Chain transmission positioning mechanism

Abstract

The utility model discloses a chain transmission positioning mechanism which comprises a power device. The chain wheel group is connected with the power device; the chain is meshed with the chain wheel group; the bottom supporting plate is integrally arranged above the chain; the first limiting parts are arranged in multiple sets, the multiple sets of first limiting parts are arranged on the outer side of the chain at equal intervals in the moving direction of the chain, and the first limiting parts are fixed to the chain; the first limiting part comprises two sets of limiting plates, the two sets of limiting plates are oppositely arranged, a connecting plate is arranged on the side, away from the other set of limiting plates arranged oppositely, of one set of limiting plates, and the connecting plate is fixedly connected with a chain. The position deviation and direction deflection of the carton in the conveying direction can be restrained, it is ensured that the carton is always located in a preset positioning interval in the conveying process, and the grabbing precision and efficiency of the follow-up boxing procedure are improved. According to the structure, redundant parts are reduced, and the mechanical complexity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of workshop conveyer, especially a chain drive positioning mechanism. BACKGROUND

[0002] As the most widely used carrier in the packaging field, the conveying and positioning accuracy of cartons directly affects the efficiency and reliability of subsequent automatic carton loading processes. In the traditional carton conveying method, the carton is usually placed directly on the surface of the conveying belt, relying on friction to drive it to move to the carton loading station. However, there are the following technical defects: the position of the carton cannot be limited, and the carton is prone to position deviation and direction deflection during movement due to inertia or external interference, resulting in failure of the subsequent mechanical hand to grasp or misplacement of the carton during loading. The prior art records that the posture stability of the carton is improved by a clamping mechanism, but it relies on a complex mechanical and electrical structure, which has limitations such as high cost and difficulty in maintenance. SUMMARY

[0003] Therefore, in order to solve the above problems, the utility model provides a chain drive positioning mechanism, which comprises:

[0004] a power device;

[0005] a sprocket set connected with the power device and driven to rotate by the power device;

[0006] a chain engaged with the sprocket set;

[0007] a bottom support plate with its upper surface defining a receiving space for the bottom of the carton, the bottom support plate being arranged above the chain;

[0008] a first limiting part, which is provided in multiple groups, the multiple groups of first limiting parts being arranged equidistantly on the outer side of the chain along the movement direction of the chain, and the first limiting parts being fixed with the chain;

[0009] The first limiting part comprises two groups of limiting plates, the two groups of limiting plates being arranged oppositely, and a connecting plate being arranged on the side of one group of limiting plates away from the other group of limiting plates, the connecting plate being fixedly connected with the chain. When the limiting plate moves to the position of the bottom support plate along with the chain, the limiting plate is above the bottom support plate.

[0010] The utility model discloses a plurality of first limiting parts are arranged equidistance along the chain movement direction, and the bottom support plate is combined to the bearing limit of carton bottom, forms periodic dynamic positioning station. When the limiting plate moves to the above of bottom support plate along with chain, can constrain the position deviation and direction deflection of carton in the conveying direction, ensure that carton is always in the preset positioning interval in the conveying process, improve the grasping precision and efficiency of subsequent packing process. Through the fixed connection design of limiting plate and chain and the independent bearing structure of bottom support plate, the integration of positioning function and conveying function is realized. This structure reduces the redundant components, reduces the mechanical complexity.

[0011] Further, the positioning mechanism further comprises a chain upper guide rail in sliding cooperation with the chain bearing segment.

[0012] The physical constraint of the movement track of the chain bearing segment by the chain upper guide rail can reduce the lateral deviation and vertical vibration of the chain bearing segment in conveying, and improve the stability and accuracy of the chain in periodic transmission.

[0013] Further, the positioning mechanism further comprises a chain lower support plate arranged below the chain transition segment.

[0014] The chain lower support plate provides continuous physical support for the non-bearing segment of the chain, reduces the sagging deformation of the transition segment caused by the weight or inertia of the chain, and improves the stability and accuracy of the chain in periodic transmission.

[0015] Further, each chain wheel group is provided with a power device for driving rotation.

[0016] By independently configuring a power device for each chain wheel group, distributed drive control of multiple chain wheel groups is realized, the rotation speed and torque of each chain wheel can be dynamically adjusted according to the load demand of different segments of the chain, the cumulative deformation error of the chain in the traditional single-point drive mode is reduced, and the position synchronization accuracy when the limiting plate reaches the bottom support plate is improved.

[0017] Further, the positioning mechanism further comprises a second limiting part arranged on one side of the bottom support plate along the conveying direction of the carton.

[0018] Further, the second limiting part comprises a guardrail arranged above one side of the bottom support plate along the conveying direction of the carton.

[0019] The guardrail and the first limiting plate form a spatially staggered layout, which can avoid the problem of asynchronous positioning of the first and last cartons caused by a single limiting structure.

[0020] Further, the second limiting part further comprises a fixed rod and a connecting rod, the fixed rod is arranged on one side of the bottom supporting plate perpendicularly to the surface of the bottom supporting plate, and the connecting rod is arranged perpendicularly to the conveying direction of the carton and the fixed rod, one end of the connecting rod is fixedly connected with the guardrail, and the other end penetrates through the fixed rod and is kept relative sliding with the fixed rod.

[0021] Further, one end of the fixed rod is provided with a locking bolt threadedly connected with the fixed rod, the tail of the locking bolt abuts against the connecting rod, so that the connecting rod and the fixed rod are kept relative fixed.

[0022] By loosening the locking bolt, the connecting rod can be slid, so that the adjustment of the guardrail perpendicularly to the conveying direction of the carton is realized.

[0023] The utility model has the advantages of:

[0024] The utility model discloses a plurality of first limiting parts are arranged equidistantly along the movement direction of the chain, and the bottom supporting plate is combined to bear and limit the bottom of the carton, and a periodic dynamic positioning station is formed. When the limiting plate moves to above the bottom supporting plate along the chain, the position deviation and direction deflection of the carton in the conveying direction can be restricted, so that the carton is ensured to be always in the preset positioning interval in the conveying process, and the grabbing precision and efficiency of the subsequent boxing process are improved. Through the fixed connection design of the limiting plate and the chain and the independent bearing structure of the bottom supporting plate, the integration of the positioning function and the conveying function is realized. The structure reduces redundant components and reduces mechanical complexity. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is partial local structure schematic view of positioning mechanism;

[0026] Figure 2 It is Figure 1 The positioning mechanism is cut schematic view;

[0027] In the drawing:

[0028] 1, power device;2, chain wheel set;3, rack;4, limiting plate;5, connecting plate;6, bottom supporting plate;7, guide groove;8, upper chain guide rail;9, chain;9A, bearing section;9B, transition section;10, lower chain supporting plate;11, mounting portion;12, fixed rod;13, connecting rod;14, guardrail;15, locking bolt. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0030] In this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] As described in the background, the prior art has described that the posture stability of the carton is improved by the clamping mechanism, but it depends on the complex mechanical and electrical structure, and has the limitations of high cost and difficult maintenance.

[0032] Embodiment 1:

[0033] Therefore, in order to solve the technical problems existing in the prior art, the present embodiment provides a chain drive positioning mechanism, as shown in Figure 1 , 2 The positioning mechanism comprises:

[0034] a power device 1;

[0035] a sprocket set 2, which is connected with the power device and driven to rotate by the power device;

[0036] a chain 9, which is engaged with the sprocket set;

[0037] a bottom support plate 6, the upper surface of which defines a receiving space for the bottom of the carton, and the bottom support plate is arranged above the chain;

[0038] a first limiting part, which is provided in multiple groups, and the multiple groups of the first limiting part are arranged equidistantly on the outer side of the chain along the movement direction of the chain, and the first limiting part is fixed with the chain;

[0039] The first limiting part comprises two groups of limiting plates 4, and the two groups of limiting plates are oppositely arranged, and a connecting plate 5 is arranged on the side of one group of limiting plates away from the other group of limiting plates, and the connecting plate is fixedly connected with the chain, and when the limiting plate moves with the chain to the position of the bottom support plate, the limiting plate is above the bottom support plate.

[0040] Exemplarily, the power device in the embodiment can select a servo motor, and periodic rotation is realized by driving the chain wheel and chain through the servo motor. By installing limit plates on the chain and adjusting the spacing between the limit plates, the carton can be positioned in the forward direction of the chain by placing the carton between the two groups of limit plates of the first limiting part. The bottom support plate bears the bottom of the carton. When the power device drives the chain wheel set to rotate, the chain moves, driving the limit plates to move, so that the entire first limiting part moves, thereby driving the carton to move, realizing the transportation of the carton.

[0041] In the embodiment, multiple groups of first limiting parts are arranged equidistantly along the movement direction of the chain, and the bottom support plate bears and limits the bottom of the carton, forming a periodic dynamic positioning station. When the limit plate moves above the bottom support plate, it can constrain the positional deviation and directional deflection of the carton in the conveying direction, ensuring that the carton is always within the preset positioning interval during conveying, improving the grabbing accuracy and efficiency of the subsequent boxing process. Through the fixed connection design of the limit plate and the chain, and the independent bearing structure of the bottom support plate, the integration of the positioning function and the conveying function is realized, which reduces redundant parts and reduces mechanical complexity.

[0042] In addition, in the embodiment, the positioning mechanism can further include a rack 3, and the chain wheel set, the power device, the bottom support plate and the first limiting part are arranged on the rack. The bottom support plate is arranged on the top of the rack and is parallel to the movement direction of the chain. A guide groove 7 is formed between the side of the bottom support plate and the rack, and the connecting plate moves along the guide groove when the power device drives the limit plate to move above the bottom support plate.

[0043] Exemplarily, as shown in Figure 2 The positioning mechanism further includes a chain upper guide rail 8 that is in sliding cooperation with the chain bearing segment 9A, and the chain upper guide rail is fixed on the rack.

[0044] The embodiment can reduce the lateral deviation and vertical vibration of the chain bearing segment in conveying by physically constraining the movement trajectory of the chain bearing segment through the chain upper guide rail 8, thereby improving the stability and accuracy of the chain in periodic transmission.

[0045] Exemplarily, as shown in Figure 2 The positioning mechanism further includes a chain lower support plate arranged below the chain transition segment 9B, and the chain lower support plate is fixed on the rack.

[0046] The chain lower support plate provides continuous physical support for the non-bearing segment of the chain, reduces the sagging deformation of the transition segment caused by the weight or inertia of the chain, and improves the stability and accuracy of the chain in periodic transmission.

[0047] Exemplarily, each chain wheel set is provided with a power device that drives it to rotate.

[0048] As Figure 2 shown, the entire chain drive positioning mechanism is operated by first driving the chain sprocket and chain to achieve periodic transmission through the front and rear two servo motors, by independently configuring power devices for each chain sprocket group, realizing distributed drive control of multiple chain sprocket groups, and dynamically adjusting the speed and torque of each chain sprocket according to the load demand of different sections of the chain, reducing the cumulative deformation error of the chain in the traditional single-point driving mode, and improving the position synchronization accuracy of the limiting plate when reaching the bottom support plate.

[0049] Exemplarily, the positioning mechanism further comprises a second limiting part, which is arranged on one side of the bottom support plate along the conveying direction of the carton.

[0050] The second limiting part comprises a guardrail 14, which is arranged above one side of the bottom support plate along the conveying direction of the carton.

[0051] The guardrail and the first limiting plate form a spatially staggered layout, which can reduce the situation that the carton is placed with deviation perpendicular to the conveying direction.

[0052] Exemplarily, the second limiting part further comprises a fixed rod 12 and a connecting rod 13, the fixed rod is arranged on one side of the bottom support plate perpendicular to the surface of the bottom support plate, and the connecting rod is arranged perpendicular to the conveying direction of the carton and the fixed rod, one end of the connecting rod is fixedly connected with the guardrail, and the other end penetrates through the fixed rod and keeps relative sliding with the fixed rod.

[0053] Exemplarily, one end of the fixed rod is provided with a locking bolt 15 threadedly connected with the fixed rod, the tail of the locking bolt abuts against the connecting rod, so that the connecting rod and the fixed rod keep relative fixation.

[0054] By loosening the locking bolt, the connecting rod can be slid, so as to realize adjustment of the guardrail perpendicular to the conveying direction of the carton.

[0055] In the embodiment, as Figure 2 shown, the fixed rod is fixed on one side of the rack through a mounting part, and the fixed rod is fixed on the mounting part.

[0056] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of principles and novel features disclosed herein.

Claims

1. A chain drive positioning mechanism, characterized in that, include: Power unit; A sprocket assembly that is connected to a power unit, which drives the sprocket assembly to rotate. A chain that meshes with a sprocket assembly; A bottom tray, the upper surface of which defines a receiving bottom for a carton, the bottom tray being positioned entirely above the chain; The first limiting part is provided in multiple sets, and the multiple sets of the first limiting parts are equidistantly arranged on the outside of the chain along the movement direction of the chain, and the first limiting part is fixed to the chain; The first limiting part includes two sets of limiting plates, which are arranged opposite to each other. A connecting plate is provided on the side of one set of limiting plates away from the other set of limiting plates arranged opposite to it. The connecting plate is fixedly connected to the chain. When the limiting plate moves with the chain to the bottom support plate position, the limiting plate is above the bottom support plate.

2. The chain drive positioning mechanism according to claim 1, characterized in that: The positioning mechanism also includes an upper guide rail on the chain that slides with the chain-bearing section.

3. A chain drive positioning mechanism according to claim 1 or 2, characterized in that: The positioning mechanism also includes a chain underplate located below the chain transition section.

4. The chain drive positioning mechanism according to claim 1, characterized in that: Each of the aforementioned sprocket sets is equipped with a corresponding power device to drive its rotation.

5. The chain drive positioning mechanism according to claim 1, characterized in that: The positioning mechanism also includes a second limiting part, which is disposed on one side of the bottom tray along the conveying direction of the carton.

6. A chain drive positioning mechanism according to claim 5, characterized in that: The second limiting part includes a guardrail, which is arranged above one side of the bottom tray along the conveying direction of the carton.

7. A chain drive positioning mechanism according to claim 6, characterized in that: The second limiting part also includes a fixing rod and a connecting rod. The fixing rod is perpendicular to the surface of the bottom support plate and is disposed on one side of the bottom support plate. The connecting rod is perpendicular to the conveying direction of the carton and is disposed with the fixing rod. One end of the connecting rod is fixedly connected to the guardrail, and the other end passes through the fixing rod and slides relative to the fixing rod.

8. A chain drive positioning mechanism according to claim 7, characterized in that: One end of the fixing rod is provided with a locking bolt that is threadedly connected to the fixing rod. The tail of the locking bolt abuts against the connecting rod to keep the connecting rod and the fixing rod relatively fixed.

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