Bead feeding device and embroidery machine capable of embroidering multi-color and / or multi-specification beads

Abstract

The present invention discloses a bead feeding device and embroidery machine capable of embroidering beads of multiple colors and / or specifications. The device comprises a bead feeding mechanism, which includes at least two sets of bead feeders for conveying beads of different colors and / or specifications, and a cooperating bead conveying mechanism. A bead feeder switching structure is provided to drive and switch the corresponding bead feeder into a bead feeding station as needed, a bead feeder driver is provided to drive the bead feeder into the bead feeding station to deliver beads to the embroidery station, and the necessary fixing frame is provided. The device can be configured with corresponding embroidery process programs to achieve rapid and accurate conveyance of beads of different specifications and / or colors. It can also achieve continuous, long-distance supply of loose beads of different colors and / or specifications. The device has a simple structure and reliable performance, and is suitable for conveying loose beads of different specifications and / or colors.

Description

Technical Field

[0001] The invention relates to a bead feeding device capable of feeding beads of multiple colors and / or multiple specifications and an embroidery machine capable of embroidering beads of multiple colors and / or multiple specifications. Background Art

[0002] Embroidering jewelry with crystal-clear beads creates bright, three-dimensional, and aesthetically pleasing surfaces. This will become the development trend of bead embroidery, gradually replacing traditional bead embroidery and bead tube embroidery.

[0003] When embroidering beads, a bead guide rod is needed to position the beads and cooperate with the bead feeding structure so that beads of different specifications or colors can be arranged in an orderly manner.

[0004] Existing technologies are unable to effectively and stably transport multi-color and / or multi-specification beads, resulting in limited practical value for multi-color or multi-specification bead delivery devices. Consequently, existing bead embroidery systems cannot achieve orderly color or specification changes, resulting in the inability to achieve orderly color matching when changing specifications or colors. Changing specifications or colors in bead embroidery has always been a difficult problem for bead embroidery technicians. Summary of the Invention

[0005] The present invention aims to solve the existing problems of feeding beads of multiple colors or multiple specifications and provides a bead feeding device and an embroidery machine which have simple structure and reliable performance and can embroider beads of multiple colors or / and multiple specifications.

[0006] The technical solution of the present invention to solve the existing problems is: a bead feeding device capable of embroidering multi-color and / or multi-specification beads, comprising a bead guide rod, a bead feeding mechanism, and a bead conveying mechanism;

[0007] The bead conveying mechanism includes:

[0008] At least two groups of conveyors, each group of conveyors cooperates with a corresponding bead guide rod, each group of conveyors includes a carrier plate, at least one bead conveying wheel mounted on the carrier plate, the bead guide rod is wound around at least one conveying wheel or / and rotates between at least two conveying wheels, and the conveying wheels constitute the positioning of the bead guide rod and the conveying of beads on the bead guide rod;

[0009] Conveyor switching structure drives and switches the corresponding conveyor into the working position;

[0010] A conveying wheel driver, driving the conveying wheel on the conveyor entering the working position to rotate so as to convey beads;

[0011] The mounting frame includes a first mounting frame connected to the corresponding group of conveyors, and a second mounting frame for positioning, installing, and maintaining the relative matching position of the conveyor switching structure, the conveyor wheel driver, and the first mounting frame, wherein the first mounting frame and the second mounting frame can be relatively slidably matched;

[0012] The bead feeding mechanism comprises:

[0013] At least two sets of bead feeders, each set of bead feeders includes a bead feeding structure that receives beads from the output end of the suspended bead guide rod and transports the beads to the bead embroidery station;

[0014] The bead feeder switching structure drives and switches the corresponding bead feeder into the bead feeding station;

[0015] The bead feeding driver cooperates with the bead feeding structure of the bead feeding device entering the bead feeding station, drives the bead feeding structure entering the bead feeding station to receive beads from the output end of the suspended bead guide rod and transport the beads to the bead embroidery station;

[0016] The fixing frame includes a first fixing frame connected to and fixed to the corresponding group of bead feeders, and a second fixing frame for positioning, installing, and maintaining the relative matching position of the bead feeder driver, the bead feeder switching structure, and the first fixing frame, wherein the first fixing frame and the second fixing frame can be relatively slidably matched;

[0017] The at least two bead guide rods respectively pass through the conveyors of the corresponding group of bead conveying mechanisms, and the lower ends of the bead guide rods of the corresponding group are suspended at the bead receiving position above the bead feeding structure of the bead feeder of the corresponding group.

[0018] As a further improvement, the bead feeding structure includes a base plate, a bead clamp slidably arranged on the base plate, and a driving plate. The driving plate drives the bead clamp forward to feed beads and backward to receive beads. The bead clamp advances and clamps as the driving plate advances, and retreats and opens as the driving plate retreats. The base plate of the bead feeding structure of at least two groups of bead feeders is an integrated base plate, and the bead clamps and driving plates of the corresponding bead feeding structures are slidably arranged at corresponding positions of the integrated base plate.

[0019] As a further improvement, the bead feeding driver includes a first motor mounted on the second fixing frame, a rocker mounted on the first motor, and a sliding plug and a driving column are provided at the end of the rocker corresponding to the driving plate of the bead feeding structure to drive the driving plate to slide;

[0020] As a further improvement, a synchronous belt and pulley transmission assembly is provided between the rocker arm and the first motor; the rocker arm is rotatably arranged at a corresponding position on the second fixed frame, one end of the rocker arm is coaxially connected to a pulley, and the other end of the rocker arm is coordinated with the bead feeding structure of the bead feeder entering the bead feeding station, another pulley is connected to the motor shaft of the first motor, and a synchronous belt is provided between the two pulleys.

[0021] As a further improvement, the bead feeder switching structure is connected and installed between the second fixed frame and the first fixed frame; the bead feeder switching structure is a pneumatic rod, hydraulic rod, linear motor or screw assembly with a drive shaft that drives the corresponding bead feeder into the bead feeding station.

[0022] As a further improvement, a guiding slide rail assembly is provided between the first and second fixing frames of the bead feeder switching structure.

[0023] As a further improvement, it also includes a lifting mechanism connected to the second fixed frame, an intermediate connecting frame connecting the bead conveying mechanism and the bead feeding mechanism is provided between the second mounting frame and the second fixed frame, and the lifting mechanism is arranged on the intermediate connecting frame.

[0024] As a further improvement, the bead guide rod of each group of bead feeding structures is provided with a bead pressing structure for driving and pressing the beads on the bead guide rod to output.

[0025] As a further improvement, the bead pressing structure includes a fixed plate, a sliding frame that slides back and forth relative to the fixed plate, and a first driver that drives the sliding frame to slide back and forth. The fixed plate is installed at a corresponding position on the first fixed frame. At least one pair of mutually cooperating clamping wheels is provided between the sliding frame and the fixed plate. The pair of clamping wheels are arranged on both sides of the bead guide rod. One end of the mutually cooperating clamping wheels is rotatably installed on the fixed plate, and the other end is rotatably installed on the sliding frame. The rotation axes of the two ends of the corresponding pair of clamping wheels are not arranged concentrically. The clamping wheels deflect and clamp as the sliding frame slides in one direction to clamp and press the beads on the bead guide rod. The clamping wheels deflect and open as the sliding frame slides in the opposite direction.

[0026] As a further improvement, a slidable sliding member is further provided on the fixed plate, and one end of the mutually cooperating clamping wheels is rotatably mounted on the sliding member, and the other end is rotatably mounted on the sliding frame. The rotation axes of the two ends of the clamping wheels are not arranged concentrically. The clamping wheels deflect and clamp as the sliding frame slides in one direction and drive the sliding member to slide in one direction with a lag. The clamping wheels deflect and open as the sliding frame slides in the opposite direction and slide in the reverse direction with a lag.

[0027] As a further improvement, the fixed plate is provided with a guide groove for positioning and guiding the sliding member; and also includes a magnet for increasing the sliding resistance of the sliding member.

[0028] As a further improvement, a slide rail assembly is provided between the fixed plate and the sliding frame; a guide groove and a guide column for positioning and installing the clamping wheel are provided between the sliding frame and the corresponding end of the clamping wheel, and the corresponding end of the clamping wheel can be slidably and rotatably arranged through the cooperation of the guide column and the guide groove.

[0029] As a further improvement, the at least one pair of clamping wheels are symmetrically arranged.

[0030] As a further improvement, the clamping wheel is an eccentric wheel or a cam; at least the portion where the clamping wheel cooperates with the bead guide rod is arc-shaped or wheel-shaped.

[0031] As a further improvement, the sliding frame is provided with a rack or strip-shaped teeth, the driver is a driving motor or a power input shaft, and the driving motor or power input shaft is provided with a gear that cooperates with the rack or strip-shaped teeth; the sliding direction of the guide groove is perpendicular to the sliding direction of the sliding frame.

[0032] As a further improvement, the sliding frame is a U-shaped sliding frame, the fixed plate and the clamping wheel are arranged in the U-shaped groove of the U-shaped sliding frame; the guide groove is arranged on the sliding frame, and the guide column is arranged at the corresponding end of the clamping wheel.

[0033] As a further improvement, a second slide rail assembly is provided between the first and second mounting frames, and the conveyor switching structure is provided on the second mounting frame to drive the first mounting frame to slide so as to drive the corresponding conveyor to enter the working position.

[0034] As a further improvement, the conveyor switching structure includes a second motor mounted on a second mounting frame, a second screw rod connected to the second motor shaft, and a second sliding sleeve cooperating with the second screw rod, and the second sliding sleeve is arranged on the first mounting frame.

[0035] As a further improvement, each group of conveyors is provided with at least two conveying wheels, the corresponding bead guide rod passes through between at least two conveying wheels, and at least two conveying wheels constitute the positioning and clamping of the bead guide rod; the conveying wheel driver drives a conveying wheel of the conveyor entering the working position to rotate, and a transmission structure is provided between the at least two driving wheels.

[0036] As a further improvement, there are at least four conveying wheels, two of which constitute a pair of clamping wheels, the bead guide rod passes between the two conveying wheels constituting the clamping wheels, the bead guide rod passes around between the other conveying wheels or / and is wrapped around the other conveying wheels, and a transmission structure is provided between the at least four conveying wheels.

[0037] As a further improvement, the transmission structure is a gear and / or a belt pulley.

[0038] As a further improvement, the conveying wheel driver includes a third motor mounted on the second mounting frame, and the third motor is engaged with one of the conveying wheels by gear or belt transmission.

[0039] As a further improvement, a controller for controlling and coordinating each drive is also included.

[0040] An embroidery machine comprises a machine body and at least one machine head arranged on the machine body. One side or both sides of the at least one machine head are installed with a bead feeding device capable of embroidering beads of multiple colors and / or multiple specifications as described in any one of the above technical solutions or any combination of the solutions.

[0041] As a further improvement, the crossbeam is provided with a connecting frame for mounting and connecting the bead feeding mechanism and / or the bead conveying mechanism.

[0042] Compared to the prior art, the present invention utilizes a bead feeding mechanism that includes at least two sets of bead feeders to deliver beads of different colors and / or sizes, along with a matching bead conveying mechanism. A bead feeder switching mechanism is provided to drive and switch the corresponding bead feeder to the bead feeding station as needed, a bead feeder driver is provided to drive the bead feeder that has entered the bead feeding station to deliver beads to the bead embroidery station, and the necessary fixing brackets are provided. The beneficial effect of the present invention is that it can be configured according to the corresponding bead embroidery process program to achieve rapid and accurate delivery of beads of different sizes and / or colors. This allows for continuous, long-distance delivery of loose beads of different colors and / or sizes. The present invention has a simple structure and reliable performance, making it suitable for conveying loose beads of different sizes and / or colors. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 The present invention is a structural schematic diagram of a bead feeding device installed on an embroidery machine and coordinated with the machine head.

[0044] Figure 2 It is a structural schematic diagram of another perspective showing that the bead feeding device of the present invention is installed on an embroidery machine and cooperates with the machine head.

[0045] Figure 3 The present invention is a side view of the bead feeding device installed on the embroidery machine and matched with the machine head.

[0046] Figure 4-5 Schematic diagrams of the bead feeding device of the present invention from different perspectives.

[0047] Figure 6 This is a schematic diagram of the bead feeding device of the present invention with the first fixing frame of the bead feeding structure removed.

[0048] Figure 7 It is a side view of the bead feeding mechanism of the present invention with part of the first fixing frame removed.

[0049] Figure 8-10 Schematic diagrams of the bead feeding mechanism of the present invention from different perspectives with part of the first fixing frame removed.

[0050] Figure 11 A front view of the bead feeding mechanism of the present invention.

[0051] Figure 12 Schematic diagram of the bead pressing structure of the present invention.

[0052] Figure 13 It is a front view of the bead pressing structure of the present invention.

[0053] Figure 14 It is an exploded schematic diagram of the bead pressing structure of the present invention.

[0054] Figure 15 It is a side view of the bead conveying mechanism of the present invention.

[0055] Figure 16 It is a front view of the bead conveying mechanism of the present invention.

[0056] Figure 17-19 Schematic diagrams of the bead conveying mechanism of the present invention from different perspectives.

[0057] Figure 20 It is an exploded schematic diagram of the bead feeding structure of the present invention.

[0058] Figure 21 It is a schematic diagram of another example of the bead feeding structure of the present invention.

[0059] Figure 7 、 8 The beads in Figures 9, 15 are drawn individually, while the beads in the remaining figures are not drawn one by one and are marked with simple columnar symbols. DETAILED DESCRIPTION

[0060] See also Figure 1-21 A bead feeding device capable of embroidering multi-color and / or multi-size beads includes a bead guide rod 1, a bead conveying mechanism 200, and a bead feeding mechanism 100. The bead feeding device can be mounted on the machine head 21 or the crossbeam 3 of the machine body. The bead feeding device can be mounted on the machine head housing or the needle bar holder, with the specific mounting position and structure being sufficient to match the corresponding needle bar on the machine head.

[0061] The bead conveying mechanism 200 includes at least two groups of conveyors 201, a conveyor switching structure 210, a conveying wheel driver 220, and a mounting frame.

[0062] At least two groups of conveyors 201, each group of conveyors 201 cooperates with the corresponding bead guide rod 1, each group of conveyors 201 includes a carrier plate 202, at least one bead conveying wheel 203 installed on the carrier plate 202, the bead guide rod 1 is wrapped around at least one conveying wheel 203 or / and orbits between at least two conveying wheels 203, and the conveying wheel 203 constitutes the positioning of the bead guide rod 1 and the conveying of the beads on the bead guide rod 1.

[0063] That is, the bead guide rod 1 can be wound around one or more conveying wheels 203 , or pass around between two or more conveying wheels 203 , or be wound around two or more conveying wheels and pass around between two or more conveying wheels 203 .

[0064] The conveyor switching structure 210 drives and switches the corresponding conveyor 201 into the working position.

[0065] The conveying wheel driver 220 drives the conveying wheel 203 on the conveyor 201 that enters the working position to rotate so as to convey beads.

[0066] The mounting frame includes a first mounting frame 204 connected to the corresponding group of conveyors 201, and a second mounting frame 205 for positioning, installing and maintaining the relative matching position of the conveyor switching structure 210, the conveying wheel driver 220, and the first mounting frame 204. The first mounting frame 204 and the second mounting frame 205 can be relatively slidably matched.

[0067] A second slide rail assembly 206 is provided between the first and second mounting frames. The conveyor switching structure 210 is provided on the second mounting frame 205 to drive the first mounting frame 204 to slide and drive the corresponding conveyor 201 to enter the working position.

[0068] The conveyor switching structure 210 includes a second motor 211 mounted on the second mounting bracket 205, a second screw rod 212 connected to the shaft of the second motor 211, and a second sleeve 213 threadedly engaged with the second screw rod 212. The second sleeve 213 is disposed on the first mounting bracket 204. The conveyor switching structure 210 may also employ other existing structures to replace the second motor, second screw rod, and sleeve.

[0069] Each group of conveyors 201 is provided with at least two conveying wheels 203, and the corresponding bead guide rod 1 passes through at least two conveying wheels 203, and at least two conveying wheels 203 constitute the positioning and clamping of the bead guide rod 1; the conveying wheel driver 220 drives a conveying wheel 203 of the conveyor 201 entering the working position to rotate, and a transmission structure is provided between the at least two driving wheels.

[0070] There are at least four conveying wheels 203, two of which form a pair of pinch wheels. The bead guide rod 1 passes between the two conveying wheels 203 forming the pinch wheels, and the bead guide rod 1 orbits between and / or wraps around the other conveying wheels 203. A transmission structure is provided between the at least four conveying wheels 203. The transmission structure can be a gear or / and a belt pulley. The specific number of conveying wheels 203 is determined based on the specific situation to ensure stable positioning of the bead guide rod 1 for conveying beads 11.

[0071] In this embodiment, there are five conveying wheels 203, of which two conveying wheels 203 constitute a pair of clamping wheels, which are arranged on the bead guide rod 1 at the front of the bead conveying mechanism 200. The bead guide rod 1 passes between the two conveying wheels 203 constituting the clamping wheels, and the bead guide rod 1 bypasses between the other three conveying wheels 203 or / and is wrapped around the other three conveying wheels 203. Referring to the accompanying drawings, the bead guide rod 1 bypasses between the other three conveying wheels 203 in an S shape. Of course, the bead guide rod 1 can also adopt other bypassing, winding or bypassing and winding combinations.

[0072] The conveyor wheel driver 220 includes a third motor 221 mounted on the second mounting frame 205. The third motor 221 and one of the conveyor wheels 203 are engaged by gear or belt transmission. Multiple belts, pulleys, and multiple transmission gears can also be provided between the motor 221 and the conveyor wheel 203 to accommodate the space in the second mounting frame 205.

[0073] The bead feeding mechanism 100 capable of conveying beads of multiple colors or / and multiple specifications includes at least two sets of bead feeders 101, a bead feeder switching structure 104, a bead feeding driver 105, and a fixing frame.

[0074] At least two sets of bead feeders 101 are provided, each set of bead feeders 101 includes a bead feeding structure 130 for receiving beads from the output end of the suspended bead guide rod 1 and conveying the beads to the bead embroidery station.

[0075] The bead feeder switching structure 104 drives and switches the corresponding bead feeder 101 to enter the bead feeding station.

[0076] The bead feeding driver 105 cooperates with the bead feeding structure 130 of the bead feeder 101 entering the bead feeding station, drives the bead feeding structure 130 entering the bead feeding station to receive beads from the output end of the suspended bead guide rod 1 and transport the beads to the embroidery bead station.

[0077] The fixing frame includes a first fixing frame 106 connected and fixed to the corresponding group of bead feeders 101, and a second fixing frame 107 for positioning, installing and maintaining the relative matching positions of the bead feeder driver 105, the bead feeder switching structure 104 and the first fixing frame 106. The first fixing frame 106 and the second fixing frame 107 can be relatively slidably matched.

[0078] At least two bead guide rods 1 respectively pass through the corresponding group of conveyors 201 of the bead conveying mechanism 200. The lower ends of the corresponding group of bead guide rods 1 are suspended above the bead feeding structure 130 of the corresponding group of bead feeders 101 to receive beads, so as to form continuous bead feeding.

[0079] In order to facilitate the supply of beads of multiple colors and / or multiple specifications, a bead supply device 300 may be further included.

[0080] The bead supply device 300 comprises at least two sets of bead threading mechanisms 301 and a connecting frame 4 connecting the corresponding sets of bead threading mechanisms 301. The bead threading mechanisms 301 can adopt existing technical structures.

[0081] In this embodiment, the bead threading mechanism 301 includes a connecting base 302, a barrel 303 rotatably mounted on the connecting base 302, a barrel motor for driving the barrel 303, and a bead guide rod 1 engaged with the barrel 303. A hopper may be provided on the barrel 303. The multi-colored and / or multi-specification beads may be beads of different colors, outer diameters, heights, or shapes with embroidery holes, such as ordinary beads, tube beads, and bubble beads.

[0082] The positioning structure 310 of the bead guide rod 1 can be a conventional structure, specifically a structure that can realize the positioning of the bead guide rod. It is further preferred that the beads on the bead guide rod 1 can be transported.

[0083] In this embodiment, the positioning structure 310 of the bead guide rod 1 includes a mounting plate 311 and a roller 312 disposed on the mounting plate 311. The at least one roller 312 is configured as a drive wheel, which can be driven by a drive motor. In this embodiment, multiple rollers are provided, and a transmission structure is provided between the multiple rollers, that is, the multiple rollers are all configured as drive wheels. The bead guide rod 1 is wrapped around one or more rollers 312, or passes between multiple rollers, or is wrapped around multiple rollers and passes between multiple rollers.

[0084] Of course, the bead threading mechanism 301 is another solution (not shown in the figure). The upper end of the bead guide rod 1 is inserted into the barrel through the bead drop hole provided at the bottom of the barrel. A rotating paddle is provided in the barrel to drive the beads in the barrel to pass through the bead drop hole by chance. The positioning structure 310 of the bead guide rod 1 includes a mounting plate, at least two groups of clamping structures provided on the mounting plate to clamp the bead guide rod 1, and a power distribution device that drives the corresponding groups of clamping structures to clamp or open or close, and at least one group of clamping structures clamps the bead guide rod 1 during operation.

[0085] The positioning structure 310 of the bead guide rod 1 is located above and / or below the positioning structure 310 and is also provided with a first bead pressing structure 313 for driving and pressing the beads on the bead guide rod 1 to be transported to the output end, and a transmission structure can be set between the driving and pressing wheels.

[0086] The first bead pressing structure 313 of the bead guiding rod 1 includes at least two driving and pressing wheels 314, at least one of which is a driving wheel.

[0087] The connecting frame 4 includes a first connecting frame 4 connected to the bead threading mechanism 301 and a second connecting frame 4 connected to the first connecting frame 4 . The second connecting frame 4 is connected to the cross beam of the machine body.

[0088] At least two bead guide rods 1 each pass through a corresponding set of conveyors 201 of the bead conveying mechanism 200. The upper ends of the corresponding sets of bead guide rods 1 are connected to the corresponding set of bead threading mechanisms 301 of the bead supply device 300, cooperating with the barrel 303 of the corresponding threading mechanisms 301 to thread beads. The lower ends of the corresponding sets of bead guide rods 1 are suspended above the bead feeding structure 130 of the corresponding set of bead feeders 101, where they receive beads, facilitating continuous threading and delivery of loose beads. Referring to the accompanying drawings, in this embodiment, taking three corresponding sets of conveyors 201 and bead feeders 101 as an example, the bead supply device 300 is equipped with four sets of threading mechanisms 301, one of which is left vacant, while the other three sets correspond one-to-one with the conveyors 201 and bead feeders 101. The bead guide rods 1 are provided with a curved or spiral section 12 between the threading mechanisms 301 and the conveyors 201 to minimize bending of the bead guide rods 1 during movement of the conveyors 201 and bead feeders 101.

[0089] The bead feeding structure 130 includes a base plate 131, a bead clamp 132 slidably mounted on the base plate 131, and a drive plate 133. The drive plate 133 drives the bead clamp 132 forward to feed beads and backward to receive beads. The bead clamp 132 advances and clamps as the drive plate 133 advances, and retreats and expands as the drive plate 133 retreats. The base plates 131 of the bead feeding structures 130 of the at least two bead feeders 101 are integral. The bead clamps 132 and drive plates 133 of the corresponding bead feeding structures 130 are slidably mounted on corresponding portions of the integral base plate 131. Guide grooves 139 are provided at the interface between the base plate 131, the corresponding bead clamps 132, and the drive plate 133, to guide the bead clamps 132 and the drive plate 133.

[0090] A positioning mechanism 141 for positioning beads to be dropped is installed at the output end of at least one bead guide rod 1, below the bead pressing structure 120, and at a corresponding location on the base plate 131. The positioning mechanism 141 comprises a frame mounted on the base plate 131, two positioning blocks rotatably mounted eccentrically on the frame, and a positioning opening for positioning beads 11 on the bead guide rod 1 between the two positioning blocks. The two positioning blocks are eccentrically mounted to clamp and position the beads on the bead guide rod 1 to be dropped at the clamping opening of the bead clamp 132 under free gravity.

[0091] The bead clamp 132 and the driving plate 133 on the bead feeding structure 130 can adopt the existing technical structure. Figure 20The bead clamp 132 includes a pair of clamping arms 134 rotatably arranged on the driving plate 133, and the pair of clamping arms 134 are preferably eccentrically rotatably arranged on the driving plate 133; the pair of clamping arms 134 are provided with clamping openings for clamping beads; a cover plate 135 can be provided on the pair of clamping arms 134, and a deflection axis and an axial hole or groove 136 matching the deflection axis are provided between the cover plate 135 and the pair of clamping arms 134, so that the pair of clamping arms 134 can be driven to rotate around the rotation point on the driving plate 133 to form a clamping and opening action. The axial hole or groove 136 can be provided at the corresponding position of the pair of clamping arms 134, and the deflection axis can be provided on the cover plate 135. When the bead clamp 132 receives the beads from the bead taking station and moves forward with the driving plate 133, the pair of clamping arms 134 of the bead clamp 132 lags behind the driving plate 133 due to the inertia of the clamping arms 134 and the cover plate 135. The lagging cover plate 135 drives the pair of clamping arms 134 to produce a clamping action through the deflection axis and the axis hole or groove 136 to clamp the beads, and then moves forward with the driving plate 133 to deliver the beads to the embroidery station to wait for embroidery. After waiting for or after embroidering beads, when the bead clamp 132 retreats with the driving plate 133, the pair of clamping arms 134 of the bead clamp 132 lag behind the driving plate 133 due to the inertia of the clamping arms 134 and the cover plate 135. The lagging cover plate 135 drives the pair of clamping arms 134 to open through the deflection axis and the shaft hole or slot 136. After the opening action, the pair of clamping arms 134 retreat with the driving plate 133 to the bead retrieval station directly below the corresponding bead guide rod 1 to prepare for receiving beads. A magnetic body can be set at the bottom of the base plate 131 to attract the bead clamp 132, so as to increase the resistance between the cover plate 135 and the clamping arms 134 and the driving plate 133, further slowing down the hysteresis of the cover plate 134 and the pair of clamping arms 134, and ensuring the clamping and opening of the pair of clamping arms 134.

[0092] See also Figure 21 As an optimization, a pair of clamping arms 134 are provided with inclined grooves 137 that slide with guide posts 138 provided at corresponding positions on the driving plate 133. Each clamping arm 134 of the pair of clamping arms 134 is also provided with a straight groove 140 perpendicular to the bead feeding direction on the cover plate 135.

[0093] Of course, the bead clip 132 can adopt other existing structures (the structure of this embodiment is not shown in the figure).

[0094] For example, the pair of clamping arms 134 may be elastically connected to or directly integrated with the drive plate 133 in a normally open or normally closed configuration. If the pair of clamping arms 134 is normally open, the pair of clamping arms 134 are driven to clamp by colliding with the inner wall of the trumpet-shaped opening as the drive plate 133 advances; and they are released from the trumpet-shaped opening as the drive plate 134 retreats, thereby opening. If the pair of clamping arms 134 is normally closed, the pair of clamping arms 134 are driven to open by colliding with the conical opening as the drive plate retreats; and they are released from the conical opening as the drive plate 133 advances, thereby clamping. A guide slot 139 for positioning the drive plate 132 may be provided on the base plate 131. The trumpet-shaped opening or the conical opening may be provided on the base plate 131. Of course, a receiving slot with an open front end may be provided in the drive plate 133, where the front end is the end near the beading station and the end of the embroidery needle. A second driving plate that can slide relative to the driving plate 133 is provided in the accommodating groove, and a pair of clamping arms 134 can be elastically arranged on the second driving plate as a whole. A first conical inclined surface is provided between the second driving plate and the driving plate 133, and the second driving plate lags behind as the driving plate advances to control the pair of clamping arms 134 to produce a clamping action. A third conical inclined surface is also provided between the second driving plate and the driving plate 133, and the second driving plate lags behind as the driving plate retreats to control the pair of clamping arms 134 to produce an opening action.

[0095] The bead feeding driver 105 includes a first motor 111 installed on a second fixed frame 107, and a rocker arm 108 installed on the first motor 111. The end of the rocker arm 108 is provided with a sliding insert 109 and a driving column 110 corresponding to the driving plate 133 provided on the bead feeding structure 130, which cooperate to drive the driving plate 133 to slide. In this embodiment, the sliding insert is a U-shaped sliding insert, which is provided at the corresponding position of the driving plate 133, and the driving column 110 is provided at the corresponding position of the rocker arm 108. Of course, the sliding insert 109 and the driving column 110 can interchange positions.

[0096] A synchronous belt and pulley transmission assembly 112 is provided between the rocker arm 108 and the first motor 111; the rocker arm 108 is rotatably arranged at a corresponding position on the second fixed frame 107, one end of the rocker arm 108 is coaxially connected to a pulley, and the other end of the rocker arm 108 cooperates with the bead feeding structure 130 of the bead feeder 101 entering the bead feeding station, another pulley is connected to the motor shaft of the first motor 111, and a synchronous belt is provided between the two pulleys.

[0097] The bead feeder switching structure 104 is connected and installed between the second fixed frame 107 and the first fixed frame 106; the bead feeder switching structure 104 is a pneumatic rod, a hydraulic rod, a linear motor or a screw assembly with a drive shaft that drives the corresponding bead feeder 101 to enter the bead feeding station. In this embodiment, the second fixed frame 107 and the first fixed frame 106 are driven by a screw assembly 103 with a drive shaft. Figure 1-11The screw of the screw assembly 103 is connected to the drive shaft. The drive shaft can directly use a motor installed on the second fixed frame 107. The screw is provided with a sliding nut connected to the first fixed frame 106. The drive shaft rotates through the sliding nut to drive the first fixed frame 106 to drive the corresponding film feeder 101 into the bead feeding station.

[0098] A guide rail assembly 102 is provided between the first and second fixing frames 106 and 107 to ensure accurate, stable and smooth operation of the first and second fixing frames 106 and 107. The driving structure 104 can adopt a known publicly available structure.

[0099] It also includes a lifting mechanism 113 connected to the second fixed frame 107. The lifting mechanism 113 is used to lift the bead feeding mechanism 100 into the corresponding position when working, and can be separated from the corresponding position when not working to make room for other devices to use. The lifting mechanism 113 includes a lifting power device 114, a mounting seat 115 for fixing the lifting power device, and a guide rail assembly 116 arranged on the mounting seat. The lifting power device 114 can be a pneumatic rod, a hydraulic rod, a screw rod assembly or a linear motor of a driving motor, or other existing lifting devices. In this embodiment, a pneumatic rod is used, and the cylinder part of the pneumatic rod is installed on the mounting seat 115. The other end of the push rod of the pneumatic rod is connected to the second fixed frame 107. A connecting block can be provided on the second fixed frame 107 to connect the corresponding part of the push rod. The connecting block and the mounting seat are connected by a guide rail assembly 116 to keep the bead feeding mechanism 100 stably lifted or entering the working position. In this embodiment, the second fixed frame 107 of the bead feeding mechanism 100 and the second mounting frame 205 of the bead conveying mechanism 200 are connected to each other through the intermediate connecting frame 5. The cylinder part of the pneumatic rod is installed on the mounting seat 115, and the other end of the push rod of the pneumatic rod is connected to the intermediate connecting frame 5.

[0100] The bead guide rod 1 of each set of bead feeding structures 130 is provided with a bead pressing structure 120 for driving and pressing the beads on the bead guide rod 1. The upper end of the bead guide rod 1 of each set of bead feeding structures 130 can be connected to a corresponding bead threading mechanism or constitute a bead threading end of a corresponding bead threading mechanism.

[0101] The bead pressing structure 120 includes a fixed plate 121, a sliding frame 122 that slides back and forth relative to the fixed plate 121, and a first driver 123 that drives the sliding frame 122 to slide back and forth. The fixed plate 121 is mounted at a corresponding position on the first fixed frame 136. At least one pair of mutually cooperating clamping wheels 124 is provided between the sliding frame 122 and the fixed plate 121. The pair of clamping wheels 124 are arranged on both sides of the bead guide rod 1. One end of the mutually cooperating clamping wheels 124 is rotatably mounted on the fixed plate 121, and the other end is rotatably mounted on the sliding frame 122. The rotation axes of the two ends of the corresponding pair of clamping wheels 124 are not concentric. The clamping wheels 124 deflect and clamp as the sliding frame 122 slides in one direction. As the corresponding pair of clamping wheels 124 continues to deflect, the beads 11 on the bead guide rod 1 are pressed. The clamping wheels 124 deflect and open as the sliding frame 122 slides in the opposite direction.

[0102] Furthermore, in order to improve the driving and pressing effect, a slidable sliding member 125 is also provided on the fixed plate 121. The mutually cooperating clamping wheel 124 is rotatably mounted on the sliding member 125 at one end and rotatably mounted on the sliding frame 122 at the other end. The rotation axes of the two ends of the clamping wheel 124 are arranged non-concentrically. In this way, the clamping wheel 124 first deflects and clamps as the sliding frame 122 slides in one direction, and drives the sliding member 125 to slide in one direction with a lag, resulting in a significant displacement, thereby improving the bead pressing effect. The clamping wheel 124 deflects and opens as the sliding frame 122 slides in the opposite direction, and then slides in the opposite direction with a lag. The sliding member 125 can be a sliding plate or a sliding block. The fixed plate 121 is provided with a guide groove 126 for positioning and guiding the sliding member 125 to slide. In this embodiment, the clamping wheel 124 deflects and clamps as the sliding frame 122 slides downward, then drives the slider 125 to slide downward with a lag, forcing the beads on the bead guide rod 1 to slide toward the bead clamp of the bead feeding structure. The clamping wheel 124 deflects and opens as the sliding frame 122 slides in the opposite direction, then slides upward with a lag to the downward starting position, indicating that the bead pressing station continues with the next bead pressing.

[0103] The device also includes a magnet 127 that increases the sliding resistance of the slider 125. The magnet 127 can be directly mounted on the slider 125, adsorbing the fixed plate 121 to increase the resistance between the slider and the fixed plate 121, further slowing the sliding of the slider 125, ensuring that the clamping wheel 124 is clamped or opened first, and then drives the slider 125 to slide, so as to first clamp the beads on the bead guide rod 1 and then drive the beads, and the corresponding pair of clamping wheels is opened first, and then reset to the bead pressing position for the next bead pressing. In this embodiment, the magnet 127 is mounted on the back of the fixed plate 121, adsorbing the slider 125.

[0104] A slide rail assembly is provided between the fixed plate 121 and the sliding frame 122; a guide groove 1240 and a guide column 1241 for positioning and installing the clamping wheel 124 are provided between the sliding frame 122 and the corresponding end of the clamping wheel 124, and the corresponding end of the clamping wheel 124 can be slidably and rotatably set by cooperating with the guide groove 1240 through the guide column 1241; the sliding direction of the guide groove 1240 is perpendicular to the sliding direction of the sliding frame 122; the guide groove 1240 is set on the sliding frame 122; the guide column 1241 is set at the corresponding end of the clamping wheel 124.

[0105] The at least one pair of clamping wheels 124 are symmetrically arranged, and the symmetrical arrangement of the clamping wheels 124 helps maintain the stable positioning of the bead guide rod 1. The clamping wheels 124 are eccentric wheels or cams. At least the portion where the clamping wheels 124 mate with the bead guide rod 1 is arc-shaped or wheel-shaped. That is, the clamping wheels 124 can also be modified simple clamping wheels, such as a smooth arc or wheel-shaped portion where the clamping wheels mate with the bead guide rod 1, while the other portions not mating with the bead guide rod 1 can be configured in any other arbitrary shape.

[0106] The sliding frame 122 is provided with a rack or strip of teeth 129. The first driver 123 is a drive motor or a power input shaft, which is provided with a gear 128 that cooperates with the rack or strip of teeth 129. In this embodiment, the first driver 123 is a drive motor provided on the second fixed frame 107.

[0107] The sliding frame 122 is a U-shaped sliding frame 122 , and the fixing plate 121 , the clamping wheel 124 , and the sliding member 125 are disposed in a U-shaped groove of the U-shaped sliding frame 122 .

[0108] It also includes a controller for controlling and coordinating various drives such as various motors and cylinders. The controller can be set up independently or use the controller of the embroidery machine.

[0109] An embroidery machine includes a machine body 2 and at least one machine head 21 mounted on the machine body 2. A bead feeding device capable of conveying multi-color and / or multi-specification beads, as described in any one or any combination of the above-described embodiments, is mounted on one or both sides of the at least one machine head 21. The bead feeding device can be mounted on the machine head 21 or on the crossbeam 3 of the machine body. The bead feeding device can be mounted on the machine head housing or the needle bar holder, with the specific mounting position and structure being sufficient to mate with the corresponding needle bar on the machine head.

[0110] The bead feeding device can be fixedly mounted on one side of the corresponding machine head via a bracket. In this embodiment, the crossbeam 3 is provided with a connecting frame 4 for mounting and connecting the bead supply device 300, the bead feeding mechanism, and / or the bead conveying mechanism 200, and the bead feeding mechanism 100. The connecting frame 4 can be a continuous, integrated connecting frame or a discontinuous, intermediate connecting frame connected to the crossbeam 3. In this embodiment, the connecting frame 4 includes a third connecting frame 43 connected to the first connecting frame 41 of the bead threading mechanism 301 of the bead supply device 300, and a second connecting frame 42 connected to the first connecting frame 41. The second and third connecting frames 42, 43 are discontinuous connecting frames connected to the machine body crossbeam 3. The bead conveying mechanism 200 and the bead feeding mechanism 100 can be connected as a whole via the intermediate connecting frame 5. The mounting base 115 is connected to the third connecting frame 43, which is preferably connected to the crossbeam 3 via the third connecting frame 43.

Claims

1. A bead feeding device capable of embroidering beads of multiple colors and / or specifications, characterized by: The bead conveying mechanism includes a bead guide rod, a bead feeding mechanism, and a bead conveying mechanism; the bead conveying mechanism includes at least two groups of conveyors, each group of conveyors cooperates with a corresponding bead guide rod, each group of conveyors includes a carrier plate and at least one bead conveying wheel mounted on the carrier plate, the bead guide rod is wound around at least one conveying wheel or / and rotates between at least two or more conveying wheels, and the conveying wheels constitute the positioning of the bead guide rod and the conveying of beads on the bead guide rod; a conveyor switching structure drives the corresponding conveyor to switch to a working position; a conveying wheel driver, driving the conveying wheel on the conveyor entering the working position to rotate to convey beads; a mounting frame, comprising a first mounting frame connected to the corresponding group of conveyors, and a second mounting frame for positioning, installing, and maintaining the relative matching position of the conveyor switching structure, the conveying wheel driver, and the first mounting frame, wherein the first mounting frame and the second mounting frame can slide relative to each other; the conveyor switching structure comprises a second motor mounted on the second mounting frame, a second screw rod connected to the second motor shaft, and a second sliding sleeve threadedly matched with the second screw rod, wherein the second sliding sleeve is arranged on the first mounting frame; the bead feeding mechanism comprises at least two groups of bead feeders, each group of bead feeders comprises a bead feeding structure for receiving beads from the output end of the suspended bead guide rod and conveying the beads to the embroidery bead station; a bead feeder switching structure, driving the corresponding bead feeder to enter the bead feeding station; a bead feeding driver, cooperating with the bead feeding structure of the bead feeder entering the bead feeding station, driving the bead feeding structure entering the bead feeding station to receive beads from the output end of the suspended bead guide rod and convey the beads to the embroidery bead station; The fixing frame includes a first fixing frame connected to and fixed to the corresponding group of bead feeders, and a second fixing frame for positioning, installing and maintaining the relative matching position of the bead feeder driver, the bead feeder switching structure and the first fixing frame, and the first fixing frame can be relatively slidably matched with the second fixing frame; at least two bead guide rods respectively pass through the conveyors of the corresponding group of bead conveying mechanisms, and the lower ends of the bead guide rods of the corresponding groups are suspended at the bead receiving position above the bead feeding structure of the bead feeder of the corresponding group; the bead guide rods of each group of bead feeding structures are provided with a bead pressing structure for driving the beads on the bead guide rods to output.

2. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 1, characterized in that: The bead feeder switching structure is connected and installed between the second fixed frame and the first fixed frame; the bead feeder switching structure is a pneumatic rod, a hydraulic rod, a linear motor or a screw assembly with a drive shaft that drives the corresponding bead feeder to enter the bead feeding station.

3. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 1 or 2, characterized in that: A guiding slide rail assembly is provided between the first fixing frame and the second fixing frame of the bead feeder switching structure.

4. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 1, characterized in that: The bead pressing structure includes a fixed plate, a sliding frame that slides back and forth relative to the fixed plate, and a first driver that drives the sliding frame to slide back and forth. The fixed plate is installed at a corresponding position on the first fixed frame. At least a pair of mutually cooperating clamping wheels are provided between the sliding frame and the fixed plate. A pair of clamping wheels are arranged on both sides of the bead guide rod. One end of the mutually cooperating clamping wheels is rotatably installed on the fixed plate, and the other end is rotatably installed on the sliding frame. The rotation axes of the two ends of the corresponding clamping wheels are not concentrically arranged. The clamping wheels deflect and clamp as the sliding frame slides in one direction to clamp and drive the beads on the bead guide rod. The clamping wheels deflect and open as the sliding frame slides in the opposite direction.

5. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 4, characterized in that: The fixed plate is also provided with a slidable sliding member, and one end of the mutually cooperating clamping wheels is rotatably mounted on the sliding member, and the other end is rotatably mounted on the sliding frame. The rotation axes of the two ends of the clamping wheels are not arranged concentrically. The clamping wheels deflect and clamp as the sliding frame slides in one direction and drive the sliding member to slide in one direction with a lag. The clamping wheels deflect and open as the sliding frame slides in the opposite direction and slide in the reverse direction with a lag.

6. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 5, characterized in that: The fixing plate is provided with a guide groove for positioning and guiding the sliding member to slide; and also includes a magnet for increasing the sliding resistance of the sliding member.

7. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 4, 5 or 6, characterized in that: A slide rail assembly is provided between the fixed plate and the sliding frame; a guide groove and a guide column for positioning and installing the clamping wheel are provided between the sliding frame and the corresponding end of the clamping wheel, and the corresponding end of the clamping wheel can be slidably and rotatably arranged through the cooperation of the guide column and the guide groove.

8. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 4 or 5, characterized in that: At least one pair of clamping wheels is symmetrically arranged.

9. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 8, characterized in that: The clamping wheel is an eccentric wheel or a cam; at least the portion where the clamping wheel cooperates with the bead guide rod is in an arc shape or a wheel shape.

10. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 7, characterized in that: The sliding frame is provided with a rack or strip-shaped teeth, the driver is a driving motor or a power input shaft, and the driving motor or power input shaft is provided with a gear that cooperates with the rack or strip-shaped teeth; the sliding direction of the guide groove is perpendicular to the sliding direction of the sliding frame.

11. The bead feeding device capable of embroidering beads of multiple colors and / or specifications as claimed in claim 10, characterized in that: The sliding frame is a U-shaped sliding frame, the fixed plate and the clamping wheel are arranged in the U-shaped groove of the U-shaped sliding frame; the guide groove is arranged on the sliding frame, and the guide column is arranged at the corresponding end of the clamping wheel.

12. The bead feeding device capable of embroidering multi-color and / or multi-specification beads according to claim 1, characterized in that: A second slide rail assembly is provided between the first mounting frame and the second mounting frame, and the conveyor switching structure is provided on the second mounting frame to drive the first mounting frame to slide so as to drive and switch the corresponding conveyor into the working position.

13. The bead feeding device capable of embroidering beads of multiple colors and / or specifications as claimed in claim 12, characterized in that: Each group of conveyors is provided with at least two conveying wheels, and the corresponding bead guide rod passes through at least two conveying wheels, and at least two conveying wheels constitute the positioning and clamping of the bead guide rod; the conveying wheel driver drives a conveying wheel of the conveyor entering the working position to rotate, and a transmission structure is provided between the at least two conveying wheels.

14. The bead feeding device capable of embroidering beads of multiple colors and / or specifications according to claim 1 or 13, characterized in that: There are at least four conveying wheels, two of which form a pair of clamping wheels. The bead guide rod passes between the two conveying wheels that form the clamping wheels. The bead guide rod passes around between the conveying wheels other than the clamping wheels or / and is wrapped around the conveying wheels other than the clamping wheels. A transmission structure is provided between at least four conveying wheels.

15. The bead feeding device capable of embroidering beads of multiple colors and / or specifications as claimed in claim 14, characterized in that: The transmission structure is a gear and / or a belt pulley.

16. The bead feeding device capable of embroidering beads of multiple colors and / or specifications as claimed in claim 14, characterized in that: The conveying wheel driver includes a third motor mounted on the second mounting frame, and the third motor is engaged with one of the conveying wheels via a gear or belt transmission.

17. The bead feeding device capable of embroidering beads of multiple colors and / or specifications as claimed in claim 1, characterized in that: It also includes a controller that controls and coordinates each drive.

18. An embroidery machine comprising a machine body and at least one machine head disposed on the machine body, characterized in that: A bead feeding device capable of embroidering multi-color and / or multi-specification beads as described in any one of claims 1 to 17 is installed on one side or both sides of the at least one machine head.

19. The embroidery machine according to claim 18, characterized in that: A connecting frame for installing and connecting the bead supply device, the bead delivery mechanism and / or the bead conveying mechanism is provided on the crossbeam of the machine body.

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