Cleaning device for SMT printing machine

Abstract

The utility model relates to the technical field of SMT printing machines, in particular to a cleaning device for an SMT printing machine. A first connecting block is fixed to the bottom of the tool apron, a sliding groove is formed in the bottom of the tool apron, a sliding block is installed in the sliding groove, and a second connecting block is fixed to the bottom of the sliding block; according to the solder paste cleaning device, by starting the hydraulic cylinder, the hydraulic cylinder can drive the cleaning sleeve to descend through the hydraulic rod, solder paste on the surface of the scraper can be cleaned when the cleaning sleeve descends, and the solder paste on the surface of the scraper can be cleaned through the cleaning sleeve; due to the fact that the cleaning sleeve is arranged outside the scraper, the whole cleaning sleeve wraps the scraper, the cleaning efficiency of the scraper is improved, the scraper cannot block movement of the cleaning sleeve, and the cleaning efficiency of the scraper is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of SMT printers, in particular to a cleaning device for an SMT printer. Background Art

[0002] The SMT printer is a key link in the SMT production line. It evenly applies the solder paste for welding on the surface of the printed circuit board by using the cooperation of a squeegee and a stencil, and is used to weld the electronic components required on the circuit board.

[0003] The Chinese Patent Network discloses an automatic cleaning device for an SMT printer, with the publication number CN217753199U. Although it can effectively clean the solder paste on the surface of the squeegee, thus preventing the solder paste from being contaminated by dust during the long adhesion time, and further preventing the contamination of other solder paste, which is beneficial to preventing the overall welding quality from being affected due to the reduction of solder paste quality. However, due to the small cleaning block, its cleaning efficiency for the squeegee is low, and combined with the comparative document Figure 2 it can be seen that the angle of the squeegee is large, the movement of the cleaning block may be blocked by the squeegee, and the spring may not work properly, and there are obvious limitations as a whole.

[0004] Therefore, a cleaning device for an SMT printer is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cleaning device for an SMT printer.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cleaning device for an SMT printer, comprising:

[0008] A tool holder;

[0009] A first connecting block is fixed to the bottom of the tool holder. A chute is opened at the bottom of the tool holder, and a slider is installed in the chute. A second connecting block is fixed to the bottom of the slider;

[0010] First connecting grooves and second connecting grooves are respectively opened at the opposite ends of the first connecting block and the second connecting block;

[0011] An installation strip is connected in the first connecting groove and the second connecting groove, and a squeegee is fixed to the bottom of the installation strip;

[0012] A cleaning sleeve is arranged outside the squeegee.

[0013] Preferably, a first connecting ear is fixed to the bottom of the tool holder. A connecting sleeve is fixed to one end of the first connecting ear close to the second connecting block. A connecting rod is arranged inside the connecting sleeve. One end of the connecting rod close to the second connecting block is rotatably connected to the second connecting block.

[0014] Preferably, an internal thread is provided on the inner wall of the connecting sleeve, and an external thread is provided on the outer wall of the connecting rod. The connecting rod is threadedly connected inside the connecting sleeve through the cooperation of the external thread and the internal thread.

[0015] Preferably, a first rotating shaft is fixed to the outer wall of the connecting rod.

[0016] Preferably, a hydraulic cylinder is installed at the bottom of the tool holder, and a hydraulic rod is installed at the bottom of the hydraulic cylinder;

[0017] A second connecting ear is fixed to the outer wall of the cleaning sleeve, and a receiving sleeve is fixed to the top of the second connecting ear;

[0018] The receiving sleeve is located outside the hydraulic rod.

[0019] Preferably, a threaded hole is formed in the outer wall of the receiving sleeve, and a clamping hole is formed in the outer wall of the hydraulic rod;

[0020] A threaded member is threadedly connected in the threaded hole. One end of the threaded member is fixed with a second rotating shaft, and the other end of the threaded member is clamped inside the clamping hole.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] By starting the hydraulic cylinder, the hydraulic cylinder drives the cleaning sleeve to move downward through the hydraulic rod. When the cleaning sleeve moves downward, the solder paste on the surface of the scraper is cleaned. Since the cleaning sleeve is arranged outside the scraper and the cleaning sleeve wraps the scraper as a whole, the cleaning efficiency of the scraper is improved, and the scraper will not block the movement of the cleaning sleeve, further improving the cleaning efficiency of the scraper;

[0023] And by rotating the second rotating shaft, the second rotating shaft drives the threaded member to move in the threaded hole. After one end of the threaded member disengages from the clamping hole, the cleaning sleeve can be disassembled. On the one hand, it is convenient to clean and maintain the cleaning sleeve, improving the working efficiency of the cleaning sleeve. On the other hand, it also avoids the cleaning sleeve from hindering the disassembly work of the scraper.

[0024] Since the connecting rod is threadedly connected inside the connecting sleeve through the cooperation of the external thread and the internal thread, the connecting rod can be rotated through the first rotating shaft. At this time, the connecting rod moves inside the connecting sleeve, and the second connecting block gradually moves away from the first connecting block. Subsequently, the mounting strip can be taken out from the first connecting groove and the second connecting groove to achieve the purpose of disassembling the scraper. Therefore, the present utility model is convenient for disassembling and maintaining the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a partial structural schematic diagram of the utility model;

[0027] Figure 3 It is a schematic diagram of the structure of the threaded member in the utility model;

[0028] Figure 4 It is a schematic diagram of the connecting sleeve and connecting rod structure in the utility model.

[0029] In the figure: 1. knife holder; 2. first connecting block; 3. first connecting groove; 4. slide groove; 5. slide block; 6. second connecting block; 7. second connecting groove; 8. second connecting ear; 9. mounting strip; 10. scraper; 11. first connecting ear; 12. connecting sleeve; 13. connecting rod; 14. external thread; 15. first rotating shaft; 16. cleaning sleeve; 17. hydraulic cylinder; 18. hydraulic rod; 19. receiving sleeve; 20. threaded hole; 21. clamping hole; 22. threaded part; 23. second rotating shaft. 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 in 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] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Embodiment 1:

[0033] See also Figure 1 , 2, 4. The present utility model provides a technical solution: To achieve the above object, the present utility model provides the following technical solution: A cleaning device for an SMT printer, comprising: a tool holder 1; a first connecting block 2 is fixed to the bottom of the tool holder 1, a chute 4 is opened at the bottom of the tool holder 1, a slider 5 is installed in the chute 4, and a second connecting block 6 is fixed to the bottom of the slider 5; first connecting slots 3 and second connecting slots 7 are respectively opened at the opposite ends of the first connecting block 2 and the second connecting block 6; an installation strip 9 is connected in the first connecting slot 3 and the second connecting slot 7, and a squeegee 10 is fixed to the bottom of the installation strip 9; a cleaning sleeve 16 is arranged outside the squeegee 10, a first connecting ear 11 is fixed to the bottom of the tool holder 1, a connecting sleeve 12 is fixed to one end of the first connecting ear 11 close to the second connecting block 6, a connecting rod 13 is arranged in the connecting sleeve 12, one end of the connecting rod 13 close to the second connecting block 6 is rotatably connected to the second connecting block 6, internal threads are arranged on the inner wall of the connecting sleeve 12, external threads 14 are arranged on the outer wall of the connecting rod 13, and the connecting rod 13 is threadedly connected to the inside of the connecting sleeve 12 through the external threads 14 and the internal threads, a first rotating shaft 15 is fixed to the outer wall of the connecting rod 13, a hydraulic cylinder 17 is installed at the bottom of the tool holder 1, and a hydraulic rod 18 is installed at the bottom of the hydraulic cylinder 17; a second connecting ear 8 is fixed to the outer wall of the cleaning sleeve 16, and a receiving sleeve 19 is fixed to the top of the second connecting ear 8; the receiving sleeve 19 is located outside the hydraulic rod 18.

[0034] Specifically, by starting the hydraulic cylinder 17 of the present utility model, the hydraulic cylinder 17 will drive the cleaning sleeve 16 to move downward through the hydraulic rod 18. When the cleaning sleeve 16 moves downward, the solder paste on the surface of the squeegee 10 will be cleaned. Since the cleaning sleeve 16 is arranged outside the squeegee 10 and the cleaning sleeve 16 wraps the squeegee 10 as a whole, the cleaning efficiency of the squeegee 10 is improved, and the squeegee 10 will not block the movement of the cleaning sleeve 16, further improving the cleaning efficiency of the squeegee 10.

[0035] And by rotating the second rotating shaft 23, the second rotating shaft 23 will drive the threaded member 22 to move in the threaded hole 20. After one end of the threaded member 22 is disengaged from the locking hole 21, the cleaning sleeve 16 can be disassembled. On the one hand, it is convenient to clean and maintain the cleaning sleeve 16, improving the working efficiency of the cleaning sleeve 16. On the other hand, it also avoids the cleaning sleeve 16 from hindering the disassembly work of the squeegee 10.

[0036] Embodiment 2:

[0037] Please refer to Figure 1 , 3 , the present utility model provides a technical solution: A cleaning device for an SMT printer, a threaded hole 20 is opened on the outer wall of the receiving sleeve 19, and a locking hole 21 is opened on the outer wall of the hydraulic rod 18; a threaded member 22 is threadedly connected in the threaded hole 20, one end of the threaded member 22 is fixed with a second rotating shaft 23, and the other end of the threaded member 22 is clamped inside the locking hole 21.

[0038] Specifically, since the connecting rod 13 is threadedly connected inside the connecting sleeve 12 through the external thread 14 and the internal thread, the connecting rod 13 can be rotated by the first rotating shaft 15. At this time, the connecting rod 13 will move inside the connecting sleeve 12, and the second connecting block 6 will gradually move away from the first connecting block 2. Subsequently, the mounting strip 9 can be taken out from the first connecting groove 3 and the second connecting groove 7, achieving the purpose of disassembling the scraper 10. Therefore, the utility model is convenient for disassembling and maintaining the scraper 10.

[0039] Working principle:

[0040] First, by starting the hydraulic cylinder 17, the hydraulic cylinder 17 will drive the cleaning sleeve 16 to move downward through the hydraulic rod 18. When the cleaning sleeve 16 moves downward, it will clean the solder paste on the surface of the scraper 10. Since the cleaning sleeve 16 is arranged outside the scraper 10 and the cleaning sleeve 16 wraps the scraper 10 as a whole, the cleaning efficiency of the scraper 10 is improved, and the scraper 10 will not block the movement of the cleaning sleeve 16, further improving the cleaning efficiency of the scraper 10;

[0041] And by rotating the second rotating shaft 23, the second rotating shaft 23 will drive the threaded part 22 to move in the threaded hole 20. After one end of the threaded part 22 is disengaged from the locking hole 21, the cleaning sleeve 16 can be disassembled. On the one hand, it is convenient to clean and maintain the cleaning sleeve 16 and improve the working efficiency of the cleaning sleeve 16. On the other hand, it also avoids the cleaning sleeve 16 from hindering the disassembly work of the scraper 10;

[0042] Secondly, since the connecting rod 13 is threadedly connected inside the connecting sleeve 12 through the external thread 14 and the internal thread, the connecting rod 13 can be rotated by the first rotating shaft 15. At this time, the connecting rod 13 will move inside the connecting sleeve 12, and the second connecting block 6 will gradually move away from the first connecting block 2. Subsequently, the mounting strip 9 can be taken out from the first connecting groove 3 and the second connecting groove 7, achieving the purpose of disassembling the scraper 10. Therefore, the utility model is convenient for disassembling and maintaining the scraper 10.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present utility model.

[0044] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for an SMT printer, characterized in that: include: Knife holder(1); A first connecting block (2) is fixed at the bottom of the knife seat (1), a sliding groove (4) is provided at the bottom of the knife seat (1), a sliding block (5) is installed in the sliding groove (4), and a second connecting block (6) is fixed at the bottom of the sliding block (5); The first connecting block (2) and the second connecting block (6) are respectively provided with a first connecting groove (3) and a second connecting groove (7) at opposite ends thereof; The first connecting groove (3) and the second connecting groove (7) are connected with a mounting bar (9), and a scraper (10) is fixed at the bottom of the mounting bar (9); A cleaning sleeve (16) is arranged outside the scraper (10).

2. A cleaning device for an SMT printer according to claim 1, characterized in that: A first connecting ear (11) is fixed to the bottom of the knife holder (1), a connecting sleeve (12) is fixed to one end of the first connecting ear (11) close to the second connecting block (6), a connecting rod (13) is arranged inside the connecting sleeve (12), and one end of the connecting rod (13) close to the second connecting block (6) is rotatably connected to the second connecting block (6).

3. A cleaning device for an SMT printer according to claim 2, characterized in that: The inner wall of the connecting sleeve (12) is provided with an internal thread, and the outer wall of the connecting rod (13) is provided with an external thread (14). The connecting rod (13) is threadably connected to the inside of the connecting sleeve (12) through the external thread (14) and the internal thread.

4. A cleaning device for an SMT printer according to claim 3, characterized in that: A first rotating shaft (15) is fixed to the outer wall of the connecting rod (13).

5. The cleaning device for an SMT printer according to claim 1, characterized in that: A hydraulic cylinder (17) is installed at the bottom of the knife seat (1), and a hydraulic rod (18) is installed at the bottom of the hydraulic cylinder (17); A second connecting ear (8) is fixed on the outer wall of the cleaning sleeve (16), and a receiving sleeve (19) is fixed on the top of the second connecting ear (8); The receiving sleeve (19) is located outside the hydraulic rod (18).

6. A cleaning device for an SMT printer according to claim 5, characterized in that: The outer wall of the receiving sleeve (19) is provided with a threaded hole (20), and the outer wall of the hydraulic rod (18) is provided with a clamping hole (21); The threaded hole (20) is internally threadedly connected with a threaded member (22), a second rotating shaft (23) is fixed to one end of the threaded member (22), and the other end of the threaded member (22) is clamped inside the clamping hole (21).

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