CN106637723B - Sleeve slit machine and sleeve slit folding device thereof - Google Patents

Sleeve slit machine and sleeve slit folding device thereof Download PDF

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Publication number
CN106637723B
CN106637723B CN201611183671.1A CN201611183671A CN106637723B CN 106637723 B CN106637723 B CN 106637723B CN 201611183671 A CN201611183671 A CN 201611183671A CN 106637723 B CN106637723 B CN 106637723B
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Prior art keywords
cuff
air suction
strip
sleeve
folding device
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CN106637723A (en
Inventor
陈晓明
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Guangdong Mingde Technology Co Ltd
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Guangdong Mingde Technology Co ltd
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B35/00Work-feeding or -handling elements not otherwise provided for
    • D05B35/02Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05DINDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00Use of special elements
    • D05D2207/02Pneumatic or hydraulic devices
    • D05D2207/04Suction or blowing devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Making Paper Articles (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention provides a sleeve slit machine and a sleeve slit folding device thereof, wherein the sleeve slit folding device of the sleeve slit machine comprises a bottom plate arranged on a machine frame, an air suction plate which is arranged on the bottom plate and is provided with a groove and air suction holes, an air suction device communicated with the air suction holes, a folding device which is arranged on the bottom plate and is used for folding sleeve slit strip cut pieces, and an angle folding device which is arranged on the bottom plate and is used for folding one end of the sleeve slit strip. The sleeve slit machine provided by the invention realizes quick folding of sleeve slit strips, saves the process of manually ironing the folded edges of the sleeve slit strips, reduces the labor intensity of workers and improves the production efficiency.

Description

Sleeve slit machine and sleeve slit folding device thereof
Technical Field
The invention relates to the field of garment processing equipment, in particular to a sleeve slit machine and a sleeve slit folding device thereof.
Background
In the process of making the sleeve vent strip, the cut pieces of the sleeve vent strip need to be folded according to a preset shape. Among the prior art, need iron out the crease to cuff slit piece in advance with the iron, then arrange cuff slit piece in and carry out hem and dog-ear on the cuff machine, then fix fold forming's cuff slit piece on the cuff slit piece to follow-up steps such as conveniently sewing up cuff slit piece and cuff slit piece. Because the crease needs to be ironed manually, the labor intensity of workers is high, and the production efficiency is low.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a sleeve slit machine and a sleeve slit folding device thereof, and aims to save the process of manually ironing the cut pieces of the sleeve slit strips and improve the production efficiency of making the sleeve slit strips.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sleeve vent strip folding device of a sleeve vent machine comprises a bottom plate arranged on a frame of the sleeve vent machine, an air suction plate arranged on the bottom plate and provided with a plurality of air suction holes, an air suction device communicated with the plurality of air suction holes, a folding device arranged on the bottom plate and used for folding sleeve vent strip cut pieces, and an angle folding device arranged on the bottom plate and used for folding one end of the sleeve vent strip; the air suction plate is provided with a groove for placing the sleeve vent strip cutting piece and assisting the sleeve vent strip cutting piece to form a crease for folding edges and a crease for folding corners, and the air suction hole is positioned at the bottom of the groove; the edge folding device comprises a first air cylinder horizontally arranged on the rack, a first motor connected with the first air cylinder, pneumatic clamping jaws eccentrically connected with a main shaft of the first motor, and two clamping pieces connected with the pneumatic clamping jaws and used for clamping sleeve vent strip cutting pieces.
The sleeve vent strip folding device of the sleeve vent machine also comprises a positioning pressing plate which is arranged on the rack and is positioned above the groove; the positioning pressure plate is used for adhering and pressing cuff cut pieces laid on the folded and formed cuff slit.
In the sleeve vent strip folding device of the sleeve vent machine, the horizontal section of the groove comprises a rectangle and a sword point-shaped bulge connected with one end of the rectangle, the sword point-shaped bulge is provided with a V-shaped tip and two straight edges connected with two side edges of the V-shaped tip, and one straight edge of the sword point-shaped bulge is superposed with one long edge of the rectangle.
In the sleeve vent strip folding device of sleeve vent machine, the air suction hole comprises a first air suction hole which is arranged at the bottom of the groove and is positioned below the fixed part of the sleeve vent strip, and a second air suction hole which is arranged at the bottom of the groove and is positioned below the part to be turned over of the sleeve vent strip.
In the sleeve vent strip folding device of the sleeve vent machine, the first air suction hole comprises a plurality of small holes which are arranged at certain intervals along the V-shaped tip of the groove and the bottom edge of one long edge of the groove rectangular part connected with the V-shaped tip of the groove, and a plurality of small holes which are arranged at certain intervals in the middle of the bottom of the groove, and the small holes jointly form the shape of the sleeve vent strip; the second air suction hole is a plurality of small holes which are arranged along the bottom edge of the other straight edge of the rectangle at certain intervals.
In the sleeve vent strip folding device of the sleeve vent machine, a wind shield and a wind shield driving device for blocking the second air suction hole are also arranged on the bottom plate; and after the clamping pieces clamp the sleeve vent strip cutting pieces and turn over, the wind shield driving device drives the wind shield to shield the second air suction hole.
In the sleeve vent strip folding device of the sleeve vent machine, the angle folding device comprises two angle folding pieces and an angle folding piece driving device, the front ends of the two angle folding pieces are respectively provided with an oblique edge, and the two oblique edges are provided with an included angle.
The sleeve vent strip folding device of the sleeve vent machine further comprises an edge sheet arranged on the bottom plate, and the edge sheet is positioned above the two corner sheets.
In the sleeve vent strip folding device of the sleeve vent machine, the air suction device comprises an air suction fan, and the air suction fan is connected with the bottom of the air suction plate through a pipeline and is communicated with the air suction hole.
The invention also provides a sleeve slit machine which comprises the sleeve slit strip folding device.
Has the advantages that:
the invention provides a sleeve slit machine and a sleeve slit folding device thereof, wherein the sleeve slit machine and the sleeve slit folding device thereof realize the quick folding of sleeve slit strips by arranging an air suction plate with a groove and an air suction hole, an air suction device, a corner folding device for folding one end of the sleeve slit strips and a folding device for folding the cut pieces of the sleeve slit strips, save the process of manually ironing the folded edges of the cut pieces of the sleeve slit strips, reduce the labor intensity of workers and improve the production efficiency.
Drawings
Fig. 1 is a perspective view of an sleeve vent strip folding device of a sleeve vent machine provided by the present invention.
Fig. 2 is a perspective view of a folding device in the sleeve vent strip folding device of the sleeve vent machine provided by the invention.
Fig. 3 is a plan view of an air suction plate in the cuff strip folding device of the cuff vent machine provided by the invention in fig. 2.
Fig. 4 is a plan view of an air suction plate and a folding device in the cuff strip folding device of the cuff machine according to the present invention.
Detailed Description
The present invention provides a sleeve slit machine and a sleeve slit folding device thereof, and the purpose, technical scheme and effect of the present invention are clearer and clearer, and the present invention is further described in detail below by referring to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, 2, 3 and 4, the present invention provides an sleeve slit folding device of a sleeve slit machine. In fig. 1, not all the frames of the cuff sewing machine and other parts such as the sewing machine head are shown.
The cuff strip folding device comprises a bottom plate 200 arranged on a frame 100 of the cuff machine, an air suction plate 300 arranged on the bottom plate 200 and provided with a plurality of air suction holes, an air suction device (not shown in the figure) communicated with the air suction holes, a folding device 400 arranged on the bottom plate 200 and used for folding the cuff strip cut pieces, and an angle folding device 500 arranged on the bottom plate 200 and used for folding one end of the cuff strip, wherein a groove 301 used for placing the cuff strip cut pieces and assisting the cuff strip cut pieces to form folding creases for folding the edges and the folding creases for folding the angles is arranged on the air suction plate 300, and the air suction holes are positioned at the bottom of the groove 301; the folding device 400 comprises a first cylinder 401 horizontally arranged on the frame, a first motor 402 connected with the first cylinder, a pneumatic clamping jaw 403 eccentrically connected with a main shaft of the first motor, and two clamping pieces 404 connected with the pneumatic clamping jaw and used for clamping sleeve vent strip cutting pieces. Specifically, the spindle of the first motor 402 is connected with a crank arm 409, and the pneumatic clamping jaw 403 is connected with the crank arm 409, so that the pneumatic clamping jaw is eccentrically connected with the spindle of the motor.
During operation, two clamping pieces of pneumatic clamping jaw are in the open mode during the beginning, and wherein lower clamping piece is arranged in the recess, and after the sleeve vent strip cut-parts were placed on recess and lower clamping piece, the device that induced drafts adsorbed the sleeve vent strip cut-parts in the recess through the hole of induced drafting. As the sleeve slit strip cutting pieces are usually designed with edge folding margins, namely, the positions of the sleeve slit strip cutting pieces needing edge folding exceed the edges of the grooves. Under the effect of induced drafting, the part that the sleeve vent strip cut-parts surpass the recess edge can upwarp along the lateral wall edge of recess, and upwarp partial root forms the crease, then presses the upwarp part along the crease, because fabric self has certain ventilative nature, consequently receives the effect of induced drafting and the action of gravity of self can paste tightly to the recess bottom after sleeve vent strip cut-parts upwarp the part and is pressed. Then the angle folding device folds the angle of one end of the sleeve vent strip to obtain a V-shaped end part. Then hem device work, two clamping pieces of pneumatic clamping jaw are foldd and are carried sleeve vent strip cut-parts, then first motor rotates and drives two clamping pieces and rotate and to make the sleeve vent strip cut-parts wait to turn over a part (the part that sleeve vent strip cut-parts were held by two clamping pieces) and turn over a certain angle after stall, the angle that should turn over a is greater than 90 degrees and is less than 180 degrees, can specifically confirm according to actual production, then lay corresponding sleeve vent cut-parts on the board of inhaling, the below of two clamping pieces is laid to one side of this sleeve vent cut-parts opening part and the top of two clamping pieces is laid to the open-ended opposite side, first motor drives two clamping pieces and continues to rotate until sleeve vent strip cut-parts carry one side of sleeve vent cut-parts completely, the first motor stall is accomplished turning over of sleeve vent strip cut-parts, obtain fold fashioned sleeve vent strip this moment. Then press the position that corresponds the sleeve vent strip on the cuff cut-parts with the hand, first cylinder action drives two clamping pieces and takes out from cuff cut-parts and fold fashioned sleeve vent strip, accomplishes the folding of sleeve vent strip so far, can carry out follow-up processes such as sewing up of sleeve vent strip and cuff cut-parts. When the next sleeve vent strip is folded, the first motor rotates reversely and the first air cylinder pushes forwards to enable the two clamping pieces to return to the initial positions, and therefore a working cycle is formed. Therefore, the sleeve vent strip folding device realizes the rapid folding and forming of the sleeve vent strip cut pieces, simultaneously omits the procedure of ironing creases on the sleeve vent strip cut pieces, and improves the production efficiency of the sleeve vent strip manufacturing.
In order to save manual pressing and keep the cuff cut pieces and the folded and formed cuff strips from moving when the two clip pieces are pulled out of the cuff cut pieces and the folded and formed cuff strips, the cuff strip folding device further comprises a positioning pressing plate 600 which is also arranged on the rack 100 and is positioned above the groove 301, and the positioning pressing plate is driven by an air cylinder; the positioning pressing plate 600 is used for adhering and pressing cuff cut pieces laid on the folded and formed cuff slit. The arrangement of the positioning pressing plate 600 saves the action of pressing the cuff cut-parts by hands of an operator when the clamping piece is pulled away, not only keeps the positions of the cuff cut-parts and the cuff slit strips unchanged, but also reduces the labor intensity of workers and improves the production efficiency.
Referring to fig. 3, in the sleeve top folding device of the sleeve cutting machine, the horizontal section of the groove includes a rectangle 308 and a sword-tip-shaped protrusion 309 connected to one end of the rectangle, the sword-tip-shaped protrusion has a V-shaped tip 3091 and two straight sides 3092 connected to two sides of the V-shaped tip, and one straight side of the sword-tip-shaped protrusion coincides with one long side of the rectangle. The width of the sword point-shaped protrusion is smaller than that of the groove rectangular part, and preferably, the width of the sword point-shaped protrusion is half of that of the groove rectangular part. The two clamping pieces of the pneumatic clamping finger are consistent in shape and are rectangular strips as a whole, the width of each clamping piece is approximately half of that of the groove, and in an initial state, the lower clamping piece is located in the groove and close to one side wall of the groove, and the side wall is not connected with the V-shaped tip. The width of the sleeve vent strip cutting piece is wider than the width of the rectangle, when the sleeve vent strip cutting piece is laid on the groove, the part of the sleeve vent strip cutting piece exceeding the straight edge of the groove respectively tilts along the vertical sides of the two straight edges of the groove under the action of the air suction device, so that two straight lines are folded transversely. Through setting up above-mentioned "V" shape pointed end, made things convenient for the dog-ear device to carry out the dog-ear to the one end of sleeve slit cut-parts and obtained corresponding "V" shape pointed end. In order to facilitate laying of cuff cut pieces, the end portion of the clamping piece is integrally provided with a small rectangular protrusion 4041, and before the clamping piece is turned over, the rectangular protrusion at the end portion of the clamping piece is close to the V-shaped tip of the groove, so that the clamping piece with the rectangular protrusion 4041 can be placed into the groove, the width of the sword point-shaped protrusion of the groove is not less than half of the width of the groove and the width of the rectangular protrusion 4041 at the end portion of the clamping piece.
Further, the cuff strip folding device, wherein the air suction holes formed in the air suction plate 200 include a first air suction hole 302 disposed below the fixing portion of the cuff strip (i.e. the portion of the cuff strip which is not clamped by the clamping piece) and a second air suction hole 303 disposed below the portion to be turned over of the cuff strip. The effect of induced drafting of the production of first suction opening department not only can obtain corresponding crease on cuff slit cut-out to make cuff slit cut-out be fixed in the recess bottom all the time and play the positioning action, do benefit to cuff slit cut-out folding forming process and do not take place the skew, improve the shaping quality of cuff slit. And the second air suction hole is mainly used for forming a crease on one side of the sleeve vent strip cutting piece close to the clamping piece. Furthermore, in order to improve the adsorption effect of the second air suction holes on the sleeve vent strip cut pieces, a plurality of small holes are formed in the two clamping pieces of the pneumatic clamping jaws.
With continuing reference to fig. 4, preferably, the first air suction holes 302 include a plurality of small holes arranged at intervals along the V-shaped tip of the groove and the bottom edge of one long side of the rectangular portion of the groove connected with the V-shaped tip, and a plurality of small holes arranged at intervals in the middle of the bottom of the groove, and the small holes together enclose the shape of an cuff strip; the second air suction holes 303 are a plurality of small holes arranged at a certain interval along the bottom edge of the other straight side of the rectangle. Therefore, under the air suction effect of the air suction holes arranged at the edges of the grooves (including the side parts of the second air suction holes and the first air suction holes) and the supporting effect of the side walls of the grooves, the sleeve vent strip cutting pieces can quickly and effectively form straight creases. In addition, a row of small holes are formed in the middle of the bottom of the groove, so that the shape formed by the first air suction holes is matched with the shape of the sleeve vent strip, the adsorption effect is enhanced, and the forming quality of the sleeve vent strip is further improved.
Referring to fig. 1, after the sleeve slit pieces clamped by the clamping pieces are folded, in order to prevent the air suction effect generated by the second air suction holes from affecting the subsequent laying of the sleeve slit pieces, the bottom plate 200 is further provided with a wind shield 701 and a wind shield driving device 702 for blocking the second air suction holes 303; after the sleeve vent strip cut pieces are clamped by the clamping pieces 404 and turned over, the wind shield driving device 702 drives the wind shield 701 to shield the second air suction hole 302. Due to the blocking of the wind shield, when cuff cut pieces are laid, the second wind suction holes can be prevented from adsorbing the cuff cut pieces, so that the laying work is smoother.
Referring to fig. 4, further, the angle folding device 500 includes two angle folding plates 501 and an angle folding plate driving device 502, the front ends of the two angle folding plates 501 respectively have an oblique edge 503, and the two oblique edges 503 have an included angle. Specifically, under the effect of induced drafting, the cuff strip cut-parts also produce the perk part in recess "V" shape most advanced two hypotenuses department, under dog-ear piece drive arrangement's drive, two dog-ear pieces promote forward in proper order, bulldoze the perk part of above-mentioned "V" shape most advanced cuff strip cut-parts to the recess in, and form a corresponding "V" most advanced on the cuff strip.
Preferably, the included angle of the bevel edges of the two bevel pieces is the same as the angle of the V-shaped tip of the groove, so that the stress of the folded part is uniform during beveling, no wrinkle is generated, and the beveling quality of the sleeve vent strip cut pieces is improved.
Referring to fig. 1, after the cuff cut pieces are laid on the folded cuff strips, the bevel sheet driving device drives the two bevel sheets to return, and in order to prevent the two bevel sheets 501 from moving when returning, a position-by-position sheet 800 is disposed on the bottom plate, and the position-by-position sheet is located above the two bevel sheets 501 of 800. That is, the two corner pieces are freely withdrawn from the lower part of the para-position sheet by the separation of the para-position sheet, and do not rub against the cuff cut pieces, so that the cuff cut pieces are not moved. Preferably, the above-mentioned bevel blade driving device is an air cylinder.
In this embodiment, the air suction device includes a suction fan (not shown in the drawings), and the suction fan is connected to the bottom of the air suction plate through a pipe and is communicated with the air suction hole.
Furthermore, the cuff strip folding device further comprises a first laser lamp and a second laser lamp (not shown) arranged on the machine frame 100; the first laser lamp and the second laser lamp project two first light beams and two second light beams which are perpendicular to each other and used for positioning sleeve vent strip cut pieces on the groove. The first light beam passes through the vertex of the V-shaped tip of the groove along the length direction of the groove, and the second light beam passes through the root of the V-shaped tip of the groove. Cut out good cuff cut-parts in advance also has a pointed end usually, when laying sleeve vent strip cut-parts, only need correspond the most advanced summit of cuff cut-parts on first light beam to let it treat that the partial front end edge aligns the second light beam, just indicate that sleeve vent strip cut-parts are placed in place, and is simple swift, is favorable to improving production efficiency.
The invention also provides a sleeve slit machine which comprises the sleeve slit strip folding device. This sleeve slit machine can be with the quick folding type of sleeve slit strip cut-parts to sew up sleeve slit strip after cut-parts and the folding type fast.
In conclusion, the process of manually ironing the edges of the sleeve vent strip cut pieces is omitted and the production efficiency is improved by arranging the air suction plate with the groove and the air suction hole, the air suction device, the angle folding device for folding the angle of one end of the sleeve vent strip and the edge folding device for folding the sleeve vent strip cut pieces. Meanwhile, the positions of the cuff cut pieces and the formed cuff slit strips are kept unchanged when the pressing sheets of the pneumatic clamping jaws return by arranging the positioning pressing plates, and the labor intensity of workers is reduced; by arranging the wind shield, the laying work of cuff cut pieces is smoother; the bevel edge with a specific angle is arranged on the bevel sheet, so that wrinkles are prevented from being generated during beveling; through setting up first radium shot-light and second radium shot-light, reduced sleeve slit strip cut-parts laying time, further improved production efficiency.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.

Claims (10)

1. A sleeve vent strip folding device of a sleeve vent machine comprises a bottom plate arranged on a frame of the sleeve vent machine, an air suction plate arranged on the bottom plate and provided with a plurality of air suction holes, an air suction device communicated with the air suction holes, a folding device arranged on the bottom plate and used for folding sleeve vent strip cut pieces, and an angle folding device arranged on the bottom plate and used for folding one end of the sleeve vent strip, and is characterized in that the air suction plate is provided with a groove used for placing the sleeve vent strip cut pieces and assisting the sleeve vent strip cut pieces to form folding lines and folding lines for folding the edges, and the air suction holes are positioned at the bottom of the groove; the edge folding device comprises a first air cylinder horizontally arranged on the rack, a first motor connected with the first air cylinder, pneumatic clamping jaws eccentrically connected with a main shaft of the first motor, and two clamping pieces connected with the pneumatic clamping jaws and used for clamping sleeve vent strip cutting pieces.
2. The cuff strip folding device of a cuff machine as claimed in claim 1, further comprising a positioning pressing plate disposed on the frame and above the groove; the positioning pressing plate is used for adhering and pressing cuff cut pieces laid on the folded and formed cuff slit strips.
3. The cuff strip folding device of a cuff machine as claimed in claim 2, wherein the horizontal cross section of the groove comprises a rectangle and a sword point shaped protrusion connected with one end of the rectangle, the sword point shaped protrusion has a V-shaped tip and two straight sides connected with two sides of the V-shaped tip, and one straight side of the sword point shaped protrusion coincides with one long side of the rectangle.
4. The cuff strip folding device of the cuff machine as claimed in claim 3, wherein the air suction holes comprise a first air suction hole arranged at the bottom of the groove and located below the fixing part of the cuff strip cut piece, and a second air suction hole arranged at the bottom of the groove and located below the part to be folded of the cuff strip cut piece.
5. The cuff strip folding device of the cuff machine as claimed in claim 4, wherein the first air suction hole comprises a plurality of small holes arranged at a certain interval along the V-shaped tip of the groove and the bottom edge of one long side of the groove rectangular part connected with the V-shaped tip of the groove, and a plurality of small holes arranged at a certain interval in the middle of the bottom of the groove, and the small holes together enclose the shape of the cuff strip; the second air suction hole is a plurality of small holes which are arranged along the bottom edge of the other straight edge of the rectangle at certain intervals.
6. The cuff strip folding device of the cuff machine as claimed in claim 5, wherein the bottom plate is further provided with a wind shield and a wind shield driving device for blocking the second air suction hole; and after the clamping pieces clamp the sleeve vent strip cutting pieces and turn over, the wind shield driving device drives the wind shield to shield the second air suction hole.
7. The cuff strip folding device of a cuff machine as claimed in claim 2, wherein said bevel device comprises two bevel pieces and a bevel piece driving device, the front ends of said two bevel pieces respectively have a bevel edge, and said two bevel edges have an included angle.
8. The cuff strip folding device of a cuff machine as claimed in claim 7, further comprising an edge piece disposed on the bottom plate, wherein the edge piece is located above the two corner pieces.
9. The cuff strip folding device of the cuff machine as claimed in claim 8, wherein the air suction device comprises a suction fan connected to the bottom of the air suction plate through a pipe and communicated with the air suction hole.
10. A sleeve slit machine characterized by comprising the sleeve slit folding device of the sleeve slit machine according to any one of claims 1 to 9.
CN201611183671.1A 2016-12-20 2016-12-20 Sleeve slit machine and sleeve slit folding device thereof Active CN106637723B (en)

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CN201611183671.1A CN106637723B (en) 2016-12-20 2016-12-20 Sleeve slit machine and sleeve slit folding device thereof

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Application Number Priority Date Filing Date Title
CN201611183671.1A CN106637723B (en) 2016-12-20 2016-12-20 Sleeve slit machine and sleeve slit folding device thereof

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CN106637723B true CN106637723B (en) 2022-05-31

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