A woven bag finished product packing device

Abstract

The application discloses a woven bag finished product packing device, and belongs to the technical field of woven bag production. The device comprises a machine shell, an extrusion plate and a bearing plate are oppositely arranged inside the machine shell, a driving element capable of driving the extrusion plate to move towards the bearing plate is arranged in the machine shell, the extrusion plate is driven to move towards the bearing plate and is adjusted from an inclined posture to a horizontal posture, so that the woven bags stacked on the bearing plate are exhausted and compressed. The woven bag finished product packing device provided by the application has the inclined posture and the horizontal posture, and the extrusion plate is gradually adjusted from the inclined posture to the horizontal posture during the moving process of the extrusion plate. The air in the woven bag is guided to the bag opening by the inclined plate surface of the extrusion plate, so that the woven bag is maximally compressed without damaging the inner film.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of woven bag production, and particularly discloses a woven bag finished product packaging device. BACKGROUND

[0002] Woven bags, also known as snake skin bags, are a kind of plastic bags used for packaging, and the raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene. In order to facilitate the stacking and carrying of woven bags, the woven bags need to be stacked and packaged into a whole after production. The conventional woven bags are made by weaving and have a certain air permeability, so they can be directly pressed downward during packaging, and then bundled after being reduced in size. However, some packaging used in the agricultural and industrial fields needs to have waterproof properties, such as the packaging of seeds, fertilizers or chemical raw materials, so an inner film needs to be added to the conventional woven bags, which are commonly referred to as waterproof woven bags.

[0003] For example, a patent with publication number CN110606231B and publication date of September 21, 2021 discloses a woven bag packaging device, which includes a clamping jaw slider horizontally sliding on a rack, an upper clamping jaw and a lower clamping jaw arranged on the clamping jaw slider, and the upper clamping jaw and the lower clamping jaw can move closer to or farther away from each other. The upper clamping jaw and the lower clamping jaw each include at least two parallel cantilever jaws, and the cantilever jaws are parallel to the sliding direction of the clamping jaw slider. A woven bag support is arranged in the direction of the cantilever jaws, and the height of the woven bag support satisfies the condition that the stacked woven bags can be clamped by the upper clamping jaw and the lower clamping jaw and then moved horizontally to the woven bag support without interfering with the cantilever jaws. A pressing mechanism is arranged above the woven bag support, and the pressing mechanism can press on the woven bags from the position between the adjacent cantilever jaws of the upper clamping jaw. An annular packaging belt is arranged around the moving track of the woven bags above the woven bag support.

[0004] The existing packaging devices, including the above-mentioned patent, have the disadvantage that the stacked woven bags are directly pressed downward during packaging, and the waterproof woven bags can only exhaust air from one side of the bag opening, so that part of the air cannot be exhausted in the inner film and causes the inner film to be damaged due to gas expansion when being pressed downward. SUMMARY

[0005] The present application aims to provide a woven bag finished product packaging device.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions.

[0007] A woven bag finished product packaging device includes a machine shell, an extrusion plate and a bearing plate are arranged vertically opposite inside the machine shell, and a driving member capable of driving the extrusion plate to move towards the bearing plate is arranged in the machine shell. The extrusion plate is driven to move towards the bearing plate and adjust from an inclined posture to a horizontal posture, so as to realize the air exhaust and compression of the stacked woven bags on the bearing plate.

[0008] The packing device, the driving member is at least two groups of linear drivers rotatably installed in the shell, each linear driver is arranged in parallel along the length direction of the extrusion plate, and each linear driver is rotatably connected with the extrusion plate.

[0009] The packing device, a first extrusion block is arranged on one side of the extrusion plate in the shell, a notch is formed in the lower end surface of the first extrusion block along the width direction of the first extrusion block, and the first extrusion block is driven to move downward synchronously with the lowest side of the extrusion plate.

[0010] The packing device, a second extrusion block is rotatably connected to the side of the extrusion plate away from the first extrusion block, and the second extrusion block is driven to move downward synchronously with the first extrusion block.

[0011] The packing device, a vertical movable plate is slidably installed on the side of the first extrusion block away from the extrusion plate, and a vertical slot is formed in the movable plate.

[0012] The packing device, a bundling assembly is further arranged in the shell.

[0013] The packing device, the extrusion plate comprises a first plate and a second plate, a clearance plate is rotatably connected to each of the first plate and the second extrusion block, a torsion spring is arranged on the hinge shaft of each of the first plate and the second extrusion block, the clearance plate is in an inclined state when the torsion spring is in a natural state, a locking piece is arranged on the second plate corresponding to the position of the clearance plate, and the locking piece locks the corresponding clearance plate, so that the first plate, the second plate and the second extrusion block can be an integral whole.

[0014] The packing device, the locking piece comprises a piston block arranged in the second plate, a plug rod is fixedly connected to the piston block, a plug hole matched with the plug rod is arranged on each clearance plate, and a piston cavity for installing the piston block is formed in the second plate.

[0015] The packing device, a baffle is arranged above the extrusion plate in the shell, and a through slot is formed in the baffle corresponding to the positions of the linear drivers and the bundling assembly.

[0016] The packing device, a winding mechanism is arranged on one side of the shell, and the winding mechanism is used for winding a film outside the woven bag after bundling.

[0017] In the above technical solution, the packing device for woven bag products provided by the present application has the inclined posture and the horizontal posture, and gradually adjusts the inclined posture to the horizontal posture during the downward movement of the extrusion plate, guides the air in the woven bag to the bag opening through the inclined plate surface of the extrusion plate, and thus maximally compresses the woven bag without damaging the inner film. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0019] Figure 1 The structural schematic diagram of the packaging device provided by the embodiment of the present application is shown in the figure.

[0020] Figure 2 The sectional view of the casing when the extrusion plate is in a horizontal state is shown in the figure.

[0021] Figure 3 The sectional view of the casing when the extrusion plate is in a state of extruding the woven bag is shown in the figure.

[0022] Figure 4 The sectional view of the casing when the displacement plate is in an unlocked state is shown in the figure.

[0023] Figure 5 The sectional view of the extrusion plate is shown in the figure.

[0024] Figure 6 The structural schematic diagram of the air plug provided by the embodiment of the present application is shown in the figure. Figure 5 The enlarged schematic diagram of position A in the figure is shown in the figure.

[0025] Figure 7 The structural schematic diagram of the air plug provided by the embodiment of the present application is shown in the figure.

[0026] Figure 8 The connection schematic diagram of the movable plate and the first extrusion block provided by the embodiment of the present application is shown in the figure.

[0027] Figure 9 The structural schematic diagram of the displacement plate provided by the embodiment of the present application is shown in the figure.

[0028] Explanation of reference signs:

[0029] 1, casing; 11, first driver; 12, second driver; 13, third driver; 14, fourth driver; 15, baffle; 2, extrusion plate; 21, first plate; 22, second plate; 221, piston block; 222, insertion rod; 223, piston cavity; 224, first spring; 225, small hole; 23, displacement plate; 231, insertion hole; 3, bearing plate; 31, displacement slot; 4, first extrusion block; 41, notch; 42, movable plate; 421, vertical slot; 5, second extrusion block; 6, bundling assembly; 7, air plug; 71, first hole; 72, second hole; 73, annular groove; 74, second spring; 75, pull rope; 8, winding mechanism. DETAILED DESCRIPTION

[0030] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0031] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation and be operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] As shown in Figures 1-9 The woven bag finished product packaging device provided by the embodiment of the present application comprises a casing 1, an extrusion plate 2 and a bearing plate 3 are arranged vertically opposite inside the casing 1, and a driving member capable of driving the extrusion plate 2 to move towards the bearing plate 3 is further arranged in the casing 1, the extrusion plate 2 is driven to move towards the bearing plate 3 and is adjusted from an inclined posture to a horizontal posture, so as to realize the exhaust and compression of the woven bags stacked on the bearing plate 3.

[0033] Specifically, the casing 1 is the main structure of the packaging device, and a horizontal channel is arranged inside the casing 1, the two ends of the channel are respectively the feeding end and the discharging end, Figure 2 In the view, the left side is the discharging end of the channel, and the right side is the feeding end of the channel, the extrusion plate 2 and the bearing plate 3 are arranged inside the casing 1, the extrusion plate 2 and the bearing plate 3 are both rectangular plate members, and the extrusion plate 2 is arranged directly above the bearing plate 3, a recess 31 is formed on the bearing plate 3 along the width direction of the casing 1, Figure 2The horizontal direction is the length direction of the shell 1, the vertical direction is the height direction of the shell 1, and the width direction perpendicular to the horizontal direction and the vertical direction is the width direction of the shell 1, so that the bottom of the woven bag can be exposed and bundled, and the shell 1 is further provided with a driving member for driving the pressing plate 2 to move towards the bearing plate 3, and the driving member is a linear driving mechanism such as a hydraulic cylinder; different from the prior art, in the process of driving the pressing plate 2 to move towards the bearing plate 3, the pressing plate 2 is in an inclined posture such as 5-10 degrees in the initial stage of moving downwards, and the side close to the bottom of the woven bag is the lowest side, and in the process of moving downwards, the side is in contact with the corresponding position (the side close to the bottom of the woven bag) on the woven bag first, and when the pressing plate 2 approaches the end of the stroke, that is, when the woven bag is about to reach the maximum compression amount, the pressing plate 2 is gradually adjusted from the inclined posture to the horizontal posture, and the air in the woven bag is pressed and discharged from the side of the bag bottom to the side of the bag opening, and the compression and air discharge of the woven bag are not sequential in the whole process of moving downwards of the pressing plate 2; obviously, the feeding of the woven bag can be manually or by setting a feeding mechanism in the shell 1, and the feeding mechanism is used to transfer the stacked woven bags from the conveyor to the bearing plate 3, which is a prior art and can be directly applied without further description.

[0034] The packaging device provided by the embodiment of the application has the inclined posture and the horizontal posture, and gradually adjusts the inclined posture to the horizontal posture in the process of moving downwards of the pressing plate 2, the air in the woven bag is guided to the bag opening by the inclined surface of the pressing plate 2, so that the woven bag is compressed to the maximum extent without damaging the inner film.

[0035] Further, the driving member is at least two groups of linear drivers rotatably installed in the shell 1, each linear driver is arranged in parallel along the length direction of the pressing plate 2, and each linear driver is rotatably connected with the pressing plate 2.

[0036] Specifically, since the pressing plate 2 needs to be adjusted from the inclined posture to the horizontal posture in the process of moving downwards, that is, the driving member needs to drive the pressing plate 2 to move downwards and rotate, in the embodiment, the driving member is a linear driver (such as any one of a gas cylinder, an electric push rod and a hydraulic cylinder), as shown in FIG. Figures 2-4 The upper end, that is, the fixed end of each linear driver is rotatably installed on the top of the shell 1, and the lower end, that is, the output end of each linear driver is rotatably connected with the pressing plate 2, as shown in FIG. Figure 2 The linear drivers are two groups, and the two linear drivers are arranged in parallel along the length direction of the pressing plate 2, that is, the horizontal direction as shown in FIG. Figure 2 Specifically, the state of the pressing plate 2 can be adjusted by different extension amounts of the two linear drivers, when the extension amounts of the two linear drivers are consistent, the pressing plate 2 is in the horizontal posture, and when the extension amounts of the two linear drivers are different, the pressing plate 2 is in the inclined posture.

[0037] In another embodiment of the present invention, a first extrusion block 4 is provided inside the housing 1 on one side of the extrusion plate 2. The lower end face of the first extrusion block 4 is provided with a slot 41 along its own width direction. The first extrusion block 4 is driven to move down synchronously with the lowest side of the extrusion plate 2.

[0038] Specifically, in actual production, to improve the waterproof, UV-resistant, and anti-aging properties of woven bags, although a waterproof membrane is installed inside, a waterproof material (polyurethane or acrylic coating) still needs to be coated on the outside of the woven bag. In the above embodiment, in the initial stage of squeezing the woven bag, the extrusion plate 2 squeezes the woven bag in an inclined posture. The squeezing force of the extrusion plate 2 on the woven bag has a horizontal component. When the surface of the woven bag is coated with waterproof material, the friction between the upper and lower layers of woven bags is insufficient to keep them relatively stationary. As a result, during the squeezing process, the stacked cross-section of the woven bags gradually changes from rectangular to rhomboid, making it difficult to tie. In this embodiment, a first extrusion block 4 is also provided inside the housing 1, such as... Figure 2 As shown, the first extrusion block 4 is arranged along the width direction of the housing 1. Inside the housing 1, corresponding to the extrusion plate 2, another linear actuator is also provided. The fixed end of this linear actuator is fixed to the top inside the housing 1. The first extrusion block 4 is fixedly connected to the lower end, i.e., the output end, of this linear actuator. Furthermore, the lower end face of the first extrusion block 4 has a slot 41 along its own width direction, i.e., the length direction of the housing 1. The woven bag is also placed along the length direction of the housing 1. When the extrusion plate 2 is driven to move downwards, the first extrusion block 4 is driven to move downwards synchronously with the lower side of the extrusion plate 2. In the above embodiment, the lower side of the extrusion plate 2 corresponds to the woven bag... At the bottom of the woven bag, the first compression block 4 corresponds to the side where the bag opening is located. This arrangement ensures that when the woven bag is compressed, the opening and bottom sides are compressed by the lower side of the first compression block 4 and the compression plate 2, resulting in greater deformation. The middle part of the woven bag is compressed less, resulting in less deformation. At this time, the stacked woven bags will have an arched state in the middle, which can prevent the woven bags from sliding in the horizontal direction. The slot 41 opened on the first compression block 4 is to prevent the bag opening from being completely blocked by compression, thereby ensuring that the air in the inner film can be smoothly discharged from the side where the bag opening is located.

[0039] Furthermore, a second extrusion block 5 is rotatably connected to the side of the extrusion plate 2 away from the first extrusion block 4, and the second extrusion block 5 is driven to move down synchronously with the first extrusion block 4.

[0040] Specifically, in the above embodiment, since the pressing plate 2 is lowered in an inclined posture at the initial stage of pressing the woven bag, the lower side of the pressing plate 2 is in contact with the woven bag in a linear contact, which causes the side where the bottom of the woven bag is located to be less restricted, and the linear contact is more likely to damage the top woven bag; in the present embodiment, the second pressing block 5 is rotatably installed on the side of the pressing plate 2 away from the first pressing block 4, as shown in Figures 2-4 the left side of the pressing plate 2, and the second pressing block 5 is located on the right side of the pressing plate 2, and another linear driver is also fixedly connected to the top of the housing 1, which has the same installation mode as the linear driver corresponding to the first pressing block 4, and the second pressing block 5 is fixedly connected to the lower end of the linear driver;

[0041] For the convenience of description, the two sets of linear drivers corresponding to the pressing plate 2 are respectively the first driver 11 and the second driver 12, the linear driver corresponding to the first pressing block 4 is the third driver 13, and the linear driver corresponding to the second pressing block 5 is the fourth driver 14, wherein the first driver 11 is installed on the side of the housing 1 close to the third driver 13, and the second driver 12 is installed on the side of the housing 1 close to the fourth driver 14; at the initial stage of pressing the woven bag, the third driver 13 and the fourth driver 14 have the same extension amount to keep the first pressing block 4 and the second pressing block 5 synchronized and always at the same height, and the extension amounts of the first driver 11, the second driver 12 and the third driver 13 gradually increase, so that the first pressing block 4 and the second pressing block 5 can first contact the woven bag, and as the linear drivers are synchronized and extended, when the two ends of the woven bag, i.e. the bag opening side and the bag bottom side, reach the set compression amount, the first driver 11 and the second driver 12 continue to extend, at this time, the extension speed of the first driver 11 is greater than that of the second driver 12, until the pressing plate 2 rotates to a horizontal state with the hinge shaft of the second pressing block 5 as the center axis, and this stage can gradually press the air in the woven bag to the bag opening side.

[0042] The present embodiment increases the second pressing block 5 and sets the fourth driver 14 corresponding thereto, so that it can be synchronized with the first pressing block 4 to move downward, which improves the restriction effect on the bottom side of the woven bag and further avoids the horizontal displacement of the woven bag.

[0043] Further, the first pressing block 4 is slidably installed with a vertical movable plate 42 on the side away from the pressing plate 2, and a vertical groove 421 is formed in the movable plate 42.

[0044] Specifically, in the above embodiment, the pressing plate 2 can be divided into a first stroke and a second stroke, wherein in the first stroke, the pressing plate 2 moves in an inclined state, and in the second stroke, the pressing plate 2 gradually rotates from the inclined state to the horizontal state, although the first pressing block 4 and the second pressing block 5 respectively press and limit the bag opening side and the bag bottom side of the woven bag, in the first stroke of the movement of the pressing plate 2, since the stacked woven bags are gradually pressed and shrunk, the pressing force on the woven bags in the first stroke is in an increasing state, in order to further avoid horizontal displacement of the woven bags, in the embodiment, the side of the first pressing block 4 away from the pressing plate 2 is also the side of the first pressing block 4 that is closest to the second pressing block 5, and the first pressing block 4 is provided with a limiting block 41, the limiting block 41 is connected with the first pressing block 4 in a sliding manner, and the limiting block 41 is provided with a limiting groove 411, the limiting groove 411 is provided on the side of the limiting block 41 away from the first pressing block 4, and the limiting groove 411 is provided in the height direction of the machine shell 1. Figure 2 The left side in the view is provided with a movable plate 42, the movable plate 42 is connected with the first pressing block 4 in a sliding manner, and the movable plate 42 slides in the height direction of the machine shell 1; in this way, when the woven bag is pressed, the lower end of the movable plate 42 can directly contact the bearing plate 3 and block the woven bag from moving horizontally. Figure 2 The left side in the view, with the downward movement of the first pressing block 4, the movable plate 42 slides relative to the first pressing plate 2 due to the lower end being blocked by the bearing plate 3; in order to prevent the exhaust of the woven bag from being blocked, the movable plate 42 is provided with a vertical groove 421, the vertical groove 421 is provided on the side surface of the movable plate 42 corresponding to the pressing plate 2, and the vertical groove 421 is provided in the height direction of the machine shell 1.

[0045] In another embodiment of the present application, the machine shell 1 is further provided with a bundling assembly 6.

[0046] Specifically, in order to further improve the packaging efficiency, the machine shell 1 is further provided with a bundling assembly 6, the bundling assembly 6 is an existing automatic bundling machine, and the bundling assembly 6 is provided with at least two groups, since the pressing plate 2 is a whole plate, in order to facilitate the smooth removal of the pressing plate 2 after bundling, the bundling mechanism is provided with two groups, and the two bundling mechanisms are respectively arranged on the bag opening side and the bag bottom side of the woven bag, that is, Figure 2 The left side of the pressing plate 2 and the right side of the second pressing block 5 in the view, the two groups of bundling assemblies 6 are respectively arranged on the bag opening side and the bag bottom side of the stacked woven bags.

[0047] Further, the pressing plate 2 comprises a first plate 21 and a second plate 22, the first plate 21 and the second pressing block 5 are both rotatably connected with a clearance plate 23, the clearance plate 23 is provided with a torsional spring on the hinge shaft of the first plate 21 and the second pressing block 5, when the torsional spring is in a natural state, the clearance plate 23 is in an inclined state, the second plate 22 is provided with a locking piece corresponding to the position of the clearance plate 23, the locking piece locks the corresponding clearance plate 23 so that the first plate 21, the second plate 22 and the second pressing block 5 can be an integral whole.

[0048] Specifically, in the above embodiment, since the pressing plate 2 is a whole plate, and the pressing plate 2 and the second pressing block 5 are hingedly connected with each other, the two groups of bundling assemblies 6 can only be arranged on both sides of the whole formed by the pressing plate 2 and the second pressing block 5, that is, one group of bundling assemblies 6 is arranged at the gap between the first pressing block 4 and the pressing plate 2, and the other group of bundling assemblies 6 is arranged on the side of the second pressing block 5 away from the pressing plate 2, so that only the bag opening side and the bag bottom side of the woven bag are bundled, and when the woven bag cannot be pressed to the maximum extent, the middle part of the woven bag will be inflated after the woven bag is separated from the pressing plate 2, the first pressing block 4 and the second pressing block 5, and the bundling belt on the bag opening side or the bag bottom side is easy to fall off. The bundling position of the bundling assembly 6 corresponding to the first pressing block 4 is the first bundling position, and the bundling position of the bundling assembly 6 corresponding to the second pressing block 5 is the second bundling position. Only the left side of the second bundling position is pressed by the second pressing block 5, and the bundling belt is more likely to fall off due to the loose bundling. In the embodiment, the pressing plate 2 comprises a first plate 21, a second plate 22 and two groups of displacement plates 23. The first plate 21 is connected with the first driver 11, the second plate 22 is connected with the second driver 12, one displacement plate 23 is rotationally connected to the side of the first plate 21 corresponding to the second plate 22, the other displacement plate 23 is rotationally connected with the second pressing block 5, and torsional springs are arranged at the rotation axes of the two displacement plates 23. When the torsional springs are in a natural state, the displacement plate 23 corresponding to the torsional spring is in an inclined state. Preferably, the inclination angle of the displacement plate 23 is greater than 70 degrees, so as to provide sufficient space for bundling. In addition, a locking piece is arranged on the second plate 22 corresponding to the displacement plate 23. The locking piece is used for locking the corresponding displacement plate 23, so that the plate surfaces of the first plate 21, the second plate 22 and the two displacement plates 23 can be in the same plane, so that the first plate 21, the second plate 22 and the two displacement plates 23 can form a whole plate body, so as to facilitate the control of the inclination angle of the pressing plate 2 to ensure the pressing and exhaust effect. The locking piece can adopt magnetic locking technology, which is a prior art and is directly applied without further description. In addition, in the embodiment, the bundling assembly 6 is provided with three groups, one group of bundling assemblies 6 corresponds to the gap between the first plate 21 and the first pressing block 4, and the other two groups of bundling assemblies 6 are respectively arranged corresponding to one group of displacement plates 23.

[0049] The embodiment divides the extruding plate 2 into a first plate 21, a second plate 22 and two displacement plates 23, and makes the two displacement plates 23 respectively rotate with the first plate 21 and the second extruding block 5. During the extruding process of the woven bag, the displacement plates 23 are limited by the locking member, so that the first plate 21, the second plate 22 and the two displacement plates 23 can constitute an entire plate member. When the extruding is completed and needs to be tied, the locking member releases the locking of the displacement plates 23. The displacement plates 23 are driven by the torsion spring to rotate to an inclined state, and leave enough space for the binding of the binding belt, so that the middle part of the woven bag can also be tied. Since a set of displacement plates 23 is arranged between the second plate 22 and the second extruding plate 2, the two sides of the corresponding tying position of the tying displacement plate 23 are in the extruded state, which can ensure that each tying position can be firmly tied. On the other hand, the displacement plates 23 between the second plate 22 and the second extruding block 5 are the hinge pivots of the extruding plate 2 and the second extruding block 5, so that the extruding plate 2 can be synchronously lowered with the second extruding block 5.

[0050] Further, the locking member includes a piston block 221 arranged in the second plate 22, and a plug rod 222 fixedly connected to the piston block 221. Each displacement plate 23 is provided with a plug hole 231 matched with the plug rod 222. The second plate 22 is provided with a piston cavity 223 for installing the piston block 221.

[0051] Specifically, as shown in FIG. 4, the second plate 22 is provided with a plurality of piston cavities 223, and the piston block 221 is arranged in the piston cavities 223. Figure 5In the above embodiment, the magnetic attraction is used to lock the spacer block. However, during the process of extruding the woven bag, sufficient extrusion force is needed to compress the woven bag as much as possible. The magnetic attraction position is prone to be sheared too much and thus the locking of the spacer plate 23 is released in advance. During the compression of the woven bag, once the spacer plate 23 rotates in advance (normally, the spacer plate 23 is unlocked after the extrusion plate 2 rotates to the horizontal state), the air inside the woven bag cannot be discharged and is concentrated at the position of the spacer plate 23. In the later stage of the compression of the woven bag, the inner film is still damaged due to the air expansion. In the embodiment, the piston cavity 223 is formed in the second plate 22 corresponding to the spacer plate 23. The piston block 221 is slidably installed in the piston cavity 223. When the extrusion plate 2 is in the horizontal state, the piston block 221 slides in the horizontal direction, i.e. the length direction of the casing 1. The insertion rod 222 is fixedly connected to the piston block 221 and penetrates the second plate 22 to correspond to the spacer plate 23. The spacer plate 23 is provided with the insertion hole 231 corresponding to the insertion rod 222. Each piston cavity 223 is connected to the air pump through the pipeline. The air pump fills the air into the piston cavity 223 to make the piston block 221 slide and insert the insertion rod 222 into the corresponding insertion hole 231, so as to lock the spacer plate 23. Obviously, in order to reset the piston block 221, the first spring 224 is arranged in each piston cavity 223 of the second plate 22. The first spring 224 is sleeved outside the corresponding insertion rod 222. When the first spring 224 is in the natural state, the corresponding insertion rod 222 is retracted into the second plate 22. When the insertion rod 222 is inserted into the corresponding insertion hole 231, the first spring 224 is in the compressed state. During the unlocking of the spacer plate 23, the first spring 224 can assist the piston block 221 to slide so that the insertion rod 222 is retracted into the second plate 22 under the driving of the piston block 221.

[0052] Further, the piston cavities 223 in the second plate 22 are connected through the small holes 225. The air plug 7 is slidably installed on the second rod. The lower part of the air plug 7 is provided with the first hole 71. The upper part of the air plug 7 is provided with the second hole 72. The second hole 72 connects the first hole 71 with the outside. The middle part of the air plug 7 is provided with the annular groove 73 along the circumferential direction of the air plug 7. The second spring 74 is sleeved outside the air plug 7 to maintain the relative position of the air plug 7 and the second plate 22. The pull rope 75 is fixedly connected to the air plug 7.

[0053] Specifically, the air plug 7 is slidably installed on the second plate 22. The cross section of the air plug 7 is T-shaped, as shown in Figure 6 and Figure 7As shown, the air plug 7 slides on the second plate 22 along its own axis, the middle part of the air plug 7 is provided with an annular groove 73 along its own circumference, the lower part of the air plug 7 is provided with a first hole 71, and the middle part of the air plug 7 is provided with a second hole 72 which communicates the first hole 71 with the outside, and two piston cavities 223 in the second plate 22 are communicated through a small hole 225; in the sliding stroke of the air plug 7, the air plug 7 has a first position and a second position relative to the second plate 22:

[0054] When in the first position, the annular groove 73 communicates with the first hole 71, and thus, only one set of pipes is arranged, and the pipes are communicated with any piston cavity 223 to realize the driving of the two sets of piston blocks 221;

[0055] When in the second position, the first hole 71 communicates with the small hole 225, and thus, the air in the two piston cavities 223 can be discharged to the outside through the small hole 225, the first hole 71 and the second hole 72, so as to facilitate the sliding of the piston block 221 in the piston cavity 223 where it is located, thereby moving the inserting rod 222 into the second plate 22.

[0056] The air plug 7 is sleeved with a second spring 74, the second spring 74 maintains the relative position of the air plug 7 and the second plate 22, as shown in Figure 6 and Figure 7 As shown, the upper end of the second spring 74 is fixedly connected with the air plug 7, and the lower end of the second spring 74 is connected with the surface of the second plate 22, when the second spring 74 is in a natural state, the air plug 7 remains in the first position; in the specific implementation, one end of the pull rope 75 away from the air plug 7 is fixed, Figures 2-4 In the specific implementation, one end of the pull rope 75 away from the air plug 7 is fixed to the fixed end of the second driver 12, in the process of compressing the woven bag, the pull rope 75 is gradually tightened, and in the process of driving the pressing plate 2 to rotate to the horizontal state, the pull rope 75 pulls the air plug 7, so that the air plug 7 is adjusted from the first position to the second position, thereby passively releasing the locking of the accommodation plate 23.

[0057] Further, the baffle 15 is arranged above the pressing plate 2 in the shell 1, and the baffle 15 is provided with a through groove corresponding to the positions of the linear driver and the bundling assembly 6.

[0058] Specifically, in order to facilitate the adjustment of the accommodation plate 23 from the inclined state to the horizontal state, in the embodiment, as shown in Figures 2-4As shown, the baffle 15 is fixed in the casing 1, the baffle 15 is arranged above the extrusion plate 2, and the through groove is arranged on the baffle 15, so as to facilitate the installation of the first driver 11, the second driver 12, the third driver 13, the fourth driver 14 and the bundling assembly 6; in this way, after the compression of the woven bag is completed, the first driver 11, the second driver 12, the third driver 13 and the fourth driver 14 respectively drive the first plate 21, the second plate 22, the first extrusion block 4 and the second extrusion block 5 to move upwards, since the first plate 21 is hinged with the output end of the first driver 11, and the second plate 22 is hinged with the output end of the second driver 12, the first plate 21 and the second plate 22 will tilt during the upward movement, and when the first plate 21 and the second plate 22 contact the baffle 15, the baffle 15 will gradually rotate to the horizontal state, and the two displacement plates 23 will also gradually rotate to the horizontal state under the blocking of the baffle 15; when the first plate 21, the second plate 22 and the two displacement plates 23 are all rotated to the horizontal state, the air pump inflates the piston cavity 223, so that the piston block 221 slides in the piston cavity 223 and inserts the inserting rod 222 into the insertion hole 231 on the corresponding displacement plate 23, thereby connecting the first plate 21, the second plate 22 and the second extrusion block 5 as a whole.

[0059] In another embodiment provided by the application, a winding mechanism 8 is arranged on one side of the casing 1, and the winding mechanism 8 is used for winding the film on the outside of the woven bag after bundling.

[0060] Specifically, in the actual production process, in order to avoid the woven bag after bundling from being contaminated with soil and being worn during transportation, in the embodiment, the winding mechanism 8 is arranged on one side of the casing 1, and the winding mechanism 8 is an existing automatic film winding machine, which is a prior art and can be directly applied without further description; the winding mechanism 8 is arranged at the outlet end of the passage in the casing 1, that is Figures 2-4 On the left side in the view, the woven bag after bundling is transferred to the turntable of the winding mechanism 8, and the film winding can be performed.

[0061] The above only describes some exemplary embodiments of the application in a descriptive manner, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the application.

Claims

1. A woven bag finished product packing device, comprising a machine shell, an extrusion plate and a bearing plate are oppositely arranged on the inside of the machine shell, and a driving piece capable of driving the extrusion plate to move towards the bearing plate is further arranged in the machine shell, characterized in that, The extrusion plate is driven to move to the bearing plate and is adjusted from the inclined posture to the horizontal posture to realize the exhaust and compression of the woven bag stacked on the bearing plate. A first extrusion block is arranged on one side of the extrusion plate in the casing. The lower end surface of the first extrusion block is provided with a notch along the width direction of the first extrusion block. The first extrusion block is driven to move downward synchronously with the lowest side of the extrusion plate. The side of the extrusion plate away from the first extrusion block is rotatably connected with a second extrusion block. The second extrusion block is driven to move downward synchronously with the first extrusion block. The extrusion plate comprises a first plate and a second plate. The first plate and the second extrusion block are rotatably connected with a displacement plate. The displacement plate and the hinge shaft of the first plate and the second extrusion block are provided with a torsion spring. When the torsion spring is in a natural state, the displacement plate is in an inclined state. The second plate is provided with a locking piece corresponding to the position of the displacement plate. The locking piece locks the corresponding displacement plate so that the first plate, the second plate and the second extrusion block can be an integral whole.

2. A woven bag finished product packing device according to claim 1, characterized in that, The driving member is at least two groups of linear drivers rotatably installed in the casing. Each linear driver is arranged in parallel along the length direction of the extrusion plate, and each linear driver is rotatably connected with the extrusion plate.

3. A woven bag finished product packing device according to claim 1, characterized in that, The side of the first extrusion block away from the extrusion plate is slidably installed with a vertically arranged movable plate. The movable plate is provided with a vertical slot.

4. A woven bag finished product packing device according to claim 1, characterized in that, The casing is further provided with a bundling assembly.

5. A woven bag finished product packing device according to claim 1, characterized in that, The locking piece comprises a piston block arranged in the second plate. The piston block is fixedly connected with a plug rod. Each displacement plate is provided with a plug hole matched with the plug rod. The second plate is provided with a piston cavity for installing the piston block.

6. A woven bag finished product packing device according to claim 1, characterized in that, The casing is provided with a baffle above the extrusion plate. The baffle is provided with a through slot corresponding to the positions of the drivers and the bundling assembly.

7. A woven bag finished product packing device according to claim 1, characterized in that, One side of the casing is provided with a winding mechanism for winding a film outside the woven bag after bundling.

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