A wall planer cutter head assembly auxiliary device

Abstract

This utility model relates to the field of wall planer manufacturing technology, and in particular to an auxiliary device for assembling a wall planer cutter head. It includes a bracket with a cylinder mounted on one side. A slit is formed on the outer circumference of the cylinder, and a support plate that can slide radially along the cylinder is embedded within the slit. An elastic ejection assembly is mounted on the support plate, comprising several elastic protrusions that can extend and retract radially along the cylinder. When the keyway of the cutter is aligned with one of the elastic protrusions, the elastic protrusion can be inserted into the keyway. By mounting the elastic ejection assembly with elasticity on the support plate, when the cutter is rotated to a position where the keyway aligns with the elastic protrusion, the elastic protrusion automatically springs into the keyway, quickly completing the cutter alignment. This facilitates subsequent assembly with the drive shaft, significantly improving assembly efficiency, reducing operational intensity, avoiding assembly difficulties caused by keyway misalignment, and improving overall production efficiency and assembly quality.

Description

Technical Field

[0001] This utility model relates to the field of wall planer manufacturing technology, and in particular to an auxiliary device for assembling the cutter head of a wall planer. Background Technology

[0002] A wall planer is a tool used to remove paint, spots, or other impurities from walls during construction or renovation. Currently, the common method is to remove these impurities manually with a shovel. Wall planers are electrically driven, which rotates the blade roller to cut the impurities on the wall. In comparison, using a wall planer is both convenient and labor-saving.

[0003] To improve chip removal capacity, wall planers typically have adjacent blades staggered at an angle of 45°, 60°, or 90° on the drive shaft. For related structures, please refer to the blade roller of a wall planer disclosed in Publication No. CN205713194U.

[0004] To ensure synchronized operation of the cutting tools and drive rollers, a keyway is typically installed at the center hole of the cutting tool. To ensure the cutting heads are staggered at an angle, the keyway at the center hole needs to be set at multiple angles, meaning the keyway position for each cutting tool is different (see reference). Figure 1 );

[0005] When assembling the cutting tool and the drive roller, the worker needs to align the keyway of the cutting tool with the convex key of the drive roller before assembly can proceed. Because the keyway positions of the cutting tool are not uniform, the worker needs to find the position of each keyway during assembly, which makes the assembly very difficult and inefficient. Utility Model Content

[0006] The purpose of this utility model is to solve the problem mentioned in the background art that when assembling the cutter and the drive roller, the worker needs to completely align the keyway of the cutter with the convex key of the drive roller before assembly can be carried out. Since the keyway position of each cutter is different, the worker needs to find the position of each keyway during assembly, which makes the assembly very difficult and inefficient. Therefore, this utility model proposes an auxiliary device for assembling the cutter head of a wall planer.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A wall planer cutter head assembly auxiliary device includes a bracket, a cylinder mounted on one side of the bracket, a slot on the outer circumference of the cylinder, a support plate that can slide radially along the cylinder embedded in the slot, an elastic ejection assembly mounted on the support plate, the elastic ejection assembly including a plurality of elastic heads that can extend and retract radially along the cylinder, and when the keyway of the cutter is facing the elastic head, the elastic head can be inserted into the keyway.

[0009] This utility model proposes an auxiliary device for assembling cutter heads on a wall planer. The advantages are as follows: An elastic ejector component with a flexible function is installed on the support plate. When the cutter is rotated to a position where the keyway aligns with the elastic ejector, the elastic ejector automatically springs into the keyway, quickly completing the alignment of a single cutter. As other cutters operate sequentially, multiple keyways can be quickly and consistently aligned within a short time, facilitating subsequent assembly with the drive shaft, significantly improving assembly efficiency, reducing operational intensity, avoiding assembly difficulties caused by keyway misalignment, and improving overall production efficiency and assembly quality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the keyway position structure for multiple cutting tools in the prior art;

[0011] Figure 2 This is a schematic diagram of the tool state structure after the keyways of multiple tools are aligned in the prior art;

[0012] Figure 3 This is a schematic diagram of the cylindrical structure of this utility model;

[0013] Figure 4 This is a schematic diagram of the main sectional view of the support plate of this utility model in a retracted state;

[0014] Figure 5 This is a schematic diagram of the left cross-sectional structure of the support plate of this utility model in a retracted state;

[0015] Figure 6 This is a schematic diagram of the main sectional view of the support plate of this utility model in the extended state.

[0016] Figure 7 This is a schematic diagram of the left cross-sectional structure of the support plate of this utility model in the extended state;

[0017] Figure 8 This is a schematic diagram of the keyway of this utility model facing the elastic mandrel and the elastic mandrel being inserted into the keyway.

[0018] Figure 9 This is an exploded view of the support plate and ball-head plunger of this utility model.

[0019] In the diagram: 1. Handwheel; 2. Shaft; 3. Bracket; 4. Limiting platform; 5. Channel; 6. Ball plunger; 7. Slot; 8. Support plate; 9. Cylinder; 10. Cam roller; 12. Threaded hole; 13. Cutting tool; 14. Keyway; 15. Low surface; 16. High surface. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 3-9 A wall planer cutter head assembly auxiliary device includes a bracket 3, a cylinder 9 installed on one side of the bracket 3, a slot 7 opened on the outer circumference of the cylinder 9, a support plate 8 that can slide radially along the cylinder 9 embedded in the slot 7, an elastic ejection assembly installed on the support plate 8, the elastic ejection assembly includes a plurality of elastic heads that can extend and retract radially along the cylinder 9, when the keyway 14 of the cutter 13 is aligned with the elastic head, the elastic head can be inserted into the keyway 14.

[0022] In use, the operator sequentially places multiple cutting tools 13 onto the outer circumferential surface of the cylinder 9 and manually rotates each cutting tool 13. Since the outer circumferential surface of the cylinder 9 has a slot 7, and a support plate 8 is embedded within the slot 7, the support plate 8 can slide radially along the cylinder 9. An elastic ejection assembly is installed on the support plate 8, containing several elastic mandrels that are radially retractable. When the keyway 14 of the cutting tool 13 rotates to a position directly opposite the elastic mandrel, the elastic mandrel automatically springs into the keyway 14 under elastic force, thus limiting the current cutting tool 13. In this way, once the keyways 14 of all cutting tools 13 are engaged with the elastic mandrels, all keyways 14 are aligned, achieving alignment.

[0023] This device features a slot 7 on the outer circumference of the cylinder 9, with a sliding support plate 8 embedded within the slot 7. An elastic ejector assembly with a flexible function is mounted on the support plate 8. When the cutter 13 is rotated to a position where the keyway 14 aligns with the elastic ejector, the elastic ejector automatically springs into the keyway 14, quickly aligning a single cutter 13. As other cutters 13 operate sequentially, multiple keyways 14 can be quickly and consistently aligned within a short time. This facilitates subsequent assembly with the drive shaft, significantly improving assembly efficiency, reducing operational intensity, avoiding assembly difficulties caused by misalignment of the keyways 14, and enhancing overall production efficiency and assembly quality.

[0024] The cylinder 9 is provided with an ejector assembly, which has a first state and a second state. When the ejector assembly is in the first state, the elastic mandrel is located below the outer circumferential surface of the cylinder 9. When the ejector assembly is in the second state, the elastic mandrel is located above the outer circumferential surface of the cylinder 9.

[0025] The cylinder 9 is equipped with an ejector assembly, which has two operating modes: a first state and a second state. When the ejector assembly is in the first state, refer to... Figure 4 , Figure 5 When the elastic mandrel is in the retracted position, its end is lower than the outer circumference of the cylinder 9, so that the cylinder 9 remains smooth and flat. At this time, the operator can smoothly insert multiple cutting tools 13 into the outer circumference of the cylinder 9 without any interference, ensuring a smooth assembly process.

[0026] refer to Figure 6 , Figure 7 After the cutter 13 is fully inserted, the ejector assembly switches to the second state, and the elastic mandrel extends radially above the outer circumference of the cylinder 9. At this time, the operator rotates the cutter 13, referring to... Figure 7 , Figure 8 When the keyway 14 is rotated to the position directly opposite the elastic mandrel, the elastic mandrel automatically springs into the keyway 14 under the action of elasticity, thereby realizing the automatic alignment of the tool 13 with the keyway 14.

[0027] By setting an ejection assembly with two states, the extension and retraction control of the elastic mandrel is realized. In the first state, the elastic mandrel is hidden below the outer circumferential surface of the cylinder 9, making the surface of the cylinder 9 flat and smooth, which facilitates the quick and unobstructed placement of the tool 13; in the second state, the elastic mandrel moves up to above the outer circumferential surface of the cylinder 9, and can automatically insert into the keyway 14 during the rotation of the tool 13, realizing the rapid positioning and consistent alignment of multiple keyways 14.

[0028] A limiting platform 4 is provided at one end of the cylinder 9 to facilitate limiting the cutting tool at one end.

[0029] The ejection assembly includes a cam roller 10, which has a low surface 15 and a high surface 16. The cylinder 9 has a channel 5, and the cam roller 10 is located inside the channel 5. The bottom of the support plate 8 is supported on the outer circumferential surface of the cam roller 10. When the support plate 8 abuts against the low surface 15, the ejection assembly is in a first state. When the support plate 8 abuts against the high surface 16, the ejection assembly is in a second state.

[0030] The ejector assembly consists of a cam roller 10, which is positioned within the channel 5 of the cylinder 9. Its outer circumferential surface has two working surfaces at different heights: a low surface 15 and a high surface 16. The bottom of the support plate 8 contacts and supports the outer circumferential surface of the cam roller 10. When the low surface 15 of the cam roller 10 is below the support plate 8, the support plate 8 is in a lower position, and the elastic mandrel is below the outer circumferential surface of the cylinder 9. The ejector assembly is in its first state, facilitating the smooth insertion of the cutter 13 into the cylinder 9. Rotating the cam roller 10 causes the high surface 16 to rotate below the support plate 8, lifting the support plate 8 and causing the elastic mandrel to move above the outer circumferential surface of the cylinder 9. The ejector assembly then enters its second state. At this point, rotating the cutter 13 causes the keyway 14 to move to the corresponding position, and the elastic mandrel automatically springs into the keyway 14, achieving automatic alignment.

[0031] By designing a low surface 15 and a high surface 16 on the outer circumference of the cam roller 10, and combining this with the vertical sliding fit of the support plate 8, the switching control of the ejector assembly between the first and second states is achieved. This structure allows the elastic mandrel to be in a retracted state before the tool 13 is installed, avoiding interference with the insertion operation of the tool 13; after installation, the support plate 8 is lifted by rotating the cam roller 10, driving the elastic mandrel to extend, thus achieving the function of quickly aligning with the keyway 14.

[0032] A rotating shaft 2 is fixedly connected to the end of the cam roller 10. The rotating shaft 2 is rotatably connected to the bracket 3 and is coaxial with the cylinder 9. A handwheel 1 is installed at one end of the rotating shaft 2. By rotating the handwheel 1, the rotating shaft 2 drives the cam roller 10 to rotate, switching between two states.

[0033] The elastic ejection assembly consists of several ball-head plungers 6, each ball-head plunger 6 corresponding to a cutter 13. The support plate 8 has several threaded holes 12, and the ball-head plungers 6 are threadedly connected to the threaded holes 12. The elastic ball head of the ball-head plunger 6 is located at the elastic ejector.

[0034] The elastic ejection assembly consists of several ball-head plungers 6, each corresponding to a cutting tool 13. Several threaded holes 12 are pre-drilled on the support plate 8. The ball-head plungers 6 are securely connected to the threaded holes 12 via a threaded structure. After installation, the elastic ball head of the ball-head plunger 6 faces the radially outward side of the cylinder 9, forming a retractable elastic ejector. When the ejection assembly is in the second state, the elastic ball head of the ball-head plunger 6 extends above the outer circumference of the cylinder 9. The operator rotates the cutting tool 13, and when the keyway 14 rotates to face the ball-head plunger 6, the elastic ball head of the ball-head plunger 6 automatically springs into the keyway 14 under the action of elastic force, thereby achieving automatic limiting and alignment. By using the ball-head plunger 6 as the core component of the elastic ejection assembly and installing it in the threaded holes 12 on the support plate 8 via a threaded connection, the structure is easy to install and reliably fixed.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wall planer cutter head assembly auxiliary device, comprising a bracket (3), characterized in that, A cylinder (9) is installed on one side of the bracket (3). A slot (7) is opened on the outer circumference of the cylinder (9). A support plate (8) that can slide radially along the cylinder (9) is embedded in the slot (7). An elastic ejection assembly is installed on the support plate (8). The elastic ejection assembly includes several elastic heads that can extend and retract radially along the cylinder (9). When the keyway (14) of the cutter (13) is facing the elastic head, the elastic head can be inserted into the keyway (14).

2. The auxiliary device for assembling the cutter head of a wall planer according to claim 1, characterized in that, The cylinder (9) is provided with an ejector assembly, which has a first state and a second state. When the ejector assembly is in the first state, the elastic head is located below the outer circumferential surface of the cylinder (9). When the ejector assembly is in the second state, the elastic head is located above the outer circumferential surface of the cylinder (9).

3. The auxiliary device for assembling the cutter head of a wall planer according to claim 2, characterized in that, The ejection assembly includes a cam roller (10) having a low surface (15) and a high surface (16). The cylinder (9) has a channel (5). The cam roller (10) is located inside the channel (5). The bottom of the support plate (8) is supported on the outer circumferential surface of the cam roller (10). When the support plate (8) abuts against the low surface (15), the ejection assembly is in a first state. When the support plate (8) abuts against the high surface (16), the ejection assembly is in a second state.

4. The auxiliary device for assembling the cutter head of a wall planer according to claim 3, characterized in that, The end of the cam roller (10) is fixedly connected to a rotating shaft (2), which is rotatably connected to the bracket (3) and is coaxially arranged with the cylinder (9).

5. The auxiliary device for assembling the cutter head of a wall planer according to claim 4, characterized in that, A handwheel (1) is installed at one end of the rotating shaft (2).

6. A wall planer cutter head assembly auxiliary device according to any one of claims 1-5, characterized in that, The elastic ejection assembly consists of several ball-head plungers (6), each ball-head plunger (6) corresponding to a cutter (13). The support plate (8) has several threaded holes (12), and the ball-head plungers (6) are threadedly connected to the threaded holes (12). The elastic ball head of the ball-head plunger (6) is located at the elastic ejection head.

7. The auxiliary device for assembling the cutter head of a wall planer according to claim 6, characterized in that, One end of the cylinder (9) has a limiting platform (4).

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