Portal frame structure and quilting machine

Abstract

The portal frame structure comprises a portal frame, the portal frame comprises a first supporting column, a second supporting column and two cross beams arranged up and down in the height direction, the two ends of each cross beam are fixed to the first supporting column and the second supporting column respectively, and the two cross beams are used for supporting an upper machine head and a lower machine head respectively; an air inlet is formed in the first supporting column, and an air outlet is formed in the second supporting column; internal channels are respectively constructed in the two cross beams, the internal channels penetrate through the two ends of the cross beams, one ends of the two internal channels are respectively communicated with the air inlet, and the other ends of the two internal channels are respectively communicated with the air outlet; the ventilation equipment is used for driving air to flow from the air inlet to the air outlet; the portal frame is more reasonable in structure and design, the problems that errors are easily increased and the precision is easily reduced when the quilting machine is used in different environments can be solved, and the stability and the reliability can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quilting machines, in particular to a gantry structure and a quilting machine. Background Art

[0002] A quilting machine (also known as quilting equipment, computer quilting machine, etc.) is a textile machine used to sew linear patterns on textiles such as mattresses, bedspreads, and quilts. It has the characteristics of strong ability to sew thick fabrics, high complexity of quilting patterns, and strong ability to edit independent patterns. It is widely used in the textile industry.

[0003] Existing quilting machines usually include a frame for supporting, a gantry (or beam or saddle, etc.) arranged along the horizontal direction of the frame, and a machine head installed on the gantry. The machine head includes an upper machine head and a lower machine head (or machine base). The upper machine head and the lower machine head cooperate with each other and need to move synchronously along the length direction of the gantry. In actual applications, the better the synchronization between the upper machine head and the lower machine head, the better the coordination effect between the two and the higher the sewing accuracy. In order to facilitate the installation of the upper and lower machine heads, the existing gantry usually includes at least two parallel beams arranged up and down, and the two ends of the beams are respectively fixed to the support columns, as shown in the attached figure. Figure 1 As shown, the upper beam is usually located above the table panel, and the lower beam is usually located below the table panel. The upper head and the lower head are movably installed on the two beams respectively. Correspondingly, the two beams are respectively equipped with guide rails and linear drive modules. The upper head and the lower head are respectively movably set on the corresponding guide rails and are respectively connected to the corresponding linear drive modules. The linear drive module is connected to the control module. In actual operation, the control module controls the upper head and the lower head to move synchronously along the guide rails, so that high-precision sewing cooperation can be formed between the upper head and the lower head to meet different sewing needs.

[0004] In recent years, to meet the sewing requirements of large-sized textiles, existing quilting machines are developing in the direction of large-scale development. For example, the horizontal sewing size of some large quilting machines can exceed 3 meters. Accordingly, the horizontal span of the gantry in the quilting machine also needs to be greater than 3 meters, such as one disclosed in a Chinese patent. The larger the horizontal span of the gantry, the longer the length of the crossbeam, and the longer the guide rail installed on the crossbeam. Before leaving the factory, quilting machines usually need to undergo quality inspection and debugging. The error range of large quilting machines leaving the factory is usually controlled to no more than 3 threads to meet the needs of high-precision sewing. In recent years, the applicant has noticed that for quilting machines that have passed factory inspection, after being delivered to customers, problems such as increased errors and reduced accuracy are prone to occur, and this phenomenon of increased errors and reduced accuracy occurs more frequently in the south and less frequently in the north. For this reason, the applicant has conducted a lot of investigations and research, and finally found that the main reason for the increase in errors of quilting machines on site is the inconsistent thermal expansion and contraction of the two beams, which affects the coordination between the upper and lower heads. This phenomenon is especially serious in large quilting machines, and the error can even reach 30 to 40 threads, which will not only greatly reduce the sewing accuracy of the quilting machine, but also affect the reliability and stability of the quilting machine, and needs to be solved urgently. Summary of the Invention

[0005] The first aspect of the present invention is to solve the above technical problems and provide a more rationally designed gantry structure, which can not only solve the problem of increased error and reduced precision when the quilting machine is used in different environments, but also improve stability and reliability. The main structure is:

[0006] A gantry structure includes a gantry, wherein the gantry includes a first support column, a second support column, and two cross beams arranged vertically, with both ends of the cross beams respectively fixed to the first support column and the second support column, and the two cross beams are respectively used to support an upper head and a lower head;

[0007] The device further comprises a ventilation device, wherein the first support column is configured with an air inlet, and the second support column is configured with an air outlet; the two crossbeams are respectively configured with internal channels, the internal channels running through both ends of the crossbeams, one end of the two internal channels being respectively connected to the air inlet, and the other end of the two internal channels being respectively connected to the air outlet;

[0008] The ventilation device is used to drive the air to flow from the air inlet to the air outlet. In this solution, by constructing an internal channel in the crossbeam and making the internal channel pass through both ends of the crossbeam, the internal channels are distributed along the length direction of the crossbeam, so as to achieve more uniform heat exchange along the length direction of the crossbeam; by constructing an air inlet on the first support column and making one end of the two internal channels connected to the air inlet respectively, at the same time, constructing an air outlet on the second support column and making the other end of the two internal channels connected to the air outlet respectively, two air ducts with a common air inlet and flowing through the inside of the two crossbeams respectively can be formed in the gantry. Driven by the ventilation device, the air at the same position outside can enter the internal channels of the two crossbeams through the air inlet, flow along the internal channels, and finally be discharged through the air outlet; since the air entering the two crossbeams The air comes from the same position, so that the temperature of the air entering the two beams is basically the same. In the process of the air passing through the internal channel, the air exchanges heat with the beam through the internal channel. When the internal air flows synchronously and the air temperature is basically the same, not only can the temperature difference along the length of the beam be greatly reduced or even eliminated, but also the temperature or temperature distribution of the two beams can be kept consistent, effectively preventing a large temperature difference between the two beams, thereby ensuring that the thermal expansion and contraction of the two beams on site are basically the same, effectively ensuring the synchronization of the upper and lower heads, thereby effectively preventing the quilting machine from being prone to increased errors and reduced accuracy when used in different environments, and improving the stability and reliability of the quilting machine.

[0009] Furthermore, one end of the two internal channels is connected to the same air inlet, which can further ensure that the temperature of the air entering the two beams is substantially the same, effectively preventing a large temperature difference between the two beams, and thus ensuring that the thermal expansion and contraction of the two beams are substantially the same.

[0010] Furthermore, the first support column is configured with a first communicating hole, the air inlet is connected to the first communicating hole, and the first communicating hole is connected to the internal passage of the crossbeam, which is convenient for processing and assembly and helps to form an air duct that makes heat distribution more uniform.

[0011] Furthermore, the second support column is configured with a second communicating hole, the air outlet is connected to the second communicating hole, and the second communicating hole is connected to the internal passage of the crossbeam, which is convenient for processing and assembly and helps to form an air duct that makes heat distribution more uniform.

[0012] Preferably, the first connecting hole is constructed on the side wall of the first support column, the end of the beam is connected to the side wall of the first support column, and the end of the beam corresponds to the first connecting hole; the second connecting hole is constructed on the side wall of the second support column, the end of the beam is connected to the side wall of the second support column, and the end of the beam corresponds to the second connecting hole.

[0013] Furthermore, a first cavity is constructed in the first support column, and the air inlet and the first communication hole are respectively connected to the first cavity, so as to facilitate the flexible arrangement of the position of the air inlet.

[0014] Furthermore, a second cavity is constructed in the second support column, and the air outlet and the second communication hole are respectively connected to the second cavity, so as to facilitate flexible arrangement of the position of the air outlet.

[0015] Preferably, the first support column is a rectangular tube, the bottom of which is sealed with a sealing plate, forming the first cavity within the rectangular tube, and the air inlet is constructed on the side wall or top of the rectangular tube; the side wall of the first support column is configured with first communication holes at different heights, the upper crossbeam is connected to the higher first communication hole, and the lower crossbeam is connected to the lower first communication hole, so that both crossbeams can be connected to the air inlet at the same time.

[0016] Preferably, the second support column is a rectangular tube, the bottom of which is sealed with a sealing plate, forming the second cavity within the rectangular tube, and the air outlet is constructed on the side wall or top of the rectangular tube; the side wall of the second support column is configured with second communication holes at different heights, the upper crossbeam is connected to the second communication hole at the higher position, and the lower crossbeam is connected to the second communication hole at the lower position, so that both crossbeams can be connected to the air outlet at the same time.

[0017] Preferably, the first support column is formed by splicing at least two rectangular tubes side by side, which not only facilitates the formation of the first cavity but also effectively improves the bearing capacity of the first support column.

[0018] Preferably, the second support column is formed by splicing at least two rectangular tubes side by side, which not only facilitates the formation of the second cavity but also effectively improves the bearing capacity of the second support column.

[0019] Preferably, the first support column is formed by two rectangular tubes spliced side by side, the bottoms of the two rectangular tubes are closed by a sealing plate, and the sides of the two rectangular tubes are respectively configured with two first communication holes at different heights, the upper crossbeam is simultaneously connected to the two first communication holes at the higher position, and the lower crossbeam is simultaneously connected to the two first communication holes at the lower position; the opening at the top of the rectangular tube serves as an air inlet;

[0020] The second support column is composed of two rectangular tubes spliced side by side. The bottom and top of the two rectangular tubes are closed with sealing plates. The sides of the two rectangular tubes are respectively constructed with two second connecting holes of different heights. The upper crossbeam is simultaneously connected to the two second connecting holes located at the higher position, and the lower crossbeam is simultaneously connected to the two second connecting holes located at the lower position, so that the two crossbeams can be simultaneously connected to the second cavity formed in the two rectangular tubes; the two rectangular tubes in the second support column are connected by through holes, and the side wall of one of the rectangular tubes is constructed with an air outlet, and the ventilation equipment is arranged at the air outlet.

[0021] To achieve better effects, preferably, the ventilation equipment is a blower or a cooling fan.

[0022] Preferably, the ventilation device is arranged at the air inlet or at the air outlet.

[0023] The second aspect of the present invention aims to improve safety and stability. Furthermore, a protective component is provided at the air inlet or outlet, and the protective component is detachably mounted on the gantry. By providing the protective component, foreign matter can be effectively prevented from falling into the air inlet or outlet and affecting the normal operation of the quilting machine. By detachably mounting the protective component on the gantry, the installation and removal of the protective component are facilitated.

[0024] Preferably, the protective component is an isolation net or an isolation plate with air inlet holes.

[0025] Preferably, the two crossbeams are arranged horizontally; the two crossbeams are parallel to each other.

[0026] Preferably, the first support column and the second support column are symmetrically arranged at both ends of the beam, which is conducive to simplifying the structure.

[0027] The third aspect of the present invention is to solve the problem of a significant increase in sewing errors due to inconsistent thermal expansion and contraction of two beams in a quilting machine, and provide a quilting machine comprising an upper head and a lower head adapted to the upper head, and also comprising the gantry structure, wherein the upper head is arranged on the upper beam, and the lower head is arranged on the lower beam. Configuring the gantry structure in the quilting machine can ensure that the temperature or temperature distribution of the two beams remains consistent, effectively preventing a large temperature difference between the two beams, thereby ensuring that the thermal expansion and contraction of the two beams are substantially the same on site, effectively ensuring the synchronization of the upper head and the lower head, and improving sewing accuracy.

[0028] Compared with the existing technology, the gantry structure and quilting machine provided by the utility model can ensure that the temperature or temperature distribution of the two beams remain consistent, effectively prevent a large temperature difference between the two beams, thereby ensuring that the thermal expansion and contraction of the two beams on site are basically the same, effectively ensuring the synchronization of the upper head and the lower head, thereby effectively preventing the quilting machine from easily increasing errors and reducing accuracy when used in different environments, and can effectively improve the stability and reliability of the quilting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 The figure is a structural diagram of an existing gantry.

[0031] Figure 2 This is one of the structural schematic diagrams of a gantry structure provided in Example 1 of the present utility model.

[0032] Figure 3 This is the second structural diagram of a gantry structure provided in Example 1 of the utility model, in which no ventilation equipment is provided.

[0033] Figure 4 This is a cross-sectional view of a gantry structure provided in Example 1 of the present utility model.

[0034] Figure 5 This is a schematic diagram of the local structure at the air inlet of a gantry structure provided in Example 1 of the present utility model.

[0035] Figure 6 This is a structural schematic diagram of a gantry structure provided in Example 2 of the present utility model.

[0036] Figure 7 This is a partial cross-sectional view of the first support column in a gantry structure provided in Example 2 of the present utility model.

[0037] Figure 8 This is a partial cross-sectional view of the second support column in a gantry structure provided in Example 2 of the present utility model.

[0038] Figure 9 This is a schematic diagram of a gantry structure provided in Example 3 of the present utility model after the guide rails and the machine head are installed.

[0039] Markings in the figure are as follows: crossbeam 1, internal channel 11, support column 12; first support column 2, air inlet 21, first cavity 22, first connecting hole 23; second support column 3, air outlet 31, second cavity 32, second connecting hole 33, through hole 34; ventilation equipment 4; protective component 5, air inlet 51, fastener 52; sealing plate 6; guide rail 71, upper slide 72, lower slide 73, upper machine head 74, lower machine head 75. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0041] Example 1

[0042] The present embodiment provides a gantry structure suitable for a quilting machine, including a gantry and a ventilation device 4, wherein the gantry includes two beams 1 arranged vertically, a first support column 2, and a second support column 3, as shown in FIG. Figure 2-Figure 4 As shown, the two beams 1 are arranged horizontally so that the two beams 1 are parallel to each other, and the two ends of the beam 1 are fixed to the first support column 2 and the second support column 3 respectively. Figure 2-Figure 4 As shown, the first support column 2 and the second support column 3 are used to stably support the two crossbeams 1, and the two crossbeams 1 can be used to install the upper head 74 and the lower head 75 of the quilting machine respectively.

[0043] In this embodiment, the two beams 1 are respectively provided with internal channels 11, and the internal channels 11 pass through both ends of the beams 1. Figure 4 As shown; the first support column 2 is configured with an air inlet 21, the second support column 3 is configured with an air outlet 31, as Figure 2-Figure 4 As shown; one end of the two internal channels 11 is respectively connected to the air inlet 21, and the other end of the two internal channels 11 is respectively connected to the air outlet 31.

[0044] In this embodiment, the ventilation device 4 is used to drive air from the air inlet 21 to the air outlet 31, so that the air at the same position outside (i.e., the air at the air inlet 21) can enter the internal channels 11 of the two beams 1 through the air inlet 21, flow along the internal channels 11, and finally be discharged through the air outlet 31. Figure 4As shown. Since the air entering the two beams 1 comes from the same air inlet 21, the temperature of the air entering the two beams 1 is basically the same. When the air passes through the internal channel 11, the air can exchange heat with the beam 1 through the internal channel 11. When the internal air flows synchronously and the air temperature is basically the same, not only can the temperature difference along the length of the beam 1 be greatly reduced or even eliminated, but the temperature or temperature distribution of the two beams 1 can also be kept consistent, effectively preventing a large temperature difference between the two beams 1. This can ensure that the thermal expansion and contraction of the two beams 1 are basically the same on site, effectively ensuring the synchronization of the upper head 74 and the lower head 75, thereby effectively preventing the quilting machine from easily increasing errors and reducing precision when used in different environments, and can improve the stability and reliability of the quilting machine. Because according to the results of the previous application, after adopting this design, the error caused by the temperature difference of the quilting machine will be greatly reduced, far less than the error of 30 to 40 millimeters, and the error can be more easily controlled within 3 millimeters.

[0045] In implementation, the crossbeam 1, the first support column 2 and the second support column 3 can be made of metal materials, and the wall thickness of the crossbeam 1 is as uniform as possible along the length direction of the crossbeam 1. Figure 4 As shown, it is more conducive to controlling thermal expansion and contraction. Therefore, in implementation, the crossbeam 1, the first support column 2, and the second support column 3 can preferably be made of profiles, which are easy to form, low in cost, and easy to assemble. For example, in this embodiment, the crossbeam 1, the first support column 2, and the second support column 3 can preferably be made of aluminum profiles or steel profiles.

[0046] In order to facilitate processing and assembly, the crossbeam 1 may preferably be a rectangular tube, such as Figure 2-Figure 4 As shown, in order to form the internal channel 11 in the crossbeam 1, one end of the crossbeam 1 can be connected to the side wall of the first support column 2. Accordingly, the side wall of the first support column 2 is configured with a first communicating hole 23, which is connected to the air inlet 21. The end of the crossbeam 1 corresponds to the first communicating hole 23; when the end of the crossbeam 1 is connected to the side wall of the first support column 2, the first communicating hole 23 is just connected to the internal channel 11 in the crossbeam 1, as shown in FIG. Figure 4 As shown, during implementation, the end of the beam 1 can be fixed to the first support column 2 by welding or bolt connection.

[0047] Similarly, the other end of the crossbeam 1 can be connected to the side wall of the second support column 3. Accordingly, the side wall of the second support column 3 is configured with a second communication hole 33, which is connected to the air outlet 31. The end of the crossbeam 1 corresponds to the second communication hole 33. When the end of the crossbeam 1 is connected to the side wall of the second support column 3, the second communication hole 33 is connected to the internal channel 11 in the crossbeam 1. Figure 4As shown, in implementation, the end of the crossbeam 1 can be fixed to the second support column 3 by welding or bolting. In order to improve the bearing capacity, in implementation, the first support column 2 and the second support column 3 can be arranged vertically, and the crossbeam 1 is vertically connected to the first support column 2 and the second support column 3. Figure 2-Figure 4 shown.

[0048] In one embodiment, the crossbeam 1 can be connected to the air outlet 31 through a pipe. In another embodiment, the first support column 2 can also preferably adopt a hollow structure so as to form a first cavity 22 in the first support column 2. Figure 4 As shown. The air inlet 21 is connected to the first cavity 22, and the internal channels 11 of the two crossbeams 1 are connected to the first cavity 22 through the first connecting holes 23, so that the two crossbeams 1 can be connected to the same air inlet 21. Similarly, in implementation, the second support column 3 can also preferably adopt a hollow structure so as to form a second cavity 32 in the second support column 3, as shown. Figure 4 As shown, the air outlet 31 is connected to the second cavity 32. The internal channels 11 of the two crossbeams 1 are respectively connected to the second cavity 32 through the second communication holes 33, so that the two crossbeams 1 can be connected to the same air outlet 31. In practice, the number of air outlets 31 can be one or two. When there is one air outlet 31, the two crossbeams 1 can be connected to the air outlet 31 through the second cavity 32. When there are two air outlets 31, the two crossbeams 1 can be connected to the two air outlets 31 respectively.

[0049] In practice, the air inlet 21 can be set on the side of the first support column 2, or on the top of the first support column 2, such as Figure 2-Figure 4 As shown, similarly, in implementation, the air outlet 31 can be set on the side of the second support column 3, and can also be set on the top of the second support column 3.

[0050] During implementation, the first support column 2 may preferably be a rectangular tube or assembled from rectangular tubes, such as Figure 2-Figure 4 As shown, so as to form a first cavity 22 in the first support column 2. As an example, the first support column 2 adopts a rectangular tube, the bottom of the rectangular tube can be closed by a sealing plate 6. During implementation, the top of the rectangular tube can be left open to form the air inlet 21. In addition, during implementation, the top of the rectangular tube can also be closed by a sealing plate 6. At this time, the air inlet 21 can be constructed on the side wall of the rectangular tube. At the same time, the side wall of the first support column 2 is constructed with two first connecting holes 23 of different heights. The upper crossbeam 1 is connected to the first connecting hole 23 located at a high position, and the lower crossbeam 1 is connected to the first connecting hole 23 located at a low position, so that the two crossbeams 1 can be connected to the air inlet 21 at the same time, as shown in FIG. Figure 4 shown.

[0051] Similarly, in practice, the second support column 3 may preferably be made of a rectangular tube or assembled from rectangular tubes, such as Figure 2-Figure 4 As shown, so as to form a second cavity 32 in the second support column 3. As an example, the second support column 3 adopts a rectangular tube, the bottom of the rectangular tube can be closed by a sealing plate 6, and in implementation, the top of the rectangular tube can be left open to form the air outlet 31. In addition, in implementation, the top of the rectangular tube can also be closed by a sealing plate 6. At this time, the air outlet 31 can be constructed on the side wall of the rectangular tube; accordingly, the side wall of the second support column 3 is constructed with two second connecting holes 33 of different heights, the upper crossbeam 1 is connected to the second connecting hole 33 located at a high position, and the lower crossbeam 1 is connected to the second connecting hole 33 located at a low position, so that the two crossbeams 1 can be connected to the air outlet 31 at the same time, as shown in FIG. Figure 4 shown.

[0052] During implementation, the first support column 2 and the second support column can be symmetrically arranged at both ends of the beam 1, such as Figure 2 and Figure 3 shown.

[0053] In practice, the ventilation device 4 can be positioned in a variety of locations. For example, the ventilation device 4 can be positioned at the air inlet 21, where it blows outside air into the air inlet 21 and out through the air outlet 31. Alternatively, the ventilation device 4 can be positioned at the air outlet 31, where it blows air outward to create a negative pressure at the air outlet 31, thereby guiding air to continuously enter the internal passage 11 of the crossbeam 1 through the air inlet 21 and be discharged through the air outlet 31. Alternatively, the ventilation device 4 can be positioned at other locations, connected to the air outlet 31 via a duct, to achieve the same effect. Furthermore, the ventilation device 4 can be positioned within the internal passage 11 of the crossbeam 1. In this case, ventilation devices 4 of equal power can be preferably positioned within the internal passages 11 of the two crossbeams 1, respectively, so that outside air can continuously enter the internal passage 11 of the crossbeam 1 through the same air inlet 21 and ultimately be discharged through the air outlet 31.

[0054] During implementation, the ventilation device 4 may be a fan, which generally includes a motor and a rotating structure, wherein the motor is in transmission connection with the rotating structure so as to drive the rotating structure to rotate and thereby generate wind flow. For example, the ventilation device 4 may be an axial flow fan, a centrifugal fan, a blade fan, etc. In this embodiment, the ventilation device 4 is an axial flow fan, such as Figure 2-Figure 4 As shown, the axial flow fan is installed at the air outlet 31; during implementation, the ventilation equipment 4 can also use a cooling fan, which can be a centrifugal cooling fan, an axial flow cooling fan, etc.

[0055] In a more perfect solution, a protective component 5 is further provided at the air inlet 21 or the air outlet 31, such as Figure 5As shown, foreign matter is prevented from falling into the air inlet 21 or the air outlet 31 and affecting the normal operation of the quilting machine. In implementation, the protective component 5 can be a mesh-structured isolation net or an isolation plate with air inlet holes 51; in implementation, the protective component 5 can be detachably mounted on the first support column 2 by means of gluing, bolting, etc. For example, in this embodiment, the protective component 5 is an isolation plate with a plurality of strip-shaped air inlet holes 51, as shown in FIG. Figure 5 As shown, the air inlet holes 51 are arranged in an array, and the protective component 5 can be installed on the first support column 2 using fasteners 52 such as bolts or screws.

[0056] When in use, the guide rail 71 for guiding can be directly or indirectly installed on the beam 1 and arranged along the length direction of the beam 1, such as Figure 9 As shown, in order to guide the synchronous movement of the upper head 74 and the lower head 75.

[0057] Example 2

[0058] To improve load-bearing capacity, the main difference between this embodiment 2 and the above-mentioned embodiment 1 is that in the gantry structure provided by this embodiment, the first support column 2 can be formed by splicing at least two rectangular tubes side by side. This not only facilitates the formation of the first cavity 22, but also effectively improves the load-bearing capacity of the first support column 2. Correspondingly, the second support column 3 can also be formed by splicing at least two rectangular tubes side by side. This not only facilitates the formation of the second cavity 32, but also effectively improves the load-bearing capacity of the second support column 3, thereby improving the load-bearing capacity of the entire gantry.

[0059] For example, Figure 6-Figure 7 As shown, the first support column 2 can be formed by splicing two rectangular tubes side by side. The bottoms of the two rectangular tubes can be closed by using a sealing plate 6. The sides of the two rectangular tubes are respectively constructed with two first communication holes 23 of different heights. The upper crossbeam 1 is simultaneously connected to the two first communication holes 23 located at the upper position, and the lower crossbeam 1 is simultaneously connected to the two first communication holes 23 located at the lower position, so that the two crossbeams 1 can be simultaneously connected to the first cavities 22 formed in the two rectangular tubes. In this embodiment, the air inlet 21 is preferably arranged at the top of the rectangular tube, as shown in FIG. Figure 6-Figure 7 As shown, two adjacent air inlets 21 are formed.

[0060] Similarly, if Figure 6 and Figure 8As shown, the second support column 3 can be formed by splicing two rectangular tubes side by side. The bottoms of the two rectangular tubes can be closed by using a sealing plate 6. The sides of the two rectangular tubes are respectively constructed with two second communication holes 33 of different heights. The upper crossbeam 1 is simultaneously connected to the two second communication holes 33 located at the higher position, and the lower crossbeam 1 is simultaneously connected to the two second communication holes 33 located at the lower position, so that the two crossbeams 1 can be simultaneously connected to the second cavity 32 formed in the two rectangular tubes. In this embodiment, the air outlet 31 can be set at the top of the rectangular tube or at the side wall of the rectangular tube, for example, as shown in FIG. Figure 6 and Figure 8 As shown, the top of the second support column 3 is also closed by a sealing plate 6. At the same time, the two rectangular tubes in the second support column 3 are connected through a through hole 34. The side wall of one of the rectangular tubes is constructed with an air outlet 31, and the ventilation equipment 4 can be set at the air outlet 31.

[0061] Example 3

[0062] This embodiment provides a quilting machine, including the aforementioned gantry structure, an upper head 74, a lower head 75 and a control module, wherein the upper beam 1 is equipped with two mutually parallel guide rails 71, such as Figure 9 As shown, a slider is movably connected to the guide rail 71, each slider is fixed to an upper slide 72, and an upper head 74 is installed on the upper slide 72; the upper slide 72 is transmission-connected to the linear drive module.

[0063] At the same time, the crossbeam 1 located below is equipped with two mutually parallel guide rails 71, such as Figure 9 As shown, a slider is movably connected to the guide rail 71, and each slider is fixed to a lower slide 73, a lower head 75 is installed on the lower slide 73, and is adapted to the upper head 74 above; the lower slide 73 is transmission-connected to the linear drive module.

[0064] Each linear drive module is connected to a control module respectively, and the control module is used to control the linear drive module so that the linear drive module can be used to drive the upper head 74 and the lower head 75 to move synchronously along the beam 1, and the upper head 74 and the lower head 75 are connected to the control module respectively, so that high-precision sewing cooperation can be formed between the upper head 74 and the lower head 75 to meet different sewing needs.

[0065] During implementation, the ventilation device 4 may be connected to a control module so as to utilize the control module to control the start and stop of the ventilation device 4. During implementation, the control module may include an existing controller, etc., which will not be described one by one here.

[0066] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gantry structure, comprising a gantry, wherein the gantry comprises a first support column, a second support column, and two cross beams arranged vertically, with the ends of the cross beams being fixed to the first support column and the second support column, respectively, and the two cross beams being used to support an upper machine head and a lower machine head, respectively; characterized in that: The device further comprises a ventilation device, wherein the first support column is configured with an air inlet, and the second support column is configured with an air outlet; the two crossbeams are respectively configured with internal channels, the internal channels running through both ends of the crossbeams, one end of the two internal channels being respectively connected to the air inlet, and the other end of the two internal channels being respectively connected to the air outlet; Ventilation equipment is used to drive air from the air inlet to the air outlet.

2. The gantry structure according to claim 1, characterized in that: The first supporting column is configured with a first communicating hole, the air inlet is connected to the first communicating hole, and the first communicating hole is connected to the internal passage of the crossbeam; The second supporting column is configured with a second communicating hole, the air outlet is communicated with the second communicating hole, and the second communicating hole is communicated with the inner channel of the crossbeam.

3. The gantry structure according to claim 2, characterized in that: A first communication hole is constructed in the side wall of the first support column, an end of the crossbeam is connected to the side wall of the first support column, and the end of the crossbeam corresponds to the first communication hole; a second communication hole is constructed in the side wall of the second support column, an end of the crossbeam is connected to the side wall of the second support column, and the end of the crossbeam corresponds to the second communication hole; and / or, the first support column and the second support column are symmetrically arranged at both ends of the beam; And / or, one end of the two internal channels is respectively connected to the same air inlet.

4. The gantry structure according to claim 2, characterized in that: A first cavity is constructed in the first support column, and the air inlet and the first communicating hole are respectively connected to the first cavity; a second cavity is constructed in the second support column, and the air outlet and the second communicating hole are respectively connected to the second cavity.

5. The gantry structure according to claim 4, characterized in that: The first support column is a rectangular tube, the bottom of which is sealed by a sealing plate, forming the first cavity inside the rectangular tube, and the air inlet is constructed on the side wall or top of the rectangular tube; the side wall of the first support column is constructed with first communication holes at different heights, the upper crossbeam is connected to the first communication hole at the higher position, and the lower crossbeam is connected to the first communication hole at the lower position; The second support column adopts a rectangular tube, the bottom of the rectangular tube is closed by a sealing plate, the second cavity is formed in the rectangular tube, and the air outlet is constructed on the side wall or top of the rectangular tube; the side wall of the second support column is constructed with second connecting holes of different heights, the upper crossbeam is connected to the second connecting hole located at the high position, and the lower crossbeam is connected to the second connecting hole located at the low position.

6. The gantry structure according to claim 4, characterized in that: The first support column is formed by splicing at least two rectangular tubes side by side; the second support column is formed by splicing at least two rectangular tubes side by side.

7. The gantry structure according to claim 6, characterized in that: The first support column is formed by two rectangular tubes spliced side by side. The bottoms of the two rectangular tubes are sealed with a sealing plate. The sides of the two rectangular tubes are respectively configured with two first communication holes at different heights. The upper crossbeam is connected to both the higher first communication holes, and the lower crossbeam is connected to both the lower first communication holes. The opening at the top of the rectangular tube serves as an air inlet. The second support column is composed of two rectangular tubes spliced side by side. The bottom and top of the two rectangular tubes are closed with sealing plates. The sides of the two rectangular tubes are respectively constructed with two second connecting holes of different heights. The upper crossbeam is simultaneously connected to the two second connecting holes located at the higher position, and the lower crossbeam is simultaneously connected to the two second connecting holes located at the lower position, so that the two crossbeams can be simultaneously connected to the second cavity formed in the two rectangular tubes; the two rectangular tubes in the second support column are connected by through holes, and the side wall of one of the rectangular tubes is constructed with an air outlet, and the ventilation equipment is arranged at the air outlet.

8. The gantry structure according to claim 1, characterized in that: The ventilation equipment is a blower or a cooling fan; the ventilation equipment is arranged at the air inlet or the air outlet.

9. The gantry structure according to claim 1, characterized in that: A protective component is further provided at the air inlet or the air outlet, and the protective component is detachably mounted on the gantry; the protective component is an isolation net or an isolation plate with an air inlet hole.

10. A quilting machine comprising an upper head and a lower head adapted to fit the upper head, characterized in that: It also includes the gantry structure described in any one of claims 1-9, wherein the upper head is arranged on the upper crossbeam, and the lower head is arranged on the lower crossbeam.

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