Guide device for nonwoven fabric manufacturing equipment and nonwoven fabric manufacturing equipment

Abstract

The present invention proposes a guiding device for non-woven fabric manufacturing equipment and non-woven fabric manufacturing equipment, comprising a base, a needle array unit and a guide assembly; the base is arranged on one side surface of the non-woven fabric and moves toward or away from the non-woven fabric surface; a plurality of needle array units are arranged on the end surface of the base facing the non-woven fabric along the extension direction of the non-woven fabric, and each needle array unit moves synchronously relative to the base toward or away from the non-woven fabric surface, so that the sharp ends of the plurality of needle array units are at the same distance from the non-woven fabric surface; the guide assembly drives the plurality of needle array units to move synchronously and locks the position of the needle array units; each needle array unit is set to be independent of each other and move synchronously relative to the non-woven fabric surface, and the connection line of the sharp ends of the needle array units is adjusted to be parallel to the non-woven fabric surface according to the inclination angle of the non-woven fabric, and the distance between the sharp ends of the needle array units and the non-woven fabric surface is the same so that they can penetrate into the fiber web at the same time, adapting to the change in the inclination angle of the non-woven fabric and the horizontal plane.

Description

Technical Field

[0001] The present invention relates to the technical field of non-woven fabrics, in particular to a guide device for non-woven fabric manufacturing equipment and the non-woven fabric manufacturing equipment. Background Art

[0002] The demand for medical masks has been increasing, and global demand remains high, with a severe supply shortage. Disposable masks are made from several materials: non-woven, paper, and activated carbon, with non-woven being the most in-demand type.

[0003] Needle-punched nonwoven fabric is an option for making nonwoven masks. Chinese patent CN112056652A discloses a multifunctional protective mask made from needle-punched nonwoven fabric. The principle of needle-punched nonwoven fabric production is to repeatedly puncture a web using a barbed needle with a triangular or other sharp cross-section. As the barbs penetrate the web, they force the surface fibers and some of the inner fibers into the web. Due to friction between the fibers, the previously fluffy web is compressed. When the needle exits the web, the pierced fiber bundles break free from the barbs and remain in the web. This causes many fiber bundles to entangle the web, preventing it from regaining its original fluffy state. After repeated needling, a considerable number of fiber bundles are embedded in the web, causing the fibers within the web to entangle with each other, thus forming a needle-punched nonwoven material with a certain strength and thickness.

[0004] The needle-punched non-woven fabric process includes vertical needling and oblique needling. The vertical needling method refers to the needle piercing into the fiber web in the vertical direction along the surface of the non-woven fabric; while the oblique needling method refers to the needle piercing into the fiber web in the direction inclined to the surface of the non-woven fabric. Depending on the thickness and quality requirements of the final product, the inclination angle of the needle penetration direction relative to the non-woven fabric surface in the oblique needling method is also different.

[0005] Chinese patent CN114703606B discloses a needling device for non-woven fabric production. It can be found that the needling mechanism of the current needling machine has a fixed needle punching angle. If an oblique needling method is required, the needling machine needs to be customized according to the product. The reason is that when the current needling machine uses an oblique needling method, the surface of the non-woven fabric will be tilted relative to the horizontal plane along its extension direction, while the needles will still penetrate the fiber web along the plumb line direction. When the thickness and quality requirements of the product change, the inclination angle of the non-woven fabric relative to the horizontal plane needs to be adjusted so that the inclination angle of the needles penetrating the fiber web also needs to change accordingly. However, this will cause the distance between the sharp tips of the needles in different rows and the fiber web to be different, making it impossible to penetrate the fiber web at the same time. The needling machine needs to be customized to redirect the inclination angle of the needles penetrating the fiber web. Summary of the Invention

[0006] In view of this, the present invention proposes a guiding device for non-woven fabric manufacturing equipment and non-woven fabric manufacturing equipment. At present, the needle punching mechanism of the needle loom is fixed, and the inclination angle of the needle punching into the fiber web cannot be redirected according to the inclination angle of the non-woven fabric relative to the horizontal plane.

[0007] The technical solution of the present invention is implemented as follows: the present invention provides a guiding device for non-woven fabric manufacturing equipment, comprising a base, a needle array unit and a guide assembly; the base is arranged on one side surface of the non-woven fabric and moves toward or away from the surface of the non-woven fabric; a plurality of needle array units are arranged on the end surface of the base facing the non-woven fabric along the extension direction of the non-woven fabric, and each needle array unit moves synchronously toward or away from the surface of the non-woven fabric relative to the base, so that the sharp ends of the plurality of needle array units are at the same distance from the surface of the non-woven fabric; the guide assembly drives the plurality of needle array units to move synchronously and locks the position of the needle array units.

[0008] On the basis of the above technical scheme, preferably, the guide assembly includes a fixed part, a movable part, a limit rod and a sliding pin; a plurality of slots are provided on the end surface of the base facing the non-woven fabric along the extension direction of the non-woven fabric, and both ends of the slots extend along the moving direction of the needle array unit, and the end of each needle array unit away from the non-woven fabric is inserted into each slot one by one and moves along the slot; the fixed part and the movable part are both provided on the base and are located at both ends of the arrangement direction of the plurality of needle array units; the movable part moves relative to the base along the moving direction of the needle array unit; at least one limit rod is provided on the side of the arrangement direction of the plurality of needle array units, one end of the limit rod is hinged to the fixed part and the other end can rotate around the hinge connection part, and a slide groove is provided on the limit rod along the extension direction of the limit rod; a plurality of sliding pins are provided one by one on the side of each needle array unit and the side of the movable part, and each sliding pin is inserted into the slide groove and moves along the slide groove.

[0009] Further preferably, the guide assembly also includes a rotary drive mechanism and a screw; the rotary drive mechanism is arranged on the base and has a drive part; one end of the screw is connected to the drive part and the other end extends along the moving direction of the acupuncture row unit; the movable part is sleeved on the screw and threadedly connected to the screw.

[0010] On the other hand, the present invention also provides a non-woven fabric manufacturing equipment, including the guiding device of the above-mentioned non-woven fabric manufacturing equipment, and also including a feed end, a discharge end, a needling mechanism main body and a roller; the positions of the feed end and the discharge end are fixed, and the non-woven fabric is tightened in the part between the feed end and the discharge end; a base is set on the needling mechanism main body and the base is driven to move along the plumb line direction, and the sharp end of the needling column unit is directed toward the non-woven fabric along the plumb line direction, and the needling column unit moves synchronously with the base and penetrates or detaches from the non-woven fabric; the roller is set between the feed end and the discharge end and is tightly attached to the surface of the non-woven fabric, and the roller surface of the roller is tightly attached to the surface of the non-woven fabric, and the roller moves along the plumb line to tilt the surface of the non-woven fabric relative to the horizontal plane and change the inclination angle.

[0011] On the basis of the above technical solution, preferably, the feed end and the discharge end are arranged at the same end of the arrangement direction of the needle array units, and the discharge end is arranged directly above the feed end along the plumb line direction; the two rollers are arranged at the other end of the arrangement direction of the needle array units and away from the feed end or the discharge end, and the two rollers are simultaneously arranged on the side surface of the non-woven fabric facing the feed end or the discharge end and tighten the non-woven fabric, the two rollers are arranged at intervals along the plumb line direction, and each roller moves along the plumb line direction and adjusts the inclination angle of the non-woven fabric part between the roller and the feed end or the non-woven fabric part between the roller and the discharge end and the horizontal plane; two bases are arranged on the main body of the needling mechanism along the plumb line direction, the two bases move synchronously, and the needling array units on the two bases respectively needle the same surface or two surfaces of the non-woven fabric.

[0012] More preferably, the non-woven fabric portion between the roller and the feed end and the non-woven fabric portion between the roller and the discharge end are two working sections respectively, and the inclination directions of the two working sections to the horizontal plane are opposite.

[0013] More preferably, when the two bases are located at the end faces of the two working sections facing the same direction, the two bases move synchronously and the needle punching row units on the two bases simultaneously needle punch the two surfaces of the non-woven fabric; when the two bases are located at the end faces of the two working sections facing opposite directions, the two bases move synchronously and the needle punching row units on the two bases respectively needle punch the same surface of the non-woven fabric.

[0014] More preferably, the two rollers move simultaneously in opposite directions along the vertical line so that the two working sections have the same inclination angle with the horizontal plane.

[0015] More preferably, after the roller in the working section moves in the direction of the plumb line, the inclination angle between the working section and the horizontal plane changes accordingly, and the inclination angle between the working section and the horizontal plane is,

[0016] a= tan -1 ((BA) / 2L) (1),

[0017] Among them, a represents the inclination angle of the working section and the horizontal plane, A represents the distance between the two rollers along the plumb line direction, B represents the distance between the feed end and the discharge end along the plumb line direction, and L represents the distance between the roller and the feed end or the discharge end along the horizontal direction.

[0018] More preferably, when the inclination angle between the working section and the horizontal plane changes, the moving distance of the movable part along the vertical line is,

[0019] d=|h 1 -h 2 |= S×|tan(a 1 )- tan(a 2) | (2),

[0020] h=S×tan(a) (3),

[0021] Among them, d represents the moving distance of the movable part along the plumb line direction, h represents the height difference along the plumb line direction at both ends of the arrangement direction of the needle array units, and S represents the horizontal distance between the sharp ends of the two needle array units at both ends of the arrangement direction of the needle array units.

[0022] The guide device of the nonwoven fabric manufacturing equipment and the nonwoven fabric manufacturing equipment of the present invention have the following beneficial effects compared with the prior art:

[0023] (1) The present invention sets each needle array unit to be independent of each other and to move synchronously relative to the non-woven fabric surface. Not only does it adjust the line connecting the sharp ends of the needle array units to be parallel to the non-woven fabric surface according to the inclination angle of the non-woven fabric, but it also makes the distance between the sharp ends of each needle array unit and the non-woven fabric surface the same so that they can penetrate into the fiber web at the same time, thereby realizing the redirection of each needle array unit and being able to adapt to the change of the inclination angle of the non-woven fabric and the horizontal plane. By arranging a sliding pin on the side of each needle array unit and the movable part, and the sliding pin slidingly arranged in the slide groove of the limiting rod, when the free end of the limiting rod rotates, it will drive each sliding pin to move in the slide groove. Since each needle array unit and the movable part can only move along the slot, the rotation of the limiting rod will drive each needle array unit and the movable part to move, and the moving distance of each needle array unit will increase proportionally, thereby realizing the adjustment of the inclination angle between the line connecting the sharp ends of the needle array units and the horizontal plane, and realizing the purpose that the sharp ends of the needle array units are always on the same straight line, so that the line connecting the sharp ends of the needle array units is parallel to the non-woven fabric surface and the distance between them is consistent with the non-woven fabric surface.

[0024] (2) The present invention drives the movable part to move by rotating the screw, and accurately controls the moving distance of the movable part by the number of rotations of the screw, thereby accurately regulating the lifting height of each acupuncture column unit and realizing accurate control of the inclination angle of the connecting line of the sharp end of each acupuncture column unit relative to the horizontal plane.

[0025] (3) The present invention tightens the non-woven fabric by means of fixed feed and discharge ends, and adjusts the inclination angle of the working section relative to the horizontal plane by means of the up and down movement of the roller. Moreover, when the non-woven fabric continuously advances, no matter how the inclination angle of the non-woven fabric changes, the needle punching array units penetrate into the fiber web along the plumb line direction and meet the penetration angle requirements of the oblique needling process.

[0026] (4) The present invention guides the extension direction of the non-woven fabric by two rollers, so that the non-woven fabric bends back, and sets two guide devices up and down in the needling mechanism. The two guide devices can simultaneously needle different surfaces of the non-woven fabric by the synchronous movement of the needling mechanism, or the two guide devices can needle the same surface of the non-woven fabric twice by moving up and down, thereby greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A side view of the guide device of the present invention;

[0029] Figure 2 A side view of a nonwoven fabric manufacturing apparatus according to the present invention;

[0030] Figure 3 A side view of another embodiment of the nonwoven fabric manufacturing apparatus of the present invention;

[0031] Figure 4 This is a side view of another embodiment of the nonwoven fabric manufacturing equipment of the present invention.

[0032] In the figure: 1. Base; 101. Slot; 2. Needling array unit; 3. Guide assembly; 31. Fixed part; 32. Movable part; 33. Limit rod; 34. Slide pin; 35. Rotary drive mechanism; 36. Screw; 301. Slide groove; 4. Non-woven fabric; 41. Working section; 5. Feed end; 6. Discharge end; 7. Needling mechanism body; 8. Roller. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figure 1 As shown, a guide device of a non-woven fabric manufacturing device of the present invention includes a base 1, a needle array unit 2 and a guide component 3.

[0035] The base 1 is mounted on one side of the nonwoven fabric 4 and moves toward or away from the surface of the nonwoven fabric 4. The base 1 is the main body for mounting the needle array units 2. In the prior art, the needle array units 2 are fixedly mounted on the base 1. However, in this case, because the inclination angle of the needled surface formed by the needle array units 2 with respect to the horizontal plane needs to be adjusted, the needle array units 2 are movably mounted on the base 1.

[0036] The non-woven fabric 4 in this case refers to the raw material web from which the non-woven fabric 4 is made.

[0037] The needle punching row unit 2 is a long row structure. Each row of needle punching forms a row unit. The row extension direction of the needle punching row unit 2 is usually perpendicular to the extension direction of the non-woven fabric 4. A plurality of needle array units 2 are arranged on the end surface of the base 1 facing the non-woven fabric 4 along the extension direction of the non-woven fabric 4. The sharp ends of the plurality of needle array units 2 form a needle punching surface. When the plurality of needle array units 2 move downward synchronously, the entire needle punching surface will simultaneously penetrate into the fiber web of the non-woven fabric 4. Therefore, the needle punching surface should be parallel to the surface of the non-woven fabric 4. However, when the inclination angle of the surface of the non-woven fabric 4 to the horizontal plane changes, the installation position of the needle in the traditional needling machine is fixed and cannot move up and down. Therefore, the position of the needle punching surface in the traditional needling machine also remains fixed. In this embodiment, the needle array units 2 always move synchronously toward or away from the surface of the non-woven fabric 4 relative to the base 1, and the moving distance of each needle array unit 2 increases or decreases proportionally, so that the distance between the sharp ends of the plurality of needle array units 2 and the surface of the non-woven fabric 4 is the same, so that the formed needle punching surface can also change its inclination angle with the horizontal plane accordingly, thereby realizing the redirection of each needle array unit 2 to adapt to the inclination angle of the non-woven fabric 4.

[0038] The guide assembly 3 drives the plurality of needling row units 2 to move synchronously and locks the positions of the needling row units 2 .

[0039] exist Figure 1 In a preferred embodiment shown, in order to realize the function of the guide assembly 3 , specifically, the guide assembly 3 includes a fixed portion 31 , a movable portion 32 , a limiting rod 33 and a sliding pin 34 .

[0040] Among them, a number of slots 101 are provided on the end surface of the base 1 facing the non-woven fabric 4 along the extension direction of the non-woven fabric 4. The two ends of the slots 101 extend along the moving direction of the needle array unit 2. The ends of each needle array unit 2 away from the non-woven fabric 4 are inserted into each slot 101 one by one and move along the slot 101. The slots 101 limit the needle array unit 2 to move only up and down but not left and right, thereby ensuring that the spacing between adjacent needle array units 2 remains unchanged.

[0041] The fixed portion 31 and the movable portion 32 are both arranged on the base 1 and located at both ends of the arrangement direction of the plurality of acupuncture array units 2; the movable portion 32 moves relative to the base 1 along the movement direction of the acupuncture array units 2, and a guide rail can be provided on the side of the base 1 to limit the movement path of the movable portion 32.

[0042] At least one limiting rod 33 is positioned on the side of the arrangement direction of the plurality of needling array units 2. The side of the arrangement direction of the plurality of needling array units 2 is actually the end of a single row of needling array units 2. Typically, limiting rods 33 are positioned on both sides of the arrangement direction of the plurality of needling array units 2 to achieve accurate control. One end of the limiting rod 33 is hinged to the fixed portion 31, and the other end is rotatable about the hinged portion. A sliding groove 301 is defined on the limiting rod 33 along the extension direction of the limiting rod 33.

[0043] A plurality of sliding pins 34 are disposed on the side surfaces of each acupuncture array unit 2 and the side surfaces of the movable portion 32 in a one-to-one correspondence. Each sliding pin 34 is inserted into the sliding groove 301 and moves along the sliding groove 301 .

[0044] Through the above technical solution, when the free end of the limit rod 33 rotates, since the sliding pin 34 is stuck in the slide groove 301, the sliding pin 34 will be subjected to the pushing force generated by the inner wall of the slide groove 301 caused by the rotation of the limit rod 33. At the same time, since the sliding pin 34 is fixed on each acupuncture array unit 2 or the movable part 32, and each acupuncture array unit 2 or the movable part 32 can only move along the slot 101, the rotation of the limit rod 33 will drive each acupuncture array unit 2 or the movable part 32 to move along the slot 101; and the limit rod 33 also limits the moving height of each acupuncture array unit 2. The closer the acupuncture array unit 2 is to the free end of the limit rod 33, the greater the distance the acupuncture array unit 2 moves up and down, and the farther the acupuncture array unit 2 is from the free end of the limit rod 33, the smaller the distance the acupuncture array unit 2 moves up and down, and the moving distance of each acupuncture array unit 2 is proportionally increased or decreased under the restriction of the limit rod 33. At the same time, although the horizontal spacing between the needle array units 2 is limited by the slide groove 301 and does not change, the height of the sliding pins 34 on each needle array unit 2 will increase or decrease. Therefore, the sliding pins 34 will move along the slide groove 301 during this process without hindering the needle array units 2 from moving only up and down.

[0045] It should also be noted that the principle of the present acupuncture device is to process the surface of the non-woven fabric 4 by driving the needle surfaces formed by each needle array unit 2. Therefore, only the sharp end of the needle needs to be inserted into the non-woven fabric 4, and there is no need to squeeze the surface of the non-woven fabric 4. In addition, the non-woven fabric 4 is soft in texture, so the reaction force to the acupuncture can be almost regarded as non-existent. Therefore, even if the present embodiment uses the limiting rod 33 to support the sliding pin 34 to squeeze each needle array unit 2 into the non-woven fabric 4, the limiting rod 33 will generally not be damaged by a strong reaction force.

[0046] exist Figure 1In a preferred embodiment shown, in order to accurately control the movement distance of the needling array unit 2 and thus precisely control the inclination angle of the needling surface formed by the sharp end of each needling array unit 2, the guide assembly 3 further includes a rotary drive mechanism 35 and a screw 36.

[0047] The rotation driving mechanism 35 is provided on the base 1 and has a driving portion; the rotation driving mechanism 35 may be a rotary motor.

[0048] One end of the screw 36 is connected to the driving part and the other end extends along the moving direction of the acupuncture row unit 2; the movable part 32 is sleeved on the screw 36 and threadedly connected to the screw 36. By converting the number of rotations of the screw 36 into the moving distance of the movable part 32, the moving distance of the movable part 32 can be accurately controlled.

[0049] like Figure 2 As shown, a non-woven fabric manufacturing device of the present invention includes the guide device of the non-woven fabric manufacturing device of any one of the above embodiments, and also includes a feed end 5, a discharge end 6, a needling mechanism body 7 and a roller 8.

[0050] The feed end 5 and the discharge end 6 respectively represent the two processes before and after the needling process. The feed end 5 feeds the fiber web serving as the raw material of the nonwoven fabric 4 into the needling process and passes through the needling array unit 2 for needle punching, while the discharge end 6 receives the needle-punched fiber web for subsequent processes to obtain the final product. Since the feed end 5 and the discharge end 6 include a large amount of conventional standard equipment in the field, and this case does not involve improvements to the feed end 5 and the discharge end 6 process, the specific structure of the feed end 5 and the discharge end 6 is not described in detail. In this embodiment, the positions of the feed end 5 and the discharge end 6 remain fixed, and the nonwoven fabric 4 is stretched taut between the feed end 5 and the discharge end 6.

[0051] The main body of the needling mechanism 7 is actually the main body of the entire needling machine. In this embodiment, it mainly includes a supporting mechanism for installing the base 1, and a driving device for driving the supporting mechanism and the base 1 to move. Since this case does not involve improvements to the main operating principle and mechanical structure of the needling machine, but only involves improvements to the insertion angle guiding principle and structure of each needling column unit 2, the specific structure of the main body of the needling mechanism 7 is not described in detail. Instead, it is simply described as a base 1 being set on the main body of the needling mechanism 7 and driving the base 1 to move along the plumb line direction, the sharp end of the needling column unit 2 is directed toward the non-woven fabric 4 along the plumb line direction, and the needling column unit 2 moves synchronously with the base 1 and penetrates or detaches from the non-woven fabric 4.

[0052] The roller 8 is arranged between the feed end 5 and the discharge end 6 and is close to the surface of the non-woven fabric 4. The roller 8 can tighten the non-woven fabric 4 to keep the surface of the non-woven fabric 4 flat and facilitate acupuncture treatment. Therefore, the roller surface of the roller 8 is close to the surface of the non-woven fabric 4; but in this embodiment, the roller 8 also has a function of adjusting the inclination angle of the surface of the non-woven fabric 4 and the horizontal plane. The roller 8 moves along the plumb line to make the surface of the non-woven fabric 4 inclined relative to the horizontal plane and change the inclination angle. The principle is that the positions of the feed end 5 and the discharge end 6 are fixed, which is equivalent to the height of one end of the non-woven fabric 4 remaining unchanged, and the roller 8 moves up and down to make the height of the other end of the non-woven fabric 4 change relatively, thereby making the non-woven fabric 4 have an inclination angle.

[0053] This embodiment adopts the above-mentioned technical solution to redesign the process of oblique needling. The difference between this embodiment and the prior art is that in the prior art, the non-woven fabric 4 is usually transported in a horizontal direction, and then each needle is set to be inclined toward the non-woven fabric 4, and the needle is inserted into the fiber web of the non-woven fabric 4 along an oblique angle by moving the needling mechanism obliquely. However, the difficulty of the prior art is that the non-woven fabric 4 is constantly moving in sections, and each section of the non-woven fabric 4 is needled each time it moves. In the prior oblique needling process, when the needling mechanism moves obliquely to insert the needle into the non-woven fabric 4 along an oblique angle, the movement path of the needling mechanism is an oblique line, which requires a long movement time, and the length of the portion where the needle is inserted into the non-woven fabric 4 is also long. If the needling mechanism has not yet driven the needle out of the non-woven fabric 4 and the non-woven fabric 4 starts to move again, the needle will scratch the surface of the non-woven fabric 4. Therefore, each time a needling is performed, a long pause is required to ensure that the needle is completely out of the non-woven fabric 4. However, in this embodiment, since the non-woven fabric 4 is arranged at an angle, and each needle array unit 2 always moves along the plumb line and penetrates into the non-woven fabric 4, the moving path of each needle array unit 2 is a vertical straight line. Therefore, the moving time is shorter than the oblique path of the existing equipment. Moreover, since the non-woven fabric 4 is arranged at an angle, each needle array unit 2 can still perform oblique needling treatment on the non-woven fabric 4 when it moves vertically and is inserted, thereby greatly shortening the time required for a single needling treatment of the needling mechanism.

[0054] exist Figure 3 In a preferred embodiment shown, in order to further improve the efficiency of acupuncture treatment, this embodiment adopts the following means.

[0055] The feed end 5 and the discharge end 6 are located at the same end in the direction in which the needle array units 2 are arranged, with the discharge end 6 positioned vertically directly above the feed end 5. Two rollers 8 are located at the other end of the needle array units 2, away from the feed end 5 or the discharge end 6. Both rollers 8 are positioned on the side of the nonwoven fabric 4 facing the feed end 5 or the discharge end 6, and tension the nonwoven fabric 4. The two rollers 8 are spaced apart vertically. Guided by the two rollers 8, the nonwoven fabric 4 extends in one direction from the feed end 5, bends, then returns toward the feed end 5, and is ultimately discharged at the discharge end 6 directly above the feed end 5.

[0056] Each roller 8 moves along the vertical direction and adjusts the inclination angle of the non-woven fabric 4 portion between the roller 8 and the feed end 5 or the non-woven fabric 4 portion between the roller 8 and the discharge end 6 to the horizontal plane.

[0057] Two bases 1 are arranged on the acupuncture mechanism body 7 along the vertical direction. The two bases 1 move synchronously, and the acupuncture array units 2 on the two bases 1 respectively acupuncture the same surface or two surfaces of the non-woven fabric 4.

[0058] Therefore, in this embodiment, the portion of the non-woven fabric 4 between the roller 8 and the feed end 5 and the portion of the non-woven fabric 4 between the roller 8 and the discharge end 6 are two working sections 41, and the two working sections 41 are inclined in opposite directions to the horizontal plane.

[0059] If the two bases 1 are located at the same end faces of the two working sections 41, since the non-woven fabric 4 bends and extends back, the two bases 1 are actually facing two different surfaces of the non-woven fabric 4. Therefore, the two bases 1 move synchronously, and the needling array units 2 on the two bases 1 can simultaneously needle the two surfaces of the non-woven fabric 4. By driving the two bases 1 to move in one step simultaneously, the two working sections 41 located on two different surfaces of the non-woven fabric 4 can be needled simultaneously.

[0060] exist Figure 2 In the preferred embodiment shown, compared to the previous embodiment, if the two bases 1 are located at opposite ends of the two working sections 41, the two bases 1 are actually facing the same surface of the non-woven fabric 4. Therefore, the two bases 1 move synchronously, and the needling array units 2 on the two bases 1 respectively needle the two working sections 41 located on the same surface of the non-woven fabric 4.

[0061] exist Figure 4 In a preferred embodiment shown, the present invention can actually perform needling operations at different angles in the two working sections 41, but in this embodiment, the two rollers 8 move simultaneously in opposite directions along the plumb line direction, so that the two working sections 41 have the same inclination angle with the horizontal plane.

[0062] Since the roller 8 located in the working section 41 moves along the plumb line, the inclination angle of the working section 41 and the horizontal plane changes accordingly. Therefore, the principle of this case is to control the inclination angle of the non-woven fabric 4 by moving the roller 8 up and down. In order to quickly know the inclination angle of the non-woven fabric 4, the inclination angle of the working section 41 and the horizontal plane can be converted by the Pythagorean theorem to be:

[0063] a= tan -1 ((BA) / 2L) (1),

[0064] Among them, a represents the inclination angle of the working section 41 and the horizontal plane, A represents the distance between the two rollers 8 along the vertical direction, B represents the distance between the feed end 5 and the discharge end 6 along the vertical direction and remains unchanged, and L represents the distance between the roller 8 and the feed end 5 or the discharge end 6 along the horizontal direction and remains unchanged.

[0065] exist Figure 4 In the preferred embodiment shown, when the inclination angle of the working section 41 to the horizontal plane changes, since the principle of this case is to control the up and down movement of each acupuncture array unit 2 by the up and down movement of the movable portion 32, thereby changing the inclination angle of the formed acupuncture surface, the moving distance of the movable portion 32 along the vertical direction can be converted into, using the Pythagorean theorem,

[0066] d=|h 1 -h 2 |= S×|tan(a 1 )- tan(a 2 ) | (2),

[0067] h=S×tan(a) (3),

[0068] Among them, d represents the moving distance of the movable part 32 along the plumb line direction, h represents the height difference along the plumb line direction at both ends of the arrangement direction of the plurality of needle array units 2, and S represents the horizontal distance between the sharp ends of the two needle array units 2 at both ends of the arrangement direction of the needle array units 2 and remains unchanged.

[0069] When the working section 41 is in the initial state, the inclination angle of the working section 41 to the horizontal plane is a 1 At this time, the inclination angle of the needle punching surface formed by each needle punching row unit 2 is also a 1 At this time, the height difference of the sharp ends of the two needle array units 2 at both ends of the arrangement direction of the needle array unit 2 along the plumb line is h 1 When the inclination angle of the horizontal plane of the working section 41 is adjusted to a 2 At this time, the inclination angle of the needle punching surface formed by each needle punching row unit 2 is also a 2At this time, the height difference of the sharp ends of the two needle array units 2 at both ends of the arrangement direction of the needle array unit 2 along the plumb line is h 2 ; Since the inclination angle change of the working section 41 is actually very small in actual implementation, d represents the moving distance of the movable part 32 along the plumb line direction, which can be approximately regarded as the distance moved by the sharp end of the acupuncture column unit 2 close to the movable part 32 when switching between two states.

[0070] It should be noted that, since the vertical movement height of the movable portion 32 is actually different from the maximum movement distance of the needling array unit 2, and the mechanical structure itself has a large error range, the purpose of the formula in this case is to describe the principle of obtaining the corresponding parameters.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guide device for nonwoven fabric manufacturing equipment, characterized in that: It comprises a base (1), a needle array unit (2) and a guide assembly (3); The base (1) is arranged on one side surface of the non-woven fabric (4) and moves toward or away from the surface of the non-woven fabric (4); A plurality of the needle array units (2) are arranged on the end surface of the base (1) facing the non-woven fabric (4) along the extension direction of the non-woven fabric (4), and each of the needle array units (2) moves synchronously relative to the base (1) toward or away from the surface of the non-woven fabric (4), so that the sharp ends of the plurality of needle array units (2) are at the same distance from the surface of the non-woven fabric (4); The guide assembly (3) drives the plurality of acupuncture array units (2) to move synchronously and locks the positions of the acupuncture array units (2); The guide assembly (3) includes a fixed portion (31), a movable portion (32), a limiting rod (33), a sliding pin (34), a rotation drive mechanism (35) and a screw (36); A plurality of slots (101) are provided on the end surface of the base (1) facing the non-woven fabric (4) along the extension direction of the non-woven fabric (4), and both ends of the slots (101) extend along the moving direction of the needle array unit (2), and one end of each needle array unit (2) away from the non-woven fabric (4) is inserted into each slot (101) in a one-to-one correspondence and moves along the slot (101); The fixed portion (31) and the movable portion (32) are both arranged on the base (1) and located at both ends of the arrangement direction of the plurality of acupuncture row units (2); The movable portion (32) moves relative to the base (1) along the moving direction of the acupuncture row unit (2); At least one of the limiting rods (33) is arranged on the side of the arrangement direction of the plurality of acupuncture array units (2), one end of the limiting rod (33) is hinged to the fixed portion (31) and the other end is capable of rotating around the hinged portion, and a sliding groove (301) is provided on the limiting rod (33) along the extending direction of the limiting rod (33); A plurality of sliding pins (34) are arranged one by one on the side of each acupuncture row unit (2) and the side of the movable portion (32), and each of the sliding pins (34) is inserted into the sliding groove (301) and moves along the sliding groove (301); The rotary drive mechanism (35) is arranged on the base (1) and has a drive portion; One end of the screw (36) is connected to the driving portion and the other end extends along the moving direction of the acupuncture row unit (2); The movable portion (32) is sleeved on the screw rod (36) and is threadedly connected to the screw rod (36).

2. A nonwoven fabric manufacturing device, comprising the guide device of the nonwoven fabric manufacturing device according to claim 1, characterized in that: It also includes a feed end (5), a discharge end (6), a needle punching mechanism body (7) and a roller (8); The positions of the feed end (5) and the discharge end (6) remain fixed, and the portion of the non-woven fabric (4) between the feed end (5) and the discharge end (6) is tightened; A base (1) is provided on the acupuncture mechanism body (7) and the base (1) is driven to move along the plumb line direction, the sharp end of the acupuncture array unit (2) is directed toward the non-woven fabric (4) along the plumb line direction, and the acupuncture array unit (2) moves synchronously with the base (1) and penetrates into or detaches from the non-woven fabric (4); The roller (8) is arranged between the feed end (5) and the discharge end (6) and is in close contact with the surface of the non-woven fabric (4). The roller surface of the roller (8) is in close contact with the surface of the non-woven fabric (4). The roller (8) moves along the plumb line so that the surface of the non-woven fabric (4) is tilted relative to the horizontal plane and the tilt angle is changed.

3. The nonwoven fabric manufacturing equipment according to claim 2, characterized in that: The feed end (5) and the discharge end (6) are arranged at the same end in the arrangement direction of the needle array unit (2), and the discharge end (6) is arranged directly above the feed end (5) along the vertical direction; The two rollers (8) are arranged at the other end of the arrangement direction of the needle punching array unit (2) and away from the feed end (5) or the discharge end (6); the two rollers (8) are simultaneously arranged on the surface of the non-woven fabric (4) facing the feed end (5) or the discharge end (6) and tighten the non-woven fabric (4); the two rollers (8) are arranged at intervals along the vertical direction; each roller (8) moves along the vertical direction and adjusts the inclination angle of the non-woven fabric (4) portion between the roller (8) and the feed end (5) or the non-woven fabric (4) portion between the roller (8) and the discharge end (6) and the horizontal plane; Two bases (1) are arranged on the acupuncture mechanism body (7) along the plumb line direction. The two bases (1) move synchronously, and the acupuncture array units (2) on the two bases (1) respectively acupuncture the same surface or two surfaces of the non-woven fabric (4).

4. The nonwoven fabric manufacturing equipment according to claim 3, characterized in that: The non-woven fabric (4) portion between the roller (8) and the feed end (5) and the non-woven fabric (4) portion between the roller (8) and the discharge end (6) are two operating sections (41), and the two operating sections (41) are inclined in opposite directions relative to the horizontal plane.

5. The nonwoven fabric manufacturing equipment according to claim 4, characterized in that: When the two bases (1) are located at the end surfaces of the two working sections (41) facing the same direction, the two bases (1) move synchronously and the needle punching array units (2) on the two bases (1) simultaneously needle punch the two surfaces of the non-woven fabric (4); When the two bases (1) are located at opposite end faces of the two operating sections (41), the two bases (1) move synchronously and the needle punching array units (2) on the two bases (1) respectively perform needle punching on the same surface of the non-woven fabric (4).

6. The nonwoven fabric manufacturing equipment according to claim 4, characterized in that: The two rollers (8) move simultaneously in opposite directions along the vertical line, so that the two working sections (41) have the same inclination angle with the horizontal plane.

7. The nonwoven fabric manufacturing equipment according to claim 6, characterized in that: After the roller (8) located in the working section (41) moves in the direction of the plumb line, the inclination angle of the working section (41) and the horizontal plane changes accordingly. The inclination angle of the working section (41) and the horizontal plane is, <h2 style=";text-align:left;direction:ltr">a=tan<h2 style=";text-align:left;direction:ltr"> -1 <h2 style=";text-align:left;direction:ltr"> ((BA) / 2L) (1)), Wherein, a represents the inclination angle of the working section (41) with the horizontal plane, A represents the distance between the two rollers (8) along the vertical direction, B represents the distance between the feed end (5) and the discharge end (6) along the vertical direction, and L represents the distance between the roller (8) and the feed end (5) or the discharge end (6) along the horizontal direction.

8. The nonwoven fabric manufacturing equipment according to claim 7, characterized in that: When the inclination angle of the working section (41) and the horizontal plane changes, the moving distance of the movable part (32) along the vertical line direction is, d=|h 1 -h 2 |= S×|tan(a 1 )- so(to) 2 ) | (2), h=S×tan(a) (3), Wherein, d represents the moving distance of the movable portion (32) along the plumb line direction, h represents the height difference along the plumb line direction at both ends of the arrangement direction of the plurality of acupuncture array units (2), and S represents the horizontal distance between the sharp ends of the two acupuncture array units (2) at both ends of the arrangement direction of the acupuncture array units (2).

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