Cylindrical surface printing equipment

Abstract

The present invention belongs to the technical field of inkjet printing, and provides a cylindrical surface printing device, which includes a supporting surface, a printing component, a first driving component and a clamping mechanism. The supporting surface is used to support a cylindrical object; the first driving component is used to drive the printing component to move along a first direction. The clamping mechanism is used to clamp the cylindrical object, and the clamping mechanism moves synchronously with the printing component along the first direction so that the cylindrical object rolls on the supporting surface along the first direction; the nozzle in the printing component prints the surface of the cylindrical object during the rolling process with the cylindrical object. In the present invention, the nozzle in the printing component prints the surface of the cylindrical object during the rolling process with the cylindrical object, thereby realizing that the printing device prints on the cylindrical surface.

Description

Technical Field

[0001] The invention belongs to the technical field of inkjet printing, in particular to a cylindrical surface printing device. Background Art

[0002] The cylindrical one is a common printing medium in production and life. In the prior art, screen printing is usually used to print patterns or words on the cylindrical one. Screen printing refers to using a silk screen as a base and making a silk screen printing plate with images and texts through a photosensitive platemaking method. Silk screen printing consists of five major elements: a silk screen printing plate, a scraper, ink, a printing table, and a substrate. Printing is performed based on the basic principle that the mesh holes of the graphic part of the silk screen printing plate can pass the ink, while the mesh holes of the non-graphic part cannot pass the ink. When printing, pour ink at one end of the silk screen printing plate, use a scraper to apply a certain pressure to the ink part on the silk screen printing plate, and move at a constant speed toward the other end of the silk screen printing plate. During the movement, the ink is squeezed from the mesh holes of the graphic part to the substrate by the scraper. Summary of the invention

[0003] In view of this, an embodiment of the present application provides a cylindrical surface printing device, which can realize printing on a cylindrical surface.

[0004] An embodiment of the present invention provides a cylindrical surface printing device, comprising:

[0005] A support surface for supporting a cylindrical object;

[0006] A printing assembly, the printing assembly comprising a nozzle;

[0007] A first driving assembly, used for driving the printing assembly to move along a first direction, wherein the first direction is perpendicular to the axial direction of the cylindrical object;

[0008] a clamping mechanism, used for clamping the cylindrical object, wherein the clamping mechanism moves synchronously with the printing assembly along the first direction so that the cylindrical object rolls on the supporting surface along the first direction;

[0009] Wherein, the nozzle prints on the surface of the cylindrical object while rolling synchronously with the cylindrical object.

[0010] Furthermore, the clamping mechanism is connected to the printing assembly.

[0011] Furthermore, the printing assembly is provided with a first driving component, and the first driving component drives the clamping mechanism to move along the second direction.

[0012] Furthermore, the cylindrical surface printing device also includes:

[0013] The second driving assembly is used to drive the clamping mechanism to move synchronously with the printing assembly along the first direction.

[0014] Further, the clamping mechanism includes a first adjusting member and at least one first roller assembly, the first roller assembly is arranged on the first adjusting member, and the first roller assembly can move along a first direction on the first adjusting member, the first roller assembly includes a first roller, and the first roller of the first roller assembly contacts the cylindrical object to clamp the cylindrical object.

[0015] Furthermore, the clamping mechanism further comprises a driving plate, the first adjusting member is arranged on the driving plate, and the first adjusting member can move along a third direction on the driving plate.

[0016] Further, the clamping mechanism includes a second adjustment plate and at least one second roller assembly, the second roller assembly is arranged on the second adjustment plate, and the second roller assembly can move along a second direction on the second adjustment plate, the second roller assembly includes a second roller, and the second roller of the second roller assembly contacts the cylindrical object to clamp the cylindrical object.

[0017] Furthermore, the second roller assembly also includes a second fixing assembly, which includes a mounting plate, a second fixing screw and a second nut. The first plate and the second plate of the mounting plate are fixedly connected to the second adjustment plate and the second roller, respectively. The second fixing screw is adjustable in distance and inserted into the second plate and extends along a direction perpendicular to the first direction away from the free end of the first plate and is fixed to the second roller. The second nut is screwed onto the second fixing screw and abuts against one side of the second plate to fix the second fixing screw on the second adjustment plate.

[0018] Furthermore, the cylindrical surface printing device also includes a frame and a beam, the printing component is arranged on the beam, and the first driving component drives the beam to move along the first direction on the frame.

[0019] Furthermore, it is characterized in that the cylindrical surface printing device also includes a guide plate, which is arranged on the supporting surface and is used to guide the cylindrical object.

[0020] In summary, the beneficial effects of the present invention are as follows:

[0021] In the cylindrical surface printing device provided by an embodiment of the present invention, the first driving component drives the printing component to move along the first direction, the holding mechanism clamps the cylindrical object, and the clamping mechanism moves synchronously with the printing component along the first direction, so that the cylindrical object rolls on the supporting surface along the first direction; at the same time, the nozzle in the printing component prints the surface of the cylindrical object during the rolling process with the cylindrical object, thereby realizing the printing device to print on the cylindrical surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0023] Figure 1 It is a structural front view in one direction of the first embodiment of the cylindrical surface printing device of the present invention;

[0024] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0025] Figure 3 It is a structural front view of another direction of the first embodiment of the cylindrical surface printing device of the present invention;

[0026] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0027] Figure 5 is corresponding to Figure 1 Right view of;

[0028] Figure 6 It is a structural front view in one direction of the second embodiment of the cylindrical surface printing device of the present invention;

[0029] Figure 7 yes Figure 6 A partial enlarged view of point C in the middle;

[0030] Figure 8 It is a structural front view of another direction of the second embodiment of the cylindrical surface printing device of the present invention;

[0031] Fig. 9 is corresponding to Figure 8 Top view of the .

[0032] Description of reference numerals:

[0033] 100 / 200, cylindrical surface printing device; 110 / 210, frame; 111 / 211, bracket; 112 / 212, support; 113, first guide rail; 120 / 220, supporting base plate; 130, first motor; 140, first screw rod; 150 / 250, crossbeam; 160, first clamping mechanism; 161, first driving component; 162, driving plate; 162A, mounting groove; 163, first adjusting member; 163A, first fixing groove; 164, first roller assembly; 164A, first roller; 164B, first fixing assembly; 164B1, first fixing screw rod; 164B2, first nut; 170, guide rod; 180 / 270, guide plate;

[0034] 213, support beam; 230, second motor; 240, second screw rod; 260, second clamping mechanism; 261, second driving component; 262, second adjustment plate; 262A, second fixing groove; 263, second roller assembly; 263A, second roller; 263B, second fixing assembly; 263B1, mounting plate; 263B1A, first plate; 263B1B, second plate; 263B2, second fixing screw rod; 263B3, second nut;

[0035] 300, cylindrical object; 400, printing component;

[0036] Arrow Z is the second direction, which is vertically upward; arrow X is the third direction, which is parallel to the axis of the cylindrical object; arrow Y is the first direction, which is the movement direction of the cylindrical object. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of further restrictions, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the various features in the embodiments and examples of the present invention can be combined with each other, all within the scope of protection of the present invention.

[0038] First of all, it should be pointed out that the cylindrical surface described in this specification includes two situations. The first is that the cylindrical surface is the circumferential surface of a cylinder, such as the circumferential surface of an oil tank or a chemical barrel; the second is that the cylindrical surface is a surface that is coated on the circumferential surface of a cylinder and becomes cylindrical. At the same time, the above-mentioned cylinder refers to a cylinder with a circumferential surface, that is, the outer circumferential surface of the cylinder has a circumferential surface so that it is abutted and rolled by a roller that is in friction contact with the circumferential surface, and the shapes of the other outer circumferential surfaces and the free end surfaces at both ends of the cylinder can be set according to actual needs. Of course, the above-mentioned cylinder especially refers to the overall outer circumferential surface with a larger diameter and the two free end surfaces are planes, and the overall circumferential surface with a larger diameter is a circumferential surface with a diameter of 300mm to 600mm; of course, the printing device in this embodiment can also print cylinders of any diameter. The cylindrical surface printing device of the present invention uses a clamping mechanism to clamp the cylindrical surface and drive it to roll, so that the surface of the cylindrical object is printed by the nozzle in the printing component during the rolling process. The following is a detailed description using two embodiments of a cylindrical surface printing device as an example.

[0039] Embodiment 1

[0040] See also Figures 1 to 5 The cylindrical surface printing device 100 of the first embodiment includes a frame 110, a support base plate 120, a crossbeam 150, a first driving assembly, a printing assembly 400 and a first clamping mechanism 160, wherein the frame 110 includes a pair of parallel brackets 111 and two pairs of supports 112 respectively supporting each bracket 111, the bottom of each support 112 is supported by a horizontal plane, and each bracket 111 is provided with a first guide rail 113. The support base plate 120 is located between the pair of supports 112 and is used to support the upper surface of the cylindrical object 300 as a support surface, and in other embodiments, the support surface can also be the ground. In this embodiment, the first driving component includes a first motor 130 and a first screw rod 140, and each bracket 111 is provided with a first motor 130 and a first screw rod 140 for driving cooperation. Both ends of the beam 150 are respectively connected to a first screw rod 140 so as to be driven by the first motor 130 to move along the first guide rail 113. That is to say, both ends of the beam 150 are respectively supported by a bracket 111 and are driven to move along the first guide rail 113 by the first screw rod 140 driven by the first motor 130. The printing component 400 including a nozzle (not shown) is arranged on the beam 150, so that the movement of the printing component 400 is synchronized with the rolling of the cylindrical object 300 as the beam 150 moves. In this way, the printing component 400 can perform a printing operation at a precise desired position on the outer circumference of the cylindrical object 300 with a larger diameter. The first clamping mechanism 160 includes a first driving component 161, a driving plate 162, a first adjusting member 163 and at least one first roller assembly 164 having a first roller 164A, which are connected in sequence in a second direction Z perpendicular to the central axis of the cylindrical object 300. The first driving component 161 is a cylinder, and the two ends of the first driving component 161 are respectively connected to the crossbeam 150 and the driving plate 162. The driving plate 162 is fixedly connected to the driving end of the first driving component 161 and is driven to move along the second direction Z to realize the lifting and lowering movement of each roller relative to the supporting base plate 120, so that it can be ensured that each roller can adapt to cylindrical objects 300 of different diameters, so that each first roller 164A is in frictional contact with the circumferential surface of the cylindrical object 300 to abut and drive the cylindrical object 300 to roll on the supporting base plate 120.

[0041] The cylindrical surface printing device 100 of this embodiment uses each roller to apply friction force on the top of the cylindrical object 300 to drive the cylindrical object 300 to roll. The friction force applied by each roller is uniform and easy to control, thereby ensuring the accuracy of the rotation angle of the cylindrical object 300, thereby ensuring that the printing operation on the outer surface of the cylindrical object 300 as it rotates has high accuracy and can obtain good printing effects.

[0042] See also Figure 2 In one embodiment, the driving plate 162 extends along a third direction X parallel to the central axis of the cylindrical object 300 and is provided with a mounting groove 162A parallel to the third direction X. The first adjusting member 163 is adjustably fixedly connected to the driving plate 162 along the mounting groove 162A. In this way, the first adjusting member 163 can adjust its position according to the axial length of the cylindrical object 300 in the third direction X, ensuring that each roller is suitable for various cylindrical objects 300 with different axial lengths. There are many ways to fix the first adjusting member 163 to the drive plate 162 in the mounting groove 162A. For example, one way is to set the mounting groove 162A on the side of the drive plate 162 and set one or more through holes on the surface of the first adjusting member 163 adjacent to it, and set angle codes between the mounting groove 162A and each through hole, and fastening bolts and fastening nuts for fixing the angle codes to the mounting groove 162A and the through hole respectively. In this way, when the first adjusting member 163 is fixed according to the axial direction of the cylindrical object 300, After the length moves to the appropriate position of the mounting groove 162A, a fastening bolt is passed through the angle code and the first adjusting member 163 in sequence and tightened with a fastening nut, and the first connecting end face of the angle code is fixedly connected to the first adjusting member 163. Another fastening bolt is passed through the angle code and screwed into the mounting groove 162A and tightened with another fastening nut, and the second connecting end face of the angle code is fixedly connected to the mounting groove 162A, so that the first adjusting member 163 can be adjusted to the position where the mounting groove 162A is fixed to the drive plate 162.

[0043] See also Figures 2 to 4 In one embodiment, the first adjusting member 163 extends along a first direction Y perpendicular to the central axis, and the first roller assembly 164 further includes a first fixing assembly 164B, the first fixing assembly 164B includes a first fixing screw 164B1 and a first nut 164B2, the first fixing screw 164B1 is inserted into the first adjusting member 163 at an adjustable distance and the free end facing the support base plate 120 is fixed to the first roller 164A, and the first fixing screw 164B1 can be directly fixed to the rotation axis of the first roller 164A at the free end. It can be fixed to the roller seat that rotatably supports the first roller 164A, and the first nut 164B2 is screwed onto the first fixed screw 164B1 and abuts against one side of the first adjusting member 163 to fix the first fixed screw 164B1 on the first adjusting member 163. Therefore, the distance that the free end of the first fixed screw 164B1 extends to the supporting base plate 120 can be determined. In this way, each roller can be raised and lowered in the first direction Y according to the diameter of the cylindrical object 300 to ensure that each roller is in frictional contact with the circumferential surface reliably and with appropriate force.

[0044] See also Figure 4In one embodiment, the first adjusting member 163 is further provided with a first fixing groove 163A extending along the first direction Y, and the first fixing screw 164B1 is slidably fixed along the first fixing groove 163A. In this way, each first roller 164A can be specifically adjusted in the first direction Y relative to the circumferential surface of the cylindrical object 300, further ensuring good frictional contact between each first roller 164A and the circumferential surface with different diameter values, thereby ensuring the smooth rolling of the cylindrical object 300 and the accuracy of the rotation angle.

[0045] See also Figure 1 In one embodiment, the cylindrical surface printing device 100 also includes a guide rod 170, which is telescopically disposed between the cross beam 150 and the drive plate 162. The guide rod 170 can adopt a piston structure to guide the lifting movement of the first driving component 161 and increase the supporting force of the drive plate 162, the first adjusting member 163 and the first roller assembly 164.

[0046] See also Figure 5 In one embodiment, the first clamping mechanism 160 and the guide rod 170 are provided in two corresponding pairs and are respectively located at the two ends of the cylindrical object 300 along the third direction X. Therefore, the two ends of the cylindrical object 300 obtain uniform roller friction force to achieve stable rotation. This situation of providing two pairs is particularly suitable when the axial length of the cylindrical object 300 along its central axis is large. In addition, when the axial length of the cylindrical object 300 is small, the first clamping mechanism 160 and the guide rod 170 are provided in a pair and are provided corresponding to the central position of the central axis of the cylindrical object 300. In this way, the cylindrical object 300 can be driven to roll well.

[0047] See also Figure 5 In one embodiment, the first roller assembly 164 is provided with one and the first roller 164A thereof is horizontally tangent to the circumferential surface. This arrangement is particularly suitable for the case where the cylindrical object 300 is light in weight or / and has a relatively small diameter, which helps to reduce costs; or the first roller assembly 164 is provided with three and one of the three first rollers 164A thereof is horizontally tangent to the circumferential surface, and the other two first rollers 164A are symmetrically arranged relative to one of the first rollers 164A. In this embodiment, each first roller assembly 164 of the cylindrical surface printing device 100 is provided with three. This arrangement is particularly suitable for the case where the cylindrical object 300 is heavy in weight or / and has a relatively large diameter, which helps to increase the friction driving force and improve the control of the rotation angle.

[0048] See also Figure 1In one embodiment, the cylindrical surface printing device 100 further includes a guide plate 180 disposed on the supporting base plate 120, the guide plate 180 is in sliding contact with a free end face of the cylindrical object 300 and the extension direction is parallel to the second direction Z. It is known that the free end faces of the cylindrical object 300 are located at both ends of the central axis direction and are generally planes perpendicular to the central axis. Therefore, by providing the guide plate 180, the guide plate 180 can guide the rolling direction of the cylindrical object 300, so that the cylindrical object 300 keeps rolling along the surface where its free end face contacts the guide plate 180, ensuring that the rolling direction does not deviate and thus ensuring a good effect of the corresponding peripheral surface operation.

[0049] Embodiment 2

[0050] See also Figures 6 to 9, for the cylindrical surface printing device 200 of the second embodiment, the same or similar structure as the cylindrical surface printing device 100 in the first embodiment is not described here and the same reference numerals are used. Please refer to the above, and the following focuses on the differences. The cylindrical surface printing device 200 of this embodiment includes a frame 210, a support base plate 220, a crossbeam 150, a second drive assembly, a first drive assembly, a printing assembly 400 and a second clamping mechanism 260, wherein the frame 210 includes a pair of parallel brackets 211, two pairs of supports 212 respectively supporting each pair of brackets 211, and a support beam 213 with a second guide rail (not shown) arranged between each pair of supports 212; the support base plate 220 is located between the pair of supports 212 and is used to support a cylindrical object 300, and the two free end surfaces of the cylindrical object 300 face a support beam 213 respectively. A second motor 130 and a second screw rod 140 are provided for driving cooperation on each bracket 211. In this embodiment, the first driving assembly includes a first motor 230 and a first screw rod 240, and a first motor 230 and a first screw rod 240 are provided for driving cooperation on each support beam 213. Both ends of the crossbeam 150 are respectively connected to a second screw rod 140 to be driven by the second motor 130 to move along the first guide rail 113. A printing assembly 400 including a nozzle (not shown) is provided on the crossbeam 150, so that the movement of the printing assembly 400 is synchronized with the rolling of the cylindrical object 300 as the crossbeam 150 moves. A pair of second clamping mechanisms 260 is uniformly provided on each support beam 213, and the gap between each pair of second clamping mechanisms 260 clamps a part of the cylindrical object 300 therebetween. Each second clamping mechanism 260 includes a second driving component 261, such as a cylinder, a second adjustment plate 262 and at least one second roller assembly 263 having a second roller 263A, which are connected in sequence. The second driving component 261 is movably connected to the first screw rod 240 to move along the second guide rail, and the second adjustment plate 262 is fixedly connected to the driving end of the second driving component 261 and is driven to move along a third direction X parallel to the central axis of the cylindrical object 300, such as a telescopic movement, so that each second roller 263A is in frictional contact with the circumferential surface of the cylindrical object 300, and each pair of second clamping mechanisms 260 works together to abut and drive the cylindrical object 300 to roll on the support base plate 220.

[0051] The cylindrical surface printing device 200 of this embodiment utilizes the corresponding second rollers 263A of a plurality of second clamping mechanisms 260 to apply friction force to the front and rear parts of the cylindrical object 300 to drive the cylindrical object 300 to roll. Since the second driving components 261 of each pair of second clamping mechanisms 260 move with the corresponding second lead screw 240, they have high movement synchronization, ensuring precise control of the clamping and rotation of the cylindrical object 300, thereby ensuring that the peripheral surface operation obtains a good effect.

[0052] See also Figure 7 In one embodiment, the second adjustment plate 262 extends along a second direction Z perpendicular to the central axis of the cylindrical object 300, and the second roller assembly 263 further includes a second fixing assembly 263B, which includes a mounting plate 263B1, a second fixing screw 263B2 and a second nut 263B3. The first plate 263B1A and the second plate 263B1B of the mounting plate 263B1 are fixedly connected to the second adjustment plate 262 and the second roller 263A, respectively. That is, the second fixing screw 263B2 and the second nut 263B3 are set as two pairs relative to one mounting plate 263B1, and the second fixing screw 263B2 is interspersed with the second adjusting plate 262 and the second roller 263A with an adjustable distance. The free end in the second plate 263B1B and away from the first plate 263B1A is fixed to the second roller 263A, and the second nut 263B3 is screwed on the second fixed screw 263B2 and abuts against one side of the second plate 263B1B to fix the second fixed screw 263B2 on the second adjustment plate 262. Therefore, the distance that the free end of the second fixed screw 263B2 extends to the cylindrical object 300 in the first direction Y can be determined. In this way, each roller can move in a direction approaching or away from the cylindrical object 300 according to the diameter of the cylindrical object 300 to ensure that each roller is in reliable and appropriate frictional contact with the circumferential surface.

[0053] In one embodiment, the second adjustment plate 262 is further provided with a second fixing groove 262A extending in a second direction Z perpendicular to the central axis, and a second fixing screw 263B2 (not shown here) is inserted into the first plate 263B1A and the second fixing groove 262A and fixed by a second nut 263B3 (not shown here). Therefore, each roller can specifically adjust its position relative to the circumferential surface of the cylindrical object 300 in the second direction Z.

[0054] See also Figure 8 and 9In one embodiment, the second roller assembly 263 is provided in one piece and the second roller 263A thereof is vertically tangent to the circumferential surface. This arrangement is particularly suitable for the case where the cylindrical object 300 is light in weight and relatively small in diameter. Alternatively, the second roller assembly 263 is provided in three pieces and one of the three second rollers 263A thereof is vertically tangent to the circumferential surface, and the other two second rollers 263A are symmetrically arranged relative to one of the second rollers 263A. In this embodiment, each second roller assembly 263 of the cylindrical surface printing device 200 is provided in three pieces. This arrangement is particularly suitable for the case where the cylindrical object 300 is heavy in weight and / or relatively large in diameter.

[0055] See also Figure 6 In one embodiment, the cylindrical surface printing device 200 also includes a guide plate 270 disposed on the supporting base plate 220. The guide plate 270 can guide the rolling direction of the cylindrical object 300, thereby ensuring that the rolling direction does not deviate and thus ensuring a good effect of the corresponding peripheral surface operation.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cylindrical surface printing device, characterized in that: include: A support surface for supporting a cylindrical object; A printing assembly, the printing assembly comprising a nozzle; A first driving assembly, used for driving the printing assembly to move along a first direction, wherein the first direction is perpendicular to the axial direction of the cylindrical object along a horizontal plane; a clamping mechanism, the clamping mechanism being connected to the printing assembly and being used for clamping the cylindrical object, the clamping mechanism moving synchronously with the printing assembly along the first direction so that the cylindrical object rolls on the supporting surface along the first direction; the clamping mechanism comprising a first adjusting member and at least one first roller assembly, the first roller assembly being arranged on the first adjusting member and being movable on the first adjusting member along the first direction, the first roller assembly comprising a first roller, the first roller of the first roller assembly being in contact with the cylindrical object to clamp the cylindrical object; A second driving assembly, used for driving the clamping mechanism to move synchronously with the printing assembly along the first direction; The printing assembly is provided with a first driving component, and the first driving component drives the clamping mechanism to move along a second direction, and the second direction is perpendicular to the axial direction of the cylindrical object along the vertical plane; Wherein, the nozzle prints on the surface of the cylindrical object while moving synchronously with the cylindrical object.

2. The cylindrical surface printing device according to claim 1, characterized in that: The clamping mechanism further includes a driving plate, the first adjusting member is disposed on the driving plate, and the first adjusting member can move on the driving plate along a third direction, wherein the third direction is parallel to the axial direction of the cylindrical object.

3. A cylindrical surface printing device, characterized in that: include: A support surface for supporting a cylindrical object; A printing assembly, the printing assembly comprising a nozzle; A first driving assembly, used for driving the printing assembly to move along a first direction, wherein the first direction is perpendicular to the axial direction of the cylindrical object along a horizontal plane; a second clamping mechanism, the second clamping mechanism is connected to the printing assembly and is used to clamp the cylindrical object, the second clamping mechanism moves synchronously with the printing assembly along the first direction so that the cylindrical object rolls on the supporting surface along the first direction; the second clamping mechanism includes a second adjustment plate and at least one second roller assembly, the second roller assembly is arranged on the second adjustment plate, and the second roller assembly can move along the second direction on the second adjustment plate, the second roller assembly includes a second roller, and the second roller of the second roller assembly contacts the cylindrical object to clamp the cylindrical object; A second driving assembly, used for driving the second clamping mechanism to move synchronously with the printing assembly along the first direction; The printing assembly is provided with a first driving component, and the first driving component drives the second clamping mechanism to move along a second direction, and the second direction is perpendicular to the axial direction of the cylindrical object along the vertical plane; Wherein, the nozzle prints on the surface of the cylindrical object while moving synchronously with the cylindrical object.

4. The cylindrical surface printing device according to claim 3, characterized in that: The second roller assembly also includes a second fixing assembly, which includes a mounting plate, a second fixing screw and a second nut. The first plate and the second plate of the mounting plate are fixedly connected to the second adjustment plate and the second roller, respectively. The second fixing screw is adjustable in distance and inserted into the second plate and extends away from the free end of the first plate in a direction perpendicular to the first direction and is fixed to the second roller. The second nut is screwed onto the second fixing screw and abuts against one side of the second plate to fix the second fixing screw on the second adjustment plate.

5. The cylindrical surface printing device according to any one of claims 1 to 4, characterized in that: The cylindrical surface printing device further comprises a frame and a crossbeam, the printing assembly is arranged on the crossbeam, and the first driving assembly drives the crossbeam to move along a first direction on the frame.

6. The cylindrical surface printing device according to any one of claims 1 to 4, characterized in that: The cylindrical surface printing device further comprises a guide plate, which is arranged on the supporting surface and is used to guide the cylindrical object.

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