Middle-sealed organ bag folding structure

Abstract

The utility model discloses a middle-sealed organ bag folding structure which comprises a bottom plate, a bag folding mechanism used for folding a packaging film roll is arranged at the top of the bottom plate, and a flattening assembly used for improving the flatness of the packaging film roll is arranged in the bag folding mechanism. The bag folding mechanism comprises a vertical rod, a supporting block, a sliding rod, a sliding sleeve, a spring, a connecting plate, a special-shaped block, a vertical plate, a supporting column, a connecting rod and a film pressing wheel, the vertical rod is bolted to the top of the bottom plate, the supporting block is arranged above the bottom plate, the sliding rod is bolted to the bottom of the supporting block, the sliding sleeve is slidably connected to the outer portion of the sliding rod, and the spring is bolted to the bottom of the supporting block; the connecting plate is bolted to the bottom of the spring, the special-shaped block is bolted to the bottom of the sliding sleeve, the vertical plate is bolted to the interior of the special-shaped block, and the supporting column is arranged on the top of the bottom plate. According to the bag folding structure of the middle-sealed organ bag, the function of folding a packaging film roll is achieved, and the function of flattening a packaging film entering the top of the bottom plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing center-sealed accordion bags, in particular to a folding bag structure of a center-sealed accordion bag. Background Art

[0002] The center-seal accordion bag adopts a double-layer film structure and is made through a heat-sealing process. It has the characteristics of center sealing and accordion-like folds. Accordion bags are widely used in food packaging due to their many advantages such as small footprint. They can be used for both powdered and granular foods. A bag folding device is required in the production of center-seal accordion bags.

[0003] After searching, in the prior art, the Chinese patent with patent announcement number CN214420793U discloses "an accordion bag packaging device, which effectively solves the problem that the packaging bag with a soft inner bag is not easy to push the corner to form an accordion bag style; the technical solution is to include a feeding cylinder, the lower end surface of the feeding cylinder is hinged with a clamping plate, the left and right sides of the feeding cylinder are provided with rectangular rods, the rectangular rods have vertical shafts, and the vertical shafts can move forward and backward on the corresponding rectangular rods; the outer sides of the two clamping plates are provided with cross bars, and the two ends of the cross bars are rotatably connected to the corresponding vertical rods. At the upper end of the shaft, the cross bar is hinged with a first connecting rod, and the inner end of the first connecting rod is hinged together to form a V shape, with the tip of the V facing the inner side of the two splints; below the two splints is a cross plate, and the left and right ends of the cross plate are rotatably connected to the second connecting rod, and the upper end of the second connecting rod is hinged to the lower end of the corresponding vertical shaft; this utility model solves the problem that a packaging bag with a soft inner bag is difficult to push the corner to form an accordion bag style, so that the inner bag and the outer bag of the packaging bag can form an accordion bag style at the same time, and the operation is simple, but it still has the following defects:

[0004] (1) When the device is in use, the bottom of the packaging bag is directly placed under the two clamping plates and then the two first connecting rods are moved in opposite directions to cause the middle part of the packaging bag to be concave, and then the clamping plates are moved to achieve the purpose of folding the bag. However, the packaging bag may not be fully opened, which may cause the hinge shaft to be unable to contact the packaging bag, thereby reducing the bag folding efficiency;

[0005] (2) The device cannot level the produced packaging bags during use, which may cause the packaging bags to deform, thereby reducing the production efficiency.

[0006] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a center-sealed accordion bag folding structure, which aims to fold the packaging film roll and at the same time achieve the effect of flattening the packaging film entering the top of the bottom plate.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] The top of the bag is mounted on the pouch, and the bottom of the pouch is pivotally connected to the top of the pouch and the bottom of the pouch is pivotally connected to the elongated plate. The pouch is arranged on a vertical cam portion, and the elongated plate is fixed to the bottom of the bag to form a circular aperture. The elongated plate is connected to the top of the bag and the bottom of the pouch is pivotally connected to the elongated plate.

[0010] Furthermore, the leveling assembly includes an extension plate, a first roller, a second roller, a transverse plate, a support plate and a leveling roller, the extension plate is welded to the side wall of the special-shaped block, the first roller and the second roller are both rotatably connected to the side wall of the extension plate, the transverse plate is bolted to the side wall of the base plate, the support plate is bolted to the top of the transverse plate, and the leveling roller is rotatably connected to the side wall of the support plate.

[0011] Furthermore, a screw rod is rotatably connected inside the vertical rod, and one end of the screw rod passes through the support block and is threadedly connected to the support block.

[0012] Furthermore, two guide rods are bolted to the side walls of the vertical rod, and one end of the two guide rods passes through the support block and is slidably connected to the support block.

[0013] Furthermore, a pad is bolted to the top of the bottom plate to prevent the packaging film roll from being worn, and the pad is located between two adjacent support columns.

[0014] Furthermore, the bottom of the base plate is bolted with support legs, and the number of the support legs is four and evenly distributed.

[0015] Furthermore, L-shaped pieces are provided on the side walls of the vertical plate, and the number of the L-shaped pieces is two and they are symmetrically arranged.

[0016] Furthermore, one end of the screw rod is bolted to a circular plate, and a handle for facilitating the rotation of the screw rod is rotatably connected to the side wall of the circular plate.

[0017] Beneficial effects:

[0018] The center-sealed accordion bag folding structure provided by the utility model realizes the function of folding the packaging film roll through the provided folding mechanism, unfolds the packaging film roll in the folding mechanism, and then places the packaging film between the vertical plate and the film pressing wheel, and then folds the packaging film into the bag shape, so that the bag finally forms a vertical edge, and then guides the packaging film through external equipment to provide the heat sealing device behind for edge clamping and hot melting, and does not adopt the process of folding the bag by squeezing the finished packaging bag. The provided flattening component realizes the function of flattening the packaging film entering the top of the bottom plate, so as to prevent the packaging film from being deformed when moving, thereby affecting the subsequent operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the center-sealed accordion bag folding structure provided by the utility model;

[0020] Figure 2 This is a left view of the folding structure of the center-sealed accordion bag provided by the utility model;

[0021] Figure 3 The utility model provides a folding bag structure for a center-sealed accordion bag Figure 2 A three-dimensional cross-section at AA in the middle;

[0022] Figure 4 This is a structural diagram of the bag folding mechanism and flattening assembly of the center-sealed accordion bag structure provided by the present invention;

[0023] Figure 5 The utility model provides a folding bag structure for a center-sealed accordion bag. Figure 3 Enlarged view of point A in the middle.

[0024] Explanation of the main component symbols: 1. Bottom plate; 2. Bag folding mechanism; 3. Leveling assembly; 4. Screw; 5. Guide rod; 6. Pad; 7. Support leg; 8. L-shaped piece; 11. Round plate; 12. Handle; 201. Vertical rod; 202. Support block; 203. Slide rod; 204. Slide sleeve; 205. Spring; 206. Connecting plate; 207. Special-shaped block; 208. Vertical plate; 209. Support column; 210. Connecting rod; 211. Film pressing wheel; 301. Extension plate; 302. First roller; 303. Second roller; 304. Horizontal plate; 305. Support plate; 306. Leveling roller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 The utility model provides a folding structure of a center-sealed accordion bag, comprising a bottom plate 1, a folding mechanism 2 for folding a packaging film roll is arranged on the top of the bottom plate 1, and a flattening component 3 for improving the flatness of the packaging film roll is arranged inside the folding mechanism 2; the folding mechanism 2 comprises a vertical rod 201, a support block 202, a sliding rod 203, a sliding sleeve 204, a spring 205, a connecting plate 206, a special-shaped block 207, a vertical plate 208, a support column 209, a connecting rod 210 and a film pressing wheel 211, the vertical rod 201 is bolted to the top of the bottom plate 1, the support block 202 is arranged on the bottom plate 1 Above the base plate 1, the slide rod 203 is bolted to the bottom of the support block 202, the sleeve 204 is slidably connected to the outside of the slide rod 203, the spring 205 is bolted to the bottom of the support block 202, the connecting plate 206 is bolted to the bottom of the spring 205, the special-shaped block 207 is bolted to the bottom of the sleeve 204, the vertical plate 208 is bolted to the inside of the special-shaped block 207, the support column 209 is arranged at the top of the base plate 1, the connecting rod 210 is arranged inside the support column 209, the film pressing wheel 211 is arranged inside the support column 209, and the connecting plate 206 is welded to the top of the sleeve 204.

[0027] During use, the unwinding mechanism unwinds the packaging film roll, and then unfolds it so that the packaging film is transported forward from between the vertical plate 209 and the bottom plate 1, and is transported at a uniform speed through an external pulling device. Then, both sides of the packaging film are folded toward the vertical plate 209, and then, under the pressure of the film pressing wheel 211, a folded part of the packaging film is pressed on the table of the bottom plate 1, and then the other folded part of the packaging film is pressed against the side of the vertical plate 209, so that the packaging film is folded into a bag shape, so that the bag forms a vertical edge, which is convenient for the subsequent heat sealing machine to clamp the edge and hot-melt, thereby playing the role of folding the bag.

[0028] In a preferred embodiment, see Figure 3 and Figure 5 The leveling assembly 3 includes an extension plate 301, a first roller 302, a second roller 303, a transverse plate 304, a support plate 305, and a leveling roller 306. The extension plate 301 is welded to the side wall of the special-shaped block 207. The first roller 302 and the second roller 303 are both rotatably connected to the side wall of the extension plate 301. The transverse plate 304 is bolted to the side wall of the base plate 1. The support plate 305 is bolted to the top of the transverse plate 304. The leveling roller 306 is rotatably connected to the side wall of the support plate 305. During use, one end of the packaging film is placed between the leveling roller 306 and the first and second rollers 302 and 303. The leveling roller 306 can level the packaging film and prevent deformation during subsequent operations.

[0029] In a preferred embodiment, see Figure 1The interior of the vertical rod 201 is rotatably connected to a screw rod 4, one end of which passes through the support block 202 and is threadedly connected to the support block 202. The fixed position of the vertical plate 208 to the packaging film can be adjusted to prevent errors from causing difficulty in adjustment.

[0030] In a preferred embodiment, see Figure 1 Two guide rods 5 are bolted to the side wall of the vertical rod 201, and one end of the two guide rods 5 passes through the support block 202 and is slidably connected to the support block 202. When the screw rod 4 rotates, it can prevent the support block 202 from rotating with it, which affects the product processing efficiency.

[0031] In a preferred embodiment, see Figure 1 The top of the bottom plate 1 is bolted with a pad 6 to prevent the packaging film roll from being worn, and the pad 6 is located between two adjacent support columns 209. It can prevent the packaging film from being rubbed against the top of the bottom plate 1 when the packaging film is pulled, resulting in holes in the packaging film.

[0032] In a preferred embodiment, see Figure 1 The bottom of the base plate 1 is bolted with support legs 7, and the number of support legs 7 is four and evenly distributed. The base plate 1 can be placed at a height that is convenient for the user to operate, thereby improving convenience.

[0033] In a preferred embodiment, see Figure 3 The side walls of the vertical plate are provided with L-shaped pieces 8, and the number of the L-shaped pieces 8 is two and symmetrically arranged. A gap can be formed for the vertical edge to pass through, so that the vertical edge can pass through, ensuring the success of the hot melt clamping.

[0034] In this embodiment, refer to Figure 1 One end of the screw rod 4 is bolted with a circular plate 11, and the side wall of the circular plate 11 is rotatably connected with a handle 12 for rotating the screw rod 4. It is more convenient to rotate the screw rod 4.

[0035] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the present invention.

Claims

1. A center-sealed accordion bag folding structure, characterized in that: The folding mechanism comprises a bottom plate, a bag folding mechanism for folding the packaging film roll is provided on the top of the bottom plate, and a flattening component for improving the flatness of the packaging film roll is provided inside the bag folding mechanism; the bag folding mechanism comprises a vertical rod, a support block, a sliding rod, a sliding sleeve, a spring, a connecting plate, a special-shaped block, a vertical plate, a support column, a connecting rod and a film pressing wheel, the vertical rod is bolted to the top of the bottom plate, the support block is provided above the bottom plate, the sliding rod is bolted to the bottom of the support block, the sliding sleeve is slidably connected to the outside of the sliding rod, the spring is bolted to the bottom of the support block, the connecting plate is bolted to the bottom of the spring, the special-shaped block is bolted to the bottom of the sliding sleeve, the vertical plate is bolted to the special-shaped The interior of the block and extends forward, a gap is formed between the vertical plate and the bottom plate for the packaging film to pass through, the support column is arranged on the top of the bottom plate, the connecting rod is arranged inside the support column, the film pressing wheel is arranged at one end of the connecting rod, and the connecting plate is welded to the top end of the sliding sleeve; the leveling assembly includes an extension plate, a first roller, a second roller, a cross plate, a support plate and a leveling roller, the extension plate is welded to the side wall of the special-shaped block, the first roller and the second roller are both rotatably connected to the side wall of the extension plate, the cross plate is bolted to the side wall of the bottom plate, the support plate is bolted to the top of the cross plate, and the leveling roller is rotatably connected to the side wall of the support plate;.

2. The center-sealed accordion bag folding structure according to claim 1 is characterized in that: The interior of the vertical rod is rotatably connected to a screw rod, and one end of the screw rod passes through the support block and is threadedly connected to the support block.

3. The center-sealed accordion bag folding structure according to claim 1 is characterized in that: Two guide rods are bolted to the side walls of the vertical rod, and one end of the two guide rods passes through the support block and is slidably connected to the support block.

4. The center-sealed accordion bag folding structure according to claim 1, characterized in that: A pad is bolted to the top of the bottom plate to prevent the packaging film roll from being worn, and the pad is located between two adjacent support columns.

5. The center-sealed accordion bag folding structure according to claim 1 is characterized in that: The bottom of the base plate is bolted with supporting legs, and the number of the supporting legs is four and evenly distributed.

6. The center-sealed accordion bag folding structure according to claim 1, characterized in that: The side walls of the vertical plate are provided with L-shaped pieces, and the number of the L-shaped pieces is two and they are symmetrically arranged.

7. The center-sealed accordion bag folding structure according to claim 2, characterized in that: One end of the screw rod is bolted with a circular plate, and a handle for facilitating the rotation of the screw rod is rotatably connected to the side wall of the circular plate.

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