Polyurethane plate production device

Abstract

The invention relates to the technical field of plate production, and particularly discloses a polyurethane plate production device which comprises an equipment support, a conveying roller is fixedly connected to the top of the equipment support, a fixing frame is fixedly connected to the top of the conveying roller, and an upper cutting device is fixedly connected to the side face of the fixing frame. A lower cutting device is fixedly connected to the lower portion of the conveying roller, the upper cutting device comprises a fixed bottom plate, a driving motor is fixedly connected to the bottom of the fixed bottom plate, a winding wheel is fixedly connected to a driving shaft of the driving motor, and the side face of the winding wheel is sleeved with and fixedly connected with a cutting line; the polyurethane plate production device comprises a fixed bottom plate, the bottom of the fixed bottom plate is fixedly connected with the fixed end of a first telescopic rod, the movable end of the first telescopic rod is fixedly connected with a fixed seat, the bottom of the fixed seat is sleeved with and fixedly connected with a guide pipe, and the side face of the fixed bottom plate is fixedly connected with an adjusting device. The purposes of stable cutting and automatic edge covering are achieved.

Description

Technical Field

[0001] This invention relates to the field of sheet material production technology, specifically to a polyurethane sheet material production apparatus. Background Technology

[0002] Rigid polyurethane foam boards are a high-performance polymer composite material. Due to their extremely low thermal conductivity (excellent thermal insulation), high strength-to-weight ratio, good waterproof and moisture-proof properties, and ease of processing and molding, they are widely used in building exterior wall insulation, cold storage construction, industrial insulation, and ship cabins. Traditional polyurethane board production methods have mainly gone through the following stages, accompanied by corresponding technical challenges: First, foam is poured into large molds to produce large-volume polyurethane foam blocks (commonly known as "big loaves of bread"). Then, after curing, they are sawn into flat sheets of the required thickness using specialized cutting machines. This cutting process generates a large amount of waste, resulting in low raw material utilization and low internal density of the foam blocks. The pore structure may have gradient differences, resulting in inconsistent performance of the cut boards, especially the difference in performance between the edges and the center. Usually, only single boards can be produced. If a surface layer (such as color steel, aluminum foil, or fiberglass felt) is required, secondary lamination is necessary, which increases costs and processes. In contrast, polyurethane mixture is injected between two surface materials (such as steel plates or aluminum foil), and closed and foamed in a mold to form a sandwich board with a surface layer in one step. This achieves one-time lamination of the surface materials, resulting in a beautiful and high-strength product. However, each board requires an independent injection, mold closing, curing, and demolding cycle, which cannot significantly improve production efficiency. To produce boards of different lengths and widths, a large number of molds are required. The length of the boards is limited by the molds, resulting in many seams during on-site installation, which affects the overall insulation effect.

[0003] According to patent number CN222155768U, a polyurethane sheet production device with automatic collection function has a pulley mechanism in which pulleys, U-shaped plates, and sliding plates are arranged in a cooperative manner. This effectively ensures that when the cutting device moves downward through the hydraulic press to cut the sheet, the two sets of pulleys will press the sheet to prevent it from moving to the sides, thus ensuring the cutting quality. At the same time, the sheet can move back and forth, which is convenient for cutting into strips.

[0004] However, the above-mentioned equipment uses a traditional cutting blade for cutting, which can easily cause the cutting material to move and result in cutting deviation, thus reducing the cutting quality. Summary of the Invention

[0005] To solve the above technical problems, the present invention is achieved through the following technical solution: a polyurethane board production device, including an equipment support, a conveyor roller fixedly connected to the top of the equipment support, a fixed frame fixedly connected to the top of the conveyor roller, an upper cutting device fixedly connected to the side of the fixed frame, and a lower cutting device fixedly connected to the bottom of the conveyor roller. The upper cutting device includes a fixed base plate, a drive motor fixedly connected to the bottom of the fixed base plate, a winding wheel fixedly connected to the drive shaft of the drive motor, a cutting wire sleeved and fixedly connected to the side of the winding wheel, a fixed end of a first telescopic rod fixedly connected to the bottom of the fixed base plate, a fixed seat fixedly connected to the movable end of the first telescopic rod, a guide tube sleeved and fixedly connected to the bottom of the fixed seat, and an adjustment device fixedly connected to the side of the fixed base plate. The side of the adjustment device is fixedly connected to the side of the fixed frame. The sheet material is guided and moved and fixed by a conveyor roller. The conveyor roller drives the sheet material to move. Activating the first telescopic rod causes the fixed seat to move. The moving guide tube moves, activating the drive motor, which in turn rotates the winding wheel. This rotation moves the cutting wire, which moves back and forth between the guide tube and the lower cutting device, cutting the sheet material into a specific shape. The cutting range is adjusted through the cooperation of the first telescopic rod and the adjusting device, and different angles and positions are achieved through the cooperation of the lower cutting device. Simultaneously, the linkage adjustment between the lower cutting device and the guide tube facilitates the pulling of the cutting wire to an inclined state, making it easier to process sheet materials of specific shapes. The conveyor rollers also provide a wrapping and fixed movement of the sheet material, preventing vibration during cutting and thus improving cutting accuracy.

[0006] Preferably, the winding wheel includes a winding base, a wire-fixing groove is provided on the side of the winding base, a loop spring is fixedly connected to the inner wall of the winding base, a rotating seat is fixedly connected to the end of the loop spring away from the winding base, the bottom of the rotating seat is fixedly connected to the drive shaft of the drive motor, the bottom of the winding base is rotatably connected to the top of the fixed base plate, and the cutting wire is disposed on the inner wall of the wire-fixing groove and fixedly connected to the side of the winding base.

[0007] Preferably, the fixed base includes a connecting base, a fixed ring is fixedly connected to the side of the connecting base, a rotating frame is rotatably connected to the top of the connecting base via a rotating shaft, a guide wheel is rotatably connected to the inner wall of the rotating frame, the side of the connecting base is fixedly connected to the movable end of the first telescopic rod, the guide tube is disposed on the inner wall of the fixed ring and fixedly connected to the fixed ring, the drive shaft of the drive motor rotates to drive the rotating base to rotate, the rotation of the rotating base causes the loop spring to deform, the deformation of the loop spring generates elastic force, the elastic force of the loop spring drives the winding base to rotate, the rotation of the winding base causes the fixing groove to rotate, the rotation of the fixing groove causes the cutting wire to wind and coil, the cutting wire between the side of the winding base and the lower cutting device is prevented from breaking due to direct hard connection under the elastic action of the loop spring, and the winding base rotates elastically on the side of the rotating base through the setting of the loop spring, thereby facilitating the absorption of vibration when the cutting wire is tightened and loosened, maintaining the stability of the cutting wire, improving the cutting accuracy, the cutting wire descends along the inside of the fixed ring under the guidance of the guide wheel, and the rotation setting of the rotating frame facilitates the replacement of the components inside the fixed ring.

[0008] Preferably, the guide tube includes a protective outer tube, a heating coil is sleeved and fixedly connected to the side of the protective outer tube, an arc-shaped guide groove is opened at the bottom of the protective outer tube, a protective inner tube is threaded to the inner wall of the protective outer tube, and the side of the protective outer tube is disposed on the inner wall of the fixing ring and fixedly connected to the inner wall of the fixing ring.

[0009] Preferably, the inner protective tube includes a protective tube, an upper refractive plate is fixedly connected to the inner wall of the protective tube, a lower refractive plate is fixedly connected to the inner wall of the protective tube below the upper refractive plate, a through-screw is fixedly connected to the top of the protective tube, and a wire outlet hole is opened on the side of the through-screw. The through-screw is disposed inside the outer protective tube and threadedly connected to the side of the outer protective tube. The cutting wire passes through the inner wall of the protective tube and is slidably connected to the inner wall of the protective tube. The cutting wire passes through the inside of the outer protective tube and descends inside the protective tube. The refraction of the cutting wire by the upper and lower refractive plates facilitates scraping and cleaning of the surface of the cutting wire. When the cutting wire passes through the inside of the outer protective tube, the heating coil is activated to heat the cutting wire. The heating of the cutting wire heats the plate. The cutting process utilizes a heating element to increase cutting speed and melt the edges of the sheet material, creating an automatic edge banding for easier utilization. The arc-shaped guide groove facilitates angled cutting at different angles, allowing for the cutting of specific shapes. The arc design of the guide groove reduces friction during angled cutting, ensuring smooth operation. Furthermore, the sheet material on the cutting surface is scraped and cleaned by the refraction of the upper and lower refraction plates, guaranteeing cutting quality. When replacing the inner part of the protective outer tube, rotating the through-sleeve releases the inner part of the outer tube, causing the protective tube to detach. The outlet hole facilitates sliding separation of the cutting wire, enabling quick replacement of the protective tube.

[0010] Preferably, the adjustment device includes a fixed plate, an adjustment motor is fixedly connected to the top of the fixed plate, a rotating base is fixedly connected to the drive shaft of the adjustment motor, a brake strip is rotatably connected to the bottom of the rotating base via a rotating shaft, a spring is fixedly connected to the side of the brake strip, a brake ring is sleeved on and rotatably connected to the side of the rotating base, the movable end of a second telescopic rod is fixedly connected to the side of the brake ring via a bracket, the fixed end of the second telescopic rod is fixedly connected to the top of the fixed frame, and the side of the fixed plate is fixedly connected to the side of the fixed base plate.

[0011] Preferably, the conveying roller includes a fixed bracket. A lower forward roller is rotatably connected to the inner wall of the fixed bracket, and a lower reverse roller is rotatably connected to the inner wall of the fixed bracket away from the lower forward roller. An upper forward roller is rotatably connected to the inner wall of the fixed bracket above the lower forward roller, and an upper reverse roller is rotatably connected to the inner wall of the fixed bracket away from the upper forward roller. The bottom of the fixed bracket is fixedly connected to the top of the equipment bracket, and the top of the fixed bracket is fixedly connected to the bottom of the fixed frame. When adjusting the angle, the adjustment motor is started. The drive shaft of the adjustment motor rotates, causing the rotating base to rotate. The rotation of the rotating base causes the brake bar to rotate. Under the action of the brake ring, the brake bar rotates relative to the rotating base. The rotation of the rotating base causes the spring to deform, and the deformation of the spring generates elastic force. The brake bar rotates, engaging with the brake ring to fix the relative position of the fixing plate and the brake ring. This maintains a fixed position during cuts at the same angle. When released, the second telescopic rod is activated, causing the brake ring to descend and disengage from the side of the brake bar. This allows the fixing plate and the fixing frame to rotate freely. The lower forward and lower reverse rollers allow the plate to rotate within the fixing bracket by changing different speeds and directions, facilitating the cutting of different shapes. The upper forward and upper reverse rollers, in conjunction with the lower forward and lower reverse rollers, fix the plate within the fixing bracket, ensuring stable cutting and preventing vertical movement of the plate during the cutting process, which could affect the cutting quality.

[0012] This invention provides a polyurethane sheet production apparatus. It has the following beneficial effects: 1. This polyurethane sheet production device is equipped with a fixed base. The fixed base, in conjunction with the conveyor rollers, ensures the smooth introduction and fixed transport of the sheets. Adjustment of the first telescopic rod allows for flexible movement of the guide tube, thereby adjusting the cutting position and range. A drive motor rotates the winding wheel, causing the cutting line to reciprocate between the guide tube and the lower cutting device, achieving precise cutting of the sheet and enabling the processing of specific shapes. The coordinated operation of the first telescopic rod and the adjustment device allows for flexible adjustment of the cutting path within a certain range. Combined with the lower cutting device, it further supports multi-angle and multi-position cutting requirements. The linkage adjustment of the guide tube and the lower cutting device allows the cutting line to be inclined, which is beneficial for processing complex-shaped sheets. The conveyor rollers provide a wrapping fixation and movement for the sheet, effectively suppressing vibration during the cutting process, thus significantly improving cutting accuracy.

[0013] 2. This polyurethane sheet production device is equipped with a rotating base, employing a combination structure of the rotating base and a retaining spring. When the drive motor rotates the rotating base, the retaining spring deforms and generates elastic force, which in turn drives the winding base to rotate, achieving orderly winding of the cutting wire. This design, through the elastic action of the retaining spring, avoids a rigid connection between the cutting wire and the transmission components, effectively preventing the cutting wire from breaking due to excessive force. Simultaneously, the winding base, relying on the retaining spring, achieves elastic rotation, absorbing vibrations generated during the tightening and loosening of the cutting wire, helping to maintain the stability of the cutting wire and thus improving cutting accuracy. The cutting wire is guided by guide wheels and descends along the inside of the fixed ring. The rotating design of the rotating frame facilitates the replacement of relevant components within the fixed ring, improving maintenance convenience.

[0014] 3. This polyurethane sheet production device is equipped with a cutting line that extends downwards through a protective outer tube and an inner protective tube. The surface of the cutting line is scraped and cleaned by the refraction of the upper and lower refractive plates. When the cutting line passes through the protective outer tube, a heating coil can be activated to heat it, thereby increasing cutting efficiency through temperature rise during the cutting process. The high temperature also melts the edges of the sheet, creating an automatic edge-wrapping effect, facilitating subsequent use of the sheet. The device features an arc-shaped guide groove that can cooperate with the lower cutting device to achieve oblique cutting at different angles to meet the processing requirements of sheets with specific shapes. The arc-shaped guide groove design reduces friction of the cutting line during oblique cutting, making the cutting operation smoother. Sheet residue adhering to the surface of the cutting line is scraped off when passing through the refractive plates, which helps ensure the quality of the cut surface. When it is necessary to replace the protective tube, the through-screw sleeve can be rotated to disengage it from the protective outer tube, and the cutting line can be slid apart using the exit hole, thus achieving quick replacement of the protective tube.

[0015] 4. This polyurethane sheet production device is equipped with an adjustment motor. Starting the motor drives the rotating base to rotate, and the interaction between the brake strip and the brake ring achieves relative fixation of the rotating base. This mechanism maintains a stable locked state during cutting at the same angle, ensuring cutting accuracy. When release is needed, the second telescopic rod moves the brake ring downwards, separating it from the brake strip. At this time, the fixed plate can rotate freely relative to the fixed frame, facilitating angle adjustment. The device is equipped with lower forward and lower reverse rollers, which can drive the sheet to rotate within the fixed support by adjusting the speed and direction, thus supporting the processing of sheets of different shapes. The upper forward and upper reverse rollers, together with the lower roller group, firmly clamp the sheet, effectively preventing the sheet from moving up and down during cutting, ensuring the stability of the cutting process and the forming quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the polyurethane sheet production apparatus of the present invention; Figure 2This is a schematic diagram of the cutting device structure of the present invention; Figure 3 This is a schematic diagram of the winding wheel structure of the present invention; Figure 4 This is a schematic diagram of the fixing base structure of the present invention; Figure 5 This is a schematic diagram of the guide tube structure of the present invention; Figure 6 This is a schematic diagram of the protective inner tube structure of the present invention; Figure 7 This is a schematic diagram of the adjustment device structure of the present invention; Figure 8 This is a schematic diagram of the conveyor roller structure of the present invention.

[0017] In the diagram: 1. Equipment support; 2. Conveyor roller; 3. Fixing frame; 4. Upper cutting device; 5. Lower cutting device; 401. Fixed base plate; 402. Drive motor; 403. Winding wheel; 404. Cutting wire; 405. First telescopic rod; 406. Fixing seat; 407. Guide tube; 408. Adjusting device; 4031. Winding base; 4032. Wire fixing groove; 4033. Return spring; 4034. Rotating seat; 4061. Connecting seat; 4062. Fixing ring; 4063. Rotating frame; 4064. Guide wheel; 4071. Protective outer tube; 40 72. Heating coil; 4073. Arc-shaped guide groove; 4074. Protective inner tube; 40741. Protective tube; 40742. Upper refractive plate; 40743. Lower refractive plate; 40744. Through threaded sleeve; 40745. Outlet hole; 4081. Fixing plate; 4082. Adjusting motor; 4083. Rotating base; 4084. Brake bar; 4085. Spring; 4086. Brake ring; 4087. Second telescopic rod; 201. Fixed bracket; 202. Lower forward roller; 203. Lower reverse roller; 204. Upper forward roller; 205. Upper reverse roller. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] For the first embodiment, please refer to... Figures 1-2 The present invention provides a technical solution: a polyurethane board production device, including an equipment support 1, a conveyor roller 2 fixedly connected to the top of the equipment support 1, a fixed frame 3 fixedly connected to the top of the conveyor roller 2, an upper cutting device 4 fixedly connected to the side of the fixed frame 3, and a lower cutting device 5 fixedly connected to the bottom of the conveyor roller 2. The upper cutting device 4 includes a fixed base plate 401, a drive motor 402 fixedly connected to the bottom of the fixed base plate 401, a winding wheel 403 fixedly connected to the drive shaft of the drive motor 402, a cutting wire 404 sleeved and fixedly connected to the side of the winding wheel 403, a fixed end of a first telescopic rod 405 fixedly connected to the bottom of the fixed base plate 401, a fixed seat 406 fixedly connected to the movable end of the first telescopic rod 405, a guide tube 407 sleeved and fixedly connected to the bottom of the fixed seat 406, and an adjustment device 408 fixedly connected to the side of the fixed base plate 401. The side of the adjustment device 408 is fixedly connected to the side of the fixed frame 3.

[0020] The sheet material is introduced and moved and fixed by the conveyor roller 2. The conveyor roller 2 drives the sheet material to move. The first telescopic rod 405 is activated. The movement of the first telescopic rod 405 drives the fixed seat 406 to move. The movement of the fixed seat 406 drives the guide tube 407 to move. The drive motor 402 is activated. The drive motor 402 drives the winding wheel 403 to rotate. The rotation of the winding wheel 403 drives the cutting wire 404 to move. The cutting wire 404 moves back and forth between the guide tube 407 and the lower cutting device 5, thereby cutting the sheet material into a specific shape. The cutting within a certain range is achieved through the cooperation between the first telescopic rod 405 and the adjustment device 408. Cutting at different angles and positions is achieved through the cooperation of the lower cutting device 5. At the same time, the linkage adjustment between the lower cutting device 5 and the guide tube 407 makes it easy to pull the cutting wire 404 to a tilted state, which facilitates the processing of sheet materials of specific shapes. Meanwhile, the conveyor roller 2 wraps and fixes the sheet material to avoid vibration during cutting, thereby improving the cutting accuracy.

[0021] For the second embodiment, please refer to... Figures 1-4 Based on the first embodiment, the present invention provides a technical solution: the winding wheel 403 includes a winding base 4031, a wire fixing groove 4032 is provided on the side of the winding base 4031, a loop spring 4033 is fixedly connected to the inner wall of the winding base 4031, a rotating seat 4034 is fixedly connected to the end of the loop spring 4033 away from the winding base 4031, the bottom of the rotating seat 4034 is fixedly connected to the drive shaft of the drive motor 402, the bottom of the winding base 4031 is rotatably connected to the top of the fixed base plate 401, and the cutting wire 404 is disposed on the inner wall of the wire fixing groove 4032 and fixedly connected to the side of the winding base 4031.

[0022] The fixed base 406 includes a connecting base 4061, a fixing ring 4062 fixedly connected to the side of the connecting base 4061, a rotating frame 4063 rotatably connected to the top of the connecting base 4061 via a rotating shaft, a guide wheel 4064 rotatably connected to the inner wall of the rotating frame 4063, a side of the connecting base 4061 fixedly connected to the movable end of the first telescopic rod 405, and a guide tube 407 disposed on the inner wall of the fixing ring 4062 and fixedly connected to the fixing ring 4062.

[0023] The drive shaft of the drive motor 402 rotates, causing the rotating seat 4034 to rotate. The rotation of the rotating seat 4034 causes the retaining spring 4033 to deform. The deformation of the retaining spring 4033 generates elastic force, which drives the winding base 4031 to rotate. The rotation of the winding base 4031 drives the wire fixing groove 4032 to rotate. The rotation of the wire fixing groove 4032 drives the cutting wire 404 to wind and coil. The cutting wire 404 is between the side of the winding base 4031 and the lower cutting device 5, under the elastic force of the retaining spring 4033. Under the action of the force, the cutting wire 404 is prevented from breaking due to direct hard connection, and the winding base 4031 is elastically rotated on the side of the rotating seat 4034 by the setting of the return spring 4033, which facilitates the absorption of the vibration when the cutting wire 404 is tightened and loosened, maintains the stability of the cutting wire 404, and improves the cutting accuracy. The cutting wire 404 is guided by the guide wheel 4064 and descends along the inside of the fixed ring 4062. The rotation setting of the rotating frame 4063 facilitates the replacement of the components inside the fixed ring 4062.

[0024] Third embodiment, please refer to Figures 1-6 Based on the second embodiment, the present invention provides a technical solution: the guide tube 407 includes a protective outer tube 4071, a heating coil 4072 is sleeved and fixedly connected to the side of the protective outer tube 4071, an arc-shaped guide groove 4073 is opened at the bottom of the protective outer tube 4071, a protective inner tube 4074 is threadedly connected to the inner wall of the protective outer tube 4071, and the side of the protective outer tube 4071 is disposed on the inner wall of the fixing ring 4062 and fixedly connected to the inner wall of the fixing ring 4062.

[0025] The inner protective tube 4074 includes a protective tube 40741. An upper refractive plate 40742 is fixedly connected to the inner wall side of the protective tube 40741. A lower refractive plate 40743 is fixedly connected to the inner wall of the protective tube 40741 below the upper refractive plate 40742. A through threaded sleeve 40744 is fixedly connected to the top of the protective tube 40741. A wire outlet hole 40745 is opened on the side of the through threaded sleeve 40744. The through threaded sleeve 40744 is disposed inside the outer protective tube 4071 and is threadedly connected to the side of the outer protective tube 4071. A cutting line 404 penetrates the inner wall of the protective tube 40741 and is slidably connected to the inner wall of the protective tube 40741.

[0026] The cutting wire 404 passes through the interior of the protective outer tube 4071 and descends through the interior of the protective tube 40741. As it descends, the cutting wire 404 is refracted by the upper refractive plate 40742 and the lower refractive plate 40743, facilitating scraping and cleaning of its surface. When the cutting wire 404 passes through the interior of the protective outer tube 4071, the heating coil 4072 is activated, heating the cutting wire 404 and thus cutting the sheet material. During cutting, the increased temperature increases the cutting speed, and simultaneously melts the edges of the sheet material, forming an automatic edge banding for easier use. The arc-shaped guide groove 4073 facilitates the use of the lower cutting device 5 for oblique pulling at different angles. The cutting process allows for the cutting of plates of specific shapes. The arc-shaped guide groove 4073 reduces friction when the cutting line 404 is pulled at an angle, facilitating smooth cutting. The plate on the surface of the cutting line 404 is scraped and cleaned when refracted by the upper refractive plate 40742 and the lower refractive plate 40743, ensuring cutting quality. When the interior of the protective outer tube 4071 is replaced, the through thread sleeve 40744 is rotated, which helps the interior of the protective outer tube 4071 to come out, thus pulling the protective tube 40741 out. The outlet hole 40745 facilitates the sliding separation of the cutting line 404, making it easy to quickly replace the protective tube 40741.

[0027] For the fourth embodiment, please refer to [link / reference]. Figures 1-8 Based on the third embodiment, the present invention provides a technical solution: the adjustment device 408 includes a fixed plate 4081, an adjustment motor 4082 is fixedly connected to the top of the fixed plate 4081, a rotating base 4083 is fixedly connected to the drive shaft of the adjustment motor 4082, a brake strip 4084 is rotatably connected to the bottom of the rotating base 4083 via a rotating shaft, a spring piece 4085 is fixedly connected to the side of the brake strip 4084, a brake ring 4086 is sleeved on and rotatably connected to the side of the rotating base 4083, the movable end of a second telescopic rod 4087 is fixedly connected to the side of the brake ring 4086 via a bracket, the fixed end of the second telescopic rod 4087 is fixedly connected to the top of the fixed frame 3, and the side of the fixed plate 4081 is fixedly connected to the side of the fixed base plate 401.

[0028] The conveyor roller 2 includes a fixed bracket 201. A lower forward roller 202 is rotatably connected to the inner wall side of the fixed bracket 201. A lower reverse roller 203 is rotatably connected to the inner wall of the fixed bracket 201 away from the lower forward roller 202. An upper forward roller 204 is rotatably connected to the inner wall of the fixed bracket 201 above the lower forward roller 202. An upper reverse roller 205 is rotatably connected to the inner wall of the fixed bracket 201 away from the upper forward roller 204. The bottom of the fixed bracket 201 is fixedly connected to the top of the equipment bracket 1. The top of the fixed bracket 201 is fixedly connected to the bottom of the fixed frame 3.

[0029] When adjusting the angle, the adjustment motor 4082 is started. The drive shaft of the adjustment motor 4082 rotates, causing the rotating base 4083 to rotate. The rotation of the rotating base 4083 causes the brake strip 4084 to rotate. Under the action of the brake ring 4086, the brake strip 4084 rotates relative to the rotating base 4083. The rotation of the rotating base 4083 causes the spring 4085 to deform. The deformation of the spring 4085 generates elastic force, causing the brake strip 4084 to rotate back, thereby causing the brake strip 4084 to engage with the brake ring 4086, thus fixing the relative position of the fixing plate 4081 and the brake ring 4086, maintaining a fixed state when cutting at the same angle. When releasing, the second... The telescopic rod 4087 drives the brake ring 4086 to descend. The brake ring 4086 descends and disengages from the side of the brake strip 4084, allowing the fixed plate 4081 and the fixed frame 3 to rotate freely. The lower forward roller 202 and the lower reverse roller 203 are designed to allow the plate to rotate inside the fixed bracket 201 by changing different speeds and rotation directions, thus facilitating the cutting of plates of different shapes. The upper forward roller 204 and the upper reverse roller 205, in conjunction with the lower forward roller 202 and the lower reverse roller 203, fix the plate inside the fixed bracket 201, thereby facilitating stable cutting and preventing the plate from moving up and down during the cutting process, which would affect the cutting quality.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A polyurethane board production apparatus, characterized in that: The equipment includes a support frame (1), a conveyor roller (2) is fixedly connected to the top of the support frame (1), a fixed frame (3) is fixedly connected to the top of the conveyor roller (2), an upper cutting device (4) is fixedly connected to the side of the fixed frame (3), and a lower cutting device (5) is fixedly connected to the bottom of the conveyor roller (2). The upper cutting device (4) includes a fixed base plate (401), a drive motor (402) is fixedly connected to the bottom of the fixed base plate (401), a winding wheel (403) is fixedly connected to the drive shaft of the drive motor (402), a cutting wire (404) is sleeved and fixedly connected to the side of the winding wheel (403), the fixed end of the first telescopic rod (405) is fixedly connected to the bottom of the fixed base plate (401), a fixed seat (406) is fixedly connected to the movable end of the first telescopic rod (405), a guide tube (407) is sleeved and fixedly connected to the bottom of the fixed seat (406), an adjustment device (408) is fixedly connected to the side of the fixed base plate (401), and the side of the adjustment device (408) is fixedly connected to the side of the fixed frame (3).

2. The polyurethane board production apparatus according to claim 1, characterized in that: The winding wheel (403) includes a winding base (4031), a wire fixing groove (4032) is provided on the side of the winding base (4031), a loop spring (4033) is fixedly connected to the inner wall of the winding base (4031), a rotating seat (4034) is fixedly connected to the end of the loop spring (4033) away from the winding base (4031), the bottom of the rotating seat (4034) is fixedly connected to the drive shaft of the drive motor (402), the bottom of the winding base (4031) is rotatably connected to the top of the fixed base plate (401), and the cutting wire (404) is set on the inner wall of the wire fixing groove (4032) and fixedly connected to the side of the winding base (4031).

3. The polyurethane sheet production apparatus according to claim 1, characterized in that: The fixed base (406) includes a connecting base (4061), a fixed ring (4062) is fixedly connected to the side of the connecting base (4061), a rotating frame (4063) is rotatably connected to the top of the connecting base (4061) via a rotating shaft, a guide wheel (4064) is rotatably connected to the inner wall of the rotating frame (4063), the side of the connecting base (4061) is fixedly connected to the movable end of the first telescopic rod (405), and the guide tube (407) is disposed on the inner wall of the fixed ring (4062) and fixedly connected to the fixed ring (4062).

4. The polyurethane board production apparatus according to claim 3, characterized in that: The guide tube (407) includes a protective outer tube (4071), a heating coil (4072) is sleeved and fixedly connected to the side of the protective outer tube (4071), an arc-shaped guide groove (4073) is opened at the bottom of the protective outer tube (4071), a protective inner tube (4074) is threaded to the inner wall of the protective outer tube (4071), and the side of the protective outer tube (4071) is set on the inner wall of the fixing ring (4062) and fixedly connected to the inner wall of the fixing ring (4062).

5. The polyurethane board production apparatus according to claim 4, characterized in that: The inner protective tube (4074) includes a protective tube (40741). An upper refractive plate (40742) is fixedly connected to the inner wall side of the protective tube (40741). A lower refractive plate (40743) is fixedly connected to the inner wall of the protective tube (40741) below the upper refractive plate (40742). A through thread sleeve (40744) is fixedly connected to the top of the protective tube (40741). A wire outlet hole (40745) is opened on the side of the through thread sleeve (40744). The through thread sleeve (40744) is disposed inside the outer protective tube (4071) and threadedly connected to the side of the outer protective tube (4071). The cutting line (404) penetrates the inner wall of the protective tube (40741) and is slidably connected to the inner wall of the protective tube (40741).

6. The polyurethane sheet production apparatus according to claim 1, characterized in that: The adjustment device (408) includes a fixed plate (4081), an adjustment motor (4082) is fixedly connected to the top of the fixed plate (4081), a rotating base (4083) is fixedly connected to the drive shaft of the adjustment motor (4082), a brake strip (4084) is rotatably connected to the bottom of the rotating base (4083) via a rotating shaft, a spring piece (4085) is fixedly connected to the side of the brake strip (4084), a brake ring (4086) is sleeved on and rotatably connected to the side of the rotating base (4083), and the movable end of the second telescopic rod (4087) is fixedly connected to the side of the brake ring (4086) via a bracket.

7. A polyurethane sheet production apparatus according to claim 6, characterized in that: The fixed end of the second telescopic rod (4087) is fixedly connected to the top of the fixed frame (3), and the side of the fixed plate (4081) is fixedly connected to the side of the fixed base plate (401).

8. The polyurethane board production apparatus according to claim 1, characterized in that: The conveying roller (2) includes a fixed bracket (201), a lower forward roller (202) is rotatably connected to the inner wall side of the fixed bracket (201), a lower reverse roller (203) is rotatably connected to the inner wall of the fixed bracket (201) away from the lower forward roller (202), an upper forward roller (204) is rotatably connected to the inner wall of the fixed bracket (201) above the lower forward roller (202), and an upper reverse roller (205) is rotatably connected to the inner wall of the fixed bracket (201) away from the upper forward roller (204).

9. A polyurethane sheet production apparatus according to claim 8, characterized in that: The bottom of the fixed bracket (201) is fixedly connected to the top of the equipment bracket (1), and the top of the fixed bracket (201) is fixedly connected to the bottom of the fixed frame (3).

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