Plastic steel profile notch polisher

By designing an adjustable grinding wheel and a multi-angle grinding structure, the problem of low grinding efficiency of PVC profile cuts was solved, and efficient grinding of PVC profile grooves and L-shaped inner cuts was achieved.

CN224158213UActive Publication Date: 2026-04-24SICHUAN TIANSHENGDA CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN TIANSHENGDA CONSTR ENG CO LTD
Filing Date
2025-04-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing grinders have difficulty effectively handling the cuts in the grooves of shaped materials when grinding PVC profiles, and have low grinding efficiency for the inner side of L-shaped cuts.

Method used

A plastic steel profile cut grinder was designed, which includes a handle, a battery, a micro motor, a telescopic mechanism and multiple grinding wheels. The grinding wheels can be flexibly adjusted through the telescopic mechanism and the fixed structure to adapt to the grinding needs of grooves of different shapes. The grinding angle can also be adjusted vertically to efficiently grind L-shaped inner cuts.

Benefits of technology

It achieves efficient grinding of the grooves in the shape of PVC profiles, improving grinding efficiency, especially significantly improving the grinding effect of the L-shaped inner cut.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a plastic steel profile notch polisher, which relates to the technical field of polishers and comprises a handle, a storage battery is fixedly embedded in the handle, and a charging port is arranged at the bottom of the storage battery. According to the polishing device, one end of the second polishing wheel is held by a hand, a square limiting rod with a proper length is pulled out according to actual requirements, then the rotary knob is rotated in the forward direction, the square limiting rod is fixed, the first polishing wheel is attached to a notch of a plastic-steel profile for polishing, and then the second polishing wheel extends into the side face of the notch of a plastic-steel profile-shaped groove for polishing. When the side face of a notch in the L-shaped inner side of the plastic steel profile needs to be polished, one end of a second polishing wheel is held by hand, one end of a square limiting rod is completely pushed into the mounting box, one side of the second polishing wheel and one side of a first polishing wheel are in a 90-degree perpendicular state, and the polishing wheel is driven to rotate; the two working face ends of the polisher are attached to the side face of a notch in the L-shaped inner side of the plastic steel profile for polishing.
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Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, and in particular to a grinding equipment for cutting edges of PVC profiles. Background Technology

[0002] In the production and manufacturing process of PVC doors and windows, PVC profiles are required. When using PVC profiles, they need to be cut to an appropriate length. After the PVC profiles are cut, the cut edges need to be polished. At this time, a grinder is needed to polish the cut edges of the PVC profiles.

[0003] However, in existing technologies, grinders typically consist of a grinder machine with a grinding wheel installed. Different sized grinding wheels are used to grind the cut edges of PVC profiles depending on the scenario. However, the working end of the grinder has a fixed length, which makes it inconvenient to grind the sides of cut edges in the grooves of PVC profiles. On the other hand, grinders can usually only be equipped with one grinding wheel. When it is necessary to grind the sides of the L-shaped inner cut edges of PVC profiles, multiple angles need to be adjusted for grinding, resulting in low grinding efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plastic steel profile cutting grinder, comprising: a handle, a battery fixedly embedded inside the handle, a charging port at the bottom of the battery, a control button embedded on one side of the handle surface, a connecting structure at the top of the handle, a braking mechanism on one side of the inner cavity of the connecting structure, a first grinding component at the top of the connecting structure, a telescopic mechanism at one end of the braking mechanism, a second grinding component at the other end of the telescopic mechanism, and a fixing structure on one side of the connecting structure.

[0006] In a preferred embodiment, the connection structure includes a mounting box, which is fixedly connected to the top of the handle. A fixing plate is fixedly connected to the top of the inner cavity of the mounting box, and a support plate is fixedly connected to one end of the inner cavity of the mounting box.

[0007] In a preferred embodiment, the braking mechanism includes a micro motor, which is fixedly connected to one end of the inner cavity of the mounting box. A bevel gear is fixedly connected to the output end of the micro motor. A rotating shaft is embedded and installed on the surface of the fixing plate through a bearing. A bevel gear is fixedly connected to the bottom end of the rotating shaft, and the bevel gear meshes with the bevel gear. A gear is fixedly connected to the top end of the rotating shaft.

[0008] In a preferred embodiment, the first grinding assembly includes a second rotating shaft, which is mounted on one side of the top of the mounting box via a bearing. A second gear is fixedly connected to the bottom end of the second rotating shaft, which meshes with the first gear. A first grinding wheel is fixedly connected to the top end of the second rotating shaft.

[0009] In a preferred embodiment, the telescopic mechanism includes a sleeve, one end of which is fixedly connected to the other side of a bevel gear. A limiting groove is formed on one side of the inner cavity of the sleeve. A connecting shaft is movably embedded inside the sleeve. A limiting slider is fixedly connected to one end of the surface of the connecting shaft. The limiting slider is movably embedded inside the limiting groove.

[0010] In a preferred embodiment, the second grinding assembly includes a square limiting rod, which is movably embedded in the other end of the mounting box cavity. The bottom of the square limiting rod is movably attached to the top of the support plate. Limiting plates are fixedly connected to both sides of one end of the square limiting rod. Three threaded holes are opened on one side of the square limiting rod. A rotating shaft three is embedded in the inside of the square limiting rod through a bearing. One end of the rotating shaft three is fixedly connected to the other end of the connecting shaft, and the other end of the rotating shaft three is fixedly connected to the second grinding wheel.

[0011] In a preferred embodiment, the fixing structure includes a threaded rod, one end of which is threadedly embedded in the surface of one side of the mounting box. A circular limiting plate is fixedly sleeved on the surface of the threaded rod, the circular limiting plate being located on one side of the inner cavity of the mounting box. One end of the threaded rod is movably embedded in the interior of one of the threaded holes, and the other end of the threaded rod is fixedly connected to a knob.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, one end of the second hand-held grinding wheel is pulled outward to extend a square limiting rod of an appropriate length according to actual needs. Then, the knob is rotated in the forward direction, and one end of the threaded rod is fully embedded in the corresponding threaded hole. One side of the circular limiting plate is attached to the surface of the square limiting rod to fix the square limiting rod. The first grinding wheel is attached to the cut of the plastic steel profile for grinding. Then, the second grinding wheel is inserted into the side of the cut of the groove in the plastic steel profile for grinding.

[0014] 2. In this utility model, when it is necessary to grind the inner cut side of the L-shaped plastic steel profile, hold one end of the second grinding wheel and push one end of the square limiting rod completely into the interior of the mounting box. One side of the second grinding wheel is perpendicular to one side of the first grinding wheel. The two working surfaces of the grinder are then attached to the inner cut side of the L-shaped plastic steel profile for grinding. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a plastic steel profile cutting grinder provided by this utility model;

[0016] Figure 2 A side view of a plastic steel profile cutter grinder provided by this utility model;

[0017] Figure 3 A schematic diagram of the internal component structure of a plastic steel profile cutting grinder provided by this utility model. Figure 1 ;

[0018] Figure 4 A schematic diagram of the internal structure of the telescopic mechanism of a plastic steel profile cutting grinder provided by this utility model;

[0019] Figure 5 A schematic diagram of the internal component structure of a plastic steel profile cutting grinder provided by this utility model. Figure 2 ;

[0020] Figure 6 A schematic diagram of the fixing structure of a plastic steel profile cutting grinder provided by this utility model.

[0021] Legend:

[0022] 1. Handle; 2. Battery; 3. Charging port; 4. Control button; 5. Connecting structure; 501. Mounting box; 502. Fixing plate; 503. Support plate; 6. Braking mechanism; 601. Micro motor; 602. Bevel gear one; 603. Rotating shaft one; 604. Bevel gear two; 605. Gear one; 7. Grinding assembly one; 701. Rotating shaft two; 702. Gear two; 703. Grinding wheel one; 8. Telescopic mechanism; 801. Sleeve; 802. Limiting groove; 803. Connecting shaft; 804. Limiting slider; 9. Grinding assembly two; 901. Square limiting rod; 902. Limiting plate; 903. Threaded hole; 904. Rotating shaft three; 905. Grinding wheel two; 10. Fixing structure; 1001. Threaded rod; 1002. Circular limiting plate; 1003. Knob. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6This utility model provides a technical solution: a plastic steel profile cutting grinder, comprising: a handle 1, a battery 2 fixedly embedded inside the handle 1, a charging port 3 at the bottom of the battery 2, a control button 4 embedded on one side of the surface of the handle 1, a connecting structure 5 at the top of the handle 1, a braking mechanism 6 on one side of the inner cavity of the connecting structure 5, a first grinding component 7 at the top of the connecting structure 5, a telescopic mechanism 8 at one end of the braking mechanism 6, a second grinding component 9 at the other end of the telescopic mechanism 8, and a fixing structure 10 on one side of the connecting structure 5.

[0025] Specifically: Battery 2 provides power to the device; handle 1 has an associated docking control terminal (not shown in the attached figure) that is associated with and controls the components inside the device; charging port 3 is used to facilitate charging of battery 2; control button 4 is used for operation; the above structures are all existing technologies and common knowledge, and will not be described in detail here; connecting structure 5 is used to install and fix each component; braking mechanism 6 is used to drive grinding wheel 703 and grinding wheel 905 to rotate; telescopic mechanism 8 is used to assist grinding component 9 in telescopic movement inside connecting structure 5; and fixing structure 10 is used to fix and limit grinding component 9.

[0026] In one embodiment, the connection structure 5 includes a mounting box 501, which is fixedly connected to the top of the handle 1. A fixing plate 502 is fixedly connected to the top of the inner cavity of the mounting box 501, and a support plate 503 is fixedly connected to one end of the inner cavity of the mounting box 501.

[0027] Specifically: the fixing plate 502 is used to install and fix the rotating shaft 603, and the support plate 503 is used to assist in lifting the grinding component 9.

[0028] In one embodiment, the braking mechanism 6 includes a micro motor 601, which is fixedly connected to one end of the inner cavity of the mounting box 501. A bevel gear 602 is fixedly connected to the output end of the micro motor 601. A rotating shaft 603 is embedded and installed on the surface of the fixing plate 502 through a bearing. A bevel gear 604 is fixedly connected to the bottom end of the rotating shaft 603. The bevel gear 604 meshes with the bevel gear 602. A gear 605 is fixedly connected to the top end of the rotating shaft 603.

[0029] Specifically: the micro motor 601 drives the bevel gear 602 to rotate, and the bevel gear 602 meshes with the bevel gear 604 to drive the shaft 603 to rotate, thereby driving the gear 605 to rotate.

[0030] In one embodiment, the grinding assembly 7 includes a second rotating shaft 701, which is embedded in one side of the top of the mounting box 501 through a bearing. A second gear 702 is fixedly connected to the bottom end of the second rotating shaft 701, and the second gear 702 meshes with a first gear 605. A first grinding wheel 703 is fixedly connected to the top end of the second rotating shaft 701.

[0031] Specifically: Gear 605 meshes with gear 702, driving shaft 701 to rotate, which in turn drives grinding wheel 703 to rotate.

[0032] In one embodiment, the telescopic mechanism 8 includes a sleeve 801, one end of which is fixedly connected to the other side of the bevel gear 602. A limiting groove 802 is formed on one side of the inner cavity of the sleeve 801. A connecting shaft 803 is movably embedded inside the sleeve 801. A limiting slider 804 is fixedly connected to one end of the surface of the connecting shaft 803. The limiting slider 804 is movably embedded inside the limiting groove 802.

[0033] Specifically: The limiting groove 802, together with the limiting slider 804, limits the connecting shaft 803 to prevent one end of the connecting shaft 803 from rotating inside the sleeve 801.

[0034] In one embodiment, the second grinding component 9 includes a square limiting rod 901, which is movably embedded in the other end of the inner cavity of the mounting box 501. The bottom of the square limiting rod 901 is movably attached to the top of the support plate 503. Limiting plates 902 are fixedly connected to both sides of one end of the square limiting rod 901. Three threaded holes 903 are opened on one side of the square limiting rod 901. A rotating shaft 904 is embedded and installed inside the square limiting rod 901 through a bearing. One end of the rotating shaft 904 is fixedly connected to the other end of the connecting shaft 803, and the other end of the rotating shaft 904 is fixedly connected to the second grinding wheel 905.

[0035] Specifically: The limiting plate 902 is used to assist in limiting the square limiting rod 901. When one side of the limiting plate 902 contacts one end of the threaded rod 1001, the limiting slider 804 slides to the leftmost side of the inner cavity of the limiting groove 802. The micro motor 601 works by connecting the bevel gear 602 to the sleeve 801, connecting shaft 803, rotating shaft 904, and grinding wheel 905 in sequence, driving the grinding wheel 905 to rotate. The threaded hole 903 cooperates with the fixing structure 10 to fix and limit 9001. The size of the grinding wheel 905 is smaller than that of the grinding wheel 703. 805 is used to grind the inside of the groove of the plastic steel profile.

[0036] In one embodiment, the fixing structure 10 includes a threaded rod 1001. One end of the surface of the threaded rod 1001 is threadedly embedded in the surface of one side of the mounting box 501. A circular limiting plate 1002 is fixedly sleeved on the surface of the threaded rod 1001. The circular limiting plate 1002 is located on one side of the inner cavity of the mounting box 501. One end of the threaded rod 1001 is movably embedded in the interior of one of the threaded holes 903. The other end of the threaded rod 1001 is fixedly connected to a knob 1003.

[0037] Specifically: When the knob 1003 is rotated in the forward direction, one end of the threaded rod 1001 is fully embedded inside the threaded hole 903, and one side of the circular limiting plate 1002 is in contact with the surface of the square limiting rod 901. When the knob 1003 is rotated in the reverse direction, one end of the threaded rod 1001 is completely disengaged from the inside of the threaded hole 903, and the other side of the circular limiting plate 1002 is in contact with the surface of one side of the inner cavity of the mounting box 501.

[0038] Working principle: After the plastic steel profile is cut, the cut needs to be polished. When using this polisher, turn the knob 1003 in the opposite direction. One end of the threaded rod 1001 is completely disengaged from the inside of the threaded hole 903. The other side of the circular limiting plate 1002 is attached to the surface of one side of the inner cavity of the mounting box 501. According to the depth of the groove of the plastic steel profile, hold one end of the polishing wheel 905 and pull out an appropriate length of the square limiting rod 901. The limiting slider 804 slides to the left along the inside of the limiting groove 802. Then, turn the knob 1003 in the forward direction. One end of the threaded rod 1001 is completely embedded in the inside of the corresponding threaded hole 903. One side of the circular limiting plate 1002 is attached to the surface of the square limiting rod 901 to fix the square limiting rod 901.

[0039] Pressing control button 4 activates the micro motor 601, which drives bevel gear 602 to rotate. Bevel gear 602 meshes with bevel gear 604, which in turn drives shaft 603 to rotate, thereby driving gear 605 to rotate. Gear 605 meshes with gear 702, which in turn drives shaft 701 to rotate, thereby driving grinding wheel 703 to rotate. Simultaneously, bevel gear 602 is connected to sleeve 801, connecting shaft 803, shaft 904, and grinding wheel 905 in sequence, driving grinding wheel 905 to rotate. Grinding wheel 703 is then placed against the cut of the plastic steel profile for grinding, and grinding wheel 905 is then inserted into the side of the cut in the groove of the plastic steel profile for grinding.

[0040] With this setting, the length of the working end of the grinder can be adjusted according to the depth of the groove in the actual plastic steel profile, so that the working end can better reach into the groove to grind the side of the cut.

[0041] When it is necessary to grind the inner side of the L-shaped cut of the PVC profile, hold one end of the second grinding wheel 905 and push one end of the square limiting rod 901 completely into the interior of the mounting box 501. At this time, the limiting slider 804 slides to the rightmost side inside the limiting groove 802. One side of the second grinding wheel 905 is perpendicular to one side of the first grinding wheel 703 at a 90-degree angle. The top of the surface of the second grinding wheel 905 is below one end of the threaded hole 903, and the top of the surface of the second grinding wheel 905 is slightly lower than the bottom of one end of the threaded hole 903. Then rotate the knob 1003 in the forward direction, and one end of the threaded rod 1001 is completely embedded in the interior of the leftmost threaded hole 903.

[0042] Pressing the control button 4 turns on the micro motor 601. The micro motor 601 drives the bevel gear 602 to rotate. The bevel gear 602 meshes with the bevel gear 604 to drive the shaft 603 to rotate, which in turn drives the gear 605 to rotate. At the same time, the bevel gear 602 is connected to the sleeve 801, the connecting shaft 803, the shaft 904, and the grinding wheel 905 in sequence, driving the grinding wheel 905 to rotate. The two working surfaces of the grinder are then placed against the cut side of the L-shaped inner side of the plastic steel profile for grinding.

[0043] This setting speeds up the grinding process of the cut surfaces.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A PVC profile cutter grinder, characterized in that, include: A handle (1) is provided, and a storage battery (2) is fixedly installed inside the handle (1). A charging port (3) is provided at the bottom of the storage battery (2). A control button (4) is installed on one side of the surface of the handle (1). A connecting structure (5) is provided at the top of the handle (1). A braking mechanism (6) is provided on one side of the inner cavity of the connecting structure (5). A first grinding component (7) is provided at the top of the connecting structure (5). A telescopic mechanism (8) is provided at one end of the braking mechanism (6). A second grinding component (9) is provided at the other end of the telescopic mechanism (8). A fixing structure (10) is provided on one side of the connecting structure (5).

2. The plastic steel profile cutting edge grinder according to claim 1, characterized in that: The connection structure (5) includes a mounting box (501), which is fixedly connected to the top of the handle (1). A fixing plate (502) is fixedly connected to the top of the inner cavity of the mounting box (501), and a support plate (503) is fixedly connected to one end of the inner cavity of the mounting box (501).

3. The plastic steel profile cutting edge grinder according to claim 2, characterized in that: The braking mechanism (6) includes a micro motor (601), which is fixedly connected to one end of the inner cavity of the mounting box (501). A bevel gear (602) is fixedly connected to the output end of the micro motor (601). A rotating shaft (603) is embedded and installed on the surface of the fixing plate (502) through a bearing. A bevel gear (604) is fixedly connected to the bottom end of the rotating shaft (603). The bevel gear (604) meshes with the bevel gear (602). A gear (605) is fixedly connected to the top end of the rotating shaft (603).

4. The plastic steel profile cutter grinder according to claim 3, characterized in that: The first polishing assembly (7) includes a second rotating shaft (701), which is mounted on one side of the top of the mounting box (501) through a bearing. A second gear (702) is fixedly connected to the bottom end of the second rotating shaft (701), and the second gear (702) meshes with a first gear (605). A first polishing wheel (703) is fixedly connected to the top end of the second rotating shaft (701).

5. A plastic steel profile cutting edge grinder according to claim 4, characterized in that: The telescopic mechanism (8) includes a sleeve (801), one end of which is fixedly connected to the other side of the bevel gear (602). A limiting groove (802) is provided on one side of the inner cavity of the sleeve (801). A connecting shaft (803) is movably embedded inside the sleeve (801). A limiting slider (804) is fixedly connected to one end of the surface of the connecting shaft (803). The limiting slider (804) is movably embedded inside the limiting groove (802).

6. The plastic steel profile cutting grinder according to claim 1, characterized in that: The second grinding component (9) includes a square limiting rod (901), which is movably embedded in the other end of the inner cavity of the mounting box (501). The bottom of the square limiting rod (901) is movably attached to the top of the support plate (503). Limiting plates (902) are fixedly connected to both sides of one end of the square limiting rod (901). Three threaded holes (903) are opened on one side of the square limiting rod (901). A rotating shaft (904) is installed inside the square limiting rod (901) through a bearing. One end of the rotating shaft (904) is fixedly connected to the other end of the connecting shaft (803). The other end of the rotating shaft (904) is fixedly connected to the second grinding wheel (905).

7. A plastic steel profile cutting grinder according to claim 1, characterized in that: The fixing structure (10) includes a threaded rod (1001), one end of which is threadedly embedded in the surface of the mounting box (501). A circular limiting plate (1002) is fixedly sleeved on the surface of the threaded rod (1001), which is located on one side of the inner cavity of the mounting box (501). One end of the threaded rod (1001) is movably embedded in the interior of one of the threaded holes (903), and the other end of the threaded rod (1001) is fixedly connected to a knob (1003).