Height adjusting structure for scraping and printing knife of printing machine

Abstract

The utility model discloses a scraping knife height adjusting structure of a printing machine, which comprises a rack, a height adjusting mechanism, a lifting frame, an angle adjusting mechanism, a scraping knife, a graduated scale and an auxiliary measuring mechanism, the height adjusting mechanism is arranged on the rack, the lifting frame is fixed at the bottom of the height adjusting mechanism, a limiting rod penetrating through the rack is fixed on one side of the lifting frame, and the angle adjusting mechanism is fixed on the other side of the lifting frame. An angle adjusting mechanism is installed on the lifting frame, a scraper is fixed to the lower side of the angle adjusting mechanism, a graduated scale is installed at the left end in the rack, an auxiliary measuring mechanism is placed on the rack and comprises a magnetic block, a positioning plate and a pointer, the positioning plate is fixed to the right side of the magnetic block, and the pointer is fixed to the left side of the magnetic block. The height of the scraper can be conveniently adjusted and measured, and the height of the scraper can be conveniently and accurately controlled; the inclination angle of the scraper is convenient to adjust, and different use requirements are conveniently met.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a height adjustment structure of a squeegee for a printing machine. Background Technique

[0002] A squeegee is a tool used in processes such as printing and screen printing, also known as a scraper or a squeegee. During the printing process, it is used to evenly scrape printing materials such as ink, solder paste, or others onto a printing plate or a screen plate. During the use of the squeegee, the height and tilt angle of the squeegee need to be adjusted according to the usage requirements.

[0003] Chinese Patent CN221339871U discloses a height adjustment structure of a squeegee for a printing machine, which includes a fixing plate. A tool holder is arranged below the fixing plate, and a squeegee is installed at the bottom of the tool holder. A pressing seat is arranged between the fixing plate and the tool holder. Both ends of the top of the pressing seat are fixed with pressing columns, and ball cylinders are fixed at the ends of the pressing columns away from the pressing seat. The pressing seat is sleeved with a rotating cylinder at the top of a connecting rod and an active seat at the bottom of the fixing plate to achieve a rotatable effect, so that the height at both ends can be adjusted. The rotation of the pressing screws at both ends can drive the pressing balls to descend, and the pressing balls are inserted into the interior of the ball cylinders. No matter how the pressing balls descend and how the ball cylinders tilt under the downward pressure, the outer wall of the pressing ball and the inner wall of the ball cylinder will be in contact in a surface-to-surface manner. This contact method can provide better downward pressure stability and avoid the situation where the contact between the edges is unstable and affects the working stability of the squeegee.

[0004] The above patent adjusts the height of the squeegee through two pressing screws during adjustment. However, the pressing screws need to be manually turned by a person, and it is very difficult for a person to ensure that the turning progress of the two pressing screws is the same, which will cause the squeegee to be higher on one side and lower on the other side. The above patent also cannot measure the height of the squeegee. In addition, the above patent can only adjust the height of the squeegee, but cannot adjust the tilt angle of the squeegee. During actual use, it is often necessary to adjust the height and tilt angle of the squeegee according to requirements. Therefore, in view of the above current situation, there is an urgent need to develop a height adjustment and measurement structure for the squeegee of a printing machine that is convenient for adjusting and measuring the height of the squeegee, facilitating accurate control of the height of the squeegee, convenient for adjusting the tilt angle of the squeegee, and facilitating meeting different usage requirements, so as to overcome the deficiencies in current practical applications and meet current needs. Content of the Utility Model

[0005] The purpose of the utility model is to provide a height adjustment structure of a squeegee for a printing machine to solve the problems raised in the above background technique.

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

[0007] A height adjustment structure for a squeegee of a printing press, comprising a frame, a height adjustment mechanism, a lifting frame, an angle adjustment mechanism, a squeegee, a scale, and an auxiliary measurement mechanism. The height adjustment mechanism is installed on the frame. The bottom of the height adjustment mechanism is fixed with a lifting frame. A limiting rod penetrating the frame is fixed on one side of the lifting frame. An angle adjustment mechanism is installed on the lifting frame. The lower side of the angle adjustment mechanism is fixed with a squeegee. A scale is installed at the left end inside the frame. An auxiliary measurement mechanism is placed on the frame. The auxiliary measurement mechanism includes: a magnetic block, a positioning plate, and a pointer. The positioning plate is fixed on the right side of the magnetic block. The pointer is fixed on the left side of the magnetic block. The angle adjustment mechanism includes: a rotating shaft, a turntable, a push-pull pin, a clamping block, and a spring. The rotating shaft is rotatably connected to the lifting frame. The turntable is fixed to the right end of the rotating shaft. The push-pull pin is slidably installed on the lifting frame. The clamping block inserted into the turntable is fixed to the bottom of the push-pull pin. A plurality of card slots for the clamping block to insert are provided on the turntable. A spring is arranged on the upper half of the push-pull pin. The upper end of the spring is connected to the push-pull pin. The lower end of the spring is connected to the lifting frame.

[0008] Preferably: The included angle between two adjacent card slots is 10°.

[0009] Preferably: The limiting rod is slidably connected to the frame. A limiting sliding groove for the up and down movement of the limiting rod is provided on the frame.

[0010] Preferably: The height adjustment mechanism includes: a threaded sleeve, a threaded rod, and a rotating handle. The threaded sleeve is rotatably connected to the frame. The threaded rod is installed inside the threaded sleeve. The rotating handle is fixed to the outside of the threaded sleeve. The lifting frame is fixed to the bottom of the threaded rod.

[0011] The beneficial effects of the present utility model are as follows: When using the height adjustment structure for the squeegee of the printing press, first, the magnetic block is attracted to the left side of the squeegee, so that the bottom of the squeegee abuts against the positioning plate, and the pointer points to the scale. Then, the rotating handle is rotated by hand to drive the threaded sleeve to rotate. The rotation of the threaded sleeve drives the threaded rod and the lifting frame to move up and down. The lifting frame drives the angle adjustment mechanism and the squeegee to move up and down, thereby adjusting the height of the squeegee. At the same time, the bottom surface height of the squeegee can be measured through the pointer and the scale, so as to accurately control the height of the squeegee. After measurement, the auxiliary measurement mechanism is removed; in addition, the push-pull pin and the clamping block are pulled upward to move the clamping block out of the card slot. Then, the turntable is rotated. The rotation of the turntable drives the rotating shaft and the squeegee to rotate, thereby adjusting the inclination angle of the squeegee. After adjustment, the clamping block is inserted into the card slot to fix the turntable. In summary, the present utility model is convenient for adjusting and measuring the height of the squeegee, facilitating the accurate control of the height of the squeegee; it is convenient for adjusting the inclination angle of the squeegee, facilitating the satisfaction of different usage requirements. Description of the Drawings

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model.

[0013] Figure 2 This is a schematic diagram of the measurement state of the present utility model.

[0014] Figure 3 This is a schematic diagram of a partial structure of the present utility model Figure 1 。

[0015] Figure 4 This is the present utility model Figure 2 The partial view at position A in.

[0016] Figure 5 This is a schematic diagram of a partial structure of the present utility model Figure 2 。

[0017] Figure 6 This is a schematic diagram of a partial structure of the present utility model Figure 3 。

[0018] Legend:

[0019] 1. Frame; 101. Limit sliding groove; 2. Height adjustment mechanism; 201. Threaded sleeve; 202. Threaded rod; 203. Rotating handle; 3. Lifting frame; 301. Limit rod; 4. Angle adjustment mechanism; 401. Rotating shaft; 402. Turntable; 4021. Card slot; 403. Push-pull pin; 404. Block; 405. Spring; 5. Scraper; 6. Scale; 7. Auxiliary measurement mechanism; 701. Magnetic block; 702. Positioning plate; 703. Pointer. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] The following gives specific embodiments.

[0022] See Figures 1 to 6, in the embodiment of the present utility model, a height adjustment structure of a squeegee for a printing machine includes a frame 1, a height adjustment mechanism 2, a lifting frame 3, an angle adjustment mechanism 4, a squeegee 5, a scale 6 and an auxiliary measurement mechanism 7. The height adjustment mechanism 2 is installed on the frame 1. The bottom of the height adjustment mechanism 2 is fixed with a lifting frame 3. One side of the lifting frame 3 is fixed with a limiting rod 301 penetrating through the frame 1. The limiting rod 301 is slidably connected with the frame 1. The frame 1 is provided with a limiting chute 101 for the up and down movement of the limiting rod 301. The angle adjustment mechanism 4 is installed on the lifting frame 3. The lower side of the angle adjustment mechanism 4 is fixed with a squeegee 5. The squeegee 5 is made of iron material. The left end inside the frame 1 is installed with a scale 6. An auxiliary measurement mechanism 7 is placed on the frame 1. The auxiliary measurement mechanism 7 includes: a magnetic block 701, a positioning plate 702 and a pointer 703. The right side of the magnetic block 701 is fixed with the positioning plate 702. The left side of the magnetic block 701 is fixed with the pointer 703. During adjustment, first, the magnetic block 701 is attracted to the left side of the squeegee 5, so that the bottom of the squeegee 5 abuts against the positioning plate 702, and the pointer 703 points to the scale 6. The height adjustment mechanism 2 drives the lifting frame 3 to move up and down, and the lifting frame 3 drives the angle adjustment mechanism 4 and the squeegee 5 to move up and down, so as to adjust the height of the squeegee 5. At the same time, the bottom surface height of the squeegee 5 can be measured through the pointer 703 and the scale 6, so as to accurately control the height of the squeegee 5. In addition, the inclination angle of the squeegee 5 can also be adjusted through the angle adjustment mechanism 4.

[0023] The height adjustment mechanism 2 includes: a threaded sleeve 201, a threaded rod 202 and a rotating handle 203. The threaded sleeve 201 is rotatably connected to the frame 1. The threaded rod 202 is installed inside the threaded sleeve 201. The outer side of the threaded sleeve 201 is fixed with the rotating handle 203. The lifting frame 3 is fixed to the bottom of the threaded rod 202. When in use, the rotating handle 203 is rotated by hand to drive the threaded sleeve 201 to rotate, and the threaded rod 202 and the lifting frame 3 are driven to move up and down by the rotation of the threaded sleeve 201.

[0024] The angle adjustment mechanism 4 includes: a rotating shaft 401, a turntable 402, a push-pull pin 403, a clamping block 404, and a spring 405. The rotating shaft 401 is rotatably connected to the lifting frame 3. A turntable 402 is fixed to the right end of the rotating shaft 401. A push-pull pin 403 is slidably installed on the lifting frame 3. A clamping block 404 inserted into the turntable 402 is fixed to the bottom of the push-pull pin 403. A plurality of slots 4021 for the clamping block 404 to insert are provided on the turntable 402. The included angle between two adjacent slots 4021 is 10°. A spring 405 is provided on the upper half of the push-pull pin 403. The upper end of the spring 405 is connected to the push-pull pin 403, and the lower end of the spring 405 is connected to the lifting frame 3. When no external force is applied, the spring 405 is in a natural length state, and the clamping block 404 is inserted into the slot 4021.

[0025] Working principle: For the scraping knife height adjustment structure of this printing machine, during use, first, the magnetic block 701 is attracted to the left side of the scraping knife 5, so that the bottom of the scraping knife 5 abuts against the positioning plate 702, and the pointer 703 points to the scale 6. Then, the rotary handle 203 is rotated by hand to drive the threaded sleeve 201 to rotate. The rotation of the threaded sleeve 20 brings the threaded rod 202 and the lifting frame 3 to move up and down. The lifting frame 3 drives the angle adjustment mechanism 4 and the scraping knife 5 to move up and down, thereby adjusting the height of the scraping knife 5. At the same time, the bottom surface height of the scraping knife 5 can be measured through the pointer 703 and the scale 6 to accurately control the height of the scraping knife 5. After the measurement, the auxiliary measurement mechanism 7 is removed; in addition, the push-pull pin 403 and the clamping block 404 are pulled upward so that the clamping block 404 is removed from the slot 4021. Then, the turntable 402 is rotated, and the rotating shaft 401 and the scraping knife 5 are driven by the turntable 402 to rotate, thereby adjusting the inclination angle of the scraping knife 5. After the adjustment, the clamping block 404 is inserted into the slot 4021 to fix the turntable 402.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A height adjustment structure for a doctor blade of a printing press, characterized in that, It includes a frame (1), a height adjustment mechanism (2), a lifting frame (3), an angle adjustment mechanism (4), a scraper (5), a scale (6) and an auxiliary measurement mechanism (7). A height adjustment mechanism (2) is installed on the frame (1). The bottom of the height adjustment mechanism (2) is fixed with a lifting frame (3). A limiting rod (301) passing through the frame (1) is fixed on one side of the lifting frame (3). An angle adjustment mechanism (4) is installed on the lifting frame (3). A scraper (5) is fixed on the lower side of the angle adjustment mechanism (4). A scale (6) is installed at the left end inside the frame (1). An auxiliary measurement mechanism (7) is placed on the frame (1). The auxiliary measurement mechanism (7) includes: a magnetic block (701), a positioning plate (702) and a pointer (703). A positioning plate (702) is fixed on the right side of the magnetic block (701). A pointer (703) is fixed on the left side of the magnetic block (701). The angle adjustment mechanism (4) includes: a rotating shaft (401), a turntable (402), a push-pull pin (403), a clamping block (404) and a spring (405). The rotating shaft (401) is rotatably connected to the lifting frame (3). The right end of the rotating shaft (401) is fixed with a turntable (402). A push-pull pin (403) is slidably installed on the lifting frame (3). A clamping block (404) inserted into the turntable (402) is fixed at the bottom of the push-pull pin (403). A plurality of card slots (4021) for the clamping block (404) to insert are provided on the turntable (402). A spring (405) is arranged on the upper half of the push-pull pin (403). The upper end of the spring (405) is connected to the push-pull pin (403), and the lower end of the spring (405) is connected to the lifting frame (3).

2. The height adjustment structure of the doctor blade of the printing press according to claim 1, characterized in that, The included angle between two adjacent card slots (4021) is 10°.

3. The height adjustment structure of the doctor blade of the printing press according to claim 1, characterized in that The limiting rod (301) is slidably connected to the frame (1), and a limiting chute (101) for the up and down movement of the limiting rod (301) is provided on the frame (1).

4. The height adjustment structure of the doctor blade of the printing press according to claim 1, characterized in that, The height adjustment mechanism (2) includes: a threaded sleeve (201), a threaded rod (202) and a rotating handle (203). The threaded sleeve (201) is rotatably connected to the frame (1). A threaded rod (202) is installed inside the threaded sleeve (201). A rotating handle (203) is fixed on the outer side of the threaded sleeve (201). The lifting frame (3) is fixed to the bottom of the threaded rod (202).

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