A code spraying mechanism for a printing machine

Abstract

The utility model relates to printing equipment is matched with the printing technology field of code processing, specifically disclose a kind of printing machine is with code mechanism, including printing machine rack, and printing machine rack is equipped with thickness detection device and code adjusting mechanism, and code adjusting mechanism is equipped with code nozzle, and code adjusting mechanism is installed on printing machine rack by fixing frame, along the direction of conveyance, and thickness detection mechanism is arranged in the front of code nozzle, and thickness detection mechanism is installed on the translation seat of code adjusting mechanism by support arm. This printing machine is with code mechanism can obtain paper thickness information in advance, avoid code nozzle adjusting lag, detection procedure and code procedure are separated each other and do not interfere each other, can according to paper thickness timely adjust the height position of code nozzle, make code handwriting have better depth consistency.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing technology for printing equipment, specifically an inkjet printing mechanism for printing machines. Background Technology

[0002] In the printing production process, various paper products need to complete online coding operations on a continuous paper feeding line. The printing press frame, together with the feeding conveyor belt, constitutes the main body of paper conveying. The thickness detection device, the printhead adjustment mechanism, and the coding printhead are arranged sequentially on the top of the frame. The detection, adjustment, and inkjet processes are uniformly coordinated by the control system. It is widely used in high-speed printing production lines for paper products such as color boxes, labels, and books.

[0003] Traditional printing presses lack a front-mounted independent thickness detection device. Currently, the thickness detection and the printing head are integrated, resulting in a delay in data transmission and time required for height adjustment. Consequently, the print head height cannot be adjusted in a timely manner to match the paper thickness, leading to inconsistent ink density and poor quality stability of the printed product. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a coding mechanism for printing presses. This coding mechanism can adjust the height of the coding head in a timely manner according to the paper thickness, so that the coding characters have good consistency in depth. The specific technical solution is as follows: A coding mechanism for a printing press includes a printing press frame, an inner feeding conveyor belt, a thickness detection device and a coding adjustment mechanism mounted on the printing press frame, and a coding printhead mounted on the coding adjustment mechanism. The coding adjustment mechanism is mounted on the printing press frame via a fixing bracket. The coding adjustment mechanism includes a translation mechanism and a lifting mechanism. The translation mechanism has a translation seat, which serves as the power output end of the translation mechanism. The lifting mechanism is mounted on the translation seat, and the coding printhead is mounted on the power output end of the lifting mechanism. The thickness detection device is mounted on the translation seat via a support arm and is positioned in front of the coding printhead along the conveying direction of the feeding conveyor belt.

[0005] In the preferred embodiment, the distance between the thickness detection device and the inkjet printhead is 20-40cm.

[0006] In a further preferred embodiment, the coding adjustment mechanism includes a translation mechanism and a lifting mechanism. The lifting mechanism is installed on the power output end of the translation mechanism, and the coding nozzle is installed on the power output end of the lifting mechanism.

[0007] In a further preferred embodiment, the translation mechanism includes a translation motor, two translation guide rails, a first lead screw, and a translation seat. The translation motor, two translation guide rails, and the first lead screw are all mounted on a fixed frame. The two translation guide rails and the first lead screw are arranged in a horizontal direction. The first lead screw is located between the two translation guide rails and is connected to the translation motor for transmission. The translation seat is slidably mounted on the two translation guide rails. The translation seat is provided with a first screw hole, through which the first lead screw passes and meshes. The translation seat serves as the power output end of the translation mechanism.

[0008] In a further preferred embodiment, the lifting mechanism includes a lifting motor, two lifting guide rails, a second lead screw, and a lifting slider. The lifting motor, two lifting guide rails, and the second lead screw are all mounted on a translation seat. The two lifting guide rails and the second lead screw are arranged vertically, with the second lead screw positioned between the two lifting guide rails. The second lead screw is connected to the lifting motor via a transmission. The lifting slider is slidably mounted on the two lifting guide rails. The lifting slider has a second screw hole, through which the second lead screw passes and engages. The lifting slider serves as the power output end of the lifting mechanism, and the inkjet printer head is mounted on the lifting slider.

[0009] This utility model has at least the following beneficial effects: This invention separates the thickness detection device from the inkjet printing adjustment mechanism and connects them via a support arm. The thickness detection device is positioned in front of the inkjet printhead and moves accordingly with the inkjet printhead. This allows for the acquisition of paper thickness information in advance at the same position, avoiding delays in inkjet printhead adjustment. The detection and printing processes are separated and do not interfere with each other, resulting in accurate and stable detection data. The invention also allows for timely adjustment of the inkjet printhead height based on paper thickness, ensuring good consistency in the inkjet printing. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the translation mechanism of this utility model; Figure 3 This is a schematic diagram of the lifting mechanism of this utility model. Detailed Implementation

[0011] 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.

[0012] Please see Figure 1-3This printing press uses a coding mechanism, which includes a printing press frame 1, a feeding conveyor belt 2 on the inner side of the printing press frame 1, a thickness detection device 3 and a coding adjustment mechanism 4 installed on the printing press frame 1, a coding nozzle 5 installed on the coding adjustment mechanism 4, and the coding adjustment mechanism 4 is installed on the printing press frame 1 through a fixing frame 6. The above-mentioned inkjet printing adjustment mechanism 4 includes a translation mechanism 7 and a lifting mechanism 8. The lifting mechanism 8 is installed on the power output end of the translation mechanism 7, and the inkjet printhead is installed on the power output end of the lifting mechanism 8. The aforementioned translation mechanism 7 includes a translation motor 71, two translation guide rails 72, a first lead screw 73, and a translation seat 74. The translation motor 71, the two translation guide rails 72, and the first lead screw 73 are all mounted on the fixed frame 6. The two translation guide rails 72 and the first lead screw 73 are arranged in a horizontal direction. The first lead screw 73 is located between the two translation guide rails 72 and is connected to the translation motor 71 in a transmission manner. The translation seat 74 is slidably mounted on the two translation guide rails 72. The translation seat 74 is provided with a first screw hole, through which the first lead screw 73 passes and meshes. The translation seat 74 serves as the power output end of the translation mechanism 7.

[0013] The aforementioned thickness detection device 3 is mounted on the translation seat 74 via the support arm 9, and is positioned in front of the inkjet printer 5 along the conveying direction of the feeding conveyor belt 2. The thickness detection device is positioned 30cm in front of the inkjet printer (20-40cm is also acceptable). Among them, the thickness detection device can be the LB-CLZ-301 series of paper, film and leather thickness measuring instruments from Lubo Environmental Protection.

[0014] Typically, the support arm 9 is made of rigid materials such as steel, and a shock-absorbing spring is provided at the connection between the support arm 9 and the translation seat 74 to prevent the thickness detection device 3 from shaking.

[0015] The aforementioned lifting mechanism 8 includes a lifting motor 81, two lifting guide rails 82, a second lead screw 83, and a lifting slider 84. The lifting motor 81, the two lifting guide rails 82, and the second lead screw 83 are all mounted on the translation seat 74. The two lifting guide rails 82 and the second lead screw 83 are arranged vertically, with the second lead screw 83 located between the two lifting guide rails 82. The second lead screw 83 is connected to the lifting motor 81 in a transmission manner. The lifting slider 84 is slidably mounted on the two lifting guide rails 82. The lifting slider 84 is provided with a second screw hole, through which the second lead screw 83 passes and meshes. The lifting slider 84 serves as the power output end of the lifting mechanism 8, and the inkjet printer head 5 is mounted on the lifting slider 84.

[0016] During operation, the translation motor 71 drives the first lead screw 73 to rotate, causing the translation seat 74 to move laterally under the limit of the two translation guide rails 72, thereby moving the inkjet printhead 5 to the appropriate inkjet position. At the same time, the support arm 9 drives the thickness detection device 3 to move to the corresponding position (directly in front) in front of the inkjet printhead 5, ensuring the consistency between the thickness detection position and the inkjet position. Then, based on the paper thickness fed back by the front thickness detection device 3, the lifting motor 81 is activated, driving the second lead screw 83 to rotate, causing the lifting slider 84 to move up and down under the limit of the two lifting guide rails 82, thereby adjusting the height position of the inkjet printhead 5. That is, the height of the inkjet printhead 5 is adjusted according to the paper thickness to avoid blurry inkjet printing.

[0017] This invention separates the thickness detection device 3 from the coding adjustment mechanism 4 and connects them via a support arm 9. The thickness detection device 3 is positioned in front of the coding nozzle 5 and moves accordingly with the translation of the coding nozzle 5. This allows for the acquisition of paper thickness information in advance at the same position, enabling coding at the same location. It also avoids delays in adjusting the coding nozzle 5. The detection and coding processes are separated and do not interfere with each other. The detection data is accurate and stable, and the height of the coding nozzle can be adjusted in a timely manner according to the paper thickness, resulting in good consistency in the depth of the coded text.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0019] 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 coding mechanism for a printing press, comprising a printing press frame (1), a feeding conveyor belt (2) provided on the inner side of the printing press frame (1), a thickness detection device (3) and a coding adjustment mechanism (4) installed on the printing press frame (1), a coding nozzle (5) installed on the coding adjustment mechanism (4), and the coding adjustment mechanism (4) being installed on the printing press frame (1) via a fixing bracket (6), characterized in that: The coding adjustment mechanism (4) includes a translation mechanism (7) and a lifting mechanism (8). The translation mechanism (7) is provided with a translation seat (74), which serves as the power output end of the translation mechanism (7). The lifting mechanism (8) is installed on the translation seat (74), and the coding nozzle (5) is installed on the power output end of the lifting mechanism (8). The thickness detection device (3) is installed on the translation seat (74) via a support arm (9) and is located in front of the coding nozzle (5) along the conveying direction of the feeding conveyor belt (2).

2. The inkjet printing mechanism for a printing press according to claim 1, characterized in that: The distance between the thickness detection device (3) and the inkjet printer (5) is 20-40cm.

3. The inkjet printing mechanism for a printing press according to claim 1 or 2, characterized in that: The translation mechanism (7) includes a translation motor (71), two translation guide rails (72), a first lead screw (73), and a translation seat (74). The translation motor (71), two translation guide rails (72), and the first lead screw (73) are all mounted on the fixed frame (6). The two translation guide rails (72) and the first lead screw (73) are arranged in the horizontal direction. The first lead screw (73) is located between the two translation guide rails (72). The first lead screw (73) is connected to the translation motor (71) in a transmission manner. The translation seat (74) is slidably mounted on the two translation guide rails (72). The translation seat (74) is provided with a first screw hole. The first lead screw (73) passes through the first screw hole and engages with it.

4. The inkjet printing mechanism for a printing press according to claim 3, characterized in that: The lifting mechanism (8) includes a lifting motor (81), two lifting guide rails (82), a second lead screw (83), and a lifting slider (84). The lifting motor (81), two lifting guide rails (82), and second lead screw (83) are all mounted on the translation seat (74). The two lifting guide rails (82) and the second lead screw (83) are arranged in the vertical direction. The second lead screw (83) is located between the two lifting guide rails (82). The second lead screw (83) is connected to the lifting motor (81) in a transmission manner. The lifting slider (84) is slidably mounted on the two lifting guide rails (82). The lifting slider (84) is provided with a second screw hole. The second lead screw (83) passes through the second screw hole and meshes with it. The lifting slider (84) serves as the power output end of the lifting mechanism (8). The inkjet printer (5) is mounted on the lifting slider (84).

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