Winding mechanism of color printing machine

Abstract

The winding mechanism of the color printing machine comprises a supporting platform, the upper end of the left side of the supporting platform is rotationally connected with a transmission roller, a supporting frame is fixed to the upper end of the middle of the supporting platform, supporting seats are fixed to the lower ends of the two sides of the supporting frame, and the supporting seats are rotationally connected with guide rollers. A positioning frame is fixed to the rear end of the rear side of the supporting platform, a positioning shaft penetrates through the upper end of the positioning frame, a winding roller penetrates through the front end of the positioning shaft, a second electric push rod is fixed to the upper end of the supporting frame, a movable plate is fixed to the lower end of the second electric push rod, and a cutting knife is connected to the lower end of the movable plate. According to the winding mechanism of the color printing machine, by arranging the cutting structure, cut-off treatment can be conducted on wound printed matter immediately after winding is completed, rotating power of the winding structure is interrupted synchronously during cutting, so that operation convenience is improved, and power transmission is restored for the winding structure after the cutting structure moves upwards and completely resets.

Description

Technical Field

[0001] The utility model relates to the technical field of winding devices, in particular to a winding mechanism of a color printing machine. Background Art

[0002] Color printing is a method of copying images or text in color (as opposed to printing in black and white, or so-called). It includes many steps, or conversion processes, to produce high-quality color copies. After printing, a color printer needs to use a winding mechanism to rewind the paper for subsequent processing, but there are still some problems with the existing printing press rewinding mechanism when in use.

[0003] The cam is secured to the upper and lower edges of the cam, and a second tension roller is secured to the lower edge of the cam.

[0004] Therefore, we propose a winding mechanism for a color printing press to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a winding mechanism for a color printing press to solve the problem that the existing device proposed in the background art is inconvenient for cutting the printed matter after winding and the winding roller has poor installation stability.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A winding mechanism of a color printing press, comprising a supporting platform:

[0007] The upper left end of the support platform is rotatably connected to a transmission roller, and a support frame is fixed to the upper middle end of the support platform, support seats are fixed to the lower ends of both sides of the support frame, and the support seats are rotatably connected to guide rollers;

[0008] A positioning frame is fixed to the rear end of the support platform, a positioning shaft is passed through the upper end of the positioning frame, and a winding roller is passed through the front end of the positioning shaft;

[0009] The upper end of the support frame is fixed with a second electric push rod, the lower end of the second electric push rod is fixed with a movable plate, and the lower end of the movable plate is connected with a cutting knife.

[0010] Preferably, the positioning shaft is rotatably connected to the positioning frame, and a limiting strip is fixed to the outer wall of the middle portion of the positioning shaft, and the limiting strip is slidably connected to the winding roller.

[0011] By adopting the above technical solution, the winding roller can be kept rotating synchronously with the rotation of the positioning shaft through the cooperation between the limit bar and the positioning shaft.

[0012] Preferably, a first electric push rod is installed at the upper right end of the support platform, and the first electric push rod is arranged at the front end of the winding roller. A limiting block is fixed at the upper end of the first electric push rod, and the limiting block is designed in a "U" shape, and the upper end of the limiting block is engaged with the positioning shaft.

[0013] By adopting the above technical solution, the first electric push rod cooperates with the limit block, and the first electric push rod is used to push the limit block up and down, so that the limit block supports the front end of the positioning shaft and can limit the horizontal forward and backward movement of the winding roller.

[0014] Preferably, two groups of the second electric push rods are provided, and the second electric push rods are symmetrically arranged on the front and rear sides of the support frame. A cutting pad is provided at the lower end of the cutting knife, and the lower end of the cutting pad is fixedly connected to the support platform.

[0015] By adopting the above technical solution, the second electric push rod can drive the movable plate and the cutting knife to rise and fall synchronously, and the cooperation between the cutting knife and the cutting pad is used to complete the cutting and truncation of the printed product, thereby improving the overall convenience of winding.

[0016] Preferably, a power motor is fixed to the upper end of the rear side of the movable plate, and a driving gear is fixed to the rear end of the power motor. The inner wall of the rear side of the support frame is rotatably connected to a driven gear, and the lower end of the driven gear is meshed with the driving gear.

[0017] By adopting the above technical solution, the power motor can provide rotational power for the winding structure, the power motor is used to drive the driving gear to rotate, and the driving gear provides rotational power for the driven gear.

[0018] Preferably, the rear end of the driven gear is connected to a first pulley, the rear side of the positioning shaft is fixedly connected to a second pulley, and a transmission belt is connected between the second pulley and the first pulley.

[0019] By adopting the above technical solution, the first pulley is driven to rotate by the driven gear, and the first pulley synchronously drives the second pulley, the positioning shaft and the limit bar to rotate by using the transmission belt.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the winding mechanism of the color printing press;

[0021] 1. The cutting mechanism can cut the rolled printed material immediately after winding is completed, and the rotational power of the winding mechanism is interrupted simultaneously during cutting to improve the convenience of operation. The power transmission of the winding mechanism is restored after the cutting mechanism moves upward and is fully reset.

[0022] 2. The design of the first electric push rod and the U-shaped limit block can limit the horizontal forward and backward movement of the winding roller. When the limit block moves downward, the restriction on the winding roller is quickly released, which improves the convenience of disassembly and assembly of the winding roller and facilitates the replacement of the winding roller after winding is completed, further improving the overall winding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model from the left side;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model from the right side;

[0025] Figure 3 This is a schematic diagram of the structure of the movable plate and cutting knife of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the first pulley and the transmission belt of the utility model;

[0027] Figure 5 This is a schematic diagram of the positioning shaft and limit bar structure of the utility model.

[0028] In the figure: 1. Support platform; 2. Transmission roller; 3. Support frame; 4. Support seat; 5. Guide roller; 6. Positioning frame; 7. Positioning shaft; 8. Winding roller; 9. Limit strip; 10. First electric push rod; 11. Limit block; 12. Second electric push rod; 13. Movable plate; 14. Cutting knife; 15. Cutting pad; 16. Power motor; 17. Driving gear; 18. Driven gear; 19. First pulley; 20. Second pulley; 21. Transmission belt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-5The utility model provides a technical solution: a winding mechanism of a color printing machine, comprising a support platform 1, a transmission roller 2 is rotatably connected to the upper left end of the support platform 1, and a support frame 3 is fixed to the upper middle end of the support platform 1, and support seats 4 are fixed to the lower ends of both sides of the support frame 3, and the support seats 4 are rotatably connected to guide rollers 5; a positioning frame 6 is fixed to the rear end of the support platform 1, and a positioning shaft 7 passes through the upper end of the positioning frame 6, and a winding roller 8 passes through the front end of the positioning shaft 7; the positioning shaft 7 is rotatably connected to the positioning frame 6, and a limiting strip 9 is fixed to the outer wall of the middle of the positioning shaft 7, and the limiting strip 9 is slidably connected to the winding roller 8; a first electric push rod 10 is installed on the upper right end of the support platform 1, and the first electric push rod 10 is arranged at the front end of the winding roller 8, a limiting block 11 is fixed on the upper end of the first electric push rod 10, and the limiting block 11 is fixed on the upper end of the first electric push rod 10, and the limiting block 11 is fixed on the upper end of the first electric push rod 10. The card block 11 is designed in a "U" shape, and the upper end of the limit card block 11 is engaged with the positioning shaft 7. When in use, the transmission roller 2 is used to transport the printed matter, and the two sets of support seats 4 are used to install the guide roller 5. The two sets of guide rollers 5 can improve the stability of the printed matter during transportation and keep it in a taut state. The winding roller 8 is installed by cooperating with the positioning shaft 7 and the limit strip 9. The printed matter is wound by the winding roller 8, and the first electric push rod 10 and the limit card block 11 cooperate to limit the horizontal forward and backward movement of the winding roller 8, thereby maintaining the stability of winding. When winding is completed, the limit card block 11 can be driven downward by the first electric push rod 10 to release the blockage from the positioning shaft 7 and the forward movement of the winding roller 8. The winding roller 8 can be quickly replaced, which indirectly improves the efficiency of winding.

[0031] A second electric push rod 12 is fixed to the upper end of the support frame 3, and a movable plate 13 is fixed to the lower end of the second electric push rod 12, and a cutting knife 14 is connected to the lower end of the movable plate 13; two groups of second electric push rods 12 are provided, and the second electric push rods 12 are symmetrically arranged on the front and rear sides of the support frame 3, and a cutting pad 15 is provided at the lower end of the cutting knife 14, and the lower end of the cutting pad 15 is fixedly connected to the support platform 1; through the design of the two groups of second electric push rods 12, the movable plate 13 can be driven to rise and fall stably when it is working, and the cutting knife 14 can be driven to move synchronously when the movable plate 13 is raised and lowered. By utilizing the cooperation of the cutting knife 14 and the cutting pad 15, the printed matter can be cut off after the winding is completed, thereby improving the efficiency and convenience of winding.

[0032] A power motor 16 is fixed to the upper end of the rear side of the movable plate 13, and a driving gear 17 is fixed to the rear end of the power motor 16. The inner wall of the rear side of the support frame 3 is rotatably connected to a driven gear 18, and the lower end of the driven gear 18 is meshed with the driving gear 17; the rear end of the driven gear 18 is connected to a first pulley 19, and the rear side of the positioning shaft 7 is fixedly connected to a second pulley 20, and a transmission belt 21 is connected between the second pulley 20 and the first pulley 19; the setting of the power motor 16 can provide rotational power for the winding structure, and the driving gear 17 is driven to rotate by the power motor 16. The driving gear 17 uses the driven gear 18 to drive the first pulley 19 to rotate, and the first pulley 19 drives the second pulley 20, the positioning shaft 7, the limit bar 9 and the winding roller 8 to rotate and rewind through the transmission belt 21. The power motor 16 and the driving gear 17 can rise and fall synchronously with the movable plate 13, and the transmission of the winding structure rotation can be stopped when the printed product is cut, avoiding the cutting offset or deformation of the printed product caused by synchronous rewinding during cutting, improving the quality and convenience of operation, and can provide power transmission to the winding structure again after the cutting structure moves upward and is completely reset.

[0033] 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.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A winding mechanism of a color printing press, comprising a support platform (1), characterized in that: The upper left end of the support platform (1) is rotatably connected to a transmission roller (2), and a support frame (3) is fixed to the upper middle end of the support platform (1), support seats (4) are fixed to the lower ends of both sides of the support frame (3), and the support seats (4) are rotatably connected to guide rollers (5); A positioning frame (6) is fixed to the rear end of the rear side of the support platform (1), a positioning shaft (7) passes through the upper end of the positioning frame (6), and a winding roller (8) passes through the front end of the positioning shaft (7); A second electric push rod (12) is fixed to the upper end of the support frame (3), a movable plate (13) is fixed to the lower end of the second electric push rod (12), and a cutting knife (14) is connected to the lower end of the movable plate (13); A power motor (16) is fixed to the upper end of the rear side of the movable plate (13), and a driving gear (17) is fixed to the rear end of the power motor (16); a driven gear (18) is rotatably connected to the inner wall of the rear side of the support frame (3), and the lower end of the driven gear (18) is meshed with the driving gear (17); The rear end of the driven gear (18) is connected to a first pulley (19), the rear side of the positioning shaft (7) is fixedly connected to a second pulley (20), and a transmission belt (21) is connected between the second pulley (20) and the first pulley (19).

2. The winding mechanism of a color printing press according to claim 1, characterized in that: The positioning shaft (7) is rotatably connected to the positioning frame (6), and a limiting strip (9) is fixed to the outer wall of the middle portion of the positioning shaft (7), and the limiting strip (9) is slidably connected to the winding roller (8).

3. The winding mechanism of a color printing press according to claim 2, characterized in that: A first electric push rod (10) is installed at the upper right end of the support platform (1), and the first electric push rod (10) is arranged at the front end of the winding roller (8). A limit block (11) is fixed to the upper end of the first electric push rod (10), and the limit block (11) is designed in a "U"-shaped structure, and the upper end of the limit block (11) is engaged with the positioning shaft (7).

4. The winding mechanism of a color printing press according to claim 1, characterized in that: Two groups of the second electric push rods (12) are provided, and the second electric push rods (12) are symmetrically arranged on the front and rear sides of the support frame (3). A cutting pad (15) is provided at the lower end of the cutting knife (14), and the lower end of the cutting pad (15) is fixedly connected to the support platform (1).

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