JPH0657599U - Substrate splitting device with rectangular slits - Google Patents

Abstract

(57) [Summary] [Purpose] A strip-shaped substrate with split grooves can be split along the split grooves reliably and accurately, and fine adjustment of the pressing force of the split roller can be performed. To provide the dividing device. [Structure] A dividing roller 18 that conveys the strip-shaped substrate 5 with a groove 17 to a freely rotatable receiving roller 12 by a belt 17 has its center substantially aligned with the center of the receiving roller 12 by a linear guide 23. The belt 1 on the roller 12 for receiving the pressing force of the roller 18 for division.
The strip-shaped substrate 5 with split grooves placed on the substrate 7 is evenly added on both sides of the split groove. The support casing 30 is provided with a pressurizing casing 32 having a pressurizing pin 38 that is biased by a pressurizing spring.
It is screwed so as to be capable of advancing and retreating in the screw hole, and the pressing force of the dividing roller 18 is adjusted by advancing and retracting the pressing casing 32. The pressurizing scale dial 42 is operated to rotate the pressurizing casing 32 to move it forward and backward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides a strip-shaped substrate with a split groove, for example, a ceramic substrate with a strip-shaped split groove for forming a square chip fixed resistor, square chip capacitor, etc. The present invention relates to a dividing device used for dividing into.

[0002]

[Prior art]

 As an example, the manufacturing order of the rectangular chip fixed resistor will be described. The ceramic substrate 1 shown in FIG. 6 (a) is preliminarily formed with split grooves 2 and 3 (where the spacing between the split grooves 2 is wider than the spacing between the split grooves 3) in the form of vertical and horizontal grids. It is divided into sections and fired, the resistance paste is applied to one surface on the side of the split grooves 2 and 3, and trimming, application of a surface protective coating and marking are performed. This ceramic substrate 1 with split grooves is divided along the split groove 2 to form a strip-shaped substrate 5 with split grooves as shown in FIG. 6B. As shown in FIG. 6 (c), a silver paint 6 which will serve as a terminal is applied to the peripheral edge and dried. After that, the strip-shaped substrate 5 with the dividing grooves is divided along the dividing grooves 3 into each element 4 as shown in FIG.

Then, in order to divide the ceramic substrate 1 with slits into strip-shaped substrates 5 with slits, the applicant of the present invention firstly discloses in Japanese Utility Model Application No. 60-176547. No. 253 68) is used. That is, both sides of the ceramic grooved substrate 1 are sandwiched between the first and third belts and the second and fourth belts so as to be parallel to the grooved portions 3 and conveyed. At the body position, the first and third belt sides hold the ceramic slit grooved substrate 1 in a state of being sandwiched, and the second and fourth belt sides release the ceramic slit grooved substrate 1. By bending the substrate 1 with split grooves along the dividing rotary member, the substrate 1 with split slit grooves 5 is split along the split grooves 2. At this time, as described above, since the ceramic substrate 1 with the split groove is pressed only by the first and third belts on one side, no strain force is applied over the entire length of the split groove 2 and the split groove 2 is not applied. Can be reliably divided along.

In order to further divide the strip-shaped substrate 5 with split grooves into the respective elements 4 along the split grooves 3, 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 hung between the receiving roller 71 and the rubber driving roller 72. A base of the arm 74 is rotatably supported by the bearing 75, and a small-diameter split roller 76 is rotatably supported by the tip of the 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. As the adjusting screw 78 rotates forward and backward, the pressing force of the dividing roller 76 on the belt 73 and the receiving roller 71 is adjusted, 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 dividing roller 76 and the recessed portion of the belt 73 whose back is supported by the receiving roller 71, and the split groove 3 is formed. Can be divided for each element 4.

[0006]

[Problems to be solved by the device]

 However, as in the above-described conventional example, the splitting roller 76 is supported at the tip of the arm 74 rotatably supported by the bearing 75, and the pressure applied to the arm 74 is adjusted by advancing and retracting the adjusting screw 78 to divide the splitting roller 76. In the configuration in which the pressing force of the roller 76 on the belt 73 and the receiving roller 71 is adjusted, the pressing force of the dividing roller 76 is in the tangential direction of the receiving roller 71, and the strip-shaped substrate 5 with split grooves is provided on both sides of the split groove 3. It is not added almost evenly, but it is added diagonally. Therefore, the strip-shaped substrate 5 with split grooves cannot be split in the vertical direction in the depth direction of the split groove 3, and there is a risk of cracking in an oblique direction and a defective product. Further, the rotation of the arm 74 due to the forward / backward movement of the adjusting screw 78 causes a loss due to the bearing 75, resulting in poor followability. 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 in the vertical direction in the depth direction of the split grooves. It is possible to prevent the occurrence of cracks and to perform fine adjustment by improving the followability when adjusting the pressing force of the dividing roller. It is intended to be provided.

[0008]

[Means for Solving the Problems]

 The technical means of the present invention for achieving the above-mentioned object is to carry a receiving roller rotatably supported and a strip-shaped grooved substrate to the receiving roller. A flexible belt for dividing the strip-shaped grooved substrate along the split groove, and the strip-shaped grooved substrate conveyed by the belt on the receiving roller. A small-diameter splitting roller for pressing the belt to split it along the split groove, and guiding means for guiding the splitting roller so that the splitting roller moves in a state where its center substantially coincides with the center of the receiving roller, and It is provided with a pressing means having an adjusting means for adjusting a pressing force of the dividing roller against the belt and the receiving roller, and a traveling means for traveling the belt.

The guide means of the pressing means includes a support plate that rotatably supports the splitting roller and a linear guide that guides the movement of the support plate, and the adjusting means of the pressing means has screw holes. A support base, a pressurizing casing in which a screw part formed on the outer periphery of a screw hole of the support base is screwed so as to be able to move forward and backward, and the pressurizing casing moves in the axial direction with the tip part protruding. A pressure pin that is movably supported and that presses the support plate, and a spring that is housed in the pressure casing and that biases the pressure pin in the pressing direction may be provided.

Further, the adjusting means of the pressing means may include a pressure graduation dial that rotates the pressure casing and adjusts the pressing force of the dividing roller by the pressure pin.

The dividable angle range can be selected in the range of 3 degrees to 45 degrees.

[0012]

[Action]

 According to the present invention configured as described above, the belt, or the belt and the receiving roller are recessed by the pressing force of the splitting roller adjusted by the adjusting means of the pressing means, and the strip-shaped split groove is formed by the belt. When the substrate is transported, this strip-shaped substrate with split grooves is sandwiched between the splitting roller and the recessed part of the belt that is supported by the receiving roller so that it does not escape backward, and each element along the split groove is separated. Definitely divided. At this time, since the dividing roller is moved in such a manner 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. Moreover, since the center of the dividing roller is substantially aligned with the center of the receiving roller, that is, it is moved linearly, the followability when adjusting the pressing force of the dividing roller can be improved. .

[0013]

【Example】

 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 an essential part, and FIG. 3 is an essential part. FIG. 4 is a partially cutaway enlarged side view of the 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. A belt 17 is endlessly hung on each of the rollers 12 to 16. The driving roller 15 is linked to a motor (not shown), and the driving 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 periphery and is formed to have a large diameter. The belt 17 is made 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.

A splitting roller 18 is provided above the receiving roller 12, the splitting roller 18 is formed to have a small diameter, and the center of the splitting roller 18 is aligned with the center of the receiving roller 12 by the guide means of the pressing means. It is guided so as to move in the vertical direction in a state of being substantially coincident, and the pressing force on the belt 17 and the receiving roller 12 is adjusted by the adjusting means of the pressing means, and the receiving roller 12 and the belt 17 are recessed (see FIG. 5). ) Is configured to be.

Explaining in detail, the split roller 18 has a shaft 19 protruding on both sides thereof rotatably supported by a forked end 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 base 25 is fixed to the support plate 24 attached to the machine frame 1 by the screw 26, the linear movement base 27 is supported by the linear guide base 25 via the ball 28 so as to be vertically movable, and the linear movement is performed. The support plate 20 is fixed to the base 27 with screws 29. A support base 30 is fixed to the machine frame 1, and a screw hole 31 is formed in the support base 30. A screw portion 34 formed on the outer periphery of the cylindrical body 33 of the pressurizing casing 32 is screwed into the screw hole 31 so as to be able to move forward and backward in the vertical direction. In the pressure casing 32, a bottom plate 35 is fixed inside the lower end of the cylindrical body 32, and a cap screw 37 serving as a top plate is screwed to a screw portion 36 formed on the inner periphery of the upper portion of the cylindrical body 32 so that the position can be adjusted. There is. A pressure pin 38 is movably supported in the pressure casing 32 in an axial direction, that is, a vertical direction, and a tip end portion of the pressure pin 38 is formed in a hole 39 formed in a central portion of the bottom plate 5 of the pressure casing 32. Is projected downward from. A pressurizing spring 40 is housed in the pressurizing casing 32, and the pressurizing spring 40 is interposed between the cap screw 37 and the head of the pressurizing pin 38 in a compressed state so that the pressurizing pin 38 moves downward. Pressurized. A receiving portion 41 is fixed to the side of the supporting plate 20, and the tip of the pressure pin 38 is pressed against the receiving portion 41 by the repulsive elasticity of the pressure spring 40, whereby the supporting plate 20, the dividing roller 18 and The linear moving table 27 is pressed downward along the linear guide table 25. At this time, the repulsive elasticity of the pressure spring 40 is adjusted by adjusting the position of the pressing screw 37, and the pressing force of the dividing roller 18 or the like, that is, the dividing roller 18 against the belt 17 and the receiving roller 12. The pressing force is adjusted.

The pressing force of the dividing roller 18 with respect to the belt 17 and the receiving roller 12 is adjusted by a pressure scale dial 42. 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 number of scales 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, etc., and is moved forwards and backwards with respect to the support base 30 to apply pressure to the support plate 20, etc. The pressing force of the roller 18 can be adjusted. At this time, one rotation of the graduation plate 44 corresponds to one graduation due to 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 pressing force of the dividing roller 18 can be set to 100 g by, for example, 1/10 rotation of the scale 44, and the reproducibility can be improved.

The dividing auxiliary roller 13 is arranged so that its position can be adjusted in front of the receiving roller 12 and the dividing roller 18 in the traveling direction of the belt 17, and is conveyed by this belt 17. To divide along the dividing groove 3 with respect to the center of the dividing roller 18 so that the dividing roller 18 is along an angle range of 3 to 45 degrees as a sufficient divisible angle range α. The belt 17 is set so as to be guided.

The base of the arm 49 is rotatably supported on the machine frame 11 by a bearing 50 between the drive roller 15 and the guide roller 16. 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, and an adjusting screw 53 is screwed onto the female screw 52 so as to be able to move forward and backward. The pivoting position of the arm 49 is adjusted by advancing and retracting the adjusting screw 53, and the pressing force of the tension roller 51 against the belt 17, that is, the tension of the belt 17 is adjusted.

At the upper part of the belt 17 between the guide roller 16 and the receiving roller 12, a guide 54 is attached to the machine frame 11, and the guide 54 conveys the strip-shaped substrate 5 with the split grooves. The tilt is corrected. A discharge chute 55 is attached to the machine frame 11 under the guide rollers 14, and a receiving box 57 is provided on a support base 56 which is located below the discharge chute 55 and attached to the machine frame 11. Is detachably supported.

The operation of the above configuration will be described below. On the upper part of the guide roller 16, the strip-shaped grooved substrate 5 supplied onto the belt 17 is conveyed as the belt 17 travels, and during this time, the inclination of the strip-shaped grooved substrate 5 is corrected by the guide 54. To be done. 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 split grooved substrate 5 conveyed as described above includes a dividing 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 divided along the dividing roller 18 in order to divide it. Although the angle range from the center of the splitting roller 18 is insufficient, the belt 17 is guided by the splitting auxiliary roller 13 as described above, and the strip-shaped substrate 5 with the split groove is placed with respect to the center of the splitting roller 18. Since the splitting angle range α is sufficient for the splitting, that is, along the splitting roller 18 within the range of 3 ° to 45 °, the strip-shaped grooved substrate 5 is wound in close contact with the splitting roller 18. Thus, it can be reliably divided along the split groove 3.

As described above, the belt 17, the receiving roller 12, the dividing roller 18, the dividing auxiliary roller 13, the movement guide means of the dividing roller 18 including the linear guide 23, and the pressure casing 32. , A pressure pin 38, a pressure spring 40, a pressure graduation dial 42, and the like, the pressure adjusting means of the dividing roller 18, the tension roller 51, and the pressure adjusting means 52, 53 of the tension roller 51. By the action, the interval between 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 groove 3. In the case of the relatively large element 4 in which the spacing between the split grooves 3 of the strip-shaped substrate 5 with split grooves is comparatively large, a dividing roller 18 having a slightly larger diameter is used to ensure the alignment along the split grooves 3. It is possible to divide the element 4 of various sizes by selecting and using the dividing 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 the strip-shaped substrate 5 with split grooves is divided, the support plate 20, the dividing roller 18, etc. are moved vertically by the linear guide 23 as described above, and the center of the dividing roller 18 is received. Since the moving roller 12 is moved so as to substantially coincide with the center, the pressing force of the dividing roller 18 due to the repulsive elasticity of the pressure spring 40 is applied to the strip-shaped grooved substrate 5 substantially evenly on both sides of the groove 3. . 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 groove 3, and thus a good element 4 without chipping can be obtained.

When the pressing force of the dividing roller 18 is adjusted by rotating the graduation plate 44 of the pressure graduation dial 42 as described above, the center of the dividing roller 18 receives the dividing roller 18 as described above. Since the roller 12 is moved substantially linearly with respect to the center of the roller 12, that is, it is moved linearly, the followability when adjusting the pressing force of the dividing roller 18 can be improved, and therefore fine adjustment is possible. . Moreover, by using the linear guide 23 as a guide for the linear movement of the dividing roller 18, the follow-up operation can be smoothly performed. Further, as described above, by using the pressure spring 40 and the pressure graduation dial 42 for adjusting the pressing force of the dividing roller 18, the adjustment operation can be performed easily and accurately.

It should be noted that the division angle range α may be selected in the range of 3 to 45 degrees depending on the material of the strip-shaped substrate 5 with split grooves and the size of the element 4. Further, as a 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 may be made of metal or 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, when the diameter of the receiving roller 12 is 70 mm and the diameter of the dividing roller 18 is 6 to 8 mm, It is also possible to shift the center of the working roller 18 parallel to the center of the receiving roller 12 by about 1 to 2 mm. Further, the auxiliary split roller 13 may not be used depending on the size of the element 4 of the strip-shaped grooved substrate 5. Further, after the division of 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.

[0026]

[Effect of device]

 As explained above, according to the present invention, 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 provided with the strip-shaped split groove substrate. When the sheet is conveyed, this strip-shaped substrate with split grooves is sandwiched between the dividing roller and the recessed portion of the belt that is supported by the receiving roller so as not to escape backward, and is reliably divided along the dividing groove. . At this time, since 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. Almost evenly added on both sides of the groove, the strip-shaped grooved substrate can be accurately divided vertically in the depth direction of the groove. Therefore, generation of defective products can be prevented. Further, since the dividing roller is moved linearly, that is, the center of the dividing roller substantially coincides with the center of the receiving roller, the followability when adjusting the pressing force of the dividing roller can be improved. it can. Therefore, the pressing force of the dividing roller can be finely adjusted.

Also, As a guide means of the pressing means, a supporting plate that rotatably supports the dividing 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 base, a pressure casing in which a screw hole formed on the outer periphery of the support base is screwed so as to be capable of advancing and retreating, and a support is movably supported in the axial direction with the tip portion protruding from the pressure casing. The pressurizing pin for pressing the support plate and the spring housed in the pressurizing casing for urging the pressurizing pin in the pressing direction are used to adjust the pressing force of the splitting roller. It is possible to improve the follow-up performance when doing, and to smoothly perform the follow-up operation.

Further, as the adjusting means of the pressing means, a pressure scale dial for adjusting the pressing force of the dividing roller by the pressure pin is provided by rotating the pressure casing, so that the adjusting operation can be performed easily and reliably. Can be done.

[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 rectangular grooved substrate. Perspective view of silver paint applied to both long side edges. (D) is a perspective view of the post-painted strip-shaped grooved substrate 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 Split Groove 4 Element 5 Strip-shaped Split Groove Substrate 12 Receiving Roller 13 Splitting Auxiliary Roller 15 Driving Roller 17 Belt 18 Splitting 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 (3)

[Scope of utility model registration request] 1. A receiving roller which is 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 provided 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. A device for dividing a strip-shaped substrate with split grooves, which comprises a pressing unit having an adjusting unit for adjusting the belt and a running unit for running the belt. 2. The guide means of the pressing means comprises a support plate for rotatably supporting the dividing roller and a linear guide for guiding the movement of the support plate, and the adjusting means of the pressing means has a screw hole. A support base, a pressurizing casing in which a screw portion formed on the outer periphery of a screw hole of the support base is screwed so as to be capable of advancing and retreating, and an axially movable state with the tip portion protruding from the pressurizing casing The strip-shaped split groove according to claim 1, further comprising: a pressure pin that is supported and presses the support plate; and a spring that is housed in the pressure casing and biases the pressure pin in a pressing direction. Substrate dividing device. 3. The strip-shaped substrate with split grooves according to claim 2, wherein the adjusting means of the pressing means comprises a pressure graduation dial for rotating the pressure casing and adjusting the pressing force of the dividing roller by the pressure pin. Splitting device.