WO1990014164A1

WO1990014164A1 - Roll machine for milling

Info

Publication number: WO1990014164A1
Application number: PCT/JP1990/000648
Authority: WO
Inventors: Toshihiko Satake; Takeshi Ishii
Original assignee: Satake Engineering Co., Ltd.
Priority date: 1989-05-22
Filing date: 1990-05-22
Publication date: 1990-11-29
Also published as: EP0429658A1; AU5651190A; JP2788059B2; CA2033055A1; JPH02307544A; EP0429658A4; KR920700770A; KR930006040B1

Abstract

In a roll machine for milling having at least one set of rolls in pair consisting of a high speed roll (2) supported by a fixed bearing and a low speed roll (3) supported by a mobile bearing (8) and rotated in the reverse direction to that of high speed roll and equipped with a roll gap adjusting mechanism, a roll gap rough adjustment mechanism consists of an eccentric ring (10) and a driving mechanism (11, 12, 13) thereof, and a roll gap fine adjustment mechanism consists of an eccentric ring (14) for roll gap fine adjustment connected with a roll gap fine adjustment shaft (17) through a spring (15) and a driving mechanism (27, 28, 29) thereof, are provided, and the supporting frame body of a bearing main body (8e) of the aforementioned mobile bearing (8) is constituted to be divisible to first and second parts (8a, 8b), and since the first part (8a) is separated to be removable/mountable from/to a fixed bearing (9), removal/mounting of roll can be performed easily without removing the roll gap adjustment mechanisms.

Description

Ayanagi Rolling machine for milling technology

The present invention relates to a technology related to a roll for milling.

A conventional roll machine will be described with reference to FIGS. 6 and 7. FIG. FIGS. 6 and 7 show a so-called double roll machine, in which one frame 1 13 is divided into two sections 1 1 5, 1 by a partition 1 1 4. It is divided into 16 and a pair of rolls 110 1 and 0 2 are provided symmetrically in each section 115 or Ί 16 respectively. Normally, a roll 102 for low-speed rotation is provided on the side near the middle partition 114. The high-speed rotation roll 101 is pivotally supported by a fixed bearing 103, and the low-speed rotation roller 102 is pivotally supported by a movable or movable bearing 104. Yes. The moving bearing 104 is rotatable about the fulcrum pin 105, and the size of the gap between the rolls 110.102 is controlled by the roll gap adjusting means. Adjusted.

That is, the shaft of the hole gap adjusting handle 106 provided outside the frame 113 and the connecting rod 107 connected to the moving bearing 104 are provided. Are connected by a room 108. In addition, a position closer to the connecting rod 107 than the center of the arm 108 in the longitudinal direction is a fulcrum for the arm 勧 08. The movable bearing 104 is moved closer to and away from the fixed bearing 103 by operating the handle 106. The size of the gap between the rule 101 and the rule 102 was adjusted.

At this time, when the rolls 101 and 102 are worn, etc., when replacing the rolls 101 and 102, install them on the left and right side walls 110 and 110. The replacement work was complicated because the adjustment means had to be removed.

On the other hand, recently, the roll gap adjustment will be performed by a motor controlled by a micro computer instead of the handle 106. (See Japanese Patent Publication No. 60-52, 826, etc.). However, there has been little progress in technology for facilitating the exchange of rolls. For example, an apparatus disclosed in Japanese Patent Publication No. 60-62862 is known. Also, remove the connecting rod connecting the two bearings as a roll clearance adjusting means, and then lift both ends of each roll with a winch or the like. , And the replacement work was complicated. Disclosure of the invention

The present invention has been made to at least partially eliminate the above-mentioned problems, and its purpose is to eliminate the roll gap adjusting means and to make it easier. Roll removal ♦ To provide a milling roll machine that can be mounted. According to the present invention, the purpose is fixed to the frame on the side near the opening of the roll notch formed in each of the opposing side walls. A fixed bearing, a moving bearing fixed to the frame at a position farther from the opening than the fixed bearing, and a high-speed roll and a moving bearing rotatably supported by the fixed bearing. And at least a pair of low-speed rolls, which are rotated in the opposite direction to the high-speed rolls at a lower peripheral speed than the high-speed rolls. A roll mill for milling, comprising: a roll gap adjusting means for coarsely adjusting a gap between rolls; And a roll gap fine-adjustment means for finely adjusting the gap between the rolls, and the bearing body of the moving bearing is provided. Is divided into a first part and a second part.The first part, which is closer to the fixed bearing than the second part, is divided and the fixed bearing is detachable. The coarse adjustment means is configured to roughly adjust the gap between the rolls and the eccentric ring coupled to one end pivotally supported by the side wall of the second portion. And a means for driving. The fine adjustment means includes a roll gap fine adjustment shaft associated with the other end of the second portion, and a fine adjustment shaft. An eccentric ring for fine adjustment of the roll gap provided on the opposite side of the moving bearing from the fixed bearing and means for driving the eccentric ring, which are connected via a spring. This is achieved by a milling roll having the following characteristics.

Preferably, the coarse adjustment eccentric wheel driving means includes an arm connected at one end to a main shaft of the coarse adjustment eccentric wheel; And an air cylinder device connected to the other end of the system. The fine adjustment eccentric wheel driving means is preferably a worm gear fixed to the main shaft of the fine adjustment eccentric wheel, and a motor coupled to the worm gear. And a worm operated by a computer.

When replacing the roll in the milling roll machine configured as described above, the fixed bearing is removed from the side wall by a cone, and the fixed bearing is fixed together with the fixed bearing by a winch or the like. The high-speed roll supported by this fixed bearing is taken out of the machine from the roll cutout opening. Next, with the first part closer to the fixed bearing side than the second part of the support frame of the bearing body of the moving bearing, separated from the second part, the low-speed rotation is performed together with the bearing body, that is, the bearing part. Take the tool out of the machine through the opening. Then, a new low-speed roll for replacement is inserted together with the bearing main body from the opening and attached to the second part of the support frame of the bearing main body of the moving bearing, and the divided moving is performed. The first part of the bearing is combined with the second part. Next, a new high-speed roll for replacement together with the fixed bearing is inserted through the opening and fixed to the side wall. When replacing, only one of the high-speed roll and the low-speed roll may be replaced with a new one.

As described above, in the milling machine of the present invention, since the roll gap coarse adjustment means is provided at a position farther from the opening of the roll notch, the roll gap coarse adjustment means is provided. Even when the roll is moved in and out by a winch or the like, the roll gap coarse adjustment means does not have to be changed, and a control unit, for example, can be arranged near the fixed bearing. BRIEF DESCRIPTION OF THE FIGURES

The above and other objects, features and advantages of the present invention will become more apparent from the description of preferred embodiments with reference to the drawings. FIG. A partial cross-sectional side view of a milling machine of one embodiment;

Fig. 2 is an enlarged view of a part of the roll machine shown in Fig.

Fig. 3 is a plan view of a part of the roll machine shown in Fig. 2,

FIG. 4 is a perspective view of a part of the roll machine shown in FIG. 2,

FIG. 5 is an enlarged sectional view of a part of a milling machine according to another preferred embodiment of the present invention.

Fig. 6 is a front view of a conventional milling roll, and

FIG. 7 is a partially cutaway side view of the roll machine shown in FIG. Preferred embodiment

FIGS. 1 to 4 show a preferred embodiment of a milling roll according to the present invention, and FIGS. 1 to 4 show a frame 1 forming a milling roll. The front wall 1a and the rear wall 1b have a high-speed opening — a roll 2 and a low-speed roll 3 that is rotated in the opposite direction to the roll 2 at a lower peripheral speed than the roll 2 An opening 4 is formed in each of the openings 4 for letting in and out, and a roll cover 5 is detachably attached to the opening 4. In FIG. 1, reference numerals 6a and 6b denote side walls on the front side and the back side of the frame 1, respectively. In the following, the side walls 6a and 6b are collectively represented by reference numeral 6. Corresponding to each opening 4, both side walls 6 of frame 1 A notch 7 for roll access is provided. The notch 7 for roll entry / exit becomes wider near the opening 4 on both sides, and the notch 7 also has a reference numeral 7a toward the center of the roll machine. It extends elongated and horizontally to the center to the position shown by. A moving bearing 8 is provided on a side near the closed end 7 a of the roll access notch 7, and a fixed bearing 9 is provided on a side near the opening 4. The moving bearing 8 rotatably supports the low-speed roll 3, and the fixed bearing 9 rotatably supports the high-speed roll 2. A contact plate 48 is provided between the fixed bearing 9 and the moving bearing 8.

More specifically, the fixed bearing 9 is fixed to the mount 54 of the side wall 6 of the frame 1 by a port. Of the support frame of the moving bearing 8, that is, the bearing frame 8 e, about a little less than half of the side near the fixed bearing 9 becomes a case 8 a separate from the remaining frame 8 b. The split case 8 is detachably fixed to the frame 8 b of the moving bearing 8 by a port. The lower end 8c of the support frame rest 8b of the moving bearing 8 is eccentrically connected to the main shaft 11 rotatable around the center axis 11a. It is pivotally attached to the side wall 6 via the adjusting eccentric 10. The drive means of the eccentric wheel 10 includes an arm 12 fixed at one end to the shaft 11 of the eccentric wheel 10 and a rod Ί 3 a which can be extended and contracted to the arm 12. It is composed of an air cylinder device 13 for coarse adjustment of the roll gap to which the tip is connected. As described in detail in FIGS. 2 to 4, the upper end 8d of the support frame rest 8b of the moving bearing 8 (see FIGS. 2 to 4) is movable. Bearing 8 Eccentric wheel for fine adjustment of roll gap provided on the opposite side to fixed bearing 9 Connected to eccentric ring for fine adjustment of roll gap 14 connected to driving means via disc spring 15 It has been.

More specifically, a groove 16 is formed at the upper end 8 d of the moving bearing 8. A fine gap adjusting shaft 17 is engaged in the groove 16, and the fine adjusting shaft 17 extends in a substantially horizontal direction along the groove 16. The fine adjustment shaft 17 is further loosely fitted into the holes 18a, 19a of the pair of fixing plates 18, 19 for fixing, which are 7 mm to 19 mm. The pair of support plates 18 and 19 are attached to two screw shafts 20 and 20 and are fixed to each other. The fine adjustment shaft 17 penetrated between the large diameter locking shaft portion 17a formed on the fine adjustment shaft 17 and the support plate 18 on the side close to the fixed bearing 9. A plurality of disc springs 15 are provided. The upper end 8 d of the moving bearing 8 is provided with a locking shaft 17 a and a support plate closer to the center of the device so that the groove 16 is engaged with the fine adjustment shaft 17. It is inserted between the box 19. Convex portions 21 and 21 are formed at portions of the support plate 19 which come into contact with the upper end 8 d of the moving bearing 8, and the upper end 8 d of the moving bearing 8 is formed. Of these, concave portions 22, 22 are formed in portions corresponding to or in contact with the convex portions 21, 21. Also, between the upper end 8d of the moving bearing 8 and the locking shaft 17a, several rings 23 fitted on the shaft 17 are arranged. A convex portion 24 protruding in an arc around a horizontal line is formed at a portion of the upper end portion of the bearing 8 which comes into contact with the ring 23. δ Next, the eccentric wheel driving means for fine adjustment of the roll gap will be described. On a flange wall 25 formed substantially vertically along the center line の of the side wall 6, a gear case 26 and a motor 27 rotatable in both directions are provided with a motor 27, respectively. Are fixed in a state where they are positioned on the gear case 26 (because the left and right portions of the center line Δ are formed mirror-symmetrically with respect to the flange wall 25). Only one will be explained). The gear 26 has a worm 28 fixed to the shaft of the motor 27 and a worm wheel 2 corresponding to the worm 28. 9 and are built-in. The worm wheel 29 is fixed to the main shaft 14a of the fine adjustment eccentric wheel Ί4 attached to the gear case 26 and engages with the eccentric wheel 14 The fine adjustment shaft 17 described above is fixed to the removed core 30. The eccentric shaft 14 has a cylindrical peripheral surface with a concave surface complementary to this peripheral surface. 0 is pressed by the extension force of the disc spring 15.

The force par 34 surrounds the high speed roll 2 and the low speed roll 3 to form a grinding chamber 35. An outflow hopper 32 is formed in the lower part of the grinding chamber 35, and the lower end of the transfer pipe 33 is opened in the outflow hopper 32. Above the grinding chamber 35, a supply means 50 of the stock is provided. That is, a stock supply cylinder 36 made of a transparent wall is provided at the center of the upper surface wall 1c of the frame 1. The space in the storage cylinder 36 is used to supply storage to the two roll pairs (2, 3; 2, 3). And is divided into two stock supply chambers 38, 38. Each of the stock supply chambers 38 and 38 is provided with an upper level sensor 39 and a lower level sensor 40, respectively. It is connected to the . A supply hopper 41 is formed below the supply chamber 38, and a lower end of the supply hopper 41 is driven by a motor (not shown). Feed rolls 42 and 43 of the book are provided in parallel. In the vicinity of the feed roll 42, a feeder gate plate 44 is provided so as to be rotatable around the rotary pin 44a. The feeder gate plate 44 is fixed to the pivot pin 44a by the feeder gate opening / closing cylinder 45 and the feeder gate adjusting device 46. ♦ It is turned around and is close to the feed roll 42 ♦ It is separated and the flow path or passage between the feed port 42 and the gate plate 44 is It is opened and closed, and its opening (size) is adjusted. The feeder gate plate 44 is provided in connection with the feed roll 43, instead of being provided in connection with the feed roll 42. Or better: Following the feed rolls 42 and 43, there is a guide stub 47 extending almost vertically. The lower end of the guide chamber 47 is open above the gap between the high-speed roll 2 and the low-speed roll 3 in the grinding chamber 35.

Next, the unusual operation and operation of the milling roll machine 60 of the embodiment configured as described above will be described. When the driving of the main motor (not shown) is started and the high speed port 2 and the low speed roller 3 are rotated, the electric signal from the control section 52 is transmitted. The rod 13a of the cylinder device 13 for coarse adjustment of the roll gap is stretched by the signal, and the arm Ί2 and the main shaft 11 are connected to the center axis 1 of the main shaft 1 "1.回動 It is rotated around a, and the state shown by the two-dot chain line in Fig. 2. At this time, the eccentricity for the roll gap coarse adjustment eccentric to the center of the main shaft 11 By the eccentric rotation of the picture 10, the moving bearing 8 is largely moved in the direction B so as to approach the fixed bearing 9, and the primary adjustment of the gap between the rolls 2 and 3 is performed. When the moving bearing 8 is moved in the direction B, the convex portion 24, the concave portion 22 of the upper end 8d of the moving bearing 8 and the convex portion 21 of the support plate 19 are supported by the fulcrum. When the coarse adjustment is completed, the motor 27 is then started and the eccentric ring for fine adjustment is eccentric with respect to the main shaft Ί4a. 1 4 to spindle 1 4 a Rotate around the axis 14 b. With the rotation of the eccentric shaft 14, the large-diameter shaft 17 a of the fine adjustment shaft 17 is supported via the disc spring 15. Move the plate No. 8 in the direction C. As the support plate 18 moves in the direction C, it is integrated with the plate 18 via the rod 20 The supporting plate 19 is also moved in the direction C. Accordingly, the concave portion 22 of the upper end 8 d of the moving bearing 8 is pressed by the convex portion 21 of the supporting plate 19. The upper end 8d is moved in the direction C. As a result, the low-speed roll 3 supported by the moving bearing 8 is moved closer to the high-speed roll 2 around the eccentric wheel 10 for coarse adjustment. The gap between the rolls 2 and 3 is set to a predetermined size.

After fine-tuning as a secondary adjustment, When the stock of wheat, rice, etc. to be ground is supplied to the stock supply room 38 to the level specified by the upper limit level sensor 38, the upper limit level level is set. The sensor 38 detects "there is a stock" and issues a detection signal. When the control unit 52 receives the detection signal from the upper limit level sensor 38, the feeder gate opening / closing cylinder 45 is driven under the control of the control unit 52, and is depressed. The feeder gate plate 44 is moved to a position where the stock passage is opened. On the other hand, under the control of the control unit 52, the two feed rolls 42.4.43 are forcibly moved in the direction D in which the stock is conveyed toward the guide shot 47. It is rotated to. The stock spreads almost uniformly in the axial direction of the rolls 4 2 and 4 3, and depends on the turning speed in the D direction of the feed rolls 4 2 and 4 3. It is sent into the guide stub 47 at an appropriate speed. The stock flowing down from the guide seat 47 is subjected to a grinding action while passing through the gap between the high-speed roll 2 and the low-speed roll 3, and then flows out of the outlet hot. It falls into par 32. The milled stock in the outflow hopper 32 is sent to the next process by the air flow passing through the transfer pipe 33.

When the stock in the stock supply chamber 38 decreases to the level defined by the lower limit level sensor 40, the lower limit level sensor 40 becomes “storage”. When the control unit 52 receives a detection signal from the lower limit level sensor 40, the feeder gate plate 4 4 is controlled under the control of the control unit 52. Is moved to a position that closes the stock passage, and the rotation of feed rollers 42 and 43 stops. Is received. Also, under the control of the control unit 52, the motor 27 is driven to rotate in the reverse direction, and the upper end 8 of the moving bearing 8 is driven by the locking shaft 17a of the fine adjustment shaft 17. d is moved in the direction E to expand the roll gap. Also, when the rod 13a of the coarse adjustment cylinder device 13 is contracted and the coupling end of the arm 12 is turned downward, the lower end 8c of the moving bearing 8 becomes F In the direction, and the gap between the rolls 2 and 3 is widened. In this state, the operator of the roll machine 60 turns off the power and stops the main motor (not shown).

Next, the roll exchange will be described. When replacing the rolls 2 and 3, remove the cover (not shown) covering the control mechanism on the outside of each side wall 6 of the frame 1 (see FIG. 1). The left side of the center line), the roll force par 5 and the contact plate 48 forming a part of the side wall 6 are removed to expose the roll notch 7. First, the fixed bearing 9 is detached from the mount 54 of the side wall 6, and the shafts at both ends of the high-speed portal 2 are supported using a winch or the like. The speed 2 and the fixed bearing 9 are taken out of the machine through the opening 40. Next, the support frame of the bearing member 8e of the moving bearing 8 is divided into two parts 8a and 8b, and the low-speed roll 3 is moved by using a winch or the like as in the above [1]. While carrying, the low-speed roll 3 is taken out of the machine from the opening 4 while the bearing body, that is, the bearing member 8e is mounted on the low-speed roll 3. When installing new rolls 2 and 3 for replacement, contrary to the above-mentioned removal, low-speed rolls for replacement with the bearing body 8e mounted are installed. Move 3 Bearing ί ^: After being mounted on the support frame 8b, the support frame 8a of the divided moving bearing 8 is united with the support frame 8b. Next, the high-speed roller for replacement 2 previously mounted on the fixed bearing 9 is inserted together with the bearing 9 to a predetermined position near the opening 4, and the fixed bearing 9 is mounted on the mount 5. Fix it to 4 and attach the covers.

FIG. 5 shows another embodiment of a simpler structure of the roll gap fine adjustment means. In FIG. 5, the fine adjustment shaft 17 is engaged with the groove 16 of the upper end 8 d of the moving bearing 8, and the upper end 8 d is connected to the large-diameter locking shaft 17 b. It is arranged between the disc spring 15 and. The large-diameter shaft part 17b of the fine adjustment shaft 17 or the plate 17b fixed to the shaft 17 in the recess formed on the end face of the upper end 8d facing the fixed bearing 9 The projections 56 are engaged. A convex portion 58 formed on the end surface of the upper end portion 8d on the opposite side to the fixed shaft 9 is pressed in the C direction by one end of a disc spring 15 via a ring 23. The other end of the disc spring 15 is locked by a nut 50. In the case of this example, the disc bearing 15 is also directly interposed when moving the moving bearing 8 in the direction C for decreasing the gap between the rolls 2 and 3 and in the direction E for increasing the gap. Do In this case, the space around the fixed bearing 9 can be opened wider than in the previous embodiment, and the entrance and exit of the rolls 2 and 3 can be more easily performed.

Claims

The scope of the claims

1. A fixed bearing fixed to the frame on the side near the opening of the roll notch formed in each of the opposing side walls, and farther from the opening than the fixed bearing A moving bearing fixed to the frame at the position, a high-speed roll rotatably supported by the fixed bearing, and rotatably supported by the moving bearing, lower than the high-speed roll A milling roll having at least one set of a pair of low-speed rolls, which are rotated in the opposite direction at a peripheral speed, wherein the roll is a roll. A roll gap adjusting means for roughly adjusting a gap between the rolls and a roll gap fine adjusting means for finely adjusting a gap between the rolls. The support frame of the bearing body of the moving bearing is configured so as to be dividable into first and second parts. A first portion close to the fixed bearing is divided and can be attached to and detached from the fixed bearing; the coarse adjusting means comprises an eccentric wheel for coarsely adjusting a gap between the rolls; Means for driving the eccentric wheel coupled to one end pivotally supported by the side wall, wherein the fine adjustment means engages the other end of the second portion. The fine adjustment shaft for the roll gap is connected to the fine adjustment shaft via a spring, and the fine adjustment shaft for the roll gap is provided on the opposite side of the fixed bearing of the moving bearing. A milling machine having eccentricity ^ and means for driving the eccentric wheel.

2. The coarse adjusting connecting ring driving means is a coarse adjusting eccentric wheel. 2. The milling machine according to claim 1, further comprising an arm connected at one end to the main shaft of the arm, and an air cylinder device connected to the other end of the arm. Rule machine.

3. The eccentric wheel driving means for fine adjustment is combined with a worm gear fixed to the main shaft of the eccentric wheel for fine adjustment and the worm gear, and is operated by a motor. The milling roll according to claim 1, which has a form and a claim.

4. The eccentric wheel driving means for fine adjustment is combined with a worm gear fixed to the main shaft of the eccentric wheel for fine adjustment and the worm wheel, and is operated by a motor. The milling roll according to claim 2, having a worm.