Pipe rail stepping type conveying mechanism

Abstract

The pipe rail stepping type conveying mechanism comprises a rail beam and a pipe rail, the pipe rail is horizontally installed under the rail beam, signal supports are arranged at the positions, close to the warehouse-in side and the warehouse-out side, of the rail beam respectively, and a poke rod capable of directionally reciprocating in the horizontal direction is arranged in the rail beam; the bottom of the poke rod is evenly connected with wedge-shaped poke blocks in a hinged mode, so that the wedge-shaped poke blocks have a moving space in the moving direction of the poke rod, and the moving space is configured in the mode that when the poke rod moves from the garage inlet side to the garage outlet side, the wedge-shaped poke blocks can poke the shoulder pole hooks hooked on the pipe rail to move in the direction close to the garage outlet side, and the shoulder pole hooks are hooked on the pipe rail. And when the poke rod moves reversely, the wedge-shaped poke block can deflect in the moving space to move reversely to cross the shoulder pole hook. According to the pipe rail stepping type conveying mechanism, carcasses can be conveyed one by one in the pre-cooling room in a stepping mode, the distance between different carcasses is ensured, the conveying work efficiency is high, and the quality of the carcasses can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of carcass conveying, and in particular to a pipe-rail step-by-step conveying mechanism. Background Art

[0002] In the pork processing, pre-cooling and acid removal is an important step, which can effectively improve the quality of pork and prevent nutrient loss. Among them, carcass acid removal has extremely strict requirements on temperature, humidity, space and time, and the carcass needs to be evenly hung on the pipe rails in the pre-cooling room.

[0003] Traditional pre-cooling room tracks mostly use motor-driven chain conveying or manual pushing. Manual pushing is not only inefficient and labor-intensive, but also cannot ensure uniform distribution of carcasses; while motor-driven conveying has a complex structure, is not conducive to installation, and consumes a lot of energy. This equipment uses the reciprocating cycle of the cylinder to make the carcass move forward in a step-by-step manner. It has a high degree of automation, low energy consumption, and a simple structure that is easy to install. Summary of the invention

[0004] The embodiment of the present application provides a pipe-rail step-by-step conveying mechanism, which can convey carcasses one by one in a pre-cooling room in a step-by-step manner, while ensuring the spacing between different carcasses, with high conveying efficiency, low energy consumption, and can ensure the quality of the carcasses.

[0005] The embodiment of the present application provides a pipe-rail step-by-step conveying mechanism for conveying carcasses in a pre-cooling room, wherein an inlet turnout and an outlet turnout are respectively provided on the inlet side and the outlet side of the pre-cooling room, the pipe-rail step-by-step conveying mechanism comprises a track beam and a pipe rail, the pipe rail is horizontally installed directly below the track beam, and is used to connect the conveying rails of the inlet turnout and the outlet turnout respectively, so as to allow a shoulder pole hook for hooking carcasses to move, the track beam is respectively provided with a signal bracket near the inlet side and the outlet side, and a signal bracket is provided in the track beam that can move in the horizontal direction A toggle rod that moves reciprocatingly in a directional manner, the bottom of which is evenly connected to a wedge-shaped toggle block in a hinged manner, the hinge allowing the wedge-shaped toggle block to have an activity space in the moving direction of the toggle rod, the activity space being configured as follows: when the toggle rod moves from the entry side to the exit side, the wedge-shaped toggle block can toggle the shoulder pole hook hung on the pipe rail to move stepwise toward the exit side, and when the toggle rod moves in the reverse direction, the wedge-shaped toggle block can deflect within the activity space and move in the reverse direction to pass over the shoulder pole hook.

[0006] In a possible implementation, the top of the track beam is fixed to the on-site main steel beam through a secondary steel beam, at least one linear telescopic element is installed in the secondary steel beam, and the telescopic end of the linear telescopic element is connected to the toggle rod through an adapter plate.

[0007] In a possible implementation, the linear telescopic element is a cylinder, and there are 1-3 linear telescopic elements.

[0008] In a possible implementation, the track beam is composed of U-shaped steels that are horizontally symmetrically distributed, and the opening of the U-shaped steel is located on the inner side. A slider is provided in the moving space formed by the two U-shaped steels, and the slider is connected to the top of the toggle rod.

[0009] In a possible implementation, a U-shaped groove is provided at the bottom of the shifting rod, the wedge-shaped shifting block is hinged at the groove walls on both sides of the U-shaped groove, and the wedge-shaped shifting block has a limiting top. When the wedge-shaped shifting block shifts the shoulder pole hook, the limiting top abuts against the groove bottom of the U-shaped groove, and the lower part of the wedge-shaped shifting block is inclined obliquely downward close to the outbound side;

[0010] An arc-shaped transition structure is provided on the side of the limit top close to the outbound side, and the hinge point between the wedge-shaped shift block and the shift rod is close to the arc-shaped transition structure, so that when the shift rod moves in the opposite direction, the wedge-shaped shift block can be deflected in a directional manner to make the limit top away from the bottom of the U-shaped groove.

[0011] In a possible implementation, a shifting plane structure is provided at the lower portion of the wedge-shaped shifting block on one side close to the outbound side, so that when the wedge-shaped shifting block shifts the shoulder pole hook, the shifting plane structure can abut against the surface of the shoulder pole hook.

[0012] In a possible implementation, a groove is provided at the top of the pipe rail corresponding to the wedge-shaped shifting block, so that when the wedge-shaped shifting block shifts the pole hook into place, the pole hook can be located exactly in the groove.

[0013] In a possible implementation, the bottom of the toggle rod is evenly connected to a wedge-shaped block in the U-shaped groove in an articulated manner, and the wedge-shaped block has 1-4 pieces, and is correspondingly arranged on the rear side of the 1-4 wedge-shaped blocks close to the entry side, that is, the side close to the exit side, and the wedge-shaped block cooperates with the wedge-shaped block to clamp and move the shoulder pole hook;

[0014] An L-shaped guide plate is connected to the outer side of the wedge-shaped stopper, and an L-shaped slide rail is arranged on the outer side of the track beam, wherein the L-shaped slide rail comprises a horizontal top and an inclined side portion, wherein the inclined side portion extends obliquely downward away from the horizontal top, and the L-shaped slide rail cooperates with the L-shaped guide plates respectively, so that when the wedge-shaped shifting block shifts the shoulder pole hook close to the groove, the L-shaped guide plate can gradually move to the horizontal top along the inclined side portion, and when the shifting rod moves in the opposite direction, the L-shaped guide plate can drive the wedge-shaped stopper to reset.

[0015] In a possible implementation, the wedge-shaped shift block is composed of a metal shift block close to the storage entry side and the remaining multiple nylon shift blocks, the bottom of the metal shift block is pointed, and the bottom of the nylon shift block is parallel to the limit top.

[0016] In a possible implementation, the track beam is connected to a guard rail at the bottom near the entry side, and the guard rail extends in an arc shape at one end near the entry switch to support the shoulder pole hook on the inside when the shoulder pole hook moves from the entry switch to the pipe rail.

[0017] Beneficial effects: Compared with the prior art, the pipe rail step-by-step conveying mechanism provided by the present application drives the evenly distributed wedge-shaped shifting blocks to shift each shoulder pole hook on the pipe rail through the shifting rod, and performs a return operation after the movement is in place, so that the wedge-shaped shifting blocks can shift the shoulder pole hook coming from the subsequent warehouse switch again, thereby realizing the step-by-step directional movement of the carcass in the pre-cooling room, the moving speed is controllable, the distance between the carcasses is controllable, and the conveying efficiency of the carcasses can be effectively improved, and the labor cost can be reduced;

[0018] Based on the special structure of the wedge-shaped shifting block, the limiting top abuts against the bottom of the U-shaped groove, thereby forming a limit for the wedge-shaped shifting block, so that the wedge-shaped shifting block can stably shift the shoulder pole hook to move. In addition, the arc-shaped transition structure enables the wedge-shaped shifting block to deflect and pass over the shoulder pole hook when encountering resistance in the reverse movement, so that the conveying mechanism can realize the step-by-step reciprocating continuous conveying of carcasses, and the operation is reliable;

[0019] Among them, 1-4 wedge-shaped blocks near the entry side can effectively block the pole hook coming quickly from the entry switch, ensuring that the carcasses in the pre-cooling room can move step by step.

[0020] These and other objects, features and advantages of the present invention will be fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The schematic diagram of the structure of the pipe rail stepping conveying mechanism of the present application is shown.

[0022] Figure 2 A partial structural schematic diagram of the pipe rail stepping conveying mechanism of the present application is shown.

[0023] Figure 3 A partial side structural schematic diagram of the pipe rail stepping conveying mechanism of the present application is shown.

[0024] Figure 4 A partial rear view structural schematic diagram of the pipe rail stepping conveying mechanism of the present application during reverse movement is shown.

[0025] Figure 5The schematic diagram of the structure of the nylon shifting block in the present application when shifting the shoulder pole hook is shown.

[0026] Figure 6 A schematic diagram of the structure of the wedge-shaped stopper in the present application when blocking the shoulder pole hook is shown. DETAILED DESCRIPTION

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0030] refer to Figures 1 to 6 The embodiment of the present application provides a pipe-rail step-by-step conveying mechanism for conveying carcasses, such as pig carcasses, in a pre-cooling room, wherein an inlet turnout 10 and an outlet turnout 20 are respectively provided on the inlet side and the outlet side of the pre-cooling room, wherein the inlet turnout 10 and the outlet turnout 20 are both pneumatic turnouts for quickly conveying carcasses by conventional technical means.

[0031] The pipe rail step-by-step conveying mechanism includes a track beam 30 and a pipe rail 40. The pipe rail 40 is horizontally installed directly below the track beam 30, and is used to connect the conveying rails of the entry turnout 10 and the exit turnout 20, respectively, so that the pole hook 50 for hooking the carcass can move, that is, the pole hook 50 moves from the conveying rail of the entry turnout 10 to the pipe rail 40, and then moves from the pipe rail 40 to the conveying rail of the exit turnout 20. The track beam 30 is provided with a signal bracket 31 near the entry side and the exit side, respectively, wherein the signal bracket 31 includes a trapezoidal sensing rod 311 extending in the horizontal direction and an L-shaped adapter plate 312 connected to the outer end of the middle part of the trapezoidal sensing rod 311. When the pole hook 50 hooking the carcass moves from the entry switch 10 to the pipe rail 40 or moves from the pipe rail 40 to the exit switch 20, the pole hook 50 presses the inclined side wall of the trapezoidal sensing rod 311, so that the trapezoidal sensing rod 311 drives the L-shaped adapter plate 312 to swing outward, and then obtains a sensing signal through the proximity switch in the signal bracket 31, and identifies the pole hook. This sensing method has higher sensing accuracy, and the pole hook 50 will not damage the proximity switch.

[0032] The track beam 30 is provided with a toggle rod 32 capable of directional reciprocating movement in the horizontal direction, and the bottom of the toggle rod 32 is evenly connected to a wedge-shaped toggle block 33 in a hinged manner, wherein the hinge allows the wedge-shaped toggle block 33 to have an activity space in the moving direction of the toggle rod 32, that is, this hinge relationship allows the wedge-shaped toggle block 33 to only be able to directional swing, wherein the activity space is configured as follows: when the toggle rod 32 moves from the entry side to the exit side (i.e., moves to the right), the wedge-shaped toggle block 33 can be toggled The pole hook 50 hooked on the pipe rail 40 moves step by step toward the direction close to the outbound side, and when the toggle rod 32 moves in the reverse direction, the wedge-shaped block 33 can deflect in the activity space and move in the reverse direction to pass over the pole hook 50. This deflection is an automatic behavior based on the resistance formed by the pole hook 50. Since the pole hook 50 is hooked with a carcass and has a large weight, the wedge-shaped block 33 can easily deflect when moving in the reverse direction. The specific structure of the wedge-shaped block 33 will be further described in detail later. In this way, the carcasses can be moved step by step one by one on the pipe rail 40 in the pre-cooling room through the wedge-shaped blocks 33 evenly distributed and hingedly connected on the toggle rod 32. Not only the conveying speed is controllable, but also the distance between two adjacent carcasses is controllable, which can avoid or reduce the problem of cross contamination between adjacent carcasses, and the conveying is more stable and reliable, with high conveying efficiency, which can effectively reduce labor costs.

[0033] In one embodiment, the top of the track beam 30 is fixed to the on-site main steel beam through a secondary steel beam, and at least one linear telescopic element 34 is installed in the secondary steel beam, and the telescopic end of the linear telescopic element 34 is connected to the toggle rod 32 through an adapter plate 341, so as to drive the toggle rod 32 to move back and forth in a certain direction, wherein the linear telescopic element 34 is preferably a cylinder, and the reciprocating operation is more reliable, and the energy consumption is low, which can save costs. In addition, based on factors such as the length of the pipe-rail stepping conveying mechanism and the weight of the carcass, the linear telescopic element 34 is preferably 1-3, wherein a single linear telescopic element 34 can drive the toggle rod 32 to move back and forth in a certain direction, wherein the coordinated work of multiple linear telescopic elements 34 can also provide a higher and more stable reciprocating driving force, and even if a certain linear telescopic element 34 fails, it still does not affect the movement of the toggle rod 32.

[0034] In one embodiment, the track beam 30 is composed of U-shaped steels that are horizontally symmetrically distributed, and the opening of the U-shaped steel is located on the inner side. A slider 35 is provided in a matching manner in the moving space formed by the two U-shaped steels, and the slider 35 is connected to the top of the toggle rod 32. In this way, the accuracy of the moving direction of the toggle rod 32 and the stability of the movement can be ensured through the cooperation of the slider 35 and the track beam 30, so that the movement of the carcass is more stable.

[0035] In one embodiment, a U-shaped groove 301 is provided at the bottom of the toggle lever 32. The wedge-shaped toggle block 33 is hinged at the groove walls on both sides of the U-shaped groove 301, and the wedge-shaped toggle block 33 has a limiting top 331. When the wedge-shaped toggle block 33 toggle the shoulder pole hook 50, the limiting top 331 abuts against the groove bottom of the U-shaped groove 301, and the lower part of the wedge-shaped toggle block 33 is inclined obliquely downward close to the outbound side, so that the wedge-shaped toggle block 33 can be limited by the cooperation of the limiting top 331 and the groove bottom, so as to prevent the wedge-shaped toggle block 33 from deflecting toward the direction close to the inbound side, and thus the shoulder pole hook 50 can be stably toggle to move;

[0036] An arc-shaped transition structure 332 is provided on the side of the limiting top 331 close to the outbound side, and the hinge point between the wedge-shaped shift block 33 and the shift rod 32 is close to the arc-shaped transition structure 332, so that when the shift rod 32 moves in the opposite direction, the wedge-shaped shift block 33 can be deflected in a directional manner (towards the upper right) to make the limiting top 331 away from the bottom of the U-shaped groove 301, so that the wedge-shaped shift block 33 can pass over the shoulder pole hook, thereby realizing the reciprocating step-by-step conveying of the shoulder pole hook 50 by the wedge-shaped shift block 33.

[0037] Further preferably, a shifting plane structure 333 is provided at the lower part of the side of the wedge-shaped shift block 33 close to the warehouse exit side, so that when the wedge-shaped shift block 33 shifts the carrying pole hook 50, the shifting plane structure 333 can abut against the surface of the carrying pole hook 50, and the contact area is larger, which can further improve the stability and reliability of the wedge-shaped shift block 33 in shifting the carrying pole hook 50.

[0038] Taking into account that the carcass may swing left and right when the wedge-shaped shift block 33 shifts the carcass to move, if one wants to control the carcass to stay at a predetermined position, the moving speed of the shift rod 32 may be reduced. Obviously, this will reduce the conveying efficiency of the carcass. Therefore, in one embodiment, a groove (or a horizontal groove) is provided at the top of the pipe rail 40 corresponding to the wedge-shaped shift block 33 at a predetermined position, so that when the wedge-shaped shift block 33 shifts the pole hook 50 into place, the pole hook 50 can be located exactly in the groove, so that the pole hook 50 can be limited by the groove during the forward conveying of the carcass, so that the carcass can stay accurately at the predetermined position, and at the same time, the shift rod 32 can move back and forth at a normal moving speed without affecting the conveying efficiency, and then the shift rod 32 moves in the opposite direction.

[0039] In addition, the moving speed of the carcass on the inbound turnout 10 and the outbound turnout 20 outside the pre-cooling room is relatively fast, that is, when the carcass just enters the pipe rail 40 of the pre-cooling room from the inbound turnout 10, the carcass has a large moving inertia and a yaw inertia. If no restriction is made, it will obviously affect the normal transportation of the carcass on the pipe rail 40. Therefore, the bottom of the toggle rod 32 is evenly connected with a wedge-shaped stopper 36 in the U-shaped groove 301 in a hinged manner. There are 1 to 4 wedge-shaped blocks 36, which are correspondingly arranged on the rear side of 1 to 4 wedge-shaped blocks 33 close to the inbound side, that is, on the side close to the outbound side. At the same time, each wedge-shaped block 33 cooperates with a wedge-shaped block 36 to clamp and move the shoulder pole hook 50, that is, the wedge-shaped block 36 blocks the carcass just entering the inbound turnout 10. In addition, if only one wedge-shaped block 36 is used for blocking, although it can be directly The moving speed of the carcass is reduced, but the effect on the inertia of the carcass yaw may be limited, and there is still the problem that the inertial yaw of the carcass changes the moving speed of the carcass. Therefore, it is best to form a progressive block by a plurality of wedge-shaped blocks 36 distributed at intervals to weaken the yaw inertia of the carcass until it disappears, wherein the distribution number of the wedge-shaped blocks 36 mainly refers to the difference between the moving speed of the carcass on the entry switch 10 and the moving speed of the carcass on the pipe rail 40. In addition, the wedge-shaped block 36 not only plays a blocking or progressive blocking role, but also cooperates with the wedge-shaped shifting block 33 to convey one or more carcasses close to the entry side in a clamping manner, which can further improve the conveying stability of these carcasses with large inertia (including moving inertia and yaw inertia), and at the same time force these carcasses to quickly stabilize. Among the carcasses blocked by 1-4 wedge-shaped blocks, the closer to the entry switch, the greater the moving inertia and yaw inertia of the carcass;

[0040] The outer side of the wedge-shaped stopper 36 is connected to an L-shaped guide plate 361, and the outer side of the track beam 30 is provided with a partial L-shaped slide rail 37, wherein the partial L-shaped slide rail 37 includes a horizontal top 371 and an inclined side 372, wherein the inclined side 372 extends obliquely downward away from the horizontal top 371 (extending in the horizontal direction), and the partial L-shaped slide rail 37 is respectively matched with the L-shaped guide plate 361, so that the wedge-shaped shifting block 36 shifts the shoulder pole hook 50 close to the groove. When the toggle rod 32 moves in the opposite direction, the L-shaped guide plate 361 can gradually move to the horizontal top 371 along the inclined side portion 372, and when the toggle rod 32 moves in the opposite direction, the L-shaped guide plate 361 can drive the wedge-shaped stopper 36 to reset, so that the shoulder pole hook 50 can smoothly reach the groove position and stay there. At the same time, when the toggle rod 32 moves in the opposite direction, since the L-shaped guide plate 361 is located at the horizontal top 371 of the L-shaped slide rail 37 and moves along the horizontal top 371, it will not affect the shoulder pole hook 50.

[0041] The wedge-shaped shifting block 33 and the wedge-shaped stopper 36 are staggered in the horizontal and vertical directions of the moving direction of the shifting rod 32 .

[0042] Similarly, considering that the carcass transported by the entry turnout 10 to the pipe rail 40 has a large moving inertia and often collides with the wedge-shaped shifting block 33, the wedge-shaped shifting block 33 is composed of a metal shifting block 3301 close to the entry side and the remaining multiple nylon shifting blocks 3302, wherein there are generally a plurality of nylon shifting blocks 3302, wherein the bottom of the metal shifting block 3301 is pointed, so that the good structural characteristics of the metal material (higher strength and more durability) can be used to directly hit the carcass transported by the entry turnout 10. The metal shift block 3301 has a long service life for the shoulder pole hook 50 that is forked over 10, and the pointed tip at the bottom has a smaller blocking area, which can ensure that the shoulder pole hook 50 moves over more quickly. The bottom of the nylon shift block 3302 is parallel to the limiting top 331, so that the bottom of the nylon shift block 3302 has good structural strength, which can more smoothly move the shoulder pole hook 50. In addition, nylon is light in weight and not easy to damage the shoulder pole hook. It is also low in cost and has minimal noise from colliding with the shoulder pole hook 50 during use.

[0043] In one embodiment, the track beam 30 is connected to a guard rail 38 at the bottom near the entry side, and the guard rail 38 extends in an arc shape at one end near the entry switch 10 to support the pole hook 50 on the inside when the pole hook 50 moves from the entry switch 10 to the pipe rail 40, so that the guard rail 38 can provide a certain friction resistance to the pole hook 50 entering the pipe rail 40 from the entry switch 10, which can not only slow down the movement speed of the pole hook 50, but also reduce the shaking of the carcass.

[0044] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A pipe-rail step-by-step conveying mechanism is used to convey carcasses in a pre-cooling room, wherein an inlet turnout and an outlet turnout are respectively provided on the inlet side and the outlet side of the pre-cooling room, and the characteristics are: The pipe-rail step-by-step conveying mechanism comprises a track beam and a pipe rail, wherein the pipe rail is horizontally installed directly below the track beam and is used to respectively connect the conveying rails of the entry switch and the exit switch for the shoulder pole hook of the carcass to move, the track beam is respectively provided with signal brackets near the entry side and the exit side, a toggle rod capable of directional reciprocating movement in a horizontal direction is provided in the track beam, the bottom of the toggle rod is evenly connected with a wedge-shaped toggle block in an articulated manner, the articulation enables the wedge-shaped toggle block to have an activity space in the moving direction of the toggle rod, and the activity space is configured as follows: when the toggle rod moves from the entry side to the exit side, the wedge-shaped toggle block can toggle the shoulder pole hooked on the pipe rail to move step by step in the direction close to the exit side, and when the toggle rod moves in the opposite direction, the wedge-shaped toggle block can deflect in the activity space and move in the opposite direction to pass over the shoulder pole hook.

2. The pipe rail stepping conveying mechanism according to claim 1, characterized in that: The top of the track beam is fixed to the on-site main steel beam through a secondary steel beam, and at least one linear telescopic element is installed in the secondary steel beam. The telescopic end of the linear telescopic element is connected to the toggle rod through an adapter plate.

3. The pipe rail stepping conveying mechanism according to claim 2, characterized in that: The linear telescopic element is a cylinder, and the number of the linear telescopic element is 1-3.

4. The pipe rail stepping conveying mechanism according to claim 1, characterized in that: The track beam is composed of U-shaped steels that are horizontally symmetrically distributed, and the openings of the U-shaped steels are located on the inner side. A slider is arranged in the moving space formed by two U-shaped steels, and the slider is connected to the top of the toggle rod.

5. The pipe rail step-by-step conveying mechanism according to claim 1, characterized in that: A U-shaped groove is provided at the bottom of the shifting rod, the wedge-shaped shifting block is hinged at the groove walls on both sides of the U-shaped groove, and the wedge-shaped shifting block has a limiting top. When the wedge-shaped shifting block shifts the shoulder pole hook, the limiting top abuts against the groove bottom of the U-shaped groove, and the lower part of the wedge-shaped shifting block is inclined obliquely downward close to the outbound side; An arc-shaped transition structure is provided on the side of the limit top close to the outbound side, and the hinge point between the wedge-shaped shift block and the shift rod is close to the arc-shaped transition structure, so that when the shift rod moves in the opposite direction, the wedge-shaped shift block can be deflected in a directional manner to make the limit top away from the bottom of the U-shaped groove.

6. The pipe rail step-by-step conveying mechanism according to claim 5, characterized in that: A shifting plane structure is provided at the lower part of one side of the wedge-shaped shifting block close to the outbound side, so that when the wedge-shaped shifting block shifts the shoulder pole hook, the shifting plane structure can abut against the surface of the shoulder pole hook.

7. The pipe rail step-by-step conveying mechanism according to claim 5, characterized in that: A groove is provided on the top of the pipe rail corresponding to the wedge-shaped shifting block, so that when the wedge-shaped shifting block shifts the pole hook into place, the pole hook can be located exactly in the groove.

8. The pipe rail step-by-step conveying mechanism according to claim 7, characterized in that: The bottom of the toggle rod is evenly connected with a wedge-shaped block in the U-shaped groove in an articulated manner. There are 1-4 wedge-shaped blocks, which are correspondingly arranged on the rear side of 1-4 wedge-shaped blocks close to the inbound side, that is, on the side close to the outbound side. The wedge-shaped block cooperates with the wedge-shaped block to clamp and move the shoulder pole hook. An L-shaped guide plate is connected to the outer side of the wedge-shaped stopper, and an L-shaped slide rail is arranged on the outer side of the track beam, wherein the L-shaped slide rail comprises a horizontal top and an inclined side portion, wherein the inclined side portion extends obliquely downward away from the horizontal top, and the L-shaped slide rail cooperates with the L-shaped guide plates respectively, so that when the wedge-shaped shifting block shifts the shoulder pole hook close to the groove, the L-shaped guide plate can gradually move to the horizontal top along the inclined side portion, and when the shifting rod moves in the opposite direction, the L-shaped guide plate can drive the wedge-shaped stopper to reset.

9. The pipe rail step-by-step conveying mechanism according to claim 1, characterized in that: The wedge-shaped shifting block is composed of a metal shifting block close to the storage entry side and the remaining multiple nylon shifting blocks. The bottom of the metal shifting block is pointed, and the bottom of the nylon shifting block is parallel to the limit top.

10. The pipe rail step-by-step conveying mechanism according to claim 1, characterized in that: The track beam is connected with a guard rail at the bottom near the entry side, and the guard rail extends in an arc shape at one end near the entry switch to support the shoulder pole hook on the inner side when the shoulder pole hook moves from the entry switch to the pipe rail.

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