Gypsum board interface waterproof layer rolling and coating device

Abstract

The invention discloses a gypsum board interface waterproof layer rolling coating device which comprises a separable fixing frame, an upper pressing roller, a lower carrier roller, a separation adjusting mechanism and a dispersion cleaning mechanism. The separation adjusting mechanism can manually or automatically adjust the moving distance of the upper movable part of the fixing frame according to the preset coating thickness of the interface agent; the dispersing and cleaning mechanism cleans the end face of the upper pressing roller through the cleaning part and evenly distributes the interface agent carried on the upstream surface protection paper through the dispersing part so that the interface agent can be prevented from being gathered on the front face and the edge of the surface protection paper. A rolling coating mode is adopted, a movable upper pressing roller is used for carrying out rolling coating on an interface agent directly discharged from surface protection paper, the interface agent is evenly spread on the surface of the surface protection paper to form a waterproof interface layer, a dispersion cleaning mechanism is used for cleaning the upper pressing roller, and the interface agent on the surface protection paper is pre-spread; therefore, the influence of splashing of the interface agent and non-uniform distribution of the interface agent on the surface protection paper on the interface layer is avoided.

Description

Technical Field

[0001] The invention relates to the field of gypsum board production and manufacturing, and in particular to a gypsum board interface waterproof layer roller coating device. Background Art

[0002] During the manufacturing process of waterproof gypsum board, it is necessary to add an interface agent to the gypsum slurry to improve the waterproof effect of the gypsum board.

[0003] At present, most waterproof gypsum boards usually add interface agents by directly mixing the interface agent in the gypsum slurry, and the mixture of the interface agent and the gypsum slurry is directly fed onto the face paper for wet board forming. However, this method of mixing the interface agent and the gypsum slurry requires more interface agent to be added to the gypsum slurry to achieve good waterproof performance. Even if the ratio of the interface agent is increased, since the interface agent and the gypsum slurry are in a mixed state, it is still impossible for the interface agent to form an interface layer that completely covers the surface of the gypsum slurry, making it difficult to obtain a good interface waterproof effect, resulting in the inability to further improve the waterproof and moisture-proof performance of the gypsum board.

[0004] Therefore, the existing method of forming interface waterproofing by mixing interface agent and gypsum slurry is difficult to obtain a waterproof interface layer with better waterproof performance with a smaller amount of interface agent. Summary of the invention

[0005] The purpose of the present invention is to provide a gypsum board interface waterproof layer roller coating device to solve the technical problem in the prior art that the interface agent cannot form an interface layer on the surface of the gypsum slurry due to the mixing and feeding method, making it difficult to obtain a waterproof interface layer with better waterproof performance with a smaller amount of interface agent.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A gypsum board interface waterproof layer roller coating device, comprising:

[0008] A detachable fixing frame is arranged perpendicular to the conveying direction of the face paper and parallel to the face paper, and comprises an upper movable part and a lower fixing part;

[0009] An upper pressing roller, mounted on the upper movable portion of the fixed frame, for uniformly coating the interface agent carried on the upper surface of the face paper;

[0010] A lower roller, mounted on the lower fixing portion of the fixing frame and located directly below the upper pressing roller, for supporting the face paper carrying the interface agent;

[0011] A separation adjustment mechanism is installed on the lower fixed part of the fixing frame and connected to the upper movable part of the fixing frame, and is used to control the upper movable part of the fixing frame to move up and down;

[0012] A dispersing and cleaning mechanism, mounted on the upper movable portion of the fixed frame, comprising a cleaning portion and a dispersing portion;

[0013] The active end of the cleaning part is close to the end surface of the upper pressing roller, and is used to scrape off the interface agent accumulated on the end surface of the upper pressing roller. The active end of the dispersing part is close to the upper surface of the upstream face paper, and is used to evenly distribute the interface agent carried on the face paper.

[0014] Wherein, the separation adjustment mechanism can manually or automatically adjust the moving distance of the upper movable part of the fixing frame according to the preset coating thickness of the interface agent;

[0015] The dispersing and cleaning mechanism cleans the end surface of the upper pressure roller through the cleaning part, and evenly distributes the interface agent carried on the upstream face paper through the dispersing part to prevent the interface agent from gathering on the front and edge of the face paper.

[0016] As a preferred solution of the present invention, the lower fixing portion of the detachable fixing frame includes two symmetrically arranged support frames, the two support frames are respectively mounted on the two side frames of the face paper conveyor, and the motor for driving the lower roller to rotate is mounted on one of the support frames;

[0017] The upper movable part of the detachable fixed frame includes a movable frame installed on the corresponding support frame, the two movable frames are respectively located on both sides of the face paper conveyor, and the motor for driving the upper pressing roller to rotate is installed on one of the movable frames;

[0018] Wherein, the movable frame is slidably mounted on the supporting frame.

[0019] As a preferred solution of the present invention, the separation adjustment mechanism includes an electric cylinder, the electric cylinder is fixed on the support frame, and the cylinder rod of the electric cylinder is installed on the movable frame.

[0020] As a preferred solution of the present invention, the cleaning part of the dispersion cleaning mechanism includes two spring pieces and two scrapers;

[0021] The two spring pieces are respectively mounted on the two movable frames, and the two scrapers are respectively mounted on the two spring pieces;

[0022] The spring sheet supports the scraper at the end of the upper pressing roller and makes the scraper contact with the end surface of the upper pressing roller;

[0023] Wherein, the scraper is made of soft rubber material.

[0024] As a preferred solution of the present invention, the dispersing part of the dispersing and cleaning mechanism includes a fixing plate and a material blocking plate;

[0025] The fixed plate spans the face paper and is mounted on the two movable frames, the baffle plate is mounted on the upstream side wall of the fixed plate, and the lower end of the baffle plate is close to the surface of the face paper;

[0026] Wherein, the fixing plate can be adjusted to a fixed height on the movable frame.

[0027] As a preferred solution of the present invention, a scraping groove is provided on a side of the scraper close to the upper pressing roller, the scraping groove abuts against the outer edge of the end surface of the upper pressing roller, and the inner angle of the scraping groove matches the outer edge of the end surface of the upper pressing roller;

[0028] The axial groove wall of the scraping groove contacts the roller surface of the upper pressing roller, and the radial groove wall of the scraping groove contacts the end surface of the upper pressing roller;

[0029] Wherein, the upper pressing roller is a mirror surface roller.

[0030] As a preferred solution of the present invention, a guide plate is provided on the outer wall of the scraper parallel to the axis of the upper pressure roller, and a plurality of guide grooves are provided on the surfaces of the guide plate and the scraper;

[0031] One end of the guide vane away from the scraper is mounted on the upstream side wall of the baffle plate, and the height of the connection between the guide vane and the scraper is higher than the height of the connection between the guide vane and the baffle plate;

[0032] Wherein, the guide plate can be bent.

[0033] As a preferred solution of the present invention, a plurality of flow-collecting grooves are arranged on the upstream side wall of the baffle plate, the lower ends of the plurality of flow-collecting grooves converge in the middle on the upstream side wall of the baffle plate, and the upper ends of the plurality of flow-collecting grooves are symmetrically distributed and aligned with the plurality of flow-guiding grooves on the two guide plates;

[0034] Wherein, the confluence of the lower ends of the plurality of converging grooves smoothly transitions to the outer wall of the baffle plate.

[0035] As a preferred solution of the present invention, two spiral sleeves are symmetrically mounted on the downstream side wall of the baffle plate, and the spiral sleeves are arranged on the side edge of the baffle plate;

[0036] A curvature adjustment screw is rotatably arranged on the side wall of the fixing plate, the curvature adjustment screw has two groups of symmetrically arranged threads, and the two screw sleeves are symmetrically installed on the curvature adjustment screw and cooperate with the two threads;

[0037] Wherein, the curvature adjustment screw can be adjusted manually or automatically.

[0038] As a preferred solution of the present invention, the length of the baffle plate perpendicular to the conveying direction is greater than the length of the face paper perpendicular to the conveying direction, and two horizontal guide grooves are symmetrically arranged at the lower end of the upstream side wall of the baffle plate, and the distance between the two horizontal guide grooves is less than the length of the face paper perpendicular to the conveying direction;

[0039] A recovery tray is arranged on the support frame, the recovery tray is located at the bottom of the lower roller, and the length of the recovery tray perpendicular to the conveying direction is greater than the length of the baffle plate perpendicular to the conveying direction;

[0040] Wherein, the opposite sides of the two horizontal guide grooves are smoothly transitioned to the bottom of the baffle plate.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The present invention adopts a roller coating method, and uses a movable upper pressure roller to roll-coat the interface agent directly discharged on the face paper, so that the interface agent is evenly spread on the surface of the face paper to form a waterproof interface layer, and uses a dispersion and cleaning mechanism to clean the upper pressure roller and pre-spread the interface agent on the face paper, thereby avoiding the splashing of the interface agent and the influence of uneven distribution of the interface agent on the face paper on the formation of the interface layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0044] Figure 1 A schematic diagram of the structure of a roller coating device for a gypsum board interface waterproof layer provided by an embodiment of the present invention;

[0045] Figure 2 A schematic structural diagram of a scraper portion of a device for roller-coating a waterproof layer on a gypsum board interface provided by an embodiment of the present invention;

[0046] Figure 3 A schematic diagram of the structure of a material baffle plate portion of a device for roller-coating a waterproof layer on a gypsum board interface provided by an embodiment of the present invention;

[0047] Figure 4 A schematic diagram of the structure of the curvature adjustment screw portion of the gypsum board interface waterproof layer roller coating device provided in an embodiment of the present invention.

[0048] The numbers in the figure represent the following:

[0049] 1-detachable fixed frame; 2-upper pressure roller; 3-lower roller; 4-separation adjustment mechanism; 5-dispersion cleaning mechanism; 6-recovery tray;

[0050] 11-support frame; 12-movable frame; 41-electric cylinder; 51-shrapnel; 52-scraper; 53-fixed plate; 54-blocking plate;

[0051] 521-scraping groove; 522-guide plate; 523-guide groove; 531-curvature adjustment screw; 532-thread; 541-flow focusing groove; 542-screw sleeve; 543-horizontal guide groove. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] like Figure 1 As shown, the present invention provides a gypsum board interface waterproof layer roller coating device, comprising:

[0054] A detachable fixing frame 1 is arranged perpendicular to the conveying direction of the face paper and parallel to the face paper, and comprises an upper movable part and a lower fixing part;

[0055] The upper pressing roller 2 is mounted on the upper movable part of the fixed frame 1 and is used to evenly coat the interface agent carried on the upper surface of the face paper;

[0056] The lower roller 3 is mounted on the lower fixed part of the fixed frame 1 and is located directly below the upper pressing roller 2, and is used to support the face paper carrying the interface agent;

[0057] The separation adjustment mechanism 4 is installed on the lower fixed part of the fixing frame 1 and connected to the upper movable part of the fixing frame 1, and is used to control the upper movable part of the fixing frame 1 to move up and down;

[0058] The dispersing and cleaning mechanism 5 is mounted on the upper movable part of the fixed frame 1 and includes a cleaning part and a dispersing part;

[0059] The active end of the cleaning part is close to the end surface of the upper pressing roller 2, and is used to scrape off the interface agent accumulated on the end surface of the upper pressing roller 2. The active end of the dispersing part is close to the upper surface of the upstream face paper, and is used to evenly distribute the interface agent carried on the face paper.

[0060] The separation adjustment mechanism 4 can manually or automatically adjust the moving distance of the upper movable portion 11 of the fixing frame 1 according to the preset coating thickness of the interface agent;

[0061] The dispersing and cleaning mechanism 5 cleans the end surface of the upper pressure roller 2 through the cleaning part, and evenly distributes the interface agent carried on the upstream face paper through the dispersing part to prevent the interface agent from gathering on the front and edge of the face paper.

[0062] The coating device of this embodiment mainly utilizes the upper pressure roller 2 to roll the interface agent on the face paper on the lower support roller 3, and utilizes the separation adjustment mechanism 4 to adjust the height of the upper pressure roller 2 to change the distance from the upper pressure roller 2 to the lower support roller 3, thereby adjusting the thickness of the rolled interface agent, and utilizes the cleaning part of the dispersion cleaning mechanism 5 to clean the end of the upper pressure roller 2, and utilizes the dispersion part of the dispersion cleaning mechanism 5 to spread the interface agent on the face paper, so that the upper pressure roller 2 can evenly roll the interface agent on the face paper to form an interface waterproof layer.

[0063] During the rolling process, the upper pressing roller 2 squeezes the interface agent on the face paper, so that the interface agent forms an interface layer on the face paper that matches the distance between the upper pressing roller 2 and the face paper, and the upper pressing roller 2 is adhered with viscous interface agent.

[0064] Especially at the end portion (outer edge of the end face) of the upper pressing roller 2, when more interface agent adheres to the end portion of the upper pressing roller 2, the adhesion of the interface agent to the outer edge of its end face is reduced (the contact area between the interface agent and the outer edge of the end face of the upper pressing roller 2 is small, and the centrifugal force exerted on the interface agent at the end face is parallel to the end face), the interface agent will be thrown out by the rotation of the upper pressing roller 2, causing the interface agent to splash, thereby affecting the coated interface layer and the production environment.

[0065] Therefore, the cleaning part of the dispersing and cleaning mechanism 5 can clean the end of the upper pressing roller 2 to remove the interface agent, thereby preventing the interface agent from accumulating at the end of the upper pressing roller 2 .

[0066] Since the interface agent is usually fed in the middle of the face paper by a feeder, it flows and distributes to both sides relying on its own fluidity, and then is transported to the upper pressure roller 2 with the face paper for coating.

[0067] However, due to the certain viscosity of the interface agent, when it is transported to the upper pressure roller 2, the thickness of the interface agent in the middle of the face paper is always greater than the thickness of the interface agent on both sides of the face paper, which can easily cause the thickness of the interface agent on both sides to be less than the distance between the upper pressure roller 2 and the face paper, resulting in uneven thickness of the coated interface layer and failing to meet the standard.

[0068] Therefore, the dispersion part of the dispersion and cleaning mechanism 5 can pre-spread the interface agent on the face paper before the upper pressure roller 2 coats the interface agent, thereby accelerating the flow of the interface agent to both sides, making the interface agent spread more evenly on the face paper, making it easier for the upper pressure roller 2 to coat the interface agent into a uniform interface layer.

[0069] Compared with the coating device that usually only uses a pressure roller for rolling coating, the coating device of this embodiment can spread the interface agent evenly in advance, and then evenly coat the interface agent on the face paper through the upper pressure roller 2, and can clean the interface agent adhered to the end of the upper pressure roller 2 to prevent it from splashing and affecting the coated interface layer and the production environment.

[0070] During the production process, gypsum boards of different specifications have different levels of waterproof standards, and accordingly, the thickness of the interface layer on the facing paper is also different. In order to be able to adjust the thickness of the rolled interface layer according to gypsum boards of different specifications, the upper pressure roller 2 needs to be able to rise and fall to change the distance between it and the facing paper.

[0071] Therefore, if Figure 1 As shown, the lower fixing portion of the detachable fixing frame 1 includes two symmetrically arranged support frames 11, the two support frames 11 are respectively mounted on the two side frames of the face paper conveyor, and the motor for driving the lower roller 3 to rotate is mounted on one of the support frames 11;

[0072] The upper movable part of the detachable fixed frame 1 includes a movable frame 12 mounted on the corresponding support frame 11, the two movable frames 12 are respectively located on both sides of the face paper conveyor, and the motor for driving the upper pressing roller 2 to rotate is installed on one of the movable frames 12;

[0073] The movable frame 12 is slidably mounted on the supporting frame 11 .

[0074] Specifically, the movable frame 12 can move on the supporting frame 11 , and the separation adjustment mechanism 4 can drive the movable frame 12 to move on the supporting frame 11 .

[0075] Therefore, when the separation adjustment mechanism 4 drives the movable frame 12 to move upward, the upper pressure roller 2 moves upward, thereby increasing the distance between the upper pressure roller 2 and the lower support roller 3 (or the protective paper); when the separation adjustment mechanism 4 drives the movable frame 12 to move downward, the upper pressure roller 2 moves downward, thereby reducing the distance between the upper pressure roller 2 and the lower support roller 3 (or the protective paper), so as to achieve the adjustment of the thickness of the interface layer coating.

[0076] The separation adjustment mechanism 4 includes an electric cylinder 41 , which is fixed on the support frame 11 , and a cylinder rod of the electric cylinder 41 is installed on the movable frame 12 .

[0077] The electric cylinder 41 is controlled by a controller, and the thickness of the interface layer required for gypsum boards of different specifications is preset in the controller. When one specification of gypsum boards is selected for production, the controller controls the electric cylinder 41 to drive the movable frame 12 to move on the support frame 11 to change the distance between the upper pressure roller 2 and the lower support roller 3, thereby adjusting the rolling spacing to the set distance.

[0078] The cleaning part of the dispersion cleaning mechanism 5 can clean the interface agent adhered to the end of the upper pressure roller 2, and the specific structure is as follows:

[0079] like Figure 1 and Figure 2 As shown, the cleaning part of the dispersion cleaning mechanism 5 includes two spring pieces 51 and two scrapers 52;

[0080] The two spring pieces 51 are respectively mounted on the two movable frames 12, and the two scrapers 52 are respectively mounted on the two spring pieces 51;

[0081] The spring sheet 51 supports the scraper 52 at the end of the upper pressing roller 2, and makes the scraper 52 contact with the end surface of the upper pressing roller 2;

[0082] The scraper 52 is made of soft rubber.

[0083] Specifically, the spring sheet 51 presses the scraper 52 against the end of the upper pressure roller 2. During the rotation of the upper pressure roller 2, the scraper 52 and the end surface of the upper pressure roller 2 produce relative movement, and the interface agent on the upper pressure roller 2 is scraped off by the scraper 52, thereby avoiding the accumulation of the interface agent at the end of the upper pressure roller 2.

[0084] The spring piece 51 has a certain elastic force, which can not only push the scraper 52 against the end surface of the upper pressure roller 2 for scraping, but also ensure that the scraper 52 can be against the end surface of the upper pressure roller 2 for a long time during the gradual wear of the scraper 52, without frequent adjustment.

[0085] The dispersing part of the dispersing and cleaning mechanism 5 can spread the interface agent on the face paper in advance, and its specific structure is as follows:

[0086] like Figure 1 and Figure 4 As shown, the dispersing part of the dispersing and cleaning mechanism 5 includes a fixing plate 53 and a material blocking plate 54;

[0087] The fixed plate 53 spans the face paper and is mounted on the two movable frames 12, and the baffle plate 54 is mounted on the upstream side wall of the fixed plate 53, and the lower end of the baffle plate 53 is close to the surface of the face paper;

[0088] The fixing plate 53 can be adjusted to a fixed height on the movable frame 12 .

[0089] Specifically, since the distance between the upper pressure roller 2 and the lower support roller 3 is achieved by adjusting the height of the movable frame 12, after the upper pressure roller 2 is adjusted, the change of the movable frame 12 will cause the distance between the fixed plate 53 and the baffle plate 54 and the face paper to change.

[0090] Therefore, in order to prevent the distance between the baffle plate 54 and the face paper from changing and affecting the pre-paving effect, the fixed plate 53 can adjust the baffle plate 54 to maintain the distance between it and the face paper and avoid increasing or decreasing it.

[0091] During the rolling process, the interface agent will also adhere to the roller surface of the upper pressure roller 2, and the adhered and accumulated interface agent will overflow to both sides, and the interface agent accumulated on the roller surface close to the end surface will overflow to the end surface.

[0092] Therefore, if Figure 2 As shown, a scraping groove 521 is provided on one side of the scraper 52 close to the upper pressing roller 2, the scraping groove 521 abuts against the outer edge of the end surface of the upper pressing roller 2, and the inner angle of the scraping groove 521 matches the outer edge of the end surface of the upper pressing roller 2;

[0093] The axial groove wall of the scraping groove 521 contacts the roller surface of the upper pressing roller 2, and the radial groove wall of the scraping groove 521 contacts the end surface of the upper pressing roller 2;

[0094] Among them, the upper pressing roller 2 is a mirror surface roller.

[0095] Specifically, by providing a scraping groove 521 on the scraper 52, when the scraper 52 is pressed against the end face of the upper pressure roller 2 by the spring sheet 51, the scraping groove 521 is stuck on the outer edge of the end face of the upper pressure roller 2, so that the axial groove wall of the scraping groove 521 can scrape off the interface agent adhered to the roller surface, and the radial groove wall of the scraping groove 521 can scrape off the interface agent adhered to the end face.

[0096] The upper pressure roller 2 adopts a mirror design, so as to reduce the friction between the upper pressure roller 2 and the scraper 52 and reduce the friction loss of the scraper 52. Then, the scraper 52 made of soft rubber material can be pressed tightly on the upper pressure roller 2 to improve the effect of scraping off the interface agent.

[0097] After the scraper 52 scrapes off the interface agent adhered to the end of the upper pressure roller 2, the interface agent will accumulate on the surface of the scraper 52, and the accumulated interface agent will overflow from the scraper 52 to the surrounding area.

[0098] Therefore, further, Figure 2 and Figure 3 As shown, a guide plate 522 is provided on the outer wall of the scraper 52 parallel to the axis of the upper pressure roller 2, and a plurality of guide grooves 523 are provided on the surfaces of the guide plate 522 and the scraper 52;

[0099] One end of the guide vane 522 away from the scraper plate 52 is mounted on the upstream side wall of the baffle plate 54, and the height of the connection between the guide vane 522 and the scraper plate 52 is higher than the height of the connection between the guide vane 522 and the baffle plate 54;

[0100] The guide plate 522 can be bent.

[0101] Specifically, the guide groove 523 on the guide plate 522 can guide the interface agent accumulated on the scraper 52 to the baffle plate 54 .

[0102] Since the interface agent is guided to the upstream side wall of the baffle plate 54, the interface agent flows downward from the upstream side wall of the baffle plate 54 to the upstream face paper, mixes with the interface agent on the face paper, and is spread by the baffle plate 54, thereby avoiding overflow and waste of the interface agent.

[0103] The guide plate 522 is bendable, so when the fixing plate 53 adjusts the position of the baffle plate 54 , the guide plate 522 can deform along with the movement of the baffle plate 54 without affecting the drainage effect of the guide groove 523 on the guide plate 522 .

[0104] The interface agent drained to the upper side wall of the baffle plate 54 will flow downward, but if it is not restricted, the flow direction will be uncontrollable, resulting in uneven distribution of the interface agent, thereby affecting the paving effect and easily causing the interface agent to overflow from the facing paper (when the drained interface agent moves to both sides of the baffle plate 54, the amount of interface agent on both sides of the edge of the facing paper will increase).

[0105] Therefore, further, if Figure 3 As shown, a plurality of focusing grooves 541 are provided on the upstream side wall of the baffle plate 54, the lower ends of the plurality of focusing grooves 541 converge at the center on the upstream side wall of the baffle plate 54, and the upper ends of the plurality of focusing grooves 541 are symmetrically distributed and aligned with the plurality of guide grooves 523 on the two guide plates 522;

[0106] The confluence of the lower ends of the plurality of converging grooves 541 forms a smooth transition with the outer wall of the baffle plate 54 .

[0107] Specifically, the interface agent guided to the baffle plate 54 by the guide groove 523 of the guide piece 522 will fall on the upper end of the focusing groove 541, flow downward along the focusing groove 541 and gather in the middle of the baffle plate 54, so that the interface agent falls in the middle of the face paper.

[0108] The interface agent falling in the middle of the face paper can be spread more evenly by the material blocking plate 54, thereby preventing the interface agent from overflowing on both sides of the face paper.

[0109] The baffle plate 54 can move the excess part of the interface agent gathered in the middle of the face paper, and the blocked part gradually accumulates and slides to both sides from the surface of the baffle plate 54, thereby spreading a large amount of interface agent gathered in the middle to both sides, so that the interface agent is more evenly distributed on the face paper.

[0110] During the paving process, due to the different conveying speeds of the face paper, the interface agent cannot flow from the middle to the two sides, resulting in the interface agent distribution having a thickness in the middle that is much greater than the thickness on the two sides.

[0111] Therefore, if Figure 3 and Figure 4As shown, two spiral sleeves 542 are symmetrically mounted on the downstream side wall of the baffle plate 54, and the spiral sleeves 542 are arranged on the side edge of the baffle plate 54;

[0112] A curvature adjustment screw 531 is rotatably provided on the side wall of the fixing plate 53. The curvature adjustment screw 531 has two sets of symmetrically provided threads 532. Two screw sleeves 542 are symmetrically installed on the curvature adjustment screw 531 and cooperate with the two threads 532.

[0113] The curvature adjustment screw 531 can be adjusted manually or automatically.

[0114] Specifically, when the curvature adjustment screw 531 is rotated, the two screw sleeves 532 can move in a mirror-image manner along the axis of the curvature adjustment screw 531 , thereby adjusting the curvature of the baffle plate 54 .

[0115] When the curvature of the baffle plate 54 is large, the greater the curvature of the baffle plate 54, the smaller the resistance of the blocked interface agent to flow to both sides; when the curvature of the baffle plate 54 is small, the smaller the curvature of the baffle plate 54, the greater the resistance of the blocked interface agent to flow to both sides.

[0116] Therefore, when the face paper is conveyed at a faster speed, the curvature of the baffle plate 54 is adjusted to a smaller value, so as to prevent the interface agent from overflowing while evenly spreading the interface agent; when the face paper is conveyed at a slower speed, the curvature of the baffle plate 54 is adjusted to a larger value, so that the interface agent can flow quickly to both sides to keep the interface agent evenly distributed on the face paper.

[0117] Since the conveying of the face paper fluctuates, the curvature adjustment of the baffle plate 54 is difficult to match in time, which may cause part of the interface agent to overflow from both sides of the baffle plate 54 onto the face paper surface, causing the edge and even the bottom of the face paper to be contaminated.

[0118] Therefore, if Figure 4 As shown, the length of the baffle plate 54 perpendicular to the conveying direction is greater than the length of the face paper perpendicular to the conveying direction, and two horizontal guide grooves 543 are symmetrically arranged at the lower end of the upstream side wall of the baffle plate 54, and the distance between the two horizontal guide grooves 543 is less than the length of the face paper perpendicular to the conveying direction;

[0119] A recovery tray 6 is provided on the support frame 11, and the recovery tray 6 is located at the bottom of the lower roller 3, and the length of the recovery tray 6 perpendicular to the conveying direction is greater than the length of the baffle plate 54 perpendicular to the conveying direction;

[0120] The opposite sides of the two horizontal guide grooves 543 are smoothly transitioned to the bottom of the material blocking plate 54 .

[0121] Specifically, when the interface agent in the middle portion of the face paper is blocked and flows to the two sides of the baffle plate 54 , the excess interface agent enters the horizontal guide groove 543 and flows outward along the horizontal guide groove 543 .

[0122] The length of the baffle plate 54 is greater than the length of the face paper perpendicular to the conveying direction. Therefore, the interface agent flowing along the horizontal guide groove 542 will fall to the recovery tray 6 below on the outside of the face paper, that is, the side wall of the baffle plate 54, and will not contaminate the edge and bottom surface of the face paper.

[0123] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A gypsum board interface waterproof layer roller coating device, characterized in that: include: A detachable fixing frame (1) is arranged perpendicular to the conveying direction of the face paper and parallel to the face paper, and comprises an upper movable part and a lower fixing part; An upper pressing roller (2) is mounted on the upper movable portion of the fixed frame (1) and is used to evenly coat the interface agent carried on the upper surface of the face paper; A lower roller (3) is mounted on the lower fixed portion of the fixed frame (1) and is located directly below the upper pressing roller (2) and is used to support the face paper carrying the interface agent; A separation adjustment mechanism (4) is mounted on the lower fixed portion of the fixing frame (1) and connected to the upper movable portion of the fixing frame (1) and is used to control the upper movable portion of the fixing frame (1) to move up and down; A dispersing and cleaning mechanism (5) is mounted on the upper movable portion of the fixed frame (1), comprising a cleaning portion and a dispersing portion; The active end of the cleaning portion is close to the end surface of the upper pressing roller (2) and is used to scrape off the interface agent accumulated on the end surface of the upper pressing roller (2); the active end of the dispersing portion is close to the upper surface of the upstream face paper and is used to evenly distribute the interface agent carried on the face paper; The separation adjustment mechanism (4) is capable of manually or automatically adjusting the moving distance of the upper movable portion (11) of the fixing frame (1) according to the preset coating thickness of the interface agent; The dispersing and cleaning mechanism (5) cleans the end surface of the upper pressure roller (2) through the cleaning part, and evenly distributes the interface agent carried on the upstream face paper through the dispersing part, so as to prevent the interface agent from gathering on the front and edge of the face paper.

2. A gypsum board interface waterproof layer roller coating device according to claim 1, characterized in that: The lower fixing portion of the detachable fixing frame (1) comprises two symmetrically arranged supporting frames (11), the two supporting frames (11) being respectively mounted on two side frames of the face paper conveyor, and a motor for driving the lower roller (3) to rotate is mounted on one of the supporting frames (11); The upper movable portion of the detachable fixed frame (1) comprises a movable frame (12) mounted on a corresponding support frame (11), the two movable frames (12) are respectively located on both sides of the face paper conveyor, and a motor for driving the upper pressing roller (2) to rotate is mounted on one of the movable frames (12); Wherein, the movable frame (12) is slidably mounted on the supporting frame (11).

3. A gypsum board interface waterproof layer roller coating device according to claim 2, characterized in that: The separation adjustment mechanism (4) comprises an electric cylinder (41), wherein the electric cylinder (41) is fixed on the support frame (11), and a cylinder rod of the electric cylinder (41) is installed on the movable frame (12).

4. A gypsum board interface waterproof layer roller coating device according to claim 2 or 3, characterized in that: The cleaning part of the dispersion cleaning mechanism (5) comprises two spring pieces (51) and two scrapers (52); The two spring pieces (51) are respectively mounted on the two movable frames (12), and the two scrapers (52) are respectively mounted on the two spring pieces (51); The spring sheet (51) supports the scraper (52) at the end of the upper pressure roller (2), and enables the scraper (52) to contact the end surface of the upper pressure roller (2); Wherein, the scraper (52) is made of soft rubber material.

5. A gypsum board interface waterproof layer roller coating device according to claim 4, characterized in that: The dispersing part of the dispersing and cleaning mechanism (5) comprises a fixing plate (53) and a material blocking plate (54); The fixed plate (53) spans the face paper and is mounted on the two movable frames (12); the baffle plate (54) is mounted on the upstream side wall of the fixed plate (53), and the lower end of the baffle plate (53) is close to the surface of the face paper; The fixing plate (53) can be adjusted to a fixed height on the movable frame (12).

6. A gypsum board interface waterproof layer roller coating device according to claim 5, characterized in that: A scraping groove (521) is provided on one side of the scraper (52) close to the upper pressing roller (2), the scraping groove (521) abuts against the outer edge of the end surface of the upper pressing roller (2), and the inner angle of the scraping groove (521) matches the outer edge of the end surface of the upper pressing roller (2); The axial groove wall of the scraping groove (521) contacts the roller surface of the upper pressing roller (2), and the radial groove wall of the scraping groove (521) contacts the end surface of the upper pressing roller (2); Wherein, the upper pressure roller (2) is a mirror surface roller.

7. A gypsum board interface waterproof layer roller coating device according to claim 6, characterized in that: A guide plate (522) is provided on the outer wall of the scraper (52) parallel to the axis of the upper pressure roller (2), and a plurality of guide grooves (523) are provided on the surfaces of the guide plate (522) and the scraper (52); One end of the guide vane (522) away from the scraper (52) is mounted on the upstream side wall of the baffle plate (54), and the height of the connection between the guide vane (522) and the scraper (52) is higher than the height of the connection between the guide vane (522) and the baffle plate (54); Wherein, the guide plate (522) can be bent.

8. The device for roller-coating a waterproof layer on a gypsum board interface according to claim 7, characterized in that: A plurality of focusing grooves (541) are arranged on the upstream side wall of the baffle plate (54), the lower ends of the plurality of focusing grooves (541) converge in the middle on the upstream side wall of the baffle plate (54), and the upper ends of the plurality of focusing grooves (541) are symmetrically distributed and aligned with the plurality of guide grooves (523) on the two guide plates (522); The confluence of the lower ends of the plurality of converging grooves (541) forms a smooth transition with the outer wall of the baffle plate (54).

9. The device for roller-coating the gypsum board interface waterproof layer according to claim 8, characterized in that: Two spiral sleeves (542) are symmetrically mounted on the downstream side wall of the material baffle plate (54) so ​​as to rotate, and the spiral sleeves (542) are arranged on the side edge of the material baffle plate (54); A curvature adjustment screw (531) is rotatably arranged on the side wall of the fixing plate (53), the curvature adjustment screw (531) has two groups of symmetrically arranged threads (532), and the two screw sleeves (542) are symmetrically mounted on the curvature adjustment screw (531) and cooperate with the two threads (532); Wherein, the curvature adjustment screw (531) can be adjusted manually or automatically.

10. A gypsum board interface waterproof layer roller coating device according to claim 9, characterized in that: The length of the baffle plate (54) perpendicular to the conveying direction is greater than the length of the face paper perpendicular to the conveying direction, two horizontal guide grooves (543) are symmetrically arranged at the lower end of the upstream side wall of the baffle plate (54), and the distance between the two horizontal guide grooves (543) is less than the length of the face paper perpendicular to the conveying direction; A recovery tray (6) is provided on the support frame (11), the recovery tray (6) is located at the bottom of the lower roller (3), and the length of the recovery tray (6) perpendicular to the conveying direction is greater than the length of the baffle plate (54) perpendicular to the conveying direction; Wherein, the opposite sides of the two horizontal guide grooves (543) are smoothly transitioned to the bottom of the material blocking plate (54).

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