Paper feeding mechanism for paper bags with opposite sides opened

Abstract

A paper feeding mechanism of a paper bag with opposite edges opened comprises a paper feeding assembly and a paper conveying assembly, a U-shaped groove is formed in the front end of a paper feeding frame of the paper feeding assembly and rotationally connected with a paper rolling rod, the two ends of a rotating roller of the paper rolling rod are movably sleeved with movable connectors, the movable connectors are fixedly connected through first bolts, and bearings are arranged on the movable connectors; the bearing is sleeved and fixed in the U-shaped groove, a first paper feeding gear is arranged at the end of one movable connector, a second paper feeding gear is arranged on the paper feeding frame, and the second paper feeding gear drives the first paper feeding gear in a meshed mode through a paper feeding motor which is coaxially connected with the second paper feeding gear, so that the rotating roller rotates to feed paper. The packaging paper is led out through the packaging paper roll and then led out to the paper feeding assembly through a first paper guide rod of the paper feeding frame, and the paper feeding assembly enables the packaging paper to be attached up and down together and led out to the paper bag packaging and pressing device at the same time. According to the utility model, the loading and replacement of the packaging paper roll of the edge-opened paper bag are particularly simple and convenient, and the loading efficiency of the packaging paper roll is greatly improved.

Description

Technical Field

[0001] The utility model relates to a production device for packaging bags, in particular to a paper feeding mechanism for a double-side open paper bag. Background Art

[0002] As the name implies, a double-side open paper bag refers to a packaging paper bag with openings on two opposite sides and the other two sides glued together. Usually, the double-side open paper bag is sleeved outside the product through the openings on the opposite sides and is used for the inner packaging of the product to block dust, moisture, etc.

[0003] The base material of the double-side open paper bag is a roll of packaging paper with glue strips coated at intervals. For the production process of the roll of packaging paper, reference can be made to the patent "An Automatic Glue Coating Device for Paper Packaging Bags" with the publication number CN217473951U of the applicant. When producing a double-side open paper bag, two rolls of packaging paper are relatively bonded together through a paper feeding mechanism, and the glued parts are hot-pressed and cut to form a double-side open paper bag. However, there are many length specifications for the roll of packaging paper. When producing double-side open paper bags of different specifications, the paper feeding for the production of double-side open paper bags requires the disassembly of the loading rack, which is inconvenient for loading. Each time the specification of the double-side open paper bag is changed, a large amount of time is required to debug the loading installation, greatly reducing the production efficiency of the double-side open paper bag. Summary of the Invention

[0004] The purpose of the utility model is to provide a paper feeding mechanism for a double-side open paper bag, aiming to solve the problem of paper feeding of the roll of packaging paper during the process of changing the specification of the roll of packaging paper for the production of double-side open paper bags.

[0005] In view of this, the technical solution provided by the utility model is: a paper loading mechanism for an opposite-side open paper bag, comprising two groups of paper loading components and one group of paper feeding components, the two groups of paper loading components are relatively arranged on both sides of the front end support feet of the paper feeding components, each group of the paper loading components comprises a paper loading rack, a plurality of rotatable first paper guide rods are installed between the two side walls of the upper paper rack, a U-shaped groove is opened on the front end side wall of the upper paper rack, the U-shaped groove is rotatably connected to a paper roll rod, the paper roll rod comprises a rotating roller and a movable joint, plug plates are arranged at both ends of the rotating roller, the packaging paper roll is fixedly sleeved between the rotating rollers and positioned by the plug plates, the two ends of the rotating roller are movably sleeved with movable joints, and the movable joints enable the two ends of the rotating roller to extend over the U-shaped The movable joint is connected and fixed by a first bolt, a bearing is arranged on the movable joint, and the bearing is sleeved and fixed in the U-shaped groove, a first paper feeding gear is arranged at the end of one of the movable joints, a second paper feeding gear corresponding to the first paper feeding gear is arranged on the upper paper rack, the first paper feeding gear is meshed with the second paper feeding gear, the second paper feeding gear is coaxially connected with a paper feeding motor, and the second paper feeding gear is meshed with the first paper feeding gear by the paper feeding motor to drive the first paper feeding gear, so that the rotating roller rotates to feed paper, and the packaging paper is led out through the packaging paper roll and then led out to the paper feeding assembly by the first paper guide rod, and the paper feeding assembly sticks the packaging paper led out by the two upper paper assemblies together up and down and leads them out to the paper bag packaging pressing device at the same time.

[0006] Furthermore, the paper feeding assembly includes a paper feeding rack, multiple pairs of second paper guide rods arranged in the vertical direction, multiple third paper guide rods arranged side by side in the horizontal direction, and two fourth paper guide rods. The packaging paper led out by the two groups of paper loading assemblies is respectively led out through multiple pairs of the second paper guide rods and adhered to the third paper guide rods up and down, and is led out by the fourth paper guide rods.

[0007] Furthermore, the paper feeding rack is provided with a plurality of pairs of protruding connecting ends between the third paper guide rods, a first adjustment groove is provided inside the connecting end, a pair of paper pressing rods arranged up and down are installed between the first adjustment grooves, and an adjustable gap is provided between the pair of paper pressing rods for the packaging paper to pass through.

[0008] Furthermore, the connecting end is arranged obliquely, so that the pair of paper pressing rods are arranged staggered up and down.

[0009] Furthermore, a second adjustment groove is provided on the side wall of the connecting end, the second adjustment groove is connected with the first adjustment groove, and a second bolt abutting against the paper pressing rod is provided in the second adjustment groove. By means of the second bolt, a pair of paper pressing rods can be adjusted and fixed between the first adjustment grooves.

[0010] Furthermore, an inner recessed groove parallel to the end surface of the U-shaped groove is provided in the U-shaped groove, and the bearing is inserted and fixed in the inner recessed groove.

[0011] For the present utility model, the wrapping paper roll selects a rotating roller with a corresponding specified length according to its specification, and the wrapping paper roll is fixedly sleeved on the rotating roller. The wrapping paper roll is fixed on both sides by the inserting plate. At both ends of the rotating roller, an adjusting sleeve is sleeved with a movable joint, so that the bearing on the movable joint can be inserted and fixed in the inner sunk groove of the paper loading rack. The wrapping paper is led out from the wrapping paper roll, wound around the first paper guiding rod and guided to the second paper guiding rod. Two groups of wrapping paper rolls are simultaneously guided from the lower direction to the upper part of the paper feeding rack by the second paper guiding rod and are attached together. The attached wrapping paper is horizontally attached and guided by the third paper guiding rod. During the process of horizontally attaching and guiding the wrapping paper for paper feeding, an adjustable paper pressing rod is also provided. When the wrapping paper passes through the gap between the adjustable paper pressing rods, the degree of attachment and tightness between the wrapping papers are further ensured. Finally, the wrapping paper is guided to the paper bag packaging and pressing device by the fourth paper guiding rod, and the wrapping paper is hot-pressed and cut on the subsequent paper bag packaging and pressing device to obtain a paper bag with opposite-side openings.

[0012] For the present utility model, through the movable adjustment design of the movable joint of the paper roll rod, the feeding and replacement of the wrapping paper roll for the paper bag with opposite-side openings become particularly simple and convenient, greatly improving the feeding efficiency of the wrapping paper roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the paper loading mechanism.

[0014] Figure 2 It is a three-dimensional schematic diagram of the paper loading mechanism connected with the wrapping paper roll.

[0015] Figure 3 It is one of the three-dimensional structural schematic diagrams of the paper loading rack.

[0016] Figure 4 It is the second of the three-dimensional structural schematic diagrams of the paper loading rack.

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the paper roll rod.

[0018] Figure 6 It is an exploded structural schematic diagram of the paper roll rod.

[0019] Figure 7 It is Figure 1 The partial enlarged schematic diagram of A in

[0020] Wherein: 1 - upper paper feeding assembly, 11 - upper paper rack, 111 - U-shaped groove, 112 - inner sunken groove, 12 - second paper feeding gear, 13 - paper feeding motor, 14 - first paper guiding rod, 2 - paper roll rod, 21 - rotating roller, 22 - inserting plate, 23 - movable joint, 24 - first bolt, 25 - bearing, 26 - first paper feeding gear, 3 - wrapping paper roll, 31 - wrapping paper, 4 - paper feeding assembly, 41 - paper feeding rack, 411 - connecting end, 412 - first adjusting groove, 413 - second adjusting groove, 42 - second paper guiding rod, 43 - third paper guiding rod, 44 - fourth paper guiding rod, 45 - paper pressing rod, 46 - second bolt. Detailed implementation mode

[0021] The following briefly describes the implementation mode of the present utility model with reference to the attached drawings.

[0022] A paper loading mechanism for an edge-opening paper bag, referring to 1- Figure 2 , including two groups of upper paper feeding assemblies 1 and one group of paper feeding assemblies 4. The two groups of upper paper feeding assemblies 1 are oppositely arranged on both sides of the front feet of the paper feeding assembly 4. Combining Figure 3 、 Figure 4 , each group of upper paper feeding assemblies 1 includes an upper paper rack 11. A plurality of rotatable first paper guiding rods 14 are installed between the two side walls of the upper paper rack 11. A U-shaped groove 111 is formed on the front side wall of the paper rack 11, and a paper roll rod 2 is rotatably connected to the U-shaped groove 111.

[0023] Referring to Figure 5 、 Figure 6 , the paper roll rod 2 includes a rotating roller 21 and a movable joint 23. Inserting plates 22 are provided at both ends of the rotating roller 21. The wrapping paper roll 3 is fixedly sleeved between the rotating rollers 21 and positioned by the inserting plates 22. Usually, the rotating roller 21 is designed to be replaceable and is set according to the length dimension of the wrapping paper roll 3. Movable joints 23 are movably sleeved at both ends of the rotating roller 21. Since the movable joints 23 can be movably sleeved and matched, the two ends of the rotating roller 21 with different specifications and lengths just extend between the U-shaped grooves 111. The movable joints 23 are connected and fixed by the first bolts 24, and bearings 25 are provided on the movable joints 23. The bearings 25 are sleeved and fixed in the U-shaped grooves 111, thereby realizing the rotational connection between the paper roll rod 2 and the upper paper rack 11. In this embodiment, in order for the U-shaped groove 111 to stably fix the paper roll rod 2, an inner sunken groove 112 parallel to the end face of the U-shaped groove 111 is provided in the U-shaped groove 111. Thus, when the paper roll rod 2 is installed, the bearings 25 are inserted and fixed in the inner sunken groove 112, which not only ensures that the bearings 25 of the paper roll rod 2 are convenient for installation and insertion, but also can be fixed after insertion, ensuring that the paper roll rod 2 can rotate freely during the paper feeding process.

[0024] One end of one of the movable joints 23 is provided with a first paper feeding gear 26, and a second paper feeding gear 12 corresponding to the first paper feeding gear 26 is provided on the paper loading rack 11. The first paper feeding gear 26 meshes with the second paper feeding gear 12. The second paper feeding gear 12 is coaxially connected with a paper feeding motor 13. By means of the paper feeding motor 13, the second paper feeding gear 12 meshes with and drives the first paper feeding gear 23, so that the rotating roller 21 rotates to feed paper. Thus, the rotating roller 21 can cooperate with the paper pulling power device of the subsequent paper bag packaging and pressing device to synchronously release the wrapping paper 31 on the wrapping paper roll 3. After the wrapping paper 31 is led out through the wrapping paper roll 3, it is led out through the first paper guide rod 14 and is on the paper feeding assembly 4. The paper feeding assembly 4 fits the wrapping paper 31 led out by the two paper loading assemblies 1 together up and down and simultaneously leads it out onto the paper bag packaging and pressing device.

[0025] Among them, there are more than two first paper guide rods 14, which are used for winding the wrapping paper 31 to ensure that the wrapping paper 31 has a certain winding force during the leading-out process and will not loosen. The first paper guide rods 14 include two first paper guide rods 14 arranged in parallel below the wrapping paper roll 3 and one first paper guide rod 14 above the two parallel ones. The wrapping paper 31 is led out from below through the two parallel first paper guide rods 14 below and folded upwards.

[0026] The paper feeding assembly 4 includes a paper feeding rack 41, multiple pairs of second paper guide rods 42 arranged vertically, multiple third paper guide rods 43 arranged side by side horizontally, and two fourth paper guide rods 44. The wrapping paper 31 led out by the two paper loading assemblies 1 is respectively led out through multiple pairs of second paper guide rods 42 and is attached to each other up and down on the third paper guide rods 43, and is led out by the fourth paper guide rods 44. Similarly, multiple pairs of second paper guide rods 42 are located between the feet at the front end of the paper feeding rack 41, and different pairs of second paper guide rods 42 are set with different widths, so that the wrapping paper 31 has an undulating tension guiding during the upward leading-out process, ensuring that the wrapping paper 31 has a certain winding force during the leading-out process and will not loosen. The multiple third paper guide rods 43 arranged side by side horizontally can well ensure that the wrapping paper 31 led out by the two paper loading assemblies 1 can be flatly attached together, thus ensuring the hot pressing and cutting of the subsequent paper bag packaging and pressing device. The fourth paper guide rods 44 are located on the feet at the rear end of the paper feeding rack 41, and the height is lower than that of the third paper guide rods 43. The wrapping paper 31 after being flatly attached is bent downwards through the fourth paper guide rods 44, so that the wrapping paper 31 has a certain tension force during the leading-out process from the third paper guide rods 43.

[0027] Among them, in order to further ensure the flatness of the wrapping paper 31, the paper feeding rack 41 is provided with a plurality of pairs of protruding connecting ends 411 between the third paper guiding rods 43. A first adjusting groove 412 is arranged inside the connecting end 411. A pair of pressing paper rods 45 arranged vertically are installed between the first adjusting grooves 412. There is an adjustable gap for the wrapping paper 31 to pass through between the pair of pressing paper rods 45. In specific implementation, by the adjustable gap, the pair of pressing paper rods 45 are adjusted to ensure that the surface height between the height of the gap and the horizontally arranged third paper guiding rod 43 is the same. The pair of pressing paper rods 45, especially the pressing paper rod 45 arranged above the gap, can tightly press the wrapping paper 31 from above, further ensuring the planar fitting of the wrapping paper 31 and the tightness of the pulling of the wrapping paper 31. The pressing paper rod 45 is rotatably arranged.

[0028] In this embodiment, for further improvement, the connecting end 411 is inclined, so that a pair of pressing paper rods 45 are arranged staggeredly up and down. By staggering each other, it is possible to avoid excessively increasing the paper feeding resistance of the wrapping paper 31 during the process of pressing the wrapping paper 31.

[0029] In this embodiment, for further improvement, a second adjusting groove 413 is formed on the side wall of the connecting end 411. The second adjusting groove 413 communicates with the first adjusting groove 412. A second bolt 46 abutted against the pressing paper rod 45 is arranged in the second adjusting groove 413. By means of the second bolt 46, a pair of pressing paper rods 45 can be adjustably fixed between the first adjusting grooves 412.

[0030] In specific implementation, the wrapping paper roll 3 selects a rotating roller 21 with a corresponding specification length according to its specification, and the wrapping paper roll 3 is fixedly sleeved on the rotating roller 21. The wrapping paper roll 3 is fixed by the two sides of the inserting plate 22. The adjusting sleeves 23 are arranged at both ends of the rotating roller 21, so that the bearings 25 on the adjusting sleeves 23 can be inserted and fixed in the inner sinking grooves 112 of the paper feeding rack 11. The wrapping paper 31 is led out from the wrapping paper roll 3, wound around the first paper guiding rod 14 and guided to the second paper guiding rod 42. Two groups of wrapping paper rolls 3 simultaneously use the second paper guiding rod 42 to be guided from the lower direction to the upper part of the paper feeding rack 41 and fit together. The fitting wrapping paper 31 is horizontally and fittingly guided through the third paper guiding rod 43. During the process of horizontally and fittingly guiding the wrapping paper 31 for paper feeding, an adjustable pressing paper rod 45 is also arranged. When the wrapping paper 31 passes through the gap between the adjustable pressing paper rods 45, the fitting degree and tightness between the wrapping papers 31 are further ensured. The wrapping paper 31 is finally guided to the paper bag packaging and pressing device through the fourth paper guiding rod 44. The wrapping paper 31 is hot-pressed and cut on the subsequent paper bag packaging and pressing device to obtain a double-side open paper bag.

[0031] In this embodiment, the wrapping paper roll 3 is adopted. Among the two groups of wrapping paper rolls 3, at least one group of the wrapping paper rolls 3 is the wrapping paper roll 3 coated with a glue strip produced by the applicant in the patent "An Automatic Gluing Device for Paper Packaging Bags" with the publication number of CN217473951U.

[0032] The above embodiments only illustrate the implementation manners of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A paper loading mechanism for an edge-opening paper bag, comprising two sets of paper loading components and one set of paper feeding components, wherein the two sets of paper loading components are arranged oppositely on both sides of the front end support feet of the paper feeding components, and characterized in that: Each group of the paper loading components includes an upper paper rack, a plurality of rotatable first paper guide rods are installed between the two side walls of the upper paper rack, a U-shaped groove is opened on the front end side wall of the upper paper rack, the U-shaped groove is rotatably connected to a paper roll rod, the paper roll rod includes a rotating roller and a movable joint, both ends of the rotating roller are provided with plug plates, the packaging paper roll is fixedly sleeved between the rotating rollers and positioned by the plug plates, both ends of the rotating roller are movably sleeved with movable joints, the movable joints make the two ends of the rotating roller extend between the U-shaped grooves, and the movable joints are connected and fixed by first bolts, the movable joints are provided with bearings, and the bearings The paper feeding gear is sleeved and fixed in the U-shaped groove, and a first paper feeding gear is provided at the end of one of the movable joints, and a second paper feeding gear corresponding to the first paper feeding gear is provided on the upper paper rack, and the first paper feeding gear is meshed with the second paper feeding gear, and the second paper feeding gear is coaxially connected with a paper feeding motor. Through the paper feeding motor, the second paper feeding gear is meshed to drive the first paper feeding gear, so that the rotating roller rotates to feed paper, and the packaging paper is led out through the packaging paper roll and then led out to the paper feeding assembly through the first paper guide rod. The paper feeding assembly sticks the packaging paper led out by the two upper paper assemblies together up and down and leads them out to the paper bag packaging pressing device at the same time.

2. According to claim 1, a paper feeding mechanism for an opposite-side opening paper bag is characterized in that: The paper feeding assembly includes a paper feeding frame, multiple pairs of second paper guide rods arranged in the vertical direction, multiple third paper guide rods arranged side by side in the horizontal direction, and two fourth paper guide rods. The packaging paper led out by the two groups of paper loading assemblies is respectively led out through multiple pairs of the second paper guide rods and attached to the third paper guide rods up and down, and is led out by the fourth paper guide rods.

3. The paper feeding mechanism for the side-opening paper bag according to claim 2, characterized in that: The paper feeding rack is provided with a plurality of pairs of protruding connecting ends between the third paper guide rods, a first adjusting groove is provided inside the connecting end, a pair of paper pressing rods arranged up and down are installed between the first adjusting grooves, and an adjustable gap is provided between the pair of paper pressing rods for the packaging paper to pass through.

4. The paper loading mechanism for the side-opening paper bag according to claim 3, characterized in that: The connecting end is arranged obliquely, so that the pair of paper pressing rods are arranged staggered up and down.

5. The paper loading mechanism for the side-opening paper bag according to claim 3, characterized in that: A second adjustment groove is provided on the side wall of the connecting end, the second adjustment groove is connected with the first adjustment groove, and a second bolt abutting against the paper pressing rod is provided in the second adjustment groove. By means of the second bolt, a pair of paper pressing rods can be adjusted and fixed between the first adjustment grooves.

6. The paper loading mechanism for the side-opening paper bag according to claim 1, characterized in that: An inner recessed groove parallel to the end surface of the U-shaped groove is arranged in the U-shaped groove, and the bearing is inserted and fixed in the inner recessed groove.

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