CN110629421B - Suspension tabouret device of computerized embroidery machine - Google Patents
Suspension tabouret device of computerized embroidery machine Download PDFInfo
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- CN110629421B CN110629421B CN201911075822.5A CN201911075822A CN110629421B CN 110629421 B CN110629421 B CN 110629421B CN 201911075822 A CN201911075822 A CN 201911075822A CN 110629421 B CN110629421 B CN 110629421B
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- guide rail
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- 239000000725 suspension Substances 0.000 title description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 6
- 230000007774 longterm Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
- D05C9/02—Appliances for holding or feeding the base fabric in embroidering machines in machines with vertical needles
- D05C9/04—Work holders, e.g. frames
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
- D05C9/08—Appliances for holding or feeding the base fabric in embroidering machines in machines with horizontal needles
- D05C9/10—Work holders or carriers
- D05C9/14—Suspension or balancing arrangements therefor
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a suspended tabouret device of a computerized embroidery machine, which comprises: the lower surface of the side frame of the frame is provided with a groove in an extending way along the length direction, and the two longer side surfaces of the groove are respectively provided with a protruding part protruding an arc surface towards the center of the groove; the Y-direction driving assembly comprises a Y driving guide rail, a Y driving trolley, a Y transmission assembly and a Y frame connecting assembly, wherein the Y transmission assembly is connected with the Y driving guide rail and used for driving the Y driving trolley to slide along the Y driving guide rail, the Y frame connecting assembly comprises a connecting seat connected to the upper surface of the Y driving trolley and a U-shaped bearing connected to the connecting seat, and the concave part of the peripheral surface of the U-shaped bearing is in butt fit with the arc surface of the protruding part; the X-direction driving assembly comprises an X-direction driving guide rail, an X-direction driving trolley, an X-direction transmission assembly and an X-direction frame connecting assembly which is arranged on the X-direction driving trolley and connected with the frame. The invention has the advantages of convenient disassembly and assembly, no friction with the bedplate, low wear rate, good integral driving performance and good operation reliability.
Description
Technical Field
The invention relates to the technical field of embroidery machines, in particular to a suspension tabouret device of a computerized embroidery machine.
Background
The stability of the embroidery frame of the computerized embroidery machine is a key factor influencing the quality of embroidery products of the embroidery machine, and the embroidery frame of the computerized embroidery machine is precisely controlled, so that the quality of the embroidery products can be greatly improved, the breakage rate of the embroidery machine can be reduced, and the production efficiency can be improved. Currently, existing embroidery machine frames come in a variety of forms: one type of conventional tabouret, which runs on the platen plane with a felt, has the following drawbacks: 1. due to the existence of friction force between the tabouret and the platen plane, the tabouret is unstable to run on the plane, and the mode cannot be completely realized under the condition of higher embroidery quality; 2. the abrasion of the embroidery frame component can be caused by the long-term friction movement of the embroidery frame on a plane, meanwhile, the noise can be gradually increased, the service life of the embroidery frame is reduced, and finally, the high-quality high-density high-efficiency embroidery movement cannot be realized; 3. the motor load is large.
In order to solve the above-mentioned problems, a suspended tabouret, such as a "tabouret suspended frame guide mechanism of an embroidery machine" disclosed in patent document with publication No. CN207775513U, has appeared, comprising a suspended guide mechanism provided on a platen, on which a frame plate is placed, the suspended guide mechanism having a top portion in contact with the bottom portion of the frame plate so as to provide a gap between the frame plate and the platen, the suspended guide mechanism comprising a vehicle body on which the frame plate is pressed and slidably connected with the vehicle body, and the vehicle body being capable of lifting the frame plate in a vertical direction so as to separate the frame plate from the platen. According to the scheme, the frame is lifted up through the bearing of the vehicle body to realize the suspension movement of the frame, the frame has the advantage of small friction resistance between the guide rail and the frame plate in the process of the movement of the embroidery frame, and the defect is that: 1. the bearing and the tabouret and the bearing and the platen plane are in rolling friction, the possible abrasion is most, the bearing and the tabouret are used for a long time, the abrasion of the bearing, the tabouret and the platen plane is serious, and the service life is not long; 2. the suspension guide mechanism is not integrally matched with the frame in a driving manner, so that the tabouret and the bearing cannot be integrally matched due to the problem of vibration of the frame in long-term operation, and the noise is overlarge.
As another example, a U-shaped bearing suspension system for an embroidery machine frame disclosed in patent document CN206655912U, includes a Y forward rail base and a Y backward rail base, a Y forward rail is provided on the Y forward rail base, a Y forward rail slider is mounted on the Y forward rail, a Y forward suspension device is provided on an upper surface of the Y forward rail slider, a first X-direction U-shaped suspension rail is provided on the Y forward suspension device, and a Y moving U-shaped suspension rail is provided on one side of the first X-direction U-shaped suspension rail. According to the U-shaped bearing suspension system for the embroidery machine frame, the first X-direction U-shaped suspension guide rail is connected with the Y-direction forward suspension device, the first X-direction U-shaped suspension guide rail moves along the X direction, the second X-direction U-shaped suspension guide rail moves along the X direction, the Y-direction U-shaped suspension guide rail moves along the Y direction, suspension can be realized, friction with a bedplate working surface is reduced, running precision is improved, cost is reduced, but the result is complex, the problem that the suspension system does not integrally cooperate with the driving of the frame exists, and the surface contact is most in the movement process, so that abrasion is easy to generate.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the computerized embroidery machine suspended embroidery frame device which is convenient to assemble and disassemble, convenient to maintain, free of friction with a bedplate plane, low in abrasion possibility, good in integrity, good in operation reliability and capable of effectively reducing the load of a motor.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a computerized embroidery machine suspended frame device, comprising:
the frame comprises four side frames which are sequentially connected end to form a rectangle, the lower surface of the longer side frame is provided with a groove with a downward opening along the length extending direction, the two longer side surfaces of the groove are respectively provided with a protruding part protruding an arc surface towards the center of the groove, and the length extending direction of the protruding part is consistent with the length extending direction of the longer side surface of the groove;
the Y-direction driving assembly comprises a Y-direction driving guide rail, a Y-direction driving trolley, a Y-direction transmission assembly and a Y-direction frame connecting assembly, wherein the Y-direction driving guide rail is arranged below the frame and perpendicular to the longer side frame, the Y-direction driving trolley is arranged on the Y-direction driving guide rail and can slide along the Y-direction driving guide rail, the Y-direction transmission assembly is connected with the Y-direction driving guide rail and is used for transmitting power so as to drive the Y-direction driving trolley to slide along the length extension direction of the Y-direction driving guide rail, the Y-direction frame connecting assembly is arranged on the Y-direction driving trolley and is connected with the longer side frame, the Y-direction frame connecting assembly comprises a connecting seat connected to the upper surface of the Y-direction driving trolley and a U-shaped bearing horizontally connected to the upper surface of the connecting seat, the concave part of the outer peripheral surface of the U-shaped bearing is in butt fit with the arc surface of the protruding part, and the U-shaped bearing is in butt fit with the arc surface of the longer side frame, and the two protruding parts of the U-direction bearing is in butt fit respectively;
the X-direction driving assembly comprises an X-direction driving guide rail, an X-direction driving trolley, an X-direction transmission assembly and an X-direction frame connecting assembly, wherein the X-direction driving guide rail is arranged below the frame and perpendicular to the shorter side frame, the X-direction driving trolley is arranged on the X-direction driving guide rail and can slide along the X-direction driving guide rail, the X-direction transmission assembly is connected with the X-direction driving guide rail and is used for transmitting power so as to drive the X-direction driving trolley to slide along the length extending direction of the X-direction driving guide rail, and the X-direction frame connecting assembly is arranged on the X-direction driving trolley and is connected with the shorter side frame.
Further, the protruding portion is a cylindrical steel bar, two longer side faces of the groove are both concave inwards to form an arc groove, and the protruding portion is arranged in the arc groove and protrudes an arc face to the center of the groove.
Further, the protruding portion is integrally formed on the longer side face of the groove.
Further, the lower surface of shorter side frame is along its length extending direction extension set up the recess of opening decurrent, two longer side departments of recess all are equipped with to the protruding portion of a arc surface in recess center, the length extending direction of protruding portion with the length extending direction of the longer side of recess is unanimous, X frame coupling assembling is including connect in X drive dolly upper surface's connecting seat with the level connect in the U type bearing of connecting seat upper surface, the outer peripheral face concave part of U type bearing with the protruding arc surface butt assembly of protruding portion, U type bearing is two at least, respectively with the shorter two protruding arc surface butt assembly of protruding portion of side frame department.
Further, the X frame coupling assembling includes Y to vice rail, bearing connecting part and dolly connecting portion, Y to vice rail is on a parallel with the weak point side frame and through follow weak point side frame length extending direction interval setting the bearing connecting part is connected with weak point side frame, Y to vice rail lower surface pass through dolly connecting portion with X drive dolly's upper surface is connected, bearing connecting part include bearing base and horizontal connection in antifriction bearing on the bearing base, Y is to vice rail lower surface along its length extending direction extension have seted up the first spout of opening decurrent, antifriction bearing arranges in the first spout, antifriction bearing's outer peripheral face with two longer side face contacts of first spout.
Further, the number of the rolling bearings is three, the rolling bearings are distributed in an isosceles triangle, the bottom edge of the isosceles triangle is parallel to the Y-direction auxiliary rail, the side surface of the Y-direction auxiliary rail, which faces the shorter side frame, extends along the length extending direction of the Y-direction auxiliary rail to form a second chute with an opening facing the shorter side frame, the two rolling bearings located at the bottom edge of the isosceles triangle are arranged in the first chute, the outer peripheral surfaces of the two rolling bearings are contacted with the longer side surface, which is close to the bottom surface of the second chute, of the first chute, and the outer peripheral surface of the other rolling bearing is contacted with the bottom surface of the second chute.
Further, the device also comprises a Y-shaped forward guide rail assembly which is positioned below the frame, wherein the Y-shaped forward guide rail assembly comprises a Y-shaped forward guide rail which is arranged perpendicular to the longer side frame, a Y-shaped forward guide rail trolley which is arranged on the Y-shaped forward guide rail and can slide along the Y-shaped forward guide rail, and a Y-shaped forward frame connecting assembly which is arranged on the Y-shaped forward guide rail trolley and is connected with the longer side frame; the Y-shaped front frame connecting assembly comprises a connecting seat connected to the upper surface of the Y-shaped front guide rail trolley and a U-shaped bearing horizontally connected to the upper surface of the connecting seat, wherein the concave part of the outer peripheral surface of the U-shaped bearing is in abutting fit with the arc surfaces protruding from the protruding parts, and at least two U-shaped bearings are in abutting fit with the arc surfaces protruding from the two longer protruding parts at the side frames respectively; the Y-shaped forward guide rail trolley and the Y-shaped driving trolley are respectively connected with the two longer side frames of the frame.
Further, the device also comprises an X-forward guide rail assembly which is positioned below the frame, wherein the X-forward guide rail assembly comprises an X-forward guide rail which is arranged perpendicular to the shorter side frame, an X-forward guide rail trolley which is arranged on the X-forward guide rail and can slide along the X-forward guide rail, and an X-forward frame connecting assembly which is arranged on the X-forward guide rail trolley and is connected with the shorter side frame; the X-direction front frame connecting assembly comprises a connecting seat connected to the upper surface of the X-direction front guide rail trolley and a U-shaped bearing horizontally connected to the upper surface of the connecting seat, wherein the concave part of the outer peripheral surface of the U-shaped bearing is in abutting fit with the arc surfaces protruding from the protruding parts, and at least two U-shaped bearings are in abutting fit with the arc surfaces protruding from the two protruding parts at the shorter side frames respectively; the X forward guide rail trolley and the X driving trolley are respectively connected with two shorter side frames of the frame.
Further, the Y-direction driving assembly further comprises an X-direction auxiliary rail set parallel to the longer side frame, the X-direction auxiliary rail set comprises a first X-direction auxiliary rail and a second X-direction auxiliary rail which are respectively arranged at two ends of the longer side frame, and the first X-direction auxiliary rail and the second X-direction auxiliary rail are respectively connected with the longer side frame in a sliding manner in the length extending direction through bearing connecting parts; the first X-direction auxiliary rail and the second X-direction auxiliary rail are both connected with a bearing trolley capable of sliding along the length extension direction of the first X-direction auxiliary rail, and the bearing trolley is connected with the Y-direction driving trolley or the connecting seat.
Further, two ends of the Y driving guide rail and the X driving guide rail are respectively provided with a limit stop block extending along the width direction of the Y driving guide rail and the X driving guide rail.
Further, the central axis of the Y driving guide rail in the length direction is in the same straight line with the central axis of the Y forward guide rail in the length direction.
After the technical scheme is adopted, the invention has the beneficial effects that: the frame can be lifted through the assembly of the Y frame connecting component and the frame and the assembly of the X frame connecting component and the frame, so that the suspension of the frame relative to the plane of the bedplate is realized, the friction between the frame and the bedplate is removed, the motor load is reduced, and the running precision of the frame is improved;
the assembly of the protruding part and the U-shaped bearing realizes multipoint line contact, and compared with the circular surface contact in the prior art, the noise is lower, the abrasion possibility is lower, and the service life is longer;
in addition, the Y frame connecting component and the X frame connecting component are respectively arranged on the Y driving guide rail of the Y driving component and the X driving guide rail of the X driving component, so that the integration with driving is better, the degree of freedom limitation or low-abrasion sliding of the frame in the X stroke and the Y stroke can be well matched at the first time, and in practical application, the stability coefficient is higher, the shaking is less, and the running reliability is better;
when the protruding part is arranged as a cylindrical steel rod, the structural strength, the wear resistance and the flexible adjustment performance are better, so that an installer can adjust the position relationship between the protruding part and the U-shaped bearing according to actual conditions (such as long-time running wear) or directly replace a new cylindrical steel rod, and better sliding fit and freedom degree limitation between the protruding part and the U-shaped bearing are realized; when the protruding part is integrally formed on the longer side surface of the groove, the position of the protruding part is relatively fixed, so that unstable factors for reducing the matching relationship between the protruding part and the U-shaped bearing are fewer, and long-term stable maintenance of the good matching relationship between the protruding part and the U-shaped bearing is facilitated;
the X-frame connecting assembly comprises a Y-direction auxiliary rail, the Y-direction auxiliary rail is matched with the frame through a plurality of bearing connecting parts, and is connected with the X-direction driving trolley through the trolley connecting part, so that the opening of sliding grooves on the frame is reduced, the rigidity of the frame is improved, and the problem that the X-direction driving assembly is inconvenient to install on the frame due to too short frame is solved; the three rolling bearings are distributed in an isosceles triangle, and are in surface contact with two sides of a raised line formed between the first sliding groove and the second sliding groove, so that sliding of the three rolling bearings relative to the Y-direction auxiliary rail in the length direction of the Y-direction auxiliary rail and limitation of freedom degree of the three rolling bearings in the width direction of the Y-direction auxiliary rail are realized, the reliability is good, and the frame can be stably driven to move in the X-stroke direction;
set up Y and lead rail subassembly forward, can cooperate with Y to drive assembly, be in charge of two longer side frames of frame, two longer side frames of lifting frame that can be better steady, can be accurate along the accurate steady removal frame of longer side frame length direction (Y stroke direction) of perpendicular to under driven drive. The X forward guide rail component is matched with the X direction driving component, so that the lifting of two shorter side frames of the frame and the accurate and stable movement of the frame in the X travel direction are realized.
The X-direction auxiliary rail group comprises a first X-direction auxiliary rail and a second X-direction auxiliary rail which are respectively arranged at two ends of the longer side frame and are parallel to the longer side frame, so that the rigidity of the frame is improved, the freedom degree of the frame is limited, the stability of the frame during movement is improved, and the occurrence of shaking is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the accompanying drawings are as follows:
FIG. 1 is a schematic view of a part of a suspension frame device of a computerized embroidery machine according to embodiment 1 of the invention;
FIG. 2 is a sectional view showing the assembly of a Y-direction drive assembly and a frame according to embodiment 1 of the present invention;
FIG. 3 is a sectional view showing the assembly of an X-direction driving assembly and a frame according to embodiment 2 of the present invention;
FIG. 4 is a schematic view of a part of a suspension frame device of a computerized embroidery machine according to embodiment 3 of the invention;
FIG. 5 is a cross-sectional view of a preferred X-direction drive assembly and frame assembly provided in embodiment 3 of the present invention;
FIG. 6 is a cross-sectional view of a Y-front rail assembly and a frame assembly provided in embodiment 4 of the present invention;
FIG. 7 is a cross-sectional view of an assembled X-front rail assembly and frame provided in embodiment 5 of the present invention;
FIG. 8 is a schematic view illustrating an assembly of an X-direction sub rail set and a frame according to an embodiment 6 of the present invention;
fig. 9 is a partial enlarged view of I in fig. 8.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1 and 2, the present embodiment provides a suspension tabouret device of a computerized embroidery machine, which includes:
the frame 1 comprises four side frames which are sequentially connected end to form a rectangle, the lower surface of the longer side frame is provided with a groove 11 with a downward opening in an extending direction along the length of the lower surface, two longer side surfaces of the groove 11 are respectively provided with a protruding part 12 protruding towards the center of the groove 11 by an arc surface, and the extending direction of the length of the protruding part 12 is consistent with the extending direction of the length of the longer side surface of the groove 11; wherein the longer side frame, namely the side frame with relatively longer length of the four side frames of the frame 1, according to the prior art, the length of the side frame extending along the X-travel direction of the frame 1 is longer than the length of the side frame extending along the Y-travel direction;
the Y-direction driving assembly 2 comprises a Y-direction driving guide rail 21 which is arranged below the frame 1 and perpendicular to the longer side frame, a Y-direction driving trolley 22 which is arranged on the Y-direction driving guide rail 21 and can slide along the Y-direction driving guide rail 21, a Y-direction driving assembly 23 which is connected with the Y-direction driving guide rail 21 and is used for transmitting power so as to drive the Y-direction driving trolley 22 to slide along the length extending direction of the Y-direction driving guide rail 21, and a Y-direction frame connecting assembly 24 which is arranged on the Y-direction driving trolley 22 and is connected with the longer side frame, wherein the Y-direction driving assembly 23 can be a power mechanism consisting of a conveying belt, a tensioning wheel, a driving wheel and a driving motor in the prior art; the Y frame connection assembly 24 includes a connection base 241 connected to the upper surface of the Y driving trolley 22 and a U-shaped bearing 242 horizontally connected to the upper surface of the connection base 241, the recess of the outer peripheral surface of the U-shaped bearing 242 is in abutting fit with the arc surface protruding from the protruding portion 12, during the relative movement, rolling friction is generated between the U-shaped bearing 242 and the protruding portion 12, at least two U-shaped bearings 242 are respectively in abutting fit with the arc surfaces protruding from the two longer protruding portions 12 at the side frames, and the degree of freedom of movement of the U-shaped bearing 242 in the length direction of the Y driving rail 21 is limited by the protruding portion 12, so that when the Y driving trolley 22 slides along the Y driving rail 21, the Y frame connection assembly 24 is driven by the Y driving trolley 22 to generate an pushing force for driving the frame 1 to move along the length direction (Y stroke direction) of the Y driving rail 21;
the X-direction driving assembly 3 comprises an X-direction driving guide rail, an X-direction driving trolley, an X-direction transmission assembly and an X-direction frame connecting assembly 34, wherein the X-direction driving guide rail is arranged below the frame 1 and perpendicular to the shorter side frame, the X-direction driving trolley is arranged on the X-direction driving guide rail and can slide along the X-direction driving guide rail, the X-direction transmission assembly is connected with the X-direction driving guide rail and is used for transmitting power so as to drive the X-direction driving trolley to slide along the length extending direction of the X-direction driving guide rail, and the X-direction frame connecting assembly 34 is arranged on the X-direction driving trolley and is connected with the shorter side frame. The function of the X-frame connection assembly 34 is the same as that of the Y-frame connection assembly 24, on the one hand for raising the frame 1 and on the other hand for facilitating the movement of the frame, the structural design of which can be the same as that of the Y-frame connection assembly 24, and reference can be made to the prior art design.
Preferably, the plurality of X-direction driving components 3 and the plurality of Y-direction driving components 2 are arranged on the frame through mounting components, and the plurality of X-direction driving components 3 and the plurality of Y-direction driving components 2 are respectively and symmetrically arranged at two ends of corresponding side frames so as to stably and symmetrically drive the frame 1, in addition, the frame 1 is synchronously lifted by the X-direction driving trolley, the X-direction frame connecting components 34, the Y-direction driving trolley 22 and the Y-direction frame connecting components 24, can be suspended on the plane of the bedplate, has small friction resistance, can reduce the abrasion rate, and is beneficial to the stable movement of the frame 1;
operation principle: when the X-drive trolley is driven to slide along the X-drive guide rail, the X-frame connecting assembly 34 is driven by the X-drive trolley to generate a driving force for driving the frame 1 to move along the length direction of the X-drive guide rail, and because the U-shaped bearing 242 can slide relatively in the length extending direction of the protruding portion 12 (the direction is consistent with the length direction of the X-drive guide rail), the condition that the frame 1 moves along the length direction of the X-drive guide rail is satisfied, the U-shaped bearing 242 is in multi-point line contact with the protruding portion 12, the abrasion is small, the noise is low, the service life of the longer side frame and Y-frame connecting assembly 24 can be prolonged, in addition, the Y-drive trolley 22 and the Y-frame connecting assembly 24 are directly connected, the X-drive trolley and the X-frame connecting assembly 34 are directly connected, that is, an integral fit is formed between the Y-frame connecting assembly 24 and the driving part of the frame 1, the X-frame connecting assembly 34 and the driving part of the frame 1, the driving point and the moving point are in the same place, the synchronism during driving is better, the movement is more stable, and the shake is small.
Preferably, the protruding portion 12 is a cylindrical steel rod, two longer sides of the groove 11 are both concave inwards to form an arc groove, and the protruding portion 12 is arranged in the arc groove and protrudes an arc surface towards the center of the groove 11. The protruding part 12 is a cylindrical steel rod and is detachable from the groove 11, and the cylindrical steel rod enables the structural strength and the wear resistance to be better; the detachable structure is favorable for flexible adjustment of the position relationship among the U-shaped bearing 242, the protruding part 12 and the groove 11, and only a new cylindrical steel rod can be replaced when the position relationship cannot be adjusted, so that the problem that the matching relationship is poor and the position relationship cannot be changed due to long-term operation and abrasion is avoided, and the cost improvement caused by part replacement or more parts replacement is avoided.
Or alternatively, the protruding portion 12 is integrally formed on the longer side of the groove 11. When the protruding part is integrally formed on the longer side surface of the groove 11, the position of the protruding part 12 is relatively fixed, so that unstable factors of poor matching relation between the protruding part 12 and the U-shaped bearing 242 can be reduced, and the good matching relation between the protruding part 12 and the U-shaped bearing 242 can be stably maintained for a long time as the structural strength and the wear resistance of the protruding part 12 are good.
Example 2
As shown in fig. 3, the difference between this embodiment and the previous embodiment is that the lower surface of the shorter side frame in this embodiment is extended along the length extending direction thereof to form a groove 11 with a downward opening, two longer sides of the groove 11 are each provided with a protrusion 12 protruding toward the center of the groove 11, the length extending direction of the protrusion 12 is consistent with the length extending direction of the longer side of the groove 11, the X frame connecting assembly 34 includes a connecting seat 241 connected to the upper surface of the X driving trolley and a U-shaped bearing 242 horizontally connected to the upper surface of the connecting seat 241, the concave portion of the outer peripheral surface of the U-shaped bearing 242 is in abutting fit with the arc surfaces protruding from the protrusions 12, and at least two U-shaped bearings 242 are respectively in abutting fit with the arc surfaces protruding from the two shorter cambered protrusions 12 at the side frame.
That is, in this embodiment, the structure of the X-direction driving component 3 is the same as that of the Y-direction driving component 2, and the matching relationship between the X-direction driving component 3 and the side frame with the shorter frame 1 is the same as that between the Y-direction driving component 2 and the longer side frame with the longer frame 1, which is beneficial to the unification of driving and the stable driving of the frame 1, and the maintenance is simpler.
Example 3
As shown in fig. 4 and 5, the difference between this embodiment and embodiment 1 is that in this embodiment, the X-frame connecting assembly 34 includes a Y-direction auxiliary rail 341, a plurality of bearing connecting members 342, and a trolley connecting portion 343, the Y-direction auxiliary rail 341 is parallel to the shorter side frame and is connected to the shorter side frame through the bearing connecting members 342 disposed at intervals along the length extension direction of the shorter side frame, the lower surface of the Y-direction auxiliary rail 341 is connected to the upper surface of the X-driving trolley through the trolley connecting portion 343, specifically, the lower surface of the Y-direction auxiliary rail 341 on the side frame side that is farther from the shorter side frame is connected to the upper surface of the X-driving trolley through the trolley connecting portion 343, the bearing connecting members 342 include a bearing base 3421 and a rolling bearing 3422 that is horizontally connected to the bearing base 3421, the bearing base 343421 is connected to the shorter side frame through screws, the lower surface of the Y-direction auxiliary rail 341 is provided with a first opening along the length extension direction thereof, and is capable of moving closer to the first side surface 3411 than the first side 3411, and the second side 3411 is capable of sliding along the length direction of sliding chute 341, and the first side 3411 is capable of sliding along the length of sliding along the first side surface 3421, and the second side 341.
The Y-direction auxiliary rail 341 is beneficial to reducing the opening of the sliding groove on the frame 1, improving the rigidity of the frame and avoiding the problem that the X-direction driving assembly is inconvenient to install on the frame due to the too short frame 1.
Further, the number of the rolling bearings 3422 is three, the rolling bearings 3422 are distributed in an isosceles triangle, the bottom side of the isosceles triangle is parallel to the Y-direction auxiliary rail 341, the side surface of the Y-direction auxiliary rail 341 facing the shorter side frame extends along the length extending direction of the Y-direction auxiliary rail 341 to form a second sliding groove 3412 with an opening facing the shorter side frame, two rolling bearings 3422 positioned at the bottom side of the isosceles triangle are disposed in the first sliding groove 3411, and the outer peripheral surfaces of the two rolling bearings 3422 are in contact with the longer side surface of the first sliding groove 3411, which is close to the bottom surface of the second sliding groove 3412, and the outer peripheral surface of the other rolling bearing 3422 is in surface contact with the bottom surface of the second sliding groove 3412.
The three rolling bearings 3422 are distributed in an isosceles triangle, and the three rolling bearings 3422 are in surface contact with two sides of a raised line formed between the first sliding groove 3411 and the second sliding groove 3412, so that sliding of the three rolling bearings 3422 relative to the Y-direction auxiliary rail 341 in the length direction of the Y-direction auxiliary rail 341 and limitation of freedom of the three rolling bearings in the width direction of the Y-direction auxiliary rail 341 are realized, three-point contact reliability is good, and the stable driving frame 1 can move in the X-stroke direction, and when the Y-direction driving assembly 2 drives the frame 1 to move in the Y-stroke direction, the Y-direction auxiliary rail 341 can also ensure that the frame 1 can move in the Y-stroke direction through position change between the rolling bearings 3422 and the first sliding groove 3411 and the second sliding groove 3412 under the condition that the relative position between the Y-direction auxiliary rail 341 and the X-direction driving assembly 3 is unchanged.
Example 4
As shown in fig. 6, this embodiment is different from embodiment 1 in that it further includes a Y-forward rail assembly 4 located below the frame 1, the Y-forward rail assembly 4 including a Y-forward rail 41 provided perpendicular to the longer side frame, a Y-forward rail cart 42 provided on the Y-forward rail 41 so as to be slidable along the Y-forward rail 41, and a Y-forward frame connecting assembly 43 provided on the Y-forward rail cart 42 so as to be connected to the longer side frame; the Y-front frame connection assembly 43 includes a connection base 241 connected to the upper surface of the Y-front rail trolley 42 and a U-shaped bearing 242 horizontally connected to the upper surface of the connection base 241, the recess of the outer peripheral surface of the U-shaped bearing 242 is in abutting fit with the arc surface protruding from the protruding portion 12 at the longer side frame, and at least two U-shaped bearings 242 are in abutting fit with the arc surfaces protruding from the two protruding portions 12 at the longer side frame respectively; the Y forward rail trolley 42 and the Y drive trolley 22 are connected to the two longer side frames of the frame 1, respectively. The lifting of the two longer side rims is facilitated together with the Y-drive assembly 2 and ensures a smooth and accurate movement of the frame 1 along the Y-drive rail 21 and the Y-forward rail 41.
Preferably, the central axis of the Y driving rail 21 in the longitudinal direction is aligned with the central axis of the Y forward rail 41 in the longitudinal direction. If only the Y drive rail 21 is provided in the same longitudinal direction as the Y forward rail 41, the central axes of the two longitudinal directions are not necessarily parallel to each other.
Example 5
As shown in fig. 7, this embodiment is different from embodiment 2 in that it further includes an X-forward rail assembly 5 located below the frame 1, the X-forward rail assembly 5 including an X-forward rail 51 provided perpendicular to the shorter side frame, an X-forward rail carriage 52 provided on the X-forward rail 51 so as to be slidable along the X-forward rail 51, and the X-forward frame connecting assembly 53 provided on the X-forward rail carriage 52 so as to be connected to the shorter side frame; the X-direction front frame connecting assembly 53 comprises a connecting seat 241 connected to the upper surface of the X-direction front rail trolley 52 and a U-shaped bearing 242 horizontally connected to the upper surface of the connecting seat 241, wherein the concave part of the outer peripheral surface of the U-shaped bearing 242 is in abutting fit with the protruding arc surfaces of the protruding parts 12, and at least two U-shaped bearings 242 are respectively in abutting fit with the protruding arc surfaces of the two shorter side frames; the X-direction front rail trolley 52 and the X-drive trolley are connected to the two shorter side rims of the frame 1, respectively. The lifting of the two shorter side rims is facilitated in connection with the X-drive assembly 3 and the smooth and accurate movement of the frame 1 along the X-drive rail and the X-forward rail 51 is ensured.
Example 6
As shown in fig. 8 and 9, the difference between this embodiment and the previous embodiment is that the Y-direction driving assembly 2 further includes an X-direction sub-rail set disposed parallel to the longer side frame, the X-direction sub-rail set includes a first X-direction sub-rail 251 and a second X-direction sub-rail 252 disposed at two ends of the longer side frame, and the first X-direction sub-rail 251 and the second X-direction sub-rail 252 are slidably connected with the longer side frame in the length extension direction thereof through bearing connection members, respectively;
the self-construction of the bearing connection member and the manner of assembling it between the first X-direction sub rail 251 and the longer side frame or between the second X-direction sub rail 252 and the longer side frame can be referred to as the self-construction of the bearing connection member 342 and the manner of assembling it between the shorter side frame and the Y-direction sub rail 341 described in embodiment 3, and will not be repeated here;
the first X-direction auxiliary rail 251 and the second X-direction auxiliary rail 252 are both connected with a bearing trolley 253 capable of sliding along the length extension direction of the bearing trolley 253, the structure of the bearing trolley 253 can be the structure of the Y-frame connecting assembly 24 described in the reference embodiment 1, the assembly mode of the bearing trolley 253 and the first X-direction auxiliary rail 251 or the second X-direction auxiliary rail 252 can also be the assembly mode of the Y-frame connecting assembly 24 and the frame 1, so that the wear rate and the noise are reduced, in addition, the bearing trolley 253 can be detachably connected with the Y-driving trolley 22, can be connected with the connecting seat 241, and can be detachably connected with the connecting seat 241 or integrally formed;
for example, the bearing trolley 253 also comprises a connecting seat and a U-shaped bearing horizontally connected to the upper surface of the connecting seat, so that the connecting seat of the bearing trolley 253 can be integrally connected with the connecting seat 241 of the Y-frame connecting assembly 24, and when the Y-drive trolley 22 runs along the length direction (Y-stroke direction) of the Y-drive guide rail 21, the first X-direction auxiliary rail 251 and the second X-direction auxiliary rail 252 can run along the Y-stroke direction under the free limitation of the U-shaped bearing of the bearing trolley 253; when the X-drive trolley runs along the length direction (X-stroke direction) of the X-drive guide rail, the first X-direction auxiliary rail 251 and the second X-direction auxiliary rail 252 are stationary, the frame 1 moves, and can stably move along the length direction of the X-drive guide rail, the first X-direction auxiliary rail 251 and the second X-direction auxiliary rail 252, so that a multipoint stable guiding effect can be formed, the stability of the movement of the frame 1 is improved, and especially the stability of the frame 1 when the frame 1 runs along the Y-stroke direction and the X-stroke direction at the same time is fully improved.
In summary, in the above embodiment, it is preferable that two ends of the Y driving rail 21 and the X driving rail are respectively provided with a limit stop extending along the width direction of the Y driving rail 21 and the X driving rail, and the limit stop is used for limiting the driving range of the trolley on the Y driving rail 21 and the X driving rail, avoiding the separation of the trolley from the rail, resulting in driving failure and reducing economic loss caused by shutdown maintenance. Similarly, both ends of the Y-forward rail 41 and the X-forward rail 51 are also provided with a limit stop extending in the width direction thereof, respectively, for limiting the traveling ranges of the Y-forward rail car 42 and the X-forward rail car 52.
Preferably, the U-shaped bearings 242 in the Y-frame connecting assembly 24 are divided into two groups, namely a first U-shaped bearing group and a second U-shaped bearing group, each group comprises at least one U-shaped bearing 242, and when the number of the U-shaped bearings 242 in each group is more than 2, the U-shaped bearings 242 in the group are distributed at intervals along the direction perpendicular to the length extending direction of the Y-driving guide rail 21; the U-shaped bearings 242 of one group are in one-to-one correspondence with the U-shaped bearings 242 of the other group and are oppositely arranged at intervals along the length extension direction of the Y-drive guide rail 21, and the outer peripheral surfaces of the two groups of U-shaped bearings 242 are respectively used for being in abutting fit with the arc surfaces protruding by the two protruding parts 12 at the longer side frames to form one-point or more multi-point line contact rolling fit;
in addition, preferably, two groups of U-shaped bearings 242 or one group of U-shaped bearings 242 or any several U-shaped bearings 242 in two groups are connected to the connecting seat 241 through eccentric shafts, the U-shaped bearings 242 and the eccentric shafts are fixedly connected and can be welded or assembled fixedly (such as screw connection), the eccentric shafts are rotatably arranged on the connecting seat 241, and the rotating eccentric shafts can change the interval distance between the U-shaped bearings 242 and the opposite U-shaped bearings 242 in the length extending direction of the Y driving guide rail 21, so that the adjustable assembly with the side frame of the frame 1 is facilitated, the adaptation compatibility is improved, the installation progress is accelerated, and the problems of inconvenient installation and improper matching caused by machining errors are solved;
the eccentric shaft is provided with a fastener for connecting and fixing with the connecting seat 241, so that the rotation of the eccentric shaft is limited, the spacing distance between the U-shaped bearing 242 and the opposite U-shaped bearing 242 in the length extending direction of the Y-drive guide rail 21 is kept inconvenient, and the Y-frame connecting assembly 24 is locked and assembled with the side frame of the frame 1, so that synchronous driving of the frame 1 along the length extending direction of the Y-drive guide rail 21 and moving guiding along the length extending direction perpendicular to the Y-drive guide rail 21 are realized.
Further, the eccentric shaft sequentially comprises an upper shaft, a bearing round table, a lower shaft and a fixed wheel from top to bottom, the four split detachable connection is favorable for low-cost replacement when individual components are damaged, the integrated forming is realized, the height standardization of the size and the position relation of each part is maintained, the upper shaft is used for the U-shaped bearing 242 to penetrate, the bearing round table is used for bearing the bottom of the U-shaped bearing 242, only the bottom corresponding to the inner ring or the inner ring and the balls of the U-shaped bearing 242 is required to be borne, the lower shaft is used for being in running fit with the connecting seat 241, the fixed wheel is used for being fastened with the connecting seat 241 through a fastener, the rotatable and non-rotatable adjustment of the eccentric shaft is realized, the upper shaft is eccentrically arranged with the bearing round table, the lower shaft is eccentrically arranged with one group of the fixed wheel, the other two groups are coaxially arranged, the lower shaft is rotatably arranged on the connecting seat 241 in a penetrating way, and the eccentric shaft is fixed with the connecting seat 241 through a fastening screw arranged on the fixed wheel.
Further, it is preferable that the bearing round table and the lower shaft are eccentrically disposed, the upper shaft and the bearing round table, the lower shaft and the fixed wheel are coaxially disposed, the upper shaft, the bearing round table and the lower shaft are integrally formed, the upper shaft is used for mounting and fixing the U-shaped bearing 242, an external thread is disposed on the outer surface of the lower shaft, the fixed wheel is provided with an internal thread hole in fit connection with the external thread, a containing groove for the fixed wheel to be sufficiently disposed is formed on the lower surface of the connecting seat 241, the lower shaft passes through the connecting seat 241 and is in threaded connection with the fixed wheel located in the containing groove, the fixed wheel is fixed with the containing groove through a fastening screw, the bottom of the fastening screw is abutted to the bottom of the containing groove, the bottom structure of the containing groove is preferably reinforced, when the distance between two opposite U-shaped bearings 242 needs to be adjusted, the fastening screw is loosened to rotate the fixed wheel, a groove is preferably formed on the lower surface of the lower shaft for facilitating rotation of the eccentric shaft, the screw is provided for operation of the fastening screw, and after the distance is adjusted, the flat head screw is fastened again, and the frame 24 and the frame assembly is completed.
In summary, the disassembly and replacement of the connecting seat 241 and the eccentric shaft are facilitated, the adjustment convenience of the eccentric shaft and the maintainability of the locked state are increased, the long-term stability of the connection relationship is facilitated, and an important contribution is made to improving the stable movement of the frame 1.
The X-frame connector assembly 34 is provided with reference to the Y-frame connector assembly 24 described above.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A computerized embroidery machine suspended frame device, comprising:
the frame comprises four side frames which are sequentially connected end to form a rectangle, the lower surface of the longer side frame is provided with a groove with a downward opening along the length extending direction, the two longer side surfaces of the groove are respectively provided with a protruding part protruding an arc surface towards the center of the groove, and the length extending direction of the protruding part is consistent with the length extending direction of the longer side surface of the groove;
the Y-direction driving assembly comprises a Y-direction driving guide rail, a Y-direction driving trolley, a Y-direction transmission assembly and a Y-direction frame connecting assembly, wherein the Y-direction driving guide rail is arranged below the frame and perpendicular to the longer side frame, the Y-direction driving trolley is arranged on the Y-direction driving guide rail and can slide along the Y-direction driving guide rail, the Y-direction transmission assembly is connected with the Y-direction driving guide rail and is used for transmitting power so as to drive the Y-direction driving trolley to slide along the length extension direction of the Y-direction driving guide rail, the Y-direction frame connecting assembly is arranged on the Y-direction driving trolley and is connected with the longer side frame, the Y-direction frame connecting assembly comprises a connecting seat connected to the upper surface of the Y-direction driving trolley and a U-shaped bearing horizontally connected to the upper surface of the connecting seat, the concave part of the outer peripheral surface of the U-shaped bearing is in butt fit with the arc surface of the protruding part, and the U-shaped bearing is in butt fit with the arc surface of the longer side frame, and the two protruding parts of the U-direction bearing is in butt fit respectively;
the X-direction driving assembly comprises an X-direction driving guide rail, an X-direction driving trolley, an X-direction transmission assembly and an X-direction frame connecting assembly, wherein the X-direction driving guide rail is arranged below the frame and perpendicular to the shorter side frame, the X-direction driving trolley is arranged on the X-direction driving guide rail and can slide along the X-direction driving guide rail, the X-direction transmission assembly is connected with the X-direction driving guide rail and is used for transmitting power so as to drive the X-direction driving trolley to slide along the length extending direction of the X-direction driving guide rail, and the X-direction frame connecting assembly is arranged on the X-direction driving trolley and is connected with the shorter side frame;
the X frame connecting assembly comprises a Y-direction auxiliary rail, bearing connecting parts and a trolley connecting part, wherein the Y-direction auxiliary rail is parallel to the shorter side frames and is connected with the shorter side frames through the bearing connecting parts which are arranged at intervals along the length extending direction of the shorter side frames, the lower surface of the Y-direction auxiliary rail is connected with the upper surface of the X driving trolley through the trolley connecting part, the bearing connecting parts comprise bearing bases and rolling bearings which are horizontally connected to the bearing bases, the lower surface of the Y-direction auxiliary rail is provided with first sliding grooves with downward openings along the length extending direction of the Y-direction auxiliary rail, the rolling bearings are arranged in the first sliding grooves, and the outer peripheral surfaces of the rolling bearings are in contact with two longer side surfaces of the first sliding grooves;
the three rolling bearings are distributed in an isosceles triangle, the bottom edges of the isosceles triangles are parallel to the Y-direction auxiliary rail, the side faces of the side frames, which face the shorter side rails, of the Y-direction auxiliary rail extend along the length extending direction of the Y-direction auxiliary rail, second sliding grooves with openings facing the shorter side frames are formed in an extending mode, two rolling bearings located at the bottom edges of the isosceles triangles are arranged in the first sliding grooves, the outer peripheral surfaces of the two rolling bearings are in surface contact with the longer side faces, close to the bottom surfaces of the second sliding grooves, of the first sliding grooves, and the outer peripheral surfaces of the other rolling bearings are in surface contact with the bottom surfaces of the second sliding grooves.
2. The suspended frame device of a computerized embroidery machine according to claim 1, wherein the protruding portion is a cylindrical steel bar, two longer sides of the groove are both concave inward to form an arc-shaped groove, and the protruding portion is disposed in the arc-shaped groove and protrudes an arc surface toward the center of the groove.
3. The computerized embroidery machine suspended frame apparatus of claim 1, further comprising a Y-forward rail assembly located below the frame, the Y-forward rail assembly comprising a Y-forward rail disposed perpendicular to the longer side frame, a Y-forward rail cart disposed on the Y-forward rail and slidable along the Y-forward rail, and a Y-forward frame connection assembly disposed on the Y-forward rail cart and connected to the longer side frame; the Y-shaped front frame connecting assembly comprises a connecting seat connected to the upper surface of the Y-shaped front guide rail trolley and a U-shaped bearing horizontally connected to the upper surface of the connecting seat, wherein the concave part of the outer peripheral surface of the U-shaped bearing is in abutting fit with the arc surfaces protruding from the protruding parts, and at least two U-shaped bearings are in abutting fit with the arc surfaces protruding from the two longer protruding parts at the side frames respectively; the Y-shaped forward guide rail trolley and the Y-shaped driving trolley are respectively connected with the two longer side frames of the frame.
4. The computerized embroidery machine suspended frame device according to claim 1, wherein the Y-direction driving assembly further comprises an X-direction sub-rail set arranged parallel to the longer side frame, the X-direction sub-rail set comprises a first X-direction sub-rail and a second X-direction sub-rail respectively arranged at two ends of the longer side frame, and the first X-direction sub-rail and the second X-direction sub-rail are respectively slidably connected with the longer side frame in the length extension direction thereof through bearing connection parts; the first X-direction auxiliary rail and the second X-direction auxiliary rail are both connected with a bearing trolley capable of sliding along the length extension direction of the first X-direction auxiliary rail, and the bearing trolley is connected with the Y-direction driving trolley or the connecting seat.
5. The floating frame device of a computerized embroidery machine according to claim 1, wherein both ends of the Y driving rail and the X driving rail are respectively provided with a limit stop extending in the width direction of the Y driving rail and the X driving rail.
6. A computerized embroidery machine suspended frame device according to claim 3, wherein the central axis of the Y-drive rail in the longitudinal direction is collinear with the central axis of the Y-forward rail in the longitudinal direction.
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| CN201911075822.5A CN110629421B (en) | 2019-11-06 | 2019-11-06 | Suspension tabouret device of computerized embroidery machine |
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| CN201911075822.5A CN110629421B (en) | 2019-11-06 | 2019-11-06 | Suspension tabouret device of computerized embroidery machine |
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| CN110629421B true CN110629421B (en) | 2024-03-22 |
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