Paperboard printing head adjusting device

Abstract

The utility model discloses a paperboard printing head adjusting device which comprises a transverse driving assembly used for adjusting transverse displacement of a printing head, a longitudinal driving assembly used for adjusting longitudinal displacement of the printing head, a vertical driving assembly used for adjusting the height of the printing head and guide plates symmetrically arranged on the two sides of the printing head and matched with a paperboard. One side, close to the paperboard, of each guide plate extends to form a guide part bent outwards, the paperboard is conveyed to the position between the two guide plates along the guide parts, the guide plates are in an L shape, and the transverse driving assembly, the longitudinal driving assembly and the vertical driving assembly conduct transverse adjustment, longitudinal adjustment and vertical adjustment on the printing head with any point on a folding line of one guide plate as the original point. Through cooperation of the guide plate, the transverse driving assembly, the longitudinal driving assembly and the vertical driving assembly, it can be guaranteed that the printing head and a paperboard can be kept at the relative position, then it is guaranteed that printed patterns or characters are located at the proper position of the paperboard, and the printing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard printing, in particular to a cardboard printing head adjusting device. Background Art

[0002] Before packaging products, cardboard will be printed with unique patterns or texts. This process requires the use of a printing press. Among them, an important component on the printing press is the printing head, which is used to transfer ink onto the cardboard. Before printing, the position of the printing head needs to be adjusted. The existing printing heads can be adjusted horizontally, longitudinally, and vertically. By adjusting the position of the printing head, it is ensured that the patterns or texts can be accurately printed at the corresponding positions on the cardboard, guaranteeing the printing quality.

[0003] Currently, the position of the printing head is adjusted based on its relative position with the printing table. After the position adjustment is completed, the cardboard is conveyed to the printing table by a conveyor belt or conveyor rollers for printing. Since the cardboard may shift during the conveying process, the position of the cardboard is offset when it reaches the printing table, and the printing head cannot accurately correspond to the appropriate position on the cardboard. As a result, the positions of the printed patterns or texts are deviated, affecting the printing quality. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a cardboard printing head adjusting device to improve the printing quality.

[0005] The technical solution adopted by the utility model is as follows:

[0006] The cardboard printing head adjusting device includes a horizontal driving component for adjusting the horizontal displacement of the printing head, a longitudinal driving component for adjusting the longitudinal displacement of the printing head, a vertical driving component for adjusting the height of the printing head, and also includes guide plates symmetrically arranged on both sides of the printing head and adapted to the cardboard. The guide plates extend with outwardly curved guiding portions on the side close to the cardboard. The cardboard is conveyed between the two guide plates along the guiding portions. The guide plates are L-shaped. The horizontal driving component, the longitudinal driving component, and the vertical driving component respectively adjust the printing head horizontally, longitudinally, and vertically with any point on the fold line of one of the guide plates as the origin.

[0007] Explanation:

[0008] The principle of the utility model: Adapted to the cardboard means that there is a certain gap between the guide plate and the cardboard. The gap can ensure the smooth movement of the cardboard and at the same time avoid the cardboard from shaking when moving.

[0009] In this solution, the horizontal drive component, the vertical drive component, and the vertical drive component adjust the print head horizontally, vertically, and vertically with any point on the folding line of one of the guide plates as the origin. After adjustment, the print head and the guide plate remain relatively fixed. Also, since the guide plate is provided with a guide portion that bends outward, when the cardboard is transported, even if the cardboard is offset, the cardboard can be straightened under the guidance of the guide portion and conveyed between the two guide plates. At this time, the two guide plates and the cardboard maintain a relative position. Since the print head and the guide plate remain relatively fixed, the print head and the cardboard maintain a relative position, and thus the printed pattern or text is kept in the appropriate position on the cardboard, ensuring the printing quality.

[0010] In this solution, the guide plates are L-shaped. When the cardboard is conveyed between the two guide plates, the two sides of the cardboard cooperate with the vertical plates of the two guide plates respectively, which can effectively prevent the cardboard from offsetting. The upper side of the cardboard cooperates with the horizontal plate of the guide plate, which can keep the cardboard flat.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. Through the cooperation of the guide plate, the horizontal drive component, the vertical drive component, and the vertical drive component in this solution, it can be ensured that the print head can maintain a relative position with the cardboard during printing, and thus the printed pattern or text is located in the appropriate position on the cardboard, ensuring the printing quality and reducing the generation of defective products.

[0013] 2. The guide plates in this solution are L-shaped, which can not only guide the two sides of the cardboard to prevent the cardboard from offsetting, but also flatten the cardboard so that the cardboard remains flat during printing, further improving the printing quality.

[0014] As a preferred embodiment of the present utility model, an adjustment component for adjusting the synchronous inward or outward movement of the two guide plates is provided on the two guide plates. In this solution, by the synchronous inward or outward movement of the two guide plates, the purpose of adjusting the distance between the guide plates can be achieved, and thus cardboard of different widths can be adapted.

[0015] As a preferred embodiment of the present utility model, the adjustment component includes sliding rods respectively fixed on the two guide plates. The sliding rods are vertically arranged, and sleeves are sleeved outside the sliding rods. The upper ends of the sleeves are slidably connected to the frame. Bar-shaped holes communicating with the inside of the sleeves are respectively opened on the opposite sides of the two sleeves. Adjusting rods are respectively fixed on the opposite sides of the two sliding rods. After the two adjusting rods pass through the corresponding bar-shaped holes, an adjusting member is connected between the passing ends of the two adjusting rods. By rotating the adjusting member, the two adjusting rods can move synchronously inward or outward, and further drive the two sliding rods and the guide plates fixed to the sliding rods to move synchronously inward or outward to achieve the purpose of adjusting the distance between the guide plates.

[0016] As a preferred embodiment of the present utility model, a lifting assembly for driving the two guiding plates to lift synchronously is provided on the two guiding plates. In this solution, the two guiding plates can be lifted synchronously to adjust the height of the guiding plates, and thus can adapt to cardboard of different thicknesses.

[0017] As a preferred embodiment of the present utility model, the lifting assembly includes a rotating ring rotatably connected to the middle of the connecting sleeve. A vertically arranged adjusting cylinder is fixed on the rotating ring. A lead screw is arranged in the adjusting cylinder in a matching manner, and the upper end of the lead screw is rotatably connected to the frame. In this solution, by rotating the lead screw, the adjusting cylinder can be driven to move up and down, and then the connecting sleeve can be driven to move up and down. The connecting sleeve is connected to the adjusting rod, and the adjusting rod is connected to the sliding rod. Therefore, the connecting sleeve can drive the sliding rod to move up and down to achieve the purpose of adjusting the height of the guiding plate.

[0018] As a preferred embodiment of the present utility model, a T-shaped slider is fixed to the upper end of the sleeve, and a chute for matching the T-shaped slider is provided on the lower side of the frame. In this solution, the cooperation between the T-shaped slider and the chute can play a guiding role when the guiding plate moves inwards or outwards, making the movement more stable.

[0019] As a preferred embodiment of the present utility model, the adjusting member includes a connecting sleeve, and two adjusting rods are respectively threadedly connected to both ends of the connecting sleeve, and the thread directions at both ends of the connecting sleeve are opposite. In this solution, the thread directions at both ends of the connecting sleeve are opposite. When the connecting sleeve is rotated, the two adjusting rods at both ends of the connecting sleeve move in opposite directions, and thus the purpose of moving synchronously towards the middle or towards both sides to increase or decrease the distance is achieved. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 2 is a top view of an embodiment of the present utility model;

[0022] Figure 3 is Figure 1 an enlarged view of area A in

[0023] Figure 4 is a partial structural cross-sectional view of an embodiment of the present utility model.

[0024] The reference numerals include:

[0025] frame 1, guiding plate 2, sleeve 3, strip-shaped hole 4, sliding rod 5, adjusting rod 6, connecting sleeve 7, rotating ring 8, adjusting cylinder 9, lead screw 10, T-shaped slider 11, chute 12, motor 13, printing table 14, conveying device 15, printing head 16, cardboard 17. Detailed Embodiment

[0026] Typical embodiments embodying the features and advantages of the present utility model will be specifically described in the following description. It should be understood that the present utility model can have various variations in different embodiments, all of which do not depart from the scope of the present utility model, and the descriptions and illustrations therein are essentially for illustrative purposes and not for limiting the present utility model.

[0027] In the description of the present application, the orientation or positional relationship indicated by terms such as "top", "bottom", "one end", "one side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application.

[0028] See Figure 1 and Figure 2 As shown, this embodiment discloses a cardboard printing head adjusting device, including a frame 1. A printing table 14 and a conveying device 15 are installed on the frame 1. The conveying device 15 is used to convey the cardboard 17 to the printing table 14. A printing head 16 is installed above the printing table 14. A lateral driving assembly, a longitudinal driving assembly, and a vertical driving assembly are also installed on the frame 1. The lateral driving assembly is used to drive the printing head 16 to perform lateral displacement, the longitudinal driving assembly is used to drive the printing head 16 to perform longitudinal displacement, and the vertical driving assembly is used to drive the printing head 16 to adjust the height. In this embodiment, the lateral driving assembly adopts a lead screw slider assembly, the longitudinal driving assembly adopts a gear rack assembly, and the vertical driving assembly adopts a cylinder assembly.

[0029] This solution further includes guide plates 2 symmetrically arranged on both sides of the printing head 16. The distance between the two guide plates 2 is adapted to the width of the cardboard 17. Specifically, see Figure 3 As shown, the cross-section of the guide plate 2 is L-shaped. The guide plate 2 integrally extends a guide portion that bends outward on the side close to the conveying device 15. When the cardboard 17 is conveyed by the conveying device 15 to a position close to the printing table 14, the guide portion is used to guide the cardboard 17 so that the cardboard 17 is conveyed forward along the guide plate 2 and reaches between the two guide plates 2. At this time, both sides of the cardboard 17 cooperate with the vertical plates of the two guide plates 2 respectively, which can effectively prevent the cardboard 17 from shifting. The upper side of the cardboard 17 cooperates with the horizontal plate of the guide plate 2, which can keep the cardboard 17 flat and is beneficial to improving the printing quality.

[0030] Furthermore, an adjusting assembly for adjusting the synchronous inward or outward movement of the two guide plates 2 is provided on the two guide plates 2. By the synchronous inward or outward movement of the two guide plates 2, the purpose of adjusting the distance between the guide plates 2 can be achieved, and thus cardboard 17 with different widths can be adapted. Specifically, see Figure 4As shown in the figure, the adjusting component includes sliding rods 5 respectively fixed on the upper sides of two guiding plates 2. The sliding rods 5 are vertically arranged. A sleeve 3 is sleeved outside the sliding rods 5. A T-shaped slider 11 is fixed at the upper end of the sleeve 3. A chute 12 for mating with the T-shaped slider 11 is formed on the frame 1. By the cooperation of the T-shaped slider 11 and the chute 12, it can play a guiding role when the guiding plates 2 move inwards or outwards, making the movement more stable. Strip-shaped holes 4 communicating with the inside of the sleeve 3 are respectively formed on the opposite sides of the two sleeves 3. The strip-shaped holes 4 are vertically arranged. Adjusting rods 6 are respectively fixed on the opposite sides of the two sliding rods 5. After the sliding rods 5 penetrate into the sleeves 3, the adjusting rods 6 penetrate out from the strip-shaped holes 4. After the two adjusting rods 6 respectively penetrate out, a connecting member is connected between the penetrating ends. The connecting member is a connecting sleeve 7. Internal threads are provided on the inner wall of the connecting sleeve 7. Among them, the internal thread directions at both ends of the connecting sleeve 7 are opposite. External threads matching the internal threads at both ends of the connecting sleeve 7 are provided on the outer walls of the penetrating ends of the two adjusting rods 6. During use, by rotating the connecting sleeve 7, the two adjusting rods 6 can move towards the middle or towards both sides simultaneously, and then drive the two sliding rods 5 and the guiding plates 2 fixed to the sliding rods 5 to move inwards or outwards synchronously, achieving the purpose of adjusting the distance between the guiding plates 2.

[0031] Further, a lifting component for driving the two guiding plates 2 to lift synchronously is arranged on the two guiding plates 2. By the synchronous lifting of the two guiding plates 2, the purpose of adjusting the height of the guiding plates 2 can be achieved, and then cardboard 17 with different thicknesses can be adapted. Specifically, as shown in Figure 4 the figure, the lifting component includes a rotating ring 8 rotatably connected to the middle of the connecting sleeve 7. A vertically arranged adjusting cylinder 9 is fixed on the rotating ring 8. A lead screw 10 is arranged in the adjusting cylinder 9 in a mating manner. A motor 13 is installed on the frame 1. Among them, the upper end of the lead screw 10 passes through the frame 1 and is connected to the output shaft of the motor 13. During use, the motor 13 drives the lead screw 10 to rotate. The lead screw 10 drives the adjusting cylinder 9 to move up and down. The adjusting cylinder 9 is connected to the connecting sleeve 7 through the rotating ring 8, and then drives the connecting sleeve 7 to move up and down. The connecting sleeve 7 is also connected to the adjusting rod 6, and the adjusting rod 6 is connected to the sliding rod 5. Therefore, the connecting sleeve 7 can drive the adjusting rod 6 to slide vertically in the strip-shaped hole 4, driving the sliding rod 5 to move vertically in the sleeve 3, achieving the purpose of adjusting the height of the guiding plates 2. Among them, when adjusting the height of the guiding plates 2, the distance between the horizontal plate of the guiding plates 2 and the printing table 14 is slightly greater than the thickness of a single piece of cardboard 17.

[0032] Specific implementation process:

[0033] Before printing, first adjust the distance and height of the two guiding plates 2 to adapt to the width and thickness of the cardboard 17, and then adjust the position of the printing head 16.

[0034] When adjusting the position of the printing head 16, any point on the folding line of one of the two guide plates 2 is taken as the origin, and the printing head 16 is adjusted horizontally, longitudinally and vertically by using the horizontal driving assembly, the longitudinal driving assembly and the vertical driving assembly respectively. After being adjusted to an appropriate position, the printing head 16 is kept relatively fixed with respect to the guide plate 2, and then printing can start.

[0035] During printing, the cardboard 17 is conveyed forward by the conveying device 15. When it reaches a position close to the printing table 14, the guiding portion of the guide plate 2 can guide the cardboard 17 to correct the offset cardboard 17 and convey it between the two guide plates 2. At this time, the cardboard 17 and the two guide plates 2 are kept in a relative position. Since the printing head 16 and the guide plate 2 are kept relatively fixed, the printing head 16 and the cardboard 17 are kept in a relative position, and then printing starts. At this time, the printed pattern or text is kept in an appropriate position on the cardboard 17, ensuring the printing quality.

[0036] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A cardboard printing head adjustment device, comprising a lateral drive assembly for adjusting the lateral displacement of the printing head, a longitudinal drive assembly for adjusting the longitudinal displacement of the printing head, and a vertical drive assembly for adjusting the height of the printing head, characterized in that: It also includes guide plates symmetrically arranged on both sides of the printing head and adapted to the paperboard, the guide plate has a guide portion bent outwardly extending on the side close to the paperboard, the paperboard is transmitted to between the two guide plates along the guide portion, the guide plate is L-shaped, and the transverse drive component, the longitudinal drive component and the vertical drive component respectively adjust the printing head transversely, longitudinally and vertically with any point on the folding line of one of the guide plates as the origin.

2. The cardboard printing head adjustment device according to claim 1, characterized in that: The two guide plates are provided with adjustment components for adjusting the two guide plates to move synchronously inward or outward.

3. The cardboard printing head adjustment device according to claim 2, characterized in that: The adjustment assembly includes sliding rods fixed on two guide plates respectively, the sliding rods are arranged vertically, and a sleeve is arranged outside the sliding rod. The upper end of the sleeve is slidably connected to the frame, and strip holes connected to the inside of the sleeve are respectively opened on opposite sides of the two sleeves. Adjustment rods are fixed on opposite sides of the two sliding rods respectively. After the two adjustment rods pass through the corresponding strip holes, an adjustment piece is connected between the passing ends of the two adjustment rods. The rotation of the adjustment piece can drive the two adjustment rods to move inward or outward synchronously.

4. The cardboard printing head adjustment device according to claim 3, characterized in that: The two guide plates are provided with lifting components for driving the two guide plates to rise and fall synchronously.

5. The cardboard printing head adjustment device according to claim 4, characterized in that: The lifting assembly comprises a rotating ring rotatably connected to the middle of the connecting sleeve, a vertically arranged adjusting cylinder is fixed on the rotating ring, a screw rod is matchedly arranged in the adjusting cylinder, and the upper end of the screw rod is rotatably connected to the frame.

6. The cardboard printing head adjustment device according to claim 4, characterized in that: A T-shaped sliding block is fixed to the upper end of the sleeve, and a sliding groove matching the T-shaped sliding block is provided on the lower side of the frame.

7. The cardboard printing head adjustment device according to claim 4, characterized in that: The adjusting member comprises a connecting sleeve, and two adjusting rods are respectively threadedly connected to two ends of the connecting sleeve, and the thread directions of the two ends of the connecting sleeve are opposite.

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