Bidirectional high frequency splicing machine

Abstract

The application discloses a bidirectional high-frequency splicing machine which is used for splicing four wood squares into a large wood square. The bidirectional high-frequency splicing machine comprises a rack, a baffle, a first pressing head mechanism, a second pressing head mechanism and electrode sheets, wherein the electrode sheets comprise positive electrode sheets and negative electrode sheets. The baffle is installed on the rack. Two first pressing head mechanisms and two second pressing head mechanisms are symmetrically arranged. The two second pressing head mechanisms simultaneously act on two wood squares in a horizontal direction to apply pressure to the two wood squares respectively, so that the two wood squares are firmly pressed on the baffle. The two first pressing head mechanisms apply pressure to the other two wood squares in a vertical direction respectively. Through the transverse and longitudinal pressure applying mode, the four wood squares can be integrally spliced through one gluing and pressing process, so that the technological process is greatly simplified. The wood square cumulative deformation caused by multiple pressings is avoided. The dimensional stability of the finished wood square is improved. Therefore, the overall quality level of the product is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of woodworking machinery technology, and in particular to a two-way high-frequency splicing machine and a four-way splicing method for timber. Background Technology

[0002] In current timber four-piece processing technology, a staged splicing method is commonly used. Specifically, two raw timbers are first initially spliced ​​together using glue and pressure to form a preliminary timber product. After the preliminary timber product has cured and set, the two preliminary timber products are then spliced ​​together again to form the final finished timber product. This step-by-step splicing process has a significant efficiency bottleneck: because it requires two independent splicing processes, the entire processing cycle is significantly extended, making it difficult to improve production efficiency. More importantly, wood, as a natural material, has significant deformation characteristics. Under the current process, the timber needs to withstand two glue and pressure processes, each of which causes varying degrees of deformation in the wood fiber structure. This repeated pressure not only accumulates deformation errors but also reduces the dimensional stability of the finished product due to the stress release characteristics of wood, ultimately causing the dimensional tolerances of the finished timber product to exceed the allowable range, seriously affecting the overall quality and performance of the product. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, a first aspect of this invention proposes a bidirectional high-frequency splicing machine for splicing four timbers into a large timber. The bidirectional high-frequency splicing machine includes a frame, a baffle, a first pressure head mechanism, a second pressure head mechanism, and electrode plates, the electrode plates including a positive electrode plate and a negative electrode plate; the baffle is mounted on the frame; two first pressure head mechanisms are provided, the two first pressure head mechanisms are mounted side-by-side on the top of the frame; two second pressure head mechanisms are provided, the two second pressure head mechanisms are arranged vertically and layered, the two second pressure head mechanisms are mounted on the frame; the positive electrode plate is mounted on one of the second pressure head mechanisms, and the negative electrode plate is mounted on the back of the baffle.

[0004] According to some embodiments of the present invention, an anti-adhesion plate is installed on the back side of the baffle, and a negative electrode plate is installed between the anti-adhesion plate and the baffle. The anti-adhesion plate increases insulation to ensure safety.

[0005] Furthermore, a grounding copper strip is installed at the bottom of the protective sheet, which is connected to the ground wire to ensure safe use.

[0006] According to some embodiments of the present invention, the frame includes a top crossbeam and a machine base located below the top crossbeam.

[0007] According to some embodiments of the present invention, the first pressure head mechanism includes a first cylinder and a first pressure head. The first cylinder is vertically fixed on the top crossbeam, and the piston rod of the first cylinder is connected to the first pressure head. The first pressure head is pushed and pulled longitudinally by the first cylinder.

[0008] According to some embodiments of the present invention, the second pressure head mechanism includes a second cylinder and a second pressure head. The second cylinder is fixed to the top surface of the frame, and the piston rod of the second cylinder is connected to the second pressure head. The second pressure head is pushed and pulled in the horizontal direction by the second cylinder.

[0009] According to some embodiments of the present invention, in order to facilitate the installation of the first pressure head, a first flange is installed on the piston rod of the first cylinder, the first flange is connected to a first pressure beam, and the first pressure head is fixedly installed on the first pressure beam.

[0010] According to some embodiments of the present invention, in order to facilitate the installation of the second pressure head, a second flange is installed on the piston rod of the second cylinder, the second flange is connected to a second pressure beam, and the second pressure head is fixedly installed on the second pressure beam.

[0011] According to some embodiments of the present invention, the first cylinder and the second cylinder are both fixedly mounted on a fixed plate, and a crossbeam is installed between the fixed plate and the frame.

[0012] According to some embodiments of the present invention, a waist-shaped hole is opened on the crossbeam frame, and a fixing bolt is installed in the waist-shaped hole. The fixing bolt is connected to the frame. Since the fixing bolt can move in the waist-shaped hole, the installation position of the first cylinder and the second cylinder can be finely adjusted.

[0013] According to some embodiments of the present invention, a protective rubber plate assembly is specially designed and installed on the back side of the baffle. This protective rubber plate is made of high-strength insulating material, maintains a certain distance from the metal baffle, and has a negative electrode device disposed between them. This special design of the protective rubber plate effectively increases the insulation performance of the overall structure, thereby ensuring the operational safety of the equipment under high-voltage working conditions.

[0014] According to some embodiments of the present invention, a grounding copper strip assembly is specially fitted at the bottom edge of the protective sheet. This grounding copper strip is made of high-quality conductive copper and is connected to the equipment grounding system through a reliable connection method. This dual protection design can promptly conduct any static electricity or leakage current that may be generated into the ground, further improving the safety level during equipment use.

[0015] According to some embodiments of the present invention, the entire frame mainly consists of a top crossbeam and a machine platform located below it. The first pressure head mechanism and the second pressure head mechanism are important actuating components of the equipment, and their components include a first cylinder drive device and a first pressure head working component. The first cylinder is firmly fixed to the top crossbeam in a vertical mounting manner, and its piston rod is connected to the first pressure head. The precise pushing and pulling action of the first pressure head in the longitudinal direction is realized by the piston movement of the first cylinder.

[0016] According to some embodiments of the present invention, the second pressure head mechanism also adopts a cylinder-driven design, including a second cylinder power unit and a second pressure head execution component. The second cylinder is horizontally mounted on the top platform of the frame, and the piston rod of the second cylinder is connected to the second pressure head through a transmission mechanism. The reciprocating motion of the second cylinder realizes the precise push-pull operation of the second pressure head in the horizontal direction.

[0017] According to some embodiments of the present invention, a first flange connector is specially designed at the end of the piston rod of the first cylinder to facilitate the installation and adjustment of the first pressure head. This flange is made of high-strength steel and is reliably fixed to the first pressure head via a first pressure beam that serves as a transition connector. This modular design ensures transmission accuracy, guarantees connection strength, and facilitates maintenance and replacement.

[0018] According to some embodiments of the present invention, also for ease of installation, a second flange assembly is provided at the end of the piston rod of the second cylinder. This flange is securely connected to the second pressure head via a second pressure beam that serves as a transition connector. This design ensures both the accuracy of transmission and the strength of the connection, while also facilitating maintenance and replacement.

[0019] According to some embodiments of the present invention, both the first and second cylinders are fixed to a dedicated mounting plate in a standardized manner. This mounting plate is connected to the main frame via a crossbeam. The crossbeam has specially machined oblong adjustment holes, within which high-strength fixing bolts are installed, forming an adjustable connection with the frame. Because the fixing bolts can be adjusted within the oblong hole range, the mounting positions of the first and second cylinders can be finely adjusted, thereby ensuring the alignment accuracy and operational coordination of the various actuators.

[0020] The second aspect of this invention provides a four-joint method for timber, employing the aforementioned bidirectional high-frequency joining machine, the processing steps of which include: Step 1: During the work process, the surface of the four independent wooden blocks needs to be evenly coated with adhesive. Then, they are precisely aligned and spliced ​​according to the predetermined positional relationship so that the four wooden blocks are combined into a whole large wooden block structure. During the splicing, a clear cross-shaped joint structure will be formed between the four wooden blocks.

[0021] Step 2: The preliminarily bonded timber is sent to the processing area.

[0022] Step 3: First, two symmetrically arranged second pressing head mechanisms operate simultaneously. These two pressing head mechanisms apply pressure to two of the timbers from the horizontal direction, pressing them firmly against the baffle, thereby ensuring that the large timber is subjected to uniform lateral compressive force.

[0023] Step 4: After the transverse pressing process is completed, the two first pressing head mechanisms begin to work. These two pressing head mechanisms apply pressure to the other two timbers in the vertical direction, subjecting the large timbers to longitudinal pressing force. Through this alternating transverse and longitudinal pressing method, it is ensured that the four timbers are fully pressed and contacted in all directions, achieving a tight bond.

[0024] Step 5: After all mechanical pressing processes are completed, the system will start the working program of the negative and positive electrodes. At this time, the wood itself acts as a conductive medium, forming a complete high-frequency electric field circuit between the negative and positive electrodes. The heat energy generated by the high-frequency electric field is used to quickly cure the adhesive, thus finally completing the firm bonding between the four wood pieces.

[0025] The present invention has at least the following beneficial effects: This innovative process offers several technological advantages: First, four timbers only require a single gluing and pressing process to complete the overall splicing, greatly simplifying the process. Second, it avoids the cumulative deformation of the timber caused by multiple pressing processes in traditional methods. Third, it significantly improves the dimensional stability of the finished timber. Finally, it ensures that the dimensional tolerances of the finished timber are always controlled within the allowable range, thereby effectively improving the overall quality of the product. This process not only improves production efficiency but also guarantees product consistency and reliability, bringing significant technological progress to the timber processing field.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an overall schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 Enlarged diagram of A in the middle; Figure 3 This is a schematic diagram of the first pressure head mechanism according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the second pressure head mechanism according to an embodiment of the present invention. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] Reference Figure 1 A bidirectional high-frequency splicing machine is used to splice four timbers into a large timber. The bidirectional high-frequency splicing machine includes a frame 100, a baffle 200, a first pressure head mechanism 300, a second pressure head mechanism 400, and electrode plates, including a positive electrode plate 500 and a negative electrode plate 600. The frame includes a worktable 130, on which timbers are placed, and the baffle 200 is installed on the worktable 130. There are two first pressure head mechanisms 300, which are installed side by side above the frame 100. There are also two second pressure head mechanisms 400, which are arranged vertically and are installed on the frame 100. The positive electrode plate 500 is installed on one of the second pressure head mechanisms 400, and the negative electrode plate 600 is installed on the back of the baffle 200.

[0031] During the process, adhesive is first evenly applied to the surfaces of four individual timbers. Then, they are precisely aligned and spliced ​​according to a predetermined positional relationship, so that the four timbers are combined into a large, integrated timber structure. During splicing, a distinct cross-shaped joint structure will be formed between the four timbers.

[0032] After the initial bonding of the large timber is sent into the processing area, two symmetrically arranged second pressing head mechanisms 400 operate simultaneously. These two pressing head mechanisms apply pressure to two of the timbers from the horizontal direction, pressing them firmly against the baffle 200, thereby ensuring that the large timber is subjected to uniform lateral compressive force.

[0033] After the transverse pressing process is completed, the two first pressing head mechanisms 300 begin to work. These two pressing head mechanisms apply pressure to the other two timbers in the vertical direction, subjecting the large timbers to longitudinal pressing force. Through this alternating transverse and longitudinal pressing method, it is ensured that the four timbers are fully pressed and contacted in all directions, achieving a tight bond.

[0034] After all mechanical pressing processes are completed, the system will start the working program of the negative electrode 600 and the positive electrode 500. At this time, the wood itself acts as a conductive medium, forming a complete high-frequency electric field circuit between the negative electrode 600 and the positive electrode 500. The heat energy generated by the high-frequency electric field is used to quickly cure the adhesive, thereby finally completing the firm bonding between the four wood pieces.

[0035] This innovative process offers several technological advantages: First, four timbers only require a single gluing and pressing process to complete the overall splicing, greatly simplifying the process. Second, it avoids the cumulative deformation of the timber caused by multiple pressing processes in traditional methods. Third, it significantly improves the dimensional stability of the finished timber. Finally, it ensures that the dimensional tolerances of the finished timber are always controlled within the allowable range, thereby effectively improving the overall quality of the product. This process not only improves production efficiency but also guarantees product consistency and reliability, bringing significant technological progress to the timber processing field.

[0036] Reference Figure 1 As shown, specifically, the baffle 200 is made of metal, and an anti-adhesion plate 210 is installed on the back side of the baffle 200. A negative electrode plate 600 is installed between the anti-adhesion plate 210 and the baffle 200. The anti-adhesion plate 210 increases insulation to ensure safety.

[0037] Furthermore, a grounding copper strip 220 is installed at the bottom of the protective sheet 210, which is connected to the ground wire to further ensure safe use.

[0038] Reference Figure 1 As shown, the frame 100 includes a top crossbeam 110 and a machine base 120 located below the top crossbeam 110. A first pressing head mechanism 300 is fixedly installed on the top crossbeam 110, and a second pressing head mechanism 400 is fixedly installed on the machine base 120. The worktable 130 is located between the top crossbeam 110 and the machine base 120.

[0039] Reference Figure 3 As shown, specifically, the first pressing head mechanism 300 includes a first cylinder 310 and a first pressing head 320. The first cylinder 310 is fixed on the top crossbeam 110, and the piston rod of the first cylinder 310 is connected to the first pressing head 320. The first pressing head 320 is pushed and pulled longitudinally by the first cylinder 310.

[0040] The first cylinder 310 is a driving device and the first pressure head 320 is a working component. The first cylinder 310 is firmly fixed to the top crossbeam 110 by vertical installation, and its piston rod is connected to the first pressure head 320. The precise pushing and pulling action of the first pressure head 320 in the longitudinal direction is realized by the piston movement of the first cylinder 310.

[0041] To facilitate the installation and adjustment of the first pressure head 320, a first flange 330 connector is specially designed at the end of the piston rod of the first cylinder 310. This flange is made of high-strength steel and is reliably fixed to the first pressure head 320 through the first pressure beam 340, which serves as a transition connector. This modular design ensures the accuracy of transmission, guarantees connection strength, and facilitates maintenance and replacement.

[0042] The first pressure head mechanism 300 is fixedly installed with a first fixing plate 350. Specifically, the first cylinder 310 is fixedly installed on the first fixing plate 350. The first fixing plate 350 and the top crossbeam 110 are connected by a first crossbeam frame 360.

[0043] Reference Figure 4 As shown, specifically, the second pressing head mechanism 400 includes a second cylinder 410 and a second pressing head 420. The second cylinder 410 is fixed to the top surface of the machine base 120. The piston rod of the second cylinder 410 is connected to the second pressing head 420. The reciprocating motion of the second cylinder 410 realizes the precise pushing and pulling operation of the second pressing head 420 in the horizontal direction.

[0044] For ease of installation, a second flange 430 assembly is provided at the end of the piston rod of the second cylinder 410; the flange is firmly connected to the second pressure head 420 through the second pressure beam 440, which serves as a transition connector. This design ensures both the accuracy of transmission and the strength of the connection, and is also convenient for maintenance and replacement.

[0045] The second pressing head mechanism 400 is fixedly installed with a second fixing plate 450. Specifically, the second cylinder 410 is fixedly installed on the second fixing plate 450. The second fixing plate 450 is connected to the machine base 120 through a second crossbeam frame 460.

[0046] A waist-shaped hole is opened on the crossbeam 110 frame, and a fixing bolt is installed in the waist-shaped hole. The fixing bolt is connected to the frame 100. Since the fixing bolt can move in the waist-shaped hole, the installation position of the first cylinder 310 and the second cylinder 410 can be finely adjusted.

[0047] Reference Figure 1 The schematic diagram shows a specially designed and installed anti-adhesion plate 210 assembly on the back side of the baffle 200. This anti-adhesion plate 210 is made of high-strength insulating material and maintains a certain distance from the metal baffle 200, with a negative electrode plate 600 positioned between them. This special design of the anti-adhesion plate 210 effectively increases the insulation performance of the overall structure, thereby ensuring the operational safety of the equipment under high-voltage working conditions.

[0048] Furthermore, a grounding copper strip 220 assembly is specially installed at the bottom edge of the protective sheet 210. This grounding copper strip 220 is made of high-quality conductive copper and is connected to the equipment grounding system through a reliable connection method. This dual protection design can promptly conduct any static electricity or leakage current that may be generated into the ground, further enhancing the safety level during equipment use.

[0049] Both the first cylinder 310 and the second cylinder 410 are fixed to a dedicated mounting plate using a standardized method. This mounting plate is connected to the main body of the frame 100 via a crossbeam 110. The crossbeam 110 has specially machined oblong adjustment holes, into which high-strength fixing bolts are installed, forming an adjustable connection with the frame 100. Because the fixing bolts can be adjusted within the oblong hole range, the mounting positions of the first cylinder 310 and the second cylinder 410 can be finely adjusted, ensuring the alignment accuracy and operational coordination of each actuator.

[0050] The four-way splicing method for timber, using the aforementioned two-way high-frequency splicing machine, includes the following processing steps: Step 1: During the work process, the surface of the four independent wooden blocks needs to be evenly coated with adhesive. Then, they are precisely aligned and spliced ​​according to the predetermined positional relationship so that the four wooden blocks are combined into a whole large wooden block structure. During the splicing, a clear cross-shaped joint structure will be formed between the four wooden blocks.

[0051] Step 2: The preliminarily bonded timber is sent to the processing area.

[0052] Step 3: First, two symmetrically arranged second pressing head mechanisms 400 operate simultaneously. These two pressing head mechanisms apply pressure to two of the timbers from the horizontal direction, pressing them firmly against the baffle 200, thereby ensuring that the large timber is subjected to uniform lateral compressive force.

[0053] Step 4: After the transverse pressing process is completed, the two first pressing head mechanisms 300 begin to work. These two pressing head mechanisms apply pressure to the other two timbers in the vertical direction, subjecting the large timbers to longitudinal pressing force. Through this alternating transverse and longitudinal pressing method, it is ensured that the four timbers are fully pressed and contacted in all directions, achieving a tight bond.

[0054] Step 5: After all mechanical pressing processes are completed, the system will start the working program of the negative electrode 600 and the positive electrode 500. At this time, the wood itself acts as a conductive medium, forming a complete high-frequency electric field circuit between the negative electrode 600 and the positive electrode 500. The heat energy generated by the high-frequency electric field is used to quickly cure the adhesive, thereby finally completing the firm bonding between the four wood pieces.

[0055] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.

[0056] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A bidirectional high-frequency splicing machine, characterized in that, The bidirectional high-frequency splicing machine is used to splice four wooden blocks into a large wooden block, which is formed by stacking two wooden blocks in two layers, with two wooden blocks in each layer. A frame (100) includes a workbench (130) on which timber is placed; A baffle (200) is mounted on the worktable (130); The first pressing head mechanism (300) is provided in two, and the two first pressing head mechanisms (300) are installed side by side above the frame (100). The two first pressing head mechanisms (300) press a wooden block in the vertical direction respectively. The second pressing head mechanism (400) is provided in two layers, and the two second pressing head mechanisms (400) are arranged in layers above and below each other. The two second pressing head mechanisms (400) are installed on the frame (100). The two second pressing head mechanisms (400) press a piece of wood onto the baffle (200) in the horizontal direction respectively. The electrode sheet includes a positive electrode sheet (500) and a negative electrode sheet (600). The positive electrode sheet (500) is mounted on one of the second pressure head mechanisms (400), and the negative electrode sheet (600) is mounted on the back of the baffle (200). A high-frequency electric field loop is formed between the negative electrode sheet (600) and the positive electrode sheet (500) using a wooden block as a conductor.

2. The bidirectional high-frequency splicing machine according to claim 1, characterized in that, A protective plate (210) is installed on the back side of the baffle (200), and the negative electrode plate (600) is installed between the protective plate (210) and the baffle (200). The baffle (200) is made of metal.

3. The bidirectional high-frequency splicing machine according to claim 2, characterized in that, The bottom of the anti-adhesive plate (210) is equipped with a grounding copper strip (220).

4. The bidirectional high-frequency splicing machine according to claim 1, characterized in that, The frame (100) also includes a top crossbeam (110) and a machine platform (120) located below the top crossbeam (110). The workbench (130) is located between the top crossbeam (110) and the machine platform (120). The first pressure head mechanism (300) is fixedly installed on the top crossbeam (110), and the second pressure head mechanism (400) is fixedly installed on the machine platform (120).

5. The bidirectional high-frequency splicing machine according to claim 4, characterized in that, The first pressure head mechanism (300) includes a first cylinder (310) and a first pressure head (320). The first cylinder (310) is fixed on the top crossbeam (110), and the piston rod of the first cylinder (310) is connected to the first pressure head (320).

6. The bidirectional high-frequency splicing machine according to claim 5, characterized in that, A first flange (330) is installed on the piston rod of the first cylinder (310), and a first pressure beam (340) is connected to the first flange (330). The first pressure head (320) is fixedly installed on the first pressure beam (340).

7. The bidirectional high-frequency splicing machine according to claim 4, characterized in that, The second pressure head mechanism (400) includes a second cylinder (410) and a second pressure head (420). The second cylinder (410) is fixed to the top surface of the machine base (120). The piston rod of the second cylinder (410) is connected to the second pressure head (420). The positive electrode plate (500) is installed on the second pressure head (420).

8. The bidirectional high-frequency splicing machine according to claim 7, characterized in that, A second flange (430) is installed on the piston rod of the second cylinder (410), and a second pressure beam (440) is connected to the second flange (430). A second pressure head (420) is fixedly installed on the second pressure beam (440).

9. The bidirectional high-frequency splicing machine according to claim 4, characterized in that, The first pressure head mechanism (300) is fixedly installed with a first fixing plate (350), and the first fixing plate (350) is connected to the top crossbeam (110) through a first crossbeam frame (360); The second pressure head mechanism (400) is fixedly mounted with a second fixing plate (450), and the second fixing plate (450) is connected to the machine base (120) through a second crossbeam frame (460).

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