was a transfer jig again and again For development process of the material bar, and filed a new development content with this application, solves St. challenges To do.
[0008]
[Means for solving the problems]
That is, according to the present invention, a material bar is addressed to both ends of the U-shaped plate at right angles to the front ends of two parallel conveyors that convey a material bar vertically divided to one material sheet. Set up a delivery jig with a set number of loading recesses to be loaded at equal intervals, with the edges of both ends straddling the left and right outer sides of the conveyor,
[0009]
The transfer jig is provided so as to be movable up and down for a set distance, and to rotate 90 ° horizontally and return vertically at the highest position,
[0010]
With the conveyor and disposed to the intermediate position of the distal end portion of the conveyor parallel to the stopper to the reservoir stops at 1 in a position before the loading recess the material bar come to transport, between a forward position than the loading recess with the stop position It can be moved forward and backward,
[0011]
Further, the problem is solved by a material bar transfer jig provided with a sensor installed above the tip of the conveyor and above the material bar loaded in the loading recess.
[0012]
【Example】
Next, an embodiment of the present invention will be described with reference to the drawings .
Material Sheet t "the one addressed to the vertical dividing the material bar t 'tip 1a of the conveyor 1, 1 of two parallel coming conveyed and perpendicular to the 1a, U-shaped plate opposite edges portions 2a of, 2a has a set number (for example, 18) of material bars t ', and a set number of loading recesses 3 are provided at equal intervals. Installed on the left and right outside of 1,
[0013]
The delivery jig 2 is provided so as to be freely movable up and down for a set distance and 90 ° horizontally and vertically return at the highest position,
[0014]
The stopper 4 is installed in the middle between the front ends 1a and 1a of the conveyors 1 and 1 in parallel, and the material bar t 'conveyed by the conveyors 1 and 1 is stopped and stored in front of the loading recesses 3 and 3 at one o'clock. Provided between the stop position and the front position from the loading recess so as to freely move forward and backward,
[0015]
Further , a material bar delivery jig provided with sensors 5 and 5 installed above the tips 1a and 1a of the conveyors 1 and 1 and above the material bar t 'loaded in the loading recesses 3 and 3. It is.
[0016]
That is, according to the present invention, the material sheet t ″ of the chip resistor is vertically divided by the primary dividing device 6 to form the material bar t ′ addressed to one, and the leading end 1a of the conveyor 1 that conveys the material bar t ′. includes a transfer jig 2, the number of sets (e.g., 18 pieces) material after bar t 'was accepted taken receiving means 2 of the transfer jig 2 rotates 90 ° horizontally uppermost position, the in horizontal position 2, all the material bar t 'which is supported at equal intervals in the loading recess 3 of the transfer jig 10, remains equally spaced, in unison, the jig plates 7 of the electrode paste coating apparatus of the next step It was to pull pass ERROR, a transfer jig 2 of the material bar t '.
[0017]
[Action]
The material bar t ′ obtained by vertically dividing the material sheet t ″ with the primary dividing device 6 is transported by the conveyor 1, and the progress is temporarily stopped by the stopper 4 which is initially at the stop position, and a plurality of the bars are stored. At the same time when the delivery jig 2 arrives at the start position (the position where the uppermost loading recess 3 faces the top material bar t ′),
[0018]
The stopper 4 advances to a position ahead of the loading recess 3, so that the leading material bar t ′ is advanced by the conveying force of the conveyor and loaded into the loading recess 3.
[0019]
When the completion of loading is detected by the sensor 5 and the delivery jig 2 is raised by one step in accordance with the command, the next material bar t ′ that has been pressed by the conveying force of the conveyor 1 is loaded into the loading recess 3. , This is detected by the sensor 5, the transfer jig 2 is raised one step, and the next material bar t 'is repeatedly loaded,
[0020]
When the set number of delivery jigs 2 (e.g. 18 pieces) is loaded in all the loading recesses 3 (the highest position) , the stopper 4 moves backward to return to the stop position, and the material bar t ′ of the conveyor 1 is advanced. Stop, accumulate,
[0021]
On the other hand, the transfer jig 2 at the highest position is rotated by 90 ° in the horizontal direction, and in this state, all the material bars t ′ are simultaneously transferred to the jig board 7 of the next electrode coating apparatus at equal intervals, and transferred.
[0022]
The empty delivery jig 2 is restored by 90 °, then lowered to the lowest position and returned to the start position.
The above action is repeated again from the beginning.
[0023]
【effect】
A loading recess for loading one material bar is provided at a set number of equal intervals, and the loading is completed in all loading recesses, that is, a set number of material bars are aligned at an equal interval for one. Since it can be supplied to the next- stage apparatus as it is, it has an excellent feature that enables high-precision and high-efficiency execution of the application process of the next-order electrode paste .
[0024]
When the material bar is transported by the conveyor and received by the transfer jig, a stopper and sensor are provided near the tip of the conveyor. The bar can be stopped at 1 o'clock and stored , and the sensor moves forward to confirm that the stopper has moved forward and stopped, and that the stopped material bar has been moved forward and loaded into the loading recess. One-step ascent of the jig can be instructed and performed reliably, and the separation action from the conveyor of the material bar to the delivery jig can be performed with extremely high accuracy and efficiency, and productivity can be improved. Has an excellent effect.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing an embodiment of the present invention.
FIG. 2 is a view showing a state where a stopper is in a stop position and a delivery jig is in a start position in FIG. 1;
FIG. 3 is a plan view of FIG. 1;
FIG. 4 is a diagram showing a manufacturing order of chip resistors.
[Explanation of symbols]
t Chip-type resistor t ′ Material sheet t ″ Material bar 1 Conveyor 1a Tip 2 Transfer jig 2a Edge edge 3 Loading recess 4 Stopper 5 Sensor 6 Primary dividing device 7 Jig board

Claims (1)

Load the set number of material bars to be loaded at one end of the U-shaped plate, perpendicular to the tip of the two parallel conveyors that convey the material bar vertically divided into one material sheet. Install the transfer jigs with the recesses set at equal intervals, so that the edges of both ends straddle the left and right outer sides of the conveyor,
The transfer jig is provided so as to be movable up and down for a set distance, and to rotate 90 ° horizontally and return vertically at the highest position,
With the conveyor and disposed to the intermediate position of the distal end portion of the conveyor parallel to the stopper to the reservoir stops at 1 in a position before the loading recess the material bar come to transport, between a forward position than the loading recess with the stop position It can be moved forward and backward,
In addition, the sensor was installed at the upper position of the material bar loaded in the loading recess above the tip of the conveyor .
Material bar delivery jig.

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