A cap ring frame device for embroidery machine

Abstract

The utility model discloses a kind of cap ring frame devices for embroidery machine, including cap ring frame, cap ring frame is controlled to the first drive device of driving cap ring frame axial movement, the second drive device of driving cap ring frame rotation, the cap ring frame is the tubular structure of circular, axial load resistance device is installed in cap ring frame bottom, the axial load resistance device includes the connecting sheet of connecting cap ring frame, connecting sheet is connected second roller in cap ring frame axial one side, the other side is connected third roller, second roller and third roller clamping connecting sheet limit cap ring frame axial displacement, do not limit cap ring frame radial rotation. The utility model is driven by axial load resistance device to resist the reciprocating impact force generated by the first drive device driving cap ring frame axial movement, avoid cap ring frame axial shaking to influence embroidery quality.

Description

Technical Field

[0001] This utility model relates to the field of hat embroidery technology, and in particular to a hat frame device for an embroidery machine. Background Technology

[0002] Hat embroidery is a craft that involves embroidering patterns on the surface of hats. Its core component is the hatband frame, which conforms to the hat's shape. To achieve the embroidery function, this frame needs both axial movement and radial rotation capabilities. Traditional hatband frame devices use a roller axially engaging with an inner groove for front-to-back positioning. This design has significant drawbacks: over time, wear occurs on the roller's axial surface, increasing the clearance between the roller and the groove, leading to axial wobble in the hatband frame. This axial wobble directly affects the quality stability of the embroidery, causing issues such as pattern misalignment and uneven stitches. Furthermore, because the hatband frame needs to withstand significant axial loads during movement, the traditional structure's load-bearing capacity is insufficient, further exacerbating the device's axial instability. How to effectively improve the axial stability of the hatband frame while maintaining its rotational flexibility has become a pressing technical challenge in this field. Existing technologies urgently need improvement to address these issues. Utility Model Content

[0003] The purpose of this application is to provide a cap ring frame device for an embroidery machine, which has the advantages of effectively improving the axial stability of the cap ring frame device and maintaining rotational flexibility.

[0004] This application provides a cap ring frame device for an embroidery machine, including a cap ring frame controlled by a first driving device for axial movement and a second driving device for rotation. The cap ring frame is a circular tubular structure. An axial load-bearing device is installed at the bottom of the cap ring frame. The axial load-bearing device includes a flange connected to the cap ring frame. A second roller is connected to one axial side of the cap ring frame, and a third roller is connected to the other side. The second and third rollers clamp the flange, restricting the axial displacement of the cap ring frame but not restricting its radial rotation. This invention uses the axial load-bearing device to resist the reciprocating impact force generated by the first driving device driving the axial movement of the cap ring frame, preventing axial swaying of the cap ring frame from affecting the embroidery quality. Specifically, the second and third rollers clamp the flange, restricting the axial displacement of the cap ring frame. Since the second and third rollers are fixed in position relative to the axial direction of the cap ring frame, they can withstand a large axial load. Furthermore, the rolling contact between the surfaces of the second and third rollers and the flange does not restrict the radial rotation of the cap ring frame, improving the stability of the radial rotation of the cap ring frame.

[0005] The first driving device includes a first motor, one end of which is connected to a first pulley device via a drive shaft, and the other end of which drives a second pulley device via a transmission shaft. The first and second pulley devices are jointly connected to a first mounting plate, driving the first mounting plate to move back and forth along the axial direction of the cap ring frame. The first mounting plate is connected to a second motor via a motor bracket, and the second motor drives a third pulley device. The third belt of the third pulley device is connected to a first movable plate, which is connected to the second driving device. The first pulley device includes a first pulley connected to the first motor, which is connected to a second pulley via a first belt. The first belt is connected to a first slider, which engages with a first guide rail. The second pulley device includes a third pulley connected to the transmission shaft, which is connected to a fourth pulley via a second belt. The second belt is connected to a second slider, which engages with a second guide rail. The second guide rail, the second belt, the first belt, and the first guide rail are parallel to the axis of the cap ring frame. The first slider and the second slider are jointly connected to the first mounting plate. This first driving device synchronously drives the cap ring frame connected to the first mounting plate to move back and forth along the axial direction of the cap ring frame through the two pulley devices, the second and first pulley devices.

[0006] The second driving device includes a second moving plate connected to the first moving plate. The two ends of the second moving plate are respectively connected to the two ends of the pull rope through the pull rope connecting piece. The pull rope wraps around the outer circumference of the hat frame. The pull rope drives the hat frame to rotate by moving the second moving plate left and right.

[0007] The third pulley device includes a fifth pulley connected to the second motor, and the fifth pulley is connected to a sixth pulley via a third belt.

[0008] Both the second and third rollers are connected to mounting blocks via screws. The mounting blocks are installed on the connecting piece, which in turn connects to the first roller connected by the first connecting rod. The outer circumference of the first roller fits against the inner wall of the connecting cap ring frame. The connecting piece is a circular structure with a diameter smaller than the inner diameter of the cap ring frame. Multiple grooves along the edge of the circular structure are embedded to install multiple sets of mounting blocks, forming a clamping structure between the second and third rollers. These multiple clamping structures clamp the flange, improving the load-bearing performance of the axial load-bearing device.

[0009] The connecting piece connects to the clamping device that holds the first mounting plate. The clamping device includes two clamping components, connected on one side by a clamping block and on the other side by a second connecting rod. Each clamping component includes a clamping handle connected to the clamping piece. The clamping handle is connected to a locking component via a pull rod. The locking component, in conjunction with the clamping block, clamps and connects to the first mounting plate. This clamping device improves the ease of connecting the cap ring frame device to the first mounting plate; simply controlling the clamping handle is sufficient to achieve the connection between the locking component and the first mounting plate.

[0010] The locking assembly includes a first pin connecting locking plates on both sides of the clamping plate, one end of the two locking plates being connected to a pull rod via a second pin, and the other end being connected to a clamping roller via a first screw.

[0011] The first driving device for driving the axial movement of the cap ring frame and the second driving device for driving the rotation of the cap ring frame are both installed on the embroidery machine frame.

[0012] As can be seen from the above, the embroidery machine cap frame device and embroidery machine provided in this application restrict the axial displacement of the cap frame through the clamping structure of the second and third rollers on both sides of the flange, while allowing radial rotation. This solves the problem of axial wobbling caused by wear in traditional devices and has the advantages of effectively improving axial positioning stability and maintaining rotational flexibility. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of a cap frame device for an embroidery machine according to the present invention;

[0015] Figure 2 This is a partial three-dimensional structural diagram of a cap frame device for an embroidery machine according to the present invention;

[0016] Figure 3 This is a partial three-dimensional structural diagram of another side of the cap frame device for an embroidery machine according to the present invention;

[0017] Figure 4 This is a schematic diagram of the flange installation structure in this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of an embroidery machine according to the present invention. Detailed Implementation

[0019] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In existing technologies, hat embroidery requires the hat frame to have both axial movement and rotation capabilities. Traditional devices achieve axial positioning through the interaction of rollers and grooves. However, with prolonged use, roller wear leads to increased gaps and causes axial wobble. For example, during continuous production, frictional wear between the rollers and grooves gradually accumulates. When the gap exceeds 1 millimeter, it affects the embroidery accuracy, requiring machine shutdown and component replacement.

[0021] To address the aforementioned issues, designers found that the axial displacement limiting mechanism needed to avoid wear accumulation at a single contact point. By analyzing the axial load transmission path, they proposed setting a symmetrically distributed constraint structure at the bottom of the cap ring frame. After multiple experimental verifications, a clamping method using a flange and bidirectional rollers proved effective in both bearing axial loads for axial positioning and without interfering with rotational freedom.

[0022] Therefore, as Figures 1-5 This application discloses a cap ring frame device for an embroidery machine, including a cap ring frame 4. The cap ring frame 4 is controlled by a first driving device for axial movement and a second driving device for rotation. The cap ring frame 4 is a circular tubular structure. An axial load-bearing device is installed at the bottom of the cap ring frame. The axial load-bearing device includes a flange 38 connected to the cap ring frame 4. The flange 38 is connected to a second roller 39 on one axial side of the cap ring frame and a third roller 25 on the other side. The second roller 39 and the third roller 25 clamp the flange 38 to restrict the axial displacement of the cap ring frame, but do not restrict the radial rotation of the cap ring frame.

[0023] The flange refers to the annular structure fixedly connected to the bottom of the cap ring frame. This connection can be achieved through welding or bolting. Its outer diameter can be designed to be 10-20 mm larger than the cap ring frame body to provide sufficient clamping area. The second and third rollers are rolling components arranged on both sides of the flange's axial direction. These can be implemented using nylon rollers with deep groove ball bearings, with their axes perpendicular to the cap ring frame's axis. The axial load-bearing device is a constraint mechanism composed of the flange and the double rollers. When the cap ring frame is subjected to axial force, the flange transfers the load to the rollers on both sides, improving the cap ring frame's positioning accuracy and preventing wobbling caused by axial loads.

[0024] Compared with existing technologies, traditional solutions rely on line contact constraints between the rollers and the grooves. This solution uses face-to-face rolling contact between the rollers on both sides and the flange, which significantly extends the service life of the rollers.

[0025] Through the above technical solution, this application effectively solves the problem of axial wobble. In continuous operation testing, the axial displacement deviation is controlled within ±0.1 mm, which is 5 times more accurate than the traditional structure. The roller replacement cycle is extended from 100 days to more than 1000 days, reducing equipment maintenance costs by 85%, while ensuring the outline accuracy and stitch uniformity of the embroidery pattern.

[0026] As a preferred structural design, the first drive device includes a first motor 2. One end of the first motor 2 is connected to a first pulley device via a drive shaft, and the other end drives a second pulley device via a transmission shaft 19. The first and second pulley devices are jointly connected to a first mounting plate 15, driving the first mounting plate 15 to move back and forth along the axial direction of the cap frame. The first mounting plate 15 is connected to a second motor 3 via a motor bracket 18. The second motor 3 drives a third pulley device to move. The third belt 17 of the third pulley device is connected to a first moving plate 20, and the first moving plate 20 is connected to the second drive device.

[0027] The first pulley assembly includes a first pulley 6 connected to the first motor 2, the first pulley 6 connected to a second pulley 11 via a first belt 10, the first belt 10 connected to a first slider 8, and the first slider 8 engaging with a first guide rail 9. The second pulley assembly includes a third pulley 51 connected to a drive shaft 19, the third pulley 51 connected to a fourth pulley 53 via a second belt 50, the second belt 50 connected to a second slider 52, and the second slider 52 engaging with a second guide rail 54. The second guide rail 54, the second belt 50, the first belt 10, and the first guide rail 9 are parallel to the axis of the cap frame 4; the first slider 8 and the second slider 52 are jointly connected to a first mounting plate 15.

[0028] The first and second pulley devices are both transmission mechanisms directly driven by the motor output shaft. Specifically, they can use a combination of synchronous pulleys and belts to transmit power, adjusting the transmission ratio by the difference in pulley diameters. The second pulley device preferably uses a parallel transmission structure with a split drive shaft, specifically employing symmetrically arranged pulley groups to achieve bidirectional synchronous drive and ensure balanced force on the first mounting plate. The first mounting plate is a rigid support structure that bears the second motor and transmission components. It can be made of aluminum alloy sheet, and its guide rail structure restricts movement to only the axial direction. The third pulley device is the transmission mechanism connecting the second motor, converting rotational motion into linear displacement of the first moving plate via a third belt.

[0029] Specifically, when the first motor drive shaft rotates the first pulley assembly, the first belt, through the sliding engagement of the first slider and the first guide rail, pulls the first mounting plate back and forth. Simultaneously, the drive shaft transmits power to the second pulley assembly, and the second belt, through the engagement of the second slider and the second guide rail, pushes the first mounting plate back and forth synchronously. The synchronized movement of the two pulley assemblies enables precise axial displacement control of the first mounting plate. The second motor drives the third belt through the third pulley assembly, causing the first moving plate to move in a direction perpendicular to the axial direction, providing power input for subsequent rotational drive.

[0030] This design employs two independent pulley systems to synchronously control forward and backward movement, eliminating axial misalignment through the rigid guidance of the guide rail and slider. The pulley drive system avoids direct friction between the roller contact surfaces, and the adjustable belt tension compensates for wear gaps after long-term use, thereby maintaining axial drive stability.

[0031] Through the above technical solution, this application realizes that the cap ring frame and the first mounting plate can move precisely along the axial direction under the drive of the double pulley device, and the cooperation between the guide rail and the slider effectively suppresses lateral displacement.

[0032] As a preferred structural feature, the second driving device includes a second moving plate 13 connected to the first moving plate 20. The two ends of the second moving plate 13 are respectively connected to the two ends of the pull rope 14 through the pull rope connecting piece 12. The pull rope 14 wraps around the outer circumference of the hat frame 4. The pull rope 14 drives the hat frame 4 to rotate by moving the second moving plate 13 left and right.

[0033] The second movable plate refers to a plate-like structure rigidly connected to the first movable plate, which can be made of aluminum alloy and is used to transmit the driving force of the second motor to the pull rope. The pull rope connecting piece refers to a metal sheet-like component fixed to both ends of the second movable plate, which can be manufactured using a stamping process, and is used to form an adjustable tension connection between the two ends of the pull rope and the second movable plate. The pull rope is a flexible transmission component that surrounds the outer circumference of the cap ring frame, which can be made of steel wire rope or high-strength fiber rope, and drives rotation by changing the winding angle through left and right movement.

[0034] Specifically, when the second motor drives the third pulley device, the third belt drives the first moving plate to move, which in turn pushes the second moving plate to move synchronously. During the left and right movement of the second moving plate, the pull rope connecting plates at both ends pull the pull rope to move along the outer circumference of the cap ring frame. As the pull rope wraps around the cap ring frame, its alternating tightening on one side and loosening on the other side generates a rotational torque in the cap ring frame. The contact surface between the pull rope and the outer circumference of the cap ring frame transmits rotational power through friction, while the flexibility of the pull rope can adapt to different rotation angle requirements. The left and right travel range of the second moving plate is designed to be linearly related to the rotation angle of the cap ring frame, thereby achieving precise control of the rotation angle.

[0035] Compared to existing technologies, this solution employs a wraparound pull-cord drive, which provides a large contact area between the pull cord and the cap ring frame, resulting in uniform force distribution and avoiding localized wear. Simultaneously, the flexibility of the pull cord automatically compensates for assembly gaps, eliminating transmission instability caused by component machining errors. The pull-cord drive method transmits rotational power through uniformly distributed friction, reducing localized contact stress and extending the service life of transmission components. Furthermore, the flexibility of the pull cord makes the rotational drive process adaptive, effectively reducing assembly precision requirements and improving the stability of the cap ring frame's rotational motion.

[0036] As a preferred structural feature, the third pulley device includes a fifth pulley 7 connected to the second motor 3, and the fifth pulley 7 is connected to a sixth pulley 16 via a third belt 17.

[0037] The fifth pulley is the driving pulley connected to the output shaft of the second motor, used to transmit the rotational power of the second motor to the third belt. The third belt is the transmission component connecting the fifth and sixth pulleys, transmitting power through toothed meshing to prevent slippage. The sixth pulley is the driven pulley that cooperates with the fifth pulley; it can be a pulley of the same diameter as the fifth pulley, used to transmit power to the first moving plate, driving it to move vertically relative to the cap ring frame.

[0038] Specifically, after the second motor starts, it drives the fifth pulley to rotate, and the third belt forms a closed-loop transmission path between the fifth and sixth pulleys. When the fifth pulley rotates, the third belt drives the sixth pulley to rotate synchronously, thereby driving the first moving plate connected to the sixth pulley to move. Because the third belt and the pulleys use a meshing transmission method, no relative slippage occurs during power transmission, thus ensuring the stability of the drive.

[0039] Compared to existing technologies, which often employ gear or chain drive structures, these methods are prone to increased transmission backlash due to gear wear or chain slack, leading to wobbling of the bezel frame. This solution, however, utilizes a pulley and synchronous belt meshing transmission method, effectively reducing frictional losses between transmission components and minimizing displacement errors caused by accumulated backlash.

[0040] Through the above technical solution, this application can realize the axial drive of the cap ring frame with a simple pulley transmission structure, which reduces mechanical complexity and improves transmission accuracy, avoids axial clearance problems caused by component wear, and thus ensures the stability of the cap ring frame movement during long-term operation of the embroidery machine.

[0041] This application further proposes that the second roller 39 and the third roller 25 are both connected to the mounting block 26 by screws. The mounting block 26 is installed on the connecting piece 21. The connecting piece 21 is also connected to the first roller 22 connected by the first connecting rod 23. The outer periphery of the first roller 22 is attached to the inner wall of the connecting cap ring frame.

[0042] The screw-connecting mounting block refers to a threaded rod-like component that secures the roller to the mounting block. Specifically, a stainless steel screw and nut can be used for locking. The connecting plate is a plate-like structure used to integrate the mounting block; it can be a stamped metal sheet. Its function is to integrate the mounting block and the first connecting rod into a unified carrier, forming a multi-point supported rigid frame. The first roller is a cylindrical rolling component that contacts the inner wall of the cap ring frame. Its function is to improve the stability of the cap ring frame's free rotation around its axis by conforming its outer circumference to the inner wall, thus no longer undertaking the traditional functions of axial positioning and load bearing.

[0043] Specifically, the mounting block, via screws, forms an adjustable clamping assembly with the second and third rollers, which is fixed to the connecting piece. The first connecting rod mounted on the connecting piece houses the first roller, which is in close contact with the inner wall of the cap ring frame. When the flange is clamped bidirectionally by the second and third rollers, axial displacement is restricted. As the cap ring frame rotates, the first roller rolls along the inner wall, improving the stability of the cap ring frame's free rotation around its axis. Because the mounting block and connecting piece form a rigid connection, the overall stability of the roller assembly is enhanced.

[0044] Compared with existing technologies, existing solutions only achieve axial limiting through a single roller and groove, while this solution adopts a three-point support structure with a two-way roller clamping flange and an inner wall-fitting roller, forming constraints in both the axial and radial directions.

[0045] Through the above technical solution, this application effectively solves the problem of axial sway of the hat ring frame. By distributing the load through a multi-point rigid support structure, it reduces local wear on the roller surface, extends the service life of the device, and ensures the axial position of the hat ring frame is stable during rotation, thereby improving the quality of the embroidery.

[0046] This application further proposes that the connecting piece 21 is connected to a clamping device for clamping the first mounting plate 15. The clamping device includes two clamping components. One side of the two clamping components is connected by a clamping block 28, and the other side is connected by a second connecting rod 36. The clamping component includes a clamping handle 35 connected to the clamping piece 29. The clamping handle 35 is connected to a locking component through a pull rod 33. The locking component works with the clamping block 28 to clamp and connect the first mounting plate 15.

[0047] The clamping assembly refers to a mechanical structure consisting of a clamping plate, a clamping handle, and a locking assembly. Specifically, the clamping plate can be made of stamped metal sheet, and the clamping handle is connected to the clamping plate via a hinge, thereby transmitting the clamping force. The locking assembly is a mechanism for fixing the clamping state. Specifically, it can employ a structure where a pin and a locking plate engage. The locking plate is connected to a pull rod via the pin, and the pull rod drives the locking plate to rotate around the pin, thus controlling the contact state between the clamping roller and the first mounting plate. The clamping block is a rigid component connecting the two clamping assemblies. Specifically, it can be an aluminum alloy block with threaded holes, connected to the clamping assemblies via a screw, achieving balanced transmission of clamping force on both sides. The second connecting rod is a transverse rod connecting the two clamping assemblies. Specifically, it can be an adjustable-length threaded rod, allowing the spacing between the clamping assemblies to be changed by screwing.

[0048] Specifically, the clamping device uses two symmetrically distributed clamping components to create a bidirectional clamping force on the first mounting plate. When the clamping handle is operated, it drives the pull rod to rotate the locking plate in the locking assembly around the pin, causing the clamping roller to press against the surface of the first mounting plate. The clamping block and the second connecting rod together limit the displacement range of the clamping components, ensuring that no skewing occurs during clamping. This solution, through its bidirectional symmetrical clamping structure, achieves a more uniform distribution of clamping force, while utilizing the locking assembly to achieve a self-locking function, significantly reducing the risk of clamping failure due to vibration or wear, and enabling rapid installation.

[0049] This application further proposes a locking assembly including a first pin 31 connecting locking plates 32 on both sides of the clamping plate 29. One end of each locking plate 32 is connected to a pull rod 33 via a second pin 34, and the other end is connected to a clamping roller 30 via a first screw 59. Specifically, when the pull rod is subjected to external force, the second pin drives the locking plates to rotate around the first pin, causing the first screw at the other end of the locking plates to push the clamping roller towards the mounting plate. The clamping roller contacts the edge of the mounting plate through a groove, forming a stable clamping force.

[0050] As a preferred structural design, both the first drive device for driving the axial movement of the cap ring frame and the second drive device for driving the rotation of the cap ring frame are mounted on the embroidery machine frame 1.

[0051] The embroidery machine frame refers to the basic support structure that carries the various functional modules of the embroidery machine. It possesses sufficient rigidity and stability to withstand the dynamic loads of the moving parts. The first drive device is the power mechanism that drives the cap ring frame to reciprocate along the axial direction. Specifically, it can be implemented using a servo motor in conjunction with a synchronous belt drive system. By fixing the power source to the frame, vibration transmission during movement can be avoided. The second drive device is the transmission mechanism that drives the cap ring frame to rotate around its axis. Specifically, it can be implemented using a stepper motor in conjunction with a rope traction system. By fixing the rotary drive component to the frame, interference of rotational motion on axial positioning accuracy can be eliminated.

[0052] Through the above technical solution, this application effectively solves the positioning deviation problem caused by the vibration of the drive system during the axial movement of the cap ring frame. The rigid connection between the drive device and the frame eliminates the interference of motion inertia on the transmission accuracy, making the cap ring frame stable during axial displacement and rotation, thereby improving the positioning accuracy and consistency of the embroidery pattern.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cap frame device for an embroidery machine, comprising a cap frame (4), characterized in that: The cap frame (4) is controlled by a first driving device that drives the axial movement of the cap frame and a second driving device that drives the rotation of the cap frame. The cap frame (4) is a circular tubular structure. An axial load-bearing device is installed at the bottom of the cap frame. The axial load-bearing device includes a flange (38) connected to the cap frame (4). The flange (38) is connected to a second roller (39) on one side of the axial direction of the cap frame and to a third roller (25) on the other side. The second roller (39) and the third roller (25) clamp the flange (38) to restrict the axial displacement of the cap frame, but do not restrict the radial rotation of the cap frame. The first driving device... The device includes a first motor (2), one end of which is connected to a first pulley device via a drive shaft, and the other end of which drives a second pulley device via a transmission shaft (19). The first pulley device and the second pulley device are connected together to a first mounting plate (15), driving the first mounting plate (15) to move back and forth along the axial direction of the cap frame. The first mounting plate (15) is connected to a second motor (3) via a motor bracket (18). The second motor (3) drives a third pulley device to move. The third belt (17) of the third pulley device is connected to a first moving plate (20), and the first moving plate (20) is connected to a second drive device.

2. The cap frame device for an embroidery machine according to claim 1, characterized in that: The second driving device includes a second moving plate (13) connected to the first moving plate (20). The two ends of the second moving plate (13) are connected to the two ends of the pull rope (14) through the pull rope connecting piece (12). The pull rope (14) wraps around the outer circumference of the hat ring frame (4). The pull rope (14) drives the hat ring frame (4) to rotate by moving the second moving plate (13) left and right.

3. The cap frame device for an embroidery machine according to claim 1, characterized in that: The first pulley device includes a first pulley (6) connected to the first motor (2), the first pulley (6) is connected to a second pulley (11) via a first belt (10), the first belt (10) is connected to a first slider (8), and the first slider (8) is engaged with a first guide rail (9); the second pulley device includes a third pulley (51) connected to the drive shaft (19), the third pulley (51) is connected to a fourth pulley (53) via a second belt (50), the second belt (50) is connected to a second slider (52), and the second slider (52) is engaged with a second guide rail (54); the second guide rail (54), the second belt (50), the first belt (10), the first guide rail (9) are parallel to the axis of the cap frame (4); the first slider (8) and the second slider (52) are jointly connected to the first mounting plate (15).

4. The cap frame device for an embroidery machine according to claim 1, characterized in that: The third pulley device includes a fifth pulley (7) connected to the second motor (3), and the fifth pulley (7) is connected to the sixth pulley (16) via a third belt (17).

5. The cap frame device for an embroidery machine according to claim 1, characterized in that: The second roller (39) and the third roller (25) are both connected to the mounting block (26) by screws. The mounting block (26) is installed on the connecting piece (21). The connecting piece (21) is also connected to the first roller (22) connected by the first connecting rod (23). The outer periphery of the first roller (22) is attached to the inner wall of the connecting cap ring frame.

6. The cap frame device for an embroidery machine according to claim 5, characterized in that: The connecting piece (21) is connected to the clamping device that clamps the first mounting plate (15). The clamping device includes two clamping components. One side of the two clamping components is connected by a clamping block (28), and the other side is connected by a second connecting rod (36). The clamping component includes a clamping handle (35) that is connected to the clamping piece (29). The clamping handle (35) is connected to a locking component through a pull rod (33). The locking component works with the clamping block (28) to clamp and connect the first mounting plate (15).

7. The cap frame device for an embroidery machine according to claim 6, characterized in that: The locking assembly includes a first pin (31) connected to two locking plates (32) on both sides of the clamping plate (29). One end of the two locking plates (32) is connected to a pull rod (33) via a second pin (34), and the other end is connected to a clamping roller (30) via a first screw (59).

8. An embroidery machine using the method described in claim 1, characterized in that: The first driving device for driving the axial movement of the cap ring frame and the second driving device for driving the rotation of the cap ring frame are both installed on the embroidery machine frame (1).

Images