Feeding device

Abstract

This utility model relates to the field of semiconductor manufacturing technology and provides a feeding device, which includes a main frame, a lifting and placing mechanism, a buffer mechanism, a transport mechanism, and a tray-splitting mechanism. A transport mechanism is installed on the main frame to transport pallets containing products from the turnover area to the feeding area and empty pallets from the feeding area back to the turnover area. Simultaneously, a lifting and placing mechanism is installed below the turnover area to stack pallets containing products. A buffer mechanism is installed above the turnover area. Compared with existing feeding devices, by arranging the lifting and placing mechanism, the turnover area on the main frame, and the buffer mechanism vertically, the horizontal space occupied by the equipment is reduced. Furthermore, the tray-splitting mechanism enables circumferential transport of pallets within the turnover area, making the overall structure of the feeding device simpler and more compact, and improving the feeding efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of semiconductor manufacturing technology, and in particular relates to a feeding device. Background Technology

[0002] In semiconductor packaging and testing (such as capping bonding, chip bonding, or surface mount technology), the tray loading mechanism is the core module for automated material handling, responsible for accurately, efficiently, and contaminantly transporting chips or cover plates from standardized trays to the processing station. Its working principle involves placing chips or cover plates on the tray in a preset order, and then transporting multiple chips or cover plates together via the tray. However, existing tray loading mechanisms suffer from complex structures and low efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a feeding device that solves the technical problems of complex structure and low working efficiency of existing tray feeding devices.

[0004] This utility model is implemented as follows: it provides a feeding device, comprising:

[0005] A main frame, which has a loading area and a turnover area;

[0006] A lifting and placing mechanism, located below the turnover area, is used to stack trays containing products and drive the trays containing products vertically away from or towards the turnover area on the main frame.

[0007] A buffer unit, located above the turnover area, is used to accommodate empty trays;

[0008] A transport mechanism, mounted on the main frame, is used to transport pallets containing products from the turnover area to the loading area, and also to transport empty pallets from the loading area back to the turnover area; and

[0009] The tray-separating mechanism is installed on the main frame. The tray-separating mechanism is used to separate one of the trays on the lifting and placing mechanism from the other trays and place the separated tray on the transport mechanism. The tray-separating mechanism is also used to transport the trays above the transport mechanism to the buffer mechanism.

[0010] In an optional embodiment, the transport mechanism includes a first transport section and a second transport section. The first transport section includes two parallel first conveyor belt groups, and the main frame is also provided with a spacing adjustment component for adjusting the distance between the two first conveyor belt groups.

[0011] In an optional embodiment, the spacing adjustment component includes two transport sliders spaced apart from each other, two first conveyor belt groups are respectively disposed on the two transport sliders, and a spacing driving unit is disposed between each transport slider and the main frame, the spacing driving unit being used to drive the transport slider away from or towards the other transport slider.

[0012] In one optional embodiment, the first conveyor belt group includes a first pulley, a second pulley, a conveyor belt, and a power unit. The first pulley and the second pulley are both spaced apart on the transport slider. The conveyor belt is fitted over the first pulley and the second pulley. The power unit is used to drive the first pulley or the second pulley to rotate.

[0013] In an optional embodiment, the tray-separating mechanism includes two sets of telescopic support groups located on both sides of the turnover area. The telescopic support groups have support ends. When the lifting and placing mechanism transports the tray containing the product to the turnover area, the support ends are used to abut against the bottom surface of the uppermost tray to separate the tray from the other trays.

[0014] In one optional embodiment, the telescopic support assembly includes a tray support bracket, a buffer lifting unit, a telescopic unit, and a tray component. The tray support bracket is slidably mounted on the main frame. The buffer lifting unit is used to drive the tray support bracket to slide back and forth in the vertical direction. The telescopic unit is disposed between the tray support bracket and the tray component and is used to drive the tray component away from or towards the tray located in the turnover area. The end of the tray component is the support end.

[0015] In one optional embodiment, the lifting and placing mechanism includes a lifting frame, a lifting platform, and a lifting drive assembly. The lifting frame is connected to the lower part of the main frame, the lifting platform is slidably disposed on the lifting frame, the lifting platform is used to stack trays containing products, and the lifting drive assembly is used to drive the lifting platform to slide back and forth in the vertical direction.

[0016] In one optional embodiment, the lifting drive assembly includes a rotating screw and a rotating unit. The rotating screw is rotatably mounted on the lifting frame and is threadedly connected to at least a portion of the lifting platform. The rotating unit is mounted on the lifting frame, and its drive end is connected to the rotating screw to drive the rotating screw to rotate.

[0017] In one optional embodiment, the buffer mechanism includes a buffer hopper and a limiting component. The buffer hopper is located above the turnover area, and the bottom of the buffer hopper is provided with an inlet / outlet opening for the pallet to pass through. The limiting component has a first state and a second state. When the limiting component is in the first state, the limiting component blocks the inlet / outlet opening. When the limiting component is in the second state, the limiting component avoids the inlet / outlet opening.

[0018] In an optional embodiment, the limiting component includes a side abutment and a limiting unit. The limiting unit is disposed on the main frame and / or the buffer hopper. The side abutment is disposed on the drive end of the limiting unit. The limiting unit is used to drive the side abutment away from or towards the pallet in the buffer hopper. A limiting protrusion is also provided on the side of the side abutment.

[0019] The technical advantages of this invention compared to existing technologies are as follows: A transport mechanism is provided on the main frame, which can transport pallets containing products from the turnover area to the loading area and empty pallets from the loading area back to the turnover area. Simultaneously, a lifting and placing mechanism is provided below the turnover area to stack pallets containing products. A buffer mechanism 6 is provided above the turnover area to accommodate empty pallets. Compared to existing loading devices, by arranging the lifting and placing mechanism, the turnover area on the main frame, and the buffer mechanism vertically, the horizontal space occupied by the equipment is reduced. Furthermore, the pallet-dividing mechanism enables circumferential transport of pallets within the turnover area, making the overall structure of the loading device simpler and more compact, while also improving loading efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the feeding device provided in an embodiment of the present utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the feeding device provided in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the first transport section used in this embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the disc-dividing mechanism used in this embodiment of the utility model;

[0025] Figure 5 yes Figure 4 Enlarged structural diagram at point A;

[0026] Figure 6 This is a schematic diagram of the lifting and placing mechanism used in this embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the caching mechanism used in an embodiment of this utility model;

[0028] Figure 8 yes Figure 7 A magnified structural diagram at point B in the middle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Main frame; 11. Turnover area; 12. Loading area; 2. Lifting and placing mechanism; 21. Lifting frame; 22. Lifting platform; 23. Lifting drive assembly; 231. Rotating screw; 232. Rotating unit; 3. Transportation mechanism; 31. First transportation section; 311. First conveyor belt group; 3111. First pulley; 3112. Second pulley; 3113. Conveyor belt; 3114. Power unit; 32. Second transportation section; 32 1. Second conveyor belt assembly; 4. Dispensing mechanism; 41. Telescopic support assembly; 411. Dispensing bracket; 412. Buffer lifting unit; 413. Telescopic unit; 414. Dispensing component; 415. Insertion part; 5. Spacing adjustment assembly; 51. Transport slider; 52. Spacing drive unit; 6. Buffer mechanism; 61. Buffer hopper; 62. Limiting assembly; 621. Side abutment; 622. Limiting protrusion; 623. Limiting unit; 7. Pallet. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this embodiment, according to Figure 1 The XYZ rectangular coordinate system established in the text is defined as follows: the side located in the positive direction of the X-axis is defined as front, and the side located in the negative direction of the X-axis is defined as back; the side located in the positive direction of the Y-axis is defined as left, and the side located in the negative direction of the Y-axis is defined as right; the side located in the positive direction of the Z-axis is defined as up, and the side located in the negative direction of the Z-axis is defined as down.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] Please refer to Figure 1 and Figure 2As shown in the embodiment of this utility model, a feeding device is provided, which includes a main frame 1, a lifting and placing mechanism 2, a buffer mechanism 6, a transport mechanism 3, and a tray-separating mechanism 4. The main frame 1 has a feeding area 12 and a turnover area 11. The lifting and placing mechanism 2 is located below the turnover area 11 and is used to stack trays containing products and drive the trays containing products vertically away from or towards the turnover area 11 on the main frame 1. The buffer mechanism 6 is located above the turnover area 11 and is used to accommodate empty trays. The transport mechanism 3 is disposed on the main frame 1 and is used to transport trays containing products from the turnover area 11 to the feeding area 12, and also to transport empty trays from the feeding area 12 back to the turnover area 11. The tray-separating mechanism 4 is disposed on the main frame 1 and is used to separate one of the trays on the lifting and placing mechanism 2 from the other trays and place the separated trays on the transport mechanism 3, and also to transport the empty trays on the transport mechanism 3 to the buffer mechanism 6.

[0038] Specifically, the main frame 1 refers to a supporting component with a certain volume. In this application, the main frame 1 can be composed of two plate-shaped components spaced apart from each other, with a supporting component connecting the two plate-shaped components. The lifting and placing mechanism 2 refers to a component that can place the pallet and drive the pallet to move vertically. The buffer mechanism 6 refers to a receiving structure with a certain accommodating space. The buffer mechanism 6 can be composed of multiple plates, or it can be composed of multiple parallel columns arranged in a certain order. The transport mechanism 3 refers to a component that can transport the pallet. The transport mechanism 3 can adopt conveyor belt transport, robotic arm transport, or chain conveyor belt transport, etc. The pallet separating mechanism 4 refers to a component or assembly that can separate the pallet from other stacked pallets. The pallet separating mechanism 4 can fix the pallet by clamping, supporting, or adsorbing, and then make the pallet move relative to other pallets, thereby separating the pallet from other stacked pallets.

[0039] The working process of this feeding device is as follows:

[0040] During the loading process, pallets containing products can be stacked on the lifting and placing mechanism 2, which transports them to the turnover area 11. Then, the pallet-separating mechanism 4 separates one of the product-containing pallets from the stacked pallets and places it on the transport mechanism 3. The transport mechanism 3 transports the product-containing pallet to the loading area 12 for subsequent processes to retrieve the products. After all the products on the pallet have been removed, leaving an empty pallet, the transport mechanism 3 returns the empty pallet to the turnover area 11, and finally, the pallet-separating mechanism 4 transports it to the buffer mechanism 6 for storage.

[0041] The feeding device provided in this embodiment of the utility model has a transport mechanism 3 on the main frame 1. The transport mechanism 3 can transport pallets containing products from the turnover area 11 to the feeding area 12, and empty pallets from the feeding area 12 back to the turnover area 11. Simultaneously, a lifting and placing mechanism 2 is provided in the lower area of ​​the turnover area 11 to stack pallets containing products. A buffer mechanism 6 is provided in the upper area of ​​the turnover area 11 to accommodate empty pallets. Compared with existing feeding devices, by arranging the lifting and placing mechanism 2, the turnover area 11 on the main frame 1, and the buffer mechanism 6 vertically, the horizontal space occupied by the device is reduced. Furthermore, the pallet-separating mechanism 4 enables circumferential transport of pallets within the turnover area 11, making the overall structure of the feeding device simpler and more compact, while also improving feeding efficiency.

[0042] In one embodiment, see Figure 1 and Figure 3 The transport mechanism 3 includes a first transport section 31 and a second transport section 32 arranged sequentially along the transport direction. The first transport section 31 includes two parallel first conveyor belt groups 311, and the main frame 1 is also provided with a spacing adjustment component 5 for adjusting the spacing between the two first conveyor belt groups 311.

[0043] Specifically, the first transport section 31 and the second transport section 32 both refer to the parts of the transport mechanism 3 that have a certain length in their own transport direction. The first conveyor belt group 311 refers to a component that realizes automated transport of materials or products through a continuously moving conveyor belt 3113. The spacing adjustment component 5 refers to a part or component that can adjust the distance between two objects. The spacing adjustment component 5 can be a whole part or a component. The spacing drive unit 52 can be set between the two first conveyor belt groups 311 to realize simultaneous adjustment of the two first conveyor belt groups 311. The spacing adjustment component 5 can also be divided into two parts to adjust the two first conveyor belt groups 311 separately.

[0044] In this embodiment, the transport mechanism 3 is divided into a first transport section 31 and a second transport section 32. The first transport section 31 is located in the turnover area 11, and the second transport section 32 is located in the loading area 12. The first transport section 31 includes two parallel first conveyor belt groups 311. When transporting pallets, the two first conveyor belt groups 311 support the pallets on both sides respectively. Furthermore, the main frame 1 is also provided with a spacing adjustment component 5 for adjusting the distance between the two first conveyor belt groups 311. When the lifting and placing mechanism 2 transports the stacked pallets to the turnover area 11, the spacing adjustment component 5 adjusts the distance between the two first conveyor belt groups 311 to be greater than the width of the pallet, allowing the pallet to pass between the two first conveyor belt groups 311. After the tray separating mechanism 4 separates one of the pallets from the other pallets, the lifting and placing mechanism 2 drives the other pallets to descend away from the turnover area 11. At this time, the spacing adjustment component 5 reduces the distance between the two first conveyor belt groups 311, making the distance between the two first conveyor belt groups 311 less than the width of the pallet. Finally, the tray separating mechanism 4 can place the separated pallet on the first conveyor belt group 311, and transport the pallet containing the product through the first conveyor belt group 311.

[0045] By dividing the first transport section 31 into two first conveyor belt groups 311, and by setting a spacing adjustment component 5 on the main frame 1 for adjusting the spacing between the two first conveyor belt groups 311, the separation and transport of pallets are made more convenient and faster through the cooperation between the spacing adjustment component 5, the tray separating mechanism 4 and the lifting and placing mechanism 2.

[0046] In one embodiment, see Figure 3 The spacing adjustment component 5 includes two transport sliders 51 spaced apart from each other. Two first conveyor belt groups 311 are respectively disposed on the two transport sliders 51, and a spacing drive unit 52 is disposed between each transport slider 51 and the main frame 1. The spacing drive unit 52 is used to drive the transport slider 51 away from or towards the other transport slider 51. Specifically, the transport slider 51 refers to a component with a certain volume, and the transport slider 51 can have a certain length along the transport direction of the transport mechanism 3. The spacing drive unit 52 refers to a component that can drive an object to move in a straight line. The spacing drive unit 52 can be a cylinder, a hydraulic cylinder, or an electric push rod, etc. In this embodiment, by disposing the two first conveyor belt groups 311 on the two transport sliders 51 respectively, and by disposing the spacing drive unit 52 between each transport slider 51 and the main frame 1, the distance between the two transport sliders 51 can be adjusted by driving the transport slider 51 away from or towards the other transport slider 51 through the spacing drive unit 52, thereby achieving the adjustment of the distance between the two first conveyor belt groups 311.

[0047] In an optional embodiment, please refer to Figure 3 Each transport slider 51 is equipped with a limit stop, which is located on the outside of the first conveyor belt group 311. In this embodiment, by setting the limit stop, the pallet can be limited during the transport of the pallet by the first conveyor belt group 311, making the transport of the pallet more stable and improving the stability of the pallet loading process.

[0048] In one embodiment, see Figure 3 The first conveyor belt assembly 311 includes a first pulley 3111, a second pulley 3112, a conveyor belt 3113, and a power unit 3114. The first pulley 3111 and the second pulley 3112 are spaced apart on the transport slider 51. The conveyor belt 3113 is fitted over the first pulley 3111 and the second pulley 3112. The power unit 3114 drives either the first pulley 3111 or the second pulley 3112 to rotate. Specifically, the first pulley 3111 and the second pulley 3112 are both wheel-shaped components with gears of a certain diameter, and both can be rotatably mounted on the transport slider 51 via a rotating shaft. The conveyor belt 3113 is a belt-shaped component of a certain length, and the conveyor belt 3113 is typically connected end-to-end to form a ring structure. The power unit 3114 is a component or assembly capable of outputting torque, and can be an electric motor or a hydraulic motor, etc. In this embodiment, the first pulley 3111 and the second pulley 3112 are spaced apart on the transport slider 51, and the conveyor belt 3113 is fitted over the first pulley 3111 and the second pulley 3112. When pallet transportation is required, the pallet is simply placed on the conveyor belt 3113, and then the power unit 3114 drives one of the first pulley 3111 or the second pulley 3112 to rotate, thus achieving pallet transportation, making pallet transportation more stable and precise.

[0049] In an optional embodiment, please refer to Figure 2 The second transport section 32 may include two parallel and spaced-apart second conveyor belt groups 321, both of which are mounted on the main frame 1. The structure of the second conveyor belt group 321 may be the same as that of the first conveyor belt group 311, and will not be described in detail here.

[0050] In one embodiment, see Figure 2The tray-separating mechanism 4 includes two sets of telescopic support groups 41 located on both sides of the turnover area 11. Each telescopic support group 41 has a support end. When the lifting and placing mechanism 2 transports a tray containing products to the turnover area 11, the support end abuts against the bottom surface of the uppermost tray to separate it from other trays. Specifically, the telescopic support group 41 refers to a component or assembly with a movable support end. In this embodiment, by providing telescopic support groups 41 on both sides of the turnover area 11, the support end abuts against the bottom surface of the uppermost tray when the lifting and placing mechanism 2 transports the tray containing products to the turnover area 11, thus separating the tray from other trays. A clearance structure matching the support end can also be provided on the bottom surface of the tray. When multiple trays are stacked, the support end of the telescopic support group 41 can still be inserted between two trays through the clearance structure and abut against the bottom surface of the uppermost tray, thereby separating the tray from other trays. Meanwhile, telescopic support groups 41 are provided on both sides of the turnover area 11, which can support the pallet on both sides, making the support of the pallet by the telescopic support groups 41 more stable.

[0051] It should be noted that there can be multiple telescopic support groups 41 set on the same side of the turnover area 11, so that there can be multiple support points on the same side of the pallet when the pallet is separated.

[0052] In one embodiment, see Figure 4 The telescopic support assembly 41 includes a tray support 411, a buffer lifting unit 412, a telescopic unit 413, and a tray component 414. The tray support 411 is slidably mounted on the main frame 1. The buffer lifting unit 412 is used to drive the tray support 411 to slide back and forth in the vertical direction. The telescopic unit 413 is disposed between the tray support 411 and the tray component 414 and is used to drive the tray component 414 away from or closer to the tray located in the turnover area 11. The end of the tray component 414 is a support end.

[0053] Specifically, the tray support 411 refers to a component with a certain volume, which can be slidably connected to the main frame 1 via a slide rail slider structure. The buffer lifting unit 412 refers to a component or assembly that can drive an object to move in a straight line; the buffer lifting unit 412 can be a cylinder, hydraulic cylinder, or electric push rod, etc. The drive end of the buffer lifting unit 412 is connected to the tray support 411. The telescopic unit 413 refers to a component or assembly that can drive an object to move in a straight line; the telescopic unit 413 can be a cylinder, hydraulic cylinder, or electric push rod, etc. The tray component 414 refers to a component with a certain volume; the tray component 414 can be block-shaped or plate-shaped, etc., and can be installed on the drive end of the telescopic unit 413.

[0054] In this embodiment, the tray-splitting bracket 411 is slidably mounted on the main frame 1, and the tray-splitting bracket 411 is driven to slide back and forth vertically by the buffer lifting unit 412. A telescopic unit 413 is provided between the tray-splitting bracket 411 and the tray-splitting component 414. When it is necessary to separate the pallets on the lifting and placing mechanism 2, the telescopic unit 413 drives the tray-splitting component 414 to insert into the bottom of the pallet located at the top of the pallet stack. Then, the lifting and placing mechanism 2 drives the other pallets to descend, thus separating the pallets from the others. Finally, after the lifting and placing mechanism 2 descends, the two first conveyor belt groups 311 approach each other, and the telescopic unit 413 can drive the tray-splitting component 414 to reset, allowing the pallets to be placed on the two first conveyor belt groups 311. Furthermore, after the transport mechanism 3 transports empty pallets to the turnover area 11, the telescopic unit 413 drives the tray-splitting component 414 to insert into the bottom of the empty pallet. Then, the buffer lifting unit 412 drives the tray-splitting bracket 411 to approach the buffer mechanism 6 vertically, transporting the empty pallets into the buffer mechanism 6. Furthermore, after the delivery is completed, the buffer lifting unit 412 drives the tray support 411 to reset, making the separation of the trays and the buffering of empty trays more convenient.

[0055] In an optional embodiment, please refer to Figure 5 The tray divider 414 includes a tray divider plate, and the end of the tray divider plate is provided with an insertion part 415 with a thickness less than that of the tray divider plate, making it easier to insert the tray divider plate between two trays.

[0056] In one embodiment, see Figure 6 The lifting and placing mechanism 2 includes a lifting frame 21, a lifting platform 22, and a lifting drive assembly 23. The lifting frame 21 is connected to the lower part of the main frame 1. The lifting platform 22 is slidably mounted on the lifting frame 21 and is used to stack trays containing products. The lifting drive assembly 23 drives the lifting platform 22 to slide back and forth vertically. Specifically, the lifting frame 21 refers to a component with a certain volume, which can be block-shaped, plate-shaped, or column-shaped. The lifting platform 22 refers to a plate-shaped component with a certain area. The lifting platform 22 is generally arranged horizontally and can be slidably connected to the lifting frame 21 through a sliding structure, such as a slider-rail structure. The lifting drive assembly 23 refers to a component or assembly that drives an object to move in a straight line. The lifting drive assembly 23 can be a cylinder, hydraulic cylinder, or electric push rod, etc. The lifting drive assembly 23 can also be a lead screw slider structure or a cam slider structure, etc. In this embodiment, the trays containing products can be stacked on the lifting platform 22. When the position of the trays needs to be adjusted, the lifting platform 22 can be driven to slide vertically by the lifting drive component 23, making it more convenient to adjust the position of the trays containing products.

[0057] In one embodiment, see Figure 6 The lifting drive assembly 23 includes a rotating screw 231 and a rotating unit 232. The rotating screw 231 is rotatably mounted on the lifting frame 21 and is at least partially threadedly connected to the lifting platform 22. The rotating unit 232 is mounted on the lifting frame 21, and its driving end is connected to the rotating screw 231 to drive the rotating screw 231 to rotate. Specifically, the rotating screw 231 is a rod-shaped component of a certain length, and its outer circumference is also provided with threads, which can achieve a threaded connection with the lifting platform 22. The rotating unit 232 is a component or assembly that can output torque, and can be a motor or a hydraulic motor, etc. In this embodiment, the rotating screw 231 is rotatably mounted on the lifting frame 21, and the rotating screw 231 is at least partially threadedly connected to the lifting platform 22. When the position of the lifting platform 22 needs to be adjusted, the rotating unit 232 can drive the rotating screw 231 to rotate, thereby driving the lifting platform 22 to slide back and forth in the vertical direction through the screw thread.

[0058] In one embodiment, see Figure 7 The buffer mechanism 6 includes a buffer hopper 61 and a limiting component 62. The buffer hopper 61 is located above the turnover area 11. The bottom of the buffer hopper 61 has an opening for pallets to pass through. The limiting component 62 has a first state and a second state. When the limiting component 62 is in the first state, it blocks the opening; when the limiting component 62 is in the second state, it avoids the opening. Specifically, the buffer hopper 61 refers to a component with a certain capacity. The buffer hopper 61 can be formed by multiple plates or by multiple parallel columns arranged in a certain order. The limiting component 62 refers to a component or assembly that can block objects. In this embodiment, the buffer hopper 61 is located above the turnover area 11, and the bottom of the buffer hopper 61 has an opening for pallets to pass through. When an empty pallet needs to be placed into the buffer hopper 61, the limiting component 62 can be in the second state. In this state, the limiting component 62 can avoid the inlet / outlet opening, allowing the pallet to enter the buffer hopper 61 through the inlet / outlet opening. After the pallet enters the buffer hopper 61, the limiting component 62 is in the first state, blocking the inlet / outlet opening. The limiting component 62 can prevent the pallet from falling out of the buffer mechanism 6, making pallet buffering more convenient.

[0059] In one embodiment, see Figure 8The limiting component 62 includes a side abutment 621 and a limiting unit 623. The limiting unit 623 is disposed on the main frame 1 and / or the buffer hopper 61. The side abutment 621 is disposed on the driving end of the limiting unit 623. The limiting unit 623 is used to drive the side abutment 621 away from or towards the pallet in the buffer hopper 61. A limiting protrusion 622 is also provided on the side of the side abutment 621. Specifically, the side abutment 621 refers to a component with a certain volume. The side abutment 621 can be plate-shaped, block-shaped, or column-shaped, etc. The limiting unit 623 refers to a component that can drive an object to move in a straight line. The limiting unit 623 can be a cylinder, hydraulic cylinder, or electric push rod, etc. The limiting protrusion 622 refers to a component with a certain height. The limiting protrusion 622 can be an integral structure with the side abutment 621, or it can be an independent component, installed onto the side abutment 621 by means of plugging, snapping, or fastener connection. In this embodiment, the limiting unit 623 can be set on the main frame 1 and / or the buffer hopper 61, and then the side abutment 621 can be set on the drive end of the limiting unit 623. When an empty pallet needs to be placed into the buffer hopper 61, the limiting unit 623 can drive the side abutment 621 away from the inlet / outlet opening, allowing the pallet to pass smoothly through the opening. After the pallet enters the buffer hopper 61, the limiting unit 623 can drive the side abutment 621 to abut against the side of the pallet, while the limiting protrusion 622 abuts against the bottom surface of the pallet located at the bottom of the buffer hopper 61, making the entry and storage of the pallet more convenient.

[0060] The above description is merely a preferred embodiment of the present utility model, and only specifically describes the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A feeding device, characterized in that, include: A main frame, which has a loading area and a turnover area; A lifting and placing mechanism, located below the turnover area, is used to stack trays containing products and drive the trays containing products vertically away from or towards the turnover area on the main frame. A buffer unit, located above the turnover area, is used to accommodate empty trays; A transport mechanism, mounted on the main frame, is used to transport pallets containing products from the turnover area to the loading area, and also to transport empty pallets from the loading area back to the turnover area; and The tray-separating mechanism is installed on the main frame. The tray-separating mechanism is used to separate one of the trays on the lifting and placing mechanism from the other trays and place the separated tray on the transport mechanism. The tray-separating mechanism is also used to transport the trays above the transport mechanism to the buffer mechanism.

2. The feeding device as described in claim 1, characterized in that, The transport mechanism includes a first transport section and a second transport section. The first transport section includes two parallel first conveyor belt groups. The main frame is also equipped with a spacing adjustment component for adjusting the distance between the two first conveyor belt groups.

3. The feeding device as described in claim 2, characterized in that, The spacing adjustment assembly includes two transport sliders spaced apart from each other, two first conveyor belt groups are respectively disposed on the two transport sliders, and a spacing driving unit is disposed between each transport slider and the main frame. The spacing driving unit is used to drive the transport slider away from or towards the other transport slider.

4. The feeding device as described in claim 3, characterized in that, The first conveyor belt assembly includes a first pulley, a second pulley, a conveyor belt, and a power unit. The first pulley and the second pulley are spaced apart on the transport slider. The conveyor belt is fitted over the first pulley and the second pulley. The power unit is used to drive the first pulley or the second pulley to rotate.

5. The feeding device as described in claim 2, characterized in that, The tray-separating mechanism includes two sets of telescopic support groups located on both sides of the turnover area. Each telescopic support group has a support end. When the lifting and placing mechanism transports the tray containing the product to the turnover area, the support end is used to abut against the bottom surface of the uppermost tray to separate the tray from the other trays.

6. The feeding device as described in claim 5, characterized in that, The telescopic support assembly includes a tray support bracket, a buffer lifting unit, a telescopic unit, and a tray component. The tray support bracket is slidably mounted on the main frame. The buffer lifting unit is used to drive the tray support bracket to slide back and forth in the vertical direction. The telescopic unit is disposed between the tray support bracket and the tray component and is used to drive the tray component to move away from or towards the tray located in the turnover area. The end of the tray component is the support end.

7. The feeding device as described in claim 1, characterized in that, The lifting and placing mechanism includes a lifting frame, a lifting platform, and a lifting drive assembly. The lifting frame is connected to the lower part of the main frame, and the lifting platform is slidably disposed on the lifting frame. The lifting platform is used to stack trays containing products, and the lifting drive assembly is used to drive the lifting platform to slide back and forth in the vertical direction.

8. The feeding device as described in claim 7, characterized in that, The lifting drive assembly includes a rotating screw and a rotating unit. The rotating screw is rotatably mounted on the lifting frame and is threadedly connected to at least part of the lifting platform. The rotating unit is mounted on the lifting frame, and the driving end of the rotating unit is connected to the rotating screw to drive the rotating screw to rotate.

9. The feeding device as described in claim 1, characterized in that, The buffer mechanism includes a buffer hopper and a limiting component. The buffer hopper is located above the turnover area. The bottom of the buffer hopper is provided with an inlet and outlet opening for the pallet to pass through. The limiting component has a first state and a second state. When the limiting component is in the first state, the limiting component blocks the inlet and outlet opening. When the limiting component is in the second state, the limiting component avoids the inlet and outlet opening.

10. The feeding device as described in claim 9, characterized in that, The limiting component includes a side abutment and a limiting unit. The limiting unit is disposed on the main frame and / or the buffer hopper. The side abutment is disposed on the driving end of the limiting unit. The limiting unit is used to drive the side abutment away from or towards the pallet in the buffer hopper. A limiting protrusion is also provided on the side of the side abutment.

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