Material conveying mechanism

Abstract

The utility model discloses a material conveying mechanism, and relates to the technical field of material conveying, the material conveying mechanism comprises a rack, a moving table and a window cover structure, the rack is provided with a working table, and a window is formed in the table top of the working table; the moving table can be movably arranged on the rack in the first direction and is used for transporting materials to the window; the window cover structure comprises a cover plate and a transmission mechanism, the cover plate is movably arranged on the workbench and has a covering state for covering the window and an opening state for opening the window, and the movable table is in driving connection with the cover plate through the transmission mechanism so that the cover plate can be switched from the covering state to the opening state and / or switched from the opening state to the covering state. According to the technical scheme provided by the utility model, the driving device of the equipment can be simplified on the premise of realizing automatic opening and closing of the window.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a material conveying mechanism. Background Technology

[0002] Automated production lines typically include workbenches, operating mechanisms, and material conveying mechanisms. Due to space constraints, part of the material conveying mechanism is often located beneath the workbenches. To facilitate material retrieval by workers, a lifting platform is usually installed to raise the materials above the workbenches. Therefore, the workbenches typically have windows for materials to be lifted off the tabletop. When the windows are not in use, a cover is usually installed to allow for better dust and protection, and this cover is automatically opened and closed using a drive mechanism such as a cylinder or motor. However, using a drive mechanism to automatically open and close the cover not only makes the material conveying mechanism's drive unit more complex and costly, but also occupies the limited space beneath the workbenches. Therefore, simplifying the equipment's drive mechanism while achieving automatic window opening and closing is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] The main purpose of this invention is to propose a material conveying mechanism that simplifies the equipment's drive mechanism while enabling automatic window opening and closing.

[0004] To achieve the above objectives, the material conveying mechanism proposed in this utility model includes:

[0005] The machine frame is equipped with a workbench, and the workbench surface has a window.

[0006] A movable table, movably mounted on the frame in a first direction, is used to transport materials to the window; and

[0007] The window cover structure includes a cover plate and a transmission mechanism. The cover plate is movably mounted on the worktable and has a closed state when it is closed over the window and an open state when the window is open. The moving stage is driven by the transmission mechanism to connect to the cover plate, so as to cause the cover plate to switch from the closed state to the open state and / or from the open state to the closed state.

[0008] In one embodiment, the cover plate is rotatably mounted on a worktable, and the moving table can push against the transmission mechanism as it moves toward the window, so as to cause the cover plate to rotate outward and open.

[0009] In one embodiment, the transmission mechanism is a linkage mechanism and includes a first linkage, a second linkage and a third linkage connected in sequence. The worktable is provided with a guide. The first linkage is movably disposed on the guide in a first direction and can be pushed by the moving table. The first end of the second linkage is rotatably connected to the first linkage, and the second end is rotatably connected to the first end of the third linkage. The second end of the third linkage is rotatably connected to the worktable and fixed on the cover plate.

[0010] In one embodiment, the window cover structure further includes an elastic reset member, which is connected to the first link and the worktable. The elastic potential energy of the elastic reset member in the closed state is greater than that in the open state.

[0011] In one embodiment, the guide member has a guide through hole, and a first connecting rod slides through the guide through hole. The first connecting rod has a driven end for the moving stage to push against. The driven end is located on the side of the guide through hole away from the cover plate, and an elastic reset member is connected between the driven end and the guide member.

[0012] In one embodiment, the elastic reset element is a compression spring.

[0013] In one embodiment, the window is covered by two cover plates, with the rotation axes of the two cover plates located on opposite sides of the window. There are two second and three connecting rods, which are arranged in correspondence with the two cover plates. The first connecting rod includes an intersecting first rod portion and a second rod portion. The first rod portion extends along a first direction and is connected to a guide member. The end of the second rod portion is rotatably connected to the second connecting rod.

[0014] In one embodiment, a first rod portion is provided and connected to the middle portion of a second rod portion, and the opposite ends of the second rod portion are respectively rotatably connected to two second connecting rods;

[0015] In one embodiment, when the linkage mechanism is in the corresponding closed state, the end face of the second rod abuts against the end face of the guide.

[0016] In one embodiment, the window is covered by a cover plate, and a corresponding linkage mechanism is provided. A limiting flange is provided on the peripheral side of the first linkage. When the linkage mechanism is in the corresponding covered state, the end face of the limiting flange abuts against the end face of the guide.

[0017] In one embodiment, when the cover is in the open state, the linkage mechanism is located on the side of the cover near the center of the window, and the second linkage extends along a first direction and at least partially protrudes from the window.

[0018] In one embodiment, the third link includes an intersecting connecting rod portion and a mounting rod portion. One end of the connecting rod portion is rotatably connected to the second link, and the other end is fixed to the mounting rod portion. The mounting rod portion is fixed to the side edge of the cover plate and rotatably connected to the worktable. When the cover plate is in the open state, the mounting rod portion extends along the first direction, and the connecting rod portion extends obliquely away from the cover plate in the direction from the inside to the outside and extends out of the window.

[0019] In one embodiment, the first direction is the vertical direction. The moving platform includes a lifting mechanism, a lifting seat, and a transverse conveyor line. The lifting seat can move in the vertical direction under the drive of the lifting mechanism. The transverse conveyor line is provided on the lifting seat and is used for transverse material conveying. The lifting seat has a frame that extends above the transverse conveyor line. The frame is used to push against the transmission mechanism.

[0020] The technical solution of this utility model uses a moving stage to drive the cover plate to automatically open and / or close. That is, the moving stage can be used to automatically open and close the cover plate, or it can be used only to automatically open the cover plate, while the automatic closing of the cover plate is achieved by other structures; or it can be used only to automatically close the cover plate, while the automatic opening of the cover plate is achieved by other structures. Thus, there is no need to add an additional driving component to achieve the opening and closing action of the cover plate, thereby simplifying the device's driving mechanism while achieving automatic window opening and closing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments 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 the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of a material conveying mechanism according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 The diagram shows the cooperation between the movable platform and the window cover structure. At this time, the cover is in the open state.

[0024] Figure 3 for Figure 1 Another schematic diagram of the movable platform and window cover structure is shown, in which the cover plate is in the closed state;

[0025] Figure 4 for Figure 2 A schematic diagram of the window cover structure shown from one viewpoint;

[0026] Figure 5 for Figure 2A schematic diagram of the window cover structure shown from another perspective;

[0027] Figure 6 for Figure 3 A schematic diagram of the window cover structure is shown;

[0028] Figure 7 A partial structural schematic diagram of another embodiment of the material conveying mechanism provided by this utility model;

[0029] Figure 8 for Figure 7 A schematic diagram of the window cover structure shown from one viewpoint;

[0030] Figure 9 for Figure 7 A schematic diagram of the window cover structure shown from another perspective;

[0031] Figure 10 for Figure 7 The diagram shows the window cover structure with the cover plate in the closed state.

[0032] Explanation of icon numbers:

[0033] 100. Frame; 110. Worktable; 111. Window; 112. Guide component; 113. Guide through hole;

[0034] 200. Moving table; 210. Lifting mechanism; 220. Lifting seat; 221. Frame; 230. Horizontal conveyor line;

[0035] 300. Window cover structure; 301. Cover plate; 302. Transmission mechanism; 303. Elastic reset component; 304. Mounting flange; 310. First connecting rod; 311. First rod part; 312. Second rod part; 313. Limiting flange; 314. Driven end; 320. Second connecting rod; 330. Third connecting rod; 331. Connecting rod part; 332. Mounting rod part.

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Automated production lines typically include workbenches, operating mechanisms, and material conveying mechanisms. Due to space constraints, part of the material conveying mechanism is often located beneath the workbenches. To facilitate material retrieval by workers, a lifting platform is usually installed to raise the materials above the workbenches. Therefore, the workbenches typically have windows for materials to be lifted off the tabletop. When the windows are not in use, a cover is usually installed to allow for better dust and protection, and this cover is automatically opened and closed using a drive mechanism such as a cylinder or motor. However, using a drive mechanism to automatically open and close the cover not only makes the material conveying mechanism's drive unit more complex and costly, but also occupies the limited space beneath the workbenches. Therefore, simplifying the equipment's drive mechanism while achieving automatic window opening and closing is a technical problem that urgently needs to be solved by those skilled in the art.

[0041] In view of this, the present invention proposes a material conveying mechanism that simplifies the equipment's drive device while achieving automatic window opening and closing.

[0042] Please see Figure 1 In one embodiment of the present invention, the material conveying mechanism includes a frame 100 and a moving platform 200. The frame 100 is provided with a workbench 110, and the workbench 110 has a window 111 on its surface. The moving platform 200 is movably disposed on the frame 100 in a first direction and is used to transport materials to the window 111.

[0043] In this embodiment, the first direction can optionally be the up-down direction, that is, the moving platform 200 can move up and down in the up-down direction. Of course, in other embodiments, the first direction can also be the left-right direction or the front-back direction. For example, when the window 111 is located on the side of the workbench 110, the moving platform 200 can extend the window 111 from left to right to send materials from the inside of the workbench to the outside, or to receive materials from the outside of the workbench and take them into its interior.

[0044] To facilitate the writing and understanding of the scheme, the following explanation will use an example where the first direction is the vertical direction.

[0045] In this embodiment, the moving table 200 can transport materials that were originally located below the workbench 110 to or out of the window 111, which is beneficial for workers to pick up materials. The term "material transported to the window 111" should be interpreted broadly. It can mean that the overall structure of the material is still below but adjacent to the window 111, or it can mean that part or all of the material's structure extends out of the window 111.

[0046] Please refer to the following: Figures 2 to 4 Furthermore, the material conveying mechanism also includes a window cover structure 300, which includes a cover plate 301 and a transmission mechanism 302. The cover plate 301 is movably mounted on the worktable 110 and has a closed state (closing the window 111) and an open state (opening the window 111). The moving stage 200 drives the cover plate 301 through the transmission mechanism 302 to switch from the closed state to the open state and / or from the open state to the closed state. In this way, the moving stage 200 drives the cover plate 301 to achieve automatic opening and / or closing, eliminating the need for additional drive components to realize the opening and closing action of the cover plate 301, thus simplifying the equipment's drive mechanism.

[0047] Specifically, the mobile station 200 can be used to realize the automatic opening and closing of the cover 301, or it can be used only to realize the automatic opening of the cover 301, while the automatic closing of the cover 301 is realized by other structures; or it can be used only to realize the automatic closing of the cover 301, while the automatic opening of the cover 301 is realized by other structures.

[0048] Secondly, the cover plate 301 can move in multiple ways; it can be rotatably mounted on the worktable 110 or it can be translatably mounted on the worktable 110. When the cover plate 301 is in a rotating form, it can open by rotating upwards or downwards.

[0049] For example, please see Figure 2 and Figure 3In one embodiment, the cover plate 301 is rotatably mounted on the worktable 110. During its upward movement (i.e., moving closer to the window 111), the moving stage 200 pushes against the transmission mechanism 302, causing the cover plate 301 to rotate outward and open. That is, in this embodiment, the upward movement of the moving stage 200 causes the transmission mechanism 302 to move, thereby driving the cover plate 301 to rotate upward and open. Of course, in other embodiments, the moving stage 200 may also push against the conveying mechanism during its downward movement, causing the cover plate 301 to rotate downward and open.

[0050] It is understood that in this embodiment of the invention, "opening by rotating outwards" refers to the outward orientation relative to the worktable. That is, "opening by rotating outwards" means that the side edge of the cover plate away from its axis of rotation moves away from the inner side of the worktable. Therefore, in the embodiment where the window is located on the side of the worktable and the moving platform moves from left to right and opens the cover plate, "opening by rotating outwards" means that the cover plate opens by rotating to the right.

[0051] Please refer to the following: Figures 4 to 6 In this embodiment, optionally, the transmission mechanism 302 is a linkage mechanism, including multiple revolute joints and prismatic joints. The prismatic joints are able to move along the first direction due to the push of the moving platform 200, and the multiple revolute joints are connected between the prismatic joints and the cover plate 301. In this way, the upward movement of the moving platform 200 is converted into the rotational movement of the cover plate 301 through the linkage mechanism, which is simple in structure and easy to implement.

[0052] Of course, in other embodiments, the transmission mechanism 302 may also be in other forms. For example, the transmission mechanism 302 includes a first rack, a first gear, a second rack, a second gear, and a mounting gear. The first rack extends along a first direction and can be pushed upward by the moving table 200, and the first gear can rotate and mesh on the first rack. The second gear is coaxially arranged with the first gear, and the second rack extends along the left and right direction and can move and mesh on the second gear in the left and right direction. The mounting gear is fixed on the cover plate 301 and can rotate and mesh on the second rack. When the second rack is driven by the second gear to move laterally, it can cause the mounting gear to rotate and drive the cover plate 301 to rotate and open.

[0053] Specifically, the linkage mechanism includes a first link 310, a second link 320, and a third link 330 connected in sequence. The worktable 110 is provided with a guide 112. The first link 310 is movably mounted on the guide 112 along a first direction and can be pushed by the moving platform 200. The first end of the second link 320 is rotatably connected to the first link 310, and the second end is rotatably connected to the first end of the third link 330. The second end of the third link 330 is rotatably connected to the worktable 110 and fixed to the cover plate 301. The movement of the first link 310 on the guide 112 constitutes a sliding pair. The rotatable connections between the second link 320 and the first link 310, between the third link 330 and the second link 320, and between the third link 330 and the worktable 110 constitute multiple revolute pairs. That is, the linkage mechanism in this embodiment is a planar four-bar linkage, which is simple in structure and easy to implement. It is understandable that since the guide 112 is fixedly mounted on the worktable 110 and the rotation axis of the third link 330 is relatively fixed on the worktable 110, the two are relatively fixed through the worktable 110. That is, the worktable 110 constitutes the relatively fixed frame 100 in the planar four-bar linkage mechanism.

[0054] Please see Figures 4 to 6 Furthermore, the window cover structure 300 also includes an elastic reset member 303, which connects the first link 310 and the worktable 110. The elastic potential energy of the elastic reset member 303 in the closed state is greater than that in the open state. Thus, when the first link 310 is not pushed by the moving platform 200, the first link 310 can remain in the position corresponding to the closed state under the action of the elastic reset member 303. That is, in this embodiment, the pushing of the moving platform 200 is used to realize the automatic opening of the cover plate 301, while the automatic closing of the cover plate 301 is realized by the elastic reset member 303. Specifically, when the moving platform 200 rises to push the first link 310 and cause the cover plate 301 to open, the elastic potential energy of the elastic reset member 303 gradually increases. Therefore, when the moving platform 200 descends, the first link 310 will gradually move downward under the action of the elastic reset member 303 and eventually return to the position corresponding to the closed state of the cover plate 301. Thus, the automatic opening and closing of the cover 301 does not require additional driving components, thereby simplifying the device's driving mechanism and resulting in a simple and easy-to-implement structure. Of course, in some other embodiments, the elastic reset member 303 may not be included.

[0055] Of course, in other embodiments, the descent and pushing of the moving platform 200 can be used to achieve automatic closing of the cover plate 301, while the automatic opening of the cover plate 301 is achieved by the elastic reset member 303. Specifically, the lower end of the first connecting rod 310 is provided with a driven flange, and the moving platform 200 is provided with a corresponding pushing surface. When the moving platform 200 descends, the pushing surface can push against the driven flange of the first connecting rod 310, so that the first connecting rod 310 moves downward and causes the cover plate 301 to rotate and close on the window 111, while the elastic potential energy of the elastic reset member 303 increases; while when the moving platform 200 rises, the elastic potential energy of the elastic reset member 303 is released, so that the first connecting rod 310 moves upward and causes the cover plate 301 to rotate and open.

[0056] Please see Figure 2 and Figure 5 Optionally, the guide member 112 is provided with a guide through hole 113, and the first connecting rod 310 slides through the guide through hole 113. The first connecting rod 310 has a driven end 314 located below the guide through hole 113 for the moving platform 200 to push against. An elastic reset member 303 is connected between the driven end 314 and the guide member 112. Optionally, the elastic reset member 303 is a compression spring. In this way, on the one hand, the guide through hole 113 can guide the displacement of the first connecting rod 310 to improve the smoothness and stability of the movement of the first connecting rod 310. On the other hand, by placing the elastic reset member 303 below the guide member 112, that is, on the side of the guide member 112 away from the cover plate 301, it is possible to avoid the elastic reset member 303 interfering with the operation of the second connecting rod 320 and the third connecting rod 330.

[0057] Of course, in other embodiments, the elastic reset member 303 may be located in other positions. For example, the elastic reset member 303 may be connected between the end of the first link 310 located above the guide through hole 113 and the guide member 112. In other embodiments, the elastic reset member 303 may also be a tension spring, or a part with elastic deformation capability such as an elastic silicone body or a spring steel sheet.

[0058] Please see Figure 2 and Figure 3Further, in some embodiments, optionally, the moving table 200 includes a lifting mechanism 210, a lifting seat 220, and a transverse conveyor line 230. The lifting seat 220 is capable of moving vertically under the drive of the lifting mechanism 210. The transverse conveyor line 230 is disposed on the lifting seat 220 and is used for transversely conveying materials. The lifting seat 220 has a frame 221 that extends above the transverse conveyor line 230, and the frame 221 is used to push against the transmission mechanism 302. Specifically, the transverse conveyor line 230 can receive materials from the previous process below the worktable 110. The materials are input into the transverse conveyor line 230 along the transverse direction, and then the lifting seat 220 rises to the location of the window 111 so that the materials are exposed in the window 111 and available for workers to pick up.

[0059] In this embodiment, on the one hand, the frame 221 can be used to prevent materials from accidentally detaching from the transverse conveyor line 230; on the other hand, the frame 221 can also be used to push against the transmission mechanism 302 (e.g., Figure 2 (See the first link 310 shown). That is, in this embodiment, the frame 221 is reused as a pushing structure for pushing the transmission mechanism 302. In this way, the existing structure of the lifting seat 220 itself (i.e., the frame 221) is used to push and drive the transmission mechanism 302, eliminating the need to set an additional pushing structure on the moving platform 200, thereby simplifying the structure of the equipment and reducing the manufacturing cost of the equipment. Of course, in other embodiments, the frame 221 of the lifting seat 220 may also be provided with a push rod, which pushes the transmission mechanism 302.

[0060] It is understood that there can be one or more cover plates 301 that fit over the same window 111. For example, please refer to... Figures 4 to 6 In one embodiment, the window 111 is covered by two cover plates 301, with the rotation axes of the two cover plates 301 located on opposite sides of the window 111. Two second connecting rods 320 and two third connecting rods 330 are provided, corresponding one-to-one with the two cover plates 301. The first connecting rod 310 includes an intersecting first rod portion 311 and a second rod portion 312. The first rod portion 311 extends along a first direction and connects to the guide member 112, while the end of the second rod portion 312 is rotatably connected to the second connecting rod 320. Thus, with the window 111 having equal dimensions, the size and weight of the two cover plates 301 are relatively small, which helps reduce the load the linkage mechanism must bear during operation, thereby improving the service life of the linkage mechanism.

[0061] Please see Figure 5In this embodiment, optionally, a first rod portion 311 is provided and connected to the middle of a second rod portion 312, with the opposite ends of the second rod portion 312 respectively rotatably connected to two second connecting rods 320. That is, in this embodiment, the two sets of linkage mechanisms corresponding to the two cover plates 301 share the first connecting rod 310. The up-and-down movement of the first connecting rod 310 can simultaneously drive the two second connecting rods 320 to move, thereby simultaneously driving the two cover plates 301 to perform synchronous opening or closing actions. Of course, in other embodiments, the two sets of linkage mechanisms corresponding to the two cover plates 301 can also be independently provided, that is, two first connecting rods 310 are also provided, and are connected one-to-one with the two second connecting rods 320, and are respectively movably provided on the guide member 112.

[0062] In this embodiment, optionally, when the linkage mechanism is in the corresponding closed state, the lower end face of the second rod portion 312 abuts against the upper end face of the guide member 112. Thus, by using the lower end face of the second rod portion 312 to abut against the upper end face of the guide member 112 to restrict the linkage mechanism from moving further downward, the existing structure is fully utilized to achieve this limiting effect, eliminating the need for additional limiting structures and simplifying the device's structure.

[0063] Please see Figure 4 and Figure 5 Furthermore, in this embodiment, optionally, when the cover plate 301 is in the open state, the linkage mechanism is located on the side of the cover plate 301 near the center of the window 111, and the second link 320 extends along the first direction and at least partially protrudes from the window 111. This allows for a more compact structure of the linkage mechanism and improves its smoothness and reliability of operation. Of course, in other embodiments, a portion of the linkage mechanism may be located on the side of the cover plate 301 near the center of the window 111, and another portion may be located on the side of the cover plate 301 away from the center of the window 111.

[0064] To further improve the structural compactness of the linkage mechanism, please refer to Figure 4 and Figure 5 In this embodiment, optionally, the third link 330 includes an intersecting connecting rod portion 331 and a mounting rod portion 332. One end of the connecting rod portion 331 is rotatably connected to the second link 320, and the other end is fixed to the mounting rod portion 332. The mounting rod portion 332 is fixed to the side edge of the cover plate 301 and rotatably connected to the worktable 110. When the cover plate 301 is in the open state, the mounting rod portion 332 extends along the first direction, and the connecting rod portion 331 extends obliquely away from the cover plate 301 in the direction from the inside out, extending out of the window 111. That is, when the cover plate 301 is in the open state, the second link 320, the connecting rod portion 331, and the mounting rod portion 332 have a roughly Z-shaped relative positional relationship. In this way, the structure of the linkage mechanism can be made more compact, and its smoothness and reliability of operation can be improved.

[0065] In this embodiment, the connecting rod 331 and the mounting rod 332 have a roughly V-shaped structure. The edge of the cover plate 301 is provided with a mounting flange 304 corresponding to the mounting rod 332. The mounting flange 304 can be fixed to the outer surface of the mounting rod 332 by fasteners such as rivets or screws, or it can be directly fixed to the mounting rod 332 by welding.

[0066] Of course, besides the method described above where two cover plates 301 together cover a window 111, a single cover plate 301 can also be used to cover a window 111. For details, please refer to [link to relevant documentation]. Figures 7 to 10 In another embodiment, window 111 is covered by a cover plate 301, and a corresponding linkage mechanism is provided. A limiting flange 313 is provided on the peripheral side of the first link 310. When the linkage mechanism is in the corresponding covered position, the lower end face of the limiting flange 313 abuts against the upper end face of the guide member 112. Thus, by using the limiting flange 313 abutting against the guide member 112, the downward movement of the first link 310 can be restricted, ensuring that the linkage mechanism can operate within its normal operating range. Of course, in other embodiments, the limiting flange 313 may not be provided.

[0067] Of course, in other embodiments, three or more cover plates 301 may be used to cover the same window 111.

[0068] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A material conveying mechanism, characterized by, The utility model relates to a window cover structure of a workbench, and particularly relates to a window cover structure of a workbench. The utility model discloses a window cover structure of a workbench, which comprises a rack (100) provided with a workbench (110), a window (111) is opened in the tabletop of the workbench (110), a movable table (200) is movably arranged in the rack (100) along a first direction and is used for transporting materials to the window (111), and a window cover structure (300) is arranged on the window (111) and comprises a cover plate (301) and a transmission mechanism (302). The cover plate (301) is rotatably arranged on the workbench (110), and the movable table (200) can push the transmission mechanism (302) during movement towards the window (111) to rotate the cover plate (301) outward and open the cover plate (301). The transmission mechanism (302) is a connecting rod mechanism and comprises a first connecting rod (310), a second connecting rod (320) and a third connecting rod (330) connected in sequence, the workbench (110) is provided with a guide (112), the first connecting rod (310) is movably arranged on the guide (112) along the first direction and can be pushed by the movable table (200), a first end of the second connecting rod (320) is rotatably connected to the first connecting rod (310), a second end of the second connecting rod (320) is rotatably connected to a first end of the third connecting rod (330), and a second end of the third connecting rod (330) is rotatably connected to the workbench (110) and is fixedly arranged on the cover plate (301). The window cover structure (300) further comprises a resilient reset member (303) connected to the first connecting rod (310) and the workbench (110), and the elastic potential energy of the resilient reset member in the closed state is greater than the elastic potential energy of the resilient reset member in the open state.

2. The material conveying mechanism of claim 1, wherein The guide (112) is provided with a guide through hole (113), the first connecting rod (310) is slidably arranged in the guide through hole (113), the first connecting rod (310) has a driven end (314) for being pushed by the movable table (200), the driven end (314) is located on a side of the guide through hole (113) away from the cover plate (301), and the resilient reset member (303) is connected between the driven end (314) and the guide (112).

3. The material conveying mechanism of claim 2, wherein, The resilient reset member (303) is a compression spring.

4. The material conveying mechanism of claim 3, wherein ​ 5. The material conveying mechanism of claim 4, wherein, ​ ​ 6. The material conveying mechanism of claim 3, wherein The window (111) is covered by two cover plates (301), the rotation axes of the two cover plates (301) are arranged on opposite sides of the window (111), the second connecting rods (320) and the third connecting rods (330) are both provided in pairs and correspond to the two cover plates (301), the first connecting rod (310) comprises intersecting first and second rod portions (311, 312), the first rod portion (311) extends along the first direction and is connected to the guide (112), and the end of the second rod portion (312) is rotationally connected to the second connecting rod (320).

7. The material conveying mechanism of claim 3, wherein The window (111) is covered by one cover plate (301), the connecting rod mechanism is provided in one, and a limiting flange (313) is arranged on the circumferential surface of the first connecting rod (310), when the connecting rod mechanism is in the position corresponding to the cover state, the end surface of the limiting flange (313) abuts against the end surface of the guide (112).

8. The material conveying mechanism of claim 3, wherein When the cover plate (301) is in the open state, the connecting rod mechanism is located on the side of the cover plate (301) close to the center of the window (111), and the second connecting rod (320) extends along the first direction and at least partially protrudes out of the window (111).

9. A material conveying mechanism as claimed in claim 8, characterized in that The third connecting rod (330) comprises intersecting connecting and mounting rod portions (331, 332), one end of the connecting rod portion (331) is rotationally connected to the second connecting rod (320), and the other end is fixedly arranged on the mounting rod portion (332), the mounting rod portion (332) is fixedly arranged on the side edge of the cover plate (301) and rotationally connected to the workbench (110); when the cover plate (301) is in the open state, the mounting rod portion (332) extends along the first direction, the connecting rod portion (331) extends in a direction away from the cover plate (301) in a direction from inside to outside and protrudes out of the window (111).

10. A material transport mechanism as claimed in any one of claims 2 to 9, wherein, The first direction is the up-down direction, the mobile platform (200) comprises a lifting mechanism (210), a lifting seat (220) and a transverse conveying line (230), the lifting seat (220) can move along the up-down direction under the drive of the lifting mechanism (210), the transverse conveying line (230) is arranged on the lifting seat (220) and is used for transversely conveying materials, and the lifting seat (220) is provided with a frame (221) protruding from the transverse conveying line (230), and the frame (221) is used for pushing the transmission mechanism (302).

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