Foam board cutting machine

Abstract

This application discloses a foam board cutting machine, relating to the field of cutting equipment technology. It includes a frame, a first conveying assembly mounted on the frame, and a second conveying assembly positioned above the first conveying assembly. The first and second conveying assemblies are parallel, forming a conveying cavity between them. Multiple heating wires for cutting foam board are disposed within the conveying cavity. A cleaning device for removing deposits from the heating wires is mounted on the frame. The foam board cutting machine of this application, by setting two limiting assemblies, constrains and limits the multiple heating wires, enabling the heating wires to form a stable cutting section between the two limiting wheels. Simultaneously, a reciprocating shifting mechanism drives the heating wires to reciprocate along their length, effectively cleaning the surface of the heating wires and improving the flatness of the cut, in conjunction with the scraping action of the scraping unit.

Description

Technical Field

[0001] This application relates to the field of cutting equipment technology, and more particularly to a foam board cutting machine. Background Technology

[0002] Foam boards are widely used in packaging, insulation, soundproofing, and building decoration. In the processing of foam boards, a relatively thick foam board blank or semi-finished product is usually first produced through a foaming molding process. Then, according to actual usage requirements, the foam board blank is cut into multiple layers of thinner foam boards to meet the thickness requirements of different product specifications.

[0003] A typical foam board cutting machine includes a frame, a lower conveyor mechanism, an upper conveyor mechanism, and multiple heating wires positioned between the upper and lower conveyor mechanisms. During processing, the foam board moves along a predetermined direction under the clamping and conveying action of the lower and upper conveyor mechanisms, while the heating wires cut the foam board into multi-layered sheet-like boards through heating and melting. However, foam materials are prone to melting, carbonizing, or softening during heated cutting, and some molten material, powder, or residue adheres to the surface of the heating wires. As cutting time increases, these deposits gradually accumulate, altering the actual cutting state of the heating wire surface. This not only changes the contact state between the heating wire and the foam board, increasing local cutting resistance, but also may affect heat transfer, impacting the smoothness of the cut surface. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this application is to provide a foam board cutting machine, which sets two limiting components to constrain and limit multiple heating wires, so that the heating wires can form a stable cutting section between the two limiting wheels; at the same time, the reciprocating displacement mechanism drives the heating wires to move back and forth along their own length direction, and in conjunction with the scraping action of the scraping unit, effectively cleans the surface of the heating wires and avoids affecting the flatness of the cut.

[0006] To achieve the above objectives, this application provides a foam board cutting machine, including a frame, a first conveying assembly mounted on the frame, and a second conveying assembly positioned above the first conveying assembly. The first and second conveying assemblies are parallel, and a conveying cavity is formed between the first and second conveying assemblies. Multiple heating wires for cutting foam boards are disposed within the conveying cavity. The machine also includes a cleaning device for removing deposits from the heating wires, the cleaning device comprising: Two limiting components are symmetrically arranged on both sides of the frame. Each limiting component is provided with multiple limiting wheels, and multiple heating wires are respectively wound around the corresponding limiting wheels in the two limiting components. Two guide wheel sets are symmetrically arranged on both sides of the frame to guide the reversal of the heating wires wound on the limit wheels; A reciprocating shifting mechanism is mounted on a frame below the first conveying assembly. The reciprocating shifting mechanism includes a guide and two platforms slidably mounted on the guide. The two ends of each heating wire are respectively mounted on the two platforms. When the two platforms move closer or further apart, the heating wire located in the cutting section between the two corresponding limiting wheels moves back and forth along its own length. Multiple scraping units are respectively set on one side of multiple limit wheels near the center of the conveying chamber, and are used to scrape off the deposits on the heating wire when the heating wire moves back and forth.

[0007] In addition, the foam board cutting machine proposed in this application may also have the following additional technical features: In one embodiment of this application, a plurality of connecting posts are fixed on one of the carriers, and one end of a plurality of heating wires is respectively connected to the plurality of connecting posts via guide wheel sets; a plurality of tension adjustment units are provided on another carrier, and the other end of a plurality of heating wires is respectively connected to the plurality of tension adjustment units via guide wheel sets.

[0008] In one embodiment of this application, the tension adjustment unit includes an electric push rod disposed on a platform, a tension sensor disposed at the output end of the electric push rod, and an elastic element disposed at the measuring end of the tension sensor. The heating wire is connected to the elastic element. The electric push rod is controlled to extend and retract to adjust the tension of the heating wire according to the detection data of the tension sensor.

[0009] In one embodiment of this application, the limiting component includes a mounting plate fixed on the frame, a guide rail disposed on the mounting plate, and a plurality of movable seats slidably mounted on the guide rail. The plurality of limiting wheels are respectively rotatably mounted on the plurality of movable seats. The spacing between adjacent movable seats and the spacing between the bottom movable seat and the conveying surface of the first conveying component are adjusted by a layer height adjustment mechanism.

[0010] In one embodiment of this application, the floor height adjustment mechanism includes a plurality of adjusting screws, which are parallel to the guide rail. The plurality of adjusting screws are threadedly connected to a plurality of movable seats. The lower end of the adjusting screw on the upper movable seat of two adjacent movable seats is rotatably mounted on the lower movable seat. The lower end of the adjusting screw on the lowest movable seat is rotatably mounted on the mounting plate.

[0011] In one embodiment of this application, the slag scraping unit includes a base shell disposed on a movable seat and two scrapers slidably mounted on the base shell. The base shell is provided with a control mechanism for driving the two scrapers to alternately rise and fall. The scrapers are provided with V-shaped grooves for scraping the heating wire. When the heating wire moves from the center of the conveying cavity to the movable seat, the scraper closer to the movable seat descends and scrapes the heating wire. During the resetting process of the heating wire, the scraper farther away from the movable seat descends and scrapes the heating wire, so that the deposits on the heating wire fall off between the two scrapers.

[0012] In one embodiment of this application, a slag scraping motor is fixed on the base shell, a first gear is fixed on the output shaft of the slag scraping motor, and a first rack that meshes with the first gear is provided on both scrapers. The slag scraping motor drives the two scrapers to rise and fall alternately. A slag collection box for receiving fallen attached material is provided below the base shell.

[0013] In one embodiment of this application, the guide includes a base plate fixed to the frame and two parallel slide rails fixed to the base plate. A connecting plate is slidably mounted on each of the two slide rails. A second rack is fixed on the connecting plate. A shifting motor is fixed on the base plate. A second gear that meshes with the two second racks is fixed on the output shaft of the shifting motor. The two platforms are respectively fixed on the two connecting plates. The shifting motor and the slag scraping motor are activated in coordination.

[0014] In one embodiment of this application, the frame is provided with a height adjustment mechanism for adjusting the distance between the upper conveying surface of the first conveying component and the lower conveying surface of the second conveying component. The height adjustment mechanism includes a plurality of lead screws, which are parallel and rotatably mounted on the frame. The axis of the lead screws is perpendicular to the upper conveying surface of the first conveying component. The second conveying component is threadedly engaged with the plurality of lead screws. When the plurality of lead screws rotate, the second conveying component rises and falls on the frame.

[0015] In one embodiment of this application, both the first conveying component and the second conveying component are belt conveyors. The inner side of the conveying belt of the belt conveyor is provided with a support plate, which is used to keep the conveying surface flat when the conveying surface of the conveying belt contacts the foam board.

[0016] Compared with the prior art, this application has at least the following beneficial effects: By setting limiting components and guide wheel groups on both sides of the frame, the heating wire can form a stable cutting section between the two limiting wheels; at the same time, in order to clean the cutting residue on the heating wire in time, the reciprocating shifting mechanism set below the first conveying component drives the two platforms to move closer or further apart, so that the heating wire wound between the two limiting wheels can move back and forth along its own length direction. This allows the scraping unit set on the side of the limiting wheel near the center of the conveying cavity to scrape off the residue on the surface of the reciprocating heating wire, thereby reducing the adhesion and accumulation of foam melt or cutting residue on the surface of the heating wire, reducing the impact of the residue on the effective cutting diameter, heating uniformity and cutting resistance of the heating wire, and keeping the heating wire in a relatively stable cutting state during continuous cutting, thereby improving the flatness of the foam board layer cutting and reducing the cutting deviation caused by the accumulation of residue on the surface of the heating wire.

[0017] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a perspective view of the overall structure of a foam board cutting machine according to an embodiment of this application.

[0019] Figure 2 This is a rear view of the overall structure of a foam board cutting machine according to an embodiment of this application.

[0020] Figure 3 This is a schematic diagram showing the position of the limiting component on the frame in a foam board cutting machine according to an embodiment of this application.

[0021] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0022] Figure 5 This is a rear-view perspective view of the overall structure of the cleaning device in a foam board cutting machine according to an embodiment of this application.

[0023] Figure 6 for Figure 5 A magnified view of a section at point B in the middle.

[0024] Figure 7 This is a front perspective view of the overall structure of the cleaning device in a foam board cutting machine according to an embodiment of this application.

[0025] Figure 8 for Figure 7A magnified view of a section at point C.

[0026] Figure 9 for Figure 7 A magnified view of a section at point D.

[0027] Figure 10 This is a front view of the cleaning device in a foam board cutting machine according to an embodiment of this application.

[0028] Figure 11 for Figure 10 A magnified view of a section at point E in the middle.

[0029] Figure 12 This is a cross-sectional view of the slag scraping unit in a foam board cutting machine according to an embodiment of this application.

[0030] As shown in the figure: 1. Frame; 2. First conveying assembly; 3. Second conveying assembly; 4. Heating wire; 5. Limiting assembly; 6. Limiting wheel; 7. Guide wheel assembly; 8. Guide component; 9. Platform; 10. Slag scraping unit; 11. Connecting column; 12. Tension adjustment unit; 13. Electric push rod; 14. Tension sensor; 15. Elastic component; 16. Mounting plate; 17. Guide rail; 18. Movable seat; 19. Adjusting screw; 20. Base shell; 21. Scraper; 22. V-groove; 23. Slag scraping motor; 24. First gear; 25. First rack; 26. Slag collection box; 27. Base plate; 28. Slide rail; 29. ​​Connecting plate; 30. Second rack; 31. Shifting motor; 32. Second gear; 33. Lead screw. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0032] The foam board cutting machine of this application embodiment will now be described with reference to the accompanying drawings.

[0033] like Figures 1 to 12As shown in the embodiment of this application, the foam board cutting machine, when performing layered cutting of foam boards, first enters the conveying cavity formed between the first conveying component 2 and the second conveying component 3. Both the first conveying component 2 and the second conveying component 3 are belt conveyors, and the conveying length of the first conveying component 2 is greater than the conveying length of the second conveying component 3. The first conveying component 2 supports the foam board from below, and the second conveying component 3 is located above the first conveying component 2, used to cooperate with the first conveying component 2 to apply appropriate pressure to the foam board, so that the foam board moves within the conveying cavity formed between the upper conveying surface of the first conveying component 2 and the lower conveying surface of the second conveying component 3, preventing it from jumping up and down or shifting during conveying. A support plate, fixedly connected to the housing of the belt conveyor, is fixedly attached to the inner side of the conveyor belt. When the conveyor belt contacts the foam board, the support plate provides support from the inside of the conveyor belt, keeping the conveying surface flat and reducing dents in the belt caused by span, foam board reaction force, or localized pressure. For the second conveying assembly 3, the pallet can reduce the problem of uneven pressure caused by local sagging of the conveyor belt; for the first conveying assembly 2, the pallet can enhance the flatness of the lower supporting surface, so that the foam board maintains a stable posture when entering the cutting area of ​​the heating wire 4. After the flatness of the upper and lower conveying surfaces is improved, the deviation between the cutting position of the heating wire 4 and the actual pressure state of the foam board is reduced, which helps to improve the consistency of the layer thickness.

[0034] like Figure 2 As shown, multiple (preferably three) heating wires 4 are arranged laterally in the conveying cavity. When the foam board moves forward continuously in the conveying direction, the multiple heating wires 4 simultaneously perform multi-layer cutting on the foam board by heating and melting.

[0035] To prevent the heating wires 4 from being affected by the adhesion of foam melt, powder, or carbonized residue during continuous cutting, limiting components 5 are respectively provided on both sides of the frame 1 in this embodiment. Each limiting component 5 has a number of limiting wheels 6 rotatably installed in the same number as the number of heating wires 4. Multiple heating wires 4 are respectively wound around the corresponding limiting wheels 6 in the limiting components 5 on both sides, forming multiple parallel cutting lines. Through the limiting and guiding of the corresponding limiting wheels 6 on both sides, the heating wires 4 form a relatively stable straight cutting section in the conveying cavity, so that the heating wires 4 are not easily deviated from the predetermined cutting height position due to changes in the traction direction at both ends and the resistance of the foam board, thereby ensuring that the thickness of each layer of the foam board after being cut has good consistency.

[0036] like Figures 3 to 5 As shown, the heating wire 4, after passing the corresponding limiting wheel 6, is redirected by the guide wheel located in the limiting assembly 5 and continues to extend downwards. The two guide wheel groups 7 symmetrically arranged on both sides of the frame 1 each have guide wheels rotatably installed at multiple positions to guide the heating wire 4 in reversal. After being redirected by the guide wheel groups 7, the multiple heating wires 4 finally connect to the two platforms 9 located below the first conveying assembly 2. Figure 5 As can be seen, the two platforms 9 are slidably mounted on the guide member 8, and the sliding directions of the two platforms 9 on the guide member 8 are parallel. When the two platforms 9 move towards or away from each other, the two ends of the heating wire 4 synchronously change position, causing the cutting section of the heating wire 4 located between the two limiting wheels 6 to move along the length of the heating wire 4 itself. As the platforms 9 move back and forth on the guide member 8, the cutting section of the heating wire 4 also moves back and forth. Since the limiting wheels 6 still spatially constrain the cutting section of the heating wire 4, although the heating wire 4 moves axially, its cutting height and lateral position in the conveying cavity can remain stable, and the cutting trajectory will not be significantly changed by the cleaning action. It should be noted that since the heating wire 4 needs to be connected to a power source to heat up, the limiting wheels 6, guide wheels, and guide wheel group 7 that are in direct contact with the heating wire 4 are all made of heat-resistant insulators, such as ceramics.

[0037] During the reciprocating movement of the heating wire 4, a scraping unit 10, located on the side of the limiting wheel 6 near the center of the conveying chamber, scrapes the heating wire 4 as it passes this position to clean and remove any adhering substances. Since the adhering substances generated during foam board cutting typically move along the surface of the heating wire 4 until they approach the limiting wheel 6, the scraping unit 10 in this area ensures that the adhering substances are removed before contacting the limiting wheel 6. This reduces the possibility of the limiting wheel 6 getting stuck, accumulating adhering substances, or experiencing increased localized wear after entering the wheel groove. In this way, the heating wire 4 maintains a relatively clean surface during continuous cutting, reducing the impact of adhering substances on the effective cutting diameter, heating uniformity, and cutting resistance of the heating wire 4, thereby improving the flatness of the foam board cut surface.

[0038] The guide wheel assembly 7 can adopt a form in which multiple guide wheels change direction in sequence. As long as the heating wire 4 can be smoothly guided to the position of the platform 9 after passing the limiting wheel 6, and the frictional resistance of the heating wire 4 is reduced when the platform 9 moves, it can be applied to this embodiment.

[0039] To more clearly illustrate the connection method between the heating wire 4 and the carrier 9, as follows: Figures 5 to 9As shown, multiple connecting posts 11 are fixed on one of the platforms 9. One end of each of the multiple heating wires 4 is connected to the corresponding connecting post 11 via a guide wheel assembly 7. The connection between the connecting post 11 and the platform 9 is an insulated connection. An electrode with a power supply wire electrically connected to the heating wire 4 is provided on the connecting post 11. Multiple tension adjustment units 12 are provided on the other platform 9. The other end of each of the multiple heating wires 4 is connected to the corresponding tension adjustment unit 12 via the guide wheel assembly 7. In this way, one end of each heating wire 4 can serve as a relatively stable traction end, and the other end can serve as an adjustable tension end. When the two platforms 9 move synchronously in opposite directions to drive the heating wires 4 to reciprocate, the connecting posts 11 and the tension adjustment units 12 participate in the traction from both ends of the heating wires 4, so that the heating wires 4 can maintain the necessary tension during cleaning and cutting, reducing the problem of vibration caused by thermal expansion, scraping resistance, or long-term use.

[0040] Specifically, such as Figure 9 As shown, the tension adjustment unit 12 includes an electric push rod 13 fixed on one of the platforms 9, a tension sensor 14, and an elastic element 15. The heating wire 4 is connected to the elastic element 15, which absorbs the impact of instantaneous tension changes generated during the reciprocating movement and scraping of the heating wire 4, preventing the heating wire 4 from deforming or breaking due to rigid tension. Simultaneously, the elastic element 15 and the heating wire 4 are also insulated from each other, and the other electrode of the power supply wire is electrically connected to the end of the heating wire 4 near the elastic element 15, so that the power supply equipment can heat the heating wire 4 through the power supply wire. The tension sensor 14 is a commonly used sensor in the prior art, which can be used to detect the actual tension of the heating wire 4. When the tension is too low, the electric push rod 13 can increase the tension of the heating wire 4 by extension and retraction adjustment; when the tension is too high, the electric push rod 13 can be adjusted in the opposite direction, cooperating with the elastic element 15 to release part of the tension. Therefore, the heating wire 4 can maintain a relatively stable working tension when heating and cutting, axial displacement, and slag scraping occur. In some alternative implementations, the tension adjustment unit 12 may also use other equivalent drive structures capable of outputting controllable linear displacement to replace the electric push rod 13; the elastic element 15 may be selected from springs, elastic sheets or elastic gel components, etc., according to the specifications of the heating wire 4.

[0041] like Figure 11As shown, the slag scraping unit 10 in this embodiment includes a base shell 20 and two scraper blades 21. The two scraper blades 21 are slidably mounted on the base shell 20 and can move in parallel. To control the displacement of the scraper blades 21, a slag scraping motor 23 is fixed on the base shell 20. A first gear 24 is fixed on the output shaft of the slag scraping motor 23, and a first rack 25 that meshes with the first gear 24 is fixed on the upper sidewall of the two scraper blades 21. Through the cooperation between the first gear 24 and the first rack 25 on the two scraper blades 21, when the slag scraping motor 23 rotates forward or reverse, it can drive the two scraper blades 21 to rise and fall alternately, that is, only one scraper blade 21 scrapes the heating wire 4 at a time. The scraper blades 21 are provided with V-shaped grooves 22 for scraping the heating wire 4. The V-shaped grooves 22 on the scraper blades 21 can be set with a corresponding included angle or groove depth according to the diameter of the heating wire 4, so that the V-shaped grooves 22 can effectively contact the surface of the heating wire 4 without excessively clamping the heating wire 4.

[0042] As the heating wire 4 moves from the center of the conveying chamber towards the limiting wheel 6, the scraper 21 near the limiting wheel 6 descends, causing the heating wire 4 to enter the V-groove 22 of the scraper 21, scraping off the molten residue adhering to the surface of the heating wire 4. When the heating wire 4 reverses and resets, the scraper 21 away from the limiting wheel 6 descends, scraping the heating wire 4 in the opposite direction. The two scrapers 21 alternately participate in scraping, which avoids the problem of deposits accumulating on the side of the scraper 21 near the conveying chamber caused by continuous scraping with a single scraper 21, and prevents the accumulated deposits from being carried back when the heating wire 4 reverses and resets. The alternating participation of the two scrapers 21 in scraping also allows the scraped deposits to concentrate in the area between the two scrapers 21, facilitating subsequent collection.

[0043] Furthermore, as a possible implementation, a removable slag collection box 26 is provided below the base shell 20, allowing the scraped-off deposits to fall directly into the slag collection box 26, preventing them from falling onto the first conveying assembly 2, the second conveying assembly 3, or the surface of the foam board. The lifting and lowering movements of the two scrapers 21 correspond to the movement direction of the heating wire 4, improving the cleaning effect.

[0044] To drive the two platforms 9 to move in coordination, as one possible implementation, the reciprocating shifting mechanism can be achieved via a base plate 27, two slide rails 28, two connecting plates 29, two second racks 30, a shifting motor 31, and a second gear 32. Specifically, the base plate 27 is fixed to the frame 1 below the first conveying assembly 2. The two slide rails 28 are symmetrically fixed to the base plate 27. The two connecting plates 29 are slidably mounted on the two slide rails 28 via multiple sliders. The two platforms 9 are respectively fixed to the two connecting plates 29. The shifting motor 31 is fixed below the base plate 27. A second gear 32 is fixed to the output shaft of the shifting motor 31, and the two second racks 30 are respectively fixed to the two connecting plates 29. When the shifting motor 31 drives the second gear 32 to rotate, the second gear 32 simultaneously meshes with the two second racks 30, causing the two connecting plates 29 to move the two platforms 9 closer together or further apart. Since the two platforms 9 are synchronously driven by the same shift motor 31 via the second gear 32, their movements are synchronized. When one platform 9 pulls one end of the heating wire 4 to move, the other platform 9 also pulls the other end of the heating wire 4 to move, thereby reducing the tension on the heating wire 4 and making the overall movement of the heating wire 4 smoother. The starting states of the shift motor 31 and the scraper motor 23 are coordinated to match the lifting time and sequence of the two scrapers 21 of the scraper unit 10 with the axial movement time and direction of the heating wire 4. The scraper motor 23 is only activated to drive the scraper 21 to contact the heating wire 4 when the heating wire 4 needs to scrape slag. During non-scraping periods, the scraper motor 23 can drive the first gear 24 to rotate at a certain angle, causing one scraper 21 to be lifted and separated from the heating wire 4 by a certain distance. At this time, the other scraper 21 has not yet descended to the point of contacting the heating wire 4. This achieves the goal of both scrapers 21 being separated from the heating wire 4, reducing unnecessary wear.

[0045] Considering that the thickness of the foam board blank and the target layer thickness will vary according to production needs in actual production, if the height spacing between the multiple heating wires 4 in the conveying chamber is fixed, the equipment can only accommodate foam boards of limited specifications. Therefore, the limiting component 5 in this embodiment can also have the function of adjusting the cutting spacing of the heating wires 4. Specifically, the limiting component 5 may include a mounting plate 16, a guide rail 17, and multiple movable seats 18. Multiple limiting wheels 6 are rotatably mounted on the multiple movable seats 18, and the guide wheels are also connected to the movable seats 18 via connecting plates. The mounting plate 16 is fixed to the frame 1, and the guide rail 17 is fixed to the mounting plate 16. The movable seats 18 are slidably mounted on the guide rail 17 and can move up and down along the guide rail 17, allowing the height of the limiting wheel 6 corresponding to each heating wire 4 to be adjusted according to the position of the movable seat 18.

[0046] By adjusting the spacing between adjacent movable seats 18, the cutting layer height between adjacent heating wires 4 can be changed; by adjusting the spacing between the bottom movable seat 18 and the upper conveying surface of the first conveying assembly 2, the distance between the bottom cutting position and the bottom surface of the foam board can be changed. Thus, the equipment can adapt to the cutting needs of foam boards of different thicknesses and different layer specifications.

[0047] like Figure 4 As shown, specifically, the floor height adjustment mechanism may include multiple adjusting screws 19, which are parallel to the guide rail 17. The multiple adjusting screws 19 are threadedly connected to multiple movable seats 18. In two adjacent movable seats 18, the lower end of the adjusting screw 19 on the upper movable seat 18 is rotatably mounted on the lower movable seat 18; the lower end of the adjusting screw 19 in the lowermost movable seat 18 is rotatably mounted on the mounting plate 16. The distance between two adjacent movable seats 18 is adjusted by rotating the corresponding adjusting screw 19, and the height of the lowermost movable seat 18 is also adjusted relative to the mounting plate 16 by the corresponding adjusting screw 19.

[0048] During adjustment, the operator can first determine the cutting height of the bottom layer of foam board, and then adjust the distance between adjacent movable seats 18 layer by layer. Since the limit wheel 6 is directly installed on the movable seat 18, the height of the heating wire 4 in the conveying cavity changes with the position of the movable seat 18. Multiple heating wires 4 are distributed according to the target layer thickness, thereby ensuring that the cutting position of each layer corresponds to the set size.

[0049] To accommodate foam board blanks of varying thicknesses, a height adjustment mechanism is also provided on the frame 1. This mechanism includes multiple lead screws 33, with four or more screws 33. The housings on both sides of the second conveying assembly 3 are threaded into the multiple lead screws 33. These lead screws 33 are rotatably mounted on the frame 1 and parallel to the guide rail 17 and the adjusting screw 19. When the multiple lead screws 33 rotate synchronously, the second conveying assembly 3 can rise and fall relative to the first conveying assembly 2, thereby changing the distance between the upper conveying surface of the first conveying assembly 2 and the lower conveying surface of the second conveying assembly 3. For thicker foam boards, the second conveying assembly 3 can be raised to increase the height of the conveying cavity; for thinner foam boards, the second conveying assembly 3 can be lowered to provide appropriate pressure, thus helping the foam board maintain stable contact during conveying and preventing insufficient clamping that could cause the foam board to lift, tilt, or vibrate locally when in contact with the heating wire 4.

[0050] In summary, the foam board cutting machine of this application embodiment can not only drive multiple heating wires 4 to move axially and clean the adhering substances on the surface of the heating wires 4 with the scraping unit 10, but also adjust the tension through the tension adjustment unit 12 to effectively improve the flatness of the cut surface; at the same time, it has the function of adjusting the spacing of the heating wires 4, which makes it easy to change the cutting thickness and improve the applicability.

[0051] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the 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 one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A foam board cutting machine, comprising a frame (1), a first conveying assembly (2) disposed on the frame (1), and a second conveying assembly (3) disposed above the first conveying assembly (2), wherein the first conveying assembly (2) and the second conveying assembly (3) are parallel, and a conveying cavity is formed between the first conveying assembly (2) and the second conveying assembly (3), wherein a plurality of heating wires (4) for cutting foam boards are disposed within the conveying cavity, characterized in that, It also includes a cleaning device for cleaning deposits on the heating wire (4), the cleaning device comprising: Two limiting components (5) are symmetrically arranged on both sides of the frame (1). Each limiting component (5) is provided with multiple limiting wheels (6), and multiple heating wires (4) are respectively wound around the corresponding limiting wheels (6) in the two limiting components (5). Two guide wheel sets (7) are symmetrically arranged on both sides of the frame (1) to guide the electric heating wire (4) wound on the limit wheel (6) to change direction; A reciprocating shifting mechanism is set on a frame (1) below the first conveying assembly (2). The reciprocating shifting mechanism includes a guide (8) and two platforms (9) slidably mounted on the guide (8). The two ends of each heating wire (4) are respectively set on the two platforms (9). When the two platforms (9) are close to or far from each other, the heating wire (4) located in the cutting section between the two corresponding limiting wheels (6) moves back and forth along its own length direction. Multiple scraping units (10) are respectively set on one side of multiple limiting wheels (6) near the center of the conveying chamber, and are used to scrape off the deposits on the heating wire (4) when the heating wire (4) moves back and forth.

2. The foam board cutting machine according to claim 1, characterized in that, One of the platforms (9) is fixed with multiple connecting posts (11), and one end of multiple heating wires (4) is connected to multiple connecting posts (11) respectively through guide wheel group (7); another platform (9) is provided with multiple tension adjustment units (12), and the other end of multiple heating wires (4) is connected to multiple tension adjustment units (12) respectively through guide wheel group (7).

3. The foam board cutting machine according to claim 2, characterized in that, The tension adjustment unit (12) includes an electric push rod (13) mounted on a platform (9), a tension sensor (14) mounted at the output end of the electric push rod (13), and an elastic element (15) mounted at the measuring end of the tension sensor (14). The heating wire (4) is connected to the elastic element (15). The electric push rod (13) is controlled to extend and retract to adjust the tension of the heating wire (4) according to the detection data of the tension sensor (14).

4. The foam board cutting machine according to claim 1, characterized in that, The limiting component (5) includes a mounting plate (16) fixed on the frame (1), a guide rail (17) set on the mounting plate (16), and a plurality of movable seats (18) slidably mounted on the guide rail (17). The plurality of limiting wheels (6) are respectively rotatably mounted on the plurality of movable seats (18). The spacing between adjacent movable seats (18) and the spacing between the bottom movable seat (18) and the conveying surface of the first conveying component (2) are adjusted by the layer height adjustment mechanism.

5. The foam board cutting machine according to claim 4, characterized in that, The height adjustment mechanism includes multiple adjusting screws (19), which are parallel to the guide rail (17). The multiple adjusting screws (19) are threadedly connected to multiple movable seats (18). The lower end of the adjusting screw (19) on the upper movable seat (18) of two adjacent movable seats (18) is rotatably mounted on the lower movable seat (18). The lower end of the adjusting screw (19) on the lowest movable seat (18) is rotatably mounted on the mounting plate (16).

6. The foam board cutting machine according to claim 4, characterized in that, The slag scraping unit (10) includes a base shell (20) set on a movable seat (18) and two scrapers (21) slidably mounted on the base shell (20). The base shell (20) is provided with a control mechanism for driving the two scrapers (21) to rise and fall alternately. The scraper (21) is provided with a V-shaped groove (22) for scraping the heating wire (4). When the heating wire (4) moves from the center of the conveying cavity to the movable seat (18), the scraper (21) closer to the movable seat (18) descends and scrapes the heating wire (4). During the resetting process of the heating wire (4), the scraper (21) farther away from the movable seat (18) descends and scrapes the heating wire (4), so that the deposits on the heating wire (4) fall off between the two scrapers (21).

7. The foam board cutting machine according to claim 6, characterized in that, A scraper motor (23) is fixed on the base shell (20). A first gear (24) is fixed on the output shaft of the scraper motor (23). A first rack (25) that meshes with the first gear (24) is provided on each of the two scraper blades (21). The scraper motor (23) drives the two scraper blades (21) to rise and fall alternately. A slag collection box (26) for receiving fallen attached materials is provided below the base shell (20).

8. The foam board cutting machine according to claim 7, characterized in that, The guide (8) includes a base plate (27) fixed on the frame (1) and two parallel slide rails (28) fixed on the base plate (27). A connecting plate (29) is slidably installed on each of the two slide rails (28). A second rack (30) is fixed on the connecting plate (29). A shift motor (31) is fixed on the base plate (27). A second gear (32) that meshes with the two second racks (30) is fixed on the output shaft of the shift motor (31). The two platforms (9) are respectively fixed on the two connecting plates (29). The shift motor (31) and the slag scraper motor (23) are in a coordinated starting state.

9. The foam board cutting machine according to claim 1, characterized in that, The frame (1) is provided with a height adjustment mechanism for adjusting the distance between the upper conveying surface of the first conveying component (2) and the lower conveying surface of the second conveying component (3). The height adjustment mechanism includes a plurality of lead screws (33), which are parallel and rotatably mounted on the frame (1). The axis of the lead screws (33) is perpendicular to the upper conveying surface of the first conveying component (2). The second conveying component (3) is threadedly engaged with the plurality of lead screws (33). When the plurality of lead screws (33) rotate, the second conveying component (3) rises and falls on the frame (1).

10. The foam board cutting machine according to claim 1, characterized in that, The first conveying component (2) and the second conveying component (3) are both belt conveyors. The inner side of the conveying belt of the belt conveyor is provided with a support plate, which is used to keep the conveying surface flat when the conveying surface of the conveying belt contacts the foam board.

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