Stepping conveying line

Abstract

The utility model relates to the technical field of conveying lines, and provides a stepping conveying line which comprises a supporting frame, two chain guide rails, two cover plate chains and a transmission device, the two chain guide rails are installed on the two sides of the top of the supporting frame respectively, and the two cover plate chains are connected to the two chain guide rails in a sleeved and meshed mode respectively. A plurality of evenly-distributed positioning tools are fixed to the cover plate chains, the positioning tools are triangular, the positioning tools on the two cover plate chains are in one-to-one correspondence, and the transmission device is installed on the supporting frame and is in transmission connection with the two cover plate chains. The conveying line has the advantages that the problem that when the conveying line conveys silkworm trays, the silkworm trays are prone to slipping and unstable in conveying, and the conveying efficiency of the silkworm trays can be affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor lines, and relates to a step conveyor line. Background Art

[0002] Conveyor lines are very commonly used in industrial automation equipment. They can achieve continuous and rapid transmission of biological materials, and can be used in conjunction with other automation equipment to achieve overall automation control, reduce manual intervention, and reduce labor intensity. Currently, when a conveyor line transports a silkworm tray, the silkworm tray is prone to slipping and unstable transportation, which will affect the transportation efficiency of the silkworm tray. Therefore, there is an urgent need for a step conveyor line to solve the above problems. Summary of the Utility Model

[0003] In view of the above technical problems existing in the prior art, a step conveyor line is provided, which solves the problems that when the conveyor line transports a silkworm tray, the silkworm tray is prone to slipping and unstable transportation, which will affect the transportation efficiency of the silkworm tray.

[0004] The purpose and effect of the utility model are achieved by the following specific technical means:

[0005] A step conveyor line includes: a support frame, a chain guide rail, a cover plate chain, and a transmission device. Two chain guide rails are provided and are respectively installed on both sides of the top of the support frame. Two cover plate chains are provided and are respectively sleeved and meshed on the two chain guide rails. A number of uniformly distributed positioning tools are fixed on the cover plate chains. The positioning tools are triangular. The positioning tools on the two cover plate chains correspond to each other one by one. The transmission device is installed on the support frame and is in transmission connection with the two cover plate chains.

[0006] Optionally, grooves are opened below both inclined surfaces of the positioning tool, springs are horizontally fixed in the grooves, and limit blocks are fixed at the outer ends of the springs, and the outer ends of the limit blocks extend out of the grooves.

[0007] Optionally, both inclined surfaces of the positioning tool are smooth surfaces.

[0008] Optionally, physical induction switches are installed on the top of both the head and the tail ends of the support frame, a controller is installed on the support frame, and the transmission device and the physical induction switch are both electrically connected to the controller.

[0009] Optionally, the transmission device includes a motor, a reducer, a transmission shaft, a first double-chain sprocket, a transmission chain, and a second double-chain sprocket. The motor is fixed on the support frame and electrically connected to the controller. The reducer is installed at the output end of the motor. There are two transmission shafts, which are respectively installed at the head and tail ends of the support frame, and both ends of the transmission shaft are respectively connected to two of the cover chains in a transmission manner. The first double-chain sprocket is fixed on the reducer, the second double-chain sprocket is sleeved and fixed on one of the transmission shafts, and the transmission chain is sleeved and meshed between the first double-chain sprocket and the second double-chain sprocket.

[0010] Optionally, guide edges are installed on the outer sides of the chain guides.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The surface of the cover chain in this kind of step conveyor line is uneven and has a large frictional force, which is beneficial to the stable transportation of the silkworm trays. In order to prevent the cover chain from running off during movement, guide edges are installed on the outer sides of the chain guides. In order to facilitate the further stable transportation of multiple silkworm trays to prevent the silkworm trays from sliding on the cover chain, a number of positioning tools evenly distributed are fixed on the cover chain. The distance between the positioning tools is precisely calculated to separate and limit multiple silkworm trays one by one. The positioning tools are triangular, and the positioning tools on the two cover chains correspond to each other, facilitating the rapid placement of the silkworm trays between adjacent pairs of positioning tools. Description of the Drawings

[0013] Figure 1 is a schematic perspective view of the overall structure of the present utility model;

[0014] Figure 2 is of the present utility model Figure 1 schematic diagram of the partial structure at A;

[0015] Figure 3 is a schematic side sectional view of the positioning tool of the present utility model.

[0016] Reference numerals in the drawings: support frame 1, guide edge 2, cover chain 3, motor 4, reducer 5, transmission shaft 6, first double-chain sprocket 7, transmission chain 8, chain guide 9, positioning tool 10, controller 11, physical induction switch 12, second double-chain sprocket 13, groove 14, spring 15, limit block 16. Detailed Embodiment

[0017] Please refer to Figures 1-3 , for a further description of the embodiments of the present utility model;

[0018] As Figures 1-2As shown in the figure, a step conveyor line for conveying silkworm trays includes: a support frame 1, chain guides 9, cover chains 3 and a transmission device. There are two chain guides 9, which are respectively installed on both sides of the top of the support frame 1. There are two cover chains 3, which are respectively sleeved and meshed on the two chain guides 9. The transmission device is installed on the support frame 1 and is in transmission connection with the two cover chains 3; the widths of the chain guides 9 and the cover chains 3 are designed according to the silkworm trays; the silkworm trays are light in weight, so the support frame 1 is preferably made of aluminum profiles to make the whole conveyor line light, which is convenient for handling and adjusting its position; the chain guides 9 are made of nylon, which has the advantages of low friction coefficient, good self-lubrication, strong vibration absorption performance and wear resistance; the cover chains 3 are made of 40Cr. The surface of the cover chains 3 is uneven, and the friction force is large, which is beneficial to the stable transportation of the silkworm trays; in order to prevent the cover chains 3 from running off during movement, guide edges 2 are installed on the outer sides of the chain guides 9.

[0019] Specifically, the transmission device includes a motor 4, a reducer 5, a transmission shaft 6, a first double-chain sprocket 7, a transmission chain 8 and a second double-chain sprocket 13. The motor 4 is fixed on the support frame 1. The reducer 5 is installed at the output end of the motor 4. There are two transmission shafts 6, which are respectively installed at the head and tail ends of the support frame 1, and both ends of the transmission shaft 6 are in transmission connection with the two cover chains 3 respectively. The first double-chain sprocket 7 is fixed on the reducer 5. The second double-chain sprocket 13 is sleeved and fixed on one of the transmission shafts 6. The transmission chain 8 is sleeved and meshed between the first double-chain sprocket 7 and the second double-chain sprocket 13.

[0020] The working principle of this step conveyor line is as follows:

[0021] During use, the motor 4 is powered on. The motor 4 drives the first double-chain sprocket 7 at a low speed under the action of the reducer 5. The first double-chain sprocket 7 will drive the transmission chain 8 and the second double-chain sprocket 13. When the second double-chain sprocket 13 rotates, it will drive the transmission shaft 6 connected to it to rotate, so as to drive the cover chains 3 on the two chain guides 9, so that this step conveyor line operates normally to convey the silkworm trays.

[0022] In order to make the step conveyor line more automated, physical induction switches 12 are installed at the top of both the head and the tail ends of the support frame 1, and a controller 11 is installed on the support frame 1. The motor 4 and the physical induction switch 12 in the transmission device are both electrically connected to the controller 11. Exemplarily, the controller 11 can be a programmable controller such as a PLC controller or a control panel. When the silkworm tray is placed at the head end of the step conveyor line, the physical induction switch 12 at the head end will sense the silkworm tray, and the physical induction switch 12 will transmit the sensed signal to the controller 11 so that the controller 11 can timely control the working state of the motor 4. For example, when the physical induction switch 12 at the head end senses the silkworm tray, the controller 11 turns off the motor 4 so that the staff can stably place the silkworm tray on the two stationary cover plates 3. When the physical induction switch 12 at the tail end senses the silkworm tray, the controller 11 also turns off the motor 4 so that the staff can stably remove the silkworm tray.

[0023] In order to facilitate the further stable conveyance of multiple silkworm trays to prevent the silkworm trays from sliding on the cover plates 3, a number of evenly distributed positioning tools 10 are fixed on the cover plates 3. The spacing between the positioning tools 10 is precisely calculated to separate and limit multiple silkworm trays one by one. The positioning tool 10 is triangular, and the two inclined surfaces of the positioning tool 10 are smooth surfaces. The positioning tools 10 on the two cover plates 3 correspond to each other one by one, facilitating the quick placement of the silkworm tray between adjacent pairs of positioning tools 10.

[0024] As Figure 3 shown, in order to make the silkworm tray limit more stable, grooves 14 are opened below the two inclined surfaces of the positioning tool 10, springs 15 are horizontally fixed in the grooves 14, limit blocks 16 are fixed at the outer ends of the springs 15, and the outer ends of the limit blocks 16 extend out of the grooves 14. The corners of the limit blocks 16 are chamfered and smoothed. When the silkworm tray is placed down, the silkworm tray quickly moves down along the smooth inclined side of the positioning tool 10 to the limit block 16, and then presses the limit block 16. The limit block 16 will compress the spring 15. After the silkworm tray is placed on the cover plates 3, under the elastic force of the spring 15, the limit block 16 close to the silkworm tray will clamp the silkworm tray, thereby achieving the purpose of stable conveyance of the silkworm tray.

Claims

1. A stepping conveyor line, characterized in that: include: A support frame (1), a chain guide rail (9), a cover plate chain (3) and a transmission device, wherein two chain guide rails (9) are provided and are respectively installed on both sides of the top of the support frame (1), and two cover plate chains (3) are provided and are respectively sleeved and meshedly connected to the two chain guide rails (9), and a plurality of evenly distributed positioning fixtures (10) are fixed on each of the cover plate chains (3), wherein the positioning fixtures (10) are triangular in shape, and the positioning fixtures (10) on the two cover plate chains (3) correspond to each other one by one, and the transmission device is installed on the support frame (1) and is transmission-connected to the two cover plate chains (3).

2. A stepping conveyor line according to claim 1, characterized in that: A groove (14) is provided below the two inclined surfaces of the positioning tool (10), a spring (15) is horizontally fixed in the groove (14), a limiting block (16) is fixed at the outer end of the spring (15), and the outer end of the limiting block (16) extends out of the groove (14).

3. A stepping conveyor line according to claim 1, characterized in that: The two inclined surfaces of the positioning tool (10) are smooth surfaces.

4. A stepping conveyor line according to claim 1, characterized in that: Physical sensing switches (12) are installed at the top of both ends of the support frame (1), a controller (11) is installed on the support frame (1), and the transmission device and the physical sensing switch (12) are electrically connected to the controller (11).

5. A stepping conveyor line according to claim 1, characterized in that: The transmission device comprises a motor (4), a reducer (5), a transmission shaft (6), a first double sprocket (7), a transmission chain (8) and a second double sprocket (13); the motor (4) is fixed on a support frame (1) and is electrically connected to a controller (11); the reducer (5) is installed at the output end of the motor (4); two transmission shafts (6) are provided and are respectively installed at the head and tail ends of the support frame (1); and the two ends of the transmission shaft (6) are respectively connected to the two cover plate chains (3); the first double sprocket (7) is fixed on the reducer (5); the second double sprocket (13) is sleeved and fixed on one of the transmission shafts (6); and the transmission chain (8) is sleeved and meshedly connected between the first double sprocket (7) and the second double sprocket (13).

6. A stepping conveyor line according to claim 1, characterized in that: The chain guide rails (9) are all provided with guide edges (2) on their outer sides.

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