Method for producing core material of composite board

Abstract

The present application provides a method for producing core materials of composite panels, which relates to the field of automated production technology. The method comprises: continuously transporting a first core material raw material in end-to-end contact along a first direction to form a continuously extended first core material layer; processing continuous embedded grooves on the upper surface of the continuously extended first core material layer as the first core material layer extends and is transported; and continuously placing threading tubes in the continuous embedded grooves to form a continuously extended first core material layer pre-embedded with continuous threading tubes. The method of the present application can continuously produce core materials pre-embedded with threading tubes, and can automatically cut the continuously extended first core material layer to a predetermined length using a cutting device according to the requirements of the composite panel for the size of the first core material layer to obtain a first core material layer whose overall size meets the requirements. Compared with manual operation, the method can effectively reduce manual labor, improve production efficiency, and can be applied to the automated production of composite panels.

Description

Technical Field

[0001] The present application relates to the field of automated production technology, and in particular to a method for producing a core material of a composite board. Background Art

[0002] Composite panels such as clean panels and insulation panels are generally used to build laboratories, sterile rooms, clean rooms, etc. because they have one or more functions such as fire resistance, heat preservation, dustproof, antistatic, and antibacterial.

[0003] In existing technology, to embed electrical wires, communication cables, and other functional cables within composite panels and prevent them from being exposed, wire conduits are typically embedded within the core material of the composite panel. This often requires workers to manually machine grooves into one or more core materials during the production of each composite panel, assemble the core materials into a frame, and then insert conduits into the grooves to complete the core material formation.

[0004] However, in the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the current manual production of molded core materials is labor-intensive and inefficient, and automated production cannot be achieved. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a method for producing a core material of a composite board material, so that the core material with pre-embedded wire tubes can be continuously formed to achieve complex automated continuous production.

[0006] To solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] In a first aspect, the present application provides a method for producing a core material of a composite board, which is used for automated production of the composite board, comprising:

[0008] Conveying the first core material continuously in end-to-end contact along a first direction to form a continuously extending first core material layer;

[0009] As the first core material layer is extended and transported, continuous embedded grooves are processed on the upper surface of the continuously extended first core material layer;

[0010] Threading tubes are continuously placed in the continuous pre-buried grooves to form a first core material layer that is continuously extended and pre-buried with continuous threading tubes.

[0011] In some modified embodiments of the first aspect of the present application, the method of machining continuous embedded grooves on the upper surface of the continuously extended first core material layer as the first core material layer is extended and transported includes:

[0012] The continuous embedded grooves are processed by milling, and dust collection is performed at the corresponding milling positions.

[0013] In some embodiments, the core material production method of the composite board includes: processing the continuous embedded grooves with rectangular cross-sections by milling.

[0014] In some embodiments, the method of continuously placing threading tubes in the continuous embedded grooves includes:

[0015] As the first core material layer is continuously transferred, the threading tubes are rolled down into the pre-buried groove in sequence with their ends close to each other by a rolling tube-dropping method;

[0016] Alternatively, as the first core material layer is continuously transmitted, the threading tube is pushed into the pre-buried groove along the first direction and falls into the pre-buried groove above the pre-buried groove, and the head end of the threading tube that enters the pre-buried groove later is pressed against the tail end of the threading tube that has entered the pre-buried groove.

[0017] In some embodiments, the core material production method of the composite board comprises: after applying glue in the continuous embedded grooves, continuously placing the threading tubes into the embedded grooves;

[0018] Alternatively, glue is applied to the entire upper surface of the first core material layer that is continuously extended after the continuous embedded grooves are processed, and then the threading tubes are continuously placed in the embedded grooves.

[0019] In some embodiments, the width and depth of the embedded groove are 1-2 mm greater than the diameter of the threading tube.

[0020] In some embodiments, the method of continuously conveying the first core material in end-to-end contact along the first direction to form a continuously extending first core material layer includes:

[0021] Applying glue to at least one of the first and last ends of the first core material;

[0022] Afterwards, the first core material raw material is continuously transported with the ends bonded together.

[0023] In some embodiments, the method for producing a core material of a composite board further comprises:

[0024] Pasting second core material raw materials on the upper surface and / or lower surface of the continuously extended first core material layer in sequence and in end-to-end contact to form a second core material layer, and the second core material layer is stacked in at least one layer to form a continuously extended composite core material;

[0025] Wherein, the material of each second core material layer is the same or different.

[0026] In some embodiments, the method for producing a core material of a composite board further includes: applying pressure to the composite core material in a direction perpendicular to the thickness of the composite core material to perform thickness trimming.

[0027] In some embodiments, the core material production method of the composite board further includes: trimming both sides of the composite core material in the width direction as the composite core material is continuously extended and transmitted, so that both sides of the composite core material in the width direction are straight.

[0028] Compared with the existing technology, the core material production method of the composite board provided in the present application forms a continuously extended first core material layer by continuously transporting the first core material raw material in contact with each other end to end, and when the first core material layer is continuously extended and transported, a continuous embedded groove is processed on the upper surface of the first core material layer, and then a wire threading tube is continuously placed in the embedded groove, finally forming a continuously extended core material with a continuous wire threading tube embedded therein. It can be seen that this method can continuously produce core materials with pre-embedded wire tubes (i.e., the first core material layer). In this way, after producing the continuously extended first core material layer with pre-embedded wire tubes, the user can use the cutting equipment to automatically cut the continuously extended first core material layer to a fixed length according to the requirements of the produced composite board for the size of the first core material layer, and then automatically obtain the first core material layer with an overall size that meets the requirements. The first core material layer can also be automatically cut into different sizes as needed to meet the core material needs of composite boards of different sizes, so that the same production line can automatically produce composite boards of different models. Compared with manual operation, the use of this method can effectively reduce manpower labor, improve production efficiency, and can be applied to the automated production of composite boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0030] Figure 1 A flow chart schematically illustrates a method for producing a core material of a composite board;

[0031] Figure 2 A flow chart of another method for producing a core material of a composite board is schematically shown. DETAILED DESCRIPTION

[0032] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0035] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0037] Composite panels are formed by sandwiching a core material in the middle of metal plates on both sides and are widely used. Cleanroom panels are a representative example, and are widely used in clean engineering fields with stringent requirements on indoor environments, such as electronics, pharmaceuticals, food, biology, aerospace, precision instrument manufacturing, and scientific research.

[0038] Cleanroom panels have always been manufactured semi-manually, particularly the assembly of the metal panels, frames, and core materials. Specifically, the cleanroom panels are first machined to form the metal panels into a box shape (hereinafter referred to as the upper and lower boxes), and the frames are machined to meet the dimensions required to fit within the box. These are then assembled manually.

[0039] The manual assembly work includes: the staff first lifts the lower box body and places it on the designated work station, and then puts the frame into the lower box body; then takes the core material block or board (such as two or more of rock wool block, glass magnesium board, aluminum honeycomb board, magnesium oxysulfide board, silica rock board, gypsum board, etc.), cuts a pre-buried groove on the core material block, and then puts the assembled core material into the frame of the lower box body to form a layer (for single-layer core material, the core material is filled), and then puts the threading pipe in the pre-buried groove; if it is a composite board with multi-layer core material, the corresponding laying of multiple layers is required. Layers of core material raw materials are laid out, and when the core material layer that needs to be processed with embedded grooves is laid, the embedded grooves are processed first and the wire conduits are placed in, and then other core material layers are assembled to eventually form a multi-layer composite core material; and in order to fill the space in the frame, the core material blocks or boards placed in need to be cut until the core material blocks or boards fill the frame; finally, the upper box body is picked up and the cover is put on the lower box body to completely wrap the core material and the frame, and then sent to the molding machine for extrusion molding, so that the upper and lower box bodies are firmly connected together, and the frame and core material are firmly wrapped in the middle.

[0040] As can be seen from the above, in manual production, workers not only need to assemble and cut core materials into the frame, but also need to process embedded grooves and place wire conduits on the corresponding core materials. These operations must be performed sequentially for each single composite panel, which is not only time-consuming, labor-intensive, and inefficient, but also makes continuous production impossible.

[0041] In order to solve the above problems, the inventors found that it is necessary to carry out automated production of composite panels, including automatically transporting the metal sheets along the production line after forming the upper and lower boxes, automatically forming the core material (composite core material with at least two layers) (with dimensions and number of layers that meet the requirements of fitting inside the frame) and automatically transporting it to the production line, automatically placing the frame into the production line for transport, and automatically assembling the upper and lower boxes, the core material and the frame on the production line. This application relates to a method for automatically forming the core material for automated production of composite materials, specifically:

[0042] like Figure 1 As shown, the embodiment of the present application provides a method for producing a core material of a composite board, which is used for the automated production of the composite board, comprising:

[0043] 101. Continuously transport the first core material in an end-to-end contact manner along a first direction to form a continuously extended first core material layer.

[0044] Specifically, the raw material of the first core material can be one of rock wool, glass magnesium board, silica rock board, glass wool, gypsum, etc., and can be specifically selected according to production needs.

[0045] Among them, the first direction is the transmission direction of the production transmission line. In the automated production of composite panels, a suitable grabbing or suction device can be set according to the characteristics of the first core material, and the first core material can be placed on the production transmission line. For example, if the first core material is in block form (such as rock wool), the first core material can be grabbed from the material pile or feeding device and placed on the production transmission line. If the first core material is in plate form, it can also be put on the line by grabbing, or it can be put on the production transmission line by suction or other methods that can move the first core material, that is, as long as the first core material can be stably and accurately placed on the production transmission line. In order to enable the first core material to form a first core material layer that is continuously extended and has no gaps, so as to ensure the subsequent continuous processing of the embedded groove, the first core material needs to be transported in a continuous contact manner from head to tail. For example, the first core material, whether it is a block or a plate, is placed on the production transmission line in a contact manner along the transmission direction, and then a continuous extended transmission state can be formed, that is, a continuously extended first core material layer is formed.

[0046] Furthermore, when forming the first core material layer, the first core material raw materials may not be connected to each other, as long as they maintain continuous end-to-end contact. When used as the core material of a composite board with a single-layer core material, the first core material layer can be bonded between the upper and lower box bodies by glue sprayed on the upper and lower box bodies to form a stable core material; when used as the core material of a composite board with a multi-layer composite core material, it can be bonded with other core material raw materials on the upper and lower sides to form an integral multi-layer composite core material.

[0047] Alternatively, glue may be applied to at least one of the two ends of the first core material (it may be spray glue, pour glue or roll glue, and subsequent gluing can be adaptively selected according to the specific situation). For example, glue may be applied to the head end, the tail end or both the head and the tail end of the first core material. That is, as long as at least one of the two ends of the two adjacent first core material materials used for bonding is coated with glue, the head end and the tail end are the head and tail ends of the first core material along the transmission direction. Afterwards, the glued first core material materials are continuously placed in the production transmission line in sequence, and the first core material materials placed in the production transmission line in sequence are bonded and transmitted head to tail in sequence, thereby forming a first core material layer in which adjacent first core material materials are connected head to tail.

[0048] When glue is sprayed onto the end of the first core material, the glue spraying port of the glue spraying device can be positioned above the first core material at a certain angle relative to the end of the first core material, thereby performing glue spraying at a downward angle. Alternatively, the glue spraying port of the glue spraying device can be positioned below the first core material at a certain angle relative to the end of the first core material, thereby performing glue spraying at an upward angle. These two glue spraying methods allow for spraying of the first core material relative to the movement of the glue spraying port (either movement of the first core material or movement of the glue spraying port) when glue spraying is also required on the upper or lower surface of the first core material.

[0049] Furthermore, when gluing the end portion of the first core material, the first core material can be in a stationary state, for example, it can be in a suspended stationary state after being grasped. In this state, gluing can be performed in a relatively convenient location for the gluing device. Alternatively, when gluing the end portion of the first core material, the first core material can be in a moving state along the transmission direction. For example, a grasping device can grasp the first core material and move it along the transmission direction, and gluing can be performed on the end portion during the movement. In this state, gluing can enable the first core material to quickly catch up with the transmission speed of the production line after gluing, or quickly move to the top of the production line, thereby accelerating the production pace.

[0050] To ensure good bonding between adjacent first core material materials, the first core material material introduced into the production conveyor line can be transported along the production conveyor line, following the order in which the first core material materials were introduced. Specifically, the first core material material introduced into the production conveyor line can be transported at the same speed as the production conveyor line. The first core material material introduced into the production conveyor line is then given a higher speed than the first core material material already on the production conveyor line. The speed difference can be set between 15% and 25%, for example, 20%. The first core material material introduced later into the production conveyor line is then caused to collide with the trailing end of the first core material material on the production conveyor line, exerting a compressive force on the two first core material materials, thereby ensuring good bonding. Finally, the first core material materials on the production conveyor line are connected to form a first core material layer and transported at the same speed as the production conveyor line. Alternatively, the first core material introduced into the production conveyor line can be given a speed equal to the production conveyor line's, and after tracking the first core material along the production conveyor line for a period of time, the first core material introduced into the production conveyor line is accelerated to a speed greater than that of the first core material on the production conveyor line. Finally, after the first core material with the faster speed is introduced into the production conveyor line, the two adjacent first core material materials collide, ensuring a tight bond between the ends. This method of speed tracking followed by bonding can ensure the efficiency of bonding at the end portions while ensuring relatively stable movement of the front and rear first core material pieces.

[0051] 102. As the first core material layer is extended and transported, continuous embedded grooves are processed on the upper surface of the continuously extended first core material layer.

[0052] Specifically, the continuous formation of the first core material layer is maintained, that is, the first core material raw material is continuously placed on the production transmission line with its end to end touching and continuously transmitted. Alternatively, the first core material raw material can be placed on the production transmission line with its end to end touching after gluing at least one of its ends. Afterwards, a milling cutter arranged above the production transmission line, that is, above the first core material raw material, can be used to mill embedded grooves on the upper surface of the first core material layer, and the embedded grooves are formed in the length direction of the first core material layer; at the same time, a dust collection device arranged above the production transmission line, that is, above the first core material raw material, is used to suck away the flying chips generated by milling to prevent dust and flying chips from polluting the production environment. The embedded grooves processed by milling are continuous grooves with a rectangular cross-section. In this way, the first core material layer with embedded grooves can be continuously and automatically produced.

[0053] The number of embedded grooves is not limited to one. When two or more embedded grooves are required, the embedded grooves are milled side by side and spaced apart. The milling equipment can be fixedly installed above the production transmission line, or can be configured to be movable relative to the production transmission line, for example, the milling cutter of the milling equipment can move in the opposite direction of the first direction.

[0054] It should be noted that in order to place the threading tube in the embedded groove stably and with less movement, the width and depth of the embedded groove are preferably 1-2 mm larger than the diameter of the threading tube.

[0055] 103. Continuously placing threading tubes in the continuous embedded grooves to form a first core material layer that is continuously extended and pre-embedded with continuous threading tubes.

[0056] Specifically, steps 101 to 103 are continuous, that is, they can be performed on a continuous transmission production transmission line. After the continuously extended first core material layer mills the continuous embedded grooves, the wire conduit can be continuously placed in the embedded grooves as the first core material layer is transmitted.

[0057] The threading tubes can be placed into the pre-buried groove section by section or one by one, but it is necessary to ensure that the ends of two adjacent sections of threading tubes are in contact or infinitely close. In a specific embodiment, the threading tubes can be placed into the pre-buried groove using the following method:

[0058] With the continuous transmission of the first core material layer, the threading tubes are rolled down into the pre-buried groove in sequence with the end close to the end by using the rolling tube drop method;

[0059] That is, a device for rolling and falling wire tubes is set behind the milling station of the embedded groove. Whenever the transmission extension distance of the first core material layer is equal to the length of the wire tube, a wire tube is rolled into the embedded groove, and then the wire tubes fall into the embedded groove, and the two adjacent wire tubes are connected end to end.

[0060] Alternatively, as the first core material layer is continuously conveyed, the threading tube is pushed into the pre-buried groove in the first direction above the pre-buried groove by a pushing-into-groove method, and the head end of the threading tube that enters the pre-buried groove later is pressed against the tail end of the threading tube that has already entered the pre-buried groove;

[0061] That is, a device capable of pushing the wire tube in sequence can be set above the production transmission line, that is, above the first core material layer, and the device is set behind the milling station of the embedded groove. As the first core material layer with the embedded groove is continuously transmitted and extended, the wire tube is continuously pushed until the transmission extension distance of the first core material layer is equal to the length of the wire tube, and the wire tube completely falls into the embedded groove; during this period, when the wire tube has not completely fallen into the embedded groove, the head end of the wire tube can first fall into the embedded groove, and then as the transmission extension distance of the first core material layer is equal to the length of the wire tube, the wire tube completely falls into the embedded groove; it should be noted that in order to ensure that the two adjacent wire tubes are connected end to end, it is best to push the wire tube that falls into the embedded groove later, so that the head end of the wire tube that falls into the embedded groove later pushes against the tail end of the wire tube that falls into the embedded groove first.

[0062] It can be seen that compared with the existing technology, the core material production method of the composite board provided in the present application forms a continuously extended first core material layer by continuously transporting the first core material raw material in contact with each other end to end, and when the first core material layer is continuously extended and transported, a continuous embedded groove is processed on the upper surface of the first core material layer, and then a wire threading tube is continuously placed in the embedded groove, thereby finally forming a continuously extended core material with a continuous wire threading tube embedded therein. It can be seen that this method can continuously produce core materials with pre-embedded wire tubes (i.e., the first core material layer). In this way, after producing the continuously extended first core material layer with pre-embedded wire tubes, the user can use the cutting equipment to automatically cut the continuously extended first core material layer to a fixed length according to the requirements of the produced composite board for the size of the first core material layer, and then automatically obtain the first core material layer with an overall size that meets the requirements. The first core material layer can also be automatically cut into different sizes as needed to meet the core material needs of composite boards of different sizes, so that the same production line can automatically produce composite boards of different models. Compared with manual operation, the use of this method can effectively reduce manpower labor, improve production efficiency, and can be applied to the automated production of composite boards.

[0063] In a specific embodiment, in order to ensure that the wire conduit has a connecting force with the embedded groove, the wire conduit can be continuously placed in the embedded groove after glue is applied in the continuous embedded groove; or, glue is applied to the entire upper surface of the continuously extended first core material layer after the continuous embedded groove is processed, and then the wire conduit is continuously placed in the embedded groove.

[0064] Specifically, the glue can be sprinkled, sprayed or rolled on the embedded groove, or sprinkled, sprayed or rolled on the entire upper surface of the first core material layer. It can be continuous sprinkling, spraying or rolling on the glue, or intermittent sprinkling, spraying or rolling on the glue, and when applying the glue, the gluing device can move relative to the first core material layer.

[0065] Among them, it is also possible to sprinkle glue, spray glue or roll glue to spray glue after the wire threading tube is placed in the embedded groove. However, regardless of whether glue is applied to the embedded groove in advance or glue is applied after the wire threading tube is placed in the embedded groove, the upper surface of the first core material layer can be rolled after the wire threading tube is placed in the embedded groove to ensure that the wire threading tube can fall completely into the embedded groove.

[0066] like Figure 2 As shown, the embodiment of the present application provides another method for producing a core material of a composite board, which is used for the automated production of the composite board, comprising:

[0067] 201. Continuously transporting the first core material in an end-to-end contact manner along a first direction to form a continuously extending first core material layer.

[0068] 202. As the first core material layer is extended and transported, continuous embedded grooves are processed on the upper surface of the continuously extended first core material layer.

[0069] 203. Continuously placing threading tubes in the continuous embedded grooves to form a first core material layer that extends continuously and is pre-embedded with continuous threading tubes.

[0070] Specifically, steps 201 to 203 may refer to the specific implementation of steps 101 to 103 in the above embodiment, and will not be repeated here.

[0071] 204. The second core material raw material is sequentially pasted on the upper surface and / or lower surface of the continuously extended first core material layer in end-to-end contact to form a second core material layer, and the second core material layer is stacked in at least one layer to form a continuously extended composite core material; wherein the material of each second core material layer is the same or different.

[0072] Specifically, after the continuously extended first core material layer is milled to form a continuous embedded groove and a continuous wire threading tube is placed in the embedded groove, the second core material layer can be further stacked on one side or both sides of the first core material layer according to the requirement of the composite board for the number of core material layers.

[0073] The composite core material formed based on the continuously extended first core material layer can be a two-layer core material material or a multi-layer core material material. When it is a two-layer core material material, the second core material material can be pasted on the upper surface or lower surface of the first core material layer with end to end contact; when there are more than two layers of core material material, the second core material material can be stacked in sequence on the upper surface or lower surface of the first core material layer, or the second core material can be symmetrically pasted on both sides of the first core material layer. In this case, the total number of layers is an odd number, such as 3 layers, 5 layers, 7 layers or more layers. It should be noted that the second core material material of each layer needs to be pasted on the first core material layer or the adjacent second core material layer with end to end contact in sequence. For example, it can be in the opposite direction of the transmission direction of the first core material layer. While the first core material layer maintains continuous extension and transmission, the first core material material is pasted on the first core material layer with end to end contact in sequence to form the second core material layer.

[0074] The second core material can be made from a variety of materials, including rock wool, paper honeycomb, glass magnesium board, aluminum honeycomb, magnesium oxysulfide, silica rock, and gypsum, and can be selected based on production needs. The materials of two adjacent second core layers can be the same or different, and the materials of the second core layers symmetrically arranged on either side of the first core layer can also be the same or different, depending on the needs of the composite board.

[0075] Furthermore, the method of laminating the second core material layer on the first core material layer may be:

[0076] Sprinkle glue on the upper surface of the second core material and stick the second core material layer by layer to the lower surface of the first core material layer; and / or apply glue on the lower surface of the second core material and stick the second core material layer by layer to the upper surface of the first core material layer.

[0077] Specifically, when the second core material is pasted only on the lower surface of the first core material layer, glue can be applied to the upper surface of each piece of the second core material, and then the glued second core material is pasted on the lower surface of the first core material layer in sequence in the opposite direction of the transmission direction of the first core material layer (the first core material layer is continuously extended and continuously transmitted); when the second core material is pasted only on the upper surface of the first core material layer, glue can be applied to the lower surface of each piece of the second core material, and then the glued second core material is pasted on the upper surface of the first core material layer in sequence in sequence in the opposite direction of the transmission direction of the first core material layer (the first core material layer is continuously extended and continuously transmitted). The core material layer is continuously extended and continuously transmitted); when it is necessary to paste the second core material raw material on the upper and lower surfaces of the first core material layer respectively, the second core material raw material can be located on the upper and lower sides of the first core material layer respectively, and glue is applied to the lower surface of the second core material raw material located above the first core material layer, and glue is applied to the upper surface of the second core material raw material located below the first material layer, and then the second core material raw material with glue is sequentially pasted on the upper and lower surfaces of the first core material layer in end to end contact, and the second core material raw material can be pasted on the upper and lower surfaces at the same time, finally forming a continuously extended composite core material.

[0078] 205. Apply pressure to the composite core material in a direction perpendicular to the thickness of the composite core material to perform thickness trimming.

[0079] Specifically, for continuous and stacked composite core materials, the overall thickness of the composite core materials may not meet actual application requirements during the stacking and pasting process, so it is necessary to trim the composite core materials in the thickness direction.

[0080] Among them, considering that the composite core material is a continuous extension of the transmission motion, the following methods can be used when applying pressure in the thickness direction of the composite core material to perform thickness trimming:

[0081] During the transmission of the continuously extended composite core material, rolling pressure is applied to the composite core material. For example, a rolling device can be set on the transmission path of the composite core material on the production transmission line. A row of multiple rollers or rollers can be set above the production transmission line. The thickness dimension is limited by fixed rollers or rollers. When the continuously extended composite core material passes through the thickness space limited between the rollers or rollers and the production transmission line, the composite core material drives the rollers or rollers to rotate, and is rolled in the thickness direction, thereby trimming the thickness. Alternatively, the composite core material can be rolled and pressured from top to bottom, that is, the rollers or rollers set above the production transmission line can be set to move relative to the production transmission line, so as to apply pressure to the composite core material from top to bottom, so that rolling pressure is applied while the composite core material passes, so that the thickness of the composite core material can be trimmed. When the thickness of the composite core material is trimmed by rolling, the threading tube is further pressed into the embedded groove and well combined with the embedded groove.

[0082] Furthermore, in the method of trimming the thickness of the composite core material, hot air may be used to heat the composite core material while rolling and pressing the composite core material, for example, hot air at 60-70 degrees Celsius may be used to heat the composite core material to promote the thickness trimming effect.

[0083] It can be seen that compared with the existing technology, the method provided by the present application can produce a continuously extended composite core material with a pre-embedded wire tube. After that, the user can use the cutting equipment to automatically cut the continuously extended composite core material to a fixed length according to the requirements of the composite core material size of the produced composite board, and then automatically obtain the overall multi-layer composite core material with a pre-embedded wire tube that meets the requirements. The composite core material can also be automatically cut into different sizes as needed to meet the core material needs of composite boards of different sizes, so that the same production line can automatically produce different types of composite boards; in addition, compared with manual production, this method can reduce manpower and improve production efficiency. In conjunction with the method of automatically assembling the metal plates and frames on both sides of the composite board, the composite board can be automatically produced continuously.

[0084] In another embodiment, after obtaining the continuously extended composite core material, since adjacent layers of the laminated core material are prone to misalignment, that is, unevenness is prone to occur in the width direction, before cutting to obtain the core material that meets the requirements of filling the frame of the composite board, the two sides of the continuously extended composite core material in the width direction are trimmed to make the two sides of the continuously extended composite core material in the width direction straight, and the width of the continuously extended composite core material is made to meet the preset size to ensure that after cutting, it can meet the requirements of filling the core material in the composite board frame.

[0085] Among them, the method of trimming the two sides of the continuously extended composite core material in the width direction can be to use a tool to move up and down for cutting, or to use a saw blade for sawing, or to use a reamer for milling the side end surface, that is, as long as the two sides of the continuously extended composite core material in the width direction can be trimmed to be straight.

[0086] In addition, the present application mainly provides the continuous forming of the composite core material in the composite sheet. However, the production method of the composite sheet may also include the following steps in order to achieve automated production:

[0087] As the core material is continuously formed, the upper and lower boxes are also formed and enter the production transmission line. After entering the production transmission line, the inner part of the upper and lower boxes can be glued and then run in parallel with the composite core material on the production transmission line. That is, the molding equipment of the upper and lower boxes is connected to the production transmission line.

[0088] The frame is also pre-formed and transported to the frame loading station of the production transmission line (this station is located before the station where the composite core material is cut into the appropriate size for the core material to be placed in the frame), and is automatically transported to the production transmission line by the handling device and transported on the production line;

[0089] After the prepared single-layer core material with pre-embedded wire tubes, or the composite core material with pre-embedded wire tubes, is cut into core materials of appropriate size for entering the frame, the frame and the cut core materials are simultaneously transported to the next station, where the cut core materials for entering the frame are entered into the frame (either by sliding into the frame from top to bottom or by covering the frame from top to bottom). After that, the frame and the core materials inside are synchronously transported on the production line with the upper and lower box bodies;

[0090] Afterwards, when the frame and lower box body with the core material move to the next station (box entry station), the frame and core material enter the lower box body at the same time (the frame and core material can slide from top to bottom into the lower box body), and the lower box body, carrying the frame and core material, continues to be transported on the production conveyor line together with the upper box body;

[0091] Finally, when the lower box body moves to the next station (fastening station) with the frame and core material together with the upper box body, the flipping and fastening equipment can flip the upper box body and fasten it on the lower box body to complete the assembly of the composite board.

[0092] After that, it can be automatically transferred to the press equipment for press forming, and after press forming, it can be produced as a finished product. Among them, the above-mentioned various actions can be arranged on the same transmission production line, and synchronously transmitted in the same direction. According to the time consumed by each step and the transmission speed, the distance between each step is set, that is, the time interval is adaptively adjusted so that the two parts that need to be combined can meet at the combination station and complete the combination at the combination station; In addition, the above-mentioned production methods can be set in a program, written into the controller or host as a control program, and then combined with the equipment that can automatically transmit and realize the above-mentioned various steps to form an automated production line, thereby realizing the automated production of composite panels.

[0093] In summary, the automated production method of composite panels introduced above can greatly save manpower, reduce the contact between workers and dusty core materials, improve the overall production efficiency of composite panels, make the production plant more automated and intelligent, and bring higher profits to the company.

[0094] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for producing a core material of a composite board, used for automated production of a composite board, characterized in that: include: Conveying the first core material continuously in end-to-end contact along a first direction to form a continuously extending first core material layer; As the first core material layer is extended and transported, continuous embedded grooves are processed on the upper surface of the continuously extended first core material layer; Continuously placing threading tubes in the continuous embedded grooves to form a first core material layer that extends continuously and is pre-embedded with continuous threading tubes; The method of continuously conveying the first core material in end-to-end contact along the first direction to form a continuously extended first core material layer includes: Applying glue to at least one of the first and last ends of the first core material; Afterwards, the first core material is continuously transferred with the end portions bonded together; The method of continuously transferring the first core material by bonding the first core material end to end comprises: Applying glue to the end of the first core material of the preceding piece and conveying it at a first speed; After gluing the end of the next piece of the first core material, the material is accelerated to the first speed, and the first piece of the first core material is tracked for a preset time. Thereafter, the next piece of the first core material is accelerated to the second speed, and the leading end of the next piece of the first core material is bumped against the trailing end of the previous piece of the first core material, so that the two adjacent pieces of the first core material are bonded at both ends. Finally, the bonded first core material is transported at the first speed; wherein the second speed is greater than the first speed; The method for continuously placing the threading tubes in the continuous pre-buried grooves includes: as the continuous first core material layer is conveyed, the threading tubes are rolled into the pre-buried grooves in sequence with their end to end close to each other by a rolling tube-dropping method; or, as the continuous first core material layer is conveyed, the threading tubes are pushed into the pre-buried grooves above the pre-buried grooves in the first direction by a pushing-into-the-groove method, and the head end of the threading tube that enters the pre-buried groove later is pressed against the tail end of the threading tube that has already entered the pre-buried groove.

2. The method for producing a core material of a composite board according to claim 1, characterized in that: The method of machining continuous embedded grooves on the upper surface of the continuously extended first core material layer as the first core material layer is extended and transported includes: The continuous embedded grooves are processed by milling, and dust collection is performed at the corresponding milling positions.

3. The method for producing a core material of a composite board according to claim 2, characterized in that: The continuous embedded groove with a rectangular cross section is processed by milling.

4. The method for producing a core material of a composite board according to any one of claims 1 to 3, characterized in that: After applying glue in the continuous embedded grooves, the threading pipes are continuously placed in the embedded grooves; Alternatively, glue is applied to the entire upper surface of the first core material layer that is continuously extended after the continuous embedded grooves are processed, and then the threading tubes are continuously placed in the embedded grooves.

5. The method for producing a core material of a composite board according to any one of claims 1 to 3, characterized in that: The width and depth of the embedded groove are 1-2 mm greater than the diameter of the threading pipe.

6. The method for producing a core material of a composite board according to any one of claims 1 to 3, characterized in that: Also includes: Pasting second core material raw materials on the upper surface and / or lower surface of the continuously extended first core material layer in sequence and in end-to-end contact to form a second core material layer, and the second core material layer is stacked in at least one layer to form a continuously extended composite core material; Wherein, the material of each second core material layer is the same or different.

7. The method for producing a core material of a composite board according to claim 6, characterized in that: Also includes: The composite core material is pressed in a direction perpendicular to the thickness of the composite core material to perform thickness trimming.

8. The method for producing a core material of a composite board according to claim 6, characterized in that: Also includes: As the continuously extended composite core material is transported, both sides of the composite core material in the width direction are trimmed so that both sides of the composite core material in the width direction are straight.

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