Double-layer feeding mechanism

By designing a double-layer feeding mechanism, using the camera and material overlap detection components to achieve accurate deviation correction of sheet-mounted materials, and improving transmission efficiency through the double-layer guide rail structure, the problems of low transmission efficiency and poor deviation correction effect in the prior art are solved.

CN222556074UActive Publication Date: 2025-03-04SHENZHEN WENTONG MASCH CO LTD
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Patent Information

Application Number
CN202420276626.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-05
Publication Date
2025-03-04
Estimated Expiration
2034-02-05

AI Technical Summary

Technical Problem

In the prior art, when transmitting sheet-loaded materials, there are problems of low transmission efficiency and poor deviation correction effect, which is difficult to meet the requirements of intelligent and rapid production.

Method used

A double-layer feeding mechanism is designed, including a gantry, a camera, a deviation correction component, a guide rail component and a chuck component. Materials are photographed through the camera, material overlap detection components are used to complete deviation correction, and efficient transmission is achieved through the double-layer guide rail structure.

Benefits of technology

It realizes accurate correction and efficient transmission of sheet-loaded materials, improves transmission efficiency and stability, and meets the needs of intelligent and rapid production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-layer feeding mechanism which comprises a door frame, a camera, a deviation rectifying assembly, a guide rail assembly and a chuck assembly. The camera is arranged in the middle of the upper side of the door frame; the deviation rectifying assembly is fixed to the lower side of the door frame. The guide rail assembly comprises a first guide rail group and a second guide rail group; the first guide rail group is arranged above the second guide rail group; the chuck assembly comprises a first chuck group and a second chuck group; the first chuck group is arranged on the first guide rail group and can horizontally move on the first guide rail group; the second chuck group is arranged on the second guide rail group and can horizontally move on the second guide rail group; materials are fixed by the deviation rectifying fixing clamp, and after the materials are detected and rectified by the material overlapping detection assembly, the materials are fixed by the first chuck group and are transferred to the second chuck group to be conveyed to the next station. Or the first chuck group is used for clamping and directly feeding. The overall transmission efficiency is high, and the transmission stability is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a double-layer feeding mechanism. Background Art

[0002] Sheet materials or sheet products such as card products, including tag cards, name cards, teaching cards, etc., need to be accurately positioned during the transmission process on the one hand, and on the other hand, they need to be corrected during the transmission process to ensure the stability of product quality. The existing technology has problems such as low transmission efficiency and poor correction effect during the continuous transmission process, which makes it difficult to meet the requirements of contemporary intelligent and rapid production.

[0003] In the prior art, after the general card template is produced, it is a whole sheet, which needs to be cut accurately to form a single card; and before cutting, the material needs to be corrected and stably transmitted. If there is a slight deviation, the cut card will be skewed, affecting the yield of the product. On the one hand, the correction function of the equipment in the prior art does not meet the requirements, and on the other hand, the transmission stability after correction is also poor. In addition, the handover transmission in the prior art generally adopts a single track, which is inefficient. Utility Model Content

[0004] The utility model aims to overcome at least one defect of the above-mentioned prior art and provide a double-layer feeding mechanism to achieve the purpose of accurate deviation correction, good transmission continuity and high transmission efficiency.

[0005] The utility model protects a double-layer feeding mechanism, including a gantry, a camera, a deflection correction component, a guide rail component and a chuck component; the camera is arranged at the middle part of the upper side of the gantry; the deflection correction component is fixed on the lower side of the gantry; the guide rail component includes a first guide rail group and a second guide rail group; the first guide rail group is arranged above the second guide rail group; the chuck assembly includes a first chuck group and a second chuck group; the first chuck group is arranged on the first guide rail group and can move horizontally on the first guide rail group; the second chuck group is arranged on the second guide rail group and can move horizontally on the second guide rail group; the deflection correction component includes a material overlap detection component and a deflection correction fixing clamp, and the material overlap detection component is arranged between the two groups of deflection correction fixing clamps; the material is fixed by the deflection correction fixing clamp, and after the material overlap detection component detects and completes the deflection correction, the material is fixed by the first chuck group and handed over to the second chuck group for transmission to the next workstation; or the first chuck group clamps and feeds directly.

[0006] The gantry plays the role of supporting and fixing the camera. The material is a sheet material, which is pushed in from the front of the gantry; after being fixed by the correction component, the material is photographed by the camera, and then connected to the background computer system to analyze and calculate whether correction is needed; if correction is needed, the correction component starts to work to realize the correction of the horizontal position of the material. The first chuck group plays the role of handover, and the second chuck group moves downward and then horizontally to the position of the first chuck group, clamps the material downward after rising, and then transfers it to the next station; it is also possible for the first chuck group to fix the material and then directly transfer it. Therefore, the utility model has different handover methods, and the relevant procedures can be systematically designed in advance. The utility model is designed with a double-layer guide rail, so the first chuck group and the second chuck group are equivalent to two independent motion systems, which can realize the handover and transmission of materials individually or in cooperation, thereby improving the transmission efficiency.

[0007] Furthermore, the guide rail assembly also includes a double-layer bracket; the first guide rail group is arranged on the upper layer of the double-layer bracket; the second guide rail group is arranged on the lower layer of the double-layer bracket; the first guide rail group includes a first track, a first slider, and a first guide plate from bottom to top; it also includes a first cylinder group arranged on one side of the first slider, and the first slider can slide horizontally between the first track and the first guide plate; the first chuck group is fixed to the upper end of the first slider.

[0008] The design of the double-layer bracket facilitates the installation of two sets of guide rails; the width of the second guide rail set located at the bottom is greater than that of the first guide rail set, so that the horizontal movement of the second chuck set on the second guide rail set is not restricted.

[0009] Furthermore, the first chuck group includes a first connecting plate and a first chuck member arranged at both ends of the first connecting plate; the lower side of the first connecting plate is fixed on the first slider; the first chuck member includes a first fixed seat, a first slide, a second cylinder group, a first gear bar, a first toothed roller and a first clamping block; the first slide is movably mounted on the first fixed seat; the second cylinder group is arranged at one end of the first slide; the first gear bar is arranged on the first slide; the first toothed roller is arranged on the first gear bar and meshes with the first gear bar; the first clamping block is connected to both ends of the first toothed roller; the first slide is driven to move by the second cylinder group, so that the first toothed roller rotates and meshes on the first gear bar, and then the first clamping block is reversely pressed down to fix the material. The first clamping block is an n-type clamping block with a rounded arc at the top; and limit baffles are also provided at both ends of the first track. The utility model adopts a gear meshing connection method, which makes the precision higher and the tightening force and tightness more adjustable. The first clamping block is designed as an n-type clamping block, which can fasten the sheet material without any creases, thereby protecting the material.

[0010] Furthermore, the second guide rail group includes a second rail, a second slider, and a second guide plate from bottom to top; it also includes a third cylinder group arranged on one side of the second slider, and the second slider can slide horizontally between the second guide rail and the second guide plate; the second chuck group is fixed to the upper end of the second slider.

[0011] Furthermore, the second chuck group includes a second connecting plate and second chuck members arranged at both ends of the second connecting plate; the lower side of the second connecting plate is fixed on the second sliding block; the second chuck member includes a mounting seat, a driving assembly, a first clip and a second clip; the mounting seat is fixed on the second connecting plate; the driving assembly is arranged on one side of the mounting seat; the first clip is fixedly connected to the driving assembly; the second clip is fixedly connected to the mounting seat; the first clip and the second clip are clamped by driving the first clip to move up and down, thereby achieving the fastening of the material.

[0012] The second guide rail group is used to realize horizontal sliding of the entire second chuck group, and the width of the second connecting plate is greater than the distance between the two groups of the first chuck members; the second chuck members are arranged at both ends of the second connecting plate, and the height of the second chuck members is relatively high, which can be achieved in parallel with the first chuck members; and the upper and lower heights can be adjusted.

[0013] Furthermore, the driving assembly includes a fourth cylinder group, a second gear bar, a second toothed roller, a first transmission plate, a second transmission plate, a third slider and a third track connected in sequence; the first clamp is fixed to the side of the second transmission plate; the second gear bar and the second toothed roller are meshed with each other; the second gear bar is installed on the mounting seat; the second gear bar is driven to move horizontally by the fourth cylinder group, so that the second toothed roller rotates, and drives the first transmission plate to rotate, so that the second transmission plate drives the third slider to move longitudinally on the third track.

[0014] The driving assembly mainly realizes the up and down movement of the first clamp; the material is fixed by the up and down movement of the first clamp and the cooperation with the fixed second clamp, and the material is transmitted by the horizontal movement of the entire second clamp group on the second guide rail group.

[0015] Furthermore, the deflection correction component includes a linear module, a fourth slider, and a rotating seat from bottom to top; the fourth slider is arranged on the linear module and can move forward and backward relative to the linear module; it also includes a pressure plate cylinder that drives the deflection correction fixing clamp; the pressure plate cylinder is arranged on one side of the rotating seat; the deflection correction fixing clamp is fixed on the pressure plate cylinder, and the pressure plate cylinder drives the deflection correction fixing clamp to clamp or loosen; the deflection correction fixing clamp is in a 7 shape, and the material overlap detection component is arranged on one side of one of the deflection correction fixing clamps.

[0016] A material positioning point is provided on the side of the material, and the camera determines whether the material is offset through the material positioning point, and then the correction component adjusts the material to the correct position to achieve visual positioning.

[0017] The deflection correction component of the utility model is linked with the camera. After the material comes from the previous workstation to the operating table, the first slider slides forward, driving the rotating seat and the deflection correction clamp to slide toward the position of the material. The deflection correction clamp clamps the material forward and downward, and then the camera takes a picture to see whether deflection correction is needed. After the material reaches the specified position, the deflection correction clamp shrinks and fixes the material. During this process, the material overlap detection component completes the detection. The two groups of linear modules can move independently under the control of the servo motor, and the precise deflection correction positioning of the material is achieved with the cooperation of the first slider, the rotating seat and the visual positioning above. The pressure plate cylinder is used to drive the deflection correction clamp to clamp or release.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model can accurately correct the deviation of sheet materials, and complete the correction detection by shooting with a camera and using an overlapping detection component. The utility model is designed with a double-layer guide rail structure, which can realize the relatively independent operation of the first chuck group and the second chuck group, and the two groups can transmit materials separately or jointly, thereby improving the transmission efficiency. In addition, the transmission structure of the first chuck group and the second chuck group of the utility model adopts gear meshing, which has higher transmission accuracy and controllability, and better stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the double-layer feeding mechanism of the utility model.

[0021] Figure 2 The utility model is a three-dimensional structural schematic diagram showing a double-layer track of a double-layer feeding mechanism.

[0022] Figure 3 The utility model double-layer feeding mechanism shows the partial structure schematic diagram of the first chuck group.

[0023] Figure 4The utility model double-layer feeding mechanism shows a partial structural schematic diagram of the first clamping head.

[0024] Figure 5 The utility model double-layer feeding mechanism shows the structure of the second guide rail group and the second clamping head group.

[0025] Figure 6 The utility model double-layer feeding mechanism shows the partial structural schematic diagram of the second chuck group.

[0026] Figure 7 The utility model is a schematic diagram showing the partial structure of the double-layer feeding mechanism of the utility model. DETAILED DESCRIPTION

[0027] The drawings in the embodiments provide a more detailed description of the technical solutions in the embodiments of the utility model. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the utility model, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the utility model, and should not be construed as limitations on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. The embodiments of the utility model are described in detail below in conjunction with the drawings.

[0028] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] Example

[0031] A double-layer feeding mechanism, such as Figure 1As shown, it includes a door frame 1, a camera 2, a correction component 3, a guide rail component 4 and a clamping head component 5; the camera 2 is arranged in the middle of the upper side of the door frame 1; the correction component 3 is fixed on the lower side of the door frame 1; Figure 2 As shown, the guide rail assembly 4 includes a first guide rail group 6 and a second guide rail group 7; the first guide rail group 6 is arranged above the second guide rail group 7; the chuck assembly 5 includes a first chuck group 8 and a second chuck group 9; the first chuck group 8 is arranged on the first guide rail group 6, and can move horizontally on the first guide rail group 6; the second chuck group 9 is arranged on the second guide rail group 7, and can move horizontally on the second guide rail group 7; the correcting assembly 3 includes a material overlap detection assembly 31 and a correcting fixing clamp 32, and the material overlap detection assembly 31 is arranged between the two groups of correcting fixing clamps 32; the material is fixed by the correcting fixing clamp 32, and after the material overlap detection assembly 31 detects and completes the correction, the material is fixed by the first chuck group 8, and handed over to the second chuck group 9 for transmission to the next workstation; or the first chuck group 8 clamps the material for direct feeding.

[0032] like Figure 2 As shown, the guide rail assembly 4 also includes a double-layer bracket 10; the first guide rail group 6 is arranged on the upper layer of the double-layer bracket 10; the second guide rail group 7 is arranged on the lower layer of the double-layer bracket 10; Figure 3 As shown, the first guide rail group 6 includes, from bottom to top, a first rail 61, a first slider 62, and a first guide plate 63; it also includes a first cylinder group 64 provided at one side of the first slider 62, and the first slider 62 can slide horizontally between the first rail 61 and the first guide plate 63; the first chuck group 8 is fixed to the upper end of the first slider 62. The second guide rail group 7 includes, from bottom to top, a second rail 71, a second slider 72, and a second guide plate 73; it also includes a third cylinder group 74 provided at one side of the second slider 72, and the second slider 72 can slide horizontally between the second rail and the second guide plate 73; the second chuck group 9 is fixed to the upper end of the second slider 72.

[0033] like Figure 3 As shown, the first clamping head group 8 includes a first connecting plate 81 and first clamping head members 82 provided at both ends of the first connecting plate 81; the lower side of the first connecting plate 81 is fixed on the first sliding block 62; Figure 4As shown, the first clamping member 82 includes a first fixed seat 821, a first slide 822, a second cylinder group 823, a first gear bar 824, a first toothed roller 825 and a first clamping block 826; the first slide 822 is movably mounted on the first fixed seat 821; the second cylinder group 823 is arranged at one end of the first slide 822; the first gear bar 824 is arranged on the first slide 822; the first toothed roller 825 is arranged on the first gear bar 824 and meshes with the first gear bar 824; the first clamping block 826 is connected to both ends of the first toothed roller 825; the first slide 822 is driven to move by the second cylinder group 823, so that the first toothed roller 825 rotates and meshes on the first gear bar 824, and then the first clamping block 826 is reversely pressed downward to fix the material, and the first clamping block 826 is an n-type clamping block with a rounded arc at the top; combined with Figure 3 As shown, limit baffles 20 are further provided at both ends of the first track 61 .

[0034] Combination Figure 5 As shown, the second clamping assembly 9 includes a second connecting plate 91 and second clamping members 92 disposed at both ends of the second connecting plate 91; the lower side of the second connecting plate 91 is fixed to the second slider 72; the second clamping member 92 includes a mounting seat 93, a driving assembly 94, a first clamping piece 95 and a second clamping piece 96; the mounting seat 93 is fixed to the second connecting plate 91; the driving assembly 94 is disposed on one side of the mounting seat 93; the first clamping piece 95 is fixedly connected to the driving assembly 94; the second clamping piece 96 is fixedly connected to the mounting seat 93; the first clamping piece 95 and the second clamping piece 96 are clamped by driving the first clamping piece 95 to move up and down, thereby achieving the fastening of the material. Figure 5 As shown, the second guide rail group 7 is used to realize the horizontal sliding of the entire second chuck group 9, the width of the second connecting plate 91 is greater than the distance between the two groups of the first chuck members 82; the second chuck members 92 are arranged at both ends of the second connecting plate 91, and the second chuck members 92 are relatively high and can be level with the first chuck members 82; and the vertical height adjustment can be realized. The design of the double-layer bracket 10 facilitates the installation of the two groups of guide rails; the width of the second guide rail group 7 located at the bottom is greater than the first guide rail group 6, so that the horizontal movement of the second chuck group 9 in the second guide rail group 7 is not restricted.

[0035] Combination Figure 6As shown, the driving assembly 94 includes a fourth cylinder group 941, a second gear bar 942, a second toothed roller 943, a first transmission plate 944, a second transmission plate 945, a third slider 946 and a third track 947 which are connected in sequence; the first clamp 95 is fixed to the side of the second transmission plate 945; the second gear bar 942 and the second toothed roller 943 are meshed with each other; the second gear bar 942 is installed on the mounting seat 93; the second gear bar 942 is driven to move horizontally by the fourth cylinder group 941, so that the second toothed roller 943 rotates, and drives the first transmission plate 944 to rotate, so that the second transmission plate 945 drives the third slider 946 to move longitudinally on the third track 947.

[0036] like Figure 7 As shown, the deflection correction component 3 includes a linear module 33, a fourth slider 34, and a rotating seat 35 from bottom to top; the fourth slider 34 is arranged on the linear module 33 and can move forward and backward relative to the linear module 33; it also includes a pressure plate cylinder 36 that drives the deflection correction fixing clamp 32; the pressure plate cylinder 36 is arranged on one side of the rotating seat 35; the deflection correction fixing clamp 32 is fixed on the pressure plate cylinder 36, and the pressure plate cylinder 36 drives the deflection correction fixing clamp 32 to clamp or release; the deflection correction fixing clamp 32 is in a 7-shaped shape, and the material overlap detection component 31 is arranged on one side of the deflection correction fixing clamp 32. A material positioning point is arranged on the side of the material, and the camera 2 determines whether the material is offset through the material positioning point, and then the deflection correction component 3 adjusts it to the correct position to achieve visual positioning.

[0037] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model. Those skilled in the art can also make other changes within the spirit of the utility model and apply them to the design of the utility model, as long as they do not deviate from the technical effects of the utility model. These changes made according to the spirit of the utility model should be included in the scope of protection claimed by the utility model.

Claims

1. A double-layer feeding mechanism, characterized in that: It comprises a door frame (1), a camera (2), a deviation correction component (3), a guide rail component (4) and a clamping head component (5); The camera (2) is arranged at the middle part of the upper side of the door frame (1); The deviation-correcting component (3) is fixed on the lower side of the door frame (1); The guide rail assembly (4) comprises a first guide rail group (6) and a second guide rail group (7); the first guide rail group (6) is arranged above the second guide rail group (7); The chuck assembly (5) comprises a first chuck group (8) and a second chuck group (9); the first chuck group (8) is arranged on the first guide rail group (6) and can move horizontally on the first guide rail group (6); the second chuck group (9) is arranged on the second guide rail group (7) and can move horizontally on the second guide rail group (7); The deviation correction component (3) comprises a material overlap detection component (31) and a deviation correction fixing clamp (32), wherein the material overlap detection component (31) is arranged between two groups of the deviation correction fixing clamps (32); The material is fixed by the deflection correction fixing clamp (32), and after being detected and deflected by the material overlap detection component (31), the material is fixed by the first chuck group (8) and handed over to the second chuck group (9) for transmission to the next workstation; or the first chuck group (8) clamps the material and feeds it directly.

2. The double-layer feeding mechanism according to claim 1, characterized in that: The guide rail assembly (4) also includes a double-layer bracket (10); the first guide rail group (6) is arranged on the upper layer of the double-layer bracket (10); the second guide rail group (7) is arranged on the lower layer of the double-layer bracket (10); the first guide rail group (6) includes, from bottom to top, a first rail (61), a first slider (62), and a first guide plate (63); and also includes a first cylinder group (64) arranged on one side of the first slider (62), and the first slider (62) can slide horizontally between the first rail (61) and the first guide plate (63); the first chuck group (8) is fixed to the upper end of the first slider (62).

3. The double-layer feeding mechanism according to claim 2, characterized in that: The first chuck group (8) comprises a first connecting plate (81) and first chuck members (82) arranged at two ends of the first connecting plate (81); the lower side of the first connecting plate (81) is fixed on the first sliding block (62); The first clamping head member (82) comprises a first fixed seat (821), a first slide seat (822), a second cylinder group (823), a first gear bar (824), a first toothed roller (825) and a first clamping block (826); the first slide seat (822) is movably mounted on the first fixed seat (821); the second cylinder group (823) is arranged at one end of the first slide seat (822); the first gear bar (824) is arranged on the first slide seat (822); The first toothed roller (825) is arranged on the first gear bar (824) and meshes with the first gear bar (824); the first clamping block (826) is connected to both ends of the first toothed roller (825); the first slide seat (822) is driven to move by the second cylinder group (823), so that the first toothed roller (825) rotates and meshes on the first gear bar (824), and then the first clamping block (826) is pressed downward in the reverse direction to fix the material.

4. The double-layer feeding mechanism according to claim 3, characterized in that: The first clamping block (826) is an n-shaped clamping block, and the top is a rounded arc shape; and limiting baffles (20) are also provided at both ends of the first track (61).

5. The double-layer feeding mechanism according to claim 1, characterized in that: The second guide rail group (7) comprises, from bottom to top, a second rail (71), a second slider (72), and a second guide plate (73); it also comprises a third cylinder group (74) arranged on one side of the second slider (72); the second slider (72) can slide horizontally between the second guide rail and the second guide plate (73); the second chuck group (9) is fixed to the upper end of the second slider (72).

6. The double-layer feeding mechanism according to claim 5, characterized in that: The second chuck group (9) comprises a second connecting plate (91) and second chuck members (92) arranged at two ends of the second connecting plate (91); the lower side of the second connecting plate (91) is fixed on the second sliding block (72); The second clamping member (92) comprises a mounting seat (93), a driving assembly (94), a first clamping piece (95) and a second clamping piece (96); the mounting seat (93) is fixed on the second connecting plate (91); the driving assembly (94) is arranged on one side of the mounting seat (93); the first clamping piece (95) is fixedly connected to the driving assembly (94); the second clamping piece (96) is fixedly connected to the mounting seat (93); the first clamping piece (95) and the second clamping piece (96) are clamped by driving the first clamping piece (95) to move up and down, thereby achieving the tightening of the material.

7. The double-layer feeding mechanism according to claim 6, characterized in that: The driving assembly (94) comprises a fourth cylinder group (941), a second gear bar (942), a second toothed roller (943), a first transmission plate (944), a second transmission plate (945), a third slider (946) and a third track (947) which are connected in sequence; The first clamping piece (95) is fixed to the side of the second transmission piece (945); The second gear bar (942) and the second toothed roller (943) are meshed with each other; the second gear bar (942) is mounted on the mounting seat (93); the second gear bar (942) is driven to move horizontally by the fourth cylinder group (941), so that the second toothed roller (943) rotates, and drives the first transmission plate (944) to rotate, so that the second transmission plate (945) drives the third slider (946) to move longitudinally on the third track (947).

8. The double-layer feeding mechanism according to claim 1, characterized in that: The deflection-correcting assembly (3) further comprises, from bottom to top, a linear module (33), a fourth slider (34), and a rotating seat (35); the fourth slider (34) is arranged on the linear module (33) and can move forward and backward relative to the linear module (33); and further comprises a press plate cylinder (36) for driving the deflection-correcting fixing clamp (32); The press plate cylinder (36) is arranged on one side of the rotating seat (35); the deflection correction fixing clamp (32) is fixed on the press plate cylinder (36), and the deflection correction fixing clamp (32) is driven by the press plate cylinder (36) to clamp or loosen; the deflection correction fixing clamp (32) is in a 7-shape, and the material overlap detection component (31) is arranged on one side of one of the deflection correction fixing clamps (32).

9. The double-layer feeding mechanism according to claim 1, characterized in that: A material positioning point is provided on the side of the material, and the camera (2) determines whether the material is offset through the material positioning point, and then the deviation correction component (3) adjusts the material to the correct position.