Automatic steel plate feeding device and limiting structure thereof

Abstract

The invention relates to a limiting structure for an automatic steel plate feeding device and further relates to the automatic steel plate feeding device. The limiting structure for the automatic steel plate feeding device comprises a driving assembly and a limiting assembly. The driving assembly is arranged above a steel plate feeding path and is orthogonal to the steel plate feeding path, the limiting assemblies are oppositely arranged at the two ends of the driving assembly and located below the driving assembly, and the limiting assemblies are used for driving the limiting assemblies to move in the same direction or away from each other. The limiting assembly comprises a lower limiting wheel and an upper limiting wheel used for limiting the steel plate in the vertical direction, and the upper limiting wheel and the lower limiting wheel are oppositely arranged in the vertical direction and can get close to or get away from each other. And the side limiting wheel is used for laterally limiting the steel plate. Under the driving of the driving assembly, the limiting assemblies can be automatically and relatively close to or away from each other so as to be suitable for limiting the steel plates with different widths in the vertical direction and the two sides, manual cooperative operation is not needed, time and labor are saved, and the limiting precision can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel plate processing, and in particular to an automatic steel plate feeding device and a limiting mechanism thereof. Background Art

[0002] The laser cutting machine is a device used to cut steel plates, and the automatic steel plate feeding device is used to automatically feed the steel plates to the laser cutting machine. The automatic steel plate feeding device transmits the steel plates through the driving rollers, but during the transmission process, the steel plates are prone to horizontal skew, and the steel plates are prone to upside down warping after extending out of the driving rollers. In order to ensure the processing accuracy, manual assistance correction is required during the process of feeding into the laser cutting machine. Due to the large size of the steel plates, manual operation is time-consuming and labor-intensive, and the correction accuracy is low. Therefore, there is an urgent need for an automatic steel plate feeding device that can correct and limit the steel plates during the process of feeding them to the laser cutting machine. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an automatic steel plate feeding device, which solves the technical problem that during the process of conveying steel plates to a laser cutting machine, the steel plates are prone to horizontal skew and up and down warping, which affects the processing accuracy.

[0005] (II) Technical solution

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] In a first aspect, an embodiment of the present invention provides a limiting structure for a steel plate automatic feeding device, comprising a driving component and a limiting component;

[0008] The driving assembly is arranged above the steel plate feeding path and is orthogonal to the steel plate feeding path, the limiting assemblies are relatively arranged at two ends of the driving assembly and are located below the driving assembly, and the limiting assemblies are used to drive the limiting assemblies to move toward or away from each other;

[0009] The limiting assembly includes: a lower limiting wheel and an upper limiting wheel for limiting the steel plate in the upper and lower directions, the upper limiting wheel and the lower limiting wheel are arranged relatively to each other and can be relatively close to or far away from each other; and a side limiting wheel for limiting the steel plate in the lateral direction.

[0010] According to the present invention, the drive assembly comprises a horizontally oriented bidirectional lead screw;

[0011] The limiting assembly is threadedly connected to both ends of the bidirectional lead screw;

[0012] When the bidirectional lead screw rotates, the bidirectional lead screw can drive the limit assembly to move toward or away from each other.

[0013] According to the present invention, the limiting assembly also includes a C-shaped frame, the lower limiting wheel is arranged inside the lower end of the C-shaped frame, the upper limiting wheel is arranged inside the upper end of the C-shaped frame to be lifted relative to the C-shaped frame, and the side limiting wheel is arranged inside the side wall of the C-shaped frame.

[0014] According to the present invention, each of the position limiting assemblies further comprises a lifting rod, an L-shaped rod, a hinge rod and a first elastic member;

[0015] The lifting rod is oriented vertically, and the lifting rod can be inserted into the upper end of the C-shaped frame so as to be lifted relative to the C-shaped frame, and the upper limit wheel is arranged at one end of the lifting rod extending into the interior of the C-shaped frame;

[0016] The horizontal portion of the L-shaped rod is inserted into the side wall of the C-shaped frame so as to be horizontally movable relative to the C-shaped frame, and the side limiting wheel is arranged at one end of the L-shaped rod extending into the interior of the C-shaped frame;

[0017] The two ends of the hinged rod are respectively hinged to the other end of the lifting rod and the other end of the L-shaped rod;

[0018] The first elastic member is horizontally oriented and arranged on the C-shaped frame and elastically connected to the side limiting wheel to support the side limiting wheel.

[0019] According to the present invention, each of the position limiting assemblies further comprises a first support rod;

[0020] The first support rod is horizontally oriented and can be inserted into the side wall of the C-shaped frame so as to be horizontally movable relative to the C-shaped frame. The first support rod is sleeved with the first elastic member, and the two ends of the first elastic member are respectively fixedly connected to the C-shaped frame and the first support rod.

[0021] According to the present invention, the bidirectional lead screw comprises threaded sections at both ends and an optical axis in the middle;

[0022] The driving assembly further comprises two threaded sleeves and two second elastic members, and the two threaded sleeves, the two second elastic members and the two limit assemblies correspond to each other one by one;

[0023] The threaded sleeve is threadedly connected to the threaded section of the bidirectional lead screw and connected to the C-shaped frame;

[0024] The second elastic member is elastically connected to the threaded sleeve in a horizontal orientation.

[0025] According to the present invention, the driving assembly further comprises a guide rod and two guide members;

[0026] The guide rod is parallel to the bidirectional lead screw;

[0027] The two guide members are both L-shaped members, the vertical parts of the two guide members can be sleeved on the two ends of the guide rod so as to move horizontally along the guide rod, and the guide members are fixedly connected to the threaded sleeve;

[0028] The C-shaped frame is connected to the C-shaped frame so as to be horizontally movable relative to the guide member;

[0029] The second elastic member is sleeved on the horizontal portion of the guide member, and two ends of the second elastic member are respectively fixedly connected to the guide member and the C-shaped frame.

[0030] In a second aspect, the present invention further provides an automatic steel plate feeding device, comprising the above-mentioned limiting structure for the automatic steel plate feeding device, and also comprising a conveying structure, wherein the conveying structure comprises a driving roller and a conveying roller; the conveying roller can be raised and lowered relative to the driving roller and arranged above the driving roller, and the conveying roller and the driving roller can clamp and convey the steel plate;

[0031] According to the present invention, the bidirectional lead screw and the conveying roller are linked and rotate in the same direction; when the driving roller rotates and conveys the steel plate, the steel plate can drive the conveying roller and the bidirectional lead screw to rotate in the first direction.

[0032] According to the present invention, one end of the bidirectional lead screw is fixedly connected to the first wheel, one end of the conveying roller is fixedly connected to the second wheel, and a synchronizing member is wound around the first wheel and the second wheel so that the bidirectional lead screw and the conveying roller are linked and rotate in the same direction;

[0033] One end of the bidirectional lead screw is also fixedly connected to a return gear, which is meshed with a horizontal rack. The horizontal rack can move in a horizontal direction, and the horizontal rack is elastically connected to a third elastic member oriented horizontally.

[0034] (III) Beneficial effects

[0035] The beneficial effects of the present invention are as follows: when the position-limiting structure of the present invention is used, under the drive of the driving component, the position-limiting component can automatically move relatively close or far away to be applicable to the position-limiting of steel plates of different widths in the up-down direction and on both sides, without the need for manual operation, saving time and effort, and improving the position-limiting accuracy. Among them, when the position-limiting component is relatively close to both sides of the steel plate, the upper position-limiting wheel and the lower position-limiting wheel can be relatively close to limit the position of the steel plate in the up-down direction to prevent the thinner steel plate from being squeezed by the transmission unit and tilting up, and the side position-limiting wheels can abut against the steel plate to support and limit the position of both sides of the steel plate, so as to correct the deviation of the steel plate and facilitate directional transportation, so as to prevent the steel plate from being offset after transportation and affecting the accuracy of subsequent processing, facilitate operation, and improve convenience and practicality.

[0036] In the automatic steel plate feeding device of the present invention, the conveying roller can be arranged above the driving roller so as to be raised and lowered relative to the driving roller to adjust the distance between the two, and the conveying roller and the driving roller can clamp and convey steel plates of different thicknesses. At the same time, the conveying structure can cooperate with the limiting structure to limit the steel plate in the up and down directions and both sides during the process of conveying the steel plate, so as to improve the precision of the directional conveying of the steel plate, and further improve the precision of the subsequent cutting of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front view of the automatic steel plate feeding device of the present invention;

[0038] Figure 2 for Figure 1 A top view of

[0039] Figure 3 for Figure 1 Side view of

[0040] Figure 4 is a three-dimensional schematic diagram of a first support frame;

[0041] Figure 5 It is the front view of the limiting structure;

[0042] Figure 6 for Figure 5 A in the enlarged view;

[0043] Figure 7 for Figure 5 The enlarged view of point B in the figure;

[0044] Figure 8 It is a schematic diagram of the assembly of the return gear, the horizontal rack and the first horizontal guide rod;

[0045] Fig. 9 It is a three-dimensional schematic diagram of the tensioning structure.

[0046] [Description of Reference Numerals]

[0047] 1: conveying structure; 11: driving roller; 12: conveying roller; 13: first supporting frame; 131: slot; 14: driving motor; 15: fourth elastic member; 16: telescopic rod; 17: lifting block;

[0048] 2: limit structure; 201: lower limit wheel; 202: upper limit wheel; 203: side limit wheel; 204: C-shaped frame; 2041: connecting rod; 205: lifting rod; 206: L-shaped rod; 207: hinged rod; 208: first elastic member; 209: first support rod; 210: threaded sleeve; 211: second elastic member; 212: bidirectional lead screw; 213: guide rod; 214: guide member; 215: return gear; 216: horizontal rack; 217: mounting frame; 218: third elastic member; 219: second support frame; 220: second horizontal guide rod; 221: first horizontal guide rod; 222: sliding sleeve;

[0049] 3: Synchronous structure: 31: first round; 32: second round; 33: synchronous parts;

[0050] 4: tensioning structure; 41: fixing plate; 42: tensioning wheel; 43: second support rod; 44: fifth elastic member;

[0051] 5: workbench; 51: roller. DETAILED DESCRIPTION

[0052] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific embodiments. Figure 1 The orientation is used as a reference.

[0053] Example 1

[0054] See also Figure 1-9 An embodiment of the present invention provides a limiting structure for an automatic steel plate feeding device, including a driving component and a limiting component.

[0055] The driving component is arranged above the steel plate feeding path and is orthogonal to the steel plate feeding path. The limiting components are relatively arranged at both ends of the driving component and are located below the driving component. The limiting components are used to drive the limiting components to move toward or away from each other.

[0056] The limiting assembly includes a lower limiting wheel 201, an upper limiting wheel 202 and a side limiting wheel 203. The upper limiting wheel 202 and the lower limiting wheel 201 are used to limit the steel plate in the up and down directions. The upper limiting wheel 202 and the lower limiting wheel 201 are arranged relatively up and down and can be relatively close to or far away from each other. The side limiting wheel 203 is used to limit the steel plate in the lateral direction. The side limiting wheel 203 can move horizontally.

[0057] When the present limiting structure is used, under the drive of the driving component, the limiting component can automatically move relatively close or far away to be applicable to the limiting of the steel plates of different widths in the up and down directions and on both sides, without the need for manual operation, saving time and effort, and improving the limiting accuracy. Among them, when the limiting component is relatively close to both sides of the steel plate, the upper limiting wheel 202 and the lower limiting wheel 201 can be relatively close to limit the steel plate in the up and down directions, to prevent the thinner steel plate from being squeezed by the transmission unit and tilting up, and the side limiting wheels can abut against the steel plate to support and limit the steel plate on both sides, so as to correct the deviation of the steel plate and facilitate directional transportation, to prevent the steel plate from being offset after transportation and affecting the accuracy of subsequent processing, to facilitate operation, and to improve convenience and practicality.

[0058] Further, the driving assembly includes a horizontally oriented bidirectional lead screw 212. The limiting assembly is threadedly connected to both ends of the bidirectional lead screw 212.

[0059] When the bidirectional lead screw 212 rotates, the bidirectional lead screw 212 can drive the limiting components to move toward or away from each other, so that the limiting components can move toward or away from each other synchronously, thereby improving the limiting accuracy of the steel plate.

[0060] Furthermore, the limiting assembly also includes a C-shaped frame 204 .

[0061] The lower limiting wheel 201 is arranged inside the lower end of the C-shaped frame 204 , the upper limiting wheel 202 is arranged inside the upper end of the C-shaped frame 204 to be lifted relative to the C-shaped frame 204 , and the side limiting wheel 203 is arranged inside the side wall of the C-shaped frame 204 .

[0062] When the conveying unit 1 conveys the steel plate, the bidirectional screw 212 can rotate along the first direction, and the bidirectional screw 212 can drive the two C-shaped frames 204 to be relatively close to each other to fit on both sides of the steel plate, so as to limit the position of the steel plate, the upper limit wheel 202 and the lower limit wheel 201 can be relatively close to each other to limit the steel plate in the up and down directions, and the side limit wheel 203 can abut against the side wall of the steel plate to limit the side position of the steel plate.

[0063] Furthermore, the limiting assembly also includes a lifting rod 205 , an L-shaped rod 206 , a hinge rod 207 and a first elastic member 208 .

[0064] The lifting rod 205 is vertically oriented, and the lifting rod 205 can be inserted into the upper end of the C-shaped frame 204 so as to be lifted relative to the C-shaped frame 204. The end of the lifting rod 205 extending into the C-shaped frame 204 is provided with an upper limit wheel 202. The horizontal portion of the L-shaped rod 206 is inserted into the side wall of the C-shaped frame 204 so as to be horizontally movable relative to the C-shaped frame 204. The end of the L-shaped rod 206 extending into the C-shaped frame 204 is provided with a side limit wheel 203. The two ends of the hinge rod 207 are respectively hinged to the other end of the lifting rod 205 and the other end of the L-shaped rod 206. The first elastic member 208 is horizontally oriented and arranged on the C-shaped frame 204 and elastically connected to the side limit wheel 203 to support the side limit wheel 203.

[0065] When the two C-shaped frames 204 move toward each other to the two sides of the sleeved steel plate, the lower limit wheel 201 can abut the lower end of the steel plate. When the two C-shaped frames 204 continue to approach each other until the side limit wheel 203 abuts against the side wall of the steel plate and then stops moving, the C-shaped frame 204 can drive the upper limit wheel 202 to move horizontally inward relative to the side limit wheel 203, and the end of the hinge rod 207 connected to the lifting rod 205 moves downward and the end connected to the L-shaped rod 206 moves upward, and the lifting rod 205 drives the upper limit wheel 202 to move downward against the upper end of the steel plate, and the first elastic member 208 can be elastically deformed.

[0066] When the two C-shaped frames 204 move away from each other and detach from the two sides of the steel plate, the first elastic member 208 can rebound and drive the side limiting wheel 203 to move horizontally outward to reset relative to the side limiting wheel 203, and drive the end of the hinged rod 207 connected to the lifting rod 205 to move upward and the end connected to the L-shaped rod 206 to move downward, and the lifting rod 205 drives the upper limit wheel 202 to move upward and reset to avoid affecting the reuse.

[0067] Therefore, through the linkage relationship between the side limiting wheel 203, the upper limiting wheel 202 lifting rod 205, the L-shaped rod 206, and the articulated rod 207, the upper limiting wheel 202 can be mechanically driven to rise and fall when the two C-shaped frames 204 move toward and away from each other, and there is no need to separately set a driving component for driving the upper limiting wheel 202 to rise and fall, thereby simplifying the structure and reducing costs.

[0068] Specifically, the limiting assembly further includes a first support rod 209 .

[0069] The first support rod 209 is horizontally oriented and can be inserted into the side wall of the C-shaped frame 204 so as to be horizontally movable relative to the C-shaped frame 204. The first elastic member 208 is sleeved on the first support rod 209, and the two ends of the first elastic member 208 are respectively fixedly connected to the C-shaped frame 204 and the first support rod 209. The first support rod 209 can also further limit the precision of the horizontal movement of the side limiting wheel 203 relative to the C-shaped frame 204.

[0070] Further, in order to realize the movement of the limit assembly towards each other to limit the steel plate and the movement away from the steel plate after separation: the bidirectional lead screw 212 includes threaded sections at both ends and an optical axis in the middle. The driving assembly also includes two threaded sleeves 210 and two second elastic members 211. The two threaded sleeves 210, the two second elastic members 211 and the two limit assemblies correspond one to one.

[0071] The threaded sleeve 210 is threadedly connected to the threaded section of the bidirectional lead screw 212 and connected to the corresponding C-shaped frame 204. The second elastic member 211 is elastically connected to the corresponding threaded sleeve 210 in a horizontal orientation.

[0072] When the limit assembly needs to limit the steel plate, when the bidirectional lead screw 212 rotates in the first direction, the bidirectional lead screw 212 drives the two C-shaped frames 204 to move toward each other through the two threaded sleeves 210 until the upper and lower limit wheels 201 respectively abut against the upper and lower ends of the steel plate and the side limit wheels 203 abut against the side wall of the steel plate, and the two C-shaped frames 204 stop being relatively close to each other to avoid excessive force on both sides of the steel plate and damaging the steel plate. When the bidirectional lead screw 212 continues to rotate in the first direction, the two threaded sleeves 210 can be relatively close to the optical axis on which the bidirectional lead screw 212 is sleeved and the second elastic member 211 is elastically deformed. Subsequently, the two threaded sleeves 210 stop shifting, and when the bidirectional lead screw 212 continues to rotate in the first direction, it will not drive the two threaded sleeves 210 to be relatively close.

[0073] When the limiting assembly is detached from the steel plate, the bidirectional lead screw 212 can rotate in a second direction opposite to the first direction, the second elastic member 211 can restore and push the corresponding threaded sleeve 210 to leave the optical axis of the bidirectional lead screw 212 and be sleeved on the threaded segment so that the two threaded sleeves 210 can move away from each other along the bidirectional lead screw 212, and drive the two C-shaped frames 204 to move away from each other and reset, the first elastic member 208 can restore and drive the corresponding side limiting wheel 203 to move horizontally outward relative to the C-shaped frame 204 and reset.

[0074] Thus, the limiting components can move toward each other to limit the steel plate, and can automatically move away from each other and reset after detaching from the steel plate to avoid affecting the limiting of the steel plate again.

[0075] Furthermore, the driving assembly also includes a guide rod 213 and two guide members 214 .

[0076] The guide rod 213 is arranged parallel to the bidirectional lead screw 212. Both guide members 214 are L-shaped members, and the vertical parts of the two guide members 214 can be sleeved on the two ends of the guide rod 213 along the guide rod 213 for horizontal movement, and the guide member 214 is fixedly connected to the threaded sleeve 210. The C-shaped frame 204 can be connected to the C-shaped frame 204 for horizontal movement relative to the guide member 214. The second elastic member 211 is sleeved on the horizontal part of the guide member 214, and the two ends of the second elastic member 211 are respectively fixedly connected to the guide member 214 and the C-shaped frame 204.

[0077] When the bidirectional lead screw 212 drives the two threaded sleeves 210 to move toward or away from each other along the bidirectional lead screw 212, the two threaded sleeves 210 can drive the corresponding guide members 214 to move horizontally along the guide rod 213 to ensure that the two threaded sleeves 210 always move toward or away from each other in the horizontal direction, thereby improving the accuracy of the movement of the two limit assemblies toward or away from each other, and when the limit assembly is detached from the steel plate and the second elastic member 211 recovers and pushes the corresponding threaded sleeve 210, the coaxiality of the threaded sleeve 210 and the bidirectional lead screw 212 is ensured, so that the threaded sleeve 210 can smoothly leave the optical axis and be sleeved on the threaded segment.

[0078] Specifically, the guide member 214 is fixedly connected to the C-shaped frame 204 via a connecting rod.

[0079] Example 2

[0080] This embodiment also provides an automatic steel plate feeding device, which includes the limiting structure in Example 1 and also includes a conveying structure, and the conveying structure is used to clamp and convey the steel plate.

[0081] The conveying structure includes a driving roller 11 and a conveying roller 12 .

[0082] The conveying roller 12 can be raised and lowered relative to the driving roller 11 to adjust the distance between the two, and the conveying roller 12 and the driving roller 11 can clamp and convey steel plates of different thicknesses. At the same time, the conveying structure can cooperate with the limiting structure to limit the upper and lower directions and both sides of the steel plate during the process of conveying the steel plate, so as to improve the accuracy of the directional conveying of the steel plate, thereby improving the accuracy of the subsequent cutting of the steel plate.

[0083] Specifically, the conveying mechanism further includes two first supporting frames 13 which are arranged opposite to each other.

[0084] The two ends of the driving roller 11 are rotatably connected to the first support frame 13. Slots 131 are provided on the two first support frames 13, and the two ends of the conveying roller 12 are fixedly connected to the conveying shafts, and the two conveying shafts are inserted into the two slots 131 one by one and can be lifted and lowered in the slots 131, and the conveying shafts and the corresponding slots 131 are elastically connected to the fourth elastic member 15 oriented vertically.

[0085] When the conveying roller 12 and the driving roller 11 clamp and convey the steel plate, the conveying roller 12 can be lifted and lowered relative to the slot 131 through the conveying shaft to adjust the distance between the conveying roller 12 and the driving roller 11, and the lifted and lowered conveying roller 12 is supported by the fourth elastic member 15. When the steel plate is separated from the conveying roller 12 and the driving roller 11, the fourth elastic member 15 can also drive the conveying roller 12 to be lifted and reset through the conveying shaft.

[0086] More specifically, the two transmission shafts are rotatably connected to the lifting blocks 17, and the two lifting blocks 17 are inserted into the two slots 131 one by one. The lifting blocks 17 are connected to the corresponding slots 131 through a vertically oriented telescopic rod 16. The fourth elastic member 15 is sleeved on the telescopic rod 16, and the two ends of the fourth elastic member 15 are respectively fixedly connected to the corresponding transmission shaft and the slot 131.

[0087] When the conveying roller 12 and the driving roller 11 clamp and convey the steel plate, and the steel plate pushes the conveying roller 12 to move upward, the conveying roller 12 can drive the lifting block 17 to move upward synchronously, and the lifting block 17 can drive the telescopic rod 16 and the fourth elastic member 15 to shrink synchronously. When the steel plate leaves between the conveying roller 12 and the driving roller 11, the telescopic rod 16 and the fourth elastic member 15 can recover and drive the conveying roller 12 to move downward and reset through the lifting block 17.

[0088] Optionally, both transmission shafts are rotatably connected to the lifting block 17 via bearings.

[0089] Furthermore, the bidirectional lead screw 212 and the conveying roller 12 are linked and rotate in the same direction. When the driving roller 11 rotates and conveys the steel plate, the steel plate can drive the conveying roller 12 and the bidirectional lead screw 212 to rotate in the first direction.

[0090] By arranging the bidirectional lead screw 212 and the conveying roller 12 to be linked and rotate in the same direction, when the driving roller 11 and the conveying roller 12 convey the steel plate, the bidirectional lead screw 212 can synchronously drive the limiting assembly to be relatively close to limit the steel plate, thereby improving the synchronization of limiting the steel plate when conveying the steel plate, and there is no need to additionally set up a driving part for driving the bidirectional lead screw 212 to rotate, thereby simplifying the structure and reducing the size and cost of the device.

[0091] Furthermore, the automatic steel plate feeding device further comprises a synchronization structure, which is used to make the bidirectional lead screw 212 and the conveying roller 12 rotate in the same direction in linkage.

[0092] The synchronization structure includes a first wheel 31 fixedly connected to one end of the bidirectional lead screw 212 , a second wheel 32 fixedly connected to one end of the conveying roller 12 , and a synchronization member 33 wound around the first wheel 31 and the second wheel 32 .

[0093] The driving assembly further includes a return gear 215, a horizontal rack 216 and a third elastic member 218. The return gear 215 is fixedly connected to one end of the bidirectional lead screw 212, the return gear 215 is meshedly connected to the horizontal rack 216, the horizontal rack 216 can move in the horizontal direction, and the horizontal rack 216 is elastically connected to the third elastic member 218 oriented horizontally.

[0094] When the driving roller 11 rotates along the first direction and conveys the steel plate, the steel plate pushes the conveying roller 12 to rotate synchronously, and the conveying roller 12 drives the bidirectional lead screw 212 and the return gear 215 to rotate synchronously, and the return gear 215 drives the horizontal rack 216 to move along the first horizontal direction, and the third elastic member 218 elastically deforms so that the bidirectional lead screw 212 drives the limit assembly to move toward each other.

[0095] When the steel plate detaches from the conveying roller 12 and the driving roller 11, the third elastic member 218 can recover and drive the horizontal rack 216 to move along a second horizontal direction opposite to the first horizontal direction and drive the return gear 215 and the bidirectional lead screw 212 to rotate along a second direction opposite to the first direction, so that the bidirectional lead screw 212 drives the limit assembly to move away and reset.

[0096] Thus, when the conveying structure conveys the steel plate, the bidirectional lead screw 212 can rotate synchronously with the conveying roller 12 in the first direction to drive the limiting assembly to move toward each other and limit the steel plate. When the steel plate leaves the conveying mechanism, the bidirectional lead screw 212 can also automatically rotate in the second direction to drive the limiting assembly to move away from each other to reset. The automatic steel plate feeding device does not need to additionally set a driving member for driving the bidirectional lead screw 212 to rotate, simplifies the structure, and can reduce the size and cost of the device.

[0097] Preferably, the first wheel 31 and the second wheel 32 are both sprockets, and the synchronous member 33 is a chain.

[0098] Preferably, when the first wheel 31 and the second wheel 32 are both sprockets, the automatic steel plate feeding device also includes a tensioning structure, which is used to tension the synchronous member 33 to prevent the synchronous member 33 from loosening and avoid affecting the synchronous transmission of the first wheel 31 and the second wheel 32.

[0099] Furthermore, the limiting structure also includes two second support frames 219 that are arranged opposite to each other.

[0100] The two ends of the bidirectional lead screw 212 are rotatably connected to the two second support frames 219. One end of the bidirectional lead screw 212 extending out of the second support frame 219 is fixedly connected to the return gear 215.

[0101] The horizontal rack 216 is disposed on the second support frame 219 so as to be horizontally movable relative to a support frame.

[0102] The horizontal rack 216 can be horizontally movably mounted on the first horizontal guide rod 221 relatively to the first horizontal guide rod 221 fixed on a second support frame 219. The third elastic member 218 is mounted on the first horizontal guide rod 221. The two ends of the third elastic member 218 are respectively fixedly connected to the first horizontal guide rod 221 and the horizontal rack 216.

[0103] When the bidirectional lead screw 212 and the return gear 215 rotate synchronously along the first direction, the return gear 215 drives the horizontal rack 216 to move along the first horizontal direction relative to the first horizontal guide rod 221, and the third elastic member 218 is elastically deformed.

[0104] When the steel plate is separated from the conveying roller 12 and the driving roller 11 , the third elastic member 218 recovers and drives the horizontal rack 216 to move along the second horizontal direction relative to the first horizontal guide rod 221 .

[0105] Specifically, both ends of the first horizontal guide rod 221 are fixedly connected to the second support frame 219 through a mounting frame. The horizontal rack 216 is fixedly connected to the sliding sleeve 222, and the sliding sleeve 222 can be horizontally movably mounted on the first horizontal guide rod 221 relative to the first horizontal guide rod 221. The third elastic member 218 is fixedly connected to the mounting frame and the sliding sleeve 222 respectively.

[0106] Preferably, there are two first horizontal guide rods 221 , and the two first horizontal guide rods 221 are spaced apart from each other to improve the stability of the horizontal rack 216 moving along the first horizontal guide rods 221 .

[0107] Furthermore, the limiting assembly also includes a second horizontal guide rod 220, which is fixedly connected to the C-shaped frame 204. The second horizontal guide rod 220 can be inserted on the second support frame 219 so as to be horizontally movable relative to the second support frame 219 to ensure that the two C-shaped frames 204 move toward or away from each other in the horizontal direction, thereby further ensuring the limiting accuracy of the two limiting assemblies.

[0108] Further, when the first wheel 31 and the second wheel 32 are both sprocket wheels, the tensioning structure includes a fixing plate 41 , a tensioning wheel 42 , a second support rod 43 and a fifth elastic member 44 .

[0109] The fixed plate 41 is fixed on a second support frame 219, the second support rod 43 is horizontally oriented and can be inserted on the fixed plate 41 so as to be horizontally movable relative to the fixed plate 41, a fifth elastic member 44 is sleeved on the second support rod 43, and the two ends of the fifth elastic member 44 are respectively fixedly connected to the fixed plate 41 and the second support rod 43, and a tensioning wheel 42 is set at one end of the second support rod 43, and the tensioning wheel 42 is used to press the synchronous member 33 of the chain.

[0110] When the tensioning wheel 42 presses against the synchronous member 33 of the chain, the tensioning wheel 42 can drive the second support rod 43 to move horizontally relative to the fixed plate 41 to adjust the tensioning degree of the tensioning wheel 42 on the synchronous member 33, and the fifth elastic member 44 can support the tensioning wheel 42.

[0111] Specifically, the other end of the second support rod 43 is provided with a limit platform extending radially outwardly therefrom, and the limit platform can abut against the fixing plate 41 to limit the moving position of the second support plate 43 .

[0112] Preferably, there are multiple second support rods 43 , and the multiple second support rods 43 are arranged at intervals to further improve the accuracy of the horizontal movement of the tensioning wheel 42 relative to the fixing plate 41 .

[0113] Preferably, the limiting structure is located on the output side of the conveying structure, so that the steel plate conveyed by the conveying structure can be sent to the laser cutting machine for cutting after being limited in the up and down directions and lateral directions by the limiting structure, so as to ensure the accuracy of the directional transmission of the steel plate and the cutting accuracy.

[0114] Example 3

[0115] This embodiment provides an automatic steel plate feeding device based on Embodiment 1 and Embodiment 2. The automatic steel plate feeding device further includes a workbench 5.

[0116] The conveying structure and the limiting structure are both arranged on the workbench 5 .

[0117] At least one group of roller assemblies is also arranged on the workbench 5. The roller assembly is located on the output side of the conveying structure. The roller assembly includes multiple rollers 51 extending along the steel plate conveying path. The roller assembly is used to support and assist in conveying the steel plate during the conveying structure conveying the steel plate.

[0118] Preferably, the number of roller assemblies provided is two groups, and the two groups of roller assemblies are arranged at intervals in a direction horizontally perpendicular to the steel plate conveying path to improve the supporting stability of the steel plate.

[0119] It should be noted that the elastic members mentioned above are preferably springs.

[0120] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0121] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0122] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A limiting structure for an automatic steel plate feeding device, characterized in that: Including driving components and limiting components; The driving assembly is arranged above the steel plate feeding path and is orthogonal to the steel plate feeding path, the limiting assemblies are relatively arranged at two ends of the driving assembly and are located below the driving assembly, and the limiting assemblies are used to drive the limiting assemblies to move toward or away from each other; The limiting assembly comprises: a lower limiting wheel (201) and an upper limiting wheel (202) for limiting the steel plate in the upper and lower directions, wherein the upper limiting wheel (202) and the lower limiting wheel (201) are arranged relatively to each other and can be relatively close to or far away from each other; and a side limiting wheel (203) for limiting the steel plate in the lateral direction.

2. The limiting structure for the automatic steel plate feeding device according to claim 1, characterized in that: The drive assembly includes a horizontally oriented bidirectional lead screw (212); The limiting assembly is threadedly connected to both ends of the bidirectional lead screw (212); When the bidirectional lead screw (212) rotates, the bidirectional lead screw (212) can drive the limit assembly to move toward or away from each other.

3. The limiting structure for the automatic steel plate feeding device according to claim 2, characterized in that: The limiting assembly further comprises a C-shaped frame (204), the lower limiting wheel (201) being arranged inside the lower end of the C-shaped frame (204), the upper limiting wheel (202) being arranged inside the upper end of the C-shaped frame (204) so ​​as to be lifted relative to the C-shaped frame (204), and the side limiting wheel (203) being arranged inside the side wall of the C-shaped frame (204).

4. The limiting structure for the automatic steel plate feeding device according to claim 3, characterized in that: Each of the limiting assemblies further comprises a lifting rod (205), an L-shaped rod (206), a hinge rod (207) and a first elastic member (208); The lifting rod (205) is oriented vertically, and the lifting rod (205) can be inserted into the upper end of the C-shaped frame (204) in a lifting manner relative to the C-shaped frame (204), and the upper limit wheel (202) is arranged at one end of the lifting rod (205) extending into the interior of the C-shaped frame (204); The horizontal portion of the L-shaped rod (206) is inserted into the side wall of the C-shaped frame (204) so ​​as to be horizontally movable relative to the C-shaped frame (204), and the side limiting wheel (203) is arranged at one end of the L-shaped rod (206) extending into the interior of the C-shaped frame (204); The two ends of the hinged rod (207) are respectively hinged to the other end of the lifting rod (205) and the other end of the L-shaped rod (206); The first elastic member (208) is horizontally oriented and arranged on the C-shaped frame (204) and is elastically connected to the side limiting wheel (203) to support the side limiting wheel (203).

5. The limiting structure for the automatic steel plate feeding device according to claim 4, characterized in that: Each of the limiting components further comprises a first support rod (209); The first support rod (209) is horizontally oriented and can be inserted into the side wall of the C-shaped frame (204) so ​​as to be horizontally movable relative to the C-shaped frame (204); the first elastic member (208) is sleeved on the first support rod (209); and the two ends of the first elastic member (208) are respectively fixedly connected to the C-shaped frame (204) and the first support rod (209).

6. The limiting structure for the automatic steel plate feeding device according to claim 2, characterized in that: The bidirectional lead screw (212) comprises threaded sections at two ends and an optical axis in the middle; The driving assembly further comprises two threaded sleeves (210) and two second elastic members (211), and the two threaded sleeves (210), the two second elastic members (211) and the two limit assemblies correspond to each other one by one; The threaded sleeve (210) is threadedly connected to the threaded section of the bidirectional lead screw (212) and connected to the C-shaped frame (204); The second elastic member (211) is elastically connected to the threaded sleeve (210) in a horizontal direction.

7. The limiting structure for the automatic steel plate feeding device according to claim 6, characterized in that: The driving assembly further comprises a guide rod (213) and two guide members (214); The guide rod (213) is parallel to the bidirectional lead screw (212); The two guide members (214) are both L-shaped members, and the vertical portions of the two guide members (214) can be sleeved on both ends of the guide rod (213) in a horizontally movable manner along the guide rod (213), and the guide members (214) are fixedly connected to the threaded sleeve (210); The C-shaped frame (204) is connected to the C-shaped frame (204) so ​​as to be horizontally movable relative to the guide member (214); The second elastic member (211) is sleeved on the horizontal portion of the guide member (214), and two ends of the second elastic member (211) are respectively fixedly connected to the guide member (214) and the C-shaped frame (204).

8. An automatic steel plate feeding device, comprising the limiting structure for the automatic steel plate feeding device according to any one of claims 2 to 7, characterized in that: It also includes a conveying structure, which includes a driving roller (11) and a conveying roller (12); the conveying roller (12) can be arranged above the driving roller (11) so as to be raised and lowered relative to the driving roller (11), and the conveying roller (12) and the driving roller (11) can clamp and convey the steel plate.

9. The automatic steel plate feeding device according to claim 8, characterized in that: The bidirectional lead screw (212) and the conveying roller (12) are linked and rotate in the same direction; when the driving roller (11) rotates and conveys the steel plate, the steel plate can drive the conveying roller (12) and the bidirectional lead screw (212) to rotate in a first direction.

10. The automatic steel plate feeding device according to claim 9, characterized in that: One end of the bidirectional lead screw (212) is fixedly connected to the first wheel (31), and one end of the conveying roller (12) is fixedly connected to the second wheel (32); a synchronizing member (33) is wound around the first wheel (31) and the second wheel (32), so that the bidirectional lead screw (212) and the conveying roller (12) are linked and rotate in the same direction; One end of the bidirectional lead screw (212) is also fixedly connected to a return gear (215), and the return gear (215) is meshedly connected to a horizontal rack (216). The horizontal rack (216) can move in a horizontal direction, and the horizontal rack (216) is elastically connected to a horizontally oriented third elastic member (218).

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