JP5127756B2 - Mating mill vs. type mill - Google Patents

Description

  The present invention relates to a mating mill pair type mill that includes a mating mill pair composed of a fixed outer mill and a rotating inner mill and crushes and mills grains.

  As shown in Patent Document 1, a mating mill pair type milling machine including a mating mill pair in which a rotating millstone is fitted and arranged in a fixed outer mill slides in the rotation axis direction about the rotating millstone. A cylindrical slide holder that can be supported, and a gap setting lever that is connected via a link to set the required fitting surface gap by moving the slide holder forward and backward. By tilting the lever, the gap between the mating surfaces of the mating mortar can be set. By adjusting the milling gap by simple lever operation, a wide range of milling particle sizes can be set. With the spring interposed in the link, it is possible to ensure the milling mill pressure with a certain elastic force.

Japanese Utility Model Publication No. 57-115648

  However, since the gap setting lever is connected from the milling main body portion by the inner and outer mortars to be fitted to each other via a complicated exposure link mechanism such as a reverse link, a cone rod, a stopper, and a spring, Not only manufacturing cost problems including assembly adjustment during manufacturing, but also complicated maintenance for removing flour adhering to exposed link mechanisms such as links attached to gap setting levers and springs when the mill is in operation There was a problem of being forced.

  An object of the present invention is to provide a mating mill-pair type milling machine capable of reducing the manufacturing cost and facilitating maintenance during operation while ensuring the operability of setting the gap of the mating mill pair. It is in.

  The invention according to claim 1 includes a fitting mortar pair composed of a fixed mortar and a rotating inner mortar that are fitted together, and a slide holder that pivotally supports the rotating mortar and is slidable in the fitting axial direction. In the fitting mill-pair type milling machine provided with a spring that slides the slide holder and applies a milling mill pressure to the mating mill pair, the milling body section includes a spring. The camshaft which formed the cam part which regulates the sliding operation | movement of the slide holder by this was supported integrally.

  The milling machine having the above-mentioned configuration is configured as a unit capable of adjusting the milling gap by rotating the camshaft because the camshaft formed with the cam part that regulates the sliding operation of the slide holder is integrally supported on the milling body part. The milling body can be handled.

According to a second aspect of the present invention, in the configuration of the first aspect, the cam shaft is disposed horizontally with its rotation axis facing outward of the fitting axis of the milling main body, and for the rotation operation. An adjustment lever is provided.
Since the rotation axis of the cam shaft is disposed horizontally toward the outside of the milling main body, the cam shaft is rotated by the front / rear or vertical rotation of the adjustment lever for the rotation operation.

According to a third aspect of the present invention, in the configuration of the first aspect, the one end of the spring is connected to the slide holder, and the other end is supported to the milling main body so as to be slidable at the operating position of the cam portion. Features.
The above-mentioned spring is integrated with the milling body together with the camshaft, and the elastic force of the spring corresponding to the rotation of the camshaft is fitted by receiving the action of the cam on the end. Acts on mortar pairs.

According to a fourth aspect of the present invention, in the configuration of the third aspect, the spring is provided on both side portions of the slide holder, and an arm that acts on each spring is provided to pivotally support an interlocking shaft, and one of the arms is supported. Is arranged at the operating position of the cam portion.
Since one arm that receives the action of the cam portion can be rotated simultaneously with the other arm via the interlocking shaft, the slide holder can be elastically balanced from both sides via the spring that receives the action of each arm. Receive power.

  In the flour mill of the first aspect of the invention, the slide holder that supports the rotating inner die and can be slid in the fitting axial direction receives the elastic force of the spring in the direction in which the fitting die pair is fitted and contacted. By performing a sliding operation until the mating mortar pair comes into contact with the mating force, the milling die pressure corresponding to the spring force of the spring acts on the mating surface, so that fine milling is possible by the milling main body, When the sliding movement of the slide holder is restricted by the cam portion of the cam shaft, the milling gap of the mating mortar pair is adjusted according to the rotation of the cam shaft integrated with the milling main body portion.

  As described above, the milling machine integrally supports the camshaft that forms the cam portion that regulates the sliding operation of the slide holder biased by the spring 21 on the milling main body portion. Since the milling body can be handled as a unit that can adjust the milling gap by rotating operation, there is no need to assemble an incidental structure such as a link connected to a lever for setting the gap, or troublesome maintenance. As a whole, the mill can reduce maintenance costs and facilitate maintenance during operation.

  In addition to the effect of the first aspect, the flour mill of the invention of claim 2 horizontally arranges the rotation axis of the cam shaft toward the outer side of the fitting axis of the milling main body, and for the rotation operation thereof. Since the adjustment lever is provided, the cam shaft is rotated by the front / rear or vertical rotation of the adjustment lever. Therefore, the above-mentioned fitting pestle type milling machine has a simple adjustment lever attached to the cam shaft. The gap can be set by operation.

  According to a third aspect of the present invention, in addition to the effect of the first aspect, the one end of the spring is connected to the slide holder, and the other end is slidably supported on the milling main body at the operating position of the cam portion. By receiving the action of the part at the end, the milling mill pressure corresponding to the turning movement of the camshaft acts on the mating mill pair, so the milling main body can be handled as a unit including the spring As a whole, the mill does not require assembly of a separate accessory structure such as a spring-loaded link to set the milling mill pressure, and troublesome maintenance. Can be facilitated.

  According to a fourth aspect of the present invention, in addition to the effect of the third aspect, a spring is provided on both sides of the slide holder, and an interlocking shaft that is integrally transmitted is provided with an arm that acts on each spring. Since one arm that receives the action of the cam portion rotates simultaneously with the other arm via the interlocking shaft, the arm that receives the action of each arm is placed through the spring that receives the action of each arm. As a result, the slide holder receives a resilient force in a balanced manner from both sides, so that a stable operation of the slide holder is ensured.

Front view (a) and side view (b) of milling machine Expanded longitudinal section of milling body Main part exploded perspective view of milling gap setting mechanism Partial sectional plan view (a) and side view (b) of milling gap setting mechanism Action diagram of spring by camshaft

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
FIG. 1 is a front view (a) and a side view (b) of the mill. The flour mill 1 includes a hopper 5 that holds a milling main body 4 that pulverizes and mills grain by a support unit 3 provided with a drive unit 2, and supplies the grain to the milling main body 4. The main body portion 4 includes a milling gap setting mechanism 7 including a gap adjusting lever 6 that can be held at the operation position by the holding portion 6a.

  Specifically, as shown in FIG. 2, an enlarged vertical cross-sectional view of the milling main body 4 supports a fitting mortar pair composed of a fixed outer mortar 11 and a rotating inner mortar 12, and the rotating inner mortar 12. And a slide holder 13 that can be moved back and forth with respect to the fixed outer die 11.

  The mating mortar pairs 11 and 12 are configured so that the conical surface gap S can be adjusted by advancing and retreating the rotary inner mortar 12 on a conical surface formed with a groove-like pattern for pulverizing and feeding the input grains. Is done. The central axis 12a of the rotary inner mortar 12 includes a spiral portion 12b that feeds the grain, extends rearward, passes through a hollow portion of the slide holder 13, and includes a pulley 16 at a shaft end that protrudes rearward. 2 is supported by the two bearings 17 and 17 on the slide holder 13 while receiving rotational power. The slide holder 13 is installed in the housing 18 of the milling main body 4 so as to be slidable in the axial direction of the central axis 12 a of the rotary inner die 12, and is connected to the housing 18 by a non-rotating pin 19.

  As shown in FIG. 3, an exploded perspective view of the main part of the milling gap setting mechanism 7 includes two springs 21 and 21 by coil springs that act on the slide holder 13 at both outer positions thereof, and these two springs. It comprises an interlocking shaft 22 provided with arms 22a and 22a that act on the shafts 21 and 21, respectively, so that the springs 21 and 21 are supported so as to be interlocked, and a cam shaft 23 that acts on the interlocking shaft 22.

  The springs 21 and 21 have guide rods 31 and 31 connected to one end of the milling body portion 4 as shown in FIG. 4 which is a partial sectional plan view (a) and a side view (b) of the milling gap setting mechanism 7. Adjustment is provided with spring nuts 33, 33 projecting on both sides of the slide holder 13 at the other end side so as to be slidably connected to guide portions 32, 32 projecting on both sides of the housing 18. The bolts 34 and 34 are connected. The elastic force by these two springs 21 and 21 acts in a direction to reduce the fitting surface gap S of the fitting die pairs 11 and 12 via the slide holder 13, and the magnitude of the elastic force is determined by the guide. This corresponds to the amount of expansion and contraction of the springs 21 and 21 accompanying the slide of the rods 31 and 31.

  The interlocking shaft 22 is pivotally supported so as to traverse the upper portion of the housing 18 of the milling main body 4, and the arms 22 a and 22 a at both ends thereof similarly act on the guide rods 31 and 31 of the two springs 21 and 21, respectively. In this way, the elastic force of the two springs 21 and 21 acts equally on both sides of the slide holder 13.

  The cam shaft 23 includes a cam portion 35 at one end thereof. The cam portion 35 is formed by an eccentric cam using a cylindrical pin, and is supported by a holder 36 attached to the housing 18. The rotation axis of the cam shaft 23 is disposed horizontally toward the outer side of the milling main body 4, and the adjustment lever 6 is disposed orthogonal to the outer end thereof. Further, a relay pin 37 acting on one arm 22a of the interlocking shaft 22 is provided, and this relay pin 37 is supported by the holder 36 so as to be able to advance and retreat by the cam portion 35, so that the guide rods 31 and 31 are within the sliding range. The operating positions of the springs 21 and 21 are configured to be adjustable. In order to adjust the operating position according to the rotation position of the cam shaft 23, one end A of the rotation range of the cam shaft 23 is made to correspond to the most advanced position of the guide rods 31, 31, and the other end C is made to correspond to the last retracted position.

  Further, an engagement portion 38 that can be engaged with the cam portion 35 is formed in the slide holder 13, and the sliding movement of the slide holder 13 by the springs 21, 21 is restricted by the engagement of the cam portion 35, so The fitting surface gap S of 11 and 12 is configured to be adjustable. In order to adjust the fitting surface gap S according to the rotation position of the cam shaft 23, one end A of the rotation range of the cam shaft 23 is the maximum gap position of the fitting surface gap S, and the position B immediately before reaching the other end C. Is made to correspond to the position where the gap is closed and the fitting contact is made.

  The flour mill 1 having the above-described configuration can set the mating surface gap S of the mating die pairs 11 and 12 by operating the adjustment lever 6 of the milling gap setting mechanism 7 provided in the milling main body 4. The relationship between the mutual action of the members, the fitting surface gap S of the fitting die pairs 11 and 12, and the milling die pressure will be described.

  As shown in FIG. 5, the springs 21 and 21 are connected to the relay pin 37 that moves forward and backward under the action of the cam portion 35 having a rotation range from one end A to the other end C. The positions of the guide rods 31 and 31 change with the abutting contact, and the elastic force similarly acts on the spring receiving portions 33 and 33 projecting on both sides of the slide holder 13 via the interlocking shaft 22. Then, the rotary inner die 12 is elastically biased in a direction to close the fitting surfaces of the fitting die pairs 11 and 12, so that the cam shaft 23 is rotated to the fitting surface of the fitting die pairs 11 and 12. The elastic force of the spring of the corresponding length acts as milling mill pressure.

  Further, the cam portion 35 engages with the engaging portion 38 of the slide holder 13 in the rotation range from the one end A to the immediately preceding position B from the other end C, and regulates the slide position of the slide holder 13, thereby The fitting surface gap S of the fitting die pairs 11 and 12 is defined according to the rotational position of the shaft 23.

  In this way, the pair of mating mortars 11 and 12 are milled on the mating surfaces by the elastic force of the springs 21 and 21 that expand and contract according to the angular position from one end A to the other end C of the rotation range of the cam shaft 23. The fitting surface gap S is defined by the slide holder 13 that receives the mortar pressure and receives the regulation of the slide position according to the rotation position from the one end A to the other end C of the rotation range of the cam shaft 23. In particular, by making the cam portion 35 an eccentric cam using a cylindrical pin, the elastic force of the springs 21 and 21 is constant in the range in which the slide holder 13 and the guide rods 31 and 31 move simultaneously.

  Accordingly, as the holding position by the tilting operation of the adjusting lever 6 approaches the immediately preceding position B from the one end A of the rotation range, the milling mill pressure is maintained constant while the fitting surface gap S decreases. Large grain pulverization processing by large grinding of a desired size in a range is possible, and then the milling mill pressure gradually increases with contact with the fitting surface as it approaches the other end C from the immediately preceding position B. It is possible to cope with milling processing, for example, milling of a hard material. The cam section 35 can be set with various cam characteristics. In particular, by setting the cam characteristics for the slide holder and the cam characteristics for the guide rod individually, a wide range of milling characteristics can be easily realized. can do.

  In addition, the milling machine having the above-described configuration is configured such that the camshaft that forms the cam portion that regulates the sliding operation of the slide holder biased by the spring is pivotally supported by the milling main body portion. Since the milling main body can be handled as a unit that can adjust the milling gap by dynamic operation, there is no need for assembly of incidental structures such as links connected to the gap setting lever, troublesome maintenance, etc. As a whole milling machine, manufacturing costs can be reduced and maintenance during operation can be facilitated.

  In addition, since the rotation axis of the cam shaft is horizontally arranged toward the outer side of the fitting axis of the milling main body, the adjustment lever for the rotation operation is provided, so that the adjustment lever is arranged in the front-rear or vertical direction. Since the cam shaft is rotated by this rotation operation, the fitting mill-pair type mill can set the gap by a simple operation of an adjustment lever attached to the cam shaft.

  Further, by arranging the spring along the slide holder, connecting one end thereof, and supporting the other end slidably on the milling main body at the operating position of the cam portion, and receiving the operation of the cam portion at one end, Since the milling mill pressure corresponding to the pivoting motion of the camshaft acts on the mating mill pair, the milling main body can be handled as a unit including the spring, so that the milling mill pressure is set. There is no need for assembling a separate incidental structure such as a spring-loaded link or the troublesome maintenance thereof, and the milling machine as a whole can reduce manufacturing costs and facilitate maintenance during operation.

  In addition, the springs are provided on both sides of the slide holder, are provided with arms that act on the respective springs, pivotally support an interlocking shaft, and one of the arms is disposed at the working position of the cam portion. Since the arm that receives the action of each part can rotate simultaneously with the other arms via the interlocking shaft, the slide holder receives elastic force from both sides of the slide holder via the spring that receives the action of each arm. As a result, stable operation of the slide holder is ensured.

DESCRIPTION OF SYMBOLS 1 Fitting mill pair type milling machine 4 Milling main body part 6 Gap adjustment lever 7 Milling gap setting mechanism 11 Fixed outer mill (fitting mill pair)
12 Rotating inner die (Mating die pair)
12a Central shaft 13 Slide holder 18 Housing 21 Spring 22 Interlocking shaft 22a Arm 23 Cam shaft 31 Guide rod 32 Guide portion 33 Spring receiving portion 35 Cam portion 37 Relay pin 38 Engaging portion A One end B Immediate position C Other end S Fitting surface gap

Claims (4)

While equipped with a milling main body consisting of a pair of fitting mortars composed of a fixed outer mortar and a rotating inner mortar that are fitted together, and a slide holder that pivotally supports the rotating inner mortar and can be slid in the fitting axial direction, In the mating mill pair type milling machine provided with a spring that operates the milling mill pressure on the mating mill pair by sliding the slide holder,
A fitting mill-pair type mill, wherein a cam shaft having a cam portion for restricting a sliding operation of a slide holder by a spring is integrally supported on the milling main body portion.   2. The cam shaft according to claim 1, wherein the cam shaft is horizontally arranged with its rotation axis facing outward of the fitting axis of the milling main body, and further includes an adjustment lever for the rotation operation. Mating mill pair type milling machine.   2. The fitting mill-pair type mill according to claim 1, wherein one end of the spring is connected to the slide holder and the other end is slidably supported by the milling main body at the operating position of the cam portion. .   The spring is provided on both side portions of the slide holder, and an interlocking shaft that is provided with an arm that acts on each spring and is integrally transmitted is pivotally supported, and one of the arms is disposed at the working position of the cam portion. Item 4. A mating mortar pair type mill.

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