Packaging bag printing device

Abstract

The utility model discloses a packaging bag printing device which comprises a rotary table support, a feeding machine frame, a screen printing machine and a discharging machine frame are sequentially arranged on the periphery of the rotary table support, grabbing mechanisms are arranged on the feeding machine frame and the discharging machine frame respectively, a rotary table and a stepping motor are arranged on the rotary table support, and automatic conveying of packaging bags among all working procedures is achieved. Meanwhile, the grabbing mechanism can automatically and accurately grab and place the packaging bags, the bag pressing mechanism can automatically press the packaging bags, the stability of the packaging bags in the printing process is guaranteed, the production efficiency is greatly improved through the mechanisms, the production cost is reduced, and the automatic packaging bag feeding device has remarkable advantages under the small-batch and customized printing requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging and printing, in particular to a packaging bag printing device. Background Art

[0002] As an important part of product packaging, the appearance design and printing quality of packaging bags directly affect the attractiveness and market competitiveness of products. Traditional packaging bag printing equipment often uses gravure printing or flexographic printing technology. Although these technologies have high efficiency in mass production, their plate making costs are high, and the debugging and maintenance of printing equipment are also complicated. They are not suitable for small-batch, customized packaging bag printing in the current market.

[0003] As an ancient printing technology, screen printing technology has the advantages of simple plate making, low cost and strong adaptability. However, traditional screen printing equipment has deficiencies in automation and production efficiency, and it is difficult to meet the requirements of modern industrial production. Therefore, it is of great significance to upgrade the screen printing equipment to enable it to have automatic loading, printing, drying and unloading functions to improve the printing efficiency and quality of small batches and customized packaging bags. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, provide a packaging bag printing device, and solve the problems raised in the background technology.

[0005] In order to achieve the above-mentioned technical purpose, the technical solution of the utility model provides a packaging bag printing device, including a turntable bracket, a loading rack, a screen printing machine and a unloading rack are sequentially arranged around the turntable bracket, and the loading rack and the unloading rack are both provided with a grabbing mechanism, a turntable and a stepper motor are arranged on the turntable bracket, the center of the turntable is connected to the output shaft of the stepper motor, and a plurality of bag placing plates are arranged in a circular array with the center of the turntable as the center, and the bag placing plates are arranged along the radial direction of the turntable, and a lining plate is arranged on the upper surface of the bag placing plates, and a bag pressing mechanism is arranged on the bag placing plates on both sides of the lining plate for pressing the side edges of the packaging bags thereon, and a locking mechanism is arranged below the bag placing plates, and the locking mechanism is connected to the bag pressing mechanism, and an unlocking push plate cooperating with the locking mechanism is arranged on the grabbing mechanism.

[0006] Furthermore, the bag pressing mechanism includes a sleeve, which passes through the bag placing plate, a rotating shaft is arranged inside the sleeve, a spiral groove is opened on the cylinder wall of the sleeve, a sliding column matching the spiral groove is arranged on the rotating shaft, a pressure plate is arranged at the upper end of the rotating shaft, and a driven gear is arranged at the lower end, and the locking mechanism is meshed with the driven gear.

[0007] Furthermore, the locking mechanism includes a push plate, a positioning bolt is provided on the lower surface of the bag placing plate, a guide groove is provided on the push plate, the positioning bolt passes through the guide groove and is connected to the bag placing plate, L-shaped support plates are provided on both sides of the push plate, a tooth plate is provided on the L-shaped support plate, the tooth plate is meshed with the driven gear, a limiting block is provided on the bag placing plate, and a return spring is provided between the push plate and the limiting block.

[0008] Furthermore, the grabbing mechanism includes a telescopic bracket, a guide rod is provided on the telescopic bracket, a grabbing support plate is slidably provided on the guide rod, a loading cylinder is provided at one end of the telescopic bracket, the piston rod of the loading cylinder is connected to the grabbing support plate, a vertical lifting cylinder is provided on the grabbing support plate, a T-shaped bracket is provided on the piston rod of the lifting cylinder, suction cups are provided at three ends of the T-shaped bracket, and the unlocking push plate is provided on the side of the grabbing support plate adjacent to the loading cylinder.

[0009] Furthermore, a drying mechanism is provided between the screen printing machine and the unloading frame, and a conveyor belt is provided below the grabbing mechanism.

[0010] Compared with the prior art, the beneficial effects of the utility model include:

[0011] The packaging bag printing device of the present invention integrates the processes of loading, printing, drying and unloading, and utilizes the design of a turntable and a stepper motor to realize the automatic transmission of packaging bags between various processes; at the same time, the grabbing mechanism can automatically and accurately grab and place the packaging bags, while the bag pressing mechanism can automatically press the packaging bags to ensure their stability during the printing process. These mechanisms greatly improve production efficiency and reduce production costs, making the present invention have significant advantages under small-batch and customized printing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a packaging bag printing device provided by the utility model;

[0013] Figure 2 This is a schematic diagram of a grabbing mechanism of a packaging bag printing device provided by the utility model;

[0014] Figure 3 This is a schematic diagram of a bag pressing mechanism of a packaging bag printing device provided by the utility model;

[0015] Figure 4 This is a schematic diagram of a bag placing plate of a packaging bag printing device provided by the utility model;

[0016] Figure 5 The utility model is a bottom schematic diagram of a bag placing plate of a packaging bag printing device.

[0017] In the figure: DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Reference Figure 1 The utility model provides a packaging bag printing device, including a turntable bracket 1, and a feeding frame 2, a screen printer 3, a drying mechanism and a feeding frame 4 are sequentially arranged around the turntable bracket 1. The feeding frame 2 and the feeding frame 4 are both equipped with a grabbing mechanism 5 for automatic loading and unloading, and a conveyor belt is arranged below the grabbing mechanism 5 to transfer the packaging bag between various processes.

[0020] A turntable 102 and a stepper motor 101 are mounted on the turntable bracket 1. The center of the turntable 102 is connected to the output shaft of the stepper motor 101. A plurality of bag placing plates 6 are arranged in a circular array with the center of the turntable 102 as the center. The bag placing plates 6 are arranged along the radial direction of the turntable 102. Lining plates 602 are installed on the upper surface thereof for placing packaging bags. Bag pressing mechanisms 7 are arranged on the bag placing plates 6 on both sides of the lining plates 602 for pressing the sides of the packaging bags. The upper surface of the lining plates 602 is higher than the bag placing plates 6. After the bag pressing mechanism 7 presses the sides of the packaging bags, the upper end thereof is below the upper surface of the lining plates 602, so that the stability of the packaging bags during the printing process is ensured without affecting the operation of the screen printing machine 3. The turntable 102 is driven by the stepper motor 101 to rotate intermittently, so as to realize the automatic transmission of packaging bags between various workstations.

[0021] Reference Figure 2 The grabbing mechanism 5 includes a telescopic bracket 501, on which a guide rod 503 is provided. A grabbing support plate 504 is slidably provided on the guide rod 503. A feeding cylinder 502 is provided at one end of the telescopic bracket 501, and its piston rod is connected to the grabbing support plate 504. A vertical lifting cylinder 505 is provided on the grabbing support plate 504, and a T-shaped bracket 507 is provided on its piston rod. Suction cups 508 are provided at the three ends of the T-shaped bracket 507 for adsorbing the packaging bag, and an unlocking push plate 506 is installed on the side of the grabbing support plate 504 adjacent to the feeding cylinder 502.

[0022] Reference Figure 3The specific structure of the bag pressing mechanism 7 includes a sleeve 701, which penetrates the bag placing plate 6. A rotating shaft 702 is arranged in the sleeve 701, a spiral groove 706 is provided on the cylinder wall of the sleeve 701, a sliding column 705 matched with the spiral groove 706 is arranged on the rotating shaft 702, a pressing plate 703 is arranged at the upper end of the rotating shaft 702 for pressing the packaging bag; and a driven gear 704 is arranged at the lower end. When the rotating shaft 702 rotates in the sleeve 701, the sliding column 705 moves along the spiral groove 706, thereby realizing the up and down movement and steering of the pressing plate 703.

[0023] Reference Figure 4 , Figure 5 The lower surface of the bag placing plate 6 is provided with a positioning bolt 606 and a push plate 603. The push plate 603 is provided with a guide groove 605. The positioning bolt 606 passes through the guide groove 605 and is connected to the bag placing plate 6, so that the push plate 603 moves along the guide groove 605 below the bag placing plate 6. L-shaped support plates 609 are provided on both sides of the push plate 603. A tooth plate 604 is provided on the L-shaped support plate 609, and the tooth plate 604 is meshed with the driven gear 704.

[0024] When loading / unloading, the unlocking push plate 506 moves toward the bag placing plate 6, thereby pushing the push plate 603 to move toward the rotating disk 102. At this time, the tooth plate 604 moves synchronously, thereby driving the driven gear 704 to rotate, thereby controlling the release of the bag pressing mechanism 7. A limit block 607 is provided on the bag placing plate 6, and a reset spring 608 is provided between the push plate 603 and the limit block 607. The unlocking push plate 506 resets the push plate 603 after the push plate 603 is out of contact, and the bag pressing mechanism 7 is kept in a pressed state.

[0025] In order to facilitate the understanding of the present invention, the following Figure 1 - Figure 5 The working principle of this solution is described in detail:

[0026] During loading: the grabbing mechanism 5 on the loading frame 2 is driven by the telescopic bracket 501 and the loading cylinder 502 to move to the position of the packaging bag to be loaded; the lifting cylinder 505 drives the T-shaped bracket 507 to descend, so that the suction cup 508 contacts and adsorbs the packaging bag; after the grabbing mechanism 5 lifts the packaging bag to a certain height, the loading cylinder 502 drives the grabbing support plate 504 to move toward the idle bag plate 6 on the turntable 102; during the movement, the unlocking push plate 506 pushes the corresponding push plate 603, so that the tooth plate 604 moves and drives the driven gear 704 to rotate, thereby releasing the bag pressing mechanism 7; then the lifting cylinder 505 drives the T-shaped bracket 507 to rise and release the packaging bag; after the grabbing mechanism 5 is evacuated, the reset spring 608 pushes the push plate 603 to reset, and the bag pressing mechanism 7 presses the packaging bag again.

[0027] Subsequently, the stepper motor 101 drives the turntable 102 to rotate intermittently, and turns the loaded bag placing plate 6 to the working position of the screen printing machine 3; the screen printing machine 3 performs printing operations on the packaging bags; after printing, the turntable 102 continues to rotate, and turns the packaging bags to the drying mechanism for drying; the dried packaging bags are turned to the position of the unloading rack 4; the grabbing mechanism 5 on the unloading rack 4 repeats the actions in the loading process, unlocks the corresponding bag pressing mechanism 7, grabs and removes the packaging bags and places them on the conveyor belt, which is then transported to subsequent processes or storage areas by the conveyor belt.

[0028] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A packaging bag printing device, comprising a turntable bracket, a feeding frame, a screen printer and a feeding frame are sequentially arranged around the turntable bracket, and a gripping mechanism is arranged on both the feeding frame and the feeding frame, characterized in that: A turntable and a stepper motor are provided on the turntable bracket, the center of the turntable is connected to the output shaft of the stepper motor, a plurality of bag placing plates are arranged in a circular array with the center of the turntable as the center, the bag placing plates are arranged along the radial direction of the turntable, a lining plate is provided on the upper surface of the bag placing plates, and bag pressing mechanisms are provided on the bag placing plates on both sides of the lining plate for pressing the sides of the packaging bags thereon, a locking mechanism is provided below the bag placing plates, the locking mechanism is connected to the bag pressing mechanism, and an unlocking push plate cooperating with the locking mechanism is provided on the grabbing mechanism.

2. A packaging bag printing device according to claim 1, characterized in that: The bag pressing mechanism includes a shaft sleeve, which passes through the bag placing plate. A rotating shaft is arranged inside the shaft sleeve. A spiral groove is opened on the cylinder wall of the shaft sleeve. A sliding column matching the spiral groove is arranged on the rotating shaft. A pressure plate is arranged at the upper end of the rotating shaft, and a driven gear is arranged at the lower end. The locking mechanism is meshed with the driven gear.

3. A packaging bag printing device according to claim 2, characterized in that: The locking mechanism includes a push plate, a positioning bolt is provided on the lower surface of the bag placing plate, a guide groove is provided on the push plate, the positioning bolt passes through the guide groove and is connected to the bag placing plate, L-shaped support plates are provided on both sides of the push plate, a tooth plate is provided on the L-shaped support plate, the tooth plate is meshed with the driven gear, a limiting block is provided on the bag placing plate, and a reset spring is provided between the push plate and the limiting block.

4. A packaging bag printing device according to claim 2 or 3, characterized in that: The grabbing mechanism includes a telescopic bracket, a guide rod is provided on the telescopic bracket, a grabbing support plate is slidably provided on the guide rod, a loading cylinder is provided at one end of the telescopic bracket, a piston rod of the loading cylinder is connected to the grabbing support plate, a vertical lifting cylinder is provided on the grabbing support plate, a T-shaped bracket is provided on the piston rod of the lifting cylinder, suction cups are provided at three ends of the T-shaped bracket, and the unlocking push plate is provided on a side of the grabbing support plate adjacent to the loading cylinder.

5. A packaging bag printing device according to claim 4, characterized in that: A drying mechanism is arranged between the screen printing machine and the unloading frame, and a conveyor belt is arranged below the grabbing mechanism.

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