Edge grinding device for SMC (Sheet Molding Compound) insulating profile

Abstract

The utility model discloses an edge grinding device for an SMC insulating profile, and mainly relates to the field of plastic finishing. Comprising belt type conveying mechanisms which are symmetrically arranged up and down, each belt type conveying mechanism comprises clamping belts, the adjacent belt faces of the two clamping belts are horizontal and opposite in rotation direction, and grinding mechanisms are symmetrically arranged on the two sides of the two belt type conveying mechanisms; a plurality of first wheel sets and second wheel sets are rotatably mounted on the inner side, close to the belt type conveying mechanism, of the grinding mechanism, the first wheel sets and the second wheel sets are alternately arranged, each first wheel set comprises two first friction wheels which are vertically arranged in parallel, and each second wheel set comprises two second friction wheels which are vertically arranged; and the first friction wheel and the second friction wheel rotate in opposite directions. The unhairing and trimming device has the beneficial effect that the unhairing and trimming efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic finishing, specifically an edge grinding device for SMC insulating profiles. Background Technology

[0002] Sheet molding compound (SMC) with rectangular cross-sections is widely used in various fields due to its excellent insulation properties, mechanical strength, and corrosion resistance, especially in the electrical field. It is commonly used in the manufacture of cable supports and busbar supports, as well as the processing of insulators and insulating rods. In its traditional processing, the SMC material is laid in a mold, hot-pressed, cured, and then demolded. Afterward, it needs to be trimmed and deburred to prevent electric field concentration caused by burrs or uneven edges, improve appearance quality, reduce dust and impurity adhesion, and avoid localized corrosion caused by rough edges.

[0003] Deburring is usually necessary for SMC insulation boards. Current deburring processes are primarily manual, involving workers using files, sandpaper, or handheld electric grinding tools to manually polish the workpiece. This method is labor-intensive and produces inconsistent deburring results. Some large-scale advanced processing companies use mechanized deburring equipment, such as grinding wheels, which offers higher precision. However, because it involves processing four sides, repeated adjustments to positioning and feeding are required, making its processing efficiency slightly lower than manual operation. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device for SMC insulating profiles, which improves the efficiency and quality of deburring and trimming.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A grinding device for SMC insulating profiles includes symmetrically arranged belt conveyor mechanisms. Each belt conveyor mechanism includes a clamping belt. The adjacent belt surfaces of the two clamping belts are horizontal and rotate in opposite directions. Grinding mechanisms are symmetrically arranged on both sides of the two belt conveyor mechanisms. Several sets of first wheel groups and second wheel groups are rotatably installed on the inner side of the grinding mechanism near the belt conveyor mechanism. The first wheel groups and second wheel groups are alternately arranged. The first wheel group includes two first friction wheels arranged vertically side by side. The second wheel group includes two second friction wheels arranged vertically side by side. The first friction wheels and second friction wheels rotate in opposite directions.

[0007] The belt conveyor mechanism includes a housing, with pulleys rotatably mounted at both ends of the housing. The clamping belt is wound between the pulleys, and multiple support pulleys are arranged at equal intervals between the pulleys. A tensioning pulley is also provided inside the housing.

[0008] It also includes a frame, one end of which is fixed with an upright stand. The upper and lower parts of the stand are respectively provided with mounting platforms. A vertically extending guide rail and a double-ended lead screw are installed between the mounting platforms. A lifting motor for driving the rotation of the double-ended lead screw is installed on the top mounting platform. Two fixing blocks are slidably fitted on the guide rail. The fixing blocks are respectively fixed on two housings. The threads of the upper and lower parts of the double-ended lead screw are opposite. The upper and lower parts of the double-ended lead screw are respectively fitted with nuts. The two nuts are respectively fixed on the two fixing blocks.

[0009] The grinding mechanism includes a housing, which is fixed on the frame. The housing is a U-shaped shell structure with an opening opposite to the belt conveyor mechanism. A front plate and a rear plate are respectively provided at both ends of the housing. The front plate is used to install a first set of wheels located inside the housing, and the rear plate is used to install a second set of wheels located inside the housing. The axial directions of the first friction wheel and the second friction wheel extend in the same direction as the conveying direction of the clamping belt.

[0010] Two first friction wheels are rotatably mounted side by side on the front plate, and a first pulley is fixed on the axle of each first friction wheel. A first drive pulley based on motor drive is rotatably mounted on the front plate. The first drive pulley is located on the rear side of the two first pulleys away from the clamping belt. The first pulley and the first drive pulley are connected by belt drive.

[0011] Two second friction wheels are rotatably mounted side by side on the rear plate, and a second pulley is fixed on the axle of each second friction wheel. A second drive pulley driven by a motor is rotatably mounted on the rear plate. The second drive pulley is located on the rear side of the two second pulleys away from the clamping belt. The second pulley and the second drive pulley are connected by belt drive. The first drive pulley and the second drive pulley rotate in opposite directions.

[0012] A first tensioning pulley is rotatably mounted on the front plate, and the first tensioning pulley is disposed between the first pulley and the first drive pulley. A second tensioning pulley is rotatably mounted on the rear plate, and the second tensioning pulley is disposed between the second pulley and the second drive pulley.

[0013] The grinding mechanism has a front positioning mechanism and a rear positioning mechanism at both ends. The front positioning mechanism includes two front wheel frames symmetrically arranged on the left and right sides of the clamping belt. The front vertical wheel is axially upright. The front vertical wheels arranged in a curved pattern are rotatably mounted on the inner side of the front wheel frame. The front vertical wheels on both sides spread outward in the opposite direction of the conveying of the clamping belt. The minimum distance between the front vertical wheels on both sides near the grinding mechanism is adapted to the width of the workpiece. The rear positioning mechanism includes two rear wheel frames symmetrically arranged on the left and right sides of the clamping belt. The rear vertical wheels arranged in a linear pattern are rotatably mounted on the inner side of the rear wheel frame. The rear vertical wheels are upright. The minimum distance between the rear vertical wheels is adapted to the width of the workpiece.

[0014] Mounting rods can be fixed on the front wheel frame and the rear wheel frame respectively. A strip frame is fixed to the outer end of the mounting rod. The strip frame is horizontally set, and a horizontally extending strip hole is provided on the side of the strip frame near the outer shell. One to three screw heads that can pass through the strip hole are provided on both sides of the outer shell respectively. Locking nuts are fitted on the screw heads.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The machine can simultaneously grind all four sides in a single pass, and the multi-angle, alternating grinding in opposite directions ensures high-quality finishing of burrs. This high efficiency and quality facilitates assembly line operations. Attached Figure Description

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

[0018] Figure 2 This is a top view of the present invention.

[0019] Figure 3 This is a schematic diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the components of this utility model disassembled.

[0021] The labels shown in the attached diagram:

[0022] 1. Frame; 2. Housing; 3. Pulley; 4. Support wheel; 5. Clamping belt; 6. Stand; 7. Mounting platform; 8. Guide rail; 9. Double-ended lead screw; 10. Fixing block; 11. Outer shell; 12. Front plate; 13. Rear plate; 14. First friction wheel; 15. Second friction wheel; 16. First tension pulley; 17. First drive pulley; 18. Front wheel frame; 19. Front vertical wheel; 20. Rear wheel frame; 21. Rear vertical wheel; 22. Mounting rod; 23. Strip frame; 24. Strip hole; 25. Screw head; 26. First pulley; 27. Second pulley. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application. Example

[0024] This example is specifically designed for deburring long strip-shaped SMC workpieces with rectangular cross sections. Its main structure includes a frame 1 that is fixedly installed relative to the workshop floor. The bottom of the frame 1 can be fixed to the workbench or the bottom of the frame 1 can be placed directly on the workshop floor through a common support structure.

[0025] The frame 1 is centrally equipped with a symmetrically arranged belt conveyor mechanism. The belt conveyor mechanism includes a housing 2, with pulleys 3 rotatably mounted at both ends of the housing 2. Multiple support wheels 4 are arranged equidistantly between the pulleys 3. The bottom circumferential surface of the support wheels 4 is tangent to the bottom circumferential surface of the pulleys 3 at a horizontal plane. A clamping belt 5 is wound between the pulleys 3. A clamping motor is installed at one end of the housing 2. The clamping motor drives the pulley 3 at that end to drive the clamping belt 5 to rotate. The upper and lower clamping belts 5 rotate in opposite directions, thus enabling the clamping of the top and bottom surfaces of the workpiece and the directional conveying of the workpiece.

[0026] The housing 2 is also equipped with a tensioning wheel to increase the tension of the belt.

[0027] One end of the frame 1 is fixed with an upwardly erected upright frame 6. The upper and lower parts of the upright frame 6 are respectively provided with mounting platforms 7. A vertically extending guide rail 8 and a double-ended lead screw 9 are installed between the mounting platforms 7. A lifting motor for driving the rotation of the double-ended lead screw 9 is installed on the top mounting platform 7. Two fixing blocks 10 are slidably fitted on the guide rail 8. The fixing blocks 10 are respectively fixed on the two housings 2. The double-ended lead screw 9 has opposite threads. The upper and lower parts of the double-ended lead screw 9 are respectively fitted with nuts. The two nuts are respectively fixed on the two fixing blocks 10. The rotation of the lead screw can cause the two fixing blocks 10 to move in opposite directions, thereby causing the two belt conveyor mechanisms to separate vertically or move closer together, thereby adjusting the distance between the upper and lower clamping belts 5, thereby clamping or releasing the workpiece, which is convenient for maintenance and adjustment of the machine.

[0028] A grinding mechanism is symmetrically arranged on both sides of the middle of the belt conveyor mechanism. The grinding mechanism includes a housing 11, which is fixed to the frame 1. The housing 11 is a U-shaped shell structure with its opening facing the belt conveyor mechanism, used to protect the internal transmission components. The two ends of the housing 11 are respectively provided with a plate, which is defined as the front plate 12 and the rear plate 13 for ease of description.

[0029] The outer casing 11 is provided with a first wheel group and a second wheel group in sequence along the length direction of the strap. In this example, the first wheel group and the second wheel group are both a set, but it is not limited to this example. Multiple sets can also be set alternately.

[0030] The first wheel set includes two first friction wheels 14 arranged vertically. The circumferential surface of the first friction wheel 14 contacts and rubs against the upper side of the SMC workpiece located between the belt conveyor mechanisms. The second wheel set includes two second friction wheels 15 arranged vertically. The inner circumferential surface of the second friction wheel 15 contacts and rubs against the lower side of the SMC workpiece located between the clamping belts 5. The first friction wheel 14 and the second friction wheel 15 located on the same side of the upper layer are coaxial, and the first friction wheel 14 and the second friction wheel 15 located on the same side of the lower layer are also coaxial.

[0031] The first friction wheel 14 and the second friction wheel 15 extend in the same direction as the conveying direction of the clamping belt 5.

[0032] The first friction wheel 14 and the second friction wheel 15 rotate in opposite directions, and the inner circumferential surfaces of the first friction wheel 14 and the second friction wheel 15 are in contact with the side of the workpiece located between the clamping belts 5. Therefore, when the first friction wheel 14 grinds downward along the side, the second friction wheel 15 grinds upward along the same side, thus better removing burrs.

[0033] Based on the above structure, during installation, the first wheel assembly is mounted on the front panel 12, and the second wheel assembly is mounted on the rear panel 13. The mounting structures are identical, as follows:

[0034] Two first friction wheels 14 are rotatably mounted side-by-side on the front plate 12, and a first pulley 26 is fixed on the axle of each wheel. A first tension pulley 16 and a first drive pulley 17 are rotatably mounted on the front plate 12. The first tension pulley 16 and the first drive pulley 17 are both located between the two first friction wheels 14, and are located on the rear side of the first friction wheels 14 away from the tension belt. A first belt is wound between the two first friction wheels 14, the first tension pulley 16, and the first drive pulley 17. A front motor that drives the first drive pulley 17 is mounted on the front plate 12, thereby realizing synchronous driving of the two first friction wheels 14. The transmission mechanism is far away from the workpiece and does not affect the movement of the workpiece.

[0035] Two second friction wheels 15 are rotatably mounted side by side on the rear plate 13, and each is fixed with a second pulley 26. A second tension wheel and a second drive pulley 3 are rotatably mounted on the side of the rear plate 13 away from the second friction wheels 15, at a height between the two second friction wheels 15. The second drive pulley 3 is driven to rotate by a second motor mounted on the rear plate 13. A second belt is wound around the two second friction wheels 15, the second tension pulley 3 and the second drive pulley 3 for transmission of the two second friction wheels 15.

[0036] The front and rear motors are controlled to rotate in opposite directions, thereby enabling the first friction wheel 14 and the second friction wheel 15 to rotate in opposite directions, and to perform reverse friction on the side to remove burrs.

[0037] The grinding mechanism is provided with a front positioning mechanism and a rear positioning mechanism at both ends.

[0038] The front positioning mechanism includes two front wheel frames 18 symmetrically arranged on the left and right sides of the clamping belt 5. The front wheel frames 18 are rotatably mounted with front upright wheels 19 arranged in a curve on their inner sides. The front upright wheels 19 are axially upright and symmetrically arranged on both sides. The front upright wheels 19 on both sides spread outward in the opposite direction to the conveying of the clamping belt 5, so that the front upright wheels 19 on both sides form a trumpet structure, which can easily accommodate the workpiece and guide the workpiece in the center. The minimum distance between the front upright wheels 19 on both sides near the grinding mechanism is adapted to the width of the workpiece for centering and positioning the workpiece.

[0039] The rear positioning mechanism includes two rear wheel frames 20 symmetrically arranged on the left and right sides of the clamping belt 5. Rear upright wheels 21 arranged linearly are rotatably mounted on the inner side of the rear wheel frames 20. The rear upright wheels 21 are upright and the minimum distance between the rear upright wheels 21 is adapted to the width of the workpiece. The minimum distance between the rear upright wheels 21 and the front upright wheel 19 is less than the length of the workpiece. Therefore, the workpiece, which is centered by the front upright wheel 19, continues to be centered by the rear upright wheels 21 as the clamping belt 5 is conveyed, so that the workpiece maintains the effect of being centered during conveying, which is convenient for the friction operation on both sides.

[0040] In terms of installation, mounting rods 22 can be fixed on the front wheel frame 18 and the rear wheel frame 20 respectively. A strip frame 23 is fixed to the outer end of the mounting rod 22. The strip frame 23 is horizontally set, and a horizontally extending strip hole 24 is provided on the side of the strip frame 23 near the outer shell 11. One to three screw heads 25 that can pass through the strip hole 24 are provided on both sides of the outer shell 11. Locking nuts are fitted on the screw heads 25 to fix the front positioning mechanism and the rear positioning mechanism on both sides, and the position and spacing are adjustable.

[0041] Based on the above structure, one end of the workpiece is fed between the upper and lower clamping belts 5. The feeding method can be manual assistance or loading, or automated conveying can be carried out using a conveyor belt at the same height as the lower clamping belt 5. When one end of the workpiece enters between the two clamping belts 5, it moves backward with the driving force of the clamping belts 5. The front upright wheels 19 on both sides are flared to contain the position of the workpiece and gradually guide the workpiece to be centered between the two clamping belts 5. As it is conveyed, it first passes through the first friction wheel 14 to polish the side, and then the second friction wheel 15 polishes the side in the opposite direction. Finally, with the assistance of the rear upright wheel 21, it passes smoothly through the clamping belt 5 and enters the conveying system, or is sent to the next process after being concentrated.

[0042] This process simultaneously grinds all four sides in a single pass, achieving multi-angle, alternating grinding in opposite directions to ensure high-quality removal of burrs. It is highly efficient and solves a key pain point in this process. Furthermore, its automatic feeding and guiding capabilities facilitate assembly line operations and better integrate with advanced automated processing production lines.

Claims

1. A grinding device for SMC insulating profiles, characterized in that, The system includes symmetrically arranged belt conveyor mechanisms, each comprising a clamping belt. The adjacent belt surfaces of the two clamping belts are horizontal and rotate in opposite directions. A grinding mechanism is symmetrically arranged on both sides of the two belt conveyor mechanisms. Several sets of first and second wheel groups are rotatably mounted on the inner side of the grinding mechanism near the belt conveyor mechanism. The first and second wheel groups are alternately arranged. The first wheel group includes two first friction wheels arranged vertically side-by-side, and the second wheel group includes two second friction wheels arranged vertically side-by-side. The first and second friction wheels rotate in opposite directions.

2. The edge grinding device for SMC insulating profiles according to claim 1, characterized in that, The belt conveyor mechanism includes a housing, with pulleys rotatably mounted at both ends of the housing. The clamping belt is wound between the pulleys, and multiple support pulleys are arranged at equal intervals between the pulleys. A tensioning pulley is also provided inside the housing.

3. The edge grinding device for SMC insulating profiles according to claim 2, characterized in that, It also includes a frame, one end of which is fixed with an upright stand. The upper and lower parts of the stand are respectively provided with mounting platforms. A vertically extending guide rail and a double-ended lead screw are installed between the mounting platforms. A lifting motor for driving the rotation of the double-ended lead screw is installed on the top mounting platform. Two fixing blocks are slidably fitted on the guide rail. The fixing blocks are respectively fixed on two housings. The threads of the upper and lower parts of the double-ended lead screw are opposite. The upper and lower parts of the double-ended lead screw are respectively fitted with nuts. The two nuts are respectively fixed on the two fixing blocks.

4. The edge grinding device for SMC insulating profiles according to claim 1, characterized in that, The grinding mechanism includes a housing, which is fixed on the frame. The housing is a U-shaped shell structure with an opening opposite to the belt conveyor mechanism. A front plate and a rear plate are respectively provided at both ends of the housing. The front plate is used to install a first set of wheels located inside the housing, and the rear plate is used to install a second set of wheels located inside the housing. The axial directions of the first friction wheel and the second friction wheel extend in the same direction as the conveying direction of the clamping belt.

5. The edge grinding device for SMC insulating profiles according to claim 4, characterized in that, Two first friction wheels are rotatably mounted side by side on the front plate, and a first pulley is fixed on the axle of each first friction wheel. A first drive pulley based on motor drive is rotatably mounted on the front plate. The first drive pulley is located on the rear side of the two first pulleys away from the clamping belt. The first pulley and the first drive pulley are connected by belt drive. Two second friction wheels are rotatably mounted side by side on the rear plate, and a second pulley is fixed on the axle of each second friction wheel. A second drive pulley driven by a motor is rotatably mounted on the rear plate. The second drive pulley is located on the rear side of the two second pulleys away from the clamping belt. The second pulley and the second drive pulley are connected by belt drive. The first drive pulley and the second drive pulley rotate in opposite directions.

6. The edge grinding device for SMC insulating profiles according to claim 5, characterized in that, A first tensioning pulley is rotatably mounted on the front plate, and the first tensioning pulley is disposed between the first pulley and the first drive pulley. A second tensioning pulley is rotatably mounted on the rear plate, and the second tensioning pulley is disposed between the second pulley and the second drive pulley.

7. The edge grinding device for SMC insulating profiles according to claim 1, characterized in that, The grinding mechanism has a front positioning mechanism and a rear positioning mechanism at both ends. The front positioning mechanism includes two front wheel frames symmetrically arranged opposite each other on the clamping belt. Front vertical wheels arranged in a curved pattern are rotatably mounted on the inner side of the front wheel frames. The front vertical wheels are axially upright. The two front vertical wheels on both sides spread outward in the opposite direction of the conveying of the clamping belt. The minimum distance between the two front vertical wheels near the grinding mechanism is adapted to the width of the workpiece. The rear positioning mechanism includes two rear wheel frames symmetrically arranged opposite each other on the clamping belt. Rear vertical wheels arranged in a linear pattern are rotatably mounted on the inner side of the rear wheel frames. The rear vertical wheels are upright. The minimum distance between the rear vertical wheels is adapted to the width of the workpiece.

8. The edge grinding device for SMC insulating profiles according to claim 7, characterized in that, Mounting rods can be fixed on the front wheel frame and the rear wheel frame respectively. A strip frame is fixed to the outer end of the mounting rod. The strip frame is horizontally set, and a horizontally extending strip hole is provided on the side of the strip frame near the outer shell. One to three screw heads that can pass through the strip hole are provided on both sides of the outer shell respectively. Locking nuts are fitted on the screw heads.

Images