CN111607917B - Deviation-preventing sheet feeding structure for material belt and sheet ironing machine - Google Patents
Deviation-preventing sheet feeding structure for material belt and sheet ironing machine Download PDFInfo
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- CN111607917B CN111607917B CN202010430534.3A CN202010430534A CN111607917B CN 111607917 B CN111607917 B CN 111607917B CN 202010430534 A CN202010430534 A CN 202010430534A CN 111607917 B CN111607917 B CN 111607917B
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- sheet feeding
- sheet
- wheel
- needle bar
- driven wheel
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C7/00—Special-purpose or automatic embroidering machines
- D05C7/08—Special-purpose or automatic embroidering machines for attaching cords, tapes, bands, or the like
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C13/00—Auxiliary devices incorporated in embroidering machines, not otherwise provided for; Ancillary apparatus for use with embroidering machines
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a material belt deviation preventing sheet feeding structure and a sheet ironing machine, wherein a row of needle punching rod assemblies are arranged in the width direction of a needle rod frame, each needle punching rod assembly comprises a needle punching rod and a needle punching installed at the bottom of the needle punching rod, the needle punching punches down a sheet ironing on a material belt conveyed below, and a sheet feeding roller assembly is installed at the rear side of the bottom of the needle rod frame; a front guide wheel shaft is arranged in front of the bottom of the needle bar frame, and a front guide wheel for guiding the material belt to be conveyed backwards is arranged on the front guide wheel shaft corresponding to each needle bar; the rear guide wheel shaft is arranged at the rear of the bottom of the needle bar frame, a row of rear guide wheels are arranged on the rear guide wheel shaft, and the rear guide wheels and the front guide wheels are matched to guide the material belt to be conveyed between the sheet feeding driven wheel and the sheet feeding roller. The invention can arrange a plurality of pairs of sheet feeding driven wheels and sheet feeding rollers in a limited space, thereby realizing the sheet feeding requirement of a plurality of (color) material belts. And the deviation of the material belt can be avoided.
Description
Technical Field
The invention belongs to the technical field of sheet ironing machines.
Background
In the prior art, the sheet ironing machine has less color of sheet ironing, and if the color needs to be increased, the punching needle component needs to be added on the sheet ironing machine head, so that the size of the sheet ironing machine head is increased, and more machine heads cannot be arranged in a limited space.
The needle bar frame type sheet ironing machine head is used for improving the needle bar frame structure of a common flat embroidery machine, and a plurality of punching needle bar assemblies are arranged on the needle bar frame side by side. Compared with the head of a conventional sheet ironing machine, more needle punching rod assemblies can be arranged in a smaller space, and the color of the sheet ironing is increased.
Corresponding sheet feeding roller assemblies are required to be arranged corresponding to the plurality of needle punching rod assemblies so as to meet the sheet feeding requirements of the plurality of needle punching rod assemblies, and the sheet feeding roller assemblies are required to be arranged in a small space.
In addition, as the punching needle is larger in impact force in the process of punching the sheet, if the material belt is not reasonably guided and limited, the material belt is easy to deviate.
Disclosure of Invention
The invention aims to solve the technical problem of providing the material belt deviation preventing sheet feeding structure, which can realize the sheet feeding requirement of a plurality of material belts in a smaller space compared with the conventional sheet ironing machine head and avoid the material belt deviation.
In order to solve the technical problems, the invention adopts the following technical scheme: the material belt deviation preventing sheet conveying structure is characterized in that a row of needle rod punching assemblies are arranged in the width direction of a needle rod frame, each needle rod punching assembly comprises a needle rod punching and a needle punching arranged at the bottom of the needle rod punching, a scalding sheet on a material belt conveyed below is punched down by the needle punching, a sheet conveying roller assembly is arranged at the rear side of the bottom of the needle rod frame, each sheet conveying roller assembly comprises a sheet conveying transmission seat, a row of sheet conveying rollers and a row of sheet conveying driven wheels, the number of the sheet conveying rollers is equal to that of the sheet conveying driven wheels, and the sheet conveying rollers are in one-to-one correspondence with the needle rod punching assemblies;
a front guide wheel shaft is arranged in front of the bottom of the needle bar frame, and a front guide wheel for guiding the material belt to be conveyed backwards is arranged on the front guide wheel shaft corresponding to each needle bar;
a rear guide wheel shaft is arranged at the rear of the bottom of the needle bar frame, a row of rear guide wheels are arranged on the rear guide wheel shaft, and the rear guide wheels and the front guide wheels are matched to guide a material belt to be conveyed between a sheet feeding driven wheel and a sheet feeding roller;
the automatic sheet feeding device is characterized by further comprising a sheet feeding driving assembly used for driving the sheet feeding driven wheel, the sheet feeding driving assembly comprises a fixed support, a separation motor and a driving roller wheel support, a driving wheel shaft is arranged on the driving roller wheel support, a driving roller wheel is arranged on the driving wheel shaft, the driving roller wheel is in transmission fit with the sheet feeding driven wheel, a driving spring which enables the driving roller wheel support to rotate towards the direction close to the fixed support is connected between the fixed support and the driving roller wheel support, a separation cam is fixed on an output shaft of the separation motor, and the driving roller wheel support is driven by the separation cam to rotate by taking an output shaft of the sheet feeding motor as a rotation center, so that the driving roller wheel and the sheet feeding driven wheel are separated from transmission contact.
Preferably, the row of sheet feeding rollers are arranged on roller shafts, and the roller shafts are arranged on the sheet feeding transmission seat.
Preferably, the single sheet feeding driven wheel is arranged on a driven wheel pin shaft, the single driven wheel pin shaft is arranged on a sheet feeding driven wheel mounting seat, and all sheet feeding driven wheel mounting seats are hinged to the sheet feeding transmission seat.
Preferably, all the sheet feeding driven wheel mounting seats are arranged on sheet feeding driven wheel mounting seat shafts, and the sheet feeding driven wheel mounting seat shafts are arranged on sheet feeding transmission seats.
Preferably, the sheet feeding driven wheel mounting seat is hinged with the sheet feeding driven wheel mounting seat shaft, and each sheet feeding driven wheel mounting seat is connected with a torsion spring which enables the sheet feeding driven wheel to be clung to the sheet feeding roller.
Preferably, the sheet feeding roller is provided with a wheel groove matched with the material belt, and the sheet feeding driven wheel is meshed with the wheel groove.
Preferably, the front guide wheel and the rear guide wheel are provided with wheel grooves matched with the material belt.
Preferably, the lower thread passing through of the ironing sheet is arranged in front of the needle bar frame, the lower thread passing through of the ironing sheet is positioned above the front guide wheel shaft, and the lower thread passing through of the ironing sheet is provided with an ironing sheet thread passing hole through which a feeding belt passes corresponding to each front guide wheel.
Preferably, the front of the needle bar frame is provided with a middle thread of the ironing sheet, the middle thread of the ironing sheet is arranged above the lower thread of the ironing sheet in parallel, and the upper thread of the ironing sheet and the lower thread of the ironing sheet are correspondingly provided with ironing sheet thread holes.
The invention also provides a sheet ironing machine which comprises the sheet feeding structure capable of preventing the material belt from deviating.
The technical scheme adopted by the invention has the following beneficial effects:
1. the device adopts the matching of a row of sheet feeding driven wheels and a row of sheet feeding rollers, each punching needle rod component correspondingly carries out the matching clamping and conveying of the sheet feeding belt by a pair of sheet feeding driven wheels and sheet feeding rollers, and the distance between two adjacent pairs of sheet feeding driven wheels and sheet feeding rollers can be controlled to be smaller, so that the device has a compact structure, and a plurality of pairs of sheet feeding driven wheels and sheet feeding rollers can be arranged in a limited space, thereby realizing the sheet feeding requirement of a plurality of (color) material belts.
And in addition, the front guide wheel and the rear guide wheel are respectively arranged at the front and the rear of the stamping sheet of the stamping needle to guide the material belt, so that the material belt can be prevented from deviating.
2. A row of sheet feeding rollers are jointly arranged on one roller shaft, so that the assembly is convenient. The single sheet feeding driven wheel is hinged to the sheet feeding driven wheel mounting seat through the driven wheel pin shaft, all sheet feeding driven wheel mounting seats are hinged to the sheet feeding driven wheel mounting seat shaft, and each sheet feeding driven wheel mounting seat is connected with a torsion spring which enables the sheet feeding driven wheel to be clung to the sheet feeding roller, so that each sheet feeding driven wheel can be guaranteed to be clung to the corresponding sheet feeding roller to be matched with the conveying belt.
3. Through the limit of the wheel groove on the sheet feeding roller, the front guide wheel and the rear guide wheel, the material belt can not deviate in the conveying process.
4. The material belt passes through the front guide wheel and then sequentially passes through the middle wire of the ironing sheet and the lower wire of the ironing sheet to be split and guided.
The specific technical scheme and the beneficial effects of the invention are described in detail in the following detailed description with reference to the accompanying drawings.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a side view of a ironing machine head assembly of the present invention;
FIG. 2 is a schematic front view of a head assembly of the sheet iron machine of the present invention;
FIG. 3 is a schematic view (partially omitted) of the back of the head assembly of the ironing machine of the present invention;
FIG. 4 is an exploded view of the ironing pin holder assembly and the film feeding roller assembly;
FIG. 5 is a schematic diagram showing the combination of a punch needle stem and a punch needle;
FIG. 6 is a schematic structural view of a die base;
FIG. 7 is a schematic illustration of the cooperation of a punch pin with a punch pin guide sleeve and a punch die sleeve during a punching process;
FIG. 8 is an exploded view of the nose casing and the film feeding drive assembly;
FIG. 9 is a schematic view of a conveying structure of a material tape;
in the figure:
1-a sheet-ironing needle bar frame device; 1001-material belt; 11-a needle bar frame; 111-upper cross beams; 112-middle cross beam; 113-a bottom cross beam; 12-punching needle bar assembly; 121-punching a needle bar; 122-punching needle; 1221-punch needle; 1222-punch pin standard; 123-bottom dead center; 124-top dead center; 13-punching needle guide sleeve; 14-punching a die sleeve; 15-punching a sheet base; 151-a material belt limit groove; 152-fixing holes; 16-ironing an upper panel; 17-ironing a lower panel; 18-threading in the hot sheet; 19-thread passing under the ironing sheet; 100-front steering wheel shaft; 101-front guide wheels; 102-front steering wheel shaft mounting plate; 114-needle bar guide; 115-needle bar frame lower rail;
2-a sheet feeding driving assembly; 21-a synchronous pulley; 22-driving the wheel axle; 23-a drive roller wheel mount; 231-bearing mounting holes; 24-rolling bearings; 25-disengaging the cam; 26-a drive roller wheel; 27-a fixed support; 28-a sheet feeding motor; 29-disengage motor;
3-a sheet feeding roller assembly; 31-a sheet feeding transmission seat; 32-rear steering wheel shaft; 33-rear guide wheels; 34-roller shaft; 35-mounting a seat shaft of a sheet feeding driven wheel; 36-a sheet feeding roller; 37-a sheet feeding driven wheel mounting seat; 38-mounting a sheet feeding driven wheel; 39-deep groove ball bearings;
4-a handpiece housing; 41-a needle bar drive assembly; 42-color changing rail assembly.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The words such as "upper", "lower", "inner", "outer", "left", "right", etc., indicating an azimuth or a positional relationship are merely based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, fixedly attached, detachably attached, or integrally attached; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Those skilled in the art will appreciate that the features of the examples and embodiments described below can be combined with one another without conflict.
Referring to fig. 1 to 9, the needle bar frame type sheet ironing machine head is improved to realize a sheet ironing function, and comprises a sheet ironing needle bar frame device 1, a sheet feeding driving assembly 2, a sheet feeding roller assembly 3 and a machine head shell 4.
Referring to fig. 4 and 5, the ironing needle bar frame device 1 includes a needle bar frame 11 and a plurality of punch needle bar assemblies 12 disposed along a width direction of the needle bar frame 11. Referring to fig. 5, the needle bar assembly 12 includes a needle bar 121 and a needle 122 mounted at the bottom of the needle bar 121, a material tape 1001 is conveyed under the needle bar frame 11, and a hot sheet (web) on the material tape 1001 conveyed under is punched by the needle 122.
The needle bar frame 11 may refer to the existing common plain embroidery machine, and the needle bar frame 1 is sequentially provided with an upper beam 111, a middle beam 112 and a bottom beam 113 from top to bottom. Needle bar guide holes matched with the needle bars 121 are formed in the upper cross beam 111 and the middle cross beam 112. The needle rod 121 is fixedly connected with a bottom dead center 123 and a top dead center 124.
Moreover, the present invention employs a conventional needle bar drive assembly 41 to drive the punch needle bar assembly 12, the needle bar drive assembly 41 being mounted to the handpiece housing, the needle bar drive assembly 41 including a needle bar drive that acts upon the punch needle bar assembly 12 via a bottom dead center 123. The needle rod 121 is connected with a return spring for realizing upward return of the needle rod assembly 12 after the needle rod driver is separated from the bottom dead center 123, the upper end of the return spring is abutted against the bottom dead center 123, and the lower end of the return spring is abutted against the middle cross beam 112. Other structures and working principles are not described herein, and reference may be made to a conventional driving manner of the needle bar of the embroidery machine. The flat embroidery machine head driving mode of the conventional embroidery machine is more suitable for the design and research of future compound machine types.
In order to guide the punch pin 122 to punch downwards, the bottom cross beam 113 is provided with a punch pin guide sleeve 13 matched with the punch pin 122, the punch pin guide sleeve 13 is provided with a punch pin guide hole, the bottom cross beam 113 is provided with a mounting hole, and the punch pin guide sleeve 13 is mounted in the mounting hole. Of course, it will be appreciated by those skilled in the art that the punch pin guide holes may also be provided directly on the bottom rail.
Referring to fig. 4 and 6, in order to realize the ironing blanking, the machine head further comprises a stamping base 15 arranged below the needle bar frame 11, the material belt 1001 is conveyed between the stamping base 15 and the bottom cross beam 113, and the stamping base 15 is provided with an ironing blanking hole matched with the stamping needle 122. When the ironing sheet is not punched down, the ironing sheet and the material belt are in an integral structure, and when the punching needle 122 passes through the blanking hole of the ironing sheet downwards, the ironing sheet is punched down from the material belt 1001 and is completely separated from the material belt. It will be appreciated by those skilled in the art that the punch base 15 may be of unitary construction with the needle bar frame 11, such as by integrating the punch base structure onto the bottom beam 113.
In order to punch out the ironing sheets with different specifications, the punching needles 122 are detachably arranged at the bottom of the punching needle rod 121 according to the replacing mode of the plain embroidery needles, each punching needle 122 corresponds to the ironing sheet punching sheet with different sizes, and the punching needles 122 can be replaced according to the required ironing sheet specifications. In this embodiment, the bottom of the needle rod 121 is provided with a mounting hole, and the needle 122 is inserted into the mounting hole and locked and fixed by a radial locking screw, so that the needle can be replaced and maintained at a later stage.
After the punching needle 122 is replaced, if the size of the ironing blanking hole is unchanged, blanking can be affected, so that in order to smoothly blanking, the punching sheet base 15 is detachably arranged on the bottom cross beam 113 at the bottom of the needle bar frame, and the ironing sheets with different specifications are punched through the cooperation of the punching needle 122 and the ironing sheet blanking hole by replacing different punching needles 122 and the punching sheet base 15.
As an embodiment, the bottom surface of the bottom beam 113 at the bottom of the needle bar frame is a plane, the upper surface of the punching base 15 is provided with a concave portion and a convex portion formed by the concave portion, and the iron sheet blanking hole is arranged in the concave portion. In this embodiment, the concave portion is provided at a middle position on the rear side of the upper surface of the die pad base 15, and the convex portion is formed in a U-shaped semi-surrounding concave portion.
The punching base 15 is provided with a material belt limiting groove 151 for guiding the material belt 1001 to pass through the punching blanking hole in a centered manner, and the material belt limiting groove 151 is formed in the protruding portion. Here, the material belt limiting grooves 151 are arranged in one-to-one correspondence with the ironing piece blanking holes, and the width center line of the material belt 1001 is completely or basically coincident with the center line of the material belt limiting grooves 151 and the radial center line of the ironing piece blanking holes, so that the radial center line of the ironing piece is completely or basically coincident with the radial center line of the ironing piece. Of course, it will be appreciated by those skilled in the art that as a variant, the above-described structures on the bottom beam 113 and the punch base 15 may be interchanged.
In order to facilitate the disassembly of the punch base 15 for maintenance and replacement, the punch base 15 is provided with a fixing hole 152, the fixing hole 152 is connected with a fastener, and the punch base 15 is fixed on the needle bar frame 11 through the fastener, wherein the fastener can be a screw. Here, the fixing hole 152 is provided in the protruding portion, and the fixing hole 152 may be provided at both the protruding portion positions on the left and right sides of the die pad base 15 and at a portion of the protruding portion between the two limiting grooves 151.
In addition, a punching die sleeve 14 is arranged on the punching base 15, and a stamping blanking hole is formed in the punching die sleeve 14. Of course, those skilled in the art will appreciate that the stamping blanking holes may also be provided directly on the stamping base 15. The concentricity requirement in the operation process of the punching needle is ensured through the double-guide design of the punching needle guide sleeve 13 and the punching sheet die sleeve 14. If the punch pin guide sleeve 13 is not arranged, the punch pin 122 is easy to collide with the punch pin die sleeve 14 in the punching process, the punch pin head is bent and must be stopped for replacement, and the cost of one punch pin is very high, so that the beneficial effect of the double-guide design is shown.
In order to match the stamping blanking holes with the stamping pins 122, when the specifications of the stamping and the stamping pins 122 are changed, the stamping base 15 is preset with specifications, and different specifications correspond to different stamping die sleeves 14 and corresponding stamping blanking holes. Therefore, after the punching needle 122 is replaced, the punching sheet base 15 is directly replaced, and the replaced material belt 1001 also conveniently passes between the punching sheet base 15 and the bottom beam 113.
Referring to the conventional punch pin structure, as shown in fig. 7, the punch pin 122 has a stepped shaft structure, wherein the lowermost portion is a punch pin head 1221, a punch pin standard portion 1222 is provided above the punch pin head, and the size of the punch pin standard portion 1222 is a standard size. In the punching process, the punching needle head 1221 is matched with a stamping blanking hole arranged on the punching die sleeve 14, and the punching needle standard part 1222 is matched with a punching needle guide hole arranged on the punching needle guide sleeve 13. Even if the gauge of the punch pin 122 is changed, the punch pin head 1221 is changed and the diameter of the punch pin gauge 1222 is not changed. Therefore, even if the punch pin 122 is replaced, the guide of the punch pin 122 by the punch pin guide hole provided on the punch pin guide sleeve 13 can be ensured.
The punch pin guide sleeve 13 and the punch die sleeve 14 are installed in the installation hole by interference, and are not replaced normally. In order to realize long-term use, the punch guide sleeve 13 is made of wear-resistant alloy, the punch die sleeve 14 is also made of wear-resistant alloy, and can be processed by adopting the existing mature wear-resistant alloy material. Of course, it is not excluded that the punch guide sleeve 13 and the punch die sleeve 14 can be replaced simultaneously or only the punch guide sleeve 13 and the punch die sleeve 14 can be replaced when the wear is large or the punch size is replaced.
Further, a front guide wheel shaft 100 is disposed in front of the punching base 15, and the front guide wheel shaft 100 is provided with a front guide wheel 101 for guiding the material belt 1001 into the guide groove corresponding to each needle bar. The left and right ends of the front steering wheel shaft 100 are mounted on a front steering wheel shaft mounting plate 102, and the front steering wheel shaft mounting plate 102 can be fixed in front of the bottom of the ironing needle bar frame by adopting screws. Deep groove ball bearings are pressed on the left side and the right side of the front guide wheel 101 and are matched with the front guide wheel shaft 100, so that smooth rotation is realized. A spacer may be provided between adjacent two front guide wheels 101 for separation.
As an accessory of the needle bar frame, referring to fig. 2, the front side of the needle bar frame 11 is provided with an upper ironing plate 16 and a lower ironing plate 17, which form an integral shielding panel, and the front side of the needle bar frame 11 is shielded, so that not only the needle bar is protected, but also accidental injuries are avoided. The front of the needle bar frame 11 is provided with a middle ironing plate passing line 18 and a lower ironing plate passing line 19 which are arranged in parallel up and down, and each of the middle ironing plate passing line 18 and the lower ironing plate passing line 19 is provided with an ironing plate passing hole through which a feeding belt passes corresponding to each needle bar. The material belt passes through the thread 18 in the ironing sheet and the thread 19 below the ironing sheet, and is guided into the space between the needle bar frame bottom cross beam 113 and the punching sheet base 15 through the front guide wheel 101.
In addition, a ironing needle bar guide 114 is installed at the rear of the needle bar frame 11, and the ironing needle bar guide 114 is provided with a guide groove matched with the guide protrusion on the lower dead point 123 of the punching needle bar, so as to restrict the up-and-down operation of the punching needle bar assembly 12.
Referring to fig. 1, 3 and 8, the needle bar frame 11 is horizontally slidably mounted on the machine head housing 4, a color changing guide rail assembly 42 is disposed between the needle bar frame 11 and the machine head housing 4, the left and right sliding of the needle bar frame 1 is guided and restrained, and the color changing box assembly drives the needle bar frame 11 to slide left and right along the color changing guide rail assembly 42 to change colors. The color changing principle is the same as that of the plain embroidery machine, so that the corresponding structure on the embroidery machine can be referred to.
Because the needle bar frame type sheet ironing machine head is adopted, each punching needle bar component can punch out the sheet ironing with different colors, and the number of the punching needle bar components can be increased in a limited space, so that the color of the sheet ironing can be increased. Thus, compared with the existing structure, the structure saves a lot of space. Meanwhile, the super-multicolor ironing sheet is supported, the color is more, and the number of patterns which can be made is more, so that the number of times of replacing a punching needle is reduced, the time-saving effect is achieved, and then the working efficiency is improved from the other aspect. And the punching needle and the punching sheet base can be correspondingly replaced to form different ironing sheet sizes.
Of course, because the needle bar frame type sheet ironing machine head is adopted, a pair of roller conveying belts 1001 are required to be arranged corresponding to each punching needle bar assembly, and meanwhile, because the head distance of the needle bar frame type sheet ironing machine head is smaller, more punching needle bar assemblies are arranged, the parallel arrangement of a plurality of pairs of rollers is required to be realized in a smaller width space. Referring to fig. 3 and 4, the sheet feeding roller assembly 3 includes a sheet feeding transmission seat 31, a row of sheet feeding driven wheels 38 and a row of sheet feeding rollers 36 mounted on the sheet feeding transmission seat 31 and correspondingly arranged, the row of sheet feeding rollers 36 and the row of sheet feeding driven wheels 38 are equal in number and are correspondingly matched with the pair of sheet feeding driven wheels 38 and the sheet feeding rollers 36 in a clinging manner, and the material belt 1001 is clamped and conveyed by the sheet feeding driven wheels 38 and the sheet feeding rollers 36.
Specifically, the sheet feeding driven wheel 38 is mounted on a driven wheel pin shaft, deep groove ball bearings 39 are pressed on two sides of the sheet feeding driven wheel 38, and the driven wheel pin shaft is mounted on the sheet feeding driven wheel mounting seat 37.
In this embodiment, a single sheet feeding driven wheel 38 is mounted on a driven wheel pin, the single driven wheel pin is mounted on a sheet feeding driven wheel mounting seat 37, and all sheet feeding driven wheel mounting seats 37 are hinged to the sheet feeding transmission seat 31. In order to ensure that the sheet feeding driven wheel 38 is tightly attached to the sheet feeding roller 36, each sheet feeding driven wheel mounting seat 37 is connected with a torsion spring which enables the sheet feeding driven wheel 38 to be tightly attached to the sheet feeding roller 36 all the time, so that each sheet feeding driven wheel 38 can be tightly attached to the corresponding sheet feeding roller 36.
As will be appreciated by those skilled in the art, as a conventional modification, the two ends of the pin shaft of the single driven wheel are slidably connected to the sliding grooves on the corresponding driven wheel mounting seat 37 directly or through a sliding block, and the single driven wheel 38 is pulled by a spring to be tightly attached to the corresponding driven wheel 36. At this time, all the sheet feeding driven wheel mounting seats 37 can be fixed with the sheet feeding transmission seat 31. Or, all the sheet feeding driven wheels 38 can also be arranged on the same driven wheel pin shaft through rolling bearings, the two ends of the driven wheel pin shaft are directly connected to the sliding grooves on the sheet feeding transmission seat 31 or are connected with the sliding grooves through sliding blocks in a sliding manner, and all the sheet feeding driven wheels 38 are tightly attached to the corresponding sheet feeding roller wheels 36 through the pulling of springs.
Further, all of the sheet feeding driven wheel mounts 37 are hinged to the same sheet feeding driven wheel mount shaft 35. The sheet feeding driven wheel mount shaft 35 is mounted to the sheet feeding transmission seat 31. The sheet feeding driven wheel mounting seat 37 comprises a left side and a right side parallel sides and a connecting beam connected with the middle parts of the edges of the two sides, the sheet feeding driven wheel mounting seat shaft 35 is connected to the front parts of the left side and the right side parallel sides, and the driven wheel pin shaft is connected to the rear parts of the left side and the right side parallel sides.
As a convenient embodiment, the row of sheet feeding rollers 36 are mounted on the same roller shaft 34, and the roller shaft 34 is mounted on the sheet feeding transmission seat 31. Deep groove ball bearings 39 are pressed on the left side and the right side of the sheet feeding roller 36 and are matched with the roller shaft 34, so that smooth rotation is realized. Spacers may be provided between adjacent two of the sheet feed rollers 36 for separation.
In addition, the sheet feeding transmission seat 31 is further provided with a rear guide wheel shaft 32 in parallel in front of the roller shaft 34, and a row of rear guide wheels 33 are mounted on the rear guide wheel shaft 32. Deep groove ball bearings 39 are pressed on the left and right sides of the rear guide wheel 33 and are matched with the rear guide wheel shaft 32, so that smooth rotation is realized. A spacer may be provided between adjacent two rear guide wheels 33 for separation.
Wherein, the sheet feeding roller 36, the front guide wheel 101 and the rear guide wheel 33 are all provided with wheel grooves matched with the material belt. Moreover, the outer cylindrical surface of the sheet feeding driven wheel 38 is provided with a convex cylinder which is meshed with a wheel groove on the sheet feeding roller 36. The belt 1001 is not deviated during the conveyance by the restriction of the wheel groove.
The sheet feeding roller assembly 3 is mounted on the rear side of the bottom of the needle bar frame 11, and specifically, the sheet feeding transmission seat 31 is fixed on the needle bar frame 11. The sheet feeding transmission seat 31 comprises a front panel and side panels protruding backward from the left and right sides of the front panel, both ends of the sheet feeding driven wheel mounting seat shaft 35, the roller shaft 34 and the rear guide shaft 32 are supported in side panel mounting holes on the left and right sides, and locking screw holes are radially arranged on the side panels corresponding to the fixing holes and are connected with locking screws. The sheet feeding driven wheel mounting seat shaft 35, the roller shaft 34 and the rear guide wheel shaft 32 are correspondingly provided with a tightly fixed plane, and the tightly fixed plane is propped by a locking screw to fix the sheet feeding driven wheel mounting seat shaft, the roller shaft and the rear guide wheel shaft. The left and right sides of the front panel are respectively protruded out of the left and right side panels, and are provided with fixing holes, and are fixed on the needle bar frame 11 by screws.
Wherein the sheet feeding driving assembly 2 is configured to drive the sheet feeding driven wheel 38, i.e. one of the row of sheet feeding driven wheels 38, such that one pair of sheet feeding driven wheels 38 and sheet feeding roller 36 cooperate with the feeding belt 1001. Referring to fig. 8, the film feeding driving assembly 2 includes a fixed support 27 and a driving roller support 23, the driving roller support 23 is provided with a driving wheel shaft 22, the driving wheel shaft 22 is provided with a driving roller 26, and the fixed support 27 is provided with a film feeding motor 28 which drives the driving wheel shaft 22 to rotate through an intermediate transmission mechanism. The sheet feeding motor 28 transmits power through a synchronous belt transmission mechanism, and sequentially drives the driving roller wheel 26, the sheet feeding driven wheel 38 and the sheet feeding roller wheel 36 to rotate, so as to drive the material belt 1001 to convey.
Specifically, the sheet feeding motor 28 drives the driving wheel shaft 22 through a synchronous belt transmission mechanism, the synchronous belt transmission mechanism comprises two synchronous pulleys 21 and synchronous belts arranged on the two synchronous pulleys, an output shaft of the sheet feeding motor 28 is connected with one synchronous pulley, and the other synchronous pulley is arranged on the driving wheel shaft 22. In order to make the driving roller wheel 26 rotate by the other synchronous pulley, the other synchronous pulley is connected with the driving roller wheel 26 through a limiting pin. Wherein, the end face of the connecting end of the driving roller wheel 26 and the synchronous pulley is provided with a convex ring around the driving wheel shaft hole, the end face of the connecting end of the other synchronous pulley and the driving roller wheel 26 is provided with a concave ring around the driving wheel shaft hole, and the convex ring is embedded into the concave ring. The other synchronous pulley and the driving roller wheel 26 are correspondingly and uniformly provided with at least one limit pin hole, for example 2 or 3 limit pin holes, along the circumferential direction, and the limit pin holes are connected with limit pins.
Since there is only one drive roller wheel 26, and it can only drive one of the rows of sheet driven wheels 38. Thus, if color change is required, the driving roller wheel 26 is in fit transmission or out of transmission contact with any one of the sheet feeding driven wheels 38 by moving the driving roller wheel support 23, and then the needle bar frame 11 is driven by the color changing box assembly to slide left and right along the color changing guide rail assembly 42 for color change.
The present embodiment adopts a synchronous belt transmission mode, so that the driving roller wheel support 23 and the fixed component thereon can integrally rotate by taking the output shaft of the sheet feeding motor 28 as a rotation center, and the driving roller wheel 26 and any one of the sheet feeding driven wheels 38 are in fit transmission or separated from transmission contact, thereby providing convenience for color change.
In order to realize that the driving roller wheel support 23 and the fixed part thereon can integrally rotate by taking the output shaft of the sheet feeding motor 28 as a rotation center. The fixed support 27 is provided with a disengaging motor 29, an output shaft of the disengaging motor 29 is fixed with a disengaging cam 25, and when color change is required, the driving roller wheel support 23 is driven by the disengaging cam 25 to rotate by taking an output shaft of the film feeding motor 28 as a rotation center, so that the driving roller wheel 26 and the film feeding driven wheel 38 are separated from transmission contact.
In order to ensure that the driving roller wheel 26 is in fit transmission with any one of the sheet feeding driven wheels 38, a driving spring is connected between the fixed support and the driving roller wheel support and used for rotating the driving roller wheel support so as to enable the driving roller wheel to be in fit transmission with any one of the sheet feeding driven wheels. When the machine is started, the drive roller wheel 26 is in close contact with one of the sheet feed driven wheels 38 due to the force of the drive spring, and the sheet feed motor 28 transmits power to the drive roller wheel 26, thereby cooperatively pulling the web by the sheet feed driven wheel 38 and the sheet feed roller 36.
When color change is needed, the output shaft of the disengaging motor 29 rotates by a certain angle to enable the disengaging cam 25 fixed on the disengaging motor to rotate and cling to the inner wall of the driving roller wheel support 23, the output shaft of the sheet feeding motor 28 is taken as a rotation center to eject the output shaft by a certain distance to enable the sheet feeding driving roller wheel 26 to be separated from the sheet feeding driven wheel 38, and then color change operation is carried out; after the color change is completed, the separation motor 29 is rotated back to the original position under the action of the driving spring.
Specifically, the fixing support 27 includes a fixing plate, two parallel motor mounting plates are perpendicularly connected to the fixing plate, and the film feeding motor 28 and the separating motor 29 are respectively mounted on the motor mounting plates on two sides. The driving roller wheel support 23 comprises a U-shaped part, two groups of bearing mounting holes are formed in two side edges of the U-shaped part, rolling bearings 24 are arranged in the bearing mounting holes, one group of rolling bearings are matched with a driving wheel shaft, and the other group of rolling bearings are matched with an output shaft of a sheet feeding motor. The U-shaped portion is provided with lugs at corners of the open end, and bearing mounting holes 231 for mounting the rolling bearings 24 are provided on the lugs.
The sheet feeding driving assembly 2 is integrally fixed on the inclined plane at the rear side of the bottom of the machine head shell, and particularly, the fixing plate can be connected with the inclined plane at the rear side of the bottom of the machine head shell through screws.
As a variation of the above described film feeding drive assembly 2, it will be appreciated by those skilled in the art that the film feeding motor 28 may also be mounted on the drive roller wheel support 23, and may drive the drive axle 22 via a synchronous belt drive or gear drive, as well as other conventional drive means. Meanwhile, the disengaging motor 29 may be mounted on the fixed support 27, and directly adopts an output shaft or a disengaging cam, or otherwise drives the driving roller wheel support 23 to rotate relative to the fixed support 27. Alternatively, the drive roller wheel carriage 23 may be slidably coupled to the fixed carriage 27 such that the drive roller wheel carriage 23 moves linearly relative to the fixed carriage 27 in a linear drive.
It will be appreciated by those skilled in the art that the sheet feed drive roller wheel 26 and the sheet feed driven wheel 38 may be friction driven in a snug manner as described above, such that the drive contact and the disengagement contact may be readily switched. Of course, the use of a gear mesh transmission, preferably a friction transmission, is not precluded. The gear transmission mode may have some problems, mainly that the sheet feeding driven gear rotates due to vibration of machine operation, so that the sheet feeding driving gear and the sheet feeding driven gear are dislocated and cannot be smoothly meshed in the color changing process.
Referring to fig. 9, the principle of conveyance and punching of the tape 1001 is: the feeding driven wheel 38 and the feeding roller 36 cooperate to draw the material belt 1001, after the material belt 1001 is discharged from the material belt disc, the material belt passes through the middle ironing wire 18 and the lower ironing wire 19 from top to bottom and then is guided to be fed into the material belt limiting groove 151 between the needle bar frame bottom cross beam 113 and the punching base 15 through the front guide wheel 101, and then passes through the rear guide wheel 33 and then passes between the feeding driven wheel 38 and the feeding roller 36. Furthermore, the waste material passes between the sheet feeding driven wheel 38 and the sheet feeding roller 36 without providing a receiving tray, and then falls freely to the ground by gravity, and of course, a waste material collecting box may be provided on the ground to collect the waste material. When the material belt 1001 passes through the position of the corresponding ironing piece blanking hole between the needle bar frame bottom cross beam 113 and the punching piece base 15, the needle bar driving assembly 41 drives the punching needle bar assembly 12 to reciprocate up and down, and the ironing piece with the corresponding specification is punched out through the punching needle 122.
The above-mentioned sheet feeding driving assembly 2 and sheet feeding roller assembly 3 have another advantage over the conventional sheet feeding method in that the sheet feeding driven wheel 38 and sheet feeding roller 36 are easily separated, and the sheet feeding driving roller 26 and sheet feeding driven wheel 38 are easily separated, so that the material tape can be easily fed.
Examples
A sheet ironing machine comprises a needle bar frame type sheet ironing machine head in the first embodiment. The sheet ironing machine can be provided with a plurality of sheet ironing machine heads, and each sheet ironing machine head can be provided with a plurality of sheet ironing specification selections, so that the variety of pattern making is greatly enriched.
It will be appreciated by those skilled in the art that the sheet ironing machine provided by the present invention may include some or all of the structures or any combination of the structures in the first embodiment.
While the invention has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the invention is not limited to the specific embodiments described above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (10)
1. The material area prevents off tracking and send piece structure, is provided with a row of needle bar subassembly that dashes at needle bar frame width direction, dash needle bar subassembly including dashing needle bar and installing the punching pin that dashes needle bar bottom, dash the needle and will be stamped down its characterized in that on the material area that the below was carried:
the back side of the bottom of the needle bar frame is provided with a sheet feeding roller assembly, the sheet feeding roller assembly comprises a sheet feeding transmission seat, a row of sheet feeding rollers and a row of sheet feeding driven wheels, the sheet feeding rollers and the sheet feeding driven wheels are arranged on the sheet feeding transmission seat, and the sheet feeding rollers and the sheet feeding driven wheels are equal in number and correspond to the needle bar assembly one by one, and are matched with a conveying belt;
a front guide wheel shaft is arranged in front of the bottom of the needle bar frame, and a front guide wheel for guiding the material belt to be conveyed backwards is arranged on the front guide wheel shaft corresponding to each needle bar;
a rear guide wheel shaft is arranged at the rear of the bottom of the needle bar frame, a row of rear guide wheels are arranged on the rear guide wheel shaft, and the rear guide wheels and the front guide wheels are matched to guide a material belt to be conveyed between a sheet feeding driven wheel and a sheet feeding roller;
the automatic sheet feeding device is characterized by further comprising a sheet feeding driving assembly used for driving the sheet feeding driven wheel, the sheet feeding driving assembly comprises a fixed support, a separation motor and a driving roller wheel support, a driving wheel shaft is arranged on the driving roller wheel support, a driving roller wheel is arranged on the driving wheel shaft, the driving roller wheel is in transmission fit with the sheet feeding driven wheel, a driving spring which enables the driving roller wheel support to rotate towards the direction close to the fixed support is connected between the fixed support and the driving roller wheel support, a separation cam is fixed on an output shaft of the separation motor, and the driving roller wheel support is driven by the separation cam to rotate by taking an output shaft of the sheet feeding motor as a rotation center, so that the driving roller wheel and the sheet feeding driven wheel are separated from transmission contact.
2. The web deviation preventing sheet feeding structure according to claim 1, wherein: the row of sheet feeding rollers are arranged on roller shafts, and the roller shafts are arranged on sheet feeding transmission seats.
3. The web deviation preventing sheet feeding structure according to claim 2, wherein: the single sheet feeding driven wheel is arranged on a driven wheel pin shaft, the single driven wheel pin shaft is arranged on a sheet feeding driven wheel mounting seat, and all sheet feeding driven wheel mounting seats are hinged to the sheet feeding transmission seat.
4. A web deviation preventing sheet feeding structure according to claim 3, wherein: all the sheet feeding driven wheel mounting seats are arranged on sheet feeding driven wheel mounting seat shafts, and the sheet feeding driven wheel mounting seat shafts are arranged on sheet feeding transmission seats.
5. The web deviation preventing sheet feeding structure according to claim 4, wherein: the sheet feeding driven wheel mounting seats are hinged with the sheet feeding driven wheel mounting seat shaft, and each sheet feeding driven wheel mounting seat is connected with a torsion spring which enables the sheet feeding driven wheel to be clung to the sheet feeding roller.
6. The web deviation preventing sheet feeding structure according to any one of claims 1 to 5, wherein: the sheet feeding roller is provided with a wheel groove matched with the material belt, and the sheet feeding driven wheel is meshed with the wheel groove.
7. The web deviation preventing sheet feeding structure according to claim 6, wherein: the front guide wheel and the rear guide wheel are provided with wheel grooves matched with the material belt.
8. The web deviation preventing sheet feeding structure according to claim 1, wherein: the front of the needle bar frame is provided with a lower ironing plate wire passing hole, the lower ironing plate wire passing hole is positioned above the front guide wheel shaft, and a feeding belt is arranged corresponding to each front guide wheel.
9. The web deviation-preventing sheet feeding structure according to claim 8, wherein: the front of the needle bar frame is provided with a middle thread of the ironing sheet, the middle thread of the ironing sheet is arranged above the lower thread of the ironing sheet in parallel, and the upper thread of the ironing sheet and the lower thread of the ironing sheet are correspondingly provided with ironing sheet thread holes.
10. Sheet ironing machine, its characterized in that: a web deviation preventing sheet feeding structure comprising any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010430534.3A CN111607917B (en) | 2020-05-20 | 2020-05-20 | Deviation-preventing sheet feeding structure for material belt and sheet ironing machine |
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| CN202010430534.3A CN111607917B (en) | 2020-05-20 | 2020-05-20 | Deviation-preventing sheet feeding structure for material belt and sheet ironing machine |
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| CN111607917B true CN111607917B (en) | 2023-08-15 |
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