Packaging bag opening device

Abstract

The utility model discloses a packaging bag opening device and belongs to the technical field of filling, the packaging bag opening device comprises a filling mechanism for filling packaging bags, the filling mechanism further comprises a discharging hopper, a fixing plate and a bag opening mechanism, and the bag opening mechanism comprises a front bag opening assembly and a rear bag opening assembly. The top of the front bag opening assembly and the top of the rear bag opening assembly are in driving connection with an upper expansion assembly, the upper expansion assembly is fixedly installed at the two ends of the bottom of the fixing plate, a lower expansion assembly is connected between the front bag opening assembly and the rear bag opening assembly, and the two ends of the lower expansion assembly are hinged to the front bag opening assembly and the rear bag opening assembly. The upper expanding assembly and the lower expanding assembly drive the front bag opening assembly and the rear bag opening assembly correspondingly, so that the front bag opening assembly and the rear bag opening assembly open an external packaging bag opening, the size of a discharging hopper of discharging equipment can be conveniently adjusted to form a proper opening, and the risk of material scattering during discharging is reduced.

Description

Technical Field

[0001] The utility model relates to the field of filling, in particular to a packaging bag supporting device. Background Art

[0002] In places such as transportation and processing, it is necessary to fill the processed or transported materials. During filling, the materials are unloaded into packaging bags to facilitate subsequent transportation and storage. When filling the packaging bags, the material of the packaging bags is relatively soft, and people are required to open the mouth of the packaging bags during filling.

[0003] In the prior art, there is a packaging bag opening device with application number CN202320783055.9. In the above scheme, by "adjusting the spacing between the arc-shaped limiting plates according to the size of the bag opening", the above scheme only expands the packaging bag through the expansion of two sets of arc-shaped limiting plates, resulting in the maximum width of the expanded packaging bag being only the same as the width of the arc-shaped limiting plates, resulting in the expanded shape being a strip. If the size of the feeding funnel of the feeding equipment is large, the strip-shaped opening of the packaging bag is difficult to perfectly correspond to the feeding funnel, and it is easy to spill the material, which is not convenient for adjusting the width and length of the packaging bag opening as needed. How to invent a packaging bag opening device to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a packaging bag support device, which aims to improve the problem that the packaging bag is stretched into a strip shape and the material is easily scattered when the material is discharged from the discharge funnel.

[0005] The utility model is realized as follows: a packaging bag support device, a filling mechanism for filling the packaging bag, the filling mechanism also includes a feeding funnel and a fixing plate, and also includes

[0006] A bag-supporting mechanism, the bag-supporting mechanism includes a front bag-supporting assembly and a rear bag-supporting assembly, the front bag-supporting assembly and the top drive of the front bag-supporting assembly are connected with an upper expansion assembly, the upper expansion assembly is fixedly mounted at both ends of the bottom of the fixed plate, a lower expansion assembly is connected between the front bag-supporting assembly and the rear bag-supporting assembly, and both ends of the lower expansion assembly are hinged to the front bag-supporting assembly and the rear bag-supporting assembly.

[0007] In a preferred technical solution of the utility model, two groups of the front support bag assemblies are provided, and each group of the front support bag assemblies includes a front support, and a front support plate is fixedly connected to the bottom of the front support.

[0008] In a preferred technical solution of the utility model, the front support is V-shaped, and a plurality of front limit strips are equally divided and fixedly connected to the outer side of the front support plate.

[0009] In a preferred technical solution of the utility model, two groups of rear support bag assemblies are provided, each group of rear support bag assemblies includes a rear support, the bottom of the rear support is fixedly connected to a rear support plate, and the outer top of the rear support plate is hinged to a limit plate through a torsion spring.

[0010] In a preferred technical solution of the utility model, the rear support is V-shaped, an extension plate is obliquely arranged on the top of the limiting plate, and a plurality of rear limiting strips are equally and fixedly connected on corresponding surfaces of the limiting plate and the rear support plate.

[0011] In a preferred technical solution of the present utility model, the upper expansion assembly includes positioning columns, which are fixedly installed at both ends of the fixed plate, and the positioning columns are respectively located between two groups of front supports and two groups of rear supports. The two sides of the positioning columns are respectively fixedly connected with first electric push rods, and the ends of the first electric push rods are respectively limitedly connected with the two groups of front supports and the front support plate, and sliding rods are provided on both sides of the positioning columns. The sliding rods are limitedly rotatably installed at the bottom of the fixed plate, and the front supports and the rear supports are limitedly slidably installed on the sliding rods.

[0012] In a preferred technical solution of the present invention, both ends of the sliding rod are connected with positioning blocks for limited rotation, the positioning blocks are fixedly installed on the bottom of the fixed plate, the tops of the front support and the rear support are respectively rotatably sleeved on the sliding rod, and the front support and the front support plate are slidably connected to the sliding rod.

[0013] In a preferred technical solution of the utility model, the end of the first electric push rod is connected to a connecting plate for limited rotation, the other end of the connecting plate is slidably sleeved on the sliding rod, and the side of the connecting plate close to the front support and the rear support is respectively connected to the front support and the rear support for limited rotation.

[0014] In a preferred technical solution of the utility model, the upper expansion assembly includes a connecting column, both ends of which are respectively connected to a second electric push rod, and both ends of the second electric push rod are respectively hinged to the front support and the rear support.

[0015] In a preferred technical solution of the present utility model, the end of the second electric push rod is fixedly connected with a hinge block, and the hinge block is hinged to the two groups of the front support and the rear support respectively.

[0016] The beneficial effect of the utility model is as follows: the utility model obtains a packaging bag supporting device through the above-mentioned design. When in use, a part of the top of the packaging bag is placed between two groups of limit plates and the rear support plate to cooperate with the elastic force of the torsion spring to position the packaging bag in advance, and at the same time, the other side of the packaging bag is put on the outside of the front support plate. At this time, the first electric push rod and the second electric push rod are controlled to extend to open the packaging bag. When the first electric push rod expands, the edge of the packaging bag will slide between the limit plate and the rear support plate to adapt to different opening sizes. At the same time, the second electric push rod drives the front support and the rear support to open to both sides to increase the size of the opening. The appropriate opening is adjusted according to the size of the discharge hopper to reduce the risk of spilling material during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the filling mechanism structure provided by the embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the bag support mechanism structure provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure of the front support bag assembly provided in an embodiment of the utility model;

[0021] Figure 4 This is a schematic structural diagram of a rear support bag assembly provided in an embodiment of the utility model.

[0022] In the figure: 100-filling mechanism; 110-discharging funnel; 120-fixed plate; 200-bag supporting mechanism; 210-front bag supporting assembly; 211-front support; 212-front support plate; 213-front limit strip; 220-rear bag supporting assembly; 221-rear support; 222-rear support plate; 223-limit plate; 224-rear limit strip; 230-upper expansion assembly; 231-positioning column; 232-first electric push rod; 233-connecting plate; 234-sliding rod; 235-positioning block; 240-lower expansion assembly; 241-second electric push rod; 242-connecting column; 243-hinge block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 and Figure 2 The utility model provides a technical solution: a bag support device for packaging bags, a filling mechanism 100 for filling packaging bags, the filling mechanism 100 also includes a feeding funnel 110 and a fixing plate 120, and also includes

[0025] The bag-stretching mechanism 200 includes a front bag-stretching assembly 210 and a rear bag-stretching assembly 220. The front bag-stretching assembly 210 and the top drive of the front bag-stretching assembly 210 are connected with an upper expansion assembly 230. The upper expansion assembly 230 is fixedly installed at both ends of the bottom of the fixed plate 120. A lower expansion assembly 240 is connected between the front bag-stretching assembly 210 and the rear bag-stretching assembly 220. Both ends of the lower expansion assembly 240 are hinged to the front bag-stretching assembly 210 and the rear bag-stretching assembly 220. The upper expansion assembly 230 and the lower expansion assembly 240 respectively drive the front bag-stretching assembly 210 and the rear bag-stretching assembly 220, so that the front bag-stretching assembly 210 and the rear bag-stretching assembly 220 can stretch the external packaging bag opening to facilitate the unloading of the unloading equipment and prevent the material from spilling.

[0026] The bag-supporting mechanism 200 is installed as required and is not necessarily installed on the fixing plate 120 .

[0027] See also Figure 2 and Figure 3 There are two groups of front support bag assemblies 210, each group of front support bag assemblies 210 includes a front support 211, and a front support plate 212 is fixedly connected to the bottom of the front support 211. The front support 211 is V-shaped, and a plurality of front limit strips 213 are equally fixedly connected to the outer side of the front support plate 212. The V-shaped configuration of the front support 211 facilitates the opening of the lower expansion assembly 240, and facilitates the opening of the packaging bag to a larger size.

[0028] See also Figure 2 and Figure 4, two groups of rear support bag assemblies 220 are provided, each group of rear support bag assemblies 220 includes a rear support 221, a rear support plate 222 is fixedly connected to the bottom of the rear support 221, and a limit plate 223 is hinged to the outer top of the rear support plate 222 through a torsion spring. The rear support 221 is V-shaped, and an extension plate is tiltedly provided on the top of the limit plate 223. A plurality of rear limit strips 224 are equally fixedly connected to the corresponding side of the limit plate 223 and the rear support plate 222. The V-shaped setting of the rear support 221 facilitates the opening of the lower expansion assembly 240, and facilitates the opening of the packaging bag to a larger size. At the same time, the rear limit strip 224 and the front limit strip 213 are used to increase friction to prevent the packaging bag from slipping, and the limit plate 223 is used to position the packaging bag in advance before starting the expansion.

[0029] See also Figures 2 to 4 The upper expansion component 230 includes a positioning column 231, which is fixedly installed at both ends of the fixed plate 120. The positioning columns 231 are respectively located between the two groups of front supports 211 and the two groups of rear supports 221. The two sides of the positioning column 231 are respectively fixedly connected with the first electric push rod 232. The ends of the first electric push rod 232 are respectively connected with the two groups of front supports 211 and the front support plate 212. Slide rods 234 are arranged on both sides of the positioning column 231. The slide rod 234 is limitedly rotated and installed at the bottom of the fixed plate 120. The front supports 211 and the rear supports 221 are limitedly slidably installed on the slide rod 234. The first electric push rod 232 is controlled by a single-chip microcomputer and is connected to an external power supply.

[0030] Both ends of the slide bar 234 are connected to the positioning blocks 235 for limited rotation, and the positioning blocks 235 are fixedly installed at the bottom of the fixed plate 120. The tops of the front support 211 and the rear support 221 are respectively connected to the slide bar 234 for rotation, and the front support 211 and the front support plate 212 are connected to the slide bar 234 for sliding. The end of the first electric push rod 232 is connected to the connecting piece 233 for limited rotation, and the other end of the connecting piece 233 is connected to the slide bar 234 for sliding. The side of the connecting piece 233 close to the front support 211 and the rear support 221 is respectively connected to the front support 211 and the rear support 221 for limited rotation. When the front support 211 and the rear support 221 expand outward, they will rotate, and the rotation connection with the connecting piece 233 will not affect the adjustment of the distance between the front support 211 and the rear support 221 by the first electric push rod 232.

[0031] The upper expansion assembly 230 includes a connecting column 242, and the two ends of the connecting column 242 are respectively connected to the second electric push rod 241, and the two ends of the second electric push rod 241 are respectively hinged to the front support 211 and the rear support 221. The end of the second electric push rod 241 is fixedly connected to a hinge block 243, and the hinge block 243 is respectively hinged to the two groups of front supports 211 and rear supports 221. The second electric push rod 241 extends or contracts to both sides to adjust the distance between the front support 211 and the rear support 221. At the same time, pressure sensors can be installed on the front support plate 212 and the rear support plate 222. The first electric push rod 232 and the second electric push rod 241 are controlled by a single chip microcomputer while detecting the size of the pressure. If the pressure reaches a certain value, the packaging bag is stretched and stops extending, which is convenient and quick.

[0032] Working principle: Press the top of the limit plate 223 to separate the bottom of the limit plate 223 from the rear support plate 222, place a part of the top of the packaging bag between the two sets of limit plates 223 and the rear support plate 222, and use the elastic force of the torsion spring to position the packaging bag in advance, and at the same time, put the other side of the packaging bag on the outside of the front support plate 212, then control the first electric push rod 232 and the second electric push rod 241 to extend to open the packaging bag, when the first electric push rod 232 expands, the edge of the packaging bag will slide between the limit plate 223 and the rear support plate 222 to adapt to different opening sizes, and at the same time, the second electric push rod 241 drives the front support 211 and the rear support 221 to open to both sides to increase the size of the opening.

[0033] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A packaging bag support device, a filling mechanism for filling packaging bags, the filling mechanism also includes a feeding funnel and a fixing plate, characterized in that: Also includes A bag-supporting mechanism, the bag-supporting mechanism includes a front bag-supporting assembly and a rear bag-supporting assembly, the front bag-supporting assembly and the top drive of the front bag-supporting assembly are connected with an upper expansion assembly, the upper expansion assembly is fixedly mounted at both ends of the bottom of the fixed plate, a lower expansion assembly is connected between the front bag-supporting assembly and the rear bag-supporting assembly, and both ends of the lower expansion assembly are hinged to the front bag-supporting assembly and the rear bag-supporting assembly.

2. A packaging bag support device according to claim 1, characterized in that: The front support bag assembly is provided with two groups, and each group of the front support bag assembly comprises a front support, and the bottom of the front support is fixedly connected with a front support plate.

3. A packaging bag support device as claimed in claim 2, characterized in that: The front support is V-shaped, and a plurality of front limit strips are equally fixedly connected to the outer side of the front support plate.

4. A packaging bag support device as claimed in claim 2, characterized in that: The rear support bag assembly is provided with two groups, and each group of the rear support bag assembly includes a rear support, the bottom of the rear support is fixedly connected to a rear support plate, and the outer top of the rear support plate is hinged to a limit plate through a torsion spring.

5. A packaging bag support device as claimed in claim 4, characterized in that: The rear support is V-shaped, an extension plate is obliquely arranged on the top of the limit plate, and a plurality of rear limit strips are equally and fixedly connected on one side of the limit plate and the rear support plate.

6. A packaging bag support device as claimed in claim 4, characterized in that: The upper expansion assembly includes a positioning column, which is fixedly installed at both ends of the fixed plate, and the positioning columns are respectively located between two groups of front supports and two groups of rear supports. First electric push rods are fixedly connected to both sides of the positioning column, and ends of the first electric push rods are respectively connected to the two groups of front supports and the front support plate. Sliding rods are provided on both sides of the positioning column. The sliding rods are rotationally installed at the bottom of the fixed plate, and the front supports and the rear supports are slidingly installed on the sliding rods.

7. A packaging bag support device as claimed in claim 6, characterized in that: Both ends of the slide bar are connected with positioning blocks for limited rotation. The positioning blocks are fixedly installed on the bottom of the fixed plate. The tops of the front support and the rear support are respectively rotatably sleeved on the slide bar, and the front support and the front support plate are slidably connected to the slide bar.

8. A packaging bag support device as claimed in claim 6, characterized in that: The end of the first electric push rod is connected to a connecting piece for limited rotation, and the other end of the connecting piece is slidably sleeved on the sliding rod. The side of the connecting piece close to the front support and the rear support is respectively connected to the front support and the rear support for limited rotation.

9. A packaging bag support device as claimed in claim 6, characterized in that: The upper expansion assembly comprises a connecting column, both ends of which are respectively connected to a second electric push rod, and both ends of the second electric push rod are respectively hinged to the front support and the rear support.

10. A packaging bag support device as claimed in claim 9, characterized in that: The end of the second electric push rod is fixedly connected with a hinge block, and the hinge block is hinged to the two groups of the front support and the rear support respectively.

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