Automatic feeding device of heating furnace

Abstract

The invention relates to the field of metal bar heating equipment, in particular to an automatic feeding device of a heating furnace, which comprises a material rack, a material distributor and a material moving device, the material rack comprises a rack and at least two rectangular material bearing plates, each material bearing plate is used for placing a layer of bars, the material rack can be used for placing multiple layers of bars distributed along the Z-axis direction, and the material moving device is arranged on the rack. The material distributing device comprises a plurality of material distributing tables and a first Z-axis driver, the first Z-axis driver is used for driving the material distributing tables to move in the Z-axis direction, each material distributing table takes one bar from each layer of bars, then the multiple bars arranged side by side in the Z-axis direction are lifted to the position above the material frame, and the material moving device comprises a first clamping jaw and a second clamping jaw. The first Y-axis driver and the second Y-axis driver are used for driving the first Y-axis driver and the second Y-axis driver to move in the Y-axis direction, the material moving device can grab the multiple bars lifted by the distributor at a time and throw the multiple bars to a feeding port of the heating furnace one by one step, and therefore the problem that a traditional mechanical arm can only move one bar at a time is solved.

Description

Technical Field

[0001] The invention relates to the field of metal bar heating equipment, and in particular to an automatic feeding device for a heating furnace. Background Art

[0002] When heating the bar material, it is necessary to place the bar material in a chain plate heating furnace. However, the temperature of the feed port of the chain plate heating furnace is usually high, and the open feed port radiates heat from the feed port to the outside, causing the surrounding temperature to become high, affecting the operator's feeding of the bar material, and in severe cases endangering the operator's health.

[0003] To this end, people have designed an automated robot to put rods into the heating furnace. The operator can replenish the rods in the robot's material-retrieving area far away from the heating furnace, and then the robot can put the rods into the heating furnace, thereby reducing safety hazards.

[0004] However, the existing manipulator can only move one bar at a time, and the working efficiency is low. Summary of the invention

[0005] The object of the present invention is to provide an automatic feeding device for a heating furnace, so as to solve the problem that the existing manipulator can only move one bar at a time and the feeding efficiency is low.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A heating furnace automatic loading device comprises a material rack, a material divider and a material moving device, wherein the material rack is used to place multiple layers of bar materials distributed along the Z-axis direction, the material divider is used to move along the Z-axis direction, take one bar material from each layer of bar materials, and then lift multiple bar materials arranged in parallel along the Z-axis direction to the top of the material rack, the material moving device is used to grasp multiple bar materials lifted by the material divider at one time, and drop multiple bar materials one by one to the feed port of the heating furnace in steps, the X-axis and the Y-axis are horizontal and perpendicular to each other, and the Z-axis is vertical; the material moving device comprises a first clamp and a second clamp that are relatively and symmetrically arranged, and a first Y-axis driver and a second Y-axis driver that drive the first clamp and the second clamp to perform movement along the Y-axis direction, the first clamp comprises a third material blocking plate with side walls extending along the X-axis and Z-axis directions, and a plurality of supporting plates fixedly connected to the third material blocking plate and sequentially arranged from top to bottom along the Z-axis, and the length of the supporting plates gradually decreases from top to bottom.

[0007] Furthermore, the material rack includes a frame and at least two rectangular material receiving plates, which are fixedly connected to the frame. Two opposite sides of the material receiving plates parallel to the X-axis are horizontally arranged, and one side is higher than the other side, so that the top wall of the material receiving plate forms a first slope extending along the Y-axis direction. The rod is placed on the material receiving plate, and the axis of the rod is arranged along the X-axis direction. The angle of the first slope allows the rod placed on the material receiving plate to move from the high point of the first slope to the low point of the first slope by its own gravity.

[0008] Furthermore, the material rack also includes a first material blocking plate arranged at the bottom edge of each of the material receiving plates along the Y-axis direction, and the first material blocking plate has a side wall extending along the X-axis and Z-axis directions on the side facing the material receiving plate. When a plurality of rods are arranged on the first slope along the inclined direction of the first slope, the first material blocking plate is used to block the rod located at the bottom of the first slope, so that the rod and subsequent rods stop moving.

[0009] Furthermore, the bottom edge of each of the material receiving plates along the Y-axis direction is located in the same vertical plane, and the length of each of the material receiving plates along the Y-axis direction is different, so that the top edge of each layer of the material receiving plates along the Y-axis direction is not blocked by the material receiving plates of the previous layer; The top edge of each material receiving plate along the Y-axis direction is connected to a material unloading plate, and the angle between the material unloading plate and the material receiving plate is an obtuse angle, and each material unloading plate is parallel to each other, so that the top wall of the material unloading plate forms a second slope surface extending along the Y-axis direction and opposite to the first slope surface, and the angle of the second slope surface allows the bar placed on the material unloading plate to move from the high point of the second slope surface to the low point of the second slope surface by its own gravity, and then naturally move to the high point of the first slope surface; Two material baffle plates are also arranged on both sides of the top wall of the material receiving plate along the X-axis direction. Each of the material baffle plates is perpendicular to the material receiving plate and has side walls extending along the Y-axis and Z-axis directions. The two material baffle plates are respectively used to block the two ends of the rod. In the process of the rod rolling downward along the first slope, the rod is restricted in the middle by the two material baffle plates.

[0010] Furthermore, the material divider includes a plurality of material dividing tables and a first Z-axis driver, the number of the material dividing tables is the same as the number of the material receiving plates, each of the material dividing tables is respectively arranged on the side of the bottom edge of the material receiving plate along the Y-axis direction, the first Z-axis driver is fixedly connected to the material rack, the actuator of the first Z-axis driver is transmission-connected to each of the material dividing tables, and the material receiving plate is provided with an opening for the material dividing table and the bar material to pass through along the Z-axis direction, so that the first Z-axis driver can drive each of the material dividing tables to move along the Z-axis and repeatedly pass through the material receiving plate, thereby lifting the bar material located at the bottom edge of the material receiving plate along the Y-axis direction to above the material rack.

[0011] Furthermore, the material dividing table includes a first material dividing plate and a second material dividing plate, the first material dividing plate is parallel to the first material blocking plate and is located in the same plane, the second material dividing plate is parallel to the material receiving plate and is located in the same plane, the first material dividing plate and the second material dividing plate form a positioning groove, and the positioning groove extends along the X-axis direction. The rod material can roll into the interior of the positioning groove along the material receiving plate and be positioned.

[0012] Furthermore, the actuator of the first Z-axis drive is fixedly connected with a second material blocking plate, and the second material blocking plate is arranged on the side of the second material dividing plate facing away from the first material dividing plate, and the second material blocking plate is parallel to the first material dividing plate. During the descending process of the material dividing platform, the second material blocking plate always blocks the subsequent rods and the material dividing platform until all the material dividing platforms are descended to the lowest position, and then the second material blocking plate stops blocking the movement of the rods, so that each layer of rods can roll along the material supporting plate into the corresponding material dividing platform.

[0013] Furthermore, each of the material distribution tables is connected to a guide rod, the actuator of the first Z-axis driver is connected to a slide rail, the guide rod is connected to the slide rail, the guide rod can move along the Z-axis direction, and the material distribution table is located directly above the actuator of the first Z-axis driver. When the actuator of the first Z-axis driver rises and contacts the bottom of the material distribution table, the material distribution table rises synchronously with the actuator of the first Z-axis driver.

[0014] Furthermore, among the multiple material distribution platforms, the material distribution platform located at the highest point is fixedly connected to the guide rod by bolts, and the other material distribution platforms are provided with guide holes that slide with the guide rod, so that the material distribution platform can move relative to the guide rod along the Z-axis direction, and each of the material distribution platforms is connected to a flange extending along the Y-axis direction, and the material rack is provided with a limit plate extending toward the flange on the side of each first material blocking plate, and the length of each flange is different, and the position of each limit plate is different, so that after the material distribution platform naturally descends, each of the material distribution platforms can abut against one of the limit plates through its own flange, so that each of the material distribution platforms stops on the side of its corresponding first material blocking plate.

[0015] Furthermore, one end of the material supporting plate is fixedly connected to the third material blocking plate, and the other end of the material supporting plate faces another third material blocking plate. The number of the material supporting plates is the same as the number of the material dividing tables.

[0016] Compared with the prior art, this application has the following beneficial effects: Provided is an automatic loading device for a heating furnace, wherein a material rack can store multiple layers of bar materials along the Z-axis direction, a material distributor can take one bar material from each layer of bar materials, and then lift multiple bar materials to the top of the material rack, a material moving device can grasp multiple bar materials lifted by the material distributor at one time, and drop multiple bar materials one by one to the feeding port of the heating furnace in steps, thereby solving the problem that a traditional manipulator can only move one bar material at a time and has a low loading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 A three-dimensional diagram of an embodiment of the present invention; Figure 2 A top view of a material rack according to an embodiment of the present invention; Figure 3 for Figure 2 Cross-sectional view in the AA direction; Figure 4 for Figure 3 A local enlarged view of point B; Figure 5 It is an assembly diagram of a material distribution table according to an embodiment of the present invention; Figure 6 A three-dimensional diagram of a manipulator according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the first working condition (before material division) of an embodiment of the present invention; Figure 8 It is a schematic diagram of the second working condition (material splitting in progress) of an embodiment of the present invention; Fig. 9 It is a schematic diagram of the third working condition (material splitting completed) of an embodiment of the present invention; Fig.10 It is a schematic diagram of the fourth working condition (material taking in progress) of an embodiment of the present invention; Fig.11 It is a schematic diagram of the fifth working condition (material taking is completed) of the embodiment of the present invention; Fig.12 is a schematic diagram of the sixth working condition (material unloading in progress) of an embodiment of the present invention; The numbers in the figure represent the following: 1-bar material; 2-material rack; 21-frame; 211-limiting plate; 22-material receiving plate; 221-opening; 23-first material blocking plate; 24-material blocking plate; 241-long hole; 25-material discharge plate; 3-material divider; 31-material dividing table; 311-first material dividing plate; 312-second material dividing plate; 313-guide hole; 314-flange; 32-first Z-axis driver; 321-slide rail; 33-second material blocking plate; 34-guide rod; 4-material moving device; 41-first Y-axis driver; 42-second Y-axis driver; 43-first clamping jaw; 431-third material blocking plate; 432-material supporting plate; 44-second clamping jaw; 45-X-axis driver. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Technical background overview: Herein, the X-axis and the Y-axis are horizontal directions, the X-axis and the Y-axis are perpendicular, and the Z-axis is a vertical direction.

[0021] The temperature of the feed port of the chain plate type heating furnace is relatively high, which affects the operator's loading of the rods 1. In order to solve this safety hazard, the present invention provides an automatic loading device for the heating furnace, which can not only automatically load the rods, so that the operator is away from the feed port of the chain plate type heating furnace and reduce safety hazards, but also can put multiple rods 1 at a time to improve the loading efficiency of the rods 1.

[0022] Overview of the main structure of the automatic feeding device of the heating furnace: refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The automatic feeding device of the heating furnace includes a material rack 2, a divider 3 and a material moving device 4. The material rack 2 is used to place multiple layers of bar materials 1 distributed along the Z-axis direction. The divider 3 is used to move along the Z-axis direction, take one bar material 1 from each layer of bar materials 1, and lift multiple bar materials 1 to the top of the material rack 2. The material moving device 4 is used to grasp multiple bar materials 1 lifted by the divider 3 at one time, and put the multiple bar materials 1 into the feeding port of the heating furnace one by one in steps, thereby reducing the steps of taking and moving materials without changing the feeding frequency.

[0023] Regarding the placement and automatic supply of bar 1: refer to Figure 1 , Figure 2 The material rack 2 includes a frame 21 and at least two rectangular receiving plates 22. The receiving plates 22 are fixedly connected to the frame 21. Two opposite sides of the receiving plates 22 parallel to the X-axis are horizontally arranged, and one side is higher than the other side, so that the top wall of the receiving plate 22 forms a first slope extending along the Y-axis direction. The bar 1 is placed on the receiving plate 22, and the axis of the bar 1 is arranged along the X-axis direction. The angle of the first slope allows the bar 1 placed on the receiving plate 22 to move from the high point of the first slope to the low point of the first slope by its own gravity.

[0024] refer to Figure 3 and Figure 4 The material rack 2 also includes a first material blocking plate 23 arranged on the bottom edge of each material receiving plate 22 along the Y-axis direction. The first material blocking plate 23 has a side wall extending along the X-axis and Z-axis directions on the side facing the material receiving plate 22. When a plurality of rods 1 are arranged on the first slope along the inclined direction of the first slope, the first material blocking plate 23 is used to block the rod 1 located at the bottom of the first slope, so that the rod 1 and subsequent rods 1 stop moving.

[0025] A plurality of material receiving plates 22 and a plurality of first material blocking plates 23 are arranged in parallel along the Z-axis direction, thereby forming a multi-layer space for storing the bar materials 1 on the material rack 2 .

[0026] Instructions for adjusting rack 2 after modifying the diameter and axial length of bar 1: refer to Figure 2 The material rack 2 also includes two material blocking plates 24 arranged on both sides of the top wall of the material receiving plate 22 along the X-axis direction. Each material blocking plate 24 is perpendicular to the material receiving plate 22 and has side walls extending along the Y-axis and Z-axis directions. The two material blocking plates 24 are respectively used to block the two ends of the bar 1. When the bar 1 rolls downward along the first slope, the bar 1 is restricted in the middle by the two material blocking plates 24, thereby guiding the bar 1 to move along the target path.

[0027] Furthermore, the baffle plate 24 is provided with a long hole 241 which passes vertically through the baffle plate 24, and the length direction of the long hole 241 is parallel to the X-axis. The baffle plate 24 is connected to the receiving plate 22 by bolts passing through the long hole 241, so that each baffle plate 24 can move a certain distance along the X-axis direction on the receiving plate 22, thereby making the distance between the two baffle plates 24 adjustable. This design is used to enable the distance between the baffle plates 24 to adapt to the change of the axial length of the bar 1.

[0028] Furthermore, the first material blocking plate 23 can also be moved along the Y-axis direction through the same principle (such as using bolts to pass through the long holes 241 that run through the first material blocking plate 23 to connect the first material blocking plate 23 and the frame 21), so that the distance between the first material blocking plate 23 and the material receiving plate 22 can be adjusted. This design is used to enable the distance between the first material blocking plate 23 and the material receiving plate 22 to adapt to changes in the diameter of the rod 1.

[0029] Instructions for adding bar 1 to rack 2: In order to facilitate the operator to replenish the rods 1 into the material rack 2, the bottom edge of each material receiving plate 22 along the Y-axis direction is located in the same vertical plane, and the length of each material receiving plate 22 along the Y-axis direction is different, so that the top edge of each layer of material receiving plates 22 along the Y-axis direction is not blocked by the material receiving plates 22 of the upper layer.

[0030] Furthermore, each material receiving plate 22 is connected to a discharge plate 25 at the top edge along the Y-axis direction, and the angle between the discharge plate 25 and the material receiving plate 22 is an obtuse angle. Each discharge plate 25 is parallel to each other, so that the top wall of the discharge plate 25 forms a second slope extending along the Y-axis direction and opposite to the first slope. The angle of the second slope allows the bar 1 placed on the discharge plate 25 to move from the high point of the second slope to the low point of the second slope by its own gravity, and then naturally move to the high point of the first slope.

[0031] The operator only needs to place the bar 1 to the highest point of the material placing plate 25 , and the bar 1 will roll to the lowest point of the material receiving plate 22 by itself.

[0032] To sum up, the material rack 2 can place a large number of rods 1 in the multi-layer storage space, and the first material blocking plate 23 and the material baffle plate 24 of the material rack 2 can be adjusted to adapt to the changes in the diameter and length of the rods 1. When the rods 1 at the lowest point of each layer of rods 1 (the material taking position of the material moving device 4) are taken away, the remaining rods 1 can move toward the lowest point by their own gravity, so that the divider 3 can always lift the rods 1 in a fixed position.

[0033] Instructions for automatically removing bar 1 from rack 2: On the other hand, in order to achieve the purpose of lifting multiple bars 1 at a time by the distributor 3, refer to Figure 4 , Figure 5 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 .

[0034] The material divider 3 includes multiple material dividing tables 31 and a first Z-axis driver 32. The number of the material dividing tables 31 is the same as the number of the material receiving plates 22. Each material dividing table 31 is respectively arranged on the side of the bottom edge of a material receiving plate 22 along the Y-axis direction. The first Z-axis driver 32 is fixedly connected to the material rack 2. The actuator of the first Z-axis driver 32 is transmission-connected to each material dividing table 31, so that the first Z-axis driver 32 can drive each material dividing table 31 to move along the Z-axis and repeatedly pass through the material receiving plate 22.

[0035] It should be emphasized that an opening 221 is provided on the receiving plate 22 for the material dividing table 31 and the rod 1 to pass through along the Z-axis direction. Since the rod 1 needs to pass through the receiving plate 22 along the Z-axis direction, a gap is left between the receiving plate 22 and the first material blocking plate 23 for a rod 1 to pass through. The material dividing table 31 prevents the rod 1 from falling from here. Therefore, the material dividing table 31 actually replaces a part of the structure of the material receiving plate 22 close to the first material blocking plate 23.

[0036] The working principle of distributor 3 is: Step 1. The first Z-axis driver 32 drives each material distribution table 31 to move upward. Each material distribution table 31 supports a rod 1 under its corresponding material receiving plate 22 and lifts the rod 1 to the top of the material receiving plate 22 to separate the rod 1 from other rods 1, thereby facilitating the material removal of the material transfer device 4.

[0037] Step 2: The first Z-axis driver 32 drives the material distribution table 31 to move downward until each material distribution table 31 drops below its corresponding material receiving plate 22 , and then the subsequent bar material 1 rolls downward along the first slope into each material distribution table 31 .

[0038] Structural description of the material distribution table 31: refer to Figure 5 The material dividing platform 31 includes a first material dividing plate 311 and a second material dividing plate 312. The first material dividing plate 311 is parallel to the first material blocking plate 23 and is located in the same plane. The second material dividing plate 312 is parallel to the material receiving plate 22 and is located in the same plane. The first material dividing plate 311 and the second material dividing plate 312 form a positioning groove, and the positioning groove extends along the X-axis direction. The bar 1 can roll into the interior of the positioning groove along the material receiving plate 22 and be positioned.

[0039] refer to Fig. 9 , Fig.10 , Fig.11 When multiple rods 1 are lifted to the top of the material rack 2 by multiple dividing platforms 31, an opening 221 for the rods 1 to enter and exit is formed on the side of the first dividing plate 311 away from the second dividing plate 312, and the material moving device 4 grabs the two ends of the rod 1 from the two ends of the first dividing plate 311, and then moves the rod 1 along the Y-axis direction, so that the rod 1 leaves the dividing platform 31 from the opening 221.

[0040] Supplementary explanation on the material distribution table 31: After the material distribution platform 31 rises, the bar material 1 can roll downward along the material receiving plate 22 and then fall below the material rack 2 from the opening 221 between the material receiving plate 22 and the first material blocking plate 23 .

[0041] In order to solve this problem, the actuator of the first Z-axis driver 32 is fixedly connected to the second material blocking plate 33, and the second material blocking plate 33 is arranged on the side of the second material dividing plate 312 facing away from the first material dividing plate 311, and the second material blocking plate 33 is parallel to the first material dividing plate 311. During the descending process of the dividing platform 31, the second material blocking plate 33 always blocks the subsequent rods 1 and the dividing platform 31 until all the dividing platforms 31 are descended to the lowest position, and then the second material blocking plate 33 stops blocking the movement of the rods 1, so that each layer of rods 1 can roll into its corresponding dividing platform 31 along the supporting plate 22.

[0042] Further additional explanation on the material distribution table 31: The design of the second material blocking plate 33 creates new problems. Fig.10 Since the first material dividing plate 311 , the second material dividing plate 312 and the second material blocking plate 33 surround the outer circumference of the bar 1 , the bar 1 cannot move in directions other than the axial direction after being grasped by the material moving device 4 .

[0043] In order to solve this problem, in this embodiment, the material distribution table 31 is not fixedly connected to the actuator of the first Z-axis driver 32, but is slidably connected to the frame 21 or the actuator of the first Z-axis driver 32, and the material distribution table 31 is located directly above the actuator of the first Z-axis driver 32.

[0044] Specifically, refer to Figure 5 Each material distribution table 31 is connected to a guide rod 34, the execution part of the first Z-axis driver 32 is connected to a slide rail 321, the guide rod 34 is connected to the slide rail 321, and the guide rod 34 can move along the Z-axis direction.

[0045] refer to Figure 8 , Fig. 9 , Fig.10When the actuator of the first Z-axis driver 32 rises and contacts the bottom of the material distribution table 31 , the material distribution table 31 rises synchronously with the actuator of the first Z-axis driver 32 .

[0046] refer to Fig.10 , Fig.11 When the bar 1 is clamped by the material transfer device 4 and the actuator of the first Z-axis driver 32 descends, the material distribution table 31 can maintain its original position until the material transfer device 4 removes the bar 1. After the material distribution table 31 loses the support of the bar 1, it descends to its initial position under the action of gravity.

[0047] This design allows the material moving device 4 to move the bar 1 along the Y-axis direction after clamping the bar 1 and the actuator of the first Z-axis driver 32 descends, so as to separate the bar 1 from the material dividing table 31 .

[0048] Further additional explanation about the material distribution table 31: refer to Figure 4 , Figure 5 , Figure 7 The cam 31 is provided with a plurality of guide holes 313 that are slidably matched with the guide rod 34, so that the cam 31 can move relative to the guide rod 34 along the Z-axis direction. Each cam 31 is connected with a flange 314 that extends along the Y-axis direction, and the material rack 2 is provided with a limit plate 211 extending toward the flange 314 on the side of each first material blocking plate 23. The length of each flange 314 is different, and the position of each limit plate 211 is different. After the cam 31 naturally descends, each cam 31 is pressed against a limit plate 211 through its own flange 314, so that each cam 31 stops on the side of its corresponding first material blocking plate 23.

[0049] This design enables each material distribution table 31 to be placed in sequence along the Z-axis direction after being lifted, thereby reducing the distance of the bar 1 lifted by the material distribution table 31 in the Z-axis direction, and then reducing the length of the first clamp 43 and the second clamp 44 in the Z-axis direction. The ultimate goal is to reduce the falling distance of the bar 1 in the process of being placed from the material transfer device 4 to the heating furnace.

[0050] Structural description of the material transfer device 4: refer to Figure 6 , Figure 8 and Fig.12 The material moving device 4 includes a first Y-axis driver 41 , a second Y-axis driver 42 , a first clamp 43 and a second clamp 44 .

[0051] The first clamp 43 and the second clamp 44 are arranged opposite to each other and are respectively connected to the actuators of the first Y-axis driver 41 and the second Y-axis driver 42, so that they are respectively driven to perform movement along the Y-axis direction. On the one hand, the first clamp 43 and the second clamp 44 can approach or move away from each other, so as to perform the action of grabbing or releasing the bar 1. On the other hand, the first clamp 43 and the second clamp 44 can move in the same direction, so as to perform the action of moving the bar 1 along the Y-axis direction to separate it from the dividing table 31.

[0052] The first clamp 43 includes a third material blocking plate 431 (extending along the X-axis and Z-axis directions) parallel to the first material blocking plate 23, and a plurality of supporting plates 432 arranged sequentially from top to bottom along the Z-axis, one end of the supporting plate 432 is fixedly connected to the third material blocking plate 431, and the other end of the supporting plate 432 faces another third material blocking plate 431. The number of supporting plates 432 is the same as the number of the material dividing table 31, and the length of the supporting plates 432 gradually decreases from top to bottom. The second clamp 44 is symmetrical with the first clamp 43.

[0053] refer to Fig. 9 , Fig.10 and Fig.11 Since a portion of the bar material 1 is located between the two dividing platforms 31 and cannot leave the dividing platforms 31 in the vertical direction, the bar material 1 leaves the dividing platform 31 by moving along the Y-axis direction.

[0054] refer to Fig.12 In the process that the first Y-axis driver 41 and the second Y-axis driver 42 drive the first clamp 43 and the second clamp 44 to move away from each other, the two supporting plates 432 near the bottom release the bar 1 first, and the two supporting plates 432 near the top release the bar 1 later, so that the first clamp 43 and the second clamp 44 can clamp multiple bar 1 at a time and release the bar 1 one by one.

[0055] Supplementary explanation on material transfer device 4: On the other hand, after the bar 1 is lifted by the material distribution platform 31, the material transfer device 4 needs to move the bar 1 to the feed port of the heating furnace. In order to reduce the footprint of the material rack 2 and at the same time extend the distance between the loading port of the material rack 2 and the feed port of the heating furnace as much as possible, Figure 1 The material moving device 4 also includes an X-axis driver 45, a first Y-axis driver 41 and a second Y-axis driver 42 are installed on the actuator of the X-axis driver 45, and the X-axis driver 45 is installed on a gantry (not shown in the figure) to drive the first Y-axis driver 41 and the second Y-axis driver 42 to move along the X-axis direction, so that the manipulator can move back and forth between the unloading port of the material rack 2 and the feeding port of the heating furnace.

[0056] The advantage of this design is that the distance between the loading port of the material rack 2 and the feeding port of the heating furnace is extended without increasing the floor space of the material rack 2.

[0057] In addition, the first material blocking plate 23, the material dividing table 31, the first clamp 43 and the second clamp 44 are staggered with each other in the X-axis direction, so that the movement of the material dividing table 31 along the Z-axis direction is not interfered by the first material blocking plate 23, the first clamp 43 and the second clamp 44, and the movement of the first clamp 43 and the second clamp 44 along the Y-axis direction is not interfered by the first material blocking plate 23 and the material dividing table 31.

[0058] Furthermore, since the change in the diameter of the rod 1 will change the axial height of the rod 1 lifted by the dividing table 31, in order to ensure that the center of the clamp can be aligned with the center of the rod 1, the material moving device 4 also includes a second Z-axis driver (not shown in the figure), and the second Z-axis driver is connected to the actuator of the X-axis driver 45, and the actuator of the second Z-axis driver is connected to the first Y-axis driver 41 and the second Y-axis driver 42. The second Z-axis driver is used to drive the first Y-axis driver 41 and the second Y-axis driver 42 to move along the Z-axis direction, thereby changing the initial position of the first clamp 43 and the second clamp 44. This design is used to enable the height of the first clamp 43 and the second clamp 44 to adapt to the change in the diameter of the rod 1.

[0059] The second Z-axis driver preferably adopts an electric screw slide.

[0060] Working principle of material transfer device 4: Step 1: Reference Figure 7 and Figure 8 The X-axis driver 45 moves the first Y-axis driver 41 and the second Y-axis driver 42 to the top of the material rack 2, and the first Y-axis driver 41 and the second Y-axis driver 42 respectively drive the first clamp 43 and the second clamp 44 to move away from each other along the Y-axis direction, leaving space for the distributor 3 to lift the bar 1. At this time, each distributor table 31 rests on its corresponding limit plate 211 through its own flange 314, and the second material blocking plate 33 is located below each material receiving plate 22.

[0061] Step 2: Reference Figure 8 , Fig. 9 The first Z-axis driver 32 lifts the material distribution table 31 upward, and each material distribution table 31 lifts a bar 1 from each material receiving plate 22, and lifts the bar 1 to the top of the material rack 2. During this process, the second material blocking plate 33 rises synchronously with the material distribution table 31 to prevent subsequent bar 1 from invading the bottom of the material distribution table 31.

[0062] Step 3: Reference Fig.10The first Y-axis driver 41 and the second Y-axis driver 42 respectively drive the first clamp 43 and the second clamp 44 to approach each other along the Y-axis direction, so that the bar 1 is clamped by the first clamp 43 and the second clamp 44. At this time, the first Z-axis driver 32 has driven the second material blocking plate 33 to descend, thereby leaving space for the bar 1 to move along the Y-axis on one side of the dividing table 31. At the same time, each dividing table 31 is connected to the actuator of the first Z-axis driver 32 through a guide rod 34. The lowest dividing table 31 descends synchronously with the actuator of the first Z-axis driver 32, and the other dividing tables 31 are supported by the bar 1 below and stay in their original positions.

[0063] Step 4: Reference Fig.11 The first Y-axis driver 41 and the second Y-axis driver 42 respectively drive the first clamp 43 and the second clamp 44 to move synchronously along the Y-axis direction, so that the bar 1 leaves the dividing table 31 from the side opening 221 of the dividing table 31. At this time, the dividing table 31 located above loses the support of the bar 1 below itself, and falls onto the corresponding limit plate 211 in turn based on its own gravity under the action of the guide rod 34 and the slide rail 321.

[0064] Step 5: Reference Fig.12 The X-axis driver 45 moves the first Y-axis driver 41 and the second Y-axis driver 42 to the loading port of the heating furnace. The first Y-axis driver 41 and the second Y-axis driver 42 respectively drive the first clamp 43 and the second clamp 44 to move away from each other along the Y-axis direction at a preset speed. Multiple bar materials 1 are put into the heating furnace in sequence at preset time intervals.

[0065] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An automatic feeding device for a heating furnace, characterized in that: The invention comprises a material rack (2), a material distributor (3) and a material transfer device (4), wherein the material rack (2) is used to place multiple layers of bar materials (1) distributed along the Z-axis direction, the material distributor (3) is used to move along the Z-axis direction, take one bar material (1) from each layer of bar materials (1), and then lift multiple bar materials (1) arranged in parallel along the Z-axis direction to the top of the material rack (2), and the material transfer device (4) is used to grasp multiple bar materials (1) lifted by the material distributor (3) at one time, and drop multiple bar materials (1) one by one into the feed port of the heating furnace in steps, wherein the X-axis and the Y-axis are horizontal and perpendicular to each other, and the Z-axis is In the vertical direction, the material moving device (4) comprises a first clamp (43) and a second clamp (44) which are arranged relatively and symmetrically, and a first Y-axis driver (41) and a second Y-axis driver (42) for driving the first clamp (43) and the second clamp (44) to move along the Y-axis direction, the first clamp (43) comprises a third material blocking plate (431) having side walls extending along the X-axis and Z-axis directions, and a plurality of material supporting plates (432) which are fixedly connected to the third material blocking plate (431) and are arranged sequentially from top to bottom along the Z-axis, and the length of the material supporting plates (432) gradually decreases from top to bottom.

2. The automatic feeding device for a heating furnace according to claim 1, characterized in that: The material rack (2) comprises a frame (21) and at least two rectangular material receiving plates (22), wherein the material receiving plates (22) are fixedly connected to the frame (21), and two opposite sides of the material receiving plates (22) parallel to the X-axis are arranged horizontally, and one side is higher than the other side, so that the top wall of the material receiving plate (22) forms a first slope extending along the Y-axis direction, and the bar (1) is placed on the material receiving plate (22), and the axis of the bar (1) is arranged along the X-axis direction. The angle of the first slope allows the bar (1) placed on the material receiving plate (22) to move from a high point of the first slope to a low point of the first slope by its own gravity.

3. The automatic feeding device for a heating furnace according to claim 2, characterized in that: The material rack (2) further comprises a first material blocking plate (23) arranged at the bottom edge of each of the material receiving plates (22) along the Y-axis direction, and the first material blocking plate (23) has a side wall extending along the X-axis and Z-axis directions on the side facing the material receiving plate (22). When a plurality of rods (1) are arranged on the first slope along the inclination direction of the first slope, the first material blocking plate (23) is used to block the rod (1) located at the bottom of the first slope, so that the rod (1) and subsequent rods (1) stop moving.

4. The automatic feeding device for a heating furnace according to claim 3, characterized in that: The bottom edge of each of the material receiving plates (22) along the Y-axis direction is located in the same vertical plane, and the length of each of the material receiving plates (22) along the Y-axis direction is different, so that the top edge of each layer of the material receiving plates (22) along the Y-axis direction is not blocked by the material receiving plates (22) of the previous layer; Each of the material receiving plates (22) is connected to a material discharging plate (25) at its top edge along the Y-axis direction, and the angle between the material discharging plate (25) and the material receiving plate (22) is an obtuse angle. Each of the material discharging plates (25) is parallel to each other, so that the top wall of the material discharging plate (25) forms a second slope extending along the Y-axis direction and opposite to the first slope. The angle of the second slope allows the bar (1) placed on the material discharging plate (25) to move from the high point of the second slope to the low point of the second slope by its own gravity, and then naturally move to the high point of the first slope. Two material blocking plates (24) are also arranged on both sides of the top wall of the material receiving plate (22) along the X-axis direction. Each of the material blocking plates (24) is perpendicular to the material receiving plate (22) and has side walls extending along the Y-axis and Z-axis directions. The two material blocking plates (24) are respectively used to block the two ends of the bar (1). When the bar (1) rolls downward along the first slope, the bar (1) is restricted in the middle by the two material blocking plates (24).

5. The automatic feeding device for a heating furnace according to claim 3 or 4, characterized in that: The material distributor (3) comprises a plurality of material distributors (31) and a first Z-axis driver (32). The number of the material distributors (31) is the same as the number of the material receiving plates (22). Each of the material distributors (31) is respectively arranged on the side of the bottom edge of a material receiving plate (22) along the Y-axis direction. The first Z-axis driver (32) is fixedly connected to the material rack (2). The actuator of the first Z-axis driver (32) is transmission-connected to each of the material distributors (31). The material receiving plate (22) is provided with an opening (221) through which the material distributors (31) and the bar material (1) can pass along the Z-axis direction, so that the first Z-axis driver (32) can drive each of the material distributors (31) to move along the Z-axis and repeatedly pass through the material receiving plate (22), thereby lifting the bar material (1) located at the bottom edge of the material receiving plate (22) along the Y-axis direction to the top of the material rack (2).

6. The automatic feeding device for a heating furnace according to claim 5, characterized in that: The material dividing platform (31) comprises a first material dividing plate (311) and a second material dividing plate (312), wherein the first material dividing plate (311) is parallel to the first material blocking plate (23) and is located in the same plane, and the second material dividing plate (312) is parallel to the material receiving plate (22) and is located in the same plane, and the first material dividing plate (311) and the second material dividing plate (312) form a positioning groove, and the positioning groove extends along the X-axis direction, and the bar material (1) can roll into the interior of the positioning groove along the material receiving plate (22) and be positioned.

7. The automatic feeding device for a heating furnace according to claim 6, characterized in that: The actuator of the first Z-axis driver (32) is fixedly connected to a second material blocking plate (33), and the second material blocking plate (33) is arranged on the side of the second material dividing plate (312) facing away from the first material dividing plate (311), and the second material blocking plate (33) is parallel to the first material dividing plate (311). During the descending process of the material dividing platform (31), the second material blocking plate (33) always blocks the subsequent rods (1) and the material dividing platform (31) until all the material dividing platforms (31) are descended to the lowest position, and then the second material blocking plate (33) stops blocking the movement of the rods (1), so that each layer of rods (1) can roll along the material receiving plate (22) into the corresponding material dividing platform (31).

8. The automatic feeding device for a heating furnace according to claim 7, characterized in that: Each of the material distribution tables (31) is connected to a guide rod (34), the actuator of the first Z-axis driver (32) is connected to a slide rail (321), the guide rod (34) is connected to the slide rail (321), the guide rod (34) can move along the Z-axis direction, and the material distribution table (31) is located directly above the actuator of the first Z-axis driver (32). When the actuator of the first Z-axis driver (32) rises and contacts the bottom of the material distribution table (31), the material distribution table (31) rises synchronously with the actuator of the first Z-axis driver (32).

9. The automatic feeding device for a heating furnace according to claim 8, characterized in that: Among the plurality of material distribution platforms (31), the material distribution platform (31) located at the highest position is fixedly connected to the guide rod (34) by means of bolts, and the other material distribution platforms (31) are provided with guide holes (313) that slidably cooperate with the guide rod (34), so that the material distribution platform (31) can move along the Z-axis direction relative to the guide rod (34), and each of the material distribution platforms (31) is connected to a flange (314) extending along the Y-axis direction, and the material rack (2) is arranged at each of the first and second material distribution platforms (31). A limiting plate (211) extending toward the flange (314) is arranged on the side of each material blocking plate (23), and each flange (314) has a different length and a different position of each limiting plate (211). Therefore, after the material distribution platform (31) naturally descends, each material distribution platform (31) abuts against a limiting plate (211) through its own flange (314), so that each material distribution platform (31) stops on the side of the first material blocking plate (23) corresponding to itself.

10. The automatic feeding device for a heating furnace according to claim 5, characterized in that: One end of the material supporting plate (432) is fixedly connected to the third material blocking plate (431), and the other end of the material supporting plate (432) faces another third material blocking plate (431). The number of the material supporting plates (432) is the same as the number of the material distribution platforms (31).

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