A flexible sheet material loading conveyor

Abstract

The application discloses a flexible sheet feeding conveying device and belongs to the technical field of feeding equipment. The feeding conveying device comprises a feeding conveying assembly, the feeding conveying assembly comprises a pressing mechanism, a transfer mechanism and a clamping mechanism arranged on the transfer mechanism, the clamping mechanism arranged on the transfer mechanism is driven to move by the transfer mechanism in the feeding conveying assembly, so that the second clamping arm in the clamping mechanism can be inserted into the gap between the top layer sheet and the secondary layer sheet along the upper surface of the secondary layer sheet, then the top layer sheet is clamped by the opposite movement of the first clamping arm and the second clamping arm, and then the top layer sheet is transferred by the clamping mechanism. And the pressing mechanism is used for pressing the upper surface of the secondary layer sheet, which fixes the secondary layer sheet on one hand and avoids the movement of the secondary layer sheet, and on the other hand, the gap between the secondary layer sheet and the top layer sheet is increased, which is more conducive to the insertion of the first clamping arm into the gap to clamp the top layer sheet.

Description

Technical Field

[0001] This application belongs to the technical field of feeding equipment, and in particular relates to a flexible sheet feeding and conveying device. Background Technology

[0002] In industry, flexible sheets such as kraft paper, sheet films, prepregs, and copper foil are typically stored in stacks. When these flexible sheets are needed for further processing, they must be separated one by one and transported to the target processing equipment for processing, completing the sorting and loading process. Common stacking methods for flexible sheets are staggered stacking or overlapping stacking.

[0003] Currently, the feeding and conveying of flexible sheets, whether staggered or overlapping, is primarily accomplished using negative pressure adsorption. However, due to the adhesion between stacked flexible sheets, multiple sheets may be adsorbed at once during the adsorption process. The usual solution is to shake the adsorbed sheets to separate them. However, this method has two drawbacks: firstly, the landing point of the sheets that are not directly adsorbed changes, affecting subsequent continuous operation; secondly, the shaking process can cause directly adsorbed sheets to detach.

[0004] Therefore, how to achieve more stable separation and feeding of interleaved stacked flexible sheets is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] This application aims to at least partially solve the technical problem of prepreg being easily re-fed and detached during the current feeding and conveying process. To this end, this application provides a feeding and conveying device for flexible sheets.

[0006] This application provides a flexible sheet feeding and conveying device, characterized in that it is used to convey flexible sheets that are stacked alternately in a sheet pile, the feeding and conveying device includes a feeding and conveying assembly, the feeding and conveying assembly including:

[0007] A pressing mechanism, wherein the pressing plate of the pressing mechanism is movable along the height direction of the sheet stack and presses against the upper surface of the next layer of sheet in the sheet stack; and,

[0008] The transfer mechanism and the clamping mechanism disposed on the transfer mechanism, the clamping mechanism including a first clamping arm and a second clamping arm located above the first clamping arm, the second clamping arm being able to be inserted along the surface of the second layer sheet into the space between the second layer sheet and the top layer sheet of the sheet stack under the drive of the transfer mechanism.

[0009] Optionally, to better implement this application, the transfer mechanism includes a translation mechanism and a lifting mechanism, wherein the lifting mechanism is connected to the translation mechanism and the clamping mechanism is connected to the lifting mechanism.

[0010] Optionally, to better realize this application, a material plate is also included, wherein a relief groove is provided on the material plate, the length direction of the relief groove is parallel to the insertion direction of the clamping mechanism, and the sheet is stacked on the material plate.

[0011] Optionally, to better implement this application, at least one end of the relief groove extends through the end of the material plate, and the end of the relief groove extending through the end of the material plate has a flared opening.

[0012] Optionally, to better realize this application, the clamping mechanism is provided with a first air blowing channel, the air outlet of the first air blowing channel is fixed to the clamping mechanism, and the air outlet of the first air blowing channel faces the insertion direction of the first clamping arm.

[0013] Optionally, to better realize this application, the insertion end of the first clamping arm is swayably connected to a shovel plate, and the shovel plate is provided with a stop block to limit the shovel plate's swing angle.

[0014] Alternatively, to better implement this application, the width of the shovel plate is less than or equal to the width of the clearance groove provided on the material plate.

[0015] Optionally, to better implement this application, the first clamping arm is tilted, with the connecting end of the first clamping arm higher than the insertion end of the first clamping arm.

[0016] Optionally, to better realize this application, the pressing mechanism includes a pressing plate that can be pressed against the surface of the flexible sheet, and a second air blowing channel is provided on the pressing plate, one end of the second air blowing channel passing through the front end of the pressing plate.

[0017] Optionally, to better implement this application, the transfer mechanism includes a first transfer mechanism and a second transfer mechanism, at least one clamping mechanism is fixed to the first transfer mechanism and clamps the flexible sheet from one side of the sheet stack, and at least one clamping mechanism is fixed to the second transfer mechanism and clamps the flexible sheet from the other side of the sheet stack.

[0018] Compared with the prior art, this application has the following advantages:

[0019] This application utilizes a transfer mechanism within the feeding and conveying assembly to move a clamping mechanism mounted on the transfer mechanism. This allows the second clamping arm in the clamping mechanism to insert into the gap between the top and second-layer sheets along the upper surface of the second-layer sheet. The top-layer sheet is then clamped by the opposing movement of the first and second clamping arms, and subsequently transferred by the clamping mechanism. The first and second clamping arms prevent the flexible sheet from detaching after clamping. Furthermore, this application incorporates a pressing mechanism, independent of the transfer mechanism, to compress the upper surface of the second-layer sheet. This fixes the second-layer sheet, preventing movement during the clamping and transfer of the top-layer sheet. Additionally, the pressing mechanism increases the gap between the second and top-layer sheets, facilitating the insertion of the first clamping arm to grip the top-layer sheet. This achieves the goal of clamping one flexible sheet at a time, solving the problem of repetitive feeding. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the stacking structure of sheet materials is shown;

[0022] Figure 2 A schematic diagram of the feeding and conveying device is shown.

[0023] Figure 3 It shows Figure 2 A schematic diagram of the material feeding and conveying assembly in the middle;

[0024] Figure 4 It shows Figure 3 A schematic diagram of a middle and lower pressure mechanism;

[0025] Figure 5 It shows Figure 4 Schematic diagram of the middle and lower pressure plates;

[0026] Figure 6 A schematic diagram of the transfer mechanism and the clamping mechanism is shown;

[0027] Figure 7 It shows Figure 6 Schematic diagram of the clamping mechanism and the lifting mechanism;

[0028] Figure 8 It shows Figure 7 A schematic diagram of the clamping mechanism;

[0029] Figure 9 A schematic diagram of the material plate structure is shown;

[0030] Figure 10 A schematic diagram of the position of a flexible sheet is shown.

[0031] Figure label:

[0032] 100 - Sheet stack; 110 - Flexible sheet; 111 - Top layer sheet; 112 - Secondary layer sheet;

[0033] 200 racks;

[0034] 300 - Feeding and conveying assembly;

[0035] 210 - Pressing mechanism; 211 - Pressing plate; 2111 - Second air blowing channel; 212 - Presser;

[0036] 220 - Transfer mechanism; 221 - Translation mechanism; 2211 - Translation plate; 2212 - Translation driver A; 2213 - Translation driver B; 222 - Lifting mechanism;

[0037] 230 - Clamping mechanism; 231 - First clamping arm; 2311 - Clamping surface; 232 - Second clamping arm; 234 - Clamping arm driver; 235 - Shovel plate; 2351 - Stop block; 236 - First air blowing channel;

[0038] 400 - Material plate; 410 - Relief groove; 411 - Flaring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0043] This application is described below with reference to the accompanying drawings and specific embodiments:

[0044] The flexible sheets to be loaded are stacked in the form of a stockpile 100. In this embodiment, the stockpile 100 is stacked as follows: Figure 1 As shown, the sheet stack 100 is formed by stacking multiple flexible sheets 110 in an alternating manner. When any two adjacent flexible sheets 110 are staggered, a portion of one flexible sheet 110 will inevitably overlap with the other flexible sheet 110. This overlapping portion is called the overlapping part, and the other parts outside the overlapping part are called the stacked parts. In the sheet stack 100, the flexible sheet 110 at the top of the sheet stack 100 is called the top layer sheet 111, and the other flexible sheet 110 located below the top layer sheet 111 and overlapping with the top layer sheet 111 is called the next layer sheet 112.

[0045] This application provides a feeding and conveying device for a flexible sheet 110, the structure of which is as follows: Figures 2 to 9 As shown, this feeding and conveying device can handle items such as... Figure 1 The sheet stack 100 shown is fed one by one. Specifically, the feeding and conveying device provided includes a feeding and conveying assembly 300, which includes a pressing mechanism 210, a transfer mechanism 220 and a clamping mechanism 230.

[0046] The pressing mechanism 210 is a mechanism capable of providing downward pressure to the sheet stack 100, specifically, as follows: Figure 4 and Figure 5As shown, the pressing mechanism 210 includes a pressing plate 211. In this embodiment, the pressing plate 211 is used to contact the upper surface of the stacked portion of the secondary sheet 112 and moves along the height direction of the sheet stack 100 under the action of downward pressure. Since the surfaces of the flexible sheets 110 are not completely adhered together after stacking and there is a certain gap, the pressing plate 211 can press the secondary sheet 112 and the sheets below the secondary sheet 112 downwards. Pressing the secondary sheet 112 and the flexible sheet 110 below it increases the gap between the top sheet 111 and the secondary sheet 112, making it easier for the clamping mechanism 230 to insert into the gap to separate and clamp the top sheet 111. On the other hand, the pressing mechanism 210 is relatively independent of the clamping mechanism 230. While the clamping mechanism 230 is clamping the top sheet 111 and pulling it to move, the pressing mechanism 210 also ensures that the secondary sheet 112 will not follow the movement of the top sheet 111 due to the adsorption force between adjacent flexible sheets 110. This further ensures that only one flexible sheet 110 is clamped at a time, and also makes it more accurate to clamp the secondary sheet 112 later.

[0047] It should be noted that in this embodiment, the pressing mechanism 210 also includes a pressing device 212, which provides downward pressure to the pressing plate 211. One end of the pressing device 212 is a fixed end, which can be fixed on the frame 200 of the feeding conveyor or on other fixed brackets. The other end is a telescopic end. The pressing plate 211 is fixed on the telescopic end of the pressing device 212, and the pressing device 212 drives the pressing plate 211 to move and guide, thereby pressing the flexible sheet 110. Without changing the pressing plate 211, different pressing devices 212 can be used to adjust and control the magnitude of the downward pressure. Of course, in some other alternative embodiments, instead of using a pressure reducer 212 to provide downward pressure to the pressure plate 211, a guiding device can be used to guide the pressure plate 211, and the weight of the pressure plate 211 itself can be used as the downward pressure to press the flexible sheet 110. However, without changing the pressure plate 211, using gravity as the downward pressure does not allow for control over the magnitude of the downward pressure. The pressure reducer 212 can be a telescopic cylinder, a lead screw mechanism, or other device capable of driving the pressure plate 211 to move. In this embodiment, a telescopic cylinder is used as the pressure reducer 212.

[0048] Combination Figure 2 and Figure 6-8As shown, the transfer mechanism 220 can drive the clamping mechanism 230 mounted on the transfer mechanism 220 to move. The transfer mechanism 220 is used to move the clamping mechanism 230 to a position where it can clamp the flexible sheet 110 before the clamping mechanism 230 clamps the flexible sheet 110, and to move the clamping mechanism 230 to other positions after the clamping mechanism 230 clamps the flexible sheet 110. According to actual usage requirements, the transfer mechanism 220 can be configured to travel back and forth between the target position and the clamping position and / or back and forth between the intermediate position and the clamping position. The clamping position refers to the position where the clamping mechanism 230 clamps the flexible sheet 110, the target position refers to the position where the flexible sheet 110 is placed after being fed and conveyed, and the intermediate position refers to the position where the flexible sheet 110 is temporarily placed during the feeding and conveying process.

[0049] The clamping mechanism 230 is used to clamp the flexible sheet 110. In this embodiment, the clamping mechanism 230 includes a first clamping arm 231 and a second clamping arm 232 arranged opposite to each other. The second clamping arm 232 is located above the first clamping arm 231. When the first clamping arm 231 and the second clamping arm 232 move towards each other, they can clamp the flexible sheet 110. Conversely, when the first clamping arm 231 and the second clamping arm 232 move away from each other, they can release the clamping of the flexible sheet 110. It should be noted that the opposite movement of the first clamping arm 231 and the second clamping arm 232 can be either the first clamping arm 231 fixed and the second clamping arm 232 moving towards the first clamping arm 231, or the second clamping arm 232 fixed and the first clamping arm 231 moving towards the second clamping arm 232, or the first clamping arm 231 and the second clamping arm 232 moving towards each other simultaneously. Compared with using a negative pressure device to adsorb the flexible sheet, the first clamping arm 231 and the second clamping arm 232 hold the flexible sheet 110 more stably and will not cause the flexible sheet 110 to fall off.

[0050] It should be noted that in this embodiment, the opposing and reciprocating movements of the first clamping arm 231 and the second clamping arm 232 are controlled by the clamping arm driver 234. The clamping arm driver 234 can be a telescopic cylinder, a lead screw mechanism, or other device capable of driving the opposing and reciprocating movements of the first clamping arm 231 and the second clamping arm 232. In this embodiment, the presser 212 is a telescopic cylinder.

[0051] The feeding and conveying action of the feeding and conveying assembly 300 is as follows: When clamping the sheet stack 100, the clamping mechanism 230 moves to the stacking area of ​​the secondary sheet 112 under the drive of the transfer mechanism 220. The second clamping arm 232 of the clamping mechanism 230 moves to the upper surface of the stacking area of ​​the secondary sheet 112. The lower pressure plate 211 of the lower pressure mechanism 210 presses against the upper surface of the stacking area of ​​the secondary sheet 112. Then, the transfer mechanism 220 drives the clamping mechanism 230 to move to the staggered position of the top sheet 111 and the secondary sheet 112 so that the insertion end of the second clamping arm 232 is inserted into the gap between the top sheet 111 and the secondary sheet 112. Then, the first clamping arm 231 and the second clamping arm 232 move towards each other to clamp the flexible sheet 110. Then, the transfer mechanism 220 drives the clamped flexible sheet 110 to be transferred to the target position to complete the conveying of the flexible sheet 110. The target location here can be processing equipment (such as shearing equipment, pressing equipment, etc.), conveying devices (such as conveyor belts, conveyor rollers), or transfer points.

[0052] It should be noted that in this embodiment, the pressing mechanism 210 and the transfer mechanism 220 are both mounted on the same frame 200. In some other alternative embodiments, the pressing mechanism 210 and the transfer mechanism 220 can be mounted on different frames 200 respectively. In addition, depending on the size of the flexible sheet 110 to be clamped, one or more clamping mechanisms 230 can be fixed on the transfer mechanism 220 at intervals. When the size of the flexible sheet 110 is large, multiple clamping mechanisms 230 can simultaneously clamp different positions on one side of the flexible sheet 110, thereby avoiding bending or tearing of the flexible sheet 110 during the clamping process.

[0053] Furthermore, the aforementioned transfer mechanism 220 includes a translation mechanism 221 and a lifting mechanism 222. The translation mechanism 221 is fixed on the frame 200 and is connected to the lifting mechanism 222. The lifting mechanism 222 is connected to the clamping mechanism 230. The translation mechanism 221 can drive the lifting mechanism 222 and the clamping mechanism 230 to move laterally as a whole, while the lifting mechanism 222 can drive the clamping mechanism 230 to move longitudinally. By employing translation mechanism 221 and lifting mechanism 222 as components of transfer mechanism 220, on the one hand, the clamping mechanism 230 is moved in the vertical plane or spatial direction, enabling the displacement action required for material feeding and conveying. On the other hand, since the lifting and lowering of clamping mechanism 230 is achieved through a separate lifting mechanism 222, by adjusting the stroke of lifting mechanism 222, the first clamping arm 231 of clamping mechanism 230 can be pressed against the upper surface of the second-layer sheet 112 under the drive of lifting mechanism 222 before being inserted into the gap between the top layer sheet 111 and the second-layer sheet 112. By squeezing the gap that exists between the stacked flexible sheets 110 during the stacking process, the gap between the top layer sheet 111 and the second-layer sheet 112 is increased, which makes it easier for the first clamping arm 231 to be inserted into the gap between the top layer sheet 111 and the second-layer sheet 112.

[0054] The aforementioned translation mechanism 221 includes a translation plate 2211 and a translation driver that drives the translation plate 2211 to move. The translation plate 2211 is connected to the frame 200 via a slide rail, allowing the translation plate 2211 to slide on the frame 200. The translation driver provides driving force for the sliding of the translation plate 2211. The translation driver can be a translation driver A2212 composed of a telescopic cylinder, with the translation plate 2211 fixed to the telescopic end of the telescopic cylinder. Alternatively, the translation driver can be a translation driver B2213 composed of a belt conveyor mechanism, with the translation plate 2211 fixed to the belt. The aforementioned lifting mechanism 222 uses a telescopic cylinder and a slide rail. The lifting mechanism 222 is fixed to the translation plate 2211, enabling the lifting to maintain linear longitudinal movement and facilitating the calculation of the pressing position of the clamping mechanism.

[0055] Furthermore, in combination Figure 2 , Figure 3 and Figure 9As shown, the above-mentioned feeding and conveying device also includes a material plate 400. The upper surface of the material plate 400 is used to support the sheet stack 100 before feeding and conveying. After the material plate 400 is set, the sheet stack 100 can be stacked on the material plate 400, which plays a role in the initial positioning of the sheet stack 100 and is conducive to the accurate positioning of the feeding and conveying component 300 in the process of feeding and conveying the flexible sheet 110. The upper surface of the material plate 400 is provided with an inwardly recessed relief groove 410. When the first clamping arm 231 of the clamping mechanism 230 presses against the upper surface of the secondary sheet 112, the first clamping arm 231 is located directly above the relief groove 410. At this time, the projection of the part of the first clamping arm 231 that contacts the secondary sheet 112 on the material plate 400 is located in the relief groove 410. Furthermore, the length direction of the relief groove 410 is parallel to the insertion direction of the clamping mechanism 230 when clamping the flexible sheet 110, so that the clamping mechanism 230 is always located directly above the relief groove 410 during the process of inserting into the gap between the top sheet 111 and the secondary sheet 112. This configuration ensures that regardless of whether the stacked flexible sheets 110 are few or many, when the first clamping arm 231 presses down on the flexible sheets 110, the flexible sheets 110 can bend and concave towards the relief groove 410, thereby further increasing the gap between the secondary sheet 112 and the top sheet 111. This makes it easier for the first clamping arm 231 to insert into the gap between the secondary sheet 112 and the top sheet 111, reducing or even eliminating the phenomenon of the clamping mechanism 230 clamping empty. This avoids the situation where, when the stacked flexible sheets 110 are few, the total gap between the flexible sheets 110 is small, which prevents the clamping mechanism 230 from being able to insert into the gap and instead slides over the surface of the top sheet 111 (i.e., the phenomenon of clamping empty).

[0056] It should be noted that in this embodiment, the clearance groove 410 is a straight groove, and the end of the clearance groove 410 near the clamping mechanism 230 penetrates the end of the material plate 400. This allows the clearance groove 410 to also serve as an insertion channel for the first clamping arm 231 when only one flexible sheet 110 remains after being fed and conveyed. The insertion end of the first clamping arm 231 can be inserted into the clearance groove 410 to achieve insertion below the flexible sheet 110, thereby cooperating with the second clamping arm 232 to clamp the last flexible sheet 110. Thus, the feeding and conveying device provided in this embodiment can complete the sequential feeding and conveying of all the flexible sheets 110 in the sheet stack 100. In addition, under the action of the lifting mechanism 222, the part of the first clamping arm 231 that presses the flexible sheet 110 is the pressing part of the first clamping arm 231. In this embodiment, the width of the pressing part is smaller than the width of the relief groove 410, so that when the pressing part presses on the upper surface of the flexible sheet 110, the pressing part can more easily squeeze the flexible sheet 110 into the relief groove 410.

[0057] Furthermore, in this embodiment, a flared end 411 structure is provided at one end of the relief groove 410 that penetrates the end of the material plate 400. The flared end 411 structure guides the second clamping arm 232, thereby enabling the second clamping arm 232 to smoothly enter the relief groove 410.

[0058] Furthermore, the clamping mechanism 230 is provided with a first air blowing channel 236. In this embodiment, the first air blowing channel 236 is a pipe fixed to the clamping mechanism 230 to facilitate adjustment of the air blowing direction of the first air blowing channel 236. In some other optional embodiments, if it is not necessary to adjust the air blowing direction of the first air blowing channel 236, it can also be achieved by directly opening a channel in the first clamping arm 231. Specifically, the pipe of the first air blowing channel 236 is fixed to the first clamping arm 231, and the direction of the air outlet of the first air blowing channel 236 is the same as the insertion direction of the first clamping arm 231. The air inlet of the first air blowing channel 236 can be directly or indirectly connected to an air source through other pipes, and the opening or closing of the first air blowing channel 236 is controlled by a switch valve. A first air blowing channel 236 is provided. After the clamping mechanism 230 clamps the first sheet and the second sheet, the first air blowing channel 236 is opened and can blow air into the gap between the second-layer sheet 112 and the top-layer sheet 111, thereby accelerating the separation of the second-layer sheet 112 and the top-layer sheet 111.

[0059] like Figure 8As shown, in this embodiment, the first clamping arm 231 is inclined, and the insertion end of the first clamping arm 231 is lower than the fixed end of the first clamping arm 231. This arrangement allows the separated portion of the top sheet 111 to move upward during the insertion of the first clamping arm 231 into the gap between the second-layer sheet 112 and the top sheet 111, thereby increasing the separated area of ​​the top sheet 111. Furthermore, after setting the first air blowing channel 236, the first air blowing channel 236 is also inclined. The gas blown from the outlet end of the first air blowing channel 236 is directed towards the upper surface of the second-layer sheet 112 rather than a surface parallel to the second-layer sheet 112. This arrangement causes the gas to bounce between the top sheet 111 and the second-layer sheet 112 after being blown out, avoiding the phenomenon of the second-layer sheet 112 and the top sheet 111 moving towards the middle after the gas is blown out parallel.

[0060] Furthermore, in this embodiment, the insertion end of the first clamping arm 231 is connected to a spade plate 235, which can swing relative to the first clamping arm 231 in a vertical plane. The spade plate 235 is a wedge-shaped plate, with a tapered portion at the front end and a swing-connected rear end to the first clamping arm 231. With the spade plate 235 in place, on the one hand, the spade plate 235 can more easily insert into the gap between the secondary sheet 112 and the top sheet 111 through its tapered portion; on the other hand, since the spade plate 235 can swing relative to the first clamping arm 231, it has an adaptive function. When the spade plate 235 contacts the flexible sheet 110, it ensures that the tapered portion of the spade plate 235 remains in contact with the upper surface of the secondary sheet 110, thus preventing the tapered portion of the spade plate 235 from tilting upwards and becoming suspended, which would prevent it from being inserted into the gap between the secondary sheet 112 and the top sheet 111.

[0061] It should be noted that in this embodiment, the shovel plate 235 achieves relative swing with the first clamping arm 231 through a rotating shaft structure. Furthermore, a stop block 2351 is provided at the rear end of the shovel plate 235. After the stop block 2351 is attached to the first clamping arm 231, it can limit the downward swing direction of the front end of the shovel plate 235. This allows the front end of the shovel plate 235 to swing downward under its own weight to the position where the stop block 2351 is attached to the first clamping arm 231 when the shovel plate 235 is suspended in the air. The angle between the shovel plate 235 and the horizontal plane is less than 90°. This ensures that after the shovel plate 235 is attached to the flexible sheet 110, the front end of the shovel plate 235 can always face the direction of the gap between the second-layer sheet 112 and the top-layer sheet 111.

[0062] It should be noted that at least a portion of the second clamping arm 232 is located directly above the shovel plate 235, so that the second clamping arm 232 can limit the upward swing direction of the front end of the shovel plate 235.

[0063] Furthermore, the width of the aforementioned shovel 235 is less than or equal to the width of the clearance groove 410 provided on the material plate 400, so that the shovel 235 can be inserted into the clearance groove 410 when feeding and conveying the last flexible sheet 110. Based on this, in this embodiment, at least one end of the clearance groove 410 penetrates the end of the material plate 400, and this end is located near the clamping mechanism 230, so that the shovel 235 can be inserted into the clearance groove 410 from its end. Optionally, the end of the clearance groove 410 penetrating the end of the material plate 400 is also provided with a flared end 411 structure, which guides the shovel 235 so that the shovel 235 can be accurately inserted into the clearance groove 410.

[0064] Furthermore, in this embodiment, the first clamping arm 231 is inclined, meaning that the clamping surface 2311 on the first clamping arm 231, which cooperates with the second clamping arm 232 to clamp the flexible sheet 110, is also an inclined surface, with the lower end of the clamping surface 2311 close to the spade plate 235. Inclining the first clamping arm 231 allows it to guide the flexible sheet 110 at an angle, enabling the inserted portion of the flexible sheet 110 to separate upwards. This further helps to eliminate the negative pressure between the top layer sheet 111 and the second layer sheet 112, making it easier to separate the top layer sheet 111. Additionally, if a first air blowing channel 236 is provided, more gas blown from the first air blowing channel 236 can enter the gap between the second layer sheet 112 and the top layer sheet 111. Preferably, the lower end of the clamping surface 2311 is provided with a guide surface to guide the flexible sheet 110 onto the clamping surface 2311.

[0065] Furthermore, a second air blowing channel 2111 is provided on the lower pressure plate 211 of the lower pressure mechanism 210. The second air blowing channel 2111 is used to blow out gas to accelerate the separation of the top layer sheet 111 and the second layer sheet 112. In this embodiment, the second air blowing channel 2111 is a groove-shaped channel. The second air blowing channel 2111 is opened on the lower surface of the lower pressure plate 211, and the air outlet of the second air blowing channel 2111 faces the direction of the gap between the top layer sheet 111 and the second layer sheet 112. The air inlet of the second air blowing channel 2111 is directly connected to the air source or indirectly connected to the air source through a pipe. The air passage of the second air blowing channel 2111 is controlled by a switch valve. The gas blown out by the second air blowing channel 2111 can enter the gap between the top layer sheet 111 and the second layer sheet 112 to accelerate the separation of the top layer sheet 111 and the second layer sheet 112. When the second air blowing channel 2111 is combined with the first air blowing channel 236, it can achieve a better effect.

[0066] Furthermore, in the flexible sheet feeding and conveying device provided in this embodiment, a feeding and conveying assembly 300 is provided on both sides of the sheet stack 100, and both feeding and conveying assemblies 300 are connected to the frame 200. The clamping direction of the clamping mechanism 230 in the feeding and conveying assembly 300 on one side is opposite to the clamping direction of the clamping mechanism 230 in the feeding and conveying assembly 300 on the other side. Since the overlapping area of ​​the secondary sheet 112 in the sheet stack 100 alternates on both sides of the overlapping area during the process of separating the flexible sheet 110 from the top one by one in the sheet stack 100, the feeding and conveying assembly 300 is provided on both sides of the sheet stack 100, and the flexible sheet 110 can be fed and conveyed one by one by the clamping mechanism 230 located on both sides of the sheet stack 100.

[0067] Furthermore, in the feeding and conveying device of this embodiment, the transfer mechanism 220 in the conveying assembly 300 located on one side of the sheet stack 100 travels back and forth between the sheet stack 100 and the target position, so that the conveying assembly can realize the feeding and conveying of the flexible sheet. The transfer mechanism 220 in the conveying assembly 300 located on the other side of the sheet stack 100 travels back and forth between the sheet stack 100 and the intermediate position, so that the conveying assembly can realize the transfer of the top sheet 111 at the position of the sheet stack 100, until the position of the top sheet 111 is transferred to such a position. Figure 10 The transfer position shown is then used to transfer the flexible sheet to the target position by the conveying assembly 300 located on one side of the sheet stack 100. In this way, continuous feeding and conveying of the top sheet 111 in the sheet stack 100 is realized.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

Claims

1. A flexible sheet material feeding and conveying device, characterized in that, For conveying flexible sheets stacked in an alternating manner in a sheet stack (100), the feeding conveying device includes a conveying assembly (300), the conveying assembly (300) comprising: A pressing mechanism (210) includes a pressing plate (211) that can be pressed against the surface of the flexible sheet. The pressing plate (211) of the pressing mechanism (210) can move along the height direction of the sheet stack (100) and press against the upper surface of the next layer sheet (112) of the sheet stack (100). A second air blowing channel (2111) is provided on the pressing plate (2111), and one end of the second air blowing channel (2111) passes through the front end of the pressing plate (2111). The transfer mechanism (220) and the clamping mechanism (230) disposed on the transfer mechanism (220) include a first clamping arm (231) and a second clamping arm (232) located above the first clamping arm (231). The transfer mechanism (220) drives the clamping mechanism (230) to move. The second clamping arm (232) can be inserted between the second layer sheet (112) of the sheet stack (100) and the top layer sheet (111) of the sheet stack (100) under the drive of the transfer mechanism (220). The insertion end of the first clamping arm (231) is swayably connected to a shovel plate (235), and the shovel plate (235) is provided with a stop (2351) to limit the swing angle of the shovel plate (235). It also includes a material plate (400) with a clearance groove (410) on it. The length direction of the clearance groove (410) is parallel to the insertion direction of the clamping mechanism (230), and the sheet stack (100) is placed on the material plate (400).

2. The flexible sheet material feeding and conveying device according to claim 1, characterized in that, The transfer mechanism (220) includes a translation mechanism (221) and a lifting mechanism (222), wherein the lifting mechanism (222) is connected to the translation mechanism (221) and the clamping mechanism (230) is connected to the lifting mechanism (222).

3. The flexible sheet feeding and conveying device according to claim 1, characterized in that, At least one end of the relief groove (410) extends through the end of the material plate (400), and the end of the relief groove (410) extending through the end of the material plate (400) has a flared end (411).

4. The flexible sheet feeding and conveying device according to claim 1, characterized in that, The clamping mechanism (230) is provided with a first air blowing channel (236), the air outlet of the first air blowing channel (236) is fixed on the clamping mechanism (230), and the air outlet of the first air blowing channel (236) is oriented toward the insertion direction of the first clamping arm (231).

5. The flexible sheet material feeding and conveying device according to claim 1, characterized in that, The width of the shovel plate (235) is less than or equal to the width of the clearance groove (410) provided on the material plate (400).

6. The flexible sheet feeding and conveying device according to claim 1, characterized in that, The first clamping arm (231) is inclined, and the connecting end of the first clamping arm (231) is higher than the insertion end of the first clamping arm (231).

7. A flexible sheet material feeding and conveying device according to any one of claims 1-6, characterized in that, The transfer mechanism (220) includes a first transfer mechanism (220) and a second transfer mechanism (220), at least one clamping mechanism (230) is fixed to the first transfer mechanism (220) and clamps the flexible sheet from one side of the sheet stack (100), and at least one clamping mechanism (230) is fixed to the second transfer mechanism (220) and clamps the flexible sheet from the other side of the sheet stack (100).

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