Metal strip bending device

Abstract

The utility model provides a metal strip bending device. The metal strip bending device comprises a fixed plate and a movable plate, the movable plate is rotationally connected with the fixed plate, the upper side of the fixed plate is provided with a bearing face, the end, adjacent to the fixed plate, of the movable plate is provided with a bearing end face, and the edge of the front side of the bearing face is connected with the first edge of the bearing end face in an adjacent mode; the blocking piece is provided with a limiting part, the limiting part extends to the upper side of the bearing surface of the fixing plate, and the edge of the front side of the bearing surface and the limiting part are arranged at an interval; the pressing piece is arranged on the upper side of the fixing plate, the front portion of the pressing piece is provided with a positioning inclined face, the positioning inclined face intersects with the bottom face of the pressing piece at the front end of the pressing piece, and the front end of the pressing piece extends to the edge of the front side of the bearing face. The metal strip bending device is used for bending the connecting part on the metal strip, and has the advantages of being high in machining efficiency and high in consistency of the bent part.

Description

Technical Field

[0001] This application relates to the field of metal mask technology used in OLED panel production, and more particularly to a metal strip bending device. Background Technology

[0002] OLED display panels have advantages such as self-illumination, vibrant colors, low power consumption, and wide viewing angles, and are widely used in electronic products. In the OLED display panel manufacturing process, the metal mask plays an extremely important role.

[0003] As users of electronic products increasingly demand larger screen-to-body ratios for display panels, such as those with attached dimensions... Figure 1 The blind-hole display panels shown are increasingly favored by users of electronic products. For these blind-hole display panels, during the vapor deposition process, "blind hole areas" that are not deposited with organic materials need to be reserved on the substrate, ultimately forming... Figure 1 The camera hole 11 is located near the upper end of the middle screen body 1. Therefore, a metal mask plate with a shielding part provided in the pattern area is required.

[0004] For example, the prior art discloses a metal mask and a mask assembly (Publication No.: CN117070889A; Publication Date: November 17, 2023), wherein the metal mask includes: metal strips, a plurality of first metal strips and a plurality of second metal strips arranged parallel to each other, the first metal strips and the second metal strips intersecting perpendicularly and joining at the intersection to form a mask mesh with at least one opening; and a blocking portion and a connecting portion, wherein the blocking portion is provided in the opening, and the blocking portion is connected to the metal strip at the edge of the opening through the connecting portion; the portion of the connecting portion located between the blocking portion and the metal strip connected to the blocking portion is bent into a groove shape toward one side in the thickness direction of the mask mesh, and forms an empty area between the blocking portion and the metal strip connected to the blocking portion.

[0005] In one method for preparing the aforementioned metal mask, it is necessary to process the attached... Figure 2 The metal strip 2 shown is connected to the shielding part 22 by multiple bending steps at the connection part 21 to obtain the target bending state.

[0006] In practice, it is difficult to achieve high consistency by bending by hand alone. There are deviations in the relative distance between the obstruction part on the bent metal strip and the main body of the metal strip, which will ultimately affect the positional accuracy of the aforementioned "blind hole area".

[0007] In view of this, there is an urgent need to design a bending tool for bending the connecting parts of the aforementioned metal strips. Utility Model Content

[0008] In order to solve or improve the above technical problems existing in the prior art, the present application provides a metal strip bending device used for bending the connecting part of the metal strip, and at least used for implementing one of the multiple bending steps of the connecting part bending. The metal strip bending device comprises:

[0009] a fixed plate and a movable plate, the movable plate being rotationally connected with the fixed plate,

[0010] the fixed plate having a bearing surface on the upper side, the movable plate having a bearing end surface on one end adjacent to the fixed plate, the front side edge of the bearing surface being adjacent to the first edge of the bearing end surface; and

[0011] a blocking piece having a limiting part extending to the upper side of the bearing surface of the fixed plate, the front side edge of the bearing surface being spaced apart from the limiting part; and

[0012] a pressing piece arranged on the upper side of the fixed plate, the front part of the pressing piece having a positioning inclined surface, the positioning inclined surface and the bottom surface of the pressing piece intersecting at the front end of the pressing piece, the front end of the pressing piece extending to the front side edge of the bearing surface.

[0013] When the metal strip is processed, the metal strip is first placed on the fixed plate, a part of the metal strip and the connecting part to be bent on the metal strip is supported by the bearing surface of the fixed plate, and another part of the connecting part exceeding the bearing surface is supported by the bearing end surface of the movable plate. The edge of the metal strip on the side opposite to the connecting part is blocked by the blocking piece, so as to limit the placement position of the metal strip in the first direction. When each connecting part of the metal strip is bent, the metal strip is positioned and placed at the position, so as to ensure that the bending positions of the connecting parts bent each time are consistent. Then, the pressing piece is pressed on the metal strip, and the part of the connecting part of the metal strip above the bearing surface and the part of the body of the metal strip connected with the connecting part are pressed. Then, the connecting part of the metal strip is bent to a certain angle by turning up the movable plate.

[0014] In the technical solution, the movable plate can be turned up to any position before the bearing end surface of the movable plate reaches the positioning inclined surface of the pressing piece. Therefore, the connecting part of the metal strip can obtain any bending angle in the turning-up range.

[0015] In the technical solution, the positioning inclined surface of the pressing piece positions the limit position of the bending, that is, when the connecting part of the metal strip on the movable plate abuts against the positioning inclined surface of the pressing piece, the movable plate cannot be continuously turned up in the same direction, but can only be turned up in the opposite direction. Here, when the target bending angle is consistent with the included angle between the positioning inclined surface of the pressing piece and the bottom surface of the pressing piece, the precise bending angle can be easily obtained by means of the positioning inclined surface.

[0016] Further, the carrying end surface of the movable plate is provided with a groove, which extends along the thickness direction of the movable plate to the two side surfaces of the movable plate.

[0017] In the technical solution, the groove is used to clamp the pre-bent connecting part on the metal strip. By providing the groove, on one hand, the metal strip can be quickly positioned and placed in the second direction, and on the other hand, the connecting part in the bending process can be prevented from deviating to one side in the extension direction of the carrying end surface.

[0018] Further, the pressing piece is provided with a clearance groove, which extends along the first direction to the upper edge of the positioning slope.

[0019] In the technical solution, the clearance groove gives the shielding part at the distal end of the bent connecting part of the metal strip a position, so as to avoid the shielding part and the part connecting part connected thereto from being deformed due to obstruction in the bending process.

[0020] Further, the carrying end surface of the movable plate is provided with a groove, which extends along the thickness direction of the movable plate to the two side surfaces of the movable plate; and

[0021] The pressing piece is provided with a clearance groove, which extends along the first direction to the upper edge of the positioning slope.

[0022] The clearance groove is aligned with the groove in the first direction.

[0023] In the technical solution, by providing the clearance groove and the groove aligned in the first direction, the metal strip can be more easily positioned and placed, and the rotation speed of the movable plate does not have to be intentionally slowed down in the bending process due to the fear that the shielding part of the metal strip and the part connecting part connected thereto will be deformed. Therefore, the bending processing efficiency can be improved to a certain extent.

[0024] Further, the included angle between the positioning slope and the bottom surface of the pressing piece at the front end of the pressing piece is selected from [15°, 90°). Optionally, for example, the included angle between the positioning slope at the front end of the pressing piece and the bottom surface of the pressing piece can be 20°, 30°, 45°, 60°, 70°, or 80°, etc.

[0025] In the technical solution, when the included angle between the positioning slope and the bottom surface of the pressing piece is selected to be different angles, it can be suitable for accurately positioning different bending angles.

[0026] Further, the pressing piece and the fixed plate are connected by at least one set of floating mechanism,

[0027] The floating mechanism includes a pin rod, a spring, and a snap spring,

[0028] The pressing piece, the fixed plate and the spring are sequentially sleeved on the middle part of the pin rod, and the clamping spring is clamped on the end of the pin rod, and the clamping spring limits the pressing piece, the fixed plate and the spring on the pin rod.

[0029] When the metal strip is pre-clamped, the pressing piece is lifted to separate the pressing piece from the bearing surface on the upper side of the fixed plate, at this time, the spring at the bottom of the fixed plate is compressed by the clamping spring and the fixed plate, and the space generated by the separation of the pressing piece and the fixed plate can be used for the metal strip to enter and be placed on the bearing surface on the upper side of the fixed plate, after adjusting the placement position of the metal strip, the pressing piece is lowered, at this time, the spring rebounds to tightly press a part of the metal strip on the bearing surface.

[0030] In the technical solution, the pressing piece can easily return to its original position after being lifted due to the limitation of the floating mechanism, therefore, the relative position of the pressing piece on the bearing surface of the fixed plate does not change when the connecting part of the metal strip is bent each time, which can ensure the consistency of the height of the bent connecting part of the metal strip. Moreover, by setting the floating mechanism, the metal strip can be quickly assembled and disassembled, and reliable pressing force can be provided to the metal strip to avoid its movement between the pressing piece and the fixed plate.

[0031] Further, the adjusting mechanism comprises:

[0032] The first mounting plate and the second mounting plate connected to the fixed plate; and

[0033] The sliding rod and the sliding block, the sliding rod is connected between the first mounting plate and the second mounting plate, and extends in the first direction,

[0034] The sliding block is sleeved on the middle part of the sliding rod and can slide along the sliding rod; and

[0035] The connecting plate having at least two engaging parts, the sliding block is connected with one of the engaging parts, and the stop piece is fixed on the one of the engaging parts or the sliding block; and

[0036] The adjusting screw rod extending in the first direction, the first mounting plate is provided with a threaded hole extending in the first direction and matched with the thread of the adjusting screw rod, the adjusting screw rod is installed in the threaded hole, and the front end of the adjusting screw rod is connected with the other engaging part of the connecting plate after passing through the threaded hole on the first mounting plate.

[0037] When the metal strip is pre-clamped, the adjusting screw rod is rotated to drive the connecting plate to move along the extension direction of the sliding rod, thereby driving the stop piece to move in the direction, so as to adjust the position of the stop piece and obtain a suitable distance between the limiting part of the stop piece and the front side edge of the bearing surface.

[0038] The technical scheme has the following beneficial effects: the adjusting mechanism is arranged, the area from the limiting part of the stop piece to the front side edge of the bearing surface can adapt to the placement of metal strips of different specifications, and therefore the metal strip bending device can be used for the bending processing of metal strips of different specifications.

[0039] Further, the adjusting mechanism has two groups of sliding rods and sliding blocks, and is distributed on both sides of the adjusting screw in the second direction,

[0040] The connecting plate has a first joint part, a second joint part and a third joint part, and the second joint part and the third joint part are distributed on both sides of the first joint part in the second direction, wherein the first joint part is connected with the adjusting screw, and the second joint part and the third joint part are connected with the sliding blocks on the two sliding rods respectively,

[0041] The stop piece has two, and is distributed in the second direction, and the two stop pieces are connected with the second joint part and the third joint part respectively, or the two stop pieces are connected with the two sliding blocks respectively.

[0042] In the technical scheme, two groups of sliding rods and sliding blocks are arranged to bear two stop pieces, and the adjusting screw in the adjusting mechanism can be rotated to control the synchronous movement of the two stop pieces, so that the positioning positions of the two stop pieces are consistent, and the positioning of the metal strip is more accurate.

[0043] Further, the stop piece and the adjusting mechanism are arranged below the fixed plate, the fixed plate is provided with a stop piece passage, and the limiting part of the stop piece extends upwards through the stop piece passage to the bearing surface of the fixed plate.

[0044] In the technical scheme, the stop piece and the adjusting mechanism are arranged below the fixed plate, which can reduce the installation of parts on the upper side of the fixed plate, and further can leave sufficient space on the upper side of the fixed plate, facilitating the loading and unloading of the metal strip.

[0045] Further, the metal strip bending device further comprises a base and a plurality of columns, and the columns are vertically arranged on the upper side of the base,

[0046] The fixed plate is arranged on the top of the column,

[0047] The stop piece and the adjusting mechanism are arranged in the area between the columns.

[0048] In the technical scheme, the base and the column are arranged below the fixed plate to raise the area below the fixed plate, and the stop piece and the adjusting mechanism are installed in the area raised by the column, so that the installation space around the fixed plate is more reasonably utilized.

[0049] Furthermore, additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is a structural schematic diagram of an existing blind hole screen;

[0051] Figure 2 is a structural schematic diagram of a metal strip used to make a metal mask plate suitable for producing a blind hole screen;

[0052] Figure 3 is a structural schematic diagram of a metal strip bending device in the embodiments of the present application;

[0053] Figure 4 is a schematic diagram of the assembly state between the metal strip placed on the bending device and the fixed plate, movable plate, blocking piece, and pressing piece in the embodiments of the present application;

[0054] Figure 5 is an exploded view of the assembly relationship between the fixed plate, turnover plate, pressing plate, and floating mechanism thereof in the metal strip bending device in the embodiments of the present application;

[0055] Figure 6 is a structural schematic diagram of the movable plate in the embodiments of the present application;

[0056] Figure 7 is a structural schematic diagram of the pressing piece in the embodiments of the present application;

[0057] Figure 8 is an exploded view of the assembly relationship between the blocking piece and the adjusting mechanism thereof in the embodiments of the present application;

[0058] Figure 9 is a structural schematic diagram of the connecting plate in the embodiments of the present application;

[0059] Figure 10 is a structural schematic diagram of the metal strip bending device in the embodiments of the present application;

[0060] Figure 11 is an exploded view of the assembly relationship between the fixed plate, base, and stand of the metal strip bending device in the embodiments of the present application;

[0061] Annotations in the figure:

[0062] 1: screen body; 11: camera hole;

[0063] 2: metal strip; 21: connecting portion; 22: shielding portion;

[0064] 3: metal strip bending device;

[0065] 31: fixed plate; 311: bearing surface; 312: stopper passage;

[0066] 32: movable plate; 321: bearing end surface; 3211: first edge; 322: groove; 323: third part;

[0067] 33: hinge; 331: pin shaft; 332: first rotating part; 333: second rotating part;

[0068] 34: stopper; 341: limiting part;

[0069] 35: adjusting mechanism; 351: first mounting plate; 352: second mounting plate; 353: sliding rod; 354: sliding block; 355: connecting plate; 3551: first joint part; 3552: second joint part; 3553: third joint part; 3554: embedding groove; 356: adjusting screw; 357: limiting nut;

[0070] 36: pressing piece; 361: front end of pressing piece; 362: positioning inclined surface; 363: bottom surface of pressing piece; 364: clearance groove;

[0071] 37: floating mechanism; 371: pin rod; 372: spring; 373: circlip;

[0072] 38: base; 39: stand column. DETAILED DESCRIPTION

[0073] The present application will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the application are shown. The application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0074] It should be noted that, in the present application, all directional indications, such as up, down, front, back, left, right, etc., are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0075] In addition, in the present application, as described in relation to "connection", "fixed connection" and the like, it should be understood broadly, for example, it can be directly connected, or indirectly connected through an intermediate medium; it can be a non-detachable fixed connection (such as welding, riveting, etc.), or a detachable fixed connection (such as bolt connection), or integrated. For those skilled in the art, the specific meaning of the above terms in the present application should be understood according to the specific circumstances.

[0076] In addition, in the present application, the expression "adjacent" is intended to mean that the two objects indicated are proximate, close or near in distance, or the distance between them is very small, for example, the distance tends to zero.

[0077] In addition, in the present application, as described in relation to "first", "second" and the like, only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features.

[0078] In addition, in the present application, as described in relation to a component having "one end", "the other end", "one end" and "the other end" can be two ends of a workpiece in the length direction, such as a long strip, a rod and the like; can also be used only to distinguish two different positions on the workpiece, and should not be limitedly understood as the workpiece must have similar shapes such as long strip, rod and the like.

[0079] In addition, the technical solutions of the various embodiments of the present application can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the scope of protection claimed in the present application.

[0080] The same reference signs throughout the text denote the same objects.

[0081] In view of the actual situation of the prior art, considering the various deficiencies in the prior art, without wishing to be bound by any theory, the embodiments of the present application provide a metal strip bending device.

[0082] Referring to the drawings shown in the drawings Figure 3 The metal strip bending device 3 provided by the present application comprises a fixed plate 31, a movable plate 32, a blocking piece 34 and a pressing piece 36; wherein,

[0083] The movable plate 32 is rotatably connected with the fixed plate 31, that is, the movable plate 32 can rotate or overturn relative to the fixed plate 31, the fixed plate 31 has a bearing surface 311 on the upper side, the movable plate 32 has a bearing end surface 321 on one end adjacent to the fixed plate 31, and the front side edge of the bearing surface 311 is adjacent to the first edge 3211 of the bearing end surface 321;

[0084] The blocking piece 34 has a limiting part 341, which can be a part of the blocking piece 34 extending outward, or another part engaged on the blocking piece 34, the limiting part 341 extends to the upper side of the bearing surface 311 of the fixed plate 31, and the front side edge of the bearing surface 311 is spaced apart from the limiting part 341, and the spacing area is used for placing the metal strip to be processed;

[0085] The pressure member 36 is disposed on the upper side of the fixed plate 31. The front part of the pressure member 36 has a positioning slope 362. The positioning slope 362 intersects with the bottom surface 363 of the pressure member at the front end 361 of the pressure member. The front end 361 of the pressure member extends to the front edge of the bearing surface 311.

[0086] The processing of metal strips includes the following steps:

[0087] Step 1. Place the metal strip to be processed at the designated position on the fixing plate 31;

[0088] See appendix Figure 4 As shown, when placing the metal strip 2, the metal strip 2 is placed along the second direction, and the connecting part 21 on the metal strip 2 extends along the first direction. The metal strip 2 and a part of the connecting part 21 that is to be bent are placed on the bearing surface 311 of the fixing plate 31 and supported by the fixing plate 311. The other part of the connecting part 21 extends forward beyond the bearing surface 311 and is supported by the bearing end face 321 of the movable plate 32.

[0089] Furthermore, the side of the metal strip 2 facing away from its connecting portion 21 in the first direction is pressed against the stop 34, and the stop 34 is used to block the edge of the metal strip 2 on that side, thereby restricting the placement position of the metal strip 2 in the first direction.

[0090] At this time, the part of the connecting part 21 that is to be bent, located between the bearing surface 311 and the bearing end surface 321, is the bending part.

[0091] Referring to the aforementioned embodiments, when bending each connecting portion 21 of the metal strip 2, the metal strip 21 is positioned at the same location as described above, which ensures that the bending portion of the connecting portion 21 is consistent each time it is bent.

[0092] Step 2. Press the clamping element 36 onto the metal strip 2;

[0093] See appendix Figure 4 As shown, the portion of the connecting part 21 of the metal strip 2 to be bent, which is located above the bearing surface 311, is pressed by the pressure member 36, as well as part of the body of the metal strip 2 connected to the connecting part 21.

[0094] In addition, the front end 361 of the pressing member is aligned with the front edge of the bearing surface 311 of the fixing plate 31.

[0095] Step 3. Flip the movable plate 32 upwards and bend the connecting part 21 of the metal strip 2 at a certain angle;

[0096] In step 3, the movable plate 32 can be flipped to any position before its bearing end face 321 reaches the positioning slope 361 of the pressure member 36. Therefore, the connecting part 21 of the metal strip 2 can obtain any bending angle within the flipping range.

[0097] Furthermore, the positioning slope 361 of the pressure member 36 positions the limit position of bending, that is: when the movable plate 32 is flipped so that the connecting part 21 of the metal strip 2 on it is tightly attached to the positioning slope 361 of the pressure member 36, the movable plate 32 cannot continue to be flipped in the same direction, but can only be flipped in the opposite direction.

[0098] Here, when the target bending angle is consistent with the angle between the positioning inclined surface 361 of the pressure piece 36 and the bottom surface 363 of the pressure piece, the accurate bending angle can be easily obtained with the help of the positioning inclined surface 361.

[0099] After one of the connecting parts 21 of the metal strip 2 is bent, the movable plate 32 is flipped back to its initial position, and the pressure piece 36 is lifted. Then the metal strip 2 is moved, and the aforementioned steps 1 to 3 are repeated to bend the next connecting part until all the connecting parts 21 on the metal strip 2 that need to be bent are completed.

[0100] Compared with the prior art, the aforementioned embodiments can not only significantly improve the consistency of bending of the connecting parts on the metal strip, but also improve the bending processing efficiency to a certain extent.

[0101] In one embodiment, the rotatable connection between the movable plate 32 and the fixed plate 31 can be achieved by setting a shaft. The corresponding parts of the movable plate 32 and the fixed plate 31 are provided with shaft holes, and the shaft holes are sleeved on the shaft, thereby forming a hinged structure that can rotate relative to each other.

[0102] In another embodiment, see Appendix Figure 3 As shown, the fixed plate 31 and the movable plate 32 are connected by at least one hinge 33. See Appendix Figure 5 As shown, the hinge 33 includes a pin 331, a first rotating part 332 and a second rotating part 333. The first rotating part 332 and the second rotating part 333 are connected by the pin 331. The first rotating part 332 and the second rotating part 333 can rotate freely with the pin 331 as the pivot. The fixed plate 31 is connected to the first rotating part 332 of the hinge 33, and the movable plate 32 is connected to the second rotating part 333 of the hinge 33. The movable plate 32 can rotate relative to the fixed plate 31 with the pin 331 as the pivot.

[0103] Further, see Appendix Figure 5As shown in FIG. 1, the fixed plate 31 is provided with a mounting groove for mounting the first rotating part 332, and the first rotating part 332 is mounted in the mounting groove, so that the first rotating part 332 does not protrude from the upper side of the fixed plate 31, and the metal strip is prevented from being bent by the first rotating part 332.

[0104] In a typical embodiment, referring to FIGS. 1 to 4, Figure 4 and FIGS. 5 to 8, Figure 6 As shown in FIG. 2, the bearing end surface 321 of the movable plate 32 is provided with a groove 322 extending through the two side surfaces of the movable plate 32 along the thickness direction of the movable plate 32. Figure 4 As shown in the state shown in FIG. 2, the extension direction of the connecting part 21 of the metal strip 2 is consistent with the extension direction of the groove 322, and both extend along the first direction.

[0105] As shown in FIG. 2, the movable plate 32 is further provided with a clearance groove 324 extending along the first direction and located on the bearing end surface 321. Figure 4 and FIG. 5, Figure 7 As shown in FIG. 5, the pressing part 36 is further provided with a clearance groove 364 extending along the first direction and located on the upper edge of the positioning inclined surface 362.

[0106] In addition, the aforementioned clearance groove 364 is aligned with the groove 322 in the first direction.

[0107] In the aforementioned embodiment, the groove 322 is used to clamp the pre-bent connecting part 21 on the metal strip 2. In the aforementioned step 1, when the metal strip 2 is placed, the part of the pre-bent connecting part 21 of the metal strip 2 that protrudes from the bearing surface 311 of the fixed plate 31 is aligned and clamped into the groove 322.

[0108] By providing the groove 322, on the one hand, it is helpful to quickly position and place the metal strip 2 in the second direction, and on the other hand, it can prevent the connecting part 21 from deviating to one side in the extension direction of the bearing end surface 321 during the bending process.

[0109] In addition, the clearance groove 364 gives the shielding part 22 at the distal end of the bent connecting part 21 of the metal strip 2 a position, so as to prevent the shielding part 22 and the part of the connecting part 21 connected thereto from being deformed due to obstruction during the bending process.

[0110] By providing the clearance groove 364 and the groove 322 aligned in the first direction, it is easier to position and place the metal strip 2 to be bent, and it is not necessary to intentionally slow down the flipping speed of the movable plate 32 during the bending process for fear that the shielding part 22 of the metal strip 2 and the part of the connecting part 21 connected thereto will be deformed. Therefore, the bending processing efficiency can be improved to a certain extent.

[0111] In another embodiment, only one of the aforementioned clearance groove 364 and the groove 322 in the aforementioned embodiment can be provided.

[0112] In an embodiment, the included angle between the positioning slope 362 of the pressing piece 36 and the bottom surface 363 of the pressing piece at the front end 361 of the pressing piece (i.e., the inclination angle of the positioning slope 362 relative to the bottom surface 363 of the pressing piece) is an acute angle, and preferably, the degree of the acute angle is in the range of [15°, 90°), and the degree of the included angle can be freely selected within the range according to actual needs.

[0113] For example, the included angle between the positioning slope 362 of the front end of the pressing piece 36 and the bottom surface 363 of the pressing piece can be 20°, 30°, 45°, 60°, 70°, or 80°, etc.

[0114] In the implementation process, according to the target bending angle of the connecting part 21 of the metal strip 2 to be bent, the aforementioned included angle is selected to have a degree consistent with the target bending angle, so that the positioning slope 361 can easily obtain a precise bending angle.

[0115] It should be understood that when the included angle between the positioning slope 362 and the bottom surface 363 of the pressing piece is selected to be different angles, it can be applied to precisely position different bending angles.

[0116] In one embodiment, referring to FIG. 3, the metal strip bending device 3 of the present application is also provided with a floating mechanism 37, and the pressing piece 36 and the fixed plate 31 are connected through at least one set of floating mechanisms 37. Figure 3

[0117] Referring to FIG. 4, the floating mechanism 37 includes a pin rod 371, a spring 372, and a snap spring 373. The pressing piece 36 and the fixed plate 31 are both provided with a hole for installing the pin rod 371, and the pin rod 371 is sequentially inserted into the aforementioned hole of the pressing piece 36, the aforementioned hole of the fixed plate 31, and the spring 372, so that the pressing piece 36, the fixed plate 31, and the spring 372 are sequentially sleeved on the middle part of the pin rod 371, and the snap spring 373 is clamped on the end of the pin rod 371, thereby limiting the pressing piece 36, the fixed plate 31, and the spring 372 on the pin rod 371, so as to connect the pressing piece 36 and the fixed plate 31 by using the pin rod 371. Figure 5 When processing the metal strip 2 as shown in FIG. 2, the operation steps of placing the metal strip 2 to be processed at a specified position on the fixed plate 31 include:

[0118] Figure 2 ⅰ. Lifting the pressing piece 36;

[0119] After lifting the pressing piece 36, the pressing piece 36 is separated from the bearing surface 311 on the upper side of the fixed plate 31, and at this time, the spring 372 at the bottom of the fixed plate 31 is subjected to the extrusion of the snap spring 373 and the fixed plate 31 and is deformed by contraction;

[0120] ​​​

[0121] ii. Insert the metal strip 2 through the space created by the separation of the pressure member 36 and the fixing plate 31, and place it on the bearing surface 311 on the upper side of the fixing plate 31;

[0122] iii. After adjusting the position of metal strip 2, lower the pressure piece 36;

[0123] At this moment, the spring 372 rebounds, causing the pressure member 36 to press tightly against a portion of the metal strip 2 on the bearing surface 311.

[0124] In the aforementioned embodiment, due to the limitation of the floating mechanism 37, the pressure member 36 can easily return to its original position after being lifted. Therefore, each time the connecting part 21 of the metal strip 2 is bent, the relative position of the pressure member 36 on the bearing surface 311 of the fixed plate 31 does not change, which can ensure that the bent connecting part 21 on the metal strip 2 has a high degree of consistency.

[0125] Furthermore, by setting the floating mechanism 37, the metal strip 2 can be quickly loaded and unloaded, and a reliable clamping force can be provided to the metal strip 2 to prevent it from moving between the pressure member 36 and the fixed plate 31.

[0126] See appendix Figure 3 As shown, the metal strip bending device 3 of this application is also provided with an adjustment mechanism 35. See Appendix Figure 8 As shown, the adjustment mechanism 35 includes: a first mounting plate 351 and a second mounting plate 352 connected to the fixed plate 31, a slide rod 353 and a slider 354, a connecting plate 355 having at least two joints, and an adjustment screw 356 extending along a first direction.

[0127] The slide bar 353 is connected between the first mounting plate 351 and the second mounting plate 352 and extends along the first direction. The slider 354 is sleeved on the middle part of the slide bar 353 and can slide along the slide bar 353.

[0128] One of the joints of the connecting plate 355 is connected to the slider 354, and the stop 34 is fixed to one of the joints of the connecting plate 355.

[0129] The first mounting plate 351 is provided with a threaded hole extending in a first direction. The threaded hole is adapted to the thread of the adjusting screw. The adjusting screw 356 is installed in the threaded hole on the first mounting plate 351. The front end of the adjusting screw 356 is connected to another joint of the connecting plate 355.

[0130] Processing as per attached Figure 2The step of adjusting the position of the stopper 34 is also included in the step of placing the metal strip 2 shown in the foregoing embodiment. Specifically, the adjusting screw 356 is rotated to drive the stopper 34 to move in the first direction until the stopper 34 is moved to the appropriate position, and then the rotation of the adjusting screw 356 is stopped. Then the step of placing the metal strip 2 is performed.

[0131] In the foregoing embodiment, by providing the adjusting mechanism 35, the appropriate distance between the limiting portion 341 of the stopper 34 and the front side edge of the bearing surface 311 can be obtained, and the area between the limiting portion 341 of the stopper 34 and the front side edge of the bearing surface 311 can be adjusted to adapt to the placement of metal strips 2 of different specifications. Therefore, the foregoing bending processing can be performed on metal strips 2 of different specifications.

[0132] In addition, when the metal strip 2 is processed, the bending of different parts on the same connecting portion 21 of the metal strip 2 can also be realized by adjusting the placement position of the metal strip 2.

[0133] In one embodiment, referring to the accompanying drawings, Figure 8 As shown in the foregoing embodiment, the adjusting mechanism 35 has two sets of the slide rod 353 and the slide block 354, and is distributed on both sides of the adjusting screw 356 in the second direction.

[0134] The connecting plate 355 has three joint portions, i.e., the first joint portion 3551, the second joint portion 3552, and the third joint portion 3553, and the second joint portion 3552 and the third joint portion 3553 are distributed on both sides of the first joint portion 3551 in the second direction, wherein the first joint portion 3551 is connected with the adjusting screw 356, and the second joint portion 3552 and the third joint portion 3553 are connected with the slide blocks 354 on the two slide rods 353, respectively.

[0135] And has two stoppers 34, which are distributed in the second direction and are connected with the second joint portion 3552 and the third joint portion 3553, respectively. The limiting portions 341 on the two stoppers 34 are distributed on both sides of the pressing piece 36 in the second direction.

[0136] In the foregoing embodiment, by rotating the adjusting screw 356 in the adjusting mechanism 35, the two stoppers 34 can be simultaneously controlled to move synchronously, and when the metal strip 2 is pre-clamped, the consistency of the positioning positions of the two stoppers 34 is high, and the positioning of the metal strip 2 is more accurate.

[0137] Optionally, referring to the accompanying drawings, Figure 9As shown, the connecting plate 355 has a groove 3554 on its joint where it connects to the slider 354, and at least a portion of the slider 354 is fitted into the groove 3554. This reduces the thickness of the slider 354, connecting plate 355, and stop 34 in the first direction after they are joined together, and increases the movement space of the stop 353 on the slide rod 353 without changing its length, thereby increasing the adjustment range of the stop 34 to a certain extent.

[0138] Optional, see appendix Figure 8 As shown, at least two limiting nuts 357 are installed at the front end of the adjusting screw 356, and the stop 34 also has a threaded hole. The front end of the adjusting screw 356 is installed in the threaded hole of the stop 34, and the limiting nuts 357 are arranged on both sides of the stop 34 to restrict the stop 34 to the adjusting screw 356.

[0139] Optional, see appendix Figure 8 As shown, the connecting plate 355 has a joint that connects to the slider 354, and the stop 34 has a through hole for mounting the slide rod 353, which is installed in the through hole.

[0140] Optionally, the stop 34 is fixed to the surface of the slider 354, rather than to the surface of one of the joints of the connecting plate 355. For example, see Appendix Figure 8 As shown, the two stops 34 are connected to the two sliders 354 respectively.

[0141] In one embodiment, the stop 34 and the adjusting mechanism 35 are disposed below the fixed plate 31, see [reference]. Figure 3 As shown, the fixing plate 31 is provided with a stop channel 312, and the limiting part 341 of the stop 34 extends upward through the stop channel 312 to a height above the bearing surface 311 of the fixing plate 31.

[0142] In the aforementioned embodiments, by placing the stop 34 and its adjustment mechanism 35 below the fixed plate 31, the number of components installed on the upper side of the fixed plate 31 can be reduced, thereby creating a sufficient open area on the upper side of the fixed plate 31 to facilitate the loading and unloading of the metal strip 2.

[0143] In the embodiments, see Appendix Figure 10 As shown, the first mounting plate 351 and the second mounting plate 352 are respectively mounted on the lower front and rear sides of the fixed plate 31 to accommodate the installation of the adjustment mechanism 35 located below the fixed plate 31.

[0144] In one embodiment, see Appendix Figure 3 and attached Figure 11As shown in the drawings, the metal strip bending device 3 of the present application further comprises a base 38 and a plurality of vertical columns 39 vertically arranged on the upper side of the base 38, the fixing plate 31 is arranged on the top of the vertical columns 39, and the stopper 34 and the adjusting mechanism 35 are arranged in the region between the vertical columns 39.

[0145] In the foregoing embodiment, by arranging the base 38 and the vertical columns 39 below the fixing plate 31, the region below the fixing plate 31 is made overhead, and the stopper 34 and the adjusting mechanism 35 are arranged in the overhead region, so that the installation space around the fixing plate 31 is more reasonably utilized.

[0146] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A metal strip bending device, characterized in that, The utility model relates to a kind of adjustable support, including: Fixed plate and movable plate, movable plate is rotatably connected between fixed plate, Fixed plate upper side has bearing surface, movable plate and fixed plate one end of being adjacent has bearing end surface, the front side edge of the bearing surface and the first edge of the bearing end surface are adjacent; And Stop piece, which has a limiting part, extends to the upper side of the bearing surface of the fixed plate, and the front side edge of the bearing surface and the limiting part are spaced apart; And Pressing piece, provided on the upper side of the fixed plate, the front part of the pressing piece has a positioning slope, the positioning slope intersects with the bottom surface of the pressing piece at the front end of the pressing piece, and the front end of the pressing piece extends to the front side edge of the bearing surface.

2. The metal strip bending apparatus of claim 1, wherein The bearing end surface of the movable plate is provided with a groove, which extends through the two side surfaces of the movable plate along the thickness direction of the movable plate.

3. The metal strip bending device according to claim 1, characterized in that The pressing piece is provided with a clearance slot, which extends to the upper edge of the positioning slope along the first direction.

4. The metal strip bending apparatus of claim 1, wherein The bearing end surface of the movable plate is provided with a groove, which extends through the two side surfaces of the movable plate along the thickness direction of the movable plate;And The pressing piece is provided with a clearance slot, which extends to the upper edge of the positioning slope along the first direction; The clearance slot is aligned with the groove in the first direction.

5. The metal strip bending apparatus of claim 1, wherein The angle between the positioning slope and the bottom surface of the pressing piece at the front end of the pressing piece is selected from [15°, 90°).

6. The metal strip bending device according to any one of claims 1 to 5, characterized in that The pressing piece and the fixed plate are connected by at least one set of floating mechanism, The floating mechanism includes a pin, a spring and a snap spring, The pressing piece, the fixed plate and the spring are sequentially sleeved on the middle part of the pin, the snap spring is connected at the end of the pin, and the snap spring limits the pressing piece, the fixed plate and the spring on the pin.

7. The metal strip bending device according to any one of claims 1 to 5, characterized in that It also includes an adjusting mechanism, the adjusting mechanism includes: A first mounting plate and a second mounting plate connected to the fixed plate;And A slide rod and a slide block, the slide rod is connected between the first mounting plate and the second mounting plate, and extends along the first direction, The slide block is sleeved on the middle part of the slide rod and can slide along the slide rod;And A connecting plate having at least two engaging portions, one of which is connected to the slide block, and the stop piece is fixed to one of the engaging portions or the slide block;And An adjusting screw extending in the first direction, the first mounting plate is provided with a threaded hole extending in the first direction and matched with the threads of the adjusting screw, the adjusting screw is installed in the threaded hole, and the front end of the adjusting screw passes through the threaded hole on the first mounting plate and is connected to the other engaging portion of the connecting plate.

8. The metal strip bending apparatus of claim 7, wherein The adjusting mechanism has two sets of slide rods and slide blocks, and they are respectively distributed on both sides of the adjusting screw in the second direction, The connecting plate has a first engaging portion, a second engaging portion and a third engaging portion, and the second engaging portion and the third engaging portion are distributed on both sides of the first engaging portion in the second direction, wherein the first engaging portion is connected to the adjusting screw, and the second engaging portion and the third engaging portion are respectively connected to the slide blocks on the two slide rods, The stop piece has two, and is distributed along the second direction, two stop pieces are respectively connected to the second engaging portion and the third engaging portion, or two stop pieces are respectively connected to the two slide blocks.

9. The metal strip bending apparatus of claim 7, wherein The stopper and the adjusting mechanism are arranged below the fixed plate, the fixed plate is provided with a stopper passage, and the limiting part of the stopper extends upward through the stopper passage to be higher than the bearing surface of the fixed plate.

10. The metal strip bending apparatus of claim 7, wherein The base and a plurality of columns are further included, the columns are vertically arranged on the upper side of the base, The fixed plate is arranged on the top of the columns, The stopper and the adjusting mechanism are arranged in the area between the columns.

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