TWI705003B - Printing machine - Google Patents

Abstract

The present invention relates to a printing machine, especially a printing machine structure with multi-functional applications. It includes a front conveying table, more than one printing wheel set, a turning table, a rear conveying table and other main components. Among them, the The front conveying table, the turning table and the rear conveying table are each equipped with a servo motor to control the bag body for intermittent pushing and pulling. The printing wheel set is equipped with a servo motor to control the printing cylinder to continuously roll, thereby The bag body and the printing wheel set can be controlled by different servo motors to achieve the printing of various lengths of patterns and text. When adjusting the printing position, under the characteristics of the servo motor, the printing cylinder can be independently adjusted for displacement without stopping the machine to ensure The printing position of the printing cylinder on the bag body.

Description

Printing machine

The present invention provides a printing machine, especially one that can print various length bags without changing the printing cylinder, and adjust the printing position of the printing cylinder without stopping the machine, so as to achieve the purpose of convenient operation of the printing machine. .

According to the general bag body containing articles and raw materials, the name of the article, place of origin, company name, trademark, etc. are usually printed on the surface of the bag, and the above-mentioned words need to be printed by a special printer.

Generally, the printed words on the surface of the bag are different according to the needs of users. Therefore, the colors and printing positions required for printing are not the same. In the conventional printing presses, the special orders are all fixed systems. The color of printing determines the number of printing cylinders and the scale of the printing press. Therefore, although the structure of conventional printing presses mentioned can meet the functional requirements of basic printing, there are several shortcomings when used: 1. When printing single-sided and double-sided bags, the winding position needs to be changed. Whenever single-sided or double-sided printing changes, it is very inconvenient to stop the machine and change the winding; 2. The printing cylinders on the standard printing machine are fixed, such as pre-printing More colors can not be implemented, only repurchase the machine or abandon printing; 3. The position and distance of the printing cylinder on the standard printing machine are fixed, if there are various bags of different lengths for printing, different printing cylinder sizes are required Correspondingly, all printing cylinders need to be replaced every time different lengths are printed, so the more different lengths are printed and For multi-color bags, the larger the printing cylinder is required, which is a heavy consideration for inventory space and purchase cost; 4. When printing the next length of bag, it is necessary to adjust the printing position or during operation If the bag body is out of the printing position, it needs to be stopped and started repeatedly for investigation and adjustment, which is time-consuming and lengthy. In summary, traditional printing presses have the disadvantages of reduced competitiveness, business expansion and inconvenience for the industry, so it is based on industry progress Under the premise of the future trend, it is really necessary to propose specific improvement plans to meet the needs of industry progress and further provide the industry with more technical options.

The main purpose of the present invention is to provide a printing machine, in order to solve the huge printing cylinder cost and placement space required for conventional printing of various bags of different lengths, as well as the lengthy adjustment of the printing position required to change the size of the bag for printing; It is a printing machine that can print bags of various sizes with a single printing cylinder, and the printing cylinder is controlled by a single power source to facilitate printing position adjustment and other functions, so as to reduce the waste of process and man-hours and reduce the purchase cost.

In order to achieve the above objectives, the technical means and solutions adopted by the present invention are as follows: A printing press of the present invention includes a front conveying table, more than one printing wheel set, a turning table, and a rear conveying table. , The front conveying table, the first printing cylinder of the printing wheel set, the second printing cylinder of the printing wheel set, the turning table and the rear conveying table are each equipped with a servo motor. The front conveying table, the turning table and the rear conveying table are The servo motor controls the bag body to push and pull intermittently. The servo motors of the first layer of printing liquid cylinder and the second layer of printing cylinder control the printing cylinder to continuously roll, when the bag body undergoes intermittent displacement. The quantity X is equal to the size of the preset displacement of a bag, and the circumference of the printing cylinder of the printing wheel group is composed of the amount of the inking section Y and the amount of the vacant section Z. Therefore, when the bag body is displaced by the amount of X, the printing cylinder is synchronized to Y When the amount of X is stopped, the amount of Y has been completed, and the printing cylinder continues to roll the amount of Z. After the amount of Z ends, the amount of Y is continued, and the amount of X Restart the displacement at the same time, and then continue the above action to print the next bag; therefore, the amount of Z in the empty section is the allowable amount of the length of the printed bag, so controlling the amount of Z can match the length of the printed bag , In order to achieve the purpose of not replacing the printing cylinder.

To sum up, the displacement X varies according to the size of the bag and the distance between the printing wheels. When the distance between the printing wheels is greater than the displacement X, the distance must be X multiplied by a multiple of 2 or more to complete the displacement stroke.

(1): Printing wheel

(11): The first layer of printing cylinder

(12): The second layer of printing cylinder

(13, 22, 31, 41): Servo motor

(2): Turning table

(21): Turning wheel

(3): Front conveyor

(311,411): Roller

(4): Rear conveyor

(5): Cloth roll table

(6): Winding station

(7): Slide

(A): Bag body

Figure 1: A schematic side view of the complete process of the printing machine of the present invention.

Figure 2: A three-dimensional schematic diagram of the printing wheel set of the present invention.

Figure 3: A schematic side view of the printing wheel set of the present invention.

Figure 4: An enlarged schematic side view of the connection between the front conveyor table and the printing wheel set of the present invention.

Figure 5: An enlarged schematic side view of the connection between the printing wheel set and the turning table of the present invention.

Figure 6: An enlarged schematic side view of the rear conveyor of the present invention.

Figure 7: A schematic side view of the expansion of the printing wheel set of the complete process of the present invention.

Figure 8: Quantified schematic diagram of printing stroke of the printing bag body of the present invention (1).

Figure 9: Quantified schematic diagram of the printing stroke of the printing bag body of the present invention (2).

The following illustrations and detailed explanations will be used to illustrate the spirit and manner of the present invention. Anyone with ordinary knowledge in the art can change and modify the technology taught by the present invention after understanding the best embodiment of the present invention. It does not depart from the spirit and scope of the present invention.

Please refer to the first and third figures, a printing machine of the present invention is aimed at the bag body The complete printing process includes: a printing wheel set (1), which is equipped with a first layer of printing cylinder (11), a second layer of printing cylinder (12) and a servo motor (13), the first layer of printing cylinder ( 11) and the second layer of printing cylinder (12) are superimposed on each other, and the servo motor (13) controls its operation. The printing cylinder can print the bag body (A) in monochrome; a turning table (2) It is set on the side of the printing wheel set, which can turn the bag (A) printed by the first layer of printing cylinder (11) at a 180 degree turn, and then transfer it to the second layer of printing cylinder (12), The turning table (2) is correspondingly arranged by two turning wheels (21). Any turning wheel (21) is equipped with a servo motor (22), and the bag body (A) can be turned 180 degrees by the two turning wheels ; A front conveyor (3) is equipped with a servo motor (31) to push the bag body (A), which is connected to the first layer of printing cylinder (11); a rear conveyor (4), is set A servo motor (41) can pull and convey the bag body (A), which is connected to the second layer printing cylinder (12); a cloth rolling table (5) is connected to the front conveying table (3).

A winding table (6) is connected to the rear conveying table (4).

A sliding seat (7) is set under the printing wheel set (1) and the turning table (2). It can be provided for linear sliding to adjust the printing wheel set (1) or the printing wheel set (1) and The distance between the turning tables (2).

The bag system of the printer of the present invention is suitable for a larger capacity (such as a woven bag), and its installation uses are many. Usually, it is necessary to print pictures and words such as company name, product name, trademark, etc. on the surface of the bag body. For identification, it will be printed on both sides of the bag for easy identification, and more The color matching is more obvious, and the above requirements can be implemented on the printing machine. Please refer to the first, fourth to sixth pictures. The overall printing machine operation is as follows: the cloth roll table (5) and the front conveyor are arranged in sequence Table (3), printing wheel set (1), turning table (2), back conveyor table (4), winding table (6), bag body (A) is wound to the front conveyor table ( 3) The roller (311) controlled by the servo motor (31) is pushed by the roller (311) of the servo motor (31) to push the bag body (A) to the first printing cylinder (11) of the printing wheel set (1), Then it is sent to the turning table (2), and the two turning wheels (21) are turned 90 degrees each to make the bag body (A) turn 180 degrees, and the servo controlled by the turning wheel (21) The motor (22) assists in operation, and then transfers the bag body (A) to the second layer printing cylinder (12), and then the bag body (A) is transferred to the roller (41) controlled by the servo motor (41) of the rear conveyor (4) 411), and then transferred to the winding table (6) to roll into a cylindrical body to complete the bag body (A) operation.

To sum up, if you need to do double-sided printing on a printing machine, the method is as follows: It is composed of more than one printing wheel set (1) and a turning table (2), when the bag body (A) runs to the printing wheel set (1) When the first layer of printing cylinder (11) is used, the bag body (A) can be used to perform single-sided monochrome printing, and the first layer of printing cylinder (11) can be completed by running on the bag body (A), and then turning The second turning wheel (21) of the table (2) turns the bag body (A) 180 degrees into the second printing cylinder (12), and then performs single-sided monochrome printing on the other side of the bag body (A). The purpose of double-sided printing.

To sum up, if you need to perform bag multi-color printing, the method is as follows: Please refer to the seventh figure, between the printing wheel (1) and the turning table (2), after the printing wheel (1) Set the next printing wheel set (1) at a certain distance. According to this, an additional printing wheel set (1) is added every time a color is added. As in the above operation procedure, the first printing cylinder of each printing wheel set (1) (11) Brush the bag body (A) color by color, then turn it over 180 degrees from the turning table (2), and then print with each second layer The cylinder (12) is printed color by color, and the subsequent operations are completed as described above, thereby satisfying the multi-color printing required by the user.

In summary, the method of pre-printing bags with different lengths is as follows: it consists of more than one printing wheel set (1), a turning table (2), a front conveying table (3) and a rear conveying table ( 4) In combination, the servo motors (22, 31, 41) of the turning table (2), the front conveying table (3) and the rear conveying table (4) are used to control the bag body (A) for intermittent pushing and pulling actions , The servo motors (13) of the first layer of printing cylinder (11) and the second layer of printing cylinder (12) are used to control the printing cylinder for continuous rolling. When the bag body (A) undergoes intermittent displacement as X amount, it is equal to The size of the displacement of a bag body is preset, and the circumference of the printing cylinder of the printing wheel set (1) is composed of the amount of inking section Y and the amount of vacant section Z, so when the bag body (A) is displaced by X amount, the printing cylinder is synchronized Y volume, and Y volume is completed when X volume stops, the printing cylinder continues to scroll Z volume, after Z volume ends, Y volume scroll continues, and X volume restarts the displacement at the same time, and then continues the above action to print the next Bag body; the amount of vacant section Z is the allowable amount of the length of the printed bag, which can be used to print various bag lengths; if the amount of X is 1000mm above, the distance is the bag printed From the starting point to the printing starting point of the next bag body, assuming that the Y volume is 800mm, the Z volume is 500mm, and the X volume-Y volume-Z volume = -300mm, the range of the bag that can be printed may be more Increase by 300mm (see also the eighth figure).

To sum up, the displacement X varies according to the size of the bag and the distance between the printing cylinders. Assuming that the size of the bag is small so that the distance between the printing cylinders is greater than the displacement X, the distance must be X multiplied by a multiple of 2 or more. The stroke to complete the displacement (see also figure 9).

In summary, when the printing position needs to be adjusted during the printing process, the servo motor (13) of the printing wheel set (1) can be controlled to change speed, and then the servo motor (13) can be driven back to Adjust the printing cylinder to the correct position preset by the bag body (A) under the condition that the printing cylinder rotates slowly and the bag body (A) keeps the original speed; this can be used independently under the overall printing Adjust the printing position of a set of printing wheels to complete the adjustment of the printing position without stopping the machine.

To sum up, the printing machine of the present invention, by printing different bag lengths and the need to replace the printing cylinder, is to solve the problem of repurchasing the machine and operating inconvenience, so as to reduce and reduce the operation procedures, time and cost. The purpose is the most specific design of the printing machine structure made by the present invention.

(1): Printing wheel

(11): The first layer of printing cylinder

(12): The second layer of printing cylinder

(2): Turning table

(3): Front conveyor

(4): Rear conveyor

(5): Cloth roll table

(6): Winding station

(7): Slide

(A): Bag body

Claims (2)

A printing machine, which is composed of a front conveying table, more than one printing wheel set, a turning table, a rear conveying table and other main components; wherein each of the front conveying table, printing wheel set, turning table and rear conveying table Equipped with a servo motor; the above-mentioned servo motors of the front conveying table, turning table and rear conveying table are used to control the intermittent pushing and pulling of the bag body, and the servo motors of the first layer of printing cylinder and the second layer of printing cylinder It is used to control the printing cylinder to continuously roll; it is characterized in that: the bag body is displaced by the intermittent displacement as X amount, which is equal to the size of a bag body preset displacement, and the printing cylinder circumference of the printing wheel set is determined by the inking section The quantity Y is composed of the quantity Z of the vacant section. Therefore, when the bag body is displaced by the quantity X, the printing cylinder performs the quantity Y synchronously. When the quantity X stops, the quantity Y is completed. The printing cylinder continues to roll the quantity Z, and continues after the quantity Z ends. Y volume rolls, and X volume restarts displacement at the same time, and then continues the above action to print the next bag; therefore, the empty section Z volume is the allowable length of the printed bag, so controlling the amount of Z can be matched with the printing The length of various bags can be made so as not to replace the printing cylinder. For the printing machine described in item 1 of the scope of the patent application, the bag body has an intermittent displacement of X amount, which can be changed according to the size of the bag body and the distance between the printing wheels. When the distance between the printing wheels is greater than the displacement X amount , The distance needs to be X amount multiplied by a multiple of 2 or more to complete the displacement stroke.

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