Plastic film heat sealing device

Abstract

The utility model discloses a plastic film heat sealing device, relates to the plastic film heat sealing technical field, including transport mechanism and heat sealing mechanism, said heat sealing mechanism is installed on the transport mechanism, be evenly equipped with a plurality of base on the transport mechanism, the left side and right side of base are both rotatingly connected with the bracket, the upper side of bracket is fixed with the clamping frame, two sliding groove blocks are fixed to the outer end of the clamping frame, and a clamping piece is arranged between the two sliding groove blocks. A plurality of base structures are additionally arranged on the lower conveying mechanism matched with the heat sealing mechanism, when a loading packaging bag is placed on the base, due to the fact that the self weight of the loading packaging bag flattens the bracket structures on the two sides, the bracket can assist the packaging bag to keep vertical due to the fact that the bracket is matched with the limiting strip blocks on the two sides, and the clamping frame structure connected with the upper side of the flattening bracket can not clamp the packaging bag. The clamping pieces on the two sides can achieve the purpose of completely flattening a bag opening, then the clamping pieces can be conveniently matched with a heat sealing mechanism on the upper portion to conduct heat sealing on the bag opening, and the problems that heat sealing of the bag opening is not attractive and the sealing effect is poor are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film heat sealing, in particular to a plastic film heat sealing device. Background Art

[0002] Plastic film heat-sealing devices are usually used to seal and heat-seal plastic films. Common applications include food packaging, pharmaceutical packaging, daily necessities packaging, etc. This device usually heats the plastic film through a heat-sealing strip or a heat-sealing blade to melt and bond together at a certain temperature, thereby achieving the effect of sealing and packaging. However, when the existing packaging bag film is heat-sealed, the bag opening cannot be completely flattened, resulting in the failure of the heat-sealed bag opening to overlap, and the heat-sealing effect is poor, the sealing of the packaging bag cannot be guaranteed, and the bag opening of the packaging bag is affected. Therefore, the utility model proposes a plastic film heat-sealing device to solve the problems mentioned in the above background technology. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and provides a plastic film heat sealing device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A plastic film heat-sealing device comprises a transport mechanism and a heat-sealing mechanism, wherein the heat-sealing mechanism is installed on the transport mechanism, and a plurality of bases are evenly installed on the transport mechanism, and brackets are connected to the left and right sides of the bases, a clamping frame is fixed on the upper side of the bracket, and two slide blocks are fixed on the outer end of the clamping frame, and a clamping sheet is arranged between the two slide blocks.

[0006] Preferably, a torsion spring is provided at the junction between the bracket and the base, and the torsion direction is upward.

[0007] Preferably, limiting bars are fixed to the upper sides of the left and right ends of the base, and the limiting bars are used to limit the flipping angle of the bracket.

[0008] Preferably, a sliding block that slides up and down is provided on the inner side of the slide block, and the corresponding clamping piece on the outer side is transferred to the two sliding blocks, and the height of the clamping piece on the outer side of the slide block is adjusted up and down by the sliding block.

[0009] Preferably, a torsion spring is provided at the junction between the clamping piece and the sliding block, and frosted surfaces corresponding to each other are provided on the outer side of the clamping piece and the surface of the sliding groove block.

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

[0011] The utility model adds a plurality of base structures on the lower transport mechanism matched with the heat sealing mechanism. When the loaded packaging bag is placed on the base, the bracket structures on both sides are flattened due to its own weight. The brackets cooperate with the limiting strips on both sides to assist the packaging bag to remain upright. The clamping frame structure connected to the upper side of the flattened bracket and the clamping sheets on both sides thereof can achieve the purpose of completely flattening the bag opening, thereby facilitating the cooperation with the upper heat sealing mechanism to heat seal the bag opening, effectively solving the problems of unsightly heat sealing of the bag opening and poor sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a plastic film heat sealing device proposed by the utility model;

[0013] Figure 2 This is a side structural schematic diagram of a plastic film heat sealing device proposed by the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the connection structure of a base in a plastic film heat-sealing device.

[0015] In the figure: 1. transport mechanism; 2. heat sealing mechanism; 3. base; 4. clamping frame; 5. clamping plate; 6. limiting bar; 7. bracket; 8. slide block; 9. slide block. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Reference Figure 1-3 A plastic film heat-sealing device comprises a transport mechanism 1 and a heat-sealing mechanism 2. The heat-sealing mechanism 2 is mounted on the transport mechanism 1. A plurality of bases 3 are evenly mounted on the transport mechanism 1. The left and right sides of the bases 3 are connected with brackets 7. Torsion springs are arranged at the connection between the brackets 7 and the bases 3, and the torsion direction is upward. The loaded packaging bag is placed on the brackets 7 on both sides. The brackets 7 rotate downward under gravity. When the loaded packaging bag is separated from the base 3, the brackets 7 on both sides rotate under the torsion springs.

[0018] Furthermore, the upper sides of the left and right ends of the base 3 are fixed with limiting blocks 6, which are used to limit the flipping angle of the bracket 7. When the bracket 7 is pressed and turned, the limiting blocks 6 on both sides cooperate with the left and right limiting brackets 7 to form a frame structure for protecting the intermediate loading packaging bag;

[0019] Furthermore, a clamping frame 4 is fixed on the upper side of the bracket 7, two slide blocks 8 are fixed on the outer end of the clamping frame 4, and a clamping piece 5 is arranged between the two slide blocks 8. The left and right clamping pieces 5 cooperate to press the bag opening of the middle loading packaging bag so that the bag opening is sealed and fitted. A slider 9 that slides up and down is arranged on the inner side of the slide block 8, and the outer corresponding clamping piece 5 is transferred to the two sliders 9. The height of the clamping piece 5 on the outer side of the slide block 8 is adjusted up and down by the slider 9, so as to seal the packaging bags with different bag opening heights.

[0020] Furthermore, a torsion spring is provided at the junction of the clamping plate 5 and the slider 9, and frosted surfaces corresponding to each other are provided on the outer side of the clamping plate 5 and the surface of the slide block 8. When the position of the clamping plate 5 is adjusted, the clamping plate 5 is tightly attached to the surface of the slide block 8 under the action of the torsion spring force, and the corresponding frosted surfaces can increase the mutual friction between each other, thereby stabilizing the position height of the clamping plate 5 between the slide blocks 8 on both sides that are adjusted in real time.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic film heat-sealing device, comprising a transport mechanism (1) and a heat-sealing mechanism (2), It is characterized in that The heat sealing mechanism (2) is installed on the transport mechanism (1), and a plurality of bases (3) are evenly installed on the transport mechanism (1). The bases (3) are connected to brackets (7) on both sides. A clamping frame (4) is fixed on the upper side of the bracket (7). Two slide blocks (8) are fixed on the outer ends of the clamping frame (4), and a clamping sheet (5) is arranged between the two slide blocks (8).

2. The plastic film heat sealing device according to claim 1, It is characterized in that A torsion spring is provided at the junction between the bracket (7) and the base (3), and the torsion direction is upward.

3. The plastic film heat sealing device according to claim 1, It is characterized in that Limiting blocks (6) are fixed to the upper sides of the left and right ends of the base (3), and the limiting blocks (6) are used to limit the turning angle of the bracket (7).

4. The plastic film heat sealing device according to claim 1, It is characterized in that A sliding block (9) is provided on the inner side of the slide block (8) for sliding up and down, and a corresponding clamping piece (5) on the outer side is connected to the two sliding blocks (9), and the height of the clamping piece (5) on the outer side of the slide block (8) is adjusted up and down by the sliding block (9).

5. The plastic film heat sealing device according to claim 1, It is characterized in that A torsion spring is provided at the junction between the clamping piece (5) and the sliding block (9), and frosted surfaces corresponding to each other are provided on the outer side of the clamping piece (5) and the surface of the sliding groove block (8).

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