JPH1174694A - Chip part supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chip part supply device wherein taking-out of a part with a sucking nozzle, etc., is performed well. SOLUTION: A flat magnetic field intensity is formed in a specified region comprising a taking-out position on a belt 2 with permanent magnets M1-Mn allocated on under side of the belt 2, especially with the permanent magnets M1-M3, so, a chip part P supplied to the taking-out position is held in a stable attitude by utilizing magnetic force, thus preventing a defective attitude arising with the chip part P with sure, so that taking-out of a part with a sucking nozzle 6 is performed very well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip component supply apparatus for transporting chip components in a line along a path and supplying a leading chip component to a predetermined take-out position.

[0002]

2. Description of the Related Art A chip component feeder of this type includes a component guide having a linear groove, and a belt which can be intermittently advanced and disposed below the component guide. Are guided and aligned by a belt in a predetermined direction while being guided by linear grooves. In addition, a stopper is provided on the front side of the component guide, and the chip components to be aligned and conveyed are stopped by the stopper, and the leading chip component is taken out by the suction nozzle.

[0003]

Chip components such as chip resistors tend to be miniaturized year by year, and recently, there are those having a length dimension of about 1 mm. In order to handle small and light-weight chip components in the above-mentioned chip component supply device, consideration is given particularly to the fact that components can be satisfactorily taken out by the suction nozzle, specifically, chip components supplied to the take-out position can occur. It is necessary to devise a device that can eliminate the defective posture and always take out the chip component in a stable posture.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a chip component supply apparatus capable of satisfactorily taking out components using a suction nozzle or the like.

[0005]

In order to achieve the above object, the present invention is to supply a leading chip component to a predetermined take-out position while stopping a chip component conveyed in an aligned state along a path by a stopper. In the chip component supply device, the magnetic force generating means is arranged so that a flat magnetic field strength appears in a predetermined area including the takeout position, and the chip component is attracted to the inner surface of the passage by the magnetic force of the magnetic force generating means. Is its feature.

According to this chip component supply device, the magnetic field generating means forms a flat magnetic field intensity in a predetermined area including the take-out position, thereby stabilizing the chip component supplied to the take-out position by using the magnetic force. It can be held in a posture.

[0007]

1 to 6 show one embodiment of the present invention. In the drawings, P is a chip component, 1 is a component guide, 2 is a belt, 3 is a belt guide, and 4 is a stopper. ,
5 is a magnet plate.

As shown in FIGS. 1 and 2, the chip component P is made up of a prismatic chip resistor, chip capacitor, chip inductor, etc., the length of which is several millimeters, and the width and height of which are different. Less than.

As shown in FIGS. 1 and 2, the component guide 1 has a straight groove 1a having a width and depth slightly larger than the width and height of the chip component P to be supplied on the lower surface. doing. At the front end of the component guide 1, an opening 1b for exposing the leading chip component P to the outside is provided.

The belt 2 is, as shown in FIGS. 1 and 2,
It is composed of a flat belt or a timing belt made of synthetic rubber, soft resin, or the like, and has magnetic permeability itself. Although not shown, the belt 2 is endless,
It is wound around a pair of pulleys arranged at the front and rear positions of the belt guide 3, and its upper part is slidably in contact with the lower surface of the component guide 1. The belt 2 is capable of intermittent advancement by a ratchet mechanism or the like (not shown). Incidentally, the advance distance of the belt 2 at one time is slightly larger than the length of the chip component P to be supplied.

In this embodiment, the linear groove 1 of the component guide 1
By closing the lower surface opening of a with the belt 2, a straight path (no reference numeral) for conveying the chip components P in an aligned state is formed. Although not shown, a component storage chamber for storing a large number of chip components P in a bulk state is disposed above the rear end of the passage via a curved passage or a vertical passage. Are guided one by one through the curved passage or the vertical passage to the rear end of the passage.

As shown in FIGS. 1 and 2, the belt guide 3 has a straight groove 3a having a width and a depth slightly larger than the width and the thickness of the belt 2 on its upper surface.
The belt guide 3 is disposed below the component guide 1 such that the center of the linear groove 3a in the width direction coincides with the center of the linear groove 1a of the component guide 1 in the width direction. The upper portion of the belt 2 is disposed in the straight groove 3a, and moves forward intermittently while being guided by the straight groove 3a. A recess 3b for mounting the magnet plate 5 is provided at the center of the bottom surface of the linear groove 3a in the width direction along the linear groove 3a.

As shown in FIGS. 1 and 2, the stopper 4 is formed of a non-magnetic rectangular plate having a thickness which is equal to or close to the depth of the linear groove 1a of the component guide 1. The stopper 4 can be displaced by rotational movement or parallel movement based on a drive mechanism (not shown). In the illustrated example, the component guide 1 is moved in accordance with the intermittent movement of the belt 2.
A stop position (see FIGS. 3 and 4) in which a surface facing the component guide 1 is in contact with the front end of the component guide 1, and an extraction position (FIGS. 1 and 2) in which the surface facing the component guide 1 is separated from the front end of the component guide 1. ).

At a position facing the leading chip component P of the stopper 4, a rare-earth permanent magnet J having a rectangular parallelepiped shape is provided.
However, it is incorporated so that its S pole surface can contact the leading chip component P and is flush with the surface of the stopper 4 facing the component guide 1. That is, the leading chip component P in contact with the stopper 4 (permanent magnet J) at the stop position is attracted to and attracted to the stopper 4 by the magnetic force of the permanent magnet J, and the stopper 4 is displaced from the stop position to the removal position. Sometimes, it is displaced forward together with the stopper 4 in the suction state. In the illustrated example, a permanent magnet J whose width is larger than the width of the chip component P to be supplied is used, but the width of the permanent magnet J is the width of the chip component P to be supplied. It may be as follows.

As shown in FIGS. 5 and 6, the magnet plate 5 has a width (w) and a thickness (h) corresponding to the width, the depth, and the depth of the concave portion 3b of the belt guide 3. And is mounted in the recess 3b. In the center of the upper surface of the magnet plate 5, circular holes H1 to Hn for mounting magnets are formed from the front end to the rear, and the frontmost circular hole H1 and the second and third circular holes H2 and H3 are formed. Penetrates up and down. In each of these circular holes H1 to Hn, a rare earth permanent magnet M1 to Mn having a disk shape is incorporated such that the upper surface thereof is flush with the upper surface of the plate. Each of the permanent magnets M1 to Mn has a plate length. They are arranged in a straight line without any gaps in the direction. Also, as shown in FIG.
The center of the frontmost permanent magnet M1 incorporated in the magnet plate 5 coincides with or approximates the longitudinal center of the leading chip component P displaced forward (withdrawal position) together with the stopper 4. In other words, the chip components P conveyed in an aligned state along the path are attracted to the belt 2 by the magnetic force of the permanent magnets M1 to Mn, maintain a state of close contact, and are displaced forward (withdrawal position) together with the stopper 4. The leading chip component P is moved to the belt 2 by the magnetic force of the frontmost permanent magnet M1.
To maintain a close contact state. The sizes, arrangement positions, surface magnetic fields, and the like of the permanent magnets M1 to Mn will be described later in detail.

When the belt 2 advances by a predetermined distance in the above-described apparatus, the chip components P on the belt 2 are aligned and transported forward while being guided by the linear grooves 1a. At this time, as shown in FIGS. 3 and 4, since the stopper 4 is in contact with the front end of the component guide 1, the chip component P to be aligned and conveyed is moved to the stopper 4 (permanent magnet J). Stop when it comes into contact with). As described above, since the plurality of magnets M1 to Mn are arranged below the belt 2, the chip components P aligned and conveyed along the path are separated by the magnetic force of the permanent magnets M1 to Mn. 2
To maintain a close contact state. Therefore, even if the chip components P that are aligned and conveyed come into contact with the inner surface of the linear groove 1a, the posture of the chip components P is not disturbed.

Further, since the intermittently advanced belt 2 has a slightly longer advance distance than the length of the chip component P, the leading chip component P to be aligned and conveyed comes into contact with the stopper 4 and stops. After that, the belt 2 can be advanced slightly by a surplus by utilizing the slip with the component contact surface. Therefore, even if there is a gap between the chip components P which are aligned and transported, the belt 2 can be intermittently advanced. This can be eliminated by repeating.

When the belt 2 stops moving forward, as shown in FIGS. 1 and 2, the stopper 4 is displaced forward from a stop position where it comes into contact with the front end of the component guide 1 to a take-out position.
The leading chip component P in contact with the stopper 4 is a permanent magnet J
When the stopper 4 is displaced from the stop position to the removal position, the stopper 4 is displaced forward together with the stopper 4 in the attracted state. As a result, the leading chip component P is separated from the following chip component P, and a gap is forcibly formed between the leading chip component P and the following chip component P. As described above, since the plurality of magnets M <b> 1 to Mn are arranged below the belt 2, the first chip component P that is displaced forward (withdrawal position) together with the stopper 4 is While sliding on the surface, it is attracted to the belt 2 by the magnetic force of the magnet M1 at the forefront end and maintains a state of close contact.

The removal of the leading chip component P by the suction nozzle 6 is performed in a state where the leading chip component P is displaced forward (withdrawal position) together with the stopper 4, as shown in FIGS. . After the leading chip component P is taken out by the suction nozzle 6, the stopper 4 returns and comes into contact with the front end of the component guide 1 again, and the same operation procedure as described above is repeated.

Here, the sizes, arrangement positions, surface magnetic fields and the like of the permanent magnets M1 to Mn will be described in detail with reference to FIGS.

In order to take out the component by the suction nozzle 6 satisfactorily, it is necessary to eliminate the possible defective position of the chip component P supplied to the take-out position and keep the chip component P in a stable posture at all times. There is. To achieve this,
The permanent magnets M1 to Mn, particularly the magnet M1 near the take-out position
The size, arrangement position and surface magnetic field of M3 are appropriately adjusted so that a flat magnetic field strength appears in a predetermined area including the take-out position on the belt 2.

In the adjustment examples shown in FIGS. 7 to 13, the thicknesses t (see FIG. 5) of the permanent magnets M1 to Mn are all set to 1.5 mm, and from the upper surface of the permanent magnets M1 to Mn to the upper surface of the belt 2. Is set to 1.3 mm (see FIG. 1). The X-axis in each diagram (b) representing the magnetic field strength is the distance from the center of the frontmost permanent magnet M1 to the rear (see FIG. 5).
Is shown. In this embodiment, the stopper 4 is also provided with the magnet J, but the movable range of the magnet J is limited to the frontmost permanent magnet M.
1 and the polarity (S-pole) of the surface facing the first chip component P is the frontmost permanent magnet M1.
, The magnetic field strength behind the center of the frontmost permanent magnet M1 is not greatly disturbed by the magnetic force of the magnet J.

In the adjustment example shown in FIG. 7, as shown in FIG. 7A, the upper surface polarities of the permanent magnets M1 to M3 are all N poles and M
The upper surface polarity of the permanent magnets rearward from No. 4 is set such that S poles and N poles are alternately arranged. Further, permanent magnets M1 to M3 having a surface magnetic field of 2200 G are used,
Permanent magnets having the same surface magnetic field are used as the permanent magnets behind. Further, permanent magnets having a diameter of 1.8 mm, 1.6 mm, and 2.0 mm are used as the permanent magnets M1 to M3, respectively, and have a diameter of 3.0 mm as a permanent magnet behind M4.
I'm using

In the case of such a setting, as shown in FIG. 4B, the strength of the upper surface of the belt 2 is set within a range of about 3.0 mm from the center of the frontmost permanent magnet M1 to the rear. A flat magnetic field intensity with an average value of about 450 G can be formed.

In the adjustment example shown in FIG. 8, as shown in FIG. 8A, the upper surface polarities of the permanent magnets M1 to M3 are all N poles,
The upper surface polarity of the permanent magnets rearward from No. 4 is set such that S poles and N poles are alternately arranged. Further, the permanent magnets M1 to M3 having a surface magnetic field of 3000 G
A permanent magnet having a surface magnetic field of 2200 G is used for the permanent magnets behind. Further, permanent magnets having a diameter of 1.8 mm, 1.6 mm, and 2.0 mm are used as the permanent magnets M1 to M3, and a permanent magnet having a diameter of 3.0 mm is used as a permanent magnet behind M4.

In the case of such a setting, as shown in FIG. 3B, the strength of the upper surface of the belt 2 is within a range of about 3.0 mm from the center of the frontmost permanent magnet M1 to the rear. A flat magnetic field intensity having an average value of about 550 G can be formed.

In the adjustment example shown in FIG. 9, as shown in FIG. 9A, the upper surface polarities of the permanent magnets M1 to M3 are all N poles, and M
The upper surface polarity of the permanent magnets rearward from No. 4 is set such that S poles and N poles are alternately arranged. Further, permanent magnets M1 to M3 having a surface magnetic field of 2200 G are used,
Permanent magnets having the same surface magnetic field are used as the permanent magnets behind. Further, permanent magnets having a diameter of 2.0 mm are used as the permanent magnets M1 to M3, and permanent magnets having a diameter of 3.0 mm are used as the permanent magnets behind M4.

In the case of such a setting, as shown in FIG. 2B, the strength of the belt 2 is set in the range of about 4.0 mm from the center of the frontmost permanent magnet M1 toward the rear side. A flat magnetic field intensity with an average value of about 430 G can be formed.

In the adjustment example of FIG. 10, as shown in FIG. 10A, all the upper surface polarities of the permanent magnets M1 to M3 are N poles,
The polarity of the upper surface of the permanent magnet behind M4 is set so that S poles and N poles are alternately arranged. Further, the permanent magnets M1 to M3
Is used, and has a surface magnetic field of 2200 G
A permanent magnet having the same surface magnetic field is used for the permanent magnets 4 and rearward. Further, permanent magnets M1 to M3 having a diameter of 3.0 mm are used, and permanent magnets behind M4 having the same diameter are used.

In the case of such a setting, as shown in FIG. 3B, the strength of the belt 2 is set to be about 6.0 mm from the center of the frontmost permanent magnet M1 to the rear on the upper surface of the belt 2. A flat magnetic field intensity having an average value of about 620 G can be formed. In this case, the magnetic field strength shows a large undulation as compared with the others, but there is no practical problem.

In the adjustment example shown in FIG. 11, as shown in FIG. 11A, the upper surface polarities of the permanent magnets M1 and M2 are all N poles.
The polarity of the upper surface of the permanent magnet behind M3 is set so that the S pole and the N pole are alternately arranged. Further, the permanent magnets M1, M2
Is used, and has a surface magnetic field of 2200 G
The permanent magnets 3 and rear have the same surface magnetic field. Further, permanent magnets M1 and M2 having diameters of 1.8 mm and 2.0 mm are used, respectively.
The permanent magnets having the same diameter are used for the permanent magnets 3 to the rear.

In the case of such a setting, as shown in FIG. 3B, the strength of the belt 2 is set to be about 2.0 mm from the center of the frontmost permanent magnet M1 toward the rear side. A flat magnetic field intensity with an average value of about 400 G can be formed.

In the adjustment example shown in FIG. 12, as shown in FIG. 12A, the upper surface polarities of the permanent magnets M1 and M2 are all N poles.
The magnet corresponding to M3 is excluded, and the upper surface polarity of the permanent magnets behind M4 is set so that N poles and S poles are alternately arranged. Further, 2200 are used as the permanent magnets M1 and M2.
A magnet having a surface magnetic field of G is used, and a permanent magnet behind M4 has the same surface magnetic field.
Further, a permanent magnet having a diameter of 1.8 mm is used as the permanent magnets M1 and M2, and a permanent magnet having a diameter of 3.
The thing of 0 mm is used.

In the case of such a setting, as shown in FIG. 3B, the strength of the belt 2 is set to be about 2.0 mm from the center of the frontmost permanent magnet M1 toward the rear side. A flat magnetic field intensity with an average value of about 400 G can be formed.

In the adjustment example shown in FIG. 13, as shown in FIG. 13A, the upper surface polarities of the permanent magnets M1 to M3 are all N poles.
The magnet corresponding to M4 is eliminated, and the upper surface polarity of the permanent magnet behind M5 is set so that the S pole and the N pole are alternately arranged. Also, 2200 are used as the permanent magnets M1 to M3.
A magnet having a surface magnetic field of G is used, and a permanent magnet behind M5 has the same surface magnetic field.
Further, the diameter of the permanent magnets M1 to M3 is 1.8 mm,
Use 1.6mm and 1.8mm, respectively,
A permanent magnet having a diameter of 3.0 mm is used as a permanent magnet behind.

In the case of such a setting, as shown in FIG. 3B, the strength of the belt 2 is set to a value within a range of about 3.5 mm from the center of the frontmost permanent magnet M1 toward the rear side. A flat magnetic field intensity with an average value of about 410 G can be formed.

As can be seen from the above adjustment example, when the distance of the flat magnetic field is 3 mm under the above conditions, as shown in FIG. 7 and FIG.
The diameters of M3 are 1.8 mm, 1.6 mm and 2.0 mm, respectively.
mm, and when the distance of the flat magnetic field is 2 mm, as shown in FIGS. 11 and 12, the diameters of the two permanent magnets M1, M2 from the foremost end are each 1.
It is good to be 8 mm and 2.0 mm.

As described above, according to the above-described chip component supply device, the permanent magnets M1 to M
n, in particular, the permanent magnets M1 to M3 form a flat magnetic field intensity in a predetermined area including the take-out position on the belt 2, so that the chip component P supplied to the take-out position is stabilized using magnetic force. The chip component P can be held in the posture, and the posture defect that can occur in the chip component P can be reliably prevented, and the component can be taken out by the suction nozzle 6 very well. Also, when the leading chip component P in contact with the stopper 4 is displaced forward (withdrawal position) together with the stopper 4, the posture of the displacing chip component P can be stably held.

When a small permanent magnet having a size of 2.0 mm or less is used, it is difficult to assemble the magnetized magnet into the plate 5 with the same polarity because of the high repulsive force between the magnets. is there. Therefore, in such a case, it is preferable to assemble the magnet (ferromagnetic component) before magnetization into the plate 5 together with an adhesive, and then perform the magnetization.

The permanent magnets M1 to Mn do not necessarily have to be disk-shaped permanent magnets, but instead have a rectangular parallelepiped shape (M1 ', M2', M3 ') as shown in FIG. You may. When a permanent magnet having such a shape is used, the magnetic field strength can be increased as compared with a case where a disk-shaped magnet whose length dimension matches the diameter is used.

Further, the permanent magnet J provided on the stopper 9 is not always necessary, and a movable stopper without a magnet may be used. Even if a fixed stopper without a magnet is used, the same operation and effect as described above are obtained. Is sufficiently obtained.

As described above, in the above-described embodiment, a configuration in which the lower surface opening of the linear groove is closed by a belt to form a path for transporting chip components is exemplified. However, the lower surface of the linear groove is closed by a fixed component other than the belt. Even so, a similar passage can be formed. In this case, it is preferable to intermittently carry the chip components in the passage by blowing air from the rear side of the passage or sucking air from the front side of the passage.

In the above-described embodiment, the permanent magnets M1 to Mn are arranged below the belt. However, when the above-described passage structure is used, the lower surface and the side surface of the passage are provided. Even if a similar permanent magnet is arranged,
The effect can be obtained.

[0044]

As described in detail above, according to the present invention,
The chip component supplied to the take-out position can be held in a stable posture by using the magnetic force, and the posture defect that can occur in the chip component can be reliably prevented, and the component can be taken out by the suction nozzle or the like extremely well. be able to.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a chip component supply device to which the present invention is applied.

FIG. 2 is a top view of FIG.

FIG. 3 is an operation explanatory view of the chip component supply device shown in FIG. 1;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a longitudinal sectional view of a magnet plate used in the chip component supply device shown in FIG. 1;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a diagram showing adjustment conditions of the permanent magnets M1 to Mn and the magnetic field strength.

FIG. 8 is a diagram showing adjustment conditions of the permanent magnets M1 to Mn and the magnetic field strength.

FIG. 9 is a diagram showing adjustment conditions of the permanent magnets M1 to Mn and the magnetic field strength.

FIG. 10 is a diagram showing adjustment conditions of permanent magnets M1 to Mn and magnetic field strength.

FIG. 11 is a diagram showing adjustment conditions of permanent magnets M1 to Mn and magnetic field strength.

FIG. 12 is a diagram showing adjustment conditions of permanent magnets M1 to Mn and magnetic field strength.

FIG. 13 is a diagram showing adjustment conditions of the permanent magnets M1 to Mn and the magnetic field strength.

FIG. 14 is a view showing a modification of the shape of the permanent magnets M1 to Mn.

[Explanation of symbols]

P: chip parts, 1 ... part guide, 2 ... belt, 3 ... belt guide, 4 ... stopper, J ... permanent magnet, 5 ... magnet plate, M1 to Mn ... permanent magnet, M1 ', M2', M
3 ': permanent magnet; 6: suction nozzle.

Claims (5)

[Claims] 1. A chip component supply device for supplying a leading chip component to a predetermined removal position while stopping a chip component conveyed in an aligned state along a path by a stopper, wherein a predetermined area including the removal position A chip component supply device, wherein a magnetic force generating means is arranged so that a flat magnetic field strength appears on the chip, and the chip component is attracted to the inner surface of the passage by the magnetic force of the magnetic force generating means. 2. The chip component supply device according to claim 1, wherein said magnetic force generating means comprises a plurality of permanent magnets. 3. The magnetic field intensity appearing in a predetermined area including the extraction position is adjusted by at least one of a size, an arrangement position, and a surface magnetic field of each of the plurality of permanent magnets. 2. The chip component supply device according to 2. 4. The stopper according to claim 1, wherein the stopper is a movable stopper that can be displaced between a position where the aligned and conveyed chip components are stopped and a take-out position separated from the stop position. 4. The chip component supply device according to claim 3. 5. The stopper is provided with a suction portion for attracting a leading chip component to the stopper, so that the leading chip component can be displaced together with the stopper when the stopper is displaced from a stop position to a removal position. The chip component supply device according to claim 4, characterized in that: