Fiberboard needling mechanism capable of adjusting distances between different needles

Abstract

The utility model provides a fiberboard needling mechanism capable of adjusting different needle spacing, which comprises a back plate, a plurality of groups of needling mechanisms with adjustable needles are arranged on the back plate, and each needling mechanism with adjustable needles is composed of a spacing adjusting mechanism and a plurality of needling mechanisms arranged on the spacing adjusting mechanism in a transmission manner. The multiple sets of needling mechanisms with the adjustable needling needles are arranged on the back plate, the distance between the needling needles on the needling mechanisms with the adjustable needling needles can be adjusted through the needling mechanisms with the adjustable needling needles, fiber cloth with different widths can be met, in addition, the distance between the needling needles of each set of needling mechanism with the adjustable needling needles can be adjusted to be different, and therefore the requirement for fiber cloth with different widths can be met. And the problem that the needling density is affected due to the fact that the single-row spacing is large can be solved, and therefore the effect of adapting to the carbon fiber cloth with different widths is achieved on the premise that the needling quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of fiberboard needling, in particular to a fiberboard needling mechanism capable of adjusting different needle spacings. Background Art

[0002] As a high-performance material, carbon fiber cloth has shown wide application potential in improving the quality of life of residents due to its light weight and flexibility. The needling process, especially the dry needling process, is a key strengthening technology for manufacturing carbon fiber cloth. The barbs on the special needle plate penetrate and hook the fiber mesh to form a stable interwoven structure, thereby enhancing the overall performance of the material.

[0003] In the existing needling process, the needle board is equipped with multiple rows of needles with fixed spacing, which can process carbon fiber cloth in batches. However, this design has limitations, that is, the spacing between the needles in each row cannot be adjusted, which limits the size range of the processed carbon fiber cloth. Once it is necessary to process cloth of different widths, the needle board needs to be replaced, which not only increases the complexity of the operation, but also reduces production efficiency. Therefore, a fiberboard needling mechanism with adjustable spacing between different needles is proposed to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a fiberboard needling mechanism with adjustable needle spacing to solve the problem that when processing fabrics of different widths, the needle board needs to be replaced, which not only increases the complexity of operation but also reduces production efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a fiberboard needling mechanism with adjustable needle spacing, comprising a back plate, on which a plurality of groups of needling mechanisms with adjustable needles are arranged, and the needling mechanism with adjustable needles is composed of a spacing adjustment mechanism and a plurality of needling mechanisms transmission-arranged on the spacing adjustment mechanism;

[0006] The spacing adjustment mechanism comprises a U-shaped frame, in which a pitch-changing screw rod is rotatably arranged through a bearing, an opening end of the U-shaped frame is provided with no less than two limit sliding rods, and a driving mechanism for driving the pitch-changing screw rod to rotate is arranged on one side of the U-shaped frame;

[0007] The pricking mechanism comprises a sliding part slidably arranged on the limit sliding rod, a guide block is arranged on the back of the sliding part, the end of the guide block extends to the corresponding guide wire groove of the variable pitch lead screw, and a pricking part is arranged on the sliding part.

[0008] In the preferred embodiment, the variable pitch screw rod includes a guide rotating rod rotatably arranged in a U-shaped frame through a bearing, a circular guide wire groove is arranged on the outside of the guide rotating rod, and two groups of variable pitch spiral guide wire grooves are symmetrically arranged on the outside of the guide rotating rod with the circular guide wire groove as the center. The number of each group of variable pitch spiral guide wire grooves is multiple, and the closer to the circular guide wire groove, the smaller the pitch and spiral length.

[0009] In the preferred embodiment, the side plate on one side of the U-shaped frame extends to the back side of its bottom plate, and the driving mechanism includes a driving motor arranged on the side plate extension section, the output shaft of the driving motor rotatably passes through the side plate extension section and is provided with a transmission wheel, and the end of the variable pitch screw rod close to the transmission wheel passes through the side plate and is provided with a driven wheel, and a transmission belt is installed between the driven wheel and the transmission wheel.

[0010] In a preferred embodiment, a protective shell is provided on the outer side of the side plate provided with the extension section, and the protective shell covers the driven wheel, the transmission wheel and the transmission belt.

[0011] In a preferred embodiment, a mounting opening is provided on the back plate for the protruding portion of the spacing adjustment mechanism to pass through.

[0012] In the preferred embodiment, a limiting hole is provided on the sliding part for the limiting sliding rod to pass through, and a docking groove is provided on the top of the sliding part;

[0013] The acupuncture part includes a buffer shell with a cavity inside and an opening at the front end. The opposite side walls of the buffer shell are provided with limiting slide grooves. A puncture needle seat body is movably provided in the cavity of the buffer shell. A puncture needle seat body is provided at the end of the puncture needle seat body to pass through the opening of the buffer shell. Limiting sliders slidably connected to the limiting slide grooves are respectively provided on both sides of the puncture needle seat body. An internal threaded sleeve is provided at the end of the buffer shell. An adjusting screw is threadedly installed in the internal threaded sleeve. A resistance block is movably provided in the buffer shell. A buffer spring is provided between the resistance block and the puncture needle seat body. The resistance block resists with the end of the adjusting screw under the tension of the buffer spring. A docking seat adapted to the docking groove is provided at the bottom of the buffer shell, and the docking seat is fixed to the docking groove by screws.

[0014] In the preferred embodiment, the buffer shell is composed of an upper shell and a lower shell. The upper shell and the lower shell divide the limiting slide groove into two sections. The upper shell and the lower shell are connected by a connecting block.

[0015] The utility model provides a fiberboard needling mechanism with adjustable needle spacings. By arranging a plurality of needling mechanisms with adjustable needles on a back plate, the needle spacings thereon can be adjusted through the needling mechanisms with adjustable needles to meet the needs of fiber cloths with different widths. In addition, by adjusting the needles of each group of needling mechanisms with adjustable needles to different spacings, the problem of affecting the needling density due to a large single-row spacing can be avoided, thereby achieving the effect of adapting to carbon fiber cloths with different widths while ensuring the needling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is the overall structure diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the acupuncture mechanism with adjustable acupuncture needles of the utility model;

[0019] Figure 3 This is a structural diagram of the spacing adjustment mechanism of the utility model;

[0020] Figure 4 This is a structural diagram of the back plate of the utility model;

[0021] Figure 5 This is a structural diagram of the needle mechanism of the utility model;

[0022] Figure 6 This is a cross-sectional view of the acupuncture part structure of the utility model;

[0023] Figure 7 This is a structural diagram of the buffer housing of the utility model;

[0024] In the figure: back plate 1; mounting opening 101; acupuncture mechanism 2 with adjustable needles; spacing adjustment mechanism 21; U-shaped frame 210; variable pitch lead screw 211; guide rotating rod 2110; annular guide wire groove 2111; variable pitch spiral guide wire groove 2112; driven wheel 212; driving motor 213; transmission wheel 214; limiting slide bar 215; transmission belt 216; needle mechanism 22; sliding part 2210; limiting hole 2211; guide block 2212; docking groove 2213; acupuncture part 222; buffer shell 2220; limiting slide groove 2221; needle seat body 2222; buffer spring 2223; needle 2224; limiting slide block 2225; internal thread sleeve 2226; adjusting screw 2227; abutment block 2228; docking seat 2229; upper shell 300; lower shell 400; connecting block 401. DETAILED DESCRIPTION

[0025] like Figure 1-7As shown, a fiberboard needling mechanism with adjustable needle spacing includes a back plate 1, on which a plurality of groups of needling mechanisms 2 with adjustable needles are arranged, the needling mechanisms 2 with adjustable needles are fixed to the back plate 1 by bolts, the needling mechanisms 2 with adjustable needles are composed of a spacing adjustment mechanism 21 and a plurality of needling mechanisms 22 which are transmission-arranged on the spacing adjustment mechanism 21, and the number of the needling mechanisms 22 is odd. In this embodiment, the number of the needling mechanisms 2 with adjustable needles is three, and the number of the needling mechanisms 22 on each needling mechanism 2 with adjustable needles is seven. The spacing between the seven needling mechanisms 22 thereon can be synchronously adjusted by the spacing adjustment mechanism 21, so as to adapt to carbon fiber cloths of different widths, and the three needling mechanisms 2 with adjustable needles are adjusted to different spacings, so as to avoid the problem of affecting the needling density due to the large single-row spacing, thereby achieving the effect of adapting to carbon fiber cloths of different widths under the premise of ensuring the needling quality;

[0026] The spacing adjustment mechanism 21 includes a U-shaped frame 210, in which a pitch-changing screw rod 211 is rotatably arranged through a bearing, and at least two limit slide bars 215 are arranged at the open end of the U-shaped frame 210. In this embodiment, the number of the limit slide bars 215 is two, and a driving mechanism for driving the pitch-changing screw rod 211 to rotate is arranged on one side of the U-shaped frame 210, so that the pitch-changing screw rod 211 rotates in the U-shaped frame 210 under the drive of the driving mechanism;

[0027] The pricking mechanism 22 includes a sliding portion 2210 slidably arranged on the limiting slide bar 215, a guide block 2212 is arranged on the back of the sliding portion 2210, the end of the guide block 2212 extends to the corresponding guide wire groove of the variable pitch screw 211, and a pricking portion 222 is arranged on the sliding portion 2210. When in use, the sliding portion 2210 is limited by the limiting slide bar 215 and the variable pitch screw 211 is rotated, so that the sliding portion 2210 is displaced under the sliding guiding action of the guide block 2212 and the guide wire groove, and then the synchronous spacing adjustment of multiple pricking mechanisms 22 is realized through the guide wire groove arranged on the variable pitch screw 211.

[0028] In the preferred embodiment, the variable pitch screw 211 includes a guide rotating rod 2110 rotatably arranged in the U-shaped frame 210 through a bearing, a circular guide wire groove 2111 is arranged on the outside of the guide rotating rod 2110, and the needle mechanism 22 located at the center is slidably connected to the circular guide wire groove 2111 through a guide block 2212 thereon. Two groups of variable pitch spiral guide wire grooves 2112 are symmetrically arranged on the outside of the guide rotating rod 2110 with the circular guide wire groove 2111 as the center. The number of each group of variable pitch spiral guide wire grooves 2112 is multiple, and the closer to the circular guide wire groove 2111, the greater the pitch and spiral length. The smaller it is, in the present embodiment, the number of each group of variable pitch spiral guide wire grooves 2112 is three, for a total of six, and the remaining six needle mechanisms 22 are slidably connected with the six variable pitch spiral guide wire grooves 2112 respectively through the guide blocks 2212 thereon. When the guide rotating rod 2110 rotates, the needle mechanism 22 located in the middle remains motionless under the action of the circular guide wire groove 2111, and the other six needle mechanisms 22 are synchronously displaced inward or outward with the middle needle mechanism 22 as the center under the action of the corresponding six variable pitch spiral guide wire grooves 2112, thereby achieving the effect of adjusting the spacing.

[0029] In the preferred embodiment, the U-shaped frame 210 is composed of a bottom plate and two side plates. The side plate on one side of the U-shaped frame 210 extends to the back of its bottom plate. The driving mechanism includes a driving motor 213 arranged on the side plate extension section. The output shaft of the driving motor 213 can rotatably pass through the side plate extension section and is provided with a transmission wheel 214. The end of the variable pitch screw rod 211 close to the transmission wheel 214 passes through the side plate and is provided with a driven wheel 212. A transmission belt 216 is installed between the driven wheel 212 and the transmission wheel 214. When in use, the variable pitch screw rod 211 is driven to rotate in the U-shaped frame 210 through the driving force of the driving motor 213 and the transmission between the driven wheel 212, the transmission wheel 214 and the transmission belt 216.

[0030] In a preferred embodiment, a protective shell is provided on the outer side of the side plate provided with the extension section, and the protective shell covers the driven wheel 212, the transmission wheel 214 and the transmission belt 216, so that the effect of protecting the driving mechanism can be achieved through the protective shell.

[0031] In the preferred embodiment, a mounting opening 101 is provided on the back plate 1 for the protruding part of the spacing adjustment mechanism 21 to pass through, and a through hole is also provided on the back plate 1 for fixing the spacing adjustment mechanism 21 by bolts. The spacing adjustment mechanism 21 is fixed by bolts through threaded holes on the back or fixing plates on both sides.

[0032] In the preferred embodiment, the sliding part 2210 is provided with a limiting hole 2211 for the limiting slide bar 215 to pass through, the number and position of the limiting holes 2211 are adapted to the limiting slide bar 215, the sliding part 2210 slides on the limiting slide bar 215 through the limiting holes 2211, and the top of the sliding part 2210 is provided with a docking groove 2213 for mounting the acupuncture part 222;

[0033] The pricking part 222 includes a buffer shell 2220 with a cavity inside and an opening at the front end. The opposite side walls of the buffer shell 2220 are provided with limiting slide grooves 2221. A pricking needle seat body 2222 is movably provided in the cavity of the buffer shell 2220. A pricking needle 2224 is fixedly provided at the end of the pricking needle seat body 2222 to pass through the opening of the buffer shell 2220. Limiting sliders 2225 slidably connected to the limiting slide grooves 2221 are respectively provided on both sides of the pricking needle seat body 2222. The sliding of the limiting slider 2225 in the limiting slide groove 2221 can play an effect of slidingly limiting the pricking needle seat body 2222.

[0034] An internal threaded sleeve 2226 is provided at the end of the buffer housing 2220, and an adjusting screw 2227 is threadedly installed in the internal threaded sleeve 2226. A resisting block 2228 is movably provided in the buffer housing 2220, and a buffer spring 2223 is provided between the resisting block 2228 and the needle seat body 2222. The resisting block 2228 resists the end of the adjusting screw 2227 under the tension of the buffer spring 2223. During acupuncture, the buffer spring 2223 can play a buffering role, and the effect of adjusting the buffer force can be achieved by rotating the adjusting screw 2227.

[0035] A docking seat 2229 matched with the docking groove 2213 is provided at the bottom of the buffer shell 2220 . The docking seat 2229 and the docking groove 2213 are fixed by screws, and the docking groove 2213 and the docking seat 2229 are docked.

[0036] In the preferred embodiment, the buffer shell 2220 is composed of an upper shell 300 and a lower shell 400. The upper shell 300 and the lower shell 400 divide the limiting slide groove 2221 into two sections. The upper shell 300 and the lower shell 400 are connected by a connecting block 401. The connecting block 401 fixes the upper shell 300 and the lower shell 400 by screws. The detachable buffer shell 2220 facilitates the disassembly and assembly of the needle seat 2222 and the needle 2224.

[0037] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A fiberboard needling mechanism with adjustable needle spacing, characterized by: The invention comprises a back plate (1), on which a plurality of groups of acupuncture mechanisms (2) with adjustable acupuncture needles are arranged, and the acupuncture mechanisms (2) with adjustable acupuncture needles are composed of a spacing adjustment mechanism (21) and a plurality of acupuncture needle mechanisms (22) which are transmission-arranged on the spacing adjustment mechanism (21); The spacing adjustment mechanism (21) comprises a U-shaped frame (210), a pitch-changing screw rod (211) being rotatably arranged in the U-shaped frame (210) via a bearing, at least two limit sliding rods (215) being arranged at an open end of the U-shaped frame (210), and a driving mechanism for driving the pitch-changing screw rod (211) to rotate being arranged at one side of the U-shaped frame (210); The pricking mechanism (22) comprises a sliding portion (2210) slidably arranged on a limit sliding rod (215), a guide block (2212) being arranged on the back side of the sliding portion (2210), an end of the guide block (2212) extending into a corresponding guide wire groove of the variable pitch lead screw (211), and a pricking portion (222) being arranged on the sliding portion (2210).

2. The fiberboard needling mechanism capable of adjusting different needle spacings according to claim 1, characterized in that: The variable pitch screw rod (211) comprises a guide rotating rod (2110) rotatably arranged in a U-shaped frame (210) via a bearing, a circular guide wire groove (2111) being arranged outside the guide rotating rod (2110), and two groups of variable pitch spiral guide wire grooves (2112) being symmetrically arranged outside the guide rotating rod (2110) with the circular guide wire groove (2111) as the center, each group of variable pitch spiral guide wire grooves (2112) having a plurality of numbers, and the closer to the circular guide wire groove (2111), the smaller the pitch and the length of the spiral.

3. The fiberboard needling mechanism capable of adjusting different needle spacings according to claim 1, characterized in that: A side plate on one side of the U-shaped frame (210) extends to the back side of the bottom plate thereof, and the driving mechanism comprises a driving motor (213) arranged on the side plate extension section, an output shaft of the driving motor (213) rotatably passes through the side plate extension section and is provided with a driving wheel (214), an end of the variable pitch lead screw (211) close to the driving wheel (214) passes through the side plate and is provided with a driven wheel (212), and a driving belt (216) is sleeved between the driven wheel (212) and the driving wheel (214).

4. The fiberboard needling mechanism capable of adjusting different needle spacings according to claim 3, characterized in that: A protective shell is provided on the outer side of the side plate provided with the extension section, and the protective shell covers the driven wheel (212), the transmission wheel (214) and the transmission belt (216).

5. The fiberboard needling mechanism capable of adjusting different needle spacings according to claim 3, characterized in that: The back plate (1) is provided with a mounting opening (101) through which the protruding portion of the spacing adjustment mechanism (21) passes.

6. The fiberboard needling mechanism capable of adjusting different needle spacings according to claim 1, characterized in that: The sliding portion (2210) is provided with a limiting hole (2211) for the limiting sliding rod (215) to pass through, and the top of the sliding portion (2210) is provided with a docking groove (2213); The puncture portion (222) comprises a buffer shell (2220) with a hollow interior and an opening at the front end; limiting slide grooves (2221) are arranged on opposite side wall surfaces of the buffer shell (2220); a puncture needle seat (2222) is movably arranged in the cavity of the buffer shell (2220); a puncture needle (2224) is arranged at the end of the puncture needle seat (2222) and extends from the opening of the buffer shell (2220); limiting slide blocks (2225) slidably connected to the limiting slide grooves (2221) are arranged on both sides of the puncture needle seat (2222); and an internal threaded sleeve (2221) is arranged at the end of the buffer shell (2220). 2226), an adjusting screw (2227) is threadedly installed in the internal threaded sleeve (2226), a conflicting block (2228) is movably arranged in the buffer housing (2220), a buffer spring (2223) is arranged between the conflicting block (2228) and the puncture needle seat body (2222), the conflicting block (2228) conflicts with the end of the adjusting screw (2227) under the tension of the buffer spring (2223), a docking seat (2229) adapted to the docking groove (2213) is arranged at the bottom of the buffer housing (2220), and the docking seat (2229) and the docking groove (2213) are fixed by screws.

7. The fiberboard needling mechanism capable of adjusting different needle spacings according to claim 6, characterized in that: The buffer shell (2220) is composed of an upper shell (300) and a lower shell (400). The upper shell (300) and the lower shell (400) divide the limiting slide groove (2221) into two sections. The upper shell (300) and the lower shell (400) are connected via a connecting block (401).

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