Road maintenance device and use method

Abstract

The invention discloses a road maintenance device and a use method, and relates to the technical field of road maintenance. Comprising a vehicle body, a spreading mechanism is arranged at the front end of the vehicle body, and the spreading mechanism comprises a stock bin installed on the vehicle body through a supporting frame; the material frame is fixed to the front end of the vehicle body through a support and located below the output end of the stock bin; the swing arm frame is installed on the outer wall of one side of the material frame, a plurality of swing arms distributed at equal intervals are rotatably installed on the swing arm frame, and rollers are installed at one ends of the swing arms; a shifting rail is installed on one side of the shifting frame, the idler wheels slide in the shifting rail, and a guide plate is installed on one side of the material frame. By arranging the vehicle body, the material frame, the swing arms and other structures, laying materials can be output through the material bin and enter the material frame, the laying materials leak out through the strip-shaped opening based on the movement of the vehicle body, the laying effect is achieved, during the period, the pushing assembly pushes the shifting frame, then the swing arms are driven to swing, the auxiliary laying purpose is achieved, and the laying effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of highway maintenance, and in particular to a highway maintenance and repair device and a use method thereof. Background Art

[0002] In the field of highway maintenance and repair, pavement repair and paving operations are crucial for ensuring road safety and extending road service life. Traditional highway maintenance and repair methods often rely on manual or simple mechanical equipment for material placement. These methods suffer from low efficiency, inconsistent paving quality, high labor intensity, and harsh working environments. With increasing traffic volume and higher road maintenance requirements, higher demands are being placed on the automation level, paving accuracy, and operational efficiency of highway maintenance and repair equipment.

[0003] In the prior art, although some automated or semi-automated road maintenance equipment has been developed, these devices are often complex in structure, inconvenient to operate, and difficult to achieve efficient and uniform paving effects in actual applications.

[0004] After searching, the Chinese patent application number CN202320775125.6 discloses an asphalt paving device for asphalt construction, including a storage box, a frame and a heating stirring blade. A spreading plate is installed on one side of the bottom end of the frame, and an adjustment structure is provided on one side of the top end of the frame. The adjustment structure includes a movable block, a screw, a lifting plate, a positioning rod and a rotary handle. The screw is installed on one side of the top end of the frame, and the top end of the screw is provided with a rotary handle. A movable block is installed on the outside of the screw, and a lifting plate is installed on one side of the movable block. A positioning rod is installed on one side of the inside of the lifting plate. A storage box is installed on the top end of the frame, and a drive motor is installed on the top end of the storage box.

[0005] After searching, the Chinese patent application number CN202221359782.4 discloses a colored asphalt paving device, which relates to the technical field of municipal road construction equipment and solves the problem that asphalt paving vehicles in the prior art are not suitable for colored asphalt paving work; the paving device includes a vehicle body and a cab located at the front of the vehicle, wherein a U-shaped frame and a roller are installed at the rear of the vehicle; a fixed base, a storage bin and a lifting mechanism arranged on the left and right sides of the fixed base are provided in the middle of the vehicle body, and the top of the fixed base and the bottom of the storage bin are arranged inclined downward from the front to the rear of the vehicle; a discharge port is provided at the lower part of the side wall of the storage bin near the rear of the vehicle, and an insert plate is provided on the inner side of the side wall of the storage bin near the rear of the vehicle, the width of the insert plate is larger than that of the discharge port, and the upper end of the insert plate passes through the slot provided at the top of the storage bin and is connected to the lifting mechanism.

[0006] The asphalt paving device and the colored asphalt paving device in the above patents both have the following deficiencies: although they have paving capabilities, they cannot well guarantee the uniformity of paving and need to be improved. Summary of the Invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a road maintenance and repair device and a method of use.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: A road maintenance and repair device includes a vehicle body, a paving mechanism is provided at the front end of the vehicle body, and the paving mechanism includes: Silo, which is installed on the vehicle body through a support frame; The material frame is fixed to the front end of the vehicle body through a bracket and is located below the output end of the silo; The swing arm frame is installed on the outer wall of one side of the material frame. A plurality of equally spaced swing arms are rotatably installed on the swing arm frame, and a roller is installed at one end of the swing arm; A shifting frame, one side of which is provided with a shifting rail, in which the roller slides, and one side of the material frame is provided with a guide plate, on which the shifting frame slides; A pushing component is used to push the shifting frame to move back and forth; A strip opening is provided on one side of the material frame close to the swing arm frame, and the swing arms are distributed on one side of the strip opening.

[0009] When in use, the paving material is output through the hopper and enters the material frame. Based on the movement of the vehicle body, the paving material leaks out through the strip opening to achieve the paving effect. During this period, the pushing component pushes the shifting frame, which in turn drives the swing arms to swing, thereby achieving the purpose of auxiliary paving and improving the paving effect.

[0010] Preferably, a convex ball is fixed to one end of the shifting frame, and the other end of the shifting frame is connected to the guide plate via a first spring; A side bracket is fixed to the side of the material frame, a horizontal slide is slidably connected to the side bracket, a corrugated plate is fixed to the outer wall of one side of the horizontal slide, and the convex ball is located on the movement path of the corrugated plate. The convex ball slides on the side of the corrugated plate based on the action of the first spring; A ball rod is fixed on the corrugated plate, a rotating seat is coaxially mounted on the wheel of the vehicle body, a dial wheel is mounted on one end of the rotating seat, and the dial wheel is adapted to the ball rod; A guide frame is fixed on one side of the silo, and a horizontal slide rod is slidably connected inside the guide frame. The horizontal slide rod and the horizontal slide rod are connected by a vertical frame. One end of the horizontal slide rod is slidably connected to a mounting rod, and the mounting rod and the horizontal slide rod are connected by a second spring. A positioning assembly for fixing the mounting rod is provided on the vehicle body.

[0011] Preferably, the positioning component includes: A first positioning frame, the first positioning frame is installed on an outer wall of one side of the vehicle body; The second positioning frame is slidably connected to the first positioning frame, and the mounting rod is provided with evenly distributed positioning holes. One end of the second positioning frame is detachably inserted into the positioning hole, and the second positioning frame and the first positioning frame are connected by a third spring.

[0012] Preferably: an arc-shaped cover is fixed at the output end of the silo, a fixing frame is provided on the side of the arc-shaped cover, a material roller is provided in the arc-shaped cover, the material roller is rotatably mounted on the fixing frame through an axis, and a rotation control part for controlling the movement of the material roller is provided on the side of the silo.

[0013] Preferably, the rotation control unit includes: A rotation drive motor is mounted on a fixed frame; The output end of the rotation drive motor is connected to the shaft of the material roller through the gear transmission assembly.

[0014] Preferably, an electric telescopic cylinder is installed on the outer wall of one side of the silo, and the output end of the electric telescopic cylinder is fixed on a fixing frame.

[0015] Preferably, evenly distributed ribs are provided on the circumferential outer wall of the material roller.

[0016] Preferably, a lifting control unit is provided at the rear of the vehicle body, a lifting frame is installed on the lifting control unit, and a pressure roller assembly is installed on the lifting frame.

[0017] Preferably, the lifting control unit includes a mounting frame, which is mounted on the rear of the vehicle body. A hydraulic cylinder is mounted on the mounting frame. The lifting frame is connected to the inner wall of the mounting frame for sliding up and down movement, and an output end of the hydraulic cylinder is fixed on the lifting frame.

[0018] Preferably, the method for using the maintenance device comprises the following steps: S1: Move the vehicle body to the location where construction is required; S2: Install the corresponding positioning hole of the mounting rod into the second positioning frame, so that the ball head rod fits against the outer wall of the thumb wheel, and the second spring is in a stretched state; S3: Pour the materials to be laid into the silo; S4: Based on the rotation of the drive motor, the material is evenly fed into the material frame; S5: The vehicle body moves, and the material in the material frame leaks out from the strip opening for laying. At the same time, the thumbwheel periodically moves the ball head rod, causing the corrugated plate to reciprocate, and finally drives the swing arm to swing, thus assisting in paving the material flat; S6: The hydraulic cylinder adjusts the position of the lifting frame and uses the pressure roller assembly to assist in compacting the material.

[0019] The beneficial effects of the present invention are: The present invention is capable of outputting paving materials through the silo by setting structures such as the vehicle body, material frame, and swing arms. The paving materials enter the material frame, and based on the movement of the vehicle body, the paving materials leak out through the strip-shaped opening to achieve the paving effect. During this period, the pushing component pushes the shifting frame, which in turn drives the swing arms to swing, thereby achieving the purpose of auxiliary paving and improving the paving effect.

[0020] The present invention provides structures such as a thumbwheel and a ball rod, and can drive the thumbwheel to rotate based on the rotation of the wheel, and then move the ball rod, so that the horizontal slide can slide in the side bracket under the deformation cooperation of the second spring, and then the reciprocating motion of the thumbwheel can be controlled through the cooperation of the corrugated plate, the convex ball and the first spring, without the need for an additional power source.

[0021] By setting a positioning component, the present invention can install the second positioning frame in different positioning holes according to needs, thereby adjusting the tightness of the second spring or adjusting the initial position of the horizontal slide bar; changing the amplitude of the thumb wheel to move the ball head rod, or completely separating the thumb wheel from the ball head rod according to needs, thereby improving the flexibility of use.

[0022] The present invention provides a material roller and other structures to facilitate uniform material output and more uniform paving; and provides an electric telescopic cylinder and other structures to adjust the distance between the material roller and the arc cover, thereby adjusting the material discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a highway maintenance and repair device proposed by the present invention; Figure 2 This is a schematic structural diagram of a highway maintenance and repair device proposed by the present invention from another angle; Figure 3 This is a structural diagram of a mounting rod and a horizontal sliding rod of a highway maintenance and repair device proposed by the present invention; Figure 4 This is a structural diagram of a material roller and a material frame of a highway maintenance and repair device proposed by the present invention; Figure 5 This is a schematic structural diagram of a cross-section of a curved cover of a highway maintenance and repair device proposed by the present invention; Figure 6 This is a structural schematic diagram of a swing arm and a swing arm frame of a highway maintenance and repair device proposed by the present invention.

[0024] In the figure: 1 car body, 2 hydraulic cylinder, 3 mounting frame, 4 lifting frame, 5 pressure roller assembly, 6 wheel, 7 rotating seat, 8 horizontal slide, 9 horizontal slide bar, 10 first positioning frame, 11 hopper, 12 rotation drive motor, 13 material frame, 14 shifting frame, 15 electric telescopic cylinder, 16 guide frame, 17 support frame, 18 second spring, 19 third spring, 20 second positioning frame, 21 positioning hole, 22 mounting rod, 23 shifting wheel, 24 ball head rod, 25 corrugated plate, 26 fixing frame, 27 side bracket, 28 gear transmission assembly, 29 material roller, 30 arc cover, 31 vertical frame, 32 ribs, 33 guide plate, 34 first spring, 35 roller, 36 shifting rail, 37 convex ball, 38 swing arm, 39 swing arm frame. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention. Example

[0027] A road maintenance and repair device, such as Figure 1-6 As shown, it includes a vehicle body 1, and a material spreading mechanism is provided at the front end of the vehicle body 1. The material spreading mechanism includes: The silo 11 is mounted on the vehicle body 1 via a support frame 17; The material frame 13 is fixed to the front end of the vehicle body 1 through a bracket. The material frame 13 is located below the output end of the silo 11; A swing arm frame 39 is mounted on the outer wall of one side of the material frame 13. A plurality of equally spaced swing arms 38 are rotatably mounted on the swing arm frame 39. A roller 35 is mounted on one end of the swing arm 38. The shift frame 14 has a shift rail 36 installed on one side of the shift frame 14, and the roller 35 slides in the shift rail 36. A guide plate 33 is installed on one side of the material frame 13, and the shift frame 14 slides on the inner wall of the guide plate 33; A pushing assembly, which is used to push the shifting frame 14 to reciprocate; The material frame 13 is provided with a strip-shaped opening on one side close to the swing arm frame 39, and the swing arm 38 is distributed on one side of the strip-shaped opening; By setting up structures such as the vehicle body 1, the material frame 13, and the swing arm 38, paving materials, such as asphalt, can be output through the material bin 11. The paving materials enter the material frame 13. Based on the movement of the vehicle body 1, the paving materials leak out through the strip-shaped opening to achieve the paving effect. During this period, the pushing component pushes the shifting frame 14, which in turn drives each swing arm 38 to swing, thereby achieving the purpose of auxiliary paving and improving the paving effect.

[0028] In order to facilitate the dial frame 14; Figure 6 As shown, a convex ball 37 is fixed to the end of the shifting frame 14, and the other end of the shifting frame 14 is connected to the guide plate 33 through a first spring 34; A side bracket 27 is fixed to the side of the material frame 13. A horizontal slide 8 is slidably connected to the side bracket 27. A corrugated plate 25 is fixed to the outer wall of one side of the horizontal slide 8. The convex ball 37 is located in the movement path of the corrugated plate 25. The convex ball 37 slides on the side of the corrugated plate 25 based on the force of the first spring 34. A ball rod 24 is fixed on the corrugated plate 25, and a rotating seat 7 is coaxially mounted on the wheel 6 of the vehicle body 1. A dial wheel 23 is mounted on one end of the rotating seat 7, and the dial wheel 23 is adapted to the ball rod 24; A guide frame 16 is fixed to one side of the silo 11, and a horizontal slide bar 9 is slidably connected to the guide frame 16. The horizontal slide bar 9 and the horizontal slide bar 8 are connected by a vertical frame 31. One end of the horizontal slide bar 9 is slidably connected to a mounting rod 22. The mounting rod 22 and the horizontal slide bar 9 are connected by a second spring 18. A positioning assembly for fixing the mounting rod 22 is provided on the vehicle body 1; By providing structures such as the dial wheel 23 and the ball head rod 24, the wheel 6 can rotate to drive the dial wheel 23 to rotate, and then the ball head rod 24 can be moved, so that the horizontal slide 8 can slide in the side bracket 27 under the deformation cooperation of the second spring 18, and then the reciprocating motion of the dial frame 14 can be controlled through the cooperation of the corrugated plate 25, the convex ball 37 and the first spring 34 without the need for an additional power source.

[0029] In order to facilitate the adjustment of the structural position; Figure 1 、 Figure 3 As shown, the positioning component includes: A first positioning frame 10, the first positioning frame 10 is installed on the outer wall of one side of the vehicle body 1; The second positioning frame 20 is slidably connected to the first positioning frame 10. The mounting rod 22 is provided with evenly distributed positioning holes 21. One end of the second positioning frame 20 is detachably inserted into the positioning hole 21. The second positioning frame 20 and the first positioning frame 10 are connected by a third spring 19. By setting up a positioning component, the second positioning frame 20 can be installed in different positioning holes 21 according to needs, so as to adjust the tightness of the second spring 18 or adjust the initial position of the horizontal slide bar 9; change the amplitude of the dial wheel 23 to move the ball head rod 24, or according to needs, completely separate the dial wheel 23 and the ball head rod 24, thereby improving the flexibility of use.

[0030] In order to better output materials; Figure 4 、 Figure 5 As shown, an arc-shaped cover 30 is fixed to the output end of the silo 11, a fixing frame 26 is provided on the side of the arc-shaped cover 30, a material roller 29 is provided in the arc-shaped cover 30, and the material roller 29 is rotatably mounted on the fixing frame 26 through an axis. A rotation control part for controlling the movement of the material roller 29 is provided on the side of the silo 11; By providing structures such as the material roller 29, the material can be evenly output, which is conducive to more uniform laying.

[0031] In order to facilitate the control of the rotation of the material roller 29; Figure 4 As shown, the rotation control unit includes: The rotation drive motor 12 is mounted on the fixing frame 26; The output end of the rotation drive motor 12 is connected to the shaft of the material roller 29 through the gear transmission assembly 28 .

[0032] In order to facilitate the adjustment of the discharging effect; Figure 4 As shown, an electric telescopic cylinder 15 is installed on the outer wall of one side of the silo 11, and the output end of the electric telescopic cylinder 15 is fixed on the fixing frame 26; By setting the electric telescopic cylinder 15 and other structures, when the electric telescopic cylinder 15 is working, the fixing frame 26 on which the material roller 29 is installed can be pushed along the direction of movement of the output end of the electric telescopic cylinder 15. Figure 4 、 Figure 5 , so that the relative position of the material roller 29 and the arc cover 30 changes, so that the distance between the material roller 29 and the arc cover 30 can be adjusted, thereby adjusting the discharge effect.

[0033] In order to better output materials; Figure 4 、 Figure 5 As shown, the outer circumferential wall of the material roller 29 is provided with evenly distributed ribs 32 .

[0034] In order to facilitate the auxiliary rolling; Figure 1 As shown, a lifting control unit is provided at the rear of the vehicle body 1 , a lifting frame 4 is installed on the lifting control unit, and a pressure roller assembly 5 is installed on the lifting frame 4 .

[0035] In order to facilitate the auxiliary rolling; Figure 1As shown, the lifting control unit includes a mounting frame 3, which is installed at the rear of the vehicle body 1. A hydraulic cylinder 2 is installed on the mounting frame 3. A lifting frame 4 is connected to the inner wall of the mounting frame 3 for sliding up and down. The output end of the hydraulic cylinder 2 is fixed to the lifting frame 4. By providing structures such as the lifting control unit and the pressure roller assembly 5 , it is convenient to control the height of the pressure roller assembly 5 based on the lifting control unit, and to flatten the paved materials through the pressure roller assembly 5 . Example

[0036] A method for using a highway maintenance and repair device, such as Figure 1-6 As shown, this embodiment, based on embodiment 1, includes the following steps: S1: Move the vehicle body 1 to the location where construction is required; S2: Install the mounting rod 22 into the corresponding positioning hole 21 in the second positioning frame 20, so that the ball head rod 24 fits against the outer wall of the dial wheel 23, so that the second spring 18 is in a stretched state; S3: Pour the material to be laid into the silo 11; S4: Based on the rotation of the drive motor 12, the material is evenly fed into the material frame 13; S5: The vehicle body 1 moves, and the material in the material frame 13 leaks out from the strip opening and is laid. At the same time, the thumbwheel 23 periodically moves the ball rod 24, causing the corrugated plate 25 to reciprocate, and finally drives the swing arm 38 to swing, thereby assisting in paving the material. S6: The hydraulic cylinder 2 adjusts the position of the lifting frame 4 and uses the pressing roller assembly 5 to assist in compacting the material.

[0037] The above description is only a preferred specific embodiment of the present invention. For parts that are not disclosed in detail, such as specific circuit connection methods or instrument models, those skilled in the art can use conventional technical means to implement them, so they are not described in detail.

Claims

1. A road maintenance and repair device, characterized in that: The invention comprises a vehicle body (1), wherein a material spreading mechanism is provided at the front end of the vehicle body (1), and the material spreading mechanism comprises a silo (11), a material frame (13), a swing arm frame (39), a shifting frame (14) and a pushing assembly: the silo (11) is mounted on the vehicle body (1) through a support frame (17); the material frame (13) is fixed to the front end of the vehicle body (1) through a bracket, and the material frame (13) is located below the output end of the silo (11); the swing arm frame (39) is mounted on an outer wall of one side of the material frame (13), and a plurality of swing arms (38) equidistantly distributed are rotatably mounted on the swing arm frame (39), and a roller (35) is mounted on one end of the swing arm (38); a shifting rail (36) is mounted on one side of the shifting frame (14), and the roller (35) slides in the shifting rail (36); a guide plate (33) is mounted on one side of the material frame (13), and the shifting frame (14) slides on the inner wall of the guide plate (33); and the pushing assembly is used to push the shifting frame (14) to reciprocate; A strip-shaped opening is provided on one side of the material frame (13) close to the swing arm frame (39), and the swing arm (38) is distributed on one side of the strip-shaped opening.

2. A road maintenance and repair device according to claim 1, characterized in that: A convex ball (37) is fixed to the end of the shifting frame (14), and the other end of the shifting frame (14) is connected to the guide plate (33) via a first spring (34); A side bracket (27) is fixed to the side of the material frame (13), a horizontal slide (8) is slidably connected inside the side bracket (27), a corrugated plate (25) is fixed to the outer wall of one side of the horizontal slide (8), and a convex ball (37) is located on the movement path of the corrugated plate (25). Based on the action force of the first spring (34), the convex ball (37) slides on the side of the corrugated plate (25); A ball rod (24) is fixed on the corrugated plate (25), a rotating seat (7) is coaxially mounted on the wheel (6) of the vehicle body (1), a dial wheel (23) is mounted on one end of the rotating seat (7), and the dial wheel (23) is adapted to the ball rod (24); A guide frame (16) is fixed on one side of the silo (11), a horizontal slide bar (9) is slidably connected in the guide frame (16), the horizontal slide bar (9) and the horizontal slide bar (8) are connected via a vertical frame (31), one end of the horizontal slide bar (9) is slidably connected to a mounting rod (22), the mounting rod (22) and the horizontal slide bar (9) are connected via a second spring (18), and a positioning assembly for fixing the mounting rod (22) is provided on the vehicle body (1).

3. A road maintenance and repair device according to claim 2, characterized in that: The positioning component includes: A first positioning frame (10), the first positioning frame (10) is installed on an outer wall of one side of the vehicle body (1); The second positioning frame (20) is slidably connected to the first positioning frame (10), and the mounting rod (22) is provided with evenly distributed positioning holes (21). One end of the second positioning frame (20) is detachably inserted into the positioning hole (21), and the second positioning frame (20) and the first positioning frame (10) are connected via a third spring (19).

4. A road maintenance and repair device according to claim 3, characterized in that: An arc-shaped cover (30) is fixed to the output end of the silo (11), a fixing frame (26) is provided on the side of the arc-shaped cover (30), a material roller (29) is provided in the arc-shaped cover (30), and the material roller (29) is rotatably mounted on the fixing frame (26) through an axis. A rotation control unit for controlling the movement of the material roller (29) is provided on the side of the silo (11).

5. A road maintenance and repair device according to claim 4, characterized in that: The rotation control unit includes: A rotation drive motor (12), wherein the rotation drive motor (12) is mounted on a fixing frame (26); The output end of the rotation drive motor (12) is connected to the shaft of the material roller (29) through the gear transmission assembly (28).

6. A road maintenance and repair device according to claim 5, characterized in that: An electric telescopic cylinder (15) is installed on an outer wall of one side of the silo (11), and an output end of the electric telescopic cylinder (15) is fixed on a fixing frame (26).

7. A road maintenance and repair device according to claim 6, characterized in that: Evenly distributed ribs (32) are provided on the circumferential outer wall of the material roller (29).

8. A road maintenance and repair device according to claim 3, characterized in that: The rear portion of the vehicle body (1) is provided with a lifting control unit, a lifting frame (4) is mounted on the lifting control unit, and a pressure roller assembly (5) is mounted on the lifting frame (4).

9. A road maintenance and repair device according to claim 8, characterized in that: The lifting control unit includes a mounting frame (3), the mounting frame (3) is mounted on the rear of the vehicle body (1), a hydraulic cylinder (2) is mounted on the mounting frame (3), a lifting frame (4) is connected to the inner wall of the mounting frame (3) by sliding up and down, and an output end of the hydraulic cylinder (2) is fixed on the lifting frame (4).

10. A road maintenance and repair device according to any one of claims 1 to 9, characterized in that: The method for using the maintenance device comprises the following steps: S1: Move the vehicle body (1) to the location where construction is required; S2: Install the corresponding positioning hole (21) of the mounting rod (22) in the second positioning frame (20), so that the ball head rod (24) fits against the outer wall of the thumbwheel (23), so that the second spring (18) is in a stretched state; S3: Pour the material to be laid into the silo (11); S4: Based on the rotation of the driving motor (12), the material is evenly fed into the material frame (13); S5: The vehicle body (1) moves, and the material in the material frame (13) leaks out from the strip opening and is laid. At the same time, the thumbwheel (23) periodically moves the ball head rod (24), causing the corrugated plate (25) to reciprocate, and finally drives the swing arm (38) to swing, thereby assisting in paving the material; S6: The hydraulic cylinder (2) adjusts the position of the lifting frame (4) and uses the pressing roller assembly (5) to assist in compacting the material.

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