A local sandblasting production line equipment for small parts

Abstract

The present invention provides a local sandblasting production line equipment for small parts, comprising a loading component, a conveying component, a sandblasting component, a sandblasting shielding module, a top-side shielding module and a blanking component which are installed on the same production line; the loading component includes a loading tray for loading the strip; the conveying component includes a driving ratchet for driving the strip to move and a main body support stand, a plurality of brackets are installed on the side surface of the stand along the same straight line, a conveying groove is formed in the bracket, a vertical plate is fixedly arranged on the bottom wall of the conveying groove, and a pressing plate is connected to the top of the vertical plate. The whole equipment of the present invention consists of a loading component, a conveying component, a sandblasting component, a sandblasting shielding module, a top-side shielding module and a blanking component to form a sandblasting production line, which can not only realize the automatic sandblasting process of small workpieces, but also complete the automatic mechanical shielding during the sandblasting process of small workpieces, with low processing cost and short time consumption; the popularization and application have good economic and social benefits.

Description

Technical Field

[0001] The present invention belongs to the technical field of surface treatment of small parts, and particularly relates to a local sandblasting production line equipment for small parts. Background Art

[0002] Sandblasting treatment is a process of cleaning and roughening the surface of the substrate by the impact of a high-speed sand stream. Using compressed air as the power, the abrasive material is formed into a high-speed jet beam and sprayed onto the surface to be treated, so that the surface obtains a certain degree of cleanliness and different roughness treatment processes.

[0003] During the sandblasting process, some workpieces need to be locally sandblasted on the surface due to certain process requirements, and the roughness of other positions cannot be changed except for the positions that need to be sandblasted.

[0004] In the related art, when performing surface treatment on workpieces that need to be locally sandblasted, a film covering method is generally used for pretreatment, that is, the non-sandblasted parts of the sandblasted surface of the workpiece are covered by a protective film, so that only the exposed parts of the workpiece are sandblasted during the sandblasting process. After the sandblasting is completed, the film needs to be removed.

[0005] Among the workpieces that need local sandblasting treatment, a considerable part of the workpieces have small volumes and sandblasted areas. If the film covering method is used to achieve local sandblasting treatment, the difficulty of covering and removing the film is large, and the automated sandblasting process cannot be completed, resulting in high costs, and the enterprise consumes high time costs and economic costs.

[0006] How to provide a local sandblasting production line equipment for small parts, how to achieve mechanical automation of loading, masking, sandblasting and unloading of small workpieces, reduce processing costs and time costs, and improve efficiency have become urgent problems to be solved. Summary of the Invention

[0007] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a local sandblasting production line equipment for small parts, which is used to solve the problems in the prior art that among the workpieces that need local sandblasting treatment, a considerable part of the workpieces have small volumes and sandblasted areas. If the film covering method is used to achieve local sandblasting treatment, the difficulty of covering and removing the film is large, and the automated sandblasting process cannot be completed, resulting in high costs, and the enterprise consumes high time costs and economic costs.

[0008] To achieve the above purpose, the present invention provides a local sandblasting production line equipment for small parts, including a loading component, a transporting component, a sandblasting component, a sandblasting masking module, a top-side masking module and an unloading component installed on the same production line;

[0009] The loading component includes a loading tray for loading on a tape;

[0010] By adopting this technical solution: the workpiece to be sandblasted is combined with the material belt, which is used as a carrier and transported on the assembly line equipment driven by the material belt; the material belt is rolled up on the loading tray, and when the material belt is used, the corresponding material is fed by rotating;

[0011] The conveying assembly includes a driving ratchet for driving the material belt to move and a main body supporting stand, a plurality of brackets are installed along the same straight line on the side surface of the stand, a conveying slot is opened on the bracket, a stand is fixedly provided on the bottom wall of the conveying slot, and a press plate is connected to the top of the stand; a front baffle is detachably connected to the front side of the bracket, a supporting pin is rotatably connected to the front baffle, the supporting pin is correspondingly passed through the inside of the conveying slot, and the upper part of the supporting pin is in contact with the lower surface of the press plate;

[0012] By adopting this technical solution: the driving ratchet can drive the material belt to be transported in the conveying slot on the bracket; during the conveying process of the material belt inside the conveying slot, the bottom is supported by the supporting pins and the top is restricted by the pressing plate, thereby realizing the limit position during its own conveying process and reducing the warping during its own conveying, so as to more accurately locate the workpiece position and improve the positioning accuracy;

[0013] The sandblasting assembly includes a fixed elevation angle sandblasting module and a fixed depression angle sandblasting module;

[0014] By adopting this technical solution: sandblasting operations in both the upper and lower directions can be achieved, ensuring that the multi-directional sandblasting requirements of the workpiece can be met;

[0015] The sandblasting shielding module comprises a plurality of sandblasting shielding components connected to the mold body, the plurality of sandblasting shielding components are equidistantly connected to one side of the mold table, the mold table is detachably plugged into the upper part of the mounting table, and the mounting table is connected to the extended end of the second cylinder;

[0016] The sandblasting shielding assembly comprises a base, a rear pressing plate and a front pressing plate; the front pressing plate and the rear pressing plate are integrally connected to the base by screws; the mold body is correspondingly pressed between the front pressing plate and the rear pressing plate;

[0017] By adopting this technical solution: the mold table connected with multiple sandblasting shielding components can be quickly disassembled and assembled on the mounting table, and the mounting table can be moved back and forth under the action of the second cylinder, which can not only realize the rapid replacement of multiple sandblasting shielding components, but also can be directly moved to the outside of the sealed space for maintenance of the sandblasting shielding components;

[0018] The top shielding module includes a plurality of mounting columns integrally arranged with the stand, a loading platform is installed on the front side of each mounting column, a detachable tray is installed on the top side of the adjacent loading platform by screws, a placement slot is opened on the detachable tray, and a shielding block is placed inside the placement slot;

[0019] A structural beam is installed at the top of the vertical frame. A number of quick hardware clamps are installed on the structural beam. The lower end of the pressure bar of the quick hardware clamp is connected to a flat pressing plate; the flat pressing plate is relatively located directly above the shielding block;

[0020] By adopting this technical solution: The shielding block is pressed inside the placement groove through the action of the quick hardware clamp, so that the top of the lower workpiece can be shielded. When the shielding block is damaged and needs to be replaced, directly lift the quick hardware clamp to release the fixing device of the shielding block. It can not only perform normal top-side shielding, but also perform quick maintenance;

[0021] The blanking component includes a winding disc for winding the sandblasted tape.

[0022] By adopting this technical solution: Carry out the winding operation of the sandblasted tape.

[0023] In an embodiment of the present invention, the loading component further includes a tape conveying mechanism, a cutting mechanism and a welding mechanism;

[0024] The conveying mechanism includes a conveying table with a tape conveying groove. The two sides of the conveying table are respectively connected with a first conveying motor and a second conveying motor. The output shafts of the first conveying motor and the second conveying motor are both connected with a pulling disc for driving the tape to move;

[0025] The cutting mechanism is arranged between the first conveying motor and the second conveying motor, and includes a die holder installed on the conveying table. The top of the die holder is connected with a first cylinder. The extending end of the first cylinder vertically penetrates to the inside of the die holder and is connected with an upper template; a lower template is fixedly connected to the lower side inside the die holder corresponding to the upper template;

[0026] The lower side of the upper template is connected with a pressing plate through a spring. Two groups of positioning pins are connected to both sides of the lower surface of the pressing plate. Each group of positioning pins penetrates the lower template downward;

[0027] Two cutting knives for cutting the tape are fixedly arranged on the bottom side of the upper template. The cutting knives penetrate the pressing plate and the lower template downward;

[0028] The welding mechanism includes a welding frame installed on the extending end of the vertical driving cylinder. A welding machine for welding two tapes is fixedly arranged on the welding frame.

[0029] By adopting this technical solution: when the current coil strip is exhausted, the previous coil strip is pulled by the second conveying motor, so that the tail end of the previous coil strip is located directly below the die holder. The first conveying motor and the second conveying motor are respectively adjusted for the coil strip. The two cutting knives respectively cut the two coil strips, and the sum of the distances between the nearest workpieces of the two cut coil strips and the cut is in line with the workpiece spacing requirements. During the cutting process, the first cylinder drives the upper template to press down, and the pressing plate and the upper template act simultaneously, so that the positioning pins press down and pass through the corresponding positioning holes on the coil strip, and the position of the coil strip is positioned. After the coil strip is positioned, the upper template continues to press down, so that the cutting knives act on the coil strip to cut it. The two cut coil strips can be conveyed to the welding mechanism under the action of the first conveying motor and the second conveying motor, and are welded under the action of the welder to ensure continuous feeding of the coil strip.

[0030] In an embodiment of the present invention, a camera dimension detection device for detecting the cutting position of the coil strip is provided between the welding mechanism and the second conveying motor.

[0031] By adopting this technical solution: the camera dimension detection device is a prior art and can be used to detect the cutting condition of the coil strip, as well as the relevant dimensions of the workpiece and the coil strip.

[0032] In an embodiment of the present invention, a pressure material frame is connected to the bracket, a spring piece is connected to the front end of the pressure material frame, and the spring piece is correspondingly pressed on the upper part of the pressure plate.

[0033] By adopting this technical solution: the elastic force of the spring piece will be converted into the downward pressure of the pressure plate, so as to realize better limiting of the top of the coil strip by the pressure plate and avoid the phenomenon of warping during the conveying process of the coil strip.

[0034] In an embodiment of the present invention, the fixed elevation angle sandblasting module includes a first mounting seat. The top of the first mounting seat is horizontally installed with a cantilever seat. The front end of the cantilever seat extends out of the range of the first mounting seat and is provided with an inclined mounting surface. Limiting grooves are opened on both sides of the mounting surface. The inside of the limiting groove is connected with a first mounting frame by screws. A first clamping handle is connected to the side wall of the first mounting frame by screws. Two first clamping jaws are integrally arranged at the end of the first clamping handle. A first clamping groove is opened on the opposite side of the two first clamping jaws; a second locking bolt is penetrated through the ends of the two first clamping jaws.

[0035] By adopting this technical solution: the fixed elevation angle sandblasting module is composed of a first mounting seat, a first mounting frame and a first clamping handle connected by screws. It can not only realize the fixation of the elevation angle of the nozzle, but also be relatively convenient for overall assembly and disassembly, with low use cost and good benefits.

[0036] In one embodiment of the present invention, the fixed depression angle sandblasting module includes a second mounting seat, the top end of the second mounting seat is connected to a positioning block by screws, one end of the positioning block is provided with an angled mounting groove, the interior of the mounting groove is connected to a second mounting frame, a second clamping handle is connected to a side wall at the front end of the second mounting frame by screws, two opposite second clamping jaws are integrally fixed to the top end of the second clamping handle, and second engaging grooves are provided on opposite sides of the two second clamping jaws; second locking bolts are passed through the ends of the two second clamping jaws.

[0037] By adopting this technical solution: the fixed depression angle sandblasting module is composed of a second mounting seat, a positioning block, a second mounting frame and a second clamping handle connected by screws, which not only can realize the depression angle fixation of the nozzle, but also the overall assembly and disassembly is relatively convenient, the use cost is low, and it has good benefits.

[0038] In one embodiment of the present invention, first shielding plates are connected to both sides of the rear surface of the mold body; a second shielding plate is connected to the upper side of the rear surface of the mold body, and a clearance groove is formed on the plate body of the second shielding plate.

[0039] By adopting this technical solution: the first shielding plate and the second shielding plate provide shielding on both sides and the top respectively, and the opening of the clearance groove is positioned to ensure that the workpiece can be located inside the space formed by the first shielding plate and the second shielding plate, thereby achieving shielding of the workpiece.

[0040] In one embodiment of the present invention, the blanking assembly also includes a photographic detection device for checking the cutting condition and the relevant dimensions of the workpiece and the material strip.

[0041] By adopting this technical solution: the photographic detection device is an existing device, which can detect the processing size and surface indicators of the workpiece.

[0042] As described above, a small parts local sandblasting assembly line equipment of the present invention has the following beneficial effects: the entire equipment is composed of a loading component, a conveying component, a sandblasting component, a sandblasting shielding module, a top side shielding module and a unloading component to form a sandblasting assembly line, which can not only realize the automated sandblasting process of small workpieces, but also complete automated mechanical shielding during the sandblasting process of small workpieces. The processing cost is low, the time consumption is short, and the promotion and application has good economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the installation position of components on the assembly line of the present invention.

[0044] Figure 2 It is a stereoscopic view of a partial feeding assembly of the present invention.

[0045] Figure 3It is the front view of the local loading component of the present invention.

[0046] Figure 4 It is the perspective view of the conveying component of the present invention.

[0047] Figure 5 It is Figure 4 The enlarged view at position A in

[0048] Figure 6 It is the side view of the conveying component of the present invention.

[0049] Figure 7 It is the perspective view of the elevation angle sandblasting module of the present invention.

[0050] Figure 8 It is the perspective view of the local component docking of the elevation angle sandblasting module of the present invention.

[0051] Figure 9 It is the perspective view of the depression angle sandblasting module of the present invention.

[0052] Figure 10 It is the perspective view of the sandblasting shielding module of the present invention.

[0053] Figure 11 It is the perspective view of the sandblasting shielding component of the present invention.

[0054] Figure 12 It is the perspective view of the mold body of the present invention.

[0055] Figure 13 It is the perspective view of the top-side shielding module of the present invention.

[0056] Figure 14 It is the perspective view of the top-side shielding module of the present invention.

[0057] Figure 15 It is Figure 14 The enlarged view at position A in

[0058] In the figure: 1. Loading tray; 101. Conveyor table; 102. First conveyor motor; 103. Second conveyor motor; 104. Material pulling tray; 105. Die carrier; 106. First cylinder; 107. Upper template; 108. Lower template; 109. Pressing plate; 110. Positioning pin; 111. Cutting knife; 112. Welding frame; 113. Welder; 2. Upright frame; 21. Bracket; 22. Vertical plate; 23. Pressure plate; 24. Front baffle; 25. Stock support pin; 26. Pressure frame; 27. Spring piece; 3. First mounting seat; 31. Cantilever seat; 32. Mounting surface; 33. Limit groove; 34. First mounting bracket; 35. First clamping handle; 36. First jaw; 37. First clamping groove; 38. First locking bolt; 4. Second mounting seat; 41. Positioning block; 42. Mounting groove; 43. Second mounting bracket; 44. Second clamping handle; 45. Second jaw; 46. Second clamping groove; 47. Second locking bolt; 5. Mold body; 51. First shielding plate; 52. Second shielding plate; 53. Relief groove; 6. Sandblasting shielding assembly; 61. Base; 62. Rear pressure plate; 63. Front pressure plate; 601. Mold table; 602. Mounting table; 603. Second cylinder; 7. Mounting column; 71. Carrying table; 72. Removable tray; 73. Placing groove; 74. Shielding block; 75. Structural beam; 76. Quick hardware clamp; 77. Flat pressure plate; 81. Loading assembly; 82. Conveyor assembly; 83. Fixed elevation sandblasting module; 84. Fixed depression sandblasting module; 85. Sandblasting shielding module; 86. Top side shielding module. Detailed implementation manners

[0059] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0060] Please refer to Figures 1-15 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention.

[0061] Please refer to Figures 1-3, A small part local sandblasting production line equipment, including a loading component 81, a transporting component 82, a sandblasting component, a sandblasting shielding module 85, a top-side shielding module 86 and a blanking component installed on the same production line;

[0062] The loading component 81 includes a loading tray 1 for loading the tape, a transporting mechanism for the tape, a cutting mechanism and a welding mechanism;

[0063] The transporting component 82 includes a transporting table 101 with a tape transporting groove. On both sides of the transporting table 101, a first transporting motor 102 and a second transporting motor 103 are respectively connected. On the output shafts of the first transporting motor 102 and the second transporting motor 103, a pulling tray 104 for driving the tape to move is connected;

[0064] The cutting mechanism is arranged between the first transporting motor 102 and the second transporting motor 103, and includes a die holder 105 installed on the transporting table 101. At the top of the die holder 105, a first cylinder 106 is connected. The extending end of the first cylinder 106 vertically penetrates to the inside of the die holder 105 and is connected to the upper template 107; Corresponding to the upper template 107, a lower template 108 is fixedly connected to the lower side inside the die holder 105;

[0065] Further, the lower side of the upper template 107 is connected with a pressing plate 109 through a spring. On both sides of the lower surface of the pressing plate 109, a total of two groups of positioning pins 110 are connected. Each group of positioning pins 110 vertically penetrates the lower template 108 downward;

[0066] Further, two cutting knives 111 for cutting the tape are fixedly arranged on the bottom side of the upper template 107. The cutting knives 111 vertically penetrate the pressing plate 109 and the lower template 108 downward;

[0067] The welding mechanism includes a welding frame 112 installed on the extending end of a vertical driving cylinder. On the welding frame 112, a welding machine 113 for welding two tapes is fixedly arranged.

[0068] By adopting this technical solution: the workpiece to be sandblasted is combined with the material belt, which is used as a carrier and transported on the assembly line equipment under the drive of the material belt; the material belt is rolled up on the loading disk 1, and when the material belt is used, the corresponding material is fed by rotation; when the front roll of the material belt is exhausted, the front roll of the material belt is pulled by the second conveying motor 103, so that the tail end of the front roll of the material belt is located directly below the mold frame 105, the first conveying motor 102 and the second conveying motor 103 are respectively adjusted to the position of the material belt, and the two cutters 111 cut the two material belts respectively, and make the workpiece closest to the cut material belt be close to the cut workpiece. The sum of the opening distances meets the workpiece spacing requirements; during the cutting process, the first cylinder 106 drives the upper template 107 to press down, and the clamping plate 109 and the upper template 107 act simultaneously, so that the positioning pin 110 is pressed down and passes through the corresponding positioning hole on the material strip, and the position of the material strip is positioned. After the material strip is positioned, the upper template 107 continues to press down, so that the cutter 111 acts on the material strip to cut it. The two cut material strips can be transported to the welding mechanism under the action of the first conveying motor 102 and the second conveying motor 103, and welding is achieved under the action of the welding machine 113 to ensure continuous feeding of the material strip.

[0069] See also Figures 4-6 The conveying assembly 82 includes a driving ratchet for driving the material belt to move and a main body supporting stand 2. A plurality of brackets 21 are installed along the same straight line on the side surface of the stand 2. A conveying groove is opened on the bracket 21. A stand 22 is fixedly provided on the bottom wall of the conveying groove. A press plate 23 is connected to the top of the stand 22. A front baffle 24 is detachably connected to the front side of the bracket 21. A supporting pin 25 is rotatably connected to the front baffle 24. The supporting pin 25 is correspondingly passed through the inside of the conveying groove, and the upper part of the supporting pin 25 is in contact with the lower surface of the press plate 23.

[0070] By adopting this technical solution: the driving ratchet can drive the material belt to be transported in the conveying groove on the bracket 21; during the conveying process of the material belt inside the conveying groove, the bottom is supported by the supporting pin 25 and the top is restricted by the pressing plate 23, so as to achieve the limit position during the conveying process, reduce the warping during the conveying process, so as to more accurately locate the workpiece position and improve the positioning accuracy;

[0071] Furthermore, a material pressing frame 26 is connected to the bracket 21 , and a spring sheet 27 is connected to the front end of the material pressing frame 26 . The spring sheet 27 is pressed on the upper part of the material pressing plate 23 .

[0072] By adopting this technical solution, the elastic force of the spring sheet 27 will be converted into the downward pressure of the pressing plate 23, so that the pressing plate 23 can better limit the top of the material strip and avoid the material strip from warping during transportation.

[0073] See also Figures 7-9 The sandblasting assembly includes a fixed elevation angle sandblasting module 83 and a fixed depression angle sandblasting module 84;

[0074] By adopting this technical solution, sandblasting operations in both the up and down directions can be achieved, ensuring that the multi-directional sandblasting requirements of workpieces can be met;

[0075] The fixed elevation angle sandblasting module 83 includes a first mounting base 3. A cantilever base 31 is horizontally mounted on the top of the first mounting base 3. An inclined mounting surface 32 is provided at the front end of the cantilever base 31 extending beyond the range of the first mounting base 3. Limiting grooves 33 are opened on both sides of the mounting surface 32. A first mounting frame 34 is connected inside the limiting grooves 33 by screws. A first clamping handle 35 is connected to the side wall of the first mounting frame 34 by screws. Two first clamping jaws 36 are integrally provided at the end of the first clamping handle 35. A first clamping groove 37 is opened on the opposite side of the two first clamping jaws 36. A first locking bolt 38 passes through the ends of the two first clamping jaws 36;

[0076] By adopting this technical solution, the fixed elevation angle sandblasting module 83 is formed by connecting the first mounting base 3, the first mounting frame 34 and the first clamping handle 35 by screws. It can not only fix the elevation angle of the nozzle, but also is relatively convenient for overall assembly and disassembly, has a low use cost, and has good benefits;

[0077] The fixed depression angle sandblasting module 84 includes a second mounting base 4. A positioning block 41 is connected to the top end of the second mounting base 4 by screws. An angular mounting groove 42 is opened at one end of the positioning block 41. A second mounting frame 43 is connected inside the mounting groove 42. A second clamping handle 44 is connected to one side wall at the front end of the second mounting frame 43 by screws. Two opposite second clamping jaws 45 are integrally fixed to the top end of the second clamping handle 44. A second clamping groove 46 is opened on the opposite side of the two second clamping jaws 45. A second locking bolt 47 passes through the ends of the two second clamping jaws 45.

[0078] By adopting this technical solution, the fixed depression angle sandblasting module 84 is formed by connecting the second mounting base 4, the positioning block 41, the second mounting frame 43 and the second clamping handle 44 by screws. It can not only fix the depression angle of the nozzle, but also is relatively convenient for overall assembly and disassembly, has a low use cost, and has good benefits.

[0079] Please refer to Figures 10-12 , the sandblasting shielding module 85 includes several sandblasting shielding components 6 connected to the mold body 5. Several sandblasting shielding components 6 are equidistantly connected to one side of the mold table 601. The mold table 601 is detachably inserted into the upper part of the mounting table 602. The mounting table 602 is connected to the extending end of the second cylinder 603;

[0080] Both sides of the rear surface of the mold body 5 are connected with first shielding plates 51; a second shielding plate 52 is connected to the upper side of the rear surface of the mold body 5. A relief groove 53 is opened on the plate body of the second shielding plate 52;

[0081] The sandblasting masking assembly 6 includes a base 61, a rear pressing plate 62 and a front pressing plate 63; the front pressing plate 63 and the rear pressing plate 62 are integrally connected to the base 61 by screws; the mold body 5 is correspondingly pressed between the front pressing plate 63 and the rear pressing plate 62.

[0082] By adopting this technical solution: the mold table 601 connecting multiple sandblasting masking assemblies 6 can be quickly disassembled and assembled on the installation table 602, and the installation table 602 can move back and forth under the action of the second cylinder 603, which can not only realize the quick replacement of multiple sandblasting masking assemblies 6, but also directly move to the outside of the sealed space for the maintenance of the sandblasting masking assembly 6.

[0083] Please refer to Figures 13-15 , the top-side shielding module 86 includes several mounting posts 7 integrally provided with the vertical frame 2. A loading platform 71 is installed on the front side of each mounting post 7. A detachable tray 72 is installed on the top side of adjacent loading platforms 71 by screws. A placing groove 73 is provided in the detachable tray 72, and a shielding block 74 is placed inside the placing groove 73;

[0084] A structural beam 75 is installed on the top of the vertical frame 2, and several quick hardware clamps 76 are installed on the structural beam 75. The lower end of the pressing rod of the quick hardware clamp 76 is connected with a flat pressing plate 77; the flat pressing plate 77 is relatively located directly above the shielding block 74.

[0085] By adopting this technical solution: the shielding block 74 is pressed inside the placing groove 73 under the action of the quick hardware clamp 76, so that the top of the lower workpiece can be shielded. When the shielding block 74 is damaged and needs to be replaced, directly lifting the quick hardware clamp 76 can release the fixing device of the shielding block 74, which can not only perform normal top-side shielding, but also perform quick maintenance.

[0086] During specific implementation, after the strip carries the workpiece for feeding, the driving ratchet provides the conveying power for the strip inside the conveying groove on the inner side of the bracket 21. During the conveying of the strip inside the conveying groove until discharging, the corresponding shielding and sandblasting processes are respectively carried out to complete the in-line sandblasting operation;

[0087] During the conveying process of the strip inside the conveying groove, the lower part of the strip itself is supported by the strip supporting pins 25 installed on the bracket 21, and the upper part of the strip body is pressed by the strip pressing plate 23 installed on the bracket 21, so as to avoid the strip from warping during the conveying process, realize the limiting of the strip, and increase the positioning accuracy of the workpiece;

[0088] After the strip carries the workpiece to the shielding station, the shielding block 74 at the top will directly provide the shielding operation for the top of the workpiece. At the same time, the second cylinder 603 is activated, and the mounting table 602 at the extending end of the second cylinder 603 will carry the mold table 601 to move. Finally, the sandblasting shielding component 6 on the mold table 601 moves to the position of the workpiece, and the mold body 5 clamped on the sandblasting shielding component 6 is sleeved on the workpiece relatively, completing the lateral shielding of the workpiece.

[0089] After the workpiece shielding is completed, the upper part of the workpiece is sandblasted by the nozzle connected to the fixed downward angle sandblasting module 84, and the lower part of the workpiece is sandblasted by the nozzle connected to the fixed upward angle sandblasting module 83. After the sandblasting is completed, the second cylinder 603 is activated, and the mounting table 602 carries the mold table 601 and the sandblasting shielding component 6 on the mold table 601 back to the original position, waiting for the shielding operation of the next workpiece.

[0090] The workpiece after the sandblasting treatment is finally wound by the winding disc.

[0091] During the whole process, because the length of the strip is limited, the docking process of the new and old strips will be carried out before loading. When the current coil strip is exhausted, the previous coil strip is pulled by the second conveying motor 103 so that the tail end of the previous coil strip is directly below the mold base 105. The first conveying motor 102 and the second conveying motor 103 respectively adjust the position of the strip. The two cutting knives 111 respectively cut the two strips, and the sum of the distances between the nearest workpieces of the two cut strips and the cut is in line with the workpiece spacing requirements. During the cutting process, the first cylinder 106 drives the upper template 107 to press down, and the pressing plate 109 and the upper template 107 act simultaneously, so that the positioning pin 110 presses down and passes through the corresponding positioning holes on the strip, and the position of the strip is positioned. After the strip is positioned, the upper template 107 continues to press down, so that the cutting knife 111 acts on the strip to cut it. The two cut strips can be conveyed to the welding mechanism under the action of the first conveying motor 102 and the second conveying motor 103, and are welded under the action of the welder 113 to connect the strips into one body, ensuring the continuous feeding of the strip carrying the workpiece.

[0092] To sum up, a small part local sandblasting production line equipment of the present invention has the following beneficial effects: The whole equipment consists of a loading component 81, a conveying component 82, a sandblasting component, a sandblasting shielding module 85, a top and side shielding module 86 and a blanking component to form a sandblasting production line. It can not only realize the automatic sandblasting process of small workpieces, but also complete the automatic mechanical shielding during the sandblasting process of small workpieces. The processing cost is low and the time consumption is short. The popularization and application have good economic and social benefits. Therefore, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0093] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A local sandblasting production line equipment for small parts, characterized in that: It includes a loading component (81), a transporting component (82), a sandblasting component, a sandblasting shielding module (85), a top-side shielding module (86) and a discharging component, which are installed on the same production line. The loading component (81) includes a loading tray (1) for loading the strip. The transporting component (82) includes a driving ratchet for driving the strip to move and a main body support stand (2). A plurality of brackets (21) are installed on the side surface of the stand (2) along the same straight line. A transporting groove is formed in the bracket (21). A vertical plate (22) is fixedly provided on the bottom wall of the transporting groove. A pressing plate (23) is connected to the top of the vertical plate (22). A front baffle (24) is detachably connected to the front side of the bracket (21). A supporting pin (25) is rotatably connected to the front baffle (24). The supporting pin (25) correspondingly penetrates into the inside of the transporting groove, and the upper part of the supporting pin (25) fits with the lower surface of the pressing plate (23). The sandblasting component includes a fixed elevation sandblasting module (83) and a fixed depression sandblasting module (84). The sandblasting shielding module (85) includes a plurality of sandblasting shielding components (6) connected to the mold body (5). A plurality of sandblasting shielding components (6) are equidistantly connected to one side of the mold table (601). The mold table (601) is detachably inserted into the upper part of the installation table (602). The installation table (602) is connected to the extending end of the second cylinder (603). The sandblasting shielding component (6) includes a base (61), a rear pressing plate (62) and a front pressing plate (63). The front pressing plate (63) and the rear pressing plate (62) are integrally connected to the base (61) by screws. The mold body (5) is correspondingly pressed between the front pressing plate (63) and the rear pressing plate (62). The top-side shielding module (86) includes a plurality of mounting columns (7) integrally provided with the stand (2). A carrying platform (71) is installed on the front side of each mounting column (7). A detachable tray (72) is installed on the top side of adjacent carrying platforms (71) by screws. A placing groove (73) is formed in the detachable tray (72). A shielding block (74) is placed inside the placing groove (73). A structural beam (75) is installed on the top of the stand (2). A plurality of quick hardware clamps (76) are installed on the structural beam (75). The lower end of the pressing rod of the quick hardware clamp (76) is connected with a flat pressing plate (77). The flat pressing plate (77) is relatively located directly above the shielding block (74). The discharging component includes a winding disc for winding the strip after sandblasting.

2. The local sandblasting production line equipment for small parts according to claim 1, characterized in that: The loading component (81) further includes a transporting mechanism, a cutting mechanism and a welding mechanism for the strip. The transporting mechanism includes a transporting table (101) with a strip transporting groove. A first transporting motor (102) and a second transporting motor (103) are respectively connected to both sides of the transporting table (101). Pulling discs (104) for driving the strip to move are connected to the output shafts of the first transporting motor (102) and the second transporting motor (103). The cutting mechanism is arranged between the first conveying motor (102) and the second conveying motor (103), and includes a die holder (105) installed on the conveying table (101). The top of the die holder (105) is connected with a first cylinder (106), and the extending end of the first cylinder (106) vertically penetrates to the inside of the die holder (105) and is connected with the upper template (107). A lower template (108) is fixedly connected to the lower side inside the die holder (105) corresponding to the upper template (107). A pressing plate (109) is connected to the lower side of the upper template (107) through a spring. Two groups of positioning pins (110) are connected to both sides of the lower surface of the pressing plate (109). Each group of positioning pins (110) penetrates downward through the lower template (108). Two cutting knives (111) for cutting the strip are fixedly arranged on the bottom side of the upper template (107). The cutting knives (111) penetrate downward through the pressing plate (109) and the lower template (108). The welding mechanism includes a welding frame (112) installed on the extending end of a vertical driving cylinder. A welding machine (113) for welding two strips is fixedly arranged on the welding frame (112).

3. The local sandblasting production line equipment for small parts according to claim 2, characterized in that: A camera dimension detection device for detecting the cutting position of the strip is arranged between the welding mechanism and the second conveying motor (103).

4. A local sandblasting production line equipment for small parts according to claim 1, characterized in that: A pressure frame (26) is connected to the bracket (21). A spring piece (27) is connected to the front end of the pressure frame (26). The spring piece (27) is correspondingly pressed on the upper part of the pressure plate (23).

5. A local sandblasting production line device for small parts according to claim 1, characterized in that: The fixed elevation sandblasting module (83) includes a first mounting seat (3). A cantilever seat (31) is horizontally installed on the top of the first mounting seat (3). An inclined mounting surface (32) is arranged in the range where the front end of the cantilever seat (31) extends out of the first mounting seat (3). Limiting grooves (33) are opened on both sides of the mounting surface (32). A first mounting frame (34) is connected to the inside of the limiting grooves (33) through screws. A first clamping handle (35) is connected to the side wall of the first mounting frame (34) through screws. Two first clamping jaws (36) are integrally arranged at the end of the first clamping handle (35). A first clamping groove (37) is opened on the opposite side of the two first clamping jaws (36). A first locking bolt (38) penetrates through the ends of the two first clamping jaws (36).

6. The local sandblasting production line equipment for small parts according to claim 1, characterized in that: The fixed depression sandblasting module (84) includes a second mounting seat (4). A positioning block (41) is connected to the top end of the second mounting seat (4) through screws. An angular mounting groove (42) is opened at one end of the positioning block (41). A second mounting frame (43) is connected to the inside of the mounting groove (42). A second clamping handle (44) is connected to a side wall at the front end of the second mounting frame (43) through screws. Two opposite second clamping jaws (45) are integrally fixed at the top end of the second clamping handle (44). A second clamping groove (46) is opened on the opposite side of the two second clamping jaws (45). A second locking bolt (47) penetrates through the ends of the two second clamping jaws (45).

7. A local sandblasting production line equipment for small parts according to claim 1, characterized in that: Both sides of the rear surface of the mold body (5) are connected with first shielding plates (51); the upper side of the rear surface of the mold body (5) is connected with a second shielding plate (52), and a relief groove (53) is formed in the plate body of the second shielding plate (52).

8. A local sandblasting production line equipment for small parts according to claim 1, characterized in that: The blanking assembly further includes a photographing detection device for inspecting the cutting situation and photographing and detecting the relevant dimensions of the workpiece and the strip.

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