Bamboo-wood composite material hot pressing device and method

Abstract

The bamboo-wood composite material hot pressing device comprises an equipment shell, an inner cavity of the equipment shell is fixedly connected with a plurality of hydraulic cylinders in a rectangular array mode, the output ends of the hydraulic cylinders are fixedly connected with an upper heat insulation plate, the bottom of the upper heat insulation plate is sequentially provided with an upper hot pressing plate and an upper mold, and the inner cavity of the equipment shell is fixedly connected with a supporting frame; the top of the supporting frame is slidably connected with a lower heat insulation plate. According to the bamboo-wood composite material hot-pressing device and method, through the linkage design of the moving assembly, the ejection mechanism and the material pushing assembly, after hot-pressing cooling is completed, the moving assembly drives the lower die to automatically move out of the equipment shell, the ejection mechanism synchronously ejects a finished product out of the lower die, and the finished product is automatically pushed out of the equipment shell; the material pushing assembly pushes finished products to the material guiding plate to complete discharging, the working efficiency is higher, the human input is reduced, the labor intensity of operators is reduced, and the continuity of the production process is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of hot pressing technology for bamboo and wood composite materials, specifically to a hot pressing device and method for bamboo and wood composite materials. Background Technology

[0002] Bamboo-wood composite materials, as an environmentally friendly material that combines the texture of wood with the mechanical strength of bamboo, have been widely used in furniture manufacturing, building decoration, packaging materials, and many other fields. Hot pressing is the core process in the production of bamboo-wood composite materials. By applying specific temperatures, pressures, and holding times, the glued bamboo and wood preforms are tightly bonded together.

[0003] Most existing hot pressing devices for bamboo and wood composite materials adopt a fixed frame structure, mainly composed of a hot pressing plate, upper and lower molds, a hydraulic cylinder drive mechanism, and a frame. Although these can meet the basic hot pressing requirements, the material handling process is problematic. In traditional devices, the lower mold is usually fixed inside the frame. After hot pressing and cooling, operators need to use tools to reach into the equipment cavity to retrieve the material. This results in limited operating space, high labor intensity, and low efficiency in manual material handling, thus reducing production efficiency. Therefore, we propose a hot pressing device and method for bamboo and wood composite materials. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a hot pressing device and method for bamboo and wood composite materials. It solves the problem that in the material handling stage, the lower mold of traditional devices is usually fixed inside the machine frame. After hot pressing and cooling, operators need to use tools to enter the inner cavity of the equipment to retrieve the material. This results in a small operating space, high labor intensity, and low efficiency in manual material handling, thus reducing production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A hot pressing device for bamboo and wood composite materials includes a housing. Multiple hydraulic cylinders are fixedly connected in a rectangular array inside the housing. An upper heat insulation plate is fixedly connected to the output end of each hydraulic cylinder. An upper hot pressing plate and an upper mold are sequentially installed at the bottom of the upper heat insulation plate. A support frame is fixedly connected to the inner cavity of the housing. A lower heat insulation plate is slidably connected to the top of the support frame. A moving component for moving the lower heat insulation plate is provided inside the support frame. The lower heat insulation plate is sequentially installed with a lower hot press plate and a lower mold on its top. The lower mold is equipped with an ejection mechanism inside. The support frame is symmetrically fixedly connected with fixed frames on its outer side. Two fixed frames are fixedly connected to the outer side of one of the fixed frames. A pusher assembly is provided on one side of the fixed frame.

[0006] In a preferred embodiment, the moving component includes symmetrically formed grooves on the top of the support frame. A first electric push rod is installed in the inner cavity of the groove. A slider is fixedly connected to the output end of the first electric push rod. The slider is slidably connected to the groove. The top end of the slider is fixedly connected to the lower heat insulation plate.

[0007] The technical effect of adopting the above-mentioned further solution is that the first electric push rod drives the slider to slide along the slide groove, and the slider drives the lower hot platen and the lower mold to move through the lower heat insulation plate.

[0008] In a preferred embodiment, the top of the support frame is symmetrically provided with guide grooves, and the inner wall of the guide groove is slidably connected with a guide block, the top of the guide block being fixedly connected to the lower heat insulation plate.

[0009] The technical effect of adopting the above-mentioned further solution is that the movement of the lower heat insulation plate can be limited by the setting of guide blocks and guide grooves to prevent displacement.

[0010] In a preferred embodiment, the ejection mechanism includes symmetrically formed lifting grooves inside the lower mold. A lifting frame is slidably connected inside the lifting grooves. Multiple ejection rods are fixedly connected to the top of the lifting frame in a rectangular array. Protrusions are symmetrically fixedly connected to both sides of the lifting frame. A connecting frame is fixedly connected to the top of the fixed frame. A connecting groove is formed inside the connecting frame to cooperate with the protrusions. The protrusions slide in contact with the connecting grooves.

[0011] The technical effect of adopting the above-mentioned further solution is as follows: during the process of the lower mold moving out of the equipment housing, the protrusion first moves along the transverse groove of the connecting groove. When it reaches the connection between the transverse groove and the oblique groove, the continued movement of the lower mold will drive the protrusion to move along the oblique groove of the connecting groove. Thus, when the lower mold moves, it drives the two sets of protrusions to move upward. The protrusion drives the ejector rod to move upward through the lifting frame, thereby gradually ejecting the hot-pressed blank to the top of the lower mold.

[0012] In a preferred embodiment, the feeding assembly includes a rotating shaft rotatably connected between two fixed blocks via bearings. Two support platforms are fixedly connected to the outer side of the rotating shaft. A second electric push rod is mounted on the top of the support platforms. A feeding plate is fixedly connected to the output end of the second electric push rod. A guide plate is fixedly connected to the top of the fixed frame away from the fixed blocks.

[0013] The technical effect of adopting the above-mentioned further solution is that the support platform is rotated by the rotating shaft, which makes it convenient to store the support platform when not in use and prevent it from protruding and being bumped. The pusher plate is moved by the second electric push rod, and the product can be pushed out through the guide plate for unloading.

[0014] In one preferred embodiment, one of the fixed blocks has an adjustment assembly on its outer side for driving the rotating shaft to rotate. The adjustment assembly includes a support frame fixedly connected to the outer side of the fixed block, an adjustment block slidably connected to the inner wall of the support frame, a rack fixedly connected to the top of the adjustment block, and one end of the rotating shaft passing through the fixed block and fixedly connected to a gear that cooperates with the rack.

[0015] The technical effect of adopting the above-mentioned further solution is that the rack is moved by the adjusting block, the rack is moved by the movement of the rack, the gear is rotated by the gear, and the support table is rotated by the rotating shaft.

[0016] In a preferred embodiment, the outer side of the support frame is provided with a triggering component for moving the adjusting block. The triggering component includes a slide rod fixedly connected to the outer side of the adjusting block. The slide rod is slidably connected to the support frame. One end of the slide rod passes through the support frame and is fixedly connected to a sliding seat. The outer side of the lower mold is fixedly connected to a support block. The bottom of the support block is fixedly connected to a pressure rod. The outer side of the sliding seat is provided with an inclined surface that cooperates with the pressure rod.

[0017] The technical effect of adopting the above-mentioned further solution is that during the movement of the lower mold, the lower mold drives the pressure rod to move through the support block, so that the pressure rod contacts the inclined surface of the sliding seat. When it continues to move, the pressure rod will squeeze the inclined surface, thereby driving the sliding seat to slide. The sliding seat drives the adjusting block to slide along the inner wall of the support frame through the sliding rod.

[0018] In a preferred embodiment, the support frame is provided with a reset assembly for driving the adjustment block to reset. The reset assembly includes two limiting rods fixedly connected to the inner cavity of the support frame. The adjustment block is slidably sleeved on the limiting rods. A spring is sleeved on the outer side of the limiting rod and on one side of the adjustment block.

[0019] The technical effect of adopting the above-mentioned further solution is that the movement of the adjusting block can be limited by setting two sets of limit rods to prevent deviation, and the adjusting block can be moved and reset by setting springs.

[0020] This invention also discloses a hot-pressing method for bamboo-wood composite materials, comprising the following steps: Step 1: Grind rice straw into needle-like or strip-like shapes, crush bamboo into bamboo shreds, and break wood into wood chips. Mix the three materials separately, apply glue, control the moisture content, and screen to remove impurities. Lay the core layer in layers, both longitudinally and transversely. Cover with preheated and glued wood veneer, and vent and pre-press the blank. Place the blank into the lower mold, start the upper and lower hot press plates, and use a hydraulic cylinder to move the upper heat insulation plate downwards, thereby moving the upper hot press plate and the upper mold, so that the upper and lower molds fit together. Perform hot pressing operation with the upper and lower hot press plates. Step 2: After hot pressing and cooling, start the first electric push rod. The first electric push rod drives the slider to slide along the slide groove. The slider drives the lower hot press plate and the lower mold to move to one end of the support frame through the lower heat insulation plate. During the movement, the protrusion first moves along the transverse groove of the connecting groove. When it reaches the connection between the transverse groove and the inclined groove, the lower mold continues to move and will drive the protrusion to move along the inclined groove of the connecting groove. Thus, when the lower mold moves, it drives the two sets of protrusions to move upward. The protrusion drives the ejector rod to move upward through the lifting frame, thereby gradually ejecting the hot-pressed blank to the top of the lower mold. Step 3: During the movement of the lower mold, the lower mold moves the pressure rod through the support block, causing the pressure rod to contact the inclined surface of the sliding seat. As it continues to move, the pressure rod will press against the inclined surface, causing the sliding seat to slide. The sliding seat moves the adjusting block along the inner wall of the support frame through the sliding rod. The spring is compressed, and the adjusting block moves the rack. The movement of the rack drives the gear to rotate. The gear drives the support table to rotate through the rotating shaft, thereby rotating the support table to a horizontal position. When the support table is rotated to a horizontal position, the pressure rod is located on the side of the sliding seat close to the inclined surface. The second electric push rod is activated, and the second electric push rod moves the push plate. The push plate can push the finished product out through the guide plate for unloading. Step 4: When not in use, activate the first electric push rod. The first electric push rod drives the slider to move and reset. The slider drives the lower heat insulation plate to move into the equipment housing. During the process of the lower mold moving into the equipment housing, the protrusion will first move along the inclined groove of the connecting groove, thereby driving the lifting frame to move downward. The lifting frame drives the ejector rod to move downward. When the protrusion moves to the connection between the inclined groove and the transverse groove, the ejector rod is completely retracted into the inner wall of the lower mold. When moving further, the protrusion will move along the transverse groove of the connecting groove. At the same time, the lower mold drives the pressure rod to move and reset through the support block, so that the pressure rod no longer squeezes the sliding seat. The spring will drive the adjusting block to gradually move and reset due to the elastic force. The adjusting block drives the rack to move, thereby driving the gear to rotate. The gear drives the support table to rotate to a vertical position for storage through the rotating shaft.

[0021] This invention provides a hot-pressing device and method for bamboo and wood composite materials. Compared with the prior art, it has the following advantages: 1. The hot pressing device and method for bamboo and wood composite materials, through the linkage design of the moving component, the ejection mechanism and the pushing component, after the hot pressing and cooling are completed, the moving component drives the lower mold to automatically move out of the equipment housing, the ejection mechanism simultaneously ejects the finished product from the lower mold, and the pushing component pushes the finished product to the guide plate to complete the unloading. This results in higher work efficiency, reduced manpower input, reduced labor intensity of operators, and significantly improved continuity of the production process.

[0022] 2. The hot pressing device and method for bamboo and wood composite materials, by adjusting the settings of the components, triggering components and resetting components, rotates the pushing component to the working position when the lower mold moves out of the equipment housing, and rotates it to a vertical position for storage when the lower mold moves into the equipment housing, to prevent collisions and avoid the pushing component occupying the outer space of the equipment for a long time, making the overall layout of the equipment more compact. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure when the heat insulation plate of the present invention is removed; Figure 3 This is a schematic diagram of the support frame of the present invention; Figure 4 This is an exploded view of the support frame of the present invention; Figure 5 This is an exploded view of the lower mold of the present invention; Figure 6 This is a schematic diagram of the structure of the fixing frame of the present invention; Figure 7 This is a schematic diagram of the support frame of the present invention.

[0024] Legend: 1. Equipment housing; 11. Upper mold; 12. Upper heat insulation plate; 13. Hydraulic cylinder; 14. Upper hot press plate; 2. Support frame; 21. Lower heat insulation plate; 22. Lower hot press plate; 23. Slide groove; 24. Guide groove; 25. Sliding block; 26. First electric push rod; 27. Guide block; 3. Fixing frame; 31. Fixing block; 32. Support platform; 33. Connecting frame; 34. Guide plate; 35. Second electric push rod; 36. Push plate; 37. Rotating shaft; 38. Connecting groove; 4. Lower mold; 41. Protrusion; 42. Lifting frame; 43. Support block; 44. Ejector rod; 45. Lifting groove; 46. Pressure rod; 5. Support frame; 51. Limiting rod; 52. Spring; 53. Adjusting block; 54. Slide rod; 55. Inclined surface; 56. Sliding seat; 57. Rack; 58. Gear. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1 to 7The present invention provides a technical solution: A hot pressing device for bamboo and wood composite materials includes a housing 1. Multiple hydraulic cylinders 13 are fixedly connected in a rectangular array within the inner cavity of the housing 1. An upper heat insulation plate 12 is fixedly connected to the output end of each hydraulic cylinder 13. An upper hot pressing plate 14 and an upper mold 11 are sequentially installed at the bottom of the upper heat insulation plate 12. A support frame 2 is fixedly connected to the inner cavity of the housing 1, extending to the outside of the housing 1. A lower heat insulation plate 21 is slidably connected to the top of the support frame 2. A moving component is provided inside the support frame 2 to move the lower heat insulation plate 21. When the blank is placed into the lower mold 4, the upper hot pressing plate 14 and the lower hot pressing plate 22 are activated. The hydraulic cylinders 13 drive the upper heat insulation plate 12 downwards, thereby moving the upper hot pressing plate 14 and the upper mold 11, causing the upper mold 11 to fit against the lower mold 4. This allows for hot pressing operations using the upper hot pressing plate 14 and the lower hot pressing plate 22. The moving component allows the lower heat insulation plate 21 to be moved, facilitating the removal of the hot-pressed finished product. The lower heat insulation plate 21 is sequentially equipped with a lower hot pressure plate 22 and a lower mold 4. The lower mold 4 is equipped with an ejection mechanism inside. The support frame 2 is symmetrically fixedly connected with a fixing frame 3 on the outside. One of the fixing frames 3 is fixedly connected with two fixing frames 3 on the outside. A pusher assembly is provided on one side of the fixing frame 3.

[0027] In this solution, the ejection mechanism can automatically eject the finished product inside the lower mold 4 after hot pressing, and the pusher assembly can automatically push the finished product out for unloading.

[0028] like Figure 3 and Figure 4 As shown: In this solution, the moving component includes symmetrically opened slide grooves 23 on the top of the support frame 2. A first electric push rod 26 is installed in the inner cavity of the slide groove 23. A slider 25 is fixedly connected to the output end of the first electric push rod 26. The slider 25 is slidably connected to the slide groove 23. The top end of the slider 25 is fixedly connected to the lower heat insulation plate 21. A guide groove 24 is symmetrically opened on the top of the support frame 2. A guide block 27 is slidably connected to the inner wall of the guide groove 24. The top end of the guide block 27 is fixedly connected to the lower heat insulation plate 21.

[0029] In this scheme, after hot pressing and cooling, the first electric push rod 26 is activated, which drives the slider 25 to slide along the slide groove 23. The slider 25 drives the lower hot pressing plate 22 and the lower mold 4 to move to one end of the support frame 2 through the lower heat insulation plate 21, so as to facilitate the removal of the hot-pressed finished product.

[0030] like Figures 4 to 6As shown: In this scheme, the ejection mechanism includes lifting grooves 45 symmetrically opened inside the lower mold 4. A lifting frame 42 is slidably connected inside the lifting grooves 45. Multiple ejection rods 44 are fixedly connected to the top of the lifting frame 42 in a rectangular array. Protrusions 41 are symmetrically fixedly connected to both sides of the lifting frame 42. A connecting frame 33 is fixedly connected to the top of the fixed frame 3. A connecting groove 38 is opened inside the connecting frame 33 to cooperate with the protrusions 41. The connecting groove 38 is composed of a transverse groove and an oblique groove. The protrusions 41 slide in contact with the connecting groove 38. The pushing assembly includes a rotating shaft 37 rotatably connected between two fixed blocks 31 through a bearing. Two support platforms 32 are fixedly connected to the outside of the rotating shaft 37. The support platforms 32 are hollow structures for weight reduction. A second electric push rod 35 is installed on the top of the support platform 32. A push plate 36 is fixedly connected to the output end of the second electric push rod 35. A guide plate 34 is fixedly connected to the top of the fixed frame 3 away from the fixed block 31.

[0031] In this scheme, during the process of the lower mold 4 moving outward from the equipment housing 1, the protrusion 41 first moves along the transverse groove of the connecting groove 38. When it reaches the connection between the transverse groove and the inclined groove, the continued movement of the lower mold 4 will drive the protrusion 41 to move along the inclined groove of the connecting groove 38. Thus, when the lower mold 4 moves, it drives the two sets of protrusions 41 to move upward. The protrusion 41 drives the ejector rod 44 to move upward through the lifting frame 42, thereby gradually ejecting the hot-pressed blank to the top of the lower mold 4. The second electric push rod 35 is activated, and the second electric push rod 35 drives the pusher plate 36 to move. Through the pusher plate 36, the product can be pushed out and unloaded through the guide plate 34. During the process of the lower mold 4 moving into the equipment housing 1, the protrusion 41 will first move along the inclined groove of the connecting groove 38, thereby driving the lifting frame 42 to move downward. The lifting frame 42 drives the ejector rod 44 to move downward. When the protrusion 41 moves to the connection between the inclined groove and the transverse groove, the ejector rod 44 is completely retracted into the inner wall of the lower mold 4. When it continues to move, the protrusion 41 will move along the transverse groove of the connecting groove 38.

[0032] like Figures 4 to 7As shown: In this solution, one of the fixed blocks 31 has an adjustment assembly on its outer side for driving the rotating shaft 37 to rotate. The adjustment assembly includes a support frame 5 fixedly connected to the outer side of the fixed block 31. An adjustment block 53 is slidably connected to the inner wall of the support frame 5. A rack 57 is fixedly connected to the top of the adjustment block 53. One end of the rotating shaft 37 passes through the fixed block 31 and is fixedly connected to a gear 58 that cooperates with the rack 57. Both the rack 57 and the gear 58 are made of low-carbon alloy, which has good wear resistance and a longer service life. The outer side of the support frame 5 has a trigger assembly for driving the adjustment block 53 to move. The trigger assembly includes a slide rod 54 fixedly connected to the outer side of the adjustment block 53. The slide rod 54 is slidably connected to the support frame 5. One end passes through the support frame 5 and is fixedly connected to a sliding seat 56. A support block 43 is fixedly connected to the outer side of the lower mold 4. A pressure rod 46 is fixedly connected to the bottom of the support block 43. An inclined surface 55 that cooperates with the pressure rod 46 is opened on the outer side of the sliding seat 56. The support frame 5 is provided with a reset assembly for driving the adjusting block 53 to reset. The reset assembly includes two limiting rods 51 fixedly connected to the inner cavity of the support frame 5. The adjusting block 53 is slidably sleeved on the limiting rods 51. A spring 52 is sleeved on the outer side of the limiting rods 51 and on one side of the adjusting block 53. The spring 52 abuts against the adjusting block 53 and is used to drive the adjusting block 53 to reset. The spring 52 is made of carbon spring steel, which has a high elastic limit and yield strength and good durability.

[0033] In this scheme, during the process of the lower mold 4 moving outward from the equipment housing 1, the lower mold 4 drives the pressure rod 46 to move through the support block 43, so that the pressure rod 46 contacts the inclined surface 55 of the sliding seat 56. When it continues to move, the pressure rod 46 will squeeze the inclined surface 55, thereby causing the sliding seat 56 to slide. The sliding seat 56 drives the adjusting block 53 to slide along the inner wall of the support frame 5 through the sliding rod 54. The spring 52 is compressed, and the adjusting block 53 drives the rack 57 to move. The movement of the rack 57 drives the gear 58 to rotate. The gear 58 drives the support platform 32 to rotate through the rotating shaft 37, thereby rotating the support platform 32 to a horizontal position. When the support platform 32 is rotated to a horizontal position, the pressure rod 46 is located on the side of the sliding seat 56 close to the inclined surface 55. During the process of the lower mold 4 moving into the equipment housing 1, the lower mold 4 drives the pressure rod 46 to move and reset through the support block 43, so that the pressure rod 46 no longer squeezes the sliding seat 56. The spring 52 will drive the adjusting block 53 to move and reset gradually due to the elastic force. The adjusting block 53 drives the rack 57 to move, thereby driving the gear 58 to rotate. The gear 58 drives the support table 32 to rotate to a vertical state for storage through the rotating shaft 37.

[0034] This invention also discloses a hot-pressing method for bamboo-wood composite materials, comprising the following steps: Step 1: Grind the rice straw into needle-like or strip-like shapes, crush the bamboo into bamboo shreds, and break the wood into wood chips. Mix the three materials separately, apply glue, control the moisture content, and screen to remove impurities. Lay the core layer in layers, cover it with preheated and glued wood veneer, and vent and pre-press the blank. Place the blank into the lower mold 4, start the upper hot press plate 14 and the lower hot press plate 22, and drive the upper heat insulation plate 12 downward through the hydraulic cylinder 13, thereby driving the upper hot press plate 14 and the upper mold 11 to move, so that the upper mold 11 and the lower mold 4 fit together, and perform hot pressing operation with the upper hot press plate 14 and the lower hot press plate 22. Step 2: After hot pressing and cooling, start the first electric push rod 26. The first electric push rod 26 drives the slider 25 to slide along the slide groove 23. The slider 25 drives the lower hot pressing plate 22 and the lower mold 4 to move to one end of the support frame 2 through the lower heat insulation plate 21. During the movement, the protrusion 41 first moves along the transverse groove of the connecting groove 38. When it reaches the connection between the transverse groove and the oblique groove, the lower mold 4 continues to move and will drive the protrusion 41 to move along the oblique groove of the connecting groove 38. Thus, when the lower mold 4 moves, it drives the two sets of protrusions 41 to move upward. The protrusion 41 drives the ejector rod 44 to move upward through the lifting frame 42, thereby gradually ejecting the hot-pressed blank to the top of the lower mold 4. Step 3: During the movement of the lower mold 4, the lower mold 4 drives the pressure rod 46 to move through the support block 43, so that the pressure rod 46 contacts the inclined surface 55 of the sliding seat 56. When it continues to move, the pressure rod 46 will squeeze the inclined surface 55, thereby causing the sliding seat 56 to slide. The sliding seat 56 drives the adjusting block 53 to slide along the inner wall of the support frame 5 through the sliding rod 54. The spring 52 is compressed, and the adjusting block 53 drives the rack 57 to move. The movement of the rack 57 drives the gear 58 to rotate. The gear 58 drives the support platform 32 to rotate through the rotating shaft 37, thereby rotating the support platform 32 to a horizontal position. When the support platform 32 is rotated to a horizontal position, the pressure rod 46 is located on the side of the sliding seat 56 close to the inclined surface 55. The second electric push rod 35 is activated. The second electric push rod 35 drives the push plate 36 to move. The push plate 36 can push the finished product out through the guide plate 34 for unloading. Step 4: When not in use, activate the first electric push rod 26. The first electric push rod 26 drives the slider 25 to move and reset. The slider 25 drives the lower heat insulation plate 21 to move into the equipment housing 1. During the process of the lower mold 4 moving into the equipment housing 1, the protrusion 41 will first move along the inclined groove of the connecting groove 38, thereby driving the lifting frame 42 to move downward. The lifting frame 42 drives the ejector rod 44 to move downward. When the protrusion 41 moves to the connection between the inclined groove and the transverse groove, the ejector rod 44 is completely retracted into the inner wall of the lower mold 4. When moving further, the protrusion 41 will move along the transverse groove of the connecting groove 38. At the same time, the lower mold 4 drives the pressure rod 46 to move and reset through the support block 43, so that the pressure rod 46 no longer squeezes the sliding seat 56. The spring 52 will drive the adjusting block 53 to gradually move and reset due to the elastic force. The adjusting block 53 drives the rack 57 to move, thereby driving the gear 58 to rotate. The gear 58 drives the support table 32 to rotate to a vertical position for storage through the rotating shaft 37.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot pressing device for bamboo and wood composite materials, comprising a housing (1), characterized in that: The inner cavity of the equipment housing (1) is fixedly connected to a rectangular array of multiple hydraulic cylinders (13). The output end of the hydraulic cylinders (13) is fixedly connected to an upper heat insulation plate (12). The bottom of the upper heat insulation plate (12) is sequentially equipped with an upper hot press plate (14) and an upper mold (11). The inner cavity of the equipment housing (1) is fixedly connected to a support frame (2). The top of the support frame (2) is slidably connected to a lower heat insulation plate (21). The support frame (2) is provided with a moving component for moving the lower heat insulation plate (21). The lower heat insulation plate (21) is sequentially equipped with a lower hot press plate (22) and a lower mold (4). The lower mold (4) is provided with an ejection mechanism inside. The support frame (2) is symmetrically fixedly connected with a fixing frame (3). One of the fixing frames (3) is fixedly connected with two fixing frames (3) on its outer side. The fixing frame (3) is provided with a pusher assembly on one side.

2. The hot pressing device for bamboo and wood composite materials according to claim 1, characterized in that: The moving component includes symmetrically opened grooves (23) on the top of the support frame (2). A first electric push rod (26) is installed in the inner cavity of the groove (23). A slider (25) is fixedly connected to the output end of the first electric push rod (26). The slider (25) is slidably connected to the groove (23). The top end of the slider (25) is fixedly connected to the lower heat insulation plate (21).

3. The hot pressing device for bamboo and wood composite materials according to claim 1, characterized in that: The top of the support frame (2) is symmetrically provided with guide grooves (24), and the inner wall of the guide groove (24) is slidably connected with a guide block (27). The top of the guide block (27) is fixedly connected to the lower heat insulation plate (21).

4. The hot pressing device for bamboo and wood composite materials according to claim 1, characterized in that: The ejection mechanism includes symmetrically opened lifting grooves (45) inside the lower mold (4). A lifting frame (42) is slidably connected inside the lifting groove (45). Multiple ejection rods (44) are fixedly connected to the top of the lifting frame (42) in a rectangular array. Protrusions (41) are symmetrically fixedly connected to both sides of the lifting frame (42). A connecting frame (33) is fixedly connected to the top of the fixed frame (3). A connecting groove (38) is opened inside the connecting frame (33) to cooperate with the protrusions (41). The protrusions (41) and the connecting groove (38) slide in contact.

5. The hot pressing device for bamboo and wood composite materials according to claim 1, characterized in that: The feeding assembly includes a rotating shaft (37) rotatably connected between two fixed blocks (31) via bearings. Two support platforms (32) are fixedly connected to the outside of the rotating shaft (37). A second electric push rod (35) is installed on the top of the support platform (32). A feeding plate (36) is fixedly connected to the output end of the second electric push rod (35). A guide plate (34) is fixedly connected to the top of the fixed frame (3) away from the fixed block (31).

6. The hot pressing device for bamboo and wood composite materials according to claim 5, characterized in that: One of the fixed blocks (31) has an adjustment component on its outer side for driving the rotating shaft (37) to rotate. The adjustment component includes a support frame (5) fixedly connected to the outer side of the fixed block (31). An adjustment block (53) is slidably connected to the inner wall of the support frame (5). A rack (57) is fixedly connected to the top of the adjustment block (53). One end of the rotating shaft (37) passes through the fixed block (31) and is fixedly connected to a gear (58) that works with the rack (57).

7. The hot pressing device for bamboo and wood composite materials according to claim 6, characterized in that: The outer side of the support frame (5) is provided with a trigger component for moving the adjustment block (53). The trigger component includes a slide rod (54) fixedly connected to the outer side of the adjustment block (53). The slide rod (54) is slidably connected to the support frame (5). One end of the slide rod (54) passes through the support frame (5) and is fixedly connected to a sliding seat (56). The outer side of the lower mold (4) is fixedly connected to a support block (43). The bottom of the support block (43) is fixedly connected to a pressure rod (46). The outer side of the sliding seat (56) is provided with an inclined surface (55) that cooperates with the pressure rod (46).

8. A hot pressing device for bamboo and wood composite materials according to claim 6, characterized in that: The support frame (5) is provided with a reset assembly for driving the adjustment block (53) to reset. The reset assembly includes two limiting rods (51) fixedly connected to the inner cavity of the support frame (5). The adjustment block (53) is slidably sleeved on the limiting rods (51). A spring (52) is sleeved on the outside of the limiting rods (51) and on one side of the adjustment block (53).

9. A hot-pressing method for bamboo-wood composite materials, using the hot-pressing apparatus for bamboo-wood composite materials according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Grind the rice straw into needle-like or strip-like shapes, crush the bamboo into bamboo shreds, and break the wood into wood chips. Mix the three materials separately, apply glue, control the moisture content, and screen to remove impurities. Lay the core layer in layers, cover it with preheated and glued wood veneer, and vent and pre-press the blank. Place the blank into the lower mold (4), start the upper hot press plate (14) and the lower hot press plate (22), and drive the upper heat insulation plate (12) downward through the hydraulic cylinder (13), thereby driving the upper hot press plate (14) and the upper mold (11) to move, so that the upper mold (11) and the lower mold (4) fit together, and cooperate with the upper hot press plate (14) and the lower hot press plate (22) to perform hot pressing operation. Step 2: After hot pressing and cooling, start the first electric push rod (26). The first electric push rod (26) drives the slider (25) to slide along the slide groove (23). The slider (25) drives the lower hot press plate (22) and the lower mold (4) to move to one end of the support frame (2) through the lower heat insulation plate (21). During the movement, the protrusion (41) first moves along the transverse groove of the connecting groove (38). When it reaches the connection between the transverse groove and the inclined groove, the lower mold (4) continues to move and will drive the protrusion (41) to move along the inclined groove of the connecting groove (38). Thus, when the lower mold (4) moves, it drives the two sets of protrusions (41) to move upward. The protrusion (41) drives the ejector rod (44) to move upward through the lifting frame (42), thus gradually ejecting the hot-pressed blank to the top of the lower mold (4). Step 3: During the movement of the lower mold (4), the lower mold (4) drives the pressure rod (46) to move through the support block (43), causing the pressure rod (46) to contact the inclined surface (55) of the sliding seat (56). As it continues to move, the pressure rod (46) will squeeze the inclined surface (55), thereby causing the sliding seat (56) to slide. The sliding seat (56) drives the adjusting block (53) to slide along the inner wall of the support frame (5) through the sliding rod (54). The spring (52) is compressed, and the adjusting block (53) drives the rack (57) to move. The movement of the rack (57) drives the gear (58) to rotate. The gear (58) drives the support platform (32) to rotate through the shaft (37), thereby rotating the support platform (32) to a horizontal position. When the support platform (32) is rotated to a horizontal position, the pressure rod (46) is located on the side of the sliding seat (56) close to the inclined plane (55). The second electric push rod (35) is activated. The second electric push rod (35) drives the push plate (36) to move. The finished product can be pushed out through the guide plate (34) for unloading operation via the push plate (36). Step 4: When not in use, start the first electric push rod (26). The first electric push rod (26) drives the slider (25) to move and reset. The slider (25) drives the lower heat insulation plate (21) to move into the equipment housing (1). During the process of the lower mold (4) moving into the equipment housing (1), the protrusion (41) will first move along the inclined groove of the connecting groove (38), thereby driving the lifting frame (42) to move downward. The lifting frame (42) drives the ejector rod (44) to move downward. When the protrusion (41) moves to the connection between the inclined groove and the transverse groove, the ejector rod (44) completes its movement. When the entire lower mold (4) is placed inside the inner wall, as it continues to move, the protrusion (41) will move along the transverse groove of the connecting groove (38). At the same time, the lower mold (4) will move and reset the pressure rod (46) through the support block (43), so that the pressure rod (46) will no longer squeeze the sliding seat (56). The spring (52) will gradually move and reset the adjusting block (53) due to the elastic force. The adjusting block (53) will move the rack (57), thereby driving the gear (58) to rotate. The gear (58) will drive the support table (32) to rotate to a vertical position for storage through the rotating shaft (37).

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