Embroidery machine embroidery frame structure and embroidery machine

Abstract

An embroidery frame structure and an embroidery machine belong to the technical field of embroidery machines. The embroidery frame structure includes a table, an embroidery frame, an X-guide rail, a Y-front guide rail, a Y-rear guide rail, a plurality of X-drive systems, and a plurality of Y-drive systems; the X-guide rail is slidably connected to the left and / or right gears of the embroidery frame, the Y-front guide rail is slidably connected to the front gear of the embroidery frame, and the Y-rear guide rail is slidably connected to the rear gear of the embroidery frame; the Y-front guide rail and the Y-rear guide rail are arranged on the table in parallel along the X-axis direction, and drive the embroidery frame to move along the Y-axis track in the Y-drive system; the X-guide rail is arranged above the table along the Y-axis direction and is located above the Y-front guide rail and the Y-rear guide rail, and the X-guide rail drives the embroidery frame to move along the X-axis track in the X-drive system; the X-axis track and the Y-axis track are respectively arranged in the upper and lower spaces bounded by the embroidery frame movement plane. The embroidery machine includes the above-mentioned embroidery frame structure. The present invention can complete the embroidery operation of large-sized or small-sized embroidery patterns, the embroidery operation is stable, and high-quality embroidery products are finally obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of embroidery machines, and in particular relates to an embroidery frame structure and an embroidery machine. Background Art

[0002] The computer embroidery machine includes an embroidery part and a frame moving part. The spindle motor of the embroidery part changes speed through a speed change mechanism, one way of output is sent to the upper shaft to drive the needle bar to move up and down, and the other way of output is sent to the lower shaft to drive the rotary shuttle to rotate and supply the bottom line. The X-axis drive motor and the Y-axis drive motor of the frame moving part are connected to the embroidery frame through a drive mechanism respectively, so as to drive the embroidery frame to reciprocate along the X-axis and Y-axis directions in the working plane. The controller receives the pattern data and outputs the spindle motor control signal, the X-axis drive motor control signal and the Y-axis drive motor control signal according to a predetermined strategy to drive the spindle motor, the X-axis drive motor and the Y-axis drive motor. When the computer embroidery machine is working, the needle bar moves up and down with the needle and thread, and the rotary shuttle rotates with the needle bar to complete the embroidery action; the embroidery frame reciprocates in the X-axis and Y-axis directions of the working plane, and the pattern of the embroidery product is obtained by the movement of the embroidery frame along the X-axis and Y-axis directions.

[0003] As embroidery patterns develop towards larger sizes, ordinary embroidery frames cannot meet the embroidery needs, and it is necessary to replace embroidery frames of different sizes according to the size of the embroidery to complete the embroidery. However, this method is not flexible and is not suitable for the embroidery process of embroidery of any size. As the size of the embroidery frame increases, the rigidity of the embroidery frame decreases, causing the embroidery frame to deform and bend, which in turn affects the embroidery quality. The large-scale change of the embroidery pattern can be an extension change of the longitudinal length (i.e., the length of the embroidery material placed on the embroidery frame in the Y-axis direction), or an extension change of the transverse length (i.e., the length of the embroidery material placed on the embroidery frame in the X-axis direction), or an extension change of the longitudinal length and the transverse length. For the extension change of the longitudinal length, the length of the Y-axis guide rail in the Y drive system, the length of the embroidery frame in the Y-axis direction, and the length of the embroidery machine table in the Y-axis direction can be extended on the existing embroidery frame (refer to the embroidery frame structure disclosed in the invention patent application CN201911022584.1). As for the extension change of the transverse length, it is impossible to directly use the existing embroidery frame to complete the embroidery process. Because the length of the X-axis guide rail in the existing X-drive system is generally within 1.8 meters, and the interval between adjacent Y-drive mechanisms is about 1.8 meters. The X-guide rail (the X-guide rail is arranged along the Y-axis direction of the embroidery machine table) is arranged orthogonally to the Y-guide rail (the Y-guide rail is arranged along the X-axis direction of the embroidery machine table) above the embroidery machine table, and the X-guide rail is placed below the Y-guide rail. Since the length of the X-axis guide rail is less than the spacing between the two Y-axis guide rails on both sides of the X-axis guide rail, there will be no interference when the embroidery frame moves in the X-axis direction. Once the size of the embroidery pattern is extended in the horizontal length, there is a situation where it is greater than 1.8 meters. For example, when the embroidery material is a wall cloth, the horizontal size of the embroidery pattern may reach 2.8 meters. In this case, when the embroidery frame moves in the X-axis direction, the X-guide rail will inevitably interfere with the Y-guide rail. Finally, the X-axis effective stroke of the X-guide rail can only be the spacing between the two Y-axis guide rails on both sides of the X-axis guide rail, which will make it impossible to complete the embroidery. If the existing embroidery machine is used to complete embroidery of the above size, the embroidery material needs to be completed in sections. The 2.8 meters of embroidery material needs to be divided into two times, and each time embroidery is performed according to 1.4 meters. This will cause the final embroidery to have discontinuous patterns, greatly reducing the quality of the embroidery.

[0004] Invention patent application CN201810817157.1 discloses a long-stroke embroidery machine, and specifically discloses that the embroidery machine includes an embroidery machine body, a beam arranged on the body, an embroidery frame, an X- and Y-direction guide rail assembly and a corresponding drive, wherein the X- and Y-direction guide rail assemblies include corresponding X- and Y-direction guide rails, and sliders sliding on the corresponding guide rails, and the embroidery machine also includes at least one hanging guide rail located at a corresponding position of the embroidery frame X-guide rail assembly and relatively fixedly arranged above the embroidery frame, wherein the hanging guide rail is parallel to the Y-direction guide rail, and each of the hanging guide rails is provided with at least one second slider, wherein the second slider is slidably suspended on the corresponding hanging guide rail, and the second slider is fixedly connected to the corresponding position of the embroidery frame. The X-guide rail assembly in the invention is actually the Y-guide rail described above, and the Y-guide rail assembly is actually the X-guide rail described above. The invention only adds a hanging guide rail parallel to the Y-guide rail assembly to improve the stability of the embroidery frame, but does not solve the problem that the existing embroidery machine cannot complete the embroidery operation of embroidery patterns with extended horizontal lengths. As for the improvement of the stability of the embroidery frame, in the invention, only one end of the hanging rail is connected to the crossbeam, and the stability of the other end mainly depends on the strength of the hanging rail itself and the cooperation between the slider and the hanging rail. Summary of the invention

[0005] Aiming at the problems existing in the prior art, the present invention proposes an embroidery frame structure and an embroidery machine, which can complete the embroidery operation of large-sized or small-sized embroidery patterns, and the embroidery operation is stable, so that high-quality embroidery products are finally obtained.

[0006] The present invention is achieved through the following technical solutions:

[0007] An embroidery frame structure of an embroidery machine comprises a table, an embroidery frame, an X-guide rail, a Y-front guide rail, a Y-rear guide rail, a plurality of X-drive systems, and a plurality of Y-drive systems; the X-guide rail is slidably connected to the left gear and / or the right gear of the embroidery frame, the Y-front guide rail is slidably connected to the front gear of the embroidery frame, and the Y-rear guide rail is slidably connected to the rear gear of the embroidery frame; the Y-front guide rail and the Y-rear guide rail are arranged on the table in parallel along the X-axis direction, and drive the embroidery frame to move along the Y-axis track in the Y-drive system; the X-guide rail is arranged above the table along the Y-axis direction and is located above the Y-front guide rail and the Y-rear guide rail, and the X-guide rail drives the embroidery frame to move along the X-axis track in the X-drive system; the X-axis track and the Y-axis track are respectively arranged in upper and lower spaces bounded by the embroidery frame movement plane.

[0008] In the existing embroidery frame structure, the X-guide rail is located on the embroidery machine table, the Y-guide rail is placed above the X-guide rail, and the X-axis track and the Y-axis track are both placed in the lower space bounded by the embroidery frame movement plane, such as being set on the embroidery machine frame base below the table. The X-guide rail can drive the embroidery frame to move along the X-axis track under the drive of the X-drive system, and the Y-guide rail can drive the embroidery frame to move along the Y-axis track under the drive of the Y-drive system. Among them, the length of the X-axis track is less than the spacing between the two Y-value tracks located on both sides of the X-axis track, so there is no interference problem when the X-guide rail and the Y-guide rail move. When the embroidery pattern develops in the direction of larger size, such as the larger size change of the embroidery pattern is the extension of the horizontal length, it is necessary to lengthen the length of the X-axis track, but the X-axis track and the Y-axis track are both installed on the embroidery machine frame base and are located on the same plane at the bottom of the table, so it is impossible to install an X-axis track whose length is greater than the spacing between the two Y-axis tracks, and it is impossible to complete the embroidery operation of large-size embroidery patterns.

[0009] In view of this problem, if the setting position of the X-axis track is changed to solve the above interference problem, for example, the X-axis track is installed on the base of the embroidery machine frame, specifically below the table and below the Y-axis track, when the length of the X-axis track is greater than the spacing between the two Y-axis tracks on both sides of the X-axis track, since the X-guide rail is located on the embroidery machine table, the driving connection between the X-guide rail and the X-axis track is difficult to achieve, and cannot be achieved without affecting the driving connection between the Y-guide rail and the Y-axis track; if the setting position of the Y drive mechanism is changed to solve the above interference problem, for example, the Y-axis track is set above the embroidery machine table, the Y-axis track can be arranged by setting a suspension beam, and a Y pulley connected to the Y-guide rail is set on the Y-axis track. Since there are often multiple Y-axis tracks on the embroidery machine table, and the Y-axis track extends from the front end of the embroidery machine's main beam to the rear end of the embroidery machine's main beam, although the interference problem can be solved, the entire embroidery machine table is covered with suspension beams with Y-axis tracks, which is not conducive to the operation of the embroidery machine. If only one of the Y-axis tracks (such as the Y-axis track located in the middle of the embroidery machine) is arranged above the embroidery machine table by means of a cantilever beam, and accordingly, a Y pulley connected to the Y guide rail is provided on the Y-axis track, and other Y-axis tracks and the Y-axis track are synchronized with each other by means of an indirect transmission, then during high-speed embroidery, there will be differences in the synchronization between the multiple Y drive systems, the embroidery frame cannot move effectively, and cannot effectively cooperate with the machine head to complete the pattern embroidery.

[0010] In order to realize the driving connection and complete the embroidery operation of large-sized embroidery patterns, an embroidery machine frame structure is proposed in which the X-axis track and the Y-axis track are set on different planes, and the X guide rail and the Y guide rail are set in reverse positions. Based on the above structure, the present invention can realize the embroidery operation of embroidery patterns of different sizes, such as the length of the X-axis track located above the two Y-axis tracks is greater than, equal to, or less than the distance between the two Y-axis tracks. The embroidery machine can be displaced according to the length of the default X-axis track, and can also realize the embroidery operation of embroidery patterns of different sizes within the length range of the X-axis track according to the displacement movement instruction.

[0011] Furthermore, under this arrangement, several Y-axis rails are installed on the frame base and evenly distributed, and the entire embroidery frame can move stably under the drive of the Y front rail and the Y rear rail. In the case where one of the Y-axis rails (such as the Y-axis rail located in the middle of the embroidery machine) is arranged above the embroidery machine table by a cantilever beam, since the Y drive system is divided into two drive components at the front and rear ends of the beam, the two drive components are connected by a connecting plate, and the drive motor of the Y drive system is arranged at the rear end of the beam (the front end of the beam is the embroidery machine operation side), the part of the Y-axis rail at the rear end of the beam can be arranged above the embroidery machine table by a cantilever beam, while the part of the Y-axis rail at the front end of the beam cannot be arranged above the embroidery machine table by a cantilever beam, which will result in several Y-axis rails being unable to be evenly distributed, and a Y pulley connected to the Y rail needs to be arranged on the Y-axis rail accordingly. The embroidery frame is subjected to uneven force when it reciprocates, and the entire embroidery frame is unstable under the drive of the Y front rail and the Y rear rail.

[0012] Preferably, the length of the X-axis track located above the two Y-axis tracks is greater than the distance between the two Y-axis tracks.

[0013] Preferably, the Y-axis track is arranged on the frame base of the embroidery machine.

[0014] Preferably, the embroidery machine frame structure further comprises a suspension beam straddling above the table; the X-axis track is arranged at the bottom of the suspension beam.

[0015] Preferably, the suspension beam is fixed on a main beam of the embroidery machine and / or fixed on a frame base of the embroidery machine.

[0016] Preferably, the X drive system comprises an X drive mechanism and an X-axis track; the X drive mechanism comprises an X pulley, an X transmission member, and an X drive motor; the X pulley is fixedly connected to the X guide rail, and the X drive motor drives the X transmission member to drive the X pulley to move along the X-axis track.

[0017] Preferably, the Y drive system comprises a Y drive mechanism and a Y-axis track (7); the Y drive mechanism comprises a Y pulley, a Y transmission member, and a Y drive motor; the front end of the Y pulley is fixedly connected to the Y front guide rail, and the rear end of the Y pulley is fixedly connected to the Y rear guide rail; the Y drive motor drives the transmission member to drive the Y pulley to move along the Y-axis track (7).

[0018] An embroidery machine comprises the above-mentioned embroidery machine frame structure and a plurality of embroidery machine heads.

[0019] The present invention has the following beneficial effects:

[0020] An embroidery frame structure and an embroidery machine can realize embroidery operation of embroidery patterns of different sizes by changing the arrangement positions of X and Y guide rails and their driving mechanisms. The embroidery operation is stable, and the embroidery frame is not easily deformed under high-speed movement, so that high-quality embroidery can be finally obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of an embroidery frame structure of an embroidery machine of the present invention;

[0022] Figure 2 The present invention is a top view of an embroidery frame structure of an embroidery machine. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] The "front", "back", "left" and "right" mentioned in this article are described according to the directions shown in the figure, that is, according to the operator's habit of standing in front of the embroidery machine to operate the embroidery machine (such as Figure 1 The position of the machine head 100 is the operating side of the embroidery machine). The "Y axis" and "X axis" mentioned in this article are directions marked according to the XY coordinate system. For the position where "X" or "Y" is added before the technical feature but does not limit the feature, it is defined according to the XY coordinate system. Specifically, the X guide rail is a guide rail arranged along the Y axis direction of the embroidery machine, and the X axis track is arranged along the X axis direction of the embroidery machine. The X guide rail and the X axis track are a set of matching components. The X guide rail is connected to the embroidery frame, and the X guide rail is connected to the X pulley in the X drive system. The X pulley moves along the X axis track, that is, under the drive of the X drive system, the embroidery frame moves along the X axis direction, such as the front and rear directions of the embroidery machine in the figure. The Y front rail / Y rear rail is a rail arranged along the X-axis direction of the embroidery machine. The Y-axis track is arranged along the Y-axis direction of the embroidery machine. The Y front rail and the Y rear rail are respectively connected to the Y-axis track through the Y pulley structure in the Y drive system. The three constitute a matching component. The Y front rail and the Y rear rail are connected to the embroidery frame. The Y pulley moves along the Y-axis track, that is, the embroidery frame moves along the Y-axis direction, such as the left and right directions of the embroidery machine in the figure.

[0025] like Figure 1 , 2 The present invention discloses an embroidery frame structure for an embroidery machine, comprising a table 1, an embroidery frame 2, an X-guide rail 3, a Y-front guide rail 4, a Y-rear guide rail 5, a plurality of X-drive systems, and a plurality of Y-drive systems. The X-guide rail 3 is slidably connected to the left stop 21 or the right stop 22 of the embroidery frame 2, the Y-front guide rail 4 is slidably connected to the front stop 23 of the embroidery frame 2, and the Y-rear guide rail 5 is slidably connected to the rear stop 24 of the embroidery frame 2. The Y-front guide rail 4 and the Y-rear guide rail 5 are arranged on the table 1 in parallel along the X-axis direction, and drive the embroidery frame 2 to move along the Y-axis track 7 in the Y-drive system. The X-guide rail 3 is arranged above the table 1 along the Y-axis direction and is located above the Y-front guide rail 4 and the Y-rear guide rail 5, and the X-guide rail 3 drives the embroidery frame 2 to move along the X-axis track 6 in the X-drive system.

[0026] The X-axis track 6 and the Y-axis track 7 are respectively arranged in the upper and lower spaces bounded by the embroidery frame movement plane. Figure 1 , 2 ), the Y-axis track 7 is directly mounted on the embroidery machine frame base 11, and is arranged in the lower space bounded by the embroidery frame motion plane, and the X-axis track is arranged above the table, such as installing the X-axis track at the bottom of the suspension beam that bridges the table. In another embodiment, the Y-axis track 7 is mounted on the embroidery machine frame base 11, and the embroidery machine frame base 11 is provided with a suspension beam 12 that supports the Y-axis track, and the Y-axis track is arranged in the lower space bounded by the embroidery frame motion plane. The X-axis track is arranged above the table, such as installing the X-axis track at the bottom of the suspension beam 9 that bridges the table. Compared with the two embodiments, the second embodiment is better than the first embodiment. Since the Y-axis track is arranged in the Y-axis direction of the embroidery machine, extending from the front end of the beam to the rear end of the beam, the overall length is relatively long, and each embroidery machine is equipped with multiple Y-axis tracks. If they are all directly mounted on the frame base 11, the frame base 11 cannot provide sufficient support, especially when the embroidery machine is running at high speed, the Y-axis track needs more stable support. When the frame base 11 is provided with a hanging beam 12 (see Figure 1 ), a Y-axis track is installed on the top of the hanging beam 12, and the hanging beam can provide a supporting fulcrum for multiple Y-axis tracks, further improving the stability of the Y-axis track. The hanging beam and the cantilever beam can be set separately or in one piece. Figure 1 The middle hanging beam 12 and the suspension beam 9 form an integrated structure: the suspension beam 9 is a beam structure spanning above the platform, mainly composed of two Y upper beams arranged along the Y axis direction; the hanging beam 12 is a beam structure spanning below the platform, mainly composed of two Y lower beams arranged along the Y axis direction and an X lower beam connecting the two Y lower beams in the X axis direction, wherein there can be two or more X lower beams, and the Y upper beam and Y lower beam on the same side are connected. In this way, both the X track and the Y track can be stably supported. Specifically, Figure 1 , 2The figure shows a suspension beam 9 longitudinally spanning above the table 1, and two parallel Y upper beams are provided, so that the two Y upper beams can provide support forces at both ends for the X-axis track. The suspension beam 9 can be arranged below or above the main beam 8, or can be arranged to penetrate the main beam 8 of the embroidery machine. When the suspension beam 9 is arranged below or above the main beam 8, the suspension beam 9 is arranged below or above the main beam by being installed on the frame base 11 of the embroidery machine. When the suspension beam 9 penetrates the main beam 8, the suspension beam is only fixed on the main beam of the embroidery machine, or the suspension beam is fixed on the main beam of the embroidery machine and fixed on the frame base 11 of the embroidery machine, and the main beam 8 can provide a supporting fulcrum for the suspension beam, thereby increasing the structural strength of the overall suspension beam. Moreover, the length of the X-axis track is much shorter than that of the Y-axis track. In summary, when the X-axis track is arranged under this beam structure, the X-guide rail can be stably connected to the X-axis guide rail, thereby ensuring the smooth movement of the embroidery frame. The present invention is not limited to Figure 1 , 2 The cantilever beam and hanging beam shown in the figure can also be horizontally connected across the top of the table 1, and the hanging beam can also be horizontally connected across the bottom of the table and connected by a longitudinal connecting beam.

[0027] To further improve the structural strength of the embroidery frame connection and the stability of the embroidery frame movement, it is preferred to set an X-drive system with four sets of X-axis tracks, two sets are arranged in front of the embroidery machine beam 8, and two sets are arranged behind the embroidery machine beam 8. An X guide rail moves along the four sets of X-axis tracks through the X pulley of the X-drive system; the X pulley moving on each set of X-axis tracks is driven by its own drive motor, and all the drive motors are connected by a connecting shaft to achieve synchronous drive (such as Figure 1 , 2 As shown). In addition, two sets of X-axis tracks can be set, one set in front of the embroidery machine beam, and one set in the back of the embroidery machine beam. Both sets of X-axis tracks are connected to the same X-guide rail drive. For embroidery patterns with long longitudinal dimensions, setting four sets of X-axis tracks, or even six or eight sets of X-axis tracks or more even sets of X-axis tracks will improve the stability of the embroidery frame connection. Specifically, the corresponding number of X-axis tracks and the driving mechanism such as the X-pulley matched with the X-axis tracks are set according to the longitudinal dimensions; and setting an X drive system with two sets of X-axis tracks may have the problem of poor stability.

[0028] The embroidery frame structure of the embroidery machine of the present invention can realize the embroidery operation of embroidery patterns of different sizes. When embroidering embroidery patterns of conventional sizes (mainly referring to embroidery patterns that can be completed by the existing embroidery frame structure of the embroidery machine), the length of the X-axis track located above the two Y-axis tracks can be set to be less than the spacing between the two Y-axis tracks, and a driving mechanism matched with the track can be provided; or the length of the X-axis track located above the two Y-axis tracks can be set to be greater than or equal to the spacing between the two Y-axis tracks, and a driving mechanism matched with the track can be provided, and a displacement movement instruction can be set in the embroidery machine control program, and the displacement movement instruction is set according to the embroidery of embroidery patterns of conventional sizes; when embroidering embroidery patterns of unconventional sizes (referring to embroidery patterns larger than conventional sizes, especially embroidery patterns with longitudinal length exceeding the embroidery range of existing embroidery machines), the length of the X-axis track located above the two Y-axis tracks can be set to be greater than or equal to the spacing between the two Y-axis tracks, and the embroidery machine can be displaced according to the length of the default track, and can also realize the embroidery operation of embroidery patterns of different sizes within the length range of the X-axis track according to the displacement movement instruction.

[0029] The X drive mechanism includes an X drive motor and a transmission member. The X drive motor drives the transmission member (belt or chain) to move. In order to achieve drive synchronization between multiple X drive mechanisms, the X drive motors on each X drive mechanism are coaxially connected through a drive shaft. The X drive system includes an X drive mechanism and an X-axis track. The X drive mechanism includes an X pulley, an X transmission member (such as a belt or chain), and an X drive motor. The X pulley is fixedly connected to the X guide rail, and the X drive motor drives the X transmission member to drive the X pulley to move along the X-axis track. In order to achieve drive synchronization between multiple X drive systems, each drive mechanism is connected by a connecting shaft along the Y-axis direction (such as Figure 1 ).

[0030] The Y drive system includes a Y drive mechanism and a Y axis track. The Y drive mechanism includes a Y pulley, a Y transmission member, and a Y drive motor; the front end of the Y pulley is fixedly connected to the Y front guide rail, and the rear end of the Y pulley is fixedly connected to the Y rear guide rail; the Y drive motor drives the transmission member to drive the Y pulley to move along the Y axis track (7). In one embodiment, the Y pulley is a pulley, which can be connected to the Y front guide rail and the Y rear guide rail respectively. In another embodiment, the Y pulley includes a Y front pulley, a Y rear pulley, and a connecting plate connecting the Y front pulley and the Y rear pulley. The Y front pulley is fixedly connected to the Y front guide rail, and the Y rear pulley is fixedly connected to the Y rear guide rail. The Y front pulley is fixed to the front end of the connecting plate, and the Y rear pulley is fixed to the rear end of the connecting plate. The above structure specifically refers to the connecting plate assembly disclosed in the invention patent application CN201911022584.1 and Figures 8 and 9 in the invention patent application CN201911022584.1.

[0031] The embroidery frame 2 includes a left frame 21, a right frame 22, a front frame 23, and a rear frame 24, which form a rectangular structure. The embroidery frame is used to fix the embroidery material. To facilitate replacement, the structure of the embroidery frame can be set to a structure that is easy to disassemble, for example, one of the front frame 23 and the rear frame 24 is set to a detachable structure, or both of the front frame 23 and the rear frame 24 are set to a detachable structure.

[0032] according to Figure 1 , 2 Under the structural layout of the example shown, during the X-axis movement of the embroidery frame 2, the left part of the embroidery frame near the front part will shake to a certain extent and the shaking amplitude will gradually increase. The embroidery frame is in an unstable state caused by the local shaking of the embroidery frame, which is prone to needle breakage. Therefore, the Y front rail and the Y rear rail are configured on the embroidery frame, and the Y front rail is used to stabilize the front part of the embroidery frame, which can suppress the left front part and solve the shaking phenomenon.

[0033] The X rail is slidably connected to the left and / or right sections of the embroidery frame, such as through a sliding connection point (such as the X sub-rail pressure plate disclosed in the invention patent application CN201911022584.1, which will not be repeated here). Similarly, the Y front rail is slidably connected to the front section of the embroidery frame, and the Y rear rail is slidably connected to the rear section of the embroidery frame, such as through a sliding connection point (such as the Y sub-rail pressure plate disclosed in the invention patent application CN201911022584.1, which will not be repeated here). The number of the above connection points is set according to the stroke size of the embroidery frame, such as the number of sliding connection points at the X rail is set according to the Y-axis stroke size of the embroidery frame, and the number of sliding connection points at the Y front rail / Y rear rail is set according to the X-axis stroke size of the embroidery frame. The primary purpose of the above connection is to ensure that the embroidery frame is evenly stressed during movement and to ensure the stability of the embroidery frame structure. For example, for the connection points at the X-rail, it is necessary to consider that the right gear is evenly stressed during the Y-axis travel. For another example, for the connection points at the Y-front rail, it is necessary to consider that the left front gear is not prone to shaking, so a corresponding connection point is set at the left front gear. For another example, for the connection points at the Y-rear rail, it is necessary to consider the structural stability of the left gear of the embroidery frame during the X-axis travel, so a corresponding connection point is set at the rear gear close to the left gear.

[0034] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An embroidery frame structure for an embroidery machine, comprising a table (1), an embroidery frame (2), an X guide rail (3), a Y front guide rail (4), a Y rear guide rail (5), a plurality of X drive systems, and a plurality of Y drive systems; the X guide rail (3) is slidably connected to a left stop (21) and / or a right stop (22) of the embroidery frame (2), the Y front guide rail (4) is slidably connected to a front stop (23) of the embroidery frame (2), and the Y rear guide rail (5) is slidably connected to a rear stop (24) of the embroidery frame (2); the characteristic is that: The Y front guide rail (4) and the Y rear guide rail (5) are arranged on the table (1) in parallel along the X-axis direction, and drive the embroidery frame (2) to move along the Y-axis track (7) in the Y drive system; the X guide rail (3) is arranged above the table (1) along the Y-axis direction and is located above the Y front guide rail (4) and the Y rear guide rail (5); the X guide rail (3) drives the embroidery frame (2) to move along the X-axis track (6) in the X drive system; the X-axis track (6) is arranged in an upper space bounded by a motion plane of the embroidery frame (2), and the Y-axis track (7) is arranged in a lower space bounded by the motion plane of the embroidery frame (2).

2. The embroidery frame structure of an embroidery machine according to claim 1, characterized in that: The length of the X-axis track located above the two Y-axis tracks is greater than the distance between the two Y-axis tracks.

3. The embroidery frame structure of an embroidery machine according to claim 1, characterized in that: The Y-axis track (7) is arranged on a frame base (11) of the embroidery machine.

4. The embroidery frame structure of an embroidery machine according to claim 3, characterized in that: It also includes a suspension beam (9) straddling the top of the table; the X-axis track (6) is arranged at the bottom of the suspension beam (9).

5. The embroidery frame structure of an embroidery machine according to claim 4, characterized in that: The suspension beam (9) is fixed on the main beam (8) of the embroidery machine and / or fixed on the frame base (11) of the embroidery machine.

6. The embroidery frame structure of an embroidery machine according to claim 1, characterized in that: The X-drive system comprises an X-drive mechanism and an X-axis track (6); the X-drive mechanism comprises an X-pulley, an X-transmission member, and an X-drive motor; the X-pulley is fixedly connected to the X-guide rail, and the X-drive motor drives the X-transmission member to drive the X-pulley to move along the X-axis track (6).

7. The embroidery frame structure of an embroidery machine according to claim 1, characterized in that: The Y drive system comprises a Y drive mechanism and a Y-axis track (7); the Y drive mechanism comprises a Y pulley, a Y transmission member, and a Y drive motor; the front end of the Y pulley is fixedly connected to the Y front guide rail, and the rear end of the Y pulley is fixedly connected to the Y rear guide rail; the Y drive motor drives the transmission member to drive the Y pulley to move along the Y-axis track (7).

8. An embroidery machine, characterized in that: The invention comprises the embroidery frame structure of an embroidery machine as claimed in any one of claims 1 to 7, and a plurality of embroidery machine heads.

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