Efficient edge milling machine for extruded sheet

Abstract

The utility model relates to the technical field of extruded board edge milling, and disclose a kind of high-efficiency extruded board edge milling machine, including rack, the both sides of the rack are fixedly connected with side bracket, the top of side bracket is fixedly connected with ball screw linear module, two ball screw linear module movers are equipped with milling unit, the bottom inner wall of the rack is fixedly connected with two symmetrical L-shaped plates, the side of L-shaped plate is fixedly connected with electric push rod, the piston end of electric push rod is fixedly connected with connecting plate through the side of L-shaped plate, the same side of connecting plate is fixedly connected with slide bar, the one end of slide bar is fixedly connected with cylindrical frame through the side of L-shaped plate, the utility model is equipped with cylindrical frame and the brush in its inside, can clean forming milling cutter in time after each processing, keep forming milling cutter sharp and clean, not only prolong the tool life, reduce the downtime maintenance time, also improve the precision of processing.

Description

Technical Field

[0001] This utility model relates to the field of extruded polystyrene (XPS) board edge milling technology, and more specifically to an efficient XPS board edge milling machine. Background Technology

[0002] Extruded polystyrene (XPS) boards are widely used in building exterior wall insulation, underfloor heating installation, and other fields as an excellent thermal insulation material. In actual construction, in order to enhance the bonding strength between boards and improve the sealing performance, it is often necessary to mill the edges of XPS boards into specific shapes, such as right-angled edges, trapezoidal openings, and rounded edges.

[0003] Currently, extruded polystyrene board edge milling machines on the market typically consist of a frame, a conveying or positioning mechanism, and a milling mechanism. Their basic workflow involves using a high-speed rotating forming milling cutter to cut and shape the edges of the extruded polystyrene board.

[0004] However, because the soft extruded polystyrene board melts easily when heated, it produces sticky debris that adheres to the cutting edge of the high-speed rotating forming milling cutter. The molten debris adhering to the milling cutter will continue to accumulate, resulting in increased cutting resistance. This will not only cause deviations in the milled groove size and make the surface rough and uneven, but in severe cases, it may even tear and damage the edge of the extruded polystyrene board, resulting in a higher scrap rate. Operators must frequently stop the machine to manually clean the cutter, which seriously restricts the continuity and efficiency of production. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-efficiency extruded board milling machine to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a high-efficiency extruded polystyrene board milling machine, including a frame, side supports fixedly connected to both sides of the frame, ball screw linear modules fixedly connected to the top of the side supports, milling units provided on the movers of the two ball screw linear modules, two symmetrical L-shaped plates fixedly connected to the bottom inner wall of the frame, an electric push rod fixedly connected to one side of the L-shaped plate, a connecting plate fixedly connected to the piston end of the electric push rod passing through the side of the L-shaped plate, a slide rod fixedly connected to the same side of the connecting plate, a cylindrical frame fixedly connected to one end of the slide rod passing through the side of the L-shaped plate, a brush provided on the inner circumference of the cylindrical frame, and a positioning assembly for positioning and clamping unprocessed extruded polystyrene boards on the frame.

[0007] As a further embodiment of this utility model, the positioning component includes an end seat fixedly connected to the lower surface of the side bracket. A through hole is provided on the frame. A bidirectional lead screw is rotatably connected between the two end seats and located within the through hole via a bearing seat. Two slides are threadedly connected to the bidirectional lead screw via a threaded cylinder. Each of the two slides is fixedly connected to a clamp plate that fits against the two edges of the bottom of the unprocessed extruded board. A second drive motor for rotating the bidirectional lead screw axially is fixedly connected to one side of one of the end seats.

[0008] As a further embodiment of this utility model, two guide rods are fixedly connected to both sides of the frame, and the two guide rods on the same side pass through the corresponding slide and are slidably connected to the slide through the sliding sleeve.

[0009] As a further embodiment of this utility model, the milling unit includes an L-shaped frame fixedly connected to the mover of the ball screw linear module, a forming milling cutter for processing extruded board is rotatably connected to one side of the L-shaped frame, and a drive motor for rotating the forming milling cutter at high speed is fixedly connected to one side of the L-shaped frame.

[0010] As a further embodiment of this utility model, a cover plate is fixedly connected to one side of the moving part of the ball screw linear module, and fixed seats are fixedly connected to both sides of the frame. A slotted photoelectric sensor that cooperates with the cover plate is fixedly connected to the upper surface of the fixed seat. The slotted photoelectric sensor is electrically connected to both the ball screw linear module and the electric push rod.

[0011] As a further embodiment of this utility model, the slotted photoelectric sensor is located at the axis of the cylindrical frame, and the inner diameter of the cylindrical frame is larger than the diameter of the forming milling cutter.

[0012] As a further embodiment of this utility model, when the slotted photoelectric sensor interacts with the shield, the cylindrical frame coincides with the axis of the forming milling cutter.

[0013] As a further embodiment of this utility model, a hydraulic cylinder is fixedly connected to the top outer wall of the frame, and the bottom end of the piston rod of the hydraulic cylinder passes through the side wall of the frame and is fixedly connected to a pressure plate for pressing the extruded board.

[0014] The technical effects and advantages of this utility model are as follows: 1. This utility model, through its cylindrical frame and internal brush, can clean the forming milling cutter promptly after each machining operation, keeping the forming milling cutter sharp and clean. This not only extends the tool life and reduces downtime for maintenance, but also improves machining accuracy.

[0015] 2. This utility model features fully mechanized operation from positioning and processing to cleaning, which greatly reduces the time for manual intervention. It is particularly suitable for large-scale, continuous production, significantly improves processing efficiency, and reduces the chances of operators coming into contact with moving parts and forming milling cutters, thus improving equipment safety.

[0016] 3. This utility model achieves rapid and precise automatic clamping and loosening of extruded boards by cooperating with a positioning assembly consisting of a drive motor, a two-way lead screw, and a clamping plate, and a pressure plate driven by a hydraulic cylinder. The resulting multi-dimensional clamping method effectively prevents the board from shifting or vibrating during processing, thereby ensuring the stable processing quality of the trapezoidal edge shape. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a structural diagram of the cylindrical frame of this utility model.

[0019] Figure 3 This is a structural diagram of the milling unit of this utility model.

[0020] Figure 4 This is a structural diagram of the side support of this utility model.

[0021] Figure 5 This is a bottom view of the side bracket of this utility model.

[0022] The attached diagram is labeled as follows: 1. Frame; 2. Side support; 3. Ball screw linear module; 4. Milling unit; 401. L-shaped frame; 402. Drive motor one; 403. Forming milling cutter; 5. L-shaped plate; 6. Hydraulic cylinder; 7. Pressure plate; 8. Electric push rod; 9. Connecting plate; 10. Slide rod; 11. Cylindrical frame; 12. Brush; 13. Fixed seat; 14. Slotted photoelectric sensor; 15. Cover plate; 16. End seat; 17. Bidirectional screw; 18. Drive motor two; 19. Slide carriage; 20. Clamping plate; 21. Guide rod. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Reference Figures 1-5This utility model provides a high-efficiency extruded polystyrene board milling machine, including a frame 1. Side supports 2 are bolted to both sides of the frame 1. A ball screw linear module 3 is bolted to the top of the side supports 2. Milling units 4 are provided on the movers of the two ball screw linear modules 3. Two symmetrical L-shaped plates 5 are bolted to the inner wall of the bottom of the frame 1. An electric push rod 8 is bolted to one side of the L-shaped plate 5. A connecting plate 9 is bolted to the piston end of the electric push rod 8 through one side of the L-shaped plate 5. A slide rod 10 is bolted to the same side of the connecting plate 9. A cylindrical frame 11 is bolted to one end of the slide rod 10 through one side of the L-shaped plate 5. A brush 12 is provided on the inner circumference of the cylindrical frame 11. A positioning component for positioning and clamping the unprocessed extruded polystyrene board is provided on the frame 1.

[0025] It should be noted that the ball screw linear module 3 achieves precise linear motion through the coordinated operation of various components: the slide table is the moving part, the ball screw and guide rail form the transmission core, the motor and coupling provide power, and the aluminum alloy profile and support base ensure structural stability. Furthermore, by cooperating with magnetic switches, proximity switches, or photoelectric switches, the displacement of the slide table can be precisely controlled. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0026] It should be noted that the electric push rod 8 is existing technology and can be used with magnetic switches, proximity switches or photoelectric switches to achieve precise control of the push rod's extension and retraction displacement. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0027] The milling unit 4 includes an L-shaped frame 401 that is fixedly connected to the mover of the ball screw linear module 3 by bolts. A forming milling cutter 403 for processing extruded board is rotatably connected to one side of the L-shaped frame 401. A drive motor 402 that causes the forming milling cutter 403 to rotate at high speed is fixedly connected to one side of the L-shaped frame 401 by bolts.

[0028] During operation, the operator places the extruded polystyrene board to be processed on the conveyor worktable of the frame 1 and initially positions it. After clamping, the ball screw linear module 3 is started, driving its mover and the milling unit 4 installed on it to make precise transverse feed movements along the side support 2. The drive motor 402 on the milling unit 4 rotates at high speed, driving the forming milling cutter 403 to rotate. When the forming milling cutter 403 contacts the edge of the extruded polystyrene board, it can be milled to form a trapezoidal opening.

[0029] The piston rod of the electric push rod 8 retracts, causing the connecting plate 9, slide rod 10 and cylindrical frame 11 to move towards the forming cutter 403, so that the forming cutter 403 accurately enters the interior of the cylindrical frame 11. The brush 12 on the inner wall of the cylindrical frame 11 will closely contact and brush the rotating cutter, removing the debris adhering to it.

[0030] The cylindrical frame 11 and the brush 12 inside it can clean the forming milling cutter 403 in time after each processing, keeping the forming milling cutter 403 sharp and clean, which not only extends the tool life, reduces downtime maintenance time, but also increases the processing accuracy.

[0031] In this utility model, the positioning component includes an end seat 16 fixedly connected to the lower surface of the side bracket 2 by bolts. A through hole is provided on the frame 1. A bidirectional lead screw 17 is rotatably connected between the two end seats 16 and located in the through hole through a bearing seat. Two slides 19 are threadedly connected to the bidirectional lead screw 17 through a threaded cylinder. Each of the two slides 19 is fixedly connected to a clamp 20 that fits against the two edges of the bottom of the unprocessed extruded board by bolts. A second drive motor 18 that causes the bidirectional lead screw 17 to rotate axially is fixedly connected to one side of one of the end seats 16 by bolts.

[0032] In this application, the inner wall of the threaded cylinder of the slide 19 is provided with an annular groove, and a nylon 66 damping ring with a Shore hardness of 85A is embedded in the groove. The continuous axial clamping force generated by its elastic deformation forms a helical angle interference fit with the surface of the double-acting screw 17 at 15°-20°. When the threaded pair is subjected to axial vibration load, the nylon insert can generate a maximum elastic compression of 0.3mm, which increases the friction coefficient between the thread contact surfaces from 0.15 to 0.68 (tested according to ASTM D1894 standard), effectively suppressing the loosening displacement caused by thread springback.

[0033] It should be noted that: Drive motor 402 and drive motor 18 are existing technologies. They are servo motors with encoders, and the number of rotations and rotation angle of the motor output shaft are controllable and highly accurate. Those skilled in the art can set them according to actual needs, which will not be elaborated here.

[0034] When the drive motor 18 is working, it drives the bidirectional lead screw 17 to rotate. Due to the opposite threads at both ends of the bidirectional lead screw 17, the two slides 19 move synchronously towards each other under the guidance of the guide rod 21. The two clamping plates 20 on the slides 19 move accordingly, lifting and clamping the two lateral edges of the extruded board from below, thus completing the precise positioning of the board on the horizontal plane.

[0035] Furthermore, a hydraulic cylinder 6 is bolted to the top outer wall of the frame 1, and the bottom end of the piston rod of the hydraulic cylinder 6 passes through the side wall of the frame 1 and is bolted to a pressure plate 7 for pressing the extruded board.

[0036] When the hydraulic cylinder 6 is activated, its piston rod pushes the pressure plate 7 downward, pressing the extruded board vertically from above.

[0037] The positioning assembly, consisting of drive motor 18, bidirectional lead screw 17, and clamping plate 20, works in conjunction with the pressure plate 7 driven by hydraulic cylinder 6 to achieve rapid and precise automatic clamping and loosening of extruded board. The resulting multi-dimensional clamping method effectively prevents the board from shifting or vibrating during processing, thereby ensuring the stable processing quality of the trapezoidal edge shape.

[0038] It should be noted that: hydraulic cylinder 6 is an actuator in the hydraulic system. It achieves the telescopic function by cooperating with the hydraulic system. It can also achieve precise control of the telescopic displacement of the hydraulic cylinder piston rod by cooperating with magnetic switches, proximity switches or photoelectric switches. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0039] In this utility model, two guide rods 21 are fixedly connected to both sides of the frame 1 by bolts. The two guide rods 21 on the same side pass through the corresponding slide 19 and are slidably connected to the slide 19 through the sliding sleeve.

[0040] In this utility model, a cover plate 15 is fixedly connected to one side of the moving part of the ball screw linear module 3 by bolts, and a fixed seat 13 is fixedly connected to both sides of the frame 1 by bolts. A slotted photoelectric sensor 14 (the model of the slotted photoelectric sensor 14 is E3S-GS15N inductive switch) is fixedly connected to the upper surface of the fixed seat 13 by bolts to cooperate with the cover plate 15. The slotted photoelectric sensor 14 is electrically connected to the ball screw linear module 3 and the electric push rod 8.

[0041] While the milling unit 4 moves to perform processing, the masking plate 15 linked with it also moves synchronously. When the milling operation is completed, the ball screw linear module 3 drives the milling unit 4 to return to the initial position, and the masking plate 15 will enter the U-shaped groove of the slotted photoelectric sensor 14 on the fixed seat 13. The slotted photoelectric sensor 14 detects the masking plate 15.

[0042] Furthermore, the slotted photoelectric sensor 14 is located on the axis of the cylindrical frame 11, and the inner diameter of the cylindrical frame 11 is larger than the diameter of the forming milling cutter 403.

[0043] Furthermore, when the slotted photoelectric sensor 14 and the cover plate 15 work together, the cylindrical frame 11 and the forming milling cutter 403 have their axes aligned.

[0044] After cleaning, the electric push rod 8 retracts, driving the cylindrical frame 11 back to its original position. The hydraulic cylinder 6 lifts the pressure plate 7, and the drive motor 18 of the positioning component reverses, causing the clamping plate 20 to loosen the board. The operator can then remove the processed and clean extruded board, and the entire work cycle ends.

[0045] The fully mechanized operation from positioning and processing to cleaning significantly reduces the time for manual intervention, making it particularly suitable for large-scale, continuous production. It greatly improves processing efficiency and reduces the chances of operators coming into contact with moving parts and the forming milling cutter 403, thus improving equipment safety.

[0046] The use of this utility model involves the following steps: S1: During operation, the operator places the extruded board to be processed on the conveying worktable of the frame 1 and initially positions it. Then, the drive motor 18 works, driving the double-acting screw 17 to rotate. Due to the opposite threads at both ends of the double-acting screw 17, the two slides 19 move synchronously towards each other under the guidance of the guide rod 21. The two clamping plates 20 on the slides 19 move accordingly, lifting and clamping the two side edges of the extruded board from below, completing the precise positioning of the board on the horizontal plane. Then, the hydraulic cylinder 6 is activated, and its piston rod pushes the pressure plate 7 downward to vertically press the extruded board from above. S2: After clamping is completed, the ball screw linear module 3 starts, driving its mover and the milling unit 4 installed on it to make precise transverse feed movements along the side bracket 2. The drive motor 402 on the milling unit 4 rotates at high speed, driving the forming milling cutter 403 to rotate. When the forming milling cutter 403 contacts the edge of the extruded board, it can be milled to produce a trapezoidal opening. S3: While the milling unit 4 moves to perform processing, the masking plate 15 linked with it also moves synchronously. When the milling operation is completed, the ball screw linear module 3 drives the milling unit 4 to return to the initial position. The masking plate 15 will then enter the U-shaped groove of the slotted photoelectric sensor 14 on the fixed seat 13. The slotted photoelectric sensor 14 detects the masking plate 15. The piston rod of the electric push rod 8 retracts, driving the connecting plate 9, the slide rod 10 and the cylindrical frame 11 to move towards the forming milling cutter 403, so that the forming milling cutter 403 accurately enters the interior of the cylindrical frame 11. The brush 12 on the inner wall of the cylindrical frame 11 will closely contact and brush the rotating milling cutter, removing the debris adhering to it. S4: After cleaning, the electric push rod 8 retracts, driving the cylindrical frame 11 back to its original position. The hydraulic cylinder 6 lifts the pressure plate 7, and the drive motor 18 of the positioning component reverses, causing the clamping plate 20 to loosen the board. The operator can then remove the processed and clean extruded board, and the entire work cycle ends.

[0047] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs. The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A high-efficiency extruded polystyrene board edge milling machine, comprising a frame (1), characterized in that: Both sides of the frame (1) are fixedly connected to side brackets (2), and the top of the side brackets (2) is fixedly connected to a ball screw linear module (3). The two ball screw linear modules (3) are each equipped with a milling unit (4). Two symmetrical L-shaped plates (5) are fixedly connected to the bottom inner wall of the frame (1). An electric push rod (8) is fixedly connected to one side of the L-shaped plate (5). A connecting plate (9) is fixedly connected to the piston end of the electric push rod (8) through the side of the L-shaped plate (5). A slide rod (10) is fixedly connected to the same side of the connecting plate (9). A cylindrical frame (11) is fixedly connected to one end of the slide rod (10) through the side of the L-shaped plate (5). A brush (12) is provided on the inner circumference of the cylindrical frame (11). A positioning component for positioning and clamping unprocessed extruded boards is provided on the frame (1).

2. The high-efficiency extruded board milling machine according to claim 1, characterized in that: The positioning assembly includes an end seat (16) fixedly connected to the lower surface of the side bracket (2). The frame (1) has a through hole. A bidirectional lead screw (17) is rotatably connected between the two end seats (16) and located in the through hole through a bearing seat. Two slides (19) are threadedly connected to the bidirectional lead screw (17) through a threaded cylinder. Each of the two slides (19) is fixedly connected to a clamp (20) that fits against the two edges of the bottom of the unprocessed extruded board. A second drive motor (18) that causes the bidirectional lead screw (17) to rotate axially is fixedly connected to one side of one of the end seats (16).

3. The high-efficiency extruded board edge milling machine according to claim 1, characterized in that: Two guide rods (21) are fixedly connected to both sides of the frame (1). The two guide rods (21) on the same side pass through the corresponding slide (19) and are slidably connected to the slide (19) through the sliding sleeve.

4. The high-efficiency extruded board edge milling machine according to claim 1, characterized in that: The milling unit (4) includes an L-shaped frame (401) fixedly connected to the mover of the ball screw linear module (3). A forming milling cutter (403) for processing extruded board is rotatably connected to one side of the L-shaped frame (401). A drive motor (402) for rotating the forming milling cutter (403) at high speed is fixedly connected to one side of the L-shaped frame (401).

5. The high-efficiency extruded board edge milling machine according to claim 1, characterized in that: A cover plate (15) is fixedly connected to one side of the moving part of the ball screw linear module (3), and a fixed seat (13) is fixedly connected to both sides of the frame (1). A slotted photoelectric sensor (14) that works with the cover plate (15) is fixedly connected to the upper surface of the fixed seat (13). The slotted photoelectric sensor (14) is electrically connected to the ball screw linear module (3) and the electric push rod (8).

6. The high-efficiency extruded board milling machine according to claim 5, characterized in that: The slotted photoelectric sensor (14) is located on the axis of the cylindrical frame (11), and the inner diameter of the cylindrical frame (11) is larger than the diameter of the forming milling cutter (403).

7. A high-efficiency extruded board edge milling machine according to claim 6, characterized in that: When the slotted photoelectric sensor (14) and the cover plate (15) work together, the cylindrical frame (11) and the forming milling cutter (403) axis coincide.

8. The high-efficiency extruded board milling machine according to claim 2, characterized in that: A hydraulic cylinder (6) is fixedly connected to the top outer wall of the frame (1). The bottom end of the piston rod of the hydraulic cylinder (6) passes through the side wall of the frame (1) and is fixedly connected to a pressure plate (7) for pressing the extruded board.

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