Self-adaptive waste textile flat cutting device

Abstract

The present application belongs to the technical field of textile cutting equipment, and particularly relates to a self-adaptive waste textile flat cutting device, which comprises a rack, a conveying mechanism, a lower feeding roller, an upper feeding roller, an upper compression roller, a lower compression roller, a ring-shaped cutter mechanism and a cutter holder. The conveying mechanism is a belt conveying mechanism, the top surface of the belt is flush with the top surface of the lower feeding roller. The ring-shaped cutter mechanism is installed on the rack through the cutter holder, and the cutting plane of the ring-shaped cutter belt is located between the upper compression roller and the lower compression roller. The upper feeding roller is installed on the rack through a first up-down adjusting mechanism. The present application can respond to the thickness change of the dense fabric of the outer layer and the fluffy fiber of the inner layer of the waste core in real time, dynamically adjust the roller gap of the feeding roller group and the compression roller group, and solve the problems of cutting misplacement, burr and partial uncutting caused by the fixed roller gap of the traditional flat cutting device.

Description

Technical Field

[0001] This invention belongs to the technical field of textile cutting equipment, and specifically relates to an adaptive waste textile flat cutting device. Background Technology

[0002] Waste textiles are an important component of urban solid waste. Among them, waste quilt cores, as a typical household textile waste, are characterized by large output, high fiber content, and significant resource potential, making them a key research target in the field of waste textile recycling. Structurally, waste quilt cores exhibit a typical double-layer composite insulation configuration: the outer layer is a dense covering fabric layer made of cotton or chemical fibers using woven or non-woven processes, possessing a certain mechanical strength and surface integrity, primarily serving protective, shaping, and barrier functions; the inner layer is a loose and fluffy fiber filling layer composed of cotton, chemical fibers, or their blended fibers, achieving insulation through air retention, exhibiting significant compressibility and dynamic thickness variation characteristics; the two layers are usually combined through stitching, gluing, or mechanical entanglement (such as needle punching reinforcement) to form a strong, structurally stable composite; While the aforementioned composite material offers advantages in terms of performance, it presents significant challenges to subsequent recycling and processing. In particular, during the dismantling and pre-treatment stage, existing flat-cutting devices generally employ a fixed-gap upper and lower roller structure. The roller gap is not adjustable and cannot respond to changes in the structural thickness of waste quilt cores caused by differences in loft, compression deformation, and batch-to-batch thickness fluctuations. In the actual cutting process, when the quilt core enters the cutting roller area, the outer dense fabric is relatively rigid and deforms little, while the inner loose fiber layer is easily compressed instantaneously and rebounds. This results in uneven distribution of clamping and shearing forces on the material by the upper and lower rollers, leading to defects such as inconsistent cutting depth, tilted cross-section, rough edges, miscutting of inner and outer layers, and even incomplete cutting in some areas. These defects seriously affect the stability and recycling rate of subsequent processing and reuse procedures. Summary of the Invention

[0003] (a) Technical problems to be solved To overcome the shortcomings of existing flat cutting devices in processing soft and hard composite textiles such as waste quilt cores, which suffer from poor cutting quality due to the inability of the fixed roller gap to adapt to the dynamic changes in material thickness, this invention provides a flat cutting device that can adaptively adjust the roller gap. It adapts to waste textiles and dynamically adjusts according to the material thickness to ensure that the cutting plane cuts into the center line of the waste quilt core's thickness.

[0004] (II) Technical Solution This invention is achieved through the following technical solution: This invention proposes an adaptive waste textile flat cutting device, including a frame, a conveying mechanism, a lower feed roller, an upper feed roller, an upper pressure roller, a lower pressure roller, an annular cutting mechanism, and a cutter holder; the conveying mechanism is a belt conveying mechanism (composed of a driving wheel, a belt, and a driven wheel), with the top surface of the belt flush with the top surface of the lower feed roller; the annular cutting mechanism (composed of an annular cutting belt, a driving wheel, and a driven wheel) is mounted on the frame via the cutter holder, and the cutting plane of the annular cutting belt is located between the upper pressure roller and the lower pressure roller; The upper feed roller is mounted on the frame via a first up-and-down adjustment mechanism; The first up-and-down adjustment mechanism includes a fixed straight plate, a slider, a first elastic element, and a positioning block; A fixed straight plate is fixed to the frame and is provided with a vertical slide groove. The slider slides in conjunction with the vertical slide groove. The positioning block is located above the vertical slide groove and is connected to the slider through the first elastic element. The upper feed roller is supported on the slider by a bearing, so that the upper feed roller can elastically float in the vertical direction when the material thickness changes. The upper pressure roller is mounted on the first upper and lower adjustment mechanism via a second upper and lower adjustment mechanism; The second up-down adjustment mechanism includes an upper swing arm, a connecting swing piece, and an upper spring telescopic assembly. The upper swing arm is hinged to the upper pressure roller and the upper feed roller at both ends, respectively. The upper spring telescopic assembly is hinged to the upper swing arm at one end and to the connecting swing piece at the other end. The connecting swing piece is fixed to the fixed straight plate. When the upper pressure roller is pressed, the upper spring telescopic assembly generates compression deformation and outputs adjustable downward pressure. The lower pressure roller is mounted on the frame via a third up-and-down adjustment mechanism; The third up-down adjustment mechanism includes a lower swing arm and a lower spring telescopic assembly. The lower swing arm is hinged to the lower pressure roller and the lower feed roller at both ends, respectively. The lower spring telescopic assembly is hinged to the lower swing arm at one end and to the frame at the other end. When the lower pressure roller is pressed, the lower spring telescopic assembly generates compression deformation and outputs adjustable upper pressure. The upper spring telescopic assembly and the lower spring telescopic assembly have the same structure, both consisting of an upper hinge joint, a locking nut, a guide post, a guide sleeve, a second elastic element, a lower spring seat, and a lower hinge joint; The upper hinge joint is fixed to the guide post; The bottom end of the guide sleeve has an open structure, and the lower spring seat is fixedly connected to the bottom end of the guide sleeve; The guide post penetrates into the guide sleeve and is slidably connected to the guide sleeve. The structure of the guide post located inside the guide sleeve is provided with a T-shaped block, which is snapped into the guide sleeve. The T-shaped block is connected to the lower spring seat through a second elastic element. The bottom end of the lower spring seat is connected to a lower hinge joint; The guide post is provided with a backstop nut on the side away from the guide sleeve, and the backstop nut is in contact with the upper hinge joint. The upper hinge joint is hinged to the upper swing arm, and the lower hinge joint is hinged to the connecting swing piece; The upper hinge joint of the lower spring telescopic assembly is hinged to the lower swing arm, and the lower hinge joint of the lower spring telescopic assembly is hinged to the frame.

[0005] Preferably, the first up-down adjustment mechanism further includes mounting bearings, both the fixed straight plate and the slider are mounted with mounting bearings, and the upper feed roller is connected to the mounting bearings.

[0006] Preferably, the upper spring telescopic assembly exerts a downward vertical pressure F1 on the upper pressure roller, and the lower spring telescopic assembly exerts an upward vertical pressure F2 on the lower pressure roller. The gravity G1 of the entire upper pressure roller (including the upper pressure roller body and related bearing accessories); The gravity G2 of the entire lower pressure roller (including the lower pressure roller body and related bearing accessories); Adjust the initial pressure of the upper spring telescopic assembly and the lower spring telescopic assembly relative to the upper pressure roller assembly and the lower pressure roller assembly respectively, so as to satisfy the relationship: (F1 + G1 + G2) / F2 = a; Where a is 0.8–1.2.

[0007] Preferably, the optimal value of a is 1.

[0008] Preferably, a limiting block is provided between the upper swing arm and the lower swing arm, and the limiting block is installed on the frame.

[0009] Preferably, the conveying mechanism, lower feed roller, upper feed roller, upper pressure roller, lower pressure roller, and annular cutter mechanism are arranged sequentially in the horizontal direction; the lower feed roller and the upper feed roller constitute a feed roller group, the upper pressure roller and the lower pressure roller constitute a pressure roller group, and the cutting plane of the annular cutter belt is perpendicular to the axis of each roller and located on the center line of the roller gap of the pressure roller group, so that when the waste quilt core is cut, its thickness direction is perpendicular to the roller axis, and the cutting plane cuts into the center line area of ​​the thickness of the waste quilt core.

[0010] Preferably, the frame is equipped with a drive motor, and the conveying mechanism, the lower feed roller, the upper feed roller, the upper pressure roller, the lower pressure roller, and the annular cutter mechanism are all driven by separate drive motors or by a linkage motor mechanism. The linkage motor mechanism is a chain drive mechanism or a belt drive mechanism; The upper feed roller and the upper pressure roller are connected by a chain for transmission, and the lower pressure roller and the lower feed roller are connected by a chain for transmission.

[0011] Preferably, the distance between the annular cutter belt and the center line of the roller gap of the pressure roller group is 5-40mm, preferably 20mm; The closest distance between the upper and lower pressure rollers is 0-20mm, preferably 5mm.

[0012] Preferably, the linear velocity ratio between the pressure roller group and the feed roller group is 1-1.5, more preferably 1.2.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention has the following advantages: In this invention, the elastic floating pre-feeding of the first up-down adjustment mechanism and the bidirectional telescopic linkage of the second and third up-down adjustment mechanisms can respond in real time to the thickness changes of the outer dense fabric and inner fluffy fiber of the waste quilt core, and dynamically adjust the roller gap of the feeding roller group and the pressure roller group, thus solving the problems of cutting misalignment, rough edges, and partial uncutting caused by the fixed roller gap in traditional flat cutting devices. In addition, the elastic floating structure of the upper feed roller provides adjustable preload through the first elastic element, which realizes stable feeding of the outer layer fabric of the quilt core with different thicknesses. Furthermore, the upper and lower spring telescopic components adopt a completely symmetrical structural design, and through the mechanical balance control of (F1+G1+G2) / F2=a, it is ensured that the resultant force center of the pressure roller group always coincides with the thickness center line of the waste quilt core, and the cutting plane of the annular cutter belt accurately cuts into the thickness center line area of ​​the quilt core. Attached Figure Description

[0014] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a three-dimensional structural diagram of the flat cutting device of the present invention.

[0015] Figure 2 This is an enlarged structural schematic diagram of the first up-down adjustment mechanism of the present invention.

[0016] Figure 3 This is an enlarged structural schematic diagram of the second up-down adjustment mechanism of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the spring telescopic assembly of the present invention.

[0018] Figure 5 This is a schematic diagram illustrating the working principle of the flat cutting device of the present invention.

[0019] The labels in the attached diagram are as follows: 1-Frame, 2-Drive motor, 3-Conveying mechanism, 4-Lower feed roller, 5-Upper feed roller, 6-First up / down adjustment mechanism, 61-Mounting bearing, 62-Slider, 63-Fixed straight plate, 64-First elastic element, 65-Positioning block, 66-Vertical groove, 7-Upper pressure roller, 8-Second up / down adjustment mechanism, 81-Upper swing arm, 82-Connecting swing element, 83-Upper spring telescopic assembly, 831-Upper hinge joint, 832-Anti-reverse nut, 833-Guide post, 834-Guide sleeve, 835-Second elastic element, 836-Lower spring seat, 837-Lower hinge joint, 9-Third up / down adjustment mechanism, 91-Lower swing arm, 92-Lower spring telescopic assembly, 10-Lower pressure roller, 11-Annular cutter mechanism, 12-Knife holder, 13-Limiting block, a-Waste quilt core. Detailed Implementation

[0020] In this technical solution: To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Example, refer to Figure 1 , 2 As shown in Figure 3, this invention proposes an adaptive waste textile flat cutting device, including a frame, a conveying mechanism, a lower feed roller, an upper feed roller, an upper pressure roller, a lower pressure roller, an annular cutting mechanism, and a cutter holder; the conveying mechanism is a belt conveying mechanism (composed of a driving wheel, a belt, and a driven wheel), with the top surface of the belt flush with the top surface of the lower feed roller; the annular cutting mechanism (composed of an annular cutting belt, a driving wheel, and a driven wheel) is mounted on the frame via the cutter holder, and the cutting plane of the annular cutting belt is located between the upper pressure roller and the lower pressure roller; The upper feed roller is mounted on the frame via a first up-and-down adjustment mechanism; The first up-and-down adjustment mechanism includes a fixed straight plate, a slider, a first elastic element, and a positioning block; A fixed straight plate is fixed to the frame and is provided with a vertical slide groove. The slider slides in conjunction with the vertical slide groove. The positioning block is located above the vertical slide groove and is connected to the slider through the first elastic element. The upper feed roller is supported on the slider by a bearing, so that the upper feed roller can elastically float in the vertical direction when the material thickness changes. The upper pressure roller is mounted on the first upper and lower adjustment mechanism via a second upper and lower adjustment mechanism; The second up-down adjustment mechanism includes an upper swing arm, a connecting swing piece, and an upper spring telescopic assembly. The upper swing arm is hinged to the upper pressure roller and the upper feed roller at both ends, respectively. The upper spring telescopic assembly is hinged to the upper swing arm at one end and to the connecting swing piece at the other end. The connecting swing piece is fixed to the fixed straight plate. When the upper pressure roller is pressed, the upper spring telescopic assembly generates compression deformation and outputs adjustable downward pressure. The lower pressure roller is mounted on the frame via a third up-and-down adjustment mechanism; The third up-down adjustment mechanism includes a lower swing arm and a lower spring telescopic assembly. The lower swing arm is hinged to the lower pressure roller and the lower feed roller at both ends, respectively. The lower spring telescopic assembly is hinged to the lower swing arm at one end and to the frame at the other end. When the lower pressure roller is pressed, the lower spring telescopic assembly generates compression deformation and outputs adjustable upper pressure. Reference Figure 4 As shown, the upper spring telescopic assembly and the lower spring telescopic assembly have the same structure, both consisting of an upper hinge joint, a locking nut, a guide post, a guide sleeve, a second elastic element, a lower spring seat, and a lower hinge joint. The upper hinge joint is fixed to the guide post; The bottom end of the guide sleeve has an open structure, and the lower spring seat is fixedly connected to the bottom end of the guide sleeve; The guide post penetrates into the guide sleeve and is slidably connected to the guide sleeve. The structure of the guide post located inside the guide sleeve is provided with a T-shaped block, which is snapped into the guide sleeve. The T-shaped block is connected to the lower spring seat through a second elastic element. The bottom end of the lower spring seat is connected to a lower hinge joint; The guide post is provided with a backstop nut on the side away from the guide sleeve, and the backstop nut is in contact with the upper hinge joint. The upper hinge joint is hinged to the upper swing arm, and the lower hinge joint is hinged to the connecting swing piece; The upper hinge joint of the lower spring telescopic assembly is hinged to the lower swing arm, and the lower hinge joint of the lower spring telescopic assembly is hinged to the frame. The specific structures of the upper and lower spring telescopic components ensure that both the upper spring telescopic component 83 and the lower spring telescopic component 92 can slide stably, be reliably limited, and accurately reset when under pressure, preventing the guide post 833 from dislodging from the guide sleeve 834, the T-block from slipping off, or the second elastic element 835 from plastic deformation.

[0022] The first up-down adjustment mechanism also includes mounting bearings, with mounting bearings installed on both the fixed straight plate and the slider, and the upper feed roller connected to the mounting bearings.

[0023] The upper spring telescopic assembly exerts a downward vertical pressure F1 on the upper pressure roller, and the lower spring telescopic assembly exerts an upward vertical pressure F2 on the lower pressure roller. The gravity G1 of the entire upper pressure roller (including the upper pressure roller body and related bearing accessories); The gravity G2 of the entire lower pressure roller (including the lower pressure roller body and related bearing accessories); Adjust the initial pressure of the upper spring telescopic assembly and the lower spring telescopic assembly relative to the upper pressure roller assembly and the lower pressure roller assembly respectively, so as to satisfy the relationship: (F1 + G1 + G2) / F2 = a; Where a is 0.8–1.2, when a is 1, the total downward force on the upper pressure roller 7 is equal to the total upward force on the lower pressure roller 10, the center of the combined force of the two rollers coincides, the center line of the roller gap is consistent with the center line of the thickness of the waste quilt core a, the annular cutter of the annular cutter mechanism 11 has a cutting plane perpendicular to the axis of each roller and is located on the center line of the roller gap of the pressure roller group, thereby ensuring that the cutting plane accurately cuts into the center line area of ​​the thickness of the waste quilt core a.

[0024] A limiting block is provided between the upper and lower swing arms and is installed on the frame. When the thickness of the waste quilt core a is too large, causing the upper swing arm 81 and the lower swing arm 91 to approach each other to the limit position, they touch the limiting block 13, forcibly terminating further closure, preventing the guide post 833 from disengaging from the guide sleeve 834, the T-shaped block from coming out, or the second elastic element 835 from being compressed beyond the limit, thus ensuring the safe operation of the equipment.

[0025] The conveying mechanism, lower feeding roller, upper feeding roller, upper pressure roller, lower pressure roller, and annular cutter mechanism are arranged sequentially in the horizontal direction. The lower feeding roller and the upper feeding roller form a feeding roller group, and the upper pressure roller and the lower pressure roller form a pressure roller group. The cutting plane of the annular cutter belt is perpendicular to the axis of each roller and is located on the center line of the roller gap of the pressure roller group, so that when the waste quilt core is cut, its thickness direction is perpendicular to the roller axis, and the cutting plane cuts into the center line area of ​​the thickness of the waste quilt core.

[0026] The frame is equipped with a drive motor, and the conveying mechanism, the lower feed roller, the upper feed roller, the upper pressure roller, the lower pressure roller and the annular cutter mechanism are all driven by individual drive motors or by a linkage motor mechanism. The linkage motor mechanism is a chain drive mechanism or a belt drive mechanism; The upper feed roller and the upper pressure roller are connected by a chain for transmission, and the lower pressure roller (10) and the lower feed roller are connected by a chain for transmission. This can ensure that the linear speed of the feed roller group (upper and lower feed rollers) and the pressure roller group (upper and lower pressure rollers) is consistent, and avoid the waste quilt core a from being stretched, wrinkled or slipping during the pressing process.

[0027] The distance between the annular cutter belt and the center line of the roller gap of the pressure roller group is 5-40mm, preferably 20mm; The closest distance between the upper and lower pressure rollers is 0-20mm, preferably 5mm.

[0028] The linear velocity ratio between the pressure roller group and the feed roller group is 1-1.5, preferably 1.2.

[0029] Working principle: Refer to Figure 1-5As shown, the waste quilt core a is horizontally conveyed by the conveying mechanism 3, and the top surface of its belt is flush with the top surface of the lower feeding roller 4, so that the waste quilt core a enters the feeding area smoothly in a horizontal posture, that is, between the upper feeding roller 5 and the lower feeding roller 4. When the thickness of the waste quilt core a increases, its outer dense fiber woven fabric presses the upper feed roller 5 upward, causing the slider 62 to slide downward along the vertical groove 66, compressing the first elastic element 64; when the thickness of the waste quilt core a decreases, the rebound force of the first elastic element 64 pushes the slider 62 to slide downward along the vertical groove 66, causing the upper feed roller 5 to move downward accordingly, thus realizing flexible clamping and adaptive floating of the outer fabric of the waste quilt core a of different thicknesses; The upper feed roller 5 and lower feed roller 4 continuously feed the waste quilt core a between the upper pressure roller 7 and the lower pressure roller 10. When the waste quilt core a enters between the upper pressure roller 7 and the lower pressure roller 10, its inner fluffy fiber filling layer is compressed and deformed. Under the reaction force, the upper pressure roller 7 rotates around the fulcrum of the upper feed roller 5, causing the upper swing arm 81 to swing, compressing the upper spring telescopic assembly 83, and the guide post 833 slides upward along the guide sleeve 834. The T-shaped block compresses the second elastic element 83. 5; At the same time, the lower pressure roller 10 rotates around the fulcrum of the lower feed roller 4 under the reaction force, which drives the lower swing arm 91 to swing, causing the lower spring telescopic assembly 92 to be compressed, the guide post to slide upward along the guide sleeve, and the T-shaped block to compress the second elastic element. The two sets of telescopic assemblies respond synchronously to the change in the thickness of the waste quilt core a, driving the upper pressure roller 7 and the lower pressure roller 10 to move towards each other in the vertical direction to reduce the roller gap, or to move away from each other to expand the roller gap, thereby adjusting the roller gap between the upper pressure roller 7 and the lower pressure roller 10 in real time. Finally, the waste quilt core a is continuously fed into the cutting area of ​​the annular cutter mechanism 11 by the upper feed roller 5 and the lower feed roller 4. The annular cutter belt rotates at high speed under the drive of the driving wheel and the driven wheel, cutting into the waste quilt core a in parallel, and completing the adaptive flat cutting action.

[0030] On the other hand, the present invention can also be applied to the flat-cutting of other double-layer composite textiles such as waste mattresses and plush toys.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices recited in the apparatus claims may also be implemented by a single unit or device in software or hardware. The terms "first," "second," etc., are used to indicate names and do not indicate any particular order.

[0032] Finally, it should be noted that the above examples are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above examples and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this invention should be considered within the scope of protection of this invention.

Claims

1. An adaptive waste textile flat cutting device, comprising a frame (1), a conveying mechanism (3), a lower feeding roller (4), an upper feeding roller (5), an upper pressure roller (7), a lower pressure roller (10), an annular cutting mechanism (11), and a blade holder (12); the conveying mechanism (3) is a belt conveying mechanism, the top surface of which is flush with the top surface of the lower feeding roller (4); the annular cutting mechanism (11) is mounted on the frame (1) via the blade holder (12), and the cutting plane of its annular cutting belt is located between the upper pressure roller (7) and the lower pressure roller (10), characterized in that: The upper feed roller (5) is mounted on the frame (1) via the first up-down adjustment mechanism (6); The first up-down adjustment mechanism (6) includes a fixed straight plate (63), a slider (62), a first elastic element (64), and a positioning block (65); A fixed straight plate (63) is fixed on the frame (1) and is provided with a vertical slide groove (66). The slider (62) slides in cooperation with the vertical slide groove (66). The positioning block (65) is located above the vertical slide groove (66) and is connected to the slider (62) through the first elastic element (64). The upper feed roller (5) is supported on the slider (62) by a bearing, so that the upper feed roller (5) can float elastically in the vertical direction when the thickness of the material (waste quilt core a) changes. The upper pressure roller (7) is mounted on the first upper and lower adjustment mechanism (6) via the second upper and lower adjustment mechanism (8); The second up-down adjustment mechanism (8) includes an upper swing arm (81), a connecting swing piece (82), and an upper spring telescopic assembly (83). The upper swing arm (81) is hinged to the upper pressure roller (7) and the upper feed roller (5) at both ends respectively. The upper spring telescopic assembly (83) is hinged to the upper swing arm (81) at one end and to the connecting swing piece (82) at the other end. The connecting swing piece (82) is fixed to the fixed straight plate (63). When the upper pressure roller (7) is pressed, the upper spring telescopic assembly (83) generates compression deformation and outputs adjustable downward pressure. The lower pressure roller (10) is mounted on the frame (1) via a third up-down adjustment mechanism (9); The third up-down adjustment mechanism (9) includes a lower swing arm (91) and a lower spring telescopic assembly (92). The lower swing arm (91) is hinged to the lower pressure roller (10) and the lower feed roller (4) at both ends. The lower spring telescopic assembly (92) is hinged to the lower swing arm (91) at one end and to the frame (1) at the other end. When the lower pressure roller (10) is pressed, the lower spring telescopic assembly (92) generates compression deformation and outputs adjustable upper pressure.

2. The adaptive waste textile flat-cutting device according to claim 1, characterized in that: The upper spring telescopic assembly (83) and the lower spring telescopic assembly (92) have the same structure, both consisting of an upper hinge joint (831), a locking nut (832), a guide post (833), a guide sleeve (834), a second elastic element (835), a lower spring seat (836), and a lower hinge joint (837). The upper hinge joint (831) is fixed to the guide post (833); The bottom end of the guide sleeve (834) is an open structure, and the lower spring seat (836) is fixed to the bottom end of the guide sleeve (834); The guide post (833) penetrates into the guide sleeve (834) and is slidably connected to the guide sleeve (834). The structure of the guide post (833) located in the guide sleeve (834) is provided with a T-shaped block, which is snapped into the guide sleeve (834). The T-shaped block is connected to the lower spring seat (836) through the second elastic element (835). The lower spring seat (836) is connected to a lower hinge joint (837) at its bottom end; The guide post (833) is provided with a backstop nut (832) on the side away from the guide sleeve (834), and the backstop nut (832) is in contact with the upper hinge joint (831). The upper hinge joint (831) is hinged to the upper swing arm (81), and the lower hinge joint (837) is hinged to the connecting swing piece (82); The upper hinge joint of the lower spring telescopic assembly (92) is hinged to the lower swing arm (91), and the lower hinge joint of the lower spring telescopic assembly (92) is hinged to the frame (1).

3. The adaptive waste textile flat-cutting device according to claim 1, characterized in that: The first up-down adjustment mechanism (6) also includes a mounting bearing (61). The fixed straight plate (63) and the slider (62) are both equipped with mounting bearings (61), and the upper feed roller (5) is connected to the mounting bearing (61).

4. The adaptive waste textile flat-cutting device according to claim 1, characterized in that: The upper spring telescopic assembly (83) forms a vertically downward downward pressure F1 on the upper pressure roller (7), and the lower spring telescopic assembly (92) forms a vertically upward upward pressure F2 on the lower pressure roller (10). The overall weight G1 of the upper pressure roller (7); The gravity G2 of the lower pressure roller (10); Adjust the initial pressure of the upper spring telescopic assembly (83) and the lower spring telescopic assembly (92) relative to the upper pressure roller (7) and the lower pressure roller (10) respectively, so as to satisfy the relationship: (F1 + G1 + G2) / F2 = a; Where a is 0.8–1.

2.

5. The adaptive waste textile flat-cutting device according to claim 4, characterized in that: The optimal value for a is 1.

6. The adaptive waste textile flat-cutting device according to claim 1, characterized in that: A limiting block (13) is provided between the upper swing arm (81) and the lower swing arm (91), and the limiting block (13) is installed on the frame (1).

7. The adaptive waste textile flat-cutting device according to claim 1, characterized in that: The conveying mechanism (3), lower feeding roller (4), upper feeding roller (5), upper pressure roller (7), lower pressure roller (10) and annular cutting mechanism (11) are arranged in sequence along the horizontal direction of the frame; the lower feeding roller (4) and the upper feeding roller (5) constitute a feeding roller group, the upper pressure roller (7) and the lower pressure roller (10) constitute a pressure roller group, and the cutting plane of the annular cutting strip of the annular cutting mechanism (11) is perpendicular to the axis of each roller and located on the center line of the roller gap of the pressure roller group, so that when the waste quilt core (a) is cut, its thickness direction is perpendicular to the axis of the roller, and the cutting plane cuts into the center line area of ​​the thickness of the waste quilt core (a).

8. The adaptive waste textile flat-cutting device according to claim 7, characterized in that: The frame (1) is equipped with a drive motor (2), and the conveying mechanism (3), the lower feed roller (4), the upper feed roller (5), the upper pressure roller (7), the lower pressure roller (10) and the annular cutter mechanism (11) are all driven by individual drive motors or by a linkage motor mechanism; The linkage motor mechanism is a chain drive mechanism or a belt drive mechanism; The upper feed roller (5) and the upper pressure roller (5) are connected by a chain for transmission, and the lower pressure roller (10) and the lower feed roller (4) are connected by a chain for transmission.

9. The adaptive waste textile flat-cutting device according to claim 7, characterized in that: The distance between the annular cutter belt and the center line of the roll gap of the pressure roller assembly is 5-40mm; The closest distance between the upper pressure roller (7) and the lower pressure roller (10) is 0-20mm.

10. The adaptive waste textile flat-cutting device according to claim 7, characterized in that: The linear velocity ratio between the pressure roller group and the feed roller group is 1-1.5.

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