Pre-receiving structure and stacking device

Abstract

The utility model relates to a material pre-receiving structure, which comprises a seat body and a material pre-receiving assembly, the seat body is provided with a first blanking port, the material pre-receiving assembly comprises a platform arranged below the seat body, a first driving mechanism used for driving the platform to lift and a plurality of material receiving units installed on the platform, the platform is provided with a second blanking port positioned below the first blanking port, and the material receiving units are arranged on the platform. The multiple material receiving units are arranged on the periphery of the second discharging opening and each comprise a bearing piece and a second driving mechanism used for driving the bearing piece to move between the material receiving position and the avoiding position in a reciprocating mode. When the multiple bearing pieces are located at the material receiving positions correspondingly, the multiple bearing pieces can upwards support the pieces to be stacked. When the multiple bearing pieces are located at the avoiding positions correspondingly, a first channel allowing the to-be-stacked pieces to pass downwards is formed among the multiple bearing pieces. According to the material pre-receiving structure, the stacking uniformity can be guaranteed, and the possibility that the pieces to be stacked are collided and damaged and are inclined and clamped is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of palletizing, in particular to a pre-receiving structure and a palletizing device. Background Art

[0002] After the aluminum sheets are produced and formed, in order to facilitate storage and transportation, the aluminum sheets need to be palletized. In the prior art, generally, a palletizing machine is used to palletize the aluminum sheets. A blanking structure is provided on the palletizing machine, and the aluminum sheets are positioned through the blanking structure so that the aluminum sheets are stacked neatly. An unloading device is usually also provided on the palletizing machine. The unloading device uses an unloading tray to receive the aluminum sheets that slide down from the blanking port of the blanking structure. After the aluminum sheets are stacked into an aluminum sheet stack on the unloading tray, they are then packaged and transported. During the process of switching the unloading tray, it is often necessary to pause the palletizing, which has an adverse impact on the production efficiency.

[0003] In order to alleviate the problem that the existing palletizing machines are difficult to palletize continuously, the patent application with the publication number CN113942840A and the patent application with the publication number CN211077687U have both improved the palletizing machine. A pre-receiving structure capable of temporarily receiving the sheets to be palletized is provided at the blanking port of the palletizing machine, which can reduce the situation of pausing palletizing and help improve the palletizing efficiency.

[0004] The pre-receiving structure configured on the palletizing machine in the prior art has the following technical problems:

[0005] The pre-receiving structure is usually arranged on the lower side of the blanking port and is fixed in the vertical direction. In order to ensure that the pre-receiving structure can receive a certain number of sheets to be palletized, the vertical position of the pre-receiving structure is usually arranged relatively low, so as to form a space for temporarily storing a certain number of sheets to be palletized at the pre-receiving structure. This will cause a relatively large height for the sheets to be palletized to slide down when the pre-receiving structure just starts to receive the sheets to be palletized, and then it is easy for the sheets to be palletized to be bumped and damaged and for the sheets to be palletized to be inclined and stuck.

[0006] As the number of sheets to be palletized received on the pre-receiving structure increases, the height for the sheets to be palletized to slide down becomes smaller and smaller. The change in the height for the sheets to be palletized to slide down results in relatively high structural requirements and debugging accuracy requirements for the sheet alignment structure at the blanking port. In the actual production process, it is easy to occur that the palletizing neatness cannot meet the requirements. Summary of the Utility Model

[0007] The purpose of the present utility model is to provide a pre-receiving structure and a palletizing device to alleviate or eliminate at least one of the above technical problems.

[0008] A pre-feeding structure according to the present utility model includes a base body and a pre-feeding assembly. A first blanking opening is provided on the base body. The pre-feeding assembly includes a platform disposed below the base body, a first driving mechanism for driving the platform to move up and down relative to the base body, and a plurality of receiving units mounted on the platform. A second blanking opening located below the first blanking opening is provided on the platform. The plurality of receiving units are arranged around the second blanking opening. The plurality of receiving units respectively include a receiving member and a second driving mechanism for driving the receiving member to reciprocate between a receiving position and an avoiding position. When the plurality of receiving members are respectively located at the receiving positions, the plurality of receiving members can support the sheets to be palletized upward. When the plurality of receiving members are respectively located at the avoiding positions, a first passage for the sheets to be palletized to pass downward is formed between the plurality of receiving members.

[0009] Optionally, the plurality of receiving members respectively include extending portions extending upward from the second driving mechanism, and the upper end surfaces of the extending portions are supporting surfaces for supporting the sheets to be palletized upward.

[0010] Optionally, a plurality of avoiding notches for respectively avoiding the plurality of receiving members are provided at the edge of the first blanking opening.

[0011] Optionally, when the plurality of receiving members are respectively located at the receiving positions, a second passage for the receiving tray to pass upward and downward is formed between the plurality of receiving members.

[0012] Optionally, the plurality of receiving units are respectively arranged at the front side, left side and right side of the second blanking opening.

[0013] Optionally, the first driving mechanism includes a mounting bracket fixedly arranged relative to the base body and an electric push rod connected between the mounting bracket and the platform.

[0014] Optionally, a plurality of guide rods extending downward are connected to the base body, and a plurality of guide holes respectively slidably engaged with the plurality of guide rods are provided on the platform.

[0015] Optionally, the second driving mechanism includes a linear guide rail horizontally mounted on the platform, a slider connected to the linear guide rail, and a cylinder for driving the slider to perform linear reciprocating motion along the linear guide rail. The receiving member is fixedly connected to the slider.

[0016] The present utility model also proposes a palletizing device including the pre-feeding structure described in any one of the above.

[0017] Optionally, it further includes a receiving tray and an electric lifting cylinder for driving the receiving tray to lift. The electric lifting cylinder is vertically arranged below the second blanking opening.

[0018] The pre-joining structure provided by the utility model can ensure the neatness of stacking, and also help to reduce the possibility of collision damage and tilting and jamming of the stacking pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the pre-joining structure described in some embodiments;

[0020] Figure 2 It is a partial structural schematic diagram of the pre-joining structure described in some embodiments;

[0021] Figure 3 It is a rear view of the pre-joined material structure described in some embodiments.

[0022] Wherein: 1- base; 2- pre-joined components;

[0023] 101-first blanking opening; 102-avoidance gap;

[0024] 201-lifting plate; 202-guide rod; 203-first longitudinal beam; 204-second longitudinal beam; 205-cross beam; 206-second driving mechanism; 207-linear guide rail; 208-slider; 209-cylinder; 210-receiving part; 211-mounting bracket; 212-housing; 213-screw; 214-first motor; 215-second blanking port. DETAILED DESCRIPTION

[0025] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0027] like Figures 1 to 3A pre-feeding structure as shown includes a base body 1 and a pre-feeding component 2. A first blanking port 101 is provided on the base body 1. The pre-feeding component 2 includes a platform arranged below the base body 1, a first driving mechanism for driving the platform to lift relative to the base body 1, and a plurality of receiving units mounted on the platform. A second blanking port 215 is provided on the platform and is located below the first blanking port 101. The plurality of receiving units are arranged around the second blanking port 215. The plurality of receiving units respectively include a receiving member 210 and a second driving mechanism 206 for driving the receiving member 210 to reciprocate between a receiving position and an avoidance position. When the plurality of receiving members 210 are respectively in the receiving positions, the plurality of receiving members 210 can support the sheets to be palletized upward. When the plurality of receiving members 210 are respectively in the avoidance positions, a first passage for the sheets to be palletized to pass downward is formed between the plurality of receiving members 210.

[0028] With the above technical solution, by arranging a platform below the base body 1 and installing a plurality of receiving units on the platform to temporarily receive the sheets to be palletized, and using the plurality of receiving units to temporarily receive the sheets to be palletized during the process of switching the receiving trays, the non-stop palletizing can be realized, which helps to improve the palletizing efficiency. The sheet receiving capacity of the whole machine can reach 60 to 200 sheets per minute. In the above pre-feeding structure, during the process of using the plurality of receiving units to temporarily receive the sheets to be palletized, the platform can lift. After receiving each sheet to be palletized, it can descend by a distance equal to the thickness of one sheet to be palletized, which can ensure that the position where each sheet to be palletized falls remains fixed, that is, each sheet to be palletized falls on the same sheet receiving position, which can ensure the neatness of palletizing and can reduce the structural requirements and debugging difficulty of the sheet alignment structure for the sheets to be palletized on the palletizing device.

[0029] In some embodiments, the plurality of receiving members 210 respectively include extending portions that extend upward from the second driving mechanism 206, and the upper end surfaces of the extending portions are support surfaces for supporting the sheets to be palletized upward. By providing the upward-extending extending portions and using the lifting function of the platform, the extending portions of the plurality of receiving members 210 can extend above the first blanking port 101 to receive materials, which helps to reduce the falling height of the sheets to be palletized during the palletizing process, and further reduces the possibility of the sheets to be palletized being knocked and damaged and the possibility of the sheets to be palletized being inclined and stuck. In specific implementation, a plurality of limiting rods for aligning the sheets to be palletized can be provided above the first blanking port 101.

[0030] In some embodiments, a plurality of avoidance notches 102 for respectively avoiding the plurality of receiving members 210 are provided at the edge of the first blanking port 101. The avoidance notches 102 are used to avoid the receiving members 210 when the receiving members 210 retract from the receiving positions to the avoidance positions, which provides convenience for the extending portions of the receiving members 210 to extend upward above the first blanking port 101 to receive materials.

[0031] In some embodiments, when multiple receiving members 210 are respectively located at the material receiving positions, there is a second channel between the multiple receiving members 210 for the material receiving tray to pass through upward and downward. The second channel is used to avoid the material receiving tray. During the process of switching the material receiving tray, the empty material receiving tray can rise through the second channel to the position for receiving the sheets to be palletized, so that the empty material receiving tray can receive the sheets to be palletized on the multiple receiving members 210, realizing the switching of the material receiving tray. In specific implementation, when the multiple receiving members 210 are respectively located at the material receiving positions, there is an interval space between the multiple receiving members 210, and the interval space is used to form the second channel.

[0032] In specific use, when it is necessary to switch the material receiving tray, after the material receiving tray filled with the sheets to be palletized descends, the multiple receiving members 210 move from the avoiding position to the material receiving positions to temporarily receive the sheets to be palletized, and the empty material receiving tray can rise through the second channel to the position for receiving the sheets to be palletized. At this time, the sheets to be palletized temporarily received by the multiple receiving members 210 are supported on the material receiving tray, and the multiple receiving members 210 move from the material receiving positions to the avoiding positions, and the switching of the material receiving tray can be completed.

[0033] In some embodiments, multiple material receiving units are respectively arranged on the front side, left side and right side of the second blanking port 215. In specific implementation, one material receiving unit can be provided on the front side, left side and right side of the second blanking port 215 respectively, and the three material receiving units can provide stable support for the sheets to be palletized.

[0034] In some embodiments, the first driving mechanism includes a mounting bracket 211 fixedly arranged relative to the seat body 1 and an electric push rod connected between the mounting bracket 211 and the platform. The electric push rod can be used to drive the platform to lift relative to the seat body 1, and has the characteristics of being easy to control. In specific implementation, the electric push rod is a commonly used actuator widely sold on the market, and the corresponding product can be selected according to the weight it needs to lift.

[0035] As a specific example, both the mounting bracket 211 and the seat body 1 can be fixedly connected to the frame by bolts. The electric push rod includes a housing 212 fixedly connected to the mounting bracket 211, a first motor 214 fixedly installed on the mounting bracket 211, and a rolling screw connected between the mounting bracket 211 and the platform. The output shaft of the first motor 214 is in transmission connection with the nut of the rolling screw. The first motor 214 is used to drive the nut of the rolling screw to rotate to drive the platform to lift. The nut of the rolling screw, the output shaft of the first motor 214, and the gear transmission mechanism between the rolling screw are all installed in the housing 212, and the screw 213 of the rolling screw is fixedly connected to the platform. The rolling screw can be a roller screw or a ball screw.

[0036] In some embodiments, a plurality of guide rods 202 extending downward are connected to the seat body 1, and a plurality of guide holes respectively slidably engaged with the plurality of guide rods 202 are provided on the platform. In specific implementation, the upper ends of the guide rods 202 can be fixedly connected to the seat body 1. Providing a plurality of guide rods 202 can ensure that the platform makes a linear reciprocating motion in the up and down direction.

[0037] As a preferred example, the platform includes a lifting plate 201, a first longitudinal beam 203, a second longitudinal beam 204, and a cross beam 205. The guide holes are all provided on the lifting plate 201. The first longitudinal beam 203 is connected between one end of the cross beam 205 and the lifting plate 201, and the second longitudinal beam 204 is connected between the other end of the cross beam 205 and the lifting plate 201. A second blanking port 215 is formed among the lifting plate 201, the first longitudinal beam 203, the second longitudinal beam 204, and the cross beam 205. The three receiving units can be respectively installed on the first longitudinal beam 203, the second longitudinal beam 204, and the cross beam 205.

[0038] In some embodiments, the second driving mechanism 206 includes a linear guide rail 207 horizontally and fixedly installed on the platform, a slider 208 connected to the linear guide rail 207, and a cylinder 209 for driving the slider 208 to make a linear reciprocating motion along the linear guide rail 207. The receiving member 210 is fixedly connected to the slider 208. The cylinder body of the cylinder 209 can be fixedly installed on the platform or the linear guide rail 207, and the piston rod of the cylinder 209 can be fixedly connected to the slider 208. The cylinder 209 drives the slider 208 to reciprocate along the linear guide rail 207, so that the receiving member 210 moves towards the center of the second blanking port 215 and moves away from the center of the second blanking port 215.

[0039] The present utility model also proposes a palletizing device, including the pre-receiving structure described in any one of the above.

[0040] In some embodiments, the palletizing device further includes a receiving tray and an electric lifting cylinder for driving the receiving tray to lift. The electric lifting cylinder is vertically arranged below the second blanking port 215. Using the electric lifting cylinder to drive the receiving tray to lift and cooperating with the pre-receiving structure can achieve non-stop pallet changing.

[0041] As a specific example, the palletizing device includes a storage component. The storage component includes a rotating table, an electric lifting cylinder, and a plurality of receiving trays. The electric lifting cylinder is vertically arranged below the second blanking port 215. A plurality of tray supporting parts are provided on the rotating table, and the plurality of receiving trays are respectively supported on the plurality of tray supporting parts. The rotating table is used to switch an empty receiving tray above the electric lifting cylinder, and the electric lifting cylinder is used to lift the receiving tray above it and lower the lifted receiving tray to the rotating table.

[0042] More specifically, the storage component further includes a base, a rotary table transmission mechanism, and a second motor. The rotary table is rotatably supported on the base, the second motor is fixedly connected to the base, and the rotary table transmission mechanism transmits power between the rotary table and the power output end of the second motor. The second motor is used to drive the rotary table to rotate, and the rotary table transmission mechanism can be a gear transmission mechanism. The rotary table is mounted on the base in a manner that it can rotate about the central axis of the rotary table. A gear ring coaxial with the rotary table is fixedly connected to the rotary table, and a driving gear meshing with the gear ring is fixedly mounted on the output shaft of the second motor. A plurality of mounting through holes are provided on the rotary table and are evenly distributed in the circumferential direction of the rotary table; a plurality of receiving trays are all supported on the rotary table, and cylindrical portions extending downward are fixedly connected to the plurality of receiving trays, and the plurality of cylindrical portions respectively cooperate with the plurality of mounting through holes; the electric lifting cylinder is arranged on the lower side of the rotary table, and the electric lifting cylinder can be fixedly mounted on the frame. The diameter of the output shaft of the electric lifting cylinder is not greater than the diameter of the mounting through hole. The upper end of the output shaft of the electric lifting cylinder is provided with a shaft head for cooperating with the cylindrical portion and a supporting surface for supporting the cylindrical portion. The central axis of the electric lifting cylinder is parallel to the central axis of the rotary table, and the distance between the central axis of the mounting through hole and the central axis of the rotary table is equal to the distance between the central axis of the electric lifting cylinder and the central axis of the rotary table.

[0043] In specific implementation, the electric lifting cylinder is a commonly used electric actuator widely sold in the market, and corresponding products can be selected according to the weight it needs to lift.

[0044] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics of the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0045] In the description of the present invention, it should be understood that the orientations indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. are based on the attached Figure 1The orientation represented by the coordinate system in this is only for the convenience of describing the present utility model 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 utility model.

Claims

1. A pre-feeding structure, characterized in that, It includes a base body and a pre-feeding component. A first blanking opening is provided on the base body. The pre-feeding component includes a platform arranged below the base body, a first driving mechanism for driving the platform to lift relative to the base body, and a plurality of feeding units mounted on the platform. A second blanking opening located below the first blanking opening is provided on the platform. The plurality of feeding units are arranged around the second blanking opening. The plurality of feeding units respectively include a receiving member and a second driving mechanism for driving the receiving member to reciprocate between a feeding position and an avoiding position; when the plurality of receiving members are respectively in the feeding positions, the plurality of receiving members can support the sheets to be stacked upwards; when the plurality of receiving members are respectively in the avoiding positions, a first passage for the sheets to be stacked to pass downwards is formed between the plurality of receiving members.

2. The pre-material receiving structure according to claim 1, wherein The plurality of receiving members respectively include extending portions extending upwards from the second driving mechanism, and the upper end surfaces of the extending portions are support surfaces for supporting the sheets to be stacked upwards.

3. The pre-feeding structure according to claim 1, characterized in that, A plurality of avoiding notches for respectively avoiding the plurality of receiving members are provided at the edge of the first blanking opening.

4. The pre-feeding structure according to claim 1, wherein When the plurality of receiving members are respectively in the feeding positions, a second passage for allowing a feeding tray to pass upwards and downwards is provided between the plurality of receiving members.

5. The pre-feeding structure according to claim 1, wherein The plurality of feeding units are respectively arranged at the front side, left side and right side of the second blanking opening.

6. The pre-material receiving structure according to claim 1, wherein, The first driving mechanism includes a mounting bracket fixedly arranged relative to the base body and an electric push rod connected between the mounting bracket and the platform.

7. The pre-feeding structure according to claim 1, wherein A plurality of downwardly extending guide rods are connected to the base body, and a plurality of guide holes respectively slidably matched with the plurality of guide rods are provided on the platform.

8. The pre-feeding structure according to claim 1, wherein The second driving mechanism includes a linear guide rail horizontally mounted on the platform, a slider connected to the linear guide rail, and a cylinder for driving the slider to perform linear reciprocating motion along the linear guide rail. The receiving member is fixedly connected to the slider.

9. A palletizing device, characterized in that, It includes the pre-feeding structure according to any one of claims 1-8.

10. The palletizing device according to claim 9, characterized in that, It further includes a feeding tray and an electric lifting cylinder for driving the feeding tray to lift. The electric lifting cylinder is vertically arranged below the second blanking opening.

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