JPH0192158A - Feeding device for electronic parts of chip mounter - Google Patents

Abstract

PURPOSE:To reduce the bouncing of chip parts while preventing non-uniform rotation by giving a defined frictional force to a sprocket by providing a friction resisting means on the sprocket. CONSTITUTION:As a lever 7 is vertically moved, a claw 8 is operated in the longitudinal direction to rotate a sprocket 10 at a prescribed pitch. After the sprocket 10 is rotated, a fixing support 9 restrains the sprocket 10 from moving. Although the sprocket 10 is pushed and rotated by the claw 8 accompanying the vertical movement of the lever 7, as a tape feeding tact becomes high speed, the sprocket is over-rotated from the prescribed position due to inertia force, etc., and returned and stopped by means of the fixing support 9. Since this action is carried out in a short time, vibration is generated on a tape which is sent by means of the sprocket 10 causing the bouncing of chip parts. Therefore, in order to prevent the over-rotation of the sprocket 10 from the prescribed pitch, resistance is given in the rotating direction of the sprocket 10 to make the sprocket 10 rotate smoothly.

Description

Detailed Description of the Invention [Industrial Application Separation] The present invention relates to a chip mounter tip mechanism and a parts supply device. Concerning prevention of tip electronic parts from dancing during normal operation.

[Conventional technology]

Conventionally, the tape feeder, which is a component mounting device of a chip mounter device that mounts electronic components on an electronic circuit R1 board, is as shown in the 60-24100SJVCG self-mounting device.
Although there is a shutter handle in the parts supply section that completely prevents the movement of chip parts, the rotational vibration of the sprocket of the present invention is suppressed by using a magnet to help the tape feed τ smoothly. There is nothing fancy about the structure that prevents the electronic parts from dancing, or the means that suppresses the rotational vibration of the V-nisprokerato, and the structure that simultaneously performs rotational positioning and stage control.

[Problem that the invention seeks to solve]

The feeding area for chip electronic components @ is the lever υ upper door provided on the tape feeder! l11111C machining, the pawl provided at the tip of the lever moves back and forth VC, causing the sprocket to press and the sprocket to rotate with the fixed bracket.
As the tape continues to feed, the electronic components are retained by the suction nozzle of the tape mounter.

However, the sprocket does not rotate at the specified pitch when feeding the tape, and after overshooting, the sprocket rotates at the specified pitch.
When I got back, I wrote 1 JJ piece and dropped out of school for 1 year. As the component supply tact increases to Vc, the sprocket rotation will not over-rotate, and the tape λ position during tape feeding will increase. Therefore, the chip component dances when the tape displacement becomes large.

An object of the present invention is to suppress the movement of chip parts by providing a mechanism that applies a rotational force to the sprocket so that it does not rotate beyond a predetermined rotation angle when the sprocket rotates. It's about doing.

[Means for solving inter-Zhao points]

The above purpose is to reduce the movement of the chip components at the component opening position of the chip component supply section, reduce the tape displacement to 1 when feeding the tape, and to accurately rotate the sprocket as a means to suppress the movement of the tip components. The purpose is to stop the sprocket smoothly, and to apply a constant force to the sprocket to prevent uneven rotation. Frictional force can be applied by using contact resistance or by using magnetic force τ. By using these hands and e, smooth rotation of the sprocket can be obtained, which reduces vertical movement during tape feeding and eliminates dancing of chip parts.

[Effect]

The IC has a structure in which a claw attached to the tip VC of the lever moves forward and backward VC6 by vertical movement of a tape feed lever provided on a 18μ tape feeder. This pawl rotates at a constant pitch on the front sprocket, feeding the tape. The claw at the base of the lever rotates when pushed between the sprockets and the ship. The gap between the pawl and the sprocket affects the inertia of the sprocket depending on the tape feeding speed.

In order to suppress the rotation and excitation of the sprocket, the present invention attaches a permanent magnet to the side surface of the sprocket where there is a slight gap, and uses magnetic force to apply a rotational force to the sprocket. Sprocket rotation τ
By making the rotation of the sprocket smooth, the tape fluctuation during tape feeding is reduced, the movement of the chip parts is improved, and the mistake of picking up the chip parts of the nap mounter is prevented'f! :Edited.

In addition, by creating a groove on the side of the sprocket and attaching a pole plunge yard, it is possible to reduce the rotational torque of the sprocket, reduce the rotational vibration t#, and improve the detent strength of the chip parts. Ru.

Therefore, it is possible to prevent the chip mounter from picking up chip components incorrectly.71. /).

〔Example〕

Hereinafter, an embodiment of the present invention is shown in Fig. 1, and details of the structure 44 are shown in Fig. 2. I will explain the general illness using Figure 1 (purple). 1V shows the main body of the tape feeder, 21 shows the tape reel on which the tape is wound, 3 shows the tape holding plate, 4rt shows the spring for applying force for pressing the tape, and 5 shows the fulcrum of the tape holding plate. 6F shows the tape guide and 7ri shows the long lever that moves the tape. 8 indicates a claw that moves back and forth 1C when the lever 7 moves up and down. 9f sprocket 1
0 fixed support, 11 a reel for winding the upper tape 150, 12 a belt that transmits the four motions of the sprocket 10,
Reference numeral 13 indicates an empty tape guide, 14 indicates a tape, 16 indicates an opening of a chip component, and 17 indicates a suction nozzle.

Next, I will explain how it works. Tape +4Vi is wound on tape reel 2 and installed on the main body of the tape feeder. The tape 14 runs between the tape presser plate 3 and the tape guide 6, and at the tip of the tape presser plate 3, the upper tape 15 is peeled off and wound onto a reel 11 (C-wound).The upper tape 15 is peeled off. The chip component opening 16 is at the component opening 16, and the chip component is sucked by the suction nozzle from the chip mounter.The tape with an empty IC passes through the guide guide 13 and is cut at the tip position with a cutter when it reaches a certain length. It is designed to be dropped.

When the lever 7 moves up and down, the pawl 8 moves back and forth vcfp, and the sprocket 10 is rotated at a predetermined pitch. After the sprocket 10 rotates, there is a solid foot support 9 to prevent it from breaking.

However, when the tape feed tact reaches VC, the lever 7
No upper do! 1&O, the sprocket 10 is rotated while being pushed by the pawl 8, but the sprocket 10 rotates too much from a predetermined position due to inertia, etc., and then returns from the fixed support 91 to a floating center. Since this operation is performed in a short period of time, the tape +fC inserted by the sprocket 10 is withdrawn, which causes the chip parts to dance. Therefore, in order to prevent the sprocket 10 from rotating too far beyond a predetermined pitch, the sprocket rotation direction f (by providing resistance, the sprocket 10 can be smoothly rotated.
The remains of the tp shrines of M and A anti-bows and stages are shown in Figure 2. F1 will be explained below using FIG. No. 21.8! ! J is a view seen from the 1111I plane of the sprocket, and the same numerals and the same numbers as in Figure 1 are shown. 14v, tape 1
Chip parts 2 (1 and 10 are sprockets, 1a shows a part of the headquarters. 21a1 sprocket 10)
The attachment to the permanent magnet 22 is shown in the bolt. 23r shows the gap between the sprocket 10 and the permanent magnet. 1 (JA
indicates a pawl through which the sprocket 10 feeds the tape. Here, as shown, the sprocket 10 and the permanent magnet 22 are attached facing each other, and the purpose is to increase the rotational direction of the sprocket 10.

Figures 3 and 4 show other IM rows of the sprocket.

FIG. 3 shows a qIIrIIJ diagram of the sprocket.

30 is a sprocket, 30A is a function of rotating the sprocket 30 at a predetermined pitch, and a tape chip component 20.
32, a part of the main body of the 1art 1 tape queider, which plays the role of feeding, shows a plate on which a ball plunger 34 is attached. 31ri, sprocket 30 installation bolts are shown. 14 indicates a tape. 33Vi shows the next side where the ball plunger 340 ball enters and the sprocket 30 is fully fixed.

The details of the structure for installing the ball plunger 34 are shown in FIG. Next, a description will be given of how the sprockets 30 can be positioned with good stacking.

The same allocation as the bin position of sprocket 30 is angular position 11
tic groove 33t' set as many as the number of bins 30A, groove 33V
The ball 36 at the tip of the ball plunger 34 enters and the spring 35 presses against it, and the sprocket) 3Ll'f
I: Fixed positioning. The number of ball plungers 34 is considered to be the most appropriate number based on the support 444 of the sprocket (3t) if three are installed at the position divided into three parts of the circle, but the number may be increased. .

As mentioned above (C, by using a full ball plunger 3414 structure for the sprocket 30, smooth rotational movement can be achieved even when the sprocket 30 is started or stopped, and the predetermined pitch w and top can be adjusted. It can be done well.

〔Effect of the invention〕

According to the present invention, as the tape feed lever moves up and down,
The pawl at the tip of the lever acts in the front and rear direction vc and pushes the sprocket forward in the tangential direction, causing intermittent rotation.

The tip of the pawl pushes against the sprocket at a partial pitch, but by increasing the force (rotational torque) of the sprocket, the phenomenon of turning too far around the specified rotation angle is eliminated, and therefore the tape becomes less crowded. The tape moves smoothly at the start and stop, reducing tape vibration and preventing tip parts from dancing.

In addition, the positioning of the sprocket in the rotational direction is easy when the ball enters the groove, and the positioning is done without the ball entering the groove. It will not be done.

Smooth rotational movement is possible when the sprocket starts and stops rotating.

[Brief explanation of the drawing]

Fig. 1 is a complete encyclopedia of the chip mounter's electronic component supply device showing one embodiment of Fukomei, Fig. 2 is a side view of the sprocket, and Fig. 3 is a side view showing another embodiment of the sprocket. , FIG. 4 is a detailed view of a portion of FIG. 3. 1...Main body of tape reel 2...Tape reel 3...Tape holding plate 4...Spring 5...
Tape holding plate fork point 6...Tape guide 7.
・・Lever 8・Claw 9・Fixed support 1
0... Sprocket 11... Reel to wind up 12... Heald 13... Nitrogen tape guide kite 1
4... Tape 15... Upper tailor 15...
・Opening part 1i...Suction shoulder nozzle 22...Permanent magnet 21...Mounting area) 2. i-1, gap + OA...sprocket pawl. /″S Mepa Patent Attorney Katsuo Ogawa λ. Fig. 2 1α ・Part of Mokku Io 10=7 Prolysito (○
A...Gashi22...English ZJAru 14.° Hoop
2o... Now... Knob parts 30° Nuprobe Vi
3B"・Paralysis 34・Pla 2 gear 3j+
... Plunge gravel - 3rd gear 36 ... Bone lane ... No bar

Claims (2)

[Claims] 1. A large number of chip electronic components are arranged on a tape at equal intervals, and the chip electronic components are wound to a certain size on a reel.
In a tape feeder in which the sprocket rotates due to the vertical movement of the feed cam and feeds the tape at a predetermined pitch, in order to smoothly rotate the sprocket, the sprocket is mechanically provided with frictional resistance means, or magnetic force is applied to the sprocket. An electronic component supply device for a chip mounter, characterized in that a frictional resistance means is provided to suppress rotational movement of a sprocket. 2. An electronic component supply device for a chip mounter according to claim 1, wherein a ball plunger is used as a rotational positioning means.