A cutting machine head

Abstract

A cutting machine head, comprising a mounting bracket, a cutter seat, a cutting mechanism, a punching mechanism, a brush and an ink jet assembly, the cutting mechanism and the punching mechanism are arranged adjacent to each other on the cutter seat, the brush is vertically arranged on the cutter seat, and the ink jet assembly is independently arranged on the mounting bracket and the nozzle is directed to the material to be cut. Since the ink jet assembly marks in a non-contact manner, it avoids problems such as uneven line thickness and broken lines caused by uneven material texture and elastic deformation, and improves the clarity of the mark. It is suitable for processing materials with holes, and can flexibly position and mark before and after punching to prevent alignment deviation caused by material displacement and damage caused by the brush end touching the hole edge. At the same time, the brush and the ink jet assembly can be used for contact fine drawing or non-contact rapid marking as needed, and the functions are complementary, which effectively improves the processing adaptability and marking operation efficiency of the head, and solves the problems of insufficient marking accuracy of the existing cutting head and poor adaptation to materials with holes.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine equipment technology, and specifically to a cutting machine head. Background Technology

[0002] Cutting machines are widely used automatic cutting equipment in industries such as textiles and apparel, leather processing, automotive seating, and furniture manufacturing. They primarily rely on data set by computer-aided design to control the movement trajectory of the cutting blades to obtain the required cut pieces. Early cutting machines could only cut along pre-stored fixed trajectories, resulting in low cutting efficiency and susceptibility to limitations imposed by material feeding accuracy. With technological advancements, composite processing heads integrating marking, punching, and cutting functions have gradually emerged to meet the demands for efficient and precise processing of flexible materials.

[0003] For example, the Chinese utility model patent "A Multifunctional Cutting Head for Leather Cutting" disclosed in application number 202223038278.7 (authorization announcement number CN218699196U) improves the adjustability of cutting width and the wear resistance of blades by setting size control components and constant temperature heating plates, which to a certain extent improves the problems of insufficient cutting accuracy and easy wear of blades in traditional cutting heads.

[0004] However, most of these cutting heads are only equipped with contact-type pen-drawing marking units, lacking integrated contactless inkjet marking functionality. The marking process relies on direct contact between the pen tip and the material, with the motion control system driving the pen tip to complete the trajectory drawing. Due to the uneven texture and elastic deformation of flexible materials such as leather and fabric, fluctuations in contact pressure during the pen-drawing process can easily lead to uneven line thickness, broken lines, or blurring, affecting the clarity of the markings. Especially when processing materials that have already been punched or require simultaneous punching, pen-drawing cannot achieve non-contact positioning and must be performed after punching. This can easily cause misalignment between the marking and the hole position due to material displacement, or even damage to the material from the pen tip touching the hole edge. Furthermore, pen-drawing is a point-by-point, line-by-line operation, which is inefficient and difficult to adapt to the production pace of long or batch-produced workpieces, limiting the improvement of overall processing efficiency and automation levels.

[0005] Therefore, how to integrate non-contact inkjet marking components into existing cutting heads to solve the problems of insufficient accuracy, low efficiency, and poor adaptability to perforated materials in pen marking has become a key technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an integrated non-contact inkjet marking component that is adapted to the processing of perforated leather fabrics and has higher marking accuracy and efficiency in the head of a cutting machine.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: The head of the cutting machine includes a mounting bracket, a blade holder, a cutting mechanism, and a stamping mechanism. The blade holder is disposed on the mounting bracket, and the cutting mechanism and the stamping mechanism are disposed adjacent to each other on the blade holder. It also includes a pen and an inkjet assembly. The pen is vertically disposed on the blade holder, and the inkjet assembly is disposed independently of the blade holder on the mounting bracket, with the nozzle of the inkjet assembly facing the material to be cut.

[0008] In order to precisely control the printing distance to adapt to materials of different thicknesses and avoid blurry markings or ink splatter caused by improper spacing, preferably, the inkjet assembly is vertically and vertically mounted on the mounting bracket by a first drive component to control the distance between the nozzle and the material to be cut.

[0009] In order to achieve smooth lifting and lowering of the inkjet assembly and provide sufficient driving thrust, while simplifying the installation structure to reduce the failure rate, preferably, the mounting bracket is provided with a fixing block on its side, and the first driving component includes a cylinder, which is mounted on the fixing block, and the driving end of the cylinder is connected to the inkjet assembly.

[0010] To integrate and protect the core inkjet components, ensure reliable isolation between the circuit and the ink path, and achieve precise nozzle positioning and anti-collision protection, the inkjet assembly preferably includes a housing, a main board and an ink cartridge housed within the housing, with the nozzle located at the bottom of the ink cartridge. The bottom of the housing has a through hole corresponding to the nozzle, and the drive end of the cylinder is connected to the housing.

[0011] In order to expand the coverage of the inkjet markings and avoid interference between ink cartridges through staggered layout, preferably, there are multiple ink cartridges, which are arranged at intervals on the left and right sides and form a stepped staggered distribution in the front and back direction to jointly form an overlapping inkjet area.

[0012] To improve the positioning accuracy and overall stability of the ink cartridge installation, avoid nozzle displacement due to vibration, and facilitate centralized maintenance and quick disassembly, preferably, the housing is provided with a base plate that fits against its bottom wall, and each ink cartridge is installed on the base plate. The base plate has multiple through holes for exposing the nozzles of each ink cartridge.

[0013] To facilitate quick replacement and maintenance of ink cartridges and reduce maintenance downtime, preferably, the side of the housing is provided with an opening, through which each ink cartridge is partially exposed.

[0014] In order to achieve precise pressure control of the brush, adapt to the contact marking requirements of different materials, and at the same time maintain the compact structure and synchronous movement of the head, preferably, the blade holder is mounted on the mounting bracket by means of a second driving component, and the brush moves up and down synchronously with the blade holder.

[0015] To meet the requirements of multi-color marking or wide-width parallel marking and improve the marking efficiency of a single processing stroke, preferably, there are at least two pens, and each pen is arranged at intervals on the tool holder along a direction parallel to the material conveying direction.

[0016] In order to optimize the utilization efficiency of the printing head space, make the working areas of contact and non-contact marking reasonably distributed, and realize the flexible switching and complementarity of marking functions, preferably, the pen and the inkjet assembly are arranged at intervals along the left and right direction, and the projections of the pen and the nozzle of the inkjet assembly on the horizontal plane are arranged side by side.

[0017] Compared with the prior art, the advantages of this utility model are as follows: By setting an inkjet component independent of the cutter holder on the mounting bracket, and making the nozzle of the inkjet component face the material to be cut, while retaining the pen on the cutter holder, the inkjet component adopts a non-contact marking method, which does not need to directly contact flexible materials such as leather and cloth. Therefore, it can avoid the problems of uneven thickness, broken lines or blurry lines caused by contact pressure fluctuations in pen drawing, thus improving the clarity of the marking. At the same time, for materials with holes, the inkjet component can achieve non-contact positioning, and can work flexibly before and after punching, avoiding the misalignment between the marking and the hole caused by material displacement, and preventing material damage caused by the pen tip touching the edge of the hole. In addition, inkjet marking does not require point-by-point and line-by-line operation. Combined with the contact marking of the pen, it forms a dual marking mode, which can adapt to different processing needs, effectively improve the processing efficiency of long or batch workpieces, and thus improve the automation level of the whole machine. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0019] Figure 2 This is a schematic diagram of the decomposed state structure of this embodiment;

[0020] Figure 3 This is a schematic diagram of the overall structure of the tool holder in this embodiment;

[0021] Figure 4 This is a three-dimensional structural diagram of the inkjet assembly in this embodiment;

[0022] Figure 5 This is a schematic diagram of the bottom view structure of the inkjet assembly in this embodiment;

[0023] Figure 6 This is a schematic diagram of the disassembled structure of the inkjet assembly in this embodiment. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Figures 1-6The figure shown is the preferred embodiment of this utility model.

[0026] The cutting machine head in this embodiment mainly includes a mounting bracket 1, a blade holder 2, a cutting mechanism 3, a stamping mechanism 4, a drawing pen 5, an inkjet assembly 6, a first driving component 7, and a second driving component 8. Through a dual marking structure of "contact drawing pen marking + non-contact inkjet marking", combined with the independent setting of the inkjet assembly and the blade holder, and the cooperative operation between multiple components, it effectively solves the problems of insufficient pen marking accuracy, poor adaptability to materials with holes, and low efficiency in the prior art. At the same time, it integrates cutting and stamping functions to meet the needs of efficient and precise processing of flexible materials.

[0027] The structure and connection relationship of each component in this embodiment are as follows:

[0028] Mounting bracket 1: Reference Figure 1 and Figure 2 As shown, the mounting bracket 1 is the core load-bearing component of this embodiment. Its overall structure takes into account both strength and lightweight. A fixing block 1a is installed on its side by fasteners or other fixing methods. Four evenly distributed bolt mounting holes are opened on the fixing block 1a in the vertical direction. The hole diameter is adapted to the mounting bolts of the first driving component 7, which is used to provide a stable mounting foundation for the first driving component 7.

[0029] Knife holder 2: Reference Figures 1 to 3 As shown, the tool holder 2 is a metal base with a vertical slider on the back that is compatible with the mounting bracket 1. It can slide up and down along the vertical guide rail preset on the mounting bracket 1. The tool holder 2 is raised and lowered by the second drive component 8. The second drive component 8 is a servo screw motor. The second drive component 8 is fixed on the mounting bracket 1. The end of the output shaft is threadedly engaged with the threaded connection seat on the tool holder 2. The screw rotation drives the tool holder 2 to make precise raising and lowering movements along the guide rail.

[0030] Cutting mechanism 3: Reference Figures 1 to 3 As shown, the cutting mechanism 3 includes a pneumatic cutter and a drive assembly. The pneumatic cutter is vertically mounted on the right side of the cutter holder 2. The drive assembly drives the pneumatic cutter to rotate and perform the cutting operation. It is suitable for flexible materials such as leather and fabric. The cutting mechanism 3 here is existing technology and will not be described in detail here.

[0031] Stamping mechanism 4: Reference Figures 1 to 3 As shown, the stamping mechanism 4 is arranged adjacent to the cutting mechanism 3 and is fixed on the left side of the knife holder 2. It includes a stamping connecting rod, a rotary motor and a synchronous wheel assembly. The rotary motor drives the stamping connecting rod to rotate through the synchronous wheel assembly and cooperates with the stamping action to complete the material punching operation. The stamping mechanism 4 here is also the prior art and will not be described in detail here.

[0032] Brush 5: Reference Figure 3As shown, the pen 5 has a metal barrel with a hollow interior containing a pen core assembly. The pen 5 is vertically mounted on the cutter holder 2, located to the left of the cutting mechanism 3. The pen 5 is connected to the cutter holder 2 via a ring-shaped clamping sleeve, which is secured by bolts. The vertical height of the pen 5 can be adjusted. In this embodiment, there are two pens 5, which are spaced apart in the left-right direction and can move up and down synchronously with the cutter holder 2, allowing for simultaneous contact marking of two parallel trajectories.

[0033] Inkjet Component 6: Reference Figures 4 to 6 As shown, the inkjet assembly 6 is mounted independently of the blade holder 2 on the mounting bracket 1, and includes a housing 6b, a main board 6c, ink cartridges 6d, and a base plate 6e. The housing 6b is a rectangular box with an opening 6b2 on the side and a through hole 6b1 at the bottom corresponding to the nozzle 6a. The main board 6c is a PCB circuit board, fixed to the side wall of the housing 6b with screws, and integrates an inkjet control chip and a power interface. It is electrically connected to the ink cartridge 6d via wires and can control the inkjet switch and inkjet volume of the ink cartridge 6d. The base plate 6e is a rectangular metal plate, fitted to the bottom wall of the housing 6b and fixed to the housing 6b with bolts. The base plate 6e has two through holes 6e1, one for each ink cartridge 6d's nozzle 6a to be exposed. The aperture is adapted to the nozzle 6a; in this embodiment, there are two ink cartridges 6d, which are fastened to the base plate 6e. The ink cartridges 6d are arranged at intervals in the left-right direction and form a stepped staggered distribution in the front-back direction, which refers to the conveying direction of the material to be cut; the nozzle 6a of each ink cartridge 6d passes through the through hole 6e1 of the base plate 6e and the through hole 6b1 at the bottom of the housing 6b, facing the material to be cut; at the same time, each ink cartridge 6d is partially exposed through the opening 6b2 on the side of the housing 6b, which is convenient for replacement and maintenance.

[0034] First driving component 7: Reference Figure 1 and Figure 4 As shown, the first driving component 7 includes a cylinder 7a, which is a small pneumatic cylinder. It is fixed to the fixing block 1a on the side of the mounting bracket 1 by bolts. The driving end 7a1 of the cylinder 7a is connected to the side of the housing 6b of the inkjet assembly 6, and can drive the inkjet assembly 6 to rise and fall in the vertical direction to control the distance between the nozzle 6a and the material to be cut.

[0035] Spatial relationship: Reference Figure 1 As shown, the pen 5 and the inkjet assembly 6 are arranged at intervals along the left and right directions, and the projections of the pen 5 and the nozzle 6a of the inkjet assembly 6 on the horizontal plane are arranged side by side to ensure that the positions of the contact mark and the non-contact inkjet mark are accurately corresponding.

[0036] The working principle of the cutting machine head in this embodiment is explained as follows:

[0037] 1. Material preparation and positioning: Place the material to be cut (such as leather) on the conveyor platform below the machine head in the preset conveying direction. The positioning mechanism of the conveyor platform achieves precise positioning of the material, ensuring that the material processing area is within the working range of the machine head.

[0038] 2. Mark job switching and execution:

[0039] Inkjet marking (non-contact): When processing materials with holes or requiring large-area continuous marking, the cylinder 7a of the first drive unit 7 is activated to adjust the height of the inkjet assembly 6 so that the nozzle 6a maintains a preset distance from the material surface; the external control system sends a command to the main board 6c, which controls two staggered ink cartridges 6d to start synchronously. The ink is ejected through the nozzle 6a. Due to the staggered distribution of the ink cartridges 6d, the nozzle 6a forms an overlapping spray area, realizing fast, non-contact marking on the material surface and avoiding material damage or displacement caused by pen tip contact.

[0040] Pen marking (contact type): When fine local marking is required, the servo screw motor of the second drive unit 8 is activated, driving the cutter head 2 to move downward, which in turn drives the two pens 5 to move downward synchronously until the pen tips contact the material surface; then, the external control system drives the cutter head 2 to move along a preset trajectory, and the pens 5 draw fine marking lines on the material surface. The two pens 5 work at the same time, improving the efficiency of contact marking.

[0041] 3. Ink cartridge replacement and maintenance: When the ink in ink cartridge 6d is exhausted, there is no need to disassemble the housing 6b. Simply remove the old ink cartridge 6d through the opening 6b2 on the side of the housing 6b, and install the new ink cartridge 6d on the base plate 6e using the clips. The replacement is easy to perform and reduces equipment downtime.

[0042] It should be noted that in the description of this embodiment, the terms "upper," "lower," "front," "rear," "horizontal," "vertical," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installation," "connection," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A cutting machine head, comprising a mounting bracket (1), a blade holder (2), a cutting mechanism (3), and a stamping mechanism (4), wherein the blade holder (2) is disposed on the mounting bracket (1), and the cutting mechanism (3) and the stamping mechanism (4) are disposed adjacent to each other on the blade holder (2), characterized in that: It also includes a pen (5) and an inkjet assembly (6). The pen (5) is vertically mounted on the cutter holder (2). The inkjet assembly (6) is mounted on the mounting bracket (1) independently of the cutter holder (2), and the nozzle (6a) of the inkjet assembly (6) faces the material to be cut.

2. The cutting head of the cutting machine according to claim 1, characterized in that: The inkjet assembly (6) is mounted on the mounting bracket (1) in a height-reducing manner via the first drive member (7) to control the distance between the nozzle (6a) and the material to be cut.

3. The cutting head of the cutting machine according to claim 2, characterized in that: The mounting bracket (1) has a fixing block (1a) on its side. The first driving member (7) includes a cylinder (7a). The cylinder (7a) is mounted on the fixing block (1a). The driving end (7a1) of the cylinder (7a) is connected to the inkjet assembly (6).

4. The cutting head of the cutting machine according to claim 3, characterized in that: The inkjet assembly (6) includes a housing (6b), a main board (6c) disposed inside the housing (6b), and an ink cartridge (6d). The nozzle (6a) is located at the bottom of the ink cartridge (6d). The bottom of the housing (6b) has a through hole (6b1) corresponding to the nozzle (6a). The drive end (7a1) of the cylinder (7a) is connected to the housing (6b).

5. The cutting head of the cutting machine according to claim 4, characterized in that: Multiple ink cartridges (6d) are provided, and the multiple ink cartridges (6d) are arranged at intervals from left to right and form a stepped staggered distribution in the front-back direction to jointly form an overlapping spray area.

6. The cutting head of the cutting machine according to claim 4, characterized in that: The housing (6b) has a base plate (6e) attached to its bottom wall. Each ink cartridge (6d) is mounted on the base plate (6e). The base plate (6e) has a plurality of through holes (6e1) for exposing the nozzles (6a) of each ink cartridge (6d).

7. The cutting head of the cutting machine according to claim 4, characterized in that: The housing (6b) has an opening (6b2) on its side, through which each ink cartridge (6d) is partially exposed.

8. The cutting head of the cutting machine according to any one of claims 1 to 7, characterized in that: The blade holder (2) is mounted on the mounting bracket (1) by moving up and down via the second driving member (8), and the pen (5) moves up and down synchronously with the blade holder (2).

9. The cutting head of the cutting machine according to claim 8, characterized in that: There are at least two paintbrushes (5), and each paintbrush (5) is arranged at intervals on the knife holder (2) along a direction parallel to the material conveying direction.

10. The cutting head of the cutting machine according to claim 8, characterized in that: The pen (5) and the inkjet assembly (6) are arranged at intervals in the left-right direction, and the projections of the nozzles (6a) of the pen (5) and the inkjet assembly (6) on the horizontal plane are arranged side by side.

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