Rail switching mechanism and conveying rail

Abstract

The utility model provides a track switching mechanism which comprises a guiding piece and a material blocking piece, the guiding piece is connected with a first displacement assembly, and the material blocking piece is connected with a second displacement assembly. The first displacement assembly controls the guiding part to enter the first track or exit, and the second displacement assembly controls the material blocking part to enter the first track or exit. The material blocking part is used for blocking the objects conveyed by the first rail when the objects are about to approach the guiding part so as to block scanning, and the guiding part is used for guiding the objects conveyed by the first rail to the second rail. According to the utility model, the conveying and switching orderliness of objects such as sample containers and the like can be ensured, the objects are blocked by the material blocking rod, so that the objects are static on the first track to scan and confirm information, whether the tracks need to be switched or not is judged, and the objects are guided from the first track to the second track by the guide plate when the tracks need to be switched. And associated control of the material blocking rod and the guide plate can be completed through a set of driving piece. The utility model further provides a conveying track.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation, in particular to a track switching mechanism and a transportation track. Background Art

[0002] Based on the needs of automated analysis, sample conveying devices are widely used in precision instruments such as biochemical analyzers, chemiluminometers, urine analyzers, nucleic acids, and laboratory assembly line analysis systems. In the early days, a single-machine analysis and diagnosis mode was generally adopted, and only a rotating sample disk was used to provide test samples. The sample delivery amount of this sample conveying device was limited each time, which restricted the sample testing speed. With the development of medical diagnostic technology, the single-machine analysis mode of the above-mentioned rotating sample disk sample supply method can no longer meet the needs of fast and efficient diagnosis. Instead, a single or multiple fully automatic diagnostic analyzers with higher efficiency are used. The analysis samples involved include ordinary samples, emergency samples, and return samples. The matching sample conveying device needs to deliver different samples to the corresponding functional units. For example, the sample containers containing emergency samples and ordinary samples are accurately transferred from the sample distribution system to different diagnostic analyzers in the sample analysis system, and the diagnostic analyzers are used to complete sample extraction and sample analysis, and the sample containers containing recovered samples are transferred to the sample recovery area in the sample distribution system. In some cases, such as differences in the diagnostic efficiency of different diagnostic analyzers, changes in the detection requirements of the process samples themselves, etc., ordinary samples being transported need to be converted into emergency samples, or emergency samples being transported need to be converted into ordinary samples.

[0003] The prior art discloses a sample conveying system with a conveying and returning function, which is provided with a sample rack track switching device, including an L-shaped support seat arranged perpendicular to the sample rack transmission direction, a horizontal slide rail arranged on one side of the vertical plate of the L-shaped support seat, and a first and a second track changing mechanism with the same structure arranged on the horizontal slide rail through a slider. In a non-working state, the first and the second track changing mechanisms correspond to the sample recovery track and the emergency sample track, respectively. When working, the first track changing mechanism moves to a position corresponding to the conventional sample track under the action of a synchronous belt transmission mechanism, and after the sample rack to be returned enters the track changing track of the first track changing mechanism, it returns to a position corresponding to the sample recovery track, so that the sample rack enters the sample recovery track, and in this process, the position of the second track changing mechanism remains unchanged; when the sample located on the emergency sample track needs to be returned, the first track changing mechanism moves to the corresponding position of the emergency sample track, and the damping block pushes the second track changing mechanism away from the original position, and when the first track changing mechanism returns to the corresponding position of the sample recovery track, the second track changing mechanism returns to the original position under the action of a reset spring. This solution guides the movement of the sample rack by switching the track, and its efficiency and orderliness can be further improved. Utility Model Content

[0004] The purpose of the utility model is to provide a more efficient and orderly track switching mechanism and conveying track in view of the deficiencies existing in the above-mentioned background technology.

[0005] In order to achieve the above object, the utility model provides a track switching mechanism, including a guide member and a material stopper, wherein the guide member is connected to a first displacement assembly, and the material stopper is connected to a second displacement assembly;

[0006] The first displacement component controls the guide member to enter or exit the first track, and the second displacement component controls the material blocking member to enter or exit the first track;

[0007] The material blocking member is used to block the object transported by the first track when it is about to approach the guide member to prevent scanning, and the guide member is used to guide the object transported by the first track to the second track.

[0008] Furthermore, the guide member is a guide plate, the guide plate is provided with a guide surface, and the guide surface is an inclined surface or an arc-shaped surface.

[0009] Furthermore, the material blocking member is a material blocking rod.

[0010] Furthermore, the first displacement assembly includes a support plate connected to the guide member and a linear drive portion, and the linear drive portion is connected to the support plate to drive the support plate to move.

[0011] Furthermore, the linear driving part includes a linear guide rod and a mounting base plate, a first slider is slidably arranged on the linear guide rod, the first slider is connected to the support plate, the linear guide rod is connected to the mounting base plate, a screw rod parallel to the linear guide rod and a screw rod driving motor are also arranged on the mounting base plate, the screw rod is threadedly matched with the first slider, and the screw rod driving motor is transmission-connected to the screw rod.

[0012] Furthermore, the second displacement assembly includes a connecting plate, a linear guide rail and a guide rail mounting plate, the connecting plate is connected to the material blocking rod, the connecting plate is slidably connected to the linear guide rail through a second slider, the linear guide rail is connected to the guide rail mounting plate, a bearing is rotatably arranged on the connecting plate, an inclined block matching the bearing is arranged on the support plate, and an elastic member is also arranged between the guide rail mounting plate and the connecting plate.

[0013] Furthermore, the elastic member is a return spring, and spring screws are provided on the connecting plate and the guide rail mounting plate, and both ends of the return spring are connected to the corresponding spring screws.

[0014] Furthermore, the guide rail mounting plate is also provided with limiting screws.

[0015] Furthermore, a switching opening is provided between the first track and the second track, and the switching opening corresponds to the guide member. A notch is also provided on the first track, and the notch corresponds to the guide member and the material blocking member.

[0016] The utility model also provides a conveying track, comprising a first track, a second track and the track switching mechanism as described above.

[0017] The above solution of the utility model has the following beneficial effects:

[0018] The track switching mechanism and the conveying track provided by the utility model can ensure the orderliness of conveying and switching of objects such as sample containers through the arrangement of the guide plate, the material blocking rod and the corresponding displacement assembly, and the material blocking rod is used to block the object, so that the object is stationary on the first track to scan and confirm the information, and then it is determined whether the track needs to be switched. When switching is required, the guide plate guides the object from the first track to the second track;

[0019] In the utility model, the actions of the blocking rod and the guide plate are performed in association, and the association control of the blocking rod and the guide plate can be completed through a set of driving parts by relying on the bearing of the second displacement assembly and the inclined block of the first displacement assembly, which simplifies the control design, reduces the possibility of error, and reduces the equipment cost;

[0020] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the track switching mechanism of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the conveying track of the utility model;

[0023] Figure 3 It is a schematic diagram of the guide plate of the utility model;

[0024] Figure 4 This is a schematic diagram of the linear drive unit of the utility model;

[0025] Figure 5 It is a schematic diagram of the cooperation between the bearing and the inclined block of the utility model.

[0026] [Description of Reference Numerals]

[0027] 1-guide plate; 2-guide surface; 3-first track; 4-second track; 5-switch port; 6-support plate; 7-linear guide rod; 8-first slider; 9-mounting base plate; 10-screw; 11-screw drive motor; 12-block rod; 13-connecting plate; 14-second slider; 15-linear guide rail; 16-guide rail mounting plate; 17-bearing; 18-bevel block; 19-reset spring; 20-spring screw; 21-limit screw. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1 , Figure 2As shown, an embodiment of the utility model provides a track switching mechanism for switching between two adjacent tracks of a conveying track, transferring sample containers and the like from one track to another track for conveying, for example, transferring sample containers from a common track to an emergency track, or transferring sample containers from an emergency track to a common track. Correspondingly, the two tracks are usually arranged adjacent to each other to facilitate the sample container to switch tracks quickly and smoothly.

[0032] The track switching mechanism comprises a guide plate 1 and a first displacement assembly, wherein the guide plate 1 has a guide surface 2, and Figure 3 As shown, it is configured as an inclined surface or an arc-shaped surface inclined with respect to the track conveying direction. When the sample container needs to switch tracks, i.e., transfer from the first track 3 to the second track 4, the guide plate 1 enters the first track 3 from the outside of the first track 3, so that the sample container can contact the guide surface 2, thereby moving along the guide surface 2 and being guided into the second track 4.

[0033] It should be noted that the first track 3, the second track 4, etc. all use a conveyor belt to continuously transport the sample container, and the conveyor belt provides a static friction force to transport the sample container forward. When the sample container contacts the guide surface 2, the guide surface 2 can provide a reaction force, and its component force can allow the sample container to enter the second track 4 from the switching port 5 between the first track 3 and the second track 4, and then be transported along the second track 4 to complete the track switching.

[0034] It should be noted that the first track 3 and the second track 4 can be respectively a normal track and an emergency track, or an emergency track and a normal track, or others, and the first track 3 and the second track 4 can share the same track wall to reduce the gap between the first track 3 and the second track 4. The switching port 5 is opened on the middle track wall. As a preferred embodiment, when the guide plate 1 moves to the inside of the first track 3 for guidance, the end of the guide surface 2 is flush with the rear edge of the switching port 5 to make full use of the width of the switching port 5 so that the sample container moving along the guide surface 2 can smoothly enter the second track 4.

[0035] In this embodiment, the first displacement assembly includes a support plate 6 connected to the guide plate 1. The top of the support plate 6 is detachably connected to the guide plate 1 by bolts, and the bottom of the support plate 6 is arranged on the linear drive part. The support plate 6 and the guide plate 1 are driven by the linear drive part, so that the guide plate 1 can move into the first track 3 to switch tracks, or exit the first track 3 to reset. Figure 4As shown, the linear drive unit includes a linear guide rod 7 and a mounting base plate 9, a first slider 8 is slidably arranged on the linear guide rod 7, and the first slider 8 is connected to the bottom of the support plate 6. The linear guide rod 7 is connected to the mounting base plate 9, and a screw rod 10 parallel to the linear guide rod 7 and a screw drive motor 11 are also arranged on the mounting base plate 9. The positions of the first slider 8, the support plate 6, and the guide plate 1 are adjusted by the threaded fit between the screw rod 10 and the first slider 8, and the drive of the screw drive motor 11. Of course, in other embodiments, other types of linear drive units can also be provided, such as electric push rod direct drive, etc., which are not specifically limited here.

[0036] As a further improvement, a material stopping rod 12 is also provided in this embodiment. The material stopping rod 12 is located at a position further forward of the first track 3 relative to the guide plate 1. The material stopping rod 12 is connected to a second displacement assembly. The position of the material stopping rod 12 is controlled by the second displacement assembly so that the material stopping rod 12 enters the first track 3 or exits the first track 3.

[0037] The purpose of setting the material blocking rod 12 is that when the sample container of the first track 3 is delivered, the label on the sample container can be scanned by the RFID reader / writer head, so that the system can determine whether the track switching is required. Since the sample container is preferably kept still when the RFID reader / writer head is scanning, the material blocking rod 12 is used to block and scan each sample container transported on the first track 3 when it is about to approach the switching port 5, and then exit and make way for the first track 3 after confirming whether the track switching is required. At this time, based on the judgment of whether the track switching is required, it is determined whether to move the guide plate 1 into the first track 3.

[0038] As described above, the material blocking rod 12 and the guide plate 1 are associated and move, so the second displacement assembly can be set to be associated with the first displacement assembly. Specifically in this embodiment, the second displacement assembly includes a connecting plate 13, a linear guide rail 15 and a guide rail mounting plate 16. The top of the connecting plate 13 is detachably connected or fixedly connected to the material blocking rod 12 by bolts, and the bottom of the connecting plate 13 is slidably connected to the linear guide rail 15 by a second slider 14. The linear guide rail 15 is set on the guide rail mounting plate 16. The connecting plate 13 and the material blocking rod 12 can move along the direction of the linear guide rail 15, so that the material blocking rod 12 enters the first track 3 to block or exit. At the same time, a bearing 17 (or a roller) is provided on the connecting plate 13, and the bearing 17 is freely rotatably connected to the connecting plate 13, and an inclined block 18 corresponding to the bearing 17 is provided on the support plate 6, and the inclined surface of the inclined block 18 contacts the bearing 17, and the bearing 17 can roll along the inclined block 18. In addition, a return spring 19 is provided between the guide rail mounting plate 16 and the connecting plate 13 , and the return spring 19 is used to provide an elastic return force to the connecting plate 13 .

[0039] When the guide plate 1 is outside the first track 3, the bearing 17 contacts the first end of the inclined surface of the inclined block 18. At this time, the connecting plate 13 moves to the first position of the linear guide 15 under the action of the reset spring 19, so that the material blocking rod 12 is located in the first track 3. The sample container in the first track 3 moves to the position of the material blocking rod 12 and stops, and the scanning is confirmed. If there is no need to switch the track, the support plate 6 moves toward the first track 3 under the action of the screw drive motor 11, so that the inclined surface of the inclined block 18 moves relative to the bearing 17 until the bearing 17 contacts a certain position in the middle of the inclined surface. At this time, the connecting plate 13 overcomes the elastic force of the reset spring 19 and moves to the second position of the linear guide 15. The material blocking rod 12 can just withdraw from the first track 3, and the guide plate 1 has not yet entered the first track 3 at this time, so the sample container can continue to be transported from the first track 3. If it is necessary to switch the track, the support plate 6 continues to move toward the first track 3 under the action of the screw drive motor 11 until the bearing 17 contacts the second end of the inclined surface. Figure 5 As shown, the blocking rod 12 is further away from the first track 3 , and the guide plate 1 has completely entered the first track 3 , so that the sample container can be transferred from the first track 3 to the second track 4 for transportation.

[0040] Of course, in other embodiments, the second displacement assembly can also drive the material blocking rod 12 alone through a driving member, as long as the consistency of the control steps is ensured. Relatively speaking, the association method provided in this embodiment can save a set of driving members, so it is a more preferred implementation method.

[0041] It should be noted that in this embodiment, spring screws 20 are provided on the connecting plate 13 and the guide rail mounting plate 16, and the two ends of the hook of the reset spring 19 are sleeved by the spring screws 20, which is convenient for installation. In addition, the guide rail mounting plate 16 is also provided with a limit screw 21. When the connecting plate 13 moves to the first position of the linear guide rail 15 under the action of the reset spring 19, the second slider 14 contacts the limit screw 21 to prevent further movement and moving out of the linear guide rail 15.

[0042] In this embodiment, the guide rail mounting plate 16 is detachably mounted on the mounting base plate 9 by bolts, and the mounting base plate 9 is detachably mounted on one side of the first track 3 by bolts. The support plate 6 and the connecting plate 13 are arranged to allow the guide plate 1 and the material stop rod 12 to be at a suitable height position, and a slot is provided on the corresponding side track wall of the first track 3 so that the guide plate 1 and the material stop rod 12 can smoothly enter and exit the slot.

[0043] In summary, the track switching mechanism provided in this embodiment, in conjunction with the setting of the first track 3 and the second track 4, can quickly complete the switching of the sample container from the first track 3 to the second track 4, thereby ensuring the orderliness of the sample container scanning, judgment and track switching, and only one driving component needs to be set, which simplifies the control setting and reduces the equipment cost.

[0044] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A track switching mechanism, used for switching an object between a first track (3) and a second track (4), characterized in that: It comprises a guide member and a material stopper, wherein the guide member is connected to the first displacement assembly, and the material stopper is connected to the second displacement assembly; The first displacement component controls the guide member to enter or exit the first track (3), and the second displacement component controls the material blocking member to enter or exit the first track (3); The material blocking member is used to block the object transported by the first track (3) when it is about to approach the guide member to prevent scanning, and the guide member is used to guide the object transported by the first track (3) to the second track (4).

2. The track switching mechanism according to claim 1, characterized in that: The guide member is a guide plate (1), the guide plate (1) is provided with a guide surface (2), and the guide surface (2) is an inclined surface or an arc-shaped surface.

3. The track switching mechanism according to claim 1, characterized in that: The material blocking member is a material blocking rod (12).

4. The track switching mechanism according to claim 3, characterized in that: The first displacement assembly comprises a support plate (6) connected to the guide member and a linear drive unit, wherein the linear drive unit is connected to the support plate (6) to drive the support plate (6) to move.

5. The track switching mechanism according to claim 4, characterized in that: The linear drive unit comprises a linear guide rod (7) and a mounting base plate (9); a first slider (8) is slidably arranged on the linear guide rod (7); the first slider (8) is connected to the support plate (6); the linear guide rod (7) is connected to the mounting base plate (9); a lead screw (10) parallel to the linear guide rod (7) and a lead screw drive motor (11) are also arranged on the mounting base plate (9); the lead screw (10) is threadedly matched with the first slider (8); and the lead screw drive motor (11) is drivingly connected to the lead screw (10).

6. The track switching mechanism according to claim 4, characterized in that: The second displacement assembly comprises a connecting plate (13), a linear guide rail (15) and a guide rail mounting plate (16); the connecting plate (13) is connected to the material blocking rod (12); the connecting plate (13) is slidably connected to the linear guide rail (15) via a second sliding block (14); the linear guide rail (15) is connected to the guide rail mounting plate (16); a bearing (17) is rotatably provided on the connecting plate (13); an inclined block (18) matched with the bearing (17) is provided on the support plate (6); and an elastic member is further provided between the guide rail mounting plate (16) and the connecting plate (13).

7. The track switching mechanism according to claim 6, characterized in that: The elastic member is a return spring (19), and spring screws (20) are provided on the connecting plate (13) and the guide rail mounting plate (16), and both ends of the return spring (19) are connected to the corresponding spring screws (20).

8. The track switching mechanism according to claim 6, characterized in that: The guide rail mounting plate (16) is also provided with a limiting screw (21).

9. The track switching mechanism according to claim 1, characterized in that: A switching opening (5) is provided between the first track (3) and the second track (4), and the switching opening (5) corresponds to the guide member. A notch is also provided on the first track (3), and the notch corresponds to the guide member and the material blocking member.

10. A conveyor track, characterized in that: It comprises a first track (3), a second track (4) and a track switching mechanism as claimed in any one of claims 1 to 9.

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