Environment-friendly surface roughening treatment device for automotive trim plastic part

Abstract

The environment-friendly surface roughening treatment device comprises a base, a roughening outer cylinder, a roughening inner cylinder, a cover plate assembly, a plastic part clamp and a clamp lifting driving mechanism, the outer side of the roughening inner cylinder is sleeved with the roughening outer cylinder, and an outer cylinder electrode plate set is arranged on the inner wall of the roughening outer cylinder; an inner cylinder electrode plate set is arranged on the outer wall of the coarsening inner cylinder, a lower end electrode plate set is arranged in the base, the cover plate assembly is arranged at the upper end of the coarsening outer cylinder, an upper end electrode plate set is arranged on the lower side of the cover plate assembly, and the plastic part clamp is arranged on the clamp lifting driving mechanism and driven by the clamp lifting driving mechanism to ascend and descend in the vertical direction. The upper side of the coarsening outer cylinder is provided with a first electrified superfine salt powder feeding port set, and the lower side of the coarsening outer cylinder is provided with a second electrified superfine salt powder feeding port set. The method is non-toxic and harmless, meets the environment-friendly requirement, and is simple in overall process operation and low in cost.

Description

Technical Field

[0001] The invention relates to a roughening treatment device, in particular to an environmentally friendly surface roughening treatment device for automobile interior plastic parts, belonging to roughening devices for automobile interior plastic parts. Background Art

[0002] After molding, automotive interior plastic parts usually need to be chrome-plated on the surface. Before the chrome plating process, the interior plastic parts also need to be cleaned, roughened and other pre-treatments to ensure the quality of the subsequent chrome plating process. The traditional roughening of plastic parts mainly adopts the roughening method of chemical immersion, which corrodes the surface of the plastic parts through chemicals to corrode a large number of micropores on the surface of the plastic parts. Traditional roughening chemicals are usually toxic and cannot be discharged directly. They need to be treated for environmental protection, and even after treatment, they will still cause damage to the environment. Therefore, the current mainstream roughening processes are studying environmentally friendly roughening agents to solve the problem that traditional roughening agents are not environmentally friendly. Although there are certain results, the cost is still high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an environmentally friendly surface roughening treatment device for automobile interior plastic parts, which is environmentally friendly and has low cost.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: An environmentally friendly surface roughening treatment device for automobile interior plastic parts comprises a base, a roughening outer cylinder, a roughening inner cylinder, a cover plate assembly, a plastic part fixture and a fixture lifting and driving mechanism, the roughening outer cylinder is sleeved on the outer side of the roughening inner cylinder and the lower ends of the roughening outer cylinder and the roughening inner cylinder are both fixed on the base, an outer cylinder electrode plate group is arranged on the inner wall of the roughening outer cylinder, an inner cylinder electrode plate group is arranged on the outer wall of the roughening inner cylinder, the outer cylinder electrode plate group and the inner cylinder electrode plate group are arranged oppositely and have opposite polarities, the gap between the roughening outer cylinder and the roughening inner cylinder is a roughening cavity, and a lower end is arranged in the base at the lower end of the roughening cavity The electrode plate group and the cover plate assembly are arranged at the upper end of the roughening outer cylinder and the upper electrode plate group is arranged on the lower side of the cover plate assembly, the lower electrode plate group and the upper electrode plate group are arranged opposite to each other and have opposite polarities, the polarities of the outer cylinder electrode plate group and the inner cylinder electrode plate group as well as the lower electrode plate group and the upper electrode plate group are periodically alternating, the plastic part fixture is arranged on the fixture lifting drive mechanism and is driven by the fixture lifting drive mechanism to lift and lower in the vertical direction, the upper side of the roughening outer cylinder is provided with a first charged ultrafine salt powder feed port group, and the lower side of the roughening outer cylinder is provided with a second charged ultrafine salt powder feed port group.

[0005] Furthermore, the roughening outer cylinder is coaxially arranged with the roughening inner cylinder, the top of the roughening inner cylinder is closed, and the height of the roughening outer cylinder is higher than that of the roughening inner cylinder.

[0006] Furthermore, an outer-cylinder insulating baffle is provided on the inner side of the outer-cylinder electrode plate group, and an inner-cylinder insulating baffle is provided on the outer side of the inner-cylinder electrode plate group.

[0007] Furthermore, the first charged ultrafine salt powder feed port group and the second charged ultrafine salt powder feed port group respectively include a plurality of feed ports, each of which is arranged along the tangent direction of the roughening outer cylinder, one end of the feed port passes through the inner wall of the roughening outer cylinder and is fixed on the insulating baffle of the outer cylinder and is connected with the inner cavity of the insulating baffle of the outer cylinder, and the plurality of feed ports are evenly spaced along the circumferential direction of the roughening outer cylinder. The plasma spray gun extracts the ultrafine salt powder in the sealed container through the negative pressure generated by the high-speed plasma airflow, and makes the ultrafine salt powder carry a high-voltage charge, and then sprays it into the roughening cavity from the first charged ultrafine salt powder feed port group and the second charged ultrafine salt powder feed port group.

[0008] Furthermore, the outer tube electrode plate group and the inner tube electrode plate group include several circles of electrode plates, each circle of electrode plates includes several rectangular electrode plates, the several rectangular electrode plates are evenly distributed along the circumferential direction of the roughened outer tube or the roughened inner tube, several circles of electrode plates are distributed along the vertical direction of the roughened outer tube or the roughened inner tube, and the rectangular electrode plates between two adjacent circles of electrode plates are staggered in the circumferential direction of the roughened outer tube or the roughened inner tube.

[0009] Furthermore, the plastic parts fixture includes a fixture body, a vertical beam, a horizontal beam and a main beam. The fixture body is horizontally fixed to the lower end of the vertical beam, the upper end of the vertical beam is fixed to one end of the horizontal beam, the horizontal beam is arranged along the radial direction of the roughened outer cylinder and the other end of the horizontal beam is fixed to the side surface of the lower end of the main beam. Several horizontal beams are distributed at equal intervals along the circumferential direction of the main beam, and several pins are arranged on the side of the fixture body, and a plastic parts clamping mechanism is arranged on one of the pins.

[0010] Furthermore, the clamp lifting drive mechanism includes a lifting bracket, a first sliding rod, a second sliding rod, a lifting drive cylinder, an upper cross beam and two side brackets. The upper end of the main beam is fixed on the lifting bracket, the upper side of the lifting bracket is connected to the lifting drive cylinder and is driven by the lifting drive cylinder to lift and lower in the vertical direction. The lifting drive cylinder is vertically fixed to the upper side of the upper cross beam, the lower ends of the first sliding rod and the second sliding rod are fixed to the lifting bracket, the upper ends of the first sliding rod and the second sliding rod are slidably set on the upper cross beam in the vertical direction, and the two ends of the upper cross beam are fixed to the base through the two side brackets.

[0011] Furthermore, the cover plate assembly includes a cover plate, a radial groove cover plate, a radial connecting rod, a gear ring, a driving gear, a gear bracket, a gear motor, a working hole cover plate, a working hole vertical frame and a working hole horizontal frame. The cover plate is provided with a plurality of radial grooves matching the horizontal crossbeams, the cover plate is also provided with a plurality of working holes for plastic parts to pass through and one end of the radial groove is connected to the working hole, the shape of the radial groove cover plate matches the radial groove and the radial groove cover plate is arranged along the radial direction of the cover plate, one end of the radial connecting rod is connected to one end of the radial groove cover plate, and the other end of the radial connecting rod is connected to the radial groove cover plate. The end is fixed to the gear ring, a plurality of radial groove cover plates and radial connecting rods are evenly spaced along the circumferential direction of the cover plate, a driving gear is rotatably set on the gear bracket and meshes with the gear ring, the driving gear is driven to rotate by the gear motor, the working hole cover plate matches the working hole and corresponds one to one, the lower end of the working hole vertical frame is fixedly connected to the working hole cover plate, the upper end of the working hole vertical frame is fixedly connected to one end of the working hole horizontal frame, the other end of the working hole horizontal frame is fixed to the outside of the lifting bracket and a plurality of working hole horizontal frames are evenly spaced along the circumferential direction of the lifting bracket.

[0012] Furthermore, the plastic part clamping mechanism comprises a first wedge-shaped clamping block, a second wedge-shaped clamping block, an arrow slider, a first tension spring, a second tension spring, a horizontal screw, a nut and a nut driving mechanism, a pin shaft is provided with a radial slide groove matching the first wedge-shaped clamping block and the second wedge-shaped clamping block, the first wedge-shaped clamping block and the second wedge-shaped clamping block are respectively slidably arranged at the two ends of the radial slide groove, the first tension spring and the second tension spring are arranged in the radial slide groove along the radial direction of the pin shaft, one end of the first tension spring is connected to the first wedge-shaped clamping block, the other end of the first tension spring is fixed in the pin shaft, and one end of the second tension spring is connected to the second wedge-shaped clamping block. The clamp block is connected, and the other end of the second tension spring is fixed in the pin shaft. An axial sliding groove matching the arrow slider is axially opened in the pin shaft, and the arrow slider is slidably set in the axial sliding groove. One end of the arrow slider is arrow-shaped, and the other end of the arrow slider is fixedly connected to one end of the horizontal screw. The first wedge-shaped clamp block and the second wedge-shaped clamp block have an inclined surface matching the arrow-shaped end of the arrow clamp block on the inner side of the side opposite to the arrow-shaped end of the arrow clamp block. The other end of the horizontal screw is slidably set in the screw hole, and the nut is sleeved on the outer side of the horizontal screw and threadedly connected to the horizontal screw, and the nut is driven to rotate by the nut driving mechanism.

[0013] Furthermore, the nut driving mechanism includes a first pulley, a synchronous belt, a second pulley, a transmission shaft, a first bevel gear, a second bevel gear, a reducer and a bevel gear driving motor. The first pulley is sleeved on the outside of the nut and fixedly connected to the nut. The transmission shaft is rotatably arranged in the horizontal beam along the length direction of the horizontal beam. The second pulley is fixed at one end of the transmission shaft. The synchronous belt is arranged on the first pulley and the second pulley. The first bevel gear is fixed at the other end of the transmission shaft. The second bevel gear is fixed on the output shaft of the reducer and the second bevel gear is meshed with the first bevel gear. The input shaft of the reducer is connected to the bevel gear driving motor and is driven to rotate by the bevel gear driving motor.

[0014] Compared with the prior art, the present invention has the following advantages and effects: the present invention provides an environmentally friendly surface roughening treatment device for automobile interior plastic parts, which uses charged ultrafine salt powder to be sprayed into a roughening chamber, and then the charged ultrafine salt powder is directionally accelerated through an alternating electric field to bombard the surface of the plastic part at high speed, thereby physically roughening the surface of the plastic part. After completion, the plastic part only needs to be washed with water to dissolve the surface salt powder. It is non-toxic and harmless, meets environmental protection requirements, and the overall process operation is simple and low-cost. The present invention designs a plastic part clamp and a cover plate assembly structure with a unique structure, which realizes the sealing of the plastic part feed port, and the plastic part clamping operation is convenient and the work efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic diagram of an environmentally friendly surface roughening treatment device for automobile interior plastic parts.

[0016] Figure 2 The present invention is a top view of an environmentally friendly surface roughening treatment device for automobile interior plastic parts.

[0017] Figure 3 Schematic diagram of the plastic parts clamp of the present invention.

[0018] Figure 4 Schematic diagram of the cover plate assembly of the present invention.

[0019] Figure 5 It is a schematic diagram of the plastic part clamping mechanism of the present invention.

[0020] Figure 6 It is a partial enlarged view of point A of the plastic part clamping mechanism of the present invention. DETAILED DESCRIPTION

[0021] In order to elaborate on the technical scheme adopted by the present invention to achieve the predetermined technical purpose, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments, and the technical means or technical features in the embodiments of the present invention can be replaced without paying creative work. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0022] like Figure 1 As shown, an environmentally friendly surface roughening treatment device for automobile interior plastic parts of the present invention comprises a base 1, a roughening outer cylinder 2, a roughening inner cylinder 3, a cover plate assembly 4, a plastic part fixture 5 and a fixture lifting and driving mechanism 6, the roughening outer cylinder 2 is sleeved on the outside of the roughening inner cylinder 3 and the lower ends of the roughening outer cylinder 2 and the roughening inner cylinder 3 are fixed on the base 1, an outer cylinder electrode plate group 7 is arranged on the inner wall of the roughening outer cylinder 2, an inner cylinder electrode plate group 8 is arranged on the outer wall of the roughening inner cylinder 3, the outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 are arranged opposite to each other and have opposite polarities, the gap between the roughening outer cylinder 2 and the roughening inner cylinder 3 is a roughening cavity, and a roughening cavity is arranged in the base 1 at the lower end of the roughening cavity. The lower electrode plate group 9 and the cover plate assembly 4 are arranged at the upper end of the roughening outer cylinder 2 and the upper electrode plate group 10 is arranged on the lower side of the cover plate assembly 4, the lower electrode plate group 9 and the upper electrode plate group 10 are arranged opposite to each other and have opposite polarities, the polarities of the outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 and the lower electrode plate group 9 and the upper electrode plate group 10 are periodically alternating, the plastic part fixture 5 is arranged on the fixture lifting drive mechanism 6 and is driven by the fixture lifting drive mechanism 6 to lift and lower in the vertical direction, the upper side of the roughening outer cylinder 2 is provided with a first charged ultrafine salt powder feed port group 11, and the lower side of the roughening outer cylinder 2 is provided with a second charged ultrafine salt powder feed port group 12.

[0023] The roughening outer cylinder 2 is coaxially arranged with the roughening inner cylinder 3, the top of the roughening inner cylinder 3 is closed, and the height of the roughening outer cylinder 2 is higher than the roughening inner cylinder 3. The upper end of the roughening outer cylinder 2 is open, and the cover plate assembly 4 is arranged at the upper end of the roughening outer cylinder 2 to completely cover it to form a sealed roughening chamber.

[0024] An outer cylinder insulating baffle 13 is provided inside the outer cylinder electrode plate group 7, and an inner cylinder insulating baffle 14 is provided outside the inner cylinder electrode plate group 8. The outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 are protected by the insulating baffle to prevent the electrode plates from being damaged by the bombardment of charged ultrafine salt powder. The insulating plate is provided in a detachable structure such as bolt fixing, which is convenient for replacement.

[0025] like Figure 2As shown, the first charged ultrafine salt powder feed port group 11 and the second charged ultrafine salt powder feed port group 12 respectively include a plurality of feed ports 15, each of which is arranged along the tangent direction of the roughening outer cylinder 2, one end of the feed port 15 passes through the inner wall of the roughening outer cylinder 2 and is fixed on the outer cylinder insulating baffle 13 to communicate with the inner cavity of the outer cylinder insulating baffle 13, and the plurality of feed ports 15 are evenly spaced along the circumferential direction of the roughening outer cylinder 2. The plasma spray gun extracts the ultrafine salt powder in the sealed container through the negative pressure generated by the high-speed plasma gas flow, and the ultrafine salt powder is charged with a high voltage, and then sprayed into the roughening cavity from the first charged ultrafine salt powder feed port group 11 and the second charged ultrafine salt powder feed port group 12. The charged ultrafine salt powder is sprayed along the inner wall of the outer cylinder insulating baffle 13 and is spirally sprayed and evenly diffused in the roughening cavity. The spiral spraying can ensure that the charged ultrafine salt powder can be diffused and distributed more evenly. Then the outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 are energized to form a strong electric field. The charged ultrafine salt powder is accelerated in the strong electric field and then bombarded on the surface of the automobile interior plastic parts to bombard fine holes on the surface. Then the outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 are energized in opposite directions. The charged ultrafine salt powder is accelerated in the opposite direction and then bombards the surface of the other side of the automobile interior plastic parts. After the outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 complete an electrode flip, the lower end electrode plate group 9 and the upper end electrode plate group 10 start working, and similarly to the outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8, two electric fields in opposite directions are generated, so that the charged ultrafine salt powder bombards the upper and lower sides of the automobile interior plastic parts, completing a complete bombardment cycle. Then the outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 continue to be energized to work. Through such a cycle of bombardment in different directions, the holes on the surface of the plastic parts are continuously increased until the coarsening requirements are met. After the roughening is completed, part of the ultrafine salt powder will be embedded in the microporous structure on the surface of the automobile interior plastic parts. Therefore, the ultrafine salt powder usually uses an inorganic salt that is easily soluble in water, and is ground to the required particle size to obtain an ultrafine salt powder that meets the process requirements. After the roughening process, the automobile interior plastic parts are placed in a water washing tank and an ultrasonic cleaning device is used to dissolve and clean the ultrafine salt powder embedded in the microporous structure on the surface of the automobile interior plastic parts, leaving only the microporous structure on the surface of the automobile interior plastic parts, thereby achieving physical roughening of the surface of the automobile interior plastic parts. The roughening treatment device of the present invention does not need to be configured with a roughening agent, and non-polluting inorganic salts such as sodium chloride can be used, which will not cause environmental pollution problems, and the dissolved inorganic salts can still be filtered, distilled, recovered, and then ground again for recycling, which greatly reduces the amount of inorganic salts used. Compared with the continuous consumption of traditional roughening agents, the process cost of the present invention is greatly reduced.

[0026] The outer cylinder electrode plate group 7 and the inner cylinder electrode plate group 8 include several circles of electrode plates, each circle of electrode plates includes several rectangular electrode plates, and the several rectangular electrode plates are evenly distributed along the circumferential direction of the roughened outer cylinder 2 or the roughened inner cylinder 3. Several circles of electrode plates are distributed along the vertical direction of the roughened outer cylinder 2 or the roughened inner cylinder 3, and the rectangular electrode plates between two adjacent circles of electrode plates are staggered in the circumferential direction of the roughened outer cylinder 2 or the roughened inner cylinder 3. By adopting these staggered array distribution methods, the electrode plates are distributed in a staggered and uniform manner, ensuring the uniformity of the bombardment of the charged ultrafine salt powder on the surface of the plastic part. And because the positive and negative electrode plates that are relatively set are staggered, that is, what are actually set opposite to one electrode plate are two electrode plates with opposite polarities biased to the two sides of the electrode plate, and the two electrode plates are symmetrically distributed on both sides of the electrode plate, this will form an electric field biased to both sides, so that the ultrafine salt powder will form deflection angles in two directions when bombarding the surface of the automobile interior plastic parts, then the adjacent deflected powders will bombard the surface of the automobile interior plastic parts in an staggered manner, forming small-angle staggered micropores, further improving the coarsening effect.

[0027] like Figure 3 As shown, the plastic parts fixture 5 comprises a fixture body 16, a vertical beam 17, a horizontal beam 18 and a main beam 19. The fixture body 16 is horizontally fixed to the lower end of the vertical beam 17, the upper end of the vertical beam 17 is fixed to one end of the horizontal beam 18, the horizontal beam 18 is arranged along the radial direction of the roughening outer cylinder 2 and the other end of the horizontal beam 18 is fixed to the side of the lower end of the main beam 19, a plurality of horizontal beams 18 are evenly spaced along the circumferential direction of the main beam 19, a plurality of pins 20 are arranged on the side of the fixture body 16, and a plastic parts clamping mechanism is arranged on one of the pins 20. When in use, the automotive interior plastic parts insert their screw holes into the pins 20, and then the plastic parts clamping mechanism clamps and fixes the automotive interior plastic parts, and the fixture lifting drive mechanism 6 drives the entire plastic parts fixture 5 to lift up and down, thereby completing the feeding and discharging of the automotive interior plastic parts in the roughening cavity. The plastic component fixture 5 is generally arranged in an L-shape outward, mainly to cooperate with the inner and outer cylinder structures. Of course, the larger the diameter of the inner and outer cylinders, the more automobile interior plastic components can be accommodated at one time.

[0028] The fixture lifting drive mechanism 6 comprises a lifting bracket 21, a first slide bar 22, a second slide bar 23, a lifting drive cylinder 24, an upper cross beam 25 and two side brackets 26. The upper end of the main beam 19 is fixed on the lifting bracket 21. The upper side of the lifting bracket 21 is connected to the lifting drive cylinder 24 and is driven by the lifting drive cylinder 24 to lift in the vertical direction. The lifting drive cylinder 24 is vertically fixed on the upper side of the upper cross beam 25. The lower ends of the first slide bar 22 and the second slide bar 23 are fixed on the lifting bracket 21 and symmetrically distributed on both sides of the lifting drive cylinder 24. The upper ends of the first slide bar 22 and the second slide bar 23 are slidably arranged on the upper cross beam 25 in the vertical direction. The two ends of the upper cross beam 25 are fixed on the base 1 through the two side brackets 26. The lifting drive cylinder 24 drives the lifting bracket 21 to lift in the vertical direction along the first slide bar 22 and the second slide bar 23, thereby driving the plastic fixture 5 to lift and lower to realize the feeding and discharging of the automobile interior plastic parts in the roughening cavity.

[0029] like Figure 1 , 3As shown in FIG. 4 , the cover plate assembly 4 includes a cover plate 27, a radial groove cover plate 28, a radial connecting rod 29, a gear ring 30, a driving gear 31, a gear bracket 32, a gear motor 33, a working hole cover plate 34, a working hole vertical frame 35 and a working hole horizontal frame 36. The cover plate 27 is provided with a plurality of radial grooves 37 matching the horizontal beam 18. The cover plate 27 is also provided with a plurality of working holes 38 for plastic parts to pass through and one end of the radial groove 37 is connected to the working hole 38. The shape of the radial groove cover plate 28 matches the radial groove 37 and the radial groove cover plate 28 is arranged along the radial direction of the cover plate 27. One end of the radial connecting rod 29 is connected to one end of the radial groove cover plate 27, and the other end of the radial connecting rod 29 is connected to the inner side of the gear ring 30. The driving gear 31 is rotatably arranged on the gear bracket 32 ​​and meshes with the gear ring 30. The driving gear 31 is driven to rotate by the gear motor 33. The working hole cover plate 34 matches the working hole 38 and corresponds one to one. A groove matching the radial connecting rod 29 is provided on the lower side of the working hole cover plate 34. The lower end of the working hole vertical frame 35 is fixedly connected to the working hole cover plate 34. The upper end of the working hole vertical frame 35 is fixedly connected to one end of the working hole horizontal frame 36. The other end of the working hole horizontal frame 36 is fixed to the outside of the lifting bracket 21 and a plurality of working hole horizontal frames 36 are equidistantly distributed along the circumferential direction of the lifting bracket 21. When the automobile interior plastic parts are being fed, in the initial state, the radial groove cover plate 28 is staggered with the radial groove 37, and the automobile interior plastic parts are driven downward into the roughening cavity by the fixture lifting drive mechanism 6. When the height of the horizontal beam 18 is lower than the height of the cover assembly 4 and the working hole cover plate 34 is still higher than the height of the cover assembly 4, the gear motor 33 drives the driving gear 31 to rotate, thereby driving the ring gear 30 to rotate, and the radial groove cover plate 28 is driven by the ring gear 30 to cover the upper side of the radial groove 37, and then the automobile interior plastic parts continue to move downward under the drive of the fixture lifting drive mechanism 6 until the working hole cover plate 34 completely covers the working hole 38 to complete the sealing of the upper end of the roughening cavity. Through this ingenious control and coordination method, the problems of feeding the complex structure of the plastic parts fixture 5 and closing the cavity are solved.

[0030] like Figure 5 and Figure 6As shown, the plastic part clamping mechanism includes a first wedge-shaped clamping block 39, a second wedge-shaped clamping block 40, an arrow slider 41, a first tension spring 42, a second tension spring 43, a horizontal screw 44, a nut 45 and a nut driving mechanism. A radial slide groove matching the first wedge-shaped clamping block 39 and the second wedge-shaped clamping block 40 is opened on the pin shaft 20. The first wedge-shaped clamping block 39 and the second wedge-shaped clamping block 40 are respectively slidably arranged at the two ends of the radial slide groove. The first tension spring 42 and the second tension spring 43 are slidably arranged in the radial slide groove along the radial direction of the pin shaft 20. One end of the first tension spring 42 is connected to the first wedge-shaped clamping block 39, and the other end of the first tension spring 42 is fixed in the pin shaft 20. One end of the second tension spring 43 is connected to the second wedge-shaped clamping block 40 is connected, the other end of the second tension spring 43 is fixed in the pin shaft 20, and an axial sliding groove 46 matching the arrow slider 41 is axially opened in the pin shaft 20, and the arrow slider 41 is slidably set in the axial sliding groove 46, one end of the arrow slider 41 is arrow-shaped, and the other end of the arrow slider 41 is fixedly connected to one end of the horizontal screw 44, and the first wedge-shaped clamp block 39 and the second wedge-shaped clamp block 40 are provided with an inclined surface matching the arrow-shaped end of the arrow clamp block 41 on the inner side of the side surface opposite to the arrow-shaped end of the arrow clamp block 41, and the other end of the horizontal screw 44 is slidably set in the screw hole 47, and the nut 45 is sleeved on the outer side of the horizontal screw 44 and is threadedly connected to the horizontal screw 44, and the nut 45 is driven to rotate by the nut driving mechanism. In the initial state, the arrow slider 41 is located at the left end of the axial slot 46. At this time, the first wedge-shaped clamp 39 and the second wedge-shaped clamp 40 are retracted inside the pin 20 under the action of the first tension spring 42 and the second tension spring 43. The screw hole of the automobile interior plastic part can be directly inserted into the pin 20. After insertion, the nut driving mechanism drives the nut 45 to rotate, thereby driving the horizontal screw 44 to move rightward. The arrow slider 41 is driven by the horizontal screw 44 to slide rightward along the axial slot 46. The arrow-shaped end of the arrow slider 41 pushes the first wedge-shaped clamp 39 and the second wedge-shaped clamp 40 along the inclined surface of the first wedge-shaped clamp 39 and the second wedge-shaped clamp 40 to the two sides of the pin 20 along the radial slot, thereby locking and positioning the automobile interior plastic part to prevent it from falling off. When disassembling, the nut driving mechanism drives the nut 45 in the reverse direction, the arrow slider 41 moves to the left, and the first wedge-shaped clamp 39 and the second wedge-shaped clamp 40 are retracted into the pin 20 under the action of the first tension spring 42 and the second tension spring 43. The automobile interior plastic part can be directly removed. The plastic part clamping mechanism can synchronously control the extension and closing of two wedge-shaped clamping blocks of a plurality of pins 20, and has a simple control structure and low cost.

[0031] The nut driving mechanism includes a first pulley 48, a synchronous belt 49, a second pulley 50, a transmission shaft 51, a first bevel gear 52, a second bevel gear 53, a reducer 54 and a bevel gear driving motor 55. The first pulley 48 is sleeved on the outside of the nut 45 and is fixedly connected to the nut 45. The transmission shaft 51 is rotatably arranged in the horizontal beam 18 along the length direction of the horizontal beam 18. The second pulley 50 is fixed at one end of the transmission shaft 51. The synchronous belt 49 is arranged on the first pulley 48 and the second pulley 50. The first bevel gear 52 is fixed at the other end of the transmission shaft 51. The second bevel gear 53 is fixed on the output shaft of the reducer 54 and the second bevel gear 53 is meshed with the first bevel gear 52. The input shaft of the reducer 54 is connected to the bevel gear driving motor 55 and is driven to rotate by the bevel gear driving motor 55. The bevel gear drive motor 55 drives the second bevel gear 53 to rotate after being decelerated by the reducer 54. The second bevel gear 53 drives the first bevel gear 52 to rotate, thereby driving the transmission shaft 51 to rotate. The other end of the transmission shaft 51 drives the nut 45 in the first pulley 48 to rotate through the second pulley 50 and the synchronous belt 49, thereby driving the nut 45.

[0032] The present invention provides an environment-friendly surface roughening treatment device for automobile interior plastic parts, which uses charged ultrafine salt powder to be sprayed into a roughening chamber, and then the charged ultrafine salt powder is directionally accelerated by an alternating electric field to bombard the surface of the plastic part at high speed, thereby physically roughening the surface of the plastic part. After completion, the plastic part only needs to be washed with water to dissolve the surface salt powder. The device is non-toxic and harmless, meets environmental protection requirements, and has simple overall process operation and low cost. The present invention designs a plastic part clamp and a cover plate assembly structure with a unique structure, which realizes the sealing of the plastic part feed port, and the plastic part clamping operation is convenient and the work efficiency is high.

[0033] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. An environmentally friendly surface roughening treatment device for automobile interior plastic parts, characterized in that: It comprises a base, a roughening outer cylinder, a roughening inner cylinder, a cover plate assembly, a plastic fixture and a fixture lifting and driving mechanism. The roughening outer cylinder is sleeved on the outer side of the roughening inner cylinder and the lower ends of the roughening outer cylinder and the roughening inner cylinder are fixed on the base. An outer cylinder electrode plate group is arranged on the inner wall of the roughening outer cylinder, and an inner cylinder electrode plate group is arranged on the outer wall of the roughening inner cylinder. The outer cylinder electrode plate group and the inner cylinder electrode plate group are arranged oppositely and have opposite polarities. The gap between the roughening outer cylinder and the roughening inner cylinder is a roughening cavity. A lower end electrode plate group is arranged in the base at the lower end of the roughening cavity. The cover plate assembly is arranged An upper electrode plate group is arranged at the upper end of the roughening outer cylinder and on the lower side of the cover plate assembly, the lower electrode plate group is arranged opposite to the upper electrode plate group and has opposite polarity, the polarity of the outer cylinder electrode plate group and the inner cylinder electrode plate group as well as the lower electrode plate group and the upper electrode plate group are periodically alternating, the plastic part fixture is arranged on the fixture lifting drive mechanism and is driven by the fixture lifting drive mechanism to lift and lower in the vertical direction, a first charged ultrafine salt powder feed port group is arranged on the upper side of the roughening outer cylinder, and a second charged ultrafine salt powder feed port group is arranged on the lower side of the roughening outer cylinder.

2. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 1 is characterized in that: The roughening outer cylinder is coaxially arranged with the roughening inner cylinder, the top of the roughening inner cylinder is closed, and the height of the roughening outer cylinder is higher than that of the roughening inner cylinder.

3. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 2 is characterized in that: An outer cylinder insulating baffle is arranged inside the outer cylinder electrode plate group, and an inner cylinder insulating baffle is arranged outside the inner cylinder electrode plate group.

4. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 2 is characterized in that: The first charged ultrafine salt powder feed port group and the second charged ultrafine salt powder feed port group respectively include a plurality of feed ports, each of which is arranged along the tangent direction of the roughening outer cylinder, one end of the feed port passes through the inner wall of the roughening outer cylinder and is fixed on the insulating baffle of the outer cylinder and is connected with the inner cavity of the insulating baffle of the outer cylinder, and the plurality of feed ports are evenly spaced along the circumferential direction of the roughening outer cylinder. The plasma spray gun extracts the ultrafine salt powder in the sealed container through the negative pressure generated by the high-speed plasma airflow, and makes the ultrafine salt powder carry a high-voltage charge, and then sprays it into the roughening cavity from the first charged ultrafine salt powder feed port group and the second charged ultrafine salt powder feed port group.

5. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 2 is characterized in that: The outer cylinder electrode plate group and the inner cylinder electrode plate group include several circles of electrode plates, each circle of electrode plates includes several rectangular electrode plates, the several rectangular electrode plates are evenly distributed along the circumferential direction of the roughened outer cylinder or the roughened inner cylinder, the several circles of electrode plates are distributed along the vertical direction of the roughened outer cylinder or the roughened inner cylinder, and the rectangular electrode plates between two adjacent circles of electrode plates are staggered in the circumferential direction of the roughened outer cylinder or the roughened inner cylinder.

6. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 1 is characterized in that: The plastic parts fixture comprises a fixture body, a vertical beam, a horizontal beam and a main beam. The fixture body is horizontally fixed to the lower end of the vertical beam, the upper end of the vertical beam is fixed to one end of the horizontal beam, the horizontal beam is arranged along the radial direction of the roughened outer cylinder and the other end of the horizontal beam is fixed to the side surface of the lower end of the main beam. Several horizontal beams are distributed at equal intervals along the circumferential direction of the main beam. Several pin shafts are arranged on the side of the fixture body, and a plastic parts clamping mechanism is arranged on one of the pin shafts.

7. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 6 is characterized in that: The clamp lifting drive mechanism includes a lifting bracket, a first sliding rod, a second sliding rod, a lifting drive cylinder, an upper cross beam and two side brackets. The upper end of the main beam is fixed on the lifting bracket, the upper side of the lifting bracket is connected to the lifting drive cylinder and is driven by the lifting drive cylinder to lift and lower in the vertical direction. The lifting drive cylinder is vertically fixed on the upper side of the upper cross beam, the lower ends of the first sliding rod and the second sliding rod are fixed on the lifting bracket, the upper ends of the first sliding rod and the second sliding rod are slidably set on the upper cross beam in the vertical direction, and the two ends of the upper cross beam are fixed to the base through the two side brackets.

8. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 6, characterized in that: The cover plate assembly includes a cover plate, a radial groove cover plate, a radial connecting rod, a gear ring, a driving gear, a gear bracket, a gear motor, a working hole cover plate, a working hole vertical frame and a working hole horizontal frame. The cover plate is provided with a plurality of radial grooves matching the horizontal beam, and the cover plate is also provided with a plurality of working holes for plastic parts to pass through, and one end of the radial groove is connected to the working hole. The shape of the radial groove cover plate matches the radial groove and the radial groove cover plate is arranged along the radial direction of the cover plate, one end of the radial connecting rod is connected to one end of the radial groove cover plate, and the other end of the radial connecting rod is fixed to the gear ring, and a plurality of radial groove cover plates and radial connecting rods are distributed at equal intervals along the circumferential direction of the cover plate, the driving gear is rotatably arranged on the gear bracket and meshes with the gear ring, the driving gear is driven to rotate by the gear motor, the working hole cover plate matches the working hole and corresponds one to one, the lower end of the working hole vertical frame is fixedly connected to the working hole cover plate, the upper end of the working hole vertical frame is fixedly connected to one end of the working hole horizontal frame, the other end of the working hole horizontal frame is fixed to the outside of the lifting bracket and a plurality of working hole horizontal frames are distributed at equal intervals along the circumferential direction of the lifting bracket.

9. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 6, characterized in that: The plastic part clamping mechanism comprises a first wedge-shaped clamping block, a second wedge-shaped clamping block, an arrow slider, a first tension spring, a second tension spring, a horizontal screw, a nut and a nut driving mechanism. A radial sliding groove matching the first wedge-shaped clamping block and the second wedge-shaped clamping block is opened on the pin shaft. The first wedge-shaped clamping block and the second wedge-shaped clamping block are respectively slidably arranged at the two ends of the radial sliding groove. The first tension spring and the second tension spring are arranged in the radial sliding groove along the radial direction of the pin shaft. One end of the first tension spring is connected to the first wedge-shaped clamping block, and the other end of the first tension spring is fixed in the pin shaft. One end of the second tension spring is connected to the second wedge-shaped clamping block. The other end of the second tension spring is fixed in the pin shaft, and an axial sliding groove matching the arrow slider is axially opened in the pin shaft, the arrow slider is slidably set in the axial sliding groove, one end of the arrow slider is arrow-shaped, and the other end of the arrow slider is fixedly connected to one end of the horizontal screw rod, and the first wedge-shaped clamping block and the second wedge-shaped clamping block have an inclined surface matching the arrow-shaped end of the arrow clamping block on the inner side of the side surface opposite to the arrow-shaped end of the arrow clamping block, the other end of the horizontal screw rod is slidably set in the screw rod hole, the nut is sleeved on the outer side of the horizontal screw rod and is threadedly connected to the horizontal screw rod, and the nut is driven to rotate by the nut driving mechanism.

10. The environmentally friendly surface roughening treatment device for automobile interior plastic parts according to claim 9, characterized in that: The nut driving mechanism includes a first pulley, a synchronous belt, a second pulley, a transmission shaft, a first bevel gear, a second bevel gear, a reducer and a bevel gear driving motor. The first pulley is sleeved on the outside of the nut and is fixedly connected to the nut. The transmission shaft is rotatably arranged in the horizontal beam along the length direction of the horizontal beam. The second pulley is fixed at one end of the transmission shaft. The synchronous belt is arranged on the first pulley and the second pulley. The first bevel gear is fixed at the other end of the transmission shaft. The second bevel gear is fixed on the output shaft of the reducer and the second bevel gear is meshed with the first bevel gear. The input shaft of the reducer is connected to the bevel gear driving motor and is driven to rotate by the bevel gear driving motor.

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