A double silo for sheet materials

Abstract

The utility model relates to the technical field of sheet material processing equipment, and discloses a double silo for sheet materials, a double silo assembly, the double silo assembly comprising a base box, two groups of first silos and second silos arranged side by side are arranged above the base box, and the bottoms of the first silos and the second silos are respectively provided with movable first lifting plates and second lifting plates. Among them, the side walls of the base box are provided with: front and rear adjustment knobs for simultaneously adjusting the longitudinal diameters of the first silo and the second silo, and left and right adjustment knobs for simultaneously adjusting the transverse diameters of the first silo and the second silo. By providing the first and second silos that can be moved laterally, the sheet materials inside are lifted, and when the sheet material lifting assembly and the first silo are feeding, the second silo can be loaded, so that loading can be realized without stopping the machine, saving working procedures. By rotating the front and rear adjustment knobs and the left and right adjustment knobs, the transverse diameter and longitudinal diameter of the two groups of silos can be adjusted at the same time, and the adjustment is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet material processing equipment, in particular to a double material bin of a close edge machine for sheet material edge wrapping. Background Art

[0002] Labels are sheet materials. During label processing and production, the edges of the labels need to be wrapped, and a close-edging machine is needed at this time.

[0003] The edge-locking machine is equipped with a silo, a retrieving mechanical arm, a visual positioning system, an overlocking machine, and a rotatable pressing head driven by a servo module. The silo is loaded with stacked sheets, which are stacked to a certain height. The sheets are lifted by a lifting assembly so that the top of the stacked sheets is always at the top port of the silo, which is convenient for the retrieving mechanical arm to retrieve the sheets.

[0004] The existing close-edging machine is generally equipped with a set of silos. When the silos are empty, the machine needs to be stopped to replenish label sheets. The silos need to be able to adjust the distance between the front and rear walls and the distance between the left and right walls to accommodate sheets of different specifications and shapes. The existing adjustment method is cumbersome and requires structural optimization. Utility Model Content

[0005] Based on this, it is necessary to provide a double silo for sheet materials to address the problems that the existing silo of the close-edged machine needs to be stopped for loading and the adjustment of the silo size is cumbersome.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double silo for sheet materials, comprising:

[0007] A double silo assembly includes a base box, above which are provided two groups of first silos and second silos arranged side by side, and the bottoms of the first silos and the second silos are provided with movable first lifting plates and second lifting plates, respectively.

[0008] Wherein, the side wall of the base box is provided with: a front and rear adjustment knob for simultaneously adjusting the longitudinal diameters of the first silo and the second silo, and a left and right adjustment knob for simultaneously adjusting the transverse diameters of the first silo and the second silo.

[0009] The sheet lifting assembly is arranged at the rear end of the double bin assembly, and the sheet lifting assembly includes a lifting rod that can move forward and backward and rise and fall, and the lifting rod is used to drive the second lifting plate and the first lifting plate to rise and fall.

[0010] The double bin assembly is laterally displaced at the front end of the sheet lifting assembly.

[0011] By adopting the above technical solution and the dual silo solution, one group of silos can be feeding while the other group of silos is loading. When the current group of silos is empty, the second group of silos can be filled to achieve non-stop loading.

[0012] The sizes of the two groups of silos can be adjusted simultaneously by adjusting the knob, and the adjustment method is simple.

[0013] In a preferred example, the utility model can be further configured as follows: a track assembly is provided at the bottom of the double-bin assembly, the track assembly includes a track and a lateral displacement cylinder, the double-bin assembly is slidably mounted on the track, and is moved back and forth along the track by the lateral displacement cylinder.

[0014] By adopting the above technical solution, on the basis of the sheet material lifting assembly being stationary, the double bin assembly is laterally displaced in front of the sheet material lifting assembly, so that material lifting can be achieved with one group.

[0015] In a preferred example, the utility model can be further configured as follows: the front and rear adjustment knobs are arranged at the front end of the base box, and the left and right adjustment knobs are arranged at the side ends of the base box.

[0016] The first material bin includes a rear first material rack, a left first material rack, a right first material rack, and a front first material rack, and the second material bin includes a left second material rack, a rear second material rack, a front second material rack, and a right second material rack. The material racks are composed of two groups of vertically parallel straight rods, and a vertical bottom plate is provided at the bottom of the material rack, and the first lifting plate and the second lifting plate are placed above the bottom plate.

[0017] The front-to-back adjustment knob simultaneously adjusts the distance between the front first rack and the rear first rack, and the distance between the front second rack and the rear second rack, and the left-to-right adjustment knob simultaneously adjusts the distance between the left first rack and the right first rack, and the distance between the left second rack and the right second rack.

[0018] By adopting the above technical solution, the longitudinal diameters of the two groups of silos are adjusted simultaneously by the front and rear adjustment knobs, and the transverse diameters of the two groups of silos are adjusted simultaneously by the left and right adjustment knobs.

[0019] In a preferred example, the utility model can be further configured as follows: a first front-to-back adjusting screw penetrating the front first material rack bottom plate and the rear first material rack bottom plate, and a second front-to-back adjusting screw penetrating the front second material rack bottom plate and the rear second material rack bottom plate are provided in the base box, and the first front-to-back adjusting screw is rotatably connected to the front first material rack bottom plate and the rear first material rack bottom plate, and the second front-to-back adjusting screw is rotatably connected to the front second material rack bottom plate and the rear second material rack bottom plate.

[0020] The thread for rotationally connecting the first front-to-back adjusting screw and the front first material rack bottom plate is opposite to the thread for rotationally connecting the first front-to-back adjusting screw and the rear first material rack bottom plate, so that when the first front-to-back adjusting screw is rotated, the front first material rack and the rear first material rack are displaced in the opposite direction to realize an opening or merging action.

[0021] The base box is also provided with two sets of guide rods which respectively penetrate the front first material rack bottom plate and the rear first material rack bottom plate, and the front second material rack bottom plate and the rear second material rack bottom plate. When the first front and rear adjusting screw rotates forwards and backwards, the front first material rack bottom plate and the rear first material rack bottom plate change between approaching and moving away states. When the second front and rear adjusting screw rotates forwards and backwards, the front second material rack bottom plate and the rear second material rack bottom plate change between approaching and moving away states.

[0022] The rotation of the front-to-back adjustment knob drives the first front-to-back adjustment screw and the second front-to-back adjustment screw to rotate simultaneously.

[0023] In a preferred example, the utility model can be further configured as follows: the front and rear adjustment knob is arranged at the front end center of the base box, the front and rear adjustment knob is connected to a rotating shaft arranged inside the base box, the rear end of the rotating shaft is provided with two driving gears arranged along its length direction, the rear end of the first front and rear adjustment screw is provided with a first driven pulley, and the rear end of the second front and rear adjustment screw is provided with a second driven pulley, and the two driving gears are respectively connected to the first driven pulley and the second driven pulley through belts.

[0024] By adopting the above technical solution, the longitudinal diameters of the two silos can be adjusted by rotating the front and rear adjustment knobs.

[0025] In a preferred example, the utility model can be further configured as follows: the left and right adjustment knobs are connected to a left and right adjustment screw arranged inside the base box, and the left and right adjustment screws pass through the right first material rack bottom plate, the left first material rack bottom plate, the right second material rack bottom plate, and the left second material rack bottom plate, and are threadedly connected.

[0026] The threads for rotationally connecting the left and right adjusting screws and the right first material rack bottom plate and the right second material rack bottom plate are opposite to the threads for rotationally connecting the left and right adjusting screws and the right second material rack bottom plate and the left second material rack bottom plate. When the left and right adjusting screws are rotated, the distance between the left first material rack and the right first material rack, and the distance between the left second material rack and the right second material rack are adjusted.

[0027] The base box is also provided with a guide rod penetrating the right first material rack bottom plate, the left first material rack bottom plate, the right second material rack bottom plate, and the left second material rack bottom plate;

[0028] When the left and right adjusting screws rotate forward and backward, the right first material rack and the left first material rack change between the approaching and distant states, and the right second material rack and the left second material rack change between the approaching and distant states.

[0029] In a preferred example, the utility model can be further configured as follows: a disc is provided at the center of each of the first lifting plate and the second lifting plate, and four annular extension rods are evenly distributed extending outward from the disc, so that the first lifting plate and the second lifting plate form a cross shape, and the extension rods extend from between the two straight rods of the material rack to the outside of the material rack.

[0030] By adopting the above technical solution, the second lifting plate and the first lifting plate are limited, and their rotation angles can be limited during lifting, so that the lifting of the sheet material is stable.

[0031] In a preferred example, the utility model can be further configured as follows: the sheet lifting assembly also includes a vertically arranged lifting servo module, a lifting seat is arranged on the lifting servo module so as to be liftable, and a telescopic cylinder is provided on the lifting seat for driving the lifting rod to move toward the double bin assembly.

[0032] In summary, the present invention includes at least one of the following beneficial technical effects:

[0033] By setting a first silo and a second silo that can be moved laterally, the sheet materials inside are lifted. When the sheet lifting component and the first silo are feeding materials, the second silo can load materials, thereby realizing non-stop loading and saving working procedures.

[0034] By rotating the front and rear adjustment knobs and the left and right adjustment knobs, the lateral diameter and longitudinal diameter of the two groups of silos can be adjusted at the same time, and the adjustment is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0036] Figure 1 It is a schematic diagram of the structure of the utility model;

[0037] Figure 2 This is a schematic diagram of the structure of the double silo assembly in the utility model;

[0038] Figure 3 It is a front view of the interior of the base box of the utility model;

[0039] Figure 4 It is a rear view of the interior of the base box of the utility model.

[0040] In the attached figure:

[0041] 1. Sheet lifting assembly; 11. Lifting servo module; 12. Lifting seat; 13. Telescopic cylinder; 14. Lifting rod; 2. Track assembly; 21. Track; 22. Lateral displacement cylinder; 3. Double silo assembly; 4. Base box; 5. First silo; 51. Rear first material rack; 52. Left first material rack; 53. Right first material rack; 54. Front first material rack; 6. Second silo; 61. Left second material rack; 62. Rear second material rack; 63. Front second material rack; 64. Right second material rack; 7. Second lifting plate; 8. First lifting plate; 9. Left and right adjustment knob; 91. Left and right adjustment screw; 10. Front and rear adjustment knob; 101. Rotating shaft; 102. Second front and rear adjustment screw; 103. First front and rear adjustment screw; 104. Driving gear; 105. Second driven pulley; 106. First driven pulley; 111. Guide rod. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] exist Figure 1-4 In the embodiment shown, the utility model provides a technical solution: a double silo for sheet materials, having the following structure:

[0044] The double silo assembly 3 includes a base box 4, on which two sets of first silos 5 and second silos 6 are arranged side by side, and movable first lifting plates 8 and second lifting plates 7 are respectively arranged at the bottom of the first silos 5 and second silos 6. The side wall of the base box 4 is provided with: a front and rear adjustment knob 10 for adjusting the longitudinal diameter of the first silo 5 and the second silo 6 at the same time, and a left and right adjustment knob 9 for adjusting the transverse diameter of the first silo 5 and the second silo 6 at the same time. The front and rear adjustment knob 10 is arranged at the front end of the base box 4, and the left and right adjustment knob 9 is arranged at the side end of the base box 4.

[0045] The first material bin 5 includes a rear first material rack 51, a left first material rack 52, a right first material rack 53, and a front first material rack 54. The second material bin 6 includes a left second material rack 61, a rear second material rack 62, a front second material rack 63, and a right second material rack 64. The material racks are composed of two groups of vertically parallel straight rods, and a vertical bottom plate is provided at the bottom of the material rack, and the first lifting plate 8 and the second lifting plate 7 are placed above the bottom plate. A disk is provided in the center of the first lifting plate 8 and the second lifting plate 7, and four annular extension rods equidistantly distributed extend outward around the disk, so that the first lifting plate 8 and the second lifting plate 7 form a cross shape, and the extension rods extend from between the two straight rods of the material rack to the outside of the material rack.

[0046] The front and rear adjustment knobs 10 simultaneously adjust the distance between the front first rack 54 and the rear first rack 51, and the distance between the front second rack 63 and the rear second rack 62, and the left and right adjustment knobs 9 simultaneously adjust the distance between the left first rack 52 and the right first rack 53, and the distance between the left second rack 61 and the right second rack 64.

[0047] The base box 4 is provided with a first front-to-back adjustment screw 103 penetrating the bottom plate of the front first material rack 54 and the bottom plate of the rear first material rack 51, and a second front-to-back adjustment screw 102 penetrating the bottom plate of the front second material rack 63 and the bottom plate of the rear second material rack 62, and the first front-to-back adjustment screw 103 is rotatably connected to the bottom plate of the front first material rack 54 and the bottom plate of the rear first material rack 51, and the second front-to-back adjustment screw 102 is rotatably connected to the bottom plate of the front second material rack 63 and the bottom plate of the rear second material rack 62. The thread for rotatably connecting the first front-to-back adjustment screw 103 and the bottom plate of the front first material rack 54 is opposite to the thread for rotatably connecting the first front-to-back adjustment screw 103 and the bottom plate of the rear first material rack 51.

[0048] Two sets of guide rods 111 are also provided in the base box 4, which respectively penetrate the bottom plate of the front first material rack 54 and the bottom plate of the rear first material rack 51, the bottom plate of the front second material rack 63 and the bottom plate of the rear second material rack 62. When the first front-to-back adjustment screw 103 rotates forward and backward, the bottom plate of the front first material rack 54 and the bottom plate of the rear first material rack 51 change between the approaching and moving away states, and when the second front-to-back adjustment screw 102 rotates forward and backward, the bottom plate of the front second material rack 63 and the bottom plate of the rear second material rack 62 change between the approaching and moving away states. The rotation of the front-to-back adjustment knob 10 drives the first front-to-back adjustment screw 103 and the second front-to-back adjustment screw 102 to rotate simultaneously. Furthermore, a front and rear adjustment knob 10 is arranged at the front end center of the base box 4, and the front and rear adjustment knob 10 is connected to a rotating shaft 101 arranged inside the base box 4. The rear end of the rotating shaft 101 is provided with two driving gears 104 arranged along its length direction, and the rear end of the first front and rear adjustment screw 103 is provided with a first driven pulley 106, and the rear end of the second front and rear adjustment screw 102 is provided with a second driven pulley 105. The two driving gears 104 are respectively connected to the first driven pulley 106 and the second driven pulley 105 through belts.

[0049] The left-right adjustment knob 9 is connected to a left-right adjustment screw 91 arranged inside the base box 4, and the left-right adjustment screw 91 passes through the bottom plate of the right first material rack 53, the bottom plate of the left first material rack 52, the bottom plate of the right second material rack 64, and the bottom plate of the left second material rack 61, and is threadedly connected. The thread of the left-right adjustment screw 91 and the bottom plate of the right first material rack 53 and the bottom plate of the right second material rack 64 are rotatably connected, and the thread of the left-right adjustment screw 91 and the bottom plate of the right second material rack 64 and the bottom plate of the left second material rack 61 are opposite. The base box 4 is also provided with a guide rod 111 passing through the bottom plate of the right first material rack 53, the bottom plate of the left first material rack 52, the bottom plate of the right second material rack 64, and the bottom plate of the left second material rack 61. When the left-right adjustment screw 91 rotates forward and backward, the right first material rack 53 and the left first material rack 52 are switched between the approaching and distant states, and the right second material rack 64 and the left second material rack 61 are switched between the approaching and distant states.

[0050] The sheet lifting assembly 1 is arranged at the rear end of the double bin assembly 3. The sheet lifting assembly 1 includes a lifting rod 14 that can move forward and backward and lift up and down. The lifting rod 14 is used to drive the second lifting plate 7 and the first lifting plate 8 to lift up and down. Further, the sheet lifting assembly 1 also includes a vertically arranged lifting servo module 11. The lifting servo module 11 is provided with a lifting seat 12 that can be lifted and lowered. The lifting seat 12 is provided with a telescopic cylinder 13 for driving the lifting rod 14 to move toward the double bin assembly 3. The lifting rod 14 can be extended to the bottom of the second lifting plate 7 or the first lifting plate 8 to lift it.

[0051] A track assembly 2 is provided at the bottom of the double-bin assembly 3, and the track assembly 2 includes a track 21 and a lateral displacement cylinder 22. The double-bin assembly 3 is slidably installed on the track 21, and the lateral displacement cylinder 22 is used to move back and forth along the track 21, so that the double-bin assembly 3 can be laterally displaced at the front end of the sheet lifting assembly 1.

[0052] The specific working principle of the utility model is explained in detail below: by rotating the front and rear adjustment knobs 10, the distance between the rear second material rack 62 and the front second material rack 63, and the distance between the rear first material rack 51 and the front first material rack 54 are adjusted simultaneously; by rotating the left and right adjustment knobs 9, the distance between the left second material rack 61 and the right second material rack 64, and the distance between the left first material rack 52 and the right first material rack 53 are adjusted simultaneously to adapt to the shape and specifications of the sheet material, and the sheet material will not be positionally offset in the silo.

[0053] Adjustment principle of the front and rear adjustment knob 10: Rotate the front and rear adjustment knob 10 to drive the rotating shaft 101 to rotate, and the driving gear 104 rotates synchronously. Through the belt, the second driven pulley 105 and the first driven pulley 106 are driven to rotate in the same direction, so that the second front and rear adjustment screw 102 and the first front and rear adjustment screw 103 rotate in the same direction, thereby adjusting the distance between the rear first material rack 51 and the front first material rack 54, and the distance between the rear second material rack 62 and the front second material rack 63.

[0054] Adjustment principle of the left-right adjustment knob 9: Rotate the left-right adjustment knob 9 to drive the left-right adjustment screw 91 to rotate, thereby adjusting the distance between the left first material rack 52 and the right first material rack 53, and the distance between the left second material rack 61 and the right second material rack 64.

[0055] Fill the first bin 5 with sheets, the lifting servo module 11 drives the lifting seat 12 to lift, the telescopic cylinder 13 drives the lifting rod 14 to extend and retract, the lifting rod 14 is extended to the bottom of the first lifting plate 8, and the first lifting plate 8 is lifted up. The top of the sheet is always placed on the top of the first bin 5, which is convenient for the material taking machine to absorb. While the first bin 5 is feeding, the second bin 6 is loading. When the first bin 5 is empty, the lifting rod 14 is lowered, and the first lifting plate 8 is placed at the bottom of the first bin 5, and the lifting rod 14 is retracted. The second bin 6 filled with sheets is transferred to the front of the sheet lifting assembly 1 through the lateral displacement cylinder 22, and the lifting rod 14 is extended to the second lifting plate 7, driving the second lifting plate 7 to rise, the second bin 6 starts to feed, and the first bin 5 is loaded. The first bin 5 and the second bin 6 work alternately to achieve non-stop loading.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double silo for sheet materials, characterized in that: include: A double silo assembly (3), the double silo assembly (3) comprising a base box (4), two groups of first silos (5) and second silos (6) arranged side by side are arranged above the base box (4), and the bottoms of the first silos (5) and the second silos (6) are respectively provided with movable first lifting plates (8) and second lifting plates (7); wherein the side walls of the base box (4) are provided with: front and rear adjustment knobs (10) for simultaneously adjusting the longitudinal diameters of the first silo (5) and the second silo (6), and left and right adjustment knobs (9) for simultaneously adjusting the transverse diameters of the first silo (5) and the second silo (6); A sheet material lifting assembly (1), the sheet material lifting assembly (1) being arranged at the rear end of the double material bin assembly (3), the sheet material lifting assembly (1) comprising a lifting rod (14) which can be moved forward and backward and raised and lowered, the lifting rod (14) being used to drive the second lifting plate (7) and the first lifting plate (8) to rise and fall; The double bin assembly (3) is laterally displaced at the front end of the sheet lifting assembly (1).

2. According to claim 1, a double silo for sheet materials, characterized in that: A track assembly (2) is provided at the bottom of the double-bin assembly (3), and the track assembly (2) comprises a track (21) and a transverse displacement cylinder (22). The double-bin assembly (3) is slidably mounted on the track (21) and is moved back and forth along the track (21) by the transverse displacement cylinder (22).

3. The double silo for sheet materials according to claim 1, characterized in that: The front and rear adjustment knob (10) is arranged at the front end of the base box (4), and the left and right adjustment knob (9) is arranged at the side end of the base box (4); the first material bin (5) includes a rear first material rack (51), a left first material rack (52), a right first material rack (53), and a front first material rack (54); the second material bin (6) includes a left second material rack (61), a rear second material rack (62), a front second material rack (63), and a right second material rack (64); the material racks are composed of two groups of vertically parallel straight rods, and a vertical bottom plate is provided at the bottom of the material rack; the first lifting plate (8) and the second lifting plate (7) are placed above the bottom plate; The front-to-back adjustment knob (10) simultaneously adjusts the distance between the front first material rack (54) and the rear first material rack (51), and the distance between the front second material rack (63) and the rear second material rack (62); the left-to-right adjustment knob (9) simultaneously adjusts the distance between the left first material rack (52) and the right first material rack (53), and the distance between the left second material rack (61) and the right second material rack (64).

4. A double silo for sheet materials according to claim 3, characterized in that: The base box (4) is provided with a first front-to-back adjusting screw (103) penetrating the bottom plate of the front first material rack (54) and the bottom plate of the rear first material rack (51), and a second front-to-back adjusting screw (102) penetrating the bottom plate of the front second material rack (63) and the bottom plate of the rear second material rack (62); the first front-to-back adjusting screw (103) is rotatably connected to the bottom plate of the front first material rack (54) and the bottom plate of the rear first material rack (51), and the second front-to-back adjusting screw (102) is rotatably connected to the bottom plate of the front second material rack (63) and the bottom plate of the rear second material rack (62); The thread for rotationally connecting the first front-to-back adjusting screw (103) and the bottom plate of the front first material rack (54) is opposite to the thread for rotationally connecting the first front-to-back adjusting screw (103) and the bottom plate of the rear first material rack (51); The base box (4) is further provided with two sets of guide rods (111) respectively penetrating the bottom plate of the front first material rack (54) and the bottom plate of the rear first material rack (51), and the bottom plate of the front second material rack (63) and the bottom plate of the rear second material rack (62); when the first front-to-back adjusting screw rod (103) rotates forwards and backwards, the bottom plate of the front first material rack (54) and the bottom plate of the rear first material rack (51) change between the approaching and moving away states; when the second front-to-back adjusting screw rod (102) rotates forwards and backwards, the bottom plate of the front second material rack (63) and the bottom plate of the rear second material rack (62) change between the approaching and moving away states; The rotation of the front-to-back adjustment knob (10) drives the first front-to-back adjustment screw (103) and the second front-to-back adjustment screw (102) to rotate simultaneously.

5. A double silo for sheet materials according to claim 4, characterized in that: The front-to-back adjustment knob (10) is arranged at the front center of the base box (4), and the front-to-back adjustment knob (10) is connected to a rotating shaft (101) arranged inside the base box (4). The rear end of the rotating shaft (101) is provided with two driving gears (104) arranged along its length direction. The rear end of the first front-to-back adjustment screw (103) is provided with a first driven pulley (106), and the rear end of the second front-to-back adjustment screw (102) is provided with a second driven pulley (105). The two driving gears (104) are respectively connected to the first driven pulley (106) and the second driven pulley (105) through belts.

6. The double silo for sheet materials according to claim 3, characterized in that: The left-right adjustment knob (9) is connected to a left-right adjustment screw (91) arranged inside the base box (4); the left-right adjustment screw (91) passes through the bottom plate of the right first material rack (53), the bottom plate of the left first material rack (52), the bottom plate of the right second material rack (64), and the bottom plate of the left second material rack (61), and is threadedly connected; The threads for rotationally connecting the left and right adjusting screws (91) and the bottom plate of the right first material rack (53) and the bottom plate of the right second material rack (64) are opposite to the threads for rotationally connecting the left and right adjusting screws (91) and the bottom plate of the right second material rack (64) and the bottom plate of the left second material rack (61); The base box (4) is further provided with a guide rod (111) penetrating the bottom plate of the right first material rack (53), the bottom plate of the left first material rack (52), the bottom plate of the right second material rack (64), and the bottom plate of the left second material rack (61); When the left and right adjusting screws (91) rotate forward and backward, the right first material rack (53) and the left first material rack (52) change between approaching and moving away states, and the right second material rack (64) and the left second material rack (61) change between approaching and moving away states.

7. The double silo for sheet materials according to claim 3, characterized in that: A circular disc is provided at the center of the first lifting plate (8) and the second lifting plate (7), and four annular extension rods are evenly distributed around the circular disc, so that the first lifting plate (8) and the second lifting plate (7) form a cross shape, and the extension rods extend from between the two straight rods of the material rack to the outside of the material rack.

8. The double silo for sheet materials according to claim 1, characterized in that: The sheet lifting assembly (1) further comprises a vertically arranged lifting servo module (11), on which a lifting seat (12) is arranged to be liftable, and on which a telescopic cylinder (13) is arranged for driving a lifting rod (14) to move toward the double bin assembly (3).

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