Online solder paste scraping mechanism of printing machine

Abstract

The utility model discloses a printing machine on-line solder paste scraping mechanism which comprises a driving device, a connecting frame, a linkage lifting piece and a scraper assembly, the linkage lifting piece comprises a driving rod and a driven rod, the driving rod comprises a first connecting rod, a first gear, a first lead screw and a first lifting block, and the driving device is connected with the first connecting rod. The first lead screw is arranged at the bottom end of the first connecting rod, the bottom end of the first connecting rod is sleeved with the first gear, and the first lead screw is sleeved with the first lifting block; the driven rod comprises a second connecting rod, a second gear, a second lead screw and a second lifting block, the second lead screw is arranged at the bottom end of the second connecting rod, the bottom end of the second connecting rod is sleeved with the second gear, and the second lead screw is sleeved with the second lifting block; the top of the scraper assembly is provided with a connecting piece, and the first lifting block and the second lifting block are connected through the connecting piece. According to the online solder paste scraping mechanism of the printing machine, the two scraper assemblies can be conveniently controlled to move up and down through one driving device, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB production, in particular to an online solder paste scraping mechanism for a printing machine. Background Art

[0002] The scraper mechanism of a printing machine generally includes two scrapers, and the two scrapers are driven up and down by two driving devices respectively. The existing printing includes two back and forth strokes, and different scrapers are used for the two strokes. Therefore, the two scrapers are always in an up and down state during the printing process. The existing technology uses two driving devices, which is relatively costly and there is room for improvement. Utility Model Content

[0003] In view of the above problems, the utility model provides an online solder paste scraping mechanism for a printing machine, which is convenient for controlling the up and down movement of two scraper assemblies through a driving device, thereby saving costs.

[0004] The technical solution of the utility model is as follows:

[0005] 1. The operative member of claim 1, wherein the first and second gears are connected to each other via a threaded connection to form a plurality of cams, wherein the plurality of cams are connected to each other via a threaded connection to form a plurality of cams. The plurality of cams are connected to each other via a threaded connection to form a plurality of cams. The plurality of cams are connected to each other via a threaded connection to form a plurality of cams. The plurality of cams are connected to each other via a threaded connection to form a plurality of cams.

[0006] The scraper assemblies include two, each of which is provided with a connecting piece on the top. The scraper assemblies are connected to the first lifting block and the second lifting block through the connecting piece, and one side of the connecting piece is slidably connected to the connecting frame in the vertical direction.

[0007] In a further technical solution, the connecting frame includes a top plate, a side plate and a bottom plate, the top plate and the bottom plate are parallel, the side plate is vertically arranged between the top plate and the bottom plate, the bottom end of the first screw rod and the bottom end of the second screw rod are respectively rotatably connected to the bottom plate, the connecting member includes a connecting block and a mounting block, the mounting block is arranged at the bottom of the connecting block, and limiting openings are provided on both sides of the bottom plate, the top of the connecting block passes through the limiting openings to connect the first lifting block and the second lifting block respectively, and the connecting block is slidably connected to the side plate.

[0008] In a further technical solution, a mounting groove is provided at the bottom of the mounting block, and a clamping head and a through hole are respectively provided on the two opposite side walls of the mounting groove. A split block for connecting the mounting groove is provided on the top of the scraper assembly, and a clamping groove matching the clamping head is provided on one side of the split block, and a screw hole is provided on the other side.

[0009] In a further technical solution, bearings connecting the first screw rod end and the second screw rod end are respectively provided on the base plate.

[0010] In a further technical solution, a connecting tube rotatably connected to the top end of the second connecting rod is provided on the bottom side of the top plate.

[0011] In a further technical solution, the driving device is a servo motor.

[0012] The beneficial effects of the utility model are:

[0013] 1. The connecting frame connected by the mechanism is connected to the printing press, the driving device can rotate the first connecting rod, the first gear meshes with the second gear to realize the first connecting rod and the second connecting rod to rotate in opposite directions, because the first screw rod and the second screw rod have the same rotation direction but opposite rotation directions, therefore, under the premise that the connecting member slides to connect the connecting member to realize the limit, the first lifting block and the second lifting block will move in opposite directions along the vertical direction, so as to realize the lifting and lowering of the connected scraper assemblies, and the two scraper assemblies are driven by one driving device, with a simple structure and low cost;

[0014] 2. After the split block on the scraper assembly is inserted into the card slot, the screw hole of the split block is aligned with the through hole and then connected with bolts to facilitate the disassembly and assembly of the scraper assembly;

[0015] 3. The provision of bearings and connecting tubes can improve the stability of the relative movement of the linkage lifting member to the connecting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an online solder paste scraping mechanism of a printing machine described in an embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the connection between the mounting block and the scraper assembly described in the embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 10. Driving device; 21. Top plate; 22. Side plate; 23. Bottom plate; 24. Connecting tube; 31. First connecting rod; 32. First gear; 33. First screw rod; 34. First lifting block; 41. Second connecting rod; 42. Second gear; 43. Second screw rod; 44. Second lifting block; 50. Scraper assembly; 61. Connecting block; 62. Mounting block; 63. Chuck; 64. Splitting block. DETAILED DESCRIPTION

[0020] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0021] Example:

[0022] like Figure 1-Figure 2 As shown, an online solder paste scraping mechanism of a printing machine includes a driving device 10, a connecting frame, a linkage lifting member and a scraper assembly 50, the connecting frame includes a top plate 21, a side plate 22 and a bottom plate 23, the top plate 21 and the bottom plate 23 are parallel, the side plate 22 is vertically arranged between the top plate 21 and the bottom plate 23, the linkage lifting member includes an active rod and a driven rod, the active rod and the driven rod are parallel and vertically arranged between the top plate 21 and the bottom plate 23, the active rod includes a first connecting rod 31, a first gear 32, a first screw rod 33 and a first gear 34. A lifting block 34, the driving device 10 can be a servo motor, which is arranged on the top of the top plate 21, the shaft of the servo motor passes through the top plate 21 and is connected to the top of the first connecting rod 31, the first screw rod 33 is arranged at the bottom end of the first connecting rod 31, and the first screw rod 33 coincides with the central axis of the first connecting rod 31, the first gear 32 is sleeved at the bottom end of the first connecting rod 31, the first lifting block 34 is provided with a first screw hole matching the first screw rod 33, and is sleeved on the outside of the first screw rod 33 through the first screw hole; the driven rod is arranged on the active rod The second side of the second connecting rod 41 includes a second connecting rod 41, a second gear 42, a second screw rod 43 and a second lifting block 44. The second screw rod 43 is arranged at the bottom end of the second connecting rod 41, and the second screw rod 43 coincides with the central axis of the second connecting rod 41. The second gear 42 is sleeved at the bottom end of the second connecting rod 41. The second lifting block 44 has a second screw hole matching the second screw rod 43, and is sleeved on the outer side of the second screw rod 43 through the second screw hole. The first gear 32 is meshed with the second gear 42, and the first screw rod 33 and the second screw rod 44 are meshed. 3 have the same rotation direction; a bearing is arranged on the bottom plate 23, and the bottom end of the first screw rod 33 and the bottom end of the second screw rod 43 are respectively rotatably connected to the bottom plate 23 through the bearing; the scraper assembly 50 includes two, and the tops are respectively provided with connecting members, and the connecting members include a connecting block 61 and a mounting block 62, and the mounting block 62 is arranged at the bottom of the connecting block 61, and limiting openings are arranged on both sides of the bottom plate 23, and the top of the connecting block 61 passes through the limiting openings to connect the first lifting block 34 and the second lifting block 44 respectively, and the connecting block 61 is slidably connected to the side plate 22.

[0023] The working principle of the above technical solution is as follows:

[0024] The connecting frame is installed on the existing printing machine equipment, and the initial positions of the first lifting block 34 and the second lifting block 44 can be at the same height. When adjusting the height of the scraper assembly 50, the servo motor is started to rotate the active rod, the first gear 32 engages the second gear 42 to rotate the driven rod, and the first screw rod 33 and the second screw rod 43 rotate in opposite directions, so that the first lifting block 34 and the second lifting block 44 move in opposite directions in the vertical direction, and one scraper assembly 50 is raised while the other scraper assembly 50 is lowered.

[0025] In another embodiment, if Figure 2 As shown, a mounting groove is provided at the bottom of the mounting block 62, and a clamp 63 and a through hole are respectively provided on the two opposite side walls of the mounting groove. A split block 64 for connecting the mounting groove is provided on the top of the scraper assembly 50, and a clamp groove matching the clamp 63 is provided on one side of the split block 64, and a screw hole is provided on the other side.

[0026] After the split block 64 on the scraper assembly 50 is inserted into the clamping head 63 in the clamping groove, the screw hole of the split block 64 is aligned with the through hole and then connected with bolts, so as to facilitate the disassembly and assembly of the scraper assembly 50.

[0027] In another embodiment, if Figure 1 As shown, the bottom side of the top plate 21 is provided with a connecting tube 24 which is rotatably connected to the top end of the second connecting rod 41. The top end of the second connecting rod 41 is stably supported.

[0028] The above embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A printing machine online solder paste scraping mechanism, characterized in that: The invention relates to a method for raising and lowering a gear train of the gear train, wherein the gear train is arranged on a bottom end of the gear train, and the gear train is connected to the gear train of the gear train through a first screw hole and a second screw hole. The gear train is arranged on the bottom end of the gear train, and the gear train is connected to the gear train of the gear train through a first screw hole. The gear train is arranged on the bottom end of the gear train, and the gear train is connected to the gear train of the gear train through a second screw hole. The scraper assemblies include two, each of which is provided with a connecting piece on the top. The scraper assemblies are connected to the first lifting block and the second lifting block through the connecting piece, and one side of the connecting piece is slidably connected to the connecting frame in the vertical direction.

2. The online solder paste scraping mechanism for a printing machine according to claim 1, characterized in that: The connecting frame includes a top plate, a side plate and a bottom plate, the top plate and the bottom plate are parallel, the side plate is vertically arranged between the top plate and the bottom plate, the bottom end of the first screw rod and the bottom end of the second screw rod are respectively rotatably connected to the bottom plate, the connecting member includes a connecting block and a mounting block, the mounting block is arranged at the bottom of the connecting block, and limiting openings are provided on both sides of the bottom plate, the top of the connecting block passes through the limiting openings to connect the first lifting block and the second lifting block respectively, and the connecting block is slidably connected to the side plate.

3. The online solder paste scraping mechanism of a printing machine according to claim 2, characterized in that: A mounting groove is provided at the bottom of the mounting block, and a clamping head and a through hole are respectively provided on two opposite side walls of the mounting groove. A split block for connecting the mounting groove is provided on the top of the scraper assembly, and a clamping groove matching the clamping head is provided on one side of the split block, and a screw hole is provided on the other side.

4. The online solder paste scraping mechanism for a printing machine according to claim 2, characterized in that: The bottom plate is provided with bearings respectively connected to the first screw rod end and the second screw rod end.

5. The online solder paste scraping mechanism for a printing machine according to claim 4, characterized in that: A connecting tube rotatably connected to the top end of the second connecting rod is provided on the bottom side of the top plate.

6. The online solder paste scraping mechanism for a printing machine according to claim 1, characterized in that: The driving device is a servo motor.

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