Width adjusting type winding mechanism for pre-oxidized fiber felt

Abstract

The width adjusting type winding mechanism of the pre-oxidized fiber felt comprises a winding seat, two power output rollers and a winding roller, the winding roller rotates along with rotation of the power output rollers so as to wind the pre-oxidized fiber felt, and particularly, the width adjusting type winding mechanism further comprises shaft end adjusting assemblies located at the two ends of the winding roller. On one hand, on the basis of limitation of the shaft end of the winding roller, winding deviation caused by axial movement of the winding roller is avoided, and meanwhile the winding requirements of felts with different widths can be met; and on the other hand, the formed limitation can also form motion guidance in the lifting process of the winding roller, so that the axis of the winding roller and the roller centers of the two power output rollers are distributed in an isosceles triangle shape, the pre-oxidized fiber felt is wound more stably, and the winding quality of the felt is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of new fiber and composite material preparation, and particularly relates to a wide-width adjustable winding mechanism for a PAN-based oxidized fiber felt. Background Art

[0002] The PAN-based oxidized fiber felt has many excellent properties, such as excellent heat insulation performance, good flame retardancy, light weight, highly porous structure, and excellent seismic resistance. For example, in the high-temperature industrial field, the PAN-based oxidized fiber felt can effectively protect the safety of equipment and personnel by virtue of its excellent heat insulation performance and flame retardancy; in automobile manufacturing, its light weight and seismic resistance contribute to reducing the vehicle weight and improving the driving stability.

[0003] At present, the production line of the PAN-based oxidized fiber felt usually consists of pretreatment equipment, feeding equipment, needle punching equipment, heat setting equipment, and trimming and winding equipment. The pretreatment equipment includes a carding machine and a cleaning machine, which are used to preliminarily process the raw materials to make them reach a state suitable for subsequent processing. The feeding equipment is responsible for evenly conveying the processed raw materials to the needle punching equipment. The needle punching equipment is the core part of the production line, including a pre-needle punching machine, a positive needle punching machine, and a reverse needle punching machine, etc., which make the fibers interweave with each other to form a felt through the needle punching action. The heat setting equipment is used to heat-treat the felt to fix its shape and size. The trimming and winding equipment cuts the felt into the required size and winds it into a roll. During the winding process, basically two oppositely rotating drive rollers are used as the power output rollers, and the winding roller formed by winding the felt is a passive roller, where the passive roller is located above the power output roller and remains tangent. Therefore, driven by the power output roller, the winding roller rotates accordingly to synchronously wind the felt (and there is no tension throughout the process, and the winding is relatively flat).

[0004] However, this winding method, although more suitable for winding the felt, has the following technical defects due to the free state of the shaft end:

[0005] 1. There is an axial restraining force formed by the contact between the power output roller and the wound felt, but it is impossible to ensure that the axial restraining force is in an equilibrium state. Therefore, it is impossible to maintain the alignment of the winding ends.

[0006] 2. Since the winding ends cannot be aligned, it will cause local pulling of the felt. Therefore, there is a high probability of local wrinkles during winding, which directly affects the winding quality and also affects the subsequent processing performances such as cutting and sewing. Summary of the Utility Model

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved wide-width adjustable winding mechanism for a PAN-based oxidized fiber felt.

[0008] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0009] A wide-width adjustable winding mechanism for a pre-oxidized fiber felt, which includes a winding base, two power output rollers located at the lower part and capable of rotating towards each other, and a winding roller tangent to the two power output rollers and wound with a pre-oxidized fiber felt. The winding roller rotates with the rotation of the power output rollers to wind the pre-oxidized fiber felt. In particular,

[0010] The wide-width adjustable winding mechanism further includes shaft-end adjustment components located at both ends of the winding roller. The shaft-end adjustment components include a frame seat fixed on the winding base, an adjustment rod extending along the length direction of the winding roller and capable of being movably adjusted and installed on the frame seat, and a limit module capable of being adjusted and installed along the up-and-down direction at the end of the adjustment rod close to the winding roller. During winding, the contact between the two limit modules and the axial end face of the winding roller forms a movement limit in the axial direction, and a movement guide for the lifting of the winding roller is also formed between the two limit modules.

[0011] Preferably, the shaft-end adjustment components at both ends are symmetrically arranged.

[0012] In some specific embodiments, the limit module is located above the tangent part of the two power output rollers.

[0013] According to a specific implementation and preferred aspect of the present utility model, the limit module is rod-shaped, and a plurality of universal balls are formed on the contact surface of the limit module. The plurality of universal balls are evenly spaced in the up-and-down direction, and as the winding roller lifts, the universal balls form a rolling guide. In short, the rolling contact formed by the adopted universal balls meets the need of non-interference between rotation and limitation, and can also play a role in movement guidance to improve the winding quality.

[0014] Preferably, at least two of the plurality of universal balls remain in rolling contact with the axial end face of the winding roller. In this way, both rotation and rising are relatively stable.

[0015] According to another specific implementation and preferred aspect of the present utility model, the frame seat includes a column and an insertion seat formed on the column. The adjustment rod is horizontally inserted through the insertion seat and is relatively locked by a locking bolt. That is, the position of the adjustment rod can be adjusted through the locking bolt to meet the required wide-width limit adjustment.

[0016] Preferably, there are at least two insertion seats, which are distributed at intervals in the up-and-down direction, and there are at least two adjustment rods, which are respectively horizontally inserted through the insertion seats and fixedly connected to the limit module. This increases rigidity, and the formed restrictions can assist in winding.

[0017] In some specific embodiments, the adjustment rod is respectively butt-jointed with a first connecting rod and a second connecting rod at the end close to and far from the winding roller, and the limit module is adjusted and installed up and down on the first connecting rod.

[0018] In addition, the cross-section of the limit module is square. The first connecting rod includes a first connecting piece connected to the end of the adjusting rod, and second and third connecting pieces vertically arranged on opposite sides of the first connecting piece. The first connecting piece, the second connecting piece, and the third connecting piece form an insertion slot with open upper and lower ends and sides, and the limit module is inserted into the insertion slot in a matching manner. In this way, the cooperation between the insertion slot and the limit module effectively limits the possibility of the limit module rotating around its own center.

[0019] Preferably, an installation slot extending vertically is provided on the first connecting piece, and the limit module is adjusted up and down along the extension direction of the installation slot by an adjusting bolt. In the up and down height adjustment, the practicability of the limit is enhanced.

[0020] Due to the implementation of the above technical solutions, the present utility model has the following advantages compared with the prior art:

[0021] For the winding of the existing pre-oxidized fiber felt, since the axial limiting force formed by the contact between the power output roller and the wound felt is not constant, it is impossible to maintain the alignment of the winding ends. At the same time, due to the misalignment of the winding ends, local pulling of the felt will occur, so the probability of local wrinkles during winding is relatively large, which directly affects the winding quality and also affects the processing performance such as later cutting and sewing. However, the present application conducts an overall design of the wide-width adjustable winding mechanism for the pre-oxidized fiber felt, skillfully solves the deficiencies and defects of the prior art. After adopting this winding mechanism, based on the position adjustment between the two limit modules at both ends, the winding of pre-oxidized fiber felts with different widths can be satisfied. At the same time, the contact between the two limit modules and the end face of the winding roller shaft forms a moving limit in the axial direction, and a movement guide for the lifting of the winding roller is also formed between the two limit modules. Therefore, compared with the prior art, on the one hand, the present utility model avoids the winding deviation caused by the axial movement of the winding roller based on the restriction at the shaft end of the winding roller, and at the same time can meet the winding requirements of felts with different widths; on the other hand, the formed restriction can also form a movement guide during the lifting process of the winding roller, making the axis of the winding roller and the roller axes of the two power output rollers distributed in an isosceles triangle, and more stably implementing the winding of the pre-oxidized fiber felt and improving the winding quality of the felt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view schematic diagram of the wide-width adjustable winding mechanism for the pre-oxidized fiber felt of this embodiment;

[0023] Figure 2 It is a front view schematic diagram of the wide-width adjustable winding mechanism for the pre-oxidized fiber felt of this embodiment;

[0024] Figure 3 It is a front view schematic diagram of the wide-width adjustable winding mechanism for the pre-oxidized fiber felt of this embodiment (when the winding thickness increases);

[0025] Figure 4 is Figure 3 a schematic enlarged view of the structure of the left shaft end adjusting assembly in

[0026] Figure 5 is Figure 4 a schematic enlarged view of the structure of the first connecting rod in

[0027] Wherein: 1. Winding base;

[0028] 2. Power output roller;

[0029] 3. Winding roller;

[0030] 4. Shaft end adjusting assembly; 40. Mounting base; 400. Column; 401. Insertion base; 402. Locking bolt 41. Adjusting rod; 42. Limiting module; g. Universal ball; 43. First connecting rod; 431. First connecting piece; a. Mounting groove; 432. Second connecting piece; 433. Third connecting piece; c. Insertion groove; 44. Second connecting rod; 45. Adjusting bolt;

[0031] M. Pre-oxidized fiber felt. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0034] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this application, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height. It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0037] As Figures 1 to 4 shown, the wide-width adjustable winding mechanism of the PANOF felt in this embodiment includes a winding base 1, two power output rollers 2 located at the lower part and capable of rotating towards each other, a winding roller 3 tangent to the two power output rollers 2 and wound with the PANOF felt M, and shaft end adjustment assemblies 4 located at both ends of the winding roller 3. Among them, the winding roller 3 rotates with the rotation of the power output rollers 2 to wind the PANOF felt M; the shaft end adjustment assemblies 4 at both ends are symmetrically arranged left and right.

[0038] In some specific embodiments, the shaft end adjustment assembly 4 includes a frame base 40 fixed on the winding base 1, an adjustment rod 41 extending along the length direction of the winding roller and capable of being movably adjusted and installed on the frame base 40, and a limit module 42 capable of being adjusted and installed along the up and down directions at the end of the adjustment rod 41 close to the winding roller 3. During winding, the space between the two limit modules 42 contacts the axial end surface of the winding roller 3 to form a movement limit in the axial direction, and a movement guide for the lifting of the winding roller 3 is also formed between the two limit modules 42.

[0039] The frame base 40 includes a column 400 and an insertion base 401 formed on the column 400. The adjustment rod 41 is horizontally inserted through the insertion base 401 and is relatively locked by a locking bolt 402. That is, the position of the adjustment rod can be adjusted through the locking bolt to meet the required width limit adjustment. There are two insertion bases 401, which are distributed at intervals up and down. There are two adjustment rods 41, which are respectively horizontally inserted through the insertion bases 401 and fixedly connected to the limit module 42. Increasing rigidity and the formed differences in limits can assist in winding.

[0040] The adjustment rod 41 is respectively butted with a first connecting rod 43 and a second connecting rod 44 at the end close to and far from the winding roller 3. The limit module 42 is adjusted and installed up and down on the first connecting rod 43. The cross-section of the limit module 42 is square. Figure 5 As shown, the first connecting rod 43 includes a first connecting piece 431 connected to the end of the adjustment rod 41, second connecting pieces 432 and third connecting pieces 433 vertically arranged on opposite sides of the first connecting piece 431. The first connecting piece 431, the second connecting pieces 432 and the third connecting pieces 433 form an insertion slot c with open upper and lower ends and sides. The limit module 42 is inserted into the insertion slot c in a matching manner. In this way, the cooperation between the insertion slot c and the limit module 42 effectively limits the possibility of the limit module 42 rotating around its own center. Further, an installation slot a extending up and down is provided on the first connecting piece 431. The limit module 42 is adjusted up and down along the extending direction of the installation slot a through an adjustment bolt 45. In the up and down height adjustment, the practicability of the limit is enhanced.

[0041] In this example, the limit module 42 is located above the tangent part of the two power output rollers 2. The limit module 42 is rod-shaped, and a plurality of universal balls g are formed on the contact surface of the limit module 42. The plurality of universal balls g are evenly spaced in the up and down direction, and as the winding roller 3 lifts, the universal balls g form a rolling guide. Briefly, the rolling contact formed by the adopted universal balls meets the need that rotation and limitation do not interfere with each other, and at the same time can also play a role in movement guiding and improve the winding quality. Two of the plurality of universal balls g remain in rolling contact with the axial end surface of the winding roller 3. In this way, both rotation and rising are relatively stable.

[0042] In summary, the implementation process of this embodiment is as follows:

[0043] Based on the position adjustment between the limiting modules 42 at both ends to meet the winding of the pre-oxidized fiber felt M with different widths. At the same time, both end faces of the winding roller 3 are in rolling contact with the universal balls g at both ends. The winding roller 3 wound with the pre-oxidized fiber felt is tangent to the two power output rollers 2. Under the power output of the two power output rollers 2, the winding roller 3 performs winding. Then, as the winding thickness increases, the winding roller 3 moves upward and is guided by the universal balls g to wind the pre-oxidized fiber felt M.

[0044] Therefore, after adopting this winding mechanism, based on the position adjustment between the limiting modules at both ends to meet the winding of the pre-oxidized fiber felt with different widths. At the same time, the contact between the two limiting modules and the end face of the winding roller shaft forms a movement limit in the axial direction, and a movement guide for the lifting of the winding roller is also formed between the two limiting modules. Therefore, compared with the prior art, on the one hand, the present invention is based on the limitation of the shaft end of the winding roller to avoid the winding deviation caused by the axial movement of the winding roller, and at the same time can meet the winding requirements of felts with different widths; on the other hand, the formed limitation can also form a movement guide during the lifting process of the winding roller, so that the axis of the winding roller and the roller centers of the two power output rollers are distributed in an isosceles triangle, more stably implementing the winding of the pre-oxidized fiber felt and improving the winding quality of the felt; on the third hand, the rolling contact formed by the universal balls used can meet the need that rotation and limitation do not interfere with each other, and at the same time can also play a role in movement guidance to improve the winding quality; on the fourth hand, the position of the adjusting rod can be adjusted through the locking bolt to meet the required width limit adjustment. At the same time, the cooperation of the insertion slot and the limiting module effectively limits the possibility of the limiting module rotating around its own center. In addition, the limiting module is adjusted up and down along the extension direction of the installation slot through the adjusting bolt, enhancing the practicability of the limit.

[0045] The above has made a detailed description of the present invention, aiming to enable those skilled in this field to understand the content of the present invention and implement it. However, it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A width-adjustable winding mechanism for preoxidized silk felt, comprising a winding seat, two power output rollers located at the bottom and capable of rotating toward each other, and a winding roller tangential to the two power output rollers and wound with the preoxidized silk felt, wherein the winding roller rotates with the rotation of the power output rollers to wind up the preoxidized silk felt, characterized in that: The width-adjustable winding mechanism also includes an axis-end adjustment assembly located at both ends of the winding roller, the axis-end adjustment assembly includes a frame fixed on the winding seat, an adjustment rod extending along the length direction of the winding roller and movably adjustable and installed on the frame, and a limit module adjustable along the up and down directions and installed on the adjustment rod near the end of the winding roller, wherein during winding, the two limit modules are in contact with the end surface of the winding roller shaft to form an axial movement limit, and a motion guide for lifting the winding roller is also formed between the two limit modules.

2. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 1 is characterized in that: The shaft end adjustment components at both ends are symmetrically arranged.

3. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 1 is characterized in that: The limiting module is located above the tangent portion of the two power output rollers.

4. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 1 or 3, characterized in that: The limiting module is rod-shaped, and a plurality of universal balls are formed on the contact surface of the limiting module, wherein the plurality of universal balls are evenly spaced in the up and down directions, and as the winding roller is lifted, the universal balls form a rolling guide.

5. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 4 is characterized in that: At least two of the plurality of universal ball bearings are kept in rolling contact with the axial end surface of the winding roller.

6. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 1 is characterized in that: The bracket comprises a column and a plug-in seat formed on the column. The adjusting rod crosses the plug-in seat and is relatively locked by a locking bolt.

7. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 6 is characterized in that: There are at least two insertion seats, which are spaced apart from each other. There are at least two adjustment rods, which respectively cross the insertion seats and are fixedly connected to the limit modules.

8. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 7 is characterized in that: The adjusting rod is connected to and away from the end of the winding roller by a first connecting rod and a second connecting rod respectively, and the limit module is installed on the first connecting rod for upward and downward adjustment.

9. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 8, characterized in that: The cross-section of the limiting module is square, and the first connecting rod includes a first connecting piece connected to the end of the adjusting rod, and a second connecting piece and a third connecting piece vertically arranged on opposite sides of the first connecting piece, wherein the first connecting piece, the second connecting piece and the third connecting piece form an insertion slot open at both ends and the sides, and the limiting module is matched and inserted into the insertion slot.

10. The width-adjustable winding mechanism of the preoxidized yarn felt according to claim 9, characterized in that: The first connecting piece is provided with a mounting groove extending up and down, and the limiting module is adjusted up and down along the extending direction of the mounting groove by adjusting bolts.

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