Material circulating conveying mechanism

Abstract

The utility model discloses a material circulation conveying mechanism, which belongs to the technical field of material conveying equipment and comprises a material transmission device and a material carrier, the material transmission device comprises two groups of parallel chain transmission components, and each chain transmission component comprises a chain wheel and a transmission chain connected with the chain wheel. The chain wheels, located at the corresponding positions, of the two chain transmission assemblies are connected through a transmission shaft, the material carrier comprises a plurality of strip-shaped bearing strips arranged in parallel, the two ends of each strip-shaped bearing strip are connected with a carrier traction chain through connecting bases, a gap is formed between every two adjacent connecting bases, and carrier moving guide rails are symmetrically arranged in the direction parallel to the chain transmission assemblies. The carrier traction chain is in sliding fit with the carrier moving guide rail, deflector rods are installed on the transmission chain at equal intervals, the deflector rods and the gaps of the carrier connecting bases form a space fit relation, and when the transmission chain operates, the deflector rods are inserted into the gaps and make contact with the connecting bases. According to the utility model, material direct conveying disc-free and one-way linear direct conveying are realized, and the production efficiency and the space utilization rate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying equipment, in particular to a material circulation conveying mechanism. Background Art

[0002] In the field of modern automated production, material transportation is a vital link in the production line. Materials are transported to various workstations through conveyor belts to complete the corresponding processing. In the current material conveying system, the traditional practice is to place the materials on trays, and then these trays are transported from one location to another through conveyor belts. Although this method can effectively complete the material transportation task, with the rapid development of industry, the requirements for production efficiency and space utilization are increasing. The existing method of using conveyor belts to transport material trays has become increasingly prominent: First, traditional trays need to be unloaded manually or with special equipment, which increases auxiliary operation time and labor costs; second, the circulation of empty trays usually relies on the layout of a ring conveyor belt, resulting in the return path occupying a large space, which restricts the compact design of the production line.

[0003] In addition, existing chain drive systems mostly use a rigid connection structure between the carrier and the chain, which requires the transmission chain to provide traction power while carrying the weight of the material. This dual load mode not only aggravates the wear and deformation of the chain, but also shortens the service life of the transmission system due to the long-term effect of the vertical load. In addition, the fixed connection method limits the carrier's ability to separate autonomously at the end of the conveying path, forcing the system to rely on complex pneumatic or mechanical mechanisms to achieve tray recovery, further increasing the complexity of the equipment and the risk of failure. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a material circulation conveying mechanism with a linear direct transport structure, which improves production efficiency and optimizes space utilization.

[0005] The technical solution adopted by the utility model is as follows: a material circulation conveying mechanism, comprising a material transmission device and a material carrier, wherein the material transmission device comprises two sets of parallel chain transmission components, each set of chain transmission components comprises two or more sprockets and a transmission chain connecting the sprockets, and the sprockets at corresponding positions of the two sets of chain transmission components are connected through a transmission shaft to realize synchronous transmission;

[0006] The material carrier comprises a plurality of parallel arranged strip-shaped load-bearing bars, both ends of which are connected to the carrier traction chain through connecting seats, and a gap is provided between two adjacent connecting seats on the same side, and a carrier moving guide rail is symmetrically arranged parallel to the direction of the chain transmission assembly, and the carrier traction chain and the carrier moving guide rail are slidably matched;

[0007] The transmission chain is equidistantly mounted with shifting rods, the arrangement spacing of the shifting rods matches the gap between the connecting seats, the shifting rods are inserted into the gap between two adjacent connecting seats and contact the connecting seats, and when the transmission chain is running, the shifting rods push the material carrier to move along the carrier moving guide rail.

[0008] Furthermore, a plurality of material positioning grooves are evenly distributed along the length direction on the strip-shaped carrying bar.

[0009] Furthermore, guide rail grooves are provided on opposite surfaces of the two carrier moving guide rails, and a side of the carrier traction chain facing away from the strip-shaped bearing bar is located in the guide rail groove.

[0010] Furthermore, a chain guide is provided on the side of the transmission chain travel path facing away from the material carrier, the shifting rod is fixed to the outer surface of the chain plate of the transmission chain facing the material carrier, and the back side of the transmission chain is embedded in the guide groove of the chain guide.

[0011] Furthermore, one of the transmission shafts is drivingly connected to the output end of the driving device.

[0012] Furthermore, a set of material transmission devices is respectively arranged at the starting end and the ending end of the circulating conveying path, and an intermediate guide rail is connected between the two sets of material transmission devices. The intermediate guide rail adopts a guide structure of the same specification as the carrier moving guide rail, and its two ends are seamlessly connected with the carrier moving guide rails at the starting end and the ending end, thereby forming a continuous closed-loop guide rail channel between the two sets of material transmission devices. The length of the intermediate guide rail and the number of material carriers are designed to meet the following requirements:

[0013] When the material transmission device at the starting end pushes the material carrier at the end to enter the middle guide rail, the front end face of the material carrier forms a rigid abutment with the end of the carrier queue on the middle track. Under the continuous push of the material transmission device at the starting end, the material carrier newly entering the middle guide rail pushes the front carrier queue as a whole to move toward the terminal end through the abutment force, and moves the material carrier at the head end of the queue to the carrier moving guide rail at the terminal end. The lever of the material transmission device at the terminal end is inserted into the gap of the material carrier connecting seat one by one as the transmission chain runs, establishes a transmission connection with the material carrier, and completes the cyclic power transition.

[0014] The beneficial effects of the utility model are:

[0015] (1) In the present invention, the material is directly placed in the groove of the strip-shaped carrying bar, eliminating the traditional material tray. The material carrier is composed of a number of parallel arranged strip-shaped carrying bars and connected by a carrier traction chain, so that it can move with the chain drive assembly, and the material is automatically unloaded by turning the carrier. At the same time, the present application adopts a straight line reciprocating layout to reduce non-productive travel, solves the problem of low effective conveying space utilization due to the need to set up an empty material tray return path for the traditional circular conveyor belt, and improves production efficiency and space utilization.

[0016] (2) The direct rigid connection between the material carrier and the transmission chain is eliminated. The transmission chain and the material carrier adopt contact dynamic coupling. The transmission chain only provides horizontal thrust. The material carrier and the weight of the material are transmitted to the frame through the carrier traction chain-carrier moving guide rail, which avoids the transmission chain from bearing vertical loads, reduces wear and increases the chain life; at the same time, it also provides a basis for the automatic separation of the material carrier and the transmission chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the utility model.

[0018] Figure 2 yes Figure 1 A partial enlarged schematic diagram in the middle.

[0019] Figure 3 It is a structural schematic diagram of the strip-shaped bearing strip of the utility model.

[0020] Figure 4 It is a schematic diagram of the cooperation between the material carrier and the carrier moving guide rail as well as the transmission chain and the chain guide rail of the utility model.

[0021] Figure 5 yes Figure 4 Schematic diagram from another perspective.

[0022] Figure 6 It is a schematic diagram of the overall structure of Example 2 of the utility model.

[0023] In the figure: sprocket 1, transmission chain 2, lever 201, transmission shaft 3, material carrier 4, bar-shaped bearing bar 401, material positioning groove 402, connecting seat 403, carrier traction chain 404, carrier moving guide rail 5, chain guide rail 6, intermediate guide rail 7. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and carefully below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0025] Example 1

[0026] like Figure 1 As shown, the material circulation conveying mechanism of this embodiment includes a material transmission device and a material carrier 4. The material transmission device includes two sets of parallel chain transmission components. Each set of chain transmission components includes two sprockets 1 and a transmission chain 2 connecting the sprockets 1. The sprockets 1 at corresponding positions of the two sets of chain transmission components are connected through transmission shafts 3 to realize synchronous transmission. One of the transmission shafts 3 is transmission-connected to the output end of the driving device.

[0027] like Figure 2-Figure 5 As shown, the material carrier 4 includes a plurality of parallel arranged strip-shaped bearing bars 401, the two ends of the strip-shaped bearing bars 401 are respectively connected to the carrier traction chain 404 through the connecting seat 403, and a gap is provided between two adjacent connecting seats 403 on the same side, and a carrier moving guide rail 5 is symmetrically arranged parallel to the direction of the chain transmission component, and the carrier traction chain 404 and the carrier moving guide rail 5 are slidably matched. The lever 201 is equidistantly installed on the transmission chain 2, and the arrangement spacing of the lever 201 matches the gap of the connecting seat 403. The lever 201 is inserted into the gap between two adjacent connecting seats 403 and contacts the connecting seat 403. When the transmission chain 2 is running, the lever 201 pushes the material carrier 4 to move along the carrier moving guide rail 5.

[0028] In the technical solution of this embodiment, the movement guidance of the material carrier 4 is realized by the cooperation of the carrier traction chain 404 and the carrier moving guide rail 5, and the power transmission is completed by the cooperation of the transmission chain 2, the lever 201 and the gap of the connecting seat 403. The material carrier 4 adopts a combination of a plurality of parallel arranged strip-shaped bearing bars 401 and the carrier traction chain 404, so that the material carrier 4 can be circulated with the transmission chain 2, thereby eliminating the extra path required for the return trip and improving the space utilization.

[0029] In this embodiment, in order to limit the position of the transported material, a plurality of material positioning grooves 402 are evenly distributed along the length direction on the strip-shaped carrying bar 401 .

[0030] See also Figure 2 , Figure 4 In this embodiment, rail grooves are provided on opposite sides of the two carrier moving rails 5, and the side of the carrier traction chain 404 facing away from the strip-shaped bearing bar 401 is located in the rail groove, and a low-resistance sliding pair is formed with the rail groove through the chain roller.

[0031] See also Figure 2 , Figure 4 In order to improve the movement stability of the transmission chain 2, a chain guide 6 is provided on the side of the transmission chain 2 that faces away from the material carrier 4. The lever 201 is fixed to the outer surface of the chain plate of the transmission chain 2 that faces the material carrier 4, and the back side of the transmission chain 2 is embedded in the guide groove of the chain guide 6. The chain guide 6 provides constraints and support for the movement of the transmission chain 2.

[0032] In this embodiment, one of the transmission shafts 3 is driven to rotate by an external power device, thereby driving the sprocket 1 and the transmission chain 2 to perform a cyclic operation. When the transmission chain 2 is running, the lever 201 is inserted into the gap between two adjacent connecting seats 403 of the material carrier 4 and contacts the connecting seats 403, thereby driving the material carrier 4 to move along the carrier moving guide rail 5. The material carrier 4 cooperates with the feeding mechanism at the starting end of the upper running section to complete the loading. When the material carrier 4 moves to the tail end of the carrier moving guide rail 5, it flips along the track of the carrier moving guide rail 5, and the material it carries is separated from the material carrier 4 by gravity to complete automatic unloading. The material carrier 4 continues to rotate along the lower layer of the carrier moving guide rail 5, and the cyclic transportation is repeated in this way.

[0033] Example 2

[0034] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that: a set of material transmission devices are respectively arranged at the starting end and the ending end of the circulating conveying path, and an intermediate guide rail 7 is connected between the two sets of material transmission devices. The intermediate guide rail 7 adopts a guide structure with the same specifications as the carrier moving guide rail 5, and its two ends are seamlessly connected with the carrier moving guide rails 5 at the starting end and the ending end, thereby forming a continuous closed-loop guide rail channel between the two sets of material transmission devices. The length of the intermediate guide rail 7 and the number of material carriers 4 are designed to meet:

[0035] When the material transmission device at the starting end pushes the end material carrier 4 to enter the middle guide rail 7, the front end face of the material carrier forms a rigid abutment with the end of the carrier queue on the middle track. Under the continuous push of the material transmission device at the starting end, the material carrier newly entering the middle guide rail 7 pushes the front carrier queue as a whole to the terminal end through the abutment force, and moves the material carrier at the head of the queue to the terminal carrier moving guide rail 5. The lever 201 of the terminal material transmission device is inserted into the gap of the material carrier connection seat 403 one by one with the operation of the transmission chain 2, and establishes a transmission connection with the material carrier to complete the cyclic power transition. The power transmission mechanism of the return section is similar. This design not only extends the conveying distance and improves the scalability, but also the middle section is a non-powered section that transmits thrust through contact between carriers, reducing the number of driving points.

[0036] In this embodiment, the middle guide rail 7 and the carrier moving guide rails 5 at both ends form a large material carrier 4 circulation movement path. The material circulation conveying mechanism is provided with multiple groups of material carriers 4. By reasonably setting the length of the middle guide rail 7 and the number of material carriers 4, the material carrier 4 at the upper running section at the starting end is transferred from the carrier moving guide rail 5 to the middle guide rail 7 under the push of the lever 201 on the transmission chain 2, and is separated from the lever 201 at the starting end, and at the same time pushes the material arranged on the middle guide rail 7. The carrier 4 moves forward, and the material carrier 4 near the terminal end on the middle guide rail 7 is pushed by the previous material carrier 4 to contact the lever 201 on the transmission chain 2 at the terminal end, and then is pushed to the lower return section by the material transmission device at the terminal end, and pushes the material carrier 4 on the middle guide rail 7 located in the lower return section to move toward the starting end, so that a material carrier 4 near the starting end of the return section of the middle guide rail 7 contacts the lever 201 on the transmission chain 2 at the starting end, and runs to the upper running section again, and repeats this to achieve cyclic conveying.

[0037] With the help of the teachings in the foregoing description and the related drawings, a person skilled in the art will be able to think of many modifications and other embodiments of the present invention. Therefore, it is to be understood that the present invention is not limited to the specific embodiments disclosed, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are used herein, they are used only in a general and descriptive sense and not for limitation.

Claims

1. A material circulation conveying mechanism, comprising a material transmission device and a material carrier (4), characterized in that: The material transmission device comprises two sets of parallel chain transmission assemblies, each set of chain transmission assemblies comprises two or more sprockets (1) and a transmission chain (2) connecting the sprockets (1), and the sprockets (1) at corresponding positions of the two sets of chain transmission assemblies are connected via a transmission shaft (3) to achieve synchronous transmission; The material carrier (4) comprises a plurality of parallel arranged strip-shaped bearing bars (401), the two ends of the strip-shaped bearing bars (401) are respectively connected to a carrier traction chain (404) via a connecting seat (403), and a gap is provided between two adjacent connecting seats (403) on the same side, and a carrier moving guide rail (5) is symmetrically arranged parallel to the direction of the chain transmission component, and the carrier traction chain (404) and the carrier moving guide rail (5) are slidably matched; The transmission chain (2) is equidistantly mounted with shifting rods (201), the arrangement spacing of the shifting rods (201) matches the gap between the connecting seats (403), the shifting rods (201) are inserted into the gap between two adjacent connecting seats (403) and contact the connecting seats (403), and when the transmission chain (2) is running, the shifting rods (201) push the material carrier (4) to move along the carrier moving guide rail (5).

2. A material circulation conveying mechanism according to claim 1, characterized in that: A plurality of material positioning grooves (402) are evenly distributed along the length direction on the strip-shaped supporting strip (401).

3. A material circulation conveying mechanism as claimed in claim 1, characterized in that: The two carrier moving guide rails (5) are provided with guide rail grooves on opposite sides thereof, and the side of the carrier traction chain (404) facing away from the strip-shaped bearing bar (401) is located in the guide rail groove.

4. A material circulation conveying mechanism as claimed in claim 1, characterized in that: A chain guide rail (6) is provided on the side of the transmission chain (2) traveling path facing away from the material carrier (4); the shifting rod (201) is fixedly connected to the outer surface of the chain plate of the transmission chain (2) facing the material carrier (4); and the back side of the transmission chain (2) is embedded in the guide groove of the chain guide rail (6).

5. A material circulation conveying mechanism as claimed in claim 1, characterized in that: One of the transmission shafts (3) is drivingly connected to the output end of the driving device.

6. A material circulation conveying mechanism according to any one of claims 1 to 5, characterized in that: A set of material transmission devices is respectively arranged at the starting end and the ending end of the circulating conveying path, and an intermediate guide rail (7) is connected between the two sets of material transmission devices. The intermediate guide rail (7) adopts a guide structure of the same specification as the carrier moving guide rail (5), and its two ends are respectively seamlessly connected with the carrier moving guide rails (5) at the starting end and the ending end, thereby forming a continuous closed-loop guide rail channel between the two sets of material transmission devices. The length of the intermediate guide rail (7) and the number of material carriers (4) are designed to meet the following requirements: When the material transmission device at the starting end pushes the material carrier (4) at the end to enter the middle guide rail (7), the front end face of the material carrier forms a rigid abutment with the end of the carrier queue on the middle track. Under the continuous pushing of the material transmission device at the starting end, the material carrier newly entering the middle guide rail (7) pushes the front carrier queue as a whole to move toward the end end through the abutment force, and moves the material carrier at the head end of the queue to the carrier moving guide rail (5) at the end end. The lever (201) of the material transmission device at the end end is inserted into the gap of the material carrier connecting seat (403) one by one as the transmission chain (2) runs, and establishes a transmission connection with the material carrier, thereby completing the cyclic power transition.

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