Film folding and pressing device for plastic packaging bag processing

Abstract

The utility model relates to a kind of film folding and pressing material device in the processing of plastic packaging bag, including base, folding mechanism and guide mechanism;The side of base is equipped with support, and the top of support is horizontally rotationally equipped with first guide roller;The lower part of support is fixed with support plate;Folding mechanism includes isosceles triangle frame, first screw rod, first nut and a pair of compression roller;The bottom of isosceles triangle frame is horizontally hinged on support, and it is located below first guide roller;One end of first screw rod is hinged on the lower part back of isosceles triangle frame;Vertical first lumbar-shaped through-hole is equipped on support plate, and the other end of first screw rod passes through lumbar-shaped through-hole;First nut is sleeved on the part of first screw rod that protrudes first lumbar-shaped through-hole;A pair of compression roller is horizontally rotationally set on base.The utility model can quickly adjust the position of film after folding on conveying mechanism, and it is convenient for subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of film composite auxiliary equipment technology, and in particular to a film folding and pressing device in the processing of plastic packaging bags. Background Technology

[0002] Plastic packaging bags are packaging containers made primarily of plastic, used for containing, protecting, and transporting various goods, and are widely used in daily life and industrial production. The manufacturing process of plastic packaging bags mainly consists of five core stages: raw material preparation, film forming, printing, bag making, and quality inspection. After printing, the film for plastic packaging bags needs to be wound up. A pressure roller is usually installed at the front end of the winding device to effectively prevent the film wound on the winding roller from becoming loose.

[0003] Currently, the triangular frame on the existing film folding and pressing device is fixed in position on the frame. Therefore, when it is necessary to adjust the position of the folded film to facilitate subsequent operations such as punching, the adjustment is quite troublesome.

[0004] Therefore, it is desirable to provide a film folding and pressing device for the processing of plastic packaging bags, in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a film folding and pressing device for processing plastic packaging bags, which can quickly adjust the position of the folded film on the conveying mechanism to facilitate subsequent processing.

[0006] To achieve the above-mentioned utility model objectives, a film folding and pressing device is provided for the processing of plastic packaging bags, including a base, a folding mechanism and a guiding mechanism;

[0007] A bracket is provided on one side of the base, and a first guide roller is provided on the top of the bracket in a horizontal rotation.

[0008] A support plate is fixed to the lower part of the bracket, and the support plate is vertically arranged.

[0009] The folding mechanism includes an isosceles triangular frame, a first screw, a first nut, and a pair of pressure rollers;

[0010] The bottom edge of the isosceles triangular frame is horizontally hinged to the bracket and located below the first guide roller;

[0011] One end of the first screw is hinged to the lower back of the isosceles triangular frame;

[0012] The support plate is vertically provided with a first waist-shaped through hole, and the other end of the first screw passes through the waist-shaped through hole;

[0013] The first nut is fitted onto the part of the first screw that extends out of the first oblong through hole;

[0014] The pair of pressure rollers are horizontally rotatably mounted on the base and are symmetrically arranged, with the gap between the pair of pressure rollers always located directly below the vertex of the isosceles triangular frame;

[0015] The guiding mechanism is mounted on the base and is used to guide and convey the folded film.

[0016] Preferably, a second nut is also fitted onto the first screw on the front side of the support plate.

[0017] Preferably, vertical plates are fixed on both the front and rear sides of the base, and a second waist-shaped through hole is horizontally provided on the upper part of each vertical plate;

[0018] Both ends of the pair of pressure rollers are provided with a first connecting part, and the first connecting parts at both ends of the pair of pressure rollers pass through the second waist-shaped through hole they face.

[0019] A third nut is fitted onto the portion of the first connecting part that extends out of the second oblong through hole;

[0020] Bolts are threaded onto the upper parts of both the front and rear sides of the vertical plate. The ends of the bolts extend into the second oblong through hole and are rotatably connected to the first connecting part they face. A fourth nut is fitted onto the bolt.

[0021] Furthermore, a spring is connected to the outer end of the first connecting part, with one end of the spring connected to the outer end of the first connecting part and the other end connected to the vertical plate.

[0022] Specifically, the guiding mechanism includes a second guide roller and a third guide roller;

[0023] The second guide roller is horizontally rotatably mounted on the base and is located in front of and below a pair of pressure rollers;

[0024] The third guide roller is horizontally rotatably mounted on the base and is located in front of and above the second guide roller.

[0025] Furthermore, the base is provided with fixing plates on both sides, and the fixing plates are provided with a third oblong through hole vertically;

[0026] Both ends of the third guide roller are provided with a second connecting part, and the second connecting part is vertically slidably disposed in the corresponding third waist-shaped through hole;

[0027] The top of the fixing plate is provided with a vertically mounted second screw. The second screw passes through the top of the fixing plate and extends into the third oblong through hole. The lower end of the second screw is rotatably connected to the corresponding second connecting part.

[0028] The upper part of the second screw is fitted with a fifth nut.

[0029] The advantages of this plastic packaging bag processing film folding and pressing device compared with the prior art are as follows:

[0030] By rotating the base of an isosceles triangular frame onto a support and rotating a first screw on the lower back of the isosceles triangular frame, when it is necessary to adjust the position of the folded film on the conveying mechanism, the first nut is loosened, and the isosceles triangular frame is rotated to a specified angle. Then, the first nut is tightened, and the position of the vertex of the isosceles triangular frame is adjusted, thus achieving the adjustment of the position of the folded film on the conveying device. The adjustment method is simple and quick. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a film folding and pressing device used in the processing of plastic packaging bags according to this embodiment. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of a film folding and pressing device used in the processing of plastic packaging bags according to this embodiment. Figure 2 ;

[0033] Figure 3 for Figure 2 An enlarged view of the vertical panel in the image;

[0034] Figure 4 for Figure 2 Enlarged view of the central fixing plate. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 As shown in the figure, a film folding and pressing device for processing plastic packaging bags in this embodiment includes a base 1, a folding mechanism and a guiding mechanism.

[0037] A bracket 2 is provided on one side of the base 1, and a first guide roller 3 is provided on the top of the bracket 2 in a horizontal rotational manner; a support plate 4 is fixed at the lower part of the bracket 2, and the support plate 4 is vertically arranged.

[0038] like Figure 2As shown, the folding mechanism includes an isosceles triangular frame 5, a first screw 6, a first nut 7, and a pair of pressure rollers 8. The base of the isosceles triangular frame 5 is horizontally hinged to the bracket 2 and located below the first guide roller 3. One end of the first screw 6 is hinged to the lower back of the isosceles triangular frame 5. A first waist-shaped through hole 9 is vertically provided on the support plate 4, and the other end of the first screw 6 passes through the waist-shaped through hole 9. The first nut 7 is sleeved on the part of the first screw 6 that extends out of the first waist-shaped through hole 9. The pair of pressure rollers 8 are horizontally rotatably arranged on the base 1 and are symmetrically arranged. The gap between the pair of pressure rollers 8 is always located directly below the vertex of the isosceles triangular frame 5.

[0039] A guiding mechanism is mounted on the base 1 to guide and convey the folded film.

[0040] When it is necessary to adjust the position of the folded film on the conveying mechanism, loosen the first nut 7 to rotate the isosceles triangular frame 5 to the specified angle, and then tighten the first nut 5 to adjust the position of the vertex of the isosceles triangular frame 5, thereby adjusting the position of the folded film on the conveying device. The film unwound by the unwinding device is laid flat on the front of the isosceles triangular frame 5 under the guidance of the first guide roller 3, and then folded down along both sides. Finally, it is conveyed by the external conveying device between a pair of pressure rollers 8 under the guidance of the guiding mechanism to the subsequent workstation for processing.

[0041] In this embodiment, as Figure 2 As shown, a second nut 10 is also sleeved on the first screw 6 on the front of the support plate 4. By tightening the first nut 7 and the second nut 10, the isosceles triangular frame 5 with the adjusted angle can be more firmly fixed, making it easier to fold.

[0042] In this embodiment, as Figure 3As shown, vertical plates 11 are fixed on both the front and rear sides of the base 1. Each vertical plate 11 has a horizontally arranged second oblong through hole 12 on its upper part. Each end of a pair of pressure rollers 8 has a rotatable first connecting part 13, which passes through the facing second oblong through hole 12. A third nut 14 is fitted onto the portion of the first connecting part 13 extending out of the second oblong through hole 12. Bolts 15 are threaded onto the upper parts of both the front and rear sides of the vertical plates 11. The ends of the bolts 15 extend into the second oblong through hole 12 and are rotatably connected to the facing first connecting part 13. A fourth nut 16 is fitted onto the bolts. With this configuration, the bolts 15 can be rotated to adjust the position of the first connecting part 13 on the second oblong through holes 12 of the two vertical plates 11, thereby adjusting the distance between the pair of pressure rollers 8. Then, tightening the third nut 14 and the fourth nut 16 positions the first connecting part 13 on the second oblong through hole 13 at both ends of the pair of pressure rollers 8.

[0043] Furthermore, a spring 17 is connected to the outer end of the first connecting part 13. One end of the spring 17 is connected to the outer end of the first connecting part 13, and the other end is connected to the vertical plate 11. This arrangement provides a certain degree of shock resistance and further stabilizes the position of the first connecting part 13 on the second waist-shaped through hole 12.

[0044] In this embodiment, as Figure 2 As shown, the guiding mechanism includes a second guide roller 18 and a third guide roller 19; the second guide roller 18 is horizontally rotatably mounted on the base 1 and is located in front of and below a pair of pressure rollers 8; the third guide roller 19 is horizontally rotatably mounted on the base 1 and is located in front of and above the second guide roller 18; after being folded, the film passes through a pair of pressure rollers 8, first through the lower part of the second guide roller 18 and then through the upper part of the third guide roller 19 for conveying.

[0045] Furthermore, in this embodiment, as Figure 4 As shown, the base 1 has fixing plates 20 on both sides, and the fixing plates 20 have vertically arranged third oblong through holes 21; the third guide roller 19 has rotatably arranged second connecting parts 22 at both ends, and the second connecting parts 22 are vertically slidably arranged in the corresponding third oblong through holes 21; the top of the fixing plate 20 has a vertically arranged second screw 23, which passes through the top of the fixing plate 20 and extends into the third oblong through hole 21, and the lower end of the second screw 23 is rotatably connected to the corresponding second connecting part 22; the upper part of the second screw 23 is sleeved with a fifth nut 24; with this arrangement, the height of the third guide roller 19 can be adjusted by rotating the second screw 23, and then the height of the third guide roller 19 can be positioned by tightening the fifth nut 24, which makes it more convenient to guide and convey the folded film.

[0046] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A film folding and pressing device for processing plastic packaging bags, characterized in that, Includes a base, a folding mechanism, and a guiding mechanism; A bracket is provided on one side of the base, and a first guide roller is provided on the top of the bracket in a horizontal rotation. A support plate is fixed to the lower part of the bracket, and the support plate is vertically arranged. The folding mechanism includes an isosceles triangular frame, a first screw, a first nut, and a pair of pressure rollers; The bottom edge of the isosceles triangular frame is horizontally hinged to the bracket and located below the first guide roller; One end of the first screw is hinged to the lower back of the isosceles triangular frame; The support plate is vertically provided with a first oblong through hole, and the other end of the first screw passes through the oblong through hole; The first nut is fitted onto the part of the first screw that extends out of the first oblong through hole; The pair of pressure rollers are horizontally rotatably mounted on the base and are symmetrically arranged, with the gap between the pair of pressure rollers always located directly below the vertex of the isosceles triangular frame; The guiding mechanism is mounted on the base and is used to guide and convey the folded film.

2. The film folding and pressing device for processing plastic packaging bags as described in claim 1, characterized in that, A second nut is also fitted onto the first screw on the front side of the support plate.

3. The film folding and pressing device for processing plastic packaging bags as described in claim 1, characterized in that, Vertical plates are fixed on both the front and rear sides of the base, and a second waist-shaped through hole is provided horizontally on the upper part of each vertical plate. Both ends of the pair of pressure rollers are provided with a first connecting part, and the first connecting parts at both ends of the pair of pressure rollers pass through the second waist-shaped through hole they face. A third nut is fitted onto the portion of the first connecting part that extends out of the second oblong through hole; Bolts are threaded onto the upper parts of both the front and rear sides of the vertical plate. The ends of the bolts extend into the second oblong through hole and are rotatably connected to the first connecting part they face. A fourth nut is fitted onto the bolt.

4. The film folding and pressing device for processing plastic packaging bags as described in claim 3, characterized in that, A spring is connected to the outer end of the first connecting part, with one end of the spring connected to the outer end of the first connecting part and the other end connected to the vertical plate.

5. A film folding and pressing device for processing plastic packaging bags as described in any one of claims 1 to 4, characterized in that, The guiding mechanism includes a second guide roller and a third guide roller; The second guide roller is horizontally rotatably mounted on the base and is located in front of and below a pair of pressure rollers; The third guide roller is horizontally rotatably mounted on the base and is located in front of and above the second guide roller.

6. The film folding and pressing device for processing plastic packaging bags as described in claim 5, characterized in that, The base has fixing plates on both sides, and the fixing plates have a third waist-shaped through hole vertically. Both ends of the third guide roller are provided with a second connecting part, and the second connecting part is vertically slidably disposed in the corresponding third waist-shaped through hole; The top of the fixing plate is provided with a vertically mounted second screw. The second screw passes through the top of the fixing plate and extends into the third oblong through hole. The lower end of the second screw is rotatably connected to the corresponding second connecting part. The upper part of the second screw is fitted with a fifth nut.

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