CN220904286U

CN220904286U - Paperboard compounding machine

Info

Publication number: CN220904286U
Application number: CN202322463453.5U
Authority: CN
Inventors: 田军志
Original assignee: Baoding Baijie Paper Products Co ltd
Current assignee: Baoding Baijie Paper Products Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-05-07
Anticipated expiration: 2033-09-12

Abstract

The utility model discloses a paperboard compound machine, which comprises a frame, a conveying mechanism, an extrusion mechanism and a height adjusting mechanism, wherein the conveying mechanism is arranged between a first side plate and a second side plate of the frame, supporting rods are fixed at the upper parts of two ends of the first side plate and the second side plate, a top plate is fixed at the top end of each supporting rod, the height adjusting mechanism is arranged on the top plate, and the extrusion mechanism is arranged between the conveying mechanism and the top plate; the height adjusting mechanism comprises a speed reducing motor and a first threaded rod, and the first threaded rod is arranged in the middle of the first side plate and is driven by the speed reducing motor; each supporting rod is sleeved with a sleeve in a sliding mode, a plurality of sleeves are fixedly connected to two sides of the extrusion mechanism respectively, a first thread cylinder is fixed on the extrusion mechanism, and threads of the first thread cylinder are sleeved on the first threaded rod. The paper board compounding machine can adjust the distance between the conveying mechanism and the extruding mechanism, so that the compounding machine can press paper boards with different thicknesses, and the paper board pressing effect is ensured.

Description

Paperboard compounding machine

Technical Field

The utility model relates to the technical field of paperboard processing, in particular to a paperboard compounding machine.

Background

In the corrugated board production process, in order to improve corrugated board's intensity, can bond the multilayer corrugated board together often to form compound corrugated board, traditional compound paper production technology includes compresses tightly compound process, and this process is gone on by compound cardboard compression roller hold-down mechanism, and this mechanism includes two compression rollers that set up relatively, is equipped with the clearance that supplies the compound paper material to pass through between two compression rollers, and at the during operation, compound cardboard material stacks into whole and gets into in this clearance, and two compression rollers are with compound paper material pressfitting shaping into compound paper.

The composite paperboards with different specifications have different thicknesses, meanwhile, the pressure ranges required by the lamination forming of the composite paperboards with different specifications are different, if the gap is improperly adjusted, the structure of the composite paperboards is easy to crush due to too small gap between the two press rolls, and the lamination cannot be realized due to too large gap between the two press rolls.

In the prior art, as disclosed in patent CN113787775A, the device comprises a receiving conveyor belt, and a pressing conveyor belt arranged right above the receiving conveyor belt and clung to the surface of the compounded paper board, and the device is clung to the receiving conveyor belt through the receiving conveyor belt and the pressing conveyor belt, so that the corrugated paper board and the printed paper can always keep clung state in the forward moving process, the adhesion between the corrugated paper board and the printed paper is firmer, the printed paper is less prone to falling off, and the corrugated paper board can always keep better waterproof effect.

The above-mentioned apparatus is capable of pressing the composite board, but cannot adjust the gap between the receiving conveyor belt and the pressing conveyor belt, so it is difficult to apply to composite boards of different thicknesses.

Accordingly, there is a need to develop a paperboard complex machine that addresses the above-described drawbacks.

Disclosure of utility model

The utility model aims to provide a paperboard compound machine, which can adjust the distance between a conveying mechanism and an extruding mechanism, so that the compound machine can press paperboards with different thicknesses, and the paperboard pressing effect is ensured.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model relates to a paperboard compound machine, which comprises a frame, a conveying mechanism, an extrusion mechanism and a height adjusting mechanism, wherein the conveying mechanism is arranged between a first side plate and a second side plate of the frame and is used for conveying a paperboard, supporting rods are fixed at the upper parts of two ends of the first side plate and the second side plate, a top plate is horizontally fixed at the top end of each supporting rod, the height adjusting mechanism is arranged on the top plate, the extrusion mechanism is arranged between the conveying mechanism and the top plate, and the height adjusting mechanism can drive the extrusion mechanism to move up and down; the height adjusting mechanism comprises a speed reducing motor and a first threaded rod, the first threaded rod is arranged in the middle of the first side plate, the bottom end of the first threaded rod is rotationally connected to the first side plate, the upper part of the first threaded rod is rotationally connected to the top plate, and the top end of the first threaded rod penetrates through the top plate and then is driven by the speed reducing motor; each supporting rod is sleeved with a sleeve in a sliding manner, a plurality of sleeves are fixedly connected to two sides of the extrusion mechanism respectively, one side, close to the first threaded rod, of the extrusion mechanism is fixedly provided with a first threaded cylinder corresponding to the first threaded rod, the first threaded cylinder is sleeved on the first threaded rod in a threaded manner, and the first threaded cylinder moves up and down through rotation of the first threaded rod.

Further, the device also comprises a fixing frame, wherein the fixing frame is arranged on the top plate, and the speed reducing motor is arranged on the fixing frame and is positioned right above the first threaded rod; the height adjusting mechanism further comprises a driving wheel, a driven wheel, a second threaded rod and a synchronous transmission belt, the top end of the driving wheel is connected with the output end of the speed reducing motor, the bottom end of the driving wheel is connected with the top end of the first threaded rod, the second threaded rod is arranged in the middle of the second side plate, the bottom end of the second threaded rod is rotationally connected to the second side plate, the upper portion of the second threaded rod is rotationally connected to the top plate, the top end of the second threaded rod penetrates through the top plate and then is connected with the bottom end of the driven wheel, the driving wheel and the driven wheel are in transmission connection through the synchronous transmission belt, a second threaded cylinder corresponding to the second threaded rod is fixed on one side of the extrusion mechanism, the second threaded cylinder is in threaded sleeve connection with the second threaded rod, and the second threaded cylinder is driven to move up and down through rotation of the second threaded rod.

Further, the extrusion mechanism comprises an extrusion roller, a driving roller, a driven roller, an extrusion transmission belt, an extrusion transmission motor, a first mounting plate and a second mounting plate, wherein the driven roller, the extrusion roller and the driving roller which are uniformly arranged are sequentially connected between the first mounting plate and the second mounting plate in a rotating manner from left to right, the extrusion rollers are arranged on the same horizontal plane, the driving roller and the driven roller are arranged above the extrusion rollers, the extrusion transmission motor is arranged at the right end of the first mounting plate and is used for driving the driving roller, and the extrusion rollers, the driving roller and the driven roller are in transmission connection through the extrusion transmission belt; the sleeves are symmetrically fixed on the outer sides of the first mounting plate and the second mounting plate respectively, the first thread cylinder is fixed on the outer side of the first mounting plate, and the second threaded rod is vertically arranged on the outer side of the second mounting plate.

Further, still include straining device, straining device includes pull-down subassembly and take-up pulley, pull-down subassembly is provided with two sets of and the symmetry is fixed first mounting panel with the outside of second mounting panel, take-up pulley rotates to be connected two pull-down subassembly's upper portion just is located the top of extrusion drive belt, through pull-down subassembly downward pulling take-up pulley makes extrusion drive belt keeps tensioning.

Further, each group of pull-down assemblies comprises a limiting cylinder, limiting plates, tension springs and limiting rods, wherein the limiting plates are slidably connected in the inner cavity of the limiting cylinder, the bottom ends of the tension springs are fixed at the bottom and the top ends of the inner cavity of the limiting cylinder, the bottom ends of the limiting rods are fixedly connected with the top ends of the limiting plates, the top ends of the limiting rods penetrate out of the top wall of the limiting cylinder and then extend upwards, the tensioning wheels are rotatably connected to the upper parts of the outward extending parts of the limiting rods, and the limiting cylinders are fixedly connected with the first mounting plates or the second mounting plates.

Further, the cross section of the limiting rod is rectangular.

Compared with the prior art, the utility model has the beneficial technical effects that:

According to the paperboard compound machine, the height adjusting mechanism is arranged, so that the extruding mechanism can be driven to move upwards or downwards, and the distance between the extruding mechanism and the conveying mechanism is adjusted, so that the paperboard compound machine can press paperboards with different thicknesses, the pressing effect is guaranteed, and the pressing efficiency is improved.

In addition, by arranging the second threaded rod and combining the first threaded rod, the two sides of the extrusion mechanism are driven simultaneously, and the stability of the extrusion mechanism in the upward or downward moving process is improved; through reasonable arrangement of the positions of the driving roller and the driven roller, the paperboard can smoothly enter between the extrusion mechanism and the conveying mechanism; by arranging the tensioning mechanism, the extrusion driving belt can always maintain a tensioning state, the pressing effect is prevented from being influenced by the looseness of the extrusion driving belt, and the pressing efficiency is improved; by arranging the tension spring, downward tension can be generated on the tension pulley, so that the tension pulley always tightens the extrusion driving belt; through setting up the cross section and being the rectangle gag lever post, can avoid the gag lever post to take place to rotate, guarantee straining device's stability.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a schematic diagram of a front view of a paperboard compounding machine according to the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional front view of the paperboard compounding machine of the present utility model;

FIG. 3 is a schematic top cross-sectional view of the paperboard compounding machine of the present utility model;

FIG. 4 is a schematic left-hand structural view of the paperboard compounding machine of the present utility model;

Fig. 5 is a schematic left-hand structural view of a pull-down assembly of the paperboard complex machine of the utility model.

Reference numerals illustrate: 1. a frame; 101. a first side plate; 102. a second side plate; 2. a conveying mechanism; 201. a conveying motor; 202. a conveyor belt; 3. an extrusion mechanism; 301. a squeeze roll; 302. a drive roll; 303. driven roller; 304. extruding the transmission belt; 305. an extrusion conveying motor; 306. a first mounting plate; 307. a second mounting plate; 4. a height adjusting mechanism; 401. a speed reducing motor; 402. a driving wheel; 403. driven wheel; 404. a first threaded rod; 405. a second threaded rod; 406. a synchronous drive belt; 5. a support rod; 6. a top plate; 7. a fixing frame; 8. a sleeve; 9. a first thread cylinder; 10. a second thread cylinder; 11. a tensioning mechanism; 1101. a limiting cylinder; 1102. a limiting plate; 1103. a tension spring; 1104. a limit rod; 1105. tensioning wheel.

Detailed Description

The utility model aims at providing a paperboard compounding machine which can adjust the distance between a conveying mechanism and an extruding mechanism, so that the compounding machine can press paperboards with different thicknesses, and the paperboard pressing effect is ensured.

The following description of the embodiments of the present utility model will be made in detail with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to the drawings, FIG. 1 is a schematic view of the structure of a paperboard complex machine according to the present utility model; FIG. 2 is a schematic diagram of a cross-sectional front view of the paperboard compounding machine of the present utility model; FIG. 3 is a schematic top cross-sectional view of the paperboard compounding machine of the present utility model; FIG. 4 is a schematic left-hand structural view of the paperboard compounding machine of the present utility model; fig. 5 is a schematic left-hand structural view of a pull-down assembly of the paperboard complex machine of the utility model.

In a specific embodiment, as shown in fig. 1, 2 and 4, the device comprises a frame 1, a conveying mechanism 2, an extrusion mechanism 3 and a height adjusting mechanism 4, wherein the conveying mechanism 2 is arranged between a first side plate 101 and a second side plate 102 of the frame 1 and is used for conveying paperboards, supporting rods 5 are fixed at the upper parts of two ends of the first side plate 101 and the second side plate 102, one supporting rod 5 is fixed at each specific end, four supporting rods 5 are arranged, top ends of the four supporting rods 5 are horizontally fixed with a top plate 6, the height adjusting mechanism 4 is arranged on the top plate 6, the extrusion mechanism 3 is arranged between the conveying mechanism 2 and the top plate 6, and the height adjusting mechanism 4 can drive the extrusion mechanism 3 to move up and down; the height adjusting mechanism 4 comprises a speed reducing motor 401 and a first threaded rod 404, the first threaded rod 404 is arranged in the middle of the first side plate 101, the bottom end of the first threaded rod 404 is rotationally connected to the first side plate 101, the upper part of the first threaded rod is rotationally connected to the top plate 6, and the top end of the first threaded rod penetrates out of the top plate 6 and then is driven by the speed reducing motor 401; each supporting rod 5 is slidably sleeved with one sleeve 8, four sleeves 8 are respectively fixedly connected to two sides of the extrusion mechanism 3, one side, close to the first threaded rod 404, of the extrusion mechanism 3 is fixedly provided with a first threaded cylinder 9 corresponding to the first threaded rod 404, the first threaded cylinder 9 is in threaded sleeve connection with the first threaded rod 404, and the first threaded cylinder 9 moves up and down through rotation of the first threaded rod 404.

Through setting up high adjustment mechanism 4, can drive extrusion mechanism 3 upwards or the downward movement, and then adjust the interval between extrusion mechanism 3 and the conveying mechanism 2 to guarantee that the compound machine can pressfitting the cardboard of different thickness, guaranteed the pressfitting effect, improved pressfitting efficiency.

In a specific embodiment of the present utility model, as shown in fig. 1 to 3, the present utility model further comprises a fixing frame 7, wherein the fixing frame 7 is detachably mounted on the top plate 6, and the gear motor 401 is mounted on the fixing frame 7 and is located right above the first threaded rod 404; the height adjusting mechanism 4 further comprises a driving wheel 402, a driven wheel 403, a second threaded rod 405 and a synchronous transmission belt 406, the top end of the driving wheel 402 is connected with the output end of the speed reducing motor 401, the bottom end of the driving wheel is connected with the top end of the first threaded rod 404, the second threaded rod 405 is arranged in the middle of the second side plate 102, the bottom end of the second threaded rod 405 is rotationally connected to the second side plate 102, the upper part of the second threaded rod 405 is rotationally connected to the top plate 6, the top end of the second threaded rod passes through the top plate 6 and then is connected with the bottom end of the driven wheel 403, the driving wheel 402 and the driven wheel 403 are in transmission connection through the synchronous transmission belt 406, a second threaded cylinder 10 corresponding to the second threaded rod 405 is fixed on one side of the extruding mechanism 3 close to the second threaded rod 405, the second threaded cylinder 10 is in threaded sleeve joint with the second threaded rod 405, and the second threaded cylinder 10 is driven to move up and down through the rotation of the second threaded rod 405.

By arranging the second threaded rod 405 and combining the first threaded rod 404, the driving of both sides of the pressing mechanism 3 is realized at the same time, and the stability of the pressing mechanism 3 in the upward or downward moving process is improved.

In a specific embodiment of the present utility model, as shown in fig. 1 to 4, the extruding mechanism 3 includes an extruding roller 301, a driving roller 302, a driven roller 303, an extruding driving belt 304, an extruding and conveying motor 305, a first mounting plate 306 and a second mounting plate 307, wherein the driven roller 303, a plurality of extruding rollers 301 and the driving roller 302 which are uniformly arranged are sequentially connected between the first mounting plate 306 and the second mounting plate 307 in a rotating manner from left to right, the plurality of extruding rollers 301 are arranged on the same horizontal plane, the driving roller 302 and the driven roller 303 are arranged above the plurality of extruding rollers 301, the extruding and conveying motor 305 is installed at the right end of the first mounting plate 306 and is used for driving the driving roller 302, and the plurality of extruding rollers 301, the driving roller 302 and the driven roller 303 are in driving connection through the extruding driving belt 304; the four sleeves 8 are symmetrically fixed on the outer sides of the first mounting plate 306 and the second mounting plate 307 respectively, the first thread cylinder 9 is fixed on the outer side of the first mounting plate 306, and the second threaded rod 405 is vertically arranged on the outer side of the second mounting plate 307.

By properly arranging the positions of the driving roller 302 and the driven roller 303, the sheet can smoothly enter between the pressing mechanism 3 and the conveying mechanism 2.

In a specific embodiment of the present utility model, as shown in fig. 1 to 3, the present utility model further includes a tensioning mechanism 11, where the tensioning mechanism 11 includes a pull-down assembly and a tensioning wheel 1105, the pull-down assembly is provided with two groups of pull-down assemblies symmetrically fixed on the outer sides of the first mounting plate 306 and the second mounting plate 307, and the tensioning wheel 1105 is rotatably connected to the upper parts of the two pull-down assemblies and located above the extrusion driving belt 304, and the extrusion driving belt 304 is kept tensioned by pulling the tensioning wheel 1105 downward by the pull-down assemblies.

Specifically, as shown in fig. 1, 2 and 5, each group of pull-down assemblies includes a limiting cylinder 1101, a limiting plate 1102, a tension spring 1103 and a limiting rod 1104, wherein the limiting plate 1102 is slidably connected in an inner cavity of the limiting cylinder 1101, a bottom end of the tension spring 1103 is fixed at the bottom of the inner cavity of the limiting cylinder 1101, a top end of the tension spring 1102 is fixed at the bottom end of the limiting plate 1102, a bottom end of the limiting rod 1104 is fixedly connected with the top end of the limiting plate 1102, a top end of the limiting rod 1104 penetrates out of a top wall of the limiting cylinder 1101 and then extends upwards, a tensioning wheel 1105 is rotatably connected to the upper parts of the outward extending parts of the two limiting rods 1104, the limiting cylinder 1101 close to the first mounting plate 306 is fixedly connected to the outer side of the first mounting plate 306, and the limiting cylinder 1101 close to the second mounting plate 307 is fixedly connected to the outer side of the second mounting plate 307.

Specifically, as shown in fig. 3, the stop lever 1104 has a rectangular cross section.

By arranging the tensioning mechanism 11, the extrusion driving belt 304 can be kept in a tensioning state all the time, the pressing effect is prevented from being influenced by the looseness of the extrusion driving belt 304, and the pressing efficiency is improved; by arranging the tension spring 1103, a downward tension can be generated on the tensioning wheel 1105, so that the tensioning wheel 1105 always tightens the extrusion driving belt 304; by arranging the limiting rod 1104 with a rectangular cross section, the limiting rod 1104 can be prevented from rotating, and the stability of the tensioning mechanism 11 is ensured.

The working principle of the paperboard compound machine is that the forward and reverse rotation of a speed reducing motor 401 is determined according to the thickness of a paperboard, the rotating speed reducing motor 401 drives a driving wheel 402 to rotate, the rotating driving wheel 402 drives a first threaded rod 404 to rotate and simultaneously drives a driven wheel 403 to synchronously rotate through a synchronous transmission belt 406, the rotating driven wheel 403 drives a second threaded rod 405 to rotate, the rotating first threaded rod 404 and the second threaded rod 405 respectively drive a first threaded cylinder 9 and a second threaded cylinder 10 to synchronously move upwards or downwards, and the first threaded cylinder 9 and the second threaded cylinder 10 which move upwards or downwards drive a squeezing mechanism 3 to move upwards or downwards until the distance between the bottom of the squeezing mechanism 3 and the top of a conveying mechanism 2 reaches the design requirement, and then the speed reducing motor 401 is turned off; subsequently, the conveying motor 201 and the pressing conveyance motor 305 of the conveying mechanism 2 are simultaneously activated, so that the sheet passes between the conveying belt 202 and the pressing conveyance belt 304 and the pressing of the sheet is completed.

According to the paperboard compound machine, the height adjusting mechanism 4 is arranged, so that the extruding mechanism 3 can be driven to move upwards or downwards, and the distance between the extruding mechanism 3 and the conveying mechanism 2 is adjusted, so that the paperboard compound machine can press paperboards with different thicknesses, the pressing effect is guaranteed, and the pressing efficiency is improved. In addition, by arranging the second threaded rod 405 and combining the first threaded rod 404, the two sides of the extrusion mechanism 3 are driven simultaneously, and the stability of the extrusion mechanism 3 in the upward or downward moving process is improved; by reasonably arranging the positions of the driving roller 302 and the driven roller 303, the paper board can smoothly enter between the extrusion mechanism 3 and the conveying mechanism 2; by arranging the tensioning mechanism 11, the extrusion driving belt 304 can be kept in a tensioning state all the time, the pressing effect is prevented from being influenced by the looseness of the extrusion driving belt 304, and the pressing efficiency is improved; by arranging the tension spring 1103, a downward tension can be generated on the tensioning wheel 1105, so that the tensioning wheel 1105 always tightens the extrusion driving belt 304; by arranging the limiting rod 1104 with a rectangular cross section, the limiting rod 1104 can be prevented from rotating, and the stability of the tensioning mechanism 11 is ensured.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. A paperboard compounding machine, characterized by: the paper board conveying device comprises a frame (1), a conveying mechanism (2), an extruding mechanism (3) and a height adjusting mechanism (4), wherein the conveying mechanism (2) is arranged between a first side plate (101) and a second side plate (102) of the frame (1) and conveys the paper board, supporting rods (5) are fixed on the upper parts of two ends of the first side plate (101) and the second side plate (102), a top plate (6) is horizontally fixed on the top end of each supporting rod (5), the height adjusting mechanism (4) is installed on the top plate (6), the extruding mechanism (3) is arranged between the conveying mechanism (2) and the top plate (6), and the height adjusting mechanism (4) can drive the extruding mechanism (3) to move up and down; the height adjusting mechanism (4) comprises a speed reducing motor (401) and a first threaded rod (404), the first threaded rod (404) is arranged in the middle of the first side plate (101), the bottom end of the first threaded rod (404) is rotationally connected to the first side plate (101), the upper part of the first threaded rod is rotationally connected to the top plate (6), and the top end of the first threaded rod penetrates out of the top plate (6) and is driven by the speed reducing motor (401); every all slide on bracing piece (5) sleeve (8), a plurality of sleeve (8) link firmly respectively the both sides of extrusion mechanism (3), extrusion mechanism (3) be close to one side of first threaded rod (404) be fixed with first screw thread section of thick bamboo (9) corresponding to first threaded rod (404), first screw thread section of thick bamboo (9) screw thread cup joints on first threaded rod (404), through the rotation of first threaded rod (404) realizes the upper and lower removal of first screw thread section of thick bamboo (9).

2. A paperboard compounding machine as in claim 1, wherein: the novel variable-speed motor further comprises a fixing frame (7), wherein the fixing frame (7) is arranged on the top plate (6), and the reducing motor (401) is arranged on the fixing frame (7) and is positioned right above the first threaded rod (404); the height adjusting mechanism (4) further comprises a driving wheel (402), a driven wheel (403), a second threaded rod (405) and a synchronous transmission belt (406), the top end of the driving wheel (402) is connected with the output end of the speed reducing motor (401), the bottom end of the driving wheel is connected with the top end of the first threaded rod (404), the second threaded rod (405) is arranged in the middle of the second side plate (102), the bottom end of the second threaded rod (405) is rotationally connected to the second side plate (102), the upper portion of the second threaded rod is rotationally connected to the top plate (6), the top end of the second threaded rod penetrates out of the top plate (6) and then is connected with the bottom end of the driven wheel (403), the driving wheel (402) and the driven wheel (403) are in transmission connection through the synchronous transmission belt (406), one side, close to the second threaded rod (405), corresponding to the second threaded cylinder (10) is fixed on one side of the second threaded rod (405), and the second threaded cylinder (10) is in threaded sleeve connection to the second threaded rod (405), and the second threaded rod (405) is rotationally driven by the second threaded rod (10).

3. A paperboard compounding machine as in claim 2, wherein: the extrusion mechanism (3) comprises an extrusion roller (301), a driving roller (302), a driven roller (303), an extrusion driving belt (304), an extrusion conveying motor (305), a first mounting plate (306) and a second mounting plate (307), wherein the first mounting plate (306) and the second mounting plate (307) are sequentially connected with the driven roller (303), a plurality of extrusion rollers (301) and the driving roller (302) in a rotating manner from left to right, the extrusion rollers (301) are uniformly arranged, the extrusion rollers (301) are arranged on the same horizontal plane, the driving roller (302) and the driven roller (303) are arranged above the extrusion rollers (301), the extrusion conveying motor (305) is arranged at the right end of the first mounting plate (306) and used for driving the driving roller (302), and the extrusion rollers (301), the driving roller (302) and the driven roller (303) are in transmission connection through the extrusion driving belt (304); the sleeves (8) are symmetrically fixed on the outer sides of the first mounting plate (306) and the second mounting plate (307) respectively, the first thread cylinder (9) is fixed on the outer side of the first mounting plate (306), and the second threaded rod (405) is vertically arranged on the outer side of the second mounting plate (307).

4. A paperboard compounding machine as in claim 3, wherein: still include straining device (11), straining device (11) include drop-down subassembly and take-up pulley (1105), drop-down subassembly is provided with two sets of and the symmetry fix first mounting panel (306) with the outside of second mounting panel (307), take-up pulley (1105) rotate connect two drop-down subassembly's upper portion just is located the top of extrusion drive belt (304), through drop-down subassembly downward pulling take-up pulley (1105) makes extrusion drive belt (304) keep the tensioning.

5. A paperboard compounding machine as in claim 4, wherein: each group of pull-down assemblies comprises a limiting cylinder (1101), a limiting plate (1102), a tension spring (1103) and a limiting rod (1104), wherein the limiting plate (1102) is slidably connected in an inner cavity of the limiting cylinder (1101), the bottom end of the tension spring (1103) is fixed at the bottom of the inner cavity of the limiting cylinder (1101), the top end of the limiting plate (1102) is fixed at the bottom end of the limiting plate (1102), the bottom end of the limiting rod (1104) is fixedly connected with the top end of the limiting plate (1102), the top end of the limiting rod penetrates out of the top wall of the limiting cylinder (1101) and then extends upwards, the tensioning wheel (1105) is rotatably connected to the upper parts of the two outwards extending parts of the limiting rods (1104), and the limiting cylinder (1101) is fixedly connected with the first mounting plate (306) or the second mounting plate (307).

6. A paperboard compounding machine as in claim 5, wherein: the cross section of the limiting rod (1104) is rectangular.