Automatic bar sorting device

Abstract

The utility model discloses an automatic bar arranging device which comprises a machine frame, a length sorting mechanism and a flush material arranging mechanism, the length sorting mechanism and the flush material arranging mechanism are arranged on the machine frame, and the length sorting mechanism comprises a first automatic centering mechanism, a sorting mechanism, a material pressing and blocking mechanism and a length detecting mechanism; and the flush material arranging mechanism comprises two sets of blanking limiting devices and two sets of second automatic centering mechanisms. Compared with the prior art, the automatic bar arranging device has the advantages that the automatic bar arranging device can be used in cooperation with a standard material frame and a cut-off machine, and full-automatic production of the feeding procedure of an automatic production line is achieved. The length sorting mechanism in the automatic bar sorting device has an automatic centering function, and bars can be automatically centered before being subjected to length sorting, so that the stability of length sorting is ensured.

Description

Technical Field

[0001] The utility model relates to an automatic bar sorting device. Background Art

[0002] For the materials required for the automated production line of elastic rail fastening products, round steel bars need to be cut and then placed in a standard rack. The cut round steel bars are then loaded by the standard rack to supply the automated production line. Since the cut round steel bars may occasionally have the situation of long and short materials, and after the cut round steel bars fall into the standard rack, their states are scattered, uneven on the left and right, and cannot be sorted manually, which cannot meet the requirement of the relevant automated mechanisms at the feeding station of the production line for the incoming material state to be neat. For the above reasons, the utility model designs an automated mechanism with the functions of both bar length sorting and end trimming, which is used to sort the cut bars by qualified length and trim the ends of the bars falling into the standard rack to ensure that the bars enter the feeding station of the automated production line in a neat state, so as to meet the requirements of automated production. Content of the Utility Model

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides an automatic bar sorting device.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an automatic bar sorting device, which includes a frame and a length sorting mechanism and an end trimming mechanism arranged on the frame, wherein:

[0005] The length sorting mechanism includes a first automatic centering mechanism, a sorting mechanism, a pressing and blocking mechanism, and a length detection mechanism, wherein: the first automatic centering mechanism includes a first substrate and a discharge plate support, a first swing arm support, and an actuator support arranged on the first substrate. A discharge plate and two groups of first guiding members are arranged on the discharge plate support. Two groups of first sliders are arranged on each group of first guiding members. Centering clamping plates are arranged on the slider seats of each group of first sliders. A first swing arm is arranged on the first swing arm support. A first centering pull rod is arranged between the slider seat of the first slider and the first swing arm support. A first centering actuator is arranged on the actuator support. The movable end of the first centering actuator is fixedly connected to the centering clamping plate on the same side; the pressing and blocking mechanism includes a second substrate and a blocking actuator and a pressing actuator arranged on the second substrate. A blocking plate higher than the discharge plate is installed at the movable end of the blocking actuator. A pressing plate is installed at the movable end of the pressing actuator; the sorting mechanism includes a sorting actuator, a blocking member, and a support plate arranged on the first substrate. The movable end of the sorting actuator is fixedly connected to the blocking member; the length detection mechanism includes a pushing actuator, a pushing plate, a detection member, a first detection probe, and a second detection probe installed on the second substrate. The pushing plate is connected to the movable end of the pushing actuator; the centering clamping plate is higher than the discharge plate;

[0006] The head trimming mechanism includes two sets of blanking limit devices and two sets of second automatic centering mechanisms. Each set of second automatic centering mechanisms includes a third substrate, a fixed seat, a second swing arm support, and a second centering actuator arranged on the third substrate. Two sets of second guiding members are arranged on the fixed seat, and two sets of second sliders are arranged on each set of second guiding members. The four sets of second sliders are respectively installed on two sets of second slider seats. A fixed baffle and two movable baffles are arranged on the second slider seats. A second centering pull rod is arranged between the second slider seats and the second swing arm support. A second swing arm is arranged on the second swing arm support. The movable end of the second centering actuator is fixedly connected to the second slider seat on the same side. The two sets of blanking limit devices are symmetrically and fixedly installed on the lower surfaces of the first substrate and the second substrate near the blanking port through fixing blocks. Blanking limit members are fastened on the fixing blocks. The blanking limit members are flexible members that hang freely, and the left-right relative distance is slightly larger than the diameter of the bar stock.

[0007] Further, a first slider seat hinge point is arranged on the slider seat of the first slider, and a first swing arm hinge point is arranged on the first swing arm support. The two ends of the first centering pull rod are respectively hinged to the first slider seat hinge point and the first swing arm hinge point.

[0008] Further, there is a height difference between the front and rear of the discharge plate support.

[0009] Further, the two sets of first guiding members respectively pass through the discharge plate support, are symmetrically fastened to the discharge plate support in parallel, and the two side ends are fastened through a first guiding member connecting plate to ensure that the distance between the first guiding members is consistent with the center distance of the discharge plate support.

[0010] Further, the height of the material blocking member is flush with the lower end surface of the discharge plate. The upper surface of the support plate is fixedly installed with the lower surface of the material blocking member and is centered and aligned with the material blocking member.

[0011] Further, the blanking actuator is installed on the cross beam through a support. The cross beam is installed across two brackets. The two brackets are installed on the second substrate and are located on both sides of the material blocking actuator. A height limiting member is installed across the two brackets.

[0012] Further, an installation frame is arranged on the second substrate, an adjusting member is arranged on the installation frame, the first detection probe is installed on the installation frame through a first probe support, the second detection probe is installed on the adjusting member through a second probe support, a rotating member is sleeved on the adjusting member, a detection member is arranged at the center of the upper end of the rotating member, and a counterweight member is arranged on one side of the rotating member.

[0013] Further, a second slider seat hinge point is arranged on the second slider seat, and a second swing arm hinge point is arranged on the second swing arm support. The two ends of the second centering pull rod are respectively hinged to the second slider seat hinge point and the second swing arm hinge point.

[0014] Compared with the prior art, the positive effects of the present utility model are as follows:

[0015] 1. The bar automatic sorting device of the present utility model can be used in conjunction with a standard material rack and a cutting machine to achieve fully automated production of the feeding process on an automated production line. Workers only need to hoist and push the standard material rack into the corresponding position in the discharging area of the cutting machine and start the automatic control, which reduces the labor intensity of the operator. One person can be on duty for 3 to 4 cutting and discharging workstations, which can help production enterprises reduce staff, lower costs, and increase efficiency.

[0016] 2. The length sorting mechanism in the bar automatic sorting device of the present utility model has an automatic centering function. Before the bar undergoes length sorting, it can be automatically centered to ensure the stability of length sorting. The automatic centering mechanism of the length sorting mechanism has a wide compatibility range and can be compatible with the automatic centering of bars with lengths between 400 mm and 800 mm, meeting the need for rapid product changeover and production change of products with different length specifications without adjustment.

[0017] 3. The length detection in the length sorting mechanism adopts the mechanical contact detection principle. Compared with the photoelectric non-contact detection, the result judgment is more reliable. The detection mechanism is an articulated structure. The distances between the bar contact end and the mechanism sensing end and the hinge center are designed and installed according to a magnification ratio. The distance L1 between the mechanism sensing end and the hinge center is adjustable, and the distance L2 between the bar contact end and the hinge center is fixed and non-adjustable. Generally, a magnification ratio of 5 ≤ L1 / L2 ≤ 10 is appropriate. By adjusting the distance of the sensing end, the detection accuracy can be adjusted. Bars with a length error exceeding ±0.5 mm can be judged, sorted, and isolated.

[0018] 4. The end trimming and material aligning mechanism in the bar automatic sorting device of the present utility model adopts the automatic centering principle. When completing the end trimming operation of the bar in the standard material rack, it can also synchronously complete the automatic centering operation of the bar in the standard material rack, ensuring that the bar remains in a neat state in the standard material rack, thus meeting the requirements of the subsequent feeding workstation on the automated production line. The automatic centering mechanism of the end trimming and material aligning mechanism can also be compatible with the automatic centering of bars with lengths between 400 mm and 800 mm in the standard material rack, meeting the need for rapid product changeover and production change of products with different length specifications without adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be described by way of examples with reference to the accompanying drawings, where:

[0020] Figure 1 is a perspective view of a bar automatic sorting device;

[0021] Figure 2 is a schematic structural diagram of a frame;

[0022] Figure 3It is a schematic structural diagram of the length sorting mechanism 3;

[0023] Figure 4 It is a top view of the first automatic centering mechanism 8;

[0024] Figure 5 It is a three-dimensional view of the first automatic centering mechanism 8;

[0025] Figure 6 It is a schematic structural diagram of the material pressing and blanking blocking mechanism 10;

[0026] Figure 7 It is a schematic structural diagram of the sorting mechanism 9;

[0027] Figure 8 It is a schematic structural diagram of the length detection mechanism 11;

[0028] Figure 9 It is a schematic structural diagram of the head trimming and material aligning mechanism without the blanking limit device;

[0029] Figure 10 It is a structural installation diagram of the head trimming and material aligning mechanism with the blanking limit device;

[0030] Figure 11 It is an enlarged structural diagram of the head trimming and material aligning mechanism with the blanking limit device;

[0031] Figure 12 It is a state diagram of the first centering actuator 25 in the retracted (left figure) and extended (right figure) states;

[0032] Figure 13 It is a state diagram of the material pressing actuator 35 in the extended and material pressing state;

[0033] Figure 14 It is a state diagram after the pusher actuator 42 of the length detection mechanism 11 is extended;

[0034] Figure 15 It is a state diagram of the qualified bar falling when the blanking blocking actuator 34 retracts;

[0035] Figure 16 It is a state diagram of the unqualified bar falling into the isolation area;

[0036] Figure 17 State diagram of the standard material rack in the head trimming and material aligning state (top view of the bar automatic sorting device with the first substrate, the second substrate and the length sorting mechanism removed);

[0037] The reference numerals in the figure include: frame 1, end trimming and aligning mechanism 2, length sorting mechanism 3, upper end face 4 of the frame, standard material rack 5, side faces 6 around the frame, positioning structure 7, first automatic centering mechanism 8, sorting mechanism 9, material pressing and blocking mechanism 10, length detection mechanism 11, first substrate 12, first swing arm support 13, first swing arm 14, first centering pull rod 15, first guide member connecting plate 16, first slider seat hinge point 17, first swing arm hinge point 18, discharge plate support 19, discharge plate 20, first guide member 21, first slider 22, first slider seat 23, centering clamping plate 24, first centering actuator 25, actuator support 26, bar stock 27, second substrate 28, material pressing plate 29, height limiting member 30, material blocking plate 31, cross beam 32, support 33, material blocking actuator 34, material pressing actuator 35, support 36, sorting actuator 37, movable end 38 of the sorting actuator, material blocking member 39, support plate 40, mounting seat 41, material pushing actuator 42, movable end 43 of the material pushing actuator, material pushing plate 44, first probe support 45, first detection probe 46, mounting frame 47, adjusting member 48, second detection probe 49, second probe support 50, detection member 51, counterweight member 52, rotating member 53, blanking limit device 54, second automatic centering mechanism 55, fixed baffle connecting member 56, fixed block 57, blanking limit member 58, fixed baffle 59, second slider seat 60, movable end 61 of the centering actuator, second centering actuator 62, second slider 63, second guide member connecting plate 64, movable baffle 65, movable baffle hinge member 66, second swing arm hinge point 67, second centering pull rod 68, second swing arm 69, second swing arm support 70, second guide member 71, fixed seat 72, third substrate 73, second slider seat hinge point 74. Detailed implementation manners

[0038] An automatic bar stock sorting device, as Figure 1 shown, includes a frame 1, an end trimming and aligning mechanism 2, and a length sorting mechanism 3.

[0039] The frame 1 is assembled from section steels, and the structure is as Figure 2 shown. The upper end face 4 of the frame is used to install the length sorting mechanism 3, and the side faces 6 around the frame are used to install the end trimming and aligning mechanism 2. The inside of the frame is used to place the standard material rack 5, and a positioning structure 7 is arranged inside the frame to ensure that the standard material rack is centered in the frame.

[0040] The structure of the length sorting mechanism 3 is as Figure 3 shown, and includes a first automatic centering mechanism 8, a sorting mechanism 9, a material pressing and blocking mechanism 10, and a length detection mechanism 11, where:

[0041] The structure of the first automatic centering mechanism 8 is as Figure 4 , Figure 5As shown in the figure, it includes: a first substrate 12, a first swing arm support 13, a first swing arm 14, a first centering pull rod 15, a first guide part connecting plate 16, a first slider seat hinge point 17, a first swing arm hinge point 18, a discharge plate support 19, a discharge plate 20, a first guide part 21, a first slider 22, a first slider seat 23, a centering clamping plate 24, a first centering actuator 25 and an actuator support 26. Among them: The discharge plate 20 is fastened to the discharge plate support 19 with a height difference before and after. The discharge plate support 19 is installed in the middle of the first substrate 12. The height difference of the discharge plate support 19 ensures that the discharge plate has a certain slope, so that the bar stock on the discharge plate can freely roll under the condition of gravity. Two groups of first guide parts 21 respectively pass through the discharge plate support 19 and are fastened symmetrically and parallelly on the discharge plate support. The two side ends are fastened through the first guide part connecting plate 16 to ensure that the distance between the first guide parts 21 is consistent with the center distance of the discharge plate support 19. Four groups of first sliders 22 are respectively installed on two groups of first slider seats 23. The first slider 22 passes through the first guide part 21 and can slide bidirectionally along the first guide part 21. A group of centering clamping plates 24 is installed on each group of first slider seats 23. The first swing arm support 13 is fastened in the middle of the first substrate 12 and is located at the symmetric center in the two directions of the distance and the axis between the two groups of first guide parts 21. The center of the first swing arm 14 is sleeved on the rotating shaft of the first swing arm support 13 and can rotate around the axis of the first swing arm support 13. The two ends of the two groups of first centering pull rods 15 are hinge structures and are respectively hinged to the first slider seat hinge point 17 (set on the first slider seat 23) and the first swing arm hinge point 18 (set on the first swing arm support 13). The first centering actuator 25 is installed on one side of the substrate through the actuator support 26. The movable end of the first centering actuator 25 is fixedly connected to the centering clamping plate 24 on this side. All the structural components of the entire automatic centering mechanism are located in the space between the first substrate 12 and the discharge plate 20. Only the centering clamping plate 24 is higher than the discharge plate 20 and is used for centering and positioning the bar stock 27 on the discharge plate. The first centering actuator 25 is responsible for performing the centering and positioning action. When the first centering actuator 25 extends, the centering clamping plate 24 connected to the movable end of the first centering actuator 25 slides axially along the first guide part 21 towards the opposite side. This action is transmitted to the first slider seat 23 on the opposite side through the first centering pull rod 15 and the rotation of the first swing arm 14 around the first swing arm support 13. The first slider seat 23 drives the centering clamping plate 24 to slide towards each other. After the two centering clamping plates 24 slide towards each other, the distance between them decreases, completing the centering and aligning of the bar stock on the discharge plate and preparing for the subsequent length detection. In the initial state, the movable end of the first centering actuator 25 is in the retracted state, and the distance between the two centering clamping plates 24 is in the maximum state.

[0042] The structure of the material pressing and blocking mechanism 10 is as Figure 6As shown in the figure, it includes: a second substrate 28, a pressure plate 29, a height limiting member 30, a material stop 31, a cross beam 32, a bracket 33, a material stop actuating mechanism 34, a pressure plate actuating mechanism 35, and a support 36. Among them: The material stop actuating mechanism 34 is installed in the middle of the second substrate 28, facing the first automatic centering mechanism 8. The material stop 31 is installed at the movable end of the material stop actuating mechanism 34, and the material stop 31 is higher than the discharge plate 20 of the first automatic centering mechanism 8. After the movable end of the material stop actuating mechanism 34 extends, the material stop 31 is in close contact with the discharge plate 20. After the movable end of the material stop actuating mechanism 34 retracts, the material stop 31 disengages from the discharge plate 20. The pressure plate actuating mechanism 35 is installed on the cross beam 32 through the support 36. The cross beam 32 is installed across two brackets 33, and the two brackets 33 are installed on the second substrate 28, on both sides of the material stop actuating mechanism 34. The position of the cross beam 32 can be adjusted on the bracket 33 to ensure the proper position of the pressure plate actuating mechanism 35. The movable end of the pressure plate actuating mechanism 35 is installed with the pressure plate 29. When the movable end of the pressure plate actuating mechanism 35 extends, the pressure plate 29 can press the remaining bars on the discharge plate 20 except those close to the material stop 31. After the length of the bar is detected by the length detection mechanism, the movable end of the pressure plate actuating mechanism 35 retracts, and then the bar close to the material stop 31 on the discharge plate 20 can be released. If the length detection is qualified, it is released into the standard material rack below the first substrate 12 and the second substrate 28. If the length detection is unqualified, it is sorted and isolated by the sorting mechanism. The height limiting member 30 is installed across two brackets 33, and its installation position can be adjusted on the bracket to ensure that the bars on the discharge plate slide downward in a single row. In the initial state, the material stop actuating mechanism 34 is in the extended state, the material stop 31 is in close contact with the discharge plate 20, and the pressure plate actuating mechanism 35 is in the retracted state.

[0043] The structure of the sorting mechanism 9 is as Figure 7 shown in the figure, and it includes: a sorting actuating mechanism 37, a movable end 38 of the sorting actuating mechanism, a material stop member 39, and a support plate 40. Two sets of sorting actuating mechanisms 37 are respectively installed at symmetric positions on both sides of the first substrate 12 close to the edge. The movable end 38 of the sorting actuating mechanism is fixedly connected to the material stop member 39. The height of the material stop member 39 is flush with the lower end face of the discharge plate 20 of the first automatic centering mechanism 8. The upper surface of the support plate 40 is fixedly installed with the lower surface of the material stop member 39 and is centered with the material stop member 39. When the length detection mechanism detects unqualified products, the movable ends 38 of the two sets of sorting actuating mechanisms on both sides of the first substrate 12 extend simultaneously, and the movable end of the material stop actuating mechanism of the pressure and material stop mechanism retracts synchronously. The unqualified products fall onto the support plate 40 below the discharge plate 20, realizing the sorting and isolation of unqualified products. When the length detection mechanism detects qualified products, the sorting actuating mechanism 37 does not act, and the movable end of the material stop actuating mechanism of the pressure and material stop mechanism retracts. The qualified products fall downward into the standard material rack below the substrate. In the initial state, the movable end of the sorting actuating mechanism 37 is in the retracted state, the material stop member 39 is aligned with the discharge plate 20 and is in close contact with the material stop 31.

[0044] The structure of the length detection mechanism 11 is as follows: Figure 8 As shown, it includes: a mounting seat 41, a pusher actuator 42, a pusher actuator movable end 43, a pusher plate 44, a first probe bracket 45, a first detection probe 46, a mounting frame 47, an adjustment member 48, a second detection probe 49, a second probe bracket 50, a detection member 51, a counterweight member 52, and a rotating member 53; wherein: the pusher actuator 42 is fastened to the second substrate 28 through the mounting seat 41, the pusher plate 44 is connected to the movable end of the pusher actuator 42, and the movable end of the pusher actuator extends out, so that the bar material arranged on the discharge plate 20 close to the material stopper plate 31 of the material pressing and stopper mechanism can be pushed in the axial direction, and the movable end of the pusher actuator 42 is retracted, and the pusher plate 44 is out of contact with the bar material. The adjustment member 48 is fastened to the second substrate 28 through the mounting frame 47, and the mounting position of the adjustment member can be adjusted on the mounting frame to meet the needs of detecting bars of different length specifications. The first detection probe 46 is mounted on the mounting frame 47 through the first probe bracket 45, and the second detection probe 49 is mounted on the adjustment member 48 through the second probe bracket 50. The installation position of the second probe bracket 50 can be adjusted on the adjustment member 48, and the first probe bracket 45 can also be adjusted on the mounting frame 47. The rotation center of the rotating member 53 is sleeved on the adjustment member 48, and a detection member 51 is arranged in the middle of the upper end of the rotating member 53, and a counterweight member 52 is arranged on one side of the rotating member. Under the action of the counterweight member, the rotating member rotates in the direction of the push material actuator 42, and the detection member 51 deviates from the detection point of the second detection probe 49. The position of the adjustment member 48 on the mounting frame 47 is adjusted. When the first detection probe 46 detects that the bar material is in place, the push material actuator 42 drives the push plate 44 to push the bar material close to the blocking plate 31 forward, and the bar material presses on the rotating member 53, and the contact position is below the rotation axis of the rotating member. When the length of the bar is of qualified size, the rotating part rotates in the vertical direction, the detection part is aligned with the second detection probe 49, and the second detection probe 49 gives a signal indicating that the length of the bar is qualified. When the length of the bar is unqualified and the size is short, the rotating part cannot be fully rotated to the vertical direction, and the second detection probe 49 cannot give a signal, indicating that the length of the bar is unqualified. When the length of the bar is unqualified and the size is long, the rotating part rotates beyond the vertical direction, and the second detection probe 49 cannot give a signal, indicating that the length of the bar is unqualified. In the initial state, the active end 43 of the push actuator is in a retracted state, waiting for the first automatic centering mechanism 8 to center and straighten the bar on the discharge plate 20.

[0045] The structure of the trimming mechanism 2 is as follows: Figures 9 to 11As shown in the figure, it includes two sets of blanking limit devices 54 and two sets of second automatic centering mechanisms 55, specifically including: fixed baffle connecting pieces 56, fixed blocks 57, blanking limit pieces 58, fixed baffles 59, second slider seats 60, centering actuator movable ends 61, second centering actuators 62, second sliders 63, second guide connecting plates 64, movable baffles 65, movable baffle hinge pieces 66, second swing arm hinge points 67, second centering tie rods 68, second swing arms 69, second swing arm supports 70, second guides 71, fixed seats 72, third substrates 73, second slider seat hinge points 74. Among them: The two sets of blanking limit devices 54 are symmetrically and firmly installed on the lower surfaces of the first substrate 12 and the second substrate 28 near the blanking port through the fixed blocks 57, and the front-back spacing is slightly larger than the width of the standard material rack. The blanking limit piece 58 is fastened to the fixed block 57 and hangs freely, and the left-right relative spacing is slightly larger than the diameter of the bar stock. The two sets of second automatic centering mechanisms 55 are respectively installed on the four side surfaces of the frame through the third substrates 73. In each set of second automatic centering mechanisms 55, two sets of second guides 71 respectively pass through the fixed seats 72 and are symmetrically and firmly fastened on the inner surface of the third substrate 73, and the two ends on both sides are fastened through the second guide connecting plates 64 to ensure that the spacing between the second guide connecting plates 64 is consistent with the center spacing of the fixed seats 72. Four sets of second sliders 63 are respectively installed on two sets of second slider seats 60, and the second sliders 63 pass through the second guides 71 and can slide bidirectionally along the second guides 71. A set of fixed baffle connecting pieces 56 is installed on one set of second slider seats 60, and a set of movable baffle hinge pieces 66 is installed on the other set of second slider seats 60. The second swing arm support 70 is fastened to the middle of the third substrate 73 and is located at the symmetric center in the two directions of the spacing and the axis of the two sets of second guides 71. The center of the second swing arm 69 is sleeved on the rotating shaft of the second swing arm support 70 and can rotate around the axis of the second swing arm support 70. The two ends of the two sets of second centering tie rods 68 are hinge structures and are respectively hinged to the second slider seat hinge points 74 (set on the second slider seats 60) and the second swing arm hinge points 67 (set on the second swing arm supports 70). The second centering actuator 62 is firmly installed on the outer surface of the third substrate 73, and the centering actuator movable end 61 of the second centering actuator is firmly connected to the second slider seat 60 on this side. The fixed baffle 59 straddles the two sets of fixed baffle connecting pieces 56, and the two movable baffles 65 are respectively installed flush with the end faces of the movable baffle hinge pieces 66, and the movable baffles can rotate around the movable baffle hinge pieces.When the two movable baffles are closed, aligned and locked, the second centering actuator 62 is responsible for performing the centering and aligning action. The second centering actuator 62 extends, and the second slider seat 60 connected to the movable end 61 of the centering actuator on one side of the fixed baffle 59 slides toward the opposite side along the axial direction of the second guide member 71. This action is transmitted to the second slider seat 60 on the opposite side through the second centering pull rod 68 and the second rotating arm 69 rotating around the second rotating arm support 70. The second slider seat 60 drives the fixed baffle 59 and the movable baffle 65 to slide toward each other. After the baffles on both sides slide toward each other, the distance is reduced, and then the movable end 61 of the centering actuator retracts, and the baffles on both sides are separated from the bar in the standard material rack, completing the alignment of the bar in the standard material rack. This alignment action is intermittently performed to ensure that the bar is in a neat state with both ends aligned after falling into the standard material rack. After the rack is full, open the movable baffle 65, the standard rack can be pulled out, and transferred to the loading station of the automated production line to prepare for subsequent automated loading. In the initial state, the movable baffle 65 is in a closed, aligned and locked state, and the second centering actuator 62 is in an extended state.

[0046] The bar material sorting method based on the automatic bar material sorting device of the utility model comprises the following steps:

[0047] Step 1: The movable end of the first centering actuator 25 extends out, driving the two centering clamps 24 to center the bars on the discharge plate 20, and then the movable end of the first centering actuator 25 retracts to its original position. The first centering actuator 25 performs the centering action intermittently. Figure 12 shown.

[0048] Step 2: The active end of the material pressing actuator 35 extends, and the material pressing plate 29 presses the remaining bars on the discharge plate 20 except those close to the material blocking plate 31, and keeps the pressing state. Figure 13 shown.

[0049] Step 3: When the first detection probe 46 detects that there is material at this position, the movable end 43 of the push actuator extends out, and the push plate 44 pushes a bar close to the material blocking plate toward the rotating part 53, and then the movable end 43 of the push actuator retracts to its original position. When the length of the bar is of qualified size, the rotating part 53 rotates in the vertical direction, and the detection part 51 is aligned with the second detection probe 49, and the second detection probe 49 gives a signal indicating that the length of the bar is qualified. When the length of the bar is unqualified and the size is short, the rotating part cannot fully rotate to the vertical direction, and the second detection probe 49 cannot give a signal, indicating that the length of the bar is unqualified. When the length of the bar is unqualified and the size is long, the rotating part rotates beyond the vertical direction, and the second detection probe 49 cannot give a signal, indicating that the length of the bar is unqualified. Figure 14 As shown in the figure, the solid line test piece indicates that the bar length is qualified, and the dotted line test piece indicates that the bar length is unqualified.

[0050] Step 4: When the size is qualified, the blanking actuating mechanism 34 retracts, the blanking plate 31 disengages from the discharge plate 20, and the bar stock with qualified length dimension is placed into the standard stock rack below the first substrate 12 and the second substrate 28. Then the blanking actuating mechanism 34 extends again, and the blanking plate 31 abuts against the discharge plate 20 again, waiting for the next bar stock to arrive. During the process of the bar stock falling into the standard stock rack, the blanking limit member 58 functions to limit the blanking range of the bar stock, ensuring that the bar stock always falls at the middle position within the stock rack. After the bar stocks are stacked in the middle of the stock rack, the flexible blanking limit member naturally deviates to both sides to ensure the smoothness of blanking. As Figure 15 shown. When the size is unqualified, the sorting actuating mechanism 37 extends, and at the same time the blanking actuating mechanism 34 retracts synchronously. The bar stock with unqualified length dimension falls onto the support plate 40 below the discharge plate 20, realizing the sorting and isolation of unqualified products. Then the sorting actuating mechanism 37 retracts, and at the same time the blanking actuating mechanism 34 extends synchronously, waiting for the next bar stock to arrive. As Figure 16 shown.

[0051] Step 5: The material pressing actuating mechanism 35 retracts to release the bar stock on the discharge plate 20. Under the action of the height limiting member 30, the bar stock rolls downward in a single row until it abuts against the blanking plate 31. When the first detection probe 46 detects the presence of material, the material pressing actuating mechanism 35 extends, and the material pressing plate 29 presses the remaining bar stock on the discharge plate 20 except the one abutting against the blanking plate 31 again and maintains the pressing state. As Figure 13 shown. Wait for the pushing actuating mechanism 42 of the length detection mechanism 11 to perform the action of Step 3.

[0052] Then the length sorting mechanism 3 starts to execute the actions of Steps 3, 4, and 5 in a loop from Step 3. The action of Step 1 is executed intermittently without affecting the execution effects of other sub-steps.

[0053] Step 6: The end trimming and aligning mechanism 2 performs intermittent end trimming and aligning on the bar stock falling into the standard stock rack. Each time the second centering actuating mechanism 62 extends, the distance between the fixed baffle 59 and the movable baffle 65 decreases until the baffle abuts against the bar stock in the standard stock rack, thereby ensuring the neat state of the bar stock in the standard stock rack. The action of Step 6 is also executed intermittently without affecting the execution effects of other sub-steps. As Figure 17 shown.

Claims

1. An automatic bar sorting device, characterized in that: It includes a frame and a length sorting mechanism and an end-aligning and material-aligning mechanism arranged on the frame, where: The length sorting mechanism includes a first automatic centering mechanism, a sorting mechanism, a material pressing and blocking mechanism, and a length detection mechanism, where: The first automatic centering mechanism includes a first substrate and a discharge plate support, a first swing arm support, and an actuator support arranged on the first substrate. A discharge plate and two groups of first guiding members are arranged on the discharge plate support. Two groups of first sliders are arranged on each group of first guiding members. Centering clamping plates are arranged on the slider seats of each group of first sliders. A first swing arm is arranged on the first swing arm support. A first centering pull rod is arranged between the slider seat of the first slider and the first swing arm support. A first centering actuator is arranged on the actuator support. The movable end of the first centering actuator is fixedly connected to the centering clamping plate on the same side; The material pressing and blocking mechanism includes a second substrate and a blocking actuator and a material pressing actuator arranged on the second substrate. A blocking plate higher than the discharge plate is installed at the movable end of the blocking actuator. A material pressing plate is installed at the movable end of the material pressing actuator; The sorting mechanism includes a sorting actuator, a blocking member, and a support plate arranged on the first substrate. The movable end of the sorting actuator is fixedly connected to the blocking member; The length detection mechanism includes a pushing actuator, a pushing plate, a detection member, a first detection probe, and a second detection probe installed on the second substrate. The pushing plate is connected to the movable end of the pushing actuator; The centering clamping plate is higher than the discharge plate. The end-aligning and material-aligning mechanism includes two sets of blanking limit devices and two sets of second automatic centering mechanisms. Each set of second automatic centering mechanisms includes a third substrate and a fixed seat, a second swing arm support, and a second centering actuator arranged on the third substrate. Two groups of second guiding members are arranged on the fixed seat. Two groups of second sliders are arranged on each group of second guiding members. The four groups of second sliders are respectively installed on two sets of second slider seats. A fixed baffle and two movable baffles are arranged on the second slider seats. A second centering pull rod is arranged between the second slider seat and the second swing arm support. A second swing arm is arranged on the second swing arm support. The movable end of the second centering actuator is fixedly connected to the second slider seat on the same side; The two sets of blanking limit devices are respectively symmetrically and fixedly installed on the lower surfaces of the first substrate and the second substrate near the blanking port through fixing blocks. Blanking limit members are fixed on the fixing blocks. The blanking limit members are flexible members that hang freely, and the left-right relative distance is slightly larger than the diameter of the bar stock.

2. The automatic bar stock sorting device according to claim 1, characterized in that: A first slider seat hinge point is arranged on the slider seat of the first slider. A first swing arm hinge point is arranged on the first swing arm support. The two ends of the first centering pull rod are respectively hinged to the first slider seat hinge point and the first swing arm hinge point.

3. The automatic bar stock sorting device according to claim 1, characterized in that: There is a height difference between the front and rear of the discharge plate support.

4. An automatic bar stock sorting device according to claim 1, characterized in that: The two groups of first guiding members respectively pass through the discharge plate support, are symmetrically and fixedly fastened on the discharge plate support, and the two side ends are fastened through a first guiding member connecting plate to ensure that the distance between the first guiding members is consistent with the center distance of the discharge plate support.

5. The automatic bar stock sorting device according to claim 1, wherein: The height of the blocking member is flush with the lower end surface of the discharge plate. The upper surface of the support plate is fixedly installed with the lower surface of the blocking member and is centered and aligned with the blocking member.

6. The automatic bar stock sorting device according to claim 1, characterized in that: The blank holding actuator is mounted on the crossbeam through the support. The crossbeam is installed across two brackets, and the two brackets are mounted on the second substrate, located on both sides of the stop actuator. A height limit member is installed across the two brackets.

7. The automatic bar stock sorting device according to claim 1, characterized in that: An installation frame is provided on the second substrate, and an adjusting member is provided on the installation frame. The first detection probe is mounted on the installation frame through the first probe support, and the second detection probe is mounted on the adjusting member through the second probe support. A rotating member is sleeved on the adjusting member, a detection member is provided at the center of the upper end of the rotating member, and a counterweight member is provided on one side of the rotating member.

8. The automatic bar stock sorting device according to claim 1, wherein: A second slider seat hinge point is provided on the second slider seat, and a second swing arm hinge point is provided on the second swing arm support. The two ends of the second centering pull rod are respectively hinged to the second slider seat hinge point and the second swing arm hinge point.

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