Screen packing machine based on automatic material frame filling, screen and spacer staggered stacking

Abstract

The present invention discloses a screen packing machine based on automatic filling of a material frame and staggered stacking of screens and spacers. The machine comprises a material frame loading unit, which comprises a material preparation transmission line and a correction mechanism; a screen loading unit, which comprises a screen manipulator; a spacer loading unit, which comprises a material storage mechanism and a material taking mechanism; and a packing unit, which comprises a packing station, a packing manipulator, and a discharge transmission line. On the one hand, the present invention is based on a transmission circulation path formed by a material frame carrier to achieve accurate movement of the material frame to each material preparation station after correction at the starting position. At the same time, combined with the layout of the material preparation transmission line, the packing station, and the discharge transmission line, the loading accuracy of the material frame is effectively improved, ensuring accurate packing of screens and spacers, and the structure is compact, effectively saving space; on the other hand, when the spacers are lifted up, the side edges are used as a reference to drive the middle part to arch upward, ensuring that adjacent spacers are layered up and down, and achieving accurate and rapid adsorption and transfer of the spacers piece by piece from the arched part.

Description

Technical Field

[0001] The invention belongs to the field of box packing equipment, and in particular relates to a screen box packing machine based on automatic material frame filling and staggered stacking of screens and spacers. Background Art

[0002] Currently, during the packaging process of screens, it is usually necessary to place spacer paper between each two adjacent screens to provide protection.

[0003] Existing screen packaging equipment mainly includes a screen loading unit, a spacer paper loading unit, a material frame loading unit, and a packaging unit. That is, the packaging and unloading operations are carried out by loading the screen, spacer paper, and material frame one by one through the packaging unit. Among them, the existing spacer paper loading unit, such as the pre-separation mechanism disclosed in Chinese patent publication number CN222729052U, uses a conductive brush and an air blowing device. The bristles of the conductive brush are made of conductive fiber. During the material loading and unloading process, the bristles of the conductive brush contact the side of the kraft paper. The side of the air blowing device facing the kraft paper is a serrated structure with a plurality of air outlet holes. When the second sheet material feeding chamber lifts the stacked kraft paper, or when the material picking mechanism picks up the kraft paper and moves upward, the side of the kraft paper contacts the conductive brush, thereby eliminating the static electricity on the kraft paper. At the same time, air is blown through the air outlet holes on the serrated structure of the air blowing device to separate the adjacent kraft papers into layers, which is convenient for pre-separation of the kraft papers and for the material taking mechanism to pick up the kraft papers.

[0004] For example, the Chinese patent with publication number CN208165365U discloses an automatic product packing device for a production line. The empty box conveying mechanism involved includes an empty box forming device, an empty box conveyor belt, and an empty box pushing device. The empty box conveyor belt is adjacent to the front end of the carton conveyor belt, the empty box conveyor belt is flush with the carton conveyor belt, the empty box conveyor belt and the carton conveyor belt are arranged vertically, and both the carton conveyor belt and the empty box conveyor belt are driven by rollers.

[0005] However, in the actual production process, the following technical defects are prone to occur:

[0006] 1. In traditional empty box loading mechanisms, empty boxes are transported by conveyor belts, which cannot be straightened. In addition, the quality of empty boxes is low during transportation. The vibration generated by each start and stop of the conveyor belt or during transportation can easily cause the position of the empty boxes to shift, affecting the position accuracy of the loading and resulting in inaccurate packaging positions. In addition, the existing empty box and full box conveyor belts are connected at the ends, which takes up a lot of space.

[0007] 2. When lifting and loading horizontally stacked sheets, adjacent sheets are easily attracted to each other and enter the same serrated groove due to factors such as the lifting rate or electrostatic adsorption. In addition, the side walls of the serrated groove hinder the side edges of multiple sheets, further increasing the difficulty of separating the sheets and resulting in a low delamination rate. In addition, as the sheets continue to be lifted in the serrated structure, only the side edges of the sheets can be delaminated, while the middle area of the sheets is still prone to adhesion, which can easily lead to failure in retrieving the material from the top layer or bring out the lower layer of sheets. Summary of the Invention

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an improved screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers.

[0009] To achieve the above object, the present invention adopts the following scheme:

[0010] A screen packing machine based on automatic material frame filling, screen and spacer staggered stacking, comprising

[0011] The material frame loading unit includes a material preparation transmission line and a return mechanism;

[0012] A screen feeding unit, which includes a screen robot;

[0013] The spacer feeding unit includes a material storage mechanism and a material taking mechanism;

[0014] The packing unit includes a packing station, a packing robot, and a discharging transmission line.

[0015] The material preparation transmission line includes multiple material preparation stations arranged in sequence along the material frame material preparation transmission direction, a material frame carrier that crosses the multiple material preparation stations, and a material preparation power device. The correction mechanism is arranged at the starting material preparation station and corrects the material frames passing through the starting position respectively. The material preparation power device drives the material frame carrier to lift, move forward, descend, and retreat in sequence to form a transmission cycle path. Each corrected material frame moves horizontally to multiple material preparation stations while the material frame carrier moves forward and descends.

[0016] The packing station is aligned with the last material preparation station. The packing robot transfers the material frame between the packing station and the last material preparation station. The outfeed transmission line is connected to the packing station and is parallel to the material preparation transmission line.

[0017] The material picking mechanism includes a material picking robot and a layering device, wherein the partitions are stacked on the storage mechanism. The layering device is located at the feeding end of the storage mechanism, and as the partitions are pushed upward, the middle part is driven to arch upward with the side of the partition as the reference so that adjacent partitions are layered in the upper and lower directions. The material picking robot absorbs and transfers the partitions from the arched part.

[0018] According to a specific embodiment and preferred aspect of the present invention, the transport direction of the material preparation transmission line is opposite to that of the material discharge transmission line; and / or the screen loading unit and the spacer loading unit are respectively arranged in front of and to the side of the case packing station. This facilitates the feeding and unloading of empty and full material frames from the same port of the case packer, facilitating the transfer of material frames.

[0019] Preferably, each material preparation station includes support frames located on both sides and forming a support plane from the top surface, and the material frame carrier is located between the support frames on both sides and lifts or places the material frame on the support plane during lifting.

[0020] According to another specific embodiment and preferred aspect of the present invention, the correction mechanism takes the rear end face of the material frame at the starting position as a positioning reference and drives the material frame to correct in the left and right directions. Here, it is convenient for the material frame to realize rapid positioning in a single correction.

[0021] Preferably, the correction mechanism includes a positioning substrate located behind the material frame, correction plates located on the left and right sides of the material frame, and a correction power device, wherein the material preparation power device drives the material frame carrier to lift, retreat, and lower in sequence to drive the material frame to fit the positioning substrate from the rear end surface, and the correction power device drives the correction plates on both sides to move back and forth left and right to drive the material frame to correct left and right.

[0022] Preferably, the starting material preparation station is equipped with two slide rails extending left and right, with the two correcting plates slidingly connected to the slide rails. Alternatively, a contact sensor is positioned above the positioning baseplate, and the material frame engages the positioning baseplate from its rear end, synchronously triggering the contact sensor. The sliding connection between the starting material preparation station and the two correcting plates improves the movement precision of the correcting plates and the accuracy of the correction. Furthermore, the contact sensor precisely controls the retreat distance of the material frame to avoid positional deviations caused by impact and rebound.

[0023] Preferably, the top surface of the material frame carrier is provided with an anti-skid plate, and when lifted, the material frame is placed on the anti-skid plate; and / or, the material preparation power device includes a transverse frame, a plurality of guide rods vertically arranged on the transverse frame and connected to the material frame carrier from the top, a transverse power member that drives the transverse frame to reciprocate along the material preparation transmission direction, and a lifting power member that drives the material frame carrier to move up and down.

[0024] According to another specific embodiment and preferred aspect of the present invention, the discharge transmission line includes a plurality of discharge stations arranged sequentially along the discharge transmission direction, a discharge platform traversing the plurality of discharge stations, and a discharge power unit, wherein the structures of the discharge stations, the discharge platform, and the discharge power unit are identical to those of the material preparation station, the material frame platform, and the material preparation power unit; and / or, the boxing unit further includes a boxing return component arranged at the boxing station, and the boxing return component has the same structure as the return mechanism. This facilitates installation and implementation.

[0025] According to another specific implementation and preferred aspect of the present invention, the storage mechanism includes a storage platform, an auxiliary guide rod, and a lifting component, wherein there are multiple auxiliary guide rods; the layering device includes a layering module and a brush corresponding to the upper end of each auxiliary guide rod, wherein each layering module is formed with a plurality of layering grooves in the feeding direction of the storage platform, the inner side wall of each auxiliary guide rod, each layering groove and the top surface of the storage platform constitute a feeding area, the layering groove of each layering module is located above the inner side of the inner side wall of the corresponding auxiliary guide rod, and the layering groove is aligned with the auxiliary guide rod. A pre-layered material trough is formed between the inner walls of the guide rods; the brush is fixed on any one or two auxiliary guide rods and forms a layered coordination with the pre-layered material trough, the brush extends upward into the material area and the inner end portion is located above the inner side of the pre-layered material trough, and when the lifting component is lifted, the partition contacts the pre-layered material trough and the brush from the side, and arches upward from the middle to form a pre-layered material trough, and as the storage platform continues to be lifted, it rises from the pre-layered material trough upward so that the partition keeps the middle arched and the sides layered and gradually rises to the layered material trough formed by the layered tooth grooves of each layer. It should be noted that the present application is based on the side edges of the partitions contacting the pre-layered material trough and the brush. As the jacking is lifted, the partitions are relatively arched in the middle with the side edges as the reference, thereby achieving pre-separation from adjacent partitions. During the lifting, the partitions are forced to touch each other from the middle to achieve step-by-step lifting, and when entering the corresponding layered material trough, the lifting is stopped (if necessary, it can be slightly lowered), then the middle part of the partition loses force and separates from each other, and the partitions automatically achieve stratification while keeping the middle part arched.

[0026] Preferably, the top of the inner sidewall of each auxiliary guide rod forms a second wall extending in a direction intersecting the corresponding first wall, wherein a pre-slicing trough opening toward the loading area is formed between the first and second walls. The pre-slicing trough formed between the first and second walls facilitates the space required for the lateral edges of the separator to deform downward during the impact.

[0027] Preferably, the first wall is an arc-shaped surface that arches downward, thereby achieving the goal of pressing down on the side of the separator while reducing friction, thereby reducing the difficulty of the side of the separator rising through the first wall and reducing the probability of material jamming.

[0028] Preferably, one end of the first wall is tangent to the top surface of the auxiliary guide rod, and the other end is aligned vertically with the bottom of each layer of tooth grooves. This ensures that the side edges of each layer of separators are aligned during the step-by-step lifting process, thereby achieving a consistent height at the center of each layer of separators, facilitating accurate material removal by the robot.

[0029] Preferably, the brush is horizontally extended into the upper material area. Here, as the spacer is continuously lifted, the brush can be accurately inserted between each adjacent spacer on both sides in the horizontal direction.

[0030] According to another specific embodiment and preferred aspect of the present invention, in the orthographic projection along the length of the stratified tooth groove, the lower surface of the brush is connected to the upper wall of the pre-stratified material groove, and the upper surface is connected to the groove bottom of the lowest stratified tooth groove. During pre-stratification, the spacers are attached to the upper wall of the pre-stratified material groove and the lower surface of the brush from the side. As the corresponding spacer continues to rise upward, the brush folds upward to avoid it, then returns to its original position and is inserted between it and the adjacent spacer. Here, each layer of spacers maintains the same change trend in the sides and middle parts from the pre-stratified material groove to the lowest stratified tooth groove, ensuring the stability and reliability of pre-stratification.

[0031] Preferably, the multiple auxiliary guide rods are divided into at least three feed rod groups, one of which is a reference feed rod group, and the remaining feed rod groups are movable feed rod groups. Each movable feed rod group is relatively retracted or expanded relative to the reference feed rod group to match the size of the spacer. This allows for flexible feeding of spacers of various specifications and styles, while improving the accuracy of spacer positioning.

[0032] Specifically, there are three feed rod groups; the material storage mechanism also includes a reference grid, with rectangular spacers abutting the reference feed rod group and the reference grid from two adjacent sides, and abutting the two movable feed rod groups from two other adjacent sides; a brush is fixedly connected to the reference feed rod group. Based on the rectangular contour of the spacer, with two adjacent sides as the reference, the other two adjacent sides are abutted or released to achieve fast and accurate positioning, improving feeding efficiency.

[0033] Preferably, the material storage platform is formed with an avoidance groove and two guide groove groups extending along the length of adjacent side edges of the separator, wherein the reference feed rod group passes upward from the material storage platform through the avoidance groove, and the two movable feed rod groups pass upward from the material storage platform through the corresponding guide groove groups and reciprocate along the corresponding guide groove groups; and / or, the layering device further includes an auxiliary brush disposed above the reference grid, wherein the auxiliary brush extends into the upper feeding area and the inner end is located above the outer side of the adjacent layer module. Here, after taking material from the top layer tooth groove, the auxiliary brush again forms a contact with the side edge of the taken separator, thereby further reducing the probability of separator adhesion.

[0034] The demultiplexer also includes an airflow assembly, which generates airflow within each layer of the demultiplexing trough to separate adjacent septa and eliminate static electricity. This assembly includes two sets of airflow nozzles located on opposite sides of the loading area, with the airflows from these two sets converging in the center of each layer of the demultiplexing trough. This ensures that the septa are separated from each other and, thanks to the convergence of the airflow, ensures that multiple septa rise synchronously and step by step during the lifting process, reducing the possibility of material jamming.

[0035] Due to the application of the above-mentioned technology and equipment solutions, the present invention has the following advantages compared with the prior art:

[0036] The existing technology uses a conveyor belt to transport empty boxes, which cannot be straightened, and the quality of the empty boxes is low during transportation. The vibration generated each time the conveyor belt starts, stops or during transportation can easily cause the position of the empty boxes to shift, affecting the position accuracy of the loading and causing the problem of inaccurate packing position. In addition, the existing empty box and full box conveyor belts are connected from end to end, which takes up a large space. At the same time, when the horizontally stacked sheets are lifted and loaded, due to factors such as the lifting rate or electrostatic adsorption, adjacent sheets are easily attracted to each other and enter the same serrated groove. Moreover, the side walls of the serrated groove are hindered by the resistance of the side edges of multiple sheets, which further increases the difficulty of separating the sheets, resulting in a low stratification rate. In addition, as the sheets continue to be lifted in the serrated structure, only the stratification of the side edges of the sheets can be maintained, and the middle area of the sheets is still prone to adhesion, which can easily lead to failure in taking the materials from the top layer or bringing out the lower layer of sheets. The present application provides a method based on automatic filling of the material frame, staggered stacking of screens and spacers. The structure of the screen cartoning machine is designed as a whole, which cleverly solves the shortcomings and defects of the existing technology. After adopting the screen cartoning machine, the empty material frames are first placed one by one on the material preparation station at the starting position and corrected by the correction mechanism, and then the material frame carrier is driven by the material preparation power device to lift, move forward, descend, and retreat in sequence to form a transmission cycle path, so that the corrected material frames are moved horizontally to multiple material preparation stations one by one during the forward and downward movement of the material frame carrier; the empty material frames are transferred from the last material preparation station to the cartoning station by the cartoning robot; then the screen robot and the material picking mechanism take out the screens and spacers one by one and load them into the material frame at the cartoning station in an offset and stacked manner, wherein the spacers are stacked on the storage mechanism when taking the materials, driving the spacers to push up and using the side pieces of the spacers as a reference to drive the middle of the spacers to arch upward so that the adjacent spacers are layered in the upper and lower directions, and the material picking robot absorbs and transfers the spacers from the arched part; finally, the packed material frames are output along the discharge transmission line. Therefore, compared with the existing technology, the present invention is based on the transmission circulation path formed by the material frame carrier, so that the material frame can be accurately moved to each preparation station after it is aligned at the starting position. At the same time, combined with the layout of the preparation transmission line, the packing station and the discharge transmission line, it effectively improves the loading accuracy of the material frame, ensures the accurate packing of the screen and the spacer, and has a compact structure, effectively saving space; on the other hand, when the spacer is lifted up, the side is used as the reference to drive the middle part to arch upward, ensuring that adjacent spacers are layered up and down, and realizing the accurate and rapid adsorption and transfer of the spacers from the arched part. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the three-dimensional structure of the screen packaging machine of this embodiment;

[0038] Figure 2 for Figure 1 A magnified schematic diagram of the local structure of the middle packing unit;

[0039] Figure 3 for Figure 1A magnified schematic diagram of the partial structure of the middle material preparation power unit;

[0040] Figure 4 for Figure 2 An enlarged schematic diagram of the structure of the central correction mechanism;

[0041] Figure 5 for Figure 1 A magnified schematic diagram of the structure of the medium-sized box-packing robot;

[0042] Figure 6 for Figure 1 Schematic diagram of the three-dimensional structure of the middle septum feeding unit;

[0043] Figure 7 for Figure 6 The main schematic diagram of

[0044] Figure 8 for Figure 7 Schematic top view of

[0045] Figure 9 for Figure 7 A magnified schematic diagram of the local structure;

[0046] Among them: ①, material frame loading unit; 1, material preparation transmission line; 10, material preparation station; 100, support frame; 11, material frame carrier; 110, anti-slip plate; 12, material preparation power unit; 120, transverse frame; 121, guide rod; 122, transverse force member; 123, lifting power member; 2, return mechanism; 200, contact sensor; 20, positioning substrate; 21, return plate; k, slider; 22, return power unit;

[0047] ②, Packing unit; 3, Packing station; 4, Packing robot; 40, Clamping arm; 41, Transfer actuator; 5, Outfeed transmission line; 50, Outfeed station; 51, Outfeed platform; 52, Outfeed actuator; 6, Packing and straightening components;

[0048] ③. Screen loading unit; 7. Loading bracket;

[0049] ④, spacer loading unit; 8, material storage mechanism; 80, material storage platform; c0, avoidance groove; c1, guide groove group; 81, auxiliary guide rod; d, linear motion drive mechanism; 82, lifting component; 83, reference fence; 9, material retrieving mechanism; 90, material retrieving manipulator; 91, layering device; 910, layering module; c2, layering tooth groove; c3, pre-layering trough; m1, first wall; m2, second wall; q, loading area; 911, brush; 912, auxiliary brush; 913, airflow component; z, airflow nozzle;

[0050] K. Material frame. DETAILED DESCRIPTION

[0051] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0054] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0055] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature. It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0056] like Figures 1 to 9 As shown, the screen packaging machine of this embodiment includes a material frame loading unit ①, a packaging unit ②, a screen loading unit ③, and a spacer loading unit ④.

[0057] Specifically, the material frame loading unit ① includes a material preparation transmission line 1 and a correction mechanism 2; the packing unit ② includes a packing station 3, a packing robot 4, a material discharge transmission line 5, and a packing correction component 6; the screen loading unit ③ includes a loading bracket 7 and a screen robot (not shown in the figure, but it is not difficult to imagine); the spacer loading unit ④ includes a storage mechanism 8 and a material picking mechanism 9.

[0058] In this example, the material preparation transmission line 1 includes a plurality of material preparation stations 10 arranged in sequence along the material frame material preparation transmission direction, a material frame carrier 11 crossing the plurality of material preparation stations 10, and a material preparation power device 12. The correction mechanism 2 is arranged at the material preparation station 10 where the starting point is located, and corrects the material frames K passing through the starting position respectively. The material preparation power device 12 drives the material frame carrier 11 to lift, move forward, descend, and retreat in sequence to form a transmission cycle path. Each corrected material frame K moves horizontally to the plurality of material preparation stations 10 while the material frame carrier 11 moves forward and descends.

[0059] In some specific embodiments, each material preparation station 10 includes support frames 100 located on both sides and forming a support plane from the top surface. The material frame carrier 11 is located between the two support frames 100 and lifts or places the material frame K on the support plane during lifting. Adjacent support frames 100 are fixedly connected to each other to enhance support stability. The top surface of the material frame carrier 11 is provided with an anti-slip plate 110 (such as a silicone backing plate). When lifting, the material frame K is placed on the anti-slip plate 110. The material preparation power unit 12 includes a transverse frame 120, a plurality of guide rods 121 vertically arranged on the transverse frame 120 and connected to the material frame carrier 11 from the top, a transverse force member 122 that drives the transverse frame 120 to reciprocate along the material preparation transmission direction, and a lifting power member 123 that drives the material frame carrier 11 to move up and down.

[0060] In this example, the correcting mechanism 2 is based on the rear end face of the frame K at the starting position as the positioning reference, and drives the frame K to correct in the left and right directions. Here, it is convenient for the frame to realize rapid positioning in a single correction.

[0061] In some specific embodiments, the correction mechanism 2 includes a positioning substrate 20 located behind the material frame K, correction plates 21 located on the left and right sides of the material frame K, and a correction power device 22, wherein the material preparation power device 12 drives the material frame carrier 11 to lift, retreat, and descend in sequence to drive the material frame K to fit the positioning substrate 20 from the rear end surface, and the correction power device 22 adopts a rodless cylinder to drive the correction plates 21 on both sides to reciprocate left and right to drive the material frame K to correct left and right.

[0062] For ease of implementation, the starting material preparation station 10 is equipped with two slide rails extending left and right. The two aligning plates 21 slide along the rails from the bottom via sliders k. A contact sensor 200 is also located above the positioning base plate 20. The material frame K engages the positioning base plate 20 from its rear end, synchronously triggering the contact sensor 200. The sliding connection between the starting material preparation station and the two aligning plates improves the movement precision of the aligning plates and the accuracy of alignment. Furthermore, the contact sensor precisely controls the retreat distance of the material frame to avoid positional deviations caused by impact and rebound.

[0063] In this example, packing station 3 is aligned with the final stock preparation station 10. Packing robot 4 transfers material frames K between packing station 3 and final stock preparation station 10. Outfeed conveyor 5 connects to packing station 3 and runs parallel to stock preparation line 1. The direction of stock preparation line 1 is opposite to the direction of stock discharge line 5. Screen loading unit ③ and spacer loading unit ④ are located in front of and to one side of packing station 3, respectively. This facilitates the feeding and unloading of empty and full material frames from the same port of the packer, facilitating the transfer of material frames.

[0064] In some specific embodiments, the packing robot 4 includes a clamping arm 40 capable of clamping or releasing the material frame K from both sides, and a transfer power unit 41 that drives the clamping arm 40 to move horizontally and vertically to connect with the final material preparation station 10 and the packing station 3, respectively. There are two outfeed transmission lines 5 arranged side by side, each of which includes multiple outfeed stations 50 arranged in sequence along the outfeed transmission direction, an outfeed platform 51 that traverses the multiple outfeed stations 50, and an outfeed power unit 52. The structures of the outfeed stations 50, the outfeed platform 51, and the outfeed power unit 52 are identical to those of the material preparation station 10, the material frame platform 11, and the material preparation power unit 12. The packing return unit 6 is located at the packing station 3 and has the same structure as the return mechanism 2. This facilitates installation and implementation.

[0065] In this example, the storage mechanism 8 includes a storage platform 80, an auxiliary guide rod 81, and a lifting component 82; the material picking mechanism 9 includes a material picking robot 90 and a layerer 91, wherein the partitions are stacked on the storage mechanism 8, and the layerer 91 is located at the feeding end of the storage mechanism 8, and as the partitions are pushed upward, the middle part is driven to arch upward with the side of the partition as the reference so that adjacent partitions are layered in the upper and lower directions, and the material picking robot 90 absorbs and transfers the partitions from the arched part.

[0066] In some specific embodiments, the spacers of this embodiment are rectangular spacers and are stacked horizontally on the material storage platform 80; there are multiple auxiliary guide rods 81, and the multiple auxiliary guide rods 81 are divided into three material rod groups, and one of the three material rod groups is a reference material rod group corresponding to one side of the spacer, and the other two material rod groups are movable material rod groups corresponding to the adjacent two sides of the spacer. The two movable material rod groups are relatively retracted or opened with respect to the reference material rod group to match the size of the spacer. In other words, the reference material rod group includes two auxiliary guide rods 81 spaced apart along the short side of one side of the spacer, one of the two movable material rod groups includes three auxiliary guide rods 81 spaced apart along the long side of one side of the spacer, and the other includes two auxiliary guide rods 81 spaced apart along the short side of the other side of the spacer. The lifting component 82 uses a conventional lifting power part, such as a screw drive.

[0067] The material storage platform 80 is also formed with an escape groove c0 and two guide groove groups c1 extending along the length of adjacent sides of the spacer. The reference feed rod group extends upward from the material storage platform 80 through the escape groove c0, while the two movable feed rod groups extend upward from the material storage platform through their corresponding guide groove groups c1 and reciprocate along their respective guide groove groups c1. The bottom of each movable feed rod group is connected to a linear motion drive mechanism d, which utilizes conventional technology and is not described in detail here.

[0068] To further facilitate implementation, lifting component 82 is driven by a screw drive. The material storage mechanism 8 also includes a reference rail 83 corresponding to the other long side of the spacer. The rectangular spacer abuts the reference material rod group and reference rail 83 from the adjacent short and long sides, and abuts the two movable material rod groups from the other adjacent short and long sides. Based on the rectangular contour of the spacer, with two adjacent sides as the reference, the other two adjacent sides are abutted or released to achieve fast and accurate positioning, improving loading efficiency.

[0069] In this example, the material-picking robot 90 uses a suction cup to adsorb and transfer the spacer during the lateral movement; the layerer 91 includes a layering module 910 and a brush 911 correspondingly arranged at the upper end of each auxiliary guide rod 81, wherein each layering module 910 is formed with a plurality of layering grooves c2 in the loading direction of the storage platform, and the inner side walls of each auxiliary guide rod 81, each layering groove c2 and the top surface of the storage platform 80 constitute the loading area, and the layering groove c2 of each layering module 910 is located above the inner side of the inner side wall of the corresponding auxiliary guide rod 81, and a pre-layering trough c3 is formed between the layering groove c2 and the inner side wall of the auxiliary guide rod 81.

[0070] In some specific embodiments, each layering module 910 forms a first wall m1 at its bottom, and the inner sidewall of each auxiliary guide rod 81 forms a second wall m2 at its top, extending in a direction intersecting the corresponding first wall m1. A pre-layering trough c3, opening toward the loading area q, is formed between the first and second walls m1. The pre-layering trough formed between the first and second walls facilitates the space required for the spacer's side edges to deform downward during the impact.

[0071] At the same time, the first wall surface m1 is an arc-shaped surface that arches downward, thereby achieving the goal of resisting and pressing down the side of the separator while reducing friction, thereby reducing the difficulty of the side of the separator rising through the first wall surface and reducing the probability of material jamming.

[0072] Furthermore, one end of the first wall m1 is tangent to the top surface of the auxiliary guide rod 81, and the other end is aligned vertically with the bottom of each layer of the tooth groove c2. Therefore, during the step-by-step lifting process of the spacers, the side positions of each layer of spacers are ensured to be consistent, thereby achieving a consistent height of the central arch of each layer of spacers, facilitating accurate material removal by the robot.

[0073] In this example, the brush 911 is fixed on any one or two auxiliary guide rods 81 and forms a layered coordination with the pre-layered material trough c3. The brush 911 extends into the upper material area and the inner end is located above the inner side of the pre-layered material trough c3. During the lifting of the lifting component 82, the partition contacts the pre-layered material trough c3 and the brush 911 from the side, and arches upward from the middle to form a pre-layered material. As the storage platform 80 continues to be lifted, it rises from the pre-layered material trough upward so that the partition remains arched in the middle, the sides are layered, and it rises step by step to the layered material trough formed by each layer of the layered tooth grooves c2. It should be noted that the present application is based on the side edges of the partitions contacting the pre-layered material trough and the brush. As the jacking is lifted, the partitions are relatively arched in the middle with the side edges as the reference, thereby achieving pre-separation from adjacent partitions. During the lifting, the partitions are forced to touch each other from the middle to achieve step-by-step lifting, and when entering the corresponding layered material trough, the lifting is stopped (if necessary, it can be slightly lowered), then the middle part of the partition loses force and separates from each other, and the partitions automatically achieve stratification while keeping the middle part arched.

[0074] In some specific embodiments, the brush 911 is fixed between the two auxiliary guide rods 81 in the reference feed rod group via a brush holder. The brush 911 extends horizontally from the brush holder into the upper feed zone q. In the orthographic projection along the length of the layering trough c2, the lower surface of the brush 911 is connected to the upper wall of the pre-layering trough c3, and the upper surface is connected to the bottom of the trough c2 located at the bottom layer. During pre-layering, the spacers are attached to the upper wall of the pre-layering trough c3 and the lower surface of the brush 911 from the side. As the corresponding spacer continues to rise upward, the brush 911 folds upward to avoid it, then returns to its original position and inserts itself between the adjacent spacers. Here, each layer of spacers maintains the same change trend on the sides and middle portion from the pre-layering trough to the bottom layer of the layering trough, ensuring the stability and reliability of pre-layering.

[0075] The delaminator 91 also includes an auxiliary brush 912 fixed above the reference rail 83 and extending along the long side of the separator. The auxiliary brush 912 extends into the upper material area q, with the inner end located above the outer side of the adjacent delaminator module 910. The inner end of the auxiliary brush 912 is located in the movement path of the separator after the material is removed. Here, after the material is removed from the top layer tooth groove, the auxiliary brush is used to form a contact with the side of the removed separator again, further reducing the possibility of the separator sticking.

[0076] In addition, the stratifier 91 of this embodiment further includes an airflow component 913, wherein the airflow component 913 forms an airflow in each layer of the stratification trough to separate adjacent partitions and remove static electricity.

[0077] In some embodiments, the airflow assembly 913 includes two sets of airflow nozzles z located on opposite sides of the loading area q (on either side of the long side of the separators). The airflow generated by these two sets of airflow nozzles z converges in the center of each layer of the tiered trough. The airflow nozzles z are connected by hoses to facilitate adjustment of the spray angle. This ensures that the separators are separated from each other and, due to the convergence of the airflow, ensures that multiple separators can rise synchronously and step by step during the lifting process, reducing the possibility of material jamming.

[0078] In summary, after adopting the screen packing machine, the empty material frames are first placed one by one on the material preparation station at the starting position and corrected by the correction mechanism, and then the material frame carrier is driven by the material preparation power device to lift, move forward, descend, and retreat in sequence to form a transmission cycle path, so that the corrected material frames are moved horizontally to multiple material preparation stations one by one during the forward and downward movement of the material frame carrier; the empty material frames are transferred from the last material preparation station to the packing station by the packing robot; then the screen robot and the material picking mechanism take out the screens and spacers one by one and load them into the material frame at the packing station in an offset and stacked manner, wherein the spacers are stacked on the storage mechanism when taking the materials, driving the spacers to push up and driving the middle of the spacers to arch upward based on the side pieces of the spacers so that the adjacent spacers are layered in the upper and lower directions, and the material picking robot absorbs and transfers the spacers from the arched part; finally, the packed material frames are output along the discharge transmission line. Therefore, compared with the existing technology, the present invention is based on the transmission circulation path formed by the material frame carrier, so that the material frame can be accurately moved to each preparation station after it is aligned at the starting position. At the same time, combined with the layout of the preparation transmission line, the packing station and the discharge transmission line, it effectively improves the loading accuracy of the material frame, ensures the accurate packing of the screen and the spacer, and has a compact structure, effectively saving space; on the other hand, when the spacer is lifted up, the side is used as the reference to drive the middle part to arch upward, ensuring that adjacent spacers are layered up and down, and realizing the accurate and rapid adsorption and transfer of the spacers from the arched part.Thirdly, it facilitates the feeding and discharging of empty and full material frames from the same port of the cartoning machine, which facilitates the transfer of material frames; fourthly, a sliding connection is formed between the starting preparation station and the correction plates on both sides to improve the movement accuracy of the correction plates and the correction accuracy; at the same time, a contact sensor is used to accurately control the retreat distance of the material frame to avoid position displacement caused by impact rebound; fifthly, based on the pre-layered material trough formed between the first wall and the second wall, it is convenient to meet the space requirements for the downward pressure and deformation of the side of the partition during the collision; sixthly, based on the curved wall of the pre-layered material trough, the friction is reduced while the side of the partition is pressed down, so as to reduce the difficulty of the side of the partition rising through the first wall and reduce the probability of material jamming; seventhly, in the process of step-by-step lifting of the partition, the side position of each layer of the partition is ensured to be consistent, so as to achieve the same arch height in the middle of each layer of the partition, so as to facilitate the robot Accurate material removal; On the eighth aspect, based on the layout of the upper and lower surfaces of the brush and the upper wall of the pre-layered material trough and the bottom of the layered tooth groove at the lowest layer, each layer of separator maintains the same change trend on the side and the middle from the pre-layered material trough into the layered tooth groove of the lowest layer, ensuring the stability and reliability of the pre-layering; On the ninth aspect, it is flexible to adapt to the feeding of separators of various specifications and styles, and improves the positioning accuracy of the separators; On the tenth aspect, based on the rectangular outline of the separator, with the adjacent two sides as the reference, by pressing or loosening the other adjacent two sides, fast and accurate positioning is achieved, thereby improving the loading efficiency; On the eleventh aspect, after taking the material from the top-layered tooth groove, the auxiliary brush is used to form a contact with the side of the taken separator again to further reduce the probability of separator adhesion; On the twelfth aspect, it not only ensures that the separators are separated from each other, but also based on the convergence of the airflow, it ensures that multiple separators can rise synchronously and step by step during the lifting, thereby reducing the probability of material jamming.

[0079] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A screen packing machine based on automatic filling of material frames and staggered stacking of screens and spacers, comprising The material frame loading unit includes a material preparation transmission line and a return mechanism; A screen feeding unit, which includes a screen robot; The spacer feeding unit includes a material storage mechanism and a material taking mechanism; The packing unit includes a packing station, a packing robot, and a discharging transmission line. It is characterized by: The material preparation transmission line includes multiple material preparation stations arranged in sequence along the material frame material preparation transmission direction, a material frame carrier that crosses the multiple material preparation stations, and a material preparation power device. The correction mechanism is arranged at the starting material preparation station and corrects the material frames passing through the starting position respectively. The material preparation power device drives the material frame carrier to lift, move forward, descend, and retreat in sequence to form a transmission cycle path. Each corrected material frame moves horizontally to multiple material preparation stations while the material frame carrier moves forward and descends. The packing station is aligned with the last material preparation station. The packing robot transfers the material frame between the packing station and the last material preparation station. The outfeed transmission line is connected to the packing station and is parallel to the material preparation transmission line. The material taking mechanism includes a material taking manipulator and a delaminating device. The separators are stacked on the material storage mechanism. The delaminating device is located at the feeding end of the material storage mechanism. As the separators are pushed upward, the middle part is driven to arch upward based on the side of the separators so that adjacent separators are layered in the vertical direction. The material taking manipulator absorbs and transfers the separators from the arched part. The loading platform is installed in a direction of the lifting of the lifting device, and the loading platform is installed in a direction of the lifting of the lifting device.

2. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 1 is characterized in that: The transmission direction of the material preparation transmission line is opposite to the transmission direction of the material discharge transmission line; and / or, the screen loading unit and the spacer loading unit are respectively arranged in front of and on one side of the packing station.

3. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 1 is characterized in that: Each of the material preparation stations includes support frames located on both sides and forming a support plane from the top surface. The material frame carrier is located between the support frames on both sides and lifts or places the material frame on the support plane during lifting.

4. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 1 is characterized in that: The alignment mechanism uses the rear end surface of the material frame at the starting position as a positioning reference and drives the material frame to be aligned in the left and right directions.

5. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 4 is characterized in that: The correction mechanism includes a positioning substrate located at the rear of the material frame, correction plates located on the left and right sides of the material frame, and a correction power device, wherein the material preparation power device drives the material frame carrier to lift, retreat, and lower in sequence to drive the material frame to fit the positioning substrate from the rear end surface, and the correction power device drives the correction plates on both sides to reciprocate left and right to drive the material frame to correct left and right.

6. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 5 is characterized in that: The material preparation station at the starting position is provided with slide rails located on both sides and extending left and right, and the correction plates on both sides are correspondingly slidably connected to the slide rails; and / or, a contact sensor is also provided above the positioning substrate, and the material frame is attached to the positioning substrate from the rear end surface and synchronously triggers the contact sensor.

7. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 1 is characterized in that: The top surface of the material frame carrier is provided with an anti-skid plate, and when lifted, the material frame is placed on the anti-skid plate; and / or, the material preparation power device includes a transverse frame, a plurality of guide rods vertically arranged on the transverse frame and connected to the material frame carrier from the top, a transverse power member that drives the transverse frame to reciprocate along the material preparation transmission direction, and a lifting power member that drives the material frame carrier to move up and down.

8. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to any one of claims 1 to 7, characterized in that: The discharging transmission line includes a plurality of discharging stations arranged in sequence along the discharging transmission direction, a discharging carrier and a discharging power device which cross the plurality of discharging stations, wherein the structures of the discharging stations, the discharging carrier and the discharging power device are the same as those of the material preparation station, the material frame carrier and the material preparation power device; and / or, the packing unit also includes a packing correction component arranged at the packing station, and the packing correction component has the same structure as the correction mechanism.

9. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 1 is characterized in that: The top of the inner side wall of each auxiliary guide rod forms a second wall surface extending in a direction intersecting with the corresponding first wall surface, wherein the pre-layered material trough opening toward the loading area is formed between the first wall surface and the second wall surface; the first wall surface is an arc-shaped surface arched downward, and one end of the first wall surface is tangent to the top surface of the auxiliary guide rod, and the other end is aligned vertically with the bottom of each layered tooth groove.

10. The screen packaging machine according to claim 1, characterized in that: The brush is horizontally extended into the feeding area, and in the orthographic projection in the length direction of the stratified tooth groove, the lower surface of the brush is connected with the upper wall of the pre-stratified material trough, and the upper surface is connected with the bottom of the stratified tooth groove located at the lowest layer. During pre-stratification, the partition fits the upper wall of the pre-stratified material trough and the lower surface of the brush from the side, and as the corresponding partition continues to rise, the brush folds upward to avoid it and then resets and is inserted between it and the adjacent partition.

11. The screen packaging machine according to claim 1, characterized in that: The plurality of auxiliary guide rods are divided into at least three rod groups, one of which is a reference rod group and the other rod groups are movable rod groups. The movable rod groups are relatively retracted or opened with respect to the reference rod group to match the size of the spacer.

12. The screen packaging machine according to claim 11, characterized in that: There are three material rod groups; the material storage mechanism also includes a reference grid, and the rectangular spacer abuts the reference material rod group and the reference grid from two adjacent sides, and abuts the two movable material rod groups from the other two adjacent sides; the brush is fixedly connected to the reference material rod group.

13. The screen packaging machine according to claim 12, characterized in that: The storage platform is provided with an avoidance groove and two guide groove groups extending along the length directions of the adjacent two side edges of the partition, wherein the reference material rod group passes through the storage platform upward from the avoidance groove, and the two movable material rod groups pass through the storage platform upward from the corresponding guide groove groups and are arranged to reciprocate along the corresponding guide groove groups; and / or the layering device also includes an auxiliary brush arranged above the reference guard, wherein the auxiliary brush extends into the upper material area and the inner end portion is located above the outer side of the adjacent layering module.

14. The screen packaging machine according to claim 1, characterized in that: The demixer also includes an airflow component, wherein the airflow component forms an airflow in each layer of the demixing trough to separate adjacent partitions and remove static electricity; the airflow component includes two groups of airflow nozzles distributed on opposite sides of the loading area, and the airflows formed by the two groups of airflow nozzles converge in the middle of the demixing trough in each layer.

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