Code inkjet printer clamping tool

The inkjet printer clamping fixture, designed with a linkage mechanism and a hand-tightening screw, solves the problem that existing devices cannot adapt to products of different specifications, achieving precise positioning and efficient clamping, and improving the application range and production efficiency of the inkjet printer.

CN224375138UActive Publication Date: 2026-06-19QINGDAO YUHE FOOD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO YUHE FOOD CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-19

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  • Figure CN224375138U_ABST
    Figure CN224375138U_ABST
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Abstract

This utility model discloses a clamping fixture for an inkjet printer, including a base plate. Support legs are fixedly installed at the four corners of the top of the base plate. A top seat is fixedly installed on the top of each support leg, and a mounting frame is fixedly installed on the bottom of the top seat. A drive motor is fixedly installed inside the mounting frame, and a linkage mechanism is fixedly installed through the top output end of the drive motor via the top seat. This utility model adopts the above structure. During application, its hand-tightening screw design eliminates the need for additional tools, allowing operators to quickly adjust the position of the clamping mechanism by hand. Through simple operations such as sliding the movable block and inserting the limiting hole for fixation, precise positioning of workpieces with special shapes can be achieved. Simultaneously, the dual mechanism of multi-directional synchronous adjustment and independent fine-tuning ensures clamping efficiency and avoids inkjet printing deviation caused by workpiece displacement, significantly improving production efficiency and ensuring the accuracy of inkjet printing position and marking quality.
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Description

Technical Field

[0001] This utility model belongs to the field of inkjet printer technology, and specifically relates to inkjet printer clamping fixtures. Background Technology

[0002] In modern industrial production, inkjet printers, as indispensable marking equipment, are widely used in many industries such as food, beverage, pharmaceuticals, electronics, and automobile manufacturing. They can accurately print key information such as production date, batch number, expiration date, and serial number on the surface of products or packaging, not only meeting the needs of product traceability and quality management, but also playing a role in anti-counterfeiting and brand promotion to a certain extent.

[0003] However, existing inkjet printers have significant drawbacks in practical use. Most inkjet printers operate by placing the workpiece at the bottom of the machine. When the workpiece is subjected to external force, it is prone to displacement on the inkjet printer, resulting in deviations in the inkjet printing position, affecting the marking effect and product quality. To solve this problem, Chinese patent with publication number "CN222946420U" discloses an inkjet printer with a workpiece clamping mechanism. By driving the clamping components with a motor, multiple clamping blocks can simultaneously clamp and position the workpiece, effectively reducing the movement of the workpiece caused by force and improving the accuracy of the inkjet printing position. However, this device still has significant defects in practical applications. Its clamping components cannot flexibly adjust the extension and retraction of the clamping parts, and the design of uniform rotation of each clamping block is only suitable for clamping products of the same size to be printed. Once the shape and size of the product change, it is difficult to quickly and effectively clamp products of different specifications, which greatly limits the application range and versatility of the inkjet printer and makes it difficult to meet diverse production needs. Therefore, it is necessary to improve its design. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a clamping fixture for inkjet printers to solve the problems raised in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A marking machine clamping fixture includes a base plate. Support legs are fixedly installed at the four corners of the top of the base plate. A top seat is fixedly installed on the top of the support legs. A mounting frame is fixedly installed on the bottom of the top seat. A drive motor is fixedly installed inside the mounting frame. A linkage mechanism is fixedly installed through the top output end of the drive motor and through the top seat. A clamping mechanism is fixedly installed in a ring at equal intervals on the outside of the linkage mechanism.

[0007] The linkage mechanism includes a box body, which is fixedly installed in the middle of the top of the top seat. A main bevel gear is rotatably connected to the middle of the bottom of the box body. A secondary bevel gear is rotatably connected to each surface inside the box body. The main bevel gear and the secondary bevel gear are meshed together. The outer side of the secondary bevel gear is connected to the inner side of the clamping mechanism.

[0008] Furthermore, a support frame is fixedly installed on the top of the top seat, and a bearing plate is fixedly installed on the top of the support frame. The bearing plate is located on the outside of the box body.

[0009] Furthermore, the clamping mechanism includes side rails, which are arranged in a ring at equal intervals and fixedly installed on the outside of the box. Each side rail is rotatably connected to a lead screw, the inner end of which is connected to the outer side of the secondary bevel gear. The outer surface of the lead screw is threaded with a slider, which is slidably connected to the inside of the side rail. An adjusting clamp is fixedly installed on the top of the slider.

[0010] Furthermore, the adjusting clamp assembly includes an adjusting rail, which is fixedly installed on the top of the slider. A movable block is slidably connected inside the adjusting rail. A clamping arm is fixedly installed on the upper inner side of the movable block. A clamping plate is fixedly installed on the inner end of the clamping arm. Fixed arms are fixedly connected to the upper ends of both sides of the movable block. A mounting screw is threaded to the outer end of the fixed arm, and the end of the mounting screw passes through the fixed arm.

[0011] Furthermore, the mounting screw is a hand-tightening screw, and the two sides of the adjusting rail are linearly arranged with equal spacing and fixedly connected to limit holes, with the end of the mounting screw inserted into the limit hole.

[0012] Furthermore, a coding machine mounting frame is fixedly installed on the outer side of the top seat, and a coding machine mounting base is fixedly installed in the middle of the top of the coding machine mounting frame.

[0013] Furthermore, mounting holes are provided at the four corners inside the inkjet printer mounting base, and the mounting holes are countersunk holes.

[0014] In summary, the present invention has the following main advantages:

[0015] First, by starting the drive motor, the power of the motor is transmitted to the main bevel gear of the linkage mechanism through the top output end. The main bevel gear rotates in the box and drives the secondary bevel gears on the four sides of the box to rotate synchronously due to the meshing relationship with the secondary bevel gear. Since the secondary bevel gear is connected to the lead screw in the clamping mechanism, the lead screw rotates accordingly. Using the principle of screw transmission, the slider in the side rail is driven to move linearly along the axis of the lead screw. At this time, the adjusting clamps on the top of the four sliders move closer to the workpiece synchronously to achieve the centering positioning of the workpiece.

[0016] Secondly, during the application of this device, the hand-tightening screw design eliminates the need for additional tools. Operators can quickly adjust the position of the clamping mechanism by hand. Through the simple operation of sliding the movable block and inserting the limiting hole for fixation, precise positioning of workpieces with special shapes can be achieved. At the same time, the dual mechanism of multi-directional synchronous adjustment and independent fine adjustment not only ensures clamping efficiency but also avoids coding deviation caused by workpiece displacement, significantly improving production efficiency and ensuring the accuracy of coding position and marking quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view structural diagram of this utility model;

[0019] Figure 3 This is a top view schematic diagram of the linkage mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjusting clamp assembly structure of this utility model.

[0021] Reference numerals: 1. Base plate; 2. Support leg; 3. Top seat; 4. Mounting bracket; 5. Drive motor; 6. Linkage mechanism; 61. Box body; 62. Main bevel gear; 63. Secondary bevel gear; 7. Clamping mechanism; 71. Side rail; 72. Lead screw; 73. Slider; 74. Adjusting clamping assembly; 741. Adjusting rail; 742. Movable block; 743. Clamping arm; 744. Clamping plate; 745. Fixed arm; 746. Mounting screw; 747. Limiting hole; 8. Support frame; 9. Bearing plate; 10. Inkjet printer mounting frame; 11. Inkjet printer mounting base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please refer to Figure 1-4The inkjet printer clamping fixture of this embodiment includes a base plate 1. Support legs 2 are fixedly installed at the four corners of the top of the base plate 1. A top seat 3 is fixedly installed on the top of the support legs 2. A mounting frame 4 is fixedly installed on the bottom of the top seat 3. A drive motor 5 is fixedly installed inside the mounting frame 4. A linkage mechanism 6 is fixedly installed through the top seat 3 at the top output end of the drive motor 5. A clamping mechanism 7 is fixedly installed in a ring at equal intervals on the outside of the linkage mechanism 6.

[0025] The linkage mechanism 6 includes a housing 61, which is fixedly installed at the top center of the top seat 3. A main bevel gear 62 is rotatably connected to the bottom center of the housing 61. A secondary bevel gear 63 is rotatably connected to each side of the housing 61. The main bevel gear 62 and the secondary bevel gear 63 are meshed together. The outer side of the secondary bevel gear 63 is connected to the inner side of the clamping mechanism 7. When the inkjet printer clamping fixture is working, the workpiece is first placed on the support plate 9, and the drive motor 5 in the mounting frame 4 is started. Its power is transmitted to the main bevel gear 62 of the linkage mechanism 6 through the top output end. The main bevel gear 62 rotates inside the housing 61, and through the meshing transmission with the secondary bevel gear 63, it drives the secondary bevel gears 63 on the four sides of the housing 61 to rotate synchronously. Because the secondary bevel gear 63 is connected to the lead screw 72 inside the clamping mechanism 7, the lead screw 72 rotates accordingly. Utilizing the characteristics of threaded transmission, it drives the slider 73 inside the side rail 71 to move linearly along the axis of the lead screw 72, thereby causing the adjusting clamping group 74 at the top of the four sliders 73 to move towards the workpiece synchronously, completing the initial positioning. If the workpiece has a special shape or size, the operator can loosen the hand-tightening mounting screw 746, allowing the movable block 742 to slide freely within the adjusting rail 741, adjusting the position of the clamping arm 743 and the clamping plate 744. After determining the position, the end of the mounting screw 746 is inserted into the corresponding limiting hole 747 for fixation, achieving precise clamping of workpieces of different shapes and sizes, and providing stable support for subsequent inkjet printing operations.

[0026] Please refer to Figures 1-3 A support frame 8 is fixedly installed on the top of the top seat 3, and a bearing plate 9 is fixedly installed on the top of the support frame 8. The bearing plate 9 is located on the outside of the box body 61. The support frame 8 and the bearing plate 9 on its top can be used to place the products to be printed, which is convenient for the use of this device.

[0027] Please refer to Figures 1-4The clamping mechanism 7 includes side rails 71, which are arranged in a ring at equal intervals and fixedly installed on the outside of the housing 61. Each side rail 71 is rotatably connected to a lead screw 72. The inner end of the lead screw 72 is connected to the outer side of the secondary bevel gear 63. A slider 73 is threaded onto the outer surface of the lead screw 72 and slidably connected to the inside of the side rails 71. An adjusting clamping assembly 74 is fixedly installed on the top of the slider 73. The adjusting clamping assembly 74 includes an adjusting rail 741, which is fixedly installed on the slider 73. At the top, a movable block 742 is slidably connected inside the adjusting rail 741. A clamping arm 743 is fixedly installed on the upper inner side of the movable block 742. A clamping plate 744 is fixedly installed on the inner end of the clamping arm 743. Fixed arms 745 are fixedly connected to the upper ends of both sides of the movable block 742. A mounting screw 746 is threadedly connected to the outer end of the fixed arm 745. The end of the mounting screw 746 passes through the fixed arm 745. During the use of this device, when the inkjet printer clamps the fixture, the auxiliary linkage mechanism 6... After the bevel gear 63 rotates, the lead screw 72 connected to the outer side of the secondary bevel gear 63 rotates within the side rail 71. Since the outer surface of the lead screw 72 is threadedly connected to the slider 73, according to the principle of thread transmission, the rotation of the lead screw 72 is converted into the linear motion of the slider 73 within the side rail 71 along the axis of the lead screw 72. This causes multiple sliders 73, which are arranged in a ring at equal intervals on the outer side of the box 61, to move synchronously, thereby driving the top-fixed adjusting clamp 74 to move closer to the workpiece and complete the initial positioning of the workpiece. If the workpiece has a special shape or size, the operator can loosen the mounting screw 746 on the fixed arm 745 to allow the movable block 742 to slide freely within the adjusting rail 741, thereby adjusting the position of the clamping arm 743 and the clamping plate 744. After determining the appropriate clamping position, the end of the mounting screw 746 is inserted into the corresponding limiting hole 747 of the adjusting rail 741 and tightened. Through the flexible adjustment of the adjusting clamp 74, precise clamping of workpieces of different shapes and sizes can be achieved, ensuring the stable operation of the inkjet printing.

[0028] Please refer to Figures 1-4The mounting screw 746 is a hand-tightening screw. Limiting holes 747 are fixedly connected to both sides of the adjusting rail 741 in a linear arrangement with equal spacing. The end of the mounting screw 746 is inserted into the limiting hole 747. A coding machine mounting bracket 10 is fixedly mounted on the outer side of the top seat 3. A coding machine mounting base 11 is fixedly mounted in the middle of the top of the coding machine mounting bracket 10. Mounting holes are provided at the four corners inside the coding machine mounting base 11. These mounting holes are countersunk holes. During use, when clamping workpieces of special shapes and sizes, the hand-tightening mounting screw 746 allows the operator to quickly loosen it by hand, enabling the movable block 742 to slide freely within the adjusting rail 741, flexibly adjusting the position of the clamping arm 743 and the clamping plate 744. After adjustment, insert the end of the mounting screw 746 into the linearly arranged limiting holes 747 on both sides of the adjusting rail 741. Tighten the screw to fix the movable block 742. Use the limiting holes 747 for precise positioning to ensure that the clamping force and position are adapted to the needs of different workpieces. After the workpiece is clamped, the inkjet printer mounting bracket 10 on the outside of the top seat 3 provides a stable installation base for the inkjet printer. The inkjet printer mounting base 11 in the middle of its top can be used to firmly install the inkjet printer with screws through the countersunk holes at the four corners. The countersunk hole design allows the screw head to sink into the hole, ensuring that the inkjet printer mounting surface is flat and avoiding the impact of screw protrusion on the inkjet printer installation accuracy or interference, thereby ensuring the stable operation of the inkjet printer and realizing accurate inkjet printing operation on fixed workpieces.

[0029] Operating principle and advantages: During use, when using this inkjet printer to clamp the fixture, place the workpiece to be printed on the support plate 9, start the drive motor 5, and the motor's power is transmitted to the main bevel gear 62 of the linkage mechanism 6 through the top output end. The main bevel gear 62 rotates inside the housing 61, and through its meshing relationship with the secondary bevel gear 63, drives the secondary bevel gears 63 on the four sides inside the housing 61 to rotate synchronously. Since the secondary bevel gears 63 are connected to the lead screw 72 in the clamping mechanism 7, the lead screw 72 rotates accordingly. Utilizing the thread transmission principle, the slider 73 in the side rail 71 is driven along the thread... When rod 72 moves in a straight line along its axis, the adjusting clamps 74 on the top of the four sliders 73 move toward the workpiece in sync, achieving initial positioning of the workpiece. If the workpiece has a special shape or size, the operator can loosen the hand-tightening mounting screw 746 to allow the movable block 742 to slide freely within the adjusting rail 741, adjusting the position of the clamping arm 743 and the clamping plate 744. Once the position is determined, the end of the mounting screw 746 is inserted into the corresponding limiting hole 747 to fix it, thus completing the precise clamping of workpieces of different shapes and sizes. Then, the inkjet printer can perform inkjet printing on the fixed workpiece.

[0030] During the application of this device, it addresses the problems of traditional clamping devices, such as the inability to flexibly adjust the extension and retraction of clamping parts and the limitation to clamping products of the same size. This solution, through the cooperation of lead screw 72, slider 73, and adjusting clamping group 74, achieves multi-directional synchronous adjustment and independent fine-tuning of clamping mechanism 7. The linkage mechanism 6 drives the four clamping mechanisms 7 to move synchronously, enabling rapid initial positioning of workpieces of different sizes. The design of movable block 742, mounting screw 746, and limiting hole 747 in adjusting clamping group 74 allows operators to flexibly adjust the clamping position according to the actual shape and size of the workpiece. Whether the product is regular or irregular, it can be firmly clamped, greatly improving the versatility of the clamping fixture. In addition, the design of the hand-tightening screw allows operators to complete the adjustment without the aid of tools, significantly improving the convenience of operation and production efficiency, effectively meeting diverse production needs, making up for the shortcomings of existing technologies in quickly clamping products of different specifications, and ensuring the accuracy of the coding position and the quality of the coding.

[0031] In this inkjet printer clamping fixture, the base plate 1 has dimensions of 800mm×800mm-1200mm×1200mm and a thickness of 8-12mm; the support leg 2 is 200-300mm high and has a cross-section of 50mm×50mm; both are made of Q235B steel to ensure stable load-bearing. The top seat 3 is 15-20mm thick and machined from 45# steel; the mounting bracket 4 is welded and fixed to it, and its material is Q235B. The housing 61 of the linkage mechanism 6 is made of 300mm×300mm×200mm aluminum alloy; the main and auxiliary bevel gears 63 have a module of 2-3, are made of 40Cr and have undergone quenching treatment; the side rail 71 of the clamping mechanism 7 is long... The lead screw 72 has a lead of 5-8mm and a diameter of 12-16mm, with a diameter of 200-300mm. It is paired with an appropriate aluminum alloy slider 73. The adjustment clamp 74 and related components are also selected with appropriate specifications and materials. The inkjet printer mounting bracket 104 is highly customized, and the countersunk hole diameter of the mounting base is M6-M8. Both are made of Q235B steel and 45 steel respectively. In terms of electronic components, the drive motor 5 is a 57BYGH series stepper motor powered by 24VDC. The control circuit consists of a Siemens S7-200SMART series PLC controller powered by 24VDC and an appropriate SH-20403 driver to achieve precise control.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for holding a coding machine, characterized in that: The system includes a base plate (1), and support legs (2) are fixedly installed at the four corners of the top of the base plate (1). A top seat (3) is fixedly installed on the top of the support legs (2). A mounting frame (4) is fixedly installed on the bottom of the top seat (3). A drive motor (5) is fixedly installed inside the mounting frame (4). A linkage mechanism (6) is fixedly installed through the top seat (3) at the top output end of the drive motor (5). A clamping mechanism (7) is fixedly installed in a ring at equal intervals on the outside of the linkage mechanism (6). The linkage mechanism (6) includes a box body (61), which is fixedly installed in the middle of the top of the top seat (3). A main bevel gear (62) is rotatably connected to the middle of the bottom of the box body (61). A secondary bevel gear (63) is rotatably connected to each surface inside the box body (61). The main bevel gear (62) and the secondary bevel gear (63) are meshed. The outer side of the secondary bevel gear (63) is connected to the inner side of the clamping mechanism (7).

2. The inkjet printer clamping fixture according to claim 1, characterized in that: A support frame (8) is fixedly installed on the top of the top seat (3), and a bearing plate (9) is fixedly installed on the top of the support frame (8). The bearing plate (9) is located on the outside of the box body (61).

3. The inkjet printer clamping fixture according to claim 1, characterized in that: The clamping mechanism (7) includes side rails (71), which are arranged in a ring at equal intervals and fixedly installed on the outside of the box (61). Each side rail (71) is rotatably connected to a lead screw (72). The inner end of the lead screw (72) is connected to the outer side of the secondary bevel gear (63). The outer surface of the lead screw (72) is threadedly connected to a slider (73). The slider (73) is slidably connected to the inside of the side rail (71). An adjusting clamp (74) is fixedly installed on the top of the slider (73).

4. The inkjet printer clamping fixture according to claim 3, characterized in that: The adjusting clamp assembly (74) includes an adjusting rail (741), which is fixedly installed on the top of the slider (73). A movable block (742) is slidably connected inside the adjusting rail (741). A clamping arm (743) is fixedly installed on the upper inner side of the movable block (742). A clamping plate (744) is fixedly installed on the inner end of the clamping arm (743). Fixed arms (745) are fixedly connected to the upper ends of both sides of the movable block (742). A mounting screw (746) is threadedly connected to the outer end of the fixed arm (745). The end of the mounting screw (746) passes through the fixed arm (745).

5. The inkjet printer clamping fixture according to claim 4, characterized in that: The mounting screw (746) is a hand-tightening screw. The two sides of the adjusting rail (741) are linearly arranged with equal spacing and fixedly connected to the limiting holes (747). The end of the mounting screw (746) is inserted into the limiting hole (747).

6. The inkjet printer clamping fixture according to claim 1, characterized in that: A coding machine mounting frame (10) is fixedly installed on the outer side of the top seat (3), and a coding machine mounting base (11) is fixedly installed in the middle of the top of the coding machine mounting frame (10).

7. The inkjet printer clamping fixture according to claim 6, characterized in that: The inkjet printer mounting base (11) has mounting holes at all four corners inside, and the mounting holes are countersunk holes.