Package stacking device for vacuum packaging

Abstract

The utility model relates to the technical field of bag folding machines, and discloses a bag folding device for vacuum packaging, which comprises a working table, a feeding unit arranged on the upper surface of the working table, a pushing unit arranged on the upper surface of the working table, a stacking unit arranged at the bottom of the working table, and a conveying unit arranged on the upper surface of the working table. A pressing assembly is arranged on the upper surface of the workbench. When the surface of the bottom of the contact roller makes contact with the surface of the vacuum packaging bag placed on the bottom plate and continues to press downwards along with the U-shaped plate, the contact roller can roll towards the side away from the center of the square hole, the spiral belt arranged in a spiral shape is matched, so that the rolling contact roller enables the surface of the vacuum packaging bag to generate the push-pull effect from the center to the outer side, and therefore the vacuum packaging bag can be conveniently packaged. And in cooperation with the arrangement of a top roller, the vacuum packaging bags can be flatly stacked in the bag stacking process, and the situation that the vacuum packaging bags are prone to deflection, and the batch stacking machining effect of the vacuum packaging bags is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stacker technology field, concretely for a kind of stacker for vacuum packaging. BACKGROUND

[0002] Empty package is used to package rice, wheat and other food, and can also be used to package other particles, and the vacuum packaging stacker stacks bagged products high (generally stacks 4 to 5 bags) to facilitate transportation and save occupied space.

[0003] According to a double-station vacuum packaging stacker (publication number: CN218172710U) disclosed, in the above application, the vacuum packaging is conveyed to the bag moving station by the bag conveying mechanism, then the bag moving mechanism moves the vacuum packaging to the lifting mechanism, the lifting mechanism is lowered by one height of the vacuum packaging, the previous work is repeated, when the set number of vacuum packaging layers is completed, the stacked packaging is conveyed out by the bag conveying mechanism, which can solve the problems of low utilization rate of heat-shrinkable film machine and insufficient production capacity of single-station vacuum packaging stacker, and overcome the problem that the bottom layer of stacker vacuum packaging appears indentation and cannot be sent out by the bag conveying mechanism, with simple maintenance and convenient operation.

[0004] However, the above-mentioned device lacks a structure for pulling and flattening the surface of the packaging bag during stacking of the vacuum-packaged goods during actual use, and the outer packaging needs to be manually flattened by artificial during stacking of the goods, which not only increases the operation steps and reduces the work efficiency, but also the quality of manual operation is not uniform, and it is difficult to ensure batch stacking of goods. In view of this, we propose a stacker for vacuum packaging. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of stacker for vacuum packaging to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of stacker for vacuum packaging, including workbench, the upper surface of the workbench is provided with feeding unit, the upper surface of the workbench is provided with push unit, the bottom of the workbench is provided with stack unit, the upper surface of the workbench is provided with pressure assembly, the pressure assembly includes:

[0007] support frame, the support frame is fixedly installed on the upper surface of workbench, the upper surface of the support frame is fixedly installed with hydraulic cylinder, the output end of the hydraulic cylinder is fixedly installed with U-shaped plate, the bottom side wall of the U-shaped plate is provided with inclined slot, the inside of the inclined slot is movably installed with top roller;

[0008] The hinge rod is hingedly connected at the top end to the lower surface of the U-shaped plate, the inner wall of the bottom end of the hinge rod is rotatably installed with a contact roller, the side wall of the hinge rod is fixedly connected with an elastic sheet, the arc-shaped outer wall of the contact roller is fixedly installed with a spiral belt, and the arc-shaped outer surface of the spiral belt is provided with an arc-shaped groove.

[0009] Preferably, the feeding unit comprises a driving motor fixedly installed on the side wall of the workbench, and the output end of the driving motor is fixedly installed with a transmission roller, the arc-shaped outer wall of the transmission roller is drivingly connected with a transmission belt, the pushing unit comprises an electric push rod and a push plate fixedly installed on the movable end of the electric push rod, and the push plate is slidingly connected with the upper surface of the workbench, a square hole is formed in the center of the workbench, the stacking unit comprises four groups of hydraulic push rods, and the top of the four groups of hydraulic push rods is fixedly installed with a bottom plate, and the cross section of the bottom plate is larger than that of the square hole; after the vacuum packaging bags are stacked, the vacuum packaging bags are taken out by gradually contracting the four groups of hydraulic push rods, so that the stacking work of the vacuum packaging bags is completed.

[0010] Preferably, the two ends of the top roller are provided with round rods with an outer diameter matched with the inner diameter of the inclined groove, and the inclined groove is arranged in an inclined manner with one end close to the center of the U-shaped plate being low and the other end far from the center of the U-shaped plate being high.

[0011] Preferably, the number of the hinge rods is four, and the four groups of hinge rods are mirror image arranged on the left and right sides of the vertical central axis of the U-shaped plate, and the two ends of the elastic sheet are fixedly connected to the side surfaces close to each other between the two hinge rods in the same group.

[0012] Preferably, the spiral belt is made of a spiral-shaped air bag, and the inner cavity of the spiral-shaped air bag is filled with inert gas, so that the volume of the spiral belt does not change greatly when the external environment temperature changes.

[0013] Preferably, the number of the arc-shaped grooves is several, and the several arc-shaped grooves are evenly distributed on the arc-shaped outer surface of the spiral belt in a spiral line array, so that the arc-shaped grooves do not affect the normal rotation of the contact roller during the rotation of the spiral belt with the contact roller.

[0014] Preferably, the number of the spiral belts is two, and the two groups of spiral belts are symmetrically arranged with the vertical central axis of the contact roller as the symmetry axis.

[0015] Compared with the prior art, the present application provides a stacking device for vacuum packaging, which has the following advantages:

[0016] 1. The device for vacuum packaging, when the bottom surface of the contact roller is in contact with the surface of the vacuum packaging bag placed on the bottom plate and continues to be pressed down, the contact roller rolls towards the side away from the center of the square hole, cooperates with the spiral belt arranged in a spiral shape, so that the rolling contact roller generates a pushing and pulling effect from the center to the outside of the surface of the vacuum packaging bag, and the top roller is arranged, so that the vacuum packaging bag can be stacked flat during the stacking process, avoiding easy skewing, affecting the batch stacking processing effect of the vacuum packaging bag.

[0017] 2. The device for vacuum packaging, by arranging a plurality of arc grooves on the outer surface of the spiral belt, a gap is left between the contact roller and the vacuum packaging bag, avoiding the complete adhesion of the spiral belt and the vacuum packaging bag affecting the normal rotation of the contact roller, and further affecting the stable stacking of the vacuum packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 The figure is a schematic diagram of the working table cross-section structure of the utility model;

[0020] Figure 3 The figure is a schematic diagram of the bottom view structure of the U-shaped plate of the utility model;

[0021] Figure 4 The figure is a schematic diagram of the cross-section structure of the U-shaped plate of the utility model;

[0022] Figure 5 The figure is a schematic diagram of the contact roller structure of the utility model.

[0023] In the figure: 1, working table; 2, feeding unit; 3, pushing unit; 4, stacking unit; 5, pressing assembly; 51, support frame; 52, hydraulic cylinder; 53, U-shaped plate; 54, inclined groove; 55, top roller; 56, hinged rod; 57, contact roller; 58, elastic sheet; 59, spiral belt; 510, arc groove. DETAILED DESCRIPTION

[0024] As Figures 1-5 shown, the utility model provides a technical scheme: a device for vacuum packaging, which comprises a working table 1, the upper surface of the working table 1 is provided with a feeding unit 2, the upper surface of the working table 1 is provided with a pushing unit 3, the bottom of the working table 1 is provided with a stacking unit 4, the upper surface of the working table 1 is provided with a pressing assembly 5, the pressing assembly 5 comprises a support frame 51, a hydraulic cylinder 52, a U-shaped plate 53, an inclined groove 54, a top roller 55, a hinged rod 56, a contact roller 57, an elastic sheet 58, a spiral belt 59 and an arc groove 510.

[0025] In an embodiment of the utility model, support frame 51 fixed mounting is in the upper surface of work table 1, the upper surface fixed mounting of support frame 51 has hydraulic cylinder 52, the output of hydraulic cylinder 52 fixed mounting has U-shaped board 53, the bottom side wall of U-shaped board 53 is equipped with inclined slot 54, the inside movable mounting of inclined slot 54 has top roller 55, the lower surface of U-shaped board 53 is articulated with articulated rod 56, the bottom end inner wall of articulated rod 56 rotatable mounting has contact roller 57, the side wall of articulated rod 56 is fixedly connected with elastic sheet 58, the arc-shaped outer wall of contact roller 57 is fixedly installed with spiral belt 59, and the arc-shaped outer surface of spiral belt 59 is equipped with arc-shaped slot 510.

[0026] Further, the feeding unit 2 includes a drive motor fixedly installed on the side wall of the workbench 1, and the output end of the drive motor is fixedly installed with a transmission roller. The arc-shaped outer wall of the transmission roller is drivingly connected with a transmission belt. The transmission roller is driven to rotate by the drive motor, so that the transmission belt can convey the vacuum packaging bags to be stacked to the center of the workbench 1. In addition, the pushing unit 3 includes an electric push rod and a push plate fixedly installed on the movable end of the electric push rod. The push plate is slidingly connected with the upper surface of the workbench 1. Therefore, during the extension and pushing process of the electric push rod, the push plate can push the vacuum packaging bags on the surface of the transmission belt and transported to the center of the workbench 1 to the side of the center of the support frame 51. At the same time, a square hole is formed in the center of the workbench 1, so that the vacuum packaging bags pushed to the center of the workbench 1 will fall into the inside of the square hole. Specifically, the stacking unit 4 includes four groups of hydraulic push rods and a bottom plate fixedly installed on the top of the four groups of hydraulic push rods. The cross section of the bottom plate is larger than the cross section of the square hole. After the vacuum packaging bags are stacked, the four groups of hydraulic push rods are gradually retracted, so that the staff can easily take out the stacked vacuum packaging bags, and the vacuum packaging and stacking work is completed.

[0027] At the same time, the support frame 51 is arranged directly above the square hole, and the cross section of the U-shaped plate 53 is smaller than the cross section of the square hole, so that the hydraulic cylinder 52 can drive the U-shaped plate 53 to move downward, and finally push the vacuum packaging bags downward to the stacked vacuum packaging bags on the bottom plate. Specifically, the two ends of the top roller 55 are provided with circular rods with outer diameters matching the inner diameters of the inclined slots 54. The inclined slots 54 are arranged in an inclined manner, with one end close to the center of the U-shaped plate 53 being lower and the other end away from the center of the U-shaped plate 53 being higher. During the downward movement of the U-shaped plate 53 and the contact with the top of the vacuum packaging bags, the vacuum packaging bags push and extrude the top roller 55, so that the top roller 55 gradually rolls along the inner wall of the inclined slot 54 and moves away from the center of the U-shaped plate 53. Finally, the top roller 55 is retracted into the bottom cavity of the U-shaped plate 53. The top roller 55 rolling outward from the center of the U-shaped plate 53 rolls and flattens the top surface of the vacuum packaging bags, so that the vacuum packaging bags can maintain a relatively stable stacking effect during stacking, thereby improving the stacking efficiency of the device.

[0028] In addition, the number of articulated rods 56 is provided with four groups, and the four groups of articulated rods 56 are mirror image arranged on the left and right sides of the vertical central axis of the U-shaped plate 53, and the two ends of the elastic sheet 58 are respectively fixedly connected to the side surface close to each other between the two articulated rods 56 in the same group, and the two articulated rods 56 are provided with a notch groove, so as to facilitate the installation of the elastic sheet 58, further, the spiral belt 59 is made of a spiral air bag, and the internal cavity of the spiral air bag is filled with inert gas, so that the volume of the spiral belt 59 does not change greatly when the external environment temperature changes, thereby ensuring the pushing and pulling effect of the contact roller 57 on the bottom surface of the vacuum packaging bag during rolling. Specifically, the number of arc-shaped grooves 510 is provided with several, and the several arc-shaped grooves 510 are uniformly distributed on the arc-shaped outer surface of the spiral belt 59 in a spiral line array, so that during the rotation of the spiral belt 59 with the contact roller 57, the arc-shaped grooves 510 do not affect the normal rotation of the contact roller 57, avoiding the complete fitting of the spiral belt 59 and the vacuum packaging bag affecting the normal rotation of the contact roller 57.

[0029] In the embodiment of the utility model, the number of spiral belts 59 is provided with two groups, and the two groups of spiral belts 59 are symmetrically arranged with the vertical central axis of the contact roller 57 as the symmetry axis, so that after the vacuum packaging bag is pushed to between the contact roller 57 and the top roller 55, the hydraulic cylinder 52 drives the U-shaped plate 53 to move downward, when the bottom surface of the contact roller 57 contacts the surface of the vacuum packaging bag placed on the bottom plate and continues to press down with the U-shaped plate 53, the contact roller 57 will roll towards the side away from the center of the square hole, cooperating with the spiral belt 59 arranged in a spiral shape, so that the rolling contact roller 57 makes the surface of the vacuum packaging bag produce a self-centering outward pushing and pulling effect, cooperating with the arrangement of the top roller 55, so that the vacuum packaging bag can be stacked flat during the stacking of the vacuum packaging bag, avoiding easy skew, affecting the batch stacking processing effect of the vacuum packaging bag.

[0030] In the utility model, when using, the transmission belt can convey the vacuum packaging bag that needs to be stacked to the center of the workbench 1 by driving the transmission roller to rotate, and the extension of the electric push rod is pushed to make the push plate push the vacuum packaging bag on the surface of the transmission belt to the center of the workbench 1 towards the center of the support frame 51 side, until the vacuum packaging bag enters the gap between the contact roller 57 and the top roller 55, at this time, the hydraulic cylinder 52 is started to push the U-shaped plate 53 to move downwards, when the bottom surface of the contact roller 57 contacts the surface of the vacuum packaging bag placed on the bottom plate and continues to press down with the U-shaped plate 53, the contact roller 57 will roll towards the center of the square hole, the spiral belt 59 is arranged in a spiral shape to make the rolling contact roller 57 produce the push-pull effect of the surface of the vacuum packaging bag from the center to the outside, and the top roller 55 is arranged to make the vacuum packaging bag be stacked flat during the process of stacking the vacuum packaging bag, so that the vacuum packaging bag is not easily skewed, and the batch stacking processing effect of the vacuum packaging bag is affected.

[0031] The above has made detailed description to the utility model, but on the basis of the utility model, some modifications or improvements can be made, which is obvious to the general skilled in the technical field. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A stacking device for vacuum packaging, comprising a workbench (1), the upper surface of the workbench (1) is provided with a feeding unit (2), the upper surface of the workbench (1) is provided with a pushing unit (3), and the bottom of the workbench (1) is provided with a stacking unit (4), characterized in that: The upper surface of the workbench (1) is provided with a pressing assembly (5), the pressing assembly (5) comprises: Support frame (51), the support frame (51) is fixedly installed on the upper surface of the workbench (1), the upper surface of the support frame (51) is fixedly installed with hydraulic cylinder (52), the output end of the hydraulic cylinder (52) is fixedly installed with U-shaped plate (53), the bottom side wall of the U-shaped plate (53) is provided with inclined slot (54), the inside of the inclined slot (54) is movably installed with top roller (55); Hinged rod (56), the top end of the hinged rod (56) is hinged to the lower surface of the U-shaped plate (53), the bottom end inner wall of the hinged rod (56) is rotatably installed with contact roller (57), the side wall of the hinged rod (56) is fixedly connected with elastic sheet (58), the arc-shaped outer wall of the contact roller (57) is fixedly installed with spiral belt (59), the arc-shaped outer surface of the spiral belt (59) is provided with arc-shaped groove (510).

2. A lapping device for vacuum packaging according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with a pressing assembly (5), the pressing assembly (5) comprises:

3. A lapping device for vacuum packaging according to claim 1, characterized in that: The two ends of the top roller (55) are provided with round rods with an outer diameter matching the inner diameter of the inclined slot (54), and the inclined slot (54) is arranged in an inclined manner with one end close to the center of the U-shaped plate (53) being low and the other end away from the center of the U-shaped plate (53) being high.

4. A lapping device for vacuum packaging according to claim 1, characterized in that: The number of hinged rods (56) is four, and the four hinged rods (56) are mirror image arranged on the left and right sides of the vertical central axis of the U-shaped plate (53), and the two ends of the elastic sheet (58) are fixedly connected to the side surface of the two hinged rods (56) in the same group.

5. A lapping device for vacuum packaging according to claim 1, characterized in that: The spiral belt (59) is made of spiral-shaped air bag, and the inside of the spiral-shaped air bag is filled with inert gas.

6. A lapping device for vacuum packaging according to claim 1, characterized in that: The number of arc-shaped grooves (510) is several, and the several arc-shaped grooves (510) are evenly distributed on the arc-shaped outer surface of the spiral belt (59) in spiral line array.

7. A lapping device for vacuum packaging according to claim 1, characterized in that: The number of spiral belts (59) is two, and the two spiral belts (59) are symmetrically arranged with the vertical central axis of the contact roller (57) as the axis of symmetry.

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