Lifting plate feeding device

Abstract

The present invention discloses a lifting type plate supply device, which comprises: a lifting mechanism (100) having a bracket (120) capable of moving up and down, for lifting a plate stack formed by stacking at least one plate loaded on the bracket (120); and a clamping and positioning mechanism (200) in a rectangular shape, fixedly arranged above the bracket (120) of the lifting mechanism (100), for clamping and positioning the lifted plate. The lifting type plate supply device according to the present invention can not only significantly improve the plate supply accuracy, but also greatly improve the plate supply efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of plate supply, and more specifically, to a lifting type plate supply device. Background Art

[0002] Sheets are materials frequently used in mechanical production fields such as processing and assembly. There are many types of sheets, including but not limited to metal sheets, wood sheets, and plastic sheets.

[0003] Taking a liquid crystal display as an example, the backplane included in its backlight module can be regarded as a metal sheet. Figure 1 As shown, the backboard is stored in the form of a backboard stack in which a plurality of backboards P are stacked together. In order to avoid scratches and the like between adjacent backboards P, corner pieces 90 are provided at the four corners of each backboard P, and a backboard P and the four corner pieces 90 provided at the four corners of the backboard P are stacked layer by layer as a group to form a backboard stack.

[0004] In the production process of the backlight module, the backboards P in the backboard stack need to be supplied to the starting end of the backlight module production line one by one. In the past, the backboard P at the top of the backboard stack was manually taken from the top and transferred to the starting end of the backlight module production line. Then, the corner piece 90 left by the previous backboard P was removed, and then the next backboard P was taken. In this way, not only the backboard supply accuracy is far from the production target, but also the work efficiency is very low. Summary of the invention

[0005] Technical issues to be solved

[0006] The present invention is proposed to solve the above-mentioned problem, and its purpose is to provide a lifting type plate supply device which can significantly improve the plate supply accuracy.

[0007] Another object of the present invention is to provide a lifting type plate supply device which can significantly improve the plate supply efficiency.

[0008] The technical problems to be solved by the present invention are not limited to the above problems, and those skilled in the art can clearly understand other problems not mentioned from the following description.

[0009] Technical Solution

[0010] In order to achieve the above-mentioned purpose of the invention, a lifting type plate supply device is provided according to the present invention, including: a lifting mechanism, having a bracket that can move up and down, so as to lift a stack of plates formed by at least one plate loaded on the bracket; and a clamping and positioning mechanism, which is rectangular and fixedly arranged above the bracket of the lifting mechanism, so as to clamp and position the lifted plate.

[0011] Preferably, the clamping and positioning mechanism includes: a base, which is rectangular and open in the middle; four fixed blocks, which are respectively fixed at the four corners of the base; four screw rod units, each of which has two ends rotatably coupled to the fixed blocks, the front and rear screw rod units are parallel to each other, the left and right screw rod units are parallel to each other, and the front and rear screw rod units are perpendicular to the left and right screw rod units in an up-and-down offset manner; and four nut moving units, each of which has two ends threadedly connected to the screw rod unit, and when the left and right screw rod units rotate synchronously, the front and rear nut moving units move toward or away from each other in the front-to-back direction, and when the front and rear screw rod units rotate synchronously, the left and right nut moving units move toward or away from each other in the left-to-right direction, and the four front, rear, left and right nut moving units constitute a plate accommodating space for clamping and positioning the plate.

[0012] Preferably, the screw unit includes: a first threaded portion formed on one side of the screw unit; a second threaded portion formed on the other side of the screw unit; and an intermediate connecting portion for connecting the first threaded portion and the second threaded portion, wherein the spiral lines of the first threaded portion and the second threaded portion are opposite to each other.

[0013] Preferably, the nut moving unit includes: a long rod; a first nut assembly, arranged at one end of the long rod, for cooperating with the threaded portion of the screw unit; a second nut assembly, arranged at the other end of the long rod, for cooperating with the threaded portion of the screw unit; a first rotating shaft, arranged on one side of the long rod, for clamping the positioning plate; and a second rotating shaft, arranged on the other side of the long rod, for clamping the positioning plate.

[0014] Preferably, the clamping and positioning mechanism also includes a power unit for providing rotational power to the screw rod unit, the power unit including: a rotating belt, arranged on a pulley at the end of the same side of the left and right screw rod units and on a pulley at the end of the same side of the front and rear screw rod units, to ensure the synchronous rotation of the left and right screw rod units and to ensure the synchronous rotation of the front and rear screw rod units; and a rotating motor, for providing rotational power to the rotating belt.

[0015] Preferably, the lifting mechanism includes: a vertical frame, with tracks extending in the up and down directions at both ends; a bracket, with sliders corresponding to the tracks, and the bracket moves up and down by sliding the sliders on the tracks; and a transmission unit for providing power for the up and down movement of the bracket.

[0016] Preferably, the transmission unit comprises: a transmission belt extending along the track direction on the vertical frame and connected to the bracket; and a transmission motor providing a rotational force for the rotation of the transmission belt.

[0017] Preferably, the lifting type sheet material supply device further comprises a corner piece removing mechanism for removing the corner piece left after the sheet material clamped and positioned by the clamping and positioning mechanism is taken away.

[0018] Preferably, the corner piece removal mechanism includes: a base; a rotating part, which is rotatably arranged on the upper side of the base through a rotating shaft; a lifting and moving part, which can be combined with the rotating part so as to move up and down; a clamping part, which is arranged at one end of the lifting and moving part and is used to clamp the corner piece; a sliding installation part, comprising a first slide rail whose two ends are respectively fixed to the base of the clamping and positioning mechanism, a sliding block whose bottom is slidably combined with the first slide rail, a second slide rail with a base fixed at one end and slidably combined on the upper side of the sliding block and perpendicular to the first slide rail; a sliding guide part, comprising a guide body combined with the base, a first sliding guide member whose one end is connected to the guide body and the other end of which can be slidably inserted into a slide groove formed on a long rod member of a nut moving unit of the clamping and positioning mechanism, and a second sliding guide member whose one end is connected to the guide body and the other end of which can be slidably inserted into a slide groove formed on a long rod member of another nut moving unit.

[0019] Preferably, the lifting type plate supply device also includes a corner piece collecting mechanism for collecting the removed corner pieces, and the corner piece collecting mechanism includes: a collecting slide, which is obliquely arranged on one side of the corner piece removing mechanism, for receiving the corner pieces from the corner piece removing mechanism; and a coupling member, which is used to obliquely fix the collecting slide to the corner piece removing mechanism.

[0020] Beneficial Effects

[0021] The present invention has at least the following effects.

[0022] The lifting type plate supply device according to the present invention can not only significantly improve the plate supply accuracy, but also greatly improve the plate supply efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 (a) is a schematic cross-sectional view of a backing plate stack for explaining a backing plate stacking state, and (b) is a schematic top view of the backing plate stack.

[0024] Figure 2 is a three-dimensional diagram of a lifting type plate supply device according to an embodiment of the present invention.

[0025] Figure 3 is a three-dimensional diagram of a lifting mechanism according to an embodiment of the present invention.

[0026] Figure 4 is a three-dimensional diagram of a clamping and positioning mechanism according to an embodiment of the present invention.

[0027] Figure 5It is a partially enlarged stereoscopic view of using a clamping and positioning mechanism to clamp and position the corner pieces in the back panel stack in the panel accommodating space according to an embodiment of the present invention.

[0028] Fig. 6A is a three-dimensional diagram of a corner piece removal mechanism according to an embodiment of the present invention.

[0029] Figure 6B FIG. 4 is a three-dimensional diagram of a corner piece removal mechanism viewed from another angle according to an embodiment of the present invention.

[0030] Fig. 7A is a three-dimensional diagram of a corner piece collecting mechanism according to an embodiment of the present invention.

[0031] Figure 7B FIG. 1 is a three-dimensional diagram of a corner piece collecting mechanism viewed from another angle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] Hereinafter, preferred embodiments of the present invention are described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily understand the present invention.

[0033] This article only describes the parts necessary for understanding the technical content of the present invention, and the description of the rest will be omitted to avoid confusion about the essence of the present invention. Please note that in the process, the thickness of the lines or the size of the components shown in the figure may be exaggerated for the sake of clarity and convenience.

[0034] In this article, the terms used are used to describe the embodiments and are not intended to limit and / or define the present invention. When stating that a certain constituent element is "connected", "combined" or "engaged" with another constituent element, this not only includes a direct connection relationship, but also includes an indirect connection relationship in which other constituent elements exist in the middle. In addition, terms such as "include", "comprise" or "have" mean that the features, numbers, steps, operations, constituent elements, parts or combinations thereof recorded in the specification are present, and do not exclude the existence or additional possibility of one or more other features, numbers, steps, operations, constituent elements, parts or combinations thereof.

[0035] Here, for the convenience of description, the plate in this embodiment is described by taking the back plate included in the backlight module of the liquid crystal display as an example. Obviously, the plate may also include other types of plates besides the back plate.

[0036] Figure 2 is a three-dimensional diagram of a lifting type plate supply device according to an embodiment of the present invention.

[0037] like Figure 2As shown, the lifting type plate supply device according to one embodiment of the present invention comprises: a lifting mechanism 100 for lifting the back plate stack (i.e., plate) loaded thereon; and a clamping and positioning mechanism 200 for positioning the lifted back plate. The lifting type plate supply device according to the embodiment of the present invention may also include a corner piece removal mechanism 300 for removing the corner pieces left after the back plate is taken out. Furthermore, the lifting type plate supply device according to the embodiment of the present invention may further include a corner piece collection mechanism 400 for collecting the removed corner pieces (see Fig. 7A and Figure 7B ).

[0038] Hereinafter, the specific structures of the above-mentioned mechanisms 100 to 400 will be described in detail one by one.

[0039] Figure 3 is a three-dimensional diagram of a lifting mechanism 100 according to an embodiment of the present invention.

[0040] like Figure 3 As shown, the lifting mechanism 100 includes: a vertical frame 110, with rails 111 extending in the up-down direction respectively provided at both ends; a bracket 120, used for loading a back plate stack (i.e., a plate stack formed by stacking plates), provided with a slider 121 corresponding to the rail 111, and the bracket 120 moves up and down by sliding the slider 121 on the rail 111; and a transmission unit 130, used for providing power for the up-down movement of the bracket 120.

[0041] The transmission unit 130 may include: a transmission belt 131 extending along the track 111 in the vertical frame 110 and connected to the bracket 120 ; and a transmission motor 132 providing a rotation force for the rotation of the transmission belt 131 .

[0042] Will be like Figure 1 After the back panel stack shown is loaded onto the bracket 120 of the lifting mechanism 100, the operation of the transmission motor 132 is controlled by a controller (not shown), thereby driving the transmission belt 131 to rotate, thereby controlling the lifting and lowering of the bracket 120, and finally achieving the rising and lowering of the back panel stack loaded on the bracket 120.

[0043] Here, although the transmission unit 130 uses a transmission belt 131, it is obvious that a chain can also be used to replace the transmission belt 131. Alternatively, the transmission unit 130 can also use a screw rod arranged in the up and down direction and a screw nut that moves up and down on the screw rod through threaded engagement and is connected to the bracket 120.

[0044] Figure 4 is a three-dimensional diagram of a clamping and positioning mechanism 200 according to an embodiment of the present invention.

[0045] like Figure 4As shown, the clamping and positioning mechanism 200 includes: a base 210, which is roughly rectangular and open in the middle; four fixed blocks 220, which are respectively fixedly arranged at the four corners of the base 210; four screw rod units 230, each of which has two ends rotatably coupled to the fixed block 220, and the front and rear screw rod units 230 are parallel to each other while the left and right screw rod units 230 are also parallel to each other, and the front and rear screw rod units 230 are perpendicular to the left and right screw rod units 230 in an up-down staggered manner; four nut moving units 240, each of which has two ends threadedly connected to the screw rod unit 230, and with the synchronous rotation of the left and right screw rod units 230, the front and rear screw rod moving units 240 move toward or away from each other in the front-to-back direction, and with the synchronous rotation of the front and rear screw rod units 230, the left and right screw rod moving units 240 move toward or away from each other in the left-right direction.

[0046] Here, the four screw units 230 are identical to each other. The screw unit 230 may include: a first threaded portion 231 formed on one side of the screw unit; a second threaded portion 232 formed on the other side of the screw unit, the helical direction of the second threaded portion 232 being opposite to the helical direction of the first threaded portion 231; and an intermediate connecting portion 233 for connecting the first threaded portion 231 with the second threaded portion 232. Here, although the screw unit 230 has an intermediate connecting portion 233, it is obvious that the intermediate connecting portion 233 may not be provided as required, in which case the screw unit 230 will only have a first threaded portion formed on one side and a second threaded portion formed on the other side, the helical directions of the first threaded portion and the second threaded portion being opposite to each other.

[0047] The four nut moving units 240 are identical to each other. The nut moving unit 240 may include: a long rod 241; a first nut assembly 242, disposed at one end of the long rod 241, for cooperating with the threaded portion of the screw unit 230; a second nut assembly 243, disposed at the other end of the long rod 241, for cooperating with the threaded portion of the screw unit 230; a first rotating shaft 244, disposed on one side of the long rod 241, for clamping the positioning back plate (i.e., the plate); and a second rotating shaft 245, disposed on the other side of the long rod 241, for clamping the positioning back plate (i.e., the plate). Here, although the nut moving unit 240 has a first rotating shaft 244 and a second rotating shaft 245, it is obvious that only one rotating shaft may be provided as needed, and the length of the rotating shaft provided at this time may be, for example, in the range of 100 to 2000 rpm. Figure 4 The distance from the leftmost end of the first rotating shaft 244 to the rightmost end of the second rotating shaft 245.

[0048] The clamping and positioning mechanism 200 of this embodiment may further include a power unit 250 for providing rotational power to the screw unit 230. The power unit 250 may include: a rotating belt 251, which is arranged on the pulleys at the ends of the same side of the left and right screw units 230 and the pulleys at the ends of the same side of the front and rear screw units 230, so as to ensure that the left and right screw units 230 rotate synchronously and the front and rear screw units 230 rotate synchronously; and a rotating motor 252, which is used to provide rotational power to the rotating belt 251. In addition, the power unit 250 may further include an auxiliary pulley 253 arranged in the middle of the rotating belt 251, so as to prevent the rotating belt 251 from loosening. The auxiliary pulley 253 may be fixed on the base 210.

[0049] For the clamping and positioning mechanism 200 of the present embodiment, when the rotary motor 252 of the power unit 250 rotates, the left and right screw rod units 230 or the front and rear screw rod units 230 are synchronously driven to rotate via the rotary belt 251. Since the left and right screw rod units 230 rotate synchronously, and the nut assemblies 242 and 243 of the nut moving unit 240 are threadedly connected with the threaded portions 231 and 232 of the screw rod unit 230, it is possible to ensure that the front and rear screw rod moving units 240 move in the front-to-back direction. In addition, since the helical lines of the first threaded portion 231 and the second threaded portion 232 are in opposite directions, the front and rear screw rod moving units 240 can move toward or away from each other in the front-to-back direction according to the forward and reverse rotation of the rotary motor 252. Similarly, since the front and rear screw rod units 230 rotate synchronously, and the nut assemblies 242 and 243 of the nut moving unit 240 are threadedly connected with the threaded portions 231 and 232 of the screw rod unit 230, it is possible to ensure that the left and right nut moving units 240 move in the left and right directions. In addition, since the spiral lines of the first threaded portion 231 and the second threaded portion 232 are in opposite directions, the left and right nut moving units 240 can move toward or away from each other in the left and right directions according to the forward and reverse rotation of the rotating motor 252. Therefore, according to the movement of the left and right nut moving units 240 in the left and right directions and the movement of the front and rear nut moving units 240 in the front and rear directions, the size of the plate accommodating space S formed by the front, rear, left and right four nut moving units 240 can be adjusted. In other words, within the allowable error range, the plate accommodating space S can be adjusted to have the same shape and size as the back plate P (i.e., the plate).

[0050] Here, although the power unit 250 adopts the rotating belt 251, it is obvious that a chain can also be used instead of the rotating belt 251.

[0051] In addition, Figure 4The reference numeral 211 not described here is an auxiliary fixing block provided on the base 210. The auxiliary fixing block 211 is used to install the first slide rail 351 of the sliding installation part 350 of the corner piece removal mechanism 300 described later (see Fig. 6A ), the specific content will be described later. In addition, in this embodiment, the screw unit 230 can be set through the auxiliary fixing block 211.

[0052] In addition, the clamping and positioning mechanism 200 may be fixedly disposed on the vertical frame 110 perpendicularly to the vertical frame 110 above the bracket 120 of the lifting mechanism 100 , or may be fixedly disposed on an additional separate bracket (not shown) above the bracket 120 of the lifting mechanism 100 .

[0053] Figure 5 FIG. 2 is a partially enlarged stereoscopic view of a corner piece 90 in a back plate stack being clamped and positioned in a plate receiving space S using a clamping and positioning mechanism 200 according to an embodiment of the present invention. Figure 5 The back plate P is not shown.

[0054] After the plate accommodating space S formed by the four front, rear, left and right nut moving units 240 is adjusted to the shape and size corresponding to the back plate P, the back plate stack loaded on the bracket 120 is lifted upward by the lifting mechanism 100 until the four corners of the back plate above the back plate stack (more specifically, the corner pieces 90) are clamped by the mutually perpendicular rotating shafts 244, 245 (such as Figure 5 Here, preferably, the rotating shafts 244 and 245 are made of elastic materials such as rubber to avoid rigid collision during the process of clamping the corner piece 90 in the lifting state. Figure 5 In the embodiment, the upper rotating shafts 244, 245 and the lower rotating shafts 244, 245 contact different corner pieces 90 respectively, but the present invention is not limited thereto. When the height of the corner piece 90 is large enough, the upper rotating shafts 244, 245 and the lower rotating shafts 244, 245 can contact the same corner piece 90 at the same time. When the four corners of the backboard on the backboard stack (more specifically, the corner piece 90) are clamped by the rotating shafts 244, 245 perpendicular to each other, the clamped backboard can be positioned, so that the positioned backboard can be taken by a suction cup device and transferred to the next process.

[0055] Fig. 6A is a three-dimensional diagram of a corner piece removal mechanism 300 according to an embodiment of the present invention, Figure 6B It is a three-dimensional view of the corner piece removal mechanism 300 observed from another angle.

[0056] like Fig. 6A and Figure 6BAs shown, the corner piece removal mechanism 300 includes: a base portion 310; a rotating portion 320, which is rotatably arranged on the upper side of the base portion 310 through a rotating shaft; a lifting and moving portion 330, which is combined with the rotating portion 320 so as to be movable up and down; a clamping portion 340, which is arranged at one end of the lifting and moving portion 330 and is used to clamp the corner piece; a sliding installation portion 350, which has a first slide rail 351 whose two ends are respectively fixed to the fixed block 220 and the auxiliary fixed block 211 of the clamping and positioning mechanism 200, a sliding block 353 whose bottom is slidably combined with the first slide rail 351, and a sliding block 353 having a base portion 310 fixed at one end and can be moved upward and downward. The second slide rail 352 is slidably coupled to the upper side of the slide block 353 and is perpendicular to the first slide rail 351; the slide guide portion 360 includes a guide body 361 coupled to the base portion 310, a first slide guide 362 connected at one end to the guide body 361 and slidably inserted at the other end into a slide groove 241a formed on a long rod 241 of the nut moving unit 240, and a second slide guide 363 connected at one end to the guide body 361 and slidably inserted at the other end into a slide groove 241a formed on a long rod 241 of another nut moving unit 240. Rolling bearings (not shown) may be respectively provided at the ends of the first slide guide 362 inserted into the slide groove 241a and the ends of the second slide guide 363 inserted into the slide groove 241a, thereby reducing the friction between the slide guides 362, 363 and the slide groove 241a. In this embodiment, there are four corner piece removal mechanisms 300 with the above-mentioned structure, which are respectively disposed at the four corners of the clamping and positioning mechanism 200 .

[0057] In the process of adjusting the plate accommodating space S formed by the four front, rear, left and right nut moving units 240 to the shape and size corresponding to the back panel P, the first sliding guide 362 and the second sliding guide 363 slide in their respective slide grooves 241a, thereby guiding the main body 361 to apply force to the base 310. Since the base 310 is connected to the sliding mounting portion 350, the corner piece removal mechanism 300 can make planar motion on the horizontal plane through the sliding cooperation between the first slide rail 351, the second slide rail 352 and the sliding block 353. After the plate accommodating space S is adjusted to the shape and size corresponding to the back panel P, the clamping portion 340 of the corner piece removal mechanism 300 can also be located just above the corner piece. After the clamped and positioned back panel is taken, the lifting and moving portion 330 moves downward and reaches the corner piece, and then the clamping portion 340 clamps the corner piece through the opening and closing process (see Figure 6B ), then the lifting and moving part 330 rises to the initial state, then the rotating part 320 rotates to a predetermined angle, and then the clamping part 340 opens again, thereby removing the corner piece from the clamping position of the back panel.

[0058] In addition, although not shown in the figure, the lifting and lowering action of the lifting and moving part 330 and the clamping action of the clamping part 340 can be completed by a cylinder assembly.

[0059] Fig. 7A is a perspective view showing a corner piece collecting mechanism 400 according to an embodiment of the present invention, Figure 7B It is a stereoscopic view of the corner piece collecting mechanism 400 observed from another angle.

[0060] like Fig. 7A and Figure 7B As shown, the corner piece collecting mechanism 400 includes: a collecting slide 410, which is obliquely arranged at one side of the corner piece removing mechanism 300, and is used to receive the corner piece from the clamping portion 340 of the corner piece removing mechanism 300; and a coupling member 420, which is used to obliquely fix the collecting slide 410 to the base portion 310 of the corner piece removing mechanism 300. Here, since the coupling member 420 fixes the collecting slide 410 to the base portion 310 of the corner piece removing mechanism 300, when the corner piece removing mechanism 300 performs a planar motion on a horizontal plane, the corner piece collecting mechanism 400 also performs the same planar motion.

[0061] When the clamping part 340 of the corner piece removal mechanism 300 clamps the corner piece and rises and rotates, it rotates to a predetermined angle (e.g., 90 degrees) toward the corner piece collection mechanism 400, and then the clamping part 340 opens to release the corner piece, and the corner piece can fall onto the collection chute 410 under its own gravity. Since the collection chute 410 is arranged at an angle, the corner piece can slide down the collection chute 410 and be collected. Although not shown in the figure, a collection component such as a receiving tray or a receiving bag can be arranged at the bottom end of the collection chute 410 to facilitate the collection of the corner piece.

[0062] The above is a detailed description of the composition and structure of the lifting type plate supply device according to the embodiment of the present invention. Next, the working process of the lifting type plate supply device according to the embodiment of the present invention is described.

[0063] First, the back plate stack (i.e., plate) is loaded onto the bracket 120 of the lifting mechanism 100. Next, by controlling the power unit 250 of the clamping and positioning mechanism 200, the left and right two screw rod units 230 and / or the front and rear two screw rod units 230 are rotated synchronously, so that the front and rear two nut moving units 240 and / or the left and right two nut moving units 240 move toward or away from each other on the horizontal plane, and then the plate accommodating space S formed by the front, rear, left and right four nut moving units 240 is adjusted to have the same shape and size as the back plate (i.e., plate). Afterwards, by controlling the transmission unit 130 of the lifting mechanism 100, the back plate stack is raised together with the bracket 120. When the back plate stack enters the plate accommodating space S and the corner pieces at the four corners of the back plate are clamped by the mutually perpendicular rotating shafts 244 and 245, the back plate is positioned by the clamping and positioning mechanism 200. Next, the topmost positioned backing plate in the backing plate stack is picked up and transferred to the next process by using a suction cup device, etc., and the picked up backing plate will leave the corner pieces originally located at its four corners. After that, after the plate accommodation space S is adjusted, the corner piece removal mechanism 300 located just above the corner piece, its clamping part 340 descends through the lifting and moving part 330, clamps the corner piece, and then rises, and then the rotating clamping part 340 of the rotating part 320 rotates toward the corner piece collection mechanism 400 side while clamping the corner piece and releases the corner piece, and then the corner piece removal mechanism 300 returns to the initial state. Next, the released corner piece enters the inclined collection slide 410 of the corner piece collection mechanism 400, and slides down in the collection slide 410 according to its own gravity, and is finally collected at the bottom of the collection slide 410. Since the plate accommodating space S only needs to be adjusted once for a specific type of back plate (i.e., plate), after the plate accommodating space S is initially adjusted based on the back plate, the back plate lifting step, the back plate taking step, the corner piece removing step, and the corner piece collecting step as described above only need to be repeated. Accordingly, the lifting plate supply device of the present invention can not only significantly improve the back plate supply accuracy, but also significantly improve the back plate supply efficiency.

[0064] The scope of the claims of the present invention is not limited to the specific embodiments described above. Various other embodiments that can be modified or changed by a person skilled in the art without departing from the technical concept of the present invention described in the claims should also be included in the scope of the claims of the present invention.

Claims

1. A lifting plate supply device, characterized in that include: A lifting mechanism (100) has a bracket (120) that can move up and down, and is used to lift a plate stack formed by stacking at least one plate loaded on the bracket (120); The clamping and positioning mechanism (200) is rectangular and is fixedly arranged above the bracket (120) of the lifting mechanism (100) to clamp and position the lifted plate; A corner piece removal mechanism (300) is used to remove the corner piece left after the plate clamped and positioned by the clamping and positioning mechanism (200) is taken away; as well as A corner piece collecting mechanism (400) for collecting the removed corner pieces; Wherein, the corner piece removal mechanism (300) comprises: A base portion (310); A rotating portion (320) is rotatably disposed on the upper side of the base portion (310) via a rotating shaft; A lifting and moving part (330) is coupled to the rotating part (320) so as to be movable up and down; A clamping portion (340) is arranged at one end of the lifting and moving portion (330) and is used to clamp the corner piece; The sliding mounting portion (350) comprises a first slide rail (351) whose two ends are respectively fixed on the base (210) of the clamping positioning mechanism (200), a sliding block (353) whose bottom is slidably coupled to the first slide rail (351), and a second slide rail (352) having a base portion (310) fixed at one end and slidably coupled to the upper side of the sliding block (353) and perpendicular to the first slide rail (351); and The sliding guide part (360) comprises a guide body (361) combined with the base part (310), a first sliding guide (362) having one end connected to the guide body (361) and the other end slidably inserted into a slide groove (241a) formed on a long rod (241) of a nut moving unit (240) of the clamping and positioning mechanism (200), and a second sliding guide (363) having one end connected to the guide body (361) and the other end slidably inserted into a slide groove (241a) formed on a long rod (241) of another nut moving unit (240); The corner piece collecting mechanism (400) comprises: a collecting slide (410) obliquely disposed on one side of the corner piece removing mechanism (300) for receiving the corner piece from the corner piece removing mechanism (300); and The joint piece (420) is used to fix the collecting slideway (410) obliquely to the corner piece removal mechanism (300).

2. The lifting type plate supply device according to claim 1, characterized in that: The clamping and positioning mechanism (200) comprises: The base (210) is rectangular and open in the middle; Four fixing blocks (220) are respectively fixedly arranged at four corners of the base (210); Four screw rod units (230), each screw rod unit (230) having two ends rotatably coupled to the fixed block (220), the front and rear screw rod units (230) being parallel to each other, the left and right screw rod units (230) being parallel to each other, and the front and rear screw rod units (230) and the left and right screw rod units (230) being perpendicular to each other in an up-down staggered manner; and Four nut moving units (240), both ends of each nut moving unit (240) are respectively threadedly connected to the screw rod unit (230), when the left and right screw rod units (230) rotate synchronously, the front and rear nut moving units (240) move towards or away from each other in the front and rear directions, when the front and rear screw rod units (230) rotate synchronously, the left and right nut moving units (240) move towards or away from each other in the left and right directions, and the four front, rear, left and right nut moving units (240) form a plate accommodating space (S) for clamping and positioning the plate.

3. The lifting type plate supply device according to claim 2, characterized in that: The screw unit (230) comprises: A first threaded portion (231) formed on one side of the screw unit; A second threaded portion (232) formed on the other side of the screw unit; and The intermediate connecting portion (233) is used to connect the first threaded portion (231) and the second threaded portion (232). The helical directions of the first threaded portion (231) and the second threaded portion (232) are opposite to each other.

4. The lifting type plate supply device according to claim 2, characterized in that: The nut moving unit (240) comprises: Long rod (241); A first nut assembly (242) is arranged at one end of the long rod (241) and is used to cooperate with the threaded portion of the screw rod unit (230); A second nut assembly (243) is arranged at the other end of the long rod (241) and is used to cooperate with the threaded portion of the screw rod unit (230); A first rotating shaft (244) is disposed on one side of the long rod (241) and is used to clamp and position the plate; and The second rotating shaft (245) is arranged on the other side of the long rod (241) and is used for clamping and positioning the plate.

5. The lifting type plate supply device as claimed in claim 2, characterized in that: The clamping and positioning mechanism (200) further includes a power unit (250) for providing rotational power to the screw unit (230). The power unit (250) comprises: A rotating belt (251) is arranged on the pulleys at the ends of the left and right screw rod units (230) on the same side and on the pulleys at the ends of the front and rear screw rod units (230) on the same side, so as to ensure that the left and right screw rod units (230) rotate synchronously and ensure that the front and rear screw rod units (230) rotate synchronously; and The rotating motor (252) is used to provide rotating power to the rotating belt (251).

6. The lifting type plate supply device according to claim 1, characterized in that: The lifting mechanism (100) comprises: A vertical frame (110) is provided with rails (111) extending in the up-down direction at both ends; The bracket (120) is provided with a slider (121) corresponding to the track (111), and the bracket (120) moves up and down by sliding the slider (121) on the track (111); and The transmission unit (130) is used to provide power for the bracket (120) to move up and down.

7. The lifting type plate supply device according to claim 6, characterized in that: The transmission unit (130) comprises: A transmission belt (131) is arranged on the vertical frame (110) and extends along the track (111) and is connected to the bracket (120); and A transmission motor (132) provides a rotational force for the rotation of the transmission belt (131).

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