JPH085039Y2 - Substrate splitting device with rectangular slits - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is a strip-shaped substrate with split grooves,
For example, the present invention relates to a dividing device used for dividing a rectangular ceramic substrate having a dividing groove for forming a rectangular chip fixed resistor, a rectangular chip capacitor, etc., into each element along the dividing groove.

[0002]

2. Description of the Related Art As an example, the manufacturing sequence of a rectangular chip fixed resistor will be described. The ceramic substrate 1 shown in FIG. 6 (a) is divided into vertical and horizontal grid-like grooves 2 and 3 beforehand.
(The interval of the dividing groove 2 is wider than the interval of the dividing groove 3) is formed,
It is divided into several hundreds of elements 4 and fired, a resistance paste is applied to one surface on the side of the split grooves 2 and 3, trimming, application of surface protective paint and marking are performed. This ceramic substrate 1 with a split groove is divided along the split groove 2 as shown in FIG.
As shown in FIG. 6, a strip-shaped grooved substrate 5 is formed, and silver long-side coating 6 serving as a terminal is applied to both long side edges of the strip-shaped grooved substrate 5 as shown in FIG. 6C. dry. afterwards,
The strip-shaped substrate 5 with split grooves is divided along the split groove 3 into each element 4 as shown in FIG.

In order to divide the ceramic substrate 1 with a split groove into strip-shaped substrates 5 with a split groove, the applicant of the present invention has previously filed Japanese Patent Application No. 176547/1985. Two
5368) is used.
That is, the first and third belts, the second belt, and the second belt, so that both sides of the ceramic substrate 1 with the split groove are parallel to the split groove 3.
It is conveyed by being sandwiched by a fourth belt, and at the position of the rotating body for division, the first and third belt sides hold the ceramic split grooved substrate 1 in a sandwiched state, and the second and fourth belts are held.
On the belt side, the ceramic split grooved substrate 1 is released, and the ceramic split grooved substrate 1 is bent along the dividing rotating body to divide along the split groove 2 into strip-shaped split grooved substrates 5. . At this time, as described above, the ceramic split grooved substrate 1 is pressed only by the first and third belts on one side, so that no strain force is applied over the entire length of the split groove 2 and Can be reliably divided along.

In order to further divide the strip-shaped substrate 5 with split grooves into pieces along the split groove 3 into each element 4,
A dividing device as shown in FIG. 7 is used. As shown in FIG. 7, a rubber receiving roller 71 is supported so as to be freely rotatable, and a belt 73 is wound around the receiving roller 71 and the rubber driving roller 72. Arm 74
A base portion of the above is rotatably supported by a bearing 75, and a small-diameter dividing roller 76 is rotatably supported by a tip end portion of an arm 74. A support base 77 is provided at a fixed position on the side of the arm 74, and an adjusting screw 78 is screwed into a screw hole of the support base 77 so as to be able to move forward and backward. The pressing force of the dividing roller 76 on the belt 73 and the receiving roller 71 is adjusted by advancing and retracting with the rotation of the adjusting screw 78, and the belt 73 and the receiving roller 71 are recessed.

Therefore, the strip-shaped substrate 5 with the split grooves conveyed by the belt 73 is sandwiched between the splitting roller 76 and the recessed portion of the belt 73 supported by the receiving roller 71 on the back side, and the split groove 3 is formed. Can be divided for each element 4.

[0006]

However, the dividing roller 76 is supported by the tip of the arm 74 which is rotatably supported by the bearing 75 as in the above-mentioned conventional example, and the adjusting screw 78 is used.
In the configuration in which the pressure applied to the arm 74 is adjusted by advancing and retracting the roller 74 to adjust the pressing force of the dividing roller 76 against the belt 73 and the receiving roller 71, the pressing force of the dividing roller 76 becomes the tangential direction of the receiving roller 71, The strip-shaped substrate 5 with split grooves is not evenly applied on both sides of the split groove 3, but is added obliquely. For this reason, the strip-shaped substrate 5 with the split grooves is set to the split groove 3
It cannot be split in the vertical direction in the depth direction, and there is a risk of cracking in an oblique direction, resulting in defective products. Also, adjust screw 7
A loss due to the bearing 75 occurs in the rotation of the arm 74 due to the advance / retreat of 8, and the followability is poor. Therefore, it is difficult to finely adjust the pressing force of the dividing roller 76.

The present invention solves the above-mentioned problems of the prior art, and allows defective strip-shaped substrates with split grooves to be accurately split vertically in the depth direction of the split grooves. Can be prevented, and fine adjustment can be performed so as to improve the follow-up property when adjusting the pressing force of the dividing roller, and the follow-up operation of the dividing roller can be performed smoothly. It is an object of the present invention to provide a dividing device for a strip-shaped substrate with split grooves, which is capable of easily and reliably adjusting the pressing force of the dividing roller.

[0008]

The technical means of the present invention for achieving the above-mentioned object is to provide a receiving roller supported so as to be freely rotatable, and a strip-shaped split groove for the receiving roller. A belt having flexibility for conveying the substrate with the slits and dividing the substrate with the slits along the slits, and the substrate with the slits for slits conveyed by the belt as the receiving roller. A small-diameter dividing roller for pressing the above-mentioned belt against the dividing groove and dividing it, and guiding the dividing roller so that the center thereof substantially coincides with the center of the receiving roller. The guide means and the pressing means including the adjusting means for adjusting the pressing force of the dividing roller with respect to the belt and the receiving roller, and the traveling means for traveling the belt, the guide means of the pressing means, A support plate that rotatably supports the application roller, and a linear guide that guides the movement of the support plate, and the adjusting means of the pressing means has a support base having a screw hole and a screw hole of the support base. A pressurizing casing in which a screw portion formed on the outer periphery is screwed so as to be capable of advancing and retreating, and the pressurizing casing is supported so as to be movable in the axial direction in a state in which a tip portion is projected, and presses the support plate. Pressure pin,
A spring that is housed in the pressure casing and that biases the pressure pin in the pressing direction, and a pressure scale dial that rotates the pressure casing to adjust the pressing force of the dividing roller by the pressure pin. And have.

The above-mentioned dividable angle range is 3 to 4 degrees.
It can be selected in the range of 5 degrees.

[0010]

According to the present invention constructed as described above, the belt, or the belt and the receiving roller are recessed by the pressing force of the dividing roller adjusted by the adjusting means of the pressing means, and the belt is strip-shaped. When the substrate with split grooves is conveyed, the strip-shaped substrate with split grooves is sandwiched between the splitting roller and the recessed portion of the belt supported by the receiving roller so as not to escape backward, and each strip along the split groove is separated. It is surely divided for each element. At this time, since the center of the dividing roller is moved so that the center of the dividing roller substantially coincides with the center of the receiving roller, the pressing force of the dividing roller adjusted by the adjusting means is applied to the strip-shaped grooved substrate. The strip-shaped substrate with split grooves can be split almost vertically on both sides of the groove, and can be split vertically in the depth direction of the split groove. Further, since the center of the dividing roller is substantially aligned with the center of the receiving roller, that is, the dividing roller is moved linearly, it is possible to improve the followability when adjusting the pressing force of the dividing roller.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 show a dividing device for a strip-shaped substrate with split grooves according to an embodiment of the present invention. FIG. 1 is a schematic front view of the whole, FIG. 2 is an enlarged plan view of a main portion, and FIG. FIG. 4 is a partially cutaway enlarged front view of a main part, and FIG. 5 is an enlarged view of the main part for explaining the dividing operation.

As shown in FIGS. 1 to 4, a receiving roller 12, a splitting auxiliary roller 13, a guiding roller 14, a driving roller 15 and a guiding roller 16 are rotatably supported by a machine frame 11, and each of them is rotatably supported. A belt 17 is endlessly hung on the rollers 12 to 16. The drive roller 15 is linked to a motor (not shown), and the drive roller 15 is rotated by driving the motor, so that the belt 17 travels in the arrow X direction. The receiving roller 12 has a rubber-like portion on the outer circumference and is formed to have a large diameter. The belt 17 is formed of a flexible material such as rubber so as to convey the strip-shaped substrate 5 with the split grooves and cooperate with the division.

The split roller 1 is provided on the receiving roller 12.
8 is provided, and the dividing roller 18 is formed to have a small diameter, and is guided by the guide means of the pressing means so as to move vertically in a state where the center of the dividing roller 18 substantially coincides with the center of the receiving roller 12. The pressure of the belt 17 and the receiving roller 12 is adjusted by the adjusting means of the pressing means, so that the receiving roller 12 and the belt 17 are recessed (see FIG. 5).

Explaining in detail, the split roller 18 has a shaft 19 projecting on both sides thereof rotatably supported by a tip bifurcated portion 21 of a support plate 20 via a bearing 22. The support plate 20 is guided by a linear guide 23 so as to move in the vertical direction. That is, the linear guide table 25 is attached to the support plate 24 attached to the machine frame 11 with the screws 26.
Fixed by the linear guide stand 25 and the linear moving stand 2
7 is movably supported in the vertical direction via balls 28, and the support plate 20 is fixed to the linear moving base 27 by screws 29. A support base 30 is fixed to the machine frame 11, and a screw hole 31 is formed in the support base 30. Screw hole 31
A screw portion 34 formed on the outer periphery of the cylindrical body 33 of the pressurizing casing 32 is screwed into the casing so as to be capable of advancing and retracting in the vertical direction. The pressure casing 32 has a bottom plate 35 inside the lower end of the cylindrical body 33.
Is fixed, and the screw portion 3 formed on the inner circumference of the upper portion of the cylindrical body 33.
A cap screw 37, which serves as a top plate, is screwed to the position 6 so that the position can be adjusted. A pressure pin 38 is movably supported in the pressure casing 32 in the axial direction, that is, in the vertical direction, and a tip end portion of the pressure pin 38 is inserted through a hole 39 formed in a central portion of the bottom plate 5 of the pressure casing 32. It is projected downward. A pressure spring 40 is housed in the pressure casing 32. The pressure spring 40 is interposed between the cap screw 37 and the head of the pressure pin 38 in a compressed state, and the pressure pin 38 is pressed downward. Is under pressure. The receiving portion 41 is fixed to the side of the support plate 20,
The tip of the pressure pin 38 is attached to the receiving portion 41 by the pressure spring 4.
The support plate 20 is pressed by the impact resilience of 0,
The dividing roller 18 and the linear moving table 27 are pressed downward along the linear guide table 25. At this time, the pressure spring 4 is adjusted by adjusting the position of the pressing screw 37.
The impact resilience of 0 is adjusted, and the pressing force of the dividing roller 18, etc., that is, the pressing force of the dividing roller 18 against the belt 17 and the receiving roller 12 is adjusted.

The pressing force of the dividing roller 18 against the belt 17 and the receiving roller 12 is the pressure scale dial 4.
Adjusted by 2. The pressure scale dial 42 is composed of a fixed platen 3, a scale plate 44, and the like. The fixed platen 43 is provided on the outer periphery of the cylindrical body 33 of the pressure casing 32, and is fixed at a fixed position by fixing a detent 45 protruding from the fixed platen 43 and a hole 46 formed in the support base 30. The graduation plate 44 is rotatably provided on the outer periphery of the cylindrical body 33 above the fixed plate 43, and the graduation plate 44 is linked to the cylindrical body 33 via a pinion gear, an internal gear (not shown) and the like. A scale 47 is displayed on the outer periphery of the lower edge of the scale plate 44, and a scale number 48 is displayed on the outer periphery of the upper edge of the fixed plate 43. Then, by rotating the graduation plate 44, the pressure casing 32 is rotated through a pinion gear, an internal gear, and the like, and is moved forward and backward with respect to the support base 30, so that the pressure applied to the support plate 20 and the like, that is, the dividing roller. The pressing force of 18 can be adjusted. At this time, one rotation of the graduation plate 44 corresponds to one rotation by the reduction ratio of the pinion gear and the internal gear, that is, it corresponds to the adjustment of the pressing force of 1 kg of the dividing roller 18 as the pressure casing 32 moves back and forth by 1 mm. The dividing roller 1 is set by, for example, 1/10 rotation of the scale 44.
The pressing force of 8 can be set to 100 g, and the reproducibility can be improved.

The dividing auxiliary roller 13 is a receiving roller 12
And the dividing roller 18, which is arranged so that the position of the belt 17 can be adjusted in front of the belt 17 in the traveling direction, and is used to divide the strip-shaped substrate 5 with the dividing grooves carried by the belt 17 along the dividing grooves 3. With respect to the center of the roller 18, the belt 17 is arranged so as to be able to follow the dividing roller 18 in an angle range of 3 to 45 degrees as a sufficient divisible angle range α.
Is set to be guided.

The base of the arm 49 is rotatably supported by the machine frame 11 between the drive roller 15 and the guide roller 16 by the bearing 50. A tension roller 51 is rotatably supported at the tip of the arm 49. On the side of the arm 49, a female screw 52 is attached to the machine frame 11.
Is attached, and the adjusting screw 53 is screwed into the female screw 52 so as to be able to move forward and backward. The turning position of the arm 49 is adjusted by advancing and retracting the adjusting screw 53, and the tension roller 51 is moved.
The pressing force of the belt 17 against the belt 17, that is, the tension of the belt 17 is adjusted.

A guide 54 is attached to the machine frame 11 above the belt 17 between the guide roller 16 and the receiving roller 12, and the belt 17 is attached by the guide 54.
The inclination of the strip-shaped substrate 5 with split grooves conveyed by is corrected.
A discharge chute 55 is attached to the machine frame 11 below the guide roller 14, and a receiving box 57 is attached to a support table 56 attached to the machine frame 11 below the discharge chute 55. Removably supported.

The operation of the above arrangement will be described below. At the upper part of the guide roller 16, the strip-shaped grooved substrate 5 supplied on the belt 17 is placed on the belt 17
Are conveyed along with the traveling of the sheet, and the inclination of the strip-shaped grooved substrate 5 is corrected by the guide 54 during this period. On the other hand, as described above, the belt 17 and the receiving roller 12 are recessed by the pressing force of the dividing roller 18. As shown in FIG. 5, the strip-shaped substrate 5 with split grooves conveyed as described above includes a splitting roller 18 and a recessed portion of a belt 17 supported by a receiving roller 12 so as not to escape backward. Sandwiched between.
In this recessed portion, if the interval between the dividing grooves 3 of the strip-shaped grooved substrate 5 is narrow and the size of one element 4 is small, the strip-shaped grooved substrate 5 is moved along the dividing roller 18 to divide it. Although the angle range from the center of the dividing roller 18 is insufficient, the belt 17 is guided by the auxiliary dividing roller 13 as described above, and the strip-shaped grooved substrate 5 is divided from the center of the dividing roller 18. A sufficient division angle range α, that is,
Since it extends along the dividing roller 18 in the range of 3 degrees to 45 degrees, the strip-shaped substrate 5 with split grooves is conveyed so as to be wound around the split roller 18 in a close contact state, and surely along the split groove 3. It can be divided.

In this way, the belt 17, the receiving roller 12, the dividing roller 18, and the dividing auxiliary roller 13
And a movement guide means for the dividing roller 18 including a linear guide 23 and the like, and a pressure adjusting means for the dividing roller 18 including a pressure casing 32, a pressure pin 38, a pressure spring 40, a pressure scale dial 42 and the like. , Tension roller 51
And a pressure adjusting means 52 for the tension roller 51,
By cooperation with 53, the interval of the dividing grooves 3 of the strip-shaped substrate 5 with dividing grooves is narrow, and even a small element 4 can be surely divided along the dividing grooves 3. In the case of a relatively large element 4 having a relatively large gap between the dividing grooves 3 of the strip-shaped substrate 5 with dividing grooves, a dividing roller 18 having a slightly larger diameter is used to surely follow the dividing groove 3. It can be divided and can be applied to division of elements 4 of various sizes by selecting and using division rollers 18 having different diameters. Each element 4 (see FIG. 6D) divided as described above passes through the chute 55 and falls into the receiving box 57.

When dividing the strip-shaped substrate 5 with split grooves, the support plate 20, the dividing roller 18 and the like are moved vertically by the linear guide 23 as described above, and the dividing roller 18 is used.
Is moved in a state where its center substantially coincides with the center of the receiving roller 12, the pressing force of the dividing roller 18 due to the repulsive elasticity of the pressure spring 40 causes the dividing groove 3 on the strip-shaped dividing grooved substrate 5.
Add almost equally on both sides. As a result, the strip-shaped substrate 5 with split grooves can be accurately split in the vertical direction in the depth direction of the split grooves 3, and thus a good element 4 without chipping can be obtained.

Then, as described above, the pressure scale dial 4
When the pressing force of the dividing roller 18 is adjusted by rotating the second graduation plate 44, the center of the dividing roller 18 substantially coincides with the center of the receiving roller 12 as described above,
That is, since it is moved linearly, the dividing roller 18
The followability when adjusting the pressing force of can be improved, and therefore fine adjustment is possible. Moreover, the linear guide 2 is used as a guide for the linear movement of the dividing roller 18.
By using 3, the follow-up operation can be smoothly performed. Further, by using the pressure spring 40 and the pressure graduation dial 42 to adjust the pressing force of the dividing roller 18 as described above, the adjustment operation can be performed easily and reliably.

The division angle range α may be selected in the range of 3 ° to 45 ° in accordance with the material of the strip-shaped substrate with split grooves 5 and the size of the element 4. Further, as the pressing means for the dividing roller 12, an air cylinder device or the like can be used instead of the configuration of the above embodiment. Alternatively, only the belt 17 may be recessed by forming the belt 17 into a thick wall. In this case, the receiving roller 12 is made of metal,
Alternatively, it can be made of synthetic resin. Further, the centers of the dividing roller 18 and the receiving roller 12 may not be completely coincident with each other. For example, the diameter of the receiving roller 12 may be 70 m.
m and the diameter of the dividing roller 18 is 6 to 8 mm,
It is also possible to shift the center of the dividing roller 18 parallel to the center of the receiving roller 12 by about 1 to 2 mm.
Further, the auxiliary roller 13 for division may not be used depending on the size of the element 4 of the strip-shaped substrate 5 with split grooves. Further, after dividing the strip-shaped substrate 5 with split grooves, fine dust attached to the belt 17 can be removed by a brush (not shown) or the like.
Besides, the present invention can be variously modified in design without departing from the basic technical idea.

[0024]

As described above, according to the present invention,
By the pressing force of the dividing roller adjusted by the adjusting means of the pressing means, the belt or the belt and the receiving roller are recessed, and when the strip-shaped grooved substrate is conveyed by the belt, the strip-shaped grooved substrate is It is sandwiched between the splitting roller and the recessed portion of the belt supported by the receiving roller so as not to escape backward, and is reliably split along the split groove. At this time, the dividing roller is moved with its center substantially coincident with the center of the receiving roller.
The pressing force of the dividing roller adjusted by the adjusting means is applied almost evenly to the strip-shaped substrate with split grooves on both sides of the split groove, and the strip-shaped substrate with split grooves is accurately split vertically in the depth direction of the split grooves. be able to. Therefore, generation of defective products can be prevented. Further, since the center of the dividing roller is substantially aligned with the center of the receiving roller, that is, the dividing roller is moved linearly, it is possible to improve the followability when adjusting the pressing force of the dividing roller. Therefore, the pressing force of the dividing roller can be finely adjusted. Further, as a guide means of the pressing means, a supporting plate that rotatably supports the splitting roller and a linear guide that guides the movement of the supporting plate are provided, and the adjusting means of the pressing means has a screw hole. A support, a pressure casing in which a screw portion formed on the outer periphery of the support base is screwed so as to be able to move forward and backward, and a support is movably supported in the axial direction with the tip portion protruding from the pressure casing. The pressing force of the split roller is adjusted by including a pressure pin for pressing the support plate and a spring housed in the pressure casing and biasing the pressure pin in the pressing direction. In this case, it is possible to improve the follow-up performance, and the follow-up operation can be smoothly performed. Further, as the adjusting means of the pressing means, by providing a pressure graduation dial for rotating the pressure casing and adjusting the pressing force of the dividing roller by the pressure pin, the adjustment operation can be performed easily and surely. You can

[Brief description of drawings]

FIG. 1 is an overall schematic front view showing a dividing device for a strip-shaped substrate with split grooves according to an embodiment of the present invention.

FIG. 2 is an enlarged plan view of a main part showing the same dividing device.

FIG. 3 is a partially cutaway enlarged front view of a main part showing the dividing device.

FIG. 4 is a partially cutaway enlarged side view of a main part showing the dividing device.

FIG. 5 is an enlarged view of an essential part for explaining the dividing operation, showing the same dividing device.

6A is a perspective view of a ceramic grooved substrate, FIG. 6B is a perspective view of a rectangular grooved substrate formed from a ceramic grooved substrate, and FIG. 6C is a perspective view of a rectangular grooved substrate. A perspective view of a state where silver paint is applied to both long side edges is a perspective view of a state in which the strip-shaped substrate with split grooves after coating is divided into one element.

FIG. 7 is a schematic side view of essential parts showing a dividing device for a strip-shaped substrate with split grooves in a conventional example.

[Explanation of symbols]

 3 Divided Grooves 4 Element 5 Strip-shaped Divided Groove Substrate 12 Receiving Roller 13 Dividing Auxiliary Roller 15 Driving Roller 17 Belt 18 Dividing Roller 20 Support Plate 23 Linear Guide 30 Support Stand 32 Pressurizing Casing 38 Pressurizing Pin 40 Addition Pressure spring 42 Pressure scale dial 51 Tension roller

Claims (1)

[Scope of utility model registration request] 1. A receiving roller supported so as to be freely rotatable, and a strip-shaped grooved substrate is conveyed to the receiving roller, and the strip-shaped grooved substrate is conveyed along the groove. And a strip having a small diameter for splitting along the split groove by pressing the strip-shaped substrate with split grooves conveyed by the belt against the belt on the receiving roller. The dividing roller, guide means for guiding the dividing roller so as to move in a state where the center thereof substantially coincides with the center of the receiving roller, and the pressing force of the dividing roller against the belt and the receiving roller is adjusted. And a traveling means for traveling the belt, the guide means for the pressing means comprising:
It has a support plate that rotatably supports the dividing roller, and a linear guide that guides the movement of the support plate, and the adjusting means of the pressing means has a support base having a screw hole, and a screw of the support base. A pressurizing casing in which a screw portion formed on the outer periphery of the hole is screwed so as to be capable of advancing and retreating, and the pressurizing casing is supported so as to be movable in the axial direction in a state in which the tip portion is projected, and presses the support plate. And a spring for energizing the pressure pin in the pressing direction and a pressing pin housed in the pressing casing for rotating the pressing casing to apply the pressing force of the dividing roller by the pressing pin. A dividing device for a strip-shaped substrate with split grooves having a pressure dial for adjustment.