Trimming and smoothing treatment device for plastic electric appliance shell processing

Abstract

The utility model relates to the technical field of electric appliance shell processing, and discloses a trimming and smoothing processing device for plastic electric appliance shell processing, which comprises a base, the upper surface of the base is fixedly connected with two support frames which are mutually symmetrical in position, the surfaces of the two support frames are respectively and rotatably connected with a first wind-up roller and a second wind-up roller, and the first wind-up roller and the second wind-up roller are fixedly connected with the base. Abrasive paper is wound on the surface of the first winding roller and the surface of the second winding roller, the first winding roller is used for winding unused abrasive paper, and the second winding roller is used for winding the polished abrasive paper. By arranging the first winding roller and the second winding roller, the first winding roller and the second winding roller can be used for winding and unwinding abrasive paper for grinding, so that the abrasive paper part which is ground to be flat is rapidly wound, meanwhile, new abrasive paper is moved to the position below an electric appliance shell, the purpose of rapidly replacing the abrasive paper is achieved, manual replacement is not needed, and the production efficiency is improved. And the processing efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliance shell processing, and more specifically to a trimming and smoothing device for processing plastic electrical appliance shells. Background Art

[0002] Some electrical appliance shells are made of plastic, and after the plastic shell is formed, burrs and uneven parts will be generated at the cut edges of its bottom. Therefore, it is necessary to polish the burrs or cut edges on the shell surface to make it smoother and flatter.

[0003] However, when the traditional grinding equipment grinds the plastic shell, when the grinding wheel or grinding block needs to be replaced, the grinding equipment needs to be shut down, and then the grinding consumables need to be disassembled and installed manually, which is not only cumbersome and time-consuming, but also affects the processing efficiency. Therefore, it is necessary to improve this problem existing in the existing grinding equipment. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a trimming and smoothing device for processing plastic electrical appliance shells, which has the advantages of automatically replacing and cleaning the grinding sandpaper, etc., so as to solve the problems existing in the above-mentioned background art.

[0005] The utility model provides the following technical solutions: a trimming and smoothing device for processing plastic electrical appliance shells, including a base, two symmetrically arranged support frames are fixedly connected to the upper surface of the base, a first winding roller and a second winding roller are respectively rotatably connected to the surfaces of the two support frames, sandpaper is wound around the surfaces of the first winding roller and the second winding roller, the first winding roller is used for winding the unused sandpaper, and the second winding roller is used for winding the polished sandpaper;

[0006] An installation frame is fixedly connected to the upper surface of the base, an electric telescopic rod is fixedly arranged on the upper surface of the installation frame, a rotating motor is fixedly connected to the telescopic rod of the electric telescopic rod, and a clamping mechanism is fixedly connected to the output shaft of the rotating motor, and the clamping mechanism is used for clamping and fixing the plastic electrical appliance shell;

[0007] A driving box is fixedly connected to the front of one of the support frames, a winding motor is fixedly installed on the outside of the driving box, the output shaft of the winding motor extends into the driving box and is fixedly connected to a worm, the rotating shaft of the second winding roller extends into the driving box and is fixedly connected to a worm gear, the position of the worm gear corresponds to that of the worm, and the worm meshes with the worm gear.

[0008] Further, a cleaning component is provided at the top of the support frame. The cleaning component includes a strip-shaped fixed plate fixedly connected to the upper surface of the support frame. Threaded holes are formed in the upper surface of the strip-shaped fixed plate. An adjusting screw rod is threadedly connected to the inner wall of the threaded hole. The bottom end of the adjusting screw rod is rotatably connected to a strip-shaped brush, and the lower surface of the strip-shaped brush abuts against the upper surface of the sandpaper.

[0009] Further, two limit guide plates are fixedly connected to the upper surface of the strip-shaped brush. Two rectangular guide holes are formed in the surface of the strip-shaped fixed plate. The size of the rectangular guide holes matches that of the limit guide plates. The strip-shaped fixed plate is slidably connected to the surface of the limit guide plates through the rectangular guide holes.

[0010] Further, the clamping mechanism includes a limit shell fixedly connected to the end of the output shaft of the rotating motor. A limit circular block is fixedly connected to the inner wall of the limit shell. Three positioning screw rods are rotatably connected to the surface of the limit circular block. Clamping plates are threadedly connected to the surfaces of the positioning screw rods.

[0011] Further, the three positioning screw rods are evenly distributed in a triangular array on the surface of the limit circular block. The ends of the positioning screw rods away from the limit circular block extend to the outside of the limit shell, and adjusting knobs are fixedly connected to the ends of the positioning screw rods.

[0012] Further, a rubber anti-slip pad is fixedly connected to the surface of the clamping plate. A number of anti-slip grooves are formed in the surface of the rubber anti-slip pad. The upper surface of the clamping plate is slidably connected to the inner top wall of the limit shell.

[0013] Further, four inclined brackets are fixedly connected between the two support frames. The top ends of the four inclined brackets are fixedly connected to a support bottom plate. The upper surface of the support bottom plate abuts against the lower surface of the sandpaper.

[0014] Further, a ratchet mechanism is provided on the surface of the rotating shaft of the first winding roller. The ratchet mechanism includes a ratchet and a pawl, and the ratchet mechanism is used for one-way anti-reversal of the first winding roller.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. By providing the first winding roller and the second winding roller, the present utility model can wind and unwind the sandpaper for grinding by using the first winding roller and the second winding roller, so as to quickly wind the ground part of the sandpaper, and at the same time move the new sandpaper under the electrical appliance shell, thereby achieving the purpose of quickly replacing the sandpaper without manual replacement, which is beneficial to improving the processing efficiency.

[0017] 2. The utility model is provided with a supporting bottom plate below the sandpaper, which can support and limit the back surface of the sandpaper by using the supporting bottom plate, so that a certain supporting force is maintained on the surface of the sandpaper, thereby facilitating the trimming and grinding of the electrical shell by using the sandpaper.

[0018] 3. The utility model is provided with a cleaning component, which can drive a strip brush to contact the surface of the sandpaper by using an adjusting screw rod. Thus, during the process of winding and unwinding and moving the sandpaper, the strip brush can clean the grinding waste residues remaining on the surface of the sandpaper, achieving the purpose of automatically cleaning the sandpaper.

[0019] 4. The utility model is provided with a clamping mechanism, which can clamp and fix a workpiece by using three clamping plates of the clamping mechanism, and can separately position and adjust the three clamping plates by using three positioning screws respectively. It is applicable to clamping and limiting workpieces with irregular shapes, improving the applicable range, and at the same time improving the stability of the workpiece during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic front view of the three-dimensional structure of the utility model;

[0021] Figure 2 is a schematic enlarged partial structure view of the utility model;

[0022] Figure 3 is a schematic side view of the three-dimensional structure of the utility model;

[0023] Figure 4 is a schematic internal structure view of the clamping mechanism of the utility model;

[0024] Figure 5 is a schematic internal structure view of the driving box of the utility model.

[0025] Reference numerals are: 1, clamping mechanism; 2, support frame; 3, first winding roller; 4, second winding roller; 5, sandpaper; 6, cleaning component; 7, mounting rack; 8, electric telescopic rod; 9, rotating motor; 11, driving box; 12, winding motor; 13, worm; 14, worm gear; 15, inclined bracket; 16, supporting bottom plate; 17, ratchet mechanism;

[0026] 101, limiting shell; 102, limiting round block; 103, positioning screw; 104, clamping plate; 105, adjusting knob; 106, rubber anti-slip pad;

[0027] 601, strip fixing plate; 602, adjusting screw rod; 603, strip brush; 604, limiting guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the present utility model. In addition, the forms of each structure described in the following embodiments are merely examples, and a trimming and smoothing treatment device for processing a plastic electrical appliance housing involved in the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0029] Referring to Figures 1-5 , the present utility model provides a trimming and smoothing treatment device for processing a plastic electrical appliance housing, including a base. Two symmetrically positioned support frames 2 are fixedly connected to the upper surface of the base. A first winding roller 3 and a second winding roller 4 are respectively rotatably connected to the surfaces of the two support frames 2. Sandpaper 5 is wound around the surfaces of both the first winding roller 3 and the second winding roller 4. The first winding roller 3 is used to wind the unused sandpaper 5, and the second winding roller 4 is used to wind the sandpaper 5 after grinding.

[0030] Through the above technical solutions, four inclined brackets 15 are fixedly connected between the two support frames 2. The tops of the four inclined brackets 15 are fixedly connected to a support bottom plate 16, and the upper surface of the support bottom plate 16 abuts against the lower surface of the sandpaper 5.

[0031] It is worth noting that by providing the support bottom plate 16 below the sandpaper 5, the back surface of the sandpaper 5 can be supported and limited by the support bottom plate 16, so that a certain supporting force is maintained on the surface of the sandpaper 5, thereby facilitating the trimming and grinding of the electrical housing using the sandpaper 5.

[0032] Through the above technical solutions, a cleaning assembly 6 is provided at the top of the support frame 2. The cleaning assembly 6 includes a strip-shaped fixing plate 601 fixedly connected to the upper surface of the support frame 2. A threaded hole is provided on the upper surface of the strip-shaped fixing plate 601, and an adjusting screw rod 602 is threadedly connected to the inner wall of the threaded hole. The bottom end of the adjusting screw rod 602 is rotatably connected to a strip-shaped brush 603, and the lower surface of the strip-shaped brush 603 abuts against the upper surface of the sandpaper 5.

[0033] Through the above technical solutions, two limiting guide plates 604 are fixedly connected to the upper surface of the strip-shaped brush 603. Two rectangular guide holes are provided on the surface of the strip-shaped fixing plate 601. The size of the rectangular guide holes matches that of the limiting guide plates 604, and the strip-shaped fixing plate 601 is slidably connected to the surface of the limiting guide plates 604 through the rectangular guide holes.

[0034] It should be noted that by providing a cleaning assembly 6 on the surface of the sandpaper 5, the adjusting screw rod 602 can be used to drive the strip brush 603 to contact the surface of the sandpaper 5. When there are residual waste materials on the surface of the sandpaper 5 after grinding, the first winding roller 3 and the second winding roller 4 are used to drive the sandpaper 5 to move. During the process of winding and unwinding the sandpaper 5, the strip brush 603 can be used to clean the residual grinding waste materials on the surface of the sandpaper 5, achieving the purpose of automatically cleaning the sandpaper 5.

[0035] Through the above technical solution, an installation frame 7 is fixedly connected to the upper surface of the base. An electric telescopic rod 8 is fixedly arranged on the upper surface of the installation frame 7. The telescopic rod of the electric telescopic rod 8 is fixedly connected to a rotary motor 9. The output shaft of the rotary motor 9 is fixedly connected to a clamping mechanism 1, and the clamping mechanism 1 is used for clamping and fixing a plastic electrical appliance housing.

[0036] Through the above technical solution, the clamping mechanism 1 includes a limiting shell 101 fixedly connected to the end of the output shaft of the rotary motor 9. A limiting circular block 102 is fixedly connected to the inner wall of the limiting shell 101. Three positioning screw rods 103 are rotatably connected to the surface of the limiting circular block 102, and a clamping plate 104 is threadedly connected to the surface of the positioning screw rod 103.

[0037] Through the above technical solution, a rubber anti-slip pad 106 is fixedly connected to the surface of the clamping plate 104. A number of anti-slip grooves are formed on the surface of the rubber anti-slip pad 106. The upper surface of the clamping plate 104 is slidably connected to the inner top wall of the limiting shell 101.

[0038] Through the above technical solution, the three positioning screw rods 103 are evenly distributed on the surface of the limiting circular block 102 in a triangular array. The end of the positioning screw rod 103 away from the limiting circular block 102 extends to the outside of the limiting shell 101, and an adjusting knob 105 is fixedly connected to the end of the positioning screw rod 103.

[0039] It should be noted that by providing the clamping mechanism 1, when grinding a workpiece, the three clamping plates 104 of the clamping mechanism 1 can be used to clamp and fix the workpiece, and the three positioning screw rods 103 can be used to separately position and adjust the three clamping plates 104, which is suitable for clamping and limiting workpieces with irregular shapes, improving the scope of application, and at the same time improving the stability of the workpiece during the grinding process.

[0040] Through the above technical solution, a drive box 11 is fixedly connected to the front surface of one of the support frames 2. A winding motor 12 is fixedly installed on the outside of the drive box 11. The output shaft of the winding motor 12 extends into the drive box 11 and is fixedly connected to a worm 13. The rotating shaft of the second winding roller 4 extends into the drive box 11 and is fixedly connected to a worm gear 14. The position of the worm gear 14 corresponds to that of the worm 13, and the worm 13 meshes with the worm gear 14.

[0041] It should be noted that by setting the first winding roller 3 and the second winding roller 4, the first winding roller 3 and the second winding roller 4 can be used to wind and unwind the sandpaper 5 for grinding. When the sandpaper 5 at the current position is worn out and cannot be used, the winding motor 12 is driven to rotate the worm 13, which in turn drives the worm gear 14 and the second winding roller 4 to rotate. Then, the second winding roller 4 winds up the used sandpaper 5, and at the same time, a new sandpaper 5 is brought out from the surface of the first winding roller 3, realizing the rapid winding of the used sandpaper 5, achieving the purpose of quickly replacing the sandpaper 5, and the replacement is automatic, improving the processing efficiency.

[0042] A ratchet mechanism 17 is provided on the surface of the rotating shaft of the first winding roller 3. The ratchet mechanism 17 includes a ratchet and a pawl. The ratchet mechanism 17 is used to prevent the first winding roller 3 from reversing unidirectionally. Through the above technical solution, when cleaning the sandpaper 5, the pawl of the ratchet mechanism 17 can be separated from the ratchet, so as to facilitate the movement and cleaning of the sandpaper 5.

[0043] Working principle: First, place the plastic electrical appliance shell under the limiting shell 101, and then rotate the three adjusting knobs 105 respectively to drive the positioning screw 103 to rotate, which in turn drives the three clamping plates 104 to clamp and fix the electrical appliance shell. Then, start the electric telescopic rod 8 to drive the limiting shell 101 to move downward, so that the bottom edge of the electrical appliance shell contacts the sandpaper 5. Then, use the rotating motor 9 to drive the limiting shell 101 to rotate, which in turn drives the electrical appliance shell to rotate, and then use the sandpaper 5 to grind and trim the bottom edge of the shell.

[0044] Finally, it should be noted that in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A trimming and smoothing device for processing plastic electrical appliance housing, comprising a base, characterized in that: The upper surface of the base is fixedly connected to two support frames (2) whose positions are symmetrical to each other. The surfaces of the two support frames (2) are rotatably connected to a first winding roller (3) and a second winding roller (4). Sandpaper (5) is wound around the surfaces of the first winding roller (3) and the second winding roller (4). The first winding roller (3) is used to wind up unused sandpaper (5), and the second winding roller (4) is used to wind up sandpaper (5) after grinding. The upper surface of the base is fixedly connected to a mounting frame (7), the upper surface of the mounting frame (7) is fixedly provided with an electric telescopic rod (8), the telescopic rod of the electric telescopic rod (8) is fixedly connected to a rotating motor (9), the output shaft of the rotating motor (9) is fixedly connected to a clamping mechanism (1), and the clamping mechanism (1) is used to clamp and fix the plastic electrical appliance housing; A driving box (11) is fixedly connected to the front of one of the support frames (2), a winding motor (12) is fixedly installed on the outer side of the driving box (11), the output shaft of the winding motor (12) extends to the interior of the driving box (11) and is fixedly connected to a worm (13), the rotating shaft of the second winding roller (4) extends to the interior of the driving box (11) and is fixedly connected to a worm wheel (14), the position of the worm wheel (14) corresponds to the worm wheel (13), and the worm wheel (13) is meshed with the worm wheel (14).

2. The device for trimming and smoothing plastic electrical appliance housing according to claim 1, characterized in that: A cleaning assembly (6) is arranged on the top of the support frame (2), and the cleaning assembly (6) comprises a strip-shaped fixing plate (601) fixedly connected to the upper surface of the support frame (2), a threaded hole is provided on the upper surface of the strip-shaped fixing plate (601), an adjusting screw rod (602) is threadedly connected to the inner wall of the threaded hole, a strip-shaped brush (603) is rotatably connected to the bottom end of the adjusting screw rod (602), and the lower surface of the strip-shaped brush (603) overlaps the upper surface of the sandpaper (5).

3. The device for trimming and smoothing plastic electrical appliance housing according to claim 2, characterized in that: The upper surface of the strip brush (603) is fixedly connected to two limiting guide plates (604), the surface of the strip fixing plate (601) is provided with two rectangular guide holes, the size of the rectangular guide holes matches that of the limiting guide plates (604), and the strip fixing plate (601) is slidably connected to the surface of the limiting guide plates (604) via the rectangular guide holes.

4. The device for trimming and smoothing plastic electrical appliance housing according to claim 1, characterized in that: The clamping mechanism (1) comprises a limit shell (101) fixedly connected to the end of the output shaft of the rotating motor (9), the inner wall of the limit shell (101) is fixedly connected to a limit circular block (102), the surface of the limit circular block (102) is rotatably connected to three positioning screws (103), and the surface of the positioning screw (103) is threadedly connected to a clamping plate (104).

5. The device for trimming and smoothing plastic electrical appliance housing according to claim 4, characterized in that: The three positioning screws (103) are evenly distributed on the surface of the limiting circular block (102) in a triangular array, and one end of the positioning screw (103) away from the limiting circular block (102) extends to the outside of the limiting shell (101), and the end of the positioning screw (103) is fixedly connected to the adjusting knob (105).

6. The device for trimming and smoothing plastic electrical appliance housing according to claim 4, characterized in that: A rubber anti-skid pad (106) is fixedly connected to the surface of the clamping plate (104), and a plurality of anti-skid grooves are provided on the surface of the rubber anti-skid pad (106). The upper surface of the clamping plate (104) is slidably connected to the inner top wall of the limiting shell (101).

7. The device for trimming and smoothing plastic electrical appliance housing according to claim 1, characterized in that: Four oblique brackets (15) are fixedly connected between the two support frames (2), and the top ends of the four oblique brackets (15) are fixedly connected to a supporting base plate (16), and the upper surface of the supporting base plate (16) overlaps the lower surface of the sandpaper (5).

8. The device for trimming and smoothing plastic electrical appliance housing according to claim 1, characterized in that: A ratchet mechanism (17) is provided on the rotating shaft surface of the first winding roller (3), the ratchet mechanism (17) comprising a ratchet wheel and a pawl, and the ratchet mechanism (17) is used to perform one-way anti-reversal on the first winding roller (3).

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