Feeding device of bag making machine

Abstract

The utility model discloses a feeding device of a bag making machine, and belongs to the technical field of bag making machines. Comprising a material rack, a feeding roller and a material pressing roller, the feeding roller is arranged on the material rack, the material pressing roller is arranged on the material rack located on the discharging side of the feeding roller, during feeding, a valve bag material roll is placed on the feeding roller, and then a valve bag is pulled to penetrate through the material pressing roller to enter a bag making machine; the deviation rectifying device comprises a material rack and further comprises an anti-loosening mechanism and a deviation rectifying assembly, the anti-loosening mechanism comprises a pressing rod, the pressing rod is hinged to the material rack and pressed on a valve bag material roll on a feeding roller, the deviation rectifying assembly comprises a deviation rectifying sensor and a deviation rectifying driver, and the deviation rectifying sensor and the deviation rectifying driver are arranged on the material rack. The position of a valve bag material coil on the feeding roller is sensed through a deviation rectifying sensor; through the design of the anti-loosening mechanism and the deviation rectifying assembly, the position of a valve bag in the feeding process is more accurate, and the quality of a finished valve bag product is improved.

Description

Technical Field

[0001] This utility model relates to a feeding device for a bag making machine, belonging to the field of bag making machine technology. Background Technology

[0002] Valve bags, commonly known as glued-bottom bags, are a popular international packaging material. They are filled through a valve at the top or bottom using specialized filling equipment, and then packed into a cube shape, resulting in neat, aesthetically pleasing, and environmentally friendly bags. Valve bags can be categorized by material: PP valve bags, PE valve bags, paper-plastic composite valve bags, kraft paper valve bags, and multi-layer kraft paper valve bags. PP valve bags are made of polypropylene woven fabric with a valve at the top or bottom, offering higher packaging efficiency than regular PP woven bags. PE valve bags are made of polyethylene woven fabric with a valve. Paper-plastic composite valve bags use plastic woven bags (referred to as fabric) as the base material, laminated using a casting method (fabric / film composite is two-in-one, fabric / film / paper composite is three-in-one). Kraft paper valve bags are primarily made of kraft paper, which is further divided into imported and domestic kraft paper.

[0003] Valve bags can also be classified by their opening type: top-opening valve bags, bottom-opening valve bags, and top-and-bottom-opening valve bags. Valve bags are mainly used for packaging powdered or granular solid materials and flexible items such as edible powders, chemical powders, fertilizers, synthetic materials, explosives, grains, salt, and minerals. They are particularly suitable for export companies, enhancing the packaging quality of their products.

[0004] The production of valve bags requires a feeding device. Valve bag rolls are typically large bundles. During feeding, as the large bundles are used, they become smaller bundles, which can cause some deviation during transport. This deviation can affect subsequent processes, such as the accuracy of the bag width after folding, the stability of the folding process, or cause unevenness. Furthermore, in some production stages, the valve bag material on the roll is continuously pulled and pulled during the feeding process. However, this pulling and pulling is not continuous and involves pauses. Due to inertia, when the pulling and pulling stops, the roll will continue to rotate for a while before stopping, sometimes even reversing. When the material is pulled and pulled again, it is easy for the material to deviate, affecting the quality of the valve bag. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a feeding device for a bag making machine.

[0006] The technical solution adopted in this utility model is as follows: a feeding device for a bag making machine is designed, including a material frame, a feeding roller, and a pressing roller. The feeding roller is installed on the material frame, and the pressing roller is installed on the material frame located on the discharge side of the feeding roller. During feeding, the valve bag roll is placed on the feeding roller, and then the valve bag is pulled through the pressing roller and enters the bag making machine. It also includes an anti-loosening mechanism and a correction component. The anti-loosening mechanism includes a pressure rod, which is hinged to the material frame and presses against the valve bag roll on the feeding roller. The correction component includes a correction sensor and a correction driver, which are respectively installed on the material frame. The correction sensor senses the position of the valve bag roll on the feeding roller. When a deviation occurs, the correction driver drives the feeding roller to slide back and forth to correct the position of the valve bag roll on the feeding roller.

[0007] Furthermore, the anti-loosening mechanism also includes a support arm and a connecting rod. The support arm is respectively provided at both ends of the connecting rod, and the pressure rod is provided between the two support arms. The connecting rod, support arm and pressure rod form a rectangular frame structure, and the connecting rod is rotatably connected to the material frame.

[0008] Furthermore, the material handling frame is provided with two sets of lugs, each lug having a through hole. The two ends of the connecting rod pass through the through holes of the corresponding lugs and extend out of the through holes. The support arm is installed on the end of the connecting rod that extends out of the through holes.

[0009] Furthermore, the ear seat includes a base plate and an ear plate. The base plate is fixed on the material handling frame, the ear plate is fixed on the base plate, the through hole is provided on the ear plate, and two ear plates are arranged side by side on the base plate.

[0010] Furthermore, the support arm is a two-section telescopic structure, and the telescopic structures are positioned by bolts. The two-section telescopic structure is a two-sleeve structure or a two-rectangular plate structure that are inserted into each other, and multiple positioning and limiting holes are provided on the two rectangular plates respectively, with positioning bolt assemblies passing through the holes.

[0011] Furthermore, a material platform is provided at one end of the material frame, a sliding plate is slidably provided on the material platform, support plates are provided at both ends of the sliding plate, the feeding roller is provided on the two support plates, and a correction driver is provided on the material platform located on one side of the sliding plate. The correction driver adopts a hydraulic telescopic component, and the telescopic end of the hydraulic telescopic component is fixedly connected to an adjacent support plate.

[0012] Furthermore, a correction sensor is respectively installed on both sides of the valve bag material roll on the material rack in the width direction, and the detection end of the correction sensor is set directly facing the valve bag material roll.

[0013] Furthermore, the material platform is provided with two opposing slide rails, each with a groove. The sliding plate is engaged in the groove and can slide along it. Each end of the slide rail is provided with a baffle, and the correction driver is mounted on one of the baffles.

[0014] Furthermore, the slide rail is a C-shaped slide rail with multiple positioning plates on its outer side. The positioning plates are provided with positioning holes, and bolt assemblies are inserted through the positioning holes to fix the slide rail to the material table.

[0015] Furthermore, a rectangular slide is provided on the material platform, and a corresponding rectangular slider is provided on the lower side of the sliding plate. The rectangular slider is locked in the rectangular slide and can slide along the rectangular slide.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention, through the design of an anti-loosening mechanism and a correction component, makes the valve bag feeding process more accurate, thereby improving the quality of the finished valve bags. By driving the correction component, the unwinding roller can be adjusted to prevent the valve bags from shifting during unwinding, thus improving product quality. The anti-loosening mechanism reduces the rotational inertia of the valve bag roll when the power unit starts / stops, preventing material from falling off the roll and reducing the likelihood of misalignment, thus minimizing valve bag shifting during transport. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the isometric view of this utility model.

[0020] Figure 2 This is a schematic diagram of the material handling frame of this utility model.

[0021] Figure 3 This is a schematic diagram of the assembly of the feeding roller and other components of this utility model.

[0022] In the diagram: 1. Material rack; 2. Feeding roller; 3. Pressure roller; 4. Valve bag material roll; 5. Pressure rod; 6. Correction sensor; 7. Correction driver; 8. Support arm; 9. Connecting rod; 10. Seat plate; 11. Ear plate; 12. Material platform; 13. Sliding plate; 14. Support plate; 15. Slide rail; 16. Baffle; 17. Positioning plate; 18. Rectangular slide rail; 19. Rectangular slider. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] like Figure 1-3 As shown, a feeding device for a bag making machine includes a material frame 1, a feeding roller 2, and a pressing roller 3. The feeding roller 2 is installed on the material frame 1, and the pressing roller 3 is installed on the material frame 1 located on the discharge side of the feeding roller 2. During feeding, the valve bag material roll 4 is placed on the feeding roller 2, and then the valve bag is pulled through the pressing roller 3 and enters the bag making machine, which is simple and convenient. The feeding device described in this embodiment also includes an anti-loosening mechanism and a correction component. The anti-loosening mechanism includes a pressure rod 5, which is hinged to the material frame 1 and presses against the valve pocket material roll 4 on the feeding roller 2, thereby preventing the material roll from loosening due to inertial rotation. The correction component includes a correction sensor 6 and a correction driver 7, which are respectively disposed on the material frame 1. The correction sensor 6 senses the position of the valve pocket material roll 4 on the feeding roller 2. When a deviation occurs, the correction driver 7 drives the feeding roller 2 to slide back and forth to correct the position of the valve pocket material roll 4 on the feeding roller 2.

[0027] It is understood that the correction sensor 6 and the correction drive are controlled by a controller, which can be a PLC controller or the like, and can be implemented using existing technology, so it will not be described in detail here.

[0028] Example 2

[0029] This embodiment, based on Embodiment 1, provides a more specific structural configuration of the anti-loosening mechanism. For example, the anti-loosening mechanism may further include a support arm 8 and a connecting rod 9. The support arm 8 is respectively installed at both ends of the connecting rod 9, and the pressure rod 5 is installed between the two support arms 8. The connecting rod 9, the support arms 8, and the pressure rod 5 form a rectangular frame structure. The connecting rod 9 is rotatably connected to the material frame 1, thereby realizing the hinged connection between the pressure rod 5 and the material frame 1. The anti-loosening structure has a simple overall design, readily available materials, is easy to manufacture, and has practical functions.

[0030] More specifically, the material frame 1 is provided with two sets of lugs, each with a through hole. The two ends of the connecting rod 9 are respectively inserted into the through holes of the corresponding lugs and protrude from the through holes, thereby realizing the rotatable installation connection between the connecting rod 9 and the material frame 1. The support arm 8 is installed on the end of the connecting rod 9 that protrudes from the through hole, and the support arm 8 limits the entire anti-loosening mechanism.

[0031] Example 3

[0032] This embodiment is a further optimization and refinement of the ear seat and support arm 8 structure based on embodiment 2. For example, it could be:

[0033] The ear support includes a base plate 10 and ear plates 11. The base plate 10 is fixed to the material frame 1, which can be fixed by welding or bolts. The ear plates 11 are fixed to the base plate 10. The through hole is provided on the ear plate 11, and two ear plates 11 are arranged side by side on the base plate 10 for higher support strength. The support arm 8 is a two-section telescopic structure, that is, two sections are spliced ​​together, and the two sections can slide and lock against each other, such as by bolt positioning and locking between the telescopic structures. The two-end telescopic structure is two sleeve structures or two rectangular plate structures that are inserted into each other, and multiple positioning and limiting holes are provided on the two rectangular plates, with positioning bolt assemblies passing through the holes.

[0034] Example 4

[0035] This embodiment is a further optimization and refinement of the material rack 1 structure based on embodiment 3, specifically as follows:

[0036] A material platform 12 is provided at one end of the material rack 1. A sliding plate 13 is slidably mounted on the material platform 12. Support plates 14 are respectively provided at both ends of the sliding plate 13. The feeding roller 2 is mounted on the two support plates 14. A correction drive 7 is provided on the material platform 12 located on one side of the sliding plate 13. The correction drive 7 adopts a hydraulic telescopic assembly. The telescopic end of the hydraulic telescopic assembly is fixedly connected to an adjacent support plate 14. A correction sensor 6 is respectively provided on both sides of the valve bag material roll 4 in the width direction on the material rack 1. The detection end of the correction sensor 6 is positioned facing the valve bag material roll 4.

[0037] Example 5

[0038] This embodiment is a further optimization and refinement of the material rack 1 structure based on embodiment 4, specifically as follows:

[0039] The material platform 12 is provided with two opposing slide rails 15. Each slide rail 15 has a groove, and the sliding plate 13 is engaged within the groove and can slide along it. Each end of the slide rail 15 has a baffle 16, and the correction actuator 7 is mounted on one of the baffles 16. The slide rail 15 is a C-shaped slide rail, simple and practical in structure. Multiple positioning plates 17 are provided on its outer side, each with positioning holes. Bolt assemblies are inserted through these holes to fix the slide rail 15 to the material platform 12. The material platform 12 has a rectangular slide rail 18. A corresponding rectangular slider 19 is provided under the sliding plate 13. The rectangular slider 19 is engaged within the rectangular slide rail 18 and can slide along it, making the sliding process of the sliding plate 13 more stable.

[0040] Furthermore, in the description of this utility model, unless otherwise stated, the terms "multiple," "multiple roots," and "multiple groups" mean two or more, and "several," "several roots," and "several groups" mean one or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used only for descriptive purposes and should not be construed as indicating or implying relative importance.

[0041] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A feeding device for a bag-making machine, comprising a material frame, a feeding roller, and a pressing roller, wherein the feeding roller is disposed on the material frame, and the pressing roller is disposed on the material frame located on the discharge side of the feeding roller; during feeding, a valve bag roll is placed on the feeding roller, and then the valve bag is pulled through the pressing roller and enters the bag-making machine, characterized in that: It also includes an anti-loosening mechanism and a correction assembly. The anti-loosening mechanism includes a pressure rod that is hinged to the material frame and presses against the valve bag material roll on the feeding roller. The correction assembly includes a correction sensor and a correction driver that are respectively disposed on the material frame. The correction sensor senses the position of the valve bag material roll on the feeding roller. When a deviation occurs, the correction driver drives the feeding roller to slide back and forth to correct the position of the valve bag material roll on the feeding roller.

2. The feeding device for the bag making machine according to claim 1, characterized in that: The anti-loosening mechanism also includes a support arm and a connecting rod. The support arm is provided at both ends of the connecting rod, and the pressure rod is provided between the two support arms. The connecting rod, support arm and pressure rod form a rectangular frame structure, and the connecting rod is rotatably connected to the material frame.

3. The feeding device for the bag making machine according to claim 2, characterized in that: The material handling frame is provided with two sets of lugs, each with a through hole. The two ends of the connecting rod pass through the through holes of the corresponding lugs and protrude from the through holes. The support arm is installed on the end of the connecting rod that protrudes from the through holes.

4. The feeding device for the bag making machine according to claim 3, characterized in that: The ear seat includes a base plate and an ear plate. The base plate is fixed on the material handling frame, and the ear plate is fixed on the base plate. The through hole is provided on the ear plate, and two ear plates are arranged side by side on the base plate.

5. The feeding device for the bag making machine according to claim 3, characterized in that: The outrigger is a two-section telescopic structure, and the telescopic structures are positioned by bolts. The two-section telescopic structure is a two-sleeve structure or a two-rectangular plate structure that are inserted into each other, and multiple positioning and limiting holes are provided on the two rectangular plates respectively, with positioning bolt assemblies passing through the holes.

6. The feeding device for the bag-making machine according to any one of claims 1-5, characterized in that: A material platform is provided at one end of the material rack. A sliding plate is slidably mounted on the material platform. Support plates are provided at both ends of the sliding plate. The feeding roller is mounted on the two support plates. A correction driver is provided on the material platform located on one side of the sliding plate. The correction driver adopts a hydraulic telescopic assembly. The telescopic end of the hydraulic telescopic assembly is fixedly connected to an adjacent support plate.

7. The feeding device for the bag making machine according to claim 6, characterized in that: A correction sensor is installed on each side of the material rack in the width direction of the valve bag material roll, and the detection end of the correction sensor is set directly facing the valve bag material roll.

8. The feeding device for the bag making machine according to claim 7, characterized in that: The material platform is provided with two opposing slide rails, each with a groove. The sliding plate is engaged in the groove and can slide along it. Each end of the slide rail is provided with a baffle, and the correction driver is mounted on one of the baffles.

9. The feeding device for the bag making machine according to claim 8, characterized in that: The slide rail is a C-shaped slide rail with multiple positioning plates on its outer side. The positioning plates are provided with positioning holes, and bolt assemblies are inserted through the positioning holes to fix the slide rail to the material table.

10. The feeding device for the bag making machine according to claim 9, characterized in that: The material platform is provided with a rectangular slide rail, and a corresponding rectangular slider is provided on the lower side of the slide plate. The rectangular slider is locked in the rectangular slide rail and can slide along the rectangular slide rail.

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