A pull rod automatic feeding mechanism

Abstract

The present invention belongs to the technical field of rod feeding, and discloses an automatic feeding mechanism for a pull rod, including a frame, a feed hopper, a conveyor belt, and a lifting and transporting assembly for conveying the pull rod in the feed hopper to the conveyor belt, wherein the bottom wall of the feed hopper is tilted, a limit plate is fixedly connected to the inner side wall of the feed hopper, a moving block is slidably connected to the bottom of the feed hopper, a support block is fixedly connected to the leftmost side of the bottom wall of the feed hopper, a telescopic rod is tilted and slidably arranged on the limit plate, a push plate is fixedly connected to one end of the telescopic rod close to the moving block, and a push spring sleeved on the telescopic rod is arranged between the push plate and the limit plate; a connecting plate 1 is hingedly connected to one side of the bottom wall of the feed hopper close to the moving block, a connecting plate 2 is hingedly connected to one side of the moving block close to the connecting plate 1, and the connecting plate 1 is slidably connected to the connecting plate 2. The present invention has the effect of preventing the pull rod from falling during the conveying process and damaging the surface quality of the pull rod to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of rod feeding, and in particular to an automatic pull rod feeding mechanism. Background Art

[0002] A trolley in luggage usually refers to a retractable trolley on a suitcase or travel bag. This trolley is designed to facilitate the extraction and pushing of luggage, and is usually made of lightweight and durable materials such as aluminum alloy or plastic to ensure strength and durability.

[0003] The existing processing of tie rod pipes mainly includes two processes: pipe cutting and punching. Pipe cutting is the process of cutting the original long pipe into shorter pipes according to the processing requirements, and punching is the process of punching holes according to the hole position requirements of the short pipe. Therefore, the cut tie rod pipes need to be transported to the punching station. In the existing technology, the tie rod pipes are first transported to the silo, then moved to the slot between the two blocks, then lifted and moved out of the silo, and finally transported to the next station for processing.

[0004] Reference is made to the Chinese patent application document with publication number CN107555074A, which discloses a lifting-type automatic loading equipment, which includes an equipment body and a lifting device, a material storage device, a feeding device and a driving device arranged on the equipment body, the lifting device includes a chain and an upper sprocket group and a lower sprocket group cooperating with the chain, the upper sprocket group and the lower sprocket group are respectively arranged at the upper and lower parts of the equipment body, the chain is provided with a plurality of attached plates arranged at intervals along the running direction of the chain, and each attached plate is provided with a lifting component on the surface facing the material storage device.

[0005] With regard to the above-mentioned related technologies, during the process of conveying the tie rod pipe, the tie rod moves along the bottom wall of the silo to the lifting device. As the tie rod rolls, multiple pipes may easily enter the same slot. When the tie rod pipe is lifted in this case, it is easy for the tie rod pipe to fall off, causing collisions between the tie rod pipes, thereby affecting the surface quality of the tie rod pipe. Summary of the invention

[0006] In view of this, the present invention provides an automatic feeding mechanism for a pull rod, aiming to solve the problem that the pull rod is easy to fall during transportation.

[0007] In order to solve the above technical problems, the present invention provides an automatic feeding mechanism for a pull rod, comprising a frame, a feed hopper fixedly connected to the frame, a conveyor belt for conveying the pull rod to the next workstation, and a lifting and transportation component for conveying the pull rod in the feed hopper to the conveyor belt, wherein the bottom wall of the feed hopper is inclined, a limiting plate is fixedly connected to the inner wall of the feed hopper, a moving block is connected to the bottom of the feed hopper for sliding up and down, a support block is fixedly connected to the leftmost side of the bottom wall of the feed hopper, a telescopic rod is obliquely and slidingly arranged on the limiting plate, a push plate is fixedly connected to one end of the telescopic rod close to the moving block, and a push spring mounted on the telescopic rod is provided between the push plate and the limiting plate; a connecting plate 1 is hingedly connected to the side of the bottom wall of the feed hopper close to the moving block, a connecting plate 2 is hingedly connected to the side of the moving block close to the connecting plate 1, and the connecting plate 1 is slidably connected to the connecting plate 2.

[0008] By adopting the above technical scheme, the pull rod slides along the bottom wall of the feed hopper to the moving block, and the limit plate is set to allow a single pull rod to pass through, and then the pull rod moves to the moving block, and the moving block lifts the single pull rod when it moves upward, and the moving block can drive the connecting plate to move up and down while moving upward, and the connecting plate can push subsequent pull rods when it moves upward, thereby reducing the probability of material blockage and blocking subsequent pull rods at the same time, and the subsequent pull rods are moved and fall onto the moving plate when the moving block moves downward, and then the pull rod is repeatedly loaded, and then the pull rod abuts against the push plate and pushes the push plate to move, and then the push plate pushes the pull rod under the action of the push spring, and moves it to the support block, and the pull rod can be lifted and transported as the lifting and transporting assembly runs, thereby preventing the pull rod from falling during transportation to a certain extent, which is beneficial to protecting the surface quality of the pull rod.

[0009] Optionally, a plurality of buffer plates are provided in the feed hopper, and a connecting rod 1 is slidably connected to the left side of each buffer plate, and a shock-absorbing spring is sleeved on the connecting rod 1.

[0010] By adopting the above technical solution, when the pull rod enters the feed hopper and slides to the lowest point along the bottom wall of the feed hopper, when the pull rod reaches the bottom, impact will occur between the pull rods or between the pull rods and the feed hopper, which will affect the surface quality of the pull rod. The provision of a buffer plate and a shock-absorbing spring can reduce the impact of the pull rod after the pull rod contacts the buffer plate, which is beneficial to improving the surface quality of the pull rod.

[0011] Optionally, an adjustment component is provided on one side of the buffer plate, and the adjustment component is used to adjust the position of the pull rod in the feed hopper.

[0012] By adopting the above technical solution, the setting of the adjustment component can adjust the position of the tie rod in the feed hopper during the process of conveying the tie rod. On the one hand, it is convenient for the movement of the tie rod to facilitate the feeding of the tie rod. On the other hand, it keeps the tie rod in an active state to reduce the probability of tie rod blockage.

[0013] Optionally, the adjustment assembly includes a moving rod, a rotating rod, a second connecting rod and a baffle, the moving rod is connected to the moving plate, one end of the rotating rod is hinged to the moving rod, the other end of the rotating rod is hinged to the second connecting rod, the rotating rod and the second connecting rod are arranged perpendicular to each other, one end of the second connecting rod away from the moving rod is connected to the first connecting rod, the baffle is fixedly connected to the inner wall of the feed hopper, and the moving rod is arranged through the baffle.

[0014] By adopting the above technical solution, when it is necessary to move the pull rod in the feed hopper, the moving block can drive the moving rod to move upward when it moves upward, and the moving rod drives the rotating rod to rotate when it moves upward. As the rotating rod rotates, the rotating rod drives the second connecting rod to move toward the side close to the pull rod, thereby pushing the pull rod to make it move. At the same time, the setting of the baffle can block the gap between the two buffer plates, so as to prevent the pull rod from being stuck between the two buffer plates to a certain extent.

[0015] Optionally, the lifting and transporting assembly includes a driving motor, a driving rod, a driving pulley arranged at intervals above and below, a driving belt and a protrusion, the driving motor is mounted on a frame, the driving rod is connected to a driving shaft of the driving motor, the driving pulley located below is fixedly mounted on the driving rod, the driving belt is mounted on two driving pulleys, and the protrusions are fixedly connected to the driving belt at intervals.

[0016] By adopting the above technical solution, when the pull rod in the feed hopper needs to be conveyed, as the driving belt runs, the driving belt can drive the protrusion to move together, and the pull rod enters the groove between the two protrusions and moves upward with the driving belt. After the pull rod moves out of the feed hopper, it falls onto the conveyor belt and is finally transported to the next workstation for processing.

[0017] Optionally, a dial wheel is fixedly provided on the driving rod, and a sliding rod is slidably connected to the frame. When the dial wheel rotates, the sliding rod can be driven to move. A push block is fixedly connected to the side of the sliding rod away from the dial wheel, and a connecting block is fixedly connected to the lower surface of the moving block. When the push block moves, it can push the connecting block to move upward.

[0018] By adopting the above technical solution, when the moving block needs to be moved upward, the driving rod can drive the dial wheel to rotate when it rotates, and the dial wheel can abut against one end of the sliding rod when it rotates, and then the dial wheel pushes the sliding rod to move, and then the sliding rod drives the push block to move, and during the movement, the push block abuts against the connecting block and pushes the connecting block to move upward, so that the connecting block drives the moving block to move together.

[0019] Optionally, a return spring 1 is provided between the frame and the moving block.

[0020] By adopting the above technical solution, the return spring 1 can be compressed when the moving block moves upward. When the moving block needs to be reset, the moving block can be reset by the gravity of the moving block itself and the return spring 1, so as to continue the feeding work.

[0021] Optionally, a plurality of rollers are rotatably arranged on the push block.

[0022] By adopting the above technical solution, the setting of the roller can reduce the friction between the push block and the connecting block when the push block pushes the connecting block, which is beneficial to prolonging the service life of the device.

[0023] Optionally, a plurality of top plates are fixedly connected to the bottom of the buffer plate.

[0024] By adopting the above technical solution, the setting of the top plate can increase the range of the buffer plate pushing the pull rod, which is beneficial to the pushing of the pull rod.

[0025] Optionally, extension plates are fixedly connected to both sides of the moving block, support rods are fixedly connected to the opposite inner sides of the two extension plates, and the support rods are fixedly connected to the moving rods.

[0026] By adopting the above technical solution, the arrangement of the extension plate and the support rod makes it easy for the moving block to drive the moving rod to move together with it when the moving block moves.

[0027] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects:

[0028] 1. The setting of the limit plate allows a single tie rod to pass through, and during the process of lifting and transporting the tie rod, the single tie rod can be moved to the support block and transported, thereby reducing the probability of the tie rod falling during the lifting process;

[0029] 2. The buffer plate can buffer the moving tie rod, thereby protecting the tie rod, and can drive the buffer plate to move during the process of loading the tie rod, thereby adjusting the position of the tie rod, which is convenient for unloading the tie rod;

[0030] 3. When the moving block drives the pull rod to move upward, it can drive the connecting plate to move, so that the next pull rod to be transported can be moved, so as to facilitate the feeding of the pull rod during the next transportation process, and at the same time, it can prevent the occurrence of material blockage to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of the drive motor and the drive rod assembly according to an embodiment of the present invention;

[0033] Figure 3 for Figure 2 A partial enlarged view of the middle area A;

[0034] Figure 4 It is a schematic structural diagram of the assembly of a buffer plate and a connecting rod according to an embodiment of the present invention;

[0035] Figure 5 for Figure 4 A partial enlarged view of the middle area B;

[0036] Figure 6 This is a schematic structural diagram of the assembly of the moving block and the return spring 1 according to an embodiment of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the assembly of the moving block and the moving rod according to an embodiment of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the assembly of the moving block and the connecting plate 2 according to an embodiment of the present invention.

[0039] Description of the accompanying drawings: 1, frame; 11, feed hopper; 111, movable hole; 12, conveyor belt; 13, limit plate; 14, moving block; 141, connecting plate 1; 142, connecting plate 2; 143, return spring 1; 144, extension plate; 145, support rod; 15, support block; 16, telescopic rod; 17, push plate; 18, push spring; 2, lifting and transporting assembly; 21, driving motor; 22, driving rod; 23, Driving pulley; 24, driving belt; 25, bump; 3, buffer plate; 31, connecting rod 1; 32, shock-absorbing spring; 33, top plate; 4, adjustment assembly; 41, moving rod; 42, rotating rod; 43, connecting rod 2; 44, baffle; 5, dial wheel; 51, sliding rod; 511, reset spring 2; 52, push block; 521, roller; 522, push inclined surface; 53, connecting block; 531, push inclined surface; 54, dial rod. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 8 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0041] Reference Figure 1 , Figure 2 and Figure 3A rod automatic feeding mechanism includes a frame 1, a feed hopper 11, a lifting and transporting assembly 2 and a conveyor belt 12. The frame 1 is placed on a horizontal plane, the feed hopper 11 is fixedly connected to the right side of the frame 1, and the bottom wall of the feed hopper 11 is tilted downward from right to left to facilitate the collection of the rods in the feed hopper 11 and facilitate the transportation of the lifting and transporting assembly 2. The lifting and transporting assembly 2 is arranged between the feed hopper 11 and the conveyor belt 12, and can transport the rods in the feed hopper 11 to the conveyor belt 12. 2 comprises a driving motor 21, a driving rod 22, a driving pulley 23 arranged at intervals in the upper and lower parts, a driving belt 24 and a protrusion 25, the driving motor 21 is installed on the frame 1, the driving rod 22 is connected to the driving shaft of the driving motor 21, the driving pulley 23 located at the lower part is fixedly sleeved on the driving rod 22, the driving belt 24 is sleeved on the two driving pulleys 23, the protrusion 25 is fixedly connected to the driving belt 24 at intervals, and the conveyor belt 12 can convey the lifting and transporting assembly 2 to the pull rod at the highest point to convey it to the next station.

[0042] Reference Figure 4 , Figure 5 , Figure 6 and Figure 8 A movable hole 111 is provided on the left side of the bottom wall of the feed hopper 11, and a limit plate 13 fixedly connected to the inner wall of the feed hopper 11 is provided above the movable hole 111. The limit plate 13 can limit the height so that a single pull rod can enter under the limit plate 13. A moving block 14 is slidably mounted on the frame 1, and a return spring 143 is fixedly connected between the moving block 14 and the frame 1. A support block 15 fixedly connected to the top of the bottom wall of the feed hopper 11 is provided on the left side of the movable hole 111. A through hole for the protrusion 25 to pass through is provided on the support block 15. The upper surface of the moving block 14 is on the same plane as the bottom wall of the feed hopper 11. After the moving block 14 moves upward, the moving block 14 can be moved upward. The upper surface of the limit plate 13 is located on the same plane as the upper surface of the support block 15. A telescopic rod 16 is provided on the limit plate 13 to slide upward from left to right. The end of the telescopic rod 16 close to the moving block 14 is fixedly connected with a push plate 17. A push spring 18 mounted on the telescopic rod 16 is fixedly connected between the push plate 17 and the limit plate 13. A connecting plate 141 hinged to the bottom wall of the feed hopper 11 is provided on the right side wall of the movable hole 111. A connecting plate 2 142 is hinged on one side of the moving block 14 close to the connecting plate 141. The connecting plate 141 is slidably connected to the connecting plate 2 142, so that when the moving block 14 moves upward, it can drive the connecting plate 2 142 to move, thereby reducing the probability of blockage.

[0043] Reference Figure 3 , Figure 4 and Figure 6The driving rod 22 is fixedly sleeved with a dial wheel 5, and a plurality of dial rods 54 are fixedly connected to the circumferential side walls of the dial wheel 5 at intervals. The frame 1 is slidably equipped with a sliding rod 51 near the dial rod 54. The dial wheel 5 can drive the dial rod 54 to abut against the sliding rod 51 and push the sliding rod 51 to slide. A return spring 2 511 is sleeved on the sliding rod 51 for returning the sliding rod 51 to its original position. The sliding rod 51 is fixedly connected to a push block 52 at one end of the sliding rod 51 away from the dial rod 54. The push block 52 is provided with a push inclined surface 522 extending downward from left to right. A plurality of rollers 521 are rotatably arranged at the push inclined surface 522. The lower surface of the moving block 14 is fixedly connected with a connecting block 53. The connecting block 53 is provided with a push inclined surface 531 extending downward from left to right on one side close to the push block 52, so that the push block 52 can abut against the push inclined surface 531 after moving, and push the connecting block 53 to move upward.

[0044] When it is necessary to convey only one pull rod between the two protrusions 25, the pull rod slides along the bottom wall of the feed hopper 11. Due to the setting of the limit plate 13, the single pull rod moves to the top of the moving block 14. When the moving block 14 moves upward, it drives the pull rod upward. When the pull rod moves upward, it can abut against the push plate 17. Under the push of the push plate 17 and the action of its own gravity, the pull rod slides onto the support block 15. When the protrusion 25 rotates to the support block 15, it can convey the pull rod on the support block 15, so that only one pull rod can be conveyed between the two protrusions 25 at a time, thereby reducing the probability of the pull rod falling during the conveying process, which is beneficial to protecting the surface quality of the pull rod.

[0045] Reference Figure 4 A plurality of buffer plates 3 are provided in the feed hopper 11, and the plurality of buffer plates 3 are arranged parallel to each other. In the present embodiment, the lengths of the plurality of buffer plates 3 gradually increase from bottom to top, so as to facilitate the unloading of the pull rod. A top plate 33 is fixedly connected to the lower surface of each buffer plate 3, and the top plate 33 can increase the range of the buffer plate 3, so as to better buffer the pull rod. A connecting rod 31 is slidably connected to the left side of each buffer plate 3, and a shock-absorbing spring 32 is sleeved on the connecting rod 31 so as to contact the buffer plate 3 during the sliding process of the pull rod, thereby buffering the pull rod and reducing the impact between the pull rod and the feed hopper 11, so as to protect the surface quality of the pull rod.

[0046] Reference Figure 1 , Figure 4 and Figure 7An adjustment component 4 is provided on one side of the buffer plate 3. The adjustment component 4 is used to adjust the position of the pull rod in the feed hopper 11. On the one hand, it is convenient for the unloading of the pull rod, and on the other hand, it prevents the blockage of the pull rod to a certain extent. The adjustment assembly 4 includes a moving rod 41, a rotating rod 42, a connecting rod 43 and a baffle 44. A support rod 145 is fixedly connected to the side wall of the moving rod 41. An end of the support rod 145 away from the moving rod 41 is fixedly connected to an extension plate 144. The extension plate 144 is fixedly connected to the moving block 14. The moving rod 41 is arranged perpendicular to the bottom wall of the feed hopper 11. When the moving block 14 moves upward, it can drive the moving rod 41 to move therewith. One end of the rotating rod 42 is hinged to the side wall of the moving rod 41, and the other end of the rotating rod 42 is hinged to the connecting rod 43. The connecting rod 43 is fixedly connected to the end of the connecting rod 1 31 away from the buffer plate 3. The baffle 44 is fixedly connected to the inner wall of the feed hopper 11. The baffle 44 is arranged between two adjacent buffer plates 3 to prevent the pull rod from being stuck between the two buffer plates 3. The baffle 44 is arranged parallel to the bottom wall of the feed hopper 11 and the moving rod 41 passes through the baffle 44.

[0047] The implementation principle of an automatic pull rod feeding device in an embodiment of the present invention is: first, the pull rod is conveyed into the feed hopper 11, and then the pull rod starts to slide along the bottom wall of the feed hopper 11. When the pull rod slides and contacts the buffer plate 3, the pull rod is buffered and shock-absorbing. Due to the setting of the limit plate 13, a single pull rod enters under the limit plate 13 and moves to the movable plate.

[0048] Start the driving motor 21 to drive the driving belt 24 to run, and make the protrusion 25 move with the driving belt 24. When the driving motor 21 drives the driving rod 22 to rotate, it can drive the dial wheel 5 to rotate. The rotation of the dial wheel 5 drives the dial rod 54 to abut against the sliding rod 51 and push the sliding rod 51 to move. Then the sliding rod 51 drives the push block 52 to push the connecting block 53 to move upward. The connecting block 53 drives the moving block 14 to move upward. Then the moving block 14 pushes the pull rod above it to move upward. During the movement of the pull rod, it abuts against the push plate 17 and pushes the push plate 17 to move. Under the action of the push spring 18, the push plate 17 pushes the pull rod to move to the support block 15. As the protrusion 25 moves, the protrusion 25 pushes the pull rod to start conveying. Finally, the pull rods enter between the two protrusions 25 one by one, and then the pull rods are conveyed to the conveyor belt 12 for conveying.

[0049] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic rod feeding mechanism, comprising a frame, a feed hopper fixedly connected to the frame, a conveyor belt for conveying the rods to the next station, and a lifting and transporting assembly for conveying the rods in the feed hopper to the conveyor belt, characterized in that: The bottom wall of the feed hopper is arranged obliquely, a limit plate is fixedly connected to the inner wall of the feed hopper, a moving block is slidably connected to the bottom of the feed hopper, a support block is fixedly connected to the leftmost side of the bottom wall of the feed hopper, a telescopic rod is slidably arranged on the limit plate, a push plate is fixedly connected to one end of the telescopic rod close to the moving block, and a push spring sleeved on the telescopic rod is arranged between the push plate and the limit plate; A connecting plate 1 is hingedly connected to one side of the bottom wall of the feed hopper close to the moving block, and a connecting plate 2 is hingedly connected to one side of the moving block close to the connecting plate 1, and the connecting plate 1 is slidably connected to the connecting plate 2; The lifting and transporting assembly comprises a driving motor, a driving rod, driving pulleys arranged at intervals up and down, a driving belt and a convex block, the driving motor is mounted on the frame, the driving rod is connected to the driving shaft of the driving motor, the driving pulley located below is fixedly sleeved on the driving rod, the driving belt is sleeved on two driving pulleys, and the convex blocks are fixedly connected to the driving belt at intervals; The driving rod is fixedly sleeved with a dial wheel, and the frame is slidably connected with a sliding rod. When the dial wheel rotates, the sliding rod can be driven to move. A push block is fixedly connected to the side of the sliding rod away from the dial wheel, and a connecting block is fixedly connected to the lower surface of the moving block. When the push block moves, it can push the connecting block to move upward.

2. The pull rod automatic feeding mechanism according to claim 1, characterized in that: A plurality of buffer plates are arranged in the feed hopper, and a connecting rod 1 is slidably connected to the left side of each buffer plate, and a shock absorbing spring is sleeved on the connecting rod 1.

3. The pull rod automatic feeding mechanism according to claim 2, characterized in that: An adjustment component is provided on one side of the buffer plate, and the adjustment component is used to adjust the position of the pull rod in the feed hopper.

4. The pull rod automatic feeding mechanism according to claim 3, characterized in that: The adjustment assembly includes a moving rod, a rotating rod, a second connecting rod and a baffle, the moving rod is connected to the moving plate, one end of the rotating rod is hinged to the moving rod, the other end of the rotating rod is hinged to the second connecting rod, the rotating rod and the second connecting rod are arranged perpendicular to each other, one end of the second connecting rod away from the moving rod is connected to the first connecting rod, the baffle is fixedly connected to the inner wall of the feed hopper, and the moving rod is arranged through the baffle.

5. The pull rod automatic feeding mechanism according to claim 1, characterized in that: A return spring 1 is arranged between the frame and the moving block.

6. The pull rod automatic feeding mechanism according to claim 1, characterized in that: A plurality of rollers are rotatably arranged on the push block.

7. The pull rod automatic feeding mechanism according to claim 2, characterized in that: A plurality of top plates are fixedly connected to the bottom of the buffer plate.

8. The pull rod automatic feeding mechanism according to claim 4, characterized in that: Extension plates are fixedly connected to both sides of the moving block, and support rods are fixedly connected to the opposite inner sides of the two extension plates, and the support rods are fixedly connected to the moving rods.

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