Deburring device for swivel chair plastic chassis production

Abstract

The invention discloses a deburring device for swivel chair plastic chassis production, and belongs to the technical field of deburring. The rack is vertically and fixedly connected with a supporting rod, a fixing mechanism used for fixing the plastic chassis of the swivel chair is arranged at the bottom of the supporting rod, the side, close to the fixing mechanism, of the supporting rod is rotationally connected with an upper scraper, and the upper scraper rotates to remove burrs on the upper surface of the plastic chassis of the swivel chair; a base is arranged at the bottom in the rack, a supporting table is arranged in the rack, the top of the supporting table is obliquely arranged, a sliding groove is formed in the top of the supporting table in the radial direction, the lower scraper is slidably connected with the sliding groove through a first connecting rod, and a first reset spring is fixedly connected into the sliding groove. A rotary table capable of rotating is arranged above the supporting table, and an arc-shaped groove allowing the first connecting rod to slide is formed in the rotary table. The device has the effects of improving the production efficiency and the cleanliness.

Description

Technical Field

[0001] The invention relates to the technical field of deburring, in particular to a deburring device for producing a plastic chassis of a swivel chair. Background Art

[0002] The plastic chassis of a swivel chair is the bottom support structure of an office chair or a home swivel chair. Compared with a metal chassis, a plastic chassis is lightweight, corrosion-resistant, and flexible to mold. Common designs include a five-claw chassis, which can provide better support and flexibility and is suitable for use in office and home environments. During the injection molding of the plastic chassis of a swivel chair, if the mold design is unreasonable or the temperature is improperly controlled, burrs will form at the buckling edge of the injection mold, that is, at the cavity or bottom of the plastic chassis. The burrs affect safety, appearance, and performance, so they need to be removed.

[0003] Referring to the Chinese patent document with the authorization announcement number CN211053306U, it discloses a swivel chair chassis deburring device, including a base and a bracket, a connecting rod is welded and fixed on the bracket, a clamping mechanism is rotatably installed on one end of the connecting rod, a first motor is installed on the base, a support table is welded and fixed on one end of the first motor, an electric push rod is installed on the support table, an electric slide is installed on the side of the bracket, a first electric hydraulic rod is installed on the sliding block of the electric slide, a fixed plate is welded and fixed on one end of the first electric hydraulic rod, a second motor is installed on the fixed plate through an adjustment mechanism, and a grinding wheel is installed on one end of the second motor. The patent first clamps and fixes the circular swivel chair chassis, and then drives the grinding wheel through the second motor to adjust the grinding angle, which is convenient for workers to operate.

[0004] In view of the above-mentioned related technology, the burrs on the chassis of the swivel chair are removed by driving the grinding wheel with the second motor, but referring to Figure 1 In the actual production process, when deburring the chassis of the five-claw swivel chair, the chassis has five supporting edges and the lower surface of each supporting edge is inclined. It is necessary to drive the grinding wheel to move along the length direction of the supporting edge and move in the vertical direction at the same time to adapt to the shape of the lower surface of the supporting edge. After deburring one supporting edge, the fastening mechanism needs to loosen the swivel chair chassis, and then rotate the swivel chair chassis and fix it again to grind and deburr other supporting edges. This process is relatively cumbersome. Summary of the invention

[0005] In view of this, the present invention provides a deburring device for the production of a plastic chassis of a swivel chair, aiming to solve the problem that the operation of removing burrs from the plastic chassis of a five-claw swivel chair is relatively complicated.

[0006] In order to solve the above technical problems, the present invention provides a deburring device for the production of a plastic chassis of a swivel chair, comprising a frame; the frame is vertically fixedly connected to a support rod, and a fixing mechanism for fixing the plastic chassis of the swivel chair is arranged at the bottom of the support rod, and an upper scraper is rotatably connected to the side of the support rod close to the fixing mechanism, and the upper scraper is rotated to remove burrs from the upper surface of the plastic chassis of the swivel chair; a lower scraper is rotated to remove burrs from the bottom of the plastic chassis of the swivel chair; a base is arranged at the bottom of the frame, a support platform is arranged inside the frame, the top of the support platform is inclined, a slide groove is radially provided on the top of the support platform, the lower scraper is slidably connected to the slide groove through a first connecting rod, a first return spring is fixedly connected in the slide groove, and a rotatable turntable is arranged above the support table, and an arc groove for the first connecting rod to slide is provided on the turntable.

[0007] By adopting the above technical scheme, when removing burrs from the plastic chassis of the swivel chair, the position of the plastic chassis of the swivel chair is first fixed by a fixing mechanism, so that the upper scraper rotates to remove the burrs on the top of the plastic chassis of the swivel chair, and then the lower scraper is driven to move up and contact the bottom of the plastic chassis of the swivel chair by the adjusting mechanism. The rotation of the turntable causes the first connecting rod to slide in the arc groove. The sliding of the first connecting rod drives the slider to slide in the slide groove and drives the upper scraper to move, thereby removing the burrs on the bottom of the plastic chassis of the swivel chair, which is beneficial to improving the production efficiency of the plastic chassis of the swivel chair. The cleaned burrs fall onto the turntable. As the turntable rotates, the burrs are facilitated to fall off, thereby improving the cleanliness of the device.

[0008] Optionally, the fixing mechanism includes a support plate horizontally slidably connected to the bottom of the support rod, the support rod is configured as a hollow rod, a blowing device is connected to the top of the support rod, and a second return spring is provided on the support plate.

[0009] By adopting the above technical solution, the support rod is inserted into the insert tube of the plastic chassis of the swivel chair, and then air is filled into the support rod. Under the action of the gas, the support plate is driven to move in a direction away from the central axis of the support rod, thereby supporting the plastic chassis of the swivel chair. The plastic chassis of the swivel chair can be fixed simply and conveniently through the movement of the support plate, and the swivel chair chassis with insert tubes of different outer diameters can be clamped and fixed.

[0010] Optionally, a first rotation source is fixedly installed on one side of the support rod close to the upper scraper, a driving shaft of the first rotation source is fixedly connected to a first bevel gear, the first bevel gear is meshed with a second bevel gear rotatably mounted on the support rod, and the upper scraper is fixedly connected to the bottom of the second bevel gear.

[0011] By adopting the above technical solution, the first bevel gear cooperates with the second bevel gear to rotate the upper scraper to remove burrs, thereby reducing the occupied space and having higher transmission efficiency.

[0012] Optionally, a second rotation source is fixedly installed on the top of the frame, the driving shaft of the second rotation source is fixedly connected to a third bevel gear, the third bevel gear is meshed with a fourth bevel gear, the middle part of the fourth bevel gear is fixedly connected to a rotating tube rotatably sleeved on the outside of the support rod, and the bottom of the rotating tube is fixedly connected to a second connecting rod fixedly connected to the turntable.

[0013] By adopting the above technical solution, the third bevel gear cooperates with the fourth bevel gear to rotate the upper scraper to remove burrs, thereby reducing the occupied space and having higher transmission efficiency.

[0014] Optionally, the turntable is configured to be high in the middle and low at the edges.

[0015] By adopting the above technical solution, the arrangement of the high middle and low edge of the turntable cooperates with the rotation of the turntable to facilitate the falling of burrs on the turntable, thereby improving the cleanliness of the device.

[0016] Optionally, a base is fixedly provided at the lower end of the frame, and an adjustment mechanism is provided on the base for driving the lower scraper to move in the vertical direction. Optionally, the adjustment mechanism includes a linear driver fixedly mounted on the top of the base, a driving shaft of the linear driver is fixedly connected to a support plate, and the support platform is fixedly connected to an upper surface of the support plate.

[0017] By adopting the above technical solution, the linear drive drives the support plate to move in the vertical direction, which is convenient for loading and unloading the plastic chassis of the swivel chair, thereby helping to improve work efficiency.

[0018] Optionally, the inclination angle of the top of the support platform matches the inclination angle of the claw frame of the plastic chassis of the swivel chair.

[0019] By adopting the above technical solution, the burrs of the plastic chassis claw frame of the swivel chair with different inclination angles can be removed by adjusting the inclination angle of the top of the support platform.

[0020] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects: 1. The position of the plastic chassis of the swivel chair is fixed by a fixing mechanism, so that the upper scraper rotates to remove the burrs on the top of the plastic chassis of the swivel chair, and then the lower scraper is driven to move up and contact the bottom of the plastic chassis of the swivel chair by the adjusting mechanism. The turntable rotates to make the first connecting rod slide in the arc groove. The sliding of the first connecting rod drives the slider to slide in the slide groove and drives the upper scraper to move, thereby removing the burrs on the bottom of the plastic chassis of the swivel chair, which is beneficial to improve the production efficiency of the plastic chassis of the swivel chair. At the same time, the cleaned burrs fall onto the turntable. As the turntable rotates, the burrs are conducive to falling off, thereby improving the cleanliness of the device; 2. By changing the inclination angle of the support platform, the plastic chassis of swivel chairs of different sizes can be adapted, which is beneficial to improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the plastic chassis of the swivel chair; Figure 2 It is a structural schematic diagram of an embodiment of the present invention; Figure 3 This is a schematic structural diagram of the first rotation source and the upper scraper according to an embodiment of the present invention; Figure 4 This is a schematic structural diagram of a lower scraper and a support platform according to an embodiment of the present invention; Figure 5 It is a schematic structural diagram of a second rotation source and a second connecting rod according to an embodiment of the present invention; Figure 6 Schematic diagram of the structure of the support plate according to an embodiment of the present invention.

[0022] Explanation of the accompanying drawings: 1. frame; 11. support rod; 2. fixing mechanism; 21. support plate; 22. second return spring; 3. upper scraper; 31. first rotation source; 32. first bevel gear; 33. second bevel gear; 4. lower scraper; 5. base; 6. adjustment mechanism; 61. linear drive; 62. support plate; 7. first connecting rod; 71. slider; 72. support table; 73. slide groove; 74. first return spring; 75. turntable; 76. arc groove; 8. second rotation source; 81. third bevel gear; 82. fourth bevel gear; 83. rotating tube; 84. second connecting rod. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 2-Figure 6 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0024] Reference Figure 2 , Figure 3 and Figure 4A deburring device for producing a plastic chassis of a swivel chair comprises a frame 1 erected on a horizontal plane, a vertically arranged support rod 11 is fixedly connected to the upper part of the frame 1, a fixing mechanism 2 for fixing the chassis of the plastic swivel chair is arranged at the bottom of the support rod 11, an upper scraper 3 is rotatably connected to the side of the support rod 11 close to the fixing mechanism 2, a lower scraper 4 for removing burrs from the bottom of the plastic chassis of the swivel chair is arranged below the support rod 11, a base 5 placed on a horizontal plane is arranged at the bottom of the frame 1, an adjusting mechanism 6 for driving the lower scraper 4 to move in a vertical direction is arranged on the base 5, a vertically arranged first connecting rod 7 is fixedly connected to the bottom of the lower scraper 4, and the adjusting mechanism 6 is connected to A support platform 72 is arranged at an angle on the top, and the inclination angle of the top of the support platform 72 is the same as the inclination angle of the claw frame of the plastic chassis of the swivel chair. A slide groove 73 is provided on the top of the support platform 72. The bottom end of the first connecting rod 7 is slidably connected to the slide groove 73 through a slider 71. The initial position of the slider 71 is located at the highest point of the slide groove 73. A first return spring 74 is fixedly connected in the slide groove 73 to drive the slider 71 to return to the initial position. A rotatable turntable 75 is arranged above the support platform 72. The turntable 75 is set in a shape with a high middle and a low edge. An arc groove 76 for the first connecting rod 7 to slide is provided on the turntable 75. The rotation of the turntable 75 can drive the first connecting rod 7 to slide in the arc groove 76.

[0025] When it is necessary to remove burrs on the top and bottom of the swivel chair plastic chassis, first insert the bottom of the support rod 11 into the insert tube of the swivel chair plastic chassis, then fix the swivel chair plastic chassis through the fixing mechanism 2, and then rotate the upper scraper 3 to remove burrs on the upper surface of the swivel chair plastic chassis. The lower scraper 4 is driven to contact the bottom of the claw frame of the swivel chair plastic chassis through the adjustment mechanism 6, and the rotation of the turntable 75 drives the first connecting rod 7 to slide in the arc groove 76. The first connecting rod 7 slides in the arc groove 76 and drives the lower scraper 4 to move radially along the chassis to remove burrs. The setting of the first return spring 74 can drive the slider 71 to return to the initial position when the turntable 75 rotates. The setting of the upper scraper 3 and the lower scraper 4 can remove the burrs of the swivel chair plastic chassis, which is beneficial to improve the production efficiency of the swivel chair plastic chassis. The cleaned burrs splash and fall onto the turntable 75. The rotation of the turntable 75 can generate centrifugal force, which is beneficial to the burrs sliding off the surface of the turntable 75, thereby improving the cleanliness of the device.

[0026] Reference Figure 2 and Figure 3The fixing mechanism 2 includes a plurality of support plates 21 horizontally sliding at the bottom of the support rod 11. The support rod 11 is set as a hollow rod. The top of the support rod 11 is connected with a blowing device, such as an air compressor, an air pump, etc. The support plate 21 is provided with a second reset spring 22 for driving the support plate 21 to reset. The support rod 11 is inserted into the insertion tube of the plastic chassis of the swivel chair, and then the support rod 11 is filled with air. Under the action of the gas, the support plate 21 is driven to move in a direction away from the central axis of the support rod 11, thereby supporting the plastic chassis of the swivel chair. The plastic chassis of the swivel chair can be simply and conveniently fixed by the movement of the support plate 21, and the swivel chair chassis with insertion tubes of different outer diameters can be clamped and fixed.

[0027] Reference Figure 3 A first rotation source 31 is fixedly installed on one side of the support rod 11 close to the upper scraper 3, a driving shaft of the first rotation source 31 is fixedly connected to a first bevel gear 32, the first bevel gear 32 is meshed with a second bevel gear 33 rotatably sleeved on the support rod 11, and the upper scraper 3 is fixedly connected to the bottom of the second bevel gear 33. When the upper scraper 3 needs to be rotated, the first rotation source 31 is first started, and then the first rotation source 31 drives the first bevel gear 32 to rotate, the first bevel gear 32 drives the second bevel gear 33 to rotate, and the rotation of the second gear can drive the upper scraper 3 to rotate so as to remove the burrs.

[0028] Reference Figure 2 and Figure 5 A second rotating source 8 is fixedly installed on the top of the frame 1, and a third bevel gear 81 is fixedly connected to the driving shaft of the second rotating source 8, and the third bevel gear 81 is meshed with a fourth bevel gear 82, and a rotating tube 83 is fixedly connected to the middle of the fourth bevel gear 82, and the rotating tube 83 is rotatably sleeved on the outside of the support rod 11, and a second connecting rod 84 fixedly connected to the rotating disk 75 is fixedly connected to the bottom of the rotating tube 83. When the rotating disk 75 needs to be rotated, the second rotating source 8 is first started, and the second rotating source 8 drives the third bevel gear 81 to rotate, and the rotation of the third bevel gear 81 drives the rotating tube 83 to rotate, and the rotation of the rotating tube 83 drives the rotating disk to rotate through the second connecting rod 84, and the rotation of the rotating disk 75 can drive the second connecting rod 84 to move, so that the lower scraper 4 removes the burrs on the bottom of the plastic chassis of the swivel chair.

[0029] Reference Figure 2 and Figure 4 The adjustment mechanism 6 includes a linear actuator 61 fixedly mounted on the top of the base 5, a driving shaft of the linear actuator 61 is fixedly connected to a support plate 62, and a support platform 72 is fixedly connected to the top of the support plate 62. When the lower scraper 4 needs to be moved in the vertical direction, starting the linear actuator 61 can drive the support plate 62 to move in the vertical direction, and the movement of the support plate 62 can change the position of the lower scraper 4, which is beneficial to the loading and unloading of the plastic chassis of the swivel chair.

[0030] The implementation principle of a deburring device for a production sample of a plastic chassis of a swivel chair according to an embodiment of the present invention is as follows: first, the bottom of the support rod 11 is inserted into the insert tube of the plastic chassis of the swivel chair, and then air is filled into the support rod 11. Under the action of the gas, the support plate 21 is driven to move away from the central axis of the support rod 11 and support the plastic chassis of the swivel chair. The linear drive 61 is started to drive the support plate 62 to move upward so that the lower scraper 4 contacts the bottom of the plastic chassis of the swivel chair.

[0031] Start the first rotation source 31, and then the first rotation source 31 drives the first bevel gear 32 to rotate, the first bevel gear 32 drives the second bevel gear 33 to rotate, and the rotation of the second bevel gear 33 can drive the upper scraper 3 to rotate to remove the burrs; then start the second rotation source 8, the second rotation source 8 drives the third bevel gear 81 to rotate, the rotation of the third bevel gear 81 drives the rotating tube 83 to rotate, the rotation of the rotating tube 83 drives the rotating disk to rotate through the second connecting tube, the rotation of the rotating disk 75 can drive the second connecting rod 84 to move, and the movement of the second connecting rod 84 drives the lower scraper 4 to remove the burrs on the bottom of the plastic chassis of the swivel chair.

[0032] After the burrs are removed, the slider 71 returns to its initial position under the action of the first return spring 74, and drives the first connecting rod 7 and the lower scraper 4 to reset, then starts the linear drive 61 to move the lower scraper 4 downward, then releases the fixation of the swivel chair plastic chassis, and finally removes the swivel chair plastic chassis.

[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A deburring device for producing a plastic chassis of a swivel chair, comprising a frame (1), characterized in that: The frame (1) is vertically fixedly connected to a support rod (11); a fixing mechanism (2) for fixing the plastic chassis of the swivel chair is provided at the bottom of the support rod (11); an upper scraper (3) is rotatably connected to a side of the support rod (11) close to the fixing mechanism (2); the upper scraper (3) is rotated to remove burrs from the upper surface of the plastic chassis of the swivel chair; The lower scraper (4) is used to remove burrs from the bottom of the plastic chassis of the swivel chair by rotating. The bottom of the frame (1) is provided with a base (5). The frame (1) is provided with a support platform (72) inside. The top of the support platform (72) is inclined. The top of the support platform (72) is provided with a slide groove (73) in the radial direction. The lower scraper (4) is slidably connected to the slide groove (73) through a first connecting rod (7). A first return spring (74) is fixedly connected in the slide groove (73). A rotatable turntable (75) is provided above the support platform (72). The turntable (75) is provided with an arc groove (76) for the first connecting rod (7) to slide.

2. A deburring device for producing a swivel chair plastic chassis according to claim 1, characterized in that: The fixing mechanism (2) comprises a support plate (21) horizontally slidably connected to the bottom of the support rod (11); the support rod (11) is configured as a hollow rod; a blowing device is connected to the top of the support rod (11); and a second return spring (22) is provided on the support plate (21).

3. The deburring device for producing a swivel chair plastic chassis according to claim 1, characterized in that: A first rotation source (31) is fixedly mounted on one side of the support rod (11) close to the upper scraper (3); a driving shaft of the first rotation source (31) is fixedly connected to a first bevel gear (32); the first bevel gear (32) is meshed with a second bevel gear (33) rotatably sleeved on the support rod (11); and the upper scraper (3) is fixedly connected to the bottom of the second bevel gear (33).

4. The deburring device for producing a swivel chair plastic chassis according to claim 1, characterized in that: A second rotation source (8) is fixedly mounted on the top of the frame (1); a driving shaft of the second rotation source (8) is fixedly connected to a third bevel gear (81); the third bevel gear (81) is meshed with a fourth bevel gear (82); a rotating tube (83) rotatably sleeved on the outside of the support rod (11) is fixedly connected to the middle of the fourth bevel gear (82); and a second connecting rod (84) fixedly connected to the rotating disk (75) is fixedly connected to the bottom of the rotating tube (83).

5. The deburring device for producing a swivel chair plastic chassis according to claim 1, characterized in that: The rotating disk (75) is configured to be high in the middle and low at the edges.

6. The deburring device for producing a swivel chair plastic chassis according to claim 1, characterized in that: A base (5) is fixedly provided at the lower end of the frame (1), and an adjustment mechanism (6) is provided on the base (5) for driving the lower scraper (4) to move in a vertical direction.

7. A deburring device for producing a plastic chassis of a swivel chair according to claim 6, characterized in that: The adjustment mechanism (6) comprises a linear driver (61) fixedly mounted on the top of the base (5), the driving shaft of the linear driver (61) being fixedly connected to a support plate (62), and the support platform (72) being fixedly connected to the upper surface of the support plate (62).

8. The deburring device for producing a swivel chair plastic chassis according to claim 1, characterized in that: The inclination angle of the top of the support platform (72) matches the inclination angle of the claw frame of the plastic chassis of the swivel chair.

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