Circulating conveying device

Abstract

The circulating conveying device is provided with a supporting frame and a conveying assembly which are arranged on a workbench, two guide rails are arranged on the supporting frame in parallel, a plurality of carriers are placed in the guide rails, the conveying directions of conveying belts in the two guide rails are opposite, the carriers are placed on the conveying belts, and the motion trails of the carriers are limited by the guide rails. One of the two guide rails is provided with a feeding position, the other guide rail is provided with a material taking position, a first pushing assembly and a material induction piece are installed on one side of the guide rail with the feeding position, and a second pushing assembly is installed on one side of the guide rail with the material taking position. And the pushing assembly is used for circularly pushing the carriers between the guide rails. In the invention, the problem of material shortage in boxing can be solved, the production efficiency is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This application relates to the field of medical device manufacturing technology, and in particular to a circulating conveying device. Background Technology

[0002] Currently, various medical devices are widely used. For example, injection needles and pre-filled devices are generally transported in boxes to avoid damage during transportation. However, due to the limited pass rate of medical device manufacturing equipment, it is difficult to guarantee that the finished packaged products will be 100% full of material if the manufactured medical devices are directly boxed on the production equipment.

[0003] Currently, boxing typically involves either manual placement of materials on a conveyor belt or mechanical gripping, followed by loading into boxes by robotic arms. Manual placement results in low production efficiency, while mechanical gripping on a conveyor belt presents challenges in recognizing and handling by the robotic arm, necessitating the assistance of a costly vision system. Utility Model Content

[0004] The purpose of this application is to provide a circulating conveying device that can solve technical problems such as insufficient material for boxing, improve production efficiency and reduce manufacturing costs.

[0005] The embodiments of this application are implemented as follows:

[0006] This application provides a circulating conveying device, comprising a support frame and a conveying assembly mounted on a workbench. Two guide rails are arranged parallel to each other on the support frame. Multiple carriers are placed within the guide rails. The conveying assembly includes a conveyor belt. The conveyor belts within the two guide rails have opposite transmission directions. The carriers are placed on the conveyor belts and their movement trajectories are restricted by the guide rails. Lifting and sliding components are provided at both ends of each guide rail. Lifting and sliding components within different guide rails are connected by lifting and guiding components. One of the two guide rails has a loading position, and the other has a discharging position. A first pushing component and a material sensor are installed on one side of the guide rail with the loading position, and a second pushing component is installed on the side of the guide rail with the discharging position.

[0007] In one of the above-mentioned circulating conveying devices, the circulating conveying device further includes a blocking member, which is disposed at the conveying end point of the conveying assembly.

[0008] In one of the above-mentioned circulating conveying devices, the carrier has guide rollers, which are installed on both sides of the carrier, and the carrier moves on the guide track via the guide rollers.

[0009] In the aforementioned cyclic conveying device, the pushing component 1 includes multiple pushing elements 1, multiple pushing drive elements 1, and multiple pushing guide elements 1. One of the pushing drive elements 1 drives one of the pushing elements 1 to move, and one of the pushing guide elements 1 connects to one of the pushing elements 1 and restricts the movement trajectory of the pushing element 1. The multiple pushing elements 1 are arranged along the conveying direction of the carrier.

[0010] In the above-mentioned circulating conveying device, the lifting and sliding assembly has a lifting component, a lifting guide component, a connecting component, a lifting drive component, and rollers. The lifting guide component is fixedly installed on the worktable, and the connecting component slides through the lifting guide component. One end of the connecting component is connected to the lifting drive component and the other end is connected to the lifting component. The lifting drive component drives the connecting component to move, thereby causing the lifting component to move up and down. The lifting component is provided with a plurality of rollers.

[0011] In the above-mentioned circulating conveying device, the lifting guide assembly includes a second roller, a lifting guide block, a third connector, a third lifting guide component, and a third lifting drive component. The third lifting guide component is fixedly installed on the worktable, and the third connector slides through the third lifting guide component. One end of the third connector is connected to the third lifting drive component, and the other end is connected to the lifting guide block. The second roller is installed on the lifting guide block.

[0012] In the above-mentioned circulating conveying device, the lifting guide assembly includes multiple rollers, multiple lifting guide blocks, multiple connectors, and multiple lifting drive components. Each lifting guide block is a lifting guide block, and each lifting guide block is connected to a roller. Each lifting drive component independently drives a connector to lift each lifting guide block individually.

[0013] In the above-mentioned circulating conveying device, the lifting guide assembly includes a plurality of rollers, and the lifting guide block is a long strip-shaped lifting guide block, with the plurality of rollers arranged along the length direction of the lifting guide block.

[0014] In the aforementioned circulating conveying device, the first lifting member is provided with a through hole, the bottom of the carrier is provided with a positioning hole, and the circulating conveying device also has a lifting and positioning assembly. The lifting and positioning assembly is at least provided in the conveying end area of ​​the guide rail. The lifting and positioning assembly includes a second lifting member, a second lifting drive member, a second lifting guide member, and a second connecting member. The second lifting guide member is fixedly installed on the workbench, and the second connecting member passes through the second lifting guide member. One end of the second connecting member is connected to the second lifting member, and the other end is connected to the second lifting drive member. A positioning rod is connected to the second lifting member. The second lifting drive member can drive the positioning rod to rise. After the positioning rod is raised, it can pass through the through hole. When the carrier is located above the lifting and sliding assembly, the positioning rod can be inserted into the positioning hole.

[0015] In the aforementioned circulating conveying device, the carrier has a positioning groove on its side. The circulating conveying device also has a carrier stop assembly, which includes a lifting member three, a lifting guide four, a connecting member four, and a lifting drive four. The lifting guide four is fixedly mounted on the workbench, and the connecting member four passes through the lifting guide four. One end of the connecting member four is connected to the lifting member three, and the other end is connected to the lifting drive four. The lifting member three is provided with a stop protrusion, and the lifting drive four can drive the stop protrusion to rise and insert into the positioning groove on the side of the carrier.

[0016] In the aforementioned circulating conveying device, the carrier has a positioning hole at its bottom. The circulating conveying device also has a carrier stop assembly, which includes a lifting member three, a lifting guide four, a connecting member four, and a lifting drive four. The lifting guide four is fixedly mounted on the workbench, and the connecting member four passes through the lifting guide four. One end of the connecting member four is connected to the lifting member three, and the other end is connected to the lifting drive four. The lifting member three is provided with a blocking positioning post, and the lifting drive four can drive the blocking positioning post to rise and insert it into the positioning hole at the bottom of the carrier.

[0017] In the aforementioned cyclic conveying device, the second pushing component includes a second pushing member and a second pushing drive member. The length of the second pushing member extends along the carrier conveying direction, and the second pushing drive member can drive the second pushing member to push multiple carriers at once.

[0018] Compared to existing technologies, this solution offers several advantages. By employing individual, separate carriers arranged in the conveying direction, the pushing component can advance one or more carriers from the guide rail at the loading position to the rail at the unloading position. The carriers pushed to the unloading position are all those that have been detected by sensors as containing material. This ensures that the material is fully loaded when the robotic arm removes it from the unloading position, guaranteeing 100% full packaging at the output. Furthermore, because the robotic arm retrieves material from the carriers, each carrier has an equal width, eliminating the need for the robotic arm to determine the material's position before each retrieval. This reduces the difficulty of grasping and recognition, and lowers manufacturing costs. It effectively solves technical problems such as insufficient material during cartoning, improves production efficiency, and reduces manufacturing costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a circulating conveying device shown in this application;

[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0021] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle;

[0022] Figure 4 This is a schematic diagram of the lifting sliding assembly and the lifting positioning assembly shown in this application;

[0023] Figure 5 This is a schematic diagram of the lifting and sliding assembly shown in this application;

[0024] Figure 6 This is a schematic diagram of the lifting guide assembly shown in this application;

[0025] Figure 7 This is a schematic diagram of another embodiment of the lifting guide assembly shown in this application;

[0026] Figure 8 This is a schematic diagram of the vehicle stop assembly shown in this application.

[0027] In the diagram, 10 is the support frame;

[0028] 20. Guide rail; 21. Feeding guide rail; 22. Unloading guide rail;

[0029] 30. Carrier; 31. Positioning hole; 32. Guide roller; 33. Positioning groove;

[0030] 40. Conveying assembly; 41. Conveyor belt;

[0031] 51. Lifting and sliding assembly; 511. Lifting component one; 512. Lifting drive component one; 513. Roller one; 514. Through hole; 515. Lifting guide component one; 516. Connecting component one; 52. Lifting and positioning assembly; 521. Lifting component two; 522. Lifting drive component two; 523. Positioning rod; 524. Lifting guide component two; 525. Connecting component two;

[0032] 60. Lifting guide assembly; 61. Roller II; 62. Lifting guide block I; 63. Connector III; 64. Lifting guide component III; 65. Lifting drive component III; 66. Lifting guide block II;

[0033] 71. Pushing Component 1; 711. Pushing Part 1; 712. Pushing Driver Component 1; 713. Pushing Guide Component; 714. Material Sensing Component; 72. Pushing Component 2; 721. Pushing Part 2; 722. Pushing Driver Component 2;

[0034] 80. Blocking components;

[0035] 90. Vehicle stop assembly; 91. Stop protrusion; 92. Blocking positioning post; 93. Lifting component three; 94. Lifting guide component four; 95. Connecting component four; 96. Lifting drive component four. Detailed Implementation

[0036] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in. They are only for the convenience of describing this application 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 application.

[0039] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0040] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.

[0041] Example 1:

[0042] See Figures 1 to 7 A circulating conveying device includes a support frame 10 fixed to a workbench and a conveying assembly 40. Two parallel guide rails 20 are provided on the support frame 10 to guide carriers 30. Multiple carriers 30 are placed within the guide rails 20 and rest on the conveyor belts 41 of the conveying assembly 40. The conveyor belts 41 within the two guide rails 20 have opposite transmission directions, and the carriers 30 are moved by the conveyor belts 41 while their movement is restricted by the guide rails 20. Lifting and sliding assemblies 51 are provided at both ends of each guide rail 20, namely the conveying start area and the conveying end area. A lifting guide assembly 60 is provided between the lifting and sliding assemblies 51 within the two guide rails 20. One of the two guide rails 20 has a loading position, and the other has a unloading position.

[0043] It should be noted that the loading position is where materials are placed onto the carrier 30. The unloading position is where materials are removed from the carrier 30.

[0044] The guide rail 20 with a loading position is called the loading guide rail 21. A pushing component 71 and a material sensor 714 are installed on one side of the loading guide rail 21. The pushing component 71 is fixed to a worktable near the conveying end of the loading guide rail 21. The material sensor 714 can be fixed together with the pushing component 71 at the loading position, or it can be fixed somewhere between the beginning and end of the loading guide rail 21. The other guide rail 20 with a picking position is called the picking guide rail 22. A pushing component 72 is installed on one side of the picking guide rail 22 and is fixed to a worktable near the conveying end of the picking guide rail 22.

[0045] It should be noted that the term "end" and "ends" mentioned in this article refer to interval segments, not one or two endpoints.

[0046] In the operation of the circulating conveyor, materials are placed on carriers 30 located at the loading position. The materials placed on the carriers 30 can be detected by the material sensor 714 to determine which carriers 30 have materials. When the carriers 30 are conveyed to the end area of ​​the loading guide rail 21, the lifting and sliding components 51 on both guide rails 20 are raised simultaneously. The lifting and sliding components 51 on the loading guide rail 21 raise multiple carriers 30. Then, according to the identification by the material sensor 714, the pushing component 71 pushes the carriers 30 with materials from the lifting and sliding components 51 on the loading guide rail 21 to the lifting and sliding components 51 on the picking guide rail 22. The lifting and sliding components 51 on the picking guide rail 22 descend, and the carriers 30 fall onto the conveyor belt 41, which carries them towards the picking position. After the carrier 30 reaches the material-retrieving position, the material on the carrier 30 is grasped by the robotic arm, and the carrier 30 is then lifted by the lifting and sliding assembly 51. The pushing assembly 72 then pushes the carrier 30 from the lifting and sliding assembly 51 of the material-retrieving guide rail 22 onto the lifting and sliding assembly 51 of the loading guide rail 21. Through this process, the carrier 30 completes a cycle from the loading guide rail 21 to the material-retrieving guide rail 22 and back to the loading guide rail 21. Only carriers 30 with material will enter the cycle during this process, ensuring that all carriers 30 at the material-retrieving position have material, thus solving the technical problem of insufficient material during packaging after the robotic arm has grasped the material.

[0047] It should be noted that the end area of ​​the feeding guide rail 21 is the feeding position, and the end area of ​​the unloading guide rail 22 is the unloading position.

[0048] It should be noted that the conveying component 40 can be any mechanism that performs the function of translational conveying, such as chain drive mechanism, synchronous belt drive mechanism, flat belt drive mechanism, plate chain drive mechanism, etc. It can be understood that the conveyor belt 41 can be composed of conveying plates installed on a chain or plate chain, or it can be a synchronous belt, flat belt, etc.

[0049] Further, see Figure 2 and Figure 3 The circulating conveying device also includes a blocking element 80, which is located at the conveying end point of the conveying assembly 40, that is, the end area of ​​the guide rail 20. The blocking element 80 prevents the carrier 30 from colliding with the fixed seat of the conveying assembly 40. The blocking element 80 can be made of a soft or elastic material to provide shock absorption. It is understood that the blocking element 80 can also be a buffer.

[0050] Further, see Figure 4The carrier 30 has guide rollers 32, which are installed on both sides of the carrier 30. When the carrier 30 moves on the guide rail 20, the guide rollers 32 roll and rub against the side wall of the guide rail 20.

[0051] Further, see Figure 2 The pushing component 71 includes a pushing member 711, a pushing drive member 712, and a pushing guide member 713. The driving end of the pushing drive member 712 is connected to the pushing member 711, driving the pushing member 711 to move along a direction perpendicular to the movement of the carrier 30. After the pushing component 71 moves, it pushes the carrier 30 on the lifting and sliding component 51 to move. The pushing member 711 is slidably disposed on the pushing guide member 713, and the pushing guide member 713 restricts the movement trajectory of the pushing member 711, thus limiting the movement direction of the pushing member 711. Multiple pushing components 71 are arranged along the movement direction of the carrier 30 and are disposed on the side of the loading guide rail 21 away from the unloading guide rail 22.

[0052] It should be noted that the push drive component 712 can be either a pneumatic cylinder or an electric cylinder. The push component 711 can be a single unit comprising a pusher for pushing the carrier 30 and a rod-shaped sliding part, the sliding part sliding on the push guide 713. It is understood that the pusher and the sliding part are two separable parts connected together. The push guide 713 can be a linear bearing housing, a groove, a slide block, or other guiding component.

[0053] Further, see Figure 4 and Figure 5 The lifting and sliding assembly 51 includes a lifting member 511, a lifting guide 515, a connecting member 516, a lifting drive 512, and rollers 513. The lifting guide 515 is fixedly mounted on the worktable, and the connecting member 516 slides through the lifting guide 515, limiting the vertical sliding trajectory of the connecting member 516. One end of the connecting member 516 is connected to the lifting drive 512, and the other end is connected to the lifting member 511. The lifting drive 512 drives the connecting member 516 to move, thereby causing the lifting member 511 to move up and down. Multiple rows of rollers 513 are provided on the side of the lifting member 511 away from the lifting drive 512, with each row including at least two rollers 513. After the lifting drive 512 drives the lifting member 511 to lift, the carrier 30, which was originally on the conveyor belt 41, is lifted and raised by the rollers 513 on the lifting member 511. Vehicle 30 is pushed along the rollers by pusher component 71.

[0054] It should be noted that the lifting component 511 is a flat plate, and the rollers 513 are fixed to this flat plate. The lifting component 511 may also include a sheet metal part with multiple notches, which encloses multiple rollers 513, exposing only part of the wheels. This prevents the vehicle 30 from falling when tilted. Even if the vehicle 30 shakes during movement, the sheet metal part will prevent it from tipping over once one side of the vehicle 30 contacts the sheet metal part.

[0055] Further, see Figure 6 and Figure 7 The lifting guide assembly 60, positioned between the two lifting and sliding assemblies 51, will also lift or lower when the lifting and sliding assemblies 51 are raised or lowered. The lifting guide assembly 60 includes roller 2 61, a lifting guide block, a connecting member 3 63, a lifting guide component 3 64, and a lifting drive component 3 65. The lifting guide component 3 64 is fixedly mounted on the worktable, and the connecting member 3 63 slides through it. One end of the connecting member 3 63 is connected to the lifting drive component 3 65, and the other end is connected to the lifting guide block. The lifting guide block is raised or lowered by the drive of the lifting drive component 3 65. Roller 2 61 is mounted on the lifting guide block. When the lifting and sliding assembly 51 raises the carrier 30, the lifting guide assembly 60 lowers the lifting guide block so that the highest point of roller 2 61 is at the same height as the highest point of roller 1 513 in the lifting and sliding assembly 51. Thus, when the carrier 30 is pushed, roller 2 61 can assist in sliding the carrier 30. The initial position of the lifting guide block is at the same height as the side wall of the guide rail 20, serving as the side wall for a certain segment of the guide rail 20's travel, and is used to limit the movement trajectory of the vehicle 30. (See...) Figure 2 .

[0056] It should be noted that when the lifting guide assembly 60 lifts the vehicle 30, the vehicle 30 directly contacts the rollers, and the vehicle 30 slides forward on the rollers after being pushed.

[0057] Further, see Figure 6The lifting guide assembly 60 includes multiple rollers 61, multiple lifting guide blocks, multiple connectors 63, and multiple lifting drive components 65. Each lifting guide block is a lifting guide block 62, and each lifting guide block 62 is connected to a roller 61. Each lifting drive component 65 independently drives a connector 63, thereby causing each lifting guide block 62 to lift and lower independently. The movement of each lifting guide block 62 is independent. This design is to work in conjunction with the pusher component 711. After the lifting sliding assembly 51 raises the carrier 30, the material sensor 714 identifies which carriers 30 have material. The multiple pushers 711 then push the carriers 30 containing material according to the signal from the material sensor 714. Before the pusher 711 pushes, the lifting guide assembly 60 lowers the lifting guide block 62 corresponding to the material position according to the signal from the material sensor 714. The lifting guide block 62 lowers until its roller 61 is aligned with the highest position of the roller 513 on the already raised lifting sliding assembly 51. This design prevents the carrier 30 without material from being moved by friction when the pusher 711 pushes the carrier 30 with material.

[0058] Further, see Figure 7 The lifting guide assembly 60 includes multiple rollers 61, and the lifting guide block is a long strip-shaped lifting guide block 66. The multiple rollers 61 are arranged along the length of the lifting guide block 66. A row of rollers 61 is mounted on the lifting guide block 66, and these rollers 61 move together with the lifting guide block 66. When it is necessary to push the entire row of vehicles 30, the rollers 61 are lowered by the lifting guide block 66 until they are at the same height as the rollers 513 on the lifting sliding assembly 51. The vehicles 30 need to slide on the rollers 513 and the rollers 61.

[0059] Further, see Figure 5The first lifting component 511 has a through hole 514, and the bottom of the carrier 30 has a positioning hole 31. The circulating conveying device also has a lifting and positioning assembly 52, which is located at the end of the conveying area of ​​the guide rail 20. The lifting and positioning assembly 52 cooperates with the lifting and sliding assembly 51. When the material is placed on the carrier 30, the lifting and positioning assembly 52 has already restricted the carrier 30 to a specific position, so that the material can be accurately placed on the carrier 30. The lifting and positioning assembly 52 includes a second lifting component 521, a second lifting drive component 522, a second lifting guide component 524, and a second connecting component 525. The second lifting guide component 524 is fixedly installed on the workbench, and the second connecting component 525 passes through the second lifting guide component 524. One end of the second connecting component 525 is connected to the second lifting component 521, and the other end is connected to the second lifting drive component 522. A positioning rod 523 is connected to the second lifting component 521, and the positioning rod 523 is used to cooperate with the positioning hole 31 of the carrier 30. The second lifting drive component 522 can drive the positioning rod 523 to rise. After rising, the positioning rod 523 can pass through the through hole 514. When the carrier 30 is above the lifting sliding assembly 51, the positioning rod 523 can be inserted into the positioning hole 31. When the lifting sliding assembly 51 raises the carrier 30, the positioning rod 523 also moves downward under the drive of the lifting positioning assembly 52. ​​In one embodiment, there is only one second lifting component 521 and multiple positioning rods 523, with at least two rows of positioning rods 523 arranged along the conveying direction of the carrier 30 in the guide rail 20. This can reduce the number of second lifting drive components 522 and achieve the effect of synchronous lifting of all positioning rods 523. In another embodiment, the lifting positioning assembly 52 has multiple second lifting components 521, connecting components 525, and lifting drive components 522. Each second lifting component 521 is provided with two positioning rods 523, and the multiple second lifting components 521 are arranged along the conveying direction of the carrier 30 in the guide rail 20. Each lifting component 2 521 is individually connected to a connecting component 2 525, and each lifting drive component 2 522 independently drives the lifting component 2 521 to rise and fall. The advantage of this design is that when the material sensor 714 detects and determines which carriers 30 are without material, the corresponding lifting component 2 521 for that carrier 30 will not descend, keeping the positioning rod 523 inserted in the positioning hole 31. When a carrier 30 with material is pushed, the carriers 30 without material are restricted by the positioning rod 523 and will not move. This implementation scheme can be used in conjunction with the aforementioned scheme of multiple lifting guide blocks 1 62 to restrict the carriers 30, ensuring that carriers 30 with material are pushed while carriers 30 without material remain stationary.

[0060] Further, see Figure 4The carrier 30 has a positioning groove 33 on its side. The circulating conveying device also has a carrier stop assembly 90, the height of which is lower than the conveying plane of the carrier 30. The carrier stop assembly 90 includes a lifting member 93, a lifting guide 94, a connecting member 95, and a lifting drive 96. The lifting guide 94 is fixedly mounted on the worktable. The connecting member 95 passes through the lifting guide 94, with one end connected to the lifting member 93 and the other end connected to the lifting drive 96. The lifting drive 96 can drive the lifting member 93 to rise or fall. The lifting member 93 is provided with a stop protrusion 91, which the lifting drive 96 can drive to rise and insert into the positioning groove 33 on the side of the carrier 30. When the carriers 30 are stationary on the guide rail 20, the stop protrusion 91 rises from below the carriers 30 and extends into the positioning groove 33 on the side of the carriers 30, stopping the carriers 30 in front of the material picking or loading positions. After the carriers 30 at the material picking or loading positions are lifted by the lifting and sliding assembly 51, the carriers 30 that continue to be conveyed by the conveyor belt 41 are stopped by the stop protrusion 91, thus preventing the carriers 30 from interfering with the operation of the lifting and sliding assembly 51.

[0061] It should be noted that the positioning grooves 33 of the carrier 30 are located on both sides of the carrier 30. Because the carrier 30 in front of the material pick-up position and the material drop-off position needs to be stopped, and the conveying direction of the carrier 30 is different, both carriers 30 need positioning grooves 33 to cooperate with the stop protrusions 91.

[0062] Another implementation method is described in [link to implementation]. Figure 4 and Figure 8 Based on the positioning hole 31 at the bottom of the carrier 30, the blocking protrusion 91 and positioning groove 33 can be replaced by the blocking positioning post 92 on the lifting member 33 in conjunction with the positioning hole 31 of the carrier 30 to stop the carrier 30. The circulating conveying device also has a carrier stop assembly 90, which includes a lifting member 33, a lifting guide 44, a connecting member 45, and a lifting drive 46. The lifting guide 44 is fixedly mounted on the worktable, and the connecting member 45 passes through the lifting guide 44. One end of the connecting member 495 is connected to the lifting member 33 and the other end is connected to the lifting drive 496. The lifting member 33 is provided with a blocking positioning post 92, and the lifting drive 496 can drive the blocking positioning post 92 to rise and insert into the positioning hole 31 at the bottom of the carrier 30.

[0063] It should be noted that the support component 3 93 can be equipped with both a stop protrusion 91 and a blocking positioning post 92.

[0064] Further, see Figure 3The materials on several carriers 30 at the material picking position are removed together, and these carriers 30 need to be pushed onto another guide rail 20. There is no need to distinguish between each carrier 30 individually; the pushing component 2 72 directly pushes multiple carriers 30 together. The pushing component 2 72 includes a pushing element 2 721 and a pushing drive element 2 722. The length of the pushing element 2 721 extends along the conveying direction of the carrier 30, and the pushing drive element 2 722 can drive the pushing element 2 721 to push multiple carriers 30 at once. The lifting and sliding component 51 raises the multiple carriers 30, and the lifting guide component 60 lowers. It is understood that the lifting guide component 60 here uses the scheme described above, where multiple rollers 2 61 are set on a single lifting guide block 2 66. Pusher 2 721 pushes multiple vehicles 30 from one lifting sliding assembly 51 to another lifting sliding assembly 51. During the process, the vehicles 30 slide on the first roller 513 of the lifting sliding assembly 51 and the second roller 61 of the lifting guide assembly 60, respectively.

[0065] It should be noted that all lifting guide components mentioned above can be linear bearings, sliders, sliding sleeves, or other parts with sliding and guiding functions. All connecting components can be guide rods, slide rails, or other parts that can mate with the guiding components. All lifting and pushing drive components can be power components such as cylinders or electric cylinders.

[0066] It should be noted that the material sensing element 714 can be a photoelectric sensor, fiber optic sensor, CCD camera, or other sensing element with detection function.

Claims

1. A circulating conveying device comprising a support frame (10) and a conveying assembly (40) disposed on a workbench, characterized in that, Two guide rails (20) are arranged in parallel on the support frame (10). Multiple carriers (30) are placed in the guide rails (20). A conveying assembly (40) is located below the carriers (30). The conveying assembly (40) includes a conveyor belt (41). The conveyor belts (41) in the two guide rails (20) have opposite transmission directions. The carriers (30) are placed on the conveyor belts (41) and their movement trajectory is restricted by the guide rails (20). Lifting and sliding assemblies (51) are provided at both ends of each guide rail (20). Lifting and sliding assemblies (51) in different guide rails (20) are connected by lifting and guiding assemblies (60). One of the two guide rails (20) has a loading position and the other has a picking position. A pushing assembly (71) and a material sensor (714) are installed on one side of the guide rail (20) with the loading position. A pushing assembly (72) is installed on one side of the guide rail (20) with the picking position.

2. The circulating conveying device according to claim 1, characterized in that, The circulating conveying device further includes a blocking element (80), which is disposed at the conveying end point of the conveying assembly (40).

3. The circulating conveying device according to claim 1, characterized in that, The carrier (30) has guide rollers (32) mounted on both sides of the carrier (30), and the carrier (30) moves on the guide rail (20) via the guide rollers (32).

4. The circulating conveying device according to claim 1, characterized in that, The first push component (71) includes a first pusher (711), a first pusher driver (712), and a first pusher guide (713), wherein the first pusher driver (712) drives the first pusher (711) to move, and the first pusher guide (713) connects to the first pusher (711) and restricts the movement trajectory of the first pusher (711). A plurality of the first push components (71) are arranged along the movement direction of the carrier (30).

5. The circulating conveying device according to claim 1, characterized in that, The lifting and sliding assembly (51) has a lifting member (511), a lifting guide (515), a connecting member (516), a lifting drive (512), and rollers (513). The lifting guide (515) is fixedly installed on the workbench. The connecting member (516) slides through the lifting guide (515). One end of the connecting member (516) is connected to the lifting drive (512), and the other end is connected to the lifting member (511). The lifting drive (512) drives the connecting member (516) to move, thereby driving the lifting member (511) to move up and down. The lifting member (511) is provided with a plurality of rollers (513).

6. The circulating conveying device according to claim 5, wherein The lifting guide assembly (60) includes a second roller (61), a lifting guide block, a third connector (63), a third lifting guide component (64), and a third lifting drive component (65). The third lifting guide component (64) is fixedly mounted on the worktable. The third connector (63) slides through the third lifting guide component (64). One end of the third connector (63) is connected to the third lifting drive component (65), and the other end is connected to the lifting guide block. The second roller (61) is mounted on the lifting guide block.

7. The circulating conveying device according to claim 6, characterized in that, The lifting guide assembly (60) includes multiple rollers (61), multiple lifting guide blocks, multiple connectors (63), and multiple lifting drive components (65). The lifting guide block is a lifting guide block (62). Each lifting guide block (62) is connected to a roller (61). Each lifting drive component (65) independently drives a connector (63) to drive each lifting guide block (62) to lift and lower independently.

8. The circulating conveying device according to claim 6, characterized in that, The lifting guide assembly (60) includes a plurality of rollers (61), and the lifting guide block is a long strip-shaped lifting guide block (66). The plurality of rollers (61) are arranged along the length direction of the lifting guide block (66).

9. The circulating conveying device according to claim 5, characterized in that, The first lifting member (511) is provided with a through hole (514), the bottom of the carrier (30) is provided with a positioning hole (31), and the circulating conveying device is also provided with a lifting and positioning assembly (52). The lifting and positioning assembly (52) is provided at least in the conveying end area of ​​the guide rail (20). The lifting and positioning assembly (52) includes a second lifting member (521), a second lifting drive member (522), a second lifting guide member (524), and a second connecting member (525). The second lifting guide member (524) is fixedly set on the workbench, and the second connecting member (525) is fixedly set on the workbench. 5) The second connector (525) is installed in the lifting guide (524). One end of the second connector (525) is connected to the second support (521) and the other end is connected to the second lifting drive (522). The second support (521) is connected to a positioning rod (523). The second lifting drive (522) can drive the positioning rod (523) to rise. After the positioning rod (523) is raised, it can pass through the through hole (514). When the carrier (30) is above the lifting sliding assembly (51), the positioning rod (523) can be inserted into the positioning hole (31).

10. The circulating conveying device according to claim 1, characterized in that, The carrier (30) has a positioning groove (33) on its side. The circulating conveying device also has a carrier stop assembly (90). The carrier stop assembly (90) includes a lifting member three (93), a lifting guide four (94), a connecting member four (95), and a lifting drive four (96). The lifting guide four (94) is fixedly mounted on the workbench. The connecting member four (95) passes through the lifting guide four (94). One end of the connecting member four (95) is connected to the lifting member three (93), and the other end is connected to the lifting drive four (96). The lifting member three (93) is provided with a stop protrusion (91). The lifting drive four (96) can drive the stop protrusion (91) to rise and insert into the positioning groove (33) on the side of the carrier (30).

11. The circulating conveying device according to claim 1, characterized in that, The carrier (30) has a positioning hole (31) at the bottom. The circulating conveying device also has a carrier stop assembly (90). The carrier stop assembly (90) includes a lifting member three (93), a lifting guide four (94), a connecting member four (95), and a lifting drive four (96). The lifting guide four (94) is fixedly installed on the workbench. The connecting member four (95) passes through the lifting guide four (94). One end of the connecting member four (95) is connected to the lifting member three (93), and the other end is connected to the lifting drive four (96). The lifting member three (93) is provided with a blocking positioning post (92). The lifting drive four (96) can drive the blocking positioning post (92) to rise and insert into the positioning hole (31) at the bottom of the carrier (30).

12. The circulating conveying device according to claim 1, characterized in that, The second push component (72) includes a second pusher (721) and a second pusher (722). The length of the second pusher (721) extends along the conveying direction of the vehicle (30). The second pusher (722) can drive the second pusher (721) to push multiple vehicles (30) at one time.

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