Roll compaction molding device and conveying device for roll compaction molding

Abstract

To convey a compressed molded product while maintaining its quality.SOLUTION: A roll compaction molding device 10 comprises: a pair of molding rolls 21, 22; a pair of weir members 50L, 50R that is disposed on one side with respect to a plane connecting rotation center lines of the pair of molding rolls 21, 22, spaced apart from each other in the axial direction of the pair of molding rolls 21, 22, and arranged along outer peripheral surfaces of the pair of molding rolls; and a conveyor 80 that is provided on a side opposite to the side where the pair of weir members 50L, 50R is provided with respect to the pair of molding rolls 21, 22, and receives a belt-shaped compressed molded product 2 molded through a gap S1 between the pair of molding rolls 21, 22.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a roll compaction molding device and a conveying device for roll compaction molding. [Background technology]

[0002] Japanese Patent Publication No. 2017-000955 discloses a dry granulator (roll compaction molding device) equipped with a conveying screw for conveying raw materials, a pair of upper and lower raw material compression rolls (forming rolls), and a pair of upper and lower seals and side seals (stop members) that form a closed space surrounding the raw material biting portion of the pair of raw material compression rolls. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-000955 Summary of the Invention [Problem to be solved by the invention]

[0004] The present inventors wish to transport compression molded products molded by a roll compaction molding device while maintaining their quality. [Means for solving the problem]

[0005] The roll compaction molding device disclosed here comprises a pair of forming rolls arranged with their axes parallel to one another at a predetermined distance, a pair of stop members arranged on one side of a plane connecting the rotation center lines of the pair of forming rolls at a distance in the axial direction of the pair of forming rolls and along the outer peripheral surfaces of the pair of forming rolls, and a conveyor arranged on the opposite side of the pair of forming rolls from the side on which the pair of stop members are arranged, and which receives a strip-shaped compression molded product molded through the gap between the pair of forming rolls.

[0006] According to such a roll compaction molding device, the compression-molded products to be molded can be transported sequentially by a conveyor, so that the quality of the compression-molded products to be molded can be maintained while they are transported.

[0007] The conveying device for roll compaction molding is a conveying device that conveys a band-shaped compression-molded product molded through the gap between a pair of molding rolls of a roll compaction molding device. The conveying device for a roll compaction molding device includes a conveyor that receives and conveys a band-shaped compression molded product formed through the gap between a pair of molding rolls, and a guide roll that sandwiches the band-shaped compression molded product between the conveyor and the guide roll.

[0008] According to this conveying device for roll compaction molding, the band-shaped compression-molded products formed by the roll compaction molding device are sequentially conveyed by a conveyor, so that the quality of the compression-molded products formed by the roll compaction molding device can be maintained while they are conveyed. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a partial front view of a roll compaction molding apparatus 10. [Figure 2] FIG. 2 is a partial side view of the roll compaction molding apparatus 10. [Figure 3] FIG. 3 is a side view of the roll compaction molding apparatus 10. [Figure 4] FIG. 4 is a side view of the roll compaction molding apparatus 10. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the present disclosure will be described below. In the drawings, components and parts that perform the same function are appropriately designated by the same reference numerals. Each drawing is a schematic diagram, and the dimensional relationships (e.g., length, width, thickness, etc.) in each drawing do not reflect actual dimensional relationships. Unless otherwise specified, the present invention is not limited to the embodiment disclosed herein. In this specification, a notation such as "X to Y" indicating a numerical range means "X or more and Y or less" unless otherwise specified. In each drawing, the directions of up, down, left, right, front, and rear are appropriately indicated by arrows U, D, L, R, F, and Rr, respectively. The directions of up, down, left, right, front, and rear are defined merely for convenience of explanation.

[0011] <Configuration of the roll compaction molding device 10> Fig. 1 is a partial front view of the roll compaction molding apparatus 10. Fig. 2 is a partial side view of the roll compaction molding apparatus 10. Fig. 3 is a side view of the roll compaction molding apparatus 10.

[0012] <Material 1> The roll compaction molding apparatus 10 is an apparatus that compresses material 1 (granulated powder) into a sheet. Here, material 1 includes ceramic powder and a binder. The binder is made of resin. In this embodiment, material 1 is fired after molding to form a porous ceramic body. Material 1 may further include a pore-forming material that forms voids. However, the components of material 1 are not particularly limited. The properties of material 1, such as viscosity, are also not particularly limited. In this embodiment, the roll compaction molding apparatus 10 presses and heats material 1 between a pair of molding rolls 21 and 22, thereby forming a strip-shaped compression-molded product 2 of ceramic powder. From this perspective, an appropriate amount of binder is contained relative to the ceramic powder. Material 1 is granulated powder, but the solid content is appropriately adjusted. Material 1 may also contain water, alcohol, acetate, or the like.

[0013] Examples of ceramic powders include alumina, zirconia, and silicon nitride. The average particle size (D50) of the ceramic powder may be, for example, 0.1 to 100 μm. Examples of binders include acrylic, PVB (polyvinyl butyral), and PVA (polyvinyl alcohol). The binder content may be adjusted to an amount that can fill the spaces between the ceramic powder particles. The volume ratio of the ceramic powder contained in material 1 may be, for example, 75% or less (e.g., approximately 72%). The examples shown here are merely examples of material 1. Material 1 may also contain carbon fiber. Material 1 may include, for example, 3YSZ (3 mol% yttria-stabilized zirconia) with an average particle size (D50) of 0.1 μm or carbon fiber with an average particle size (D50) of 100 μm. Various materials used in roll compaction molding may be used for material 1.

[0014] According to the inventor's findings, acquired through trial and error, when granulated powder containing a mixture of ceramic powder and organic components such as a binder is compacted by roll compaction, the molding temperature tends to have the following effects. Increasing the molding roll temperature (high molding temperature) tends to make the molded sheet more likely to stick to the molding roll and be pulled when peeled off from the molding roll. Furthermore, the molded sheet tends to be soft and prone to stretching, deformation, and creases. If the molding temperature is too high, the flexibility and adhesiveness of the molded material increases, increasing the likelihood of creases and stretching of the molded sheet. In contrast, lowering the molding roll temperature (low molding temperature) makes the material (granulated powder) less likely to be crushed, increasing the molding load, and tending to cause waviness and insufficient density. If the molding temperature is too low, the molded sheet is prone to waviness and insufficient density due to insufficient flexibility and adhesiveness, and is prone to cracking at the sheet edges. This tendency becomes more pronounced when the organic content of the granulated powder is too high. On the other hand, when the organic content is too low, the spaces between the ceramic powder particles cannot be filled, and molding with sufficient density cannot be achieved. From this perspective, it is advisable to appropriately adjust the amount of binder relative to the ceramic powder.

[0015] 1 and 2, the roll compaction molding apparatus 10 includes a pair of forming rolls 21, 22, a rotating device 30, a supplying device 40, a pair of stoppers 50L, 50R, a conveyor 80, and a guide roll 90. The conveyor 80 and the guide roll 90 constitute a conveying device 70 (conveying device for roll compaction molding) that conveys the band-shaped compression-molded product 2 formed through the gap S1 between the pair of forming rolls 21, 22 of the roll compaction molding apparatus 10.

[0016] The pair of forming rolls 21, 22 are each cylindrical rolls. The pair of forming rolls 21, 22 are arranged with a predetermined gap between them so that their axes are parallel. In FIGS. 1 and 2, the direction along the axes of the forming rolls 21, 22 is defined as the left-right direction (LR) of the roll compaction molding apparatus 10. The direction in which the forming rolls 21, 22 are aligned parallel to each other at the same height is defined as the front-rear direction (F-Rr) of the roll compaction molding apparatus 10. Here, the side where the forming roll 21 is arranged is defined as the "front (F)" and the side where the forming roll 22 is arranged is defined as the "rear (Rr)." The "left (L)" and "right (R)" are defined in a position where the apparatus is standing upright and facing forward. In this embodiment, the rotation axes 21x, 22x of the pair of forming rolls 21, 22 extend approximately horizontally in the left-right direction, as shown in Figures 1 and 2, and a required distance is provided between the pair of forming rolls 21, 22 in the front and back.

[0017] One of the forming rolls, 22, is configured to be movable in parallel in the front-to-rear direction. By moving the forming roll 22 in the front-to-rear direction, the distance between the forming rolls 21 and 22 can be changed. This makes it possible to change the thickness of the formed sheet 2. The movable forming roll may be the forming roll 21, or both the forming rolls 21 and 22.

[0018] <Rotation device 30> The rotation device 30 is a device that rotates at least one of the pair of forming rolls 21, 22. In this embodiment, the rotation device 30 is configured to rotate both of the pair of forming rolls 21, 22 in synchronization. However, the rotation device 30 may be configured to rotate only one of the pair of forming rolls 21, 22. In that case, the other forming roll rotates passively. In this embodiment, the rotation device 30 includes a drive motor 31 and a transmission mechanism 32 that transmits the rotation of the drive motor 31 to the pair of forming rolls 21, 22. The transmission mechanism 32 includes, for example, a chain that is engaged with the drive motor 31 via gears and is also engaged with the forming rolls 21, 22 via gears. However, the configuration of the transmission mechanism 32 is not limited thereto.

[0019] <Pair of stop members 50L, 50R> The pair of separators 50L, 50R are disposed on one side of a plane connecting the rotational centerlines of the pair of forming rolls 21, 22, spaced apart in the axial direction of the pair of forming rolls 21, 22, and have a shape that conforms to the outer circumferential surfaces of the pair of forming rolls 21, 22. Although not shown, walls 52F, 52Rr that also serve as partitions in the front-to-rear direction may be provided above the pair of forming rolls 21, 22. The walls 52F, 52Rr may be provided to separate the upper portions of the forming rolls 21, 22 and to face each other in the front-to-rear direction. A seal may be formed between the walls 52F, 52Rr and the forming rolls 21, 22 to prevent material leakage.

[0020] Here, the left separator 50L extends in the front-to-rear and up-down directions. The left separator 50L is configured in a flat plate shape. The left separator 50L contacts the pair of forming rolls 21, 22 from the upstream side in the feed direction of the material 1. Here, the left separator 50L is disposed above the pair of forming rolls 21, 22, and its lower edge contacts the outer peripheral surfaces 21a, 22a of the pair of forming rolls 21, 22.

[0021] The right separator 50R also extends in the arrangement direction of the pair of forming rolls 21, 22 (here, the front-to-back direction) and in the feed direction of the material 1 (here, the up-and-down direction). The right separator 50R is also configured in a flat plate shape. The right separator 50R contacts the pair of forming rolls 21, 22 from the upstream side in the feed direction of the material 1. In this case, the right separator 50R is disposed above the pair of forming rolls 21, 22, and its lower edge contacts the outer peripheral surfaces 21a, 22a of the pair of forming rolls 21, 22.

[0022] As shown in FIG. 2, the lower ends of the pair of separators 50L, 50R are formed into a shape that follows the arc of the outer peripheral surfaces 21a, 22a of the pair of forming rolls 21, 22, and are pressed from above so as to contact the outer peripheral surfaces 21a, 22a of the pair of forming rolls 21, 22, respectively. The pair of separators 50L, 50R are disposed between the front and rear walls 52F, 52Rr and define the axial boundary of the forming rolls 21, 22 at the material inlet P1 through which the material 1 is introduced. The pair of separators 50L, 50R prevent the material 1 from scattering to the left or right. The width of the formed sheet 2 is determined by the distance between the pair of separators 50L, 50R.

[0023] In this embodiment, the pair of barrier members 50L, 50R are attached to front and rear walls 52F, 52Rr provided above the pair of forming rolls 21, 22. At least one of the pair of barrier members 50L, 50R is preferably provided so that its position can be adjusted left and right. By adjusting the position of at least one of the pair of barrier members 50L, 50R left and right, the distance between the left barrier member 50L and the right barrier member 50R is changed. By changing the distance between the left barrier member 50L and the right barrier member 50R, the width of the sheet 2 formed by the roll compaction forming apparatus 10 is changed.

[0024] In this embodiment, the roll compaction molding device 10 has a material inlet P1 which is a space surrounded by opposing walls 52F, 52Rr above a pair of molding rolls 21, 22 and a pair of left and right closure members 50L, 50R.

[0025] <Feeding device 40> The supply device 40 is a device that sends the material 1 toward the pair of forming rolls 21, 22. Here, the supply device 40 is disposed above the pair of forming rolls 21, 22 (in other words, above the material inlet P1). In this embodiment, the supply device 40 is configured with a hopper 41. In this embodiment, the hopper 41 is a container having an inverted cone shape or an inverted square pyramid shape, and a valve 42 is provided at the bottom. The material 1 is stored in the hopper 41, and the opening of the valve 42 at the bottom is adjusted. This adjusts the amount of material 1 fed into the material inlet P1.

[0026] The supply device 40 may be equipped with a mixer / agitator that mixes the material 1 stored in the hopper 41. The mixer / agitator may be configured separately from the hopper 41, or may be configured integrally with the hopper 41. The supply device 40 is not limited to the above, and any known slurry transport device or powder supply device can be used without any particular limitation.

[0027] In the roll compaction molding apparatus 10 shown in FIGS. 1 and 2, the material 1 is fed by the feeder 40 into a material inlet P1 above the pair of forming rolls 21, 22. The pair of forming rolls 21, 22 rotate with their opposing outer peripheral surfaces facing downward. As a result, the material 1 fed into the material inlet P1 is drawn into the gap S1 between the pair of forming rolls 21, 22. The material 1 drawn into the gap S1 between the pair of forming rolls 21, 22 is compressed in the gap S1 between the pair of forming rolls 21, 22. The material 1 is formed in the gap S1 between the pair of forming rolls 21, 22 to a thickness corresponding to the distance between the pair of forming rolls 21, 22, and is discharged from below the pair of forming rolls 21, 22.

[0028] The inventors of the present invention wish to transport the band-shaped compression-molded product 2 to the next process while maintaining its quality in a flat state after molding. Therefore, the inventors have conceived of a system in which the band-shaped compression-molded product 2 is peeled off from one of the molding rolls 21 to which it has been attached after molding, and is then received by a conveyor 80 and transported at a constant speed, as shown in FIG.

[0029] Conveyor 80 Here, the conveyor 80 is provided on the side opposite the pair of forming rolls 21, 22 from the side where the pair of blocking members 50L, 50R are provided, and is a device that receives the band-shaped compression-molded product 2 molded through the gap S1 between the pair of forming rolls 21, 22. The conveyor 80 may be configured as a belt conveyor in which an unsupported belt 84 is wound around rollers 81, 82 arranged on a required conveyance path. The width of the belt 84 is preferably wider than the width of the band-shaped compression-molded product 2. The conveyor 80 is preferably disposed in a position suitable for receiving the band-shaped compression-molded product 2 discharged below the pair of forming rolls 21, 22. In this embodiment, the conveyor 80 is disposed below the pair of forming rolls 21, 22, shifted to one side (the front side in this embodiment) from directly below the gap S1 between the pair of forming rolls 21, 22. According to this roll compaction molding device, the band-shaped compression-molded product 2 formed through the gap S1 between the pair of forming rolls 21, 22 is placed on a conveyor and transported while maintaining its band-like shape, thereby maintaining the quality of the formed compression-molded product in good condition.

[0030] The conveying speed of the conveyor 80 may be controlled to convey the band-shaped compression-molded product 2 forward, for example, in accordance with the rotation speed of the pair of forming rolls 21, 22. The conveyor 80 may be provided with a sheet cutter unit 85 for cutting the band-shaped compression-molded product 2 to a predetermined length. When the sheet cutter unit 85 is provided, the band-shaped compression-molded product 2 is cut to a predetermined length during conveyance.

[0031] Furthermore, the present inventors have noticed that the band-shaped compression-molded product 2 discharged from below the pair of molding rolls 21, 22 may stick to one of the pair of molding rolls 21, 22. Regarding this phenomenon, the present inventors have found that the band-shaped compression-molded product 2 immediately after molding may become highly flexible and sticky due to heat. Therefore, the band-shaped compression-molded product 2 that has stuck to one of the molding rolls may subsequently be pulled or removed from the molding roll, which may result in creases or undulations. Therefore, it is difficult to simply peel the band-shaped compression-molded product 2 from the one molding roll 21 to which it stuck after molding, receive it on the conveyor 80, and transport it at a constant speed. Taking this phenomenon into consideration and through trial and error, the present inventors have come up with the idea of ​​providing a guide roll 90 to sandwich the band-shaped compression-molded product 2 between the conveyor 80 and the guide roll 90, as shown in FIG. 3 .

[0032] <Guide Roll 90> As shown in FIG. 3 , the guide roll 90 is a roller that sandwiches the band-shaped compression-molded product 2 between itself and the conveyor 80. The band-shaped compression-molded product 2 is drawn forward along the circumferential direction of the front forming roll 21. The band-shaped compression-molded product 2 is further drawn obliquely forward in the tangential direction of the forming roll 21, pressed onto the belt 84 of the conveyor 80 by the guide roll 90, and carried and transported by the belt 84 of the conveyor 80. The transport speed of the conveyor 80 is adjusted to match the rotation speed of the pair of forming rolls 21, 22, so that the molding speed of the band-shaped compression-molded product 2 and the transport speed of the belt 84 match. As a result, the molded band-shaped compression-molded product 2 is pulled down by the weight of the guide roll 90 and pulled out sandwiched between the conveyor 80 and the guide roll 90. Therefore, the band-shaped compression-molded product 2 is appropriately peeled off from the forming roll 21 (the front side in this embodiment) of the pair of forming rolls 21, 22 to which it adheres after molding, and is transported while pressed flat against the conveyor 80. This makes it difficult for the band-shaped compression-molded product 2 to be stretched excessively after molding, and prevents creases and undulations from occurring. Therefore, the band-shaped compression-molded product 2 after molding can be transported to the next process in a flat state while maintaining its quality.

[0033] In this embodiment, the guide roll 90 may be a free roller via a bearing or the like. As a result, the guide roll 90 rotates in accordance with the conveying speed of the belt 84 while pressing the band-shaped compression-molded product 2 against the belt 84 of the conveyor 80. Furthermore, the band-shaped compression-molded product 2 discharged from the gap S1 between the pair of forming rolls 21, 22 is pulled down by the weight of the guide roll 90 and is pulled while being sandwiched between the guide roll 90 and the belt 84. As a result, a required tension is applied to the band-shaped compression-molded product 2, and it is peeled off from one of the forming rolls 21 to which it has stuck.

[0034] The position of the guide roll 90 is preferably adjustable along the conveying direction of the conveyor 80. The position of the guide roll 90 is preferably adjusted so that the band-shaped compression-molded product 2 is peeled off in a tangential direction to the circumferential direction of the front forming roll 21 to which the band-shaped compression-molded product 2 adheres after molding. In other words, if the position of the guide roll 90 is too close to the gap S1 between the pair of forming rolls 21, 22, the band-shaped compression-molded product 2 may not be successfully peeled off from the forming roll 21 in the tangential direction after molding.

[0035] FIG. 4 is a side view of a roll compaction molding apparatus 10. FIG. 4 illustrates a case in which creases or undulations may occur in a strip-shaped compression-molded product 2 during roll compaction molding. In FIG. 4, a freely rotating guide roll 90 is disposed on a conveyor 80. In the example shown in FIG. 4, the strip-shaped compression-molded product 2 is lifted while attached to the molding roll 21 along the circumferential direction (A), and then bent and peeled off. This may result in creases or undulations in the strip-shaped compression-molded product 2. According to the inventor's findings, this tends to occur when the guide roll 90 is positioned too far forward relative to the gap S1 between the pair of molding rolls 21 and 22. On the other hand, if the guide roll 90 is positioned too far away, the distance between the molding roll 21 and the guide roll 90 increases, causing the strip-shaped compression-molded product 2 to sag due to its own weight. As a result, undulations may occur in the strip-shaped compression-molded product 2.

[0036] From this perspective, it is preferable that the position of the guide roll 90 is adjustable along the conveying direction of the conveyor 80. By appropriately adjusting the position of the guide roll 90, it is possible to appropriately prevent creases and undulations from occurring in the band-shaped compression-molded product 2. For example, it is preferable that a long hole is provided along the conveying direction of the conveyor 80 at the position where the guide roll 90 is attached, and that the attachment position of the guide roll 90 is adjustable. The configuration in which the position of the guide roll 90 is adjustable along the conveying direction of the conveyor 80 is not limited to this.

[0037] In this way, the position of the guide roll 90 may be adjusted through pre-executed prototyping in accordance with molding conditions such as the properties of the material to be molded (e.g., viscosity, solid content, and powder particle size of the material 1), the thickness of the strip-shaped compression-molded product 2 after molding, and the temperature of the molding rolls. In addition, the guide roll 90 may have a weight adjusted so as to apply an appropriate tension to the strip-shaped compression-molded product 2. The weight of the guide roll 90 may be adjusted as a design factor through actual molding conditions and prototyping.

[0038] Furthermore, the guide roll 90 is configured to be movable up and down relative to the conveyor 80. In this embodiment, a rotation shaft 91 of the guide roll 90 is attached to one end of a swing arm 92. This allows the guide roll 90 to move up and down relative to the conveyor 80 in response to the swing of the swing arm 92. Therefore, for example, when the tension applied to the band-shaped compression-molded product 2 increases, the guide roll 90 rises up from the conveyor 80 accordingly. This movement relieves the tension acting on the band-shaped compression-molded product 2. In this case, the front and rear positions of the guide roll 90 relative to the pair of forming rolls 21, 22 can be adjusted by the position of the swing shaft 93. The configuration in which the guide roll 90 moves up and down relative to the conveyor 80 is not limited thereto. For example, although not shown in the drawings, a guide may be provided in the vertical direction, and the rotation shaft of the guide roll 90 may move along the guide. As described above, various mechanisms can be adopted for the configuration in which the guide roll 90 moves up and down relative to the conveyor 80. The guide rolls 90 move up and down relative to the conveyor 80, so that the position of the guide rolls 90 is appropriately adjusted, and the occurrence of folds and undulations is suppressed.

[0039] Alternatively, the guide roll 90 may be combined with various mechanisms that allow the guide roll 90 to move up and down relative to the conveyor 80, and configured so that the guide roll 90 is pressed toward the conveyor 80 by the elastic reaction force of a spring 95, as shown in FIG. 3 . With such a configuration, the force pressing the strip-shaped compression-molded product 2 against the conveyor 80 can be adjusted by the elasticity of the spring 95. As a result, even a guide roll 90 with a light weight can press the strip-shaped compression-molded product 2 against the conveyor 80 with an appropriate force, thereby preventing creases or undulations from occurring in the strip-shaped compression-molded product 2. The springs 95 may be attached, for example, to both sides of the rotation shaft 91 of the guide roll 90. Alternatively, instead of attaching the springs 95, weights may be attached to both sides of the rotation shaft 91 of the guide roll 90. In this case, the weight of the guide roll 90 can be adjusted by the weights on both sides of the rotation shaft 91 of the guide roll 90. In this case, the weight of the guide roll 90 may be reduced in advance, and the force with which the guide roll 90 is pressed down toward the conveyor 80 may be adjusted with a spring or weight. This increases the versatility of the roll compaction molding device 10. Note that if the weight of the guide roll 90 can be prevented from causing creases or undulations in the strip-shaped compression-molded product 2, the spring 95 may be unnecessary.

[0040] 4 illustrates a case in which the compression-molded product 2 to be molded sticks to one of the molding rolls 21 of the pair of molding rolls 21, 22 of the roll compaction molding apparatus 10. On the other hand, there are cases in which the compression-molded product 2 to be molded is less likely to stick to one of the molding rolls 21 after passing through the pair of molding rolls 21, 22 of the roll compaction molding apparatus 10. In this case, after passing through the pair of molding rolls 21, 22 of the roll compaction molding apparatus 10, the compression-molded product 2 to be molded quickly peels off the pair of molding rolls 21, 22 and is sequentially placed in a strip-like state on the belt 84 of the conveyor 80 and transported. Thus, depending on the properties of the strip-shaped compression-molded product 2 after molding, the guide roll 90 may not be provided. Even without the guide roll 90, the compression-molded product 2 is placed on the conveyor 80 and transported to the next process in a flat state while maintaining its quality.

[0041] In addition, the conveying device 70 for roll compaction molding proposed here, as shown in Figures 2 and 3, is equipped with a conveyor 80 that receives and conveys the strip-shaped compression molded product 2 molded through the gap S1 between a pair of molding rolls 21, 22, and a guide roll 90 that sandwiches the strip-shaped compression molded product 2 between the conveyor 80.

[0042] According to the conveying device 70 for roll compaction molding, the band-shaped compression-molded products 2 molded by the roll compaction molding device 10 are sequentially conveyed by the conveyor 80. Therefore, the quality of the band-shaped compression-molded products 2 molded by the roll compaction molding device 10 can be maintained while being conveyed.

[0043] As described above, the guide roll 90 may be, for example, a free roller. The position of the guide roll 90 may be adjustable along the conveying direction of the conveyor 80. The guide roll 90 may be configured to be movable up and down relative to the conveyor 80.

[0044] Although the above detailed description has been given using specific embodiments, these are merely examples and do not limit the scope of the claims. Thus, the claimed technology includes various modifications and variations of the above-described embodiments. Furthermore, the roll compaction molding apparatus proposed herein can be modified in various ways, and the components and processes described herein can be omitted or combined as appropriate, provided that no particular problems arise.

[0045] This specification includes the following items 1 to 4.

[0046] Section 1: a pair of forming rolls arranged with a predetermined gap therebetween and with their axes parallel to one another; a pair of stop members arranged on one side of a plane connecting the rotation center lines of the pair of forming rolls at an interval in the axial direction of the pair of forming rolls and along the outer peripheral surfaces of the pair of forming rolls; A conveyor is provided on the opposite side of the pair of forming rolls from the side where the pair of stop members are provided, and receives a band-shaped compression-molded product formed through the gap between the pair of forming rolls. Roll compaction molding equipment.

[0047] Section 2: Item 1. The roll compaction molding device according to item 1, further comprising a guide roll that sandwiches a band-shaped compression-molded product between the conveyor and the guide roll.

[0048] Section 3: Item 3. The roll compaction molding device according to item 2, wherein the guide roll is a free roller.

[0049] Section 4: Item 4. The roll compaction molding device according to item 2 or 3, wherein the position of the guide roll is adjustable along the conveying direction of the conveyor.

[0050] Section 5: 5. The roll compaction molding device according to any one of claims 2 to 4, wherein the guide roll is configured to be movable up and down relative to the conveyor.

[0051] Item 6: 6. The roll compaction molding device according to claim 1, further comprising a rotation device that rotates at least one of the pair of molding rolls.

[0052] Section 7: A conveying device that conveys a band-shaped compression-molded product formed through a gap between a pair of forming rolls of a roll compaction molding device, a conveyor that receives and transports a band-shaped compression-molded product formed through the gap between the pair of forming rolls; a guide roll for sandwiching the band-shaped compression molded product between the guide roll and the conveyor; A conveying device for a roll compaction molding device, comprising:

[0053] Section 8: Item 8. The conveying device according to item 7, wherein the guide roll is a free roller.

[0054] Section 9 Item 9. The conveying device according to item 7 or 8, wherein the position of the guide roll is adjustable along the conveying direction of the conveyor.

[0055] Section 10: Item 9. The conveying device according to item 7 or 8, wherein the guide roll is configured to be movable up and down relative to the conveyor. [Explanation of symbols]

[0056] 1. Material slurry (granulated powder) 10. Roll compaction molding device 21, 22 Forming roll 21a, 22a Outer circumferential surface of forming roll 21x, 22x Rotation axes of forming rolls 21, 22 30 Rotating Device 31 Drive motor 32 Transmission Mechanism 40 Feeding device 41 Hopper 42 Valves 50L, 50R sealing material 52F, 52Rr The wall separating the front and rear 70 Conveying device for roll compaction molding 80 Conveyor 81,82 Laura 84 Unsupported Belt (Belt) 85 Sheet cutter unit 90 Guide Roll 91 Rotation axis of guide roll 90 92 Swing arm 93 Swing axis P1 Material input port S1: Gap between the pair of forming rolls 21 and 22

Claims

1. a pair of forming rolls arranged with a predetermined gap therebetween and with their axes parallel to each other; a pair of stop members arranged on one side of a plane connecting the rotation center lines of the pair of forming rolls at an interval in the axial direction of the pair of forming rolls and along the outer peripheral surfaces of the pair of forming rolls; A conveyor is provided on the opposite side of the pair of forming rolls from the side where the pair of stop members are provided, and receives a band-shaped compression-molded product formed through the gap between the pair of forming rolls. Roll compaction molding equipment.

2. The roll compaction molding device according to claim 1 , further comprising a guide roll for sandwiching the band-shaped compression-molded product between itself and the conveyor.

3. 3. The roll compaction molding apparatus according to claim 2, wherein the guide rolls are free rollers.

4. 3. The roll compaction molding device according to claim 2, wherein the position of the guide roll is adjustable along the conveying direction of the conveyor.

5. 3. The roll compaction molding device according to claim 2, wherein the guide rolls are configured to be movable up and down relative to the conveyor.

6. The roll compaction molding apparatus according to claim 1 , further comprising a rotation device that rotates at least one of the pair of molding rolls.

7. A conveying device that conveys a band-shaped compression-molded product formed through a gap between a pair of forming rolls of a roll compaction molding device, a conveyor that receives and transports a band-shaped compression-molded product formed through the gap between the pair of forming rolls; a guide roll for sandwiching the band-shaped compression molded product between the guide roll and the conveyor; A conveying device for roll compaction molding comprising:

8. 8. The transport device for roll compaction molding according to claim 7, wherein the guide rolls are free rollers.

9. 9. The transport device for roll compaction molding according to claim 7 or 8, wherein the position of the guide roll is adjustable along the transport direction of the conveyor.

10. 9. The transport device for roll compaction molding according to claim 7 or 8, wherein the guide roll is configured to be movable up and down relative to the conveyor.

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