Device and method for automatically stacking plates

Abstract

The invention relates to the technical field of automatic equipment, in particular to an automatic plate stacking device and method.The automatic plate stacking device comprises a machine body, a conveying belt used for conveying plates is arranged in the machine body, and a conveying roller frame is arranged on one side of the machine body; the conveying roller frame is connected to one side of the conveying belt, and a steering station and a plate stacking station are sequentially arranged on the conveying roller frame in the conveying direction of the conveying roller frame. The turning station and the plate stacking station are arranged in the conveying direction of the conveying roller frame, the plates can be continuously conveyed after being rotated by 90 degrees through the turning station, continuous conveying of the plates is limited through a limiting baffle in the plate stacking station, and then the two lifting frames capable of oppositely moving are used for fixing and lifting the plates located between the two lifting frames. In this way, after the second plate is moved to the position below the lifting frame, the steps can be repeated, the second plate is lifted as well, and the plate stacking function is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automated equipment, and in particular to a device and method for automatically stacking plates. Background Art

[0002] A variety of additional processes need to be applied during the forming process of balsa wood contour boards. Shallow grooving and punching are two types of continuous processing processes. The shallow grooving process is the surface processing of the board, and the punching process is the overall through-hole processing of the board. In terms of processing procedures, the shallow grooving process must be processed on a single board, while the punching process can be processed in a stacked manner with multiple boards. Therefore, the boards are usually grooved first and then stacked for punching.

[0003] The current process is to perform automatic line punching of single board processing or shallow groove processing, followed by manual stacking and then punching. Since each board needs to be punched, the efficiency will be slow. The board size is large, and manual stacking is not only inefficient, but also cannot achieve perfect alignment. Therefore, the overall board processing efficiency is poor, affecting the company's benefits.

[0004] Therefore, a device for automatically stacking plates is proposed to solve the above-mentioned problems. Summary of the invention

[0005] Technical issues solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device and method for automatically stacking plates, which can effectively solve the problem in the prior art that plate processing requires manual stacking resulting in low processing efficiency.

[0007] Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The present invention provides an automatic plate stacking device, comprising a machine body, wherein a conveyor belt for conveying plates is arranged inside the machine body, a conveying roller frame is arranged on one side of the machine body, the conveying roller frame is connected to one side of the conveyor belt, and a turning station and a plate stacking station are arranged on the conveying roller frame in sequence along its conveying direction: the turning station comprises two turning cones which are distributed up and down and can slide up and down; the plate stacking station comprises lifting frames arranged on both sides of the conveying roller frame, the two lifting frames can move in opposite directions and fix the plates located between the two lifting frames, and the plate stacking station also comprises a limit baffle which is arranged below the conveying roller frame and can be raised and lowered, and the limit baffle is parallel to the conveying rollers in the conveying roller frame and is located between two adjacent conveying rollers.

[0010] Furthermore, the plate stacking station further comprises two positioning plates which can move towards each other, the two positioning plates are respectively located on both sides of the conveying roller frame and the positioning plates are perpendicular to the conveying direction of the conveying roller frame.

[0011] Furthermore, a cavity is provided at one end of the positioning plate facing the plate, and the cross section of the cavity is an isosceles trapezoid.

[0012] Furthermore, the stacking station also includes a lifting frame which is arranged below the conveying roller frame and can be lifted up and down, and the lifting frame includes a plurality of top plates, which are parallel to the conveying rollers in the conveying roller frame and are located between two adjacent conveying rollers.

[0013] Furthermore, the cross section of the lifting frame is L-shaped with the concave surface facing the middle of the conveying roller frame, and the cross section of the side parallel to the plate is an isosceles trapezoid with the inclined surface facing the side of the conveying roller frame.

[0014] Furthermore, the lifting frame is provided with an extension arm, which is movably mounted on the lifting frame and moves toward the middle of the plate and fits with the lower end surface of the plate when the lifting frame supports the plate below.

[0015] Furthermore, a cavity is provided in the middle of the lifting frame for the extension arm to slide in, and the cavity is concave from one end thereof facing the plate toward the other side.

[0016] Furthermore, a positioning plate is coaxially sleeved on the outer side of the conveying roller located between the machine body and the turning station in the conveying roller frame.

[0017] Furthermore, the cross-section of any one of the positioning plates is in the shape of an isosceles trapezoid.

[0018] This solution also proposes a method for automatically stacking plates, which is applied to the above-mentioned device for automatically stacking plates, and includes the following steps:

[0019] Step 1: Place the plate in the machine body for slotting and send the slotted plate out of the machine body through a conveyor belt;

[0020] Step 2: Rotate the plate 90 degrees through two turning cones and then continue to transport it through the conveyor roller frame;

[0021] Step 3: Raise the limit baffle to limit the plate from being transported by the conveying roller frame and then drive the two positioning plates to adjust the position of the plate;

[0022] Step 4: Drive the lifting frame to rise and bring the plate to between the two lifting frames, and then let the two lifting frames move towards each other and support the lower end of the plate. While the lifting frames move, the extension arm extends out and contacts the lower end surface of the plate;

[0023] The stacking of the next plate on the conveying roller frame repeats steps 1-4 until the number of plates between the two lifting frames reaches a predetermined standard.

[0024] Beneficial Effects

[0025] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0026] The present invention sets a turning station and a stacking station in the conveying direction of the conveying roller frame. The turning station can rotate the plate 90 degrees and then continue to convey it. The limit baffle in the stacking station is used to limit the continued conveyance of the plate. Then, two lifting frames that can move in opposite directions are used to fix and lift the plate located between them. Therefore, when the second plate is moved under the lifting frame, the steps can be repeated and the second plate can be lifted in the same way to realize the stacking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the automatic plate stacking device in an embodiment of the present invention;

[0029] Figure 2 It is a schematic top view of the overall structure of the automatic plate stacking device in an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the conveying roller frame in an embodiment of the present invention;

[0031] Figure 4 In the embodiment of the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0032] Figure 5 Schematic diagram of the plate stacking station structure in an embodiment of the present invention;

[0033] Figure 6 It is a schematic side view of the plate stacking station structure in an embodiment of the present invention;

[0034] Figure 7 Schematic diagram of the lifting frame structure in an embodiment of the present invention;

[0035] Figure 8 It is a top view schematic diagram of a first structure of a lifting frame in an embodiment of the present invention;

[0036] Fig. 9 It is a schematic top view of a second structure of a lifting frame in an embodiment of the present invention;

[0037] Fig.10 It is a schematic diagram of the side structure of the lifting frame in an embodiment of the present invention;

[0038] Fig.11 It is a schematic diagram of the side view structure of the extension arm in an embodiment of the present invention.

[0039] The numbers in the figure represent respectively: 1, machine body; 10, conveying roller frame; 101, positioning plate; 11, cleaning brush; 12, fourth telescopic push rod; 2, steering station; 21, steering cone; 3, plate stacking station; 31, lifting frame; 311, extension arm; 312, cavity; 313, gear; 314, push bar; 315, spring; 32, limit baffle; 321, first telescopic push rod; 33, positioning plate; 331, cavity; 332, second telescopic push rod; 34, lifting frame; 341, top plate; 342, third telescopic push rod. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above, obliquely above, or on the surface of the second feature, the second feature being supported and fixed by the first feature, or simply indicating that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] The present invention will be further described below in conjunction with the embodiments.

[0045] Example:

[0046] Refer to the attached Figure 1-11 , this embodiment proposes a device for automatically stacking plates.

[0047] It includes a body 1. The body 1 in this case is a shallow groove grooving machine. The plate is passed through the shallow groove grooving machine to leave a plurality of grooves on the upper end surface of the plate. The plurality of grooves are equidistantly opened along the width direction of the plate. A conveyor belt for conveying the plate is arranged inside the body 1, and the grooved plate will be conveyed out of the body 1.

[0048] A conveying roller frame 10 is provided on one side of the machine body 1. The conveying roller frame 10 includes a plurality of conveying rollers distributed at intervals. The conveying rollers can all rotate. The rotation method is not specifically limited here. Multiple conveying rollers can be driven to rotate simultaneously by a pulley. This is a well-known technology and will not be described in detail here. It is not shown in the drawings.

[0049] The conveying roller frame 10 is connected to one side of the conveyor belt and a turning station 2 and a plate stacking station 3 are sequentially arranged on the conveying roller frame 10 along its conveying direction. The turning station 2 includes two turning cones 21 distributed up and down and can slide up and down. The lower end of the cross section of the turning cone 21 is parallel to the conveyor belt. When the plate passes by, the tip of the turning cone 21 will press one corner end of the plate, and after driving the plate to rotate 90 degrees, the turning cone 21 will separate from the plate. The way in which the turning cone 21 rotates the plate 90 degrees is a well-known technology and will not be elaborated here.

[0050] The stacking station 3 includes a lifting frame 31 arranged on both sides of the conveying roller frame 10. The two lifting frames 31 can move oppositely and fix the plate located between the two lifting frames 31. The stacking station 3 also includes a limit baffle 32 arranged under the conveying roller frame 10 and can be raised and lowered. The limit baffle 32 is parallel to the conveying rollers in the conveying roller frame 10 and is located between two adjacent conveying rollers.

[0051] Specifically, when the plate after being turned through the turning station 2 is conveyed toward the stacking station 3 with its longer end facing the conveying direction, the limit baffle 32 rises and blocks the front end of the plate. It should be noted that the length of the limit baffle 32 in this case is greater than the length of the plate. When the plate moves to one side of the limit baffle 32, it cannot continue to be conveyed. The limit baffle 32 is driven by the first telescopic push rod 321 installed at the lower end of the conveying roller frame 10.

[0052] The stacking station 3 further includes two positioning plates 33 which can move towards each other. The two positioning plates 33 are respectively located on both sides of the conveying roller frame 10 and the positioning plates 33 are perpendicular to the conveying direction of the conveying roller frame 10 .

[0053] Each positioning plate 33 is driven by a second telescopic push rod 332 arranged at the side end of the conveying roller frame 10. It is worth noting that in this case, a cavity 331 is arranged at one end of the positioning plate 33 facing the plate, and the cross-section of the cavity 331 is an isosceles trapezoid. Since the two inclined surfaces in the cavity 331 are opposite to the side ends of the plate, and the length of the cavity 331 is greater than the width of the plate, the posture of the plate can be quickly corrected through the two inclined surfaces to ensure that the plate is in the center position of the two lifting frames 31. When the plate fits with the inner end surface of the cavity 331, the two positioning plates 33 are symmetrically distributed on both sides of the plate. After correction, the two positioning plates 33 are reset.

[0054] The stacking station 3 also includes a lifting frame 34 which is arranged below the conveying roller frame 10 and can be lifted up and down. The lifting frame 34 includes a plurality of top plates 341. In this embodiment, three top plates 341 are arranged. The lifting frame 34 is driven by a third telescopic push rod 342 installed at the lower end of the conveying roller frame 10.

[0055] The top plate 341 is parallel to the conveying rollers in the conveying roller frame 10 and is located between two adjacent conveying rollers. After the limit baffle 32 rises to block the front end of the plate and the position is corrected by the positioning plate 33, the top plate 341 rises at this time, and rises to between the two lifting frames 31 with the plate. When the two lifting frames 31 move toward each other and fix the plate, the top plate 341 resets and pushes a plate to the bottom of the plate that has been fixed by the two lifting frames 31. At this time, the two lifting frames 31 move back to back, and the top plate 341 continues to rise for a distance with the plate. Then, the two lifting frames 31 move toward each other and continue to fix the two plates. It should be noted that the plates in this embodiment will be stacked with three pieces and then lowered by the top plate 341 with the stacked plates and continue to be transported through the conveying roller frame 10.

[0056] In the present case, the cross-section of the lifting frame 31 is L-shaped with the concave side facing the middle of the conveying roller frame 10. The lifting frame 31 is chamfered at one end facing the plate, and the cross-section of the side parallel to the plate is an isosceles trapezoid with the inclined surface facing the side of the conveying roller frame 10. The setting of the inclined surface can quickly push the lower end surface of the plate, and even if the position of the plate is slightly offset, the lifting frame 31 can be smoothly moved to the bottom of the plate.

[0057] The lifting frame 31 is provided with an extension arm 311 , which is movably mounted on the lifting frame 31 , and when the lifting frame 31 holds the lower side of the plate, the extension arm 311 moves toward the middle of the plate and fits with the lower end surface of the plate.

[0058] It should be noted that in the present case, when the lifting frame 31 is supporting the plate, the misalignment area between the lifting frame 31 and the plate is approximately 1 / 5 of the length of the plate, and the area of ​​the plate supported by the two lifting frames 31 is approximately 2 / 5 in total. Since the plate is made of a plurality of block-shaped wooden boards, and the toughness and density of the wooden boards are different, some of the plates will bend to a certain extent when supported by the lifting frame 31, that is, the overall shape is an arc with the concave surface facing upward. When the bending amplitude is large, it may rub against the plate below, causing a certain circumferential displacement of the upper and lower plates, which will affect the correction effect of the positioning plate 33. In addition, when the bending amplitude is too large, the bent portion will block the front end of the plate, limiting the transportation of the plate.

[0059] Adjusting the height of the lifting frame 31 will increase the rising distance of the top plate 341, increase energy consumption, and be detrimental to the business benefits.

[0060] Therefore, in the present embodiment, two extension modes of the extension arm 311 are proposed. By means of the extension arm 311 that can be linearly displaced and extended from one side of the lifting frame 31, the area of ​​the lower end surface of the plate supported by the lifting frame 31 is increased. More importantly, the area supporting the plate is extended in the length direction, which can greatly reduce the degree of concavity of the plate. The top plate 341 can push the second plate to the bottom of the first plate without moving too long a distance.

[0061] First way:

[0062] As attached Figure 8As shown, in this embodiment, the width of the extension arm 311 and the width of the lifting frame 31 are in a ratio of approximately 2:3, a tooth groove is provided on the end face on one side of the extension arm 311, and a gear 313 matching the tooth groove is provided on the lifting frame 31, and a push bar 314 matching the gear 313 is elastically provided on the lifting frame 31, and the push bar 314 is symmetrically distributed on one side end of the gear 313 away from the extension arm 311, and the upper end of the push bar 314 passes through the upper end face of the lifting frame 31, and the protruding part is located on the moving path of the plate. When the two lifting frames 31 move toward each other, the plate will synchronously push the push bar 314 to move, so that the push bar 314 cooperates with the side end face of the extension arm 311 through the gear 313 to slide the extension arm 311 out of the cavity 312.

[0063] It is worth noting that in this embodiment, the gear 313 is arranged at the rear position of the cavity 312. When the lifting frame 31 is separated from the plate, the push bar 314 is no longer resisted by the plate, and the push bar 314 will move in the opposite direction, thereby sliding the extension arm 311 back into the cavity 312.

[0064] Optionally, a torsion spring can be provided on the outside of the gear 313 shaft. When the push bar 314 is pushed and moved by the plate, the gear 313 rotates, but the gear shaft accumulates a certain amount of elastic potential energy under the action of the torsion spring. When the push bar 314 is no longer constrained, the gear 313 rotates in the opposite direction under the action of the elastic potential energy, thereby realizing the reverse rotation of the gear 313.

[0065] A spring may also be provided at one end of the push bar 314 away from the plate. When the push bar 314 is pushed and moved by the plate, the spring is compressed and a certain amount of elastic potential energy is accumulated.

[0066] The drawings in this embodiment show that a spring 315 is provided between the push bar 314 and one end surface of the cavity 312 .

[0067] It should be noted that, in the present embodiment, two push bars 314 are respectively provided on each lifting frame 31 , but only one spring 315 is provided, and the protruding parts of the two push bars 314 are in an eight-shaped shape with the concave surface facing the plate.

[0068] The two push bars 314 are symmetrical with the spring 315 as the center.

[0069] Second way:

[0070] Refer to the attached Fig. 9, by allowing one corner end of the extension arm 311 to be elastically hinged on the lifting frame 31 through a rotating shaft, a connecting gear is sleeved on the outer side of the rotating shaft, and the push bar 314 cooperates with the gear. When the push bar 314 is pushed and moved synchronously by the plate, the gear will rotate with the rotating shaft, thereby allowing the extension arm 311 to rotate out. It is worth noting that this method will reduce the length of the extension arm 311, and its rotation angle is 45 degrees, that is, one corner end of the extension arm 311 is located at the lower end of the plate. This is a well-known technology. Fig. 9 It is only shown for simplicity.

[0071] A cavity 312 for the extension arm 311 to slide in the middle of the lifting frame 31 is provided, and the cavity 312 is recessed from one end thereof facing the plate toward the other side, so that when the lifting frame 31 contacts the lower end surface of the plate, the contact area will be reduced, and thus the friction force will be reduced accordingly, thereby improving the smoothness of the lifting frame 31 moving to the lower end of the plate.

[0072] Moreover, when the extension arm 311 is in the cavity 312, there is a certain distance between the front end of the extension arm 311 and the front end of the lifting frame 31, that is, the contact area between the lifting frame 31 and the lower end surface of the plate will be very small, with only two inclined surfaces on the left and right. When the extension arm 311 is extended, it will be located in the middle of the two inclined surfaces and move toward the middle of the plate.

[0073] In order to ensure that the angle of the plate when conveyed out from the machine body 1 will not deviate too much, a positioning plate 101 is coaxially sleeved on the outer side of the conveying roller 1 located between the machine body 1 and the turning station 2 in the conveying roller frame 10 in this embodiment, so that the plate can move to the bottom of the turning station 2 along a predetermined path for angle adjustment.

[0074] Optionally, the cross-section of any one of the positioning plates 101 is in the shape of an isosceles trapezoid, which can quickly guide the plate to one side of the positioning plate 101 for transportation.

[0075] When the plate is grooved, there will be some debris in the groove of the plate. In this embodiment, a cleaning brush 11 that can reciprocate along the width direction of the conveyor belt is provided on the body 1. The cleaning brush 11 is driven by a fourth telescopic push rod 12 fixed on the body 1. The cleaning surface of the cleaning brush 11 contacts the upper end surface of the plate, and the length of its moving trajectory is greater than the length of one side of the plate. The cleaning brush can move linearly along the groove of the plate to clean the debris in the groove.

[0076] This solution also proposes a method for automatically stacking plates, which is applied to the above-mentioned device for automatically stacking plates, and includes the following steps:

[0077] Step 1: Place the plate in the machine body for slotting and send the slotted plate out of the machine body through a conveyor belt;

[0078] Step 2: Rotate the plate 90 degrees through two turning cones and then continue to transport it through the conveyor roller frame;

[0079] Step 3: Raise the limit baffle to limit the plate from being transported by the conveying roller frame and then drive the two positioning plates to adjust the position of the plate;

[0080] Step 4: Drive the lifting frame to rise and bring the plate to between the two lifting frames, and then let the two lifting frames move towards each other and support the lower end of the plate. While the lifting frames move, the extension arm extends out and contacts the lower end surface of the plate;

[0081] The stacking of the next plate on the conveying roller frame repeats steps 1-4 until the number of plates between the two lifting frames reaches a predetermined standard.

[0082] It should be noted that the predetermined standard mentioned above can be based on actual needs, that is, the number of layers of stacked plates required for punching. Generally speaking, after the plates are stacked into three pieces, they can be further transported by the conveyor roller rack and transported to the punching station (not shown in the figure) for punching.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic device for stacking plates, comprising a body (1), wherein a conveyor belt for conveying plates is arranged inside the body (1), characterized in that: A conveying roller frame (10) is provided on one side of the machine body (1), the conveying roller frame (10) is connected to one side of the conveying belt and the conveying roller frame (10) is provided with the following in sequence along its conveying direction: A steering station (2), wherein the steering station (2) comprises two steering cones (21) which are distributed vertically and can slide up and down; The plate stacking station (3) comprises lifting frames (31) arranged on both sides of a conveying roller frame (10), the two lifting frames (31) can move towards each other and fix the plate located between the two lifting frames (31), and the plate stacking station (3) also comprises a limit baffle (32) arranged below the conveying roller frame (10) and capable of being raised and lowered, the limit baffle (32) being parallel to the conveying rollers in the conveying roller frame (10) and being located between two adjacent conveying rollers.

2. The device for automatically stacking plates according to claim 1, characterized in that: The plate stacking station (3) further comprises two positioning plates (33) which can move towards each other. The two positioning plates (33) are respectively located on two sides of the conveying roller frame (10), and the positioning plates (33) are perpendicular to the conveying direction of the conveying roller frame (10).

3. The device for automatically stacking plates according to claim 2, characterized in that: The positioning plate (33) is provided with a cavity (331) at one end facing the plate, and the cross section of the cavity (331) is an isosceles trapezoid.

4. The device for automatically stacking plates according to claim 3, characterized in that: The plate stacking station (3) also includes a lifting frame (34) which is arranged below the conveying roller frame (10) and can be lifted up and down. The lifting frame (34) includes a plurality of top plates (341). The top plates (341) are parallel to the conveying rollers in the conveying roller frame (10) and are located between two adjacent conveying rollers.

5. The device for automatically stacking plates according to claim 4, characterized in that: The cross section of the lifting frame (31) is L-shaped with the concave surface facing the middle of the conveying roller frame (10), and the cross section on one side parallel to the plate is an isosceles trapezoid with the inclined surface facing the side of the conveying roller frame (10).

6. The device for automatically stacking plates according to claim 5, characterized in that: The lifting frame (31) is provided with an extension arm (311), which is movably mounted on the lifting frame (31) and moves toward the middle of the plate and fits with the lower end surface of the plate when the lifting frame (31) supports the lower side of the plate.

7. The device for automatically stacking plates according to claim 6, characterized in that: A cavity (312) for the extension arm (311) to slide inside is provided in the middle of the lifting frame (31), and the cavity (312) is recessed from one end thereof facing the plate toward the other side.

8. The device for automatically stacking plates according to claim 7, characterized in that: A positioning plate (101) is coaxially sleeved on the outer side of the conveying roller (1) located between the machine body (1) and the turning station (2) in the conveying roller frame (10).

9. The device for automatically stacking plates according to claim 8, characterized in that: The cross section of any one of the positioning plates (101) is in the shape of an isosceles trapezoid.

10. A method for automatically stacking plates, applied to an apparatus for automatically stacking plates as claimed in claim 9, characterized in that: The steps include: Step 1: placing a plate in a machine body (1) for slotting and sending the slotted plate out of the machine body (1) via a conveyor belt; Step 2: Rotate the plate 90 degrees through two turning cones (21) and then continue to transport it through the conveying roller frame; Step 3: Raise the limit baffle (32) to limit the plate from being continuously transported by the conveying roller frame (10) and then drive the two positioning plates (33) to adjust the position of the plate; Step 4: driving the lifting frame (34) to rise and bring the plate to between the two lifting frames (31), and then allowing the two lifting frames (31) to move towards each other and support the lower end of the plate. While the lifting frames (31) are moving, the extension arm (311) extends out and contacts the lower end surface of the plate; The stacking of the plates on the next conveying roller frame (10) repeats steps 1-4 until the number of plates between the two lifting frames (31) reaches a predetermined standard.

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