WO2024098520A1

WO2024098520A1 - Press roller pressurizing structure and roller press

Info

Publication number: WO2024098520A1
Application number: PCT/CN2022/141038
Authority: WO
Inventors: 温怡彰; 邱昭午; 陈延林; 刘枝钰; 陈昌华
Original assignee: 佛山市恒力泰机械有限公司
Priority date: 2022-11-08
Filing date: 2022-12-22
Publication date: 2024-05-16
Also published as: CN115742413A

Abstract

The present invention provides a press roller pressurizing structure, comprising: two press rollers oppositely arranged on a rack, at least one of the two press rollers being slidably arranged relative to the rack; a first press roller seat and a second press roller seat, the first press roller seat being arranged on one of the two press rollers, and the second press roller seat being arranged on the other of the two press rollers; and press cylinders each comprising a cylinder body and a piston rod, the cylinder bodies being arranged on the first press roller seat, and the piston rods being slidably arranged on the cylinder bodies and extending out of the cylinder bodies to be connected to the second press roller seat. By means of such arrangements, power can be provided for the movement of the press rollers, and the pressurization pressure of the two press rollers can be provided; the pressurization pressure would not be directly transmitted to the rack, so that requirements for the rack are reduced, and the machining difficulty and cost of the rack are reduced; the pressure fluctuation between the two press rollers can be reduced; and a relative gap between the two press rollers can be adjusted. The present invention further provides a roller press, comprising the rack and the described press roller pressurizing mechanism. Even if the rack is not manufactured using an integrated process, the rack can meet the requirement of structural strength, so that the press rollers are more convenient to install.

Description

A roller pressurizing structure and roller press

Technical Field

The invention relates to the technical field of roller presses, and in particular to a roller press structure and a roller press.

Background technique

The existing roller press 100 usually has two facing and rotating rollers 130. Materials with a certain material pressure are continuously brought into the space between the two rollers 130 through a feeding device. At the same time, a hydraulic system applies a strong squeezing force to the rollers 130. Under the action of high pressure, the materials become compacted cakes and are discharged from under the machine.

However, as shown in FIG1 , in most of the current roller presses 100 , the hydraulic cylinder 110 is installed on the frame 120 to apply pressure to the pressure roller 130 , and the frame 120 bears the pressurized pressure of the hydraulic cylinder 110 , which places high requirements on the structural strength of the frame 120 , making the processing of the frame 120 difficult and costly; in addition, in order to meet the requirements of structural strength, the frame 120 can be manufactured by an integrated molding process, but the shape of the frame 120 manufactured by the integrated molding process is relatively limited, which will bring difficulties to the installation of the pressure roller 130 .

Summary of the invention

In order to overcome at least one of the defects of the prior art described above, the present invention provides a roller pressurizing structure, aiming to prevent the frame from being subjected to the pressurizing pressure of the pressing cylinder; the present invention also provides a roller press, including the roller pressurizing structure described above.

The technical solution adopted by the present invention to solve the problem is:

A roller press structure is applied to a roller press, which has a frame. The roller press structure includes: two rollers, which are arranged opposite to each other on the frame, and at least one of the two rollers is slidably arranged relative to the frame; a first roller seat and a second roller seat are arranged opposite to each other, the first roller seat is arranged on one of the two rollers, and the second roller seat is arranged on the other of the two rollers; a pressing cylinder, including a cylinder body and a piston rod, the cylinder body is arranged on the first roller seat, the piston rod is slidably arranged on the cylinder body, and the piston rod extends out of the cylinder body and is connected to the second roller seat.

The present invention provides a roller pressurizing structure. On the one hand, a pressing cylinder provides power for the movement of the rollers and provides pressurizing pressure for the two rollers. On the other hand, when the pressing cylinder is pressurized, the pressurizing pressure is transmitted between the first roller seat, the second roller seat and the two rollers, and the pressurizing pressure will not be directly transmitted to the frame, which reduces the requirements for the frame, thereby reducing the processing difficulty and cost of the frame. In addition, by arranging the first roller seat and the second roller seat to bear the pressurizing pressure of the pressing cylinder, the pressure fluctuation between the two rollers can be reduced, thereby improving the stability and working efficiency of the roller press. Importantly, the relative distance between the first roller seat and the second roller seat can also be adjusted by the relative sliding of the piston rod and the cylinder body, thereby adjusting the relative gap between the two rollers. The structure is simple and the function is easy to implement.

According to some embodiments of the present invention, the cylinder body is at least partially embedded in the first pressure roller seat, and the piston rod extends out of the first pressure roller seat to be connected to the second pressure roller seat.

By adopting the above solution, on the one hand, the space occupied by the pressure roller pressure structure can be reduced, and on the other hand, the assembly stability of the cylinder body can be improved and the influence of the lateral shear stress on the pressing cylinder can be reduced.

According to some embodiments of the present invention, the piston rod is detachably connected to the second pressure roller seat; when the piston rod and the second pressure roller seat are detached, the piston rod retracts into the first pressure roller seat to form a space for parts replacement.

By adopting the above solution, when the piston rod is disassembled from the second pressure roller seat, the piston rod will retract to the first pressure roller seat, so that space can be left between the two pressure rollers for easy replacement of parts and daily maintenance.

According to some embodiments of the present invention, the pressure roller pressurizing structure also includes a locking piece arranged on the second pressure roller seat, and the piston rod is detachably connected to the second pressure roller seat via the locking piece; the locking piece includes a first locking block and a second locking block, the first locking block and the second locking block are detachably connected, and the first locking block and the second locking block form a clamping fixation for the piston rod.

By adopting the above solution, on the one hand, the connection between the piston rod and the second pressure roller seat is made more stable and reliable; on the other hand, the disassembly of the piston rod is made more convenient and labor-saving.

According to some embodiments of the present invention, the first pressing roller seat and the second pressing roller seat are respectively arranged at the ends of the two pressing rollers.

By adopting the above scheme, on the one hand, it is possible to avoid the first pressure roller seat and the second pressure roller seat from occupying the material extrusion space of the two pressure rollers, thereby improving work efficiency, and on the other hand, it is convenient for installation and maintenance of the pressure roller pressurizing structure.

According to some embodiments of the present invention, at least two first pressure roller seats are provided, and at least two second pressure roller seats are provided; at least two of the first pressure roller seats are respectively provided on both sides of one of the pressure rollers; and at least two of the second pressure roller seats are respectively provided on both sides of the other pressure roller.

By adopting the above solution, the two pressing rollers can be better supported, and the forces on the two pressing rollers can be more balanced to improve the working stability and working efficiency of the two pressing rollers.

According to some embodiments of the present invention, the pressure roller pressing structure further includes a thickness adjustment mechanism, and the thickness adjustment mechanism can adjust the relative distance between the first pressure roller seat and the second pressure roller seat.

By adopting the above solution, the forming thickness of the brick blank between the two pressing rollers can be adjusted.

According to some embodiments of the present invention, the thickness adjustment mechanism includes a nut and a lifting screw; the nut is arranged on the first pressure roller seat, the lifting screw is connected to the second pressure roller seat and is screwed to the nut; or, the nut is arranged on the second pressure roller seat, the lifting screw is connected to the first pressure roller seat and is screwed to the nut.

By adopting the above solution, the thickness adjustment mechanism has the advantages of delicate and compact structure, easy implementation and low manufacturing cost.

According to some embodiments of the present invention, the thickness adjustment mechanism further includes a driving device, which drives the lifting screw to rotate and lift.

By adopting the above solution, the driving device can automatically adjust the relative distance between the two pressure rollers, which is convenient and labor-saving.

According to some embodiments of the present invention, a frame is included, and also includes the pressure roller pressurizing structure as described above.

By adopting the above solution, the processing requirements and manufacturing costs of the frame are reduced, and the frame can meet the requirements of structural strength without adopting an integrated process, making the assembly of the pressure roller easier.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of an existing pressurizing structure and a roller press;

FIG2 is a schematic diagram of the structure of Embodiment 1 of the present invention;

FIG3 is a schematic structural diagram of a locking member according to Embodiment 1 of the present invention;

FIG4 is a schematic structural diagram of a thickness adjustment mechanism according to Embodiment 1 of the present invention;

FIG5 is a schematic diagram of the structure of the second embodiment of the present invention.

The meanings of the reference numerals are as follows:

1-roller press, 2-pressing cylinder, 21-cylinder body, 22-piston rod, 3-first pressure roller seat, 4-second pressure roller seat, 5-locking piece, 51-first locking block, 52-second locking block, 53-locking screw, 6-thickness adjustment mechanism, 61-nut, 62-lifting screw, 63-driving device, 7-first transmission assembly, 71-first active roller, 72-first driven roller, 73-first conveyor belt, 8-second transmission assembly, 81-second active roller, 82-second driven roller, 83-second conveyor belt, 84-second motor, 9-pressure roller.

Detailed ways

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

Embodiment 1

Please refer to Figure 2. The present invention discloses a roller press structure and a roller press 1 having the roller press structure. The roller press 1 has a frame, and the roller press structure includes a first roller seat 3, a second roller seat 4, a pressing cylinder 2 and two rollers 9.

Furthermore, in this embodiment, two pressure rollers 9 are relatively arranged on the frame, and a pressure roller 9 is respectively arranged below the frame and above the frame, and the upper pressure roller 9 can slide relative to the frame and can be pressed down relative to the lower pressure roller 9, wherein the first pressure roller seat 3 is arranged on the pressure roller 9 below the frame, and the second pressure roller seat 4 is arranged on the pressure roller 9 above the frame; the pressing cylinder 2 includes a cylinder body 21 and a piston rod 22, the cylinder body 21 is arranged on the first pressure roller seat 3, the piston rod 22 is slidably arranged on the cylinder body 21, the piston rod 22 extends out of the cylinder body 21 and is connected to the second pressure roller seat 4; specifically, at this time, the first pressure roller seat 3 and the cylinder body 21 are both located below the frame, and the second pressure roller seat 4 is located above the frame.

It should be noted that, in some other embodiments, the lower pressing roller 9 can be movable relative to the frame, so as to be able to perform upward pressing relative to the upper pressing roller 9, which is not specifically limited here.

Thus, through the above scheme, on the one hand, the pressing cylinder 2 can provide power for the movement of the pressing roller 9 and can apply a pressurizing pressure between the two pressing rollers 9, so that the material entering between the two pressing rollers 9 is transformed into a compacted cake under the high pressure and discharged from under the machine;

On the other hand, when the pressing cylinder 2 is pressurized, the pressurized pressure is transmitted between the first pressing roller seat 3, the second pressing roller seat 4, and the two pressing rollers 9, and the pressurized pressure will not be directly transmitted to the frame, which reduces the requirements for the frame and reduces the processing difficulty and cost of the frame; moreover, the frame does not adopt an integrated process to meet the structural strength requirements, making the assembly of the pressing rollers 9 easier.

In addition, by arranging the first pressing roller seat 3 and the second pressing roller seat 4 to bear the pressurization pressure of the pressing cylinder 2, the pressure fluctuation between the two pressing rollers 9 can be reduced, thereby improving the working stability and working efficiency of the roller press 1.

Importantly, the relative distance between the first pressure roller seat 3 and the second pressure roller seat 4 can be adjusted through the relative sliding of the piston rod 22 and the cylinder body 21, thereby adjusting the relative gap between the two pressure rollers 9. The structure is simple and the function is easy to implement.

Further, as shown in FIG2 , in this embodiment, the cylinder body 21 is partially embedded in the first roller seat 3, the piston rod 22 is slidably disposed in the cylinder body 21, and the piston rod 22 passes through the first roller seat 3 to be connected to the second roller seat 4. Such an arrangement can reduce the space occupied by the roller pressurizing structure, improve the assembly stability of the cylinder body 21, and reduce the influence of the transverse shear stress on the pressing cylinder 2. It should be noted that in some other embodiments, the cylinder body 21 can also be completely embedded in the first roller seat 3, or the cylinder body 21 can be fixed to the plane of the first roller seat 3 by bolts or screws, which is not the only limitation here.

Preferably, in this embodiment, the vertical heights of the first pressure roller seat 3 and the second pressure roller seat 4 are both smaller than the vertical height of the pressure roller 9. Such an arrangement can further reduce the space occupied by the pressure roller pressurizing structure.

Furthermore, in this embodiment, the roller press 1 includes a first transmission assembly 7 and a second transmission assembly 8 , and the material is transported through the first transmission assembly 7 and is squeezed between the first transmission assembly 7 and the second transmission assembly 8 .

Specifically, the first transmission assembly 7 includes a first motor (not shown), a first active roller 71, a first driven roller 72 and a first conveyor belt 73; the first conveyor belt 73 is wound around the first active roller 71 and the first driven roller 72; the first motor drives the first active roller 71 to rotate, and the first conveyor belt 73 is tensioned and drives the first driven roller 72 to rotate.

Specifically, the second transmission assembly 8 includes a second motor 84, a second active roller 81, a second driven roller 82 and a second conveyor belt 83; the second motor 84 drives the second active roller 81 to rotate, and the second conveyor belt 83 is wound around the second active roller 81 and the second driven roller 82. The second motor 84 drives the second active roller 81 to rotate, and the second conveyor belt 83 is tensioned and drives the second driven roller 82 to rotate.

Further, the lower pressure roller 9 is located between the first active roller 71 and the first driven roller 72, and the lower pressure roller 9 is located on the inner side of the first conveyor belt 73 and contacts the first conveyor belt 73; the upper pressure roller 9 is located between the second active roller 81 and the second driven roller 82, and the upper pressure roller 9 is located on the inner side of the second conveyor belt 83 and contacts the second conveyor belt 83;

Preferably, in this embodiment, an angle is formed between the first conveyor belt 73 and the second conveyor belt 83, and more preferably, the angle between the first conveyor belt 73 and the second conveyor belt 83 is 5° to 20°, so that the gap between the first conveyor belt 73 and the second conveyor belt 83 gradually decreases along the feeding direction of the material; when pressing the material, the piston rod 22 provides a downward pressure to the second pressure roller seat 4 so that the upper pressure roller 9 is pressed downward, and the lower pressure roller 9 provides support when the upper pressure roller 9 is pressed downward, and the material will be fully compacted during the movement.

Preferably, in this embodiment, the first conveyor belt 73 and the second conveyor belt 83 are both steel belts.

It should be noted that, in some other embodiments, the first conveyor belt 73 and the second conveyor belt 83 may also be arranged parallel to each other.

Furthermore, in the present embodiment, the piston rod 22 is detachably connected to the second roller seat 4; when the piston rod 22 is detached from the second roller seat 4, the piston rod 22 will retract into the first roller seat 3, so that a space for parts replacement can be left between the two rollers 9 to facilitate parts replacement and daily maintenance. For example, it is convenient to maintain and replace the first conveyor belt 73 and the second conveyor belt 83.

Preferably, in this embodiment, the horizontal plane of the opening of the cylinder 22 for mounting the piston rod 21 is lower than the horizontal plane of the highest point of the first roller seat 3. With this arrangement, the piston rod 21 will be completely hidden in the first roller seat 3 when it is retracted into the cylinder 21, thereby making the space for parts replacement more ample. Of course, in some other embodiments, the horizontal plane of the opening of the cylinder 22 may also be higher than or equal to the horizontal plane of the highest point of the first roller seat 3, which is not specifically limited here.

Please refer to Figures 2 and 3. Specifically, in this embodiment, the pressure roller pressure structure also includes a locking member 5 arranged on the second pressure roller seat 4. The locking member 5 is used to realize a detachable connection between the piston rod 22 and the second pressure roller seat 4. More specifically, the locking member 5 includes a locking screw 53, a first locking block 51 and a second locking block 52. The first locking block 51 and the second locking block 52 are detachably connected through the locking screw 53. With such a configuration, on the one hand, the first locking block 51 and the second locking block 52 can form a clamping fixation for the piston rod 22; on the other hand, the installation and disassembly of the split locking member 5 is more convenient. When the first conveyor belt 73 or the second conveyor belt needs to be replaced, one of the first locking block 51 and the second locking block 52 can be disassembled by loosening the locking screw 53, or the gap between the first locking block 51 and the second locking block 52 can be enlarged by loosening the locking screw 53, so that the piston rod 22 and the second pressure roller seat 4 can be separated, and the operation is labor-saving and convenient. It is understandable that in some other embodiments, the detachable connection between the piston rod 22 and the second roller seat 4 can also be but is not limited to a snap connection or a screw connection, as long as the lock between the piston rod 22 and the second roller seat 4 can be released, and this is not the only limitation made here.

Preferably, in the present embodiment, two first roller seats 3 are provided, and two second roller seats 4 are provided, and the two first roller seats 3 and the two second roller seats 4 are provided in one-to-one correspondence, and the two first roller seats 3 are respectively provided at the two ends of the lower roller 9, and the two second roller seats 4 are respectively provided at the two ends of the upper roller 9. Such a configuration, on the one hand, avoids the first roller seat 3 and the second roller seat 4 from occupying the material extrusion space of the two rollers 9, and can also better support the two rollers 9, so that the force on the two rollers 9 is more balanced, thereby improving the working efficiency and working stability of the two rollers 9 in extruding materials; on the other hand, it is convenient for the installation and maintenance of the roller pressurizing structure.

Indeed, in some other embodiments, the number of first roller seats 3 can be but is not limited to 1, 3, 4, etc., and the number of second roller seats 4 corresponding to the first roller seats 3 can be but is not limited to 1, 3, 4, etc. The first roller seats 3 and the second roller seats 4 can also be arranged at other positions of the roller 9, which is not specifically limited here.

Preferably, in this embodiment, each first pressing roller seat 3 is provided with two pressing cylinders 2, and a first pressing roller seat 3 is provided at both ends of the lower pressing roller 9, and a second pressing roller seat 4 is provided at both ends of the upper pressing roller 9, that is, the total number of pressing cylinders 2 is 4, thereby improving the control efficiency and control range of the pressing pressure between the two pressing rollers 9.

It should be noted that, in some other embodiments, the number of pressing cylinders 2 provided on each first pressing roller seat 3 may be, but is not limited to, 1, 3, 4, etc.

Please refer to Figures 2 and 4. Furthermore, in this embodiment, the roller pressure structure also includes a thickness adjustment mechanism 6, which can adjust the relative distance between the first roller seat 3 and the second roller seat 4, thereby adjusting the forming thickness of the brick blank between the two rollers 9.

For example, the thickness adjustment mechanism 6 may be, but is not limited to, a telescopic rod module, a screw nut module, etc.

Specifically, in this embodiment, the thickness adjustment mechanism 6 includes a nut 61, a lifting screw 62 and a driving device 63; the nut 61 is fixedly arranged on the first pressure roller seat 3, the lifting screw 62 is threadedly connected to the nut 61 and is sleeved on the piston rod 22, and when the lifting screw 62 rotates, it will rise and fall relative to the nut 61 due to the threaded connection between the nut 61. At this time, the lifting screw 62 can be against the second pressure roller seat 4, or the lifting screw 62 can drive the piston rod 22 to move, so that the relative distance between the first pressure roller seat 3 and the second pressure roller seat 4 can be adjusted.

It is understandable that in some other embodiments, the lifting screw 62 may not be sleeved on the piston rod 22 , and the end thereof away from the nut 61 may be able to abut against the second pressure roller seat 4 .

Preferably, in this embodiment, the driving device 63 can automatically drive the lifting screw 62 to rotate, so that the lifting screw 62 can be lifted or lowered relative to the nut 61 due to the threaded connection between the lifting screw 62 and the nut 61, thereby adjusting the distance between the first pressure roller seat 3 and the second pressure roller seat 4.

It should be noted that, in some other embodiments, the lifting screw 62 may also be driven manually.

Embodiment 2

Please refer to Fig. 5, the difference between this embodiment and the first embodiment is that the first roller seat 3 is arranged on the roller 9 above the frame, and the second roller seat 4 is arranged on the roller 9 below the frame. Correspondingly, the first roller seat 3 and the cylinder body 21 are both located above the frame, and the second roller seat 4 is located below the frame, and the piston rod 22 passes through the first roller seat 3 and is connected to the second roller seat 4. At this time, it is equivalent to that the pressing cylinder 2 provides a downward pressure to the upper roller 9 to process the material.

In summary, the roller press structure and roller press machine 1 disclosed in the present invention can at least bring the following beneficial effects:

1) When the pressing cylinder 2 is pressurized, the pressure is transmitted between the first pressing roller seat 3, the second pressing roller seat 4, and the two pressing rollers 9, and the pressure is not directly transmitted to the frame, which reduces the requirements for the frame, and reduces the processing difficulty and cost of the frame; the frame can meet the requirements of structural strength without using an integrated process, making the assembly of the pressing roller 9 easier

2) By arranging the first pressing roller seat 3 and the second pressing roller seat 4 to bear the pressure of the pressing cylinder 2, the pressure fluctuation between the two pressing rollers 9 can be reduced, thereby improving the stability and working efficiency of the roller press 1;

3) The installation and disassembly of the split locking member 5 is relatively convenient. After the locking member 5 is disassembled, the piston rod 22 can be retracted into the cylinder body 21, and a space can be left between the two pressure rollers 9 to replace the first conveyor belt 73 and the second conveyor belt 83, which is labor-saving and convenient to operate;

4) The relative distance between the first pressing roller seat 3 and the second pressing roller seat 4 can be adjusted by the thickness adjustment mechanism 6, so that the forming thickness of the brick blank between the two pressing rollers 9 can be adjusted.

The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

A roller pressurizing structure is applied to a roller press (1), wherein the roller press (1) has a frame, and is characterized in that the roller pressurizing structure comprises:

Two pressing rollers (9) are arranged relative to the frame, and at least one of the two pressing rollers (9) is slidably arranged relative to the frame;

A first pressing roller seat (3) and a second pressing roller seat (4) are arranged opposite to each other, wherein the first pressing roller seat (3) is arranged on one of the two pressing rollers (9), and the second pressing roller seat (4) is arranged on the other of the two pressing rollers (9);

The pressing cylinder (2) comprises a cylinder body (21) and a piston rod (22), wherein the cylinder body (21) is arranged on the first pressing roller seat (3), and the piston rod (22) is slidably arranged on the cylinder body (21), and the piston rod (22) extends out of the cylinder body (21) and is connected to the second pressing roller seat (4) to adjust the relative gap between the two pressing rollers (9) and provide a pressing pressure to the two pressing rollers (9).
A roller pressure structure according to claim 1, characterized in that the cylinder body (21) is at least partially embedded in the first roller seat (3), and the piston rod (22) passes through the first roller seat (3) to be connected to the second roller seat (4).
A pressure roller pressing structure according to claim 2, characterized in that the piston rod (22) and the second pressure roller seat (4) are detachably connected;

When the piston rod (22) and the second pressure roller seat (4) are disassembled, the piston rod (22) is retracted into the first pressure roller seat (3) to form a space for replacing parts.
According to a roller pressurizing structure as described in claim 3, it is characterized in that the roller pressurizing structure also includes a locking piece (5) arranged on the second roller seat (4), and the piston rod (22) is detachably connected to the second roller seat (4) through the locking piece (5); the locking piece (5) includes a first locking block (51) and a second locking block (52), and the first locking block (51) and the second locking block (52) are detachably connected to each other, and the first locking block (51) and the second locking block (52) form a clamping fixation for the piston rod (22).
A pressure roller pressurizing structure according to claim 1, characterized in that the first pressure roller seat (3) and the second pressure roller seat (4) are respectively arranged at the ends of the two pressure rollers (9).
The pressure roller pressing structure according to claim 1 is characterized in that at least two first pressure roller seats (3) are provided, and at least two second pressure roller seats (4) are provided;

At least two of the first pressing roller seats (3) are respectively arranged on both sides of one of the pressing rollers (9);

At least two of the second pressing roller seats (4) are respectively arranged on both sides of another pressing roller (9).
A pressure roller pressing structure according to any one of claims 1 to 6, characterized in that the pressure roller pressing structure also includes a thickness adjustment mechanism (6), and the thickness adjustment mechanism (6) can adjust the relative distance between the first pressure roller seat (3) and the second pressure roller seat (4).
The pressure roller pressing structure according to claim 7 is characterized in that the thickness adjustment mechanism (6) comprises a nut (61) and a lifting screw (62);

The nut (61) is arranged on the first pressure roller seat (3), and the lifting screw (62) is connected to the second pressure roller seat (4) and is screwed to the nut (61); or

The nut (61) is arranged on the second pressure roller seat (4), and the lifting screw (62) is connected to the first pressure roller seat (3) and is screwed to the nut (61).
According to the pressure roller pressing structure of claim 8, it is characterized in that the thickness adjustment mechanism (6) also includes a driving device (63), and the driving device (63) drives the lifting screw (62) to rotate and lift.
A roller press (1), characterized in that it comprises a frame and also comprises a roller press structure as described in any one of claims 1 to 9.