JP2011121028A - Crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To flatly stow crushed pieces without heaping up them. <P>SOLUTION: A detection sensor 27 for detecting the glass plate G sent in by a sending-in conveyor 7 is arranged on the side of a suction port 15. A recovery box 25 is constituted in a reciprocally movable manner and a controller 35 is connected to the drive motor 33 of the recovery box 25. The drive motor 33 is started on the basis of the detection signal of the detection sensor 27 to reciprocate the recovery box 25 so as to perform the start and completion of the falling of the crushed pieces (g) at the end of the recovery box 25. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an improvement of a crushing apparatus for crushing a flat plate-like object, and particularly relates to measures for loading crush pieces.

  Patent Document 1 discloses a crushing device that crushes a non-standard glass substrate generated in the manufacturing process of a liquid crystal display panel in order to reuse it. The crushing device includes a pair of upper and lower drawing rollers that pull in while sandwiching the glass substrate by rotating in opposite directions, and a crushing roller that is adjacent to the side of the upper and lower drawing rollers. The crushing operation chamber is provided, and the glass substrate drawn by the upper and lower drawing rollers is crushed by the rotation operation of the crushing roller, and the crushed pieces (cullet) are collected in a collection box. ing. The collection box in which the crushed pieces are loaded is transported to the next work process after the opening is closed with a lid.

JP 2007-216131 A (paragraph 0032 column to paragraph 0034 column, paragraph 0038 column, paragraph 0042 column, FIG. 6)

  However, in general, the crushed pieces fall into a stopped collection box waiting below the crushing rollers and are loaded by a predetermined amount, so that the center is the opening of the collection box 25 as shown in FIG. In this state, the upper portion of the collection box 25 cannot be closed with the lid. Therefore, an extra work of breaking the raised center of the crushed pieces g loaded and flattening the whole so as to form a lid is required, and work efficiency is reduced. As soon as possible so that the center of the crushed piece g that has been loaded does not reach the opening of the collection box 25 so that a lid can be formed, the loaded amount per piece of the crushed piece g is less than the specified amount. The number of operations increases and work efficiency decreases.

  The present invention has been made in view of such a point, and an object thereof is to load the crushed pieces almost flatly without being piled up.

  In order to achieve the above object, the present invention is characterized in that the recovery box can be moved back and forth, and the fall timing of the shredded pieces and the movement timing of the recovery box are set appropriately.

  Specifically, the present invention is provided on the side of the inlet port in the crushing chamber, a crushing chamber having an inlet in the upper portion of the side wall, a carry-in conveyor for carrying a flat plate-shaped object to be crushed toward the inlet. , A pulling roller for drawing the object to be crushed by the carry-in conveyor into the crushing work chamber, and a side of the drawing roller in the crushing work chamber adjacent to the drawing roller, and the crushing object drawn by the drawing roller is rotated. A crushing roller for crushing, a recovery chute disposed below the crushing roller, and a recovery box disposed below the recovery chute, the object to be crushed drawn into the crushing chamber by the pulling roller The crushing roller is crushed by the rotation of the crushing roller, and crushed pieces that have been crushed into small pieces are dropped into the collection box via the collection chute and collected. The breaking device intended that were taken to solve the following means.

  That is, according to the first aspect of the present invention, detection means for detecting an object to be crushed carried by a carry-in conveyor is disposed on the drawing-in port side, and the collection box is configured to be reciprocally movable by activation of a drive source, The drive source is connected to a control means to which a detection signal of the detection means is input. The control means activates the drive source based on the detection signal of the detection means, and starts and ends the fall of the fragment. The collection box is configured to reciprocate so as to be performed at the end of the collection box.

  According to a second invention, in the first invention, the control means controls the movement speed of the recovery box slower when the fragment dropping position is at both ends of the recovery box than when it is in the middle except for both ends. It is comprised so that it may do.

  According to a third invention, in the first or second invention, the recovery chute has a narrowed chute opening at a lower end, and the cover has an opening of the recovery box at the chute opening. It is provided from the inlet side to the counter inlet side so as to cover the entire moving region.

  According to the first aspect of the present invention, the object to be crushed carried toward the inlet by the carry-in conveyor is detected by the detection means, and this detection signal is input to the control means to activate the recovery box drive source, and the crushing roller The recovery box reciprocates so that the fall start and end of the shatter of the object to be crushed by the rotation operation are performed at the end of the recovery box.

  Therefore, the crushed pieces can be loaded in the collection box in a substantially flat amount without being piled up, and can be carried out to the next work process after being covered with a lid, thereby improving work efficiency.

  According to the second invention, when the falling position of the shredded pieces is at both ends of the collection box, the moving speed of the collecting box is slower than when the shredded pieces are in the middle except for both ends. This can be done more reliably.

  That is, when the recovery box is reciprocated once at a constant speed, as shown in FIG. 3, the shredded piece is dropped once at both ends of the recovery box, but twice in the middle except for both ends. FIG. 3 illustrates four round trips. For this reason, as shown in FIG. 4 (b), the loading amount of the crushed pieces g at both ends of the recovery box 25 is slightly smaller than the middle, and the crushed pieces g are gentle compared to the conventional example of FIG. 4 (c). However, this situation can be solved by changing the moving speed of the collection box 25 as described above. As shown in FIG. The recovery box 25 can be loaded more flatly.

  According to the third aspect of the present invention, since the opening is covered with the cover while the collection box reciprocates, the crushed pieces g do not fall out of the collection box 25.

It is a schematic block diagram of the crushing apparatus which concerns on embodiment. (A) shows the state in which the collection box has moved to the inlet, and (b) shows the state in which the collection box has moved to the counter inlet. It is explanatory drawing of the fall locus | trajectory of a crushing piece when a collection box is reciprocated so that a crushing piece may fall over the other end side from the one end side of a collection box. (A) shows the loading state of the crushed pieces in the collection box when the moving speed of the collection box is changed, and (b) shows the crushed pieces in the collection box when the collection box is reciprocated at a constant speed. (C) is a conventional example, and shows the loaded state of the crushed pieces in the collection box when the collection box is not moved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1: shows the schematic block diagram of the crushing apparatus 1 which concerns on embodiment. In this Embodiment 1, the glass substrate G which comprises various display panels, such as a liquid crystal display panel, is illustrated as a to-be-crushed object which is a crushing object. This glass substrate G is a non-standard product generated in the manufacturing process of the display panel, and is crushed for disposal or reuse. However, the present invention is not limited to this, and dismantling display devices discarded in the market. A glass substrate G generated by the processing is also included. In addition to the glass substrate G, any material that can be crushed with a flat plate other than metal may be used, and plastic materials and building materials (such as gypsum board and particle board) are also included as objects to be crushed. The same applies to Embodiments 2 to 7 described later.

  On the side of the crushing device 1, a carry-in conveyor 7 composed of a belt conveyor in which an endless belt 5 is wound around a pair of front and rear rolls 3 is juxtaposed so as to extend horizontally, and at the upstream end of the carry-in conveyor 7, A transfer conveyor 11 composed of a roller conveyor formed by arranging a plurality of rollers 9 in parallel is arranged in parallel so as to be horizontally continuous.

  The crushing apparatus 1 includes a crushing work chamber 13 whose inside is cut off from the outside, and an inlet 15 for drawing a glass substrate is formed on one side (right side in FIG. 1) of the crushing work chamber 13 on the side wall 13a. The downstream end of the carry-in conveyor 7 faces the draw-in port 15, and the glass substrate G is transferred to the carry-in conveyor 7 by the transfer conveyor 11, and then toward the draw-in port 15 in the crushing work chamber 13 by the carry-in conveyor 7. It comes to carry in.

  A pair of upper and lower drawing rollers 17 and 19 are rotatably disposed on the drawing port 15 side of the upper space S in the crushing working chamber 13, and the lower side of these upper and lower drawing rollers 17 and 19. The upper drawing roller 19 is positioned at the same height as the upper surface of the endless belt 5 of the carry-in conveyor 7. The upper drawing roller 17 is positioned above the lower drawing roller 19 with the lower drawing roller 19. They are arranged with an interval between them so that they can be pulled in across G. Then, the upper drawing roller 17 is rotated in the clockwise direction in FIG. 1 and the lower drawing roller 19 is rotated in the counterclockwise direction in FIG. The glass substrate G is pulled into the crushing work chamber 13 while being sandwiched.

  A crushing blade 21a extending in the direction of the rotation axis is provided around the outer peripheral surface on the side of the upper and lower drawing rollers 17 and 19 at the back (left side in FIG. 1) when viewed from the drawing port 15 in the crushing working chamber 13. A plurality of crushing rollers 21 that are spaced apart from each other in the direction are rotatably arranged, a recovery chute 23 is disposed below the crushing roller 21, and a recovery box 25 is disposed below the recovery chute 23. . Then, the glass substrate G drawn into the crushing work chamber 13 by the upper and lower drawing rollers 17 and 19 is crushed by applying an impact with the crushing blade 21a by the clockwise rotation of the crushing roller 21 in FIG. The crushed pieces (cullet) g that has been crushed into small pieces are dropped into the collection box 25 through the collection chute 23 and collected. The crushing roller 21 has been described as an impact type crusher. However, a uniaxial crusher or a biaxial crusher having a plurality of crushing blades on the outer peripheral surface may be used.

  As one of the features of the present invention, a reflection type detection sensor 27 as a detecting means is disposed downward on the side of the side wall 13a in the crushing work chamber 13 so as to face the inlet 15 by the carry-in conveyor 7. The glass substrate G carried in is detected.

  Another feature of the present invention is that the collection box 25 can reciprocate in the crushing work chamber 13 between the inlet 15 side and the counter inlet 15 side. That is, the collection box 25 is mounted on a carriage 31 that moves on the rail 29, and a drive motor 33 as a drive source is installed on the carriage 31, and the carriage 31 (the collection box 25 is activated by the activation of the drive motor 33. ) Moves on the rail 29.

  As a further feature of the present invention, a controller 35 comprising a CPU or the like as control means is connected to the drive motor 33, and a detection signal of the detection sensor 27 is input to the controller 35. Then, the controller 35 activates the drive motor 33 based on the detection signal of the detection sensor 27, and the cart 31 (recovery is performed so that the fall start and fall end of the shredded piece g are performed at the end of the recovery box 25. The box 25) is configured to reciprocate. Further, when the dropping position of the shredded piece g is at both ends of the collection box 25 (see FIGS. 2A and 2B), the controller 35 is in the middle excluding the both ends (see FIG. 1). ), The moving speed of the carriage 31 (collection box 25) is controlled to be slower.

  Since the adjacent glass substrates G on the transfer conveyor 11 and the carry-in conveyor 7 are spaced apart from each other, they contribute to crushing until one glass substrate G is crushed and the next glass substrate G is crushed. There is no non-crushing time, and the controller 35 stops the carriage 31 (collection box 25) while the fall position of the crushing piece g is at the end of the collection box 25 during this period. The controller 35 is provided with a delay circuit in consideration of a time lag from when the detection sensor 27 detects the glass substrate G to when the crushed piece g crushed by the crushing roller 21 falls. The fall timing of the crushed pieces g and the movement timing of the carriage 31 (collection box 25) are matched.

  The collection chute 23 has a narrow chute 23a at the lower end, and the cover 37 covers the opening of the collection box 25 over the entire movement area of the chute 23a. Are provided from the inlet 15 side to the opposite inlet 15 side.

  In the crushing apparatus 1 configured as described above, after the plurality of glass substrates G are transferred to the carry-in conveyor 7 by the transfer conveyor 11, the glass substrate G is carried toward the inlet 15 of the crushing work chamber 13 by the carry-in conveyor 7, This is detected by the detection sensor 27. This detection signal is input to the controller 35. Based on this detection signal, a motor start signal is output from the controller 35 to the drive motor 33, and the drive motor 33 is started so as to synchronize with the fall of the crushed pieces g. The collection box 25) reciprocates on the rail 29. The glass substrate G is sequentially pulled into the crushing work chamber 13 one by one by the upper and lower drawing rollers 17 and 19 and is crushed by the crushing blade 21 a by the rotation operation of the crushing roller 21. The crushed pieces g that have been crushed into pieces are dropped into the collection box 25 from the chute port 23a of the collection chute 23 and collected. During this time, the fall start of the shredded pieces g and the end of the fall are performed at both ends of the collection box 25. In addition, the moving speed of the collection box 25 is made slower when the falling position of the fragment g is at both ends of the collection box 25 than when it is in the middle except for both ends.

  Therefore, as shown in FIG. 4A, the crushed pieces g can be accurately loaded flatly into the collection box 25 in a specified amount without being piled up, covered and transported to the next work process. Efficiency can be improved reliably.

  Further, since the opening is covered with the cover 37 while the collection box 25 reciprocates, the crushed pieces g can be prevented from falling out of the collection box 25.

  The present invention is useful for, for example, a crushing apparatus that crushes a flat-shaped crushing object such as a non-standard glass substrate generated in a manufacturing process of a liquid crystal display panel for disposal or reuse.

DESCRIPTION OF SYMBOLS 1 Crushing device 7 Carry-in conveyor 13 Crushing working chamber 13a Side wall 15 Retraction port 17 Upper drawing roller 19 Lower drawing roller 21 Crushing roller 23 Collection chute 23a Chute port 25 Collection box 27 Reflective sensor (detection means)
33 Drive motor (drive source)
35 Controller (control means)
37 Lid G Glass substrate (object to be crushed)
g Fragment

Claims (3)

A crushing work chamber having an inlet at the top of the side wall;
A carry-in conveyor for carrying in the flat-shaped object to be crushed toward the inlet,
A pull-in roller that is provided on the inlet side in the crushing work chamber and draws the object to be crushed by the carry-in conveyor into the crushing work chamber;
A crushing roller that is adjacent to the side of the drawing roller in the crushing work chamber and crushes the object to be crushed drawn by the drawing roller by a rotating operation,
A collection chute disposed below the crushing roller;
A recovery box disposed below the recovery chute,
The object to be crushed drawn into the crushing work chamber by the pulling roller is crushed by the rotating operation of the crushing roller, and the crushed pieces broken into small pieces are dropped into the collection box through the collection chute and collected. A crusher configured in
Detection means for detecting the object to be crushed carried by the carry-in conveyor is disposed on the inlet side,
The collection box is configured to be able to reciprocate when the drive source is activated,
The drive source is connected to a control means to which a detection signal of the detection means is input,
The control means is configured to activate the drive source based on a detection signal of the detection means, and to reciprocate the recovery box so that the falling start and end of the shredded pieces are performed at the end of the recovery box. The crushing apparatus characterized by being made. The crushing device according to claim 1,
The control means is configured to control the movement speed of the recovery box slower when the crushing piece falls at both ends of the recovery box than when it is in the middle except for both ends. Crushing equipment. In the crushing device according to claim 1 or 2,
The collecting chute has a narrowed chute opening at the lower end, and the chute opening is retracted from the drawing inlet side so that the cover covers the opening of the collecting box over the entire moving region. A crushing device provided over the mouth side.

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