A printed structure of molybdenum disulfide

Abstract

The utility model discloses a printing structure of molybdenum disulfide, including a frame, a clamping mechanism arranged on the frame, and a printing mechanism arranged above the clamping mechanism; the clamping mechanism includes a base, a movable plate arranged on the base in a vertically slidable manner, a positioning claw rotatably connected to the movable plate, a rotating mechanism for driving the positioning claw to rotate, and a lifting mechanism installed on the base, the positioning claw is provided with a convex portion matching the inner cavity of the piston and a suction cup arranged on the convex portion, and the lifting mechanism is used to drive the movable plate to move up and down; the printing mechanism includes a first linear module, a screen printing plate arranged at the output end of the first linear module, a first lifting assembly arranged on the frame, and a scraper arranged at the output end of the first lifting assembly, and the scraper acts on the screen printing plate. The printing structure of molybdenum disulfide provided by the utility model can realize the printing of molybdenum disulfide coating on the surfaces of two piston skirts on the piston, and the printing position is accurate and the printing quality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of piston printing equipment, in particular to a printing structure of molybdenum disulfide. Background Art

[0002] Pistons are widely used in engines. When the fuel is burning, the piston reciprocates along the cylinder wall. In order to make the piston have good high temperature resistance and wear resistance, it is necessary to provide a molybdenum disulfide coating on the piston skirt surface. Combined with the high temperature resistance, extrusion resistance, and good self-lubrication characteristics of molybdenum disulfide, the piston can meet the development needs of high speed and high load of the engine.

[0003] The traditional way to coat molybdenum disulfide on a piston is by spraying. However, the spraying method causes the coating material to adhere not only to the piston parts that require coating, but also to parts that do not require sealing and wear resistance. In addition, some coating materials do not adhere to the piston, but scatter around the piston, thereby wasting the coating material in vain.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a printing structure of molybdenum disulfide, which can print a molybdenum disulfide coating on a piston by screen printing, with accurate printing position and good printing quality.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A printing structure for molybdenum disulfide comprises a frame, a clamping mechanism arranged on the frame, and a printing mechanism arranged above the clamping mechanism; the clamping mechanism comprises a base, a movable plate arranged on the base in a vertically slidable manner, a positioning claw rotatably connected to the movable plate, a rotating mechanism for driving the positioning claw to rotate, and a lifting mechanism installed on the base, the positioning claw is provided with a convex portion matching the inner cavity of a piston and a suction cup arranged on the convex portion, and the lifting mechanism is used to drive the movable plate to move up and down; the printing mechanism comprises a first linear module, a screen printing plate arranged at the output end of the first linear module, a first lifting assembly arranged on the frame, and a scraper arranged at the output end of the first lifting assembly, and the scraper acts on the screen printing plate.

[0008] Furthermore, it also includes a clamping mechanism, which includes a driving motor arranged on a base, a swing arm arranged on an output shaft of the driving motor, and a pressure block rotatably connected to the end of the swing arm, and the pressure block presses the piston onto the positioning claw.

[0009] Furthermore, the rotating mechanism includes a second lifting assembly arranged on the base, a rack arranged vertically slidably on the movable plate, a driving pulley rotatably connected to the movable plate, a driven pulley arranged on the positioning claw, and a transmission belt sleeved on the driving pulley and the driven pulley, the driving pulley is provided with a gear meshing with the rack, and the second lifting assembly is used to push the rack to move upward.

[0010] Furthermore, a first impact block is provided at the upper end of the rack and a second impact block is provided at the lower end, and the movable plate is provided with a first sensor for detecting the position of the first impact block and a first limit block for limiting the position of the second impact block.

[0011] Furthermore, the positioning claw includes a connecting shaft rotatably connected to the movable plate, and a mounting platform connected to the connecting shaft, the convex portion is arranged on the mounting platform, the driven pulley is arranged on the connecting shaft, a through hole extending along its axial center line is opened in the connecting shaft, one end of the through hole is connected to a rotating joint, and the other end thereof extends to the convex portion.

[0012] Furthermore, the lifting mechanism includes a second linear module and a top block arranged at the output end of the second linear module, the top block is used to push the movable plate to move upward, and the second lifting assembly is installed at the output end of the second linear module.

[0013] Furthermore, the movable plate is provided with a third impact block, the upper part of the base is provided with a second limit block for limiting the position of the third impact block, and the lower part is provided with a second sensor for detecting the position of the third impact block.

[0014] Furthermore, the output end of the first linear module is provided with a mounting seat, two cantilever beams vertically slidably arranged on the mounting seat, and a fixing clamp horizontally slidably arranged on the cantilever beams. The fixing clamp is a type structure, and a first adjusting screw is threadedly connected to the fixing clamp, and a pressure plate is connected to the lower end of the first adjusting screw.

[0015] Furthermore, two brackets are provided on the mounting seat, one cantilever beam is slidingly connected to one bracket respectively, a second adjusting screw is rotatably connected to the bracket, and the second adjusting screw is threadedly connected to the cantilever beam.

[0016] Furthermore, a third adjusting screw is rotatably connected to the cantilever beam, and the third adjusting screw is threadably connected to the fixing clamp.

[0017] Beneficial effects: The molybdenum disulfide printing structure provided by the utility model fixes the piston on the positioning claw, the rotating mechanism drives the piston to rotate one circle, and the first linear module drives the screen printing plate to make a translational motion, the scraper moves on the screen printing plate, and the molybdenum disulfide on the screen printing plate is squeezed by the scraper and adheres to the surfaces of the two piston skirts through the mesh holes on the screen printing plate, thereby realizing the function of printing the molybdenum disulfide coating on the piston, and the printing position is accurate and the printing quality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the piston.

[0019] Figure 2 The three-dimensional printed structure of molybdenum disulfide provided by the utility model Figure 1 .

[0020] Figure 3 The three-dimensional printed structure of molybdenum disulfide provided by the utility model Figure 2 .

[0021] Figure 4 A three-dimensional structure of a clamping mechanism in a printing structure of molybdenum disulfide provided by the utility model Figure 1 .

[0022] Figure 5 A three-dimensional structure of a clamping mechanism in a printing structure of molybdenum disulfide provided by the utility model Figure 2 .

[0023] Figure 6 This is a three-dimensional diagram of the rotating mechanism in the molybdenum disulfide printing structure provided by the utility model.

[0024] Figure 7 This is a three-dimensional diagram of the positioning claws in the molybdenum disulfide printing structure provided by the utility model.

[0025] Figure 8 This is a three-dimensional diagram of the printing mechanism in the molybdenum disulfide printing structure provided by the utility model.

[0026] Description of main component symbols: Frame A, door frame A1;

[0027] Clamping mechanism B, base B1, movable plate B2, third impact block B21, second limit block B22, second sensor B23, positioning claw B3, convex part B31, suction cup B32, connecting shaft B33, mounting platform B34, rotary joint B35, rotating mechanism B4, second lifting component B41, rack B42, first impact block B421, second impact block B422, first sensor B423, first limit block B424, driving pulley B43, second adjustment seat B431, second waist hole B432, driven pulley B44, transmission belt B45, gear B46, first adjustment seat B47, tensioning pulley B471, first waist hole B472, lifting mechanism B5, second linear module B51, top block B52, clamping mechanism B6, drive motor B61, swing arm B62, pressing block B63;

[0028] Printing mechanism C, first linear module C1, screen printing plate C2, first lifting assembly C3, scraper C4, mounting seat C5, bracket C51, second adjusting screw C52, cantilever beam C6, third adjusting screw C61, fixing clamp C7, first adjusting screw C71, pressing plate C72;

[0029] Piston n, piston crown n1, piston skirt n2. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The structure of piston n is as follows Figure 1 As shown, the piston n includes a piston top n1 and a piston skirt n2, and the piston skirt n2 is close to the piston top n1 to form the lower half of the piston. The utility model provides a molybdenum disulfide printing structure in which a molybdenum disulfide coating is printed on the surface of two piston skirts n2 to improve the self-lubrication and wear resistance of the piston.

[0032] See also Figure 2-8 The utility model provides a printing structure of molybdenum disulfide, including a frame A, a clamping mechanism B arranged on the frame A, and a printing mechanism C arranged above the clamping mechanism B; the clamping mechanism B includes a base B1, a movable plate B2 arranged on the base B1 in a vertically slidable manner, a positioning claw B3 rotatably connected to the movable plate B2, a rotating mechanism B4 for driving the positioning claw B3 to rotate, and a lifting mechanism B5 installed on the base B1, the positioning claw B3 is provided with a convex portion B31 matching the inner cavity of the piston and a suction cup B32 arranged on the convex portion B31, and the lifting mechanism B5 is used to drive the movable plate B2 to move up and down; the printing mechanism C includes a first linear module C1, a screen printing plate C2 arranged at the output end of the first linear module C1, a first lifting component C3 arranged on the frame A, and a scraper C4 arranged at the output end of the first lifting component C3, and the scraper C4 acts on the screen printing plate C2. Specifically, a portal frame A1 is provided on the frame A, and the first linear module C1 and the first lifting assembly C3 are both installed on the portal frame A1, so that the scraper C4 and the screen printing plate C2 are both located above the clamping mechanism B.

[0033] When working, the piston is placed on the convex part B31 of the positioning claw B3 and fixed by the suction cup B32; the lifting mechanism B5 drives the movable plate B2 to move upward, so that the piston surface is close to the lower surface of the screen printing plate C2. The screen printing plate C2 carries molybdenum disulfide paint, and the screen printing plate C2 is provided with mesh holes consistent with the printing pattern, and the molybdenum disulfide paint can be printed on the piston skirt through the mesh holes. During printing, the first lifting component C3 drives the scraper C4 to move downward, and the scraper C4 acts on the screen printing plate C2. At this time, the screen printing plate C2 is located between the scraper C4 and the piston; then the first linear module C1 drives the screen printing plate C2 to move horizontally. At the same time, the rotating mechanism B4 drives the positioning claw B3 to rotate. The molybdenum disulfide coating is squeezed by the scraper C4 and adheres to the surface of the piston skirt through the mesh, thereby realizing the function of printing the molybdenum disulfide coating on the piston. With the cooperation of the lifting mechanism B5 and the rotating mechanism B4, the height and rotation angle of the piston during printing can be controlled to improve the printing accuracy and quality.

[0034] Optionally, the first lifting assembly C3 is a cylinder that drives the scraper C4 to move up and down. The first lifting assembly C3 drives the scraper C4 to descend until its bottom is close to the screen printing plate C2, and the first linear module C1 drives the screen printing plate C2 to move in translation. During the printing process, the molybdenum disulfide coating is squeezed from the mesh into the piston by the scraper C4.

[0035] In a preferred embodiment, see Figure 5 , and also includes a clamping mechanism B6, which includes a driving motor B61 disposed on the base B1, a swing arm B62 disposed on the output shaft of the driving motor B61, and a pressing block B63 rotatably connected to the end of the swing arm B62, and the pressing block B63 presses the piston on the positioning claw B3. The driving motor B61 drives the swing arm B62 to swing upward, so that the pressing block B63 acts on the surface of the piston to press the piston on the positioning claw B3, so as to further improve the stability of the piston installation.

[0036] In a preferred embodiment, see Figure 3 , 4The rotating mechanism B4 includes a second lifting component B41 arranged on the base B1, a rack B42 arranged on the movable plate B2 in a vertically slidable manner, a driving pulley B43 rotatably connected to the movable plate B2, a driven pulley B44 arranged on the positioning claw B3, and a transmission belt B45 sleeved on the driving pulley B43 and the driven pulley B44. The driving pulley B43 is provided with a gear B46 meshing with the rack B42. The second lifting component B41 is used to push the rack B42 to move upward. Optionally, the second lifting component B41 is an electric push rod, and the extension rod of the electric push rod is extended to drive the rack B42 to move upward. When the extension rod of the electric push rod is retracted, the rack B42 slides downward due to its own weight. The rack B42 meshes with the gear B46 during the upward movement to drive the active pulley B43 to rotate. The active pulley B43, the driven pulley B44 and the transmission belt B45 cooperate to drive the positioning claw B3 to rotate, thereby driving the piston to rotate one circle, so that the printing mechanism C can print the molybdenum disulfide coating on the surfaces of the two piston skirts.

[0037] It should be noted that during the printing process, the screen printing plate C2 slides horizontally and the piston rotates. Therefore, it is only necessary to open mesh holes with the same pattern as the one to be printed in the area corresponding to the position of the piston skirt on the screen printing plate C2. In this way, the molybdenum disulfide coating can be accurately printed on the piston skirt.

[0038] Specifically, see Figure 5 The rotating mechanism B4 further includes a first adjusting seat B47 disposed on the movable plate B2, and a tensioning pulley B471 rotatably connected to the first adjusting seat B47, and the transmission belt B45 is sleeved on the tensioning pulley B471. The first adjusting seat B47 is provided with a first waist hole B472 extending in the horizontal direction, and the first waist hole B472 is fixed to the movable plate B2 by screws to adjust the installation position of the tensioning pulley B471, thereby adjusting the tension of the transmission belt B45.

[0039] The mounting seat C5 is provided with a second adjustment seat B431, on which the gear B46 and the driving pulley B43 are rotatably arranged, and the second adjustment seat B431 is provided with a second waist hole B432 extending in the horizontal direction, which is fixed to the mounting seat C5 by screws to adjust the distance between the gear B46 and the rack B42 to ensure that the gear B46 and the rack B42 are meshed.

[0040] Further, see Figure 6The upper end of the rack B42 is provided with a first collision block B421 and the lower end is provided with a second collision block B422. The movable plate B2 is provided with a first sensor B423 for detecting the position of the first collision block B421 and a first limit block B424 for limiting the position of the second collision block B422. The second lifting component B41 drives the rack B42 to move upward, and the second collision block B422 collides with the first limit block B424. At this time, the piston has rotated one circle and the printing process is completed; the second lifting component B41 is reset, the rack B42 moves downward due to its own weight, and the first sensor B423 detects the first collision block B421, that is, the rack B42 has been reset.

[0041] In a preferred embodiment, see Figure 7 The positioning claw B3 includes a connecting shaft B33 rotatably connected to the movable plate B2, and a mounting platform B34 connected to the connecting shaft B33. The convex portion B31 is arranged on the mounting platform B34, and the driven pulley B44 is arranged on the connecting shaft B33. A through hole extending along its axis is opened in the connecting shaft B33. One end of the through hole is connected to a rotary joint B35, and the other end thereof extends to the convex portion B31. The suction cup B32 is connected to the end of the through hole located on the convex portion B31. By setting the rotary joint B35, the stability of the connection between the rotary joint B35 and the through hole is ensured when the positioning claw B3 rotates. The rotary joint B35 is externally connected to a vacuum pumping device, and the suction cup B32 forms a negative pressure to adsorb and fix the piston.

[0042] In a preferred embodiment, see Figure 4 The lifting mechanism B5 includes a second linear module B51 and a top block B52 disposed on the second linear module B51. The top block B52 is used to push the movable plate B2 upward. The second lifting assembly B41 is installed at the output end of the second linear module B51. The second linear module B51 drives the top block B52 and the second lifting assembly B41 to move upward synchronously. The top block B52 pushes the movable plate B2 upward, so that the piston moves to the lower surface of the screen printing plate C2. Then, the second lifting assembly B41 drives the rack B42 to move upward. The piston rotates one circle, and the printing mechanism C prints the molybdenum disulfide coating on the two piston skirts of the piston. When the second linear module B51 drives the top block B52 to move downward, the movable plate B2 slides downward due to its own weight.

[0043] Further, see Figure 6 The movable plate B2 is provided with a third collision block B21, and the upper part of the base B1 is provided with a second limit block B22 for limiting the position of the third collision block B21, and the lower part is provided with a second sensor B23 for detecting the position of the third collision block B21. When the movable plate B2 moves upward and the third collision block B21 abuts against the second limit block B22, the movable plate B2 moves to the printing station; when the movable plate B2 moves downward due to its own weight, the second sensor B23 detects the third collision block B21, and the movable plate B2 is reset.

[0044] In a preferred embodiment, see Figure 8 The output end of the first linear module C1 is provided with a mounting seat C5, two cantilever beams C6 which can be vertically slidably arranged on the mounting seat C5, and a fixing clamp C7 which can be horizontally slidably arranged on the cantilever beam C6. The fixing clamp C7 is a C-shaped structure. The fixing clamp C7 is threadedly connected with a first adjusting screw C71, and the lower end of the first adjusting screw C71 is connected with a pressing plate C72. The two fixing clamps C7 are respectively used to fix the corresponding two sides of the screen printing plate C2. When the first adjusting screw C71 is screwed in, the pressing plate C72 presses the screen printing plate C2 against the fixing clamp C7 to ensure the stability of the installation of the screen printing plate C2. When the first adjusting screw C71 is screwed out, the pressing plate C72 is away from the screen printing plate C2, which is convenient for installing and removing the screen printing plate C2.

[0045] Furthermore, the mounting seat C5 is provided with two brackets C51, one cantilever beam C6 is slidably connected to one bracket C51, and a second adjusting screw C52 is rotatably connected to the bracket C51, and the second adjusting screw C52 is threadedly connected to the cantilever beam C6. The second adjusting screw C52 is rotated to adjust the installation height of the cantilever beam C6.

[0046] Furthermore, a third adjusting screw C61 is rotatably connected to the cantilever beam C6, and the third adjusting screw C61 is threadedly connected to the fixing clamp C7. The third adjusting screw C61 is rotated to adjust the installation position of the fixing clamp C7.

[0047] In the above, the installation position of the screen printing plate C2 can be adjusted through the first linear module C1, the second adjusting screw C52 and the third adjusting screw C61, and the initial position of the piston during printing can be controlled through the rotating mechanism B4. The two cooperate so that the printing mechanism C can accurately print the molybdenum disulfide coating on the piston skirt surface of the piston, thereby ensuring the printing position accuracy and printing quality.

[0048] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A printed structure of molybdenum disulfide, characterized in that: It includes a frame, a clamping mechanism arranged on the frame, and a printing mechanism arranged above the clamping mechanism; the clamping mechanism includes a base, a movable plate arranged on the base in a vertically slidable manner, a positioning claw rotatably connected to the movable plate, a rotating mechanism for driving the positioning claw to rotate, and a lifting mechanism installed on the base, the positioning claw is provided with a convex portion matching the inner cavity of the piston and a suction cup arranged on the convex portion, and the lifting mechanism is used to drive the movable plate to perform lifting and lowering movements; the printing mechanism includes a first linear module, a screen printing plate arranged at the output end of the first linear module, a first lifting component arranged on the frame, and a scraper arranged at the output end of the first lifting component, and the scraper acts on the screen printing plate.

2. The printed structure of molybdenum disulfide according to claim 1, characterized in that: It also includes a clamping mechanism, which includes a driving motor arranged on a base, a swing arm arranged on an output shaft of the driving motor, and a pressing block rotatably connected to the end of the swing arm, and the pressing block presses the piston onto the positioning claw.

3. The printed structure of molybdenum disulfide according to claim 1, characterized in that: The rotating mechanism includes a second lifting assembly arranged on the base, a rack arranged on the movable plate in a vertically slidable manner, a driving pulley rotatably connected to the movable plate, a driven pulley arranged on the positioning claw, and a transmission belt sleeved on the driving pulley and the driven pulley, the driving pulley is provided with a gear meshing with the rack, and the second lifting assembly is used to push the rack to move upward.

4. The printed structure of molybdenum disulfide according to claim 3, characterized in that: The upper end of the rack is provided with a first collision block and the lower end is provided with a second collision block, and the movable plate is provided with a first sensor for detecting the position of the first collision block and a first limit block for limiting the position of the second collision block.

5. The printed structure of molybdenum disulfide according to claim 3, characterized in that: The positioning claw includes a connecting shaft rotatably connected to the movable plate, and a mounting platform connected to the connecting shaft, the convex portion is arranged on the mounting platform, the driven pulley is arranged on the connecting shaft, a through hole extending along its axis is opened in the connecting shaft, one end of the through hole is connected to a rotating joint, and the other end thereof extends to the convex portion.

6. The printed structure of molybdenum disulfide according to claim 3, characterized in that: The lifting mechanism includes a second linear module and a top block arranged at the output end of the second linear module, the top block is used to push the movable plate to move upward, and the second lifting component is installed at the output end of the second linear module.

7. The printed structure of molybdenum disulfide according to claim 1, characterized in that: The movable plate is provided with a third collision block, the upper part of the base is provided with a second limit block for limiting the position of the third collision block, and the lower part is provided with a second sensor for detecting the position of the third collision block.

8. The printed structure of molybdenum disulfide according to claim 1, characterized in that: The output end of the first linear module is provided with a mounting seat, two cantilever beams vertically slidably arranged on the mounting seat, and a fixing clamp horizontally slidably arranged on the cantilever beams. The fixing clamp is a type structure, and a first adjusting screw is threadedly connected to the fixing clamp, and a pressure plate is connected to the lower end of the first adjusting screw.

9. The printed structure of molybdenum disulfide according to claim 8, characterized in that: The mounting seat is provided with two brackets, one cantilever beam is slidably connected to one bracket respectively, a second adjusting screw is rotatably connected to the bracket, and the second adjusting screw is threadedly connected to the cantilever beam.

10. The printed structure of molybdenum disulfide according to claim 8, characterized in that: The cantilever beam is rotatably connected with a third adjusting screw, and the third adjusting screw is threadedly connected with the fixing clamp.

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