Positioning device for CTP (computer to plate)

Abstract

The utility model discloses a positioning device for CTP (computer to plate), and relates to the technical field of CTP production equipment, the positioning device comprises supporting legs, a positioning rod, a supporting block, a limiting groove frame and a second connecting rod, a steering wheel frame is arranged above the supporting legs, a correction table is arranged on the left side of the steering wheel frame, the supporting block is arranged above the correction table, and the supporting block is arranged above the second connecting rod. A second connecting rod is mounted on the left side of the steering wheel frame, a first connecting rod is arranged on the right side of the steering wheel frame, a positioning rod is mounted on the left side of the first connecting rod, a guide groove is formed in the right side of the steering wheel frame, and a bearing frame is mounted on the left side of the steering wheel frame; according to the equipment, a steering wheel frame and a second connecting rod are integrally of a parallelogram structure, when a positioning rod is stressed, the first connecting rod and the second connecting rod can drive the correcting double rollers to deviate reversely, and therefore plate correcting is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment for CTP plates, in particular to a positioning device for CTP plates. Background Art

[0002] CTP plate making is a comprehensive, multidisciplinary product. It is a high-tech technology that integrates optical technology, electronic technology, color digital image technology, computer hardware and software, precision instruments and plate technology, automation technology, network technology and other new technologies. However, the existing CTP plate making installation settings have some shortcomings, such as:

[0003] Publication No.: CN114789477B describes a thermal CTP sheet continuous processing device. Since the device only pulls the sheet by setting a limit groove structure and does not set a correction device, during use, due to the special properties of the CTP sheet itself, once the edge of the sheet is worn for a long time during processing, it will cause deviation and cutting errors, thereby causing a series of problems in the later printing process. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning device for CTP plates, so as to solve the problem proposed in the above-mentioned background technology that the equipment on the existing market only pulls the plates by setting a limit groove structure without setting a correction device. During use, due to the special properties of the plates themselves, once the edges of the plates are worn for a long time during processing, it will cause deviation and cause cutting errors, thereby causing a series of problems in the later printing process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for a CTP plate, comprising a support leg, a positioning rod, a support block, a limit slot frame and a second connecting rod;

[0006] A steering wheel frame is installed above the supporting leg, a correction platform is arranged on the left side of the steering wheel frame, a support block is arranged above the correction platform, a correction double roller is installed above the support block, a second connecting rod is installed on the left side of the steering wheel frame, and a first connecting rod is arranged on the right side of the steering wheel frame, a positioning rod is installed on the left side of the first connecting rod, a guide groove is arranged on the right side of the steering wheel frame, a bearing frame is installed on the left side of the steering wheel frame, a first guide roller is installed on the left side of the bearing frame, a second guide roller is installed on the left side of the first guide roller, a traction roller is arranged on the right side of the bearing frame, a pressure roller is arranged above the traction roller, a limiting slot frame is arranged on the left side of the pressure roller, and a spring is installed at the midline position of the limiting slot frame, a guide slider is arranged below the spring, and a motor is installed on the left side of the traction roller.

[0007] As the preferred technical solution of the utility model, a carrier frame is vertically fixed above the support leg, the centerline position above the carrier frame is rotatably connected to the steering wheel frame, and the side of the steering wheel frame is rotatably connected to the correction platform, both sides of the centerline of the correction platform are provided with circular gear structures, and a pair of support blocks are symmetrically fixed on the upper surface of the correction platform, and the support blocks are rotatably connected to the correction double rollers;

[0008] By adopting the above technical solution, the equipment can provide a stable support effect for the equipment by vertically fixing the carrier frame above the support legs, while the double rollers connected to the correction are rotated above the support block, and circular gear structures are set on both sides of the center line of the correction table. Gears are used as the connecting structure, which has good stability and structural strength.

[0009] As a preferred technical solution of the utility model, both sides of the center line of the support block are meshed and connected to the steering wheel frame, the side of the steering wheel frame is rotatably connected to the second connecting rod, and the right side of the steering wheel frame is rotatably connected to the first connecting rod, the top of the first connecting rod is rotatably connected to the positioning rod, the bottom of the positioning rod is slidably connected to the guide groove, and the steering wheel frame and the second connecting rod are a parallelogram structure as a whole;

[0010] By adopting the above technical solution, the device forms a parallelogram structure with the steering wheel frame and the second connecting rod as a whole. When the positioning rod is subjected to force, the first connecting rod and the second connecting rod will drive the correction double rollers to shift in the opposite direction, thereby realizing plate correction.

[0011] As a preferred technical solution of the utility model, the left side of the carrier is rotatably connected to the first guide roller, and the left side of the first guide roller is rotatably connected to the second guide roller, and the height of the second guide roller is 1.5 times that of the first guide roller;

[0012] By adopting the above technical solution, the equipment provides a first guide roller and a second guide roller on the left step of the supporting frame to exert bidirectional force on the plate, thereby ensuring the stability of the plate during transportation.

[0013] As an optimal technical solution of the utility model, a limiting groove frame is fixedly connected to the upper right side of the carrier frame, the limiting groove frame is arranged as a hollow structure, and the inner wall of the limiting groove frame is slidably connected to a guide slider, a spring is fixedly connected to the upper side of the guide slider, and the left side of the guide slider is rotatably connected to a pressure roller, and the lower side of the pressure roller is rotatably connected to a traction roller, the left side of the traction roller is fixedly connected to the motor output shaft, the traction roller and the pressure roller have the same size, and the traction roller and the pressure roller are in contact with each other, and the surface smoothness of the traction roller and the pressure roller is less than 0.2 mm.

[0014] By adopting the above technical solution, the equipment sets the traction roller and the pressure roller to have a certain degree of smoothness according to the smooth surface characteristics of the CTP sheet, and installs springs at both ends of the pressure roller. The spring and pressure roller structure provide downward pressure on the CTP sheet, which can ensure friction without damaging the CTP sheet, thereby improving the conveying speed of the equipment.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The equipment forms a parallelogram structure with the steering wheel frame and the second connecting rod. When the positioning rod is stressed, the first connecting rod and the second connecting rod will drive the correction double rollers to shift in the opposite direction, thereby achieving plate correction;

[0017] 2. The equipment sets the traction roller and the pressure roller to have a certain degree of smoothness according to the smooth surface characteristics of the CTP sheet, and installs springs at both ends of the pressure roller. The spring and pressure roller structure provide downward pressure on the CTP sheet, which can ensure friction without damaging the CTP sheet, thereby increasing the conveying speed of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a side view of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the motor and traction roller of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the traction roller and the pressure roller of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the double rollers and the support block for correction of the utility model.

[0022] In the figure: 1. Support leg; 2. Positioning rod; 3. Support block; 4. Limiting slot frame; 5. Steering wheel frame; 6. First guide roller; 7. Second guide roller; 8. Carrying frame; 9. Correction double roller; 10. First connecting rod; 11. Motor; 12. Traction roller; 13. Pressure roller; 14. Guide groove; 15. Spring; 16. Guide slider; 17. Correction table; 18. Second connecting rod. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 The technical solution of the utility model: a positioning device for a CTP sheet, comprising a supporting leg 1, a positioning rod 2, a supporting block 3, a limiting groove frame 4, a steering wheel frame 5, a first guide roller 6, a second guide roller 7, a bearing frame 8, a correction double roller 9, a first connecting rod 10, a motor 11, a traction roller 12, a pressure roller 13, a guide groove 14, a spring 15, a guide slider 16, a correction table 17 and a second connecting rod 18;

[0025] A bogie frame 5 is installed above the support leg 1, a correction platform 17 is arranged on the left side of the bogie frame 5, a support block 3 is arranged above the correction platform 17, a correction double roller 9 is installed above the support block 3, a carrier frame 8 is vertically fixed above the support leg 1, the centerline position above the carrier frame 8 is rotatably connected to the bogie frame 5, and the side of the bogie frame 5 is rotatably connected to the correction platform 17, both sides of the centerline of the correction platform 17 are arranged with circular gear structures, and a pair of support blocks 3 are symmetrically fixed on the upper surface of the correction platform 17, and the top of the support block 3 is rotatably connected to the correction double roller 9. The device can provide a stable support effect for the device by vertically fixing the carrier frame 8 above the support leg 1, and the top of the support block 3 is rotatably connected to the correction double roller 9, and both sides of the centerline of the correction platform 17 are arranged with circular gear structures The gear structure uses gears as the connecting structure, which has good stability and structural strength. The second connecting rod 18 is installed on the left side of the bogie frame 5, and the first connecting rod 10 is arranged on the right side of the bogie frame 5. Both sides of the center line of the support block 3 are meshed and connected to the bogie frame 5. The side of the bogie frame 5 is rotated to connect the second connecting rod 18, and the right side of the bogie frame 5 is rotated to connect the first connecting rod 10. The top of the first connecting rod 10 is rotated to connect the positioning rod 2, and the bottom of the positioning rod 2 is slidably connected to the guide groove 14. The bogie frame 5 and the second connecting rod 18 are a parallelogram structure as a whole. The device makes the bogie frame 5 and the second connecting rod 18 into a parallelogram structure as a whole. When the positioning rod 2 is subjected to force, the first connecting rod 10 and the second connecting rod 18 will drive the double rollers 9 to be corrected. The plate is deviated to the right direction, thereby realizing plate correction, a positioning rod 2 is installed on the left side of the first connecting rod 10, a guide groove 14 is arranged on the right side of the steering wheel frame 5, a bearing frame 8 is installed on the left side of the steering wheel frame 5, a first guide roller 6 is installed on the left side of the bearing frame 8, a second guide roller 7 is installed on the left side of the first guide roller 6, the left side of the bearing frame 8 is rotatably connected to the first guide roller 6, and the left side of the first guide roller 6 is rotatably connected to the second guide roller 7, and the height of the second guide roller 7 is 1.5 times that of the first guide roller 6. The equipment provides a first guide roller 6 and a second guide roller 7 on the left side of the bearing frame 8 to exert bidirectional force on the plate, thereby ensuring the stability of the plate during transportation, a traction roller 12 is arranged on the right side of the bearing frame 8, a pressure roller 13 is arranged above the traction roller 12, and a pressure roller A limit slot frame 4 is arranged on the left side of the roller 13, and a spring 15 is installed at the midline position of the limit slot frame 4, a guide slider 16 is arranged below the spring 15, a motor 11 is arranged on the left side of the traction roller 12, and the limit slot frame 4 is fixedly connected to the upper right side of the carrier frame 8, the limit slot frame 4 is arranged as a hollow structure, and the inner wall of the limit slot frame 4 is slidably connected to the guide slider 16, the spring 15 is fixedly connected above the guide slider 16, and the left side of the guide slider 16 is rotatably connected to the pressure roller 13, and the lower side of the pressure roller 13 is rotatably connected to the traction roller 12, the left side of the traction roller 12 is fixedly connected to the output shaft of the motor 11, the traction roller 12 and the pressure roller 13 have the same size, and the traction roller 12 and the pressure roller 13 are in contact with each other, and the surface smoothness of the traction roller 12 and the pressure roller 13 is less than 0.2mm, the equipment sets the traction roller 12 and the pressure roller 13 to have a certain degree of smoothness according to the smooth surface characteristics of the CTP plate, and installs springs 15 at both ends of the pressure roller 13. The spring 15 and the pressure roller 13 structure provide downward pressure on the CTP plate, which can ensure friction without damaging the CTP plate, thereby increasing the conveying speed of the equipment. .

[0026] Working principle: When using the positioning device for CTP sheets, first dock the right side of the pressure roller 13 of the equipment with the interface of the printing press, then insert the CTP sheet between the first guide roller 6 and the second guide roller 7, and pass through the positioning rod 2, and place it between the traction roller 12 and the pressure roller 13, then start the motor 11 to drive the traction roller 12 to rotate, and under the action of the spring 15, the pressure roller 13 provides sufficient downward pressure to straighten the CTP sheet. After the CTP sheet is straightened, the CTP sheet will provide downward pressure to the correction double roller 9. Once the positioning rod 2 contacts the offset CTP sheet, it will drive the steering wheel frames 5 on both sides to rotate through the first connecting rod 10 and the second connecting rod 18. Under the action of the gear, the correction table 17 rotates in the opposite direction, and the CTP sheet is automatically corrected by the correction double roller 9 to keep it in a straight line.

[0027] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for a CTP sheet, comprising a support leg (1), a positioning rod (2), a support block (3), a limit slot frame (4) and a second connecting rod (18), characterized in that: A bogie frame (5) is installed above the support leg (1), a correction platform (17) is arranged on the left side of the bogie frame (5), a support block (3) is arranged above the correction platform (17), a correction double roller (9) is installed above the support block (3), a second connecting rod (18) is installed on the left side of the bogie frame (5), and a first connecting rod (10) is arranged on the right side of the bogie frame (5), a positioning rod (2) is installed on the left side of the first connecting rod (10), a guide groove (14) is arranged on the right side of the bogie frame (5), and a guide groove (14) is arranged on the left side of the bogie frame (5). A bearing frame (8) is installed, a first guide roller (6) is installed on the left side of the bearing frame (8), a second guide roller (7) is installed on the left side of the first guide roller (6), a traction roller (12) is arranged on the right side of the bearing frame (8), a pressure roller (13) is arranged above the traction roller (12), a limiting slot frame (4) is arranged on the left side of the pressure roller (13), a spring (15) is installed at the midline position of the limiting slot frame (4), a guide slider (16) is arranged below the spring (15), and a motor (11) is installed on the left side of the traction roller (12).

2. The positioning device for CTP sheet material according to claim 1, characterized in that: A carrier frame (8) is vertically fixed above the support leg (1); the carrier frame (8) is rotatably connected to a steering wheel frame (5) at the centerline position above the carrier frame (8); and the steering wheel frame (5) is rotatably connected to a correction platform (17) at the side; both sides of the centerline of the correction platform (17) are provided with circular gear structures; and a pair of support blocks (3) are symmetrically fixed on the upper surface of the correction platform (17); and the support blocks (3) are rotatably connected to double correction rollers (9) at the top.

3. The positioning device for CTP sheet material according to claim 2, characterized in that: The support block (3) is meshedly connected to the steering wheel frame (5) on both sides of the center line, the steering wheel frame (5) is rotatably connected to the second connecting rod (18) on the side, and the steering wheel frame (5) is rotatably connected to the first connecting rod (10) on the right side, the first connecting rod (10) is rotatably connected to the positioning rod (2) on the top, and the bottom of the positioning rod (2) is slidably connected to the guide groove (14), and the steering wheel frame (5) and the second connecting rod (18) are a parallelogram structure as a whole.

4. The positioning device for CTP sheet material according to claim 3, characterized in that: The left side of the carrier frame (8) is rotatably connected to the first guide roller (6), and the left side of the first guide roller (6) is rotatably connected to the second guide roller (7), and the height of the second guide roller (7) is 1.5 times that of the first guide roller (6).

5. The positioning device for CTP sheet material according to claim 4, characterized in that: The upper right side of the carrier frame (8) is fixedly connected to a limit slot frame (4), the limit slot frame (4) is arranged as a hollow structure, and the inner wall of the limit slot frame (4) is slidably connected to a guide slider (16), the upper side of the guide slider (16) is fixedly connected to a spring (15), and the left side of the guide slider (16) is rotatably connected to a pressure roller (13), and the lower side of the pressure roller (13) is rotatably connected to a traction roller (12), the left side of the traction roller (12) is fixedly connected to an output shaft of a motor (11), the traction roller (12) and the pressure roller (13) have the same size, and the surfaces of the traction roller (12) and the pressure roller (13) are in contact with each other, and the surface smoothness of the traction roller (12) and the pressure roller (13) is less than 0.2 mm.

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