Tray loading and unloading mechanism

Abstract

The present invention discloses a tray loading and unloading mechanism. The tray loading and unloading mechanism comprises: a fixed plate, and an upper runner component, a lower runner component and an opening and closing connecting rod mechanism installed on the fixed plate, the upper runner component and the lower runner component both extend along a first direction and are spaced apart in a second direction, the opening and closing connecting rod mechanism and the upper runner component are arranged along the first direction, and the opening and closing connecting rod mechanism is directly opposite to a part of the lower runner component, and the opening and closing connecting rod mechanism is used to carry a full tray from the upper runner component, and to transfer an empty tray after taking the material to the lower runner component. The tray loading and unloading mechanism realizes the movement and material taking of a full tray through the upper runner component cooperating with the opening and closing connecting rod mechanism, and realizes the pushing out and recovery of an empty tray through the lower runner component, thereby reducing the travel path of the tray and the size of the runner, thereby reducing the volume of the tray loading and unloading mechanism, and meeting the requirements of miniaturized design.

Description

Technical Field

[0001] The invention relates to the field of automated production equipment, and in particular to a tray loading and unloading mechanism. Background Art

[0002] The traditional tray loading and unloading mechanism is a single-layer flow channel. A full tray (product carrier) is placed on the single-layer flow channel and flows directly from the initial position to the working position. After the products are taken away one by one, the empty tray flows from the working position to the end position to complete automatic loading and unloading. In this loading and unloading form, the movement path of the tray in a single direction is large, which leads to a large size of the tray loading and unloading mechanism. Summary of the invention

[0003] Therefore, an object of the present invention is to provide a tray loading and unloading mechanism that can achieve a small stroke and is miniaturized.

[0004] The present invention provides a material tray loading and unloading mechanism, comprising: a fixed plate, and an upper runner component, a lower runner component and an opening and closing connecting rod mechanism installed on the fixed plate, the upper runner component and the lower runner component both extend along a first direction and are arranged at intervals in a second direction, the opening and closing connecting rod mechanism and the upper runner component are arranged along the first direction, and the opening and closing connecting rod mechanism is directly opposite to a part of the lower runner component, and the first direction is perpendicular to the second direction;

[0005] The opening and closing connecting rod mechanism is used to carry the full material tray from the upper runner component and transfer the empty material tray after taking out the material to the lower runner component.

[0006] In some embodiments, the tray loading and unloading mechanism also includes an upper hook mechanism and a lower hook mechanism installed on the fixed plate, the upper hook mechanism is used to hook the full tray from the upper flow channel component to the opening and closing connecting rod mechanism; the lower hook mechanism is used to push the empty tray out of the lower flow channel component.

[0007] In some embodiments, the upper flow channel component includes an upper support plate and an L-shaped limit block, and the L-shaped limit block is distributed in parallel on the surface of the upper support plate. The upper support plate and the L-shaped limit block jointly define an upper flow channel for the full material tray to move, and the length of the upper support plate in the first direction is smaller than the length of the lower flow channel component in the first direction.

[0008] In some embodiments, a guiding slope is provided at the end of the L-shaped limit block, and the guiding slope enlarges the end opening of the upper flow channel.

[0009] In some embodiments, the lower runner component includes a first portion and a second portion, the second portion is close to the opening and closing link mechanism, and a height of the first portion in the second direction is smaller than a height of the second portion in the second direction.

[0010] In some embodiments, the opening and closing linkage mechanism includes a first pallet assembly and a second pallet assembly, the first pallet assembly includes a first movable pallet and a first fixed pallet, and the first movable pallet is slidably disposed on the first fixed pallet in the direction of the second pallet assembly; the second pallet assembly includes a second movable pallet and a second fixed pallet, and the second movable pallet is slidably disposed on the second fixed pallet in the direction of the first pallet assembly;

[0011] When the first movable pallet and the second movable pallet are combined, they are used to carry the full tray; when the first movable pallet and the second movable pallet are opened, they are used to drop the empty tray to the lower runner component.

[0012] In some embodiments, the first pallet assembly further includes a first slide rail, and the first movable pallet is slidably disposed on the first fixed pallet via the first slide rail; the second pallet assembly further includes a second slide rail, and the second movable pallet is slidably disposed on the second fixed pallet via the second slide rail.

[0013] In some embodiments, the first support plate assembly also includes a bearing support member, which includes a limit bearing, a sliding rod, a spring and a mounting block, the mounting block is provided with a mounting groove facing the second support plate assembly, the limit bearing is installed at one end of the sliding rod, and the other end of the sliding rod is arranged in the mounting groove through the spring.

[0014] In some embodiments, the upper hook mechanism includes an upper hook mounting frame, a third slide rail, a second cylinder and a first movable push block assembly, the upper hook mounting frame is slidably set on the third slide rail along the first direction, the third slide rail is installed on the outer wall of the fixed plate, the second cylinder is connected to the upper hook mounting frame and is used to drive the upper hook mounting frame to move, the first movable push block assembly is installed on the upper hook mounting frame, and the first movable push block assembly is used to push the full material tray from the upper runner component to the opening and closing connecting rod mechanism; wherein, the first movable push block assembly is located directly above the upper runner component.

[0015] In some embodiments, the upper hook mechanism further includes a hydraulic buffer disposed along the first direction corresponding to the hook mounting frame, and the hydraulic buffer is used to buffer the movement of the upper hook mounting frame in the first direction.

[0016] In some embodiments, the lower hook mechanism includes a lower hook mounting frame, a fourth slide rail, a third cylinder, a second hook and a second movable push block assembly, the lower hook mounting frame is slidably arranged on the fourth slide rail along the first direction, the fourth slide rail is installed on the outer wall of the fixed plate, the third cylinder is connected to the lower hook mounting frame and is used to drive the lower hook mounting frame to move, the second hook and the second movable push block assembly are installed on the lower hook mounting frame, the second hook is used to push away the empty material tray located below the opening and closing connecting rod mechanism, and the second movable push block assembly is used to push the empty material tray out of the lower runner component; wherein, the second hook and the second movable push block assembly are located directly below the lower runner component, and the bending structure of the second hook is facing the lower runner component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 A schematic diagram of the structure of the tray loading and unloading mechanism provided by the present invention;

[0019] Figure 2 An exploded schematic diagram of the tray loading and unloading mechanism provided by the present invention;

[0020] Figure 3 A schematic diagram of the structure of the upper flow channel component and the lower flow channel component provided by the present invention;

[0021] Figure 4 A side view of the upper flow channel component, the lower flow channel component and the opening and closing connecting rod mechanism provided by the present invention;

[0022] Figure 5 An exploded schematic diagram of the opening and closing connecting rod mechanism provided by the present invention;

[0023] Figure 6 A partial cross-sectional view of a bearing support member provided by the present invention;

[0024] Figure 7 A schematic diagram of the structure of the upper hook mechanism provided by the present invention;

[0025] Figure 8 An exploded schematic diagram of a first movable push block assembly provided by the present invention;

[0026] Fig. 9 A schematic diagram of the structure of the lower hook mechanism provided by the present invention;

[0027] Fig.10 A partial cross-sectional view of a second movable push block assembly provided by the present invention. DETAILED DESCRIPTION

[0028] In order to better understand the present invention, various aspects of the present invention will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of embodiments of the present invention, and do not limit the scope of the present invention in any way. It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature.

[0029] It should also be understood that the terms “comprises,” “including,” “having,” “includes” and / or “comprising,” when used in this specification, indicate the presence of stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0030] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0031] In order to facilitate the understanding of this application, Figure 1 , Figure 2 , Figure 5 , Figure 7 ,as well as Fig. 9 As shown, throughout the text, the first direction can be defined as the front-to-back direction, and the second direction can be defined as the up-to-down direction. The front-to-back direction and the up-to-down direction in each figure show the spatial relationship of the components in the tray loading and unloading mechanism and the moving direction of the full tray and the empty tray. For example, the front-to-back direction is the flow direction of the upper and lower runner components in the tray loading and unloading mechanism, as well as the moving direction of the full tray or the empty tray; the up-to-down direction is the arrangement position of the upper and lower runner components and the moving direction of the empty tray to the lower runner component. The same concept will be used throughout the disclosure to describe the spatial relationship of the components in the clamping device.

[0032] For details, please refer to Figure 1 and Figure 2As shown, an embodiment of the present invention provides a tray loading and unloading mechanism, including a fixed plate 60, and an upper runner component 10, a lower runner component 20 and an opening and closing connecting rod mechanism 30 installed on the fixed plate 60, the upper runner component 10 and the lower runner component 20 both extend in the first direction (front-to-back direction) and are spaced apart in the second direction (up-down direction), the opening and closing connecting rod mechanism 30 is arranged on the side of the upper runner component 10 along the first direction, and the opening and closing connecting rod mechanism 30 is directly opposite to a part of the lower runner component 20, that is, the opening and closing connecting rod mechanism 30 and the lower runner component 20 partially overlap in the second direction. Among them, the first direction and the second direction are perpendicular. The tray loading and unloading mechanism realizes the movement and material removal of the full tray through the upper runner component 10 cooperating with the opening and closing connecting rod mechanism 30, and realizes the pushing out and recovery of the empty tray through the lower runner component 20, which reduces the travel path of the tray and the size of the runner, thereby reducing the volume of the tray loading and unloading mechanism, meeting the requirements of miniaturization design.

[0033] It can be understood that both the upper runner member 10 and the lower runner member 20 extend in the first direction, that is, the runners of the upper runner member 10 and the lower runner member 20 are parallel to the first direction. Preferably, the upper runner member 10 and the lower runner member 20 are arranged in parallel and spaced apart in the second direction, and the upper runner member 10 and the lower runner member 20 are arranged overlappingly in the second direction, that is, the upper runner member 10 and the lower runner member 20 are kept spaced apart and parallel in the second direction, and are still in an overlapping state, so that it is convenient for the material tray to be accurately transferred from the upper runner member 10 to the lower runner member 20 through the opening and closing connecting rod mechanism, so that the spatial state of the material tray remains unchanged.

[0034] The opening and closing connecting rod mechanism 30 is used to carry the full tray from the upper runner component 10, and to transfer the empty tray after taking out the materials to the lower runner component 20. It can be understood that a full tray refers to a tray filled with products, such as a tray with lenses / cover plates, and an empty tray refers to a tray after taking out the materials from the full tray. The tray loading and unloading mechanism provides a full tray filled with products through the upper runner component 10, and transfers the full tray provided by the upper runner component 10 to the opening and closing connecting rod mechanism 30. After the products on the full tray are taken away, the opening and closing connecting rod mechanism 30 transfers the empty tray to the lower runner component 20. Finally, the lower runner component 20 transfers the empty tray out of the tray loading and unloading mechanism, thereby realizing integrated material taking and recycling of trays to meet the needs of automatic loading and unloading.

[0035] In one embodiment, please refer again to Figure 1 and Figure 2As shown, the tray loading and unloading mechanism further includes an upper hook mechanism 40 and a lower hook mechanism 50, wherein the upper hook mechanism 40 is used to move a full tray on the upper runner member 10, and further transfer the full tray from the upper runner member 10 to the opening and closing connecting rod mechanism 30. The lower hook mechanism 50 is used to move an empty tray on the lower runner member 20, and further push the empty tray out of the lower runner member 20. The operating process of the tray loading and unloading mechanism is to provide a full tray to the upper runner component 10, the upper hook mechanism 40 drives the full tray to move on the upper runner component 10, and pushes the full tray from the upper runner component 10 to the opening and closing connecting rod mechanism 30. After the products on the full tray are taken out, the opening and closing connecting rod mechanism 30 transfers the empty tray to the lower runner component 20, and then the lower hook mechanism 50 drives the empty tray to move on the lower runner component 20, and pushes the empty tray from the lower runner component 20, thereby realizing a complete loading and unloading action.

[0036] Reference again Figure 1 As shown, preferably, the tray loading and unloading mechanism includes two fixed plates 60 arranged in parallel, the upper runner component 10, the lower runner component 20 and the opening and closing connecting rod mechanism 30 are all installed on the upper end of the fixed plate 60, and the upper hook mechanism 40 and the lower hook mechanism 50 are installed on the outer side wall of the fixed plate 60. The upper runner component 10, the lower runner component 20 and the opening and closing connecting rod mechanism 30 are installed using two fixed plates 60 arranged in parallel to ensure the installation accuracy and convenience of the upper runner component 10 and the lower runner component 20 in the second direction. And further, the upper hook mechanism 40 and the lower hook mechanism 50 are installed on the outer side wall of the fixed plate 60, so that the hook mechanism is closer to the upper runner component 10 and the lower runner component 20, reducing the volume of the tray loading and unloading mechanism.

[0037] In one embodiment, if Figure 3 As shown, the upper flow channel member 10 includes an upper support plate 11 and an L-shaped stopper 12. The L-shaped stopper 12 is parallel to the surface of the upper support plate 11. The upper support plate 11 and the L-shaped stopper 12 jointly define an upper flow channel 13 for the full material tray to move. Specifically, the L-shaped stopper 12 is inverted on the surface of the upper support plate 11, so that the upper support plate 11 and the L-shaped stopper 12 are buckled to form a "C" shape, so that the full material tray will not jump when moving on the surface of the upper support plate 11, ensuring that the product in the full material tray is always in the initial position, preventing the product from being offset, and thus affecting the material removal. Defining the upper flow channel 13 also facilitates the smooth flow of the full material tray.

[0038] In a preferred embodiment, the length of the upper support plate 11 in the first direction is smaller than the length of the lower flow channel member 20 in the first direction, thereby reducing the usage of the upper support plate 11 and providing space for installing the equipment opening and closing connecting rod mechanism 30.

[0039] In a preferred embodiment, a guide slope 121 is provided at the end of the L-shaped limit block 12, and the guide slope 121 enlarges the end opening of the upper flow channel 13, so as to facilitate the transfer of the full material tray to the upper flow channel member 10. It should be noted that the full material tray is transferred to the upper flow channel member 10, generally, it is moved to the upper support plate 11 after being aligned with the upper flow channel 13, and the guide slope 121 is provided to facilitate the full material tray to move to the upper support plate 11, that is, the full material tray can be guided to move to the upper support plate 11.

[0040] For easier understanding, please refer to Figure 4 , Figure 4 The figure shows the functions of the upper runner member 10, the lower runner member 20 and the opening and closing connecting rod mechanism 30 in the complete loading and unloading process. The upper runner member 10 corresponds to the full tray waiting position A, the opening and closing connecting rod mechanism 30 corresponds to the full tray taking position B, the second part 22 in the lower runner member 20 corresponds to the empty tray waiting position C, and the first part 21 corresponds to the empty tray pushing position D. First, the full tray reaches the full tray waiting position A, and then reaches the full tray taking position B through the upper hook mechanism 40. The full tray takes the material at the full tray taking position and becomes an empty tray; secondly, the empty tray is transferred to the empty tray waiting position C through the opening and closing connecting rod mechanism 30, and then pushed to the empty tray pushing position D through the lower hook mechanism 50, and finally pushed out the empty tray pushing position D through the lower hook mechanism 50.

[0041] In one embodiment, the lower runner member 20 includes a first portion 21 and a second portion 22, the second portion 22 is close to the opening and closing link mechanism 30, and the height of the first portion 21 in the second direction is less than the height of the second portion 22 in the second direction. By setting the lower runner member 20 as a stepped runner member with a height difference, it is convenient to distinguish between the empty tray to-be-pushed position C and the empty tray push-out position D.

[0042] In one embodiment, if Figure 5 As shown, the opening and closing connecting rod mechanism 30 includes a first pallet assembly 31 and a second pallet assembly 32. When the first pallet assembly 31 and the second pallet assembly 32 are combined, they are used to carry full trays; when the first pallet assembly 31 and the second pallet assembly 32 are opened, they are used to drop empty trays to the lower runner member 20. It can be understood that the first pallet assembly 31 and the second pallet assembly 32 cooperate to achieve the carrying of full trays and the transfer of empty trays. The first pallet assembly 31 and the second pallet assembly 32 adopt a combined and opened cooperation mode, which is simple in structure and reduces the cost of the equipment.

[0043] Further, the first pallet assembly 31 includes a first movable pallet 311 and a first fixed pallet 312, and the first movable pallet 311 is slidably disposed on the first fixed pallet 312 in the direction of the second pallet assembly 32, that is, the sliding direction of the first movable pallet 311 is close to or away from the second pallet assembly 32. The second pallet assembly 32 includes a second movable pallet 321 and a second fixed pallet 322, and the second movable pallet 321 is slidably disposed on the second fixed pallet 322 in the direction of the first pallet assembly 31, that is, the sliding direction of the second movable pallet 321 is close to or away from the first pallet assembly 31, thereby achieving the merging or opening of the first movable pallet 311 and the second movable pallet 321.

[0044] In a preferred embodiment, the first support plate assembly 31 further includes a first slide rail 313, and the first movable support plate 311 is slidably disposed on the first fixed support plate 312 via the first slide rail 313. The first slide rail 313 is provided to facilitate sliding between the first movable support plate 311 and the first fixed support plate 312, and the first slide rail 313 further defines the moving position and moving accuracy of the first movable support plate 311 and the first fixed support plate 312 to prevent misalignment between the two. Similarly, the second support plate assembly 32 further includes a second slide rail 323, and the second movable support plate 321 is slidably disposed on the second fixed support plate 322 via the second slide rail 323.

[0045] In one embodiment, the opening and closing link mechanism 30 further includes a first connecting rod 33, a second connecting rod 34, a connecting rod 35, a fixed block 36, a linear guide rail 37 and a first cylinder 38, one end of the first connecting rod 33 is rotatably connected to the first movable support plate 311, and the other end is rotatably connected to the connecting rod 35, one end of the second connecting rod 34 is rotatably connected to the second movable support plate 321, and the other end is rotatably connected to the connecting rod 35, the connecting rod 35 is mounted on the fixed block 36, the fixed block 36 is slidably arranged on the linear guide rail 37 along the second direction, and the first cylinder 38 drives the fixed block 36 to move. It can be understood that the first connecting rod 33, the second connecting rod 34, the connecting rod 35 and the fixed block 36 form a rotatable "Y"-shaped structure, which is convenient for the rotation of the first connecting rod 33 and the second connecting rod 34. It should be noted that the first connecting rod 33 and the first movable support plate 311 are connected in a rotating manner, so that when the first connecting rod 33 is pulled downward by the fixed block 36, the first movable support plate 311 is restricted by the first slide rail 313 and the first fixed support plate 312 and can only move toward the second movable support plate 321, and finally realize the merging of the first movable support plate 311 and the second movable support plate 321; when the first connecting rod 33 is pushed upward by the fixed block 36, the first movable support plate 311 is restricted by the first slide rail 313 and the first fixed support plate 312 and can only move away from the second movable support plate 321, and finally realize the opening of the first movable support plate 311 and the second movable support plate 321. Similarly, the movement principle of the second movable support plate 321 is as above, and will not be repeated again.

[0046] In one embodiment, if Figure 5 and Figure 6 As shown, the first support plate assembly 31 also includes a bearing support member 314, which includes a limit bearing 3141, a sliding rod 3142, a spring 3143 and a mounting block 3144. The mounting block 3144 is provided with a mounting groove 3145 facing the second support plate assembly 32. The limit bearing 3141 is mounted on one end of the sliding rod 3142, and the other end of the sliding rod 3142 is arranged in the mounting groove 3145 through the spring 3143. The mounting block 3144 is fixed on the first movable support plate 311, that is, the bearing is mounted on the first movable support plate 311 through the spring 3143. The bearing is used to abut against the side of the full material tray or the empty material tray. The elastic connection method can pre-tighten the full material tray or the empty material tray, provide a certain pre-pressure, and improve the stability of the installation of the full material tray or the empty material tray.

[0047] In one embodiment, if Figure 7As shown, the upper hook mechanism 40 includes an upper hook mounting frame 41, a third slide rail 42, a second cylinder 43, and a first movable push block assembly 45. The upper hook mounting frame 41 is slidably arranged on the third slide rail 42 along the first direction. The second cylinder 43 is connected to the upper hook mounting frame 41 and is used to drive the upper hook mounting frame 41 to move. The first movable push block assembly 45 is installed on the upper hook mounting frame 41. The first movable push block assembly 45 is limited to move in the first direction by the upper hook mounting frame 41 and the third slide rail 42. The first movable push block assembly 45 is used to push the full material tray from the upper runner member 10 to the opening and closing connecting rod mechanism 30, thereby improving the efficiency of feeding. Preferably, the first movable push block assembly 45 is located directly above the upper runner member 10, so that the first movable push block assembly 45 can be free from interference from other structural parts to realize convenient hooking and pushing of the full material tray.

[0048] Preferably, the upper hook mechanism 40 also includes a first hook 44, which is mounted on the upper hook mounting frame 41. The first hook 44 is limited to move in the first direction by the upper hook mounting frame 41 and the third slide rail 42, wherein the first hook 44 is used to initially move the full material tray on the upper runner component 10 or to hook the full material tray onto the upper runner component 10.

[0049] Please refer again Figure 4 , the upper runner component 10 corresponds to the full tray waiting position A, and the opening and closing connecting rod mechanism 30 corresponds to the full tray taking position A. By setting the first hook 44 and the first movable push block assembly 45, it is possible to move two full trays at the same time, that is, the moving path of the first hook 44 and the first movable push block assembly 45 is reduced, and the efficiency of loading the full tray is improved. Preferably, the first hook 44 and the first movable push block assembly 45 are both arranged above the upper runner component 10, so that the full tray can be conveniently hooked without interference from other structural parts, and the bending structure of the first hook 44 faces the upper runner component 10, so as to better hook the full tray. It can be understood that in order to shorten the movement stroke of the driving component that hooks and pushes the full tray from the upper runner component 10 to the opening and closing connecting rod mechanism 30, and in order to improve the efficiency of loading the full tray, the present design divides the upper hook mechanism 40 used to hook and push the driving structure of the full tray into two parts, one is the first hook 44 that moves the full tray on the upper runner component 10, and the other is the first movable push block assembly 45 that pushes the full tray from the upper runner component 10 to the opening and closing connecting rod mechanism 30.

[0050] Preferably, please refer again to Figure 7 The upper hook mechanism 40 also includes a hydraulic buffer 46, which is arranged along the first direction corresponding to the hook mounting frame. The hydraulic buffer 46 is used to buffer the movement of the upper hook mounting frame 41 in the first direction to prevent the full material tray from vibrating, thereby preventing the product in the full material tray from tilting.

[0051] In one embodiment, if Figure 8 As shown, the first movable push block assembly 45 includes a first push block 451, a first fixing bolt 452 and a push block mounting frame 453. The first push block 451 is rotatably mounted on the push block mounting frame 453 through the first fixing bolt 452, and the push block mounting frame 453 is fixed on the upper hook mounting frame 41. The first push block 451 includes a first push plate portion 4511 and a first limit portion 4512, and a limit protrusion 4531 is provided on the push block mounting frame 453. When the first push block 451 moves close to the opening and closing connecting rod mechanism 30, the first push plate portion 4511 abuts against the full material tray and the first limit portion 4512 abuts against the limit protrusion 4531, so that the first push block 451 cannot rotate, and the first push plate portion 4511 pushes the full material tray to move to the opening and closing connecting rod mechanism 30, that is, the first push block 451 pushes the full material tray to the opening and closing connecting rod mechanism 30. When the first push block 451 moves away from the opening and closing link mechanism 30, the first push plate portion 4511 is squeezed and lifted by the full material tray, and the first limit portion 4512 moves away from the limit protrusion 4531, so that the first push plate portion 4511 slides over the upper surface of the full material tray. It can be understood that, considering that the first push block 451 needs to push multiple full material trays from the upper runner member 10 to the opening and closing link mechanism 30 in sequence, and needs to return to push another new full material tray after pushing a full material tray, the first push block 451 is designed to push the full material tray when it moves close to the opening and closing link mechanism 30, and slide over the surface of the new full material tray when it moves away from the closing link mechanism 30, so that the repeated movement of the first push block 451 is not affected, thereby improving the flexibility of the first movable push block assembly 45.

[0052] In one embodiment, if Fig. 9 As shown, the lower hook mechanism 50 includes a lower hook mounting frame 51, a fourth slide rail 52, a third cylinder 53, a second hook 54 and a second movable push block assembly 55. The lower hook mounting frame 51 is slidably arranged on the fourth slide rail 52 along the first direction. The third cylinder 53 is connected to the lower hook mounting frame 51 and is used to drive the lower hook mounting frame 51 to move. The second hook 54 and the second movable push block assembly 55 are installed on the lower hook mounting frame 51. The second hook 54 is used to move the empty material tray located below the opening and closing connecting rod mechanism 30 in the lower flow channel member 20, and the second movable push block assembly 55 is used to push the empty material tray out of the lower flow channel member 20. Please refer to Figure 4The lower runner component 20 includes a first part 21 and a second part 22, wherein the second part 22 corresponds to the empty tray waiting to be pushed out position C, and the first part 21 corresponds to the empty tray pushing out position D. By setting the second hook 54 and the second movable push block assembly 55, the two empty trays can be moved at the same time, that is, the moving path of the second hook 54 and the second movable push block assembly 55 is reduced, and the efficiency of empty tray unloading is improved. Preferably, the second hook 54 and the second movable push block assembly 55 are both arranged below the lower runner component 20, so that the empty tray can be conveniently hooked and pushed without being interfered by other structural parts, and the bending structure of the second hook 54 faces the lower runner component 20, so as to better hook the full and empty trays. It can be understood that in order to reduce the movement stroke of the driving member that pushes the empty material tray out of the lower layer flow channel member 20, and in order to improve the efficiency of unloading the empty material tray, the present design divides the lower hook mechanism 50 used to hook and push the driving structure of the empty material tray into two parts, one is the second hook 54 that pushes the empty material tray from the second part 22 of the lower layer flow channel member 20 to the first part 21, and the other is the second movable push block assembly 55 that pushes the empty material tray out of the first part 21 of the lower layer flow channel member 20.

[0053] In one embodiment, if Fig. 9 and Fig.10 As shown, the second movable push block assembly 55 includes a second push block 551, a second fixing bolt 552 and a push block limiting frame 553. The push block limiting frame 553 is provided with a limiting groove 554. The second push block 551 is rotatably installed in the limiting groove 554 through the second fixing bolt 552. The push block limiting frame 553 is fixed on the lower hook mounting frame 51. Among them, the second push block 551 includes a second push plate portion 5511 and a second limiting portion 5512. The limiting groove 554 is provided with a limiting surface 5541. When the second push block 551 moves close to the opening and closing connecting rod mechanism 30, the second push plate portion 5511 is squeezed down by the empty material tray, and the second limiting portion 5512 is away from the limiting surface 5541, so that the second push plate portion 5511 slides over the lower surface of the full material tray. When the second push block 551 moves away from the opening and closing link mechanism 30, the second push plate portion 5511 abuts against the empty material tray and the second limit portion 5512 abuts against the limit surface 5541, so that the second push block 551 cannot rotate, and the second push plate portion 5511 pushes the empty material tray away from the lower runner member 20, that is, the second push block 551 realizes the empty material tray being pushed out from the first portion 21 of the lower runner member 20. It can be understood that, considering that the second push block 551 needs to push multiple empty material trays out of the lower runner member 20 in sequence, and needs to return to push another new empty material tray after pushing an empty material tray, the second push block 551 is designed to slide over the surface of the new empty material tray when it moves close to the opening and closing link mechanism 30, so that the repeated movement of the second push block 551 is not affected, and when it moves away from the opening and closing link mechanism 30, it pushes the empty material tray, thereby improving the flexibility of the second movable push block assembly 55.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0055] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A tray loading and unloading mechanism, characterized in that: include: A fixed plate, and an upper runner component, a lower runner component and an opening and closing connecting rod mechanism mounted on the fixed plate, wherein the upper runner component and the lower runner component both extend in a first direction and are spaced apart in a second direction, the opening and closing connecting rod mechanism is arranged on a side of the upper runner component along the first direction, and the opening and closing connecting rod mechanism is directly opposite to a portion of the lower runner component, and the first direction is perpendicular to the second direction; The opening and closing connecting rod mechanism is used to carry the full material tray from the upper runner component and transfer the empty material tray after taking out the material to the lower runner component.

2. The tray loading and unloading mechanism according to claim 1, characterized in that: The tray loading and unloading mechanism also includes an upper hook mechanism and a lower hook mechanism installed on the fixed plate, the upper hook mechanism is used to hook the full tray from the upper flow channel component to the opening and closing connecting rod mechanism; the lower hook mechanism is used to push the empty tray out of the lower flow channel component.

3. The tray loading and unloading mechanism according to claim 2, characterized in that: The upper flow channel component includes an upper support plate and an L-shaped limit block, and the L-shaped limit block is distributed in parallel on the surface of the upper support plate. The upper support plate and the L-shaped limit block jointly define an upper flow channel for the full material tray to move, and the length of the upper support plate in the first direction is smaller than the length of the lower flow channel component in the first direction.

4. The tray loading and unloading mechanism according to claim 3, characterized in that: The end of the L-shaped limit block is provided with a guide slope, and the guide slope enlarges the end opening of the upper flow channel.

5. The tray loading and unloading mechanism according to claim 4, characterized in that: The lower runner component includes a first portion and a second portion, the second portion is close to the opening and closing link mechanism, and a height of the first portion in the second direction is smaller than a height of the second portion in the second direction.

6. The tray loading and unloading mechanism according to claim 1, characterized in that: The opening and closing link mechanism comprises a first support plate assembly and a second support plate assembly, wherein the first support plate assembly comprises a first movable support plate and a first fixed support plate, and the first movable support plate is slidably disposed on the first fixed support plate in a direction toward the second support plate assembly; The second support plate assembly comprises a second movable support plate and a second fixed support plate, and the second movable support plate is slidably disposed on the second fixed support plate toward the direction of the first support plate assembly; When the first movable pallet and the second movable pallet are combined, they are used to carry the full tray; when the first movable pallet and the second movable pallet are opened, they are used to drop the empty tray to the lower runner component.

7. The tray loading and unloading mechanism according to claim 6, characterized in that: The first pallet assembly further includes a first slide rail, and the first movable pallet is slidably disposed on the first fixed pallet via the first slide rail; the second pallet assembly further includes a second slide rail, and the second movable pallet is slidably disposed on the second fixed pallet via the second slide rail.

8. The tray loading and unloading mechanism according to claim 7, characterized in that: The first support plate assembly also includes a bearing support member, which includes a limit bearing, a sliding rod, a spring and a mounting block. The mounting block is provided with a mounting groove facing the second support plate assembly. The limit bearing is installed at one end of the sliding rod, and the other end of the sliding rod is arranged in the mounting groove through the spring.

9. The tray loading and unloading mechanism according to claim 2, characterized in that: The upper hook mechanism comprises an upper hook mounting frame, a third slide rail, a second cylinder and a first movable push block assembly, the upper hook mounting frame is slidably arranged on the third slide rail along the first direction, the third slide rail is mounted on the outer side wall of the fixed plate, the second cylinder is connected to the upper hook mounting frame and is used to drive the upper hook mounting frame to move, the first movable push block assembly is mounted on the upper hook mounting frame, and the first movable push block assembly is used to push the full material tray from the upper runner member to the opening and closing connecting rod mechanism; Wherein, the first movable push block assembly is located directly above the upper flow channel component.

10. The tray loading and unloading mechanism according to claim 9, characterized in that: The upper hook mechanism further includes a hydraulic buffer, which is arranged along the first direction corresponding to the hook mounting frame, and the hydraulic buffer is used to buffer the movement of the upper hook mounting frame in the first direction.

11. The tray loading and unloading mechanism according to claim 2, characterized in that: The lower hook mechanism comprises a lower hook mounting frame, a fourth slide rail, a third cylinder, a second hook and a second movable push block assembly, the lower hook mounting frame is slidably arranged on the fourth slide rail along the first direction, the fourth slide rail is mounted on the outer side wall of the fixed plate, the third cylinder is connected to the lower hook mounting frame and is used to drive the lower hook mounting frame to move, the second hook and the second movable push block assembly are mounted on the lower hook mounting frame, the second hook is used to push away the empty material tray located below the opening and closing connecting rod mechanism, and the second movable push block assembly is used to push the empty material tray out of the lower runner member; The second hook and the second movable push block assembly are located directly below the lower flow channel component, and the bending structure of the second hook faces the lower flow channel component.

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