JP5872384B2 - Grinding belt changing device and grinding belt changing method - Google Patents

Description

  The present invention relates to an apparatus for exchanging a grinding belt provided in a grinding apparatus and a grinding belt exchanging method.

  Conventionally, a grinding device including a grinding belt wound around a plurality of pulleys is known (see, for example, Patent Document 1). This grinding belt needs to be replaced after a predetermined number of grindings.

JP 2012-30301 A

  Conventionally, this grinding belt has been manually replaced. However, it takes time to replace the grinding belt, and during that time, the grinding apparatus is stopped and cannot be used.

  In view of the above, an object of the present invention is to provide a grinding belt exchanging apparatus and a grinding belt exchanging method capable of shortening the stop time of the grinding apparatus accompanying the exchange of the grinding belt as much as possible.

To achieve the above object, the present invention provides a grinding belt replacement device for replacing the grinding belt grinding device and a grinding belt which is wound around a plurality of pulleys to said plurality of pulleys, the grinding belt replacement device Is provided with a rotating member that is rotatable along the peripheral surface of the pulley, and in a state where the grinding belt is wound around the pulley, a position where the pulley and the grinding belt are in contact with each other is defined as a contact position. said pulley and said grinding belt is the position of non-contact as the non-contact position, wherein the pivoting member is thereby positioned in the contact position, is inserted the pivot member between the grinding belt and the pulley, the grinding belt is wound around the rotating member disengaged from the pulley, the contact state between the grinding belt and the rotary member is in contact, it is positioned the rotating member to the non-contacting position It is, said grinding belt is wound around said pulleys, wherein said rotating member and the grinding belt can be freely switched to a non-contact state in which a non-contact.

Further, the grinding belt mounting method of the present invention, by using the grinding belt switching apparatus along the peripheral surface of a plurality of pulleys rotatable pivot member is provided which grinding belt is wound a grinding apparatus, wherein In a state where the grinding belt is wound around the pulley, a position where the pulley and the grinding belt are in contact is a contact position, and a position where the pulley and the grinding belt are not in contact is a non-contact position. the by is positioned in the non-contact position, wherein the grinding belt is wound on the pulley, such that the pivot member and the grinding belt is in a non-contact state in which a non-contact, the said rotating member and removal preparation step of placing against the pulley, by positioning the rotating member to the contact position, is inserted the pivot member between the grinding belt and the pulley, the grinding belt is the The wound to the rotating member disengaged from over Li, is moved so that the contact state between the grinding belt and the rotary member is in contact, remove the support of the rotating member supporting the grinding belt And a separation step of separating the rotating member from the pulley and detaching the grinding belt from the pulley.

Further, the grinding belt mounting method of the present invention uses a grinding belt exchange device provided with a rotating member that is rotatable along each peripheral surface of a plurality of pulleys around which the grinding belt of the grinding device is wound. In the state where the grinding belt is wound around the pulley, the position where the pulley and the grinding belt are in contact is the contact position, and the position where the pulley and the grinding belt are not in contact is the non-contact position. by positioning the member in the contact position, said rotating member is inserted between the grinding belt and the pulley, the wound to the rotating member and the grinding belt is disengaged from the pulley, the a contact state with the rotating member and the grinding belt is in contact, by winding the grinding belt to the rotary member, the mounting preparation step of placing said rotating member relative to the pulley, the rotating member Serial be to position the non-contact position, wherein the grinding belt is wound around the pulley, to move the rotating member so that the grinding belt and the rotary member is in a non-contact state in which a non-contact, said The pulley includes an attachment support step for supporting the grinding belt, and a separation step for separating the rotating member from the pulley.

  According to the present invention, first, in a non-contact state, the rotating member is arranged corresponding to each pulley. Then, by rotating the rotating member to switch from the non-contact state to the contact state, the rotating member is inserted between the pulley and the grinding belt, and the grinding belt is detached from the pulley and wound around the rotating member. It will be turned. And if a rotation member is made to detach | leave from each pulley, a grinding belt can be removed from a pulley more easily than before.

  When the grinding belt is attached to the pulley of the grinding apparatus, first, a rotating member that is in a contact state and is wound with the grinding belt is disposed in correspondence with each pulley. Then, by rotating the rotating member to switch from the contact state to the non-contact state, the rotating member comes out from between the pulley and the grinding belt, and the grinding belt is wound around the pulley.

  And if a rotating member is made to detach | leave from each pulley, a grinding belt can be attached to a pulley more easily than before. Further, the grinding belt exchange device can wind the grinding belt around the rotating member during the grinding operation of the grinding device. Therefore, the grinding belt can be easily replaced, and the grinding apparatus can be stopped for a relatively short time.

  Further, in the grinding belt exchanging device of the present invention, a driven actuator such as a sprocket is provided on the rotating shaft of the rotating member, and a driving belt such as a chain is wound around the driven body to move the driving belt forward and backward. Is preferably provided. According to such a configuration, a plurality of rotating members can be rotated by one rotating actuator.

  Further, when the rotation angle of the rotation member is different, it can be dealt with by changing the diameter of the follower such as a sprocket.

The perspective view which shows embodiment of the grinding belt exchange apparatus of this invention. Explanatory drawing which shows the back surface of the grinding belt exchange apparatus of this embodiment. Explanatory drawing which shows typically the contact state of the grinding belt exchange apparatus of this embodiment. Explanatory drawing which shows typically the non-contact state of the grinding belt exchange apparatus of this embodiment.

  The grinding belt exchanging device 1 according to the embodiment of the present invention includes a rectangular frame 2 and six rotating members 31 and 32. The rotating members 31 and 32 are formed in a circular arc plate shape, and are provided on the bottomed cylindrical bodies 31a and 32a so as to extend along the central axis from the peripheral edges of the openings of the bottomed cylindrical bodies 31a and 32a. .

  The bottomed cylindrical bodies 31 a and 32 a are rotatably fixed to the front surface 2 a (front surface) of the frame 2 via the rotation shaft 33. The rotation shaft 33 penetrates the back surface 2b (back surface) on the opposite side of the frame 2, and driven bodies 35 and 36 made of sprockets are provided in the penetration portion of the rotation shaft 33. A drive belt 37 made of a roller chain is wound around each follower 35, 36 made of a sprocket. The drive belt 37 formed of a roller chain can be moved forward and backward by a rotation actuator 38. As a result, the rotating members 31 and 32 rotate via the rotating actuator 38, the drive belt 37 formed of a roller chain, the driven bodies 35 and 36 formed of a sprocket, the rotating shaft 33, and the bottomed cylindrical bodies 31a and 32a. It is supposed to be movable.

  The two bottomed cylindrical bodies 31a arranged on the right side of FIG. 1 are formed to have a larger diameter than the other four bottomed cylindrical bodies 32a. Further, since it is sufficient that the two bottomed cylindrical bodies 31a rotate by 135 ° as shown in FIG. 4, a driven body 35 made of a sprocket provided on the back surface 2b corresponding to the bottomed cylindrical body 31a. (The two on the left side in FIG. 2) are also formed with a larger diameter compared to the driven body 36 made of the sprocket of the other bottomed cylindrical body 32a.

  Then, when the other four bottomed cylindrical bodies 32a are rotated 180 °, the diameters of the driven bodies 35 and 36 made of two sprockets (this book) so that the two bottomed cylindrical bodies 31a rotate 135 °. In the invention, the diameter of the follower is defined as including the number of sprocket teeth).

  The grinding belt exchanging device 1 is used in combination so that the back surface 2b of the frame 2 is overlapped, and is connected by upper and lower connecting plates 21 and 22. And it is comprised so that it can rotate 180 degrees by the rotating apparatus (illustration omitted) connected to the upper end.

  As schematically shown in FIGS. 3 and 4, seven pulleys 11 and 11 ′ of the grinding apparatus 10 are provided. A grinding belt 12 is wound around the pulley 11, and by rotating the pulley 11, the grinding belt 12 is rotated to grind the object.

  The pulley 11 located at the left center of FIGS. 3 and 4 is movable in the lateral direction of FIGS. 3 and 4 by an actuator (not shown). Thereby, the tension of the grinding belt 12 can be adjusted.

  A pair of oscillating pins 4 is provided at a portion corresponding to the tension adjusting pulley 11 ′ of the grinding belt changing device 1. The swing pin 4 is provided at the tip of the wing piece 4b that operates to flutter as the swing pin actuator 4a moves forward and backward. When the blade piece 4b is moved to the closing side, the interval between the swing pins 4 is set to be smaller than the diameter of the tension adjusting pulley 11 '. Further, when the blade piece 4b is moved to the opening side, the interval between the swing pins 4 is set to be larger than the diameter of the tension adjusting pulley 11 '.

  The auxiliary pins 5 are also provided in the vicinity of the bottomed cylindrical body 32a corresponding to the pulleys 11 positioned on the left and upper sides in FIGS. The auxiliary pin 5 is provided at the tip of an arm 51 that is swingably provided on the frame 2. Further, an urging means 52 (a helical spring) for urging the distal end of the arm 51 outward is provided at the distal end of the arm 51. 3 and 4, the bottomed cylindrical body 32a corresponding to the pulley 11 located on the upper left side and the lower side of the arm 51 is opposed to the urging force of the urging means 52 when the rotating member 32 is in contact. A locking rod 53 is provided for rocking inward.

  The locking bar 53 rotates together with the bottomed cylindrical body 32a, and the locking bar 53 is set so as not to contact the arm 51 when the rotating member 32 is in a non-contact state. Further, the locking bar 53 moves in an arc shape with the rotation of the bottomed cylindrical body 32a. Therefore, the arm 51 is provided with an arc-shaped notch 51a so that the position of the arm 51 does not move while the locking bar 53 is in contact with the arm 51, and the locking bar 53 is abutted against the arc-shaped notch 51a. Touching. Accordingly, it is possible to prevent the position of the arm 51 from changing while the locking rod 53 is in contact with the arm 51.

  On the peripheral surface of the pulley 11, a position where the pulley 11 and the grinding belt 12 contact is a contact position, and a position where the pulley 11 and the grinding belt 12 are not in contact is a non-contact position. By moving the pivoting actuator 38 back and forth, it is possible to switch between a contact state where the pivot members 31 and 32 are positioned at the contact position and a non-contact state where the pivot members 31 and 32 are positioned at the non-contact position. .

  Next, with reference to FIG. 3 and FIG. 4, the operation of the grinding belt replacement device 1 of the present embodiment and the grinding belt replacement method using this device will be described.

  First, a method for attaching the grinding belt 12 to the grinding apparatus 10 will be described. First, the rotating members 31 and 32 are brought into a contact state, and the grinding belt 12 is wound around the rotating members 31 and 32. Then, as shown in FIGS. 3 and 4, the bottomed cylindrical bodies 31a and 32a and the pulley 11 are opposed to each other so that the rotating members 31 and 32 are along the peripheral surface of the pulley 11. 1 is installed in the grinding apparatus 10 ("preparation process").

  Then, the oscillating pin actuator 4a is operated to open the oscillating pin 4 and bring the grinding belt 12 into contact with the tension adjusting pulley 11 'as shown by a broken line in FIG.

  Then, as shown in FIG. 4, the rotation actuator 38 on the back surface 2 b is operated to operate the drive belt 37, and the rotation members 31 and 32 are rotated along the peripheral surface of the pulley 11. Here, with the rotation of the rotation members 31 and 32, the rotation members 31 and 32 are switched to the non-contact state, and the grinding belt 12 is switched to the state wound around the pulley 11. At this time, the tension of the grinding belt 12 is lowered. For this reason, the tension adjusting pulley 11 located at the left center is moved to adjust the tension of the grinding belt 12 to be appropriate.

  Further, since the auxiliary pins 5 of the rotating members 31 and 32 positioned on the left and upper sides are also disengaged from the arm 51 and the locking rod 53, they are moved outward by the urging force of the urging means 52 and ground. The belt 12 is not in contact with the belt 12. The above corresponds to the “attachment support step” in the present embodiment.

  Then, the grinding belt exchange device 1 is separated from the grinding device 10 (“separation process”), and the mounting of the grinding belt 12 is completed.

  Next, a method of removing the grinding belt 12 from the grinding device 10 using the grinding belt exchange device 1 will be described. First, as shown in FIG. 4, the grinding belt exchanging device 1 is arranged so that the bottomed cylindrical bodies 31 a and 32 a correspond to the pulley 11 with the rotating members 31 and 32 in a non-contact state (preparation step). ).

  Then, as shown by a broken line in FIG. 3, the swinging pin 4 is left unfolded so as not to hinder the movement of the tension adjusting pulley 11, and the tension adjusting pulley 11 is moved backward (moved to the right side of the drawing). The rotating members 31 and 32 are rotated in the direction opposite to the arrow in FIG. 4 to switch the rotating members 31 and 32 to the contact state. The rotating members 31 and 32 are switched to the contact state while the tension adjusting pulley 11 is retracted to weaken the tension, so that the rotating members 31 and 32 are smoothly inserted between the grinding belt 12 and the pulley 11. The

  Next, as shown in FIG. 3, the swing pin 4 is narrowed so that the tension adjusting pulley 11 and the grinding belt 12 are not in contact with each other. In this way, the rotating members 31 and 32 support the grinding belt (“removal support process”).

  Then, the grinding belt exchange device 1 is separated from the grinding device 10 (“separation process”), and the removal of the grinding belt 12 is completed.

  At this time, if a new grinding belt 12 is wound around the other grinding belt exchange device 1 provided on the back surface 2b, the grinding belt is rotated by a rotating device (not shown) provided at the upper end of the grinding belt exchange device 1. The exchanging device 1 can be rotated 180 ° and a new grinding belt 12 can be immediately mounted.

  According to the grinding belt exchanging device 1 and the grinding belt exchanging method of this embodiment, the exchanging operation of the grinding belt can be easily performed, and the stop time of the grinding device can be made relatively short. In addition, the grinding belt exchanging device 1 according to the present embodiment can rotate the plurality of rotating members 31 and 32 with one rotating actuator 38. Thereby, compared with the case where the actuator for rotation is attached to each rotation member 31 and 32, weight reduction and cost reduction can be achieved.

DESCRIPTION OF SYMBOLS 1 ... Grinding belt changer, 1 '... Grinding belt changer, 2 ... Frame, 2a ... Surface,
2b ... back surface, 21, 22 ... connection plate, 31 ... rotating member (large diameter), 31a ... bottomed cylindrical body (large diameter), 32 ... rotating member (small diameter), 32a ... bottomed cylindrical body ( (Small diameter), 33 ... rotating shaft, 35, 36 ... driven body (sprocket), 37 ... driving belt (roller chain), 38 ... rotating actuator, 4 ... swing pin, 4a ... swing pin actuator, 4b ... Wings, 5 ... auxiliary pin, 51 ... arm, 51a ... arc-shaped notch, 52 ... biasing means, 53 ... locking rod, 10 ... grinding device, 11 ... pulley, 11 '... tension adjusting pulley, 12 ... Grinding belt.

Claims (3)

A grinding belt replacement device for replacing the grinding belt grinding device and a grinding belt which is wound around a plurality of pulleys to said plurality of pulleys,
The grinding belt exchange device includes a rotating member that is rotatable along a peripheral surface of the pulley,
In a state where the grinding belt is wound around the pulley, a position where the pulley and the grinding belt are in contact is a contact position, and a position where the pulley and the grinding belt are not in contact is a non-contact position.
Wherein the rotating member is thereby positioned in the contact position, said rotating member is inserted between the grinding belt and the pulley, the grinding belt is wound around the rotating member disengaged from the pulley A contact state where the grinding belt and the rotating member are in contact with each other;
The rotary member in that is positioned in the non-contacting position, said grinding belt is wound around the pulley, the rotating member and the grinding belt can be freely switched to a non-contact state in which a non-contact A grinding belt changer characterized by Using a grinding belt exchange device provided with a rotating member that is rotatable along the peripheral surfaces of a plurality of pulleys around which a grinding belt of a grinding device is wound,
In a state where the grinding belt is wound around the pulley, a position where the pulley and the grinding belt are in contact is a contact position, and a position where the pulley and the grinding belt are not in contact is a non-contact position.
The rotary member in that is positioned in the non-contacting position such that said grinding belt and the rotary member is in a non-contact state in which a non-contact, remove ready to place the rotating member relative to the pulley Process,
Wherein the rotating member is thereby positioned in the contact position, said rotating member is inserted between the grinding belt and the pulley, the grinding belt is wound around the rotating member disengaged from the pulley A removal supporting step in which the grinding belt and the rotating member are brought into contact with each other, and the rotating member supports the grinding belt;
Separating the rotating member from the pulley and removing the grinding belt from the pulley; and
A method for removing a grinding belt, comprising: Using a grinding belt exchange device provided with a rotating member that is rotatable along each circumferential surface of a plurality of pulleys around which a grinding belt of a grinding device is wound,
In a state where the grinding belt is wound around the pulley, a position where the pulley and the grinding belt are in contact is a contact position, and a position where the pulley and the grinding belt are not in contact is a non-contact position.
Wherein the rotating member is thereby positioned in the contact position, said rotating member is inserted between the grinding belt and the pulley, the grinding belt is wound around the rotating member disengaged from the pulley An attachment preparation step of winding the grinding belt around the rotating member and placing the rotating member relative to the pulley in a contact state where the grinding belt and the rotating member are in contact with each other;
The rotary member in that is positioned in the non-contact position, wherein the grinding belt is wound around the pulley, the grinding belt and the said as the rotating member is in a non-contact state in which a non-contact rotating member moving the the mounting support step in which the pulley supporting the grinding belt,
A separation step of separating the rotating member from the pulley;
A grinding belt mounting method characterized by comprising:

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