JP2010125420A - Crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crusher whose manufacturing cost can be reduced and cleaning can easily be carried out. <P>SOLUTION: A pair of roughly oval interlocking plates 23, 23 are disposed between a fixed side-wall 2 and each of a pair of swingable side-walls 3, 3, underneath a rotary shaft 60. The interlocking plates 23 includes a pair of holes separated from each other by a suitable distance. A pin 21 is inserted into one of the pair of holes as a first fulcrum shaft. A through shaft 22 is inserted into the other of the pair of holes as a second fulcrum shaft. The pins 21 are each individually disposed on either side of the pair of swingable side-walls 3, 3 each respectively facing either side of a pair of the fixed side-walls 2. Namely, the four pins 21 are individually disposed corresponding to each of the four interlocking plates 23. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pulverizer capable of pulverizing an object to be processed.

  In order to solve problems such as environmental pollution and an increase in industrial waste, the formation of a recycling society has become increasingly important. For example, in a molding plant that manufactures molded products or molded parts using synthetic resins typified by plastics, unnecessary parts called sprue runners or molding defects that occur during molding are collected to reuse the resources of resin materials. It is done to improve the rate.

  For recycling the resin material, the collected sprue runner is made into a pulverized piece of a predetermined size by a pulverizer and used as a recycling resource. In order to make it easier for the sprue runner introduced from the feeding hopper to bite into the crushing blade, such a crusher is first crushed with a crushing blade, and the crushed material is crushed into crushed pieces of a predetermined particle shape with the crushing blade. is doing. A single-shaft crusher with a crushing blade and a crushing blade fixed to one rotating shaft has few drive parts that drive the rotating shaft and has a simple structure, so it can be used in many offices aiming for recycling in the factory. Has been.

On the other hand, when changing the material to be crushed, it is necessary to clean the crushed pieces remaining in the pulverizer every time the material is changed so that different materials are not mixed. The crushed pieces can be found in various locations, such as the gaps between the pulverizing blades with complicated shapes, the surroundings of the crushed blades, and the inside of the crushed blade cover that prevents the material crushed by the crushed blades from being discharged. Therefore, in order to clean the inside of the pulverizer, it is necessary to remove the coarse pulverization blade and the pulverization blade and perform disassembly and cleaning, which requires time for the cleaning operation and is difficult to clean. Therefore, in order to shorten the cleaning time and facilitate the cleaning operation, a pulverizer having a double-open structure on a pair of surfaces of the casing main body covering the coarse pulverization blade and the pulverization blade has been commercialized (see Patent Document 1). ).
JP 2006-55797 A

  However, in the conventional pulverizer disclosed in Patent Document 1, when the swing side wall (opening / closing door) is opened, depending on the stop position of the crushing blade having a large rotation diameter of the cutting edge, the cutting edge of the crushing blade and the crushing blade Since it interferes with the cover, it is necessary to open the swing side wall while turning the crushing blade by hand, and workability is not good. Even when the swinging side wall is open, the crushing blade edge and the crushing blade cover interfere with each other, so that the crushing blade and the crushing blade cannot be rotated 360 degrees for cleaning, On the lower side, since the crushing blade and the gap between the crushing blade and the crushing blade cover were small, there were places where cleaning was difficult.

  In addition to the two tie rod shafts, two fulcrum shafts for swinging the swing side wall are provided between the two fixed side walls (front wall and rear wall), which increases the manufacturing cost. Therefore, there has been a demand for a pulverizer that can reduce the manufacturing cost and can be easily cleaned.

  This invention is made | formed in view of such a situation, and it aims at providing the grinder which can perform cleaning easily while reducing manufacturing cost.

  According to a first aspect of the present invention, there is provided a crusher according to a first aspect of the present invention, comprising: a fixed side wall provided on both ends of a rotary shaft disposed sideways; A swing side wall that can swing open and close around an axis on the side, and pulverize the workpiece by cooperation of a rotary blade provided on the rotary shaft and a fixed blade provided inside the swing side wall And a supporting member disposed between the swinging side wall and the fixed side wall at a lower side of the rotary shaft and having two holes provided at an appropriate distance from each other. A first fulcrum shaft that is individually provided on both side surfaces of the moving side wall facing the fixed side wall and is inserted into one hole of the support member; and the other hole of the support member that is provided on the fixed side wall. A second fulcrum shaft inserted into the first fulcrum shaft in a state in which the swing side wall is closed. Than fulcrum shaft Yes disposed inside said support member, characterized in that the first pivot axis and through the second pivot shaft are so interlocked with the swinging of the swinging side walls.

  The pulverizer according to a second aspect of the present invention is the pulverizer according to the first aspect, wherein the first fulcrum shaft is a pin, and the swinging side wall is provided with an insertion hole for inserting one end of the pin. The end side abuts on the fixed side wall.

  The pulverizer according to a third invention is characterized in that, in the first invention or the second invention, the second fulcrum shaft is individually provided for each of the fixed side walls.

  The pulverizer according to a fourth invention is the pulverizer according to the third invention, wherein the second fulcrum shaft is a bolt, the fixed side wall is provided with an insertion hole for inserting the bolt, and the insertion hole and the support member A nut is screwed into the bolt inserted into the other hole.

  In the first aspect of the invention, the supporting member has two holes spaced apart by an appropriate length, and is disposed below the rotating shaft and between the swinging side wall and the fixed side wall. The first fulcrum shaft provided individually on both side surfaces of the side wall facing the fixed side wall and inserted into one hole of the support member, and provided on the fixed side wall and inserted into the other hole of the support member The first fulcrum shaft is disposed inside the second fulcrum shaft with the second fulcrum shaft closed and the swinging side wall closed. The support member is interlocked with the swing of the swing side wall via the first fulcrum shaft and the second fulcrum shaft. When the swing side wall is opened from the closed state, the swing side wall rotates around the axis of the first fulcrum shaft of the support member disposed below the rotation shaft. Since the first fulcrum shaft is arranged below the rotation shaft, the portion of the swinging side wall that is close to the rotary blade moves in an arc shape around the first fulcrum shaft as the swinging side wall rotates. It is possible to move away from the rotary blade and open the swing side wall without interfering with the rotary blade. The supporting member starts to rotate around the second fulcrum axis while opening the swing side wall, and the first fulcrum axis rotates around the second fulcrum axis. As a result, the swing side wall rotates around the second fulcrum shaft via the first fulcrum shaft and the second fulcrum shaft of the support member. The swinging side wall is rotated further around the second fulcrum shaft arranged outside the first fulcrum shaft, so that the swinging side wall is opened further away from the rotary blade, and the opening of the swinging side wall is widened. Can do. In addition, since the first fulcrum shaft is individually provided on both side surfaces of the swinging side wall facing the fixed side wall, the manufacturing cost is reduced as compared with the case where the fulcrum shaft is bridged between the two fixed side walls. be able to.

  In the second invention, the first fulcrum shaft is a pin, the swing side wall is provided with an insertion hole for inserting one end side of the pin, and the other end side of the pin is in contact with the fixed side wall. It is. The support member disposed between the swing side wall and the fixed side wall swings the swing side wall around the pin by inserting one end side of the pin mounted in one hole into the insertion hole of the swing side wall. Can be made. Moreover, since the other end side of the pin is in contact with the fixed side wall, the pin does not come off. As a result, the swing side wall can be swung with a simple structure, and the manufacturing cost can be reduced.

  In the third invention, the second fulcrum shaft is individually provided for each fixed side wall. That is, a separate second fulcrum shaft is provided on each of the two fixed side walls. Thereby, a manufacturing cost can be reduced compared with the case where a through shaft in which the fulcrum shaft is spanned between two fixed side walls is used.

  In the fourth invention, the second fulcrum shaft is a bolt, the fixed side wall is provided with an insertion hole for inserting the bolt, and the nut is inserted into the insertion hole and the bolt inserted into the other hole of the support member. Screwed. A bolt attached to another hole of the support member disposed between the swing side wall and the fixed side wall is inserted into the insertion hole of the fixed side wall, and a nut is screwed. Thus, the support member can be swung around the second fulcrum shaft of the fixed side wall with a simple structure, and the manufacturing cost can be reduced.

  According to the first aspect of the present invention, the swinging side wall rotates around the second fulcrum shaft arranged outside the first fulcrum shaft, so that the swinging side wall is further spaced apart from the rotary blade and opened. The opening can be widened. In addition, since the first fulcrum shaft is individually provided on both side surfaces of the swinging side wall facing the fixed side wall, the manufacturing cost is reduced as compared with the case where the fulcrum shaft is bridged between the two fixed side walls. be able to.

  According to the second invention, by using the pin as the first fulcrum shaft, the swing side wall can be swung with a simple structure, and the manufacturing cost can be reduced.

  According to the third aspect of the invention, since the separate second fulcrum shaft is provided on each of the two fixed side walls, compared to a case where a through shaft in which the fulcrum shaft is spanned between the two fixed side walls is used. The manufacturing cost can be reduced.

  According to the fourth invention, by using the bolt as the second fulcrum shaft, the support member can be swung around the second fulcrum shaft of the fixed side wall with a simple structure, and the manufacturing cost can be reduced. .

Embodiment 1
Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is a schematic diagram of a main part viewed from the upper surface of a pulverizer according to the present invention. In the figure, reference numeral 1 denotes a metal support having an opening at the center. A pair of metal fixed side walls 2, 2 spaced apart from each other by a suitable length are provided on the upper surface of the support base 1, and a pair of metal swing side walls are provided on both sides of the fixed side walls 2, 2. The fixed side walls 2 and 2 and the swinging side walls 3 and 3 constitute a casing. Each fixed side wall 2 is fixed to the support base 1 with a bolt.

  A bearing 10 is attached to a substantially central portion of one fixed side wall 2, and an electric motor 11 having a speed reducer is attached to the other fixed side wall 2, and interlocks with a motor shaft of the electric motor 11. A rotating shaft (not shown) is pivoted between the fixed side walls 2 and 2.

  The space surrounded by the fixed side walls 2 and 2 and the swinging side walls 3 and 3 accommodates the crushing blades 4 and 4 and the crushing blades 6, 6 and 6 fitted to a rotation shaft (not shown). The crushing blades 4 and 4 are in the form of an arm whose tip (blade edge) is curved in the rotation direction, and are arranged at an appropriate distance in the axial direction of the rotation shaft. The crushing blades 6, 6, 6 are arranged between the fixed side wall 2 and the crushing blade 4 and between the crushing blades 4, 4, and annular grooves are formed at predetermined intervals in the rotation axis direction and adjacent to each other. The outer peripheral surface of the annular protrusion between the annular grooves is formed in a sawtooth shape.

  As will be described later, the swinging side walls 3 and 3 can swing around fulcrum shafts (first fulcrum shaft and second fulcrum shaft) parallel to the rotation axis. The casing is opened upward. Inside the one oscillating side wall 3, a rectangular plate-shaped first fixed blade 7a for pulverizing an object to be processed (a sprue runner) in cooperation with each crushing blade 4 and each crushing blade 6. And the fixed blade 7 comprised by the 2nd fixed blade 7b is being fixed so that it may incline downward toward the inner side.

  The first fixed blade 7 a has a longitudinal dimension substantially the same as the axial dimension of the grinding blade 6, and one edge on the long side is formed in an uneven shape so as to mesh with the cutting edge of the grinding blade 6. And are fixed to the inside of the swing side wall 3 by bolts 9. In addition, a tooth portion for pulverizing the object to be processed is formed on the edge portion on the short side of the first fixed blade 7 a and close to the crushing blade 4 in cooperation with the crushing blade 4.

  The second fixed blade 7b has a longitudinal dimension that is substantially the same as the axial dimension of the oscillating side wall 3, and is one edge of the long side, in the vicinity of the coarse crushing blade 4, The tooth part which grind | pulverizes a to-be-processed object by cooperation with the rough crushing blade 4 is formed. The second fixed blade 7b is fixed to the inside of the swing side wall 3 so as to contact the other edge of the long side of the first fixed blade 7a,... With a bolt (not shown).

  In order to prevent discharge of a workpiece that is roughly crushed by the crushing blades 4 and 4 and is not crushed to a predetermined size, inside the swing side wall 3 and below the fixed blade 7. A crushing blade cover to be described later is provided. The crushing blade cover has an arc-shaped groove formed inside so as to cover the rotation trajectory of the crushing blades 4 and 4.

  Inside the other oscillating side wall 3, the crushed pieces crushed to a predetermined size (grain shape) by the pulverizing blades 6, 6, 6 are scraped off and discharged to a discharge port (not shown) on the lower side of the casing. A substantially rectangular plate-shaped scraper 5 is fixed by bolts 8, 8 and 8 so as to be inclined downward toward the inside.

  The scraper 5 is formed with a rectangular cut in a portion where the coarse crushing blades 4 and 4 rotate, and is located at one edge on the long side and close to the crushing blades 6, 6 and 6. A scraping portion formed in a concavo-convex shape so as to mesh with the cutting edge of the crushing blade 6 is formed.

  In order to prevent discharge of an object to be processed that has been roughly crushed by the crushing blades 4 and 4 and not yet crushed to a predetermined size, inside the swing side wall 3 and below the scraper 5. A crushing blade cover is provided. The crushing blade cover has an arc-shaped groove formed inside so as to cover the rotation trajectory of the crushing blades 4 and 4. When both oscillating side walls 3 and 3 are closed, the respective crushing blade covers abut against each other at one end portion to form a space that covers the rotation trajectory of the crushing blades 4 and 4, and the uncrushed object to be processed Prevents things from being discharged.

  At the four corners of the casing composed of each fixed side wall 2 and each swing side wall 3, lock members 13 having a tapered surface are attached to fix the swing side walls 3, 3 to the fixed side walls 2, 2. The end portions of the fixed side wall 2 and the swing side wall 3 are sandwiched by one tapered surface, and the lever 12 screwed into the lock member 13 is tightened to fix the swing side walls 3 and 3 to the fixed side wall 2. 2 is fixed. Each swing side wall 3 can be opened and closed with a handle 14 fixed to the swing side wall 3.

  When pulverizing the workpiece, the swinging side walls 3 and 3 are fixed to the fixed side walls 2 and 2 by tightening the lever 12. When an object to be processed is put into a feeding hopper (not shown) arranged at the upper part of the casing and the electric motor 11 is turned on, the rotating shaft rotates at a predetermined number of revolutions, and the coarse crushing blade 4 and the crushing blade 6. Rotates. The rotation direction is a direction in which the coarse crushing blade 4 and the crushing blade 6 are engaged with the fixed blade 7 from the upper side to the lower side and are engaged with the scraper 5 from the lower side to the upper side.

  Thus, the object to be processed is first crushed by the cooperation of the crushing blade 4 and the fixed blade 7 and chopped into a size that can easily bite into the crushing blade 6. The roughly crushed workpiece is pulverized into a pulverized piece of a predetermined size by the cooperation of the pulverizing blade 6 and the first fixed blade 7a, and sent to the lower side of the casing as the pulverizing blade 6 rotates. It is discharged from a discharge port (not shown). Further, among the crushed pieces crushed to a predetermined size, those adhering to the side surface of the pulverizing blade 6 due to static electricity are scraped off on the lower surface of the scraper 5 by the cooperation of the pulverizing blade 6 and the scraper 5, and the discharge port It is discharged from (not shown).

  A part of the object to be processed roughly crushed by the crushing blade 4 is sent to the lower side of the fixed blade 7 by the rotation of the crushing blade 4. And is prevented from being accidentally discharged from the discharge port.

  In addition, after pulverizing the workpiece, a part of the crushed pieces is around each crushing blade 4, each crushing blade 6, fixed blade 7 or the like, around the scraper 5, around the scraper 5, inside the crushing blade cover, and fixed. It remains inside the side walls 2 and 2 and inside the swing side walls 3 and 3.

  FIG. 2 is a schematic diagram of a main part viewed from the side of the pulverizer according to the present invention. FIG. 2 shows a state in which the swing side walls 3 and 3 are closed. Further, only the main part is shown in the figure. As shown in the figure, a rotary shaft 60 is mounted substantially at the center of the fixed side wall 2, and the coarse crushing blade 4 and the crushing blade 6 are fitted on the rotary shaft 60 at predetermined positions. The fixed side wall 2 is fixed to the support base with bolts. A plurality of crushing blades 4 and crushing blades 6 are fitted, but only one is shown in the figure. Fixed blades 7 (first fixed blade 7a and second fixed blade 7b) are fixed on the inner upper surface of one swinging side wall 3 in a downward direction toward the rotation shaft 60. The rough crushing blade cover 31 is provided on the rotation track of the rough crushing blade 4 below 7.

  A scraper 5 is fixed on the inner upper surface of the other oscillating side wall 3 so as to incline downward toward the rotating shaft 60. The scraper 5 is positioned below the scraper 5 on the rotational trajectory of the crushing blade 4. Is provided with a crushing blade cover 31.

  Each crushing blade cover 31 has a subarc-shaped annular shape having a predetermined thickness, and an inner side forms a space that is grooved along the rotation path of the crushing blade 4. In a state where the swinging side walls 3 and 3 are closed, one end portions of the crushing blade cover 31 come into contact with each other, and the unprocessed wrap around the fixed blade 7 and the scraper 5 as the crushing blade 4 rotates. Receive the crushed pieces.

  On the lower side of the rotation shaft 60, substantially elliptical interlocking plates 23 and 23 are disposed between the fixed side wall 2 and the two oscillating side walls 3 and 3 as support members. The interlocking plate 23 as a support member indirectly supports the swing side wall 3 via the through shaft 22 and the pin 21 with respect to the fixed side wall 2. Although not shown in FIG. 2, interlocking plates 23 and 23 are also arranged between the other fixed side wall 2 and the two swinging side walls 3 and 3. Therefore, four interlocking plates 23 are used. Further, the position of the interlocking plate 23 is not limited to the example of FIG.

  The interlocking plate 23 is provided with two holes that are separated by an appropriate length. A pin 21 as a first fulcrum shaft is inserted into one hole, and a second fulcrum shaft is inserted into the other hole. A through shaft 22 is provided. As shown in FIG. 2, the pin 21 is disposed substantially vertically below the rotating shaft 60, and the through shaft 22 is located outside the pin 21 of the same connecting plate 23 and has substantially the same height as the pin 21. Placed in position. That is, the pin 21 is disposed inside the through shaft 22 with the swinging side wall 3 closed. The positional relationship between the pin 21 and the through shaft 22 is not limited to the example of FIG. Further, the shape of the interlocking plate 23 is not limited to a plate shape, and includes a rod-like shape as long as holes are formed on both ends. Further, the shape between the two holes may be a straight shape, or a curved or bent shape.

  The first fulcrum shaft can be composed of bolts, screws, rivets, etc. in addition to the pins. They are individually provided on both side surfaces facing the two fixed side walls 2 arranged on both sides of the swing side wall 3. That is, four pins 21 are individually provided corresponding to the four interlocking plates 23. Thereby, the manufacturing cost can be reduced as compared with the case where the fulcrum shaft is bridged between the fixed side walls 2 and 2 facing the rotating shaft 60 in parallel along the swing side wall 3.

  The through-shaft 22 is bridged between the fixed side walls 2 and 2 facing the rotating shaft 60 in parallel along the swing side wall 3. The details of the pin 21 and the through shaft 22 will be described later.

  A notch surface 32 that is inclined downward from the outside to the inside is formed above the interlocking plate 23 of the swing side wall 3. The notch surface 32 contacts the upper side surface of the interlocking plate 23 when the swinging side wall 3 is opened, thereby locking the swinging side wall 3 and the interlocking plate 23 and rotating around the pin 21. The moving side wall 3 is also rotated around the shaft 22, and the interlocking plate 23 is rotated around the shaft 22 in conjunction with the rotation of the swing side wall 3. In addition, the notch surface 32 is not limited to a surface, A curved surface, an uneven | corrugated shape, etc. can be suitably set, if it is a shape which can be latched.

  Next, the state when the swing side wall 3 is opened and closed will be described. FIG. 3 to FIG. 5 are schematic views of main parts viewed from the side of the pulverizer when the swing side wall 3 is opened and closed. As shown in FIG. 3, at the initial stage of opening the swing side wall 3, the swing side wall 3 rotates around the pin 21, and the notch surface 32 formed on the swing side wall 3 is located above the interlocking plate 23. Rotates until it touches the side.

  In this case, since the rotation center of the swing side wall 3 is the pin 21 that is substantially vertically below the rotation shaft 60, the rough crushing blade 4 or the crushing blade 6 of the crushing blade cover 31 provided inside the swing side wall 3 The end portion or the edge portion, which is a proximity portion of, moves in an arc shape around the pin 21. As a result, the end or edge of the coarse crushing blade cover 31 moves away from the coarse crushing blade 4 or the crushing blade 6 with the rotation of the oscillating side wall 3. The crushing blade cover 31) can open the swing side wall 3 without interfering with the crushing blade 4 or the crushing blade 6.

  As shown in FIG. 4, when the oscillating side wall 3 is further opened in a state where the notch surface 32 formed on the oscillating side wall 3 is in contact with the upper side surface of the interlocking plate 23, the interlocking plate 23 is 3 is rotated around the through shaft 22 in conjunction with the rotation of 3. That is, in the middle of opening the swing side wall 3, the swing side wall 3 shifts from a state of rotating around the pin 21 to a state of rotating about the through shaft 22. When the swinging side wall 3 rotates around the through shaft 22 arranged outside the pin 21, the swinging side wall 3 is opened further apart from the crushing blade 4 and the crushing blade 6. Widen the opening.

  Further, when the swing side wall 3 rotates around the through shaft 22, the pin 21 of the interlocking plate 23 rotates around the through shaft 22 in an arc shape. As a result, the swing side wall 3 rotates around the through shaft 22 and the pin 21 moves in an arc around the through shaft 22, so that the pin 21 is fixed during the rotation of the swing side wall 3. The rotation of the oscillating side wall 3 can be smoothly shifted, and it is not necessary to slide the oscillating side wall 3 in the horizontal direction, and the oscillating side wall 3 can be opened only by the rotation operation.

  When opening the swinging side wall, in order to avoid interference with the rough crushing blade and crushing blade, the swinging side wall is slid (translated) by a predetermined distance in the horizontal direction and then swung. Although it is conceivable to rotate the side wall to widen the opening, the weight of the oscillating side wall itself is heavy, and as the output of the pulverizer increases, the oscillating side wall becomes larger and the weight becomes heavier. For this reason, in the case of a structure in which the oscillating side wall is translated and pulled out, it is necessary for the operator to pull out with considerable force. On the other hand, fine powder remains on the gap between the swinging side wall and the fixed side wall, or on the bottom surface of the swinging side wall. There is also a risk of unexpected injury.

  In addition, the swinging side wall is arranged so as to be sandwiched between both fixed side walls, and the sliding surface between the swinging side wall and the fixed side wall is close, so that the swinging side wall swings when the swinging side wall is moved in parallel. If the load center of the side wall is shifted from the center of the oscillating side wall in the left-right direction or the vertical direction, an offset load is applied to the oscillating side wall, and the oscillating side wall cannot be moved in parallel with the fixed side wall. There is also a problem that a part of the sliding surface of the moving side wall comes into contact with the fixed side wall and the swinging side wall cannot be moved. Furthermore, when the swinging side wall is rotated after being moved horizontally, the direction of the operating load on the swinging side wall changes greatly from the horizontal direction to the rotating direction during the movement of the swinging side wall. It is necessary to check carefully and workability is not good.

  In the case of the present embodiment, the swinging side wall 3 can be opened and closed smoothly because the swinging side wall 3 can be opened and closed only by rotational movement. In addition, there is no influence of friction and unbalanced load compared to the case of parallel movement, and even if the apparatus is increased in size and the weight of the swing side wall 3 is increased, the operator can easily swing without applying a large force. The side wall 3 can be opened and closed, and the above-described problems when the swing side wall is translated can be solved.

  As shown in FIG. 5, when the swinging side wall 3 is further opened, the swinging side wall 3 rotates around the through shaft 22, and a locking surface 23a provided at the end of the interlocking plate 23 on the through shaft 22 side. Comes into contact with the upper surface of the support base, so that the swinging side wall 3 is restricted from further rotation. Note that the locking member for restricting the rotation of the swing side wall 3 is not limited to the illustrated example, and other configurations may be used. Further, when the swinging side wall 3 is closed, an operation opposite to that described above is performed, and thus the description thereof is omitted.

  As shown in FIG. 5, when the swinging side wall 3 is opened, the inside of the swinging side wall 3 opens wider than in the prior art. In particular, since the end face 31a of the crushing blade cover 31 is located on the outer side away from the crushing blade 4 and the crushing blade 6, the crushing blade cover does not need to be attached / detached as in the prior art, and is simple. With the configuration, the opening of the swing side wall 3 can be widened. This facilitates cleaning of the crushed pieces, shortens the cleaning time, and prevents the crushed pieces from remaining. In particular, when a molding factory is performing the molding process, crushing process, recycling process, etc. in an integrated system, every time the parts to be produced are changed, the crushed pieces remaining in the crusher are removed. This embodiment, which needs to be completely removed and can completely clean the remaining crushed pieces in a short time, can increase the production capacity of the entire production process, and has an excellent effect. Furthermore, since the detachable rough crushing blade cover is not required, a clamp cam for supporting the crushing blade cover is not required, and the number of parts can be reduced. Further, even when the apparatus is enlarged, the work for removing the heavy rough crushing blade cover becomes unnecessary, and the workability is improved.

  Next, the pin 21 as the first fulcrum shaft and the through shaft 22 as the second fulcrum shaft will be described. FIG. 6 is a schematic diagram of a main part viewed from the front of the pulverizer according to the present invention. As shown in FIG. 6, the interlocking plate 23 is disposed between the fixed side wall 2 and the swinging side wall 3, and a hole 23 b (the other hole) provided in the interlocking plate 23 and the fixed side wall are fixed. A through-shaft 22 secured between the fixed side walls 2 and 2 is inserted into the shaft hole 22 b provided in the side wall 2. The threaded shaft 22 has threads on both ends. For example, a nut 22 a is screwed onto the through shaft 22 outside the fixed side walls 2 and 2. In addition, the fixed side wall 2 is being fixed to the support stand with the volt | bolt.

  Further, one end 21a of the pin 21 is inserted into the hole 23a (one hole) provided in the interlocking plate 23 and the insertion hole 3a provided in the swing side wall 3, and the other end 21b of the pin 21 is It abuts on the fixed side wall 2. The interlocking plate 23 disposed between the swing side wall 3 and the fixed side wall 2 inserts one end 21a of the pin 21 mounted in the hole 23a into the insertion hole 3a of the swing side wall 3, thereby It can be swung around the pin 21. Moreover, since the other end 21b of the pin 21 is in contact with the fixed side wall 2, the pin 21 does not come off. Thereby, the rocking | swiveling side wall 3 can be rock | fluctuated with a simple structure, and manufacturing cost can be reduced.

  In the above-described embodiment, the pin 21 is used as the first fulcrum shaft. However, the pin 21 is not limited to the pin. For example, a configuration using a bolt and a nut may be used. Further, the interlocking plate 23 has a substantially elliptical plate shape, but the shape of the interlocking plate 23 is not limited to this, and the fulcrum shafts are linked to each other such as a rod body or a combination of a plurality of members. Any shape can be used as long as it can be used. In particular, the shape can be appropriately determined according to the shapes of the fixed side wall 2 and the swing side wall 3.

Embodiment 2
FIG. 7 is a schematic diagram of a main part viewed from the front of the crusher of the second embodiment. The difference from the first embodiment is that a bolt is used instead of the through-shaft passing between the fixed side walls 2 and 2. As shown in FIG. 7, the bolts 24 are individually provided as the second fulcrum shafts for each fixed side wall 2, instead of blocking between the fixed side walls 2 and 2. That is, a separate bolt 24 is provided on each of the two fixed side walls 2 and 2. The fixed side wall 2 is provided with an insertion hole 22c through which the bolt 24 is inserted, and a nut 22a is screwed into the bolt 24 inserted into the insertion hole 22c and the hole 23b (other hole) of the interlocking plate 23. A bolt 24 attached to a hole 23b of the interlocking plate 23 disposed between the swinging side wall 3 and the fixed side wall 2 is inserted into the insertion hole 22c of the fixed side wall 2, and a nut 22a is screwed. Thereby, the manufacturing cost can be further reduced as compared with a case where a through shaft in which the fulcrum shaft is bridged between two fixed side walls is used. In addition, the interlocking plate 23 can be swung around the second fulcrum shaft of the fixed side wall 2 with a simple structure.

  As described above, according to the present invention, since the swing side wall rotates around the second fulcrum shaft arranged outside the first fulcrum shaft, the swing side wall is opened further apart from the rotary blade. The opening of the swing side wall can be widened. In addition, since the first fulcrum shaft is individually provided on both side surfaces of the swinging side wall facing the fixed side wall, the manufacturing cost is reduced as compared with the case where the fulcrum shaft is bridged between the two fixed side walls. be able to.

  In the above-described embodiment, a configuration may be used in which a through shaft spanned between two fixed side walls is used as the first fulcrum shaft, and three pins and bolts are separately provided as the second fulcrum shaft.

It is the principal part schematic diagram seen from the upper surface of the grinder which concerns on this invention. It is the principal part schematic diagram seen from the side of the grinder which concerns on this invention. It is the principal part schematic diagram seen from the side surface of the grinder at the time of the opening / closing operation | movement of a rocking | swiveling side wall. It is the principal part schematic diagram seen from the side surface of the grinder at the time of the opening / closing operation | movement of a rocking | swiveling side wall. It is the principal part schematic diagram seen from the side surface of the grinder at the time of the opening / closing operation | movement of a rocking | swiveling side wall. It is the principal part schematic diagram seen from the front of the grinder which concerns on this invention. FIG. 4 is a schematic diagram of a main part viewed from the front of a crusher according to a second embodiment.

Explanation of symbols

2 Fixed side wall 3 Oscillating side wall 3a Insertion hole
4 Crushing blade 5 Scraper 6 Crushing blade 7 Fixed blade 7a First fixed blade 7b Second fixed blade 21 Pin (first fulcrum shaft)
22 Through shaft (second fulcrum shaft)
22a Nut 22c Insertion hole 23 Interlocking plate (support member)
23a hole (one hole)
23b hole (the other hole)
24 bolts (second fulcrum shaft)
31 Coarse blade cover 31a End surface 32 Notch surface 60 Rotating shaft

Claims (4)

A fixed side wall provided on both ends of the rotating shaft arranged in a lateral direction, and a swinging opening and closing around an axis below the rotating shaft, provided between the fixed side walls and on both sides of the rotating shaft. A pulverizing machine including a oscillating side wall capable of pulverizing an object to be processed by cooperation of a rotary blade provided on the rotary shaft and a fixed blade provided inside the oscillating side wall;
A support member having two holes spaced apart by an appropriate length and disposed below the rotating shaft and between the swing side wall and the fixed side wall;
A first fulcrum shaft that is individually provided on both side surfaces of the swinging side wall facing the fixed side wall, and is inserted into one hole of the support member;
A second fulcrum shaft provided on the fixed side wall and inserted into the other hole of the support member;
The first fulcrum shaft is disposed inside the second fulcrum shaft with the swinging side wall closed.
The support member is
A crusher characterized in that it is interlocked with the swing of the swing side wall via the first fulcrum shaft and the second fulcrum shaft. The first fulcrum shaft is a pin;
The swing side wall is provided with an insertion hole for inserting one end side of the pin,
The pulverizer according to claim 1, wherein the other end side of the pin is in contact with the fixed side wall.   The crusher according to claim 1 or 2, wherein the second fulcrum shaft is individually provided for each of the fixed side walls. The second fulcrum shaft is a bolt;
The fixed side wall is provided with an insertion hole for inserting the bolt,
The pulverizer according to claim 3, wherein a nut is screwed into the bolt inserted into the insertion hole and the other hole of the support member.

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