KR102328591B1 - Apparatus f0r testing roller of roller converyer in sinterring furnace of ceramic electronic-parts - Google Patents

Abstract

The present invention relates to a transporting roll inspecting device for a roller conveyor in a sintering furnace for ceramic electronic parts, comprising: a velocity control motor (6) installed in an inspection worktable (2); an interlocking rotational shaft (10) installed in the inspection worktable (20) and connected by a belt to the velocity control motor (6) to rotate; a straightness inspection jig (A) installed above the inspection worktable (2), supporting, in rolling, both right and left sides of a transporting roll pipe body (4) to be inspected using supporting rolling parts (14a, 14b) at both sides, and having the supporting rolling parts (14a, 14b) connected by a belt to the right and left sides of the interlocking rotational shaft (10) to rotate; a concentricity inspection jig (B) having transporting roll pipe body axis alignment fixing parts (24a, 24b) with conical rotational shafts (26a, 26b) at both sides installed at the right and left contours of a pair of supporting rolling parts (14a, 14b) above the inspection worktable (2), axially fixing both right and left side ends of the transporting roll pipe body (4) to be inspected by pressurization using the conical rotational shafts (26a, 26b) at right and left sides, having the conical shaft (26a) at one side of the transporting roll pipe body axis alignment fixing parts (24a, 24b) connected by a belt to the interlocking rotational shaft (10), and having the conical shaft (26b) at the other side installed by a forward and backward moving driving cylinder (30) to be able to move forward and backward; and an indicator (40) installed on top of the inspection worktable (2) and measuring the straightness and concentricity of the rotating transporting roll pipe body (4) to be inspected. Therefore, provided is a transporting roll inspecting device for a roller conveyor, wherein the straightness and concentricity of a transporting roll for a roller conveyor in a sintering furnace for ceramic electronic parts can be inspected at once.

Description

Transfer roll inspection device for roller conveyor of kiln for ceramic electronic parts

The present invention relates to a kiln for ceramic electronic components, and in particular, a transfer roll manufactured for a roller conveyor so that the roller conveyor operates smoothly in a tunnel-type kiln for sintering ceramic electronic components such as a multilayer ceramic capacitor (MLCC). It relates to the improvement of the device for inspection.

In general, ceramic electronic products such as multilayer ceramic capacitors (MLCCs) and piezoelectric materials are manufactured into a ceramic molded product by molding a ceramic raw material into a predetermined shape, and then subjected to a binder removal process, a firing process, and a cooling process in a firing furnace. production is complete

More specifically, the ceramic molding is calcined at a temperature of 230°C to 450°C in a firing furnace to remove the binder component, and a binder removal process in which the binder component is removed, and a temperature of 800°C to 1300°C, fired for 10 to 24 hours It is continuously subjected to a firing process, and a cooling process for cooling to a low temperature after the firing is completed. The ceramic molded product fired in the firing furnace is completed as a ceramic product by coating and forming external electrodes and terminal electrodes on the outer circumferential surface in the plating process.

The kiln for firing ceramic moldings is divided into batch type and tunnel type according to the structure. It is classified into a roller type.

The batch-type kiln is advantageous for sintering ceramic parts in the form of chips of various sizes and characteristics because various sintering conditions can be realized, but rapid temperature rise is limited. In addition, the tunnel-type kiln is excellent in terms of temperature and atmosphere stability inside the kiln because the material to be fired is moved by a pusher or a roller between the heating elements that generate constant heat.

Among these various types of kilns, the tunnel-type roller conveyor kiln is widely used to sinter ceramic electronic components such as multilayer ceramic capacitors (MLCCs).

In the tunnel-type roller conveyor type kiln, hundreds to thousands of transfer rolls made of ceramic material in the width direction over the entire length of the kiln are provided with a roller conveyor installed so that they can rotate closely. Numerous setters containing ceramic electronic component moldings (eg, multilayer thin film ceramic capacitor (MLCC) moldings, etc.) are transported on a roller conveyor in which the transport rolls are densely arranged. .

However, long-length conveying rolls such as the stick constituting the roller conveyor must have good straightness and excellent concentricity to properly convey setters. If the transfer roll is slightly curved in an arc, the transfer roll rotates causing the setters being transferred to advance obliquely or to bounce the setters. In addition, if the concentricity of the conveying roll is not good, vibration is given to the setters being conveyed, and the molded object contained in the setter is displaced by vibration, which interferes with plasticity.

The conveying roll of the roller conveyor is made of ceramic material because high fire resistance and high wear resistance are required. must be inspected

The straightness inspection and the concentricity inspection of the conveying rolls for roller conveyors need to be performed separately. If an inspection device that can collectively inspect the straightness and concentricity of the conveying rolls is developed, it will receive a great response from many people involved.

Registered Patent Publication No. 10-0828918 "Method for measuring concentricity of gear casing and measuring jig"

Accordingly, it is an object of the present invention to provide a transfer roll inspection apparatus for a roller conveyor capable of collectively inspecting the straightness and concentricity of a transfer roll for a roller conveyor in a kiln for ceramic electronic components.

In accordance with the above object, the present invention provides a transfer roll inspection apparatus for a roller conveyor of a sintering furnace for ceramic electronic components, a speed control motor installed in the inspection workbench, and an interlocking rotation shaft installed in the inspection workbench and belt-connected to the speed control motor to rotate A straightness inspection jig installed on the upper side of the stand and the inspection workbench to roll the left and right sides of the transfer roll tube body to be inspected with the supporting rolling units on both sides, and the supporting rolling units are connected by a belt to the left and right sides of the interlocking rotating shaft to rotate, and above the inspection workbench On the left and right outer sides of the pair of support rolling parts, a shaft center alignment fixing part having both conical rotation shafts is installed, and the left and right ends of the transport roll pipe body to be inspected are fixed by pressing using the left and right conical rotation shafts. One side of the conical shaft of the tube shaft alignment fixing part is belt-connected to the interlocking rotating shaft, and the other side of the conical shaft has a concentricity inspection jig installed so as to be movable forward and backward by a forward and backward driving cylinder, and an inspection target transfer roll installed on the inspection workbench and rotating. It is characterized in that it is composed of an indicator for measuring the straightness and concentricity of the tube.

In addition, the conveying roll inspection apparatus for a roller conveyor of a kiln for ceramic electronic components according to the present invention is a conveying roll tube body straightness inspection jig as the conveying roll tube body to be inspected is shaft fixed to the axis center alignment fixing part of the conveying roll tube body of the concentricity inspection jig It is characterized in that it is configured to be levitated from the support rolling part of the.

In addition, in the conveying roll inspection apparatus for the roller conveyor of the kiln for ceramic electronic components of the present invention, the axis of the left and right conical rotation shaft of the conveying roll tube body axial center alignment fixing part is placed on the support rolling part of the straightness inspection jig inside the conveying roll tube body It is characterized in that it is configured to be located in the neck,

In addition, in the conveying roll inspection apparatus for a roller conveyor of a kiln for ceramic electronic components of the present invention, one or more indicators are installed on the LM block mounted on the LM rail of the LM guide.

In addition, in the transfer roll inspection apparatus for the roller conveyor of the kiln for ceramic electronic components of the present invention, the forward/backward driving cylinder is composed of a pneumatic cylinder, and the pressure coming out of the air compressor is adjusted to be 2-3 kg/cm 2 pneumatic to be used in the pneumatic cylinder. It is characterized by having a regulator.

The present invention has the advantage of being able to collectively inspect the straightness and concentricity of the conveying roll for a roller conveyor used in a sintering furnace for ceramic electronic components as a conveying roll inspection device.

1 and 2 are perspective views of a transfer roll inspection apparatus for a roller conveyor of a sintering furnace for ceramic electronic components according to an embodiment of the present invention;
3 and 4 are front and plan configuration views of a transfer roll inspection apparatus for a roller conveyor of a sintering furnace for ceramic electronic components according to an embodiment of the present invention;
5 is a cross-sectional side view of a transfer roll inspection apparatus for a roller conveyor of a sintering furnace for ceramic electronic components according to an embodiment of the present invention;
6 is a configuration diagram of the power system of the conveying roll inspection device of the present invention;
7 is a schematic configuration diagram of a straightness inspection jig for performing a straightness inspection on a transfer roll tube body to be inspected according to an embodiment of the present invention;
8 is a schematic configuration diagram of a concentricity inspection jig for performing a concentricity inspection on a transfer roll tube body to be inspected according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are perspective views of a transfer roll inspection apparatus for a roller conveyor of a kiln for ceramic electronic components according to an embodiment of the present invention. It shows the isometric composition from a lateral point of view.

3 and 4 are front and plan views of a transfer roll inspection apparatus for a roller conveyor of a sintering furnace for ceramic electronic components according to an embodiment of the present invention, and FIG. 5 is a sintering furnace for ceramic electronic components according to an embodiment of the present invention. It is a side cross-sectional diagram of the conveying roll inspection device for a roller conveyor. And, Figure 6 is a configuration diagram of the power system of the transfer roll inspection apparatus of the present invention.

The conveying roll inspection apparatus for a roller conveyor according to an embodiment of the present invention is implemented so that the straightness and concentricity of the conveying roll tube body 4 for a roller conveyor can be collectively inspected on one inspection workbench (2).

1 to 6 together, on the inspection workbench 2 according to the present invention, a straightness inspection jig (A) and a concentricity inspection jig (B) for inspecting the transfer roll tube body 4 are installed together, and the operator It is configured so that two types of inspection can be carried out collectively on the inspection workbench (2).

A speed control motor 6 is installed in the inspection workbench 2 to provide power to the straightness inspection jig (A) and the concentricity inspection jig (B). The speed control motor 6 is connected to the interlocking rotation shaft 10 extending left and right in the inspection workbench 2 through the pulley belt 8 .

Both the straightness inspection jig (A) and the concentricity inspection jig (B) are installed separately on the upper left and right upper plates 12 of the inspection workbench (2).

The straightness inspection jig (A) is composed of a pair of left and right support rolling parts (14a, 14b) separately installed on the upper left and right upper plates (12) of the inspection work table (2). Each of the left and right supporting rolling parts 14a and 14b is connected to the left and right sides of the interlocking rotation shaft 10 by a pulley belt 16 to be rotated together. The pulley belt 16 has a configuration in which tension can be adjusted by the tension control roller 18 .

The left and right driven pulleys of the supporting rolling parts 14a and 14b protruding to the upper part of the inspection work table 2 are connected to the left and right driving pulleys of the interlocking rotating shaft 10 installed in the inspection work table 2 and the pulley belt 16, A rotating roller 20 is shaft-connected to the driven pulley. In addition, an idle roller 22 is installed next to the rotating roller 20 to support the conveying roll tube body 4 together with the rotating roller 20, so that the left and right supporting rolling portions 14a of the straightness inspection jig A are provided. ) (14b).

And the concentricity inspection jig (B) is a transfer roll tube body shaft center alignment fixing part having both side conical rotation shafts 26a and 26b on the left and right outer sides of a pair of support rolling parts 14a, 14b on the upper side of the inspection work table 2 (24a) and (24b) are provided. The left and right axial alignment fixing parts 24a and 24b are spaced farther apart than the length of the transfer roll tube body 4 to be inspected. is rotatably fixed by pressing using the left and right conical rotation shafts 26a and 26b.

That is, one conical shaft 26a of the left and right transfer roll tube shaft center alignment fixing parts 24a and 24b constituting the concentricity inspection jig B of the present invention is connected to the interlocking rotation shaft 10 by a pulley belt 28. While the shaft rotation is possible, the other conical shaft 26b is not connected to the interlocking rotation shaft 10 by a belt.

Instead, the other conical shaft 26b is provided with a forward and backward driving cylinder 30 , so that the other side conical shaft 26b is moved forward and backward using the forward and backward driving cylinder 30 . The forward and backward driving cylinder 30 is composed of a pneumatic cylinder.

And when the other conical shaft 26b presses both ends of the transfer roll tube body 4 as the operating rod of the forward and backward drive cylinder 30 advances, the transfer roll tube body 4 made of ceramic material is driven forward and backward so as not to be damaged. The cylinder 30, that is, the pneumatic cylinder is provided with a regulator (32 in FIG. 6) that adjusts the high pressure from the air compressor to be 2-3 kg/cm 2 pneumatic pressure, which is a low pressure that can be pushed slowly according to the present invention.

When the other conical shaft 26b is gradually advanced by the forward and backward driving cylinder 30, the transfer roll tube body 4 to be inspected is bitten by one side and the other conical shaft 26a, 26b, and the shaft can be fixed, After the concentricity test is completed, when the other conical shaft 26b is moved backward by the forward and backward driving cylinder 30, both sides of the shaft-fixed transfer roll tube body 4 are engaged.

In addition, an indicator 40 for measuring the straightness and concentricity of the transfer roll tube body 4 to be inspected is provided on the inspection workbench 2 .

The indicator 40 is mounted at least one or more on the rear side of the inspection work table 2 and the LM (Linear Motion) guide 42 arranged long left and right, and the indicator 40 is mounted on the rotating inspection target transfer roll tube body 4 . ), the straightness or concentricity of the conveying roll tube body (4) is measured and gauged while contacting.

On the LM rail 42a of the LM guide 42, one or more LM blocks 42b equipped with a carrying handle 44 are mounted. is installed

Therefore, the indicator 40 can obtain the measured values at the fixed position as the operator moves the position sequentially on the LM guide 42 using the transfer handle 44 and then fixes it at the desired position, and if necessary, By positioning the indicator 40 differently on the LM guide 42, it is also possible to obtain the measured values at each position at once.

7 is a schematic configuration diagram of a straightness inspection jig (A) for performing a straightness inspection on the transfer roll tube body 4 to be inspected according to an embodiment of the present invention, and FIG. 8 is an inspection according to an embodiment of the present invention. It is a schematic configuration diagram of a concentricity inspection jig (B) for performing a concentricity inspection on the target transfer roll tube body (4).

In the present invention, after performing the straightness inspection of the transfer roll tube body 4 with the straightness inspection jig A on the inspection workbench 2, the operator directly transfers the roll tube body 4 to the concentricity inspection jig B without using a hand. ) to check the concentricity of

That is, in the present invention, as shown in FIG. 7 , the axis line (XL) of the left and right conical rotation shafts 26a and 26b of the transfer roll tube body shaft center alignment fixing part 16, which is a concentricity inspection jig (B) configuration, is a straightness inspection jig. (A) is configured to be positioned at the inner diameter of the conveying roll tube body 4 placed on the supporting rolling portions 14a and 14b.

Therefore, when the operator inspects the straightness with the straightness inspection jig (A) as in FIG. 7, the left and right conical rotation shafts (26a, 26b), which are the concentricity inspection jigs (B), are spaced apart from the transfer roll tube body (4). Because of this relationship, it is placed on the transfer roll tube body 4 on the support rolling parts 14a and 14b of the straightness inspection jig A, so that it does not interfere with idle rotation.

In the straightness inspection, the straightness of the conveying roll tube body 4 rotating on the support rolling parts 14a and 14b while using a plurality of indicators 40 or moving the positions in the longitudinal direction with one indicator 40 is measured. can be measured

After completing the straightness inspection using the straightness inspection jig (A), to measure the concentricity with the concentricity jig (B), the conical rotation shaft of the other side of the concentricity inspection jig (B) configuration of the transfer roll tube body axial center alignment fixing part 16 What is necessary is just to move forward (26b) using the forward/backward driving cylinder (30).

Then, after completing the straightness inspection, the conveying roll tube body 4 placed on the supporting rolling parts 14a and 14b is, as shown in FIG. It is bitten by the shaft and fixed, but the transfer roll tube body 4 is levitated from the support rolling parts 14a and 14b of the straightness inspection jig A by the interference exclusion separation height (G).

In the case of concentricity inspection, the conveying roll tube body 4 is bitten by the left and right conical rotation shafts 26a, 26b, which are the components of the concentricity inspection jig (B), and rotates. (4) also rotates, but does not interfere with the transfer roll tube body (4).

Therefore, by using the concentricity jig (B) and the indicator 40, it is possible to measure the concentricity of the rotating conveying roll tube body (4).

Although specific embodiments have been described in the above description of the present invention, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be determined by the described embodiments, but should be determined by the claims and equivalents to the claims.

(2)-- Inspection workbench (4)-- Transfer roll tube body to be inspected
(6)-- Speed control motor (8)-- Pulley belt
(10)-- Interlocking rotation shaft (12)-- Top plate
(14a)(14b)-- Support rolling part (16)-- Pulley belt
(18)-- Tension control roller (20)-- Rotary roller
(22)-- Idle roller (24a) (24b)-- Axial alignment fixing part
(26a)(26b)-- Conical Shaft (28)-- Pulley Belt
(30)-- Forward/backward drive cylinder (32)-- Regulator
(40)-- Indicator (42)-- LM Guide
(A)-- Straightness inspection jig (B)-- Concentricity inspection jig

Claims (5)

In the conveying roll inspection apparatus for a roller conveyor of a kiln for ceramic electronic components,
A speed control motor installed in the inspection workbench,
An interlocking rotary shaft that is installed in the inspection workbench and rotates by being belt-connected to the speed control motor;
A straightness inspection jig that is installed on the upper side of the inspection workbench and rolls the left and right sides of the transfer roll tube body to be inspected with the support rolling parts on both sides, and the support rolling parts are belt-connected to the left and right sides of the interlocking rotation shaft to rotate;
On the upper side of the inspection workbench, on the left and right outer sides of the pair of support rolling parts, a shaft center alignment fixing part having both conical rotation shafts is installed, and the left and right ends of the transport roll tube body to be inspected are fixed by pressing the left and right conical rotation shafts. Concentricity inspection jig installed so that one side of the conical shaft of the transfer roll tube body axial alignment fixing part is belt-connected to the interlocking rotary shaft and the other side of the conical shaft is movable forward and backward by a forward and backward driving cylinder;
A transfer roll inspection device for a roller conveyor of a kiln for ceramic electronic components, characterized in that it is installed on an inspection workbench and consists of an indicator for measuring the straightness and concentricity of a rotating transfer roll tube body to be inspected.
The method according to claim 1, characterized in that the transfer roll tube body is configured to float in the air from the support rolling part of the straightness inspection jig as the transfer roll tube body to be inspected is shaft-fixed to the axis alignment fixing part of the transfer roll tube body of the concentricity inspection jig. Transfer roll inspection device for roller conveyors of kilns for ceramic electronic components.
[Claim 3] The ceramic electronic component according to claim 2, wherein the axis of the left and right conical rotation shaft of the transfer roll tube body axial center alignment fixing part is positioned at the inner diameter of the transfer roll tube body mounted on the support rolling part of the straightness inspection jig. Transfer roll inspection device for roller conveyors in kilns.
[3] The transfer roll for a roller conveyor of a kiln for ceramic electronic components according to claim 1 or 2, wherein one or more indicators are installed on one or more LM blocks mounted on the LM rail of the LM guide. inspection device.
[Claim 3] The ceramic electronics of claim 1 or 2, wherein the forward/backward driving cylinder is composed of a pneumatic cylinder and includes a regulator that adjusts the pressure coming out of the air compressor to be 2~3kg/cm2 pneumatic pressure to be used in the pneumatic cylinder. Transfer roll inspection device for roller conveyors of kilns for parts.

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