TW201801899A - Stamping device and rotational stamping disc comprises an upper wheel, upper stamping rollers, a lower wheel, lower part stamping rollers without giving a loading weight overturning the pestle - Google Patents

Abstract

A pestle is not applied with a loading weight in a direction of overturning the pestle. A stamping device (100), which conducts stamping at a stamping position (P) with plural upper pestles (40) and plural lower pestles (50) that sequentially pass through the stamping position (P), comprises: an upper wheel (101), which is arranged at an upper side of the stamping position (P) for rotation about a center axis; plural upper stamping rollers (102), which are mounted on the upper wheel (101) in a manner of being arranged in a circumferential direction around the center axis of upper wheel (101) and press against head parts of upper ends (43) of upper pestles (40); a lower wheel (106), which is arranged at a lower side of the stamping position (P) to rotate about a center axis; and plural lower stamping rollers (107), which are mounted to the lower wheel (106) in a manner of being arranged in circumferential direction around the center axis of lower wheel (106) and press against head parts of lower ends of lower pestles (50).

Description

Stamping device and rotary stamping plate

The present invention relates to a punching device for pressing powder sandwiched between an upper and lower pestle through the upper and lower punches, and a rotary punching disk used in the punching device.

The symbols used in Patent Document 1 are enclosed in parentheses, and the technology described in Patent Document 1 will be described. Patent Document 1 discloses a powder compression molding apparatus (A) that uses a mortar (4), an upper pestle (5), and a lower pestle (6) to compress a powder to thereby solidify it. There are a plurality of mortars (4), upper pestle (5) and lower pestle (6). A plurality of mortars (4), upper pestle (5) and lower are assembled on a rotating disk (3) that rotates around a vertical axis. Pestle (6). Specifically, on the outer peripheral portion of the upper portion (31) of the rotary disk (3), a plurality of upper pestles (5) are arranged and arranged at equal intervals in the circumferential direction, so that the upper pestles (5) can be individually arranged. Lifting. In addition, the same is true of the upper pestle (5), and a plurality of lower pestle (6) that can be raised and lowered are arranged at equal intervals in the circumferential direction, and are mounted on the lower portion (32) of the rotating disk (3). In addition, the mortars (4) are arranged at equal intervals in the circumferential direction, and are mounted on the middle portion (33) in the height direction of the rotary disk (3). Around the rotating disc (3) A powder supply device (7) and a pair of upper and lower pressure rollers (84, 85) are arranged around the periphery. During the rotation of the rotary disk (3), when the mortar (3) passes through the powder supply device (7), the powder is supplied to the mortar (3) by the powder supply device (7), and thereafter, the mortar (3) is fed. When the upper pestle (5) and the lower pestle (6) pass between a pair of pressure rollers (84, 85), the upper pestle (5) and the lower pestle (6) are sandwiched between a pair of pressure rollers (84, 85), the powder in the mortar (4) is compressed by the upper pestle (5) and the lower pestle (6).

The pressure rollers (84, 85) are provided to be rotatable around a horizontal central axis, respectively, and the intervals of the pressure rollers (84, 85) are kept constant. Then, the upper pestle (5) is crimped to the upper pressure roller (84), the lower pestle (6) is crimped to the lower pressure roller (85), and the pressure rollers (84, 85) are Rotate following the movement of the upper pestle (5) and the lower pestle (6).

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Gazette No. 5485501 (JP 5448501 B)

Here, FIG. 13 shows the action of the head of the upper pestle and the pressure roller on the upper side when the upper pestle and the lower pestle pass between a pair of pressure rollers. As shown in FIG. 13, the upper pestle 200 moves from left to right in the figure, and the pressure roller 202 is a revolver around the counter in the figure. Before the upper pestle 200 reaches the lowermost portion 203 on the outer peripheral surface of the pressure roller 202 (see arrow T), the upper pestle 200 contacts the position shifted from the lowermost portion 203 among the outer peripheral surfaces of the pressure roller 202. Then, the pressure roller 202 rotates in response to the movement of the upper pestle 200.

Therefore, when the upper pestle 200 is crimped to the pressure roller 202, a load in the lateral direction acts on the upper pestle 200 by friction between the upper pestle 200 and the pressure roller 202. The aforementioned load places a burden on the device and adversely affects the solidification of the powder.

Similarly, before the lower pestle reaches the lowermost part of the outer peripheral surface of the lower pressure roller, the lower pestle comes into contact with the lower pressure roller, and the lower pressure roller rotates in response to the movement of the lower pestle. A lateral load is applied to the lower pestle.

The present invention has been made in view of the above-mentioned matters. The problem to be solved by the present invention is that no lateral load is applied to the pestle.

In order to solve the above problems, the pressing device sequentially presses a plurality of upper punches in a predetermined punching position and a plurality of lower punches positioned below the upper punch in order to punch at the punching position. The punching device includes: an upper wheel, The upper side of the punching position is provided to be rotatable; a plurality of upper crimping portions are arranged in a row along the circumferential direction of the upper wheel and are crimped to the head of the upper end of the upper pestle; A wheel is rotatably provided under the aforementioned punching position; and a plurality of lower crimping portions, It is arranged in a row along the circumferential direction of the lower wheel, and is crimped to the head of the lower end of the lower pestle.

Other features of the present invention will be made clear by description of the description and drawings described later.

According to the present invention, it is not necessary to apply a load to the pestle in the direction in which the pestle is poured.

1‧‧‧Compression molding device

10‧‧‧ travel guide

11‧‧‧ upper track

11a‧‧‧Straight line

11b‧‧‧Straight

11c‧‧‧Circle

11d‧‧‧arc

12‧‧‧ lower track

20‧‧‧ Spinning machine row

21‧‧‧ Spinning machine

22‧‧‧Traveling carriage

23‧‧‧Roller support plate

24‧‧‧Holding plate

24a‧‧‧Mounting hole

24b‧‧‧holding hole

25‧‧‧ travel roller

26‧‧‧ travel roller

27‧‧‧ travel roller

28‧‧‧ travel roller

30‧‧‧Mortar

31‧‧‧ Mortar

34‧‧‧Stop Bolt

40‧‧‧ Upper pestle

41‧‧‧Tobe

42‧‧‧ pestle top

43‧‧‧Head

50‧‧‧ Lower Pestle

51‧‧‧Tobe

52‧‧‧ pestle top

53‧‧‧Head

60‧‧‧Direction guidance mechanism

61‧‧‧axis

62‧‧‧ retainer

63‧‧‧ mobile body

64‧‧‧ Upper bracket

65‧‧‧ Lower bracket

66‧‧‧ Bracket

67‧‧‧ Upper telescopic tube

68‧‧‧ Lower telescopic tube

70‧‧‧Cam for spindle operation

71‧‧‧ Cam for upper pestle action

72‧‧‧ with plate cam

73‧‧‧Slit section

74‧‧‧ Cam for lower pestle action

75‧‧‧ with plate cam

76‧‧‧Slit section

77‧‧‧ Cam Follower

78‧‧‧ Cam Follower

80‧‧‧travel drive

81‧‧‧ Motor

82‧‧‧Sprocket

84‧‧‧Roller Chain

85‧‧‧ constant speed control road

90‧‧‧ powder supply device

100‧‧‧Rotary stamping device

101‧‧‧upper round

102‧‧‧Upper pressing roller (upper crimping part)

103‧‧‧rotation axis

104‧‧‧ coil spring (upper elastic member)

105‧‧‧ coil spring (upper elastic member)

106‧‧‧ lower round

107‧‧‧Lower stamping roller (lower crimping part)

108‧‧‧rotation axis

110‧‧‧Pressure actuator (pressurizer)

111‧‧‧ plunger

114‧‧‧ Displacement Sensor

115‧‧‧ connecting member

116‧‧‧Right end of connecting member

117‧‧‧ the left end of the connecting member

120‧‧‧ Rotary Drive

121‧‧‧ Motor

122‧‧‧The first transmission mechanism

122a‧‧‧Gear

122b‧‧‧Gear

122c‧‧‧pulley

122d‧‧‧ timing belt

122e‧‧‧secondary pulley

122f‧‧‧ timing belt

122g‧‧‧secondary pulley

122h‧‧‧ timing belt

122i‧‧‧pulley

123‧‧‧Second transmission mechanism

123a‧‧‧pulley

123b‧‧‧ timing belt

123c‧‧‧secondary pulley

123d‧‧‧ timing belt

123f‧‧‧secondary belt pulley

123g‧‧‧ timing belt

123i‧‧‧pulley

124‧‧‧ fixed speed control circuit

FIG. 1 is a perspective view of a compression molding apparatus.

FIG. 2 is a plan view of a compression molding apparatus.

Fig. 3 is a perspective view of a row of spindles.

Fig. 4 is a perspective view of a spindle mill.

Fig. 5 is a perspective view of a spindle mill.

Fig. 6 is a right side view of the spindle mill.

Fig. 7 is a plan view of a spindle mill.

Fig. 8 is a partial cross-sectional view of a spindle mill.

Fig. 9 is a front view of a rotary punching device.

Fig. 10 is a plan view of a rotary press device.

FIG. 11 is a diagram showing the operation of the head of the upper pestle and the upper pressing roller in contact with the head.

FIG. 12 is a plan view of a part of a row of spindles and a lead screw. FIG.

FIG. 13 is a diagram showing the operation of a conventional upper pestle and a pressure roller in contact therewith.

At least the following matters can be understood from the description of the manual and the drawings described later.

It can be known that a punching device sequentially punches a plurality of upper punches in a predetermined punching position and a plurality of lower punches located on the lower side of the upper punches in sequence. The upper side of the punching position is provided to be rotatable; a plurality of upper crimping portions are arranged in a row along the circumferential direction of the upper wheel and are crimped to the head of the upper end of the upper pestle; The lower side of the punching position is provided to be rotatable; and a plurality of lower crimping portions are arranged in a row along the circumferential direction of the lower wheel and are crimped to the head of the lower end of the lower pestle. .

In addition, it is known that a rotary stamping disk includes a rotatable wheel and a crimping portion which is attached to the wheel at a position offset from a central axis of the wheel and is crimped to a pestle The top beats the head of the powdered pestle.

According to the above-mentioned punching device and rotary punching plate, when the upper wheel and the lower wheel rotate, the upper crimping portion and the lower crimping portion rotate, and the upper crimping portion and the lower crimping portion draw a circular trajectory. Therefore, immediately before the upper punch passes the punching position and the upper crimping portion passes the lowermost portion, the upper crimping portion gradually approaches the head of the upper punch downward, and moves in a lateral direction in cooperation with the movement of the head of the upper punch. Therefore, the upper crimping part Directly above his head to touch the head of the upper pestle. Therefore, no lateral load is applied to the upper pestle.

Similarly, since the lower crimping part contacts the head of the lower pestle from just below the head of the lower pestle, no lateral load is applied to the lower pestle.

Preferably, in the press device, the upper crimping portion may be rotatably mounted on the upper wheel about an axis parallel to a central axis of the upper wheel, and the lower crimping portion may be mounted on the upper wheel. The center axis of the lower wheel is rotatably attached to the lower wheel as a parallel axis. More preferably, the upper crimping portion has an outer peripheral surface formed in a cylindrical surface around its axis, and the lower crimping portion has an outer peripheral surface in a cylindrical surface around its axis.

Preferably, in the rotary stamping plate, the crimping portion is rotatably mounted on the wheel about an axis parallel to a central axis of the wheel. More preferably, the crimping portion has an outer peripheral surface formed in a cylindrical surface shape around its axis.

According to the punching device and the rotary punching disk as described above, when the upper punch passes through the punching position, the upper crimping portion crimped to the head of the upper punch is rotated, thereby causing the upper crimping portion and the head of the upper punch to rotate. No slippage will occur between them. Therefore, no load is applied to the upper pestle in the direction in which the upper pestle is poured. The same applies to the lower pestle and the lower crimping portion.

Preferably, the press device further includes an upper elastic member and a lower elastic member, the upper crimping portion is mounted on the upper wheel so as to be movable in parallel with respect to a central axis of the upper wheel, and the upper elastic member The upper crimping portion is held against the movement of the upper crimping portion, and the lower crimping portion is movable relative to the lower wheel. The central axis of the lower part is mounted on the lower wheel so as to move in a parallel direction, and the lower elastic member holds the lower crimp part against the movement of the lower crimp part.

According to the punching device described above, when the trajectory when the upper and lower punches pass through the punching position is a curve, the upper crimping portion crimped to the head of the upper punch moves in the axial direction, thereby making the upper presser There is no sliding between the joint and the head of the upper pestle. Therefore, no load is applied to the upper pestle in the direction in which the upper pestle is poured. The same applies to the lower pestle and the lower crimping portion.

In addition, after the upper crimping portion is moved in the axial direction, the upper crimping portion is returned to the original position by the elastic force of the upper elastic member. The same applies to the lower crimping portion.

Preferably, in the aforementioned punching device, a circumferential distance between the upper crimping portions adjacent to each other is equal to a distance between the upper punches, and a circumferential distance between the lower crimping portions adjacent to each other is equal to the distance between the lower punches. The intervals next to each other are equal.

According to the above-mentioned punching device, the upper crimping portion contacts the head of the upper pestle directly above the head of the upper pestle, and the movement of the upper crimping portion can be matched with the movement of the upper pestle. The lower crimping part will contact the head of the lower pestle directly from the head of the lower pestle, so that the movement of the lower pestle crimping part can cooperate with the movement of the upper pestle. Therefore, it is possible to effectively suppress the occurrence of a load in the direction in which the upper and lower pestles are poured.

Preferably, the press device further includes a rotary drive that rotationally drives the upper wheel and the lower wheel.

More preferably, it is synchronized with the timing when the upper punch passes the punching position, Rotating and driving the upper wheel with the rotary drive, so that the upper crimping portion passes the punching position, synchronizes with the timing of the lower punch passing the punching position, and rotationally drives the lower wheel with the rotary drive. To pass the lower crimping portion through the punching position.

More preferably, the upper wheel is rotationally driven by the rotary drive so that the peripheral speed of the upper crimping portion around the central axis of the upper wheel is equal to the moving speed of the upper pestle, and the rotary drive is used to The lower wheel is rotationally driven such that the peripheral speed of the lower crimping portion around the central axis of the lower wheel is equal to the moving speed of the lower pestle.

According to the above-mentioned punching device, the upper crimping portion contacts the head of the upper pestle directly above the head of the upper pestle, and the movement of the upper crimping portion can be matched with the movement of the upper pestle. The lower crimping portion will contact the head of the lower pestle from directly below the head of the lower pestle, so that the action of the lower crimping portion can cooperate with the movement of the lower pestle. Therefore, it is possible to effectively suppress the occurrence of a load in the direction in which the upper and lower pestles are poured.

Preferably, the press device further includes a pressurizing device, and applies a load in a direction in which the upper wheel and the lower wheel are approached to at least one of the upper wheel and the lower wheel.

More preferably, the press machine applies a constant load to at least one of the upper wheel and the lower wheel.

According to the press device as described above, an appropriate pressure can be applied to the powder to solidify the powder.

[Embodiment]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are variously technically preferable in order to implement the present invention, and the scope of the present invention is not limited to the following embodiments and illustrated examples.

1. Outline of compression molding equipment

FIG. 1 is a perspective view of a compression molding apparatus 1. FIG. 2 is a plan view of the compression molding apparatus 1. FIG. 3 is a perspective view of the row 20 of spindles.

As shown in FIGS. 1 and 2, the compression molding apparatus 1 includes a travel guide 10, a spindle train 20, a spindle driving cam 70, a travel drive device 80, a powder supply device 90, and a rotary press device 100. Wait.

The travel guide 10 is a closed path. The traveling rail 10 includes an upper rail 11 and a lower rail 12 which are formed into a oblong shape in a closed curve. The upper rails 11 and the lower rails 12 are arranged horizontally and spaced parallel to each other with a space above and below. Here, the so-called oblate shape refers to an ellipse or a shape close to it. An oblong, rounded rectangle, or oval shape other than an ellipse is also an oblong shape. Rounded rectangle refers to those whose corners form an arc. The upper rail 11 is in the shape of a rounded rectangle, in particular, the entire short side portion has an arc shape. That is, the upper rail 11 is composed of two straight portions 11a and 11b of equal length and parallel to each other; and a semi-circular arc connected between one end of the straight portions 11a and 11b. Part 11c; the other semicircular arc part 11d connected between the other ends of the linear parts 11a and 11b. The lower rail 12 is also the same as the upper rail 11.

As shown in FIG. 3, the spindle machine 20 has a plurality of modularized spindle machines 21. The spindle machines 21 are arranged at regular intervals along the traveling guide rails 10, thereby constituting the spindle machines 20. These spindles 21 are arranged across the entire circumference of the traveling rail 10, but in FIG. 1 and FIG. 2, only a part of the spindle 21 is shown in order to easily see the traveling rail 10 and the spindle-action cam 70. In addition, in FIG. 2, illustration of the travel drive device 80 is omitted.

As shown in FIG. 1, the beaters 21 are supported on the traveling guide 10 and guided along the traveling guide 10. The driving device 80 for traveling is used to apply power to the chipping machine 21 and, when viewed from above, drives the chipping machine 21 in a counterclockwise direction (see arrow A in FIG. 2). As a result, the beater 21 is looped along the travel guide 10. The cam 70 for spindle operation is a person who performs the spindle operation on the spindle 21 with the advance of the spindle 21. The powder supply device 90 provided at a predetermined position (particularly, the side portion of the straight portion 11b of the upper rail 11) on the traveling path of the tabletting machine 21 is to sequentially supply a plurality of tableting machines 21 (in particular, described later) The mortar hole 31) of the mortar 30 is supplied with powder. The rotary press device 100 provided at a predetermined position on the path of the beater 21 (especially, the side portion of the straight portion 11b of the upper rail 11) presses the powder beaten by the beater 21 to make the powder. Solidification. Formed from compressed powder into lozenges. Since the plurality of beaters 21 pass through the punching device 100 in sequence, the powder supplied to the beater 21 is sequentially punched by the punching device 100.

A plurality of powder supply devices 90 are provided, and the powder supply devices 90 are arranged along the straight portion 11b of the upper rail 11 and The powder supply device 90 may supply different powders to the tableting machine 21. In addition, the segment transfer device is in parallel with the powder supply device 90, and the segments (such as IC chips, active components, electronic components, and solid components) supplied to the segment transfer device are transferred by the segment. The device may be transferred to the tableting machine 21 (especially, the mortar hole 31 of the mortar 30 described later).

2. The structure of the spindle machine

Referring to FIG. 4 to FIG. 8, the beater 21 will be described in detail. FIG. 4 is a perspective view showing the doffer 21 as viewed from the front side, the upper side, and the right side. FIG. 5 is a perspective view showing the doffer 21 as viewed from the rear, upper, and left sides. FIG. 6 is a right side view of the spindle mill 21. FIG. 7 is a plan view of the spindle mill 21. FIG. 8 is a cross-sectional view showing a part of the spindle mill 21 taken along the line VIII-VIII shown in FIG. 7. In addition, the front face of the tapping machine 21 indicates a surface facing the outside of the traveling rail 10, and the rear face of the tapping machine 21 indicates a surface facing the inside of the traveling guide 10.

The chipping machine 21 is provided with a traveling carriage 22, a mortar 30, an upper pestle 40, a lower pestle 50, a linear motion guide mechanism 60, brackets 64 to 66, cam followers 77, 78, and the like.

The traveling carriage 22 is arranged in a horizontal T shape when viewed from the left or right. That is, the traveling carriage 22 includes a rectangular plate-shaped roller support plate 23 and a holding plate 24. The roller support plate 23 is supported on the traveling rail 10 in a standing state, and the holding plate 24 extends from the front surface of the roller support plate 23. The middle part in the height direction extends forward.

Behind the roller support plate 23, the two wheels are advanced respectively. The rollers 25 to 28 are provided to be rotatable. The rotation shafts of the traveling rollers 25 to 28 extend from the rear of the roller support plate 23 to the rear. The traveling rollers 25 to 28 are arranged in four sections.

The roller support plate 23 is disposed outside the rails 11 and 12 (see FIGS. 1, 2 and 6, etc.), and the holding plate 24 extends outward from the rails 11 and 12. Then, the traveling roller 25 and the traveling roller 26 sandwich the upper rail 11 therebetween, and support the traveling carriage 22 on the upper rail 11. Similarly, the traveling carriage 22 is supported on the lower rail 12 by the traveling rollers 27 and 28. The traveling rollers 25 and 26 are rotated relative to the upper rail 11, and the traveling rollers 27 and 28 are rotated relative to the lower rail 12, so that the traveling carriage 22 is along the rails 11 and 12 on the outside of the rails 11 and 12. 12 to march. The traveling rollers 25 to 28 make the traveling of the traveling carriage 22 smooth and stable.

A mortar 30 is provided at a front end portion of the holding plate 24. Specifically, the mounting hole 24 a is provided to penetrate the front end portion of the holding plate 24 up and down, insert the mortar 30 into the mounting hole 24 a, and fix the mortar 30 to the holding plate 24 by a stop bolt 34. The stopper bolt 34 is locked from the front end surface of the holding plate 24 toward the mounting hole 24 a, and the front end of the stopper bolt 34 is pushed to the outer peripheral surface of the mortar 30. A mortar hole 31 is formed in the mortar 30. The acetabular hole 31 is connected to the acetabular 30 through the up and down.

An upper pestle 40 is arranged on the upper side of the mortar 30, and a lower pestle 50 is arranged on the lower side of the mortar 30. The upper pestle 40, the lower pestle 50, and the mortar hole 31 are arranged concentrically.

The upper pestle 40 includes a crotch 41, a pestle top 42, and a head 43. The crotch portion 41 is a main body portion of the upper pestle 40. The crotch portion 41 is provided in a columnar shape, and the axis of the crotch portion 41 extends in the vertical direction. The pestle top 42 is provided at the lower end of the crotch 41, and the head 43 is provided at the upper end of the crotch 41. The pestle top 42 is formed in a column shape thinner than the crotch part 41, and the axis of the pestle top 42 extends in the up-down direction. The head portion 43 is formed in a disc shape having a longer diameter than the crotch portion 41. The top surface of the head portion 43 is formed flat and orthogonal to the axes of the upper pestle 40 and the crotch portion 41.

The lower pestle 50 has a crotch portion 51, a pestle top 52, and a head portion 53, and has a structure that is vertically symmetrical with the upper pestle 40. That is, the axis of the columnar crotch 51 extends upward and downward, and a columnar pestle top 52 that is thinner than the crotch 51 is provided at the upper end of the crotch 51, and the head 53 is longer than the crotch 51. It is provided at the lower end of the crotch 51.

The upper pestle 40 and the lower pestle 50 are assembled to the traveling carriage 22 by a linear motion guide mechanism 60 so as to be vertically movable. The direct motion guide mechanism 60 individually guides the upper pestle 40 and the lower pestle 50. The direct motion guide mechanism 60 guides the upper and lower directions of the upper pestle 40 and the lower motion 50 by the direct motion guide mechanism 60. The guidance in the up and down directions is independent. When the upper pestle 40 is guided downward by the linear guide mechanism 60, the top 42 of the upper pestle 40 is inserted into the mortar hole 31. When the lower pestle 50 is guided upward by the linear guide mechanism 60, The pestle top 52 of the lower pestle 50 is inserted into the mortar hole 31.

The linear guide mechanism 60 is a ball spline guide mechanism. The linear motion guide mechanism 60 includes a shaft 61, a holding body 62, a moving body 63, a plurality of balls, and the like. The shaft 61 is a spline shaft, and a plurality of parallel grooves are formed on the outer peripheral surface of the shaft 61 with respect to the axis of the shaft 61. Guarantee The holding body 62 and the moving body 63 are provided in a cylindrical shape, and the shaft 61 is inserted into the holding body 62 and the moving body 63 so that the radial load of the shaft 61 is received by the holding body 62 and the moving body 63. A plurality of balls are rotatably held on the inner peripheral surface of the holding body 62. These balls are received in grooves on the outer peripheral surface of the shaft 61, and the load in the circumferential direction of the shaft 61 is received by the ball holding body 62. Similarly, the moving body 63 is assembled to the shaft 61 with a plurality of balls interposed between the outer peripheral surface of the shaft 61 and the inner peripheral surface of the moving body 63. Therefore, the moving body 63 and the holding body 62 can relatively move linearly in the axial direction with respect to the shaft 61, but the rotation system of the moving body 63 and the holding body 62 is restricted by the shaft 61 and the ball.

The linear motion guide mechanism 60 as described above is assembled to the traveling carriage 22. Specifically, the holding hole 24 b is provided so as to penetrate the middle portion of the holding plate 24 up and down, insert the holding body 62 into the holding hole 24 b, and fix the holding body 62 to the holding plate 24. In a state where the linear guide mechanism 60 is assembled to the traveling carriage 22, the shaft 61 penetrates the holding plate 24 in the vertical direction, and the moving body 63 is arranged below the holding plate 24. Then, the shaft 61 and the moving body 63 can relatively move up and down with respect to the holding plate 24.

An upper bracket 64 is assembled to the upper end portion of the shaft 61, and the upper bracket 64 extends forward from the upper end portion of the shaft 61. The upper bracket 64 and the shaft 61 are fixed by screws or the like.

An upper pestle 40 is assembled to a front end portion of the upper bracket 64. Specifically, the crotch portion 41 of the upper pestle 40 penetrates the front end portion of the upper bracket 64 up and down, so that the upper bracket 64 sandwiches the crotch portion of the upper pestle 40 from the left and right. 41, the head 43 of the upper pestle 40 abuts on the upper bracket 64, so that the pestle top 42 of the upper pestle 40 protrudes downward from the upper bracket 64, and in this state, the crotch 41 is screwed Etched to the upper bracket 64. Therefore, the upper pestle 40, the upper bracket 64, and the shaft 61 are integrated to move up and down.

A lower bracket 65 is assembled to the moving body 63, and the lower bracket 65 extends forward from the moving body 63. The lower bracket 65 and the moving body 63 are fixed by screws or the like.

At the upper side than the holding plate 24, the shaft 61 is inserted into the bellows-shaped upper telescopic tube (upper shield) 67, thereby partially covering the shaft 61 with the upper telescopic tube 67. The upper end of the upper telescopic tube 67 is connected to the upper bracket 64, and the lower end of the upper telescopic tube 67 is connected to the holding body 62 or the holding plate 24. As the upper bracket 64 is raised and lowered, the upper telescopic tube 67 is extended and contracted. By protecting the shaft 61 with the upper telescopic tube 67, it is possible to prevent dust, powder, and the like from entering the gap between the shaft 61 and the holding body 62 and the like.

At a lower side than the holding plate 24, the shaft 61 is inserted into a bellows-shaped lower telescopic tube (lower shield) 68, thereby partially covering the shaft 61 with the lower telescopic tube 68. The upper end of the lower telescopic tube 68 is connected to the holding body 62 or the holding plate 24, and the lower end of the lower telescopic tube 68 is connected to the moving body 63 or the lower bracket 65. As the lower bracket 65 is raised and lowered, the lower telescopic tube 68 is extended and contracted. The lower telescopic tube 68 prevents entry of dust, powder, and the like.

A lower pestle 50 is assembled to a front end portion of the lower bracket 65. Specifically, the crotch portion 51 of the lower pestle 50 penetrates the front end portion of the lower bracket 65 up and down, and the lower bracket 64 sandwiches the crotch portion of the lower pestle 50 from left and right. 51. The head 53 of the lower pestle 50 is abutted to the lower surface of the lower bracket 65, and the pestle top 52 of the lower pestle 50 is protruded upward from the lower bracket 65. In this state, the crotch 51 is closed by screws or the like.于 Lower bracket 65. Therefore, the lower pestle 50, the lower bracket 65, and the moving body 65 are integrated to move up and down.

A bracket 66 is fixed to a lower end portion of the shaft 61. A cam follower 77 is mounted on the rear surface of the bracket 66. A cam follower 78 is also mounted on the rear surface of the lower bracket 65. The cam followers 77 and 78 are raised and lowered by the cam 70 for spindle operation.

Further, a bellows-shaped telescopic tube (shield) may be provided between the bracket 66 and the lower bracket 65, and the shaft 61 is inserted into the telescopic tube, and the upper end of the telescopic tube is connected to the lower bracket 65 or a moving body. 63, to connect the lower end of the telescopic tube to the bracket 66. The cam follower 77 may be provided behind the upper bracket 64.

3. Power of Spinning Machine

Next, the travel drive device 80 will be described in detail with reference to FIG. 2.

The traveling drive device 80 transmits power to the traveling carriage 22 of the spindle driver 21 to move the traveling carriage 22. The travel drive device 80 is a chain drive device including a motor 81, a drive sprocket 82, a driven sprocket 83, a roller chain 84, and the like. The output shaft of the motor 81 is connected to the drive sprocket 82. The driving sprocket 82 is disposed inside a semicircular portion on one side of the traveling rail 10, and the driven sprocket 83 is disposed inside the semicircular portion on the other side of the traveling rail 10. The roller chain 84 is provided in a loop shape (closed curve shape), It is connected between the driving sprocket 82 and the driven sprocket 83. As shown in FIGS. 4 to 8, the rear surface of the roller support plate 23 of the traveling carriage 22 is connected to the roller chain 84, and the traveling carriages 22 are connected by the roller chain 84. The roller chain 84 is wound by the motor 81, and the power train of the motor 81 is transmitted to the traveling carriage 22 through the roller chain 84, thereby traveling the traveling carriage 22. The motor 81 is controlled at a constant speed by a constant speed control circuit 85, thereby causing the traveling carriage 22 to travel at a constant speed. In addition, instead of the roller chain 84, a loop-shaped belt may be used, and instead of the sprocket 82, 83, a pulley may be used, thereby making the traveling drive device 80 a belt drive device.

Next, the cam 70 for spindle driving will be described in detail with reference to FIG. 1.

The cam 70 for chipping operation is a motor that converts the power during the driving of the chipping machine 21 into the lifting motion of the upper and lower punches 40 and 50. The spindle driving cam 70 includes an upper punch operating cam 71 and a lower punch operating cam 74.

The upper pestle operation cam 71 includes a pair of upper and lower belt cams 72 and a slit portion 73. A pair of plate cams 72 are arranged in parallel with each other along the traveling guide 10 in the circumferential direction, and are spaced apart from each other vertically. A slit portion 73 is formed between the plate cams 72. The cam follower 77 is inserted into the slit portion 73 and is sandwiched between the upper and lower belt cams 72. The position of the slit portion 73 in the up-down direction is not necessarily set, but the position in the up-down direction is set in accordance with the position in the circumferential direction. Therefore, the cam follower 77 slides in the circumferential direction along the strip cam 72 to be displaced in the vertical direction. Then, the upper pestle 40 is raised and lowered along with the winding of the spindle driver 21.

The lower pestle action cam 74 also has a pair of upper and lower belt cams 75 and a slit portion 76. The cam follower portion 78 inserted into the slit portion 76 slides along the belt cam 75 in the circumferential direction, thereby displacing in the vertical direction. . Then, the lower pestle 50 is raised and lowered along with the winding of the beater 21.

The strip plate cam 72 of the upper punching cam 71 is not looped, but is interrupted at the punching position P (see FIGS. 1 and 9) of the rotary punching device 100. In this portion, the cam follower 77 is not stripped. Supported by the cam 72. Similarly, the plate cam 75 of the lower punch operation cam 74 is also interrupted at the punching position P of the rotary punching device 100. Here, the punching position P refers to a portion between the center axis of the upper wheel 101 and the center axis of the lower wheel 106 described later.

4. Structure of rotary punching device

Next, the rotary press device 100 will be described in detail with reference to FIGS. 1, 9 and 10. Here, FIG. 9 is a front view of the rotary press device 100, and FIG. 10 is a plan view of the rotary press device 100.

The rotary punching device 100 sequentially punches the upper and lower punches 40 and 50 of the plurality of punching machines 21 of the punching position P in this order. The rotary press device 100 includes a frame (not shown), a pair of upper wheels 101, a plurality of upper press rollers (upper crimping portions) 102, a pair of lower wheels 106, and a plurality of lower press rollers. (Lower crimping portion) 107, a pressure actuator 110, a rotary driver 120, and the like.

A pair of upper wheels 101 are arranged on the upper side of the movement track of the upper pestle 40 along the straight portion 11 b of the upper rail 11.上 上 The upper part The wheels 101 are spaced apart from each other and arranged in a coaxial shape. Then, the upper wheel 101 is attached to the frame of the rotary press device 100 and is provided to be rotatable about a central axis extending in the front-rear direction. Further, the center portions of the pair of upper wheels 101 are fixed to the roller 102a (see FIG. 1) sandwiched therebetween.

A pair of lower wheels 106 are arranged below the upper wheels 101. The lower wheels 106 are arranged below the movement track of the lower pestle 50 along the straight portion 11 b of the upper rail 11. The lower wheels 106 are spaced apart from each other and spaced in opposite directions, and are arranged coaxially. Then, the lower wheel 106 is rotatably mounted on the middle portion of the connecting member 115 extending in the left-right direction in FIGS. 9 and 10. The central axis of the lower wheel 106 is parallel to the central axis of the upper wheel 101. In addition, the center portions of the pair of lower wheels 106 are fixed to the rollers 106 a (see FIG. 1) sandwiched therebetween.

The right end portion 116 of the connection member 115 is rotatably attached to the frame of the rotary press apparatus 100, and the connection member 115 swings up and down with the right end portion 116 as a fulcrum. The left end portion 117 of the connection member 115 is connected to the plunger 111 of the pressure actuator 110. The pressure actuator 110 is a direct-acting drive source such as a hydraulic cylinder, a pneumatic cylinder, or a solenoid valve. The pressurizing actuator 110 is mounted on a frame. Therefore, the pressurizing actuator 110 moves the plunger 111 upward and upward to push up the lower wheel 106, so that an upward load is applied to the connecting member 115 and the lower wheel 106. The driving method of the pressure actuator 110 is a load control method, and the pressure actuator 110 is controlled to make the load of the pressure actuator 110 constant. In addition, with the load of the pressure actuator 110 It is heavy, and a reaction force is generated from the lower wheel 106 to the pressurizing actuator 110. When the reaction force reaches a certain level or more, the plunger 111 moves backward. Therefore, the load of the pressure actuator 110 does not become more than a certain level.

In addition, the same way as the upward load is applied to the lower wheel 106 by the pressurizing actuator 110 and the connection member 115 may be applied, and the downward load may be applied to the upper wheel 101 by the pressurizing actuator and the connection member. . In addition, when a downward load is applied to the upper wheel 101, the pressurizing actuator 110 and the connecting member 115 may be omitted, and the lower wheel 106 may be rotatably mounted on the frame of the rotary press device 100.

The displacement in the up-down direction of the plunger 111 is detected by the displacement sensor 114, and the displacement sensor 114 outputs an output signal indicating the detection of displacement. The output signal of the displacement sensor 114 is controlled by feedback from the powder supply device 90. That is, the feedback control circuit inputs the output signal of the displacement sensor 114 and controls the powder supply device 90 to enable the powder supply of the powder supply device 90 based on the output signal when the punch 21 passes the punching position P. The amount is maintained at a certain target value.

The upper wheel 101 and the lower wheel 106 are rotationally driven by a rotary driving machine 120 mounted on the chassis. The rotary drive 120 includes a motor 121, a first transmission mechanism 122 that transmits power of the motor 121 to the upper wheel 101 to rotate the upper wheel 101, and transmits power of the motor 121 to the lower wheel 106 to rotate the lower wheel 106.的 第二 Transmission 机构 123. The first transmission mechanism 122 is a combination of a gear train and a belt transmission mechanism. The second transmission mechanism 123 is a belt transmission mechanism. Motor 121 loan The constant speed control is performed by the constant speed control circuit 124.

Here, the first transmission mechanism 122 includes a gear 122a, a gear 122b, a pulley 122c, a timing belt 122d, a second-stage pulley 122e, a timing belt 122f, a second-stage pulley 122g, a timing belt 122h, and a pulley 122i. The gear 122 a is directly connected to the output shaft of the motor 121. A gear 122b is engaged with the gear 122a. A timing belt 122d is bridged between a pulley 122c provided coaxially with the gear 122b and a large pulley of the second-stage pulley 122e. Between the small pulley of the second-stage pulley 122e and the large pulley of the second-stage pulley 122g, a timing belt 122f is bridged. Between the pulley 122i provided coaxially with the upper pulley 101 and the small pulley of the second-stage pulley 122g, a timing belt 122h is bridged.

The second transmission mechanism 123 includes a pulley 123a, a timing belt 123b, a second-stage pulley 123c, a timing belt 123d, a second-stage pulley 123f, a timing belt 123g, and a pulley 123i. The pulley 123a is directly connected to the output shaft of the motor 121. A timing belt 123b is bridged between the pulley 123a and the large pulley of the second-stage pulley 123c. A timing belt 123d is bridged between the small pulley of the second-stage pulley 123c and the large pulley of the second-stage pulley 123f. Between the small pulley of the second-stage pulley 123f and the pulley 123i, a timing belt 123g is bridged. The pulley 123i is arranged coaxially with the lower pulley 106. The pulley 123f is rotatably attached to the right end portion 116 of the connection member 115.

Further, the drive sources for rotationally driving the upper wheel 101 and the lower wheel 106 may be individually provided. In addition, the driving source of the rotary driving machine 120 and the driving source of the traveling driving device 80 may be shared, and the horse may be omitted. Any one of the motor 121 and the motor 81 is driven, and the upper wheel 101, the lower wheel 106, and the beater 21 are driven by the other.

Between a pair of upper wheels 101, a plurality of cylindrical upper pressing rollers (upper crimping portions) 102 are arranged at equal intervals along the circumferential direction around the central axis of the upper wheels 101 as a center. The upper punch rollers 102 are rotatably mounted on the upper wheel 101. Specifically, a plurality of rotation shafts 103 that are parallel to the center axis of the upper wheel 101 are fixed at both ends to a pair of upper wheels 101, and the rotation shafts 103 are respectively inserted into the upper stamping rollers 102 so that The radial load of the upper stamping roller 102 is received by the rotating shaft 103.

In addition, the outer peripheral surface of the upper press roller 102 is coaxial with the rotation shaft 103 to form a cylindrical surface, and a part of the outer peripheral surface thereof is exposed from the outer peripheral surface of the upper wheel 101 to the outside.

A coil spring (upper elastic member) 104 is interposed between one end surface of the upper punch roller 102 and one upper wheel 101, and between the other end surface of the upper punch roller 102 and the other upper wheel 101. A coil spring (upper elastic member) 105 is also clamped. A rotating shaft 103 is passed between the coil springs 104 and 105. The upper stamping roller 102 is held centrally between a pair of upper wheels 101 by the coil springs 104 and 105. The upper stamping roller 102 resists the elastic force of the coil springs 104 and 105 and can move along the rotation axis. 103 moves. Here, a plurality of upper press rollers 102, a rotating shaft 103, and coil springs 104 and 105 are assembled to a pair of upper wheels 101, and these are referred to as upper rotary press disks.

As described above, the plurality of upper stamping rollers 102 Each of the rotating shafts 103 is attached to the upper wheel 101, and similarly, a plurality of cylindrical lower press rollers (lower crimping portions) 107 are attached to the lower wheel 106 via the respective rotating shafts 108. A coil spring (lower elastic member), a lower press roller 107, and a coil spring (lower elastic member) are sandwiched between a pair of lower wheels 106. The peripheral pitch of the lower punch rollers 107 adjacent to each other is equal to the peripheral pitch of the upper punch rollers 102 adjacent to each other. A plurality of lower press rollers 107, a shaft 108, and a coil spring are assembled on a pair of lower wheels 106, and these are referred to as a lower rotary press disk.

The wheels 101 and 106 are rotationally driven by the rotation driving machine 120, so that the upper stamping roller 102 rotates around the central axis of the upper wheel 101 as the center, and the lower stamping roller 107 has the central axis of the lower wheel 106 as Center back and forth. The peripheral speeds of the press rollers 102 and 106 are set to be equal to each other.

In addition, the peripheral pitch of the upper punch roller 102 is equal to the interval between the upper punches 40 of the adjacent punching machine 21, and the peripheral pitch of the lower punch roller 107 is the same as the lower punch 50 of the adjacent punching machine 21. Are equally spaced. In addition, the peripheral speeds of the press rollers 102 and 107 are controlled by the constant speed control circuit 124 so as to be equal to the traveling speed of the spindle 21.

5. Operation of compression molding device

Next, the operation of the compression molding apparatus 1 will be described.

The motor 81 of the traveling drive device 80 is controlled at a constant speed by a constant speed control circuit 85. In this way, the beater 21 will travel along the upper track 11 and the lower track 12 and spin. Spinning in progress on the straight portion 11b The machine 21 passes through the powder supply device 90 and the rotary press device 100 in this order.

While the tablet mill 21 is traveling, the powder supply device 90 is caused to periodically perform a powder supply operation. Specifically, the tableting machine 21 is synchronized with the timing of passing through the powder supply device 90 so that the powder is supplied from above the mortar 30 to the mortar hole 31 by the powder supply device 90. The position where the powder is supplied by the powder supply device 90 is not in the arc portions 11c, 11d, but in the linear portion 11b. Therefore, it is possible to suppress the powder in the mortar hole 31 from being shifted by the centrifugal force.

The motor 121 of the rotary driving machine 120 is controlled at a constant speed by a constant speed control circuit 124. In this way, the upper wheel 101 and the lower wheel 106 are rotated, and the upper punch roller 102 and the lower punch roller 107 are rotated. The pressurizing actuator 110 applies an upward load to the lower wheel 106.

Here, the timing of passing the upper punching roller 102 during the rotation to the lowermost point, the timing of passing the uppermost point with the lower punching roller 107 during the rotation, and the upper and lower punches 40 and 50 of the running spindle 21 The timing is synchronized by the punch position P. When the upper pestle 40 and the lower pestle 50 of the beater 21 pass through the punching position P, the punches 40 and 50 of the beater 21 are sandwiched by the punching rollers 102 and 107 of the rotary punching device 100 to perform punching, and the powder Shaped into lozenges.

Hereinafter, the operation of the beater 21 will be described in detail while the beater 21 orbits along the tracks 11 and 12.

After the spindle mill 21 passes through the rotary punching device 100, it reaches the powder supply In the period up to the time of the feeding device 90, the cam follower 77 of the beater 21 is pushed up by the cam 71 for the upper pestle operation. Thereby, the upper pestle 40 rises, and the top 42 of the upper pestle 40 is detached upward from the mortar hole 31 of the mortar 30. The state in which the pestle top 42 of the upper pestle 40 is detached upward from the mortar hole 31 is held by the upper pestle action cam 71 until the beater 21 passes through the powder supply device 90.

On the other hand, the cam follower 78 of the beater 21 is pushed up by the lower pestle action cam 74 while the beater 21 reaches the powder supply device 90 after passing through the rotary press device 100, and then pulled down. . As a result, the lower punch 50 inserted into the mortar hole 31 of the mortar 30 is raised after the spindle punch 21 passes the rotary press device 100 and then descends. By raising the lower pestle 50, the pestle top 52 of the lower pestle 50 will penetrate upward from the mortar hole 31, or the front end surface of the pestle top 52 will be aligned with the upper end surface of the mortar 30, so the formed tablet will be lowered by the lower pestle. The pestle top 52 of 50 is pushed out from the mortar hole 31. Thereby, the lozenge can be recovered by a pickup device or the like. By lowering the lower pestle 50 after rising, the pestle top 52 of the lower pestle 50 retracts into the mortar hole 31, but does not come out from the mortar hole 31 downward. It should be noted that the raising operation of the lower pestle 50 described above is performed simultaneously with or delayed from the raising operation of the upper pestle 40.

After the pestle top 52 of the lower pestle 50 is retracted into the hole 31, the position of the lower pestle 50 is held by the lower punch 21 to the pressing position P of the rotary punching device 100, and is held by the lower pestle operating cam 74.

When the beater 21 passes through the powder supply device 90, powder is supplied to the mortar hole 31 by the powder supply device 90, and the powder is deposited on the front end surface of the top 52 of the lower pestle 50.

While the beater 21 passes through the powder supply device 90 and reaches the rotary punching device 100, the cam follower 77 of the beater 21 is pulled down by the cam 71 for up and down operation. Thereby, the upper pestle 40 is lowered, and the pestle top 42 of the upper pestle 40 is inserted into the mortar hole 31 of the mortar 30. In this way, the powder deposited on the pestle top 52 of the lower pestle 50 is beaten from above by the pestle top 42 of the upper pestle 40, and the powder is beaten from the bottom by the pestle top 52 of the lower pestle 50. The powder is then compressed in advance by the pestle tips 42, 52.

After the pestle top 42 of the upper pestle 40 is inserted into the hole 31, the position of the upper pestle 40 is held by the top punch 21 to the punching position P of the rotary punching device 100, and is held by the upper pestle operating cam 71.

After that, when the beater 21 passes the punching position P, the upper punching roller 102 passes the lowermost point and the lower punching roller 107 passes the uppermost point. At this time, the upper punch roller 102 is crimped to the head 43 of the upper punch 40, and the lower punch roller 107 is crimped to the head 53 of the lower punch 50, and is sandwiched between the upper punch 40 and the lower punch 50. The powder is compressed by the load of the pressure actuator 110. Thereby, the powder is solidified. When the beater 21 passes the punching position P, the cam follower 77 passes the interruption portion of the upper pestle action cam 71, and the cam follower 78 passes the interruption portion of the lower pestle action cam 74. Therefore, the load of the pressure actuator 110 does not act on the cams 71 and 74.

Referring to FIG. 11, the operation of the punching machine 21 when passing through the rotary press device 100 will be described in detail.

Immediately before the upper punching roller 102 reaches the lowest point, the outer peripheral surface of the upper punching roller 102 contacts the top surface of the head 43 of the upper pestle 40, and Immediately before the partial pressing roller 107 reaches the uppermost point, the outer peripheral surface of the lower pressing roller 107 contacts the top surface of the head 53 of the lower pestle 50 (see arrow T1 in FIG. 11). Thereby, the powder sandwiched between the pestle top 42 of the upper pestle 40 and the pestle top 52 of the lower pestle 50 starts to be pressed. Hereinafter, this timing is referred to as a pressure start timing.

Here, the peripheral speeds of the upper punch rollers 102 and 106 are equal to the traveling speed of the beater 21, so the upper punch roller 102 will be almost directly above the head 43 of the upper pestle 40 at the start timing of the pressurization. When the head 43 comes into contact, the lower stamping roller 107 will contact the head 53 almost directly below the head 53 of the lower pestle 50. Therefore, the horizontal load system hardly acts on the pestles 40 and 50. Thereby, unnecessary powder is not applied to the powder, and the powder is solidified well. In addition, no burden is placed on the compression molding apparatus 1.

In addition, at the timing of the start of pressurization, the upper press roller 102 is in contact with the head 43 of the upper pestle 40 at a position close to the lowest point. In addition, the lowermost portion or the vicinity of the outer peripheral surface of the upper punching roller 102 is in contact with the head 43 of the upper pestle 40, and is punched from the contact portion between the outer peripheral surface of the upper punching roller 102 and the head 43 of the upper pestle 40 to the upper portion. The surfaces connected to the central axis of the roller 102 are almost parallel to the vertical direction. Therefore, in the contact portion between the upper punch roller 102 and the upper punch 40, the component in the tangential direction is very small, and the lateral load hardly acts on the upper punch 40. Thereby, unnecessary powder is not applied to the powder, and the powder is solidified well.

Similarly, at the timing of the start of pressurization, the lower press roller 107 contacts the head 53 of the lower pestle 50 at a position near the uppermost point, and presses the roller from the lower part. The contact surface between the outer peripheral surface of the shaft 107 and the head 53 of the lower pestle 50 and the central axis of the lower punch roller 107 is almost parallel to the vertical direction. Therefore, a load in the lateral direction hardly acts on the lower pestle 50.

As described above, at the start timing of pressing, the upper punch roller 102 contacts the top surface of the head 53 almost directly above the head 43 of the upper punch 40, and the lower punch roller 107 contacts the head of the lower punch 50. The top surface of the head portion 53 is contacted directly below the portion 53, so the top surface of the head portions 43 and 53 can be a flat surface perpendicular to the axis of the upper and lower punches 40 and 50. If the top surfaces of the heads 43 and 53 are flat, even if a load is applied to the top surfaces of the heads 43 and 53 from the press rollers 102 and 107, a component in the tangential direction will hardly occur. Therefore, a load in the lateral direction hardly acts on the pestles 40 and 50.

After that, the upper punch roller 102 reaches the lowermost point, and the lower punch roller 107 reaches the uppermost point (see arrow T2 in FIG. 11). After that, the outer peripheral surface of the upper punch roller 102 is immediately separated from the top surface of the head 43 of the upper pestle 40, and the outer peripheral surface of the lower punch roller 107 is separated from the top surface of the head 53 of the lower pestle 50. (Refer to arrow T3 in FIG. 11). Thereby, the pressing of the powder is ended. Hereinafter, this timing is referred to as a pressure end timing.

During the period from the press start timing to the press end timing, a constant pressure is applied to the powder by the pestle 40 and 50 by the press actuator 110. This is because the load is controlled by controlling the pressure actuator 110.

The period from the start of pressurization to the end of pressurization Meanwhile, the upper press roller 102 moves in the circumferential direction around the axis of the upper wheel 101, and the upper pestle 40 moves downstream. Since the upper punching roller 102 is crimped to the head 43 of the upper punch 40, the head 43 of the upper punch 40 and the upper punching roller 102 are moved between the upper punching roller 102 and the upper punch 40. There may be a load in the tangential direction at the contact portion of. However, by rotating the upper punching roller 102 around the rotation shaft 103, the upper punching roller 102 and the head 43 of the upper pestle 40 are prevented from sliding, and the load in the tangential direction is released. Therefore, the lateral load does not act on the upper pestle 40, and the powder can be solidified well.

During the period from the start of the pressurization to the end of the pressurization, the lower press roller 107 moves in the circumferential direction, and the lower pestle 50 moves downstream. As in the case of the upper punch roller 102, the lower punch roller 107 is rotated about the rotation shaft 108 as a center, thereby preventing a lateral load from acting on the lower pestle 50.

6. Effects and advantages

The above embodiment has the following effects and advantages.

(1) The mortar 30, the upper pestle 40, the lower pestle 50, the linear motion guide mechanism 60, and the like are assembled on the traveling carriage 22 to make the chipping machine 21 modular. Therefore, the arrangement shape of the spindle machines 21 has a degree of freedom, and the trajectory of the spindle machines 21 is not restricted by the shape. This makes it possible to provide a compression molding apparatus 1 in which a plurality of spindles 21 are aligned along the oblong rails 11 and 12.

(2) The rails 11 and 12 can be formed into oblate shapes. Therefore, there is a linear portion on the rails 11 and 12, and powder can be arranged on the side of the linear portion. The supply device 90 and the rotary press device 100. In addition, it is possible to suppress the increase in the area of the area surrounded by the tracks 11 and 12 to a minimum while increasing the total length of the tracks 11 and 12. By lengthening the total length of the tracks 11 and 12, the powder supply device 90 or the rotary press device 100 can be aligned along the plurality of tracks 11 and 12. A device other than the powder supply device 90 or the rotary punching device 100 is disposed on the sides of the rails 11 and 12. The device can be used for various processes (for example, cleaning of the mortar 30, picking of tablets, supply of liquid to the mortar hole 31, or Solid, etc.).

(3) The mortar 30, the upper pestle 40, the lower pestle 50, and the linear motion guide mechanism 60 are assembled to the traveling carriage 22, so that the mortar 30, the upper pestle 40, and the lower pestle 50 can be set to a state of high coaxiality. The decrease in the coaxiality of the mortar 30, the upper pestle 40, and the lower pestle 50 can be suppressed by the advancement or operation of the spindle mill 21.

(4) The linear motion guide mechanism 60 is not provided directly above or immediately below the mortar hole 31, but is provided at a position staggered from the mortar hole 31 in the mortar 30 in the horizontal direction. Therefore, the lubricating oil of the linear motion guide mechanism 60 does not leak to the mortar hole 31.

(5) The direct motion guide mechanism 60 can be protected from dust or powder by the telescopic tubes 67, 68.

(6) The head 43 of the upper pestle 40 is clamped on the upper bracket 64, so that the upper pestle 40 can be positioned, and the upper punch roller 102 can be prevented from directly crimping the upper bracket 64. In addition, since the upper press roller 102 is directly crimped to the upper pestle 40, the powder can be appropriately pressed. The same applies to the lower pestle 50, the lower bracket 65, and the lower punch roller 107.

(7) Since it is tied to the side of the straight part of the tracks 11, 12 Since the powder supply device 90 and the rotary press device 100 are arranged, the powder of the powder supply device 90 can be satisfactorily supplied and the rotary press device 100 can be pressurized well.

(8) The head 43 of the upper pestle 40 is pressurized by the upper punching roller 102 almost from directly above, and the head 53 of the lower punch 50 is pressurized by the lower punching roller 107 almost directly from below, so the lateral load is almost Does not affect the pestle 40, 50.

(9) Even if the stamping rollers 102 and 107 are driven by the heads 43 and 53 of the pestle 40 and 50, the wheels 101 and 106 are rotationally driven by the rotary driving machine 120, so that the stamping rollers 102 and 102 can be driven. , 107 roundabout. Because the upper press rollers 102 and 107 rotate, the upper press roller 102 and the head 43 of the upper pestle 40 are moved in a pressure contact state from the press start timing to the press end timing, and from the press start timing to The lower press roller 107 and the head 53 of the lower pestle 50 are moved in a pressure contact state until the timing of the end of the press. Therefore, from the pressing start timing to the pressing end timing, the head 43 of the upper pestle 40 is pressed by the upper punch roller 102 almost directly from above, and the head 53 of the lower pestle 50 is punched by the lower portion almost from directly below. The roller 107 is pressurized.

(10) Since the pressure during the powder compression of the pressurizing actuator 110 is constant, a lozenge is formed well. In addition, the displacement sensor 114 detects the displacement in the up-down direction of the plunger 111, so that the compression state or amount of the powder in the mortar hole 31 can be monitored. In addition, since the displacement sensor 114 can also be compared with a load cell to detect correctly, the output signal of the displacement sensor 114 can be used for correct feedback control. system.

7. Example of change

As mentioned above, although this embodiment was described, the said embodiment is provided for easy understanding of this invention, and does not interpret and limit this invention. The present invention can be changed or improved without departing from the spirit thereof, and the present invention includes equivalents thereof. The following describes changes in the above embodiment. Each of the change points described below may be applied in combination.

In the above embodiment, as shown in FIG. 6, the holding body 62 is fixed to the holding plate 24 of the traveling carriage 22 so that the shaft 61 can be raised and lowered. In contrast, instead of providing the holding body 62, the shaft 61 may be fixed to the holding disk 24 by passing the shaft 61 through the holding disk 24 of the traveling carriage 22 in the vertical direction. In this case, the upper moving system similar to the moving body 63 is disposed on the upper side of the holding plate 24, and the shaft 61 is inserted into the upper moving body, and the upper moving body can move up and down along the shaft 61. In addition, the upper bracket 64 is not assembled to the upper end of the shaft 61 but is assembled to the upper moving body. The cam follower 77 is not provided on the bracket 66 but is provided behind the upper bracket 64. Therefore, the bracket 66 is not provided.

In the above embodiment, as shown in FIG. 6, the upper pestle 40 and the shaft 61 are raised and lowered integrally, and the lower pestle 50 and the shaft 61 are raised and lowered separately. In contrast, the lower pestle 50 and the shaft 61 may be raised and lowered integrally, and the upper pestle 40 and the shaft 61 may be raised and lowered separately. Specifically, the moving body 63 and the bracket 66 are not provided, and the lower bracket 65 is assembled to the lower end portion of the shaft 61. Thereby, the lower pestle 50 and the shaft 61 are raised and lowered integrally. On the other hand, with mobile The upper moving system similar to the body 63 is disposed on the upper side of the holding plate 24, and the shaft 61 is inserted into the upper moving body. The upper moving body can move up and down along the shaft 61. In addition, the upper bracket 64 is not assembled to the upper end of the shaft 61 but is assembled to the upper moving body. Thereby, the upper pestle 40 and the shaft 61 are raised and lowered separately. The cam follower 77 is provided behind the upper bracket 64.

In the above-mentioned embodiment, the period from when the beater 21 passes through the rotary press device 100 to when the beater 21 reaches the powder supply device 90 is to raise the lower pestle 50 and then lower it. On the other hand, the cam follower 78 of the beater 21 may be operated by the cam for the lower punch after the beater 21 passes the rotary press device 100 until the beater 21 reaches the powder supply device 90. 74 was pushed down after being pulled down. As a result, the lower punch 50 inserted into the mortar hole 31 of the mortar 30 is lowered after the spindle punch 21 passes the rotary press device 100 and then rises. When the lower pestle 50 is lowered, the pestle top 52 of the lower pestle 50 is pushed out from the mortar hole 31, and the shaped tablet is dropped from the mortar hole 31. By lowering the lower pestle 50 to rise, the top 52 of the lower pestle 50 is inserted into the mortar hole 31.

In the embodiment described above, the travel drive device 80 is a chain drive device, but it may be another drive device such as a linear motor or a screw drive device. For example, the screw drive device shown in the plan view of FIG. 12 may be applied to the travel drive device 80. As shown in FIG. 12, the lead screw 87 is provided along the straight portion 11 b in parallel with the straight portion 11 b of the upper rail 11. The lead screw 87 is rotatably supported by a bearing or the like. A spiral groove 88 is formed on the outer peripheral surface of the lead screw 87. On the other hand, a slider 89 is provided on the rear surface of the roller support plate 23 of each spindle 21, The isolator 89 is inserted into the groove 88. When the lead screw 87 is rotationally driven by a power source such as a motor, the spindle 21 is advanced. A lead screw similar to the lead screw 87 is provided along the linear portion 11 a on the opposite side, and the spindle 21 may be driven by the rotation of the lead screw.

In the embodiment described above, the installation position of the rotary press device 100 is on the side of the linear portion 11 b of the upper rail 11, but may be on the side of the arc portion 11 d of the upper rail 11. The arc-shaped portion 11 d draws the arc-shaped trajectory of the chipping machine 21. Therefore, it is effective to allow the upper press roller 102 to move along the rotation axis 103. That is, at the timing of the start of pressurization, when the upper punch roller 102 contacts the head 43 of the upper pestle 40, and until the upper punch roller 102 reaches the lowest point, the head 43 is drawn with an arc-shaped trajectory. The upper press roller 102 is moved in the direction of the rotation shaft 103 to compress the coil spring 104 (or the coil spring 105). After the upper stamping roller 102 reaches the lowest point, until the upper stamping roller 102 is separated from the head 43 of the upper pestle 40 at the timing of the end of the press, the upper stamping is performed by the head 43 which draws an arc-shaped trajectory. The roller 102 moves in the opposite direction to restore the coil spring 104 (or the coil spring 105). By the operation of the upper punch roller 102 described above, slipping does not occur between the upper punch roller 102 and the head 43 of the upper pestle 40, and it is possible to prevent the upper punch roller 102 and the upper wheel 101 from being overloaded. The same applies to the lower press roller 107 on the lower side.

In the embodiment described above, the shapes of the tracks 11 and 12 are oblate. However, the shapes of the tracks 11 and 12 are not limited to the oblong shape as long as the shapes of the tracks 11 and 12 are closed.

40‧‧‧ Upper pestle

41‧‧‧Tobe

42‧‧‧ pestle top

43‧‧‧Head

50‧‧‧ Lower Pestle

51‧‧‧Tobe

52‧‧‧ pestle top

53‧‧‧Head

100‧‧‧Rotary stamping device

101‧‧‧upper round

102‧‧‧Upper pressing roller (upper crimping part)

103‧‧‧rotation axis

106‧‧‧ lower round

107‧‧‧Lower stamping roller (lower crimping part)

108‧‧‧rotation axis

110‧‧‧Pressure actuator (pressurizer)

111‧‧‧ plunger

114‧‧‧ Displacement Sensor

115‧‧‧ connecting member

116‧‧‧Right end of connecting member

117‧‧‧ the left end of the connecting member

120‧‧‧ Rotary Drive

121‧‧‧ Motor

122‧‧‧The first transmission mechanism

122a‧‧‧Gear

122b‧‧‧Gear

122c‧‧‧pulley

122d‧‧‧ timing belt

122e‧‧‧secondary pulley

122f‧‧‧ timing belt

122g‧‧‧secondary pulley

122h‧‧‧ timing belt

122i‧‧‧pulley

123‧‧‧Second transmission mechanism

123a‧‧‧pulley

123b‧‧‧ timing belt

123c‧‧‧secondary pulley

123d‧‧‧ timing belt

123f‧‧‧secondary belt pulley

123g‧‧‧ timing belt

123i‧‧‧pulley

124‧‧‧ fixed speed control circuit

P‧‧‧Stamping position

Claims (13)

A punching device sequentially punches a plurality of upper punches in a predetermined punching position and a plurality of lower punches located on the lower side of the upper punches in sequence in a punching position. The punching device includes: an upper wheel connected to the punching positions. The upper side is provided to be rotatable; a plurality of upper crimping portions are arranged in a row along the circumferential direction of the upper wheel and are crimped to the head of the upper end of the upper pestle; the lower wheel is connected to the foregoing The lower side of the punching position is provided to be rotatable; and a plurality of lower crimping portions are arranged in a row along the circumferential direction of the lower wheel and are crimped to the head of the lower end of the lower pestle. The press device according to claim 1, wherein the upper crimping portion is rotatably mounted on the upper wheel around an axis parallel to a central axis of the upper wheel, and the lower crimping portion is wound around The lower wheel is rotatably attached to the lower wheel while facing a central axis of the lower wheel. The press device according to claim 2, wherein the upper crimping portion has an outer peripheral surface formed in a cylindrical surface shape around its axis, and the lower crimping portion has an outer peripheral surface formed in a cylindrical surface around its axis. The press device according to claim 1, further comprising an upper elastic member and a lower elastic member, wherein the upper crimping portion is mounted on the upper wheel so as to be movable in parallel with respect to a center axis of the upper wheel, and The upper elastic member holds the upper crimping portion against movement of the upper crimping portion, The lower crimping portion is mounted on the lower wheel so as to be movable parallel to the central axis of the lower wheel, and the lower elastic member holds the lower crimping portion against movement of the lower crimping portion. The punching device according to claim 1, wherein the circumferential distance between the upper crimping portions adjacent to each other is equal to the interval between the upper punches, and the circumferential distance between the lower crimping portions adjacent to each other is the same as the above. The intervals between the lower pestles are equal to each other. The press device according to claim 1, further comprising: a rotary driver that rotationally drives the upper wheel and the lower wheel. The punching device according to claim 6, wherein the timing of the upper punch passing the punching position is synchronized, and the upper wheel is rotationally driven by the rotary drive machine so that the upper crimping portion passes the punching position, and The lower punch is synchronized with the timing of the punching position, and the lower wheel is rotationally driven by the rotary driving machine to pass the lower crimping portion through the punching position. The punching device according to claim 6, wherein the upper wheel is rotationally driven by the rotary driver so that a peripheral speed of the upper crimping portion around a center axis of the upper wheel and a moving speed of the upper pestle Equally, the lower wheel is rotationally driven by the rotary drive so that the peripheral speed of the lower crimping portion around the central axis of the lower wheel is equal to the moving speed of the lower pestle. The punching device according to claim 1, further comprising a pressurizing device, which applies a load in a direction in which the upper wheel and the lower wheel approach each other. At least one of the upper wheel and the lower wheel. The press device according to claim 9, wherein the press machine applies a constant load to at least one of the upper wheel and the lower wheel. A rotary stamping disk includes a rotatable wheel and a crimping portion. The crimping portion is attached to the wheel at a position deviated from a central axis of the wheel, and is crimped to a powder that is beaten with a pestle. Pestle's head. The rotary stamping disk according to claim 11, wherein the crimping portion is rotatably mounted on the wheel about an axis parallel to a center axis of the wheel. The rotary press disk according to claim 12, wherein the crimping portion has an outer peripheral surface formed in a cylindrical surface shape around its axis.