A guide rail lifting device

Abstract

The utility model discloses a kind of auxiliary guide rail lifting devices in the technical field of fishing net machine, including servo drive mechanism, including guide rail, and the lower hook angle iron is installed in matched on guide rail, the lower hook angle iron is cooperated with shuttle, the front end of guide rail is connected with the wallboard of fishing net machine by support pin, the rear end of guide rail is connected with buffer mechanism, the middle part of guide rail is connected with the one end of connecting rod, the other end of connecting rod is connected with the rear end of lower hook up-down swing arm, the middle part of lower hook up-down swing arm is connected with the wallboard of fishing net machine by pin shaft, the front end of lower hook up-down swing arm is provided with bearing, bearing is cooperated with lower hook up-down cam, lower hook up-down cam is installed on the main shaft of fishing net machine.In the whole process, the weight of lower hook angle iron is indirectly reduced by buffer mechanism, and then the load of guide rail is reduced, so as to reduce climbing resistance, while the thrust exerted by lower hook up-down cam to bearing is reduced, prolong the service life of lower hook up-down cam.

Description

Technical Field

[0001] This utility model relates to an auxiliary guide rail lifting device in the field of fishing net machine technology. Background Technology

[0002] When weaving fishing nets, a fishing net machine uses a lower hook iron, driven by a guide rail, to rise and combine the warp threads with the weft threads on the shuttle. The lower hook iron then falls back down along the guide rail, disengaging from the warp threads, and then rises again to repeat the process, combining the warp and weft threads to weave the net. However, in existing technology, the guide rail is moved by a swing arm in conjunction with a cam. Because the guide rail travels a considerable distance up and down, and the lower hook iron itself is quite heavy, it creates significant resistance when climbing slopes. Over time, this causes significant wear and tear on the cam and swing arm, affecting their lifespan, shortening maintenance cycles, and increasing costs. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary guide rail lifting device that can indirectly reduce the weight of the lower hook angle iron applied to the guide rail, thereby reducing climbing resistance, extending the service life of components such as the cam and swing arm, extending the maintenance cycle, and reducing costs.

[0004] To achieve the above objectives, this utility model provides an auxiliary guide rail lifting device, including a guide rail, on which a lower hook angle iron is mounted. The lower hook angle iron cooperates with a shuttle. The front end of the guide rail is connected to the wall plate of the fishing net machine through a support pin. The rear end of the guide rail is connected to a buffer mechanism. The middle part of the guide rail is connected to one end of a connecting rod. The other end of the connecting rod is connected to the rear end of the lower hook upper and lower swing arms. The middle part of the lower hook upper and lower swing arms is connected to the wall plate of the fishing net machine through a pin. A bearing is provided at the front end of the lower hook upper and lower swing arms. The bearing cooperates with the lower hook upper and lower cams. The lower hook upper and lower cams are mounted on the main shaft of the fishing net machine.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows: the main shaft drives the upper and lower cams of the lower hook to rotate, and the lower upper cam of the lower hook drives the upper and lower swing arms of the lower hook to move downward through the bearing. The upper and lower swing arms of the lower hook drive the guide rail to move downward through the connecting rod, thereby causing the lower hook angle iron to move downward along the guide rail. When it reaches the lowest point, the main shaft drives the upper and lower cams of the lower hook to rotate, and the lower upper cam of the lower hook drives the upper and lower swing arms of the lower hook to move upward through the bearing, thereby causing the guide rail to move upward, and causing the lower hook angle iron to move upward along the guide rail. In the whole process, the weight of the lower hook angle iron is reduced indirectly through the buffer mechanism, thereby reducing the load on the guide rail, thus reducing the climbing resistance. At the same time, it reduces the thrust exerted by the upper and lower cams of the lower hook on the bearing, and extends the service life of the upper and lower cams of the lower hook.

[0006] As a further improvement of this utility model, the buffer mechanism includes a transmission chain. The front end of the transmission chain passes around the front transmission sprocket and is connected to the rear end of the guide rail. The rear end of the transmission chain passes around the rear transmission sprocket and is connected to the counterweight. The front transmission sprocket and the rear transmission sprocket are respectively mounted on the front support and the rear support. Both the front support and the rear support are mounted on the crossbeam, and the crossbeam is mounted on the wall panel of the fishing net machine.

[0007] When the guide rail moves from a low position to a high position, the counterweight moves downward, which generates a pulling force on the guide rail through the transmission chain, thereby reducing the load generated when the guide rail moves and effectively reducing the thrust generated on the guide rail by the upper and lower cams of the lower hook through the swing arm and connecting rod during the rotation process.

[0008] As a further improvement of this utility model, a column is connected to the bottom of the front bracket, and a pair of guide limiting clamps are installed on the front side of the column, with the rear end of the guide rail located between the guide limiting clamps.

[0009] In this way, the rear end of the guide rail is positioned between the guide limit clamps, ensuring that it remains on a stable track during operation and preventing significant trajectory deviations.

[0010] As a further improvement of this utility model, the front side of the guide limiting clamp is machined into an arc shape.

[0011] This makes the front side of the guide limit clamp better match the running trajectory of the guide rail.

[0012] As a further improvement of this utility model, the bottom of the guide limiting clamp is connected to the limiting base plate, and the rear end of the limiting base plate is fixedly connected to the front side of the column.

[0013] This prevents the guide rail from detaching directly from the bottom of the guide limit clamp due to malfunctions or other reasons.

[0014] As a further improvement of this utility model, the counterweight is set in the guide protective sleeve.

[0015] This ensures that the counterweight can always move vertically up and down, and also protects the counterweight from collisions with external objects that could cause damage or swaying. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the motion trajectory of this utility model.

[0018] Among them, 1 is the rear drive sprocket, 2 is the rear bracket, 3 is the counterweight, 4 is the guide protective sleeve, 5 is the front drive sprocket, 6 is the drive chain, 7 is the front bracket, 8 is the column, 9 is the guide limit clamp, 10 is the limit base plate, 11 is the guide rail, 12 is the wall plate, 13 is the crossbeam, 14 is the lower hook angle iron, 15 is the shuttle, 16 is the connecting rod, 17 is the lower hook upper and lower swing arms, 18 is the bearing, 19 is the lower hook upper and lower cams, 20 is the support pin, and 21 is the pin shaft. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-2 The auxiliary guide rail lifting device shown includes a guide rail 11, on which a lower hook angle iron 14 is mounted. The lower hook angle iron 14 cooperates with a shuttle 15. The device is characterized in that: the front end of the guide rail 11 is connected to the wall plate 12 of the fishing net machine through a support pin 20; the rear end of the guide rail 11 is connected to a buffer mechanism; the middle part of the guide rail 11 is connected to one end of a connecting rod 16; the other end of the connecting rod 16 is connected to the rear end of a lower hook upper and lower swing arm 17; the middle part of the lower hook upper and lower swing arm 17 is connected to the wall plate 12 of the fishing net machine through a pin 21; a bearing 18 is provided at the front end of the lower hook upper and lower swing arm 17; the bearing 18 cooperates with a lower hook upper and lower cam 19; and the lower hook upper and lower cam 19 is mounted on the main shaft of the fishing net machine.

[0020] The buffer mechanism includes a transmission chain 6. The front end of the transmission chain 6 passes around the front transmission sprocket 5 and is connected to the rear end of the guide rail 11. The rear end of the transmission chain 6 passes around the rear transmission sprocket 1 and is connected to the counterweight 3. The front transmission sprocket 5 and the rear transmission sprocket 1 are respectively mounted on the front support 7 and the rear support 2. The front support 7 and the rear support 2 are both mounted on the crossbeam 13. The crossbeam 13 is mounted on the wall panel 12 of the fishing net machine.

[0021] The bottom of the front bracket 7 is connected to a column 8. A pair of guide and limiting clamps 9 are installed on the front side of the column 8, and the rear end of the guide rail 11 is located between the guide and limiting clamps 9. The front side of the guide and limiting clamps 9 is machined into an arc shape. The bottom of the guide and limiting clamps 9 is connected to the limiting base plate 10, and the rear end of the limiting base plate 10 is fixedly connected to the front side of the column 8. The counterweight 3 is set in the guide protective sleeve 4.

[0022] During operation, the main shaft drives the lower hook upper and lower cams 19 to rotate continuously. When the long diameter part of the lower hook upper and lower cams contacts the bearing 18, the lower hook upper and lower swing arms 17 will move downward through the bearing 18. The lower hook upper and lower swing arms 17 will then drive the guide rail 11 to move downward through the connecting rod 16, thereby causing the lower hook angle iron 14 to move downward along the guide rail 11. During this process, when the guide rail 11 moves from a high position to a low position, the counterweight 3 will be driven upward by the lower hook angle iron 14, thereby generating a pulling force on the lower hook angle iron 14 through the transmission chain 6. This reduces the weight of the lower hook angle iron 14 on the guide rail 11, thereby reducing the load generated when the guide rail 11 moves. This effectively reduces the pushing force generated by the lower hook upper and lower cams 19 on the guide rail 11 through the swing arms and connecting rod 16 during the rotation process. As a result, the movement of the lower hook angle iron 14 is more stable, making it easier for it to detach from the warp.

[0023] When the lowest point is reached, the main shaft drives the lower hook upper and lower cams 19 to rotate. The lower hook upper and lower cams drive the lower hook upper and lower swing arms 17 to move upward through the bearing 18, which in turn drives the guide rail 11 to move upward. This causes the lower hook angle iron 14 to move upward along the guide rail 11, hooking the warp thread and connecting it with the weft thread on the shuttle 15. During this process, as the guide rail 11 moves from a low point to a high point, the counterweight 3 moves downward, which generates a pulling force on the guide rail 11 through the transmission chain 6. This reduces the load generated when the guide rail 11 moves, effectively reducing the thrust generated by the lower hook upper and lower cams 19 on the guide rail 11 through the swing arms and connecting rod 16 during the rotation process. The lower hook angle iron 14 is also more stable on the guide rail 11, avoiding the problem of disengagement when the warp and weft threads are connected.

[0024] This utility model reduces the load on the guide rail 11 by using the counterweight block 3 to reduce the stress on the bearing 18 of the lower hook upper and lower cams 19, thereby extending the service life of the lower hook upper and lower cams 19 and other components such as the swing arm.

[0025] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed herein, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. An auxiliary guide rail lifting device, comprising a guide rail, on which a lower hook angle iron is fitted, the lower hook angle iron cooperating with a shuttle, characterized in that: The front end of the guide rail is connected to the wall plate of the fishing net machine via a support pin. The rear end of the guide rail is connected to the buffer mechanism. The middle part of the guide rail is connected to one end of the connecting rod. The other end of the connecting rod is connected to the rear end of the lower hook upper and lower swing arms. The middle part of the lower hook upper and lower swing arms is connected to the wall plate of the fishing net machine via a pin. The front end of the lower hook upper and lower swing arms is equipped with a bearing. The bearing cooperates with the lower hook upper and lower cams. The lower hook upper and lower cams are installed on the main shaft of the fishing net machine.

2. The auxiliary guide rail lifting device according to claim 1, characterized in that: The buffer mechanism includes a drive chain. The front end of the drive chain passes over the front drive sprocket and is connected to the rear end of the guide rail. The rear end of the drive chain passes over the rear drive sprocket and is connected to the counterweight. The front drive sprocket and the rear drive sprocket are respectively mounted on the front support and the rear support. Both the front support and the rear support are mounted on the crossbeam, which is mounted on the wall panel of the fishing net machine.

3. The auxiliary guide rail lifting device according to claim 2, characterized in that: The bottom of the front bracket is connected to a column, and a pair of guide limit clamps are installed on the front side of the column. The rear end of the guide rail is located between the guide limit clamps.

4. The auxiliary guide rail lifting device according to claim 3, characterized in that: The front edge of the guide limit clamp is machined into an arc shape.

5. The auxiliary guide rail lifting device according to claim 4, characterized in that: The bottom of the guide limiting clamp is connected to the limiting base plate, and the rear end of the limiting base plate is fixedly connected to the front side of the column.

6. The auxiliary guide rail lifting device according to claim 5, characterized in that: The counterweight is installed in the guide protective sleeve.

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