Screen box filling machine based on material frame automatic position covering and screen and spacer staggered stacking

Abstract

The invention discloses a screen box filling machine based on material frame automatic position complementing and screen and spacer staggered stacking, which comprises a material frame feeding unit, a material frame discharging unit, a material frame discharging unit and a material frame conveying unit, the screen feeding unit comprises a screen manipulator; the spacer feeding unit comprises a storage mechanism and a taking mechanism; the boxing unit comprises a boxing station, a boxing mechanical arm and a discharging conveying line. On one hand, on the basis of a conveying circulation path formed by the material frame carrying table, the material frames are accurately moved to all the material preparation stations after being corrected at the starting station, meanwhile, by combining the layout of the material preparation conveying line, the boxing station and the discharging conveying line, the feeding precision of the material frames is effectively improved, accurate boxing of screens and spacers is ensured, the structure is compact, and the production efficiency is improved. The space is effectively saved; and on the other hand, the middle part is driven to arch upwards by taking the side edge as a reference in the upward jacking process of the spacers, so that the adjacent spacers are layered up and down, and the spacers are accurately and rapidly adsorbed and transferred one by one from the arch part.

Description

Technical Field

[0001] The present invention belongs to the field of packing equipment, and particularly relates to a screen packing machine based on automatic replenishment of a material frame, and staggered stacking of a screen and a spacer. Background Art

[0002] Currently, during the packing process of a screen, it is usually necessary to place separator paper between every two adjacent screens to form protection.

[0003] Existing screen packing equipment mainly includes a screen loading unit, a separator paper loading unit, a material frame loading unit, and a packing unit, that is, the packing and discharging operations are implemented through the sequential loading of a screen, separator paper, and material frame by the packing unit. Among them, the existing separator paper loading unit, for example, the pre-separation mechanism disclosed in Chinese Patent No. CN222729052U, uses a conductive brush and a blowing device. The bristles of the conductive brush are made of conductive fibers. During the process of picking and placing materials, the bristles of the conductive brush contact the side edge of the kraft paper, and the side of the blowing device facing the kraft paper is a serrated structure, and a plurality of air outlets are provided on the serrated structure. When the second material supply bin jacks up the stacked kraft paper, or when the picking mechanism picks up the kraft paper and moves upward, the side edge of the kraft paper contacts the conductive brush, thereby eliminating the static electricity influence on the kraft paper. At the same time, air is blown through the air outlets on the serrated structure of the blowing device to layer adjacent kraft papers, facilitating the pre-separation of the kraft papers and facilitating the picking mechanism to pick up the kraft papers.

[0004] Another example is the automatic product packing device for a production line disclosed in Chinese Patent No. CN208165365U. The involved empty box conveying mechanism 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 heights of the empty box conveyor belt and the carton conveyor belt are flush, the empty box conveyor belt and the carton conveyor belt are vertically arranged, 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 likely to exist: 1. In the traditional empty box loading mechanism, the empty box is conveyed by a conveyor belt, and cannot be rectified. Moreover, during the transmission, the quality of the empty box is low, and the vibration generated each time the conveyor belt starts, stops, or during transmission is likely to cause the position deviation of the empty box, affecting the position accuracy of loading, resulting in inaccurate packing positions. In addition, in the existing layout where the empty box and full box conveyor belts are connected end to end, a large amount of space is occupied; 2. When lifting and loading horizontally stacked sheets, affected by factors such as the lifting rate or electrostatic adsorption, the phenomenon that adjacent sheets are attracted to each other and enter the same sawtooth groove easily occurs. Moreover, under the resistance of the side walls of the sawtooth groove against the sides of multiple sheets, the difficulty of separating the sheets is further increased, resulting in a low layering rate. In addition, as the sheets continue to be lifted in the sawtooth structure, only the sides of the sheets can be layered, while the middle area of the sheets is still prone to adhesion, which easily leads to failure in taking materials or bringing out the lower sheets when taking materials from the top layer. Summary of the Invention

[0006] The object of the present invention is to overcome the deficiencies of the prior art and provide an improved screen packing machine based on automatic blanking frame compensation, misaligned stacking of screens and spacers.

[0007] To achieve the above object, the solution adopted by the present invention is: A screen packing machine based on automatic blanking frame compensation, misaligned stacking of screens and spacers, which includes A blanking frame feeding unit, which includes a blanking transmission line and a rectifying mechanism; A screen feeding unit, which includes a screen manipulator; A spacer feeding unit, which includes a storage mechanism and a picking mechanism; A packing unit, which includes a packing station, a packing manipulator, and an unloading transmission line, The blanking transmission line includes a plurality of blanking stations arranged in sequence along the blanking transmission direction of the blanking frame, a blanking frame carrier table crossing the plurality of blanking stations, and a blanking power device. The rectifying mechanism is arranged at the blanking station where it starts, and rectifies the blanking frames passing through the starting position respectively. The blanking power device drives the blanking frame carrier table to lift, move forward, descend, and retreat in sequence to form a transmission circulation path. Each rectified blanking frame is laterally moved among the plurality of blanking stations during the forward movement and descent of the blanking frame carrier table; The packing station is aligned with the last blanking station. The packing manipulator transfers the blanking frame between the packing station and the last blanking station. The unloading transmission line is connected to the packing station and is parallel to the blanking transmission line; The picking mechanism includes a picking manipulator and a layer separator. Among them, the spacers are stacked on the storage mechanism. The layer separator is located at the feeding end of the storage mechanism, and as the spacers are lifted upward, it drives the middle part to arch upward with the side of the spacer as the reference, so that adjacent spacers are layered in the vertical direction. The picking manipulator adsorbs and transfers the spacers from the arched part.

[0008] According to a specific implementation and preferred aspect of the present invention, the transmission direction of the blanking transmission line is opposite to the transmission direction of the unloading transmission line; and / or, the screen feeding unit and the spacer feeding unit are respectively arranged in front of and on one side of the packing station. Here, it is convenient to realize the feeding and discharging of the empty blanking frame and the full blanking frame from the same port of the packing machine, which is convenient for the transfer of the blanking frame.

[0009] Preferably, each stock preparation station includes support frames located on both sides and forming a support plane from the top surface. The material box carrier is located between the support frames on both sides and lifts or places the material box on the support plane during lifting and lowering.

[0010] According to another specific implementation and preferred aspect of the present invention, the alignment mechanism uses the rear end face of the material box at the starting position as the positioning reference and drives the material box to be aligned in the left-right direction. Here, it is convenient for the material box to achieve rapid positioning during one-time clapboard alignment.

[0011] Preferably, the alignment mechanism includes a positioning substrate located behind the material box, alignment plates located on the left and right sides of the material box, and an alignment power device. Among them, the stock preparation power device drives the material box carrier to lift, retreat, and lower in sequence to drive the material box to fit the positioning substrate from the rear end face, and the alignment power device drives the alignment plates on both sides to move left and right reciprocally to drive the material box to be aligned left and right.

[0012] Preferably, sliding rails extending left and right and located on both sides are formed on the stock preparation station at the starting position, and the alignment plates on both sides are correspondingly slidably connected to the sliding rails; and / or, a contact sensor is further provided above the positioning substrate, and the material box fits the positioning substrate from the rear end face and synchronously triggers the contact sensor. Here, based on the formation of a sliding connection between the stock preparation station at the starting position and the alignment plates on both sides, the movement accuracy of the alignment plates is improved, and the alignment accuracy is enhanced; at the same time, a contact sensor is used to accurately control the retreat distance of the material box to avoid position deviation caused by impact and rebound.

[0013] Preferably, an anti-slip plate is provided on the top surface of the material box carrier, and when lifting, the material box is placed on the anti-slip plate; and / or, the stock preparation power device includes a transverse movement frame, multiple guide rods vertically arranged on the transverse movement frame and connected to the material box carrier from the top, a transverse movement power member for driving the transverse movement frame to reciprocate along the stock preparation transmission direction, and a lifting power member for driving the material box carrier to move up and down.

[0014] According to another specific implementation and preferred aspect of the present invention, the discharge transmission line includes a plurality of discharge stations arranged in sequence along the discharge transmission direction, a discharge carrier crossing the plurality of discharge stations, and a discharge power device. Among them, the structures of the discharge station, the discharge carrier, and the discharge power device are correspondingly the same as those of the stock preparation station, the material box carrier, and the stock preparation power device; and / or, the packing unit further includes a packing alignment component arranged at the packing station, and the structure of the packing alignment component is the same as that of the alignment mechanism. Here, it is convenient for installation and implementation.

[0015] According to yet another specific implementation and preferred aspect of the present invention, the storage mechanism includes a storage platform, auxiliary guide rods, and a lifting component, where there are multiple auxiliary guide rods; the layer separator includes layer separation modules and brushes respectively arranged at the upper ends of the respective auxiliary guide rods, and each layer separation module is formed with a plurality of layer separation grooves in the feeding direction of the storage platform. The inner side walls of the respective auxiliary guide rods, each layer separation groove, and the top surface of the storage platform constitute a feeding area. The layer separation grooves of each layer separation module are located above the inner side of the inner side wall of the corresponding auxiliary guide rod, and a pre-layer separation material groove is formed between the layer separation groove and the inner side wall of the auxiliary guide rod; the brush is fixed on any one or two auxiliary guide rods and forms a layer separation cooperation with the pre-layer separation material groove. The brush extends into the feeding area and its inner end is located above the inner side of the pre-layer separation material groove. During the lifting of the lifting component, the spacer abuts against the pre-layer separation material groove and the brush from the side, arches upward from the middle to form a pre-layer separation. And as the storage platform continues to lift, from the pre-layer separation upward, the spacer maintains the middle arched, the sides are separated in layers, and gradually rises to the layer separation material grooves formed by each layer of layer separation grooves. It should be particularly noted that in this application, based on the spacer abutting against the pre-layer separation material groove and the brush from the side, during the lifting, the spacer arches relatively in the middle with the side as the reference, thereby realizing the pre-separation from the adjacent spacers. And during the lifting, the spacers are forced to abut against each other from the middle to realize the gradual rise. And when entering the corresponding layer separation material groove, the lifting stops (if necessary, it can be lowered slightly), then the middle of the spacer loses force and separates from each other, and the spacer automatically realizes layer separation while maintaining the middle arched.

[0016] Preferably, the top of the inner side wall of each auxiliary guide rod forms a second wall surface whose extending direction intersects with the corresponding first wall surface, and a pre-layer separation material groove with an opening facing the feeding area is formed between the first wall surface and the second wall surface. Here, based on the pre-layer separation material groove formed between the first wall surface and the second wall surface, it is convenient to meet the space requirement for the downward deformation of the side of the spacer during abutment.

[0017] Preferably, the first wall surface is an arc surface that arches downward. Here, while realizing the abutment and downward pressure on the side of the spacer, the friction is reduced to lower the difficulty of the side of the spacer rising through the first wall surface and reduce the probability of material jamming.

[0018] Preferably, one end of the first wall surface is tangent to the top surface of the auxiliary guide rod, and the other end is vertically aligned with the bottom of each layer separation groove. Here, during the gradual lifting of the spacer, it is ensured that the side positions of the spacers in each layer are the same, and thus the arched height of the middle of the spacers in each layer is the same, which is convenient for the manipulator to accurately pick up the material.

[0019] Preferably, the brush extends horizontally into the feeding area. Here, as the spacer continues to lift, the brush can accurately insert between every two adjacent spacers in the horizontal direction.

[0020] According to another specific implementation and preferred aspect of the present invention, in the orthographic projection in the length direction 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 stratified tooth groove at the lowest layer. During pre-stratification, the spacer fits the upper wall of the pre-stratified material groove and the lower surface of the brush from the side, and as the corresponding spacer continues to rise upward, the brush folds upward to avoid it and then resets and inserts it between the adjacent spacer. Here, each layer of spacers maintains the same change trend on the side and the middle to enter the stratified tooth groove of the lowest layer from the pre-stratified material groove, ensuring the stability and reliability of the pre-stratification.

[0021] Preferably, the plurality of auxiliary guide rods are divided into at least three feed rod groups, one of which is a reference feed rod group, and the other feed rod groups are movable feed rod groups, and each movable feed rod group is relatively closed or opened with respect to the reference feed rod group to match the size of the spacer. Here, the feeding of spacers of various specifications and styles is flexibly applicable, and the position accuracy of the spacers is improved.

[0022] Specifically, there are three material rod groups; the material storage mechanism also includes a reference fence, a rectangular spacer with two adjacent sides against the reference material rod group and the reference fence, and with the other two adjacent sides against the two movable material rod groups; the brush is fixedly connected to the reference material rod group. Based on the rectangular outline of the spacer, with the two adjacent sides as the reference, by abutting or releasing the other two adjacent sides, fast and accurate positioning is achieved to improve the feeding efficiency.

[0023] Preferably, the material storage platform is formed with an avoidance groove and two guide groove groups extending along the length direction of the adjacent two sides of the spacer, wherein the reference material rod group passes upward from the avoidance groove to the material storage platform, and the two movable material rod groups pass upward from the corresponding guide groove groups to the material storage platform and reciprocate along the corresponding guide groove groups; and / or, the layering device also includes an auxiliary brush arranged above the reference grid, wherein the auxiliary brush extends into the upper material area and the inner end is located above the outer side of the adjacent layering module. Here, after taking the material from the top layering tooth groove, the auxiliary brush forms a resistance against the side of the taken spacer again, so as to further reduce the probability of the spacer sticking.

[0024] In addition, the layering device also includes an airflow component, wherein the airflow component forms an airflow in each layer of the layered material trough to separate adjacent spacers and remove static electricity; the airflow component includes two sets of airflow nozzles distributed on opposite sides of the loading area, and the airflows formed by the two sets of airflow nozzles converge in the middle of each layer of the layered material trough. Here, it is ensured that the spacers are separated from each other, and based on the convergence of the airflow, it is ensured that multiple spacers can rise synchronously and step by step during the lifting process, reducing the probability of material jamming.

[0025] Due to the application of the above-mentioned technology and equipment solutions, the present invention has the following advantages compared with the prior art: The existing technology uses a conveyor belt to transport empty boxes, which cannot be corrected, and the quality of the empty boxes is low during transportation. The vibration generated each time the conveyor belt is started, stopped or during transportation is likely to cause the position of the empty box to shift, affecting the position accuracy of the loading and causing the problem of inaccurate loading position. In addition, the existing empty box and full box conveyor belts are connected from end to end, which occupies 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 likely to be attracted to each other and enter the same serrated groove. In addition, 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, while 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 the sheets. The present application is based on automatic filling of the material frame, and the staggered stacking of the screen and the spacer. The structure of the screen packing machine is designed as a whole, which cleverly solves the shortcomings and defects of the existing technology. 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 preparation power device drives the material frame carrier 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 located at the packing station in a staggered and stacked manner, wherein the spacers are stacked on the material 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 up and down 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 prior art, the present invention is based on the transmission circulation path formed by the material frame carrier to realize the precise movement of the material frame to each material preparation station after the material frame is aligned at the starting position. At the same time, combined with the layout of the material preparation transmission line, the packing station and the material discharge transmission line, the loading accuracy of the material frame is effectively improved, ensuring the precise packing of the screen and the spacer, and the structure is compact, effectively saving space; on the other hand, when the spacer is lifted up, the side edge is used as a reference to drive the middle part to arch upward, ensuring that adjacent spacers are layered up and down, and realizing the precise and rapid adsorption and transfer of the spacers piece by piece from the arched part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the screen packaging machine of this embodiment; Figure 2 for Figure 1 A magnified schematic diagram of the local structure of the middle packing unit; Figure 3 for Figure 1 A magnified schematic diagram of the local structure of the medium material preparation power unit; Figure 4 is Figure 2 the enlarged structural schematic diagram of the centering mechanism in Figure 5 is Figure 1 the enlarged structural schematic diagram of the case-packing manipulator in Figure 6 is Figure 1 the three-dimensional structural schematic diagram of the spacer feeding unit in Figure 7 is Figure 6 the front view schematic diagram of Figure 8 is Figure 7 the top view schematic diagram of Figure 9 is Figure 7 the enlarged partial structural schematic diagram of Among them: ①. The frame feeding unit; 1. The stock preparation transmission line; 10. The stock preparation station; 100. The support frame; 11. The frame carrier; 110. The anti-slip plate; 12. The stock preparation power device; 120. The transverse movement frame; 121. The guide rod; 122. The transverse movement power member; 123. The lifting power member; 2. The centering mechanism; 200. The contact sensor; 20. The positioning substrate; 21. The centering plate; k. The slider; 22. The centering power device; ②. The case-packing unit; 3. The case-packing station; 4. The case-packing manipulator; 40. The clamping arm; 41. The transfer power device; 5. The discharge transmission line; 50. The discharge station; 51. The discharge carrier; 52. The discharge power device; 6. The case-packing centering component; ③. The screen feeding unit; 7. The feeding support frame; ④. The spacer feeding unit; 8. The storage mechanism; 80. The storage platform; c0. The avoidance groove; c1. The guide groove group; 81. The auxiliary guide rod; d. The linear motion driving mechanism; 82. The lifting component; 83. The reference abutment; 9. The picking mechanism; 90. The picking manipulator; 91. The layer separator; 910. The layer separation module; c2. The layer separation tooth groove; c3. The pre-layer separation material groove; m1. The first wall surface; m2. The second wall surface; q. The feeding area; 911. The brush; 912. The auxiliary brush; 913. The air flow component; z. The air flow nozzle; K. The frame. Specific embodiments

[0027] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0030] In the present application, unless otherwise clearly specified and limited, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature. It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0032] 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.

[0033] 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.

[0034] 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 material frame K passing through the starting position is corrected 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.

[0035] 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, and the material frame carrier 11 is located between the support frames 100 on both sides 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 the support stability. The top surface of the material frame carrier 11 is provided with an anti-slip plate 110 (such as a silicone back plate), and when lifting, the material frame K is placed on the anti-slip plate 110; the material preparation power device 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.

[0036] In this example, the correction mechanism 2 takes the rear end face of the material frame K at the starting position as the positioning reference, and drives the material frame K to correct in the left and right directions. Here, it is convenient for the material frame to realize rapid positioning in one-time correction.

[0037] 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.

[0038] For convenient implementation, slide rails extending left and right are formed on the stock preparation station 10 at the starting position, and the two-sided alignment plates 21 are slidably connected to the slide rails through sliders k correspondingly from the bottom; a contact sensor 200 is further provided above the positioning substrate 20, and the material box K is attached to the positioning substrate 20 from the rear end face and synchronously triggers the contact sensor 200. Here, based on the formation of a sliding connection between the stock preparation station at the starting position and the two-sided alignment plates, the moving accuracy of the alignment plates is improved, and the alignment accuracy is enhanced; at the same time, a contact sensor is used to accurately control the retraction distance of the material box to avoid position deviation caused by impact and rebound.

[0039] In this example, the packing station 3 is aligned with the stock preparation station 10 at the end position. The packing manipulator 4 transfers the material box K between the packing station 3 and the stock preparation station 10 at the end position. The discharge conveyor line 5 is connected to the packing station 3 and is parallel to the stock preparation conveyor line 1, and the stock preparation direction of the stock preparation conveyor line 1 is opposite to the discharge direction of the discharge conveyor line 5. The screen loading unit ③ and the spacer loading unit ④ are respectively arranged in front of and on one side of the packing station 3. Here, it is convenient to realize the feeding and discharging of the empty material box and the full material box from the same port of the packing machine, facilitating the transfer of the material box.

[0040] In some specific embodiments, the packing manipulator 4 includes clamping arms 40 capable of clamping or loosening the material box K from the left and right sides, and a transfer power device 41 that drives the clamping arms 40 to move horizontally and vertically to respectively dock with the stock preparation station 10 at the end position and the packing station 3; there are two discharge conveyor lines 5 arranged side by side. Each discharge conveyor line 5 includes a plurality of discharge stations 50 arranged in sequence along the discharge direction, a discharge carrier 51 crossing the plurality of discharge stations 50, and a discharge power device 52. The structures of the discharge station 50, the discharge carrier 51, and the discharge power device 52 are correspondingly the same as those of the stock preparation station 10, the material box carrier 11, and the stock preparation power device 12; the packing alignment component 6 is arranged at the packing station 3, and the structure of the packing alignment component 6 is the same as that of the alignment mechanism 2. Here, it is convenient for installation and implementation.

[0041] In this example, the storage mechanism 8 includes a storage platform 80, auxiliary guide rods 81, and a lifting component 82; the material taking mechanism 9 includes a material taking manipulator 90 and a layer separator 91. Among them, the spacers are stacked on the storage mechanism 8, the layer separator 91 is located at the feeding end of the storage mechanism 8, and as the spacers are lifted upward, the middle part is driven to arch upward with the side edge of the spacer as the reference, so that adjacent spacers are stratified in the vertical direction, and the material taking manipulator 90 adsorbs and transfers the spacers from the arched part.

[0042] In some specific embodiments, the spacer of this embodiment is a rectangular spacer and is horizontally stacked on the storage platform 80; there are multiple auxiliary guide rods 81, and the multiple auxiliary guide rods 81 are divided into three rod groups, and one of the three rod groups is a reference rod group corresponding to one side edge of the spacer, and the other two rod groups are movable rod groups corresponding to the adjacent two side edges of the spacer. The two movable rod groups are relatively closed or opened with the reference rod group as the reference to match the size of the spacer. That is to say, the reference rod group includes two auxiliary guide rods 81 spaced along one short side of the spacer, and one of the two movable rod groups includes three auxiliary guide rods 81 spaced along one long side of the spacer, and the other includes two auxiliary guide rods 81 spaced along the other short side of the spacer. The lifting member 82 adopts a conventional lifting power member, such as a screw drive.

[0043] At the same time, an avoidance groove c0 and two guide groove groups c1 extending along the length directions of the adjacent two side edges of the spacer are formed on the storage platform 80. Among them, the reference rod group passes through the storage platform 80 upward from the avoidance groove c0, and the two movable rod groups respectively pass through the storage platform upward from the corresponding guide groove groups c1 and are reciprocatingly arranged along the corresponding guide groove groups c1. A linear motion driving mechanism d is respectively connected to the bottom of each movable rod group, which is a conventional technology and will not be elaborated here.

[0044] For further facilitating implementation, the lifting member 82 adopts a screw drive to achieve lifting drive; the storage mechanism 8 further includes a reference abutting grid 83 corresponding to the other long side of the spacer. The rectangular spacer abuts against the reference rod group and the reference abutting grid 83 from the adjacent short side and long side, and abuts against the two movable rod groups from the other adjacent short side and long side. Based on the rectangular contour of the spacer, with two adjacent side edges as the reference, by abutting or releasing the other two adjacent side edges, rapid and accurate positioning is realized, and the feeding efficiency is improved.

[0045] In this example, the material taking manipulator 90 adsorbs with a suction cup and transfers the spacer during horizontal movement; the layer separator 91 includes layer separation modules 910 and brushes 911 correspondingly arranged at the upper ends of the respective auxiliary guide rods 81. Among them, multiple layer separation tooth grooves c2 are formed in the feeding direction of the storage platform on each layer separation module 910. The inner side walls of the respective auxiliary guide rods 81, the layer separation tooth grooves c2 and the top surface of the storage platform 80 constitute a feeding area. The layer separation tooth grooves c2 of each layer separation module 910 are located above the inner side of the inner side wall of the corresponding auxiliary guide rod 81, and a pre-layer separation material groove c3 is formed between the layer separation tooth grooves c2 and the inner side wall of the auxiliary guide rod 81.

[0046] In some specific embodiments, each layering module 910 forms a first wall m1 from the bottom, and the top of the inner side wall of each auxiliary guide rod 81 forms a second wall m2 extending in a direction intersecting with the corresponding first wall m1, wherein a pre-layering slot c3 opening toward the loading area q is formed between the first wall m1 and the second wall m2. Here, based on the pre-layering slot formed between the first wall and the second wall, it is convenient to meet the space requirement for the side of the separator to be pressed down and deformed in the collision.

[0047] At the same time, the first wall surface m1 is an arc-shaped surface that arches downwards, thereby achieving the effect of resisting and pressing down the side edge of the spacer, while reducing friction, so as to reduce the difficulty of the side edge of the spacer rising through the first wall surface and reduce the probability of material jamming.

[0048] 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 with the bottom of each layered tooth groove c2. Here, in the process of gradually lifting the spacers, the side positions of each layer of spacers are ensured to be consistent, so that the height of the middle arch of each layer of spacers is consistent, so that the robot can accurately pick up the material.

[0049] In this example, the brush 911 is fixed on any one or two auxiliary guide rods 81 and forms a stratified coordination with the pre-stratified 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-stratified material trough c3. During the lifting of the lifting component 82, the partition contacts the pre-stratified material trough c3 and the brush 911 from the side and arches upward from the middle to form a pre-stratified layer. As the material storage platform 80 continues to be lifted, the partition moves upward from the pre-stratified layer so that the partition remains arched in the middle, the sides are stratified, and gradually rises to the stratified material trough formed by the stratified tooth grooves c2 of each layer. It should be particularly 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 performed, the partitions are relatively arched in the middle with the side edges as the reference, thereby achieving pre-separation from adjacent partitions. During the jacking, the partitions are forced to touch each other from the middle to achieve a step-by-step ascent. When entering the corresponding layered material trough, the jacking is stopped (if necessary, it can be slightly lowered), and the middle of the partition loses force and separates from each other. The partitions automatically achieve stratification while keeping the middle arched.

[0050] In some specific embodiments, the brush 911 is fixed between two auxiliary guide rods 81 in the reference material rod group through a brush holder, wherein the brush 911 is horizontally extended from the brush holder to the upper material area q, and in the orthographic projection in the length direction of the stratified tooth groove c2, the lower surface of the brush 911 is connected with the upper wall of the pre-stratified material groove c3, and the upper surface is connected with the groove bottom of the stratified tooth groove c2 located at the lowest layer. During pre-stratification, the spacer fits the upper wall of the pre-stratified material groove c3 and the lower surface of the brush 911 from the side, and as the corresponding spacer continues to rise upward, the brush 911 folds upward to avoid it and then resets and inserts it between the adjacent spacers. Here, each layer of spacers maintains the same change trend on the side and the middle to enter the stratified tooth groove of the lowest layer from the pre-stratified material groove, ensuring the stability and reliability of the pre-stratification.

[0051] At the same time, the layering device 91 also includes an auxiliary brush 912 fixed above the reference grid 83 and extending along the long side direction of the spacer, wherein the auxiliary brush 912 extends into the upper material area q and the inner end thereof is located above the outer side of the adjacent layering module 910, and the inner end of the auxiliary brush 912 is located on the moving path of the spacer after taking the material. Here, after taking the material from the top-layer layering tooth groove, the auxiliary brush forms a resistance against the side edge of the taken spacer again, so as to further reduce the probability of the spacer sticking.

[0052] In addition, the layering device 91 of the present embodiment further comprises an airflow component 913, wherein the airflow component 913 forms an airflow in each layering trough to separate adjacent partitions and remove static electricity.

[0053] In some specific embodiments, the airflow assembly 913 includes two groups of airflow nozzles z distributed on opposite sides of the loading area q (located on both sides of the long side direction of the partition), and the airflows formed by the two groups of airflow nozzles z converge in the middle of each layered material trough. The airflow nozzles z are connected by a hose to facilitate the adjustment of the spray angle. Here, it is ensured that the partitions are separated from each other, and based on the convergence of the airflow, it is ensured that multiple partitions can be synchronously and step by step during the lifting, reducing the probability of material jamming.

[0054] In summary, after adopting this screen packing machine, empty material boxes are first placed one by one on the feeding stations at the starting position and rectified by the rectifying mechanism. Then, the material box carrier is driven by the feeding power device to lift, move forward, descend, and retreat in sequence, forming a transmission cycle path, so that the rectified material boxes are laterally moved to multiple feeding stations one by one during the forward movement and descent of the material box carrier; the empty material boxes are transferred from the last feeding station to the packing station by the packing manipulator; then, the screen manipulator and the material taking mechanism respectively take out the screens and spacers one by one and load them into the material box at the packing station in a staggered and stacked manner. When taking the spacers, the spacers are stacked on the storage mechanism, driving the spacers to lift upward and the middle part of the spacers to arch upward with the side pieces of the spacers as the reference, so that adjacent spacers are stratified in the vertical direction, and the material taking manipulator adsorbs and transfers the spacers from the arched part; finally, the material boxes completed with packing are output along the discharge transmission line. Therefore, compared with the prior art, on the one hand, based on the transmission cycle path formed by the material box carrier, the material boxes can be accurately moved to each feeding station after being rectified at the starting position. At the same time, combined with the layout of the feeding transmission line, the packing station, and the discharge transmission line, the feeding accuracy of the material boxes is effectively improved, ensuring the accurate packing of the screens and spacers, and the structure is compact, effectively saving space; on the other hand, when the spacers are lifted upward, the middle part is driven to arch upward with the side as the reference, ensuring that adjacent spacers are stratified up and down, and realizing the accurate and fast adsorption and transfer of the spacers one by one from the arched part.Thirdly, it is convenient to realize the feeding and discharging of the empty and full material frames through the same port of the self-loader, facilitating the transfer of the material frames. Fourthly, a sliding connection is formed between the stock preparation station at the starting position and the two side alignment plates, improving the moving accuracy of the alignment plates and enhancing the alignment precision. At the same time, a contact sensor is adopted to accurately control the retraction distance of the material frame, avoiding the deviation of the position caused by the impact and rebound. Fifthly, based on the pre-stratified material groove formed between the first wall surface and the second wall surface, it is convenient to meet the spatial requirements for the downward deformation of the side edge of the spacer during contact. Sixthly, based on the arc-shaped wall surface of the pre-stratified material groove, while realizing the downward contact pressure on the side edge of the spacer, the friction is reduced, thereby reducing the difficulty of the side edge of the spacer rising through the first wall surface and lowering the probability of material jamming. Seventhly, during the gradual jacking of the spacer, ensure that the side edge positions of the spacers in each layer are the same, and then achieve the same arch height in the middle of the spacers in each layer, facilitating the accurate picking of the spacer by the manipulator. Eighthly, based on the layout of the upper and lower surfaces of the brush and the upper wall of the pre-stratified material groove and the bottom of the stratified tooth groove at the bottom layer, each layer of spacer enters the stratified tooth groove at the bottom layer from the pre-stratified material groove while maintaining the same change trend of the side edge and the middle, ensuring the stability and reliability of the pre-stratification. Ninthly, it is flexibly applicable to the feeding of spacers of multiple specifications and styles, and improves the position accuracy of the spacers. Tenthly, based on the rectangular contour of the spacer, with two adjacent sides as the reference, by abutting or releasing the other two adjacent sides, rapid and accurate positioning is achieved, improving the feeding efficiency. Eleventhly, after picking the spacer from the top-layer stratified tooth groove, the side edge of the picked spacer is further abutted by the auxiliary brush to further reduce the probability of spacer adhesion. Twelfthly, it not only ensures the separation between the spacers, but also, based on the convergence of the air flow, ensures that multiple spacers can rise synchronously and gradually during the jacking, reducing the probability of material jamming.

[0055] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly, and it should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A screen packing machine based on automatic material frame filling, screen and spacer staggered stacking, comprising: The material frame loading unit includes a material preparation transmission line and a return mechanism; A screen feeding unit, which includes a screen manipulator; 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 material discharging transmission line. It is characterized in that The material preparation transmission line includes a plurality of material preparation stations arranged in sequence along the material frame material preparation transmission direction, a material frame carrier that crosses the plurality of material preparation stations, and a material preparation power device. The correction mechanism is arranged at the material preparation station where the material frame passes through the starting position, 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 transversely to the plurality of 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, and the material discharging transmission line is connected with the packing station and parallel to the material preparation transmission line; The material picking mechanism includes a material picking robot and a layering device, wherein the spacers are stacked on the material storage mechanism, the layering device is located at the feeding end of the material storage mechanism, and as the spacers are pushed upward, the middle part is driven to arch upward with the side of the spacers as the reference so that adjacent spacers are layered in the upper and lower directions, and the material picking robot absorbs and transfers the spacers from the arched position.

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 that of the material discharging 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 at 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 rise, retreat, and descend 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 adheres 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 driving the transverse frame to reciprocate along the material preparation transmission direction, and a lifting power member driving the material frame carrier to lift and lower.

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 platform crossing the plurality of discharging stations, and a discharging power device, wherein the structures of the discharging stations, the discharging platforms and the discharging power device are the same as those of the material preparation stations, the material frame platforms 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 material storage mechanism comprises a material storage platform, an auxiliary guide rod, and a lifting component, wherein there are multiple auxiliary guide rods; the layering device comprises a layering module and a brush correspondingly arranged at the upper end of each of the auxiliary guide rods, wherein each layering module is formed with a plurality of layering tooth grooves in the feeding direction of the material storage platform, the inner side wall of each auxiliary guide rod, each layering tooth groove and the top surface of the material storage platform constitute a feeding area, the layering tooth groove of each layering module is located above the inner side of the inner side wall of the corresponding auxiliary guide rod, and a layering tooth groove and the inner side wall of the auxiliary guide rod are formed between the layering tooth groove and the inner side wall of the auxiliary guide rod. 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 during the lifting of the lifting component, 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 material storage platform continues to be lifted, the partition keeps the middle arched and the sides layered from the pre-layered material trough upward and gradually rises to the layered material trough formed by the layered tooth grooves of each layer.

10. The screen packing machine based on automatic material frame filling and staggered stacking of screens and spacers according to claim 9 is characterized in that: The top of the inner wall of each auxiliary guide rod forms a second wall surface extending in the 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.

11. The screen packaging machine according to claim 9, 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 upward, the brush folds upward to avoid it and then resets and is inserted between it and the adjacent partition.

12. The screen packaging machine according to claim 9, 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. Each movable rod group is relatively folded or opened with respect to the reference rod group to match the size of the spacer.

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

14. The screen packaging machine according to claim 13, characterized in that: The material 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 material storage platform upward from the avoidance groove, and the two movable material rod groups pass through the material storage platform upward from the corresponding guide groove groups respectively and are reciprocatingly arranged along the corresponding guide groove groups; and / or the layering device also includes an auxiliary brush arranged above the reference guardrail, 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.

15. The screen packaging machine according to claim 9, characterized in that: The layerer also includes an airflow component, wherein the airflow component forms an airflow that separates adjacent partitions and removes static electricity in the layering troughs at each layer; 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 layering troughs at each layer.

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