Printing pressure adjusting mechanism of printing machine

Abstract

The utility model discloses a printing pressure adjusting mechanism of a printing machine, which comprises a mounting frame, and a bottom frame is fixed at the bottom end in the mounting frame. When the printing pressure adjusting mechanism of the printing machine is used for adjusting printing pressure, a locking ring can be correspondingly screwed downwards from the outer portion of a lead screw at the bottom end of a fixing sleeve, then a compression spring can be released, and meanwhile a movable frame and a printing roller body can be driven to move downwards at the top end of an auxiliary roller; the distance between the printing roller body and the auxiliary roller is shortened, the printing pressure of the printing roller body is increased, meanwhile, if printing paper is provided with protruding hard objects in the printing process, the arranged printing roller body can automatically move upwards and compress the compression spring after rolling the hard objects, so that the printing roller body can jump over the hard objects in the printing process, and the printing efficiency is improved. And external damage caused by direct touch is reduced, and the problem that the printing pressure of a printing roller set in the printing machine is inconvenient to adjust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a printing pressure adjustment mechanism for a printing machine. Background Art

[0002] A printing press is a machine that can print text and images. When printing, pressure is applied to the surface of paper or cloth by using the printing roller assembly so that ink can be transferred to the surface of paper or cloth for static printing. It is widely used. When the printing roller assembly inside the printing press is in use, a printing pressure adjustment mechanism is used to adjust the printing pressure of the printing roller.

[0003] However, in actual use of the printing pressure adjustment mechanism of the printing press, the printing roller groups inside the printing press are generally connected in hard contact when the pressure is adjusted. When raised hard debris appears on the printed paper, the printing rollers are easily scratched. This is insufficient and it is not convenient to adjust the printing pressure of the printing roller group inside the printing press.

[0004] Now, a novel printing pressure adjustment mechanism of a printing press is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The utility model aims to provide a printing pressure adjustment mechanism for a printing press, so as to solve the problem in the above background technology that it is inconvenient to adjust the printing pressure of a printing roller group inside the printing press.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a printing pressure adjustment mechanism of a printing press, comprising a mounting frame, a base frame is fixed at the bottom end of the mounting frame, a movable frame is arranged at the top end of the mounting frame, and fixed sleeves are respectively fixed on both sides of the movable frame, a printing roller body is movably connected to the inside of the movable frame, an auxiliary roller is movably connected to the inside of the base frame, a mounting plate is arranged at the bottom of the front end of the base frame, a movable plate is arranged at the front end of the mounting plate, lead screws are vertically fixed on both sides of the top end of the mounting frame, a through hole is arranged inside the fixed sleeve, a locking ring is arranged at the bottom end of the fixed sleeve, a compression spring is arranged at the top end of the outside of the lead screw, and dust covers are respectively arranged at both ends of the mounting frame.

[0007] Preferably, the through hole passes through the interior of the fixing sleeve, the bottom end of the lead screw passes through the interior of the through hole, the exterior of the lead screw is provided with an external thread, and the interior of the locking ring is provided with an internal thread matching the external thread.

[0008] Preferably, the top end of the compression spring is fixedly connected to the top end of the outside of the lead screw, and the bottom end of the compression spring is fixedly connected to the top end of the fixing sleeve.

[0009] Preferably, guide rods are fixed on both sides of the top of the movable frame, guide holes are respectively provided inside the two sides of the top of the mounting frame, and the tops of the guide rods pass through the inside of the guide holes.

[0010] Preferably, screw holes are respectively provided on both sides of the bottom of the front end of the base frame, fixing bolts are respectively penetrated on both sides of the front end of the mounting plate, a wiping cloth strip is laterally fixed to the rear end of the movable plate, a screw sleeve is penetrated at the middle position of the bottom of the front end of the movable plate, and a driving rod is provided inside the screw sleeve, and the rear end of the driving rod penetrates the interior of the screw sleeve and is movably connected to the front end of the mounting plate.

[0011] Preferably, sliding rods are fixed to both sides of the front end of the mounting plate, and the front ends of the sliding rods penetrate the interior of the movable plate.

[0012] Preferably, fixing frames are fixed on both sides of the two ends of the top of the mounting frame, connecting feet are fixed on both sides of the rear end of the top of the dust cover, a reserved groove is provided through the front end of the dust cover, a protruding handle is fixed at the bottom of the front end of the dust cover, and the dust cover is made of transparent acrylic material.

[0013] Preferably, the rear end of the connecting leg is hinged to the inside of the fixing frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the printing pressure adjustment mechanism of the printing press not only facilitates the adjustment of the printing pressure of the printing roller group inside the printing press, facilitates the auxiliary external cleaning of the internal transmission roller of the printing press, but also facilitates the auxiliary shielding and dust prevention of the interior of the pressure adjustment mechanism;

[0015] (1) By providing a mounting frame, a base frame, a fixed sleeve, a guide rod, a guide hole, a movable frame, a printing roller body, a lead screw, a compression spring, a through hole, a locking ring and an auxiliary roller, when printing is used, when adjusting the printing pressure of the printing roller body inside the movable frame, the locking rings provided can be respectively rotated downward from the outside of the lead screw at the bottom ends of the fixed sleeves on both sides of the movable frame inside the mounting frame, so that the compression spring can be released, and at the same time, the movable frame and the printing roller body can be driven to move downward at the top of the auxiliary roller, shortening the distance between the printing roller body and the auxiliary roller, and increasing the printing pressure of the printing roller body. At the same time, if there is a protruding hard object on the printed paper during the printing process, the set printing roller body can automatically move up and compress the compression spring after rolling onto the hard object, so that the printing roller body can jump over the hard object during printing, reducing external damage caused by direct contact, and facilitating the adjustment of the printing pressure of the printing roller group inside the printing machine;

[0016] (2) By providing a base frame, an auxiliary roller, a screw hole, a movable plate, a wiping cloth strip, a mounting plate, a fixing bolt, a sliding rod, a screw sleeve and a driving rod, when the adjustment mechanism is installed and used, the mounting plate provided can be fixedly installed at the front end of the base frame using the fixing bolts on the front end surface of the base frame, and then the driving rod can be rotated at the bottom of the front end of the movable plate. While the driving rod rotates inside the screw sleeve, the movable plate can be driven to move backward at the front end of the auxiliary roller and close to the front end of the auxiliary roller. When the auxiliary roller rotates and conveys, the wiping cloth strip provided can assist in wiping and removing some particles and debris attached to the outside of the auxiliary roller. The auxiliary roller can be cleaned or not cleaned by the provided driving rod and screw sleeve;

[0017] (3) By providing a mounting frame, a fixing frame, a connecting foot, a dust cover, a reserved groove and a protruding handle, dust covers are respectively installed on the outside of both ends of the mounting frame through the fixing frame and the connecting foot when the adjustment mechanism is installed and used. The dust cover can be used to assist in externally shielding and preventing dust from entering the interior of the mechanism, thereby reducing the amount of external dust entering the interior of the mechanism. When maintaining the internal components of the mechanism, the dust cover can be flipped upward and opened using the protruding handle, thereby facilitating auxiliary shielding and dust protection for the interior of the pressure adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the enlarged side view of the wiping cloth strip of the utility model;

[0020] Figure 3 This is a schematic diagram of the top view of the movable plate of the utility model;

[0021] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the dust cover of the utility model in a side view.

[0022] In the figure: 1. base frame; 2. mounting frame; 3. fixing sleeve; 4. fixing frame; 5. guide rod; 6. guide hole; 7. movable frame; 8. printing roller body; 9. lead screw; 10. compression spring; 11. through hole; 12. locking ring; 13. screw hole; 14. auxiliary roller; 15. movable plate; 16. wiping cloth strip; 17. mounting plate; 18. fixing bolt; 19. sliding rod; 20. screw sleeve; 21. driving rod; 22. connecting foot; 23. dust cover; 24. reserved groove; 25. convex handle. 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] Example 1: Please refer to Figure 1-4 A printing pressure adjustment mechanism for a printing press comprises a mounting frame 2, a bottom end of the mounting frame 2 is fixed with a base frame 1, a top end of the mounting frame 2 is provided with a movable frame 7, and both sides of the movable frame 7 are respectively fixed with a fixed sleeve 3, a printing roller body 8 is movably connected to the inside of the movable frame 7, an auxiliary roller 14 is movably connected to the inside of the base frame 1, a mounting plate 17 is provided at the bottom of the front end of the base frame 1, a movable plate 15 is provided at the front end of the mounting plate 17, lead screws 9 are respectively vertically fixed to both sides of the top end of the mounting frame 2, a through hole 11 is provided inside the fixed sleeve 3, a locking ring 12 is provided at the bottom end of the fixed sleeve 3, a compression spring 10 is provided at the top end of the lead screw 9, and dust covers 23 are provided at both ends of the mounting frame 2;

[0025] The through hole 11 passes through the interior of the fixed sleeve 3, the bottom end of the lead screw 9 passes through the interior of the through hole 11, the outside of the lead screw 9 is provided with an external thread, the inside of the locking ring 12 is provided with an internal thread matching the external thread, the top end of the compression spring 10 is fixedly connected to the top end of the outside of the lead screw 9, the bottom end of the compression spring 10 is fixedly connected to the top end of the fixed sleeve 3, the two sides of the top of the movable frame 7 are respectively fixed with guide rods 5, the inside of the two sides of the top of the mounting frame 2 are respectively provided with guide holes 6, and the top end of the guide rod 5 passes through the inside of the guide hole 6;

[0026] Specifically, Figure 1 As shown, when the printing pressure of the printing roller body 8 inside the movable frame 7 is adjusted, the locking ring 12 provided can be respectively rotated downward from the outside of the lead screw 9 at the bottom ends of the fixed sleeves 3 on both sides of the movable frame 7 inside the mounting frame 2, and the compression spring 10 can be released, and at the same time, the movable frame 7 and the printing roller body 8 can be driven to move downward at the top of the auxiliary roller 14, shortening the distance between the printing roller body 8 and the auxiliary roller 14, and increasing the printing pressure of the printing roller body 8. At the same time, if there is a protruding hard object on the printed paper during the printing process, the set printing roller body 8 can automatically move up and compress the compression spring 10 after rolling on the hard object, so that the printing roller body 8 can jump over the hard object during printing, reducing external damage caused by direct contact.

[0027] Embodiment 2: Screw holes 13 are respectively provided on both sides of the bottom of the front end of the chassis 1, fixing bolts 18 are respectively provided on both sides of the front end of the mounting plate 17, a wiping cloth strip 16 is transversely fixed to the rear end of the movable plate 15, a screw sleeve 20 is provided through the middle position of the bottom of the front end of the movable plate 15, and a driving rod 21 is provided inside the screw sleeve 20, the rear end of the driving rod 21 passes through the inside of the screw sleeve 20 and is movably connected to the front end of the mounting plate 17, and sliding rods 19 are respectively fixed on both sides of the front end of the mounting plate 17, and the front end of the sliding rod 19 passes through the inside of the movable plate 15;

[0028] Specifically, Figure 1-Figure 3 As shown, the mounting plate 17 can be fixedly installed on the front end of the base frame 1 using the fixing bolts 18, and then the driving rod 21 can be rotated at the bottom of the front end of the movable plate 15. The driving rod 21 can drive the movable plate 15 to move backward at the front end of the auxiliary roller 14 and close to the front end of the auxiliary roller 14 while rotating inside the screw sleeve 20. When the auxiliary roller 14 rotates and conveys, the wiping cloth strip 16 can assist in wiping and removing some particles and debris attached to the outside of the auxiliary roller 14.

[0029] Embodiment 3: The two sides of the top ends of the mounting frame 2 are respectively fixed with a fixing frame 4, the two sides of the top rear end of the dust cover 23 are respectively fixed with connecting feet 22, the front end of the dust cover 23 is penetrated with a reserved groove 24, the bottom of the front end of the dust cover 23 is fixed with a convex handle 25, the dust cover 23 is made of transparent acrylic material, and the rear end of the connecting foot 22 is hinged to the inside of the fixing frame 4;

[0030] Specifically, Figure 1 and Figure 4 As shown, dust covers 23 are hingedly installed on the outside of both ends of the mounting frame 2 through the fixing frame 4 and the connecting foot 22. The dust covers 23 can assist in externally shielding the interior of the mechanism from dust, thereby reducing the entry of external dust into the interior of the mechanism. When maintaining the internal components of the mechanism, the dust cover 23 can be flipped upwards and opened using the protruding handle 25.

[0031] Working principle: When the utility model is in use, when the printing pressure of the printing roller body 8 inside the movable frame 7 is adjusted, the locking ring 12 can be respectively rotated downward from the outside of the lead screw 9 at the bottom ends of the fixed sleeves 3 on both sides of the movable frame 7 inside the mounting frame 2, so that the compression spring 10 can be released, and at the same time, the movable frame 7 and the printing roller body 8 can be driven to move downward at the top of the auxiliary roller 14, shortening the distance between the printing roller body 8 and the auxiliary roller 14, and increasing the printing pressure of the printing roller body 8. At the same time, if there is a protruding hard object on the printed paper during the printing process, the set printing roller body 8 can automatically move up and compress the compression spring 10 after rolling on the hard object, so that the printing roller body 8 can jump over the hard object during printing, reducing external damage caused by direct contact. At the same time, when the adjustment mechanism is installed and used, the set mounting plate 17 can be fixed on the front end surface of the bottom frame 1. After the fixed bolt 18 is fixedly installed at the front end of the base frame 1, the driving rod 21 can be rotated at the bottom of the front end of the movable plate 15. The driving rod 21 can drive the movable plate 15 to move backward at the front end of the auxiliary roller 14 and close to the front end of the auxiliary roller 14 while rotating inside the screw sleeve 20. When the auxiliary roller 14 rotates and conveys, the wiping cloth strip 16 can assist in wiping and removing some particles and debris attached to the outside of the auxiliary roller 14. The auxiliary roller 14 can be cleaned or not cleaned by the provided driving rod 21 and screw sleeve 20. When the adjustment mechanism is installed and used, dust covers 23 are hingedly installed on the outside of both ends of the mounting frame 2 through the fixed frame 4 and the connecting foot 22. The dust cover 23 can assist in external dust shielding of the interior of the mechanism. When maintaining the internal components of the mechanism, the dust cover 23 can be flipped upward and opened using the protruding handle 25.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A printing pressure adjustment mechanism for a printing press, comprising a mounting frame (2), characterized in that: A base frame (1) is fixed at the bottom end of the interior of the mounting frame (2), a movable frame (7) is arranged at the top end of the interior of the mounting frame (2), and fixed sleeves (3) are respectively fixed on both sides of the movable frame (7), a printing roller body (8) is movably connected to the interior of the movable frame (7), an auxiliary roller (14) is movably connected to the interior of the base frame (1), a mounting plate (17) is arranged at the bottom of the front end of the base frame (1), a movable plate (15) is arranged at the front end of the mounting plate (17), a lead screw (9) is respectively vertically fixed on both sides of the top end of the interior of the mounting frame (2), a through hole (11) is arranged inside the fixed sleeve (3), a locking ring (12) is arranged at the bottom end of the fixed sleeve (3), a compression spring (10) is arranged at the top end of the exterior of the lead screw (9), and dust covers (23) are respectively arranged at both ends of the mounting frame (2).

2. A printing pressure adjustment mechanism for a printing press according to claim 1, characterized in that: The through hole (11) passes through the interior of the fixing sleeve (3), the bottom end of the lead screw (9) passes through the interior of the through hole (11), the exterior of the lead screw (9) is provided with an external thread, and the interior of the locking ring (12) is provided with an internal thread matching the external thread.

3. The printing pressure adjustment mechanism of a printing press according to claim 1, characterized in that: The top end of the compression spring (10) is fixedly connected to the top end of the outside of the lead screw (9), and the bottom end of the compression spring (10) is fixedly connected to the top end of the fixing sleeve (3).

4. The printing pressure adjustment mechanism of a printing press according to claim 1, characterized in that: Guide rods (5) are fixed to both sides of the top of the movable frame (7), guide holes (6) are respectively provided inside the two sides of the top of the mounting frame (2), and the top of the guide rod (5) passes through the inside of the guide hole (6).

5. The printing pressure adjustment mechanism of a printing press according to claim 1, characterized in that: Screw holes (13) are respectively arranged on both sides of the bottom of the front end of the base frame (1), fixing bolts (18) are respectively penetrated on both sides of the front end of the mounting plate (17), a wiping cloth strip (16) is transversely fixed to the rear end of the movable plate (15), a screw sleeve (20) is penetrated at the middle position of the bottom of the front end of the movable plate (15), and a driving rod (21) is arranged inside the screw sleeve (20), and the rear end of the driving rod (21) penetrates the interior of the screw sleeve (20) and is movably connected to the front end of the mounting plate (17).

6. The printing pressure adjustment mechanism of a printing press according to claim 1, characterized in that: Sliding rods (19) are respectively fixed to both sides of the front end of the mounting plate (17), and the front ends of the sliding rods (19) penetrate the interior of the movable plate (15).

7. The printing pressure adjustment mechanism of a printing press according to claim 1, characterized in that: The two sides of the top ends of the mounting frame (2) are respectively fixed with fixing frames (4), the two sides of the top rear end of the dust cover (23) are respectively fixed with connecting feet (22), the front end of the dust cover (23) is penetrated by a reserved groove (24), the bottom of the front end of the dust cover (23) is fixed with a protruding handle (25), and the dust cover (23) is made of transparent acrylic material.

8. The printing pressure adjustment mechanism of a printing press according to claim 7, characterized in that: The rear end of the connecting leg (22) is hinged to the inside of the fixing frame (4).

Images