Rapid sealing device for degradable plastic packaging bag production

Abstract

The utility model discloses a quick sealing device for degradable plastic packaging bag production, which is characterized in that a packaging bag input port is arranged on the left side of a main frame, a press-fit exhaust roller for extruding air in a packaging bag is arranged on the right side of the packaging bag input port, and a heat sealing roller is arranged on the right side of the press-fit exhaust roller; according to the rapid sealing device for production of the degradable plastic packaging bag, the situation that in the prior art, in the actual using process, an air cylinder moving up and down is still used for heat sealing, in the heat sealing process, the bag needs to be stopped to wait for heat sealing to be finished and needs to be stopped, and the heat sealing efficiency is low is improved; the conveying device does not need to be started and stopped repeatedly in the heat sealing process, the packaging bag is bonded through the rotating heat sealing roller in the conveying process, the working efficiency is improved, and the economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production equipment, in particular to a rapid sealing device for the production of degradable plastic packaging bags. Background Art

[0002] Currently, Chinese Patent No. CN201710045524.6 discloses a packaging bag sealing device comprising a frame, characterized in that a cylinder is provided at the bottom of the frame, a push rod of the cylinder is connected to a transversely arranged transverse bag-supporting balancing cylinder, the push rods of the transverse bag-supporting balancing cylinders being connected at both ends to longitudinally arranged longitudinal bag-supporting balancing cylinders, the push rods of the longitudinal bag-supporting balancing cylinders being connected at both ends to bag-supporting plates via connectors, a bag-pressing cylinder being provided on the connectors, a pressure plate being provided on the push rod of the bag-pressing cylinder, the pressure plate corresponding to the bag-supporting plates, and a bag-folding cylinder being provided on the frame, the push rod of the bag-folding cylinder being connected to a bag-folding plate. This packaging bag sealing device utilizes a combined cylinder structure, capable of accurately and efficiently sealing packaging bags, resulting in a smooth, wrinkle-free bag opening and improved packaging quality. However, in actual use, the prior art still suffers from the problem that the use of an up-and-down moving cylinder for heat sealing requires the bag to stop and wait for the heat sealing to complete, resulting in a pause and relatively low heat sealing efficiency. Utility Model Content

[0003] Therefore, in response to the above-mentioned problems, the present invention proposes a rapid sealing device for the production of degradable plastic packaging bags, which solves the technical problem that in actual use, the existing technology still uses a cylinder that moves up and down for heat sealing. During the heat sealing process, the bag needs to stop and wait for the heat sealing to be completed, which requires a pause and has a relatively low heat sealing efficiency.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a rapid sealing device for the production of degradable plastic packaging bags, the structure of which includes a main frame, a packaging bag input port, a pressing and exhaust roller, a heat sealing roller, a heat sealing strip, a positioning roller, a tensioning rod, a connecting rod, and a rotating seat. The packaging bag input port is provided on the left side of the main frame, the packaging bag input port is provided on the right side of the packaging bag input port for squeezing out the air in the packaging bag, the pressing and exhaust roller is provided on the right side of the pressing and exhaust roller, the heat sealing roller is provided on the heat sealing roller for heating and heat sealing the packaging bag during rotation, the positioning roller is provided on the right side of the heat sealing roller, the tensioning rod is provided on the right side of the positioning roller, the tensioning rod is connected to the connecting rod, the lower end of the connecting rod is connected to the rotating seat, and a torsion spring for providing torsion is provided in the rotating seat.

[0005] Furthermore, the pressing and degassing rollers are provided in two parts, the upper and lower pressing and degassing rollers being pressed against each other.

[0006] Furthermore, an extruded rubber layer is provided on the surface of the laminating and degassing roller, and the thickness of the extruded rubber layer is 1-3 cm.

[0007] Furthermore, the heat sealing strip has a stainless steel arc surface structure, and a PTC electric heating strip is arranged on the inner side thereof.

[0008] Furthermore, the heat sealing roller is provided with two upper and lower identical structures, the two heat sealing rollers rotate in opposite directions, and the positions of the heat sealing strips thereof correspond to each other.

[0009] Furthermore, the tensioning rod is a stainless steel round rod structure with a smooth surface.

[0010] Furthermore, the pressing and exhausting roller and the heat-sealing roller are respectively connected to the main frame through bearings, and are respectively connected to their own driving motors.

[0011] By adopting the above-mentioned technical solution, the beneficial effects of the utility model are as follows: the rapid sealing device for the production of degradable plastic packaging bags improves the existing technology. In actual use, there is still a problem that the heat sealing is performed using an up and down moving cylinder. During the heat sealing process, the bag needs to stop and wait for the heat sealing to be completed, which requires a pause and the heat sealing efficiency is relatively low. The conveying equipment set during the heat sealing process does not need to be repeatedly started and stopped. During the conveying process, the packaging bags are bonded by the rotating heat sealing roller, which improves work efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] In the figure: 1. Main frame; 2. Packaging bag input port; 3. Pressing and exhausting roller; 4. Heat sealing roller; 5. Heat sealing strip; 6. Positioning roller; 7. Tensioning rod; 8. Connecting rod; 9. Rotating seat. DETAILED DESCRIPTION

[0014] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0015] refer to Figure 1, this embodiment provides a rapid sealing device for the production of degradable plastic packaging bags, whose structure includes a main frame 1, a packaging bag input port 2, a pressing and exhausting roller 3, a heat sealing roller 4, a heat sealing strip 5, a positioning roller 6, a tensioning rod 7, a connecting rod 8, and a rotating seat 9. The packaging bag input port 2 is provided on the left side of the main frame 1, and the pressing and exhausting roller 3 for squeezing out the air in the packaging bag is provided on the right side of the packaging bag input port 2. The heat sealing roller 4 is provided on the right side of the pressing and exhausting roller 3. The heat sealing roller 4 is provided with a heat sealing strip 5 for heating and heat-sealing the packaging bag during rotation. The positioning roller 6 is provided on the right side of the heat sealing roller 4. The tensioning rod 7 is provided on the right side of the positioning roller 6. The tensioning rod 7 is connected to the connecting rod 8. The lower end of the connecting rod 8 is connected to the rotating seat 9. A torsion spring for providing torsion is provided in the rotating seat 9.

[0016] The pressing and degassing rollers 3 are provided in two, upper and lower parts, and the upper and lower pressing and degassing rollers 3 press each other.

[0017] The surface of the pressing and exhausting roller 3 is provided with an extruded rubber layer, the thickness of which is 1-3 cm.

[0018] The heat sealing strip 5 has a stainless steel arc surface structure, and a PTC electric heating strip is arranged inside the heat sealing strip 5 .

[0019] The heat sealing rollers 4 are provided with two upper and lower identical structures. The two heat sealing rollers 4 rotate in opposite directions, and the positions of the heat sealing strips 5 thereof correspond to each other.

[0020] The tensioning rod 7 is a stainless steel round rod structure with a smooth surface.

[0021] The pressing and exhausting roller 3 and the heat sealing roller 4 are connected to the main frame 1 through bearings, and are connected to their own driving motors.

[0022] The present invention relates to a rapid sealing device for the production of degradable plastic packaging bags, which improves the existing technology. In actual use, the existing technology still has the problem of using an up-and-down moving cylinder for heat sealing. During the heat sealing process, the bag needs to stop and wait for the heat sealing to be completed, which requires a pause and has a relatively low heat sealing efficiency. The conveying equipment does not need to be repeatedly started and stopped during the heat sealing process. During the conveying process, the packaging bags are bonded by the rotating heat sealing roller 4, which improves work efficiency and economic benefits.

[0023] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A rapid sealing device for producing biodegradable plastic packaging bags, characterized by: Its structure includes a main frame, a packaging bag input port, a pressing and exhaust roller, a heat sealing roller, a heat sealing strip, a positioning roller, a tensioning rod, a connecting rod, and a rotating seat. The packaging bag input port is arranged on the left side of the main frame, the pressing and exhaust roller for squeezing out the air in the packaging bag is arranged on the right side of the packaging bag input port, the heat sealing roller is arranged on the right side of the pressing and exhaust roller, the heat sealing roller is provided with a heat sealing strip for heating and heat sealing the packaging bag during rotation, the positioning roller is arranged on the right side of the heat sealing roller, the tensioning rod is arranged on the right side of the positioning roller, the tensioning rod is connected to the connecting rod, the lower end of the connecting rod is connected to the rotating seat, and a torsion spring for providing torsion is arranged in the rotating seat.

2. A rapid sealing device for producing biodegradable plastic packaging bags according to claim 1, characterized in that: The pressing and exhausting rollers are provided in two, upper and lower parts, and the upper and lower pressing and exhausting rollers press each other.

3. The rapid sealing device for producing biodegradable plastic packaging bags according to claim 1, characterized in that: The surface of the pressing and exhausting roller is provided with an extruded rubber layer with a thickness of 1-3 cm.

4. The rapid sealing device for producing biodegradable plastic packaging bags according to claim 1, characterized in that: The heat sealing strip has a stainless steel arc surface structure, and a PTC electric heating strip is arranged on the inner side thereof.

5. The rapid sealing device for producing biodegradable plastic packaging bags according to claim 1, characterized in that: The heat sealing rollers are provided with two identical structures, the upper and lower heat sealing rollers rotate in opposite directions, and the positions of the heat sealing strips thereof correspond to each other.

6. The rapid sealing device for producing biodegradable plastic packaging bags according to claim 1, characterized in that: The tensioning rod is a stainless steel round rod structure with a smooth surface.

7. The rapid sealing device for producing biodegradable plastic packaging bags according to claim 1, characterized in that: The pressing and exhausting roller and the heat-sealing roller are respectively connected to the main frame through bearings, and are respectively connected to their own driving motors.

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