Spherical printing device

Abstract

The utility model belongs to the technical field of spherical printing, and discloses a spherical printing device. The spherical surface printing device comprises a printing plate, an ink conveying mechanism and a clamping mechanism, the printing plate is in a semi-cylindrical shape and extends in the first direction, the printing surface of the printing plate can be attached to the spherical surface of a product, the ink conveying mechanism is used for conveying ink to the printing surface of the printing plate, and the clamping mechanism comprises a clamping head, a first guiding piece, a first clamping driving assembly and a second clamping driving assembly. The clamping head is arranged on the first guiding piece in a sleeving mode and can rotate relative to the first guiding piece, the first clamping driving assembly is used for driving the first guiding piece to move in the second direction so that the clamping head can abut against a clamped product, and the second clamping driving assembly is used for driving the first clamping driving assembly to move in the first direction so that the clamping head can abut against the clamped product. Therefore, the product can roll on the printing surface of the printing plate. The device adopts the printing plate to print a product, so that the printing quality is good, the form of the printing plate is stable, the stability of the printing plate does not need to be controlled in the printing process, and the printing is stable and the printing efficiency is high.

Description

Technical Field

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

[0002] There are many spherical products in life, such as table tennis balls, billiard balls, etc. These products often need to be printed with patterns on the outer surface of the product to increase its aesthetics and recognition.

[0003] Some existing technologies use inkjet printing. Although this method has a simple process, the printing quality is poor. Others use pad printing to print spherical products, that is, transferring the flat printing information to the outer peripheral surface of the spherical product through a flexible transfer head. This method often results in unstable printing and low printing efficiency due to the unstable shape of the flexible transfer head. Others make a spherical printing plate with the same curvature as the spherical product and use the spherical printing plate for printing. However, the ink transfer method for the spherical printing plate is not easy to implement, and it is easy to have the problem of uneven distribution of ink on the printing plate. Therefore, this method will also lead to unstable printing, low printing efficiency and poor printing quality.

[0004] Therefore, a new spherical printing device is urgently needed to solve the problems of poor printing quality, unstable printing and low printing efficiency. Utility Model Content

[0005] The utility model aims to provide a spherical printing device, which has good printing quality, stable printing and high printing efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Spherical printing device, comprising:

[0008] A printing plate, the printing plate is semi-cylindrical and extends along a first direction, and the printing surface of the printing plate can fit the spherical surface of the product;

[0009] An ink transfer mechanism, used for transferring ink to the printing surface of the printing plate;

[0010] The clamping mechanism includes a clamping head, a first guide, a first clamping drive assembly and a second clamping drive assembly. The clamping head is mounted on the first guide and can rotate relative to the first guide. The first clamping drive assembly is used to drive the first guide to move along a second direction so that the clamping head abuts against and clamps the product. The second clamping drive assembly is used to drive the first clamping drive assembly to move along the first direction so that the product rolls on the printing surface of the printing plate.

[0011] As a preferred solution, the first clamping drive assembly includes:

[0012] A first guide sleeve extending along the second direction, wherein the first guide member is inserted into the first guide sleeve and can slide along the first guide sleeve;

[0013] a gas delivery device, which is in communication with the cavity in which the first guide sleeve is plugged with the first guide member;

[0014] The first elastic member is arranged in the cavity and connected to the first guide member. The relative position of one end of the first elastic member away from the first guide member and the first guide sleeve is fixed. The first elastic member can be extended and retracted along the second direction.

[0015] As a preferred solution, the first clamping drive assembly further includes:

[0016] an adjusting member, disposed in the cavity and connected to an end of the first elastic member away from the first guide member;

[0017] The first fixing member, the first guide sleeve is provided with a first adjusting hole extending along the second direction, the first fixing member is connected with the adjusting member through the first adjusting hole, and the relative position of the first fixing member and the first adjusting hole along the second direction is adjustable.

[0018] As a preferred solution, the ink transfer mechanism includes:

[0019] A first support member extending along the first direction and located above the printing plate;

[0020] An adjusting component connected to the first supporting member, wherein an extending direction of the adjusting component is perpendicular to the first direction;

[0021] An ink transfer roller connected to an end of the adjustment component away from the first support member and located above the printing plate;

[0022] A first ink transfer driving member, used for driving the first supporting member to rotate so as to make the ink transfer roller approach or move away from the printing plate;

[0023] The ink transfer driving assembly is used to drive the first supporting member to move in the up-down direction so that the outer peripheral surface of the ink transfer roller is always in contact with the printing surface of the printing plate.

[0024] As a preferred solution, the adjustment component includes:

[0025] A second guide member connected to the first support member, wherein an extending direction of the second guide member is perpendicular to the first direction;

[0026] a second guide sleeve connected to the ink transfer roller, the second guide member being inserted into the second guide sleeve and being able to slide along the second guide sleeve, the second guide sleeve being provided with a second adjustment hole, and the extension direction of the second adjustment hole being the same as the extension direction of the second guide member;

[0027] The second fixing member passes through the second adjusting hole and is connected to the second guiding member. The relative positions of the second fixing member and the second adjusting hole along the extending direction of the second adjusting hole are adjustable.

[0028] As a preferred solution, the ink transfer drive assembly includes:

[0029] a second supporting member connected to the first supporting member;

[0030] A second elastic member extending in the up-down direction and used to support the second supporting member, wherein the lower end of the second elastic member is fixed in the up-down direction;

[0031] The second ink transfer driving member is used to press the second supporting member downwards.

[0032] As a preferred solution, the ink transfer drive assembly further includes:

[0033] The third guide sleeve extends in the up-down direction, the second support member includes a first guide portion, the second elastic member includes a second guide portion, the second guide portion is used to support the first guide portion, and the first guide portion and the second elastic member are slidably arranged in the third guide sleeve.

[0034] As a preferred solution, the ink transfer drive assembly further includes:

[0035] The third fixing member, the second elastic member also includes a main body and a third guide portion, the second guide portion, the main body and the third guide portion are sequentially connected from top to bottom, the third guide sleeve is provided with a third adjustment hole extending in the up-down direction, the third fixing member is connected to the third guide portion through the third adjustment hole, and the relative position of the third fixing member and the third adjustment hole in the up-down direction is adjustable.

[0036] As a preferred solution, the spherical printing device further comprises:

[0037] The feeding mechanism is located upstream of the printing plate along the first direction. The feeding mechanism includes two feeding guides. A feeding channel is formed between the two feeding guides. The product moves along the feeding channel to the printing plate.

[0038] As a preferred solution, the spherical printing device further comprises:

[0039] The position detection mechanism is used to detect the position of the ink transfer mechanism.

[0040] Beneficial effects:

[0041] The utility model provides a spherical printing device, which includes a printing plate, an ink transfer mechanism and a clamping mechanism. The printing plate is semi-cylindrical and the printing surface of the printing plate can fit the spherical surface of the product. The ink transfer mechanism can transfer ink to the printing surface of the printing plate so that the ink is attached to the graphic information on the printing surface. The clamping mechanism includes a clamping head, a first guide, a first clamping drive assembly and a second clamping drive assembly. The clamping head is sleeved on the first guide and can rotate relative to the first guide. The first clamping drive assembly can drive the first guide to move, thereby driving the clamping head to abut against the clamped product. Then, under the drive of the second clamping drive assembly, the clamping head rotates while driving the product to roll on the printing surface, thereby printing the information on the printing surface onto the spherical surface of the product. The device uses the printing plate to print the product, so the printing quality is good, and the semi-cylindrical printing plate is easy to transfer ink, and the ink is evenly distributed on the printing plate, so the printing is stable, the printing efficiency is high and the printing quality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of a spherical printing device provided by an embodiment of the utility model;

[0043] Figure 2 This is a partial structural diagram of the clamping mechanism provided by the embodiment of the utility model. Figure 1 ;

[0044] Figure 3 This is a partial structural diagram of the clamping mechanism provided by the embodiment of the utility model. Figure 2 ;

[0045] Figure 4 It is a structural schematic diagram of the ink transfer mechanism provided by an embodiment of the utility model;

[0046] Figure 5 It is a partial structural schematic diagram of the ink transfer mechanism provided by the embodiment of the utility model;

[0047] Figure 6 It is a structural schematic diagram of a third guide sleeve provided in an embodiment of the utility model;

[0048] Figure 7 yes Figure 4 Enlarged view of point A in the middle.

[0049] In the figure:

[0050] 100. Products;

[0051] 10. Printing plates;

[0052] 20. ink transfer mechanism; 21. first support member; 22. adjustment assembly; 221. second guide member; 222. second guide sleeve; 2221. second adjustment hole; 223. second fixing member; 23. ink transfer roller; 24. ink transfer drive assembly; 241. second support member; 2411. first guide portion; 242. second elastic member; 2421. second guide portion; 2422. main body; 2423. third guide portion; 243. third guide sleeve; 2431. third adjustment hole; 244. third fixing member;

[0053] 30. Clamping mechanism; 31. Clamping head; 32. First guide member; 33. First clamping drive assembly; 331. First guide sleeve; 3311. Cavity; 3312. First adjustment hole; 332. First elastic member; 333. Adjustment member; 334. First fixing member; 34. Second clamping drive assembly; 341. Guide rail; 342. Slider;

[0054] 40. Feed mechanism; 41. Feed guide; 42. Feed channel; 43. Feed mounting member; 431. Fourth adjustment hole; 44. Fourth fixing member;

[0055] 50. discharging mechanism; 51. discharging guide; 52. discharging channel; 53. discharging mounting member; 531. fifth adjusting hole; 54. fifth fixing member;

[0056] 60. Position detection mechanism. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0058] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0061] like Figure 1 and Figure 2 As shown, this embodiment provides a spherical printing device, which includes a printing plate 10, an ink transfer mechanism 20 and a clamping mechanism 30. The printing plate 10 is semi-cylindrical and extends along a first direction. The printing surface of the printing plate 10 can fit the spherical surface of the product 100. The ink transfer mechanism 20 is used to transfer ink to the printing surface of the printing plate 10 so that ink is attached to the graphic information on the printing surface. The clamping mechanism 30 includes a clamping head 31, a first guide member 32, a first clamping drive assembly 33 and a second clamping drive assembly 34. The clamping head 31 is sleeved on the first guide member 32 and can rotate relative to the first guide member 32. The first clamping drive assembly 33 is used to drive the first guide member 32 to move along the second direction so that the clamping head 31 abuts against and clamps the product 100. The second clamping drive assembly 34 is used to drive the first clamping drive assembly 33 to move along the first direction, so that the clamping head 31 rotates while driving the product 100 to roll on the printing surface, thereby printing the information on the printing surface onto the spherical surface of the product 100. The device uses a printing plate 10 to print a product 100, so the printing quality is good, and the semi-cylindrical printing plate 10 is easy to transfer ink, and the ink is evenly distributed on the printing plate 10, so the printing is stable, the printing efficiency is high, and the printing quality is good.

[0062] It should be noted that, in this embodiment, if it is necessary to print products 100 of different sizes, it is only necessary to replace the corresponding printing plate 10, so the device has good versatility and is simple and convenient to operate.

[0063] like Figure 1 to Figure 3As shown, the first clamping drive assembly 33 includes a first guide sleeve 331, a gas conveying device and a first elastic member 332. The first guide sleeve 331 extends along the second direction. The first guide member 32 is inserted in the first guide sleeve 331 and can slide along the first guide sleeve 331. The gas conveying device is connected to the first guide sleeve 331 and the cavity 3311 in which the first guide member 32 is inserted. The first elastic member 332 is arranged in the cavity 3311 and is connected to the first guide member 32. The end of the first elastic member 332 away from the first guide member 32 is fixed in a relative position with the first guide sleeve 331, and the first elastic member 332 can be extended and retracted along the second direction. When it is necessary to clamp the product 100, the gas conveying device introduces gas into the cavity 3311, and the gas blows the first guide member 32 out along the second direction until the clamping head 31 abuts against the product 100. At this time, the first guide member 32 pulls the first elastic member 332 to extend. When it is not necessary to clamp the product 100, the gas conveying device stops introducing gas into the cavity 3311, and the gas no longer has a driving force on the first guide member 32. At this time, the first elastic member 332 contracts, thereby pulling the first guide member 32 back to its initial position. This driving method can not only ensure that the product 100 is clamped, but also because the existence of the first elastic member 332 can play a buffering role during clamping, thereby avoiding clamping of the product 100, and the first elastic member 332 can also reset the first guide member 32 and the clamping head 31.

[0064] It should be noted that, in the present embodiment, the first elastic member 332 is a spring, which has a simple structure and low cost. In other embodiments, the first elastic member 332 may also be a structure such as rubber which has a simple structure and low cost. All other structures with elastic reset function are within the protection scope of the present embodiment. In addition, the gas delivery device is an air pump, which has low cost and stable ventilation. In other embodiments, the gas delivery device may also be a structure such as an air compressor, which is not limited in the present embodiment. In the present embodiment, the first direction is perpendicular to the second direction, so that the rotation clamping effect of the clamping mechanism 30 is the best. In other embodiments, the second direction may also be set at an angle with the first direction, as long as it can ensure that the clamping can clamp the product 100 and the clamping head 31 can rotate relative to the first guide member 32.

[0065] like Figure 1 to Figure 3As shown, the first clamping drive assembly 33 also includes an adjusting member 333 and a first fixing member 334. The adjusting member 333 is arranged in the cavity 3311 and is connected to one end of the first elastic member 332 away from the first guide member 32. The first guide sleeve 331 is provided with a first adjusting hole 3312 extending along the second direction. The first fixing member 334 passes through the first adjusting hole 3312 and is connected to the adjusting member 333. The relative position of the first fixing member 334 and the first adjusting hole 3312 along the second direction is adjustable, so that the position of the adjusting member 333 in the cavity 3311 can be changed along the second direction, thereby changing the initial setting position of the first elastic member 332, and then changing the sliding distance of the first guide member 32 along the second direction, thereby ensuring that the clamping head 31 can clamp products 100 of different sizes, thereby improving the versatility of the device and ensuring the normal use of the device. In this embodiment, the first fixing member 334 is a screw, which has a simple structure and low cost. In other embodiments, the first fixing member 334 can also be a pin or a bolt, which has a simple structure and low cost. All other structures that can achieve the fixing function are within the protection scope of this embodiment. It should be noted that a through hole connected to the cavity 3311 is provided on the adjustment member 333, and the gas delivery device delivers gas from the through hole to the cavity 3311, thereby ensuring stable gas delivery.

[0066] like Figure 1 to Figure 3 As shown, the second clamping drive assembly 34 includes a driving member, a guide rail 341 and a slider 342. The guide rail 341 extends along the first direction. The slider 342 is slidably connected to the guide rail 341 and connected to the first guide sleeve 331. The driving member is used to drive the slider 342 to move along the first direction. When the clamping mechanism 30 finally drives the product 100 to move along the first direction, the guide rail 341 and the slider 342 play a guiding role to ensure that the movement direction of the product 100 is accurate, thereby ensuring the quality of printing. In this embodiment, the driving member can be a simple and low-cost structure such as a cylinder or an electric cylinder, which is not limited in this embodiment.

[0067] like Figure 1 and Figure 4 As shown, the ink transfer mechanism 20 includes a first support member 21, an adjusting component 22, an ink transfer roller 23, a first ink transfer drive member and an ink transfer drive component 24. The first support member 21 extends along a first direction and is located above the printing plate 10. The adjusting component 22 is connected to the first support member 21. The extending direction of the adjusting component 22 is perpendicular to the first direction. The ink transfer roller 23 is connected to an end of the adjusting component 22 away from the first support member 21 and is located above the printing plate 10. The first ink transfer drive member is used to drive the first support member 21 to rotate so that the ink transfer roller 23 approaches or moves away from the printing plate 10. The ink transfer drive component 24 is used to drive the first support member 21 to move in the up and down directions so that the outer peripheral surface of the ink transfer roller 23 is always in contact with the printing surface of the printing plate 10.

[0068] When it is necessary to transfer ink to the printing surface of the printing plate 10, the first ink transfer drive member is used to drive the first support member 21 to rotate, thereby driving the ink transfer roller 23 to move to the side of the printing plate 10, and then the first ink transfer drive member continues to drive the first support member 21 to rotate, while the ink transfer drive assembly 24 drives the first support member 21 to move downward until the ink transfer roller 23 contacts the printing surface. In this process, the first ink transfer drive member and the ink transfer drive assembly 24 cooperate with each other to ensure that the ink transfer roller 23 rotates while moving downward, thereby ensuring that the ink transfer roller 23 always contacts the printing surface until the ink transfer roller 23 moves to the other side of the printing plate 10, the ink transfer roller 23 completes the ink transfer, and the ink transfer drive assembly 24 drives the first support member 21 to move downward, so that the ink transfer roller 23 no longer contacts the printing surface. In this embodiment, the first ink transfer drive member can be a structure with simple structure and low cost such as a rotating motor, as long as it can achieve driving the first support member 21 to rotate, and this embodiment does not limit this.

[0069] In this embodiment, the ink transfer roller 23 is an anilox roller, and the anilox roller transfers ink stably. In other embodiments, the ink transfer roller 23 may also be a micro-concave roller or other structure with stable ink transfer, which is not limited in this embodiment.

[0070] like Figure 1 , Figure 4 and Figure 5 As shown, the ink transfer drive assembly 24 includes a second support member 241, a second elastic member 242 and a second ink transfer drive member. The second support member 241 is connected to the first support member 21. The second elastic member 242 extends in the up-down direction and is used to support the second support member 241. The lower end of the second elastic member 242 is fixed in the up-down direction. The second ink transfer drive member is used to press the second support member 241 downward. When the ink transfer roller 23 moves to the side of the printing plate 10, the second ink transfer drive member presses the second support member 241 downward, and the second support member 241 compresses the second elastic member 242 downward. When the ink transfer roller 23 moves to the other side of the printing plate 10, the second ink transfer drive member no longer presses the second support member 241 downward. At this time, the second elastic member 242 is no longer compressed, and the second elastic member 242 gradually stretches, thereby driving the second support member 241 to move upward. In this driving mode, the second elastic member 242 can play a buffering role for the movement of the second support member 241, thereby ensuring a more stable drive. In this embodiment, the second ink transfer driving member may be a simple and low-cost structure such as an electric cylinder or a pneumatic cylinder, as long as it can drive the first supporting member 21 to move downward, and this embodiment does not limit this.

[0071] It should be noted that, in the present embodiment, two ink transfer rollers 23 are provided on the first support member 21, and the two ink transfer rollers 23 are arranged at 180°. After the ink transfer rollers 23 complete the ink transfer to the printing surface, the first ink transfer driving member continues to drive the first support member 21 to rotate until the extension direction of the adjustment component 22 is horizontal, thereby ensuring that the two ink transfer rollers 23 will not interfere with the movement of the product 100 or the clamping mechanism 30.

[0072] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the ink transfer drive assembly 24 also includes a third guide sleeve 243, extending in the up and down directions, the second support member 241 includes a first guide portion 2411, the second elastic member 242 includes a second guide portion 2421, the second guide portion 2421 is used to support the first guide portion 2411, the first guide portion 2411 and the second elastic member 242 are slidably arranged in the third guide sleeve 243, and the third guide sleeve 243 cooperates with the first guide portion 2411 and the second guide portion 2421 to guide the movement of the second elastic member 242 and the second support member 241 in the up and down directions, thereby ensuring that the ink transfer roller 23 transfers ink more accurately.

[0073] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the ink transfer drive assembly 24 also includes a third fixing member 244, the second elastic member 242 also includes a main body 2422 and a third guide portion 2423, the second guide portion 2421, the main body 2422 and the third guide portion 2423 are connected in sequence from top to bottom, the third guide sleeve 243 is provided with a third adjustment hole 2431 extending in the up-down direction, the third fixing member 244 passes through the third adjustment hole 2431 and is connected to the third guide portion 2423, the relative position of the third fixing member 244 and the third adjustment hole 2431 in the up-down direction is adjustable, so that the position of the third guide portion 2423 in the up-down direction can be adjusted, thereby adjusting the initial setting position of the main body 2422, and then adjusting the positions of the second support member 241, the first support member 21 and the ink transfer roller 23 in the up-down direction, so that the ink transfer mechanism 20 can adapt to products 100 of different sizes and printing plates 10 of different sizes. In addition, the third guide portion 2423 is slidably disposed in the third guide sleeve 243, so that when adjusting the initial position of the main body 2422, the third guide portion 2423 cooperates with the third guide sleeve 243 to make the position adjustment more accurate. In this embodiment, the third fixing member 244 is a screw, which has a simple structure and low cost. In other embodiments, the third fixing member 244 can also be a pin or a bolt, etc., which has a simple structure and low cost. All other structures that can achieve the fixing function are within the protection scope of this embodiment.

[0074] like Figure 1 , Figure 4 and Figure 7 As shown, the adjustment component 22 includes a second guide member 221, a second guide sleeve 222 and a second fixing member 223. The second guide member 221 is connected to the first support member 21. The extension direction of the second guide member 221 is perpendicular to the first direction. The second guide sleeve 222 is connected to the ink transfer roller 23. The second guide member 221 is inserted into the second guide sleeve 222 and can slide along the second guide sleeve 222. The second guide sleeve 222 is provided with a second adjustment hole 2221. The extension direction of the second adjustment hole 2221 is the same as the extension direction of the second guide member 221. The second fixing member 223 passes through the second adjustment hole 2221 and is connected to the second guide member 221. The relative position of the second fixing member 223 and the second adjustment hole 2221 along the extension direction of the second adjustment hole 2221 is adjustable. Therefore, the distance between the ink transfer roller 23 and the first support member 21 can be adjusted by the adjustment component 22. Specifically, the second guide member 221 is slid in the second guide sleeve 222 until the second guide member 221 slides to the desired position. At this time, the second fixing member 223 is connected to the second guide member 221 through the second adjustment hole 2221, so as to adjust the relative position of the second guide member 221 and the second guide sleeve 222, and then adjust the distance between the ink transfer roller 23 and the first support member 21, so as to ensure that the ink transfer mechanism 20 can adapt to products 100 of different sizes and printing plates 10 of different sizes. In this embodiment, the second fixing member 223 is a screw, which has a simple structure and low cost. In other embodiments, the second fixing member 223 can also be a pin or a bolt, etc., which has a simple structure and low cost. All other structures that can achieve the fixing function are within the protection scope of this embodiment.

[0075] like Figure 1 As shown, the spherical printing device further includes a feeding mechanism 40, which is located upstream of the printing plate 10 along the first direction, and includes two feeding guides 41, and a feeding channel 42 is formed between the two feeding guides 41. The product 100 moves along the feeding channel 42 to the printing plate 10, thereby ensuring that the product 100 can be accurately conveyed to the starting end of the printing plate 10. In this embodiment, the feeding channel 42 extends along the first direction, thereby ensuring that the movement of the product 100 from the feeding channel 42 to the printing plate 10 is always along the first direction, so that the entire printing process is smoother.

[0076] like Figure 1As shown, the feeding mechanism 40 also includes a feeding mounting member 43 and a fourth fixing member 44. The feeding mounting member 43 is provided with a fourth adjustment hole 431. The extension direction of the fourth adjustment hole 431 is perpendicular to the extension direction of the feeding channel 42. The fourth fixing member 44 passes through the fourth adjustment hole 431 to fix the feeding mounting member 43 and the feeding guide member 41. The relative position of the fourth fixing member 44 and the fourth adjustment hole 431 along the extension direction of the fourth adjustment hole 431 is adjustable. Therefore, the installation position of the feeding guide member 41 on the feeding mounting member 43 can be adjusted by changing the relative position of the fourth fixing member 44 and the fourth adjustment hole 431, thereby adjusting the size of the feeding channel 42, and then adapting to products 100 of different sizes. In this embodiment, the fourth fixing member 44 can be a structure with simple structure and low cost, such as a bolt and nut assembly or a screw, which is not limited in this embodiment.

[0077] like Figure 1 As shown, the spherical printing device further includes a discharge mechanism 50, which is located downstream of the printing plate 10 along the first direction. The discharge mechanism 50 includes two discharge guides 51, and a discharge channel 52 is formed between the two discharge guides 51. After the printing plate 10 is rolled and printed, the product 100 continues to move to the discharge channel 52, so that the product 100 can accurately move from the discharge channel 52 to the next process. In this embodiment, the discharge channel 52 extends along the first direction, thereby ensuring that the movement of the product 100 from the printing plate 10 to the discharge channel 52 is always along the first direction, so that the entire printing process is smoother.

[0078] like Figure 1 As shown, the discharging mechanism 50 also includes a discharging mounting member 53 and a fifth fixing member 54. The discharging mounting member 53 is provided with a fifth adjusting hole 531. The extension direction of the fifth adjusting hole 531 is perpendicular to the extension direction of the discharging channel 52. The fifth fixing member 54 passes through the fifth adjusting hole 531 to fix the discharging mounting member 53 and the discharging guide member 51. The relative position of the fifth fixing member 54 and the fifth adjusting hole 531 along the extension direction of the fifth adjusting hole 531 is adjustable. Therefore, the installation position of the discharging guide member 51 on the discharging mounting member 53 can be adjusted by changing the relative position of the fifth fixing member 54 and the fifth adjusting hole 531, thereby adjusting the size of the discharging channel 52, and then adapting to products 100 of different sizes. In this embodiment, the fifth fixing member 54 can be a structure with simple structure and low cost, such as a bolt and nut assembly or a screw, which is not limited in this embodiment.

[0079] like Figure 1As shown, the spherical printing device also includes a position detection mechanism 60, which is used to detect the position of the ink transfer roller 23. When the position detection mechanism 60 detects that the ink transfer roller 23 moves to the side of the printing plate 10, the position detection mechanism 60 transmits a signal to the second ink transfer driving member, and the second ink transfer driving member presses the second support member 241 downward, so the position detection mechanism 60 can ensure that the ink transfer mechanism 20 accurately transfers ink to the printing plate 10. In this embodiment, the position detection mechanism 60 is a photoelectric sensor, which includes a signal transmitting end and a signal receiving end. One of the signal transmitting end and the signal receiving end is arranged on the feeding mechanism 40, and the other is arranged on the discharging mechanism 50. The signal emitted by the signal transmitting end can be received by the signal receiving end. The propagation path of the signal is just located at the two sides of the printing plate 10. Because, when the ink transfer roller 23 moves to these two positions, the ink transfer roller 23 will block the signal. At this time, the signal receiving end cannot receive the signal, so as to know the position of the ink transfer roller 23. The photoelectric sensor has accurate detection and stable transmission. In other embodiments, the position detection mechanism 60 can also be a potential position sensor, a capacitive position sensor, etc. All structures that can realize the position detection function are within the protection scope of the embodiments of the present disclosure.

[0080] Combine the following Figure 1 to Figure 6 The working process of the spherical printing device is described as follows:

[0081] First, if Figure 1 and Figure 4 As shown, the first ink transfer driving member drives the first support member 21 to rotate, thereby driving the ink transfer roller 23 to move to the side of the printing plate 10;

[0082] Then, if Figure 1 , Figure 4 and Figure 5 As shown, the position detection mechanism 60 detects that the ink transfer roller 23 moves to the side of the printing plate 10, controls the second ink transfer driving member to press the second support member 241 downward, and the second support member 241 compresses the second elastic member 242 downward, so that the ink transfer roller 23 contacts the printing surface of the printing plate 10;

[0083] Then, if Figure 1 , Figure 4 and Figure 5 As shown, the first ink transfer driving member continues to drive the first support member 21 to rotate, and the second ink transfer driving member continues to press the second support member 241 downward until the ink transfer roller 23 moves to the other side of the printing plate 10;

[0084] Then, if Figure 1 , Figure 4 and Figure 5As shown, the position detection mechanism 60 detects that the ink transfer roller 23 moves to the other side of the printing plate 10, controls the second ink transfer driving member to stop pressing the second support member 241 downward, and the second elastic member 242 is no longer compressed, and the second elastic member 242 gradually extends, thereby driving the second support member 241 to move upward, and the first ink transfer driving member continues to drive the first support member 21 to rotate until the extension direction of the adjustment component 22 is horizontal;

[0085] Then, if Figure 1 As shown, the product 100 moves along the feed channel 42 to the printing plate 10;

[0086] Then, if Figure 1 to Figure 3 As shown, the gas delivery device introduces gas into the cavity 3311, and the gas blows the guide member out along the second direction until the clamping head 31 abuts against the clamped product 100;

[0087] Then, if Figure 1 to Figure 3 As shown, the driving member drives the slider 342 to move along the first direction, thereby driving the clamping head 31 to move along the first direction while rotating, thereby driving the product 100 to roll on the printing plate 10;

[0088] Then, if Figure 1 to Figure 3 As shown, the gas delivery device stops supplying gas to the cavity 3311, the gas no longer has a driving force on the guide member, the first elastic member 332 contracts, thereby pulling the first guide member 32 back to the initial position, and the clamping head 31 no longer clamps the product 100;

[0089] Finally, if Figure 1 As shown, the product 100 moves from the printing plate 10 to the discharge channel 52, and then moves from the discharge channel 52 to the next process.

[0090] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A spherical printing device, characterized in that: include: A printing plate (10), the printing plate (10) being semi-cylindrical and extending along a first direction, the printing surface of the printing plate (10) being able to fit the spherical surface of the product (100); An ink transfer mechanism (20) for transferring ink to the printing surface of the printing plate (10); The clamping mechanism (30) comprises a clamping head (31), a first guide member (32), a first clamping drive assembly (33) and a second clamping drive assembly (34); the clamping head (31) is sleeved on the first guide member (32) and can rotate relative to the first guide member (32); the first clamping drive assembly (33) is used to drive the first guide member (32) to move along a second direction so that the clamping head (31) abuts against and clamps the product (100); the second clamping drive assembly (34) is used to drive the first clamping drive assembly (33) to move along the first direction so that the product (100) rolls on the printing surface of the printing plate (10).

2. The spherical printing device according to claim 1, characterized in that: The first clamping drive assembly (33) comprises: A first guide sleeve (331) extending along the second direction, wherein the first guide member (32) is inserted into the first guide sleeve (331) and can slide along the first guide sleeve (331); A gas delivery device, which is in communication with the cavity (3311) in which the first guide sleeve (331) is plugged with the first guide member (32); A first elastic member (332) is disposed in the cavity (3311) and connected to the first guide member (32); the relative position of one end of the first elastic member (332) away from the first guide member (32) and the first guide sleeve (331) is fixed; and the first elastic member (332) can be extended and retracted along the second direction.

3. The spherical printing device according to claim 2, characterized in that: The first clamping drive assembly (33) further comprises: an adjusting member (333), disposed in the cavity (3311) and connected to an end of the first elastic member (332) away from the first guide member (32); A first fixing member (334), the first guide sleeve (331) is provided with a first adjusting hole (3312) extending along the second direction, the first fixing member (334) passes through the first adjusting hole (3312) and is connected to the adjusting member (333), and the relative position of the first fixing member (334) and the first adjusting hole (3312) along the second direction is adjustable.

4. The spherical printing device according to any one of claims 1 to 3, characterized in that: The ink transfer mechanism (20) comprises: A first support member (21), extending along the first direction and located above the printing plate (10); an adjusting component (22) connected to the first supporting member (21), wherein an extending direction of the adjusting component (22) is perpendicular to the first direction; an ink transfer roller (23), connected to an end of the adjustment component (22) away from the first support member (21) and located above the printing plate (10); a first ink transfer driving member, used for driving the first supporting member (21) to rotate so as to move the ink transfer roller (23) closer to or farther away from the printing plate (10); The ink transfer drive assembly (24) is used to drive the first support member (21) to move in the up and down direction so that the outer peripheral surface of the ink transfer roller (23) is always in contact with the printing surface of the printing plate (10).

5. The spherical printing device according to claim 4, characterized in that: The adjustment component (22) comprises: A second guide member (221) connected to the first support member (21), wherein an extension direction of the second guide member (221) is perpendicular to the first direction; a second guide sleeve (222) connected to the ink transfer roller (23); the second guide member (221) is plugged into the second guide sleeve (222) and can slide along the second guide sleeve (222); the second guide sleeve (222) is provided with a second adjustment hole (2221); the extension direction of the second adjustment hole (2221) is the same as the extension direction of the second guide member (221); The second fixing member (223) passes through the second adjusting hole (2221) and is connected to the second guiding member (221); the relative position of the second fixing member (223) and the second adjusting hole (2221) along the extension direction of the second adjusting hole (2221) is adjustable.

6. The spherical printing device according to claim 4, characterized in that: The ink transfer drive assembly (24) comprises: A second support member (241), connected to the first support member (21); A second elastic member (242) extending in the up-down direction and used to support the second support member (241), wherein the lower end of the second elastic member (242) is fixed in the up-down direction; The second ink transfer driving member is used to press the second supporting member (241) downwards.

7. The spherical printing device according to claim 6, characterized in that: The ink transfer drive assembly (24) further comprises: The third guide sleeve (243) extends in the up-down direction, the second support member (241) includes a first guide portion (2411), the second elastic member (242) includes a second guide portion (2421), the second guide portion (2421) is used to support the first guide portion (2411), and the first guide portion (2411) and the second elastic member (242) are slidably arranged in the third guide sleeve (243).

8. The spherical printing device according to claim 7, characterized in that: The ink transfer drive assembly (24) further comprises: The third fixing member (244) and the second elastic member (242) further include a main body (2422) and a third guide portion (2423). The second guide portion (2421), the main body (2422) and the third guide portion (2423) are sequentially connected from top to bottom. The third guide sleeve (243) is provided with a third adjustment hole (2431) extending in the up-down direction. The third fixing member (244) passes through the third adjustment hole (2431) and is connected to the third guide portion (2423). The relative position of the third fixing member (244) and the third adjustment hole (2431) in the up-down direction is adjustable.

9. The spherical printing device according to any one of claims 1 to 3, characterized in that: The spherical printing device also includes: A feeding mechanism (40) is located upstream of the printing plate (10) along the first direction, and the feeding mechanism (40) includes two feeding guides (41), a feeding channel (42) is formed between the two feeding guides (41), and the product (100) moves along the feeding channel (42) to the printing plate (10).

10. The spherical printing device according to any one of claims 1 to 3, characterized in that: The spherical printing device also includes: A position detection mechanism (60) is used to detect the position of the ink transfer mechanism (20).

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