Conveying device for printing plastic bags

Abstract

The utility model discloses a conveying device for printing plastic bags, and relates to the technical field of conveying devices. The silk-screen printing machine comprises a machine frame, a conveying belt is arranged in the middle of the machine frame, a driving mechanism used for controlling the conveying belt to rotate is installed on the surface of the machine frame, a silk-screen printing machine body is fixedly installed on the back face of the machine frame, and a pressing assembly used for pressing a plastic bag is installed on the top face of the machine frame. A positioning assembly used for adjusting the position of the pressing assembly is arranged on the top face of the rack, an attaching assembly is longitudinally arranged on the front side wall of the rack in a penetrating mode, the driving mechanism comprises a motor, the motor is fixedly installed on the front face of the rack, and an output shaft of the motor is fixedly connected with a driving roller. According to the plastic bag printing device, the effect that plastic bags are continuously conveyed and printed conveniently is achieved in the using process, the plastic bags can be effectively limited, the situation that the plastic bags adhere to a silk screen plate is avoided, and therefore it is guaranteed that the plastic bags are normally printed.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation devices, in particular to a conveying device for printed plastic bags. Background Art

[0002] A bag is a sac for holding items. The materials used to make bags include plastic, leather, cloth, paper, etc. Since plastic is cheap, almost all bags on the market are made of plastic. However, with the continuous improvement of environmental protection concepts, people have also begun to realize the damage caused by plastic bags to the environment. However, considering that the production cost of environmentally friendly bags is much higher than that of plastic bags, most companies still adopt a business model that mainly produces plastic bags and supplements it with environmentally friendly bags.

[0003] Currently, plastic bags on the surface of a conveyor belt are generally printed by screen printing. During the conveyor printing process, the plastic bags are placed on the surface of the conveyor belt at equal intervals. The existing conveying device is difficult to effectively limit the plastic bags, resulting in the plastic bags being temporarily adhered to the bottom of the screen plate during printing. As the conveyor belt continues to run, the adhered plastic bags may fall on the surface of subsequent plastic bags, thereby affecting the subsequent printing of plastic bags.

[0004] For this reason, a conveying device for printing plastic bags is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology. The utility model provides a conveying device for printed plastic bags.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A conveying device for printing plastic bags comprises a frame, a conveying belt is arranged in the middle of the frame, a driving mechanism for controlling the rotation of the conveying belt is installed on the surface of the frame, a screen printing machine body is fixedly installed on the back of the frame, a pressing assembly for pressing the plastic bag is installed on the top of the frame, a positioning assembly for adjusting the position of the pressing assembly is arranged on the top of the frame, an attaching assembly is longitudinally penetrated through the front side wall of the frame, the pressing assembly comprises a sealing shell, and the sealing shell is fixedly installed on the back of the frame, an electric push rod is fixedly installed on the bottom surface of the sealing shell, a piston block is fixedly connected to the telescopic end of the electric push rod, and the surface of the piston block is in contact with the sealing The inner wall of the sealing shell is slidably connected, and a connecting pipe is fixedly connected to the top surface of the sealing shell, and a mounting rod is fixedly connected to the end of the connecting pipe. An oil chamber is opened at the bottom of the mounting rod, and the interior of the oil chamber is communicated with the connecting pipe. A T-shaped pressure strip is slidably connected to the inner wall of the oil chamber, and the bottom of the T-shaped pressure strip extends out from the inside of the oil chamber. The inside of the oil chamber above the T-shaped pressure strip, the inside of the connecting pipe and the top of the piston block are filled with hydraulic oil. The positioning assembly includes a fixed box, and the fixed box is fixedly mounted on the top surface of the frame, and the rear end of the mounting rod is slidably connected to the inner wall of the fixed box, and a screw rod is rotatably connected to the inner wall of the fixed box, and the screw rod is threadedly connected to the mounting rod, and a knob is fixedly connected to one end of the screw rod.

[0008] Furthermore, the driving mechanism includes a motor, and the motor is fixedly installed on the front side of the frame, the output shaft of the motor is fixedly connected to an active roller, and the surface of the active roller is engaged with the inner wall of the conveyor belt, the inner wall of the frame is also rotatably connected to a supporting roller and a tensioning roller, and both the supporting roller and the tensioning roller are engaged with the inner wall of the conveyor belt.

[0009] Furthermore, a non-stick strip is fixedly connected to the bottom surface of the T-shaped pressure strip, the non-stick strip is made of stainless steel, and the bottom surface of the non-stick strip is arc-shaped.

[0010] Furthermore, the attachment component includes an exhaust fan, and the exhaust fan is fixedly installed on the front of the frame, the air outlet end of the exhaust fan is fixedly connected to an air duct, the end of the air duct is fixedly connected to an air diffuser hood, and a through hole is opened through the surface of the conveyor belt.

[0011] The beneficial effects of the utility model are as follows:

[0012] The plastic bags to be printed are laid on the surface of the conveyor belt at equal intervals. The conveyor belt is controlled to rotate continuously by a driving mechanism to transport the plastic bags to the position of the screen printing machine body. The driving mechanism then stops running and uses the attachment component to operate so that the plastic bags can be tightly attached to the surface of the conveyor belt, so that the plastic bags can be laid flat and remain stable. The plastic bags are then printed by the screen printing machine body. After printing, before the screen plate of the screen printing machine body rises, the two ends of the plastic bag are clamped and fixed by a clamping component to prevent the plastic bag from rising with the screen plate. The pressing position of the clamping component can be adjusted by the positioning component. After printing is completed, the driving mechanism continues to drive the conveyor belt to run for subsequent printing. During use, the effect of facilitating continuous transmission and printing of the plastic bags is achieved, and the plastic bags can be effectively limited to avoid adhesion between the plastic bags and the screen plate, thereby ensuring normal printing of the plastic bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a front cross-sectional view of the structure of the utility model;

[0015] Figure 3 It is a rear view of the structure of the utility model;

[0016] Figure 4 It is a side sectional view of the mounting rod structure of the utility model;

[0017] Figure 5 It is a top sectional view of the structure of the positioning assembly of the utility model;

[0018] Figure 6 This is a front cross-sectional view of the sealing shell structure of the utility model;

[0019] Figure numerals: 1. frame; 2. transmission belt; 3. driving mechanism; 301. motor; 302. active roller; 303. supporting roller; 304. tensioning roller; 4. screen printing machine body; 5. clamping assembly; 501. sealing shell; 502. electric push rod; 503. piston block; 504. connecting pipe; 505. mounting rod; 506. T-shaped pressure strip; 507. non-stick strip; 508. oil chamber; 6. positioning assembly; 601. fixing box; 602. screw rod; 603. knob; 7. attachment assembly; 701. exhaust fan; 702. air duct; 703. air diffuser hood; 704. through hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 5As shown, a conveying device for printed plastic bags includes a frame 1, a conveying belt 2 is arranged in the middle of the frame 1, a driving mechanism 3 for controlling the rotation of the conveying belt 2 is installed on the surface of the frame 1, a screen printing machine body 4 is fixedly installed on the back of the frame 1, a pressing component 5 for pressing the plastic bag is installed on the top surface of the frame 1, a positioning component 6 for adjusting the position of the pressing component 5 is arranged on the top surface of the frame 1, and an attachment component 7 is longitudinally penetrated through the front side wall of the frame 1. More specifically, the plastic bags to be printed are laid on the surface of the conveyor belt 2 at equal intervals, and the conveyor belt 2 is controlled to rotate continuously by the driving mechanism 3 to transport the plastic bags to the position of the screen printing machine body 4. Then the driving mechanism 3 is suspended and the attachment component 7 is used to operate so that the plastic bags can be tightly attached to the surface of the conveyor belt 2, so that the plastic bags can be laid flat and remain stable. Then the plastic bags are printed by the screen printing machine body 4. After printing, before the screen plate of the screen printing machine body 4 rises, the two ends of the plastic bag are clamped and fixed by the clamping component 5 to prevent the plastic bag from rising with the screen plate. The pressing position of the clamping component 5 can be adjusted by the positioning component 6. After printing, the driving mechanism 3 continues to drive the conveyor belt 2 to operate for subsequent printing.

[0026] The driving mechanism 3 includes a motor 301, and the motor 301 is fixedly installed on the front of the frame 1. The output shaft of the motor 301 is fixedly connected to the driving roller 302, and the surface of the driving roller 302 is meshed with the inner wall of the conveyor belt 2. The inner wall of the frame 1 is also rotatably connected to the supporting roller 303 and the tensioning roller 304, and the supporting roller 303 and the tensioning roller 304 are both meshed with the inner wall of the conveyor belt 2. It should be noted that the driving roller 302 is driven to rotate by the motor 301, thereby driving the conveyor belt 2 to rotate continuously, realizing the conveyance of the plastic bags, the supporting roller 303 is used to support the conveyor belt 2, and the tensioning roller 304 is used to tension the conveyor belt 2.

[0027] The clamping assembly 5 includes a sealing shell 501, and the sealing shell 501 is fixedly installed on the back of the frame 1, an electric push rod 502 is fixedly installed on the bottom surface of the sealing shell 501, the telescopic end of the electric push rod 502 is fixedly connected to a piston block 503, and the surface of the piston block 503 is slidably connected to the inner wall of the sealing shell 501, the top surface of the sealing shell 501 is fixedly connected to a connecting pipe 504, the end of the connecting pipe 504 is fixedly connected to a mounting rod 505, an oil chamber 508 is provided at the bottom of the mounting rod 505, and the interior of the oil chamber 508 is connected to the connecting pipe 504, a T-shaped pressure strip 506 is slidably connected to the inner wall of the oil chamber 508, and the bottom of the T-shaped pressure strip 506 extends out from the inside of the oil chamber, and the inside of the oil chamber 508 above the T-shaped pressure strip 506, the inside of the connecting pipe 504 and the top of the piston block 503 are filled with hydraulic oil. More specifically, the electric push rod 502 is operated to drive the piston block 503 to move upward, so that the hydraulic oil is squeezed into the oil chamber in the mounting rod 505 along the inside of the connecting pipe 504. The volume of the hydraulic oil in the oil chamber continues to increase, which will squeeze the T-shaped pressure strip 506. Then the hydraulic oil will push the T-shaped pressure strip 506 to move downward, so that the bottom of the T-shaped pressure strip 506 is pressed against the surface of the plastic bag, preventing the plastic bag from sticking and rising along the screen plate of the screen printing machine body 4.

[0028] The bottom surface of the T-shaped pressure strip 506 is fixedly connected with a non-stick strip 507, which is made of stainless steel and has an arc-shaped bottom surface. It should be noted that the surface of the stainless steel non-stick strip 507 is relatively smooth and is not easy to adhere to the surface of the plastic bag, and the bottom of the non-stick strip 507 is in an arc shape, which is in line contact with the surface of the plastic bag, and is even less likely to cause adhesion.

[0029] The positioning assembly 6 includes a fixing box 601, and the fixing box 601 is fixedly mounted on the top surface of the frame 1, and the rear end of the mounting rod 505 is slidably connected to the inner wall of the fixing box 601, and the inner wall of the fixing box 601 is rotatably connected with a screw rod 602, and the screw rod 602 is threadedly connected to the mounting rod 505, and one end of the screw rod 602 is fixedly connected with a knob 603. More specifically, by rotating the knob 603, the screw rod 602 is driven to rotate, and under the action of the thread, the mounting rod 505 will be controlled to slide along the inner wall of the fixing box 601, thereby adjusting the clamping position of the clamping assembly 5.

[0030] The attachment component 7 includes an exhaust fan 701, and the exhaust fan 701 is fixedly installed on the front of the frame 1, the air outlet end of the exhaust fan 701 is fixedly connected to the air duct 702, the end of the air duct 702 is fixedly connected to the air diffuser 703, and the surface of the conveyor belt 2 is penetrated by a through hole 704. It should be noted that the suction force is generated by the operation of the exhaust fan 701, and the air above the conveyor belt 2 will be sucked into the exhaust fan 701 through the air diffuser 703 and the air duct 702, so the air pressure below the plastic bag is low, and the plastic bag will be adsorbed and laid flat on the surface of the conveyor belt 2, thereby ensuring the printing effect.

[0031] In summary: the plastic bags to be printed are laid on the surface of the conveyor belt 2 at equal intervals, and the conveyor belt 2 is controlled to rotate continuously by the driving mechanism 3 to transport the plastic bags to the position of the screen printing machine body 4, and then the driving mechanism 3 is suspended, and the attachment component 7 is used to operate, so that the plastic bags can be tightly attached to the surface of the conveyor belt 2, so that the plastic bags can be laid flat and remain stable, and then the plastic bags are printed by the screen printing machine body 4. After printing, before the screen plate of the screen printing machine body 4 rises, the two ends of the plastic bag are clamped and fixed by the clamping component 5 to prevent the plastic bag from rising with the screen plate, and the pressing position of the clamping component 5 can be adjusted by the positioning component 6. After printing is completed, the driving mechanism 3 continues to drive the conveyor belt 2 to run for subsequent printing, which achieves the effect of facilitating the continuous transmission and printing of the plastic bags, can effectively limit the plastic bags, and avoids the adhesion of the plastic bags and the screen plate, thereby ensuring the normal printing of the plastic bags.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A conveying device for printed plastic bags, characterized in that: The invention comprises a frame (1), a conveyor belt (2) is arranged in the middle of the frame (1), a driving mechanism (3) for controlling the rotation of the conveyor belt (2) is installed on the surface of the frame (1), a screen printing machine body (4) is fixedly installed on the back of the frame (1), a pressing assembly (5) for pressing plastic bags is installed on the top surface of the frame (1), a positioning assembly (6) for adjusting the position of the pressing assembly (5) is arranged on the top surface of the frame (1), and the frame (1) is provided with a plurality of The front side wall is provided with an attachment component (7) running through the front side wall in the longitudinal direction. The pressing component (5) comprises a sealing shell (501), and the sealing shell (501) is fixedly mounted on the back of the frame (1). An electric push rod (502) is fixedly mounted on the bottom surface of the sealing shell (501). A piston block (503) is fixedly connected to the telescopic end of the electric push rod (502), and the surface of the piston block (503) is slidably connected to the inner wall of the sealing shell (501). The top surface of the sealing shell (501) is fixedly connected to a connecting rod (503). The end of the connecting pipe (504) is fixedly connected to a mounting rod (505), an oil chamber (508) is provided at the bottom of the mounting rod (505), and the interior of the oil chamber (508) is communicated with the connecting pipe (504), a T-shaped pressure strip (506) is slidably connected to the inner wall of the oil chamber (508), and the bottom of the T-shaped pressure strip (506) extends out from the inside of the oil chamber (508), and the interior of the oil chamber (508) above the T-shaped pressure strip (506) and the connecting pipe (504) are connected. The interior of the fixing box (601) and the top of the piston block (503) are filled with hydraulic oil, the positioning assembly (6) comprises a fixing box (601), and the fixing box (601) is fixedly mounted on the top surface of the frame (1), and the rear end of the mounting rod (505) is slidably connected to the inner wall of the fixing box (601), the inner wall of the fixing box (601) is rotatably connected to a screw rod (602), and the screw rod (602) is threadedly connected to the mounting rod (505), and one end of the screw rod (602) is fixedly connected to a knob (603).

2. A conveying device for printed plastic bags according to claim 1, characterized in that: The driving mechanism (3) comprises a motor (301), and the motor (301) is fixedly mounted on the front side of the frame (1); the output shaft of the motor (301) is fixedly connected to a driving roller (302), and the surface of the driving roller (302) is meshed with the inner wall of the conveyor belt (2); the inner wall of the frame (1) is also rotatably connected to a supporting roller (303) and a tensioning roller (304), and both the supporting roller (303) and the tensioning roller (304) are meshed with the inner wall of the conveyor belt (2).

3. A conveying device for printed plastic bags according to claim 1, characterized in that: The bottom surface of the T-shaped pressure strip (506) is fixedly connected with a non-stick strip (507), the non-stick strip (507) is made of stainless steel, and the bottom surface of the non-stick strip (507) is arc-shaped.

4. A conveying device for printed plastic bags according to claim 1, characterized in that: The attachment component (7) comprises an exhaust fan (701), and the exhaust fan (701) is fixedly mounted on the front of the frame (1); an air outlet end of the exhaust fan (701) is fixedly connected to an air duct (702); an end of the air duct (702) is fixedly connected to an air diffuser cover (703); and a through hole (704) is provided through the surface of the conveyor belt (2).

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