Plywood pressing device and pressing method

Abstract

The present invention discloses a plywood pressing device and pressing method in the technical field of plywood processing, comprising a frame, a pressing assembly, a residual glue cleaning assembly, an overflow glue scraping assembly and an overflow glue collecting assembly. When in use, the present invention places a plywood at the bottom of the pressing assembly, starts the pressing assembly to drive two pressing rollers to approach each other from both sides of the plywood and press the plywood. During the pressing process, the overflow glue on both sides of the plywood is scraped off by the overflow glue scraping assembly, and the scraped overflow glue is cleaned and collected by the overflow glue collecting assembly. When the pressing is completed, the residual glue on the surface of the pressing roller is cleaned by the residual glue cleaning assembly. The overflowed glue can be continuously cleaned and collected during the pressing process of the plywood, and the residual glue on the surface of the pressing roller is cleaned after each pressing of the plywood, so as to prevent the residual glue from remaining on the surface of the pressing roller and causing damage to the surface of the plywood in the subsequent pressing process.

Description

Technical Field

[0001] The invention relates to the technical field of plywood processing, in particular to a plywood pressing device and a pressing method. Background Art

[0002] Plywood is a common material for furniture and one of the three major types of man-made panels. It is also used in aircraft, ships, trains, automobiles, buildings, and packaging. A group of veneers is typically assembled and glued together with adjacent layers of wood grain perpendicular to each other. The surface and inner layers are typically symmetrically arranged on either side of the center layer or core. The slabs are made by staggering the glued veneers in a crisscross pattern along the wood grain. These slabs are pressed with or without heating. The number of layers is generally odd, but occasionally even. The physical and mechanical properties vary slightly in the longitudinal and transverse directions. Common types of plywood include three-ply and five-ply. Plywood improves wood utilization and is a major way to conserve wood.

[0003] When pressing plywood, most existing plywood pressing devices convey the plywood and pass it through fixed pressing rollers, which then press the plywood together. However, glue overflowing from the plywood during pressing is likely to adhere to the pressing rollers, making it inconvenient to clean the surfaces of the pressing rollers during long hours of operation. Glue residue remaining on the surfaces of the pressing rollers is likely to leave glue marks on the plywood surfaces during subsequent pressing processes, potentially damaging the plywood surfaces, and other issues. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid blurring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the existing plywood pressing device, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a plywood pressing device and pressing method, which can continuously clean and collect overflowed glue during the pressing process of plywood, and clean the residual glue on the surface of the pressing roller after each pressing of the plywood, so as to prevent the residual glue from remaining on the surface of the pressing roller and causing damage to the plywood surface during the subsequent pressing process.

[0007] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A plywood pressing device, comprising:

[0009] A frame, wherein the side walls of the frame are provided with a receiving cavity, and the symmetrical side walls of the frame are provided with a rectangular guide groove;

[0010] The pressing assembly includes two fixed plates symmetrically mounted on the top of the frame, two mobile racks symmetrically slidably connected to the inside of the accommodating cavity, and two lifting racks slidably connected to the inside of the two mobile racks, the side walls of the fixed plates are equipped with motors, the motors are connected to the two mobile racks and drive the two mobile racks to move relative to each other, the symmetrical side walls of the mobile racks are provided with first guide grooves, a pressure roller is rotatably connected to the inside of the lifting rack, shaft rods are installed at both ends of the pressure rollers, the shaft rods pass through the first guide grooves and extend into the inside of the rectangular guide grooves, when the two mobile racks approach each other, the two shaft rods are located below the rectangular guide grooves, and when the two mobile racks move away from each other, the two shaft rods are located above the rectangular guide grooves;

[0011] A residual glue cleaning assembly is installed on the top of the movable frame. When the two movable frames move away from each other, the residual glue cleaning assembly is connected to the pressure roller. The two movable frames move away from each other, driving the residual glue cleaning assembly to clean residual glue on the surface of the pressure roller.

[0012] An overflow glue scraping assembly includes a fixed frame mounted at the bottom of the movable frame and two scrapers symmetrically located inside the fixed frame. The scrapers are connected to the lifting frame. When the lifting frame moves downward, the two scrapers are driven toward each other. When the lifting frame moves upward, the two scrapers are driven away from each other.

[0013] The overflow glue collecting assembly is installed on the side wall of the fixed frame. When the two movable frames are close to each other, the overflow glue collecting assembly is connected to the pressure roller and is driven by the pressure roller to collect the overflowed glue.

[0014] As a preferred solution of the plywood pressing device described in the present invention, a motor is installed on the side wall of one of the fixed plates, the output end of the motor extends between the two fixed plates and is installed with a first positive and negative threaded rod, two second guide grooves are symmetrically provided on the top of the frame, a fixed block is installed on the top of the movable frame, the two fixed blocks respectively penetrate and extend through the two second guide grooves, a first threaded hole is provided on the side wall of the fixed block, the first positive and negative threaded rod rotates and passes through the first threaded hole, and a first gear is installed on the other end of the shaft.

[0015] As a preferred embodiment of the plywood pressing device of the present invention, a slot is provided on the top of the lifting frame;

[0016] The residual glue cleaning assembly includes a slider slidingly located at the top of the movable frame, a first reciprocating threaded rod rotatably connected to the inside of the movable frame, and a third gear rotatably connected to the side wall of the movable frame, the side wall of the movable frame is rotatably connected to the first pulley, the first pulley and the first reciprocating threaded rod are coaxially fixedly connected, a second pulley is installed on the side wall of the third gear, and the first pulley and the second pulley are connected by a belt, when the shaft is located above the rectangular guide groove, the bottom of the slider passes through the slot and extends into the interior of the lifting frame.

[0017] As a preferred embodiment of the plywood pressing device of the present invention, a fourth guide groove is provided on the top of the movable frame, and a second rack is installed inside the fourth guide groove;

[0018] A first reciprocating threaded hole is provided on the side wall of the slider, and the first reciprocating threaded rod rotates through the first reciprocating threaded hole. A grinding wheel is rotatably connected to the bottom of the slider, and a second gear is rotatably connected to the top of the slider. The second gear and the grinding wheel are coaxially fixedly connected, and the second gear is located inside the fourth guide groove and meshes with the second rack.

[0019] As a preferred solution of the plywood pressing device described in the present invention, support feet are installed at the bottom of the frame, and racks are installed on the side walls of the frame. When the two movable frames move away from each other, the shaft is located above the rectangular guide groove, and the first gear on one side is engaged with the rack.

[0020] As a preferred solution of the plywood pressing device described in the present invention, two third guide grooves are symmetrically provided in the bottom of the accommodating cavity, the fixed frame is rotatably connected to the second positive and negative threaded rod, the second positive and negative threaded rod is equipped with a third pulley, the movable frame is rotatably connected to the fourth gear, the side wall of the lifting frame is equipped with a third rack, the third rack is meshed with the fourth gear, the side wall of the fourth gear is equipped with a fourth pulley, the fourth pulley and the third pulley are connected by a belt, the scraper bottom extends out of the third guide groove and is equipped with an ear plate, the side wall of the ear plate is provided with a second threaded hole, the second positive and negative threaded rod rotates through the second threaded hole, the side wall of the scraper is equipped with an L-shaped scraper, and the side wall of the scraper is provided with a glue outlet hole.

[0021] As a preferred solution of the plywood pressing device described in the present invention, the overflow glue collection assembly includes a collection tube installed on the side wall of the fixing frame and a piston located inside the collection tube, a first hose is installed on the side wall of the collection tube, the other end of the first hose is connected to the glue outlet hole, a first one-way valve is installed on the body of the first hose, a second hose is installed on the other side wall of the collection tube, and a second one-way valve is installed on the body of the second hose.

[0022] As a preferred solution of the plywood pressing device described in the present invention, the side wall of the fixing frame is rotatably connected to a fifth gear, the side wall of the fifth gear is installed with a first helical gear, the side wall of the fixing frame is installed with a second fixing plate, the top of the second fixing plate is rotatably connected to a second helical gear, the second helical gear is meshed with the first helical gear, the bottom of the second fixing plate is rotatably connected to a second reciprocating threaded rod, the second helical gear is coaxially fixedly connected to the second reciprocating threaded rod, a fixing rod is installed on the top of the piston, a second reciprocating threaded hole is opened on the top of the fixing rod, and the second reciprocating threaded rod rotates and extends into the interior of the second reciprocating threaded hole.

[0023] The present invention also provides a pressing method for a plywood pressing device, wherein the method uses the plywood pressing device as described above, and comprises the following steps:

[0024] S1. Feed the glued plywood into the accommodating chamber, start the motor to rotate the first positive and negative threaded rod, use the screw structure to push the two moving frames away from each other, and the two lifting frames move downward along the rectangular guide groove to a position below the rectangular guide groove. The bottom of the pressure roller abuts against the top of the plywood, and at the same time, the third rack drives the fourth gear to rotate, which in turn drives the second positive and negative threaded rod to rotate. The two scrapers approach each other, the L-shaped scraper is pressed against both sides of the plywood, and the first gear is meshed with the fifth gear.

[0025] S2. When the two movable frames approach each other, they drive the two pressing rollers to move along the top of the plywood and press the plywood together. At the same time, the lifting frame drives the L-shaped scraper to move along both sides of the plywood to scrape off the glue overflowing during pressing.

[0026] S3. When the pressure roller moves and rotates along the top of the plywood, the first gear drives the fifth gear to rotate, which in turn drives the second reciprocating threaded rod to rotate, pushing the fixed rod and the piston to reciprocate inside the collection pipe, sucking out and collecting the glue scraped by the L-shaped scraper through the glue outlet hole;

[0027] S4. When the two movable frames are moved away from each other and into position, the two lifting frames slide along the rectangular guide groove to the position above the rectangular guide groove, and the lifting frame moves upward to drive the two scrapers to move away from each other and separate from the plywood, and the slider passes through the slot, and the grinding wheel abuts against the top of the pressure roller, and the first gear on one side is engaged with the third gear, and the first gear on the other side is engaged with the rack, and the plywood is taken out and replaced. As the two movable frames move away from each other, the rack drives the pressure roller to rotate, and drives the third gear and the first reciprocating threaded rod to rotate, pushing the slider to slide inside the slot, and when the slider moves, the second rack drives the second gear and the grinding wheel to rotate, grinding and cleaning the surface of the pressure roller, and erasing the residual glue on the surface of the pressure roller.

[0028] Compared with the prior art: a pressing assembly is provided inside the frame, a residual glue cleaning assembly is provided inside the pressing assembly, an overflow glue scraping assembly is provided at the bottom of the pressing assembly, and an overflow glue collecting assembly is provided on the side wall of the pressing assembly. When in use, the plywood is placed at the bottom of the pressing assembly, the pressing assembly is started to drive the two pressing rollers to approach each other from both sides of the plywood and press the plywood. During the pressing process, the overflow glue on both sides of the plywood is scraped off by the overflow glue scraping assembly, and the scraped overflow glue is cleaned and collected by the overflow glue collecting assembly. When the pressing is completed, the residual glue on the surface of the pressing roller is cleaned by the residual glue cleaning assembly. The overflowed glue can be continuously cleaned and collected during the pressing process of the plywood, and the residual glue on the surface of the pressing roller can be cleaned after each pressing of the plywood to prevent the residual glue from remaining on the surface of the pressing roller and causing damage to the surface of the plywood in the subsequent pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0030] Figure 1 This is an overall structural diagram of a plywood pressing device according to the present invention;

[0031] Figure 2 This is a diagram showing the internal structure of a frame of a plywood pressing device according to the present invention;

[0032] Figure 3 This is a structural diagram of a pressing assembly of a plywood pressing device according to the present invention;

[0033] Figure 4 This is a structural diagram of a lifting frame of a plywood pressing device of the present invention;

[0034] Figure 5 This is a structural diagram of a movable frame of a plywood pressing device according to the present invention;

[0035] Figure 6 A plywood pressing device according to the present invention Figure 5 Structural diagram at point A in the middle;

[0036] Figure 7 This is a structural diagram of a scraper of a plywood pressing device according to the present invention;

[0037] Figure 8 This is a structural diagram of an overflow glue collecting assembly of a plywood pressing device according to the present invention;

[0038] Figure 9 This is a side structural diagram of a frame of a plywood pressing device according to the present invention. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0041] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0042] The present invention provides a plywood pressing device and pressing method, which can continuously clean and collect overflowed glue during the plywood pressing process, and clean the residual glue on the surface of the pressing roller after each plywood pressing, so as to prevent the residual glue from remaining on the surface of the pressing roller and causing damage to the plywood surface during the subsequent pressing process. Example 1

[0043] Figure 1-3 The diagram shows the structure of the first embodiment of a plywood pressing device of the present invention. Figure 1-Figure 3 A plywood pressing device of this embodiment includes a frame 100, a pressing assembly 200, a residual glue cleaning assembly 300, an overflow glue scraping assembly 400 and an overflow glue collecting assembly 500.

[0044] A receiving cavity 110 is defined on a side wall of the frame 100 , and a rectangular guide groove 110 a is defined on a symmetrical side wall of the frame 100 .

[0045] The pressing assembly 200 includes two fixed plates 210 symmetrically mounted on the top of the frame 100, two movable frames 220 symmetrically slidably connected to the inside of the accommodating chamber 110, and two lifting frames 230 slidably connected to the inside of the two movable frames 220, respectively. A motor 210a is mounted on the side wall of the fixed plate 210, and the motor 210a is connected to the two movable frames 220 and drives the two movable frames 220 to move relative to each other. A first guide groove 220c is provided on the symmetrical side wall of the movable frames 220, and a pressure roller 230a is rotatably connected to the lifting frame 230. A shaft 230a-1 is mounted on both ends of the pressure roller 230a, and the shaft 230a-1 passes through the first guide groove 220c and extends into the inside of the rectangular guide groove 110a. When the two movable frames 220 approach each other, the two shafts 230a-1 are located below the rectangular guide groove 110a. When When the two moving frames 220 move away from each other, the two shafts 230a-1 are located above the rectangular guide groove 110a. When the motor 210a drives the two moving frames 220 to move away from each other, the two moving frames 220 drive the two lifting frames 230 to move away from each other, and the shaft 230a-1 slides along the upper section of the rectangular guide groove 110a until the two moving frames 220 move away from each other, and the shaft 230a-1 slides along the upper section of the rectangular guide groove 110a until the two moving frames 220 move away from each other, and the shaft 230a-1 slides along the rectangular guide groove 110a to the lower section of the rectangular guide groove 110a. Conversely, when the two moving frames 220 move closer to each other, the two moving frames 220 drive the two lifting frames 230 to move closer to each other, and the shaft 230a-1 slides along the lower section of the rectangular guide groove 110a until the two moving frames 220 move closer to each other, and the shaft 230a-1 slides along the rectangular guide groove 110a to the upper section of the rectangular guide groove 110a.

[0046] The residual glue cleaning assembly 300 is installed at the top of the movable frame 220. When the two movable frames 220 move away from each other, the residual glue cleaning assembly 300 is connected to the pressure roller 230a. The two movable frames 220 move away from each other, driving the residual glue cleaning assembly 300 to clean the residual glue on the surface of the pressure roller 230a. When the two shafts 230a-1 slide along the rectangular guide groove 110a to the upper section of the rectangular guide groove 110a, the pressure roller 230a is connected to the residual glue cleaning assembly 300, and as the two movable frames 220 drive the two lifting frames 230 and the pressure roller 230a to move away from each other, the pressure roller 230a drives the residual glue cleaning assembly 300 to grind and clean the residual glue on the surface of the pressure roller 230a.

[0047] The overflow glue scraping assembly 400 includes a fixed frame 410 installed at the bottom of the movable frame 220 and two scrapers 420 symmetrically located inside the fixed frame 410. The scrapers 420 are connected to the lifting frame 230. When the lifting frame 230 moves downward, the two scrapers 420 are driven to approach each other. When the lifting frame 230 moves upward, the two scrapers 420 are driven to move away from each other. When the shaft 230a-1 slides downward along the rectangular guide groove 110a to the lower section of the rectangular guide groove 110a, the lifting frame 230 slides downward and drives the two scrapers 420 to approach each other and adhere to the two sides of the plywood. As the movable frame 220 moves, it drives the fixed frame 410 and the scrapers 420 to move. The scrapers 420 clean up the overflow glue generated when the two sides of the plywood are pressed together.

[0048] The overflow glue collecting assembly 500 is installed on the side wall of the fixed frame 410. When the two movable frames 220 approach each other, the overflow glue collecting assembly 500 is connected to the pressure roller 230a and is driven by the pressure roller 230a to collect the overflowed glue.

[0049] Combine Figure 1-Figure 3 , a plywood pressing device of this embodiment, when in use, pushes the plywood into the accommodating chamber 110 and locates below the pressing roller 230a, starts the motor 210a to drive the two movable frames 220 to move away from each other, and the shaft 230a-1 slides to the position below the rectangular guide groove 110a, at this time, the bottom of the pressing roller 230a abuts against the top of the plywood, and the side walls of the scraper 420 are close to both sides of the plywood. At the same time, the pressing roller 230a is connected to the overflow glue collecting assembly 500, and the motor 210a is started to drive the two movable frames 220 to move closer to each other, and the two movable frames 220 drive the two lifting frames 230 to move closer to each other, and the pressing roller 230a moves along The top of the plywood slides and presses the plywood. During the movement of the movable frame 220, the scraper 420 is driven to move along both sides of the plywood to scrape off the excess glue on both sides of the plywood, and the excess glue collecting assembly 500 is driven to clean and collect the scraped excess glue until the two movable frames 220 are close to each other and in place. The shaft 230a-1 slides to the position above the rectangular guide groove 110a, and the pressure roller 230a is upwardly connected to the residual glue cleaning assembly 300. At this time, the plywood is taken out and replaced. When the motor 210a is started to drive the two fixed blocks 220a away from each other, the residual glue cleaning assembly 300 can clean the residual glue on the surface of the pressure roller 230a. Example 2

[0050] Figure 1-9 The diagram shows the structure of the second embodiment of the plywood pressing device of the present invention. Figures 1-9 , different from the above embodiment, a plywood pressing device of this embodiment further includes:

[0051] A motor 210a is installed on the side wall of one of the fixed plates 210. The output end of the motor 210a extends between the two fixed plates 210 and is installed with a first positive and negative threaded rod 210a-1. Two second guide grooves 110b are symmetrically provided on the top of the frame 100. A fixed block 220a is installed on the top of the movable frame 220. The two fixed blocks 220a extend through the two second guide grooves 110b respectively. A first threaded hole 220a-1 is provided on the side wall of the fixed block 220a. The first positive and negative threaded rod 210a-1 rotates through the first threaded hole 220a-1. The other end of the shaft 230a-1 is installed with a first gear 230a-2. When the motor 210a is started to drive the first positive and negative threaded rod 210a-1 to rotate, the first positive and negative threaded rod 210a-1 rotates. The rod 210a-1 uses a screw structure to push the two fixed blocks 220a to drive the two mobile frames 220 away from each other, and the shaft 230a-1 slides along the upper section of the rectangular guide groove 110a until the two mobile frames 220 are far away from each other. The shaft 230a-1 slides downward along the rectangular guide groove 110a to the lower section of the rectangular guide groove 110a, and the first positive and negative threaded rod 210a-1 is reversed by starting the motor 210a. The screw structure is used to push the two mobile frames 220 to drive the two mobile frames 220 closer to each other, and the shaft 230a-1 slides along the lower section of the rectangular guide groove 110a until the two mobile frames 220 are close to each other. The shaft 230a-1 slides upward along the rectangular guide groove 110a to the upper section of the rectangular guide groove 110a.

[0052] The top of the lifting frame 230 is provided with a slot 230b, and the residual glue cleaning assembly 300 includes a slider 310 slidingly located at the top of the moving frame 220, a first reciprocating threaded rod 320 rotatably connected to the inside of the moving frame 220, and a third gear 330 rotatably connected to the side wall of the moving frame 220. The side wall of the moving frame 220 is rotatably connected to a first pulley 320a, the first pulley 320a and the first reciprocating threaded rod 320 are coaxially fixedly connected, and a second pulley 330a is installed on the side wall of the third gear 330. The first pulley 320a and the second pulley 330a are connected by a belt. When the shaft 230a-1 is located above the rectangular guide groove 110a, the bottom of the slider 310 penetrates The sliding block 310 is provided with a first reciprocating threaded hole 310a, and the first reciprocating threaded rod 320 rotates through the first reciprocating threaded hole 310a. The bottom of the sliding block 310 is rotatably connected to the grinding wheel 310b, and the top of the sliding block 310 is rotatably connected to the second gear 310c. The second gear 310c is coaxially fixedly connected to the grinding wheel 310b. The second gear 310c is located in the fourth guide groove 220b and meshes with the second rack 220b-1. The support foot 120 is installed at the bottom of the frame 100. , a rack 130 is installed on the side wall of the frame 100. When the two moving frames 220 move away from each other, the shaft 230a-1 is located in the upper part of the rectangular guide groove 110a, and the first gear 230a-2 on one side is engaged with the rack 130. When the shaft 230a-1 slides along the rectangular guide groove 110a to the upper part of the rectangular guide groove 110a, the first gear 230a-2 on one side is engaged with the third gear 330, and the first gear 230a-2 on the other side is engaged with the rack 130. At this time, the slider 310 passes through the slot 230b and extends into the interior of the lifting frame 230. The grinding wheel 310b is attached to the bottom of the pressure roller 230a. As the two moving frames 220 drive the two lifting frames 230 to move toward each other, the two lifting frames 230 are engaged. When moving away, the rack 130 drives the first gear 230a-2 on one side to rotate, and then drives the pressure roller 230a and the first gear 230a-2 on the other side to rotate. The first gear 230a-2 on the other side drives the third gear 330 and the second pulley 330a to rotate. When the second pulley 330a rotates, it uses the belt to drive the first pulley 320a and the first reciprocating threaded rod 320 to rotate. When the first reciprocating threaded rod 320 rotates, it pushes the slider 310 to move back and forth along the slot 230b. When the slider 310 moves, the second rack 220b-1 drives the second gear 310c and the grinding wheel 310b to rotate. When the grinding wheel 310b rotates, the residual glue on the surface of the pressure roller 230a is polished and cleaned.

[0053] Two third guide grooves 110c are symmetrically provided at the bottom of the accommodating chamber 110, a second positive and negative threaded rod 410a is rotatably connected to the interior of the fixed frame 410, a third pulley 410a-1 is installed on the rod body of the second positive and negative threaded rod 410a, a fourth gear 430 is rotatably connected to the interior of the movable frame 220, a third rack 230c is installed on the side wall of the lifting frame 230, the third rack 230c is meshed with the fourth gear 430, a fourth pulley 430a is installed on the side wall of the fourth gear 430, and a pulley 430a is connected to the fourth pulley 430a and the third pulley 410a-1 via a pulley. The scraper 420 extends out of the third guide groove 110c at the bottom and is installed with an ear plate 420b. The side wall of the ear plate 420b is provided with a second threaded hole 420b-1. The second positive and negative threaded rod 410a rotates through the second threaded hole 420b-1. The side wall of the scraper 420 is provided with an L-shaped scraper 420a. The side wall of the scraper 420 is provided with a glue outlet hole 420a-1. When the shaft 230a-1 slides downward along the rectangular guide groove 110a to the lower section of the rectangular guide groove 110a, the lifting frame 230 drives the third rack 230c to slide downward, and the third rack 230 c drives the fourth gear 430 and the fourth pulley 430a to rotate, and the fourth pulley 430a uses the belt to drive the third pulley 410a-1 and the second positive and negative threaded rod 410a to rotate. When the second positive and negative threaded rod 410a rotates, the screw structure is used to push the two ear plates 420b to drive the two scrapers 420 to move closer to each other, so that the two L-shaped scrapers 420a are close to both sides of the plywood. At this time, as the two movable frames 220 move closer to each other, the two fixed frames 410 move closer to each other, and the fixed frame 410 drives the scraper 420 and the L-shaped scraper 420a to move. When 420a moves, the excess glue generated when the two sides of the plywood are pressed together is scraped off. When the shaft 230a-1 slides upward along the rectangular guide groove 110a to the upper part of the rectangular guide groove 110a, the lifting frame 230 drives the third rack 230c to slide upward, and the third rack 230c drives the fourth gear 430 and the fourth pulley 430a to reverse, and then drives the second forward and reverse threaded rod 410a to reverse, and uses the screw structure to push the two ear plates 420b to drive the two scrapers 420 away from each other, so that the two scrapers 420 and the L-shaped scraper 420a are separated from the two sides of the plywood.

[0054] The overflow glue collection assembly 500 includes a collection tube 510 installed on the side wall of the fixed frame 410 and a piston 520 located inside the collection tube 510. A first hose 510a is installed on the side wall of the collection tube 510. The other end of the first hose 510a is connected to the glue outlet hole 420a-1. A first one-way valve 510a-1 is installed on the body of the first hose 510a. A second hose 510b is installed on the other side wall of the collection tube 510. A second one-way valve 510b-1 is installed on the body of the second hose 510b. The side wall of the fixed frame 410 is rotatably connected to the fifth gear 530. The side wall of the fifth gear 530 is installed with a first bevel gear 530a. The side wall of the fixed frame 410 is installed with a second fixed plate. 540, the top of the second fixed plate 540 is rotatably connected to the second bevel gear 540a, the second bevel gear 540a is meshed with the first bevel gear 530a, the bottom of the second fixed plate 540 is rotatably connected to the second reciprocating threaded rod 540b, the second bevel gear 540a is coaxially fixedly connected to the second reciprocating threaded rod 540b, a fixed rod 520a is installed on the top of the piston 520, and a second reciprocating threaded hole 520a-1 is opened at the top of the fixed rod 520a, the second reciprocating threaded rod 540b rotates and extends into the second reciprocating threaded hole 520a-1. What is not shown in the figure is that the other end of the second hose 510b is connected to the external collection device. When the shaft 230a-1 moves along the torque When the rectangular guide groove 110a slides downward to the lower section of the rectangular guide groove 110a, the first gear 230a-2 is engaged with the fifth gear 530. As the movable frame 220 drives the pressing roller 230a to move along the surface of the plywood to press the plywood, the pressing roller 230a rotates due to friction when it moves. The pressing roller 230a drives the first gear 230a-2 to rotate. The first gear 230a-2 drives the fifth gear 530 and the first bevel gear 530a to rotate. The first bevel gear 530a drives the second bevel gear 540a and the second reciprocating threaded rod 540b to rotate. When the second reciprocating threaded rod 540b rotates, it uses the screw structure to push the fixed rod 520 a and the piston 520 move back and forth up and down inside the collecting pipe 510. When the piston 520 moves upward inside the collecting pipe 510, the first one-way valve 510a-1 opens and the second one-way valve 510b-1 closes. At this time, the first hose 510a sucks the overflow glue scraped by the L-shaped scraper 420a into the collecting pipe 510 through the glue outlet hole 420a-1. When the piston 520 moves downward inside the collecting pipe 510, the first one-way valve 510a-1 closes and the second one-way valve 510b-1 opens. At this time, the overflow glue inside the collecting pipe 510 is transported to the external collection equipment through the second hose 510b, so that the overflow glue can be cleaned and collected when the plywood is pressed.

[0055] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A plywood pressing device, characterized in that: include: A frame (100), wherein a side wall of the frame (100) is provided with an accommodating cavity (110), and a symmetrical side wall of the frame (100) is provided with a rectangular guide groove (110a); The pressing assembly (200) comprises two fixed plates (210) symmetrically mounted on the top of the frame (100), two movable frames (220) symmetrically slidably connected to the inside of the accommodating cavity (110), and two lifting frames (230) respectively slidably connected to the inside of the two movable frames (220), wherein a motor (210a) is mounted on the side wall of the fixed plate (210), the motor (210a) is connected to the two movable frames (220) and drives the two movable frames (220) to move relative to each other, and a first guide groove (220c) is opened on the symmetrical side wall of the movable frame (220). A pressure roller (230a) is rotatably connected inside the lifting frame (230), and shafts (230a-1) are installed at both ends of the pressure roller (230a). The shafts (230a-1) pass through the first guide groove (220c) and extend into the rectangular guide groove (110a). When the two movable frames (220) approach each other, the two shafts (230a-1) are located below the rectangular guide groove (110a); when the two movable frames (220) move away from each other, the two shafts (230a-1) are located above the rectangular guide groove (110a). A residual glue cleaning component (300) is installed on the top of the movable frame (220). When the two movable frames (220) move away from each other, the residual glue cleaning component (300) is connected to the pressure roller (230a). The two movable frames (220) move away from each other, driving the residual glue cleaning component (300) to clean residual glue on the surface of the pressure roller (230a). An overflow glue scraping assembly (400) comprises a fixed frame (410) mounted at the bottom of the movable frame (220) and two scrapers (420) symmetrically located inside the fixed frame (410), wherein the scrapers (420) are connected to the lifting frame (230), and when the lifting frame (230) moves downward, the two scrapers (420) are driven toward each other, and when the lifting frame (230) moves upward, the two scrapers (420) are driven away from each other; An overflow glue collecting assembly (500) is mounted on a side wall of the fixed frame (410). When the two movable frames (220) approach each other, the overflow glue collecting assembly (500) is connected to the pressure roller (230a) and is driven by the pressure roller (230a) to collect overflowed glue.

2. The plywood pressing device according to claim 1, characterized in that: A motor (210a) is installed on the side wall of one of the fixed plates (210), the output end of the motor (210a) extends between the two fixed plates (210) and is installed with a first positive and negative threaded rod (210a-1), two second guide grooves (110b) are symmetrically provided on the top of the frame (100), a fixed block (220a) is installed on the top of the movable frame (220), the two fixed blocks (220a) respectively penetrate and extend through the two second guide grooves (110b), a first threaded hole (220a-1) is provided on the side wall of the fixed block (220a), the first positive and negative threaded rod (210a-1) rotates and penetrates the first threaded hole (220a-1), and a first gear (230a-2) is installed on the other end of the shaft (230a-1).

3. The plywood pressing device according to claim 1, characterized in that: A slot (230b) is provided on the top of the lifting frame (230); The residual glue cleaning assembly (300) includes a slider (310) slidingly located at the top of the movable frame (220), a first reciprocating threaded rod (320) rotatably connected to the inside of the movable frame (220), and a third gear (330) rotatably connected to the side wall of the movable frame (220), wherein the side wall of the movable frame (220) is rotatably connected to a first pulley (320a), the first pulley (320a) and the first reciprocating threaded rod (320) are coaxially fixedly connected, and a second pulley (330a) is installed on the side wall of the third gear (330), and the first pulley (320a) and the second pulley (330a) are connected by a belt. When the shaft (230a-1) is located above the rectangular guide groove (110a), the bottom of the slider (310) passes through the slot (230b) and extends into the interior of the lifting frame (230).

4. The plywood pressing device according to claim 3, characterized in that: A fourth guide groove (220b) is provided at the top of the movable frame (220), and a second rack (220b-1) is installed inside the fourth guide groove (220b); A first reciprocating threaded hole (310a) is provided on a side wall of the slider (310), the first reciprocating threaded rod (320) rotates and passes through the first reciprocating threaded hole (310a), the bottom of the slider (310) is rotatably connected to a grinding wheel (310b), the top of the slider (310) is rotatably connected to a second gear (310c), the second gear (310c) and the grinding wheel (310b) are coaxially fixedly connected, and the second gear (310c) is located inside the fourth guide groove (220b) and meshes with the second rack (220b-1).

5. The plywood pressing device according to claim 2, characterized in that: A support foot (120) is installed at the bottom of the frame (100), and a rack (130) is installed on the side wall of the frame (100); when the two movable frames (220) move away from each other, the shaft (230a-1) is located above the rectangular guide groove (110a), and the first gear (230a-2) on one side is engaged with the rack (130).

6. The plywood pressing device according to claim 1, characterized in that: Two third guide grooves (110c) are symmetrically provided at the bottom of the accommodating cavity (110); a second positive and negative threaded rod (410a) is rotatably connected to the interior of the fixed frame (410); a third pulley (410a-1) is installed on the body of the second positive and negative threaded rod (410a); a fourth gear (430) is rotatably connected to the interior of the movable frame (220); a third rack (230c) is installed on the side wall of the lifting frame (230); the third rack (230c) is meshed with the fourth gear (430); a fourth pulley is installed on the side wall of the fourth gear (430). (430a), the fourth pulley (430a) is connected to the third pulley (410a-1) by a belt, the bottom of the scraper (420) extends out of the third guide groove (110c) and is installed with an ear plate (420b), the side wall of the ear plate (420b) is provided with a second threaded hole (420b-1), the second positive and negative threaded rod (410a) rotates through the second threaded hole (420b-1), the side wall of the scraper (420) is installed with an L-shaped scraper (420a), and the side wall of the scraper (420) is provided with a glue outlet hole (420a-1).

7. The plywood pressing device according to claim 6, characterized in that: The overflow glue collection assembly (500) comprises a collection pipe (510) mounted on a side wall of the fixing frame (410) and a piston (520) located inside the collection pipe (510); a first hose (510a) is mounted on the side wall of the collection pipe (510); the other end of the first hose (510a) is connected to the glue outlet hole (420a-1); a first one-way valve (510a-1) is mounted on the body of the first hose (510a); a second hose (510b) is mounted on the other side wall of the collection pipe (510); and a second one-way valve (510b-1) is mounted on the body of the second hose (510b).

8. The plywood pressing device according to claim 7, characterized in that: The side wall of the fixing frame (410) is rotatably connected to a fifth gear (530), and a first bevel gear (530a) is installed on the side wall of the fifth gear (530). A second fixing plate (540) is installed on the side wall of the fixing frame (410). The top of the second fixing plate (540) is rotatably connected to a second bevel gear (540a), and the second bevel gear (540a) is meshed with the first bevel gear (530a). The bottom of the second fixing plate (540) is rotatably connected to a second reciprocating threaded rod (540b), and the second bevel gear (540a) and the second reciprocating threaded rod (540b) are coaxially fixedly connected. A fixing rod (520a) is installed on the top of the piston (520), and a second reciprocating threaded hole (520a-1) is opened at the top of the fixing rod (520a). The second reciprocating threaded rod (540b) rotates and extends into the interior of the second reciprocating threaded hole (520a-1).

9. A plywood pressing method, implemented by the plywood pressing device according to claim 1, characterized in that: Here are the steps: S1. The glued plywood is fed into the accommodating chamber (110), the motor (210a) is started to drive the first positive and negative threaded rod (210a-1) to rotate, the screw rod structure is used to push the two moving frames (220) away from each other, the two lifting frames (230) move downward along the rectangular guide groove (110a) to a position below the rectangular guide groove (110a), the bottom of the pressure roller (230a) abuts against the top of the plywood, and at the same time the third rack (230c) drives the fourth gear (430) to rotate, and then drives the second positive and negative threaded rod (410a) to rotate, the two scrapers (420) approach each other, the L-shaped scraper (420a) is pressed against both sides of the plywood, and the first gear (230a-2) is meshed with the fifth gear (530); S2. When the two movable frames (220) approach each other, they drive the two pressing rollers (230a) to move along the top of the plywood and press the plywood together. At the same time, the lifting frame (230) drives the L-shaped scraper (420a) to move along both sides of the plywood to scrape off the glue overflowed during pressing; S3. When the pressure roller (230a) moves and rotates along the top of the plywood, the first gear (230a-2) drives the fifth gear (530) to rotate, which in turn drives the second reciprocating threaded rod (540b) to rotate, pushing the fixed rod (520a) and the piston (520) to reciprocate inside the collection tube (510), sucking out and collecting the glue scraped off by the L-shaped scraper (420a) through the glue outlet hole (420a-1); S4. When the two moving frames (220) are moved away from each other and into position, the two lifting frames (230) slide along the rectangular guide groove (110a) to a position above the rectangular guide groove (110a), and the lifting frames (230) move upward to drive the two scrapers (420) to move away from each other and separate from the plywood. The slider (310) passes through the slot (230b), and the grinding wheel (310b) abuts against the top of the pressure roller (230a). The first gear (230a-2) on one side is meshed with the third gear (330), and the first gear (230a-2) on the other side is meshed with the rack. (130) engage, the plywood is taken out and replaced, as the two movable frames (220) move away from each other, the rack (130) drives the pressure roller (230a) to rotate, and drives the third gear (330) and the first reciprocating threaded rod (320) to rotate, pushing the slider (310) to slide inside the slot (230b), when the slider (310) moves, the second rack (220b-1) drives the second gear (310c) and the grinding wheel (310b) to rotate, grinding and cleaning the surface of the pressure roller (230a), and erasing the residual glue on the surface of the pressure roller (230a).

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