An integrated inkjet cutting device and system for an inkjet off-line machine

Abstract

The utility model discloses an integrated code spraying and cutting device and system for code spraying offline machine relates to the field of automobile wiring harness processing, aims at solving the problem of tail material waste caused by the dispersion of the existing code spraying and cutting equipment. The device comprises a tool, an integrated code spraying device and a cutting device fixed on the tool, and also comprises a wire positioning mechanism and an ink receiving box. The wire path length between the nozzle of the code spraying device and the cutting edge of the cutting device is 50-150 mm. The tool is rigidly fixed through a vertical plate, a horizontal plate and a positioning reinforcing rib. The wire positioning mechanism ensures the centering of the wire and the nozzle. A double-cylinder drive cutter realizes the flat cutting of the wire, and the ink receiving box collects ink to prevent pollution. The device eliminates the waste of wire tail materials, improves the accuracy of code spraying and the quality of cutting, and simplifies maintenance. The automobile wiring harness processing system contains the device, which reduces production cost and meets the efficient processing demand.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness processing technology, specifically to an integrated inkjet cutting device for an inkjet printing off-line machine. Background Technology

[0002] In the automotive manufacturing industry, automotive wiring harnesses serve as the "nerve vessels" connecting various electrical components of a vehicle. Their processing quality and efficiency directly impact the overall vehicle production schedule and the reliability of the electrical system. With the increasing trend towards intelligent and electrified vehicles, the number and specifications of wires in a single vehicle's wiring harness have significantly increased, placing higher demands on the coding accuracy, cutting quality, and production continuity of the wiring harness.

[0003] Previously, mainstream inkjet printing machines in the industry generally adopted a separate structure where the inkjet printing device and the cutting device were independently set up. This non-integrated design resulted in the following: when changing to the next wire number, there was a section of wire with the previous wire number between the inkjet printing device and the cutting device. After changing to the next wire number, this section of wire with the printed wire number needed to be cut off, resulting in waste of raw materials. The distance between the traditional inkjet printing device and the cutting device was 650mm-800mm. Based on a complete vehicle wiring harness, this resulted in the waste of more than 100 meters of wire. Not only did this cause a large loss of raw materials, but the collection, storage, and disposal of waste materials also required additional manpower and space costs, further increasing the production burden. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated inkjet cutting device and system for inkjet printing line machines, which shortens the design distance between the printhead and the cut, can eliminate the waste of inkjet printing line tail material, and save resources and costs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: This utility model provides an integrated inkjet cutting device for inkjet printers, comprising: tooling; The inkjet printing device is integrated and fixed on the tooling and is used to print ink on the wires located below it. A cutting device, integrated and fixed on the tooling, is used to cut the wires after inkjet printing; The length of the wire path between the printhead of the inkjet printer and the cut of the cutting device is 50-150mm.

[0006] As a preferred embodiment of this utility model, the tooling includes: The vertical plate has a first mounting hole for mounting the inkjet printer. A horizontal plate is fixedly connected to the vertical plate and has a second mounting hole for installing the cutting device; The positioning reinforcing ribs are fixedly connected to the vertical plate and the horizontal plate respectively, and are used for positioning the inkjet printing device.

[0007] As a preferred embodiment of this utility model, the cutting-off device includes: Equipment connection bracket; The upper cutting blade assembly is disposed on the upper part of the device connection bracket; The lower cutter assembly is located at the lower part of the device connection bracket and is used to cooperate with the upper cutter assembly to cut the wire.

[0008] As a preferred technical solution of this utility model, the upper cutting blade assembly includes an upper cylinder, an upper push rod, an upper push block, and an upper cutting blade. The top of the upper cylinder is fixed to the second mounting hole on the tooling, and the bottom is fixed to the top of the equipment connecting bracket. The upper cylinder is driven to the upper push block through the upper push rod. The upper cutting blade is disposed at the bottom of the upper push block with the cutting edge facing downward.

[0009] As a preferred embodiment of this utility model, the lower cutting blade assembly includes a lower cylinder, a lower push rod, a lower push block, and a lower cutting blade. The top of the lower cylinder is fixed to the bottom of the device connecting bracket. The lower cylinder is drivenly connected to the lower push block through the lower push rod. The lower cutting blade is disposed on the top of the lower push block with its cutting edge facing upward.

[0010] As a preferred embodiment of this utility model, it also includes a wire positioning mechanism for guiding and positioning the wire to keep it aligned with the nozzle.

[0011] As a preferred technical solution of this utility model, the wire positioning mechanism includes a support plate, one end of which has an elongated hole, which is connected to a fixed bracket set on the equipment connection bracket by a fixing pin, and the other end of the support plate is provided with a wire positioning wheel for wire positioning.

[0012] As a preferred embodiment of this utility model, it also includes an ink cartridge located below the printhead, the ink cartridge being fixed to the support plate by an ink cartridge bracket.

[0013] As a preferred embodiment of this utility model, the wire path length between the printhead of the inkjet printer and the cut of the cutting device is 100mm.

[0014] This utility model also provides an automotive wiring harness processing system, including the aforementioned integrated inkjet cutting device.

[0015] Compared with the prior art, this utility model has the following advantages: 1. Existing technologies use separate inkjet printing and cutting devices, resulting in excessively large distances between the printhead and the cut. Based on calculations for whole-vehicle wiring harness processing, this leads to over 100 meters of wasted wire per production run. This invention addresses this by using a rigid integrated carrier and precisely optimized spacing. A stable fixture composed of a vertical plate, a horizontal plate, and positioning reinforcing ribs forms the core, rigidly connecting the inkjet printing device (fixed via the first mounting hole) and the cutting device (fixed via the second mounting hole). This ensures long-term stability of their relative positions and avoids uncontrollable spacing due to dispersed equipment. The wire path length between the printhead and the cutting device cut is shortened to 50-150mm (preferably 100mm), significantly less than the waste in existing technologies. This represents a shift from a "distributed" to an "integrated" design, completely eliminating wire waste and substantially reducing costs.

[0016] 2. This utility model adopts a dual design of tooling positioning and wire positioning, ensuring precise positioning of the coding device: the tooling's positioning reinforcing ribs are machined with a "positioning plane," which the coding device fits into during installation, ensuring the printhead axis is perpendicular to the wire path; simultaneously, the first mounting hole allows for fine-tuning of the printhead height via bolts, precisely controlling the distance between the coding area and the wire; dynamic wire alignment: the wire positioning mechanism achieves dynamic positioning through "elongated hole adjustment + wire positioning wheel"—the elongated hole allows for fine-tuning of the support plate position in the horizontal direction, adapting to wires of different diameters; the arc surface of the positioning wheel fits into the wire, preventing wire offset and ensuring the deviation between the wire axis and the printhead coding center is ≤0.3mm. This multi-positioning mechanism ensures coding accuracy, improves the reliability of wire number recognition, and reduces assembly errors.

[0017] 3. The cutting device of this utility model adopts a symmetrical design of "upper cutting blade assembly + lower cutting blade assembly". The upper cutting blade is driven by the upper cylinder through the upper push rod, and the lower cutting blade is driven by the lower cylinder through the lower push rod. The two cylinders respond synchronously (response time ≤ 0.1s) to achieve "upper and lower cutting". The cutting blade edge is precision polished and, in conjunction with the synchronous drive, ensures that the wire is subjected to uniform force when cutting.

[0018] 4. The ink collection box of this utility model is fixed to the support plate by the ink collection box bracket and is located directly below the printhead. It is used to collect excess ink dripping and prevent pollution. The ink collection box is made of transparent PP material, and the operator can observe the ink level in real time. When the ink reaches 2 / 3 of the volume, there is no need to disassemble the inkjet printer or cut-off device. The ink collection box can be directly removed for cleaning, and the maintenance time for a single maintenance is ≤2 minutes. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the integrated inkjet coding cutoff device of this utility model.

[0020] Figure 2 This is a front structural diagram of the integrated inkjet coding cutoff device of this utility model.

[0021] Figure 3This is a schematic diagram of the left side of the integrated inkjet coding cutoff device of this utility model.

[0022] Figure 4 This is a schematic diagram of the right side of the integrated inkjet coding cutoff device of this utility model.

[0023] Figure 5 This is a three-dimensional structural diagram of the tooling of this utility model.

[0024] Figure 6 This is a three-dimensional structural diagram of the wire positioning mechanism of this utility model.

[0025] Figure 7 This is a front structural diagram of the wire positioning mechanism of this utility model.

[0026] In the diagram: 1. Tooling; 101. Vertical plate; 102. First mounting hole; 103. Horizontal plate; 104. Second mounting hole; 105. Positioning reinforcing rib; 2. Inkjet printer; 201. Printhead; 3. Cutting device; 301. Equipment connecting bracket; 302. Upper cylinder; 303. Upper push rod; 304. Upper push block; 305. Upper cutter; 306. Lower cylinder; 307. Lower push rod; 308. Lower push block; 309. Lower cutter; 4. Wire positioning mechanism; 401. Supporting horizontal plate; 402. Long hole; 403. Fixing pin; 404. Fixing bracket; 405. Wire positioning wheel; 5. Ink cartridge connector; 501. Ink cartridge bracket; 6. Wire. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present utility model. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. For those skilled in the art, the omission of certain well-known structures and their descriptions in the drawings is understandable. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present utility model.

[0028] This utility model relates to the field of automotive wiring harness processing technology, aiming to solve the core problems in existing inkjet printing machines where the inkjet printing device and cutting device are not integrated, and the distance between the printhead and the cut is too large (usually 650-800mm), resulting in waste of inkjet printing tail material when changing wire numbers and waste of over 100 meters of wire material in the entire vehicle wiring harness processing. The following, in conjunction with the appendix... Figures 1-7 This paper provides a detailed description of the specific implementation of this integrated inkjet coding cutoff device, so that those skilled in the art can clearly understand its structure, working principle and beneficial effects.

[0029] The integrated inkjet cutting device provided in this embodiment is designed with the core concept of "modular integration + spacing optimization". It integrates the functions of inkjet printing, cutting, positioning and ink collection into the same tooling 1, and shortens the path length of the wire 6 between the printhead 201 of the inkjet printing device 2 and the cut of the cutting device 3 to 50-150mm (preferably 100mm), thereby fundamentally eliminating waste of tail material.

[0030] like Figures 1-4 As shown, an integrated inkjet cutting device for an inkjet printer includes: a fixture 1, an inkjet printer 2, a cutting device 3, a lead wire positioning mechanism 4, and an ink cartridge 5. The fixture 1 serves as the core support structure, rigidly fixing the inkjet printer 2 and the cutting device 3 together. The lead wire positioning mechanism 4 ensures precise alignment of the lead wire 6 with the printhead 201. The ink cartridge 5 collects ink to prevent contamination. All components work together to achieve an integrated "inkjet printing-positioning-cutting-cleaning" operation.

[0031] In some embodiments, tooling 1 serves as the core carrier for integrated support and precise positioning.

[0032] like Figure 5 As shown, fixture 1 adopts a triangular stabilizing structure of "vertical plate-horizontal plate-reinforcing rib", specifically including vertical plate 101, horizontal plate 103 and positioning reinforcing rib 105. All three are made of steel plate and are fixed by welding or integral molding and then subjected to surface anti-rust treatment (such as galvanizing) to ensure the structural stability of long-term use.

[0033] Specifically, the vertical plate 101 is set vertically and has two first mounting holes 102. The coding device 2 is fixed to the vertical plate 101 by bolts passing through the first mounting holes 102. After installation, the nozzle 201 of the coding device 2 is vertically downward and faces the path of the wire 6 below, ensuring accurate coding direction.

[0034] Specifically, the horizontal plate 103 is set horizontally, with one end welded to the bottom of the vertical plate 101. Two second mounting holes 104 are opened on it for fixing the top of the upper cylinder 302 of the cutting device 3 with bolts, so that the cutting device 3 and the coding device 2 maintain a preset distance.

[0035] Specifically, the positioning reinforcing rib 105 is a right-angled triangle, with its two right-angled sides welded to the vertical plate 101 and the horizontal plate 103 respectively. This not only enhances the connection strength between the vertical plate and the horizontal plate, but also has a positioning plane processed on the side near the inkjet printer 2. When the inkjet printer 2 is installed, it fits against this plane to ensure that the axis of the printhead 201 is perpendicular to the horizontal direction of the horizontal plate 103, thus avoiding inkjet offset caused by the tilt of the inkjet printer.

[0036] In some embodiments, the inkjet printer 2 serves as an execution unit for efficient and accurate inkjet printing.

[0037] Specifically, the coding device 2 uses a piezoelectric printhead 201, which features a coding resolution of 300 DPI and a coding speed of 1-5 m / s, and is compatible with the PVC insulated wires 6 commonly used in automotive wiring harnesses. After being fixed by the vertical plate 101 of the fixture 1, the distance between the coding area of ​​the printhead 201 and the wire 6 is controlled at 2-3 mm (which can be finely adjusted by the bolt in the first mounting hole 102) to ensure clear coding without smudging.

[0038] Compared to the independently set inkjet printing device in the prior art, in this embodiment, the inkjet printing device 2 is rigidly integrated with the tooling 1, which avoids the displacement of the printhead caused by equipment vibration. The inkjet printing position deviation is controlled within ±0.5mm, which is far better than the industry standard of ±2mm, and improves the accuracy of wire number recognition (especially in the subsequent wire harness assembly, reducing the misassembly caused by blurred wire numbers).

[0039] In some embodiments, the cutting device 3 serves as a power unit for smooth and efficient cutting.

[0040] like Figures 1-4 As shown, the cutting device 3 includes a device connection bracket 301, an upper cutting blade assembly and a lower cutting blade assembly. The core adopts a cutting method of "dual cylinder drive + upper and lower cutting blade cooperation" to ensure that the wire is cut flat and without pressure damage.

[0041] Specifically, the equipment connecting bracket 301 is made of steel plate and has a "U" shaped structure. The top is bolted to the bottom of the upper cylinder 302, and the bottom is bolted to the top of the lower cylinder 306. The equipment connecting bracket 301 is fixed to the body of the unloading machine.

[0042] Specifically, the upper cutter assembly consists of an upper cylinder 302, an upper push rod 303, an upper push block 304, and an upper cutter 305. The top of the upper cylinder 302 is fixed to the second mounting hole 104 of the tooling 1 by bolts, the output shaft is threaded to the upper push rod 303, the bottom of the upper push rod 303 is welded to the upper push block 304, and the upper cutter 305 is fixed to the bottom of the upper push block 304 by countersunk screws with the cutting edge facing downwards.

[0043] Specifically, the lower cutter assembly is symmetrically arranged with the upper cutter assembly, including a lower cylinder 306, a lower push rod 307, a lower push block 308, and a lower cutter 309. The top of the lower cylinder 306 is bolted to the bottom of the equipment connecting bracket 301, the output shaft is connected to the lower push rod 307, and the lower cutter 309 is fixed to the top of the lower push block 308 with the cutting edge facing upward.

[0044] During operation, the upper cylinder 302 and the lower cylinder 306 are synchronously controlled by a solenoid valve (response time ≤ 0.1s). The upper cutter 305 moves downward and the lower cutter 309 moves upward synchronously, cutting the wire 6 when the blades overlap. Compared with the traditional single-blade cutting, this structure can avoid the insulation layer tearing caused by the wire being subjected to force on one side, the flatness of the cut surface is ≤ 0.1mm, and the wire loss rate is reduced to below 0.1%.

[0045] In some embodiments, the wire positioning mechanism 4 serves as a guarantee unit for the inkjet printing pair.

[0046] like Figures 6-7 As shown, the wire positioning mechanism 4 is used to guide the wire 6 and ensure that its axis is precisely aligned with the printhead 201, avoiding deviation in the printing position due to wire offset. It includes a support plate 401, a fixing pin 403, a fixing bracket 404, and a wire positioning wheel 405.

[0047] Specifically, the support plate 401 is made of stainless steel, with an elongated hole 402 at one end. A fixing pin 403 passes through the elongated hole 402, and the fixing pin 403 is threadedly connected to a fixing bracket 404 welded to the side of the equipment connecting bracket 301. By adjusting the position of the fixing pin 403 in the elongated hole 402, the support plate 401 can be moved horizontally by ±25mm to accommodate wires 6 of different diameters.

[0048] Specifically, the wire positioning wheel 405 is made of polyurethane to avoid scratching the wire insulation layer. The arc surface of the wire positioning wheel contacts the wire, which can prevent the wire axis from shifting between itself and the printhead, ensuring that the deviation between its axis and the center of the printhead 201 is ≤0.3mm, and improving the printing pass rate to over 99.8%.

[0049] In some embodiments, the ink cartridge serves as an auxiliary unit for clean production.

[0050] like Figure 4 , Figure 7 As shown, the ink cartridge 5 is made of transparent PP material and has a cuboid structure. It is fixed to the support plate 401 by the ink cartridge bracket 501 (a stainless steel bent part) and is located directly below the printhead 201. Its core function is to collect excess ink dripping from the printhead 201 during operation, preventing ink from contaminating the equipment surface or the insulation layer of the wires 6. At the same time, the transparent material allows operators to easily observe the ink level. When the ink reaches 2 / 3 of its volume, the ink cartridge 5 can be directly disassembled for cleaning without stopping the machine to disassemble other parts, improving maintenance efficiency by 50%.

[0051] Based on a general inventive concept, this utility model embodiment also provides an automotive wiring harness processing system, including the integrated inkjet cutting device in any of the above embodiments.

[0052] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the integrated inkjet cutting device and system for inkjet printers of this utility model, and can produce the positive effects described in this utility model.

[0053] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0054] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An integrated inkjet cutting device for an inkjet printing line cut-off machine, characterized in that, include: Tooling (1); The inkjet printing device (2) is integrated and fixed on the tooling (1) and is used to print ink on the wire (6) located below it; The cutting device (3) is integrated and fixed on the tooling (1) and is used to cut the wire (6) after inkjet printing. The path length of the wire (6) between the nozzle (201) of the coding device (2) and the cut of the cutting device (3) is 50-150mm.

2. The integrated inkjet cutting device for an inkjet printing line machine according to claim 1, characterized in that, The tooling (1) includes: The vertical plate (101) has a first mounting hole (102) for mounting the inkjet printer (2). A horizontal plate (103) is fixedly connected to the vertical plate (101) and has a second mounting hole (104) for installing the cutting device (3). The positioning reinforcing rib (105) is fixedly connected to the vertical plate (101) and the horizontal plate (103) respectively, and is used for positioning the inkjet printer (2).

3. The integrated inkjet cutting device for an inkjet printing line cutoff machine according to claim 1, characterized in that, The cutting device (3) includes: Equipment connection bracket (301); The upper cutting blade assembly is disposed on the upper part of the device connecting bracket (301); The lower cutter assembly is located at the lower part of the device connection bracket (301) and is used to cooperate with the upper cutter assembly to cut the wire (6).

4. The integrated inkjet cutting device for an inkjet printing line machine according to claim 3, characterized in that, The upper cutting blade assembly includes an upper cylinder (302), an upper push rod (303), an upper push block (304), and an upper cutting blade (305). The top of the upper cylinder (302) is fixed to the second mounting hole (104) on the tooling (1), and the bottom is fixed to the top of the equipment connecting bracket (301). The upper cylinder (302) is driven to connect with the upper push block (304) through the upper push rod (303). The upper cutting blade (305) is located at the bottom of the upper push block (304) with the cutting edge facing downward.

5. The integrated inkjet cutting device for an inkjet printing line cutoff machine according to claim 3, characterized in that, The lower cutter assembly includes a lower cylinder (306), a lower push rod (307), a lower push block (308), and a lower cutter (309). The top of the lower cylinder (306) is fixed to the bottom of the device connecting bracket (301). The lower cylinder (306) is driven to the lower push block (308) through the lower push rod (307). The lower cutter (309) is located on the top of the lower push block (308) with its cutting edge facing upward.

6. The integrated inkjet cutting device for an inkjet printing line cutoff machine according to claim 1, characterized in that, It also includes a wire positioning mechanism (4) for guiding and positioning the wire (6) to keep it aligned with the nozzle (201).

7. The integrated inkjet cutting device for an inkjet printing line cutoff machine according to claim 6, characterized in that, The wire positioning mechanism (4) includes a support plate (401), one end of which is provided with an elongated hole (402). The elongated hole (402) is connected to a fixed bracket (404) on the equipment connecting bracket (301) by a fixing pin (403). The other end of the support plate (401) is provided with a wire positioning wheel (405) for positioning the wire (6).

8. The integrated inkjet cutting device for an inkjet printing line cutoff machine according to claim 1, characterized in that, It also includes an ink cartridge (5) located below the printhead (201), which is fixed to the support plate (401) by an ink cartridge bracket (501).

9. The integrated inkjet cutting device for an inkjet printing line cutoff machine according to claim 1, characterized in that, The path length of the wire (6) between the printhead (201) of the inkjet printer (2) and the cut of the cutting device (3) is 100mm.

10. A system for automotive wiring harness processing, characterized in that, The system includes an integrated inkjet cutting device as described in any one of claims 1-9.

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