KR200419122Y1 - A switch for belt swerving - Google Patents

Abstract

The present invention relates to a meandering limit switch for stopping the belt conveyor when an error occurs in the belt conveyor, the configuration is composed of a first case and a second case formed in the housing from the side, by a bolt The first case and the second case is integrally coupled to the case portion, the ball bearing inserted into the housing and the ball bearing is inserted into the ball bearing and rotated, coupled to the switch shaft and the other side of the switch shaft formed with a screw thread on one side And a magnetic cam including a magnetic and an inner upper portion of the first case, and positioned between a contact switch operated by a rotation angle of the magnetic cam and an inner side of the magnetic cam and a ball bearing and around the switch shaft. It is fixed to one side of the magnetic cam and one side of the bearing, When the tooth shaft is rotated orthogonal to the spring and the one side of the switch shaft to restore the original form, a through hole for inserting the thread formed on the shaft of one side of the switch shaft is formed, the switch inserted into the through hole The shaft of the shaft is coupled to the vertical plate lever which is integrally formed by a nut and extending perpendicular to the vertical plate lever is formed orthogonally, and a through hole through which a screw thread formed on an axis of one side of the roller shaft can be inserted is formed. The shaft inserted into the sphere is coupled to the operating part including the upper plate lever is integrally coupled by the nut and inserted into the through-hole formed in the upper plate of the lever and coupled by the nut, the shaft of one side is formed by the screw shaft And a ball bearing inserted into one side and the other side of the roller shaft and fixed to the ball bearing and rotated. It characterized in that it comprises a roller including a roller, the conveyance carried by the conveyor belt is prevented from falling between the switch shaft and the lever, so that the switch shaft and the lever can be rotated smoothly, The magnetic switch system can further extend the service life, as well as smoothly adjust the gap between the conveyor belt and the roller to prevent the conveyor belt from being separated from the roller.

Case part operating part Roller part adjusting part

Description

Belt meander switch {A switch for belt swerving}

1 is a side view of the lever of the conventional meander switch.

Figure 2 is a side view of a conventional meander switch.

Figure 3 is an internal view showing a cam switch of a conventional meander switch.

4 is a plan view of the belt meander switch according to an embodiment of the present invention.

5 is a schematic cross-sectional view taken along line II of FIG. 4.

Figure 6 is a side view of the lever lever of the belt meander switch according to an embodiment of the present invention.

Figure 7 is a side view showing a state in which the roller portion of the belt meander switch according to an embodiment of the present invention moved to one end portion through the through hole of the upper plate lever.

8 is a side view showing a state in which the lever of the belt meander switch according to an embodiment of the present invention is moved at a constant angle.

Figure 9 is an internal view showing a magnetic switch of the belt meander switch according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: case portion 12: first case portion

14: second case portion 21: housing

51: magnetic cam 52: contact switch

54: ball bearing 53: switch shaft

57: vertical plate lever 58: top plate lever

76: roller shaft 72: roller

70: roller portion 50: operating portion

90: adjuster

The present invention relates to a belt meander switch for stopping the belt conveyor when an abnormality occurs in the belt conveyor, and more particularly concave the shape of the roller rotated by the contact of the conveyor belt toward the inner side of the roller. It is formed so as to be formed in a shape, it is possible to prevent the separation of the conveyor belt, and to form a through hole in the longitudinal direction to the central portion of the upper plate on which the shaft of the roller shaft is seated, the roller shaft at a constant distance It is possible to move to the left and right, as well as the first stop bar provided on the upper right side of the second case is provided with an adjusting device for finely adjusting the reference point of the lever, the upper portion of the second case to prevent the arc shape It is provided with a plate and provided with a prevention protrusion on the surface on which the housing is formed, and is carried by the conveyor belt. Relates to a belt meandering switch, it characterized in that the conveyed material is able to facilitate the operation of the switch shaft and the lever to prevent the inflow off

In general, such a meander limit switch is a protection device that detects a bias of the belt conveyor to one side and transmits an alarm signal or a stop signal, and is installed at both ends of the belt conveyor to prevent damage to the conveyor belt. It is a device that can prevent the abnormality of the transportation system by accident.

As described above, in the conventional meandering limit switch, as shown in FIGS. 1 to 4, the configuration includes a first case and a second case, and the first case and the second case are integrally fastened by bolts. A case bearing to be coupled, a ball bearing inserted into the housing formed inwardly from the side of the second case, a switch shaft inserted into the ball bearing, the switch shaft having a thread formed on one shaft, and the other side of the switch shaft. A cam coupled to the upper side of the first case, the switch operated by the rotational angle of the cam, located between the cam and the inner side of the ball bearing and around the switch shaft, and one side of the cam. And a spring fixed to one side of the bearing to restore the original shape when the switch shaft is rotated, and perpendicular to the egg side of the switch shaft. To achieve this, a lever coupled by a nut to a screw thread formed on an axis of one side of the switch shaft, a roller shaft coupled by a nut to an upper surface of the lever, and a ball bearing inserted and fixed to one side and the other side of the roller shaft And, it is configured to include a cylindrical columnar roller seated on the ball bearing and rotated.

In particular, the lever, as shown in Figure 1, perpendicular to the axis of one side of the switch shaft, the vertical plate is fastened and coupled by a nut, is extended to the vertical plate is formed orthogonally, the roller shaft It consists of a top plate coupled by a screw thread and a nut formed on one side of the shaft.

The vertical plate and the upper plate, the shaft of the switch shaft and the shaft of the roller shaft is inserted to form a through hole for coupling by a nut.

A screw thread is formed on the shaft of one side of each shaft, and is inserted into a through hole formed in the vertical plate and the upper plate of the lever and fastened by a nut.

The through hole is formed to be about 0.5 mm larger than the diameter of each shaft shaft, so that each shaft is smoothly inserted.

In addition, as shown in Figure 1, the outer side of the second case is provided with a first stop bar and a second stop bar for holding the reference point of the lever, the first stop bar is located on the outer upper right side of the second case, The second stop bar is located on the outer lower left side of the second case.

In addition, a support plate for installing in a mechanical device is formed below the second case, and the support plate is formed with a through hole for fastening to the mechanical device by bolts.

In addition, a side surface of the second case is provided with a through hole for supplying power to the contact switch located inside the case.

As described above, the conventional belt meander switch has the following problems.

First, between the lever and the second case adjacent to the lever, the lever is maintained at a constant distance so that the lever does not interfere with the second case when the lever rotates.

At this time, dust of the package carried by the conveyor belt falls during transportation, and flows into the gap between the lever and the second case, and the introduced falling object flows into the switch shaft which is perpendicular to the lever. When the switch shaft is not smoothly rotated or the dropped package is caught between the lever and the second case, the lever is not operated and there is a problem in that the meandering limit switch does not perform smoothly.

Secondly, the conventional belt meander switch has a limited service life due to the obsolete light of the switch, which is activated by the rotation of the cam, and tends to be complicated to install and manufacture.

Third, the through hole formed in the upper plate of the lever is formed only about 0.5 mm larger than the diameter of the shaft on one side of the roller shaft.

Therefore, the roller shaft inserted and seated in the through hole formed in the upper plate of the lever is fixed to one point without adjusting the distance from side to side according to the height of the conveyor belt.

Therefore, when the conveyor belt is driven at different positions, the conveyor belt is not exactly positioned at the center of the cylindrical columnar roller, but is positioned at the top or bottom of the roller beyond the center of the roller.

As described above, the conveyor belt is not accurately positioned at the center portion of the roller, so that the conveyor belt slides away from the cylindrical columnar roller.

Due to the above problems, the package to be transported was not transported in a timely manner, resulting in many disruptions in production.

The present invention has been proposed to solve the above problems, the object of which is to prevent the outer surface of the housing is formed with a wall-shaped prevention plate on the outer upper portion of the second case located adjacent to the lever A belt meandering switch having a protrusion to prevent a package or a foreign substance carried by the conveyor belt from falling between the switch shaft and the lever so that the switch shaft and the lever can be smoothly rotated. In providing.

Still another object of the present invention is to provide a belt meander switch that can simplify the manufacturing and installation as well as extend the life by applying the magnetic sensor to the conventional switch.

Still another object of the present invention is to provide a longitudinally extending upper plate on an upper portion of the vertical plate of the lever, and a longitudinal through hole capable of moving the shaft of the roller shaft back and forth inside a central portion of the upper plate. By forming a, it is to provide a belt meander switch, characterized in that to smoothly adjust the distance between the conveyor belt and the roller, as well as to prevent the conveyor belt from being separated from the roller.

Belt meander switch according to the present invention for achieving the above object is made of a first case and a second case formed with a housing from the side to the inside, the first case and the second case is integrally coupled by a bolt A ball bearing inserted into the case part and the housing and rotated by being inserted into the ball bearing and coupled to the switch shaft having a screw thread formed on one shaft and the other side of the switch shaft, the magnetic cam including the magnetic and the first case It is installed on the inner upper side of the contact between the switch and the magnetic cam and the inner side of the ball bearing and actuated by the rotation angle of the cam is located around the switch shaft, and fixed to one side of the magnetic cam and one side of the bearing And a spring and the switch for restoring to the original state when the switch shaft is rotated. Orthogonal to one side of the shaft, a through hole for inserting a screw thread formed on the shaft of one side of the switch shaft is formed, the vertical plate of the shaft of the switch shaft inserted into the through hole is coupled by a nut to be integral It is formed to extend perpendicular to the lever and the vertical plate lever, the through-hole is formed that can be inserted into the thread formed on the shaft of one side of the roller shaft, the shaft inserted into the through-hole is coupled by a nut to be integral Inserted into the through-hole formed in the upper plate of the lever and the operating portion including the upper plate lever is coupled by a nut, the shaft is formed on one side of the screw shaft and the ball is inserted and fixed to one side and the other side of the roller shaft It characterized in that it comprises a roller portion including a bearing and a roller that is rotated seated on the ball bearing.

In addition, the second case adjacent to the lever further comprises a cylindrical preventing projection on the surface formed with an arc-shaped preventive plate and an outer housing of the second case in the upper portion, the conveyed goods carried by the conveyor belt is It is characterized in that the switch shaft and the lever is prevented from falling in between, so that the switch shaft and the lever can be rotated smoothly.

In addition, the inner side of the central portion of the guide top plate further comprises a longitudinal through hole which can move the axis of the roller shaft back and forth, characterized in that to smoothly adjust the distance between the conveyor belt and the roller.

In addition, an outer side of the second case is provided with a first stop bar and a second stop bar for holding the reference point of the lever, the first stop bar is located on the outer upper right side of the second case, the second stop bar is the second case Located on the outer lower left side of the first stop bar is formed with a screw tab is located between the bolt and the first stop bar and the bolt is fastened to the screw tab is fastened to the bolt side one side of the first stop bar It is characterized in that it is further provided with an adjusting device composed of a nut located in the upper plate to adjust the distance between the conveyor belt and the roller adjusted more precisely.

Hereinafter, a belt meander switch according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 to 9 illustrate a belt meandering switch according to an embodiment of the present invention, FIG. 4 is a plan view of the belt meandering switch according to an embodiment of the present invention, and FIG. 5 is a schematic cross-sectional view of the I-I line of FIG. 4. 6 is a side view in which the lever of the belt meander switch according to an embodiment of the present invention is located, and FIG. 7 is a roller section of the belt meander switch according to an embodiment of the present invention through one end of the upper plate lever. 8 is a side view showing a state moved to the negative side Fig. 8 is a side view showing a state in which the lever of the belt meander switch according to an embodiment of the present invention at a predetermined angle, Figure 9 is a magnetic of the belt meander switch according to an embodiment of the present invention The internal view of the switch is shown.

As shown in the figure, the belt meander switch 100 according to the embodiment of the present invention, the case portion 10, the operation portion 50, the roller portion 70 and the adjusting device 90 It is configured to include.

The case part 10 is composed of a first case 12 and a second case 14, and becomes a body of the belt meandering switch 100.

On the outer edge of the first case 12, a plurality of through holes (not shown) for fastening with the second case 14 and the bolt 16 are formed, the through holes are formed of a screw thread (not shown) do.

A groove 20 is formed at an inner edge of the first case 12, and a rubber ring (not shown) is inserted into the groove 20.

As described above, the rubber ring is inserted into the inner groove 20 of the first case 12 when the first case 12 and the second case 14 are fastened by the bolt 16. The inside of the case 10 is to be completely sealed from the outside.

Inside the second case 14, a housing 21 is formed, and the ball bearing 32 and the bushing 42 are inserted into the housing 21, and the ball bearing 32 and the bushing 42 are inserted into the housing 21. Is inserted into the switch shaft 34.

On the outer side of the second case 14, a first stop bar 22 and a second stop bar 24, which hold a reference point of the vertical plate lever 57, are formed.

On the outer edge of the second case 14, a through hole (not shown) corresponding to the through hole formed along the outer edge of the first case 12 is formed, the through hole formed in the second case 14 Threads (not shown) are also formed.

In addition, a support plate 26 is provided below the second case 14 to be installed in the machine, and the support plate 26 is a through hole 28 for fastening to the machine by a bolt (not shown). ) Is formed.

In addition, one side of the second case 14, a through hole (not shown) for supplying power to the contact switch 52 located on the inner upper portion of the second case 14 is formed, the through hole is Threads (not shown) are formed and sealed by bolts 18.

In particular, an outer upper portion of the second case 14 adjacent to the upper plate lever 58 is provided with an arc-shaped prevention plate 29, and a cylindrical prevention protrusion is formed on the outer side of the second case in which the housing is formed. (27) is further provided.

As described above, further comprising the preventive plate 29 and the preventive protrusion 27 on the outer side of the second case 14, the conveyed material carried by the conveyor belt is a vertical plate and the switch shaft 34 It is to prevent the inflow between the lever 57, so that the switch shaft 34 and the vertical plate lever 57 can be rotated smoothly.

The operation part 50 includes a ball bearing 54 inserted into a housing 21 formed inside the second case 14 and a switch shaft 53 inserted into the ball bearing 54 and rotated. And a magnetic cam 51 coupled to the other side of the switch shaft 53, and positioned between the magnetic cam 51 and the ball bearing 54 and installed outside the switch shaft 53 to rotate. A spring (not shown) for returning the switch shaft 53 to its original shape, and a contact switch 52 positioned on an inner upper portion of the first case 12 and serving as a contact point by the rotation of the magnetic cam 51. And a orthogonal to one side of the switch shaft 53, a through hole (not shown) for inserting a thread formed on an axis of one side of the switch shaft 53 is formed, and is inserted into the through hole. The shaft of the switch shaft 53 is coupled by the nut 56 to be integral A through hole 59 extending from the straight plate lever 57 and the vertical plate lever 57 and formed at right angles, into which a screw thread formed on an axis of one side of the roller shaft 76 is inserted, is formed. The shaft inserted in the 59 is configured to include an upper plate lever 58 which is coupled by the nut 60 and becomes integral.

In particular, a screw thread (not shown) is formed on an axis of one side of the switch shaft 53.

In addition, one or more ball bearings 54 are provided in the housing 21, and a bushing 55 is provided between the ball bearings 54 to maintain the horizontality of the switch shaft 53. .

The upper plate lever 58 is formed in a plate shape on the upper portion of the vertical plate lever 57, and the through-hole 59 in the longitudinal direction is formed inside the upper plate lever 58.

In the through hole 59 formed in the longitudinal direction, the shaft 78 of the roller shaft 76 of the roller part 70 is inserted and fastened to the nut 60.

The roller portion 70 inserted into the through hole 59 formed in the longitudinal direction may move back and forth by loosening the nut 60 as necessary.

As described above, moving the roller unit 70 back and forth, when the conveyor belt is running at a different position, the conveyor belt is accurately positioned in the center of the roller 72, the conveyor belt is This is for avoiding deviation from the center of the roller 72.

The roller unit 70 is configured to include a roller 72, a ball bearing 74, and a roller shaft 76.

The roller 72 is formed in a cylindrical shape.

The roller 72 is a device for smoothly moving the conveyor belt.

Inside the roller 72, a bearing 74 is positioned, and a roller shaft 76 is inserted into the bearing 74.

A thread (not shown) is formed on one side shaft 78 of the roller shaft 76, and the shaft 78 on which the thread is formed is inserted into a through hole 59 formed in the upper plate lever 58, and a nut is provided. 60 is fastened and fixed.

The adjusting unit 90 is configured on the first stop bar 22 formed on the second case 14.

A through hole (not shown) is formed in the first stop bar 22, a thread (not shown) is formed in the through hole, and a bolt 94 is fastened to the thread.

A nut 96 is provided between the first stop bar 22 and the bolt 94.

Hereinafter, the interaction between each component of the present invention having the configuration as described above will be described in detail.

The belt meandering switch 100 of the present invention is a protection device that detects a bias of a belt conveyor and transmits an alarm signal or a stop signal, and is installed on both ends of the belt conveyor to prevent damage to the conveyor belt. It is a device that can prevent abnormality of transportation system by accident.

As described above, the belt meander switch 100 is provided on both sides of the conveyor belt, and when the conveyor belt tilts the cylindrical columnar roller 72 of the meander limit switch 100 at a predetermined angle, the roller ( The vertical plate lever 57 vertically connected to 72 is also inclined at the same angle as described above.

When the vertical plate lever 57 is inclined at a predetermined angle as described above, the switch shaft 53 orthogonally connected to the vertical plate lever 57 also rotates at the same angle as described above, and the switch shaft 53 Magnetic cam 51 coupled to the other side of the) is also rotated at the same angle as described above.

The magnetic cam 51 opens and closes the contact point of the contact switch 52, which is located inside the first case 12 of the case part 10 of the belt meander switch 100, and opens the contact switch 52. Close the power supply to the main drive that drives the conveyor belt.

According to the belt meander switch according to the present invention as described above, to prevent the conveyance carried by the conveyor belt falling between the switch shaft and the lever, so that the switch shaft and the lever can be rotated smoothly, the magnetic Due to the switch can further extend the service life, as well as smoothly adjusting the distance between the conveyor belt and the roller has the effect of preventing the conveyor belt from being separated from the roller.

The present invention has been described with reference to the embodiments shown in the accompanying drawings, which are illustrative, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom. Therefore, the true scope of the present invention should be defined only by the appended claims.

Claims (5)

A case part including a first case and a second case having a housing formed therein from a side thereof, wherein the first case and the second case are integrally coupled by a bolt; A ball bearing inserted into the housing and a ball shaft inserted into the ball bearing are rotated and coupled to a switch shaft having a screw thread formed on one shaft and the other side of the switch shaft, and having a magnetic cam including magnetic and an upper portion of the inner upper portion of the first case. Is installed in the contact switch and the magnetic cam and the inner side of the ball bearing and the periphery of the switch shaft, which is operated by the rotation angle of the magnetic cam, and is fixed to one side of the magnetic cam and one side of the ball bearing, When the switch shaft is rotated orthogonal to the spring and the one side of the switch shaft to restore the original form, a through hole for inserting the thread formed on the shaft of one side of the switch shaft is formed, inserted into the through hole Vertical plate in which the shaft of the switch shaft is integrated by a nut It is formed perpendicularly and extended to the bur and the vertical plate lever, a through-hole is formed that can be inserted into the thread formed on the shaft of one side of the roller shaft, the shaft inserted into the through-hole is coupled by a nut to be integral An operating unit including an upper plate lever; And Is inserted into the through-hole formed in the upper plate of the lever is coupled by a nut, the shaft of one side is a screw shaft and the bearing is inserted and fixed to one side and the other side of the roller shaft and the roller seated on the bearing and rotated Including; Roller part including; Belt meander switch, characterized in that the life of the switch can be extended because the switch sensor is operated when the conveyor belt is separated from the magnetic sensor. The method of claim 1, In the second case adjacent to the lever further comprises a cylindrical preventing projection on the surface formed with an arc-shaped preventive plate and an outer housing of the second case, the conveyed conveyed by the conveyor belt to the switch shaft The belt meander switch, characterized in that to prevent the flow between the lever and the lever, so that the switch shaft and the lever can be rotated smoothly. The method of claim 1, The belt meandering switch further comprises a through-hole in a longitudinal direction which moves the shaft of the roller shaft back and forth inside the central portion of the guide upper plate, to smoothly adjust the gap between the conveyor belt and the roller. The method of claim 1, The outer side of the second case is provided with a first stop bar and a second stop bar for holding the reference point of the lever, the first stop bar is located on the outer upper right side of the second case, the second stop bar is outside the second case Located at the lower left side, the first stop bar is further provided with an adjusting device for adjusting the distance between the conveyor belt and the roller adjusted in the upper plate more precisely, the conveyor belt and the roller adjusted in the upper plate. Belt meander switch characterized in that the gap can be adjusted more precisely The method of claim 4, wherein The adjusting device includes a screw tab formed on the first stop bar; A bolt fastened to the screw tab; And The belt meander switch is located between the first stop bar and the bolt, the nut is fastened to the bolt located on one side of the side of the first stop bar.

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