Conveying device for packaging bag printing production

By introducing the collaborative design of fixed components and printing components in the packaging bag printing and production conveying device, the automatic fixation and synchronous printing of the packaging bag is achieved by using components such as magnetic adsorption and electrically controlled cylinders, the problems of low printing efficiency and high energy consumption are solved, and the production efficiency and the practicality of the device are improved.

CN120288423APending Publication Date: 2025-07-11WENZHOU ZHONGHE PACKING CO LTD
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Patent Information

Application Number
CN202510506771.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

The existing conveyor device for packaging bag printing and production has many steps, resulting in low printing efficiency, unable to print while conveying, and manual position adjustment and fixed, which is time-consuming and labor-intensive, and the clamping device relies on external power parts to be energy-saving and environmentally friendly.

Method used

The collaborative design of fixed components and printing components is adopted, and the automatic fixing and synchronous printing of the packaging bag is achieved by using components such as magnetic adsorption and electrically controlled cylinders. The conveying and printing process is controlled through servo motors and displacement sensors to achieve efficient fixing and automatic alignment of the packaging bags.

Benefits of technology

It realizes efficient fixing and automatic alignment printing of packaging bags, improves printing efficiency, saves manual adjustment time, reduces energy consumption, and improves the practicality and energy saving of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of conveying devices, in particular to a conveying device for packaging bag printing production. By means of the fixing assembly, through the synergistic effect of a balancing weight and a pressing fixing block, under the action of gravity, stable fixing and releasing of a packaging bag can be achieved; a displacement sensor generates data for position and displacement changes of a fixing assembly and a printing assembly, firstly, a control panel controls a servo motor to operate, a mounting base transversely moves to the position over a rotating base, then the mounting base and the rotating base are kept to move synchronously, and the printing assembly and the fixing assembly are fixed. The packaging bag and the printing structure are made to be the same in speed and direction, and then the control panel controls the electric control air cylinder to operate so that the electric control air cylinder can drive the concave printing plate to conduct printing; the positioning plate is driven by the magnetic guide block to be inserted into the inner wall of the guide groove to be fixed, so that the printing assembly and the fixing assembly are aligned in position, and the packaging bag can be printed through the concave printing plate.
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Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and particularly to a conveying device for bag printing production. Background Art

[0002] The conveying device for bag printing production is an indispensable part in the bag printing process, which is responsible for efficiently and smoothly conveying the bags from one working station to the next, ensuring the coherence and efficiency of the production process. The device mainly consists of three core parts: a power system, a conveying system, and a support structure; The existing conveying device is used to convey the bags and perform printing and processing after the bags are conveyed to a suitable position. However, the printing process has many steps, resulting in low printing efficiency and the problem of not being able to print while conveying; moreover, after the conveyed bags are transported, manual adjustment of the position is required to align with the printing plate and fix them for subsequent printing. This process is not only time-consuming and laborious but also reduces the practicability of the device; at the same time, the existing clamping devices are all mechanically fixed by power components, and the need for external power components makes the device less energy-saving and environmentally friendly.

[0003] Therefore, a conveying device for bag printing production is needed to improve the above problems. Summary of the Invention

[0004] In order to solve the problems that when the conveying device for bag printing production is in use, the printing process has many steps, resulting in low printing efficiency and not being able to print while conveying, the present invention provides a conveying device for bag printing production to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions: A conveying device for bag printing production, including a mounting bracket, a conveyor is installed on the top outer wall of the mounting bracket, a control panel is installed on the side wall of the mounting bracket, a printing assembly is installed on the top outer wall of the mounting bracket, a fixing assembly is arranged on the outer wall of the conveyor, a fixing plate is installed on the side wall of the mounting bracket, the fixing plate is inclined 45 degrees relative to the surface of the mounting bracket, and an identification camera is installed on the outer wall of the fixing plate; The fixing assembly fixes the bags, and the printing assembly moves synchronously with the conveyor while the printing assembly prints the bags; The printing assembly includes a sliding track and a displacement sensor. The sliding track is installed on the opposite outer walls of the mounting bracket. An installation plate is installed on the opposite outer walls of the sliding track. A servo motor is installed on the outer wall of the installation plate. A threaded rotating rod is rotatably connected to the opposite inner walls of the installation plate. One end of the threaded rotating rod penetrates through the installation plate and extends to the outer wall of the installation plate to be connected to the servo motor. An installation base is threadedly connected to the outer wall of the threaded rotating rod between the installation plates, and the installation base is slidably connected to the inner wall of the sliding track. An electric control cylinder is embedded in the outer wall of the installation base. One end of the electric control cylinder penetrates through the installation base and extends to the outer wall of the installation base to be connected to a concave printing plate. Limiting guide rods are installed on the opposite outer walls of the concave printing plate, and one end of the limiting guide rod is slidably connected to the outer wall of the installation base.

[0006] As a preferred solution of the present invention, positioning guide rods are symmetrically installed on the outer wall of the installation base on one side of the electric control cylinder. The connection mode between the positioning guide rod and the installation base is a sliding connection. A positioning plate is installed at one end of the positioning guide rod. Limiting springs are symmetrically installed on the outer wall of the positioning plate, and the positioning guide rod is located in the inner cavity of the limiting spring. A magnetic guiding block is installed on the bottom outer wall of the positioning plate.

[0007] As a preferred solution of the present invention, two groups of displacement sensors are provided and are respectively located on the opposite inner walls of the mounting bracket, and the displacement sensors are located on one side of the conveyor. An electric control telescopic cylinder is installed on the outer wall of the installation base. One end of the electric control telescopic cylinder penetrates through the installation base and extends to the outer wall of the installation base to be connected to a positioning plate.

[0008] As a preferred solution of the present invention, the fixing assembly includes an installation bottom plate. Multiple groups of installation bottom plates are provided and are respectively located on the outer wall of the conveyor. A rotating base is installed on the outer wall of the installation bottom plate. A guiding groove is formed on the opposite outer walls of the rotating base. A magnetic adsorption block is installed on the inner wall of the guiding groove, and the magnetic adsorption block is located directly below the magnetic guiding block.

[0009] As a preferred solution of the present invention, the connection mode between the magnetic adsorption block and the magnetic guiding block is magnetic connection. An installation frame is installed on the opposite outer walls of the rotating base. The installation frame is located on one side of the guiding groove. A guiding sleeve is formed on the outer wall of the installation frame.

[0010] As a preferred solution of the present invention, a sliding rod is slidably connected to the inner wall of the guiding sleeve. A pressing fixing block is installed at one end of the sliding rod. Sliding sleeves are installed on the opposite side walls of the pressing fixing block, and the sliding sleeves are slidably connected to the side walls of the installation frame.

[0011] As a preferred embodiment of the present invention, a connecting rod is installed on the outer wall of the downward pressing fixing block. One end of the connecting rod penetrates through the mounting bracket and extends to the outer wall of the mounting bracket to be connected with a counterweight block. A magnetic fixing block is installed on the inner wall of the mounting bracket. The magnetic fixing block is located directly above the downward pressing fixing block. The magnetic fixing block and the downward pressing fixing block are magnetically connected.

[0012] As a preferred embodiment of the present invention, support foot pads are provided at the bottom corners of the mounting bracket. The control panel is electrically connected to a servo motor, an electric control cylinder, a conveyor, an electric control telescopic cylinder, a displacement sensor, and an identification camera through wires.

[0013] Compared with the prior art, the present invention realizes the efficient fixing and automatic reset of the packaging bag by setting a fixing component in the conveying device for packaging bag printing production. When the packaging bag needs to be printed and fixed above the conveyor, only the counterweight block in the pressing fixing component needs to be pressed down to fix the packaging bag. After printing is completed, when the conveyor drives the fixing component to move below, the fixing of the packaging bag is lost, and at the same time, the downward pressing fixing block in the fixing component resets, thus solving the problem that the existing clamping devices are mechanically fixed by power components, and the external power components will make the device less energy-saving and environmentally friendly.

[0014] The present invention sets a printing component in the conveying device for packaging bag printing production. The displacement sensor generates data on the position and displacement changes of the fixing component and the printing component. First, the control panel controls the servo motor to operate, so that the mounting base moves horizontally to directly above the rotating base. Subsequently, the mounting base and the rotating base are kept moving synchronously with each other, so that the speed and direction of the packaging bag and the printing structure are the same, and they are relatively stationary to each other. Then, the control panel controls the electric control cylinder to operate, so that the electric control cylinder drives the intaglio printing plate to print, thus solving the problem that the existing conveying device conveys the packaging bag and then performs printing processing at a suitable position. However, the printing process has many steps, which will reduce the printing processing efficiency and cannot print while conveying.

[0015] In the present invention, by providing a magnetic adsorption block and a magnetic guiding block in the conveying device for packaging bag printing production, when one end of the electric control telescopic cylinder drives the positioning plate to move downward, the positioning plate drives the magnetic guiding block to move downward. When magnetic adsorption occurs between the magnetic guiding block and the magnetic adsorption block, the magnetic guiding block will drive the positioning plate to insert into the inner wall of the guiding groove for fixation, thereby aligning the positions between the printing assembly and the fixing assembly. When one end of the electric control cylinder drives the concave printing plate to move downward, the concave printing plate will print on the packaging bag, with better practicability, thus solving the problem that the position of the packaging bag after conveying still needs to be manually adjusted to align with the printing plate and fixed for subsequent printing. This process is not only time-consuming and laborious but also reduces the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the threaded rotating rod structure of the present invention; Figure 3 is a schematic side view structure of the present invention; Figure 4 For the present invention Figure 2 is an enlarged schematic diagram of Structure A; Figure 5 is a schematic diagram of the printing assembly structure of the present invention; Figure 6 is a schematic diagram of the fixing assembly of the present invention; Figure 7 For the present invention Figure 5 is an enlarged schematic diagram of Structure B; Figure 8 For the present invention Figure 6 is an enlarged schematic diagram of Structure C.

[0017] In the figure: 1, mounting bracket; 2, conveyor; 3, control panel; 4, printing assembly; 401, sliding track; 402, mounting plate; 403, servo motor; 404, threaded rotating rod; 405, mounting base; 406, electric control cylinder; 407, concave printing plate; 408, limit guide rod; 409, positioning guide rod; 410, positioning plate; 411, limit spring; 412, magnetic guiding block; 413, displacement sensor; 414, electric control telescopic cylinder; 5, fixing assembly; 501, mounting bottom plate; 502, rotating base; 503, guiding groove; 504, magnetic adsorption block; 505, mounting frame; 506, guiding sleeve; 507, sliding rod; 508, pressing and fixing block; 509, sliding sleeve; 510, connecting rod; 511, counterweight block; 512, magnetic fixing block; 6, fixing plate; 7, identification camera; 8, support foot pad. DETAILED DESCRIPTION OF THE INVENTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment: Please refer to Figure 1-8 A conveying device for packaging bag printing production as shown, which includes a mounting bracket 1. A conveyor 2 is installed on the top outer wall of the mounting bracket 1. A control panel 3 is installed on the side wall of the mounting bracket 1. A printing assembly 4 is installed on the top outer wall of the mounting bracket 1. A fixing assembly 5 is provided on the outer wall of the conveyor 2. A fixing plate 6 is installed on the side wall of the mounting bracket 1. The fixing plate 6 is inclined 45 degrees relative to the surface of the mounting bracket 1. An identification camera 7 is installed on the outer wall of the fixing plate 6; The fixing assembly 5 fixes the packaging bag. The printing assembly 4 moves synchronously with the conveyor 2, and at the same time, the printing assembly 4 prints on the packaging bag; In this embodiment, specifically refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 7, the printing assembly 4 includes a sliding track 401 and a displacement sensor 413. The sliding track 401 is installed on the opposite outer walls of the mounting bracket 1. An installation plate 402 is installed on the opposite outer walls of the sliding track 401. A servo motor 403 is installed on the outer wall of the installation plate 402. A threaded rotating rod 404 is rotatably connected to the opposite inner walls of the installation plate 402. One end of the threaded rotating rod 404 passes through the installation plate 402 and extends to the outer wall of the installation plate 402 to be connected to the servo motor 403. An installation base 405 is threadedly connected to the outer wall of the threaded rotating rod 404 between the installation plates 402, and the installation base 405 is slidably connected to the inner wall of the sliding track 401. An electric control cylinder 406 is embedded and installed on the outer wall of the installation base 405. One end of the electric control cylinder 406 passes through the installation base 405 and extends to the outer wall of the installation base 405 to be connected to a concave printing plate 407. Limiting guide rods 408 are installed on the opposite outer walls of the concave printing plate 407. One end of the limiting guide rod 408 is slidably connected to the outer wall of the installation base 405. Positioning guide rods 409 are symmetrically installed on the outer wall of the installation base 405 on one side of the electric control cylinder 406. The connection mode between the positioning guide rod 409 and the installation base 405 is a sliding connection. A positioning plate 410 is installed at one end of the positioning guide rod 409. Limiting springs 411 are symmetrically installed on the outer wall of the positioning plate 410, and the positioning guide rod 409 is located in the inner cavity of the limiting spring 411. A magnetic guiding block 412 is installed on the bottom outer wall of the positioning plate 410. Two groups of displacement sensors 413 are provided and are respectively located on the opposite inner walls of the mounting bracket 1, and the displacement sensor 413 is located on one side of the conveyor 2. An electric control telescopic cylinder 414 is installed on the outer wall of the installation base 405. One end of the electric control telescopic cylinder 414 passes through the installation base 405 and extends to the outer wall of the installation base 405 to be connected to the positioning plate 410; Under the action of the above structural features and connection relationships, the displacement sensor 413 generates data on the position and displacement changes of the fixing assembly 5 and the printing assembly 4. First, the control panel 3 controls the operation of the servo motor 403 to move the installation base 405 horizontally to directly above the rotating base 502. Subsequently, the installation base 405 and the rotating base 502 are kept moving synchronously with each other so that the speeds and directions of the packaging bag and the printing structure are the same and they are relatively stationary to each other. Subsequently, the control panel 3 controls the operation of the electric control cylinder 406 so that the electric control cylinder 406 drives the concave printing plate 407 to perform printing.

[0020] In this embodiment, specifically refer to Figure 1 , Figure 3 , Figure 6 and Figure 8, the fixing component 5 includes a mounting base plate 501. There are multiple groups of mounting base plates 501, which are respectively located on the outer wall of the conveyor 2. A rotating base 502 is installed on the outer wall of the mounting base plate 501. Guide grooves 503 are provided on the opposite outer walls of the rotating base 502. A magnetic adsorption block 504 is installed on the inner wall of the guide groove 503, and the magnetic adsorption block 504 is located directly below the magnetic guide block 412. The connection method between the magnetic adsorption block 504 and the magnetic guide block 412 is magnetic connection. Mounting brackets 505 are installed on the opposite outer walls of the rotating base 502. The mounting brackets 505 are located on one side of the guide groove 503. Guide sleeves 506 are provided on the outer walls of the mounting brackets 505. A sliding rod 507 is slidably connected to the inner wall of the guide sleeve 506. A pressing fixing block 508 is installed at one end of the sliding rod 507. Sliding sleeves 509 are installed on the opposite side walls of the pressing fixing block 508. The sliding sleeves 509 are slidably connected to the side walls of the mounting brackets 505. A connecting rod 510 is installed on the outer wall of the pressing fixing block 508. One end of the connecting rod 510 passes through the mounting bracket 505 and extends to the outer wall of the mounting bracket 505 to be connected with a counterweight block 511. A magnetic fixing block 512 is installed on the inner wall of the mounting bracket 505. The magnetic fixing block 512 is located directly above the pressing fixing block 508. The connection method between the magnetic fixing block 512 and the pressing fixing block 508 is magnetic connection.

[0021] Based on the above structural features and connection relationships, when the magnetic guide block 412 drives the positioning plate 410 to insert into the inner wall of the guide groove 503 for fixation, and then the positions of the printing component 4 and the fixing component 5 are aligned. Since the fixing component 5 will have a slight displacement due to vibration when the conveyor 2 moves, when the magnetic guide block 412 drives the positioning plate 410 to insert into the inner wall of the guide groove 503 for fixation, it will cause the positioning plate 410 to apply a thrust force through the guide groove 503, thereby causing the rotating base 502 to displace and align the positions of the printing component 4 and the fixing component 5. Based on the above structural features and connection relationships, the recognition camera 7 generates image data of the packaging bag on the base surface of the fixing component 5, and then the recognition camera 7 generates an electrical signal that is conducted to the control panel 3 through a wire. At the same time, the control panel 3 displays the image of the packaging bag to facilitate the operator to more intuitively observe the printing of the packaging bag. Among them, support feet pads 8 are provided at the bottom corners of the mounting bracket 1. The control panel 3 is electrically connected to the servo motor 403, the electric control cylinder 406, the conveyor 2, the electric control telescopic cylinder 414, the displacement sensor 413, and the recognition camera 7 through wires. Under the action of the electrical connection, the device is powered on, and then the control panel 3 controls the servo motor 403, the electric control cylinder 406, the displacement sensor 413, and the recognition camera 7 to be powered on and operate.

[0022] When the conveying device for packaging bag printing production in this solution is working, support foot pads 8 are arranged at the bottom corners of the mounting bracket 1. Under the action that the control panel 3 is electrically connected to the servo motor 403, the electric control cylinder 406, the conveyor 2, the electric control telescopic cylinder 414, the displacement sensor 413 and the identification camera 7 through wires, the device is powered on. Then, the control panel 3 controls the servo motor 403, the electric control cylinder 406, the displacement sensor 413 and the identification camera 7 to operate electrically; A magnetic fixing block 512 is installed on the inner wall of the mounting frame 505. The magnetic fixing block 512 is located directly above the pressing fixing block 508. Under the action that the magnetic fixing block 512 and the pressing fixing block 508 are magnetically connected, the packaging bag is placed on the base surface of the rotating base 502. Then, the counterweight block 511 is pressed, so that the counterweight block 511 drives the pressing fixing block 508 to move downward through the connecting rod 510. At the same time, the pressing fixing block 508 and the magnetic fixing block 512 are disconnected, which will cause the pressing fixing block 508 to move downward on the side wall of the sliding sleeve 509, so that the pressing fixing block 508 moves downward to fix the packaging bag. At the same time, the control panel 3 controls the conveyor 2 to operate, so that the conveyor 2 drives the fixing assembly 5 to move for easy printing; When the fixing assembly 5 is above the conveyor 2, the pressing fixing block 508 presses and fixes the packaging bag under the action of gravity. When the fixing assembly 5 is below the conveyor 2, under the action of gravity, the counterweight block 511 drives the pressing fixing block 508 to move in the reverse direction through the connecting rod 510. Then, the pressing fixing block 508 drives the sliding sleeve 509 to move. And when the pressing fixing block 508 moves to one side of the magnetic fixing block 512, the magnetic fixing block 512 magnetically adsorbs and fixes the pressing fixing block 508, so that the pressing fixing block 508 is reset. When the packaging bag needs to be printed and fixed above the conveyor 2, only the counterweight block 511 in the pressing fixing assembly 5 needs to be pressed to fix the packaging bag. And after printing is completed, when the conveyor 2 drives the fixing assembly 5 to move to the lower part, the fixing of the packaging bag is lost, and at the same time, the pressing fixing block 508 in the fixing assembly 5 is reset, thus solving the problem that the existing clamping devices are all mechanically fixed by power components, and the external power components will make the device less energy-saving and environmentally friendly; There are two sets of displacement sensors 413, which are respectively located on the opposite inner walls of the mounting bracket 1. Under the action that the displacement sensors 413 are located on one side of the conveyor 2, the displacement sensors 413 generate data on the displacement of the fixing component 5, and at the same time, the displacement sensors 413 generate data on the displacement of the printing component 4, so that the displacement sensors 413 generate electrical signals and conduct them to the control panel 3 through wires. First, the control panel 3 will cause the control panel 3 to control the servo motor 403 to operate according to the position values generated by the displacement sensors 413, so that the mounting base 405 moves directly above the rotating base 502. Subsequently, according to the parameters set inside the control panel 3, when the servo motor 403 operates, one end of the servo motor 403 will drive the threaded rod 404 to operate, and then the threaded rod 404 will drive the mounting base 405 to operate through threaded connection, so that the mounting base 405 moves horizontally on the inner wall of the sliding track 401, so that the mounting base 405 and the rotating base 502 move synchronously with each other, so that the speed and direction of the packaging bag and the printing structure are the same, and they are relatively stationary to each other. Subsequently, the control panel 3 controls the electric control cylinder 406 to operate, so that the electric control cylinder 406 drives the concave printing plate 407 to print. The device can convey and print the packaging bag, thus solving the problem that the existing conveying device conveys the packaging bag, conveys the packaging bag to a suitable position and then performs printing processing, but the steps of the printing process are numerous, which will result in low printing processing efficiency and cannot print while conveying. An electric control telescopic cylinder 414 is installed on the outer wall of the mounting base 405. Under the action that one end of the electric control telescopic cylinder 414 penetrates the mounting base 405 and extends to the outer wall of the mounting base 405 to be connected with a positioning plate 410, the control panel 3 controls the electric control telescopic cylinder 414 to operate, so that one end of the electric control telescopic cylinder 414 drives the positioning plate 410 to move downward. Subsequently, a guiding groove 503 is formed on the opposite outer walls of the rotating base 502. A magnetic adsorption block 504 is installed on the inner wall of the guiding groove 503, and the magnetic adsorption block 504 is located directly below the magnetic guiding block 412. Under the action that the magnetic adsorption block 504 and the magnetic guiding block 412 are magnetically connected, when the positioning plate 410 drives the magnetic guiding block 412 to move downward, when the magnetic guiding block 412 and the magnetic adsorption block 504 generate magnetic adsorption, the magnetic guiding block 412 will drive the positioning plate 410 to be inserted into the inner wall of the guiding groove 503 for fixation, so that the positions of the printing component 4 and the fixing component 5 are aligned. When one end of the electric control cylinder 406 drives the concave printing plate 407 to move downward, the concave printing plate 407 will print the packaging bag, and the practicability is better, thus solving the problem that the conveyed packaging bag still needs to be manually adjusted in position to align with the printing plate and fixed for subsequent printing. This process is not only time-consuming and laborious, but also reduces the practicability of the device.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveying device for packaging bag printing production, including an installation bracket (1), characterized in that: A conveyor (2) is installed on the top outer wall of the mounting bracket (1), a control panel (3) is installed on the side wall of the mounting bracket (1), a printing assembly (4) is installed on the top outer wall of the mounting bracket (1), a fixing assembly (5) is arranged on the outer wall of the conveyor (2), a fixing plate (6) is installed on the side wall of the mounting bracket (1), the surface of the fixing plate (6) is inclined 45 degrees relative to the mounting bracket (1), and an identification camera (7) is installed on the outer wall of the fixing plate (6); The fixing assembly (5) fixes the packaging bag, the printing assembly (4) moves synchronously with the conveyor (2), and at the same time the printing assembly (4) prints on the packaging bag; The printing assembly (4) includes a sliding track (401) and a displacement sensor (413). The sliding track (401) is installed on the opposite outer walls of the mounting bracket (1). Mounting plates (402) are installed on the opposite outer walls of the sliding track (401). A servo motor (403) is installed on the outer wall of the mounting plate (402). A threaded rotating rod (404) is rotatably connected to the opposite inner walls of the mounting plate (402). One end of the threaded rotating rod (404) penetrates through the mounting plate (402) and extends to the outer wall of the mounting plate (402) to be connected with the servo motor (403). A mounting base (405) is threadedly connected to the outer wall of the threaded rotating rod (404) between the mounting plates (402), and the mounting base (405) is slidably connected to the inner wall of the sliding track (401). An electric control cylinder (406) is embedded in the outer wall of the mounting base (405). One end of the electric control cylinder (406) penetrates through the mounting base (405) and extends to the outer wall of the mounting base (405) to be connected with a concave printing plate (407). Limiting guide rods (408) are installed on the opposite outer walls of the concave printing plate (407), and one end of the limiting guide rod (408) is slidably connected to the outer wall of the mounting base (405).

2. The conveying device for packaging bag printing production according to claim 1, characterized in that: On one side of the electric control cylinder (406) and symmetrically installed on the outer wall of the mounting base (405) are positioning guide rods (409). The connection mode of the positioning guide rod (409) and the mounting base (405) is a sliding connection. A positioning plate (410) is installed at one end of the positioning guide rod (409). Limiting springs (411) are symmetrically installed on the outer wall of the positioning plate (410), and the positioning guide rod (409) is located in the inner cavity of the limiting spring (411). A magnetic guiding block (412) is installed on the bottom outer wall of the positioning plate (410).

3. The conveying device for packaging bag printing production according to claim 2, characterized in that: Two sets of displacement sensors (413) are arranged and are respectively located on the opposite inner walls of the mounting bracket (1), and the displacement sensor (413) is located on one side of the conveyor (2). An electric control telescopic cylinder (414) is installed on the outer wall of the mounting base (405). One end of the electric control telescopic cylinder (414) penetrates through the mounting base (405) and extends to the outer wall of the mounting base (405) to be connected with the positioning plate (410).

4. The conveying device for packaging bag printing production according to claim 3, characterized in that: The fixed component (5) includes a mounting base plate (501). Multiple groups of the mounting base plates (501) are provided and are respectively located on the outer wall of the conveyor (2). A rotating base (502) is mounted on the outer wall of the mounting base plate (501). Guide grooves (503) are formed on the opposite outer walls of the rotating base (502). A magnetic adsorption block (504) is mounted on the inner wall of the guide groove (503), and the magnetic adsorption block (504) is located directly below the magnetic guide block (412).

5. The conveying device for packaging bag printing production according to claim 4, characterized in that: The connection mode between the magnetic adsorption block (504) and the magnetic guide block (412) is magnetic connection. Mounting frames (505) are mounted on the opposite outer walls of the rotating base (502). The mounting frames (505) are located on one side of the guide grooves (503). Guide sleeves (506) are formed on the outer walls of the mounting frames (505).

6. The conveying device for packaging bag printing production according to claim 5, wherein: A sliding rod (507) is slidably connected to the inner wall of the guide sleeve (506). A downward pressing fixed block (508) is mounted at one end of the sliding rod (507). Sliding sleeves (509) are mounted on the opposite side walls of the downward pressing fixed block (508), and the sliding sleeves (509) are slidably connected to the side walls of the mounting frame (505).

7. The conveying device for packaging bag printing production according to claim 6, characterized in that: A connecting rod (510) is mounted on the outer wall of the downward pressing fixed block (508). One end of the connecting rod (510) penetrates through the mounting frame (505) and extends to the outer wall of the mounting frame (505) to be connected with a counterweight block (511). A magnetic fixed block (512) is mounted on the inner wall of the mounting frame (505). The magnetic fixed block (512) is located directly above the downward pressing fixed block (508). The connection mode between the magnetic fixed block (512) and the downward pressing fixed block (508) is magnetic connection.

8. The conveying device for packaging bag printing production according to claim 7, characterized in that: Support feet pads (8) are provided at the bottom corners of the mounting bracket (1). The control panel (3) is electrically connected to a servo motor (403), an electric control cylinder (406), a conveyor (2), an electric control telescopic cylinder (414), a displacement sensor (413), and an identification camera (7) through wires.