Handheld wire drawing machine with built-in dust collection

Abstract

This utility model discloses a handheld wire drawing machine with built-in dust collection, including a housing, a wire drawing wheel, a drive motor, and a protective cover. The drive motor is installed inside the housing, and the wire drawing wheel is connected to the drive motor for transmission. The protective cover partially covers the outside of the wire drawing wheel, and a first opening is provided on one side surface of the protective cover. A connecting seat for connecting to a dust collection device is detachably installed on the first opening. A dust outlet channel is provided inside the connecting seat for sucking up the debris and dust generated by the operation of the wire drawing wheel. By making the connecting seat and the protective cover detachably connected, the connecting seat and the protective cover can be formed independently, eliminating the need to form the connecting seat by stamping on the protective cover. This reduces the difficulty of processing and forming the protective cover and the connecting seat, thereby reducing the processing and manufacturing cost.

Description

Technical Field

[0001] This utility model relates to a surface processing equipment, and more particularly to a handheld wire drawing machine with built-in dust collection. Background Technology

[0002] Wire drawing is a surface treatment process in machining. It involves using a reciprocating motion of abrasive paper to rub the workpiece surface, creating a neat, straight texture and improving surface finish. After wire drawing, the surface quality is improved, concealing minor scratches, mechanical marks, and mold defects. Currently, wire drawing is typically achieved using a wire drawing machine. During the process, the high-speed rotating steel wire wheel rolls across the workpiece surface, generating a significant amount of harmful dust. Handheld wire drawing machines often rely on external vacuum cleaners to remove this dust, requiring the vacuum nozzle to be pointed directly at the working head. This method is not only ineffective at dust removal but also inconvenient for movement.

[0003] To address the aforementioned issues, wire drawing machines with built-in dust collection capabilities have emerged on the market. For example, patent CN214923287U discloses a handheld wire drawing machine, which includes a handle, a wire drawing wheel, a drive motor, and a belt drive mechanism for driving the wire drawing wheel to roll. A wire drawing wheel cover is installed above the wire drawing wheel, and an integrally formed cylindrical dust outlet connector is protruding on the outer side of the wire drawing wheel cover. A dust outlet sleeve is detachably connected to the dust outlet connector, and then the dust collection fan is connected through the dust outlet sleeve.

[0004] The existing wire drawing machine has the following problems: the dust outlet connector and the protective cover are integrally formed. During processing, a protruding round tube needs to be punched out on the side of the formed protective cover, which is very difficult to process and has high processing and manufacturing costs. Utility Model Content

[0005] Based on the above-mentioned problem that the dust outlet connector and the protective cover are integrally formed, during processing, a protruding round tube needs to be stamped on the side of the formed protective cover, which is very difficult to process and has high processing and manufacturing costs, this utility model provides a handheld wire drawing machine with built-in dust collection.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a handheld wire drawing machine with built-in dust collection, including a machine housing, a wire drawing wheel, a drive motor and a protective cover. The drive motor is installed inside the machine housing, and the wire drawing wheel is connected to the drive motor for transmission. The protective cover partially covers the outside of the wire drawing wheel. A first opening is provided on one side surface of the protective cover. A connecting seat for connecting to a dust collection device is detachably installed on the first opening. A dust outlet channel is provided inside the connecting seat. The dust outlet channel is used to suck up the debris and dust generated by the operation of the wire drawing wheel.

[0007] A further preferred technical solution of this utility model is as follows: the dust outlet channel includes a first channel, which gradually narrows from one end to the other. The large opening at one end of the first channel is located on the side where the connecting seat is connected to the first opening, and the large opening is opposite to the outer peripheral surface of the wire drawing wheel used for operation.

[0008] A further preferred embodiment of this utility model is as follows: the connecting seat includes a seat body and a connector disposed on one side of the seat body for detachable connection with a dust collection device. The first channel is disposed on the seat body, with the larger opening of the first channel located on the side of the seat body away from the connector, and the smaller opening of the first channel located on the side of the seat body connected to the connector. The dust outlet channel includes a second channel disposed within the connector, with the inlet of the second channel connected to the smaller opening of the first channel, and the outlet of the second channel located on the side of the connector away from the seat body. A step is provided between the seat body and the connector.

[0009] A further preferred embodiment of this utility model is as follows: the first opening extends downward and penetrates the lower edge of the protective cover to form an insertion port for the connector to enter at the lower edge of the protective cover. The outer side wall of the connector with the first channel has two protruding edges spaced apart front and back. The protruding edges surround the periphery of the large opening, and a slot is formed between the two protruding edges. The connector enters the first opening upward from the insertion port. The top edge and the side edges of the first opening are both inserted into the slot. The connector and the protective cover are fixed together by screws.

[0010] A further preferred embodiment of this utility model is as follows: an installation protrusion for connecting with a screw is provided on the outer convex edge of the protective cover, the protective cover is provided with a connecting hole for the screw to pass through, and a clearance notch for avoiding the screw is provided on the outer convex edge of the inner side of the protective cover, the clearance notch being opposite to the installation protrusion.

[0011] A further preferred embodiment of this utility model is that a dust-proof component is installed at the bottom of the seat near the large opening.

[0012] A further preferred embodiment of this utility model is as follows: the bottom of the seat is provided with a sliding groove, and the dustproof component is provided with a slider, which is inserted into the sliding groove for fixation.

[0013] A further preferred embodiment of this invention is that the dust-blocking component is a soft rubber strip or brush bristles.

[0014] A further preferred embodiment of this utility model is that the ratio of the width of the first channel to the width of the drawing wheel is greater than or equal to 0.75 and less than or equal to 1.

[0015] A further preferred technical solution of this utility model is as follows: the width and height of the first channel gradually decrease from one end to the other end, the lower edge of the large opening of the first channel is located near the bottom of the connecting seat, and the inner bottom surface of the first channel slopes upward from the large opening end to the small opening end.

[0016] Compared with the prior art, the advantage of this utility model is that a first opening is opened on one side surface of the protective cover, and a connecting seat for connecting to a dust collection device is detachably installed on the first opening. A dust outlet channel is provided inside the connecting seat, which is used to suck up the debris and dust generated by the wire drawing wheel operation. By making the connecting seat and the protective cover detachably connected, the connecting seat and the protective cover can be formed independently, without the need to form the connecting seat by stamping on the protective cover. This reduces the difficulty of processing and forming the protective cover and the connecting seat, thereby reducing the processing and manufacturing cost. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram showing the disassembly of the connector and the protective cover;

[0021] Figure 4 Schematic diagram of the connector structure Figure 1 ;

[0022] Figure 5 Schematic diagram of the connector structure Figure 2 ;

[0023] Figure 6 This is a schematic diagram showing the disassembled dust-blocking component and the connecting seat;

[0024] Figure 7 This is a schematic diagram of a vertical section of this patent;

[0025] Figure 8 for Figure 7 Enlarged view of a portion at point A;

[0026] Figure 9This is a schematic diagram of a cross-section of this patent;

[0027] Figure 10 for Figure 9 A magnified view of section B;

[0028] Figure 11 This is a diagram showing the usage state of the dust extraction sleeve connected to the connector.

[0029] In the diagram: 1. Housing; 2. Box; 3. Protective cover; 4. Brushing wheel; 5. Connecting seat; 6. Dustproof component; 7. Dust outlet channel; 8. First opening; 9. Connecting hole; 10. Insert; 11. Side edge; 12. Top edge; 13. Base; 14. Connector; 15. Mounting protrusion; 16. Outer protrusion; 17. Slot; 18. First channel; 19. Large opening; 20. Step; 21. Second channel; 22. Slide groove; 23. Slider; 24. Dust outlet sleeve; 25. Small opening; 26. Clearance notch. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0032] Figures 1-11 As shown, the handheld wire drawing machine with built-in dust collection includes a housing 1, a drawing wheel 4, a drive motor, and a protective cover 3. The drive motor is installed inside the housing 1, and the drawing wheel 4 is connected to the drive motor for transmission. The protective cover 3 partially covers the outside of the drawing wheel 4. The part of the housing 1 where the drive motor is installed is not shown in the figure; only the front of the housing is shown.

[0033] A housing 2 is fixedly installed at the front of the housing 1. A transmission device is installed inside the housing 2. The transmission device is used to drive the drive motor and the drawing wheel 4. The transmission device transmits the power output by the drive motor to the drawing wheel 4, so that the drawing wheel 4 can rotate and roll. A protective cover 3 is fixedly installed on one side of the housing 2 and partially covers the outside of the drawing wheel 4.

[0034] The above structure is the same as that of existing wire drawing machines, such as patents CN214923287U and CN216913291U.

[0035] Figure 3As shown, a first opening 8 is provided on one side surface of the protective cover 3. A connecting seat 5 for connecting to a dust collection device is detachably installed on the first opening 8. A dust discharge channel 7 is provided inside the connecting seat 5. The dust discharge channel 7 is used to suck up the debris and dust generated by the wire drawing wheel 4 during operation.

[0036] The first opening 8 is located on the part of the protective cover 3 that surrounds the outer periphery of the drawing wheel 4.

[0037] This patent makes the connecting seat 5 and the protective cover 3 detachably connected, so that the connecting seat 5 and the protective cover 3 can be formed independently. The connecting seat 5 does not need to be formed by stamping on the protective cover 3, which reduces the processing and forming difficulty of the protective cover 3 and the connecting seat 5, thereby reducing the processing and manufacturing cost.

[0038] The connecting seat 5 is formed by casting.

[0039] Figure 4 As shown, the dust outlet channel 7 includes a first channel 18, which gradually narrows from one end to the other. A large opening 19 at one end of the first channel 18 is located on the side where the connecting seat 5 is connected to the first opening 8. The large opening 19 is opposite to the outer peripheral surface of the wire drawing wheel 4 used for operation. The dust inlet end is set as the large opening 19 to improve the dust collection effect.

[0040] Preferably, the ratio of the width of the large opening 19 of the first channel 18 to the width of the drawing wheel 4 is greater than or equal to 0.75 and less than or equal to 1, so that the large opening 19 is basically aligned with the entire processing surface of the drawing wheel 4, thereby improving the dust collection effect. Most preferably, the ratio of the width of the large opening 19 of the first channel 18 to the width of the drawing wheel 4 is 0.9.

[0041] Figures 3-5 As shown, the first opening 8 extends downward and penetrates the lower edge of the protective cover 3 to form an insertion port 10 for the connector 5 to enter at the lower edge of the protective cover 3. The outer side wall of one end of the connector 5 with the first channel 18 has two protruding edges 16 spaced apart front and back. The protruding edges 16 surround the periphery of the large opening 19, and a slot 17 is formed between the two protruding edges 16. The connector 5 enters the first opening 8 upward from the insertion port 10. The top edge 12 and the side edges 11 of the first opening 8 are both inserted into the slot 17. The connector 5 and the protective cover 3 are fixed together by screws.

[0042] By inserting the top edge 12 and the side edges 11 of the first opening 8 between the two protruding edges 16, dust inside the protective cover 3 can be prevented from being discharged from the gap between the connecting seat 5 and the first opening 8 during vacuuming, and the connection between the connecting seat 5 and the protective cover 3 can be made more stable and less prone to shaking.

[0043] The protruding edge 16 surrounds the two side walls and the top wall of the connecting seat 5, and the protruding edge 16 is U-shaped.

[0044] The outer protruding edge 16 on the outside of the protective cover 3 is provided with a mounting protrusion 15 for connecting with a screw. The protective cover 3 is provided with a connecting hole 9 for the screw to pass through. The outer protruding edge 16 on the inside of the protective cover 3 is provided with a clearance notch 26 for avoiding the screw. The clearance notch 26 is opposite to the mounting protrusion 15. During installation, the connecting seat 5 is inserted into the first opening 8 so that the mounting protrusion 15 is opposite to the connecting hole 9. The screw passes through the connecting hole 9 from inside the protective cover 3 and connects with the mounting protrusion 15 to fix the connecting seat 5 on the outside of the protective cover 3. The head of the screw is in the clearance notch 26.

[0045] Preferably, there are two mounting protrusions 15, which are distributed on the outer protrusion 16 at the top of the connecting seat 5. The protective cover 3 is provided with connecting holes 9 at the position above the first opening 8, which are respectively opposite to the two mounting protrusions 15.

[0046] Figures 7-10 As shown, the structure of the first channel 18 with narrow opening is as follows: the width and height of the first channel 18 gradually decrease from one end to the other end. The lower edge of the large opening 19 of the first channel 18 is located near the bottom of the connecting seat 5. The inner bottom surface of the first channel 18 slopes upward from the large opening 19 end to the small opening 25 end.

[0047] The lower edge of the large opening 19 of the first channel 18 is positioned near the bottom of the connecting seat 5, which is located at the bottom of the protective cover 3. This allows the first opening 8 to be closer to the position where the wire drawing wheel 4 contacts the processing surface, thereby achieving a better dust collection effect.

[0048] The aforementioned connecting seat 5 includes a seat body 13 and a connector 14 disposed on one side of the seat body 13 for detachable connection with a vacuum cleaner. A first channel 18 is disposed on the seat body 13, with the large opening 19 of the first channel 18 located on the side of the seat body 13 away from the connector 14, and the small opening 25 of the first channel 18 located on the side of the seat body 13 connected to the connector 14. The dust outlet channel 7 includes a second channel 21 disposed within the connector 14. The inlet of the second channel 21 is connected to the small opening 25 of the first channel 18, and the outlet of the second channel 21 is located on the side of the connector 14 away from the seat body 13. A step 20 is provided between the seat body 13 and the connector 14. This structure allows the dust outlet channel 7 to pass through the front and rear sides of the first connecting seat 5.

[0049] Figure 11As shown, the connector 14 is detachably connected to the dust extraction sleeve 24, and then the dust extraction pipe of the dust extraction device is connected to the outside of the dust extraction sleeve 24; or the connector 14 is detachably connected to the dust extraction sleeve 24, the dust extraction device is a dust extraction fan, the dust extraction sleeve 24 is connected to the air inlet of the dust extraction fan, and the air outlet of the dust extraction fan can be connected to components such as a dust collection bag. When the dust extraction fan is started, an airflow is generated that flows from inside the protective cover 3 through the dust extraction channel 7 and inside the dust extraction sleeve 24, then enters the dust extraction fan through the air inlet, and then exits from the air outlet. This airflow draws the dust generated by the drawing wheel 4 into the dust extraction channel 7. Preferably, one end of the dust extraction sleeve 24 is fitted onto the connector 14 and threadedly connected to the connector 14, and the step 20 serves as the abutment part on one side of the dust extraction sleeve 24.

[0050] A dust-blocking component 6 is installed at the bottom of the seat 13 near the large opening 19. The dust-blocking component 6 can prevent dust from overflowing to the rear.

[0051] Preferably, the dust-proof component 6 is a soft rubber strip or bristles.

[0052] Figure 6 As shown, the bottom of the base 13 is provided with a sliding groove 22, and the dust-proof component 6 is provided with a slider 23. The slider 23 is inserted into the sliding groove 22 and fixed, and the slider 23 can be pulled out from the sliding groove 22. Preferably, the sliding groove 22 is a T-shaped groove, the slider 23 is inserted into the sliding groove 22 and the dust-proof component 6 extends out from the groove opening at the bottom of the sliding groove 22.

[0053] The above describes the handheld wire drawing machine with built-in dust collection provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A handheld wire drawing machine with built-in dust collection, comprising a housing, a wire drawing wheel, a drive motor, and a protective cover, wherein the drive motor is installed inside the housing, the wire drawing wheel is connected to the drive motor for transmission, and the protective cover partially covers the outside of the wire drawing wheel, characterized in that, A first opening is provided on one side surface of the protective cover. A connecting seat for connecting to a dust collection device is detachably installed on the first opening. A dust discharge channel is provided inside the connecting seat for sucking up debris and dust generated by the wire drawing wheel operation.

2. The handheld wire drawing machine with built-in dust collection according to claim 1, characterized in that, The dust discharge channel includes a first channel, which gradually narrows from one end to the other. The larger opening at one end of the first channel is located on the side where the connecting seat connects to the first opening, and the larger opening is opposite to the outer peripheral surface of the drawing wheel used for operation.

3. The handheld wire drawing machine with built-in dust collection according to claim 2, characterized in that, The connecting seat includes a seat body and a connector disposed on one side of the seat body for detachable connection with a vacuum cleaner. The first channel is disposed on the seat body, with the larger opening of the first channel located on the side of the seat body away from the connector, and the smaller opening of the first channel located on the side of the seat body connected to the connector. The dust outlet channel includes a second channel disposed within the connector, with the inlet of the second channel connected to the smaller opening of the first channel, and the outlet of the second channel located on the side of the connector away from the seat body. A step is provided between the seat body and the connector.

4. The handheld wire drawing machine with built-in dust collection according to claim 2 or 3, characterized in that, The first opening extends downward and penetrates the lower edge of the protective cover to form an insertion port for the connector to enter at the lower edge of the protective cover. The outer side wall of the connector with the first channel has two protruding edges spaced back and forth. The protruding edges surround the perimeter of the large opening, and a slot is formed between the two protruding edges. The connector enters the first opening upward from the insertion port. The top edge and the side edges of the first opening are inserted into the slot. The connector and the protective cover are fixed together by screws.

5. The handheld wire drawing machine with built-in dust collection according to claim 4, characterized in that, The outer convex edge of the protective cover is provided with a mounting protrusion for connecting with a screw. The protective cover is provided with a connecting hole for the screw to pass through. The outer convex edge of the inner side of the protective cover is provided with a clearance notch for avoiding the screw. The clearance notch is opposite to the mounting protrusion.

6. The handheld wire drawing machine with built-in dust collection according to claim 3, characterized in that, A dust-proof component is installed at the bottom of the seat near the large opening.

7. The handheld wire drawing machine with built-in dust collection according to claim 6, characterized in that, The bottom of the base is provided with a sliding groove, and the dustproof component is provided with a slider, which is inserted into the sliding groove for fixation.

8. The handheld wire drawing machine with built-in dust collection according to claim 6, characterized in that, The dust-blocking component is a soft rubber strip or brush bristles.

9. The handheld wire drawing machine with built-in dust collection according to claim 2 or 3, characterized in that, The ratio of the width of the first channel to the width of the drawing wheel is greater than or equal to 0.75 and less than or equal to 1.

10. The handheld wire drawing machine with built-in dust collection according to claim 4, characterized in that, The width and height of the first channel gradually decrease from one end to the other. The lower edge of the larger opening of the first channel is located near the bottom of the connecting seat, and the inner bottom surface of the first channel slopes upward from the larger opening to the smaller opening.

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