CN212834409U

CN212834409U - Portal frame subassembly and quilter

Info

Publication number: CN212834409U
Application number: CN202021379182.5U
Authority: CN
Inventors: 张章生
Original assignee: Sichuan Kiase Sewing Machine Co ltd
Current assignee: Sichuan Kiase Sewing Machine Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-03-30
Anticipated expiration: 2030-07-14

Abstract

The utility model relates to a gantry assembly and a quilter, wherein the gantry assembly comprises a gantry and a guide rail for guiding an upper machine head or a lower machine head, and the guide rail is transversely fixed on the gantry in a bolt connection manner; the portal frame comprises a first cross beam used for installing an upper machine head, a second cross beam used for installing a lower machine head is arranged below the first cross beam, the guide rails are respectively fixed on the first cross beam and the second cross beam, and the guide rails are parallel to each other; the utility model provides a gantry frame subassembly, simple structure, compactness set up rationally, adopt bolted connection's mode fixed guide, do not have welding thermal stress, do not have the welding deformation problem yet, can effectively solve the deformation problem that the guide rail exists in installation and use, be favorable to guaranteeing and improve the sewing precision of quilter, be particularly useful for the great occasion of horizontal sewing width, like large-scale quilter etc..

Description

Portal frame subassembly and quilter

Technical Field

The utility model relates to a textile technology field, concretely relates to portal frame subassembly and quilter.

Background

The quilting machine (also called as quilting machine) is a textile machine for sewing linear patterns on mattresses, bedspreads, quilts and the like, has the characteristics of strong seam thickness capability, high quilting pattern complexity, strong independent pattern editing capability and the like, and is widely applied in the textile industry.

The existing quilting machine generally comprises a frame for supporting and a portal frame (or called as a beam or a saddle frame) arranged along the transverse direction of the frame, wherein the portal frame is used for arranging a machine head of the quilting machine, the machine head comprises an upper machine head and a lower machine head (or called as a base) matched with the upper machine head, the upper machine head and the lower machine head are respectively movably mounted on the portal frame and are guided by a guide rail arranged on the portal frame, so that the upper machine head and the lower machine head can transversely move (namely the length direction of the portal frame) synchronously along the portal frame, and therefore, a fabric can be sewn according to preset stitches.

In order to meet the sewing requirement of large-size textiles, the existing quilting machines are developing in a large-scale direction, for example, the transverse sewing size of some large-size quilting machines can exceed 3 meters, however, the guide rail in the existing quilting machines is usually fixed to the portal frame in a welding manner, the length of the guide rail can be greatly increased along with the increase of the size parameters of the quilting machines, for the long guide rail, not only the guide rail is easy to deform during the welding process, but also in the later use process, because the portal frame and the guide rail are usually made of the same material (the existing portal frame and the guide rail are usually made of steel materials), residual thermal stress is usually existed in the welding process, the problem of thermal expansion and cold contraction can not be effectively solved, the guide rail deformation can also be caused, the straightness of the guide rail can not be ensured, the guide rail is a precise transmission component, and the sewing precision of the quilt, a solution is needed.

SUMMERY OF THE UTILITY MODEL

For improving the not enough that exists among the prior art, the utility model provides a portal frame subassembly adopts bolted connection's mode fixed guide, can effectively solve the deformation problem that the guide rail exists in installation and use, is favorable to guaranteeing and improves quilter's sewing precision.

The utility model adopts the technical proposal that:

the utility model discloses the problem that there is the deformation is fixed to the first aspect will be solved the guide rail and adopt welded mode, provides a portal frame subassembly, include the portal frame and be used for the guide rail for last aircraft nose and/or aircraft nose direction down, the guide rail adopts bolted connection's mode transversely to be fixed in the portal frame. In the portal frame assembly provided by the scheme, the guide rail is transversely fixed on the portal frame in a bolt connection mode, so that the guide rail is convenient to mount and dismount, the guide rail is favorable for simplifying the mounting of the guide rail, compared with a guide rail fixed in a welding mode in the prior art, the guide rail is fixed in the bolt connection mode, the guide rail is not deformed, the welding thermal stress does not exist between the guide rail and the portal frame, the problem of thermal expansion and cold contraction can be effectively solved, the sewing precision can be effectively improved, and the portal frame assembly is particularly suitable for occasions with large transverse sewing width.

Preferably, the portal frame comprises a first beam for installing the upper machine head, a second beam for installing the lower machine head is arranged below the first beam, the guide rails are respectively fixed on the first beam and the second beam, and the guide rails are parallel to each other. So as to respectively guide the upper machine head and the lower machine head, and the upper machine head and the lower machine head can synchronously and transversely move.

In order to facilitate installation of the guide rail, preferably, the first cross beam and the second cross beam are respectively provided with a first through hole for connecting a bolt, and the guide rail is provided with a second through hole matched with the first through hole. When the guide rail is installed, only the second through holes on the guide rail are aligned with the first through holes one by one, and the guide rail is fixed through the bolts, so that the guide rail is not only very convenient, but also the guide rail cannot be deformed.

Preferably, the portal frame further comprises two vertically arranged support columns, two ends of the first cross beam and two ends of the second cross beam are respectively connected with the two support columns, and the first cross beam and the second cross beam are parallel to each other. The portal frame with the structure has the advantages of simple and compact structure, convenience in installation and disassembly, strong bearing capacity and stable structure, and is beneficial to prolonging the service life.

For the convenience of forming and cost reduction, it is preferable that the first cross member, the second cross member and/or the support member are formed of steel sections, respectively. The molding is convenient, the cost is low, and the assembly is convenient.

Preferably, the section steel is a rectangular pipe. The square tube is hollow inside, light in weight, high in strength and rigidity, and the bolt is convenient to mount due to the hollow inside.

The utility model discloses the problem of expend with heat and contract with cold is solved to the second aspect, and is further, the guide rail with still be provided with intermediate junction spare between the portal frame, intermediate junction spare adopts bolted connection's mode to be fixed in the portal frame, the guide rail adopts bolted connection's mode to be fixed in intermediate junction spare. In the scheme, the intermediate connecting piece made of different materials is arranged between the portal frame and the guide rail, so that the guide rail and the portal frame can be effectively prevented from being directly contacted and extruded, and the problem that the guide rail is greatly deformed due to expansion caused by heat and contraction caused by cold due to different materials can be effectively solved or solved by arranging the intermediate connecting piece; in addition, through setting up intermediate junction spare, can effectively increase the interval between guide rail and the portal frame for the guide rail is more outside outstanding, so that provide bigger operating space for follow-up transverse driving device's installation, it is more convenient.

In order to facilitate assembly and assembly, the intermediate connecting member is further provided with a plurality of third through holes matched with the first through holes and a plurality of fourth through holes matched with the second through holes. Utilize the cooperation of first through-hole and third through-hole, the installation and the dismantlement of carrying on intermediate junction spare that can be convenient utilize the cooperation of second through-hole and fourth through-hole, can be convenient carry out the installation and the dismantlement of guide rail, not only very convenience can effectively solve the problem that has now moreover, is favorable to improving the sewing precision.

Preferably, the second through hole and/or the third through hole are stepped holes. So that the head of the bolt can be arranged in the step hole when the installation is carried out, and the flatness of the surface of the middle connecting piece and the surface of the guide rail is kept.

Preferably, the intermediate connecting piece is preferably made of cast iron. The cost is low.

Preferably, the middle connecting piece adopts a square rod. More convenient to be matched with the portal frame and the guide rail.

The third aspect of the utility model provides a quilting machine, which comprises a frame, two sliding tables, a transverse driving device and a gantry frame component, wherein,

the frame comprises a supporting frame and a table top plate arranged at the upper part of the supporting frame,

the portal frame is transversely fixed on the support frame, the first beam is positioned above the table board, the second beam is positioned below the table board,

the two sliding tables are respectively provided with a sliding block matched with the guide rail, the sliding block and the guide rail form a moving pair along the transverse direction, the sliding tables are respectively used for installing an upper machine head and a lower machine head,

and the transverse driving device is used for driving the two sliding tables to synchronously move along the transverse direction. So as to accurately control the upper machine head and the lower machine head to synchronously move along the transverse direction.

Preferably, the transverse driving device comprises a driving motor, a screw rod and a nut matched with the screw rod, the nut is fixed on the sliding table, the screw rod and the nut form a spiral transmission mechanism along the transverse direction, and the driving motor is used for driving the screw rod to rotate. In this scheme, the screw drive mechanism that adopts screw rod and nut to constitute drives the slip table and removes along the transverse direction, at this moment, through the cooperation of guide rail and slider, not only can play the function of direction, and can prevent effectively that the nut from following the screw rod and rotating, make when driving motor drive screw rotates, the slip table can only remove along the transverse direction, in addition, the guide rail can also play the effect of bearing with the cooperation of slider, effectively alleviate the effort between screw rod and the nut, be favorable to the removal of slip table more smooth-going.

In order to improve the acting force between the screw rod and the nut in the screw transmission mechanism, the upper side and the lower side of the sliding table are respectively provided with the guide rails, and the screw rod is arranged between the two guide rails. Support and retrain the slip table through two guide rails, both can alleviate the interact power between screw rod and the nut, are favorable to the removal of slip table more smooth-going, can retrain the slip table again strictly for the slip table is strict along horizontal direction rectilinear movement, is favorable to improving the motion precision, thereby is favorable to improving the sewing precision.

In order to control the upper machine head and the lower machine head to move transversely and synchronously, the device further comprises a controller, wherein the controller is respectively connected with a driving motor in the transverse driving device and is used for controlling the two screw rods to rotate synchronously. The controller is utilized to control the two driving motors to synchronously start/stop and rotate forwards and reversely, and the driving motors drive the screw rods to synchronously rotate, so that the two sliding tables can synchronously move, the upper machine head and the lower machine head which are provided with the sliding tables can be mutually matched, and the textile fabrics can be sewn according to preset stitches.

Compared with the prior art, use the utility model provides a pair of gantry rack subassembly and quilter has following beneficial effect:

1. the gantry frame component and the quilter are simple and compact in structure and reasonable in arrangement, the guide rails are fixed in a bolt connection mode, welding thermal stress does not exist, the problem of welding deformation does not exist, the problem of deformation of the guide rails in the installation and use processes can be effectively solved, the sewing precision of the quilter is guaranteed and improved, and the gantry frame component and the quilter are particularly suitable for occasions with large transverse sewing width, such as large quilters.

2. According to the gantry frame component and the quilting machine, the intermediate connecting piece made of different materials is arranged between the guide rail and the gantry frame, so that the problem that the guide rail is greatly deformed due to thermal expansion and cold contraction can be effectively relieved or solved; in addition, through setting up intermediate junction spare, can effectively increase the interval between guide rail and the portal frame for the guide rail is more outside outstanding, so that provide bigger operating space for follow-up horizontal drive arrangement's installation, the practicality is stronger.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is one of schematic structural diagrams of a gantry assembly provided in an embodiment of the present invention, and no guide rail is provided.

Fig. 2 is a partial schematic view of fig. 1.

Fig. 3 is one of schematic structural diagrams of a gantry assembly provided in an embodiment of the present invention, after a guide rail is provided.

Fig. 4 is a partial schematic view of fig. 3.

Fig. 5 is a left side view of fig. 3.

Fig. 6a is a schematic cross-sectional view of fig. 3.

Fig. 6b is a partial top view of fig. 3.

Fig. 7 is a schematic structural view of a quilting machine provided in an embodiment of the present invention.

Fig. 8 is a schematic structural view of a gantry in a quilting machine provided in an embodiment of the present invention.

Description of the drawings

Frame 100, support frame 101, deck plate 102, lower head 103

A portal frame 200, a first beam 201, a second beam 202, a support column 203, a first through hole 204, a second through hole 205, a middle connector 206, a third through hole 207, a fourth through hole 208,

A driving motor 301, a screw 302, a sliding table 303, a mounting hole 305, a nut 306, a guide rail 307, a sliding block 308, a bearing seat 309,

A dust cover 400.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 6b, in the present embodiment, a gantry assembly is provided, which includes a gantry 200 and a guide rail 307 for guiding an upper head and/or a lower head 103, where the guide rail 307 is transversely fixed to the gantry 200 in a bolt connection manner, as shown in fig. 1 to 6b, in the gantry assembly provided in the present embodiment, the guide rail 307 is transversely fixed to the gantry 200 in a bolt connection manner, which is not only convenient for installation and disassembly of the guide rail 307, but also beneficial for simplification of installation of the guide rail 307.

As shown in fig. 1 or 3, preferably, the gantry 200 includes a first beam 201 for mounting an upper machine head, a second beam 202 for mounting a lower machine head 103 is disposed below the first beam 201, the guide rails 307 are respectively fixed to the first beam 201 and the second beam 202, and the guide rails 307 are parallel to each other; to guide the upper and lower heads 103, respectively, so that the upper and lower heads 103 can be moved laterally in synchronism.

As shown in fig. 2, 4, 6a and 6b, in order to install the guide rail 307, the first cross member 201 and the second cross member 202 are respectively provided with a first through hole 204 for connecting a bolt, and the guide rail 307 is provided with a second through hole 205 adapted to the first through hole 204. When the guide rail 307 is installed, only the second through holes 205 on the guide rail 307 are aligned with the first through holes 204 one by one and fixed by bolts, which is not only very convenient, but also does not cause the guide rail 307 to deform.

For example, as shown in fig. 1, fig. 3, fig. 6a and fig. 6b, in this embodiment, the gantry 200 further includes two vertically arranged support columns 203, two ends of the first beam 201 and the second beam 202 are respectively connected to the two support columns 203, the first beam 201 and the second beam 202 are parallel to each other, and the support columns 203 can be respectively used for connecting the support frames 101 in the quilting machine; by adopting the portal frame 200, the structure is simple and compact, the installation and the disassembly are convenient, the bearing capacity is strong, the structure is stable, and the service life is prolonged.

In order to facilitate molding and reduce cost, preferably, the first cross member 201, the second cross member 202 and/or the support may be made of profile steel, so that molding, cost reduction and assembly are facilitated. Preferably, the section steel is preferably a rectangular pipe; as shown in fig. 4, 6a and 6b, the rectangular tube has a hollow interior, light weight, high strength and rigidity, and the hollow interior facilitates the installation of the bolt.

In a further scheme, an intermediate connecting member 206 is further arranged between the guide rail 307 and the gantry 200, the intermediate connecting member 206 is fixed to the gantry 200 in a bolt connection manner, and the guide rail 307 is fixed to the intermediate connecting member 206 in a bolt connection manner, as shown in the figure, in this embodiment, by arranging the intermediate connecting member 206 made of different materials between the gantry 200 and the guide rail 307, direct contact and extrusion between the guide rail 307 and the gantry 200 can be effectively avoided, and the problem that the guide rail 307 is greatly deformed due to thermal expansion and cold contraction due to different materials can be effectively alleviated or solved by arranging the intermediate connecting member 206; in addition, by providing the intermediate connecting member 206, the distance between the guide rail 307 and the gantry 200 can be effectively increased, so that the guide rail 307 protrudes outward, as shown in fig. 1, 2 and 3, so as to provide a larger operation space for the subsequent installation of the transverse driving device, which is more convenient.

As shown in fig. 3 and 4, in a further embodiment, for assembly and assembly, the middle connector 206 is provided with a plurality of third through holes 207 corresponding to the first through holes 204, and a plurality of fourth through holes 208 corresponding to the second through holes 205. The first through hole 204 is matched with the third through hole 207, so that the middle connecting piece 206 can be conveniently mounted and dismounted, and the second through hole 205 is matched with the fourth through hole 208, so that the guide rail 307 can be conveniently mounted and dismounted; conveniently, the second through hole 205 and/or the third through hole 207 may preferably be stepped holes (including counter-sunk holes; so that when the installation is performed, the head of the bolt may be disposed in the stepped hole to prevent the head of the bolt from protruding outwards, thereby maintaining the flatness of the surface of the intermediate connecting member 206 and the surface of the guide rail 307.

Since the gantry 200 and the guide rail 307 are usually made of steel materials, the intermediate connector 206 may be made of non-steel materials, and further, preferably made of materials with a density lower than that of the steel materials, for example, in this embodiment, the intermediate connector 206 may be made of cast iron, and the density of the cast iron is lower than that of the steel.

As shown in fig. 4, 6a and 6b, the middle connector 206 is preferably a square bar, so that the middle connector 206 and the guide rail 307 can be in surface-to-surface contact when being installed, and can be more conveniently matched with the gantry 200 and the guide rail 307.

Example 2

The present embodiment provides a quilting machine comprising a frame 100, two slide tables 303, a transverse driving device, and a gantry assembly as described in embodiment 1, as shown in fig. 7 and 8, wherein,

the rack 100 comprises a support frame 101 and a table top plate 102 arranged on the upper part of the support frame 101, the support frame 101 can adopt the support frame 101 commonly used in the prior art, the purposes of bearing and supporting the table top plate 102 are mainly achieved, and meanwhile, the table top plate 102 has a certain height from the ground, so that the operation of workers is more convenient;

the gantry 200 is transversely fixed to the support frame 101, the first beam 201 is located above the table top plate 102, and the second beam 202 is located below the table top plate 102, so that the upper machine head and the lower machine head 103 arranged on the first beam 201 and the second beam 202 can be respectively located above and below the table top plate 102, so that the upper machine head and the lower machine head can be matched with each other, and the textile fabric placed on the table top plate 102 can be sewn.

The two sliding tables 303 are respectively provided with a sliding block 308 matched with the guide rail 307, the sliding block 308 and the guide rail 307 form a moving pair along the transverse direction, the sliding tables 303 are respectively used for installing an upper machine head and a lower machine head 103,

the transverse driving device is used for driving the two sliding tables 303 to synchronously move along the transverse direction. So as to precisely control the upper and lower heads 103 to move synchronously in the transverse direction.

As shown in fig. 7 and 8, in order to facilitate the installation of the upper head and the lower head 103, the sliding tables 303 are respectively provided with a plurality of installation holes 305; through setting up mounting hole 305, the installation and the dismantlement work of last aircraft nose and lower aircraft nose 103 that can be convenient, very convenience.

The transverse driving device has various embodiments, and as a preferred embodiment, the transverse driving device includes a driving motor 301, a screw 302, and a nut 306 adapted to the screw 302, the nut 306 is fixed to the sliding table 303, the screw 302 and the nut 306 form a screw transmission mechanism along the transverse direction, and the driving motor 301 is used for driving the screw 302 to rotate, as shown in fig. 7 and 8; in this scheme, the screw drive mechanism that adopts screw rod 302 and nut 306 to constitute drives slip table 303 and moves along the transverse direction, at this moment, cooperation through guide rail 307 and slider 308, not only can play the function of direction, and can prevent effectively that nut 306 from following screw rod 302 and rotating, make when driving motor 301 drive screw rod 302 rotates, slip table 303 can only move along the transverse direction, in addition, guide rail 307 can also play the effect of bearing with the cooperation of slider 308, effectively alleviate the effort between screw rod 302 and the nut 306, be favorable to the removal of slip table 303 to be smoother.

Therefore, in a further scheme, in order to improve the acting force between the screw 302 and the nut 306 in the screw transmission mechanism, in a further scheme, the upper side and the lower side of the sliding table 303 are respectively provided with the guide rails 307, the screw 302 is arranged between the two guide rails 307, as shown in fig. 8, the sliding table 303 is supported and constrained by the two guide rails 307, so that the interaction force between the screw 302 and the nut 306 can be relieved, the sliding table 303 can move more smoothly, the sliding table 303 can be strictly constrained, the sliding table 303 can strictly move linearly in the transverse direction, the movement precision can be improved, and the sewing precision can be improved.

In this embodiment, the screw 302 may be fixed to the first beam 201 or the second beam 202 through a bearing seat 309; the drive motors 301 may preferably be coupled to the respective screws 302 using couplings.

In this embodiment, this quilter includes two sets of horizontal drive arrangement is used for mutually independent drive respectively two slip table 303 synchronous motion, at this moment, this quilter still includes the controller, the controller respectively with driving motor 301 among two sets of horizontal drive arrangement links to each other for control two screw rods 302 synchronous rotations, so that control two driving motor 301 synchronous start/stop, positive and negative rotation, driving motor 301 driving screw rod 302 synchronous rotation, thereby can make two slip table 303 synchronous motion, make the last aircraft nose and the lower aircraft nose 103 that are provided with slip table 303 can mutually support, so that sew processing to the fabric according to the stitch seam that the preset has.

In the quilting machine, the controller may be a controller commonly used in the prior art, such as a PC, a single chip microcomputer, a PLC, or a DSP, wherein the single chip microcomputer includes chips such as an ARM, an Atmel, a PIC, and an AVR, which are not illustrated herein.

As another embodiment, the quilting machine comprises two sets of transverse driving devices, wherein one set of transverse driving device comprises a driving motor 301, a screw 302 and a nut 306 matched with the screw 302, the nut 306 is fixed on one sliding table 303, and the screw 302 and the nut 306 form a spiral transmission mechanism along the transverse direction; the other set of transverse driving device comprises a screw 302 and a nut 306 matched with the screw 302, the nut 306 is fixed on the other sliding table 303, and the screw 302 and the nut 306 form a spiral transmission mechanism along the transverse direction; the driving motor 301 is used for driving the two screws 302 to rotate synchronously, so as to achieve the purpose of controlling the upper machine head and the lower machine head 103 to be synchronous. It can be understood that the driving motor 301 may be connected to the two screws 302 through a transmission mechanism, and the transmission mechanism may be a shaft coupling, a gear transmission mechanism, a belt transmission mechanism, etc. so as to achieve the purpose of driving the two screws 302 to rotate synchronously by using the same driving motor 301.

In a more perfect scheme, a dust cover 400 is further included, as shown in fig. 7 or fig. 8, the dust cover 400 is disposed on the first cross beam 201, one end of the dust cover 400 is connected to the sliding table 303, and the other end of the dust cover 400 is connected to one end of the gantry 200, and is used for covering the screw 302 and the guide rail 307, so as to achieve a dust-proof effect.

It is understood that, in the present embodiment, the lateral direction means a direction along the width direction of the quilting machine (i.e., X direction) perpendicular to the moving direction of the clamping frame (Y direction).

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims

1. A portal frame assembly is characterized by comprising a portal frame and a guide rail used for guiding an upper machine head and/or a lower machine head, wherein the guide rail is transversely fixed on the portal frame in a bolt connection mode.

2. The portal frame assembly of claim 1, wherein the portal frame comprises a first beam for mounting the upper machine head, a second beam for mounting the lower machine head is arranged below the first beam, the guide rails are respectively fixed on the first beam and the second beam, and the guide rails are parallel to each other.

3. The portal frame assembly of claim 2, wherein the first and second beams are respectively provided with a first through hole for connecting a bolt, and the guide rail is provided with a second through hole adapted to the first through hole.

4. The portal frame assembly of claim 2, wherein the portal frame further comprises two vertically arranged support columns, two ends of the first beam and the second beam are respectively connected with the two support columns, and the first beam and the second beam are parallel to each other; the first cross beam, the second cross beam and/or the support adopt section steel respectively.

5. A gantry assembly according to claim 3, wherein an intermediate connector is further provided between the rail and the gantry, the intermediate connector is bolted to the gantry, and the rail is bolted to the intermediate connector.

6. A gantry frame assembly according to claim 5, wherein the intermediate connecting member is provided with a plurality of third through holes adapted to the first through holes and a plurality of fourth through holes adapted to the second through holes.

7. The gantry assembly of claim 6, wherein the second through hole and/or the third through hole is a stepped hole.

8. A gantry assembly according to claim 6, wherein said intermediate connectors are square bars and/or said intermediate connectors are made of cast iron material.

9. A quilting machine comprising a frame, two slides, a transverse drive, and the gantry assembly of any of claims 2-8, wherein,

and the transverse driving device is used for driving the two sliding tables to synchronously move along the transverse direction.

10. The quilting machine of claim 9 comprising two sets of the transverse driving devices, wherein one set of the transverse driving device comprises a driving motor, a screw rod and a nut matched with the screw rod, the nut is fixed on one sliding table, and the screw rod and the nut form a spiral transmission mechanism along the transverse direction; the other set of transverse driving device comprises a screw rod and a nut matched with the screw rod, the nut is fixed on the other sliding table, the screw rod and the nut form a spiral transmission mechanism along the transverse direction, the driving motor is respectively connected with the two screw rods through a transmission mechanism, and the transmission mechanism is a shaft coupler, a gear transmission mechanism or a belt transmission mechanism;

or, include two sets horizontal drive arrangement and controller, two sets of horizontal drive arrangement respectively include driving motor, screw rod and with the nut of screw rod looks adaptation, the nut is fixed in the slip table, the screw rod constitutes along the screw drive mechanism of horizontal direction with the nut, the controller respectively with driving motor links to each other for control two screw rods synchronous rotation.