A transport device for raw materials of grid frame rods

Abstract

The present invention relates to the technical field of transportation devices, and specifically discloses a transportation device for grid frame rod raw materials, including: a chain conveyor, a plate chain machine, and a conveying track. A plurality of hanging frames are slidably arranged in the conveying track, and a clamping assembly flexibly connected below the hanging frames. The clamping assembly includes an outer insertion rod and an inner insertion rod. A receiving groove is formed at the bottom of the outer insertion rod, and a contact rod that deflects outward from the receiving groove is rotatably arranged in the receiving groove in a resetable manner. After the contact rod deflects, it abuts against the bottom of the internal thread hole of the grid frame rod to lock the grid frame rod. The plate chain machine is provided with multiple groups of longitudinal tracks, and clamping claws for clamping the grid frame rods are slidably arranged on each group of longitudinal tracks. A limiting baffle is arranged on the clamping claws, and a V-shaped chute is arranged on one side of the plate chain machine; when the inner insertion rod of the present invention slides in the V-shaped chute, it can be directly unlocked without manual unlocking, so that the grid frame rod abuts against the limiting baffle arranged on the clamping claws, and the position where the code is marked on the grid frame rod is fixed.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation devices, and particularly relates to a transportation device for raw materials of grid bars. Background Art

[0002] Grid bars are connected through nodes to form a space grid structure, which has the characteristics of light weight, high strength, and large span, and is applied to large-span buildings, such as gymnasiums, airports, exhibition halls, etc. When processing grid bars, a series of processes such as cutting, welding, shot blasting for rust removal, painting, and coding are required. After the production of grid steel pipes, it is necessary to paint and dry the grid steel pipes. When painting and drying the grid steel pipes, the grid steel pipes are lifted to make them in a vertical state for painting and drying work. After the painting and drying of the grid steel pipes are completed, it is necessary to disassemble the grid and place the grid steel pipes flat before coding.

[0003] The Chinese patent document with the authorization announcement number CN221478705U discloses a discharging device for grid steel pipes after painting, including a chain conveying mechanism, a support rod, and a plate chain machine. Slideways are arranged in the middle of the front and back sides of the chain conveying mechanism. U-shaped fixing rods are arranged on the slideways. A connecting ring is arranged at the bottom of the U-shaped fixing rod. A sleeve ring is arranged at the bottom of the connecting ring. A buckle is arranged at the bottom of the sleeve ring. A stop rod is arranged on the support rod. A support mechanism is arranged on the top of the plate chain machine. A positioning rod is arranged at the lower part of the plate chain machine. A first roller is arranged in the slideway. A first connecting shaft is arranged on one side of the first roller, and the first connecting shaft is connected to the U-shaped fixing rod.

[0004] In the above technical solution, the grid bars are conveyed by setting a chain conveyor, and at the same time, a plate chain machine and a support mechanism are arranged at the bottom of the grid bars. While the chain conveyor conveys the grid bars, the support mechanism slides towards the other side of the plate chain machine, gradually laying the grid bars flat. However, after laying flat, it is still necessary for the staff to quickly release the connection buckle between the grid bars and the chain conveying mechanism. At the same time, each time the grid bars are laid flat, their positions on the support mechanism are not fixed, and it is necessary to re-clamp and position the grid bars before coding. Summary of the Invention

[0005] The present invention provides a transportation device for raw materials of grid bars, aiming to solve the problem that the connection between the grid bars and the buckle cannot be quickly released in the transportation device for raw materials of grid bars in the related art.

[0006] A transportation device for raw materials of grid frame rods, comprising: a chain conveyor and a plate chain machine. The chain conveyor includes two horizontal conveying tracks arranged in an up-and-down staggered manner. A conveying track inclined downward from left to right is connected between the two conveying tracks. A plurality of hanging brackets are slidably arranged in the conveying track, and a clamping component flexibly connected below the hanging brackets. The clamping component includes an outer insertion rod and an inner insertion rod. A receiving groove is formed at the bottom of the outer insertion rod. A contact rod deflecting outward from the receiving groove is rotatably arranged in the receiving groove in a resetable manner. After the contact rod deflects, it abuts against the bottom of the internal thread hole of the grid frame rod to lock the grid frame rod. When the contact rod rotates to one side, the outer insertion rod is slidably arranged on the grid frame rod with upper and lower limits. The inner insertion rod is slidably arranged in the outer insertion rod with upper and lower limits. When the inner insertion rod moves downward, it contacts one end of the contact rod and makes the contact rod rotate into the receiving groove;

[0007] The plate chain machine is provided with multiple groups of longitudinal tracks. A clamping claw for clamping the grid frame rod is slidably arranged on each group of longitudinal tracks. A limiting baffle is arranged on the clamping claw. A V-shaped chute is arranged on one side of the plate chain machine. When the grid frame rod is in a horizontal state, the inner insertion rod enters the V-shaped chute and slides downward in the outer insertion rod. After the inner insertion rod abuts against the outer insertion rod, they slide outward together to release the locking of the grid frame rod by the clamping component.

[0008] The effect is that: the grid frame rod is transported by the chain conveyor. When one side of the grid frame rod contacts the clamping claw on the plate chain machine, the grid frame rod gradually changes to a horizontal state during the transportation process. When the end of the inner insertion rod moves into the V-shaped chute, the inner insertion rod first moves towards the bottom of the outer insertion rod, making the contact rod rotate into the receiving groove so that the contact rod no longer abuts against the bottom of the internal thread hole of the grid frame rod, and then moves outward together with the outer insertion rod to finally release the locking of the grid frame rod by the clamping component. There is no need for manual operation to unlock the clamping component. When the inner insertion rod moves towards the bottom of the outer insertion rod, it pushes the grid frame rod to abut against the limiting baffle arranged on the clamping claw, and then the grid frame rod is clamped by the clamping claw. Subsequently, when coding the grid frame rod, the position of the code on the grid frame rod is fixed.

[0009] Preferably, a rotating shaft is fixedly arranged in the middle of the contact rod. The rotating shaft is rotatably arranged in the receiving groove. A torsion spring is arranged between the rotating shaft and the inner wall of the receiving groove; by arranging the torsion spring, the contact rod deflects towards the outside of the receiving groove in the initial state and abuts against the bottom of the internal thread hole of the grid frame rod when passing through the internal thread hole of the grid frame rod.

[0010] Preferably, the diameter of the outer insertion rod is smaller than the diameter of the internal thread hole of the grid frame rod. The internal thread hole of the grid frame rod is d millimeters, and the diameter of the outer insertion rod is less than d millimeters. The outer insertion rod and the internal thread hole of the grid frame rod are in clearance fit; the clearance fit between the outer insertion rod and the internal thread hole of the grid frame rod enables the outer insertion rod to move along with the inner insertion rod when the inner insertion rod pulls the outer insertion rod to move towards the outside of the internal thread hole of the grid frame rod.

[0011] Preferably, an annular platform is provided at the top of the outer insertion rod. The annular platform and the abutting rod limit the sliding distance of the outer insertion rod on the grid rod. When the inner insertion rod moves towards the bottom of the outer insertion rod, it pushes the annular platform against the top of the grid rod, causing the outer insertion rod to move a short distance into the grid rod, enabling the abutting rod to deflect. At the same time, when the inner insertion rod slides in the V-shaped chute, it can push the grid rod into contact with the limit baffle.

[0012] Preferably, an enlarged hole groove is provided in the inner hole of the outer insertion rod, and an annular protrusion is provided at the lower end of the inner insertion rod. The annular protrusion is slidably arranged in the enlarged hole groove. When the grid rod is in a vertical state, the top of the annular protrusion abuts against the top of the enlarged hole groove to prevent the outer insertion rod from being disconnected from the inner insertion rod.

[0013] Preferably, an elastic member is provided at the bottom of the inner insertion rod, and the bottom of the outer insertion rod is a shrinkage hole. When the inner insertion rod abuts against the abutting rod, the elastic member extends into the shrinkage hole and abuts against the shrinkage hole. When the inner insertion rod slides towards the bottom of the outer insertion rod, the elastic member is stuck in the shrinkage hole and abuts against the shrinkage hole. When the inner insertion rod moves towards the outside of the internal thread hole of the grid rod, the inner insertion rod and the outer insertion rod move simultaneously, and both are disengaged from contact with the grid rod to release the locking of the grid rod.

[0014] Preferably, the elastic member is a rubber protrusion. When the inner insertion rod moves towards the bottom of the outer insertion rod, the rubber protrusion is inserted into the shrinkage hole and abuts against the shrinkage hole. By providing the rubber protrusion, when the inner insertion rod moves towards the bottom of the outer insertion rod, the rubber protrusion is inserted into the shrinkage hole. When the inner insertion rod moves towards the outside of the internal thread hole of the grid rod, relying on the friction between the rubber protrusion and the shrinkage hole, the outer insertion rod and the inner insertion rod move simultaneously towards the outside of the internal thread hole of the grid rod.

[0015] Preferably, the elastic member is at least one elastic sheet fixedly arranged at the bottom of the inner insertion rod. When the inner insertion rod moves towards the bottom of the inner insertion rod, the elastic sheet deflects towards the side wall of the inner insertion rod and fits against the side wall of the inner insertion rod. When the elastic sheet passes through the shrinkage hole at the bottom of the outer insertion rod, it abuts against the bottom of the shrinkage hole. When the inner insertion rod moves towards the outside of the internal thread hole of the grid rod, the outer insertion rod is pushed upward by the elastic sheet.

[0016] Preferably, a connecting rope is provided below the hanger. The connecting rope is connected to the inner insertion rod. When the grid rod changes from a vertical state to a horizontal state, the connecting rope is in a slack state, providing sufficient moving distance for the inner insertion rod to move out of the internal thread hole of the grid rod. By flexibly connecting the hanger to the inner insertion rod, when the grid rod changes from a vertical state to a horizontal state, it can push the grid rod towards the limit baffle, and the clamping assembly can move towards the outside of the internal thread hole of the grid rod.

[0017] Preferably, a V-shaped chute is provided on one side of the plate chain machine. The V-shaped chute includes chute one and chute two. A downward slider is provided at the end of the inner insertion rod. When the slider slides in chute one, the inner insertion rod slides towards the bottom of the outer insertion rod. When the slider slides in chute two, the inner insertion rod and the outer insertion rod move synchronously towards the outside of the internal thread hole of the grid bar.

[0018] Adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0019] 1. By providing two horizontal conveying tracks and a conveying track inclined downward from left to right, when the grid bar slides in the conveying track, its bottom contacts the clamping claws on the plate chain machine and gradually changes from a vertical state to a horizontal state during the movement to facilitate subsequent coding operations;

[0020] 2. By providing a clamping component and a V-shaped chute, when the inner insertion rod enters the V-shaped chute and slides downward in the outer insertion rod, after the inner insertion rod abuts against the outer insertion rod, they slide out together. When the inner insertion rod slides towards the bottom of the outer insertion rod, it pushes the abutting rod to rotate and the abutting rod forms a certain clamping force on the inner insertion rod. When the inner insertion rod slides towards the outside of the internal thread hole of the grid bar, it moves out of the internal thread hole of the grid bar together with the outer insertion rod, thus releasing the locking of the grid bar without manual operation;

[0021] 3. When the inner insertion rod moves towards the bottom of the outer insertion rod, it pushes one end of the grid bar to abut against the limit baffle, enabling the coding device to code at a fixed position on the grid bar during the coding operation of the grid bar. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is an exploded structure schematic diagram of the clamping component of the present invention.

[0024] Figure 3 It is a schematic diagram of the cooperation structure of the accommodation groove, the abutting rod and the torsion spring of the present invention.

[0025] Figure 4 It is a schematic diagram of the abutting rod abutting against the internal thread hole of the grid bar of the present invention.

[0026] Figure 5 It is a schematic diagram of the state after the inner insertion rod abuts against the abutting rod of the present invention.

[0027] Figure 6 It is a schematic diagram of the elastic member being a rubber protrusion of the present invention.

[0028] Figure 7 It is a schematic diagram of the elastic member being an elastic sheet of the present invention.

[0029] Figure 8 Schematic diagram of the state where the insertion rod of the present invention is about to enter the V-shaped chute.

[0030] Reference numerals:

[0031] 1, chain conveyor; 11, conveying track; 12, hanging bracket; 13, connecting rope; 2, plate chain machine; 21, clamping claw; 22, limit baffle; 3, clamping component; 31, outer insertion rod; 311, annular platform; 312, reaming groove; 313, shrinkage hole; 32, inner insertion rod; 321, annular protrusion; 322, elastic member; 33, receiving groove; 34, abutting rod; 35, torsion spring; 4, V-shaped chute; 41, chute 1; 42, chute 2. Detailed implementation manners

[0032] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0033] As Figures 1 - 8 shown, a grid bar raw material transportation device includes a chain conveyor 1, a plate chain machine 2, a clamping claw 21 provided on the plate chain machine 2 for clamping the grid bar, and a clamping component 3 that moves with the movable end of the chain conveyor 1 and is used for clamping the grid bar; the grid bar is transported by the chain conveyor 1, and as the chain conveyor 1 and the plate chain machine 2 move, the grid bar is changed from a vertical state to a horizontal state and is clamped by the clamping claw 21 to facilitate subsequent coding operations on the grid bar. As the chain conveyor 1 conveys, the clamping component 3 automatically releases the locking of the grid bar.

[0034] The chain conveyor 1 includes two horizontally arranged conveying tracks 11 that are arranged in a staggered manner up and down. A conveying track 11 that is inclined downward from left to right is connected between the two conveying tracks 11. The grid bar enters the inclined downward conveying track 11 from the horizontally arranged conveying track 11 above and finally enters the horizontally arranged conveying track 11 below. During this process, the gap between the grid bar and the plate chain machine 2 gradually decreases, and when the grid bar enters the horizontally arranged conveying track 11 below, it is in a horizontal state.

[0035] A plurality of hanging brackets 12 are slidably arranged in the conveying track 11. The hanging brackets 12 move along the conveying track 11. A clamping component 3 is flexibly connected below the hanging brackets 12. The clamping component 3 includes an outer insertion rod 31 and an inner insertion rod 32. The inner insertion rod 32 is slidably arranged in the outer insertion rod 31 with upper and lower limits. A receiving groove 33 is formed at the bottom of the outer insertion rod 31. An abutting rod 34 that deflects outward is rotatably arranged in the receiving groove 33 in a resetable manner. When locking the grid rod on the clamping component 3, first insert the outer insertion rod 31 into the internal thread hole of the grid rod. The abutting rod 34 first contracts in the receiving groove 33 when passing through the internal thread hole. When the abutting rod 34 passes through the internal thread hole, the abutting rod 34 deflects outward towards the outside of the receiving groove 33. At this time, the locking of the grid rod by the clamping component 3 can be completed. Under the action of the gravity of the grid rod, the abutting rod 34 abuts against the bottom of the internal thread hole of the grid rod.

[0036] A rotating shaft is fixedly arranged in the middle of the abutting rod 34. The rotating shaft is rotatably arranged in the receiving groove 33. A torsion spring 35 is arranged between the rotating shaft and the inner wall of the receiving groove 33. In the initial state, one end of the abutting rod 34 deflects outward towards the outside of the receiving groove 33. When the inner insertion rod 32 slides towards the bottom of the outer insertion rod 31, the inner insertion rod 32 contacts the bottom of the abutting rod 34 and pushes the abutting rod 34 to rotate, so that the abutting rod 34 rotates into the receiving groove 33. At this time, pull the outer insertion rod 31 and the inner insertion rod 32 upward together, and the outer insertion rod 31 and the inner insertion rod 32 can be moved upward together to release the locking of the grid rod.

[0037] When pulling the inner insertion rod 32, to facilitate the removal of the outer insertion rod 31 and the inner insertion rod 32 from the internal thread hole of the grid rod together, the diameter of the outer insertion rod 31 is smaller than the diameter of the internal thread hole of the grid rod. The internal thread hole of the grid rod is d millimeters, and the diameter of the outer insertion rod 31 is less than d millimeters, so that the outer insertion rod 31 is in clearance fit with the internal thread hole of the grid rod.

[0038] When the abutting rod 34 rotates to one side, the outer insertion rod 31 is slidably arranged on the grid rod with upper and lower limits. When the grid rod is in a horizontal state, the abutting rod 34 abuts against the bottom of the internal thread hole of the grid rod. At this time, the abutting rod 34 cannot rotate. It is necessary to first push the outer insertion rod 31 a certain distance towards the bottom of the internal thread hole of the grid rod to provide a rotation space for the rotation of the abutting rod 34. An annular platform 311 is arranged at the top of the outer insertion rod 31. The sliding distance of the outer insertion rod 31 on the grid rod is limited by the annular platform 311 and the abutting rod 34. When the inner insertion rod 32 moves towards the bottom of the outer insertion rod 31, it first contacts the abutting rod 34 and pushes the abutting rod 34 to move downward until the annular platform 311 contacts the top of the grid rod. When the inner insertion rod 32 moves downward again, it further pushes the abutting rod 34 to rotate so that the abutting rod 34 rotates into the receiving groove 33.

[0039] When the grid frame rod is in a vertical state, there is a tendency for the outer insertion rod 31 and the inner insertion rod 32 to slide relative to each other. To prevent the disconnection of the outer insertion rod 31 and the inner insertion rod 32, an enlarged hole groove 312 is provided on the inner hole of the outer insertion rod 31, and an annular protrusion 321 is provided at the lower end of the inner insertion rod 32. The annular protrusion 321 is slidably arranged in the enlarged hole groove 312. When the abutting rod 34 abuts against the bottom of the internal threaded hole of the grid frame rod, the annular protrusion 321 abuts against the upper end of the enlarged hole groove 312 to limit the relative sliding of the outer insertion rod 31 and the inner insertion rod 32.

[0040] When the inner insertion rod 32 slides towards the bottom of the outer insertion rod 31, it pushes the abutting rod 34 to deflect. At this time, the torsion spring 35 is twisted. Correspondingly, the abutting rod 34 will apply a clamping force to the inner insertion rod 32. At this time, when the inner insertion rod 32 moves outward towards the outside of the internal threaded hole of the grid frame rod, it will drive the outer insertion rod 31 to move outward together, realizing the unlocking of the grid frame rod by the clamping assembly 3.

[0041] In a further embodiment of the present invention, to ensure that when the inner insertion rod 32 moves outward towards the outside of the internal threaded hole of the grid frame rod, it applies sufficient driving force to the outer insertion rod 31 to move both of them out of the internal threaded hole of the grid frame rod at the same time, an elastic member 322 is provided at the bottom of the inner insertion rod 32, and the bottom of the outer insertion rod 31 is a shrinkage hole 313. When the inner insertion rod 32 abuts against the abutting rod 34, the elastic member 322 extends into the shrinkage hole 313 and abuts against the shrinkage hole 313. When the inner insertion rod 32 moves outward towards the outside of the internal threaded hole of the grid frame rod, under the dual action of the clamping force applied by the abutting rod 34 to the inner insertion rod 32 and the abutting force between the elastic member 322 and the shrinkage hole 313, the outer insertion rod 31 and the inner insertion rod 32 move outward towards the outside of the internal threaded hole of the grid frame rod at the same time.

[0042] As Figure 6 shown, the elastic member 322 is a rubber protrusion. When the inner insertion rod 32 moves towards the bottom of the outer insertion rod 31, the rubber protrusion inserts into the shrinkage hole 313 and abuts against the shrinkage hole 313. When the inner insertion rod 32 moves towards the outside of the internal threaded hole of the grid frame rod, the friction force between the rubber protrusion and the shrinkage hole 313 provides driving force for the synchronous movement of the outer insertion rod 31 and the inner insertion rod 32.

[0043] As Figure 7As shown, in a more preferred embodiment of the present invention, the elastic member 322 is at least one elastic sheet fixedly arranged at the bottom of the inner insertion rod 32. When the inner insertion rod 32 moves towards the bottom of the inner insertion rod 32, the elastic sheet deflects towards the side wall of the inner insertion rod 32 and fits on the side wall of the inner insertion rod 32. When the elastic sheet passes through the shrinkage hole 313, it abuts against the bottom of the outer insertion rod 31. When the inner insertion rod 32 moves towards the outside of the internal thread hole of the grid rod, the elastic sheet pushes the outer insertion rod 31 to move synchronously with the inner insertion rod 32. Specifically, the material of the elastic sheet is a shape memory metal material. When connecting the grid rod to the clamping assembly 3 again, the operator needs to first push the elastic sheet towards the inner insertion rod 32 so that the elastic sheet can pass upward through the shrinkage hole 313. At this time, the outer insertion rod 31 can be inserted into the internal thread hole of the grid rod again. Then, the abutting rod 34 can be made to abut against the bottom of the internal thread hole of the grid rod again. Correspondingly, the above-mentioned rubber protrusion is pushed upward above the shrinkage hole 313 so that the rubber protrusion is disengaged from contact with the shrinkage hole 313. The rubber material is polyurethane rubber.

[0044] A connecting rope 13 is arranged below the hanger 12, and the connecting rope 13 is connected to the inner insertion rod 32. When the grid rod changes from the vertical state to the horizontal state, the connecting rope 13 is in a relaxed state, providing enough moving distance for the inner insertion rod 32 to move out of the internal thread hole of the grid rod. In other embodiments of the present invention, the connecting rope 13 can be replaced by a flexible connecting piece such as a connecting chain.

[0045] The apron feeder 2 is provided with multiple groups of longitudinal tracks, and at least two groups of clamping claws 21 for clamping the grid rod are slidably arranged on each group of longitudinal tracks. When the grid rod enters the inclined conveying track 11, the bottom of the grid rod lands on the clamping claw 21 at the rear side. The clamping claw 21 clamps the grid rod and drives the clamping claw 21 to move towards one side. During this process, the clamping claw 21 clamps and moves the grid rod so that the grid rod tilts backward and then releases the clamping of the grid rod, allowing the grid rod to rest on the clamping claw 21. The clamping claw 21 moves towards the rear of the longitudinal track, and the grid rod gradually assumes a horizontal state under the action of gravity. Before the grid rod is in a horizontal state, the clamping claw 21 at the front moves to the bottom in front of the grid rod to support the grid rod. At this time, the grid rod is not clamped. The model of the clamping claw 21 is PGS-5-5 micro electromagnetic clamping claw. Each longitudinal track is an electric track, and the clamping claw 21 is installed at the movable end of the electric track. The clamping claw 21 is moved through the electric track to make the grid rod in a horizontal state. A limit baffle 22 is arranged on the clamping claw 21 at the rear side.

[0046] On one side of the plate chain machine 2, there is a V-shaped chute 4, which includes a chute one 41 and a chute two 42. At the end of the inner insertion rod 32, there is a downward slider. When the slider slides in the chute one 41, the inner insertion rod 32 slides towards the bottom of the outer insertion rod 31. That is, the abutting rod 34 deflects towards the receiving groove 33 and connects the outer insertion rod 31 and the inner insertion rod 32 together. When the slider slides to the end of the chute one 41, the grid bar abuts against the baffle. When the grid bar changes from the vertical state to the horizontal state, its position on the plate chain machine 2 is not fixed. That is to say, not all grid bars abut against the limit baffle 22. By the push of the inner insertion rod 32, the end of each grid bar abuts against the limit baffle 22. At this time, the positions of the grid bars on the plate chain machine 2 are the same. Then, the grid bars are clamped by the clamping claws 21, and the code can be printed at the same position of the grid bars when coding the grid bars. When the slider slides in the chute two 42, the inner insertion rod 32 and the outer insertion rod 31 move synchronously towards the outside of the internal thread hole of the grid bar, so that the clamping component 3 disengages the locking of the grid bar. The clamping component 3 moves to the subsequent process along with the chain conveyor 1, and then other grid bars are lifted. The chain conveyor 1 in the present invention is not only composed of two horizontal conveying tracks 11 and an inclined downward conveying track 11 as shown in the figure, but is circularly arranged.

[0047] Working principle of the present invention:

[0048] When conveying the sprayed grid bar to the coding position, it is necessary to change the grid bar from the horizontal state to the vertical state. By setting the clamping component 3, the grid bar is connected to the hanging bracket 12. When the hanging bracket 12 moves along the conveying track 11, it gradually changes from the vertical state to the horizontal state. When the inner insertion rod 32 passes through the V-shaped chute 4, the inner insertion rod 32 first moves towards the bottom of the outer insertion rod 31. At this time, the abutting rod 34 deflects into the receiving groove 33, and the abutting rod 34 exerts a certain clamping force on the inner insertion rod 32. When the inner insertion rod 32 moves towards the outside of the internal thread hole of the grid bar, the outer insertion rod 31 moves out synchronously, so that the clamping component 3 releases the locking of the grid bar, and no manual operation is required anymore. When the inner insertion rod 32 slides in the V-shaped chute 4, it exerts a moving thrust on the grid bar, so that when the grid bar falls on the clamping claws 21, it abuts against the limit baffle 22, and the subsequent coder can print the code at the same position of the grid bar.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A transportation device for raw materials of grid frame bars, comprising: Chain conveyor and plate chain conveyor, characterized in that: The chain conveyor includes two horizontal conveying tracks arranged vertically and staggered up and down. A conveying track inclined downward from left to right is connected between the two conveying tracks. A plurality of hanging brackets are slidably arranged in the conveying track. A clamping component is flexibly connected below the hanging bracket. The clamping component includes an outer insertion rod and an inner insertion rod. A receiving groove is opened at the bottom of the outer insertion rod. A contact rod deflecting outward from the receiving groove is rotatably arranged in the receiving groove in a resetable manner. After the contact rod deflects, it abuts against the bottom of the internal thread hole of the grid bar. The inner insertion rod is slidably arranged in the outer insertion rod with upper and lower limits, so that the contact rod rotates into the receiving groove; Multiple groups of longitudinal tracks are arranged on the plate chain conveyor. Clamping claws for clamping the grid bar are slidably arranged on each group of longitudinal tracks. A limiting baffle is arranged on the clamping claws. A V-shaped chute is arranged on one side of the plate chain conveyor. When the grid bar is in a horizontal state, the inner insertion rod enters the V-shaped chute and slides along the V-shaped chute; A rotating shaft is fixedly arranged in the middle of the contact rod. The rotating shaft is rotatably arranged in the receiving groove. A torsion spring is arranged between the rotating shaft and the inner wall of the receiving groove; The diameter of the outer insertion rod is smaller than the diameter of the internal thread hole of the grid bar. The outer insertion rod is in clearance fit with the internal thread hole of the grid bar. An annular platform is arranged at the top of the outer insertion rod. The annular platform and the contact rod limit the sliding distance of the outer insertion rod on the grid bar. An enlarged hole groove is arranged on the inner hole of the outer insertion rod. An annular protrusion is arranged at the lower end of the inner insertion rod. The annular protrusion is slidably arranged in the enlarged hole groove; An elastic member is arranged at the bottom of the inner insertion rod. The bottom of the outer insertion rod is a shrinkage hole. When the inner insertion rod abuts against the contact rod, the elastic member extends into the shrinkage hole and abuts against the shrinkage hole; The elastic member is a rubber protrusion. When the inner insertion rod moves towards the bottom of the outer insertion rod, the rubber protrusion inserts into the shrinkage hole and abuts against the shrinkage hole; The elastic member is at least one elastic sheet fixedly arranged at the bottom of the inner insertion rod. When the inner insertion rod moves towards the bottom of the inner insertion rod, the elastic sheet deflects towards the side wall of the inner insertion rod and fits against the side wall of the inner insertion rod.

2. The grid bar raw material transportation device according to claim 1, wherein, A connecting rope is arranged below the hanging bracket. The connecting rope is connected to the inner insertion rod. When the grid bar changes from a vertical state to a horizontal state, the connecting rope is in a slack state, providing enough moving distance for the inner insertion rod to move out of the internal thread hole of the grid bar.

3. The grid frame rod raw material transportation device according to claim 1 or 2, characterized in that, A V-shaped chute is arranged on one side of the plate chain conveyor. The V-shaped chute includes chute one and chute two. A downward slider is arranged at the end of the inner insertion rod. When the slider slides in chute one, the inner insertion rod slides towards the bottom of the outer insertion rod. When the slider slides in chute two, the inner insertion rod and the outer insertion rod move synchronously towards the outside of the internal thread hole of the grid bar.

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