A sheet material vacuum laminating device

Abstract

The present invention discloses a sheet vacuum laminating device, which includes a box body. An electric push rod is installed on the top of the box body. The telescopic rod of the electric push rod extends into the box body and is connected to a lifting frame with an open bottom. A rectangular installation groove is formed on the lower end surface of the lifting frame. A pressure application airbag is connected in the rectangular installation groove on the lifting frame. A limiting mechanism is provided on the lifting frame, and a discharging mechanism is provided in the box body. Four clamps can correct the upper and lower layer sheets so that the upper and lower layer sheets are centered and aligned, and can effectively limit the upper and lower layer sheets to avoid displacement and misalignment between the sheets during the pressing process, thereby avoiding damage to the sheets, improving the quality of the finished sheets, improving the qualification rate of sheet lamination, and the clamps are elastically arranged, so that the sheets with different thicknesses and different sizes can be limited, and thus it can be applied to sheets with different thicknesses and different sizes, with strong practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet processing, and particularly relates to a sheet vacuum pressing device. Background Art

[0002] Wood boards are wood sheets made of complete wood. These boards are strong, durable, and have natural textures, making them an excellent choice in decoration. When wood board processing manufacturers process wood boards, in order to meet the requirements of different thicknesses, sometimes two or more wood boards need to be bonded and then sold and used. Currently, when manufacturers bond wood boards, generally, after manually brushing glue, multiple layers of wood boards are bonded together and the wood boards reach a certain thickness through the pressure of a hydraulic mechanism; in the actual operation process, there are always bubbles that cannot be discharged between the wood boards, affecting the bonding effect between the wood boards.

[0003] After retrieval, a patent with the patent publication number: CN218138634U, a wood board pressing device for composite wood boards, includes a bracket. A box body is fixedly installed at the top of the bracket. A box door is hinged to the opening side of the box body. A rotating shaft is rotatably installed at the bottom inside the box body. The lower end of the rotating shaft penetrates the box body. A plurality of grooves distributed in a circumferential array are arranged inside the box body. Connecting blocks are fixedly installed on the grooves, and the ends of the connecting blocks are fixedly connected to the rotating shaft. A plurality of first oil cylinders distributed in a circumferential array are fixedly installed at the top inside the box body. By placing two wood boards in the grooves, starting the vacuum pumping device to pump the inside of the box body to an approximately vacuum state and maintaining the air pressure of the box body, one of the grooves is rotated between the pressing plate and the backing plate, and the pressing plate moves into the groove, so that the pressing plate presses the two wood boards, and the bubbles between the two wood boards are effectively reduced.

[0004] Although the above patent can perform vacuum pressing on the sheets, the above patent does not provide a structure capable of limiting the upper and lower layers of sheets. Thus, when the above patent presses the sheets, it cannot limit the upper and lower layers of sheets. When applying a downward pressure for pressing treatment, it may cause displacement misalignment between the sheets, thereby easily causing damage to the sheets, reducing the finished product quality of the sheets, and further resulting in a low qualified rate of sheet pressing. Summary of the Invention

[0005] The purpose of the present invention is to provide a sheet vacuum pressing device that can limit the upper and lower layers of sheets during the pressing process to avoid displacement misalignment between the sheets, so as to solve the problem that the above patent cannot limit the upper and lower layers of sheets when pressing the sheets, and when applying a downward pressure for pressing treatment, it may cause displacement misalignment between the sheets, thereby easily causing damage to the sheets, reducing the finished product quality of the sheets, and further resulting in a low qualified rate of sheet pressing as mentioned in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A sheet vacuum laminating device, comprising a box body, a box door capable of being rotated and opened is provided on the front side of the box body, a vacuum pump for pumping out the air inside is installed on the outer wall of the box body, an electric push rod is installed on the top of the box body, the telescopic rod of the electric push rod extends into the box body and is connected to a lifting frame with an open bottom, a rectangular installation groove is opened on the lower end surface of the lifting frame, a pressure-applying airbag is connected in the rectangular installation groove on the lifting frame, an air delivery pipe for inputting gas into the pressure-applying airbag is connected to the top of the lifting frame, the air delivery pipe penetrates the box body, a limiting mechanism is provided on the lifting frame, the limiting mechanism includes a cross-shaped guide rod connected in the lifting frame, clamping fixtures capable of approaching and separating from each other are provided on the front and back sides and the left and right sides of the cross-shaped guide rod, the cross-shaped guide rod and the clamping fixtures are both located inside the pressure-applying airbag, a compression spring A is connected between the clamping fixture and the cross-shaped guide rod, a pushing component for pushing the four clamping fixtures to approach each other to limit the upper and lower layer sheets is provided on the top of the lifting frame, a discharging mechanism is provided inside the box body, the discharging mechanism includes a push plate slidably arranged inside the box body through a guide rail, a mounting plate is connected to the lower part inside the box body, and a driving component for driving the push plate to move forward to push out the sheet is provided on the mounting plate.

[0007] Preferably, the clamping fixture includes a U-shaped sleeve rod slidably connected to the cross-shaped guide rod, the compression spring A is connected between the U-shaped sleeve rod and the cross-shaped guide rod, an inclined rod is connected to the upper end surface of the U-shaped sleeve rod, a movable block is sleeved on the U-shaped sleeve rod, a buffer spring is connected between the movable block and the U-shaped sleeve rod, a clamping rod capable of moving up and down is provided on the movable block, and a tension spring is connected between the upper part of the clamping rod and the top of the movable block.

[0008] Preferably, the pushing component includes a connecting plate connected to the outer wall of the rear side of the lifting frame, a guide rod is slidably connected to the connecting plate, the guide rod is fixedly connected inside the box body, a positioning block is connected to the lower part of the outer wall of the guide rod, a lower pressing plate capable of swinging up and down is provided on the top of the lifting frame, an L-shaped push rod capable of moving up and down is provided on the guide rod, the top end of the L-shaped push rod penetrates the connecting plate and contacts the lower pressing plate, the L-shaped push rod can contact the positioning block when moving down, a compression spring B is connected between the connecting plate and the L-shaped push rod, a frame rod capable of moving up and down is provided on the top of the lifting frame, the frame rod contacts the lower pressing plate and the inclined rod, and the frame rod moves down to push the four inclined rods to approach each other.

[0009] Preferably, the driving component includes a belt conveying component arranged on the mounting plate, a pull rod is connected to the belt of the belt conveying component, and the pull rod is connected to the push plate.

[0010] Preferably, a chute is opened at the lower part of the box body, a supporting mechanism is arranged in the chute, the supporting mechanism includes a supporting plate slidably connected in the chute, a compression spring C is connected between the supporting plate and the box body, a wire conduit is embedded and installed at the rear side of the inner bottom of the box body, a wire groove is opened at the lower part of the box body, a pull rope is connected to the rear side of the push plate, and the pull rope passes through the wire conduit and the wire groove and is connected to the supporting plate.

[0011] Preferably, the support mechanism further includes a pushing plate hinged to the front side of the support plate, and a torsion spring is connected between the pushing plate and the support plate for driving the pushing plate to rotate upward to a vertical state.

[0012] Preferably, a cleaning mechanism is provided on the pushing plate. The cleaning mechanism includes a scraping plate rotatably connected to the rear side of the pushing plate through a rotating shaft. A driving motor is installed on the pushing plate, and the output shaft of the driving motor is connected to the rotating shaft to drive the rotating shaft to drive the scraping plate to swing up and down. A fixed collection box is embedded and installed at the rear side of the bottom of the box body, and a movable collection box that can be pulled out is provided in the fixed collection box.

[0013] Preferably, the scraping plate is made of HDPE material.

[0014] Preferably, an observation window is embedded and installed on the front side of the box body.

[0015] Preferably, a sealing strip is connected to the box door.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Four jigs can correct the upper and lower layer plates so that the upper and lower layer plates are centered and aligned, and can effectively limit the upper and lower layer plates to prevent displacement and misalignment between the plates during the pressing process, thereby avoiding damage to the plates, improving the quality of the finished plate, increasing the qualified rate of plate pressing, and the jigs are elastically arranged, so that plates of different thicknesses and sizes can be limited, and thus it is applicable to plates of different thicknesses and sizes, with strong practicability.

[0018] 2. By inputting high-temperature and high-pressure gas into the pressure-applying airbag, the pressure-applying airbag can be inflated to apply pressure to the plate to complete the pressing of the plate. The way of inflating the pressure-applying airbag to press the plate can make the pressure more uniform, thereby improving the plate pressing effect. And through the high-temperature and high-pressure gas, sufficient pressure and heat can be provided to make the plates fit tightly together and make the glue completely cured, thereby further improving the plate pressing effect.

[0019] 3. The belt transport assembly can drive the pull rod to drive the pushing plate to move forward to push out the plate, so as to automatically complete the discharging of the plate.

[0020] 4. The support plate can support the plate to prevent the plate from being suspended, thereby avoiding the deformation of the center of gravity of the plate causing difficulties in loading and unloading, and avoiding the deformation of the plate. And through the cooperation of the torsion spring and the pushing plate, the plate to be pressed can be pushed into the box body to automatically complete the loading of the plate.

[0021] 5. Driving the shovel plate to move backward through the push plate can push the debris and residue at the bottom inside the box backward into the fixed collection frame, so as to clean the debris and residue remaining at the bottom inside the box, and avoid the debris and residue adhering to the bottom surface of the lower layer of the plate, resulting in surface damage or indentation of the plate during pressing. Brief Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 It is an installation schematic diagram of the limiting mechanism and the discharging mechanism of the present invention.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the pressure-applying airbag of the present invention.

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the fixture of the present invention.

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the limiting mechanism of the present invention.

[0028] Figure 6 It is a partial three-dimensional structural schematic diagram of the limiting mechanism of the present invention.

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the discharging mechanism of the present invention.

[0030] Figure 8 It is an installation schematic diagram of the supporting mechanism of the present invention.

[0031] Figure 9 It is an installation schematic diagram of the pushing plate and the torsion spring of the present invention.

[0032] Figure 10 It is an installation schematic diagram of the cleaning mechanism of the present invention.

[0033] Figure 11 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0034] Figure 12 It is an installation schematic diagram of the observation window and the sealing strip of the present invention.

[0035] Reference numerals in the figure: 1 - box body, 2 - box door, 3 - vacuum pump, 4 - electric push rod, 5 - lifting frame, 6 - pressure - applying air bag, 7 - air delivery pipe, 81 - cross - shaped guide rod, 82 - clamp, 821 - U - shaped sleeve rod, 822 - inclined rod, 823 - movable block, 824 - buffer spring, 825 - clamping rod, 826 - tension spring, 83 - compression spring A, 84 - guide rod, 85 - positioning block, 86 - connecting plate, 87 - L - shaped push rod, 88 - compression spring B, 89 - lower pressing plate, 810 - frame rod, 91 - guide rail, 92 - push plate, 93 - mounting plate, 94 - belt conveyor assembly, 95 - pull rod, 101 - support plate, 102 - compression spring C, 103 - wire conduit, 104 - pull rope, 105 - pushing plate, 106 - torsion spring, 111 - rotating shaft, 112 - driving motor, 113 - fixed collection box, 114 - shoveling plate, 115 - movable collection box, 12 - observation window, 13 - sealing strip. Detailed implementation manners

[0036] The following further describes the present application in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be understood as a limitation on the protection scope of the present application. Those skilled in the art can make some non - essential improvements and adjustments to the present application based on the above application content.

[0037] Please refer to Figures 1-6, a sheet vacuum pressing device, comprising a box body 1, a box door 2 that can be rotated and opened is hinged to the front side of the box body 1, a vacuum pump 3 for pumping out the air inside is installed on the outer wall of the rear side of the box body 1, an electric push rod 4 is installed on the top of the box body 1, the telescopic rod of the electric push rod 4 extends into the box body 1 and is connected to a lifting frame 5 with an open bottom, a rectangular installation groove is opened on the lower end surface of the lifting frame 5, a pressure applying airbag 6 is connected in the rectangular installation groove on the lifting frame 5, a gas transmission pipe 7 for inputting gas into the pressure applying airbag 6 is connected to the right side of the top of the lifting frame 5, the gas transmission pipe 7 penetrates through the box body 1, a limiting mechanism is arranged on the lifting frame 5, the limiting mechanism includes a cross-shaped guide rod 81 connected in the lifting frame 5, clamping fixtures 82 that can approach and separate from each other are arranged on the front and rear sides and the left and right sides of the cross-shaped guide rod 81, the cross-shaped guide rod 81 and the clamping fixtures 82 are both located in the pressure applying airbag 6, a compression spring A83 is connected between the clamping fixture 82 and the cross-shaped guide rod 81, a pushing component for pushing the four clamping fixtures 82 to approach each other to limit the upper and lower layer sheets is arranged on the top of the lifting frame 5, the clamping fixture 82 includes a U-shaped sleeve rod 821 slidably connected to the cross-shaped guide rod 81, the compression spring A83 is connected between the U-shaped sleeve rod 821 and the cross-shaped guide rod 81, an inclined rod 822 is connected to the upper end surface of the U-shaped sleeve rod 821, a movable block 823 is sleeved on the U-shaped sleeve rod 821, a buffer spring 824 is connected between the movable block 823 and the U-shaped sleeve rod 821, a clamping rod 825 that can move up and down is slidably connected to the movable block 823, a tension spring 826 is connected between the upper part of the clamping rod 825 and the top of the movable block 823, the pushing component includes two connecting plates 86 symmetrically connected to the outer wall of the rear side of the lifting frame 5, a guide rod 84 is slidably connected to the connecting plate 86, the guide rod 84 is fixedly connected in the box body 1, a positioning block 85 is connected to the lower part of the outer wall of the guide rod 84, two lower pressing plates 89 that can swing up and down are symmetrically hinged to the left and right sides of the top of the lifting frame 5, an L-shaped push rod 87 that can move up and down is slidably connected to the guide rod 84, the top end of the L-shaped push rod 87 penetrates through the connecting plate 86 and contacts the lower pressing plate 89, the L-shaped push rod 87 can contact the positioning block 85 when moving down, a compression spring B88 is connected between the connecting plate 86 and the L-shaped push rod 87, a frame rod 810 that can move up and down is slidably connected to the top of the lifting frame 5, the frame rod 810 is composed of two 7-shaped rods and one rectangular rod, the two 7-shaped rods are symmetrically slidably connected to the top of the lifting frame 5 on the left and right, the rectangular rod is connected to the bottom end of the 7-shaped rod, the 7-shaped rod on the frame rod 810 contacts the lower pressing plate 89, and the rectangular rod on the frame rod 810 contacts the inclined rod 822.

[0038] First, connect the gas pipeline 7 to the external gas supply equipment. Then, place two glued wooden boards into the box body 1. Subsequently, control the vacuum pump 3 to extract the gas in the box body 1 to keep the box body 1 in a vacuum state. Then, control the electric push rod 4 to push the lifting frame 5 downward with the pressure application airbag 6 and the fixture 82, so that the bottom of the pressure application airbag 6 fits on the upper wooden board, and the bottom of the clamping rod 825 on the fixture 82 fits on the bottom inside the box body 1. When the bottom of the clamping rod 825 contacts the bottom inside the box body 1, the clamping rod 825 cannot move downward any further, so the movable block 823 continues to move downward, stretching the tension spring 826. In this way, it can be applied to press plates with different thicknesses. The lifting frame 5 moves downward and drives the connecting plate 86, the lower pressing plate 89, and the frame rod 810 to move downward. The downward movement of the connecting plate 86 pushes the L-shaped push rod 87 downward by compressing the spring B88. When the L-shaped push rod 87 moves downward to contact the positioning block 85, the L-shaped push rod 87 cannot move downward any further. Thus, the connecting plate 86 continues to move downward, compressing the spring B88. Since the L-shaped push rod 87 cannot move downward while the lower pressing plate 89 continues to move downward, the rear part of the lower pressing plate 89 is pushed by the L-shaped push rod 87 to swing upward, and the front part of the lower pressing plate 89 swings downward to push the frame rod 810 to move downward on the lifting frame 5. The return rod on the frame rod 810 moves downward to push the four inclined rods 822 closer to each other, so that the four U-shaped sleeve rods 821 can drive the four movable blocks 823 closer to each other, so that the four clamping rods 825 can move closer to each other to correct the upper and lower layer plates, so that the upper and lower layer plates are centered and aligned. When the upper and lower layer plates are centered and aligned, the four clamping rods 825 are all in close contact with the plates and cannot move closer to each other any further. Consequently, the four movable blocks 823 cannot move closer to each other any further, so the four U-shaped sleeve rods 821 continue to move closer to each other to compress the buffer spring 824. In this way, it can limit plates of different sizes. Thus, the upper and lower layer plates can be effectively limited by the four clamping rods 825 to prevent displacement and misalignment between the plates during the pressing process, thereby avoiding damage to the plates, improving the quality of the finished plates, and increasing the qualified rate of plate pressing. When the upper and lower layer plates are limited by the clamping rods 825, the gas supply equipment is controlled to input high-temperature and high-pressure gas into the pressure application airbag 6 through the gas pipeline 7, so that the pressure application airbag 6 expands to apply pressure to the plates to complete the pressing of the plates. Moreover, the expansion of the pressure application airbag 6 to press the plates can make the pressure more uniform, thereby improving the plate pressing effect. And through the high-temperature and high-pressure gas, sufficient pressure and heat can be provided to make the plates fit tightly together and make the glue completely cured, thereby further improving the plate pressing effect.After the plate pressing is completed, control the gas transmission device to extract the high-temperature and high-pressure gas in the pressure-applying airbag 6, so that the pressure-applying airbag 6 shrinks, and control the electric push rod 4 to pull the lifting frame 5 upward to reset. The upward movement of the lifting frame 5 drives the cruciform guide rod 81, the fixture 82, the connecting plate 86, the lower pressing plate 89 and the frame rod 810 to move upward. Since the compression spring B88 is compressed, the L-shaped push rod 87 will not immediately move upward together with the connecting plate 86 and the lower pressing plate 89. As a result, the lower pressing plate 89 moves upward and disengages from the L-shaped push rod 87. Under the reset action of the compression spring A83, the four fixtures 82 move away from each other, and the inclined rods 822 on the fixtures 82 move away from each other and push the return rod on the frame rod 810 upward, so that the entire frame rod 810 moves upward on the lifting frame 5. The upward movement of the frame rod 810 on the lifting frame 5 pushes the lower pressing plate 89 to swing upward to a horizontal state, so that the lower pressing plate 89 contacts the L-shaped push rod 87 again. When the compression spring B88 returns to its original state, the connecting plate 86 continues to move upward and pulls the L-shaped push rod 87 to move upward and reset through the compression spring B88.

[0039] Since this device uses high-temperature and high-pressure gas to pressurize and heat the plates, making the plates fit tightly together and the glue completely cured, the temperature inside the box body 1 is relatively high. Therefore, when workers reach their hands into the box body 1 to take materials, they are easily scalded. Please refer to Figure 2 and Figure 7 , in some preferred embodiments, in order to avoid the problem of workers' hands being scalded, it further includes a discharging mechanism. A discharging mechanism is provided inside the box body 1. The discharging mechanism includes two guide rails 91 symmetrically connected to the bottom inside the box body 1 from left to right. A push plate 92 is slidably connected between the two guide rails 91. The left side of the lower part inside the box body 1 is connected with a mounting plate 93. A driving component for driving the push plate 92 to move forward to push out the plates is provided on the mounting plate 93. The driving component includes a belt conveying component 94 provided on the mounting plate 93. The belt conveying component 94 is composed of a servo motor, belt pulleys and a belt. Two belt pulleys are rotatably connected to the mounting plate 93 symmetrically from front to back. A belt is sleeved between the two belt pulleys. A servo motor is installed on the left rear side of the mounting plate 93. The output shaft of the servo motor is connected to the rear belt pulley. A pull rod 95 is connected to the belt of the belt conveying component 94. The pull rod 95 is connected to the push plate 92.

[0040] Controlling the rotation of the belt conveying component 94 can make the pull rod 95 drive the push plate 92 to move forward to push out the pressed plates. Controlling the belt conveying component 94 to rotate in the reverse direction can make the pull rod 95 drive the push plate 92 to move backward to reset. In this way, the discharging of the plates can be automatically completed, so that workers do not need to reach their hands into the box body 1 to take materials, and thus the hands can be avoided from being scalded.

[0041] When loading and unloading the plates, the plates are not supported and are suspended. The suspension of the plates easily causes the deformation of the center of gravity of the plates, resulting in difficulties in loading and unloading and the deformation of the plates. Please refer toFigures 8-9 , in some preferred embodiments, in order to avoid difficulties in loading and unloading caused by the deformation of the center of gravity of the plate and the deformation of the plate, a support mechanism is further included. Two chutes are symmetrically opened on the left and right sides of the lower part of the box body 1. A support mechanism is arranged in the chutes. The support mechanism includes a support plate 101 slidably connected in the chutes. A compression spring C102 is connected between the support plate 101 and the box body 1. Two wire conduits 103 are symmetrically and embeddedly installed on the left and right sides of the rear side of the inner bottom of the box body 1. Two wire grooves are symmetrically opened on the left and right sides of the lower part of the box body 1. Two pull ropes 104 are symmetrically connected to the rear side of the push plate 92. The two pull ropes 104 respectively pass through the two wire conduits 103 and the two wire grooves. The two pull ropes 104 are respectively connected to the two support plates 101. A push plate 105 is hinged to the front side of the support plate 101. Two torsion springs 106 are symmetrically connected between the push plate 105 and the support plate 101.

[0042] When the push plate 105 is located in the chute, the push plate 105 is limited by the box body 1 to be in a horizontal state, and the torsion spring 106 is in a compressed state accordingly. When the push plate 92 moves forward to push out the pressed plate, the support plate 101 is pulled by the pull rope 104 to move forward out of the box body 1 with the push plate 105, and the compression spring C102 is compressed accordingly. The support plate 101 moving out of the box body 1 can support the pressed plate. After the push plate 105 moves out of the box body 1, the torsion spring 106 can drive the push plate 105 to rotate upward to a vertical state under the reset action. After the pressed plate is pushed out, the pressed plate is taken off from the support plate 101, and the plate to be pressed is placed again. When the push plate 92 moves backward to reset, the pull rope 104 is relaxed. Under the reset action of the compression spring C102, the support plate 101 drives the push plate 105 to move backward into the box body 1. The push plate 105 in the vertical state moves backward to push the plate to be pressed to move backward into the box body 1 to automatically complete the loading of the plate. In this way, the support plate 101 can support the plate to avoid the plate being suspended, so as to avoid difficulties in loading and unloading caused by the deformation of the center of gravity of the plate and avoid the deformation of the plate. When the push plate 105 moves backward until it contacts the box body 1, the push plate 105 is driven by the box body 1 to rotate downward to a horizontal state, and the torsion spring 106 is compressed accordingly.

[0043] During the pressing operation, some debris and residues are likely to remain on the inner bottom of the box body 1, so that the debris and residues adhere to the bottom surface of the lower plate. Due to the adhesion of the debris and residues, it is easy to cause surface damage or indentation of the plate during pressing. Please refer to Figures 10-11, in some preferred embodiments, to avoid the problem of debris residue adhering to the bottom surface of the lower layer of the plate, causing damage or indentation on the surface of the plate, a cleaning mechanism is further included. The cleaning mechanism is provided on the push plate 92. The cleaning mechanism includes a scraping plate 114 rotatably connected to the rear side of the push plate 92 through a rotating shaft 111. The scraping plate 114 is made of HDPE material. A driving motor 112 is installed on the right side of the push plate 92. The output shaft of the driving motor 112 is connected to the right end of the rotating shaft 111. A fixed collection frame 113 is embedded and installed at the rear side of the bottom of the box body 1. A movable collection frame 115 that can be pulled outwards is slidably connected in the fixed collection frame 113.

[0044] When the push plate 92 is to be moved forward to push out the pressed plate, first control the driving motor 112 to drive the rotating shaft 111 to drive the scraping plate 114 to swing upwards, so that the bottom of the scraping plate 114 is separated from the inner bottom of the box body 1, thereby avoiding the debris residue on the inner bottom of the box body 1 being pushed forward when the push plate 92 drives the scraping plate 114 to move forward. When the push plate 92 is to be moved backward to reset, first control the driving motor 112 to drive the rotating shaft 111 to drive the scraping plate 114 to swing downwards, so that the bottom of the scraping plate 114 is in close contact with the inner bottom of the box body 1, so that when the push plate 92 drives the scraping plate 114 to move backward, the debris residue on the inner bottom of the box body 1 is pushed backward into the fixed collection frame 113. In this way, the debris residue remaining on the inner bottom of the box body 1 can be cleaned to avoid the debris residue adhering to the bottom surface of the lower layer of the plate, resulting in damage or indentation on the surface of the plate during pressing. And because the scraping plate 114 is made of HDPE material, the scraping plate 114 has high pressure resistance, anti-aging property and longer service life.

[0045] Please refer to Figure 12 , an observation window 12 is embedded and installed on the front side of the box body 1, and a sealing strip 13 is connected to the box door 2.

[0046] Through the observation window 12, it is convenient to view the pressing situation of the plate inside the box body 1. Through the sealing strip 13, the sealing performance between the box door 2 and the box body 1 can be improved.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet vacuum laminating device, comprising a box body (1). A box door (2) that can be rotated and opened is provided on the front side of the box body (1). A vacuum pump (3) for pumping out the air inside it is installed on the outer wall of the box body (1). An electric push rod (4) is installed on the top of the box body (1). The telescopic rod of the electric push rod (4) extends into the box body (1) and is connected to a lifting frame (5) with an open bottom setting. It is characterized in that a rectangular installation groove is formed on the lower end surface of the lifting frame (5). A pressure - applying air bag (6) is connected in the rectangular installation groove on the lifting frame (5). An air delivery pipe (7) for inputting gas into the pressure - applying air bag (6) is connected to the top of the lifting frame (5). The air delivery pipe (7) penetrates the box body (1). A limiting mechanism is provided on the lifting frame (5). The limiting mechanism includes a cross - shaped guide rod (81) connected inside the lifting frame (5). Clamps (82) that can approach and separate from each other are provided on the front and rear sides and the left and right sides of the cross - shaped guide rod (81). Both the cross - shaped guide rod (81) and the clamps (82) are located inside the pressure - applying air bag (6). A compression spring A (83) is connected between the cross - shaped guide rod (81) and the clamps (82). A pushing component for pushing the four clamps (82) to approach each other to limit the upper and lower layers of sheets is provided on the top of the lifting frame (5). A discharging mechanism is provided inside the box body (1). The discharging mechanism includes a push plate (92) slidably arranged inside the box body (1) through a guide rail (91). An installation plate (93) is connected to the lower part inside the box body (1). A driving component for driving the push plate (92) to move forward to push out the sheet is provided on the installation plate (93); The clamp (82) includes a U - shaped sleeve rod (821) slidably connected to the cross - shaped guide rod (81). The compression spring A (83) is connected between the U - shaped sleeve rod (821) and the cross - shaped guide rod (81). An inclined rod (822) is connected to the upper end surface of the U - shaped sleeve rod (821). A movable block (823) is sleeved on the U - shaped sleeve rod (821). A buffer spring (824) is connected between the movable block (823) and the U - shaped sleeve rod (821). A clamping rod (825) that can move up and down is provided on the movable block (823). A tension spring (826) is connected between the upper part of the clamping rod (825) and the top of the movable block (823); The pushing component includes a connecting plate (86) connected to the outer wall at the rear side of the lifting frame (5). A guiding rod (84) is slidably connected to the connecting plate (86). The guiding rod (84) is fixedly connected inside the box body (1). A positioning block (85) is connected to the lower part of the outer wall of the guiding rod (84). A lower pressing plate (89) capable of swinging up and down is provided at the top of the lifting frame (5). An L-shaped push rod (87) capable of moving up and down is provided on the guiding rod (84). The top end of the L-shaped push rod (87) penetrates through the connecting plate (86) and contacts the lower pressing plate (89). When the L-shaped push rod (87) moves downwards, it can contact the positioning block (85). A compression spring B (88) is connected between the connecting plate (86) and the L-shaped push rod (87). A frame rod (810) capable of moving up and down is provided at the top of the lifting frame (5). The frame rod (810) contacts the lower pressing plate (89) and the inclined rods (822). When the frame rod (810) moves downwards, it pushes the four inclined rods (822) to approach each other.

2. The sheet material vacuum pressing device according to claim 1, characterized in that the driving component includes a belt conveying component (94) arranged on the mounting plate (93). A pull rod (95) is connected to the belt of the belt conveying component (94). The pull rod (95) is connected to the push plate (92).

3. The sheet material vacuum pressing device according to claim 2, characterized in that a sliding groove is formed in the lower part of the box body (1). A supporting mechanism is arranged in the sliding groove. The supporting mechanism includes a supporting plate (101) slidably connected in the sliding groove. A compression spring C (102) is connected between the supporting plate (101) and the box body (1). A wire conduit (103) is embedded and installed at the rear side of the inner bottom of the box body (1). A wire groove is formed in the lower part of the box body (1). A pull rope (104) is connected to the rear side of the push plate (92). The pull rope (104) passes through the wire conduit (103) and the wire groove and is connected to the supporting plate (101).

4. The sheet material vacuum pressing device according to claim 3, characterized in that the supporting mechanism further includes a pushing plate (105) hingedly connected to the front side of the supporting plate (101). A torsion spring (106) for driving the pushing plate (105) to rotate upwards to a vertical state is connected between the pushing plate (105) and the supporting plate (101).

5. The sheet material vacuum pressing device according to claim 4, characterized in that a cleaning mechanism is arranged on the push plate (92). The cleaning mechanism includes a scraping plate (114) rotatably connected to the rear side of the push plate (92) through a rotating shaft (111). A driving motor (112) is installed on the push plate (92). The output shaft of the driving motor (112) is connected to the rotating shaft (111) to drive the rotating shaft (111) to drive the scraping plate (114) to swing up and down. A fixed collection frame (113) is embedded and installed at the rear side of the bottom of the box body (1). A movable collection frame (115) capable of being pulled outwards is arranged in the fixed collection frame (113).

6. The sheet material vacuum pressing device according to claim 5, characterized in that the scraping plate (114) is made of HDPE material.

7. The sheet material vacuum pressing device according to claim 6, characterized in that An observation window (12) is embedded and installed on the front side of the box body (1).

8. A sheet material vacuum pressing device according to claim 7, characterized in that a sealing strip (13) is connected to the box door (2).

Images