Breathable valve bag extrusion packaging device

Abstract

The utility model discloses a breather valve bag extrusion packing device, including: feed nozzle, weighing support, support plate, steel wire mesh plate and extrusion swing mechanism, weighing support includes hoisting frame, support frame and base, hoisting frame and base are located the same side of support frame, feed nozzle is supported the support frame installation, and the support plate is supported the steel wire mesh plate and the extrusion swing mechanism. One end of the supporting plate is connected with a discharging port of the discharging device, the other end of the supporting plate extends into the supporting frame, the supporting plate is installed under the feeding nozzle through the supporting frame, the two extrusion swing mechanisms are symmetrically hoisted on the two sides of the hoisting frame, a steel wire mesh plate is installed on the inner side of each extrusion swing mechanism, and the steel wire mesh plates are connected with the supporting frame. The two extrusion swing mechanisms can be opened and closed synchronously to drive the two steel wire mesh plates to move oppositely at the same time, and the extrusion action is completed. Through the mode, air in the bag can be removed through extrusion, the efficiency is high, the effect is good, the stacking density in the bag body is uniform, and hardening is avoided.

Description

Technical Field

[0001] The utility model relates to the field of packaging equipment, in particular to a breathable valve bag extrusion packaging device. Background Art

[0002] When powder products are bagged, some powders are light in weight and occupy a large volume. Therefore, special equipment is usually required to remove excess air from the bag before a sufficient amount of product can be placed in the bag. The commonly used removal method is to use a breathable valve bag to fill the bag and then place the bag in a high vacuum negative pressure box. The negative pressure is used to suck the air in the bag out of the air holes on the bag, thereby reducing the bagging volume. However, when this method is used, due to the low external pressure, the powder will adhere to the inner surface of the bag under the action of suction. On the one hand, the packing density of each area in the bag is different, and the powder close to the inner surface of the bag has a higher packing density, which is easy to agglomerate and block the air holes, resulting in the failure of the ventilation function of the bag. On the other hand, due to the action of intermolecular forces, the powder attached to the bag is tightly attached to the inner wall of the bag, which will make it difficult to separate the powder from the bag when it is taken out for use, and there will be a lot of residual material in the bag. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a breathable valve bag packaging device, which can remove the air in the material by squeezing, so as to make the material in the bag compact and facilitate refilling the bag with material.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a breathable valve bag extrusion packaging device, the breathable valve bag extrusion packaging device is connected to the discharge pipe of the blanking device of the packaging machine, including: a feed nozzle, a weighing bracket, a support plate, a wire mesh plate and an extrusion swinging mechanism, the weighing bracket includes a lifting frame, a support frame and a base, the lifting frame and the base are located on the same side of the support frame, the feed nozzle is installed on the support frame, one end is connected to the discharge port of the blanking device, and the other end extends into the interior of the support frame, the support plate is installed directly below the feed nozzle on the support frame, there are two extrusion swinging mechanisms, which are symmetrically lifted on both sides of the lifting frame, and a wire mesh plate is installed on the inside of each extrusion swinging mechanism. The two extrusion swinging mechanisms can open and close synchronously, driving the two wire mesh plates to move toward each other at the same time to complete the extrusion action.

[0005] In a preferred embodiment of the present invention, there are two extrusion swing mechanisms, each of which includes a large swing rod, a small swing rod, a mesh plate connecting seat, an inner hanging plate, an outer hanging plate and a synchronous cylinder. The outer hanging plate is installed on the outside of the lifting position on one side of the lifting frame, and the inner hanging plate is installed on the inner side of the lifting position on the same side of the lifting frame. The bottom of the mesh plate connecting seat is fixed in the middle of the wire mesh plate. The length of the large swing rod is greater than the length of the small swing rod. There are two large swing rods, and the top of each large swing rod is hinged to the outer hanging plate. The rod body of the large swing rod is hinged to the mesh plate connecting seat. There are also two small swing rods, and the top of each small swing rod is hinged to the inner hanging plate. The tail end of the rocker arm is hinged to the mesh plate connecting seat, the four hinge positions on the outer hanger plate and the inner hanger plate are on the same plane, the four hinge positions on the mesh plate connecting seat are also on the same plane and the relative positions are the same as the relative positions between the four hinge positions on the outer hanger plate and the inner hanger plate, the distance from the hinge position on the large rocker arm to the hinge position at the top is the same as the distance from the hinge position at the tail end of the small rocker arm to the hinge position at the top, the synchronous cylinder is installed on the base, a hinge is installed at the end of the telescopic rod of the synchronous cylinder, the hinge is hinged to the end of one of the two large rockers, the synchronous cylinders of the two extrusion swing mechanisms are staggered and symmetrical on the fixed base, and the telescopic directions of the telescopic rods are opposite.

[0006] In a preferred embodiment of the present invention, the feed nozzle is located between the two steel mesh plates, the support plate is located in the middle of the lower edge of the movement trajectory of the two steel mesh plates, and when the steel mesh plates move toward each other to the extreme position, the distance between the two steel mesh plates is greater than the diameter of the feed nozzle.

[0007] In a preferred embodiment of the present invention, the air valve bag extrusion packaging device is installed in a closed negative pressure box, a negative pressure pipe interface is provided on the top of the negative pressure box, and a transparent observation window is installed on the front door of the negative pressure box.

[0008] In a preferred embodiment of the present invention, a dust hood is installed in the space above the weighing bracket, and the feed nozzle extends into the space below the dust hood. A dust suction pipe is connected to the tube of the feed nozzle, and the dust suction pipe is externally connected to a negative pressure device. Dust generated by feeding is drawn out of the box through the gap between the dust suction pipe and the feed nozzle. The dust suction pipe is connected in an eccentric manner, and the maximum gap after connection is located directly above the feed nozzle. The dust hood is made of a transparent material.

[0009] The beneficial effects of the present invention are as follows: the present invention is a modification of the existing breathable valve bag packaging mechanism, replacing the traditional negative pressure bagging with an extrusion bagging method. The air is squeezed out of the vent holes on the bag body through mechanical squeezing, reducing the space occupied by the material in the bag and facilitating the refilling of the bag. Since the bag body is directly squeezed and vibrated during this process, the powder in the bag will not clump and adhere to the inner wall of the bag body, nor will it block the vent holes on the bag body. Moreover, the bulk density of the powder in the bag after squeezing is uniform, and during use, a large amount of the powder will not adhere to the inner wall of the bag body and will be difficult to fall off, thereby reducing material waste and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a side structural diagram of a preferred embodiment of the utility model;

[0011] Figure 2 yes Figure 1 A magnified schematic diagram of the local structure;

[0012] Figure 3 is a front view structural diagram of the embodiment shown in the open state;

[0013] Figure 4 is a schematic diagram of the front view of the structure of the embodiment shown in the closed state;

[0014] Figure 5 is a schematic side view of the mounting structure of the illustrated embodiment;

[0015] Figure 6 is a schematic diagram of the front view of the installation structure of the embodiment shown;

[0016] The markings of the components in the accompanying drawings are as follows:

[0017] 1. Breathable valve bag squeeze packaging device, 2. Negative pressure box, 3. Dust hood, 4. Negative pressure pipe interface, 5. Observation

[0018] Window, 6. Unloading device;

[0019] 101. Weighing bracket, 102. Extrusion swing mechanism, 103. Steel wire mesh, 104. Mesh plate connecting seat, 105.

[0020] Feed nozzle, 106. Dust suction pipe, 107. Synchronous cylinder, 108. Support platform;

[0021] 1011. Hoisting frame, 1012. Support frame, 1013. Base;

[0022] 1021. Large swing arm, 1022. Small swing arm, 1023. Inner hanger plate, 1024. Outer hanger plate. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0024] See also Figure 1 and Figure 2 , the embodiments of the present utility model include:

[0025] A breathable valve bag extrusion packaging device 1, which is connected to the discharge pipe of the unloading device 6 of the packaging machine. The breathable valve bag extrusion packaging device 1 is installed in a closed negative pressure box 2, and a negative pressure pipe interface 4 is provided on the top of the negative pressure box 2. A transparent observation window 5 is installed on the front box door of the negative pressure box 2. The breathable valve bag extrusion packaging device 1 includes: a feed nozzle 105, a weighing bracket 101, a support plate 108, a wire mesh plate 103 and an extrusion swinging mechanism 102. The weighing bracket 101 includes a lifting frame 1011, a support frame 1012 and a base 1013. The lifting frame 1011 and the base 1013 are located on the same side of the support frame 1012. The feed nozzle 105 is installed on the support frame 1012, one end is connected to the discharge port of the blanking device 6, and the other end extends into the interior of the support frame 1012. The support plate 108 is installed directly below the feed nozzle 105 on the support frame 1012. There are two extrusion swinging mechanisms 102, which are symmetrically lifted on both sides of the lifting frame 1011. A wire mesh plate 103 is installed on the inside of each extrusion swinging mechanism 102. The two extrusion swinging mechanisms 102 can open and close synchronously, driving the two wire mesh plates 103 to move toward each other at the same time to complete the extrusion action.

[0026] There are two extrusion swing mechanisms 102, each of which includes a large swing rod 1021, a small swing rod 1022, a mesh plate connecting seat 104, an inner hanging plate 1023, an outer hanging plate 1024 and a synchronous cylinder 107. The outer hanging plate 1024 is installed on the outside of the hanging position on one side of the hanging frame 1011, and the inner hanging plate 1023 is installed on the inside of the hanging position on the same side of the hanging frame 1011. The bottom of the mesh plate connecting seat 104 is fixed in the middle of the wire mesh plate 103. The length of the large swing rod 1021 is greater than the length of the small swing rod 1022. There are two large swing rods 1021, and the top of each large swing rod 1021 is hinged to the outer hanging plate 1024. The rod body of the large swing rod 1021 is hinged to the mesh plate connecting seat 104. There are also two small swing rods 1022, and the top of each small swing rod 1022 is hinged to the outer hanging plate 1024. The ends are hinged to the inner hanger 1023, the tail end of the small rocker arm 1023 is hinged to the mesh plate connecting seat 104, the four hinge positions on the outer hanger 1024 and the inner hanger 1023 are on the same plane, the four hinge positions on the mesh plate connecting seat 104 are also on the same plane and the relative positions are the same as the relative positions between the four hinge positions on the outer hanger 1024 and the inner hanger 1023, the distance from the hinge position on the rod body of the large rocker arm 1021 to the hinge position at the top is the same as the distance from the hinge position at the tail end of the small rocker arm 1022 to the hinge position at the top, the synchronous cylinder 107 is installed on the base, and a hinge is installed at the end of the telescopic rod of the synchronous cylinder, and the hinge is hinged to the end of one of the two large rockers. The synchronous cylinders of the two extrusion swing mechanisms 102 are staggered and symmetrical on the fixed base, and the directions of extension and retraction are opposite. In this way, each extrusion swing mechanism 102 is a parallelogram swing structure composed of two large swing rods 1021, two small swing rods 1022 and a mesh plate connecting seat 104. When the telescopic rods of the two synchronous cylinders are extended and retracted at the same time, the corresponding large swing rods 1021 on both sides are pushed to swing at the same time. The parallelogram swing structure can drive the two mesh plate connecting seats 104 on both sides to make overall translation in opposite directions, thereby driving the wire mesh plate 103 to complete the extrusion and closing actions.

[0027] The feed nozzle 105 is located between the two steel mesh plates 103, and the support plate 108 is located in the middle of the lower edge of the movement trajectory of the two steel mesh plates 103. When the steel mesh plates 103 move toward each other to the extreme position, the distance between the two steel mesh plates 103 is greater than the diameter of the feed nozzle 105. In this way, the entire bag body will be within the effective area of ​​the two steel mesh plates 103 during loading. In actual implementation, the extreme position is controlled by the telescopic range of the telescopic rod of the synchronous cylinder 107. After the extreme position is set, the two steel mesh plates 103 will not collide with the feed nozzle 105 and the support plate 108 during movement, thereby preventing damage to the feed nozzle 105 and the steel mesh plates 103.

[0028] A dust hood 103 is installed in the space above the weighing bracket 101, and the feed nozzle 105 extends into the space below the dust hood 103. A dust pipe 106 is sleeved on the tube body of the feed nozzle 105. The sleeved connection of the dust pipe 106 is eccentric, and the maximum gap after sleeved is located directly above the feed nozzle 105. The dust pipe 106 is externally connected to a negative pressure device, and the dust generated by feeding is sucked out of the box through the gap between the dust pipe 106 and the feed nozzle 105. In this way, the material that normally falls into the bag during feeding will not be sucked away by the dust pipe 106. Only the dust that rises above the dust pipe 106 will be sucked away from the gap, reducing material loss during the loading process. The dust hood 3 is made of transparent material. The loading and extrusion status can be conveniently observed through the observation window 5.

[0029] The working principle of this embodiment is as follows:

[0030] When bagging is complete, the movement of the synchronous cylinders 107, which are arranged symmetrically, drives the large swing arms 1021 on both sides to close toward each other simultaneously. Since the large swing arms 1021, the small swing arms 1022, and the mesh plate connecting seat 104 together form a parallelogram swing structure, when the large swing arms 1021 on both sides close, the two mesh plate connecting seats 104 drive the two wire mesh plates 103 to move toward each other simultaneously, squeezing the packaging bag on the support plate 108 and squeezing out excess air in the bag. In addition, the feed nozzle 105 is equipped with a dust suction pipe 106 and is placed in a negative pressure box. It can promptly suck away dust generated during the loading and extrusion processes, with almost no impact on the external environment. This loading method can avoid the situation in which the material in the bag is partially attached to the inner side of the bag due to vacuum suction during traditional powder vacuum bagging. On the one hand, the stacking density of the material in the bag is uneven, and on the other hand, it is easy for residual material to be left when the material in the bag is discharged, which is difficult to remove completely, resulting in material waste.

[0031] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A vent valve bag extrusion packaging device, the vent valve bag extrusion packaging device is connected to the discharge pipe of the blanking device of the packaging machine, characterized in that: include: The feed nozzle, weighing bracket, support plate, wire mesh plate and extrusion swing mechanism, the weighing bracket includes a lifting frame, a support frame and a base, the lifting frame and the base are located on the same side of the support frame, the feed nozzle is installed on the support frame, one end is connected to the discharge port of the blanking device, and the other end extends into the interior of the support frame, the support plate is installed directly below the feed nozzle on the support frame, there are two extrusion swing mechanisms, which are symmetrically lifted on both sides of the lifting frame, and a wire mesh plate is installed on the inside of each extrusion swing mechanism. The two extrusion swing mechanisms can open and close synchronously, driving the two wire mesh plates to move toward each other at the same time to complete the extrusion action.

2. The air-valve bag squeeze packaging device according to claim 1, characterized in that: There are two extrusion swing mechanisms, each of which includes a large swing arm, a small swing arm, a mesh plate connecting seat, an inner hanging plate, an outer hanging plate and a synchronous cylinder. The outer hanging plate is installed on the outside of the hanging position on one side of the hanging frame, and the inner hanging plate is installed on the inside of the hanging position on the same side of the hanging frame. The bottom of the mesh plate connecting seat is fixed in the middle of the wire mesh plate. The length of the large rocker arm is greater than that of the small rocker arm, and there are two large rocker arms, the top end of each large rocker arm is hinged to the outer suspension plate, the rod body of the large rocker arm is hinged to the mesh plate connecting seat, and there are also two small rocker arms, the top end of each small rocker arm is hinged to the inner suspension plate, and the tail end of the small rocker arm is hinged to the mesh plate connecting seat, the four hinge positions on the outer and inner suspension plates are on the same plane, the four hinge positions on the mesh plate connecting seat are also on the same plane and the relative positions are the same as the relative positions between the four hinge positions on the outer and inner suspension plates, the distance from the hinge position on the rod body of the large rocker arm to the hinge position at the top is the same as the distance from the hinge position on the tail end of the small rocker arm to the hinge position at the top, the synchronous cylinder is installed on the base, and a hinge is installed at the end of the telescopic rod of the synchronous cylinder, and the hinge is hinged to the end of one of the two large rocker arms, and the synchronous cylinders of the two extrusion swing mechanisms are staggered and symmetrical on the fixed base, and the telescopic directions of the telescopic rods are opposite.

3. The air-valve bag squeeze packaging device according to claim 1, characterized in that: The feed nozzle is located between the two steel mesh plates, and the support plate is located in the middle of the lower edge of the movement trajectory of the two steel mesh plates. When the steel mesh plates move toward each other to the extreme position, the distance between the two steel mesh plates is greater than the diameter of the feed nozzle.

4. The air-valve bag squeeze packaging device according to claim 1, characterized in that: The air-permeable valve bag extrusion packaging device is installed in a closed negative pressure box. A negative pressure pipeline interface is provided on the top of the negative pressure box, and a transparent observation window is installed on the front door of the negative pressure box.

5. The air-valve bag squeeze packaging device according to claim 1, characterized in that: A dust hood is installed in the space above the weighing bracket, and the feed nozzle extends into the space below the dust hood. A dust suction pipe is sleeved on the tube body of the feed nozzle, and the dust suction pipe is externally connected to a negative pressure device. The dust generated by feeding is drawn out of the box through the gap between the dust suction pipe and the feed nozzle.

6. The air-valve bag squeeze packaging device according to claim 5, characterized in that: The dust suction pipe is sleeved in an eccentric sleeve manner, and after the sleeve is sleeved, the maximum gap is located directly above the feed nozzle.

7. The air-valve bag squeeze packaging device according to claim 5, characterized in that: The dust collection cover is made of transparent material.

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