Tackle, tabouret assembly and embroidery machine

Abstract

The embodiment of the utility model generally relates to the field of embroidery machine frame driving, in particular to a tackle, an embroidery frame assembly and an embroidery machine. The tackle comprises a supporting plate assembly used for being connected with a tabouret, the supporting plate assembly comprises a first supporting plate and a second supporting plate, and the first supporting plate and the second supporting plate are each provided with a rolling piece used for being matched with a guide rail; the adjusting supporting structure is used for adjusting the relative position of the first supporting plate and the second supporting plate in the radial stress direction of the rolling pieces so as to adjust the center distance between the rolling pieces of the first supporting plate and the rolling pieces of the second supporting plate. The first supporting plate and the second supporting plate are supported in the radial stress direction of the rolling piece; and the fixing structure is used for fixedly connecting the two supporting plates. In this way, the movement stability of the tabouret can be improved, the embroidery pattern quality is ensured, and the service life of the tackle is prolonged.

Description

pulleys, embroidery frame components, and embroidery machines Technical Field

[0001] The embodiments disclosed herein generally relate to the field of embroidery machine frame drives, and more specifically to a trolley, an embroidery frame assembly, and an embroidery machine. Background Technology

[0002] When an embroidery machine is working, the embroidery frame needs to move back and forth along the X and Y axes of the working plane, and the pattern of the embroidered work is obtained by the movement of the embroidery frame along the X and Y axes. Existing embroidery frames achieve this movement along the X and Y axes by setting a pulley at their bottom.

[0003] In existing technologies, the trolley is slidably connected to the guide rail frame via rolling elements. At least two rolling elements are respectively spread between two opposing guide rail surfaces of the guide rail frame or clamped outside two opposing guide rail surfaces, allowing the trolley to move along the guide rail surfaces. The rolling elements corresponding to the two guide rail surfaces are respectively mounted on two support plates whose relative positions are adjustable. When the trolley and guide rail are assembled, the positions of the two support plates are adjusted using special tooling to clamp or spread the guide rail, and are fixed by fasteners passing through the two support plates. When the embroidery machine is working, the trolley drives the embroidery frame to reciprocate. The direction in which the fasteners connect the two support plates is perpendicular to the radial force direction of the rolling elements. This structure relies purely on the frictional force of the two mating surfaces to lock the relative positions of the two support plates. Under reciprocating impact conditions, the connection between the two support plates is prone to loosening, causing misalignment of the embroidery pattern. Summary of the Invention

[0004] Embodiments of this disclosure provide a pulley, an embroidery frame assembly, and an embroidery machine designed to address one or more of the problems described above and other potential problems.

[0005] According to a first aspect of this disclosure, a trolley is provided, characterized in that it comprises: a support plate assembly for connecting an embroidery frame, the support plate assembly including a first support plate and a second support plate, both the first support plate and the second support plate being provided with rolling elements for cooperating with a guide rail; an adjusting support structure for adjusting the relative positions of the first support plate and the second support plate by adjusting the relative positions of the first support plate and the second support plate along the radial force direction of the rolling elements, thereby adjusting the center distance between the rolling elements of the first support plate and the second support plate, and supporting the first support plate and the second support plate in the radial force direction of the rolling elements; and a fixing structure for fixing the first support plate and the second support plate together.

[0006] In some embodiments, both the first support plate and the second support plate are provided with support portions, and the adjustable support structure includes: a first support hole that passes through the support portion on the first support plate; and an adjustable support member that passes through the first support hole and acts on the support portion on the second support plate.

[0007] In some embodiments, the first support hole is provided with an internal thread, the adjusting support member is provided with an external thread that matches the internal thread, the support portion of the second support plate is provided with an abutment surface, and the adjusting support member passes through the first support hole and abuts against the abutment surface.

[0008] In some embodiments, the adjusting support structure further includes a second support hole with an internal thread, the second support hole being disposed in the support portion of the second support plate; and the adjusting support member has an external thread that matches the internal thread, the adjusting support member passing through the first support hole and being screwed into the second support hole.

[0009] In some embodiments, both the first support plate and the second support plate are provided with fixing portions, and the fixing structure includes: a first fixing hole provided in the fixing portion of the first support plate; a second fixing hole provided in the fixing portion of the second support plate; and a fixing member passing through the first fixing hole and the second fixing hole to connect the first support plate and the second support plate.

[0010] In some embodiments, the fixing part is provided with contact surfaces for mutual contact, and the first fixing hole and the second fixing hole are respectively provided on the contact surfaces of the corresponding fixing parts.

[0011] In some embodiments, the first support plate and / or the second support plate are connected to the embroidery frame.

[0012] In some embodiments, the first support plate and the second support plate are integrally formed with a fixed shaft for mounting the rolling element.

[0013] According to a second aspect of this disclosure, an embroidery frame assembly is provided, including an embroidery frame, a guide rail, and the trolley described in the first aspect above, wherein the guide rail includes two oppositely disposed guide rail surfaces; and the rolling elements of the first support plate and the second support plate are located between the two guide rail surfaces and respectively cooperate with their corresponding guide rail surfaces.

[0014] According to a third aspect of this disclosure, an embroidery frame assembly is provided, including an embroidery frame, a guide rail, and the trolley described in the first aspect above, wherein the guide rail includes two guide rail surfaces disposed opposite to each other; and the rolling elements of the first support plate and the second support plate are located outside the two guide rail surfaces and respectively cooperate with their corresponding guide rail surfaces.

[0015] According to a fourth aspect of this disclosure, an embroidery machine is provided, comprising the pulley described in the first aspect above.

[0016] According to a fifth aspect of this disclosure, an embroidery machine is provided, including the embroidery frame assembly described in the second or third aspect above. Attached Figure Description

[0017] The above and other objects, features, and advantages of embodiments of the present disclosure will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated in the drawings by way of example and not limitation.

[0018] Figure 1 shows a schematic diagram of the structure of a trolley according to an embodiment of the present disclosure.

[0019] Figure 2 shows a schematic diagram of the adjustment of the first support plate and the second support plate according to an embodiment of the present disclosure.

[0020] Figure 3 shows a schematic diagram of the adjustable support structure according to an embodiment of the present disclosure.

[0021] Figure 4 shows a schematic diagram of a fixing structure for fixing a first support plate and a second support plate according to an embodiment of the present disclosure.

[0022] Figure 5 shows a schematic diagram of the structure of the fixing part according to an embodiment of the present disclosure.

[0023] Figure 6 shows a schematic diagram of the installation of the rolling element according to an embodiment of the present disclosure.

[0024] Figure 7 shows a partial structural diagram of an embroidery frame assembly according to an embodiment of the present disclosure.

[0025] Figure 8 shows a schematic diagram of two ways of assembling the trolley and the guide rail according to embodiments of the present disclosure.

[0026] In the various figures, the same or corresponding reference numerals indicate the same or corresponding parts. Detailed Implementation

[0027] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0028] The term "comprising" and its variations as used herein signify an open-ended inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". Terms such as "upper", "lower", "front", and "rear", indicating placement or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are used only for the purpose of describing the principles of this disclosure, and are not intended to indicate or imply that the elements referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting this disclosure.

[0029] As mentioned earlier, the embroidery frame of the embroidery machine is slidably connected to a trolley and a guide rail. When the embroidery frame moves, the trolley bears the weight of the frame and the dynamic load generated by the movement. The radial load on the trolley's rolling elements may cause a change in the center distance between the rolling elements located between or on both sides of the guide rail surfaces, resulting in wobbling or offset of the trolley during movement. This leads to instability in the moving part of the embroidery frame, affecting the embroidery quality. Simultaneously, this unstable force may also increase the friction between the guide rail and the trolley, further accelerating wear.

[0030] In response to this, according to the embodiments of this disclosure, a trolley is provided. The adjustable support structure of the trolley can adjust the center distance of the trolley rolling parts during the assembly of the embroidery frame without relying on external tooling. It can also form support in the radial force direction of the rolling parts when the embroidery frame moves, thereby improving the stability of the embroidery frame movement and extending the service life of the trolley.

[0031] Figure 1 shows a schematic diagram of the trolley according to an embodiment of the present disclosure. As shown in Figure 1, the trolley 10 may include a support plate assembly 101 for connecting the embroidery frame. The support plate assembly typically includes a plate-like structure with rolling elements. The plate-like structure is fixed to the embroidery frame on one hand and slidably connected to a guide rail on the other hand through the rolling elements thereon. The guide rail 20 may be a protruding structure arranged along the moving direction of the embroidery frame, which includes two mutually parallel guide rail surfaces. The support plate assembly 101 may include two support plates with similar structures. For example, the support plate assembly 101 may include a first support plate 111 and a second support plate 112. Both the first support plate and the second support plate are provided with rolling elements 113 for cooperating with the guide rail 20. The trolley 10 also includes an adjusting support structure 102 for adjusting the relative position of the first support plate 111 and the second support plate 112. The two support plates of the trolley 10 correspond to one guide rail surface of the guide rail 20, respectively. By adjusting the support structure 102, the relative positions of the first and second support plates can be changed, thereby adjusting the center distance of the rolling elements on the first and second support plates, so that the rolling elements on the first and second support plates respectively mate with the corresponding guide rail surfaces. In one or more embodiments of this disclosure, the trolley also includes a fixing structure 103 for fixing the first support plate 111 and the second support plate 112. During embroidery frame assembly, the relative positions of the first support plate 111 and the second support plate 112 can be adjusted by adjusting the support structure 102. After adjustment, the first support plate 111 and the second support plate 112 are fixedly connected by the fixing structure 103, so that the rolling elements of the trolley can remain clamped to the guide rail or spread out within the guide rail. When the embroidery frame moves along the guide rail, the adjusting support structure 102 can also support the first support plate 111 and the second support plate 112 in the radial force direction of the rolling element, so as to maintain the relative position of the first support plate 111 and the second support plate 112, so that the rolling element is subjected to uniform and stable force when moving along the guide rail.

[0032] In one or more embodiments of this disclosure, two support plates can be slidably connected to the guide rail by being spread apart between two guide rail surfaces by their rolling elements. The rolling elements of the two support plates can be located between two parallel guide rail surfaces, respectively contacting and engaging with one of the guide rail surfaces, and rolling along the corresponding guide rail surface. In another one or more embodiments of this disclosure, the two support plates can also be connected to the guide rail by being clamped outside the two guide rail surfaces by their rolling elements. The rolling elements of the two support plates can respectively contact and engage with one of two opposing guide rail surfaces, and roll along the corresponding guide rail surface. Figure 2 shows a schematic diagram of the adjustment of the first support plate and the second support plate according to an embodiment of this disclosure. As shown in Figure 2, the adjusting support structure 102 can act on one or both of the first support plate or the second support plate, causing the first support plate 111 and the second support plate 112 to move away from each other along the adjustment direction, thereby increasing the center distance between the rolling elements on the first support plate and the rolling elements on the second support plate, and thus enabling the rolling elements of the two support plates to be spread apart between the two oppositely arranged guide rail surfaces of the guide rail. Alternatively, the adjusting support structure 102 can act on one or both of the first support plate 111 and the second support plate 112, allowing the first and second support plates to move closer to each other along the adjusting direction. This reduces the center distance between the rolling elements on the first and second support plates, and consequently, the rolling elements of the two support plates can be clamped outside the two back-to-back guides. Therefore, the adjusting direction of the first and second support plates, which is also the direction in which the rolling elements clamp the guide rail or spread out within the guide rail, is also the radial force direction when the rolling elements roll along the corresponding guide rail surface. This is also the direction in which the adjusting support structure 102 adjusts and supports the first support plate 111 and the second support plate 112.

[0033] Figure 3 shows a schematic diagram of the adjustable support structure according to an embodiment of the present disclosure. As shown in Figure 3, the rolling elements of the first support plate 111 and the second support plate 112 are both disposed on the same side near the end of the first support plate 111 and the second support plate 112, and the ends of the first support plate 111 and the second support plate 112 away from the guide rail serve as their respective support portions. In one or more embodiments of the present disclosure, the adjustable support structure 102 includes a first support hole 121 on the support portion 123 of the first support plate 111, and also includes an adjusting support member 122 that passes through the first support hole 121 and acts on the support portion 123 of the second support plate 112. It is understood that in one or more embodiments of the present disclosure, the location of the first support hole 121 and the target of the adjusting support member 122 can be interchanged, that is, the first support hole 121 can also be disposed through the support portion 1121 of the second support plate 112, and the adjusting support member 122 can also be disposed after the first support hole 121 of the second support plate 112 and act on the support portion 123 of the first support plate 111.

[0034] In one or more embodiments of this disclosure, the inner wall of the first support hole 121 may be provided with an internal thread, and correspondingly, the outer wall of the adjusting support 122 may be provided with an external thread that matches the internal thread. In this way, the adjusting support 122 can be threadedly connected to the first support hole 121 and fixed in the first support hole 121. As shown in FIG3, in one or more embodiments of this disclosure, on the support portion 123 opposite to the first support hole 121, the position corresponding to the first support hole 121 is an abutment surface that can block the adjusting support from passing through. After the adjusting support 122 passes through the first support hole 121, it can act on the corresponding support portion by abutting to push the second support plate 112 where the support portion 123 is located to move, thereby adjusting the first support plate 111 and the second support plate 112 to a suitable relative position, thereby clamping the guide rail or spreading it between the two guide rail surfaces of the guide rail. In one or more embodiments of this disclosure, a second support hole (not shown in the figure) is provided on the support portion 123 opposite to the first support hole 121 at the position corresponding to the first support hole 121. The inner wall of the second support hole is provided with an internal thread that matches the external thread of the support adjustment member. After the adjustment support member 122 passes through the first support hole 121, it can be threadedly connected to the second support hole of the support portion 123. By rotating the support adjustment member 122, the second support plate 112 and the first support plate 111 can be moved closer or further away from each other, thereby adjusting the first support plate 111 and the second support plate 112 to a suitable relative position, thereby clamping the guide rail or spreading it between the two guide rail surfaces of the guide rail.

[0035] Figure 4 shows a schematic diagram of a fixing structure for fixing a first support plate and a second support plate according to an embodiment of the present disclosure. As shown in Figure 4, in one or more embodiments of the present disclosure, the first support plate 111 and the second support plate 112 are each provided with a fixing part. The fixing structure 103 may include a first fixing hole 131 provided in the fixing part 114 of the first support plate 111, a second fixing hole 132 provided in the fixing part 114 of the second support plate 112, and a fixing member 133 passing through the first fixing hole and the second fixing hole to connect the two support plates. In one or more embodiments of the present disclosure, the fixing member 133 may include, but is not limited to, a screw, bolt, or other structure used for connection, which cooperates with a nut or threaded hole to achieve fixing. In one or more embodiments of this disclosure, to accommodate changes in the position of the first support plate and the second support plate, the first fixing hole 131 and the second fixing hole 132 may have different diameters. For example, the size of one fixing hole (e.g., the second fixing hole 132) matches the outer diameter of the fixing member 133, while the diameter of the other fixing hole (e.g., the first fixing hole 131) may be larger than the outer diameter of the fixing member 133, allowing the fixing member 133 passing through the second fixing hole 132 to move within the first fixing hole 131 as the position of the second support plate changes. In one or more embodiments of this disclosure, the first fixing hole and the second fixing hole may also have different shapes. For example, the shape and size of one fixing hole (e.g., the second fixing hole 132) match the cross-section of the fixing member 133, while the other fixing hole (e.g., the first fixing hole 131) may be a strip-shaped hole or an elliptical hole, allowing the fixing member 133 passing through the second fixing hole 132 to move within the first fixing hole 131 as the position of the second support plate changes.

[0036] In one or more embodiments of this disclosure, the first support plate 111 may be a U-shaped structure, with rolling elements of the first support plate 111 disposed at the plate ends extending from both sides of the first support plate 111, and the space in the middle portion of the first support plate 111 serving as the receiving space for the second support plate 112. Figure 5 shows a schematic diagram of the structure of the fixing part according to an embodiment of this disclosure. As shown in Figure 5, in order to facilitate the sliding and fixing of the first support plate and the second support plate, in one or more embodiments of this disclosure, the fixing part 114 of the first support plate 111 includes a stepped plate structure at the top of the space in the middle part of the first support plate 111. The thickness of the plate structure is less than the thickness of the plate body of the first support plate 111, and the thickness of the second support plate 112 is also less than the thickness of the plate body of the first support plate 111. In particular, the sum of the thickness of the plate structure and the thickness of the plate body of the second support plate can be equal to the thickness of the plate body of the first support plate, so that the second support plate can slide in the groove structure formed by the accommodating space between the plate structure and the first support plate. In this way, the surface of the plate structure facing the second support plate is the contact surface 1141 of its fixing part, and the surface of the second support plate facing the plate structure of the first support plate is the contact surface 1141 of its fixing part. The first support plate 111 and the second support plate 112 are attached to each other through the contact surfaces, and their relative positions are adjusted by adjusting the support structure 102. Fixing holes on the first support plate 111 and the second support plate 112 are respectively located on their respective contact surfaces and penetrate the corresponding plates, so as to facilitate fixing after the positions of the first support plate and the second support plate are adjusted.

[0037] Figure 6 shows a schematic diagram of the installation of the rolling element according to an embodiment of the present disclosure. As shown in Figure 6, in one or more embodiments of the present disclosure, in order to improve the motion stability and strength of the trolley, one or more of the first support plate and the second support plate may be integrally formed with a fixed shaft 115 for mounting the rolling element.

[0038] In some embodiments, the trolley 10 can be applied to the embroidery frame assembly 200 of an embroidery machine. To more clearly describe the application of the trolley 10 in the embroidery frame assembly 200, FIG7 shows a structural diagram of a portion of the embroidery frame assembly 200 including the trolley 10 according to an embodiment of the present disclosure. As shown in FIG7, the embroidery frame assembly 200 includes an embroidery frame 20, a guide rail 30, and a trolley 10. In one or more embodiments of the present disclosure, the embroidery frame 20 can be fixed by any one or more of a first support plate and a second support plate (e.g., the first support plate 111). The rolling elements of the two support plates achieve a sliding connection with the guide rail by clamping the guide rail or opening within the guide rail. FIG8 shows a schematic diagram of two ways of cooperating the trolley and the guide rail according to an embodiment of the present disclosure. FIG8(a) is a schematic diagram of the support plate assembly 101 being connected to the guide rail 30 by the rolling elements opening within the guide rail 30. As shown in FIG8(a), the guide rail 30 includes two opposing guide rail surfaces (301, 302), and the guide rail surfaces 301 and 302 are parallel to each other. When assembling the embroidery frame, firstly, align the centers of the rolling elements of the first and second support plate assemblies on a single line to facilitate placing all the rolling elements of the support plate assembly between the two guide surfaces (301, 302) of the guide rail 30. Then, adjust the position between the first support rod 111 and the second support plate 112 by adjusting the support structure, causing the two support plates to move further apart. This increases the center distance between the rolling elements on the support plates. The rolling elements of the first support plate 111 contact and engage with the guide surface 302 to roll along the guide surface 302, while the rolling elements of the second support plate 112 contact and engage with the guide surface 301 to roll along the guide surface 301. Finally, fix the first and second support plates with fasteners to maintain the center distance between the rolling elements on the two support plates, ensuring that the rolling elements of the support assembly remain in an open state within the guide rail 30. As shown in Figure 8(b), the guide rail 30 includes two opposing guide surfaces (301', 302'), which are parallel to each other. When assembling the embroidery frame, firstly, adjust the center distance between the rolling elements of the first and second support plate assemblies to their maximum, facilitating the placement of the rolling elements of the two support plates outside the two guide rail surfaces (301', 302') of the guide rail 30. Then, adjust the position between the first support rod 111 and the second support plate 112 by adjusting the support structure, bringing the two support plates closer together. This correspondingly reduces the center distance between the rolling elements on the support plates. The rolling elements of the first support plate 111 contact and engage with the guide rail surface 301' to roll along it, and the rolling elements of the second support plate 112 contact and engage with the guide rail surface 302' to roll along it. Finally, fix the first and second support plates with fasteners to maintain the center distance between the rolling elements on the two support plates, ensuring that the rolling elements of the support assemblies are held clamped outside the guide rail 30.

[0039] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A pulley (10), characterized in that, include: A support plate assembly (101) is used to connect the embroidery frame. The support plate assembly includes a first support plate (111) and a second support plate (112). Both the first support plate and the second support plate are provided with rolling elements (113) for cooperating with the guide rail. An adjusting support structure (102) is used to adjust the relative position of the first support plate and the second support plate by adjusting the rolling elements in the radial force direction of the rolling elements, so as to adjust the center distance between the rolling elements of the first support plate and the rolling elements of the second support plate, and to support the first support plate and the second support plate in the radial force direction of the rolling elements. A fixing structure (103) is used to fix the first support plate and the second support plate together.

2. The pulley according to claim 1, characterized in that, Both the first support plate (111) and the second support plate (112) are provided with support portions, and the adjustable support structure (102) includes: a first support hole (121) that passes through the support portion (123) on the first support plate (111); and an adjustable support member (122) that passes through the first support hole (121) and acts on the support portion (123) on the second support plate (112).

3. The pulley according to claim 2, characterized in that, The first support hole (121) is provided with an internal thread, the adjusting support (122) is provided with an external thread that matches the internal thread, the support part (123) of the second support plate is provided with an abutting surface, and the adjusting support (122) passes through the first support hole (121) and abuts against the abutting surface.

4. The pulley according to claim 2, characterized in that, The adjusting support structure further includes a second support hole with an internal thread, the second support hole being located in the support portion (123) of the second support plate; and the adjusting support member (122) is provided with an external thread that matches the internal thread, the adjusting support member (122) passing through the first support hole (121) and being screwed to the second support hole.

5. The pulley according to claim 1, characterized in that: Both the first support plate (111) and the second support plate (112) are provided with a fixing part (114), and the fixing structure (103) includes: a first fixing hole (131) provided in the fixing part (114) of the first support plate (111); a second fixing hole (132) provided in the fixing part (114) of the second support plate (112); and a fastener (133) passing through the first fixing hole (131) and the second fixing hole (132) to connect the first support plate (111) and the second support plate (112).

6. A pulley according to claim 5, characterized in that, The fixing part (114) is provided with a contact surface (1141) for mutual contact, and the first fixing hole and the second fixing hole are respectively provided on the contact surface (1141) of the corresponding fixing part.

7. The pulley according to claim 1, characterized in that: The first support plate and / or the second support plate are connected to the embroidery frame.

8. The pulley according to any one of claims 1-7, characterized in that: The first support plate and the second support plate are integrally formed with a fixed shaft (115) for mounting the rolling element (113).

9. An embroidery frame assembly (200), characterized in that, It includes: an embroidery frame, a guide rail, and a trolley according to any one of claims 1-8, wherein the guide rail includes two oppositely arranged guide rail surfaces; and the rolling element of the first support plate and the rolling element of the second support plate are located between the two guide rail surfaces and respectively cooperate with their corresponding guide rail surfaces.

10. An embroidery frame assembly, characterized in that, It includes: an embroidery frame, a guide rail, and a trolley according to any one of claims 1-8, wherein the guide rail includes two guide rail surfaces arranged in opposite directions; and the rolling elements of the first support plate and the second support plate are located outside the two guide rail surfaces and respectively cooperate with their corresponding guide rail surfaces.

11. An embroidery machine, characterized in that, Includes the pulley according to any one of claims 1-8.

12. An embroidery machine, characterized in that, Includes the embroidery frame assembly according to any one of claims 9-10.

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