Printing apparatus

Abstract

The utility model provides printing equipment, and belongs to the field of printing equipment. The printing equipment comprises a base, a connecting structure and a plurality of machine heads with different functions, the connecting structure is connected with the base, the connecting structure is configured to be detachably connected with any machine head in the machine heads, and the connecting structure is connected with at most one machine head. Due to the fact that the connecting structure is detachably connected with the machine heads, the machine head with the corresponding function can be selected from the multiple machine heads to be connected to the connecting structure according to specific process requirements, when other processes need to be achieved, the machine head with the other function is replaced with the machine head with the other function, idling of printing equipment is avoided, occupied space is reduced, and cost is reduced. And the waste of resources is avoided.

Description

[0001] This application claims the priority of the Chinese patent applications with application numbers 202420608119.6, titled "A Head Replacement Unit for a Printing Device", filed on March 26, 2024; 202420623353.6, titled "A Printing Device with Replaceable Heads", filed on March 26, 2024; 202410350771.7, titled "A Printing Device with Replaceable Heads and a Digital Enhancement Unit", filed on March 26, 2024; and 202410350764.7, titled "A Digital Enhancement Unit for a Printing Device", filed on March 26, 2024. The entire contents of these applications are incorporated herein by reference. Technical Field

[0002] This application relates to the field of printing devices, and particularly to a printing device. Background Art

[0003] Printed materials are very common in daily life, such as leaflets, newspapers, product packaging, etc. These printed materials are all printed by printing factories.

[0004] There are various printing processes, and different types of printed materials usually require different processes for printing. According to different requirements for printed products, the process procedures often also vary. To meet the requirements of different customers, printing factories usually need to be equipped with multiple printing devices, such as printing devices for implementing flexographic printing processes; printing devices for implementing die-cutting processes; printing devices that can implement both flexographic printing processes and die-cutting processes.

[0005] According to different customer requirements, the processes to be used will also be different. When printing, only the printing devices corresponding to the required processes need to be used, and the other printing devices will be idle. The idle printing devices not only occupy a large amount of space but also cause waste of resources. Utility Model Content

[0006] The embodiments of this application provide a printing device, which is beneficial to reducing the idleness of printing devices. The technical solution is as follows:

[0007] The embodiments of this application provide a printing device, which includes a base, a connection structure, and multiple heads with different functions. The connection structure is connected to the base, and the connection structure is configured to be detachably connected to any one of the multiple heads, and at most one head is connected to the connection structure.

[0008] In some examples, the connection structure includes a fixed part and a movable part. The movable part is connected to the fixed part and can move relative to the fixed part;

[0009] The fixed part is connected to the base, and the movable part is connected to the machine head.

[0010] In some examples, the movable part is in sliding fit with the fixed part.

[0011] In some examples, the fixed part includes a horizontal slide rail, and the fixed part is in cooperation with the horizontal slide rail.

[0012] In some examples, the fixed part further includes a bottom plate, the bottom plate is detachably connected to the base, and the horizontal slide rail is located on the surface of the bottom plate.

[0013] In some examples, the fixed part further includes two limit members. The limit members are located on the sides of the horizontal slide rail, and the two limit members are spaced along the horizontal slide rail to limit the movement range of the movable part along the horizontal slide rail.

[0014] In some examples, the movable part includes a mounting plate. One side of the mounting plate is in sliding fit with the fixed part, and the other side of the mounting plate is used to connect the machine head.

[0015] In some examples, the connection structure further includes a driving part. The driving part is connected to the fixed part and the movable part respectively to drive the movable part to move.

[0016] In some examples, the driving part includes a lead screw and a connecting block. One of the lead screw and the connecting block is connected to the fixed part, and the other is connected to the movable part.

[0017] In some examples, the lead screw is located on the side of the fixed part away from the movable part. The machine head has a jack, and the lead screw passes through the jack and is in clearance fit with the jack.

[0018] In some examples, the lead screw is located between the fixed part and the movable part.

[0019] In some examples, the connection structure further includes a locking part. The locking part is connected to one of the fixed part and the movable part to lock the movable part.

[0020] In some examples, the locking part includes a pressing block. The pressing block is movably connected to the fixed part to press the movable part.

[0021] In some examples, the multiple printing heads at least include a flexographic printing head and a die-cutting head.

[0022] An embodiment of the present application provides a printing device, which includes a base, a connection structure provided on the base, and a printing head provided on the connection structure; the connection structure includes a bottom plate placed on the base and having chutes on both sides of the top, a horizontal slide rail placed on the bottom plate and placed in the two chutes on both sides, a mounting plate placed on the two horizontal slide rails and having a convex structure at the bottom, and locking portions provided on both sides of the bottom plate and placed at the front end and the tail end of the bottom plate.

[0023] In some examples, the connection structure further includes a connection block provided at the tail end of the bottom plate.

[0024] In some examples, the locking portion includes a fixed seat provided on the bottom plate, a pressing block provided on the fixed seat and having a boss at the front end, a fastening screw provided on the fixed seat and passing through the pressing block, and a third handle provided on the fastening screw.

[0025] In some examples, the fixed seat is L-shaped and has an assembly groove at the top, and the bottom of the pressing block has a protrusion that cooperates with the assembly groove.

[0026] In some examples, a positioning pin with a pointer direction facing the bottom plate is provided at the front end of one side of the mounting plate, and a scale bar is provided on the bottom plate at a position corresponding to the positioning pin.

[0027] In some examples, a plurality of bottom plate fixing holes for fixing the bottom plate on the base are provided on the bottom plate.

[0028] In some examples, a plurality of bolt holes for fixing the printing head are provided on the mounting plate.

[0029] In some examples, the printing head includes a flexographic printing head or a die-cutting head.

[0030] In some examples, the printing device further includes height adjusting feet provided at the four corners of the bottom of the base.

[0031] In some examples, the printing device further includes an adapter plate provided on the base for connecting to other units.

[0032] The beneficial effects brought by the technical solution provided by the embodiment of the present application at least include:

[0033] By setting a base, a connection structure, and multiple machine heads with different functions, and connecting the machine heads and the base through the connection structure. Since the connection structure is detachably connected to the machine heads, it is possible to select a machine head with the corresponding function from multiple machine heads and connect it to the connection structure according to specific process requirements. When other processes need to be implemented, replace it with a machine head with other functions, which avoids the idle state of the printing equipment, reduces the occupation of space, and avoids waste of resources. Brief Description of the Drawings

[0034] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 is a schematic structural diagram of a printing device provided by an embodiment of the present application;

[0036] Figure 2 is a schematic structural diagram of a connection structure provided by an embodiment of the present application;

[0037] Figure 3 is an exploded structural diagram of a connection structure provided by an embodiment of the present application;

[0038] Figure 4 is a schematic structural diagram of a printing device provided by an embodiment of the present application;

[0039] Figure 5 is a schematic structural diagram of a printing device provided by an embodiment of the present application;

[0040] Figure 6 is a schematic structural diagram of a connection structure provided by an embodiment of the present application;

[0041] Figure 7 is an exploded structural diagram of a connection structure provided by an embodiment of the present application;

[0042] Figure 8 is a schematic structural diagram of a printing device provided by an embodiment of the present application;

[0043] Figure 9 is a schematic structural diagram of a printing device provided by an embodiment of the present application;

[0044] Figure 10 is a schematic structural diagram of a printing device provided by an embodiment of the present application;

[0045] Figure 11 is a schematic structural diagram of a connection structure provided by an embodiment of the present application;

[0046] Figure 12 is a partial structural schematic diagram of a connection structure provided by an embodiment of the present application;

[0047] Figure 13 is a structural schematic diagram of a movable part provided by an embodiment of the present application;

[0048] Figure 14 is an exploded structural schematic diagram of a locking part provided by an embodiment of the present application;

[0049] Figure 15 is a partial structural schematic diagram of a connection structure provided by an embodiment of the present application;

[0050] Figure 16 is a structural schematic diagram of a printing device provided by an embodiment of the present application;

[0051] Figure 17 is a structural schematic diagram of a printing device provided by an embodiment of the present application.

[0052] Reference numerals in the drawings:

[0053] Base: 10; Connection structure: 20; Machine head: 30; Fixed part: 21; Movable part: 22; Horizontal sliding rail: 211; Base plate: 212; Base plate fixing hole: 212a; Limiting member: 213; Mounting plate: 221; Bolt hole: 221a; First slider: 222; Groove: 222a; Lead screw: 231; Connection block: 232; Lead screw mounting block: 2121; Rotating rod: 233; First handle: 2331; Second slider: 223; Anti-collision block: 2231; Baffle: 224; Mounting hole: 224a; Handle: 2311; Chute: 212b; Pressing block: 241; Fixed seat: 242; Tightening screw: 243; Third handle: 244; Boss: 2411; Assembly groove: 242a; Protrusion: 2412; Positioning pin: 261; Scale bar: 262; Height adjusting foot: 11; Connecting plate: 12. Detailed implementation manners

[0054] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0055] It should also be understood that the term "and / or" used in the specification and appended claims of the present application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0056] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0057] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and 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 thus should not be construed as a limitation to the present application.

[0058] In addition, in the description of the specification and appended claims of the present application, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

[0059] The reference to "one embodiment" or "some embodiments" etc. described in the specification of the present application means that a specific feature, structure or characteristic described in combination with the embodiment is included in one or more embodiments of the present application. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Plurality" means two or more.

[0060] Figure 1 It is a schematic structural diagram of a printing device provided by an embodiment of the present application. The printing device can be a device for performing printing processes, or a post-processing device for processing products after printing processes. The post-processing device can be, but is not limited to, a device for performing glazing processes, die-cutting processes, laminating processes, cold stamping processes, hot stamping processes, slitting processes.

[0061] Such as Figure 1As shown, the printing device includes a base 10, a connection structure 20, and a plurality of printing heads 30 with different functions (not shown, reference can be made to the subsequent attachments Figure 8 ). The connection structure 20 is connected to the base 10 and is configured to be detachably connected to any one of the plurality of printing heads 30, and at most one printing head 30 is connected to the connection structure 20.

[0062] Exemplarily, the plurality of printing heads 30 at least include a flexographic printing head and a die-cutting head.

[0063] Flexographic printing and die-cutting are widely used processes in printing technology. Setting a flexographic printing head and a die-cutting head can improve the utilization rate of the printing device.

[0064] By providing the base 10, the connection structure 20, and the plurality of printing heads 30 with different functions, the connection structure 20 connects the printing head 30 and the base 10. Since the connection structure 20 is detachably connected to the printing head 30, according to specific process requirements, a printing head 30 with a corresponding function can be selected from the plurality of printing heads 30 and connected to the connection structure 20. When other processes need to be implemented, it can be replaced with a printing head 30 with other functions, avoiding the idle state of the printing device, reducing the space occupation, and avoiding waste of resources.

[0065] Figure 2 It is a schematic structural diagram of a connection structure provided by an embodiment of the present application. As Figure 2 shown, in some examples, the connection structure 20 includes a fixed part 21 and a movable part 22. The movable part 22 is connected to the fixed part 21, and the movable part 22 can move relative to the fixed part 21. The fixed part 21 is connected to the base 10, and the movable part 22 is connected to the printing head 30.

[0066] The installation position of the printing head 30 has a certain impact on its function, for example, it may affect the accuracy of the process. For different printing heads 30, due to differences in structure or function, the installation positions may be different. By installing the printing head 30 on the base 10 through the connection structure 20, since the movable part 22 can move relative to the fixed part 21, the movable part 22 can be moved to adjust the position of the printing head 30, improving the accuracy of the installation position of the printing head 30, and thus improving its process accuracy.

[0067] Figure 3 It is an exploded structural diagram of a connection structure provided by an embodiment of the present application. As Figure 3 shown, in this printing device, the movable part 22 is in sliding fit with the fixed part 21.

[0068] After the machine head 30 is connected to the movable part 22, the position of the machine head 30 is adjusted by sliding the movable part 22. The sliding motion mode is relatively stable, suitable for fine-tuning the position of the machine head 30 and improving the position accuracy of the machine head 30.

[0069] As an example, as Figure 3 shown, the fixed part 21 includes a horizontal slide rail 211, and the fixed part 21 cooperates with the horizontal slide rail 211.

[0070] With the cooperation of the horizontal slide rail 211, the fixed part 21 can move along the horizontal slide rail 211.

[0071] The machine head 30 usually includes several roller shafts. After the machine head 30 is installed in place, the roller shafts are usually required to be horizontal. The horizontally arranged horizontal slide rail 211 can also be used as a reference to improve the levelness of the roller shafts.

[0072] In some examples, the horizontal slide rail 211 can be directly installed on the base 10. Exemplarily, the horizontal slide rail 211 is detachably connected to the base 10, for example, by bolts. The accuracy of the horizontal slide rail 211, such as dimensional accuracy, will affect the installation accuracy of the machine head 30. Using a horizontal slide rail 211 with higher accuracy is beneficial to improving the installation accuracy of the machine head 30 and also makes the sliding of the movable part 22 smoother. The horizontal slide rail 211 is detachably connected to the base 10, which can facilitate the replacement of the horizontal slide rail 211. For example, the horizontal slide rail 211 is replaced when it shows wear beyond the allowable limit.

[0073] The horizontal slide rail 211 can also be fixedly connected to the base 10, for example, by welding.

[0074] Exemplarily, the horizontal slide rail 211 can be a rectangular slide rail, a circular slide rail, an H-shaped slide rail, that is, the cross-section of the slide rail can be rectangular, circular or H-shaped.

[0075] Two or more horizontal slide rails 211 can be provided. The multiple horizontal slide rails 211 are arranged in parallel at intervals to make the sliding of the fixed part 21 smoother.

[0076] In this example, as Figure 3 shown, the fixed part 21 further includes a bottom plate 212. The bottom plate 212 is detachably connected to the base 10, and the horizontal slide rail 211 is located on the surface of the bottom plate 212.

[0077] The bottom plate 212 can provide a relatively flat installation foundation for the horizontal slide rail 211, facilitating the arrangement of the horizontal slide rail 211.

[0078] As Figure 3As shown, the bottom plate 212 can have a plurality of bottom plate fixing holes 212a, and the bottom plate 212 and the base 10 can be connected by bolts.

[0079] The horizontal slide rail 211 and the bottom plate 212 can be detachably connected or fixedly connected.

[0080] In some examples, the fixing part 21 further includes two limiting members 213. The limiting members 213 are located on the side of the horizontal slide rail 211, and the two limiting members 213 are distributed at intervals along the horizontal slide rail 211. The limiting members 213 are used to limit the movement range of the movable part 22 along the horizontal slide rail 211.

[0081] In this example, each limiting member 213 can include at least one limiting rod, and the limiting rod is arranged perpendicular to the surface of the bottom plate 212. The limiting rod is arranged near the end of the horizontal slide rail 211 and has a certain gap with the horizontal slide rail 211. In some examples, each limiting member 213 can include two limiting rods, and the two limiting rods are respectively located on both sides of the horizontal slide rail 211.

[0082] By arranging the limiting members 213 to limit the movement range of the movable part 22 along the horizontal slide rail 211, it is possible to prevent the movable part 22 from detaching from the end of the horizontal slide rail 211.

[0083] Since the limiting members 213 are not installed on the horizontal slide rail 211 but are arranged on the bottom plate 212, and there is still a gap between the limiting members 213 and the horizontal slide rail 211, when adjusting the position of the movable part 22 along the horizontal slide rail 211, even if the movable part 22 accidentally collides with the limiting members 213, the acting force will not directly act on the horizontal slide rail 211, and it is possible to prevent the horizontal slide rail 211 from deforming and affecting the accuracy.

[0084] In some other possible implementation manners, the limiting members 213 can also be connected to the horizontal slide rail 211, for example, detachably connected or fixedly connected to the horizontal slide rail 211, or integrally formed with the horizontal slide rail 211. It is easy to understand that when assembling two relatively close parts to another structure, these two parts are more likely to interfere with each other during the assembly process, affecting the assembly efficiency. In this example, the limiting members 213 and the horizontal slide rail 211 can be assembled first, and then the horizontal slide rail 211 and the bottom plate 212 are assembled together, avoiding mutual interference and making the assembly easier to operate.

[0085] Exemplarily, when the limiting members 213 are arranged on the horizontal slide rail 211, the limiting members 213 can be stoppers, retaining rings, etc. located at both ends of the horizontal slide rail 211.

[0086] In some examples, a limiting member 213 can be provided corresponding to each horizontal slide rail 211 respectively. For example, two limiting members 213 can be arranged corresponding to each horizontal slide rail 211 respectively.

[0087] As Figure 3 shown, the movable part 22 includes a mounting plate 221. One side of the mounting plate 221 is in sliding fit with the fixed part 21, and the other side of the mounting plate 221 is used to connect the machine head 30.

[0088] The mounting plate 221 has a simple structure and can provide a relatively complete and flat surface for the installation of the machine head 30, so that the machine head 30 can be kept stable.

[0089] Exemplarily, the machine head 30 can be connected to the mounting plate 221 by bolts.

[0090] On the side of the mounting plate 221 for connecting the machine head 30, multiple groups of bolt holes 221a can be distributed. Each group of bolt holes 221a is at least used to connect with one machine head 30. For machine heads 30 with different functions, there may be differences in structures such as shapes and sizes. By setting multiple groups of bolt holes 221a on the mounting plate 221, when replacing the machine head 30, bolt holes 221a at appropriate positions can be selected to install the machine head 30, so that the mounting plate 221 can be adapted to different machine heads 30.

[0091] As Figure 3 shown, on the side of the mounting plate 221 close to the bottom plate 212, a first slider 222 can be provided. The first slider 222 is in sliding fit with the horizontal slide rail 211. The first slider 222 can be located between two limiting members 213. When the mounting plate 221 slides relative to the bottom plate 212, the first slider 222 moves between the two limiting members 213.

[0092] As an example, on the side of the first slider 222 away from the mounting plate 221, a groove 222a can be provided, and the horizontal slide rail 211 is located in the groove 222a.

[0093] As Figure 3 shown, the connection structure 20 of the printing device further includes a driving part 23. The driving part 23 is connected to the fixed part 21 and the movable part 22 respectively. The driving part 23 is used to drive the movable part 22 to move. The driving part 23 is provided to facilitate adjusting the position of the movable part 22 on the fixed part 21, so as to achieve the purpose of adjusting the position of the machine head 30.

[0094] As an example, the driving part 23 can include a lead screw mechanism. The lead screw mechanism can include a lead screw 231 and a connecting block 232. One of the lead screw 231 and the connecting block 232 is connected to the fixed part 21 or the base 10, and the other of the lead screw 231 and the connecting block 232 is connected to the movable part 22.

[0095] As shown Figure 3 In this example, as shown, the connecting block 232 is connected to the mounting plate 221, and the lead screw 231 is connected to the bottom plate 212. The lead screw 231 is arranged parallel to the horizontal slide rail 211. The lead screw 231 is in threaded fit with the connecting block 232. By rotating the lead screw 231, the connecting block 232 can be moved along the lead screw 231, thereby driving the mounting plate 221 to move along the horizontal slide rail 211.

[0096] The lead screw mechanism not only moves smoothly but also has high adjustment accuracy, which is beneficial for fine adjustment of the position of the machine head 30. In addition, due to the characteristics of the lead screw mechanism itself, the power is generally transmitted from the lead screw 231 to the connecting block 232, that is, the lead screw 231 can drive the connecting block 232 to move, while it is difficult for the connecting block 232 to drive the lead screw 231 to rotate. This enables the mounting plate 221 to remain stable after the position adjustment is in place and is not prone to displacement.

[0097] As an example, as shown Figure 3 In this example, a lead screw mounting block 2121 is connected to one side of the bottom plate 212, and the lead screw mounting block 2121 has a through hole. The lead screw 231 is inserted into the through hole of the lead screw mounting block 2121 and is in clearance fit with the through hole, so that the lead screw 231 can rotate relative to the lead screw mounting block 2121.

[0098] The driving part 23 may further include a rotating rod 233. The rotating rod 233 is rotatably connected to the lead screw mounting block 2121, and the rotating rod 233 is arranged parallel and spaced from the lead screw 231. The rotating rod 233 is in transmission connection with the lead screw 231. For example, the rotating rod 233 and the lead screw 231 can be connected by gear transmission, or by belt transmission, or by chain transmission. In this example, the rotating rod 233 and the lead screw 231 are connected by belt transmission. The belt connecting the rotating rod 233 and the lead screw 231 can be a V-belt, and the V-belt is not prone to slipping and the transmission is relatively stable. The lead screw 231 and the rotating rod 233 can be respectively connected with belt pulleys, and a belt is wound around the belt pulleys. Figure 3 The belt is omitted in , and only the belt pulleys are shown.

[0099] As shown Figure 3 In this example, a first handle 2331 can be provided at the end of the rotating rod 233 to facilitate the operator to turn the rotating rod 233.

[0100] In some examples, the lead screw 231 is located between the fixed part 21 and the movable part 22.

[0101] As shown Figure 3As shown, the connecting block 232 is located on the side of the mounting plate 221 close to the bottom plate 212. The lead screw 231 is located between the bottom plate 212 and the mounting plate 221. This can not only make full use of the space and reduce the space occupied by the printing device, but also the mounting plate 221 and the bottom plate 212 can provide a certain protective effect on the lead screw 231, avoiding impurities adhering to the surface of the lead screw 231 and preventing foreign objects from getting stuck between the lead screw 231 and the connecting block 232, thus affecting the normal function of the lead screw mechanism.

[0102] In some examples, the connecting structure 20 further includes a locking portion, which is connected to one of the fixed portion 21 and the movable portion 22, and the locking portion is used to lock the movable portion 22.

[0103] As an example, the locking portion may include a brake, which is sleeved outside the lead screw 231, and the brake is used to lock the lead screw 231. After rotating the lead screw 231 and adjusting the head 30 in place, locking the lead screw 231 through the brake can further prevent the loosening of the lead screw mechanism and improve the stability of the printing device.

[0104] In some possible implementation manners, the locking portion may also include pressing blocks, which are distributed at the edge of the mounting plate 221. For example, the locking portion may include a plurality of pressing blocks, and the plurality of pressing blocks are spaced along the edge of the mounting plate 221. The pressing blocks are movably connected to the bottom plate 212. For example, the pressing blocks may be connected to the bottom plate 212 through bolts. By tightening the bolts, the pressing blocks are pressed against the surface of the mounting plate 221 away from the bottom plate 212, and the mounting plate 221 is locked by the downward pressure and friction of the pressing blocks, thereby locking the movable portion 22.

[0105] Figure 4 and Figure 5 are schematic structural diagrams of a printing device provided by an embodiment of the present application. Figure 6 is a schematic structural diagram of a connecting structure provided by an embodiment of the present application. As Figure 6 shown, in this printing device, the connecting structure 20 includes a fixed portion 21, a movable portion 22 and a driving portion 23.

[0106] Figure 7 is an exploded structural diagram of a connecting structure provided by an embodiment of the present application. As Figure 7 shown, the fixed portion 21 of the connecting structure 20 includes two horizontal slide rails 211, and the two horizontal slide rails 211 are respectively connected to the base 10. As an example, the horizontal slide rail 211 is a circular horizontal slide rail, that is, the cross-section of the horizontal slide rail 211 is circular.

[0107] The movable part 22 of the connecting structure 20 includes a mounting plate 221 and a second slider 223. The second slider 223 is connected to one side of the mounting plate 221. The second slider 223 is sleeved outside the horizontal slide rail 211 and is in clearance fit with the horizontal slide rail 211, so that the second slider 223 can slide along the horizontal slide rail 211.

[0108] The driving part 23 includes a lead screw 231 and a connecting block 232. The lead screw 231 is connected to the movable part 22, and the connecting block 232 is connected to the base 10. The lead screw 231 is located on the side of the fixed part 21 away from the movable part 22.

[0109] As Figure 7 shown, anti-collision blocks 2231 are arranged on the outer sides of the two second sliders 223. The anti-collision blocks 2231 are connected to the second sliders 223. There is a gap between the anti-collision blocks 2231 and the base 10. The anti-collision blocks 2231 can limit the movement range of the movable part 22 relative to the horizontal slide rail 211.

[0110] The anti-collision blocks 2231 can be flexible parts, such as rubber parts, to play a buffering role and avoid hard collisions between the connecting structure 20 and the base 10.

[0111] In this example, the movable part 22 further includes two baffles 224. The baffles 224 are arranged on the side of the mounting plate 221 away from the second slider 223. The two baffles 224 are arranged at intervals along the extending direction of the horizontal slide rail 211. Exemplarily, the two baffles 224 are parallel.

[0112] The lead screw 231 can be inserted into the two baffles 224 and is arranged parallel to the horizontal slide rail 211. The lead screw 231 and the baffles 224 are locked to each other in the axial direction of the lead screw 231, and the lead screw 231 is in rotational fit with the baffles 224. That is to say, the lead screw 231 can rotate relative to the baffles 224, but their relative positions remain unchanged in the axial direction of the lead screw 231.

[0113] As Figure 7 shown, the lead screw 231 penetrates through the baffle 224. One end of the lead screw 231 is threadedly connected to the connecting block 232, so that during the rotation of the lead screw 231, the lead screw 231 can move relative to the connecting block 232 along the axial direction of the lead screw 231, thereby driving the movable part 22 to slide along the horizontal slide rail 211. By providing the two baffles 224, the head 30 can be limited.

[0114] The baffle 224 may also be provided with mounting holes 224a, which can be used to connect with the machine head 30. To meet the installation requirements of different machine heads 30, multiple mounting holes 224a may be provided, and the positions where the mounting holes 224a are distributed can be set according to the machine head 30. When installing the machine head 30, the machine head 30 can be selectively connected to some of the multiple mounting holes 224a.

[0115] Exemplarily, at least one baffle 224 is detachably connected to the mounting plate 221. For example, the baffle 224 and the mounting plate 221 are connected by bolts. This can facilitate the disassembly and assembly of the machine head 30.

[0116] In this example, both ends of the lead screw 231 extend relative to the baffle 224. One end of the lead screw 231 cooperates with the connecting block 232, and the other end of the lead screw 231 is connected with a second handle 2311. By providing the second handle 2311, it is convenient to manually rotate the lead screw 231 to adjust the position of the movable part 22 on the horizontal slide rail 211.

[0117] In this example, the machine head 30 has a jack, and the lead screw 231 passes through the jack and has a clearance fit with the jack.

[0118] By providing a jack on the machine head 30 to accommodate the lead screw 231, protection can be provided for the lead screw 231, preventing the lead screw 231 from being exposed and being knocked and deformed, and also preventing sundries from adhering to the surface of the lead screw 231 and affecting the rotation of the lead screw 231.

[0119] In this example, two baffles 224 are respectively detachably connected to the mounting plate 221. When the machine head 30 needs to be replaced, at least one of the two baffles 224 can be removed. For example, remove one of the two baffles 224 that is far from the connecting block 232. During the removal process, the lead screw 231 can be rotated to separate the lead screw 231 from the connecting block 232, and the lead screw 231 can be pulled out of the jack, so that the baffle 224 and the lead screw 231 are removed together.

[0120] Figures 8 - 10 It is a schematic structural diagram of a printing device provided by an embodiment of the present application. As Figure 8 shown, in this example, the printing device includes a base 10, a connection structure 20 provided on the base 10, and a machine head 30 provided on the connection structure 20.

[0121] Figure 11 It is a schematic structural diagram of a connection structure provided by an embodiment of the present application. As Figure 11 shown, in this connection structure 20, the fixed part 21 includes a bottom plate 212 and a horizontal slide rail 211, the movable part 22 includes a mounting plate 221, and the driving part 23 includes a lead screw 231 and a connecting block 232.

[0122] Figure 12 It is a partial structural schematic diagram of a connection structure provided by an embodiment of the present application. Figure 12 At least the movable part 22 and the lead screw 231 are omitted. Figure 13 It is a structural schematic diagram of a movable part provided by an embodiment of the present application. As Figure 12 and Figure 13 shown, the connection structure 20 includes a bottom plate 212 placed on the base 10 and having sliding grooves 212b on both sides of the top, a horizontal slide rail 211 placed on the bottom plate 212 and located in the sliding grooves 212b on both sides, a mounting plate 221 placed on the horizontal slide rails 211 on both sides and having a convex structure at the bottom, and locking parts 24 provided on both sides of the bottom plate 212 and located at the front end and the tail end of the bottom plate 212. Through the connection structure 20, the printing head 30 of the printing device can be replaced, enabling the previous single printing device to achieve more printing functions, greatly saving the equipment purchase cost. Only by purchasing the corresponding required printing head 30 can the corresponding functions be achieved.

[0123] The printing head 30 can be installed on the mounting plate 221 by means of bolt connection, and the mounting plate 221 is placed on the horizontal slide rail 211. The horizontal slide rail 211 is located in the sliding grooves 212b on the corresponding two sides of the bottom plate 212. By installing the bottom plate 212 on the base, the installation of the printing head 30 is achieved. The mounting plate 221 is fastened by the locking parts 24 provided on the bottom plate 212. There are at least four locking parts 24, which are respectively installed around the bottom plate 212, and the mounting plate 221 is fastened by the way of fastening around, effectively preventing the printing head 30 from deviating from the working position due to the vibration of the printing device.

[0124] When the printing head 30 needs to be replaced, only the locking parts 24 around need to be unlocked, then the mounting plate 221 can be pulled out on the horizontal slide rail 211. After replacing the required printing head 30, the mounting plate 221 can be fixed by the locking parts 24 to complete the replacement of the printing head 30.

[0125] The bottom of the mounting plate 221 has a convex structure, which can facilitate the positioning of the mounting plate 221 between the two horizontal slide rails 211, so that the mounting plate 221 can be smoothly installed on the two horizontal slide rails 211. The sliding grooves 212b on the bottom plate 212 can limit the horizontal slide rail 211. The height of the convex structure at the bottom of the mounting plate 221 is less than the height of the horizontal slide rail 211 protruding from the top surface of the bottom plate 212, which not only plays a role of limiting and guiding, but also avoids friction between the mounting plate 221 and the bottom plate 212.

[0126] In this example, the driving part 23 includes a lead screw 231 and a connecting block 232. The connecting block 232 is arranged at the tail end of the bottom plate 212. The connecting block 232 is arranged at the tail end of the bottom plate 212 to enable fine adjustment of the machine head 30 on the mounting plate 221. Exemplarily, the machine head 30 has a jack, and the lead screw 231 passes through the jack and is in clearance fit with the jack. The lead screw 231 and the machine head 30 are axially locked to each other, and the lead screw 231 can rotate relative to the machine head 30. One end of the lead screw 231 extends relative to the machine head 30, and the other end of the lead screw 231 is in threaded fit with the connecting block 232. Under the interaction between the lead screw 231 and the connecting block 232, when the lead screw 231 is rotated, the lead screw 231 can move relative to the connecting block 232, thereby driving the machine head 30 to move along the horizontal slide rail 211.

[0127] Figure 14 It is a schematic exploded view of a locking part provided by an embodiment of the present application. As Figure 14 shown, the locking part 24 includes a pressing block 241, and the pressing block 241 is movably connected to the fixed part 21. The pressing block 241 is used to press the movable part 22.

[0128] Figure 15 It is a schematic partial view of a connection structure provided by an embodiment of the present application. As Figure 14 and Figure 15 shown, in this example, the locking part 24 further includes a fixed seat 242 arranged on the bottom plate 212, a fastening screw 243 arranged on the fixed seat 242 and passing through the pressing block 241, and a third handle 244 arranged on the fastening screw 243. One side of the pressing block 241 has a boss 2411. The locking part 24 is installed on the bottom plate 212 through the fixed seat 242, and the pressing block 241 is installed on the fixed seat 242 through the fastening screw 243. At least part of the orthographic projection of the boss 2411 on the pressing block 241 is located within the mounting plate 221. When fixedly installing the mounting plate 221, the fastening screw 243 is rotated through the third handle 244 to make the boss 2411 on the pressing block 241 contact the mounting plate 221, thereby fastening the mounting plate 221 on the bottom plate 212, that is, completing the installation of the machine head 30. When replacing the machine head 30, the pressing block 241 is released by rotating the fastening screw 243 through the third handle 244 to separate the boss 2411 from the mounting plate 221, so that the mounting plate 221 and the machine head 30 can be pulled out from the horizontal slide rail 211. After replacing the machine head 30, the machine head 30 and the mounting plate 221 can be installed on the horizontal slide rail 211 again.

[0129] As Figure 14As shown, the fixing base 242 is in an inverted L shape and has an assembly groove 242a at the top. The bottom of the pressing block 241 has a protrusion 2412 that mates with the assembly groove 242a. The fixing base 242 is made in an L shape to make the fixing base 242 more stable during installation and prevent the fixing base 242 from loosening. The assembly groove 242a is provided at the top of the fixing base 242 to cooperate with the protrusion 2412 at the bottom of the pressing block 241, and it is convenient to position the pressing block 241 through the cooperation of the assembly groove 242a and the protrusion 2412.

[0130] As an example, the printing device may further include a positioning pin 261 and a scale bar 262. The positioning pin 261 may be located at the edge of the mounting plate 221 and connected to the mounting plate 221. The scale bar 262 may be located on the bottom plate 212, and the scale bar 262 is arranged along the extension direction of the horizontal slide rail 211. The positioning pin 261 points to the scale bar 262. During the process of adjusting the mounting plate 221 along the horizontal slide rail 211, the positioning pin 261 moves relative to the scale bar 262, and the position of the mounting plate 221 can be accurately adjusted according to the change of the position indicated by the positioning pin 261 on the scale bar 262, improving the mounting accuracy of the machine head 30.

[0131] In this example, a positioning pin 261 with the pointer direction facing the bottom plate 212 is provided at the front end of one side of the mounting plate 221, and a scale bar 262 is provided at the position of the bottom plate 212 corresponding to the positioning pin 261. The positioning pin 261 is provided on the mounting plate 221 and the scale bar 262 is provided on the bottom plate 212 to play a positioning role when installing the mounting plate 221, and at the same time, it also plays a role in facilitating the installation of the machine head 30, so as to more accurately position and install the machine head 30.

[0132] A plurality of bottom plate fixing holes 212a for fixing the bottom plate 212 to the base 10 are provided on the bottom plate 212. A plurality of bolt holes 221a for fixing the machine head 30 are provided on the mounting plate 221. The bottom plate fixing holes 212a are for conveniently connecting the bottom plate 212 to the base 10 through bolts. The bolt holes 221a are for conveniently connecting machine heads 30 with different functions to the mounting plate 221, and then installing them on the base 10, enabling a single printing device to achieve more printing functions and meeting different printing requirements with one device.

[0133] The printing device further includes a plurality of height adjusting feet 11 provided at the bottom of the base 10. The height adjusting feet 11 are provided on the base 10 to facilitate height adjustment of the entire printing device, so as to better cooperate with other printing devices for use. The height adjusting feet 11 can also be used to adjust the levelness of the printing device to make the printing device reach the best use state.

[0134] The printing device further includes an adapter plate 12 disposed on the base 10 for connecting to other printing devices. The adapter plate 12 is provided on the base 10 to facilitate connection with other printing devices, enabling multiple printing devices to be connected as a single unit.

[0135] Exemplarily, the printing head 30 includes a flexographic printing head or a die-cutting head. For example Figures 8 - 10 In the illustrated printing device, the printing head 30 is a die-cutting head. Figure 16 and Figure 17 is a schematic structural diagram of a printing device provided by an embodiment of the present application. As Figure 16 and Figure 17 shown, in this example, the printing head 30 is a flexographic printing head.

[0136] By connecting different process heads to the base 10, such a printing device achieves the effect of implementing different processes on the same base 10, thereby reducing the cost of purchasing multiple printing devices, reducing the floor space cost of multiple printing devices, and reducing the labor cost of multiple operators. Additionally, such a printing device has a simple structure and low cost, and can satisfy the interchangeability of the flexographic printing head and the die-cutting head.

[0137] The above-described embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A printing device, characterized in that, It includes a base (10), a connection structure (20), and multiple machine heads (30) with different functions. The connection structure (20) is connected to the base (10), and is configured to be detachably connected to any one of the multiple machine heads (30), and at most one machine head (30) is connected to the connection structure (20).

2. The printing device according to claim 1, characterized in that, The connection structure (20) includes a fixed part (21) and a movable part (22). The movable part (22) is connected to the fixed part (21) and can move relative to the fixed part (21). The fixed part (21) is connected to the base (10), and the movable part (22) is connected to the machine head (30).

3. The printing device according to claim 2, characterized in that, The movable part (22) is in sliding fit with the fixed part (21).

4. The printing device according to claim 3, characterized in that, The fixed part (21) includes a horizontal slide rail (211), and the fixed part (21) is in cooperation with the horizontal slide rail (211).

5. The printing device according to claim 4, characterized in that, The fixed part (21) further includes a bottom plate (212). The bottom plate (212) is detachably connected to the base (10), and the horizontal slide rail (211) is located on the surface of the bottom plate (212).

6. The printing device according to claim 4, characterized in that, The fixed part (21) further includes two limit members (213). The limit members (213) are located on the side of the horizontal slide rail (211). The two limit members (213) are spaced along the horizontal slide rail (211) to limit the movement range of the movable part (22) along the horizontal slide rail (211).

7. The printing device according to any one of claims 2 to 6, characterized in that The movable part (22) includes a mounting plate (221). One side of the mounting plate (221) is in sliding fit with the fixed part (21), and the other side of the mounting plate (221) is used to connect the machine head (30).

8. The printing device according to any one of claims 2 to 6, characterized in that, The connection structure (20) further includes a driving part (23). The driving part (23) is respectively connected to the fixed part (21) and the movable part (22) to drive the movable part (22) to move.

9. The printing device according to claim 8, characterized in that, The driving part (23) includes a lead screw (231) and a connection block (232). The lead screw (231) and the connection block (232) are in threaded fit. One of the lead screw (231) and the connection block (232) is connected to the fixed part (21) or the base (10), and the other is connected to the movable part (22) or the machine head (30).

10. The printing device according to claim 9, characterized in that, The lead screw (231) is located on the side of the fixed part (21) away from the movable part (22). The machine head (30) has a jack, and the lead screw (231) passes through the jack and is in clearance fit with the jack.

11. The printing device according to claim 9, wherein The lead screw (231) is located between the fixed part (21) and the movable part (22).

12. The printing apparatus according to any one of claims 2 to 6, 9 to 11, characterized in that, The connection structure (20) further includes a locking part (24). The locking part (24) is connected to one of the fixed part (21) and the movable part (22) to lock the movable part (22).

13. The printing device according to claim 12, characterized in that, The locking part (24) includes a pressing block (241), which is movably connected to the fixing part (21) and is used to press the movable part (22).

14. The printing apparatus according to any one of claims 2 to 6 and 9 to 11, characterized in that, The plurality of machine heads (30) at least include a flexographic printing machine head and a die-cutting machine head.

15. The printing device according to claim 1, characterized in that, The connecting structure (20) includes a bottom plate (212) placed on the base (10) and having sliding grooves (212b) on both sides of the top, a horizontal sliding rail (211) placed on the bottom plate (212) and located in the sliding grooves (212b) on both sides, a mounting plate (221) placed on the horizontal sliding rails (211) on both sides and having a convex structure at the bottom, and a locking part (24) provided on both sides of the bottom plate (212) and located at the front end and the tail end of the bottom plate (212).

16. The printing device according to claim 15, characterized in that, The locking part (24) includes a fixing seat (242) provided on the bottom plate (212), a pressing block (241) provided on the fixing seat (242) and having a boss (2411) at the front end, a fastening screw (243) provided on the fixing seat (242) and passing through the pressing block (241), and a third handle (244) provided on the fastening screw (243).

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