Printing roller cooling device for printing equipment and printing equipment

Abstract

The present invention relates to the technical field of printing equipment, and discloses a printing roller cooling device for printing equipment and printing equipment, wherein the printing roller cooling device comprises: a support frame and a paper feed roller assembly, an LED drying lamp assembly, a paper pressing roller assembly and a pulling head roller assembly mounted on the support frame along the traveling direction of the printing substrate, and further comprises: an upper air cooling assembly and a lower air cooling assembly mounted on the support frame, wherein the upper air cooling assembly and the lower air cooling assembly blow the upper surface and the lower surface of the printing substrate respectively, and the lower air cooling assembly is located below the LED drying lamp assembly, and two groups of upper air cooling assemblies are symmetrically mounted on the LED drying lamp assembly. The upper air cooling assembly and the lower air cooling assembly discharge cold air to the front and back surfaces of the printing substrate, thereby cooling the surface thereof, thereby ensuring that the printing substrate is not affected by the temperature generated by the LED drying lamp assembly during the printing process, thereby instantly solidifying the printing ink and ensuring accurate printing registration.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, in particular to a printing roller cooling device for printing equipment and the printing equipment. Background Art

[0002] During operation, printing equipment needs to use LED drying lamps to emit ultraviolet rays and heat to instantly cure the printing ink printed on the printing substrate (the curing temperature is between 35-55°C). However, the heat generated by the LED drying lamp will also cause the printing substrate to expand due to the heat, resulting in stretching of the printing substrate (especially printing substrates such as plastic film). This will cause the equipment to deviate during the printing process, resulting in inaccurate registration and affecting the quality of the printed products. Summary of the Invention

[0003] To achieve the above-mentioned object, the present invention discloses a printing roller cooling device for printing equipment, comprising: a support frame, and a paper feed roller assembly mounted on the support frame along the traveling direction of the printing substrate, an LED drying lamp assembly, a paper pressing roller assembly and a pull head roller assembly arranged in an upper and lower manner, and further comprising:

[0004] The upper air-cooling assembly and the lower air-cooling assembly are installed on the support frame. The upper air-cooling assembly and the lower air-cooling assembly blow the upper surface and the lower surface of the printed substrate respectively. The lower air-cooling assembly is located below the LED drying lamp assembly. The two sets of upper air-cooling assemblies are symmetrically installed on the LED drying lamp assembly.

[0005] Preferably, the pulling head roller assembly comprises:

[0006] The pull head roller, the two shaft ends of the pull head roller are rotatably installed on the support frame;

[0007] The reducer is installed on the outer wall of the support frame, a servo motor is installed at the power input end of the reducer, and the power output end of the reducer is connected to one shaft end of the pulling head roller through a coupling.

[0008] Preferably, the paper pressing roller assembly comprises:

[0009] The paper pressing roller is located above the pulling head roller, and a pressure channel for the printing substrate to travel is left between the paper pressing roller and the pulling head roller;

[0010] Inner turning arm, both shaft ends of the paper pressing roller are equipped with inner turning arms, one end of the inner turning arm is rotatably mounted on the inner wall of the support frame through the side connecting shaft, the inner turning arm is arranged close to the side connecting shaft, and the other end of the inner turning arm is rotatably mounted with a rotating block;

[0011] The top block has a cross section of a round block structure with a notch, and the rotating block moves along the outer edge of the top block;

[0012] The cylinder is installed on the outer wall of the support frame, and the telescopic end of the cylinder is connected to the top block through an outer turning arm.

[0013] Preferably, the paper pressing roller assembly further comprises:

[0014] An upper fixing block, which is detachably mounted on the inner wall of the support frame and is located above the inner flip arm;

[0015] A return spring, one end of which is disposed against the bottom end of the upper fixed block, and the other end of which is disposed against the end of the inner flip arm close to the rotating block.

[0016] Preferably, the upper air-cooling component is an air-cooled light shield, the upper air outlet is located at the bottom end of the air-cooled light shield, the common cold air inlet is located at the top end of the air-cooled light shield, the upper air outlet is arranged close to the light outlet of the LED drying lamp component, the lower air-cooling component is a rectangular air-cooling tube, the lower air outlet is located at the top end of the rectangular air-cooling tube, and the common cold air inlet is located at the bottom end of the rectangular air-cooling tube.

[0017] Preferably, the LED drying lamp assembly includes: a light box, two groups of upper air-cooling components symmetrically installed on the side ends of the light box, an LED drying lamp group installed on the bottom end of the light box, the LED drying lamp group includes: a lamp shell detachably installed on the bottom end of the shell, the bottom end of the lamp shell is open, two groups of LED drying lamp poles are rotatably installed in the lamp shell, the bottom ends of the LED drying lamp poles are exposed from the bottom end of the lamp shell, one group of LED drying lamp poles is equipped with baffle one, and the other group of LED drying lamp poles is equipped with baffle two, and the middle parts of baffle one and baffle two are arranged in an arc-shaped groove to adapt to the LED drying lamp pole.

[0018] Preferably, the middle part of one end of baffle 1 and baffle 2 in the length direction is closed to install a side mounting shaft 1, the side mounting shaft 1 passes through the lamp housing, a pair of meshing spur gears are installed on the side mounting shaft 1, and a motor 1 is installed on one of the side mounting shafts 1. When baffle 1 and baffle 2 are flipped downward, the splicing block 1 connected to baffle 1 and the splicing block 2 connected to baffle 2 are spliced ​​together, and a slot 1 is left on the splicing block 1 and the splicing block 2. A resettable wedge-shaped block is installed on the inner wall of the lamp housing for limiting the baffle 2 away from the two ends of the splicing blocks. A slot 2 is installed on the top of the wedge-shaped block, and a limiting rod assembly installed on the lamp housing is adapted to the slot 1 and the slot 2.

[0019] Preferably, the limit rod assembly includes: a limit rod 1 and a limit rod 2 installed in parallel in the lamp housing, the limit rod 1 is adapted to the card slot 1 setting, the limit rod 2 is adapted to the card slot 2 setting, the side end of the lamp housing is provided with a vertical groove 1 for facilitating the passage of the limit rod 1 and the limit rod 2, the motor 2 is installed at the side end of the lamp housing, the screw is installed at the output end of the motor 2, the screw block is sleeved on the screw, the limit rod 2 is connected to the screw block, an intermediate connecting rod connected to the limit rod 1 is installed on the screw block, a spring chamber is installed on the inner wall of the lamp housing, a wedge-shaped block is installed in the spring chamber through a spring 1, and a roller block adapted to the two ends of the baffle 2 away from the splicing block is installed on the wedge-shaped block.

[0020] Preferably, a vertical groove 2 is provided at the side end of the lamp housing away from the side mounting axis 1, and the side mounting axis 2 connected to the LED drying lamp pole is slidably installed in the vertical groove 2 and rotatably installed at the two ends of the side mounting frame. The middle section of the side mounting frame is V-shaped, and a set of push plates is provided on the vertical rod, and two sets of springs are provided on the vertical rod and are supported on the push plate 1. The balance bar is rotatably installed at the side end of the lamp housing close to the side mounting frame, and the two ends of the balance bar are respectively supported between the side mounting frame and the push plate 1. The side opening is provided at the side end of the lamp housing, and the push plate 2 is connected to the push plate 1. The push plate 2 extends into the lamp housing from the side opening, and the baffle 1 is adapted to the push plate 2 at one end away from the splicing block.

[0021] The present invention further discloses a printing device, which is equipped with the above printing roller cooling device for the printing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a front view of the present invention;

[0025] Figure 3 A perspective view of the present invention;

[0026] Figure 4 for Figure 2 Sectional view of the AA section;

[0027] Figure 5 This is a bottom view of the LED drying lamp assembly of the present invention;

[0028] Figure 6 This is a cross-sectional view of the LED drying lamp assembly in the present invention Figure 1(Baffle assembly flipped upward);

[0029] Figure 7 This is a diagram showing the assembly of the wedge-shaped clamping block in the spring chamber of the present invention;

[0030] Figure 8 This is a cross-sectional view of the LED drying lamp assembly in the present invention Figure 2 (Baffle assembly flipped downward);

[0031] Figure 9 This is the appearance diagram of the lamp housing in the present invention;

[0032] Figure 10 It is a three-dimensional diagram of baffle 1 and baffle 2 in the present invention.

[0033] Figure: 10. Support frame; 11. Printing substrate; 12. Paper feed roller assembly; 13. LED drying lamp assembly; 14. Paper pressing roller assembly; 15. Slider assembly; 16. Upper air cooling assembly; 17. Lower air cooling assembly; 18. Slider roller; 19. Reducer; 20. Servo motor; 21. Coupling; 22. Paper pressing roller; 23. Inner turning arm; 24. Side connecting shaft; 25. Rotating block; 26. Ejector block; 27. Cylinder; 28. Outer turning arm; 29. ​​Upper fixing block; 30. Return spring; 31. Lamp housing; 32. LED drying lamp column; 33. Baffle 1; 34. Baffle 2; 35. Splicing block 1; 36. Splicing block 2; 37. Wedge-shaped block; 38. Slot 2; 40. Limit rod 1; 41. Limit rod 2; 42. Motor 2; 43. Screw; 44. Screw block; 45. Intermediate connecting rod; 46. Spring chamber; 47. Spring 1; 48. Roller; 49. Side mounting shaft 2; 50. Press plate 1; 51. Vertical rod; 52. Spring 2; 53. Balance rod; 54. Press plate 2; 55. Side mounting bracket. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] Example

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] like Figures 1 to 4As shown, the present embodiment provides a printing roller cooling device for a printing device, comprising: a support frame 10, and a paper feed roller assembly 12, an LED drying lamp assembly 13, a paper pressing roller assembly 14 and a pull head roller assembly 15 mounted on the support frame 10 along the traveling direction of the printing substrate 11, and further comprising:

[0038] The upper air-cooling assembly 16 and the lower air-cooling assembly 17 are installed on the support frame 10. The upper air-cooling assembly 16 and the lower air-cooling assembly 17 blow the upper surface and the lower surface of the printing substrate 11 respectively. The lower air-cooling assembly 17 is located below the LED drying lamp assembly 13. The two groups of upper air-cooling assemblies 16 are symmetrically installed on the LED drying lamp assembly 13.

[0039] The working principle and beneficial effects of the above technical solution are:

[0040] The present invention provides a printing roller cooling device for printing equipment. The printing substrate 11 passes through the paper feed roller assembly 12, the LED drying lamp assembly 13 and the pulling head roller assembly 15 in sequence. The upper air cooling assembly 16 and the lower air cooling assembly 17, which are located at the position of the LED drying lamp assembly 13 and are arranged one above and one below, discharge cold air to the front and back surfaces of the printing substrate 11 to cool its surface. The paper pressing roller assembly 14 and the pulling head roller assembly 15 cooperate to press the printing substrate 11, and the pulling head roller assembly 15 drives the printing substrate 11 to perform intermittent movement. The present invention discloses a printing roller cooling device for printing equipment. The upper air cooling assembly 16 and the lower air cooling assembly 17 discharge cold air to the front and back surfaces of the printing substrate 11 to cool its surface, ensuring that the printing substrate 11 is not affected by the temperature generated by the LED drying lamp assembly 13 during the printing process, thereby instantly solidifying the printing ink and ensuring accurate printing registration.

[0041] In one embodiment, the pull head roller assembly 15 includes:

[0042] The pull head roller 18, the two shaft ends of the pull head roller 18 are rotatably mounted on the support frame 10;

[0043] The reducer 19 is installed on the outer wall of the support frame 10 . A servo motor 20 is installed at the power input end of the reducer 19 . The power output end of the reducer 19 is connected to one shaft end of the pulling head roller 18 through a coupling 21 .

[0044] The working principle and beneficial effects of the above technical solution are:

[0045] The servo motor 20 provides rotational power to control the rotation direction. The servo motor 20 drives the reducer 19, the reducer 19 drives the coupling 21, and the coupling 21 drives the pull head roller 18. The printing substrate 11 is driven by the pull head roller 18 to move intermittently.

[0046] In one embodiment, the platen roller assembly 14 includes:

[0047] The press roller 22 is located above the pull head roller 18. A pressing channel for the printing substrate 11 to travel is left between the press roller 22 and the pull head roller 18.

[0048] Inner flip arm 23, both ends of the paper pressing roller 22 are equipped with inner flip arm 23, one end of the inner flip arm 23 is rotatably mounted on the inner wall of the support frame 10 through the side connecting shaft 24, the inner flip arm 23 is arranged close to the side connecting shaft 24, and the other end of the inner flip arm 23 is rotatably mounted with a rotating block 25;

[0049] The top block 26 has a cross section of a round block structure with a notch, and the rotating block 25 moves along the outer edge of the top block 26;

[0050] The cylinder 27 is mounted on the outer wall of the support frame 10 , and the telescopic end of the cylinder 27 is connected to the top block 26 through an outer flip arm 28 .

[0051] The working principle and beneficial effects of the above technical solution are:

[0052] The cylinder 27 works, thereby driving the outer flip arm 28 connected to it and the top block 26 connected to the outer flip arm 28 to rotate. When the notch position of the top block 26 cooperates with the rotating block 25, the inner flip arm 23 drives the paper pressing roller 22 to sink downward with the side connecting shaft 24, and the gap in the pressure channel between the paper pressing roller 22 and the pulling head roller 18 is reduced. When the non-notch position of the top block 26 cooperates with the rotating block 25, the inner flip arm 23 drives the paper pressing roller 22 to rise upward with the side connecting shaft 24, and the gap in the pressure channel between the paper pressing roller 22 and the pulling head roller 18 is increased. The pressure between the paper pressing roller 22 and the pulling head roller 18 is controlled by the cylinder 27 to press the printing substrate 11.

[0053] In one embodiment, the platen roller assembly 14 further includes:

[0054] An upper fixing block 29 is detachably mounted on the inner wall of the support frame 10 and is located above the inner flip arm 23;

[0055] The return spring 30 has one end abutted against the bottom end of the upper fixed block 29 , and the other end abutted against the end of the inner flip arm 23 close to the rotating block 25 .

[0056] The working principle and beneficial effects of the above technical solution are:

[0057] When the gap in the pressure channel between the paper pressing roller 22 and the pulling head roller 18 increases, the return spring 30 contracts, and when the gap in the pressure channel between the paper pressing roller 22 and the pulling head roller 18 decreases, the return spring 30 returns to its original position and extends. The upper fixed block 29 can be detachably mounted on the inner wall of the support frame 10. By adjusting the height of the upper fixed block 29, the size of the pressing force of the printing substrate 11 on the pulling head roller 18 can be adjusted.

[0058] In one embodiment, the upper air-cooling component 16 is an air-cooled light shield, the upper air outlet is located at the bottom end of the air-cooled light shield, the common cold air inlet is located at the top end of the air-cooled light shield, the upper air outlet is arranged close to the light outlet of the LED drying lamp component 13, the lower air-cooling component 17 is a rectangular air-cooling tube, the lower air outlet is located at the top end of the rectangular air-cooling tube, and the common cold air inlet is located at the bottom end of the rectangular air-cooling tube.

[0059] The working principle and beneficial effects of the above technical solution are:

[0060] The cold air output by the air cooler is connected to the rectangular air cooling tube and two air cooling light shields. Several small holes for exhausting cold air are drilled on the rectangular air cooling tube and the air cooling light shield. The cold air is discharged from the small holes on the rectangular air cooling tube and the air cooling light shield and transferred to the front and back surfaces of the printing substrate 11, so that its surface is cooled, ensuring that the printing substrate 11 is not affected by the temperature generated by the LED drying lamp assembly 13 during the printing process, which plays a role in instantly solidifying the printing ink while ensuring accurate printing positioning.

[0061] like Figures 5 to 10 As shown, in one embodiment, the LED drying lamp assembly 13 includes: a light box, two groups of upper air-cooling components 16 symmetrically installed on the side ends of the light box, and an LED drying lamp group installed on the bottom end of the light box. The LED drying lamp group includes: a lamp shell 31 detachably installed on the bottom end of the shell, the bottom end of the lamp shell 31 is open, two groups of LED drying lamp poles 32 are rotatably installed in the lamp shell 31, and the bottom ends of the LED drying lamp poles 32 are exposed from the bottom end of the lamp shell 31, one group of LED drying lamp poles 32 is provided with baffle 1 33, and the other group of LED drying lamp poles 32 is provided with baffle 2 34, and the middle parts of baffle 1 33 and baffle 2 34 are provided in an arc-shaped groove shape to adapt to the LED drying lamp pole 32.

[0062] The working principle and beneficial effects of the above technical solution are:

[0063] Two groups of LED drying lamp posts 32 work to generate temperature, one group of LED drying lamp posts 32 is provided with baffle 1 33, and the other group of LED drying lamp posts 32 is provided with baffle 2 34. The middle parts of baffle 1 33 and baffle 2 34 are arranged in an arc-shaped groove shape, so as to facilitate accommodating the LED lamp posts 32. The rotation directions of baffle 1 33 and baffle 2 34 are opposite, so as to realize the change of the illumination area of ​​the two groups of LED drying lamp posts 32. Specifically, when baffle 1 33 and baffle 2 34 are flipped upward, baffle 1 33 and baffle 2 34 respectively reduce the blocking of the bottom ends of the two groups of LED drying lamp posts 32, thereby increasing the illumination area of ​​the two groups of LED drying lamp posts 32, and when baffle 1 33 and baffle 2 34 are flipped downward, baffle 1 33 and baffle 2 34 respectively increase the blocking of the bottom ends of the two groups of LED drying lamp posts 32, thereby reducing the illumination area of ​​the two groups of LED drying lamp posts 32.

[0064] In one embodiment, the middle part of one end of the baffle 1 33 and the baffle 2 34 in the longitudinal direction is closed to install a side mounting shaft 1, the side mounting shaft 1 passes through the lamp housing 31, and a pair of meshing spur gears 34 are installed on the side mounting shaft 1, one of the side mounting shafts 1 is installed with a motor 1, and when the baffle 1 33 and the baffle 2 34 are flipped downward, the splicing block 1 35 connected to the baffle 1 33 and the splicing block 2 36 connected to the baffle 2 34 are spliced ​​together, and a slot 1 is left on the splicing block 1 35 and the splicing block 2 36, and a reset wedge-shaped block 37 is installed on the inner wall of the lamp housing 31 for limiting the baffle 2 34 away from the end of the splicing block 2 36, and a slot 2 38 is installed on the top of the wedge-shaped block 37, and the limiting rod assembly installed on the lamp housing 31 is adapted to the setting of the slot 1 and the slot 2 38.

[0065] The working principle and beneficial effects of the above technical solution are:

[0066] The motor drives one of the side mounting shafts 1 to rotate, and the two side mounting shafts 1 rotate in opposite directions through a pair of meshing spur gears 34, thereby driving the baffle 1 33 and the baffle 2 34 connected to the side mounting shaft 1 to rotate in opposite directions inside the lamp housing 31. When the baffle 1 33 and the baffle 2 34 flip downward, the baffle 1 33 and the baffle 2 34 respectively increase the shielding of the bottom ends of the two groups of LED drying lamp posts 32, thereby reducing the illumination area of ​​the two groups of LED drying lamp posts 32. When the baffle 1 33 and the baffle 2 34 completely complete the shielding of the bottom ends of the two groups of LED drying lamp posts 32, the baffle 1 33 close to the splicing block 1 35 end and the baffle 2 34 close to the splicing block 2 36 end flip in the direction close to each other, and the splicing block 1 35 connected to the baffle 1 and the baffle 2 34 close to the splicing block 2 The second splicing block 36 connected to the second plate 34 is spliced ​​together, and a slot 1 is left on the first splicing block 35 and the second splicing block 36, and the baffle 2 34 presses the wedge-shaped block 37 away from the end of the second splicing block 36, and after crossing the wedge-shaped block 37, the wedge-shaped block 37 is reset to complete the limitation of the baffle 2 34 away from the end of the second splicing block 36. At this time, the limit rod assembly works to complete the limitation of the slot 1 and the slot 2, and then completes the locking of the first splicing block 35, the second splicing block 36 and the wedge-shaped block 37. When the baffle 1 33 and the baffle 2 34 completely complete the covering of the bottom ends of the two groups of LED drying lamp poles 32, the baffle 1 33 and the baffle 2 34 are fixed, thereby completing the protection of the two groups of LED drying lamp poles 32 when the LED drying lamp assembly 13 is not working.

[0067] In one embodiment, the limit rod assembly includes: a limit rod 1 40 and a limit rod 2 41 installed in parallel in the lamp housing 31, the limit rod 1 40 is adapted to the card slot 1 setting, the limit rod 2 41 is adapted to the card slot 2 38 setting, the side end of the lamp housing 31 is opened with a vertical groove 1 for facilitating the passage of the limit rod 1 40 and the limit rod 2 41, the motor 2 42 is installed at the side end of the lamp housing 31, the screw 43 is installed at the output end of the motor 2 42, the screw block 44 is sleeved on the screw 43, the limit rod 2 41 is connected to the screw block 44, and the screw block 44 is installed with an intermediate connecting rod 45 connected to the limit rod 1 40, the inner wall of the lamp housing 31 is installed with a spring chamber 46, the wedge block 37 is installed in the spring chamber 46 through the spring 1 47, and the wedge block 37 is installed with a roller 48 adapted to the end of the baffle 2 34 away from the splicing block 2 36.

[0068] The working principle and beneficial effects of the above technical solution are:

[0069] When it is necessary to complete the protection of the two groups of LED drying lamp poles 32, the baffle 1 33 is close to the end of the splicing block 1 35 and the baffle 2 34 is close to the end of the splicing block 2 36, respectively, and the splicing block 1 35 connected to the baffle 1 33 and the splicing block 2 36 connected to the baffle 2 34 are spliced ​​together. A card slot 1 is left on the splicing block 1 35 and the splicing block 2 36, and the baffle 2 34 is away from the end of the splicing block 2 36 to press the roller 48 and the wedge-shaped card block 37 connected to the roller 48, and the wedge-shaped card block 37 is elastic. The spring 1 47 moves in the contraction direction and is received in the spring chamber 46. After the baffle 2 34 moves away from the end of the splicing block 2 36 and passes over the wedge-shaped block 37, the spring 1 47 is reset and the wedge-shaped block 37 is reset to complete the limit of the baffle 2 34 away from the end of the splicing block 2 36. Then the motor 2 42 is started, thereby driving the screw 43 installed on the output end of the motor 2 42 to rotate. The screw block 44 mounted on the screw 43 drives the limit rod 1 40 and the limit rod 2 41 to fall synchronously through the intermediate connecting rod 45. Figure 8 As shown, the limit rod 1 40 is clamped in the clamping slot 1, and the limit rod 2 41 is clamped in the clamping slot 2 38, thereby completing the locking of the splicing block 1 35, the splicing block 2 36 and the wedge-shaped clamping block 37, thereby completing the fixation of the baffle 1 33 and the baffle 2 34. When it is necessary to release the fixation of the baffle 1 33 and the baffle 2 34, the motor 2 42 works in the reverse direction, the limit rod 1 40 and the limit rod 2 41 are lifted, and the motor 1 works in the reverse direction, and the baffle 1 33 close to the splicing block 1 35 end and the baffle 2 34 close to the splicing block 2 36 end are flipped away from each other, and the splicing block 1 35 connected to the baffle 1 33 and the splicing block 2 36 connected to the baffle 2 34 are released from splicing, and the baffle 2 34 squeezes the inclined surface of the wedge-shaped clamping block 37 away from the splicing block 2 36 end, and the wedge-shaped clamping block 37 retreats into the spring chamber 46 for the second time.

[0070] In one embodiment, a vertical groove 2 is provided at the side end of the lamp housing 31 away from the side mounting axis 1. The side mounting axis 2 49 connected to the LED drying lamp column 32 is slidably installed in the vertical groove 2 and rotatably installed at the two ends of the side mounting frame 55. The middle section of the side mounting frame 55 is V-shaped. The press plate 1 50 is sleeved on the vertical rod 51. The spring 2 52 is sleeved on the vertical rod 51 and is abutted on the press plate 1 50. The balance bar 53 is rotatably installed at the side end of the lamp housing 31 close to the side mounting frame 55. The two ends of the balance bar 53 are respectively abutted between the side mounting frame 55 and the press plate 1 50. The side opening is opened at the side end of the lamp housing 31. The press plate 2 54 is connected to the press plate 1 50. The press plate 2 54 extends into the lamp housing 31 from the side opening. The baffle 1 33 is adapted to the press plate 2 54 at the end away from the splicing block 1 35.

[0071] The working principle and beneficial effects of the above technical solution are:

[0072] When the baffle 1 33 and the baffle 2 34 are flipped downward, the baffle 1 33 and the baffle 2 34 respectively increase the shielding of the bottom ends of the two sets of LED drying lamp posts 32, thereby reducing the illumination area of ​​the two sets of LED drying lamp posts 32. During the flipping process, the baffle 1 33 is away from the end of the splicing block 1 35 and presses on the pressing plate 2 54. The pressing plate 2 54 drives the pressing plate 1 50 connected thereto to move along the vertical rod 51 in the contraction direction of the spring 2 52. The pressing plate 1 50 is as shown in FIG. Figure 9 As shown, after the balance bar 53 is pressed, the balance bar 53 moves away from the pressing plate 50 and lifts the side mounting frame 55. The side mounting frame 55 drives the two groups of LED drying lamp poles 32 to lift up in the lamp housing 31 through the side mounting shaft 2 49. The two groups of LED drying lamp poles 32 are further received in the lamp housing 31, thereby further playing a protective role.

[0073] This embodiment further provides a printing device, which is equipped with the above printing roller cooling device for the printing device.

[0074] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A printing roller cooling device for a printing device, comprising: The support frame (10) and a paper feed roller assembly (12), an LED drying lamp assembly (13), a paper pressing roller assembly (14) and a pull head roller assembly (15) mounted on the support frame (10) along the traveling direction of the printing substrate (11) are characterized in that they also include: An upper air cooling assembly (16) and a lower air cooling assembly (17) are mounted on the support frame (10), the upper air cooling assembly (16) and the lower air cooling assembly (17) respectively blow the upper surface and the lower surface of the printing substrate (11), the lower air cooling assembly (17) is located below the LED drying lamp assembly (13), and the two sets of upper air cooling assemblies (16) are symmetrically mounted on the LED drying lamp assembly (13); The LED drying lamp assembly (13) comprises: a light box, two sets of upper air-cooling assemblies (16) symmetrically mounted on the side ends of the light box, an LED drying lamp assembly mounted on the bottom end of the light box, the LED drying lamp assembly comprising: a lamp housing (31) detachably mounted on the bottom end of the housing, the bottom end of the lamp housing (31) being open-type, two sets of LED drying lamp posts (32) being rotatably mounted in the lamp housing (31), the bottom ends of the LED drying lamp posts (32) being exposed from the bottom end of the lamp housing (31), one set of the LED drying lamp posts (32) being provided with a baffle 1 (33), and the other set of the LED drying lamp posts (32) being provided with a baffle 2 (34), the middle portions of the baffle 1 (33) and the baffle 2 (34) being provided with an arc-shaped groove to fit the LED drying lamp posts (32); The middle part of one end of the baffle plate 1 (33) and the baffle plate 2 (34) in the longitudinal direction is closed, and a side mounting shaft 1 is installed. The side mounting shaft 1 passes through the lamp housing (31), and a pair of meshing spur gears are installed on the side mounting shaft 1. A motor 1 is installed on one of the side mounting shafts. When the baffle plate 1 (33) and the baffle plate 2 (34) are turned downward, the splicing block 1 (35) connected to the baffle plate 1 (33) and the splicing block 1 (35) connected to the baffle plate 2 (34) are The connected splicing blocks 2 (36) are spliced ​​together, and a first card slot is left on the splicing blocks 1 (35) and the splicing blocks 2 (36). The inner wall of the lamp housing (31) is provided with a resettable wedge-shaped card block (37) for limiting the baffle 2 (34) away from the end of the splicing block 2 (36). The top of the wedge-shaped card block (37) is provided with a second card slot (38). The limiting rod assembly installed on the lamp housing (31) is adapted to the arrangement of the first card slot and the second card slot (38); The limiting rod assembly includes: a limiting rod 1 (40) and a limiting rod 2 (41) installed in parallel in the lamp housing (31); the limiting rod 1 (40) is adapted to be set in the card slot 1; the limiting rod 2 (41) is adapted to be set in the card slot 2 (38); a vertical slot 1 is provided at the side end of the lamp housing (31) for facilitating the passing of the limiting rod 1 (40) and the limiting rod 2 (41); the motor 2 (42) is installed at the side end of the lamp housing (31); the screw (43) is installed at the output end of the motor 2 (42); The block (44) is sleeved on the screw rod (43), the limiting rod 2 (41) is connected to the screw block (44), and the screw block (44) is installed with an intermediate connecting rod (45) connected to the limiting rod 1 (40). The inner wall of the lamp housing (31) is installed with a spring chamber (46), and the wedge-shaped clamping block (37) is installed in the spring chamber (46) through the spring 1 (47). The wedge-shaped clamping block (37) is installed with a rolling block (48) adapted to the end of the baffle 2 (34) away from the splicing block 2 (36).

2. The printing roller cooling device for printing equipment according to claim 1, characterized in that: The pull head roller assembly (15) includes: A pull head roller (18), wherein both shaft ends of the pull head roller (18) are rotatably mounted on the support frame (10); A reducer (19) is installed on the outer wall of the support frame (10), a servo motor (20) is installed at the power input end of the reducer (19), and a power output end of the reducer (19) is connected to one shaft end of the pulling head roller (18) through a coupling (21).

3. The printing roller cooling device for printing equipment according to claim 1, characterized in that: The paper pressing roller assembly (14) comprises: A paper pressing roller (22), the paper pressing roller (22) is located above the pull head roller (18), and a pressure channel for the printing substrate (11) to travel is left between the paper pressing roller (22) and the pull head roller (18); An inner flip arm (23), both shaft ends of the paper pressing roller (22) are equipped with an inner flip arm (23), one end of the inner flip arm (23) is rotatably mounted on the inner wall of the support frame (10) through a side connecting shaft (24), the inner flip arm (23) is arranged close to the side connecting shaft (24), and the other end of the inner flip arm (23) is rotatably mounted with a rotating block (25); A top block (26), wherein the cross section of the top block (26) is a round block structure with a notch, and the rotating block (25) moves along the outer edge of the top block (26); The cylinder (27) is mounted on the outer wall of the support frame (10), and the telescopic end of the cylinder (27) is connected to the top block (26) through the outer turning arm (28).

4. The printing roller cooling device for printing equipment according to claim 3, characterized in that: The paper pressing roller assembly (14) further comprises: An upper fixing block (29), the upper fixing block (29) is detachably mounted on the inner wall of the support frame (10), and the upper fixing block (29) is located above the inner flip arm (23); A return spring (30) is provided, wherein one end of the return spring (30) is abutted against the bottom end of the upper fixed block (29), and the other end of the return spring (30) is abutted against the end of the inner flip arm (23) close to the rotating block (25).

5. The printing roller cooling device for printing equipment according to claim 1, characterized in that: The upper air-cooling component (16) is an air-cooling light shield, the upper air outlet is located at the bottom end of the air-cooling light shield, the shared cold air inlet is located at the top end of the air-cooling light shield, the upper air outlet is arranged close to the light outlet of the LED drying lamp component (13), the lower air-cooling component (17) is a rectangular air-cooling pipe, the lower air outlet is located at the top end of the rectangular air-cooling pipe, and the shared cold air inlet is located at the bottom end of the rectangular air-cooling pipe.

6. The printing roller cooling device for printing equipment according to claim 1, characterized in that: A vertical groove 2 is provided at the side end of the lamp housing (31) away from the side mounting shaft 1. The side mounting shaft 2 (49) connected to the LED drying lamp column (32) is slidably mounted in the vertical groove 2 and is rotatably mounted on both ends of the side mounting frame (55). The middle section of the side mounting frame (55) is V-shaped. The pressing plate 1 (50) is sleeved on the vertical rod (51). The spring 2 (52) is sleeved on the vertical rod (51) and is pressed against the pressing plate 1 (50). The balance bar ( The first and second push plates (53) are rotatably mounted on the side end of the lamp housing (31) near the side mounting frame (55), and the two ends of the balance bar (53) are respectively disposed between the side mounting frame (55) and the first push plate (50). The side opening is provided at the side end of the lamp housing (31), and the second push plate (54) is connected to the first push plate (50). The second push plate (54) extends into the lamp housing (31) from the side opening. The end of the baffle (33) away from the first splicing block (35) is adapted to fit the second push plate (54).

7. A printing device, characterized in that: A printing roller cooling device for a printing device according to any one of claims 1 to 6 is used.

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