A papermaking apparatus

Abstract

The application relates to the papermaking technical field and provides a papermaking equipment which comprises a supporting frame, a compression roller assembly and a transmission assembly. The compression roller assembly comprises a driving roller, a driven roller, a connecting plate, a first driving element and a second driving element. The driving roller is rotationally connected to the supporting frame, and the output end of the first driving element is connected to one end of the driving roller. The driven roller is located above the driving roller. The connecting plate is provided with two ends, one end of which is connected to two ends of the driven roller, and the other end is hinged to the output end of the second driving element. The second driving element is vertically installed on the supporting frame, and the middle part of the connecting rod is hinged to the supporting frame. The transmission assembly comprises a fixing shaft, a supporting rod, a first limiting arm and a second limiting arm. Based on the application, the paper can be downwardly conveyed after being pressed, and no external traction force is used to pull the paper, so that the problem of paper breakage is avoided, and the overall practicability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of papermaking, in particular to a papermaking equipment. BACKGROUND

[0002] Papermaking is an important invention of ancient Chinese laborers, which is divided into two forms of mechanism and handwork. Mechanism is to continuously perform on a papermaking machine, dilute paper pulp suitable for paper quality to a certain concentration, and form a wet paper sheet in the net part of the papermaking machine, and then dehydrate through pressing.

[0003] The traditional papermaking equipment paperboard is generally transported by horizontal traction. When the paper passes through the pressing process, stress is generated in the local part of the paper. At the same time, when the paper is output from the pressing process and transferred to the drying area, the paper is continuously transported by horizontal traction. The paper is prone to paper breakage in the pressing process and the drying process. Therefore, it needs to be further improved. SUMMARY

[0004] In order to improve the above problems, the purpose of the present application is to provide a papermaking equipment.

[0005] The papermaking equipment provided by the present application adopts the following technical scheme:

[0006] A papermaking equipment, comprising a support frame, a compression roller assembly and a transmission assembly, the compression roller assembly comprising a driving roller, a driven roller, a connecting plate, a first driving member and a second driving member, the driving roller being rotatably connected to the support frame, and the output end of the first driving member being connected to one end of the driving roller, the driven roller being located above the driving roller, the connecting plate being provided with two ends connected to both ends of the driven roller, and the other end being hinged to the output end of the second driving member, the second driving member being vertically installed on the support frame, and the middle part of the connecting rod being hinged to the support frame; the transmission assembly comprising a fixed shaft, a support rod, a first limiting arm and a second limiting arm, the fixed shaft being provided with two parallel fixed shafts, the first limiting arm and the second limiting arm being respectively fixedly connected to both ends of the fixed shaft, one of the fixed shafts being fixedly connected to the support frame and located in the output direction of the compression roller assembly, the first limiting arm and the second limiting arm being inclined downward along the support frame, a plurality of roller wheels being rotatably connected to the fixed shaft, and the support rod being provided with a plurality of connecting rods connected between the first limiting arm and the second limiting arm.

[0007] By adopting the technical scheme, the paper passes between the driving roller and the driven roller, and the pressing process of the paper is realized by the pressing of the driven roller; the second driving member drives the driven roller to ascend and descend through the connecting plate, so as to meet the pressing of different thicknesses of paper; when the pressed paper passes out of the driving roller and the driven roller, the paper is freely dropped onto the supporting rod by the roller on the fixed shaft and the gravity of the paper itself; at this time, the paper is conveyed along the supporting rod, and the paper does not need to be stretched by external traction, so that the problem of paper breakage caused by the increase of local pressure of the paper due to traction during the pressing process of the paper is avoided; by using the structure, the paper can be conveyed downward after the pressing is completed, and the paper is not pulled by external traction, so that the problem of paper breakage is avoided, and the whole has high practicability.

[0008] Optionally, the device further comprises a scraping assembly, the scraping assembly comprises a first scraper, a rotating disc, a third driving member and a second scraper, the first scraper is located at the side of the driven roller, the rotating disc is connected with the first scraper, the third driving member is installed on the supporting frame, and the output end of the third driving member is connected with the rotating disc, and the second scraper is located at the side of the driven roller and is rotationally connected with the supporting frame.

[0009] By adopting the technical scheme, the third driving member is connected with the first scraper through the rotating disc, and when the driving roller realizes the pressing process of the paper, the lint of part of the paper is left on the surface of the driving roller; the first scraper is abutted against the side of the driving roller, so that the adhered lint can be scraped off from the driving roller, and the quality influence caused by the subsequent pressing process of the lint is avoided; similarly, the second scraper is synchronously rotationally connected with the supporting frame and is abutted against the driven roller, so that the lint on the driven roller is synchronously cleaned and scraped off; by using the structure, the driving roller and the driven roller can always keep clean, and the overall pressing effect of the paper is guaranteed; the third driving member can drive the first scraper to rotate through the rotating disc, and when the lint on the first scraper is collected to a certain degree, the third driving member drives the first scraper to be flipped downward, so that the lint can be conveniently discharged.

[0010] Optionally, the first scraper is located between the driving roller and the fixed shaft, and a plurality of water permeation holes are formed in the first scraper.

[0011] By adopting the technical scheme, the first scraper is located between the driving roller and the fixed shaft, so that the lint on the driving roller can be scraped off in advance when the paper is separated from the driving roller and the driven roller, and the influence of the lint on the pressed paper after the paper is conveyed out; by using the water permeation holes, the water generated during the pressing process of the paper can be naturally dropped to the bottom through the water permeation holes.

[0012] Optionally, a storage box is arranged below the supporting frame of the first scraper.

[0013] By adopting the technical scheme, the set storage box is used to conveniently store the fluff on the first scraper and simultaneously store the moisture generated by the pressing, the structure can maintain the operation environment of the whole device, and the production quality is improved.

[0014] Optionally, the connecting angle between the first limiting arm and the support frame is 110-130 degrees, and the installation height of the roller is lower than the distance between the driving roller and the driven roller.

[0015] By adopting the technical scheme, the connecting angle between the first limiting arm and the support frame is 110-130 degrees, so that the paper can be quickly lowered along the transmission assembly during the paper pressing output, the installation height of the roller is lower than the distance between the driving roller and the driven roller, the paper unloading operation is further assisted, and the production efficiency is improved.

[0016] Optionally, the support rod comprises a first connecting rod and a second connecting rod, a plurality of first connecting rods and a plurality of second connecting rods are arranged, and the first connecting rods and the second connecting rods are sequentially connected between the first limiting arm and the second limiting arm, the second connecting rod is located above the first connecting rod, and a distance is arranged between the first connecting rod and the second connecting rod.

[0017] By adopting the technical scheme, the paper is arranged between the first connecting rod and the second connecting rod, the conveying direction of the paper is effectively limited, the problems of deviation or interference of the paper are prevented, and the smooth conveying process of the paper is facilitated.

[0018] Optionally, a plurality of first air holes are formed on one side of the first connecting rod facing the second connecting rod, a second air hole is formed on one side of the second connecting rod facing the first connecting rod, a placing cavity is formed on the first limiting arm and the second limiting arm, a heating element is arranged in the placing cavity, and the first air hole and the second air hole are in communication with the placing cavity.

[0019] By adopting the technical scheme, when the heating element is heated, heat can pass through the first air hole and the second air hole, and when the paper passes through the first connecting rod and the second connecting rod, the hot air on the first air hole and the second air hole can quickly dry the residual moisture on the paper, so that the drying effect can be achieved when the paper flows along the transmission assembly.

[0020] Optionally, an exhaust fan is installed on the placing cavity, the exhaust fan brings external air into the placing cavity, and the external air then flows into the first air hole and the second air hole.

[0021] By adopting the above technical solution and utilizing the provided exhaust fan, external air can be brought into the accommodation cavity, thereby enhancing the air outlet intensity of the first air hole and the second air hole and accelerating the drying process of the paper.

[0022] Optionally, two transmission components are provided, wherein one end of one transmission component is fixedly connected to the support frame, and the other end is hinged to the other transmission component.

[0023] By adopting the above technical solution, two transmission components are set up. The first transmission component can be used to realize the natural descending discharge of paper, thereby preventing paper breaks; the hinged second transmission component is used to facilitate the control of the subsequent conveying direction of the paper, thereby better completing the continuous processing process of the subsequent paper processes.

[0024] Optionally, a fixed plate is provided between the two transmission components, the transmission component away from the support frame is hinged to the fixed plate, a fourth driving member is provided on the fixed plate, and the output end of the fourth driving member is connected to the transmission component away from the support frame.

[0025] By adopting the above technical solution, the fixed plate is used to facilitate the articulation of the transmission component away from the support frame. The fourth driving member drives the transmission component to rotate to a certain angle to control the subsequent conveying direction of the paper. The overall structural design is sophisticated, the process control is convenient, and the use effect is good.

[0026] In summary, this application has at least one of the following beneficial effects:

[0027] 1. The paper passes between the active roller and the driven roller, and the pressing process of the driven roller is realized by the pressure contact of the driven roller. The second driving member drives the driven roller to rise and fall through the connecting plate, so as to meet the requirements of the thickness of the paper for passing and pressing. When the pressed paper passes through between the active roller and the driven roller, the roller on the fixed shaft and the gravity of the paper itself can be used to transport the paper to the support rod in a free fall. At this time, during the process of transporting the paper along the support rod, there is no need to use external traction to stretch and pull the paper, thereby avoiding the problem of local pressure on the paper increasing again due to traction during the process of completing the pressing, thereby causing the paper to break. With this structure, the paper can be transported downward after the pressing is completed, without external traction to pull it, thereby avoiding the problem of paper breakage. The overall practicality is strong and it has great market promotion value.

[0028] 2. The third driving member is connected to the first scraper through the rotating disc. When the driving roller realizes the paper pressing process, part of the paper dust will be left on the surface of the driving roller. The first scraper abuts against the side of the driving roller, which can scrape the adhered dust from the driving roller, avoiding the quality impact of the subsequent paper pressing process. Similarly, the second scraper is synchronously connected to the support frame and abuts against the driven roller, synchronously cleaning and scraping the dust on the driven roller. With this structure, the driving roller and the driven roller can always remain clean, ensuring the overall pressing effect of the paper. The third driving member can rotate the first scraper. When the dust on the first scraper is collected to a certain extent, the third driving member drives the first scraper to flip downward, facilitating the unloading operation of the dust;

[0029] 3. The first scraper is located between the driving roller and the fixed shaft, which can scrape the dust on the driving roller in advance when the paper is separated from the driving roller and the driven roller, facilitating the paper conveying out of the influence of the dust on the pressed paper. With the water infiltration hole, the water generated during the pressing process of the paper can naturally drip to the bottom from the water infiltration hole;

[0030] 4. The connection angle between the first limiting arm and the support frame is 110-130 degrees, which can quickly realize the downward movement along the transmission assembly when the paper is pressed and output. The installation height of the roller is lower than the distance between the driving roller and the driven roller, which can further assist the paper unloading operation and improve the production efficiency;

[0031] 5. The heating member in the accommodation cavity is used. When the heating member is heated, the heat can pass through the first gas hole and the second gas hole. When the paper passes through the first connecting rod and the second connecting rod, the hot air in the first gas hole and the second gas hole can quickly dry the residual water on the paper, so that the paper can reach the drying effect when it flows along the transmission assembly;

[0032] 6. By setting two transmission assemblies, the first transmission assembly can realize the natural downward discharge of the paper, preventing the paper from breaking; the hinged second transmission assembly facilitates the control of the subsequent conveying direction of the paper, better completing the coherent processing process of the subsequent paper process. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is the overall first perspective structure schematic diagram of the application;

[0034] Figure 2 is the overall second perspective structure schematic diagram of the application;

[0035] Figure 3 is Figure 1 the local enlarged schematic diagram of part A in

[0036] Figure 4 Fig. 8 is a schematic view of a partial connection structure of the accommodation cavity, the first air hole and the second air hole.

[0037] Legend of reference signs:

[0038] 100, support frame; 110, storage box 210, driving roller; 220, driven roller; 230, connecting plate; 240, first driving member; 250, second driving member; 310, fixed shaft; 311, roller; 320, support rod; 321, first connecting rod; 330, first air hole; 331, second connecting rod; 340, second air hole; 350, first limiting arm; 360, second limiting arm; 370, accommodation cavity; 371, heating member; 372, exhaust fan; 410, first scraper; 411, water permeable hole; 420, rotating disc; 430, third driving member; 440, second scraper; 500, fixed plate; 510, fourth driving member. DETAILED DESCRIPTION

[0039] The technical solutions of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application. The present application can be embodied in various different forms, and is not limited to the embodiments described here.

[0040] In the description of the present application, the expressions of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected; or it can be detachably connected; or it can be integrated; or it can be mechanically connected. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] Some embodiments of the present application will be described in detail with reference to Figures 1-4. Those skilled in the art will appreciate that the applications described herein are applicable to any embodiment or example not necessarily depicted or described herein.

[0043] Embodiment 1: A papermaking equipment, referring to Figure 1 、 Figure 2 and Figure 3 , comprising a support frame 100, a compression roller assembly and a transmission assembly, the compression roller assembly comprising a driving roller 210, a driven roller 220, a connecting plate 230, a first driving member 240 and a second driving member 250, the first driving member 240 and the second driving member 250 being servo motors, both ends of the driving roller 210 being rotatably connected to the support frame 100, the first driving member 240 being installed on the support frame 100 and having an output end connected to one end of the driving roller 210, the first driving member 240 driving the driving roller 210 to rotate. The driven roller 220 is located above the driving roller 210, the connecting plate 230 is provided with two ends connected to both ends of the driven roller 220, and the other end is hingedly connected to the output end of the second driving member 250, the second driving member 250 being vertically installed on the support frame 100, the middle part of the connecting rod being hingedly connected to the support frame 100, the second driving member 250 driving the driven roller 220 to rise and fall through the connecting plate 230, the second driving member 250 driving the driven roller 220 to rise and fall through the connecting plate 230, so as to satisfy the thickness of different paper.

[0044] The transmission assembly is provided with two, comprising a fixed shaft 310, a support rod 320, a first limiting arm 350 and a second limiting arm 360, the fixed shaft 310 being provided with two parallel to each other, the first limiting arm 350 and the second limiting arm 360 being respectively fixedly connected to both ends of the fixed shaft 310, one of the fixed shaft 310 being fixedly connected to the support frame 100 and located in the output direction of the compression roller assembly, the paper passing between the driving roller 210 and the driven roller 220, and the process of compression being realized by the driving roller 210 and the driven roller 220.

[0045] The first limiting arm 350 and the second limiting arm 360 are inclined downward along the support frame 100, a plurality of rollers 311 are rotatably connected to the fixed shaft 310, each roller 311 being arranged at equal intervals along the length direction of the fixed shaft 310, and the support rod 320 being provided with a plurality of connections between the first limiting arm 350 and the second limiting arm 360.

[0046] Specifically, when the pressed paper passes between the driving roller 210 and the driven roller 220, the paper is conveyed onto the support rod 320 by the roller 311 on the fixed shaft 310 and the gravity of the paper itself. At this time, the paper is conveyed along the support rod 320 without being stretched by external traction, thereby avoiding the problem of paper breakage caused by the increase of local pressure of the paper due to traction during the pressing process.

[0047] In some embodiments, a scraping assembly is further included, which includes a first scraper 410, a rotating disc 420, a third driving member 430, and a second scraper 440. The third driving member 430 is a servo motor. The first scraper 410 is located at the side of the driven roller 220. The rotating disc 420 is connected to the first scraper 410. The third driving member 430 is installed on the support frame 100. The output end of the third driving member 430 is connected to the rotating disc 420. The second scraper 440 is located at the side of the driven roller 220 and is rotationally connected to the support frame 100.

[0048] The third driving member 430 is connected to the first scraper 410 through the rotating disc 420. During the pressing process of the paper by the driving roller 210, some paper dust will be left on the surface of the driving roller 210. The first scraper 410 abuts against the side of the driving roller 210 to scrape the adhered dust off the driving roller 210, thereby avoiding the influence of the dust on the subsequent paper pressing process. Similarly, the second scraper 440 is rotationally connected to the support frame 100 and abuts against the driven roller 220 to synchronously clean and scrape the dust on the driven roller 220. With this structure, the driving roller 210 and the driven roller 220 can always be kept clean, thereby ensuring the overall pressing effect of the paper. The third driving member 430 can rotate the first scraper 410 through the rotating disc 420. When the dust on the first scraper 410 is collected to a certain extent, the third driving member 430 drives the first scraper 410 to flip downward, thereby facilitating the discharge of the dust.

[0049] It should be noted that the second scraper 440 is rotationally connected to the support frame 100 in the present embodiment, and does not need to be driven by a servo motor. The first scraper 410 and the second scraper 440 are arranged at different positions. The second scraper 440 can scrape and discharge the dust on the driven roller 220 through the rotational connection structure. In actual work, when the paper passes between the driving roller 210 and the driven roller 220, a receiving plate (not shown in the figure) is arranged between the second scraper 440 and the paper to receive the waste scraped by the second scraper 440.

[0050] In some embodiments, the first scraper 410 is located between the driving roller 210 and the fixed shaft 310, which facilitates the removal of the fluff on the driving roller 210 in advance when the paper is separated from the driving roller 210 and the driven roller 220, and prevents the fluff from affecting the paper after the paper is conveyed out; the first scraper 410 is provided with a plurality of water permeable holes 411, which facilitates the natural dripping of the water generated during the pressing process from the water permeable holes 411 to the bottom for drainage.

[0051] In some embodiments, the support frame 100 is provided with a storage box 110 below the first scraper 410, which facilitates the storage of the fluff on the first scraper 410 and the simultaneous storage of the water generated during the pressing process, and the structure can maintain the operating environment of the entire device and improve the production quality.

[0052] In some embodiments, the first limiting arm and the support frame 100 are connected at an angle of 110-130 degrees, which facilitates the quick downward movement of the paper along the transmission assembly during the paper pressing and outputting process; the installation height of the roller 311 is lower than the distance between the driving roller 210 and the driven roller 220, which can further assist the paper unloading operation and improve the production efficiency.

[0053] In some embodiments, the support rod 320 comprises a first connecting rod 321 and a second connecting rod 331, both of which are circular hollow structures, and a plurality of first connecting rods 321 and second connecting rods 331 are sequentially connected between the first limiting arm 350 and the second limiting arm 360; the second connecting rod 331 is located above the first connecting rod 321, and a distance is provided between the first connecting rod 321 and the second connecting rod 331; the paper is arranged between the first connecting rod 321 and the second connecting rod 331, which can effectively limit the conveying direction of the paper and prevent the paper from deviating or interfering, and facilitates the smooth conveying process of the paper.

[0054] Referring to Figure 1 With Figure 4The first connecting rod 321 is provided with a plurality of first air holes 330 on one side facing the second connecting rod 331, the second connecting rod 331 is provided with a second air hole 340 on one side facing the first connecting rod 321, a first limiting arm 350 and a second limiting arm 360 are provided with a placing cavity 370, a heating element 371 is arranged in the placing cavity 370, the first air hole 330 and the second air hole 340 are in communication with the placing cavity 370, and the heating element 371 in the placing cavity 370 is used. When the heating element 371 is heated, heat can pass through the first air hole 330 and the second air hole 340, and when the paper passes through the first connecting rod 321 and the second connecting rod 331, the hot air on the first air hole 330 and the second air hole 340 can quickly dry the residual moisture on the paper, so that the paper can reach the drying effect when flowing through the conveying assembly.

[0055] In some embodiments, the placing cavity 370 is provided with an exhaust fan 372, the exhaust fan 372 brings external air into the placing cavity 370, and then flows into the first air hole 330 and the second air hole 340. The exhaust fan 372 is arranged to facilitate the introduction of external air into the placing cavity 370, thereby enhancing the air outlet intensity of the first air hole 330 and the second air hole 340 and accelerating the drying process of the paper.

[0056] It should be noted that in the embodiment, two conveying assemblies are provided, one end of one of the conveying assemblies is fixedly connected to the support frame 100, and the other end is hingedly connected to the other conveying assembly. By arranging two conveying assemblies, the natural descending of the paper can be realized by the first conveying assembly, and the phenomenon of paper breakage is prevented. By using the hingedly connected second conveying assembly, the subsequent conveying direction of the paper can be controlled, and the subsequent process of the paper can be better completed.

[0057] Specifically, a fixed plate 500 is arranged between the two conveying assemblies, the conveying assembly away from the support frame 100 is hingedly connected to the fixed plate 500, the fixed plate 500 is provided with a fourth driving element 510, the fourth driving element 510 is a servo motor, and the output end of the fourth driving element 510 is connected to the conveying assembly away from the support frame 100. The fixed plate 500 is arranged to facilitate the hinging of the conveying assembly away from the support frame 100, and the fourth driving element 510 drives the conveying assembly to rotate to a certain angle to control the subsequent conveying direction of the paper.

[0058] The implementation principle of the embodiment of the present application is as follows: the paper passes between the active roller 210 and the driven roller 220, and the pressing process of the driven roller 220 is realized by the pressure contact of the driven roller 220. The second driving member 250 drives the driven roller 220 to rise and fall through the connecting plate 230, so as to meet the requirements of the thickness of different papers for passing and pressing. When the pressed paper passes out from between the active roller 210 and the driven roller 220, the roller 311 on the fixed shaft 310 and the gravity of the paper itself can be used to transport the paper freely toward the support rod 320. At this time, during the process of transporting the paper along the support rod 320, there is no need to use external traction force to stretch and pull the paper, thereby avoiding the problem of increasing local pressure on the paper due to traction force again during the process of completing the pressing of the paper, thereby causing paper breakage.

[0059] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A papermaking apparatus, characterized by: The utility model relates to a kind of paperboard conveying device, including support frame (100), compression roller assembly and transmission assembly, the compression roller assembly includes driving roller (210), driven roller (220), connecting plate (230), first driving part (240) and second driving part (250), the driving roller (210) is rotatably connected to the support frame (100), and the output end of the first driving part (240) is connected to one end of the driving roller (210), the driven roller (220) is located above the driving roller (210), the connecting plate (230) is provided with two and one end is connected to the both ends of the driven roller (220), the other end is hinged with the output end of the second driving part (250), and the second driving part (250) is vertically installed on the support frame (100); The transmission assembly includes fixed shaft (310), support rod (320), first limiting arm (350) and second limiting arm (360), the fixed shaft (310) is provided with two parallel to each other, the first limiting arm (350) and the second limiting arm (360) are respectively fixedly connected to the both ends of the fixed shaft (310), one of the both ends of the fixed shaft (310) is fixedly connected to the support frame (100), and is located in the output direction of the compression roller assembly, the first limiting arm (350) and the second limiting arm (360) are inclinedly arranged downward along the support frame (100), a plurality of rollers (311) are rotatably connected to the fixed shaft (310), the support rod (320) is provided with a plurality of connections between the first limiting arm (350) and the second limiting arm (360); It also includes a scraping assembly, the scraping assembly includes first scraper (410), rotating disc (420), third driving part (430) and second scraper (440), the first scraper (410) is located at the side of the driven roller (220), the rotating disc (420) is connected with the first scraper (410), the third driving part (430) is installed on the support frame (100), and the output end of the third driving part (430) is connected to the rotating disc (420), the second scraper (440) is located at the side of the driven roller (220), and is rotatably connected with the support frame (100); The support rod (320) includes first connecting rod (321) and second connecting rod (331), the first connecting rod (321) and the second connecting rod (331) are provided with a plurality of, sequentially connected between the first limiting arm (350) and the second limiting arm (360), the second connecting rod (331) is located above the first connecting rod (321), and a spacing is provided between the first connecting rod (321) and the second connecting rod (331). The first connecting rod (321) is provided with a plurality of first air holes (330) on one side facing the second connecting rod (331), the second connecting rod (331) is provided with a second air hole (340) on one side facing the first connecting rod (321), the first limiting arm (350) and the second limiting arm (360) are provided with a placing cavity (370), the placing cavity (370) is provided with a heating element (371), and the first air hole (330) and the second air hole (340) are in communication with the placing cavity (370).

2. A papermaking apparatus according to claim 1, wherein: The first scraper (410) is located between the driving roller (210) and the fixed shaft (310), and a plurality of water infiltration holes (411) are formed in the first scraper (410).

3. A papermaking apparatus according to claim 2, wherein: The support frame (100) is located below the first scraper (410) and is provided with a storage box (110).

4. A papermaking apparatus according to claim 1, wherein: The connecting angle between the first limiting arm (350) and the support frame (100) is 110-130 degrees, and the installation height of the roller (311) is lower than the distance between the driving roller (210) and the driven roller (220).

5. A papermaking apparatus according to claim 1, wherein: The placing cavity (370) is provided with an exhaust fan (372), which brings external air into the placing cavity (370) and then flows into the first air hole (330) and the second air hole (340).

6. A papermaking apparatus according to claim 1, wherein: The transmission assembly is provided with two, one end of one of the transmission assemblies is fixedly connected to the support frame (100), and the other end is hingedly connected to the other transmission assembly.

7. A papermaking apparatus according to claim 6, wherein: The two transmission assemblies are provided with a fixed plate (500), the transmission assembly away from the support frame (100) is hingedly connected to the fixed plate (500), the fixed plate (500) is provided with a fourth driving element (510), and the output end of the fourth driving element (510) is connected to the transmission assembly away from the support frame (100).

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