Pressurizing mechanism of curling roller

Abstract

The invention relates to the technical field of chemical fiber processing, and provides a crimping roller pressurizing mechanism which comprises a machine body. The pressurizing piece is arranged on the machine body in a swinging manner; the first winding roller is arranged on the machine body in a swinging manner; the second winding roller is arranged in a sliding mode relative to the pressurizing part, the sliding direction of the second winding roller is the tangential direction of swinging of the pressurizing part, a rolling space is formed between the first winding roller and the second winding roller, the rolling space is provided with a feeding port and a discharging port, and the rolling space is configured in the mode that after the pressurizing part drives the second winding roller to be close to or away from the first winding roller, the feeding port is communicated with the discharging port. And the rolling space is reduced or increased. By means of the technical scheme, the problem that in the prior art, when a winding roller conducts rolling on chemical fibers, due to the fact that the motion trail of a rolling device is different from the actually-needed trail, the product quality is not stable is solved.

Description

Technical Field

[0001] The invention relates to the technical field of chemical fiber processing, and in particular to a curling roller pressurizing mechanism. Background Art

[0002] The chemical fiber crimping machine is an important part of the chemical fiber post-processing equipment. Its main function is to crimp the chemical fiber tow to increase its fluffiness, elasticity and cohesion, thereby improving the textile performance and use performance of the chemical fiber. After pre-treatment such as stretching, the chemical fiber tow enters the crimping machine. The crimping machine is usually composed of a crimping roller, a pressurizing device, a crimping box and other parts. The crimping roller is the key component for crimping, and there are usually one or more pairs. When the chemical fiber tow passes between the crimping rollers, it is squeezed and rubbed by the crimping rollers. The crimping machines currently used in the market mainly use plunger cylinders as the main back pressure pressurization method. Although the design of the plunger cylinder is widely used in many applications, its piston rod seal is easily damaged, which is particularly obvious during operation. This damage is mainly caused by the limitations of the cylinder structure. This structure is prone to air leakage and pressure relief during use, which seriously affects the quality of the tow. In addition, the motion trajectory of the crimping roller and the back pressure is usually designed as a circular arc curve, while the piston rod of the plunger cylinder is a linear reciprocating motion. When the tow passes through the pulp block, the piston rod of the plunger cylinder reacts significantly slower, causing the upper and lower rollers to fail to effectively prevent the pulp block from passing under pressure. In this case, the tow will relax instantly, causing the drafting roller to wrap around, which will lead to the shutdown of the entire production line. Summary of the invention

[0003] The present invention proposes a winding roller pressure mechanism, which solves the problem that when the winding roller in the related art rolls chemical fibers for rolling, the moving trajectory of the rolling device differs from the actually required trajectory, thus causing unstable product quality.

[0004] The technical solution of the present invention is as follows: A curling roller pressure mechanism, comprising: Body; A pressure member, the pressure member being swingably disposed on the machine body; a first roller, the first roller being swingably disposed on the machine body; A second roller is slidably arranged relative to the pressure member, and the sliding direction of the second roller is tangential to the swinging direction of the pressure member, a rolling space is formed between the first roller and the second roller, the rolling space has a feed port and a discharge port, and the rolling space is configured so that after the pressure member drives the second roller to approach or move away from the first roller, the rolling space shrinks or expands.

[0005] As a further technical solution, it also includes: A swinging member, wherein the swinging member is swingably disposed on the machine body; A first connecting rod, one end of which is hinged to the swinging member, and the other end of which is hinged to the pressure member; A first pushing member, wherein the first pushing member is disposed on the machine body, and an output end of the first pushing member pushes the swinging member to swing.

[0006] As a further technical solution, it also includes: A second pushing member, one end of which is located on the same plane as the bottom of the body, an output end of the second pushing member pushes the swinging member to swing, and the output ends of the first pushing member and the second pushing member are respectively arranged on both sides of the swinging member to push the swinging member to swing in different directions.

[0007] As a further technical solution, both the first pushing member and the second pushing member are flexible bag members, and both the first pushing member and the second pushing member are configured to increase or decrease in volume after gas injection or gas exhaust.

[0008] As a further technical solution, it also includes: The first sliding plate is slidingly arranged on the pressure member, and the sliding direction is tangential to the swinging direction of the pressure member, and the second roller is rotatably arranged on the first sliding plate.

[0009] As a further technical solution, the pressure member has a first slide groove, the first sliding plate has a first sliding portion, the first sliding portion is slidably arranged in the first slide groove, the pressure member also has a second slide groove, the second slide groove is located on the side wall of the first slide groove, and the direction of the second slide groove is parallel to the swing axis of the pressure member, and further includes: a first sliding block, wherein the first sliding block is slidably disposed in the second sliding groove; a second connecting rod, one end of which is hinged to the first sliding block, and the other end of which is hinged to the first sliding plate, wherein the first sliding block is configured to drive the first sliding block to slide toward or away from the bottom wall of the second sliding groove after the first sliding plate rises or falls; A first elastic member, one end of which is arranged on the first sliding block, and the other end of which is arranged on the bottom wall of the second sliding groove, providing a force for the first sliding block to move away from the bottom wall of the second sliding groove.

[0010] As a further technical solution, the first slider, the first connecting rod and the second connecting rod together constitute a support assembly, and the support assembly is divided into two groups, which are symmetrically arranged in pairs on the first sliding plate parallel to the axial direction of the swing of the pressure member.

[0011] As a further technical solution, the top of the first chute is provided with a third chute arranged in the same direction as the first chute, and further comprises: a second sliding plate, the second sliding plate being slidably disposed in the third sliding groove, the first sliding plate and the second sliding plate being configured such that: after the first sliding plate rises and slides, the first sliding plate abuts against the second sliding plate, driving the second sliding plate to slide upward; A second elastic member, one end of which is arranged on the second sliding plate member, and the other end of which is arranged on the top wall of the third sliding slot, providing a force for the second sliding plate member to move away from the top wall of the third sliding slot.

[0012] As a further technical solution, it also includes: A cover shell is arranged on the pressurizing member, the cover shell has a protection cavity, and the support assembly is located in the protection cavity.

[0013] As a further technical solution, the machine body has a notch portion, and the first connecting rod passes through the notch portion.

[0014] The working principle and beneficial effects of the present invention are: The present invention is mainly composed of a machine body, a pressure member, a first roller and a second roller. The pressure member is swingably mounted on the machine body through a pivot, the first roller is also swingably mounted on the machine body through a pivot, and the second roller is slidably mounted at a position relative to the pressure member, and the sliding direction is along the tangent direction of the swing of the pressure member. When the curling and pressurizing operation is performed, the pressure member swings. When the pressure member drives the second roller to move toward the first roller, the rolling space between the two is reduced; conversely, when the pressure member drives the second roller away from the first roller, the rolling space is increased. The chemical fiber bundle enters the rolling space from the feed port and is discharged from the discharge port after the pressurized curling process. The arrangement of this scheme can accurately control the size of the rolling space by driving the sliding of the second roller by the pressure member, so as to realize the precise adjustment of the pressurization degree of the chemical fiber bundle. The flexibly adjusted rolling space helps to better adapt to chemical fiber bundles of different specifications and characteristics, thereby improving the uniformity and quality of curling. Compared with the traditional pressurization method, this structure can reduce the rigid collision and wear between components and extend the service life of the equipment. Stable and precise pressurization control reduces production interruptions and defective products caused by improper pressurization, and improves overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention.

[0017] In the figure: body 1, notch portion 101, pressure member 2, first slide groove 201, second slide groove 202, third slide groove 203, first roller 3, second roller 4, rolling space 401, feed port 402, discharge port 403, swing member 5, first connecting rod 6, first pushing member 7, second pushing member 8, first sliding plate member 9, first sliding portion 901, first sliding slider 10, second connecting rod 11, first elastic member 12, support assembly 1200, second sliding plate member 13, second elastic member 14, cover shell 15, protective cavity 1501. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] Reference Figure 1~Figure 3In an embodiment of the present invention, a winding roller pressure mechanism is proposed, including a machine body 1; a pressure member 2 is swingably arranged on the machine body 1; a first winding roller 3 is swingably arranged on the machine body 1; a second winding roller 4 is slidingly arranged relative to the pressure member 2, and the sliding direction of the second winding roller 4 is tangential to the swinging direction of the pressure member 2, and a rolling space 401 is formed between the first winding roller 3 and the second winding roller 4, and the rolling space 401 has a feed port 402 and a discharge port 403. The rolling space 401 is configured so that after the pressure member 2 drives the second winding roller 4 to approach or move away from the first winding roller 3, the rolling space 401 is reduced or increased.

[0023] In this embodiment, a curling roller pressure mechanism is mainly composed of a body 1, a pressure member 2, a first roller 3 and a second roller 4. The pressure member 2 is swingably mounted on the body 1 through a pivot, the first roller 3 is also swingably mounted on the body 1 through a pivot, and the second roller 4 is slidably mounted at a position relative to the pressure member 2, and the sliding direction is along the tangential direction of the swing of the pressure member 2. When the curling and pressurizing operation is performed, the pressure member 2 swings. When the pressure member 2 drives the second roller 4 to move toward the first roller 3, the rolling space 401 between the two is reduced; conversely, when the pressure member 2 drives the second roller 4 away from the first roller 3, the rolling space 401 is enlarged. The chemical fiber bundle enters the rolling space 401 from the feed port 402, and is output from the discharge port 403 after the pressurized curling process. The setting of this scheme can accurately control the size of the rolling space 401 by driving the sliding of the second roller 4 by the pressure member 2, so as to achieve accurate adjustment of the degree of pressurization of the chemical fiber bundle. The flexibly adjustable roller pressing space 401 helps to better adapt to chemical fiber bundles of different specifications and characteristics, thereby improving the uniformity and quality of crimping. Compared with the traditional pressurization method, this structure can reduce the rigid collision and wear between components and extend the service life of the equipment. Stable and precise pressurization control reduces production interruptions and defective products caused by improper pressurization, and improves overall production efficiency.

[0024] Furthermore, it also includes a swinging member 5 swingingly arranged on the body 1; one end of the first connecting rod 6 is hinged to the swinging member 5, and the other end is hinged to the pressure member 2; the first pushing member 7 is arranged on the body 1, and the output end of the first pushing member 7 pushes the swinging member 5 to swing.

[0025] In this embodiment, when working, the output end of the first pusher 7 moves to push the swinging member 5 to swing. The swinging of the swinging member 5 drives the pressure member 2 to swing through the first connecting rod 6. The swinging of the pressure member 2 then drives the second roller 4 to move closer to or away from the first roller 3, changing the size of the rolling space 401. The chemical fiber bundle enters from the feed port 402, completes the curling and pressurization in the adjusted rolling space 401, and is finally output from the discharge port 403. The swinging member 5 and the pressure member 2 are connected by the first connecting rod 6, so that the stable transmission of force is realized, ensuring the smooth progress of the pressurizing action. The direct push of the first pusher 7 on the swinging member 5, combined with the connecting rod transmission, can more accurately control the swing amplitude and speed of the pressure member 2, thereby realizing the precise adjustment of the size of the rolling space 401. This structure makes the response of the pressurizing action more rapid, and can be further timely, and also includes: Furthermore, it also includes a second pushing member 8, one end of which is located on the same plane as the bottom of the body 1, and the output end of the second pushing member 8 pushes the swinging member 5 to swing, and the output ends of the first pushing member 7 and the second pushing member 8 are respectively arranged on both sides of the swinging member 5, respectively pushing the swinging member 5 to swing in different directions.

[0026] In this embodiment, during operation, the output end of the first pusher 7 and the output end of the second pusher 8 apply thrusts from both sides of the swinging member 5 respectively. When the output end of the first pusher 7 pushes the swinging member 5, the swinging member 5 swings in one direction, and drives the pressure member 2 to move through the first connecting rod 6, so that the second roller 4 is close to or away from the first roller 3. When the output end of the second pusher 8 pushes the swinging member 5, the swinging member 5 swings in the opposite direction, and similarly drives the pressure member 2 to change the relative position of the second roller 4 and the first roller 3 through the connecting rod, thereby adjusting the size of the rolling space 401. The chemical fiber bundle enters from the feed port 402, completes the curling and pressurizing treatment in the rolling space 401 of corresponding size, and is output from the discharge port 403. The first pusher 7 and the second pusher 8 are set to cope with three different working conditions: 1. High pressure working condition: When the curling process that requires high pressure is performed, the first pusher 7 is activated. Its output end pushes the swinging member 5, and the swinging member 5 drives the pressure member 2 to swing through the first connecting rod 6, so that the pressure member 2 drives the second winding roller 4 to approach the first winding roller 3. At this time, the force provided by the pressure member 2 is the combined force of its own gravity and the driving force of the first pusher 7, thereby greatly increasing the curling and pressing force on the chemical fiber, ensuring that the fiber is fully curled and pressed.

[0027] 2. Opening the rolling space 401: When the rolling space 401 needs to be opened, such as for cleaning or adjustment, the second pusher 8 is actuated. Its output end pushes the swinging member 5, so that the pressure member 2 drives the second roller 4 to rise, thereby opening the rolling space 401 and facilitating related operations.

[0028] 3. Low pressure working condition: When rolling materials that require less pressure, such as tow spinning, are being processed, the first pusher 7 and the second pusher 8 are not working. At this time, the force that the pressure member 2 can provide is only its own gravity, which applies less pressure to the fiber, meeting the processing requirements of this working condition.

[0029] By switching between three working states, it can adapt to different processing requirements, including high-pressure curling, opening space operation and special processing with low pressure, which improves the versatility and applicability of the equipment. It can accurately provide the required pressure in different working states, ensuring the quality and effect of the curling process. The fast switching of working states reduces the time for adjusting the equipment and improves the overall production efficiency. Under low-pressure conditions, it only relies on the gravity of the pressure-applying part 2, saving energy consumption. The clear and definite working state switching method enables the operator to operate and control conveniently.

[0030] Furthermore, both the first pushing member 7 and the second pushing member 8 are flexible bag members, and both the first pushing member 7 and the second pushing member 8 are configured to increase or decrease in volume after gas injection or gas exhaust.

[0031] In this embodiment, when it is necessary to increase the pressure for the curling operation, gas is injected into the first pusher 7 to expand and increase its volume. The expansion of the first pusher 7 pushes the swinging member 5 to swing in one direction, and the swinging member 5 drives the pressure member 2 to move through the first connecting rod 6, so that the second winding roller 4 is close to the first winding roller 3, thereby increasing the curling pressing force on the chemical fiber bundle. When it is necessary to open the rolling space 401, gas is injected into the second pusher 8 to increase its volume. The expansion of the second pusher 8 pushes the swinging member 5 to swing in the opposite direction, driving the pressure member 2 to raise the second winding roller 4 and open the rolling space 401. When a large pressure is not required, such as a small pressure condition for the yarn bundle, the gas in the first pusher 7 and the second pusher 8 is discharged to reduce their volume. At this time, the force that the pressure member 2 can provide is mainly its own gravity, realizing a small pressure effect. This solution can accurately adjust the volume of the flexible bag by injecting or exhausting gas, thereby realizing fine control of pressure and meeting different processing requirements. The action of the flexible bag is relatively smooth, which reduces the impact and vibration during the operation of the mechanism and improves the stability and reliability of the equipment. Injection or exhaust is only performed when the pressure state needs to be changed, avoiding continuous energy consumption and having a good energy-saving effect. In addition, the structure of the flexible bag is relatively simple and not prone to complex mechanical failures, which reduces maintenance costs and difficulties. The process of injection and exhaust can be achieved quickly, allowing the mechanism to quickly respond to the need for pressure adjustment and improve production efficiency.

[0032] Furthermore, it also includes a first sliding plate 9 that is slidably arranged on the pressure member 2, and the sliding direction is tangential to the swinging direction of the pressure member 2, and the second roller 4 is rotatably arranged on the first sliding plate 9.

[0033] In this embodiment, the second roller 4 is arranged on the first sliding plate 9. Under normal working conditions, the first sliding plate 9 will not slide on the pressure member 2. However, when the pressure between the first roller 3 and the second roller 4 is too large, the first sliding plate 9 will drive the second roller 4 to slide on the pressure member 2, providing a certain space for sliding unloading.

[0034] Furthermore, the pressure member 2 has a first slide groove 201, the first sliding plate 9 has a first sliding portion 901, the first sliding portion 901 is slidably arranged in the first slide groove 201, the pressure member 2 also has a second slide groove 202, the second slide groove 202 is located on the side wall of the first slide groove 201, and the direction of the second slide groove 202 is parallel to the swing axis of the pressure member 2, and also includes a first slider 10 slidably arranged in the second slide groove 202; one end of the second connecting rod 11 is hinged to the first slider 10, and the other end is hinged to the first sliding plate 9, the first slider 10 is configured to drive the first slider 10 to slide towards or away from the bottom wall of the second slide groove 202 after the first sliding plate 9 rises or falls; one end of the first elastic member 12 is arranged on the first slider 10, and the other end is arranged on the bottom wall of the second slide groove 202, providing a force for the first slider 10 to move away from the bottom wall of the second slide groove 202.

[0035] In this embodiment, under normal working conditions, when the first sliding plate 9 rises or falls, the first slider 10 is driven to slide in the second slide groove 202 by the second connecting rod 11. When the pressure does not exceed the threshold, the first elastic member 12 is in a compressed state, providing the first slider 10 with a force away from the bottom wall of the second slide groove 202, so that the first slider 10 is kept in a certain position, thereby limiting the sliding of the first sliding plate 9 and maintaining the relative stability of the pressure. When the pressure exceeds the threshold, the displacement of the first sliding plate 9 increases, overcoming the elastic force of the first elastic member 12, so that the first slider 10 slides toward the bottom wall of the second slide groove 202, providing the first sliding plate 9 with a space for unloading the force. Through the cooperation of the elastic member and the slider connecting rod, the pressure change is kept stable within the normal pressure range, and the consistency of product quality is improved. At the same time, when the pressure threshold is exceeded, the pressure can be released in time to protect the equipment and materials from damage caused by excessive pressure. Furthermore, the first slider 10 , the second connecting rod 11 and the first elastic member 12 together constitute a support assembly 1200 . The support assembly 1200 is divided into two groups and are symmetrically arranged in pairs on the first sliding plate 9 parallel to the axial direction of the swing of the pressure member 2 .

[0036] In this embodiment, within the normal pressure range, the two groups of first elastic members 12 are in a compressed state, jointly providing a stable support force for the first sliding plate 9, limiting its sliding and maintaining the stability of the pressure. When the pressure exceeds the threshold, the displacement of the first sliding plate 9 increases, and the two groups of first sliders 10 overcome the elastic force of the first elastic members 12 corresponding to each other and slide toward the bottom wall of the second slide groove 202, thereby providing a more balanced unloading space for the first sliding plate 9. The two groups of support assemblies 1200 are symmetrically arranged, so that the first sliding plate 9 is subjected to a more balanced force during operation, thereby improving the stability and accuracy of the pressure regulation. The paired support assemblies 1200 can provide a larger unloading range and a faster response, effectively preventing damage caused by excessive pressure. The double support ensures the reliability of the mechanism during long-term operation and reduces the risk of pressure loss due to failure of a single component.

[0037] Furthermore, the top of the first slide groove 201 has a third slide groove 203 which is arranged in the same direction as the first slide groove 201, and also includes a second sliding plate 13 which is slidably arranged in the third slide groove 203. The first sliding plate 9 and the second sliding plate 13 are configured as follows: after the first sliding plate 9 rises and slides, the first sliding plate 9 abuts against the second sliding plate 13, driving the second sliding plate 13 to slide up; one end of the second elastic member 14 is arranged on the second sliding plate 13, and the other end is arranged on the top wall of the third slide groove 203, providing a force for the second sliding plate 13 to move away from the top wall of the third slide groove 203.

[0038] In this embodiment, during normal operation, when the pressure does not exceed the threshold, the first sliding plate 9 slides slightly in the first slide groove 201, and the second sliding plate 13 remains in the initial position under the action of the second elastic member 14, and does not contact the first sliding plate 9. When the pressure exceeds the threshold, the first sliding plate 9 rises and slides to abut against the second sliding plate 13, and the second elastic member 14 begins to be compressed. As the pressure continues to increase, the first sliding plate 9 drives the second sliding plate 13 to slide up together, and the second elastic member 14 continues to compress, providing a buffer and unloading space for the pressure. Through the compression of the second elastic member 14, precise unloading control of the pressure is achieved to ensure that the pressure does not exceed the safety range. The cooperation of the first sliding plate 9 and the second sliding plate 13 and the compression of the second elastic member 14 form a double protection, which effectively prevents damage to equipment and materials. It can better adapt to the sudden increase in pressure and avoid production failures caused by a sudden increase in pressure.

[0039] Furthermore, the cover shell 15 is disposed on the pressurizing member 2 , the cover shell 15 has a protective cavity 1501 , and the supporting assembly 1200 is located in the protective cavity 1501 .

[0040] Furthermore, the machine body 1 has a notch portion 101 , and the first connecting rod 6 passes through the notch portion 101 .

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A curling roller pressure mechanism, It is characterized in that include: Body (1); A pressure member (2), the pressure member (2) being swingably disposed on the machine body (1); a first winding roller (3), the first winding roller (3) being swingably arranged on the machine body (1); A second roller (4), the second roller (4) being slidably arranged relative to the pressure member (2), and the sliding direction of the second roller (4) being tangential to the swinging direction of the pressure member (2), a rolling space (401) being formed between the first roller (3) and the second roller (4), the rolling space (401) having a feed inlet (402) and a discharge outlet (403), the rolling space (401) being configured such that after the pressure member (2) drives the second roller (4) to approach or move away from the first roller (3), the rolling space (401) shrinks or expands.

2. A curling roller pressure mechanism according to claim 1, It is characterized in that Also includes: A swinging member (5), the swinging member (5) being swingably disposed on the machine body (1); A first connecting rod (6), one end of the first connecting rod (6) being hinged to the swinging member (5) and the other end of the first connecting rod (6) being hinged to the pressure member (2); A first pushing member (7), wherein the first pushing member (7) is arranged on the machine body (1), and an output end of the first pushing member (7) pushes the swinging member (5) to swing.

3. A curling roller pressure mechanism according to claim 2, It is characterized in that Also includes: A second pushing member (8), one end of which is located on the same plane as the bottom of the machine body (1), the output end of the second pushing member (8) pushing the swinging member (5) to swing, and the output ends of the first pushing member (7) and the second pushing member (8) are respectively arranged on both sides of the swinging member (5) to push the swinging member (5) to swing in different directions.

4. A curling roller pressure mechanism according to claim 3, It is characterized in that The first pushing member (7) and the second pushing member (8) are both flexible bag members, and the first pushing member (7) and the second pushing member (8) are both configured to increase or decrease in volume after gas injection or gas exhaust.

5. A curling roller pressure mechanism according to claim 2, It is characterized in that Also includes: A first sliding plate (9), wherein the first sliding plate (9) is slidably arranged on the pressure member (2), and the sliding direction is tangential to the swinging direction of the pressure member (2), and the second roller (4) is rotatably arranged on the first sliding plate (9).

6. A curling roller pressure mechanism according to claim 5, It is characterized in that The pressure member (2) has a first slide groove (201), the first sliding plate (9) has a first sliding portion (901), the first sliding portion (901) is slidably arranged in the first slide groove (201), the pressure member (2) further has a second slide groove (202), the second slide groove (202) is located on the side wall of the first slide groove (201), and the direction of the second slide groove (202) is parallel to the swing axis of the pressure member (2), and further includes: A first sliding block (10), the first sliding block (10) being slidably disposed in the second sliding groove (202); a second connecting rod (11), one end of the second connecting rod (11) being hinged to the first sliding block (10), and the other end of the second connecting rod (11) being hinged to the first sliding plate (9), the first sliding block (10) being configured to drive the first sliding block (10) to slide towards or away from the bottom wall of the second sliding groove (202) when the first sliding plate (9) rises or falls; A first elastic member (12), one end of the first elastic member (12) being arranged on the first sliding block (10) and the other end being arranged on the bottom wall of the second sliding groove (202), providing a force for moving the first sliding block (10) away from the bottom wall of the second sliding groove (202).

7. A curling roller pressure mechanism according to claim 6, It is characterized in that The first sliding block (10), the second connecting rod (11) and the first elastic member (12) together form a support assembly (1200), and the support assembly (1200) is composed of two groups, which are symmetrically arranged in pairs on the first sliding plate member (9) parallel to the axial direction of the swing of the pressure member (2).

8. A curling roller pressure mechanism according to claim 6, It is characterized in that The top of the first slide groove (201) is provided with a third slide groove (203) arranged in the same direction as the first slide groove (201), and further comprises: a second sliding plate (13), the second sliding plate (13) being slidably disposed in the third sliding groove (203), the first sliding plate (9) and the second sliding plate (13) being configured such that: after the first sliding plate (9) slides upward, the first sliding plate (9) abuts against the second sliding plate (13), thereby driving the second sliding plate (13) to slide upward; A second elastic member (14), one end of the second elastic member (14) being arranged on the second sliding plate member (13), and the other end being arranged on the top wall of the third sliding groove (203), providing a force for the second sliding plate member (13) to move away from the top wall of the third sliding groove (203).

9. A curling roller pressurizing mechanism according to claim 7, It is characterized in that Also includes: A cover shell (15), the cover shell (15) being arranged on the pressurizing member (2), the cover shell (15) having a protective cavity (1501), and the supporting assembly (1200) being located in the protective cavity (1501).

10. A curling roller pressurizing mechanism according to claim 2, It is characterized in that The machine body (1) has a notch portion (101), and the first connecting rod (6) passes through the notch portion (101).

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