Cutter module, longitudinal cutting device and printer

Abstract

The utility model provides a cutter module, a longitudinal cutting device and a printer, and relates to the technical field of printers. The cutter module comprises a transmission assembly and at least two cutter assemblies, wherein the transmission assembly comprises a transmission shaft; the cutter assembly comprises a cutter installation unit, a bearing unit and a cutter unit, the bearing unit and the cutter unit are both arranged on the cutter installation unit, the bearing unit is provided with a one-way needle bearing, the transmission shaft is arranged in an inner hole of the one-way needle bearing in a sliding and penetrating mode, and needle rollers of the one-way needle bearing make contact with the transmission shaft. The degree of dependence of the rotary cutter assembly on the manual technical capability in the adjusting process can be reduced, the adjusting efficiency is higher, and time and labor are saved.

Description

Technical Field

[0001] This application relates to the field of printer technology, and more particularly to a cutting tool module, a longitudinal cutting device, and a printer. Background Technology

[0002] The printer uses a longitudinal cutting device to cut the printed material vertically, which, in conjunction with a transverse cutting device, cuts the material horizontally to achieve page separation. Typically, the longitudinal cutting device includes multiple rotating cutter assemblies with adjustable spacing to accommodate different cutting requirements. However, in practice, adjusting the rotating cutter assemblies requires disassembling and reassembling them, and repeatedly adjusting the parallelism of the cutting discs to ensure cutting quality. Clearly, due to the high precision required for cutting, the entire process of adjusting the parallelism of the cutting discs relies on repeated manual calibration, which is time-consuming, labor-intensive, and demands a high level of skill from the operators. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a cutting tool module, a longitudinal cutting device and a printer that can reduce the dependence on manual technical skills in the adjustment process of the rotating cutting tool assembly, and has higher adjustment efficiency, saving time and effort.

[0004] This application provides the following technical solution:

[0005] In a first aspect, embodiments of this application provide a tool module, the tool module comprising:

[0006] The transmission assembly includes a transmission shaft;

[0007] At least two cutting blade assemblies, each comprising a blade mounting unit, a bearing unit, and a cutting blade unit, wherein the bearing unit and the cutting blade unit are both disposed in the blade mounting unit, the bearing unit having a one-way needle roller bearing, the drive shaft slidingly passing through the inner hole of the one-way needle roller bearing, and the needles of the one-way needle roller bearing all contacting the drive shaft.

[0008] In some embodiments of the first aspect, the transmission assembly further includes a first drive unit connected to the transmission shaft, the first drive unit being used to drive the transmission shaft to rotate;

[0009] The cutting unit has a cutting disc, which is rotatably connected to the tool mounting unit. The bearing unit is rotatably connected to the tool mounting unit, so that the bearing unit can rotate around a preset axis. The preset axis is collinear with the axis of the one-way needle roller bearing. The cutting disc is also drivenly connected to the one-way needle roller bearing.

[0010] In some embodiments of the first aspect, the bearing unit further includes a bearing mounting base, the tool mounting unit has a first mounting hole and a second mounting hole, the axis of the first mounting hole and the axis of the second mounting hole are arranged parallel to each other, a first end of the bearing mounting base is coaxially inserted through the first mounting hole, the first end of the bearing mounting base and the first mounting hole are rotatably engaged, the second end of the bearing mounting base has an axially penetrating hole, the one-way needle roller bearing is coaxially arranged with the axial hole, and the drive shaft is also slidably inserted through the axial hole;

[0011] The cutting unit also includes a rotating shaft, which is coaxially inserted through the second mounting hole. The rotating shaft and the second mounting hole are rotatably engaged, and the rotating shaft and the cutting disc are coaxially connected.

[0012] In some embodiments of the first aspect, one end face of the rotating shaft is a mounting end face, the mounting end face is perpendicular to the axis of the rotating shaft, and the mounting end face abuts against and fits against one side of the cutting disc.

[0013] In some embodiments of the first aspect, the cutting unit further includes a clamping member and at least two fasteners, the at least two fasteners being spaced apart around the cutting disc, the fasteners being sequentially inserted through fastening holes in the clamping member and through holes in the cutting disc, and being connected to the rotating shaft, such that the clamping member and the rotating shaft are connected, the clamping member having a pressing end face, the pressing end face and the side of the cutting disc opposite to the mounting end face being abutted and fitted together;

[0014] The extrusion end face has an annular groove, which is coaxially arranged with the cutting disc. An elastic washer is installed in the annular groove, and the elastic washer elastically abuts against the corresponding side of the cutting disc.

[0015] In some embodiments of the first aspect, the mounting end face is formed with a positioning portion, the positioning portion and the rotating shaft are coaxially arranged, the clamping member has a positioning hole, the positioning portion passes through the center hole of the cutting disc and the positioning hole of the clamping member, and the positioning portion is respectively clearance-fitted with the positioning hole of the clamping member and the center hole of the cutting disc.

[0016] In some embodiments of the first aspect, the tool module further includes a guide rail unit that is slidably connected to the tool mounting unit, and the guide rail unit and the drive shaft extend in the same direction.

[0017] In some embodiments of the first aspect, the tool module further includes a spacing adjustment unit, which includes a helical rack, at least two helical gears, and at least two second drive units. The helical rack and the drive shaft extend in the same direction. Each tool mounting unit of the cutting tool assembly is provided with a second drive unit. The second drive unit is connected to a helical gear and is used to drive the corresponding helical gear to rotate. The helical gear meshes with the helical rack.

[0018] Secondly, this application also provides a longitudinal cutting device, which includes a cutting tool module as described in any of the above embodiments.

[0019] Thirdly, this application also provides a printer, which includes the longitudinal cutting device as described in the above embodiments.

[0020] The embodiments of this application have the following advantages:

[0021] This application provides a cutting tool module in which a drive shaft slides through the inner hole of a one-way needle roller bearing in a cutting tool assembly. Through the close contact between the needle rollers of the one-way needle roller bearing and the drive shaft, the positional error of the cutting tool unit relative to the drive shaft is controlled, thereby controlling the parallelism of the cutting tool unit. The characteristics of the one-way needle roller bearing allow the cutting tool assembly to rotate only in one direction along the drive shaft (avoiding reverse sliding), while allowing the cutting tool assembly to slide freely along the axial direction of the drive shaft, facilitating spacing adjustment. Furthermore, the contact between the needle rollers and the drive shaft enables precise control of the relative position of the moving cutting tool assembly. That is, when adjusting the spacing of the cutting tool assembly, the cutting tool mounting unit slides along the drive shaft. Because the inner hole of the one-way needle roller bearing maintains a high-precision fit with the drive shaft, and the needle rollers are evenly stressed, the cutting tool disc of the cutting tool unit automatically maintains parallelism with the drive shaft during movement, eliminating the need for repeated manual calibration.

[0022] Therefore, the self-centering characteristic of unidirectional needle roller bearings automatically maintains the parallelism of the cutting disc, eliminating the need for repeated disassembly and manual calibration in traditional methods, significantly reducing reliance on operator skill. The spacing of the cutting blade assembly can be adjusted simply by sliding along the drive shaft, without disassembly or additional parallelism adjustments, making operation simple and quick, saving time and labor costs. The high rigidity of the unidirectional needle roller bearings ensures that the cutting disc does not shift during movement and operation, providing uniform and stable transmission power and avoiding uneven cutting caused by parallelism deviations.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This illustration shows a schematic diagram of the structure of a cutting tool module according to an embodiment of the present application from one perspective;

[0026] Figure 2 This invention provides a schematic diagram of the structure of a tool module from another perspective, according to an embodiment of the present application.

[0027] Figure 3 This illustration shows a structural schematic diagram of a cutting tool module provided in one embodiment of the present application from another perspective;

[0028] Figure 4 This invention provides a schematic diagram of the structure of a tool module from another perspective, according to an embodiment of the present application.

[0029] Figure 5 It shows Figure 4 AA section view in the middle;

[0030] Figure 6 The diagram shows a structural schematic of a tool mounting unit according to an embodiment of this application from one perspective.

[0031] Explanation of key component symbols:

[0032] 100 - Transmission assembly; 110 - Drive shaft; 120 - First drive unit;

[0033] 200-Cutter assembly; 210-Cutter mounting unit; 211-First mounting hole; 212-Second mounting hole; 220-Bearing unit; 221-Bearing mounting seat; 222-One-way needle roller bearing; 230-Cutter unit; 231-Cutter disc; 232-Fastener; 233-Clamping component; 240-Rotating shaft; 241-Positioning part; 242-Mounting end face; 250-Elastic washer;

[0034] 300 - Pitch adjustment unit; 310 - Second drive unit; 320 - Helical rack. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] In related technologies, printers use a longitudinal cutting device to cut printed materials longitudinally, in conjunction with a transverse cutting device to achieve page separation. Typically, the longitudinal cutting device includes multiple rotating cutter assemblies with adjustable spacing to accommodate different cutting requirements. However, in actual adjustment of the rotating cutter assemblies, it is necessary to disassemble and reassemble them, and repeatedly adjust the parallelism of the cutting discs to ensure cutting quality. Clearly, due to the high precision required for cutting, the entire process of adjusting the parallelism of the cutting discs relies on repeated manual calibration, which is time-consuming, labor-intensive, and demands a high level of skill from the operators.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, in order to solve the above-mentioned technical problems, this application provides a tool module. The tool module includes a transmission assembly 100 and at least two cutting blade assemblies 200. The transmission assembly 100 includes a transmission shaft 110. The cutting blade assembly 200 includes a tool mounting unit 210, a bearing unit 220 and a cutting blade unit 230. The bearing unit 220 and the cutting blade unit 230 are both disposed in the tool mounting unit 210. The bearing unit 220 has a one-way needle roller bearing 222. The transmission shaft 110 slides through the inner hole of the one-way needle roller bearing 222, and the needles of the one-way needle roller bearing 222 are all in contact with the transmission shaft 110.

[0042] In these embodiments, the tool module, through structural improvements, reduces the need for manual calibration and enhances adjustment efficiency and cutting quality. The specific solutions are as follows:

[0043] The transmission assembly 100 includes a transmission shaft 110, which serves as a wire component and a core component for subsequent power transmission. As described below, the transmission shaft 110 is used to drive the cutting blade assembly 200 to work.

[0044] For example, the drive shaft 110 can be a smooth shaft. Of course, a round shaft with a surface roughening treatment can also be used.

[0045] The number of cutting blade assemblies 200 is at least two. For example, the number of cutting blade assemblies 200 may be two, three, four, five, six, seven, or eight, etc. No specific limit is made here, and the number may be increased or decreased according to actual cutting needs.

[0046] The tool mounting unit 210 is used to fix and support the bearing unit 220 and the cutting tool unit 230.

[0047] Bearing unit 220 includes a one-way needle roller bearing 222. This type of bearing allows the cutting blade assembly 200 to slide freely along the drive shaft 110 axially while restricting its movement in unwanted directions, ensuring the stability of the cutting process. It should be noted that, due to the characteristics of the one-way needle roller bearing 222, the change in needle roller float of the one-way needle roller bearing 222 can maintain contact with the drive shaft 110.

[0048] For example, the number of one-way needle roller bearings 222 is one. Of course, in other embodiments, the number of one-way needle roller bearings 222 may also be two, three, four, five or six. When there are multiple one-way needle roller bearings 222, they are fixed by being connected in series.

[0049] The cutting unit 230 is the part that actually performs the cutting operation. It is closely integrated with the cutting tool mounting unit 210 to ensure the accuracy and efficiency of the cutting action. For example, the cutting tool of the cutting unit in this application is a cutting disc. Of course, in other embodiments, the cutting tool can also be a blade.

[0050] In simple terms, the drive shaft 110 slides through the inner hole of the one-way needle roller bearing 222 of the cutting blade assembly 200. Through the close contact between the needle rollers of the one-way needle roller bearing 222 and the drive shaft 110, the positional error of the cutting blade unit 230 relative to the drive shaft 110 is controlled, thereby controlling the parallelism of the cutting blade unit 230. The characteristics of the one-way needle roller bearing 222 allow the cutting blade assembly 200 to rotate only in one direction along the drive shaft 110 (avoiding reverse sliding), while allowing the cutting blade assembly 200 to slide freely along the axial direction of the drive shaft 110, facilitating spacing adjustment. Furthermore, the contact between the needle rollers and the drive shaft 110 allows for precise control of the relative position of the moving cutting blade assembly 200. That is, when adjusting the spacing of the cutting blade assembly 200, the tool mounting unit 210 slides along the drive shaft 110. Because the inner hole of the one-way needle roller bearing 222 always maintains a high-precision fit with the drive shaft 110, and the needle rollers are evenly stressed, the cutting blade disc 231 of the cutting blade unit automatically maintains parallelism with the drive shaft 110 during movement, eliminating the need for repeated manual calibration.

[0051] Therefore, the self-centering characteristic of the one-way needle roller bearing 222 automatically maintains the parallelism of the cutting blade disc 231, eliminating the need for repeated disassembly and manual calibration in traditional methods, significantly reducing reliance on operator skill. The spacing of the cutting blade assembly 200 can be adjusted simply by sliding along the drive shaft 110, without disassembly or additional parallelism adjustments, making operation simple and quick, saving time and labor costs. The high rigidity of the one-way needle roller bearing 222 ensures that the cutting blade disc 231 does not shift during movement and operation, providing uniform and stable transmission power, and avoiding uneven cutting caused by parallelism deviations.

[0052] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments, the transmission assembly 100 further includes a first drive unit 120, which is connected to the transmission shaft 110 and is used to drive the transmission shaft 110 to rotate.

[0053] The cutting unit 230 includes a cutting disc 231, which is rotatably connected to the cutting tool mounting unit 210. The bearing unit 220 is also rotatably connected to the cutting tool mounting unit 210, allowing the bearing unit 220 to rotate around a preset axis. The preset axis is collinear with the axis of the one-way needle roller bearing 222. The cutting disc 231 is also connected to the one-way needle roller bearing 222 via a transmission connection, enabling the transmission shaft 110 to drive the cutting disc 231 to rotate.

[0054] In these embodiments, the tool module has been structurally refined. In some embodiments, the tool module includes not only the drive shaft 110 and the cutting blade assembly 200, but also a first drive unit 120 to drive the drive shaft 110 to rotate.

[0055] The first drive unit 120 is directly or via a transmission mechanism connected to the drive shaft 110. Its function is to provide rotational power to the drive shaft 110, which in turn works with the cutting unit 230 to transmit rotational power to the cutting disc 231 of the cutting unit 230. This allows multiple cutting blade assemblies 200 in the entire tool module to share a single power source, simplifying the overall structure and improving the synchronization of the actions of the multiple cutting discs 231.

[0056] The cutting blade disc 231 in each cutting blade assembly 200 is rotatably connected to the blade mounting unit 210. This means that the cutting blade disc 231 can rotate about a specific axis when needed to perform rotary cutting.

[0057] The bearing unit 220 (including the one-way needle roller bearing 222) is also rotatably connected to the cutter mounting unit 210 and is capable of rotating about a preset axis. This preset axis is collinear with the axis of the one-way needle roller bearing 222, ensuring that the drive shaft 110 can transmit power to the cutting disc 231.

[0058] The cutting disc 231 is also connected to the one-way needle roller bearing 222 for transmission, allowing the cutting disc 231 to also utilize the rotational power provided by the one-way needle roller bearing 222, thereby driving the rotation of the drive shaft 110 to be transmitted to the cutting disc 231 via the one-way rotation of the one-way needle roller bearing 222, thereby driving the cutting disc 231 to rotate.

[0059] For example, in this embodiment, the one-way needle roller bearing 222 is connected to the cutting disc 231 via a transmission mechanism, which is a synchronous belt transmission mechanism. Of course, in other embodiments, the transmission mechanism may also be a chain drive mechanism or a gear drive mechanism, etc.

[0060] like Figure 5 and Figure 6 As shown, in some embodiments, the bearing unit 220 further includes a bearing mounting base 221, and the tool mounting unit 210 has a first mounting hole 211 and a second mounting hole 212. The axis of the first mounting hole 211 and the axis of the second mounting hole 212 are arranged parallel to each other. The first end of the bearing mounting base 221 is coaxially inserted through the first mounting hole 211. The first end of the bearing mounting base 221 and the first mounting hole 211 are rotatably engaged. The second end of the bearing mounting base 221 has an axially penetrating hole. The one-way needle roller bearing 222 is coaxially arranged with the axial hole. The transmission shaft 110 is also slidably inserted through the axial hole.

[0061] The cutting unit 230 also includes a rotating shaft 240, which is coaxially inserted through the second mounting hole 212. The rotating shaft 240 and the second mounting hole 212 are rotatably engaged, and the rotating shaft 240 and the cutting disc 231 are coaxially connected.

[0062] In these embodiments, the bearing unit 220 includes a bearing mounting base 221, the first end of which coaxially passes through the first mounting hole 211 of the tool mounting unit 210 and rotatably engages with the first mounting hole 211. This means that the bearing mounting base 221 can rotate freely within the first mounting hole 211. For example, the wall of the first mounting hole 211 is connected to the first end via a rotating shaft 240 to ensure rotational balance and low resistance.

[0063] The bearing mounting base 221 has an axially penetrating hole at its second end, and a one-way needle roller bearing 222 is coaxially disposed within this axial hole. The drive shaft 110 slides through this axial hole and is connected to the bearing mounting base 221 via the one-way needle roller bearing 222. The first end and the second end are positioned opposite each other.

[0064] The tool mounting unit 210 has two parallel mounting holes, namely a first mounting hole 211 and a second mounting hole 212. The first mounting hole 211 is used to accommodate the first end of the bearing mounting seat 221, while the second mounting hole 212 is used for the rotating shaft 240 of the cutting unit 230.

[0065] The cutting unit 230 also includes a rotating shaft 240, which is coaxially inserted through the second mounting hole 212 of the cutter mounting unit 210 and rotatably engaged with the second mounting hole 212. The rotating shaft 240 is coaxially connected to the cutting disc 231, so that when the rotating shaft 240 rotates, it can drive the cutting disc 231 to rotate synchronously to perform the cutting operation.

[0066] In addition, by pre-setting the first mounting hole 211 and the second mounting hole 212 in the tool mounting unit 210, the coaxiality of the drive shaft 110 and the cutting blade disc 231 is limited, which helps to improve the parallelism between the cutting blade discs 231.

[0067] like Figure 5 As shown, in some embodiments, one end face of the rotating shaft 240 is a mounting end face 242, and the mounting end face 242 is perpendicular to the axis of the rotating shaft 240. The mounting end face 242 and one side of the cutting disc 231 are in contact and fit together.

[0068] In these embodiments, the connection between the rotating shaft 240 and the cutting disc 231 is further refined. The perpendicularity of the cutting disc 231 and the rotating shaft 240 is ensured to cooperate with the tool mounting unit 210 and ensure the parallelism of the multiple cutting tools.

[0069] One end of the rotating shaft 240 is provided with a mounting end face 242, which is perpendicular to the axis of the rotating shaft 240. This means that the mounting end face 242 is a flat surface, suitable for a firm contact and fit with the cutting blade disc 231.

[0070] The mounting end face 242 directly abuts against one side of the cutting blade disc 231 to ensure close contact between the two, thereby ensuring that no relative sliding or displacement occurs during rotation.

[0071] Clearly, by abutting and fitting the mounting end face 242 of the rotating shaft 240 against the side of the cutting disc 231, the structural stability of the entire cutting assembly is enhanced, reducing deviations caused by vibration or high-speed rotation. Furthermore, this precise and stable connection helps maintain the accurate positioning of the cutting disc 231 during operation, improving cutting quality and consistency.

[0072] In addition, the design of the mounting end face 242 directly abutting and fitting with the cutting blade disc 231 makes the assembly process simpler and faster, and accurate installation can be achieved without complicated calibration steps.

[0073] like Figure 4 and Figure 5As shown, in some embodiments, the cutting unit 230 further includes a clamping member 233 and at least two fasteners 232. The at least two fasteners 232 are spaced apart around the cutting disc 231. The fasteners 232 are sequentially inserted through the fastening holes of the clamping member 233 and the through holes on the cutting disc 231, and are connected to the rotating shaft 240, so that the clamping member 233 and the rotating shaft 240 are connected. The clamping member 233 has a pressing end face, which abuts against the side of the cutting disc 231 opposite to the mounting end face 242. The pressing end face has an annular groove, which is coaxially arranged with the cutting disc 231. An elastic washer 250 is installed in the annular groove, and the elastic washer 250 elastically abuts against the corresponding side of the cutting disc 231.

[0074] These embodiments further refine the cutting unit 230 by adding a clamping element 233 and an elastic washer 250 to ensure the cutting disc 231 is securely installed and to provide some cushioning to protect the equipment and improve cutting accuracy.

[0075] The clamping member 233 has a pressing end face that abuts against and fits against the side of the cutting disc 231 opposite to the mounting end face 242. An annular groove is provided on the pressing end face, and an elastic washer 250 is installed within the groove. For example, the clamping member 233 may be a cap, a pressure block, etc. Furthermore, the shape of the clamping member 233 may be circular, square, or polygonal, etc.

[0076] The elastic washer 250 is located within the annular groove and elastically abuts against the corresponding side of the cutting disc 231. This design provides additional cushioning, helps absorb vibrations and reduce wear, while ensuring the stability and flatness of the cutting disc 231 during operation.

[0077] At least two fasteners 232 are spaced apart around the cutting disc 231, passing sequentially through the fastening holes of the clamping member 233 and the through holes on the cutting disc 231, and finally connected to the rotating shaft 240. In this way, the clamping member 233 is firmly fixed to the rotating shaft 240, while simultaneously pressing the cutting disc 231 tightly against the mounting end face 242. For example, in this embodiment, the number of fasteners 232 is three. Of course, in other embodiments, the number of fasteners 232 may be two, four, five, six, seven, or eight, etc.

[0078] For example, fastener 232 is a fastening bolt. Of course, fastener 232 can also be a fastening screw. Alternatively, fastener 232 includes a stud and a fastening nut, one end of which is threaded to the rotating shaft 240, and the other end of which is threaded to the fastening nut.

[0079] Therefore, by using clamping elements 233 and fasteners 232 to firmly fix the cutting disc 231 onto the rotating shaft 240, it is ensured that the cutting disc 231 will not shift or loosen during high-speed rotation, thus improving the stability and reliability of the system. Furthermore, the application of the elastic washer 250 provides necessary cushioning for the system, effectively absorbing vibrations during operation, reducing damage to the cutting disc 231 and other components, and extending the service life of the equipment.

[0080] Furthermore, since the cutting disc 231 is tightly fixed and cushioned by the clamping member 233 and the elastic washer 250, it can maintain higher flatness and stability during operation, thereby significantly improving cutting quality and consistency.

[0081] like Figure 4 and Figure 5 As shown, in some embodiments, the mounting end face 242 is formed with a positioning part 241, the positioning part 241 and the rotating shaft 240 are coaxially arranged, the clamping member 233 has a positioning hole, the positioning part 241 passes through the center hole of the cutting blade disk 231 and the positioning hole of the clamping member 233, and the positioning part 241 is clearance-fitted with the positioning hole of the clamping member 233 and the center hole of the cutting blade disk 231 respectively.

[0082] In these embodiments, more precise component alignment and installation are achieved through the positioning part 241 and the corresponding hole. The positioning part 241 is formed on the mounting end face 242 of the rotating shaft 240, and is coaxially arranged with the rotating shaft 240. The function of this positioning part 241 is to provide a precise positioning reference point during assembly, ensuring that the cutting blade 231 and the clamping member 233 can be accurately aligned with the rotating shaft 240.

[0083] The clamping member 233 is provided with a positioning hole for engaging with the positioning part 241 on the rotating shaft 240. Specifically, the positioning part 241 passes through the central hole of the cutting blade disc 231 and the positioning hole of the clamping member 233, and the positioning part 241 is connected to both of them with a clearance fit. This means that the positioning part 241 can rotate freely within these holes, while ensuring precise alignment between all components.

[0084] Therefore, the design of the positioning part 241 and the positioning hole ensures that the cutting blade disc 231 and the clamping member 233 maintain precise coaxiality with the rotating shaft 240 during installation, thereby reducing vibration or wear caused by misalignment and improving system stability and cutting accuracy. Although this increases the requirements for the positioning part 241 and the positioning hole, this design actually simplifies the assembly process by providing clear alignment guidance, reducing the need for manual adjustments, and improving assembly efficiency.

[0085] When the cutting disc 231 needs to be replaced or repaired, this design also makes disassembly easier, as all components can be quickly aligned via the positioning part 241, reducing recalibration time.

[0086] For example, in this embodiment, one end of the rotating shaft 240 is provided with a stepped shaft, the smaller diameter end forms a positioning part 241, and the shaft shoulder forms a mounting end face 242. Of course, in other embodiments, the rotating shaft 240 and the positioning part 241 are coaxially and detachably connected.

[0087] like Figure 1 As shown, in some embodiments, the tool module further includes a guide rail unit, which is slidably connected to the tool mounting unit 210, and the guide rail unit and the drive shaft 110 extend in the same direction.

[0088] In these embodiments, the cutter module incorporates a guide rail unit, which provides the cutter mounting unit 210 with the ability to slide in a specific direction (i.e., in the same direction as the drive shaft 110). The guide rail unit is directly slidably connected to the cutter mounting unit 210, meaning that the cutter mounting unit 210 can move smoothly along the guide rail unit. This design allows the cutting blade assembly 200 to be easily adjusted in position or spacing when not in use to accommodate different cutting needs.

[0089] The sliding support provided by the guide rail unit reduces the load on the drive shaft 110, allowing the tool mounting unit 210 to be adjusted on a very fine scale, ensuring that the spacing between each cutting blade assembly 200 meets extremely high precision requirements. This is particularly important for applications requiring high-precision cutting.

[0090] Furthermore, since the fit between the drive shaft 110 and the one-way needle roller bearing 222 is relatively high, the guide rail unit does not need to use high-precision guide rails; ordinary guide rails can be used, effectively reducing costs.

[0091] like Figure 1 As shown, in some embodiments, the cutter module further includes a spacing adjustment unit 300. The spacing adjustment unit 300 includes a helical rack 320, at least two helical gears, and at least two second drive units 310. The helical rack 320 and the drive shaft 110 extend in the same direction. Each cutter assembly 200 has a cutter mounting unit 210 with a second drive unit 310. The second drive unit 310 is connected to a helical gear and is used to drive the corresponding helical gear to rotate. The helical gear meshes with the helical rack 320.

[0092] In these embodiments, the functionality of the cutting tool module is further enhanced by introducing a spacing adjustment unit 300 to achieve precise adjustment of the spacing between the cutting blade assemblies 200.

[0093] The helical rack 320 extends in the same direction as the drive shaft 110, providing a fixed reference track for the entire pitch adjustment system.

[0094] Each cutting blade assembly 200 has a blade mounting unit 210 equipped with a second drive unit 310 connected to a helical gear. The second drive unit 310 drives the corresponding helical gear to rotate, and the helical gear meshes with the helical rack 320.

[0095] When the spacing between the cutting blade assemblies 200 needs to be adjusted, the second drive unit 310 is activated and drives the helical gear connected to it to rotate along the helical rack 320. Due to the meshing between the helical gear and the helical rack 320, this rotational motion is converted into linear movement of the cutter mounting unit 210 along the guide rail direction (i.e., in the same direction as the drive shaft 110). By precisely controlling the operation of each second drive unit 310, fine adjustment of the spacing between different cutting blade assemblies 200 can be achieved.

[0096] Clearly, the precise coordination of the helical gears and racks 320 enables highly accurate spacing adjustment to meet the needs of various cutting tasks. Furthermore, each cutting blade assembly 200 is equipped with an independent second drive unit 310, meaning the position of each cutting blade can be adjusted individually, offering exceptional flexibility. Simultaneously, the automatic spacing adjustment operation via the second drive unit 310 reduces the need for manual intervention and improves work efficiency.

[0097] Furthermore, it should be noted that the helical gear and helical rack 320 work together to bear part of the load of the cutting blade assembly 200, as well as support the drive shaft 110 and reduce the degree of deformation of the drive shaft 110.

[0098] In some embodiments, this application also provides a longitudinal cutting device, which includes a cutting tool module as described in any of the above embodiments.

[0099] Since the aforementioned tool module has the above-mentioned technical effects, the longitudinal cutting device including the tool module should have the same technical effects, which will not be elaborated here.

[0100] In some embodiments, this application also provides a printer that includes a longitudinal cutting device as described in the above embodiments.

[0101] Since the aforementioned longitudinal cutting device has the aforementioned technical effects, the printer that includes the longitudinal cutting device should have the same technical effects, which will not be elaborated here.

[0102] For example, the printer can be an industrial printer, a label printer, a packaging industry printer, or an office and home printer, etc.

[0103] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0104] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0105] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A tool module, characterized in that The tool module includes: The transmission assembly includes a transmission shaft; At least two cutting blade assemblies, each comprising a blade mounting unit, a bearing unit, and a cutting blade unit, wherein the bearing unit and the cutting blade unit are both disposed in the blade mounting unit, the bearing unit having a one-way needle roller bearing, the drive shaft slidingly passing through the inner hole of the one-way needle roller bearing, and the needles of the one-way needle roller bearing all contacting the drive shaft.

2. The tool module according to claim 1, characterized in that The transmission assembly further includes a first drive unit, which is connected to the transmission shaft and is used to drive the transmission shaft to rotate. The cutting unit has a cutting disc, which is rotatably connected to the tool mounting unit. The bearing unit is rotatably connected to the tool mounting unit, so that the bearing unit can rotate around a preset axis. The preset axis is collinear with the axis of the one-way needle roller bearing. The cutting disc is also drivenly connected to the one-way needle roller bearing.

3. The tool module according to claim 2, characterized in that The bearing unit further includes a bearing mounting base. The tool mounting unit has a first mounting hole and a second mounting hole. The axis of the first mounting hole and the axis of the second mounting hole are arranged parallel to each other. The first end of the bearing mounting base is coaxially inserted through the first mounting hole. The first end of the bearing mounting base and the first mounting hole are rotatably engaged. The second end of the bearing mounting base has an axially penetrating hole. The one-way needle roller bearing is coaxially arranged with the axial hole. The drive shaft also slides through the axial hole. The cutting unit also includes a rotating shaft, which is coaxially inserted through the second mounting hole. The rotating shaft and the second mounting hole are rotatably engaged, and the rotating shaft and the cutting disc are coaxially connected.

4. The tool module according to claim 3, characterized in that One end face of the rotating shaft is a mounting end face, which is perpendicular to the axis of the rotating shaft, and the mounting end face is in contact with one side of the cutting disc.

5. The tool module according to claim 4, characterized in that The cutting unit further includes a clamping member and at least two fasteners. The at least two fasteners are spaced apart around the cutting disc. The fasteners are sequentially inserted through the fastening holes of the clamping member and the through holes on the cutting disc, and are connected to the rotating shaft, so that the clamping member and the rotating shaft are connected. The clamping member has a pressing end face, and the pressing end face and the side of the cutting disc opposite to the mounting end face abut against each other. The extrusion end face has an annular groove, which is coaxially arranged with the cutting disc. An elastic washer is installed in the annular groove, and the elastic washer elastically abuts against the corresponding side of the cutting disc.

6. The tool module according to claim 5, characterized in that The mounting end face has a positioning part, the positioning part and the rotating shaft are coaxially arranged, the clamping member has a positioning hole, the positioning part passes through the center hole of the cutting blade and the positioning hole of the clamping member, and the positioning part is respectively clearance-fitted with the positioning hole of the clamping member and the center hole of the cutting blade.

7. The tool module of claim 1, wherein, The tool module also includes a guide rail unit, which is slidably connected to the tool mounting unit, and the guide rail unit and the drive shaft extend in the same direction.

8. The tool module of claim 1, wherein, The tool module further includes a spacing adjustment unit, which includes a helical rack, at least two helical gears, and at least two second drive units. The helical rack and the transmission shaft extend in the same direction. Each tool mounting unit of the cutting tool assembly is provided with a second drive unit. The second drive unit is connected to a helical gear. The second drive unit is used to drive the corresponding helical gear to rotate. The helical gear meshes with the helical rack.

9. A slitting apparatus characterized by, The longitudinal cutting device includes the tool module as described in any one of claims 1 to 8.

10. A printer characterized by comprising: The printer includes the longitudinal cutting device as described in claim 9.

Images