Embroidery machine head

Abstract

The invention relates to the technical field of textile equipment, in particular to an embroidery machine head which comprises an embroidery machine head body, a connecting assembly and a thread trimming and cleaning unit, and the embroidery machine head body is connected with the thread trimming and cleaning unit through the connecting assembly; the thread trimming and cleaning unit comprises a fixing frame and a thread trimming assembly, a cleaning assembly and a driving assembly which are arranged on the fixing frame, the fixing frame is fixedly connected with the connecting assembly, the thread trimming assembly is used for cutting off threads output by the embroidery machine head main body, and the cleaning assembly is used for cleaning dust and thread ends generated in the thread trimming process. The driving assembly is used for providing power for operation of the thread trimming assembly and operation of the cleaning assembly, so that cleaning is completed synchronously in the thread trimming process, dust, thread ends and other sundries generated by thread trimming can be sucked into an air suction pipe through the design of the cleaning assembly, the dust, the thread ends and other sundries are collected through the collecting assembly, and the dust and the thread ends can be cleaned conveniently. Thread ends and other sundries are prevented from accumulating at the bottom of the computerized embroidery machine to influence normal operation of the embroidery machine.

Description

Technical Field

[0001] The invention relates to the technical field of textile equipment, in particular to an embroidery machine head. Background Art

[0002] Embroidery machines can make traditional handmade embroidery be realized at high speed and high efficiency, and can also achieve the requirements of multi-level, multi-function, unity and perfection that handmade embroidery cannot achieve. Generally, according to the embroidery function, it can be divided into: ordinary flat embroidery machine, gold piece embroidery (single gold, double gold, stacked gold, four gold), towel embroidery, winding embroidery (rope embroidery), laser embroidery, flocking embroidery, cap embroidery, garment embroidery, high-speed machine, etc. Chain embroidery has broad development prospects in the fields of children's clothing, home decoration, women's shoes and hats, etc. due to its strong three-dimensional sense, rich layers and gorgeous colors.

[0003] The existing embroidery machine thread cutting mechanism will generate some dust in the process of cutting the thread. These dust, thread ends and other debris will gradually accumulate at the bottom of the computer embroidery machine. If they are not cleaned for a long time, it will affect the normal use of the machine and the final embroidery effect. At the same time, the embroidery needle keeps shuttling on the cloth, and the cloth shakes up and down with the embroidery needle as it keeps shuttling up and down. Since the cloth has a large area, the air resistance under the cloth is greater than that of the embroidery needle when it is lifted in the vertical direction. Therefore, the speed of the cloth shaking up and down is lower than the speed of the embroidery needle on the cloth. When the embroidery needle starts embroidering again, the cloth has not returned to its initial state, resulting in a deviation between the needle lowering position and the actual position, thereby affecting the embroidery quality of the cloth, and at the same time, it may cause the embroidery thread to break and the stability of the embroidery machine thread cutting. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to overcome the problem in the prior art that dust, thread ends and other debris will gradually accumulate at the bottom of a computer embroidery machine, which will affect the normal use of the machine and the final embroidery effect if not cleaned for a long time, an embroidery machine head is provided.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an embroidery machine head, comprising an embroidery machine head body, a connecting component and a thread trimming and clearing unit, wherein the embroidery machine head body is connected with the thread trimming and clearing unit through the connecting component;

[0006] The thread trimming and cleaning unit comprises a fixed frame, a thread trimming assembly, a cleaning assembly and a driving assembly arranged on the fixed frame. The fixed frame and the connecting assembly are fixedly connected. The thread trimming assembly is used to trim the silk thread outputted by the embroidery machine head body. The cleaning assembly is used to clean the dust and thread ends generated during the thread trimming process. The driving assembly is used to provide power for the operation of the thread trimming assembly and the operation of the cleaning assembly, so that the cleaning is completed synchronously during the thread trimming process.

[0007] The wire cutting assembly includes a blade and a blade holder, wherein the blade and the blade holder are fixedly connected.

[0008] The cleaning component includes an air suction head, a collection box, a first connecting pipe, a second connecting pipe, a piston, a piston rod, a piston cylinder and an air outlet pipe. The piston cylinder is fixedly connected to a fixed frame, the piston is slidably arranged in the piston cylinder, one end of the piston rod is fixedly connected to the piston, and the other end extends to the outside of the piston cylinder. The piston divides the space in the piston cylinder into a rodless cavity and a rod cavity. The air suction head faces the shearing station of the wire cutting component, one end of the first connecting pipe is connected to the air suction head, and the other end is connected to the collection box, one end of the second connecting pipe is connected to the collection box, and the other end is connected to the rodless cavity of the piston cylinder, and the air outlet pipe is connected to the rodless cavity of the piston cylinder;

[0009] The driving component drives and connects the knife holder of the thread trimming component and the piston rod of the cleaning component. Through the design of the cleaning component, dust and thread ends and other debris generated by thread trimming can be sucked into the suction pipe, and the dust and thread ends and other debris can be collected through the collecting component to prevent the thread ends and other debris from accumulating at the bottom of the computer embroidery machine and affecting the normal operation of the embroidery machine.

[0010] The fabric is pressed by a fixed frame to ensure the stability of the embroidery process.

[0011] In order to solve the problem of how the driving assembly drives the thread trimming assembly and the cleaning assembly, the driving assembly further includes a motor, a screw rod, a belt, a turntable, a movable column and a movable frame, and the motor is used to provide power for the rotation of the screw rod and the turntable;

[0012] The motor is fixedly connected to the fixed frame, the output shaft of the motor is transmission-connected to the lead screw, and the lead screw is threadedly connected to the tool holder;

[0013] The turntable and the fixed frame are rotatably connected, the output shaft of the motor is connected to the turntable through a belt transmission, the movable column and the turntable are fixedly connected, the movable frame and the piston rod are fixedly connected, the movable frame has a movable cavity for the movable column to move, the movable column is arranged in the movable cavity, so that the movable frame can reciprocate up and down when the turntable rotates.

[0014] In order to solve the problem that debris may enter the piston cylinder, a filter screen is further arranged at the connection port of the second connecting pipe and the collecting box.

[0015] In order to solve the problem that debris will accumulate on the filter and cause blockage, the cleaning assembly further includes a connecting frame, a movable plate, a connecting column, a reset element and a scraper. The scraper is used to clean the filter. One end of the connecting column is fixed with the scraper, and the other end passes through the collection box and is fixedly connected to the connecting frame. The connecting column and the collection box are slidably connected. The reset element is sleeved on the connecting column. The reset element is used to provide power for resetting the connecting frame. The movable plate and the connecting frame are fixedly connected.

[0016] A pressing plate for matching with the moving plate is arranged on the movable frame. When the movable frame reciprocates up and down, the pressing plate presses the moving plate to make the scraper downward. When the pressing plate contacts and presses, the scraper is reset under the action of the reset element.

[0017] It further comprises a reset element, one end of which abuts against the connecting frame, and the other end of which abuts against the collecting box.

[0018] In order to solve the problem of unstable movement of the connecting frame, a guide ball is further installed at one end of the connecting frame close to the fixed frame, a guide groove matching the guide ball is opened on one side of the fixed frame, and the guide ball is slidably connected to the guide groove.

[0019] In order to solve the problem of airflow backflow output from the suction head, a suction check valve is further arranged in the second connecting pipe, and the suction check valve allows air to be input into the rodless cavity of the piston cylinder.

[0020] An air outlet one-way valve is arranged in the air outlet pipe, and the air outlet one-way valve allows air to be output from the rodless cavity of the piston cylinder.

[0021] Further comprising a thread trimming assembly including two knife seats;

[0022] The screw rod is provided with two thread segments with opposite spiral directions, and the thread segments of the screw rod are respectively threadedly connected to a tool holder, so that the two tool holders can approach or move away from each other.

[0023] It further includes a connecting component including a lifting drive component, a mounting plate, a limit column, a limit seat and a connecting plate. The mounting plate is fixedly connected to the embroidery machine head body, the lifting drive component is fixedly connected to the mounting plate, the output end of the lifting drive component is fixedly connected to the connecting plate, the limit seat is fixedly connected to the mounting plate through the limit column, and the limit seat is fixedly connected to the fixed frame.

[0024] In order to solve the problem of low stability of the connecting plate, the connecting assembly further includes a telescopic rod, the telescopic rod is fixedly connected to the mounting plate, and the telescopic end of the telescopic rod is fixedly connected to the connecting plate.

[0025] The beneficial effects of the present invention are as follows: the embroidery machine head provided by the present invention can suck dust and debris such as thread ends generated by thread cutting into the suction pipe through the design of the cleaning component, and collect the dust and debris such as thread ends through the collecting component, thereby preventing the debris such as thread ends from accumulating at the bottom of the computer embroidery machine and affecting the normal operation of the embroidery machine;

[0026] The fabric is pressed by a fixed frame to ensure the stability of the embroidery process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1It is a schematic diagram of the front structure of the embroidery machine head body of the present invention;

[0029] Figure 2 It is a schematic diagram of the back structure of the embroidery machine head body of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the connection assembly of the present invention;

[0031] Figure 4 For the present invention Figure 1 The enlarged view of point A in the middle;

[0032] Figure 5 It is a partial structural schematic diagram of the thread cutting assembly of the present invention;

[0033] Figure 6 A partial side cross-sectional view of the cleaning assembly of the present invention;

[0034] Figure 7 It is a partial side sectional view of the collection box of the present invention.

[0035] In the figure: 100, embroidery machine head body;

[0036] 200, connecting assembly, 210, lifting drive member, 220, mounting plate, 230, limiting column, 240, limiting seat, 250, connecting plate, 260, telescopic rod, 270, limiting ball;

[0037] 300, thread trimming and clearing unit, 310, fixing frame;

[0038] 320, a thread trimming assembly, 321, a blade, 322, a blade holder;

[0039] 330, cleaning assembly, 331, suction head, 332, collecting box, 333, first connecting pipe, 334, second connecting pipe, 335, piston, 336, piston rod, 337, piston cylinder, 338, air outlet pipe, 339, filter screen, 3310, connecting frame, 3311, moving plate, 3312, connecting column, 3313, reset element, 3314, scraper, 3315, guide ball, 3316, suction check valve, 3317, air outlet check valve;

[0040] 340. driving assembly, 341. motor, 342. screw rod, 343. belt, 344. turntable, 345. movable column, 346. movable frame, 3461. movable cavity, 347. pressure plate. DETAILED DESCRIPTION

[0041] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0042] like Figure 1 1 is a schematic diagram of the structure of the present invention, an embroidery machine head, comprising an embroidery machine head body 100, a connecting assembly 200 and a thread trimming and clearing unit 300, wherein the embroidery machine head body 100 is connected to the thread trimming and clearing unit 300 through the connecting assembly 200;

[0043] like Figure 1 , Figure 2 , Figure 3 As shown, the connecting assembly 200 includes a lifting drive member 210, a mounting plate 220, a limiting column 230, a limiting seat 240 and a connecting plate 250. The mounting plate 220 is fixedly connected to the embroidery machine head body 100, the lifting drive member 210 is fixedly connected to the mounting plate 220, the output end of the lifting drive member 210 is fixedly connected to the connecting plate 250, the limiting seat 240 is fixedly connected to the mounting plate 220 through the limiting column 230, the limiting seat 240 is fixedly connected to the fixing frame 310, and the lifting drive member 210 can be a power element such as a hydraulic cylinder and an electric push rod, and this application does not make any specific limitation on this.

[0044] In this embodiment, a plurality of groups of equally spaced limiting posts 230 are fixedly mounted on the lower surface of the connecting plate 250, and each group of limiting posts 230 corresponds to each presser foot on the embroidery machine head body 100 and is in the same straight line, a limiting seat 240 is fixedly mounted on the bottom of each group of limiting posts 230, a limiting ball 270 is mounted on the bottom of each group of limiting seats 240, and a thread trimming and cleaning unit is provided on the outer side of each group of limiting seats 240.

[0045] The connecting assembly 200 includes a telescopic rod 260, the telescopic rod 260 is fixedly connected to the mounting plate 220, and the telescopic end of the telescopic rod 260 is fixedly connected to the connecting plate 250. The design of the telescopic rod 260 can increase the stability of the connecting plate 250. The telescopic ends of the telescopic rod 260 extend through the bottom of the mounting plate 220 and are fixedly connected to the upper surface of the connecting plate 250.

[0046] like Figure 4 , Figure 6 As shown, the thread trimming and cleaning unit includes a fixed frame 310 and a thread trimming assembly 320, a cleaning assembly 330 and a driving assembly 340 arranged on the fixed frame 310. The fixed frame 310 is a U-shaped structure. The fixed frame 310 and the connecting assembly 200 are fixedly connected. The thread trimming assembly 320 is used to cut the silk thread output by the embroidery machine head body 100. The cleaning assembly 330 is used to clean the dust and thread ends generated during the thread trimming process. The driving assembly 340 is used to provide power for the operation of the thread trimming assembly 320 and the operation of the cleaning assembly 330, so that the cleaning is completed synchronously during the thread trimming process.

[0047] like Figure 4 , 5As shown, the wire cutting assembly 320 includes a blade 321 and a blade holder 322, and the blade 321 and the blade holder 322 are fixedly connected. In this embodiment, the wire cutting assembly 320 includes two blade holders 322, the blade 321 is arranged on one of the blade holders 322, and the other blade holder 322 has a blade groove matching the blade 321.

[0048] The screw rod 342 has two thread segments with opposite spiral directions. The thread segments of the screw rod 342 are respectively threadedly connected to a knife seat 322, so that the two knife seats 322 can move closer to or farther away from each other. The screw rod 342 is a bidirectional thread screw rod.

[0049] like Figure 4 , 7 As shown, the cleaning component 330 includes an air suction head 331, a collection box 332, a first connecting pipe 333, a second connecting pipe 334, a piston 335, a piston rod 336, a piston cylinder 337 and an air outlet pipe 338. The piston cylinder 337 is fixedly connected to the fixing frame 310, and the piston 335 is slidably arranged in the piston cylinder 337. One end of the piston rod 336 is fixedly connected to the piston 335, and the other end extends to the outside of the piston cylinder 337. The piston 335 divides the space in the piston cylinder 337 into a rodless cavity and a rod cavity. The air suction head 331 is directed toward the thread trimming component 320. At the shearing station, one end of the first connecting pipe 333 is connected to the suction head 331, and the other end is connected to the collecting box 332. One end of the second connecting pipe 334 is connected to the collecting box 332, and the other end is connected to the rodless cavity of the piston cylinder 337. The air outlet pipe 338 is connected to the rodless cavity of the piston cylinder 337. Through the design of the cleaning component 330, dust and thread ends and other debris generated by thread cutting can be sucked into the suction pipe, and the dust and thread ends and other debris can be collected through the collecting component to prevent the thread ends and other debris from accumulating at the bottom of the computer embroidery machine and affecting the normal operation of the embroidery machine.

[0050] like Figure 4 As shown, the driving assembly 340 is connected to the knife seat 322 of the wire cutting assembly 320 and the piston rod 336 of the cleaning assembly 330 through transmission.

[0051] The driving assembly 340 includes a motor 341, a screw rod 342, a belt 343, a turntable 344, a movable column 345 and a movable frame 346. The motor 341 is used to provide power for the rotation of the screw rod 342 and the rotation of the turntable 344;

[0052] The motor 341 is fixedly connected to the fixed frame 310, the output shaft of the motor 341 is drivingly connected to the screw rod 342, and the screw rod 342 is threadedly connected to the knife seat 322;

[0053] The turntable 344 is rotatably connected to the fixed frame 310, the output shaft of the motor 341 is transmission-connected to the turntable 344 via the belt 343, the movable column 345 is fixedly connected to the turntable 344, the movable frame 346 is fixedly connected to the piston rod 336, the movable frame 346 has a movable cavity 3461 for the movable column 345 to move, the movable column 345 is arranged in the movable cavity 3461, so that the movable frame 346 can reciprocate up and down when the turntable 344 rotates.

[0054] In another embodiment, the motor 341 and the turntable 344 can be connected via a gear set.

[0055] A filter 339 is arranged at the connection port between the second connecting pipe 334 and the collecting box 332. When debris such as dust and lint enters the air intake pipe, the internal filter 339 intercepts it.

[0056] The cleaning assembly 330 includes a connecting frame 3310, a movable plate 3311, a connecting column 3312, a reset element 3313 and a scraper 3314. The scraper 3314 is used to clean the filter screen 339. One end of the connecting column 3312 is fixedly connected to the scraper 3314, and the other end passes through the collection box 332 and is fixedly connected to the connecting frame 3310. The connecting column 3312 and the collection box 332 are slidably connected. The reset element 3313 is sleeved on the connecting column 3312. The reset element 3313 is used to provide power for resetting the connecting frame 3310. The movable plate 3311 and the connecting frame 3310 are fixedly connected.

[0057] A pressure plate 347 is arranged on the movable frame 346 to match the movable plate 3311. When the movable frame 346 reciprocates up and down, the pressure plate 347 presses the movable plate 3311, so that the scraper 3314 is downward. When the pressure plate 347 contacts and presses, the scraper 3314 is reset under the action of the reset element 3313, that is, the pressure plate 347 and the movable plate 3311 are located in the same plane.

[0058] One end of the reset element 3313 abuts against the connecting frame 3310 , and the other end abuts against the collecting box 332 . The reset element 3313 may be an element with elastic potential energy, such as a spring or a rubber spring.

[0059] Usage: When dust, lint and other debris enter the second connecting pipe 334, they are intercepted by the filter 339 inside the second connecting pipe 334, and part of the dust and lint falls downward into the collecting box 332, while part of the dust and lint adheres to the surface of the filter 339. At the same time, the movable frame 346 moves downward, driving the pressure plate 347 to move downward synchronously until the pressure plate 347 contacts the movable plate 3311 and drives it to move downward synchronously, thereby driving the connecting frame 3310 to move downward, thereby driving the connecting column 3312 and the scraper 3314 to move downward. At this time, the resetting element 3313 is squeezed, and the scraper 4916 scrapes the surface of the filter 339 during the downward movement, removing the debris attached to its surface. The dust and thread ends on the surface are scraped off and fall into the collection box 332 for collection. When the movable frame 346 drives the pressure plate 347 to move upward, the movable plate 3311 loses the squeezing of the pressure plate 347, and the connecting frame 3310 is driven to move upward under the action of the elastic force of the reset element 3313 itself, thereby driving the connecting column 3312 and the scraper 3314 to move upward synchronously, and the surface of the filter 339 is scraped again. This is repeated to ensure that the surface of the filter 339 will not be attached and accumulated by dust and thread ends, causing the filter 339 to be blocked, thereby affecting the normal operation of the suction component 400. At the same time, the cleaning component 330 is also used to prevent thread ends and other debris from accumulating at the bottom of the computer embroidery machine and affecting the normal operation of the embroidery machine.

[0060] A guide ball 3315 is installed at one end of the connecting frame 3310 close to the fixed frame 310, and a guide groove matching the guide ball 3315 is opened on one side of the fixed frame 310, and the guide ball 3315 is slidably connected to the guide groove.

[0061] An air intake check valve 3316 is arranged in the second connecting pipe 334. The air intake check valve 3316 allows air to be input into the rodless chamber of the piston cylinder 337.

[0062] An air outlet one-way valve 3317 is arranged in the air outlet pipe 338 , and the air outlet one-way valve 3317 allows air to be output from the rodless chamber of the piston cylinder 337 .

[0063] Before embroidering the fabric, by starting the lifting drive member 210 installed on the mounting plate 220, the output end of the lifting drive member 210 drives the connecting plate 250 to move downward, thereby driving the limiting column 230 and the limiting seat 240 to move downward synchronously until the limiting ball 270 at the bottom of the limiting seat 240 is in contact with the surface of the fabric, thereby reducing the possibility of the fabric shaking in the vertical direction driven by the embroidery needle, thereby affecting the embroidery quality. By setting the limiting ball 270, when the fabric moves in the horizontal direction, the limiting ball 270 rotates to reduce the friction between the fabric and the limiting ball 270, thereby reducing the possibility of reducing the embroidery quality of the fabric due to unevenness when the fabric moves. By setting the telescopic rod 270 to provide a guiding effect on the up and down movement of the connecting plate 250 and the limiting column 230, the up and down movement of the limiting ball 270 is further made more stable.

[0064] When thread trimming is required during the embroidery process, the output end of the motor 341 rotates to cooperate with the belt 343 to drive the rotating shaft to rotate, thereby driving the turntable 344 to rotate. At this time, the movable column 345 starts to make a circular motion, driving the movable frame 346 to start a reciprocating motion in the vertical direction, thereby driving the piston rod 336 to drive the piston 335 to make a reciprocating pulling motion in the piston cylinder 337. When the piston rod 336 drives the piston 335 to move toward the top of the piston cylinder 337, the piston cylinder 337 generates a negative pressure, and the suction head 331 is aligned with the internal area of ​​the U-shaped fixed frame 310 to generate suction, and the dust and thread ends and other debris generated by thread trimming are sucked into the first connecting pipe 333, and the dust and thread ends and other debris are collected through the collecting box 332. At the same time, when the piston rod 336 drives the piston 335 to move to the bottom of the piston cylinder 337, the gas is discharged through the outlet pipe 338.

[0065] When thread cutting is required during the embroidery process, the motor 341 is started, and the output end of the motor 341 drives the bidirectional threaded screw 342 to rotate, thereby driving the knife seat 322 threadedly connected thereto to slide relative to each other, and then driving the blade 321 to move relative to each other, and the thread is cut with the cooperation of the blade 321 and the knife groove.

[0066] When in use, when thread trimming is required during the embroidery process, the output end of the motor 341 rotates and cooperates with the belt 343 to drive the rotating shaft to rotate, thereby driving the turntable 344 to rotate. At this time, the movable column 345 starts to make a circular motion, driving the movable frame 346 to start a reciprocating motion in the vertical direction, thereby driving the piston rod 336 to drive the piston 335 to make a reciprocating pulling motion in the piston cylinder 337. When the piston rod 336 drives the piston 335 to move toward the top of the piston cylinder 337, the piston cylinder 337 generates negative pressure, and the suction head 331 is aligned with the internal area of ​​the U-shaped fixed frame 310 to generate suction, The dust and thread ends generated by the wire cutting are sucked into the first connecting pipe 333, and the dust and thread ends are collected by the collecting box 332. At the same time, when the piston rod 336 drives the piston 335 to move to the bottom of the piston cylinder 337, the gas is discharged through the outlet pipe 338. When the dust and thread ends enter the suction pipe 470, they are intercepted by the filter 339 inside the suction pipe 470. Some of the dust and thread ends fall downward into the collecting box 332, and some of the dust and thread ends adhere to the surface of the filter 339, and at the same time, the movable frame 34 6 moves downward, driving the pressing plate 347 to move downward synchronously, until the pressing plate 347 contacts the movable plate 3311 and drives it to move downward synchronously, thereby driving the connecting frame 3310 to move downward together, thereby driving the scraper 3314 to move downward. At this time, the reset element 3313 is squeezed, and the scraper 3314 scrapes the surface of the filter screen 339 during the downward movement, and the dust and thread ends attached to the surface are scraped off and fall into the collection box 332 for collection. When the movable frame 346 drives the pressing plate 347 to move upward, the movable plate 3311 loses the squeezing of the pressing plate 347. , under the action of the elastic force of the reset element 3313 itself, the connecting frame 3310 is driven to move upward, thereby driving the scraper 3314 to move upward, and the surface of the filter 339 is scraped again, and this is repeated to ensure that the surface of the filter 339 will not be attached and accumulated by dust and thread ends, causing blockage of the filter 339, thereby affecting the normal operation of the cleaning component 330. At the same time, the scraper 3314 is also used to prevent thread ends and other debris from accumulating at the bottom of the computer embroidery machine, affecting the normal operation of the embroidery machine. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0067] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An embroidery machine head, characterized in that: The embroidery machine head body (100), a connection component (200) and a thread trimming and clearing unit (300), wherein the embroidery machine head body (100) is connected to the thread trimming and clearing unit (300) via the connection component (200); The thread trimming and cleaning unit comprises a fixing frame (310) and a thread trimming assembly (320), a cleaning assembly (330) and a driving assembly (340) arranged on the fixing frame (310); the fixing frame (310) and the connecting assembly (200) are fixedly connected; the thread trimming assembly (320) is used to trim the silk thread output by the embroidery machine head body (100); the cleaning assembly (330) is used to clean the dust and thread ends generated during the thread trimming process; and the driving assembly (340) is used to provide power for the operation of the thread trimming assembly (320) and the operation of the cleaning assembly (330), so that the cleaning is completed synchronously during the thread trimming process; The thread cutting assembly (320) comprises a blade (321) and a blade holder (322), wherein the blade (321) and the blade holder (322) are fixedly connected. The cleaning assembly (330) comprises an air suction head (331), a collection box (332), a first connecting pipe (333), a second connecting pipe (334), a piston (335), a piston rod (336), a piston cylinder (337) and an air outlet pipe (338), wherein the piston cylinder (337) is fixedly connected to the fixing frame (310), the piston (335) is slidably arranged in the piston cylinder (337), one end of the piston rod (336) is fixedly connected to the piston (335), and the other end extends to the piston cylinder (337). ) outside, the piston (335) divides the space inside the piston cylinder (337) into a rodless chamber and a rod chamber, the suction head (331) faces the shearing station of the thread trimming assembly (320), one end of the first connecting pipe (333) is connected to the suction head (331), and the other end is connected to the collection box (332), one end of the second connecting pipe (334) is connected to the collection box (332), and the other end is connected to the rodless chamber of the piston cylinder (337), and the air outlet pipe (338) is connected to the rodless chamber of the piston cylinder (337); The driving assembly (340) is transmission-connected to the knife seat (322) of the thread cutting assembly (320) and the piston rod (336) of the cleaning assembly (330).

2. An embroidery machine head according to claim 1, characterized in that: The driving assembly (340) comprises a motor (341), a screw rod (342), a belt (343), a turntable (344), a movable column (345) and a movable frame (346), wherein the motor (341) is used to provide power for the rotation of the screw rod (342) and the turntable (344); The motor (341) is fixedly connected to the fixed frame (310), the output shaft of the motor (341) is transmission-connected to the screw rod (342), and the screw rod (342) is threadedly connected to the knife seat (322); The turntable (344) is rotatably connected to the fixed frame (310); the output shaft of the motor (341) is transmission-connected to the turntable (344) via a belt (343); the movable column (345) is fixedly connected to the turntable (344); the movable frame (346) is fixedly connected to the piston rod (336); the movable frame (346) has a movable cavity (3461) for the movable column (345) to move; the movable column (345) is arranged in the movable cavity (3461), so that the movable frame (346) can reciprocate up and down when the turntable (344) rotates.

3. An embroidery machine head as claimed in claim 2, characterized in that: A filter screen (339) is arranged at the connection port between the second connecting pipe (334) and the collecting box (332).

4. An embroidery machine head as claimed in claim 3, characterized in that: The cleaning assembly (330) comprises a connecting frame (3310), a movable plate (3311), a connecting column (3312), a reset element (3313) and a scraper (3314); the scraper (3314) is used to clean the filter screen (339); one end of the connecting column (3312) is fixedly connected to the scraper (3314); the other end passes through the collection box (332) and is fixedly connected to the connecting frame (3310); the connecting column (3312) and the collection box (332) are slidably connected; the reset element (3313) is sleeved on the connecting column (3312); the reset element (3313) is used to provide power for resetting the connecting frame (3310); the movable plate (3311) and the connecting frame (3310) are fixedly connected; one end of the reset element (3313) abuts against the connecting frame (3310) and the other end abuts against the collection box (332); A pressing plate (347) for matching with the movable plate (3311) is arranged on the movable frame (346); when the movable frame (346) reciprocates up and down, the pressing plate (347) presses the movable plate (3311) so that the scraper (3314) moves downward; when the pressing plate (347) contacts and presses, the scraper (3314) is reset under the action of the reset element (3313).

5. An embroidery machine head as claimed in claim 4, characterized in that: A guide ball (3315) is installed at one end of the connecting frame (3310) close to the fixed frame (310), and a guide groove matching the guide ball (3315) is opened on one side of the fixed frame (310), and the guide ball (3315) is slidably connected to the guide groove.

6. An embroidery machine head according to claim 1, characterized in that: An air intake check valve (3316) is arranged in the second connecting pipe (334), and the air intake check valve (3316) allows air to be input into the rodless chamber of the piston cylinder (337). An air outlet one-way valve (3317) is arranged in the air outlet pipe (338), and the air outlet one-way valve (3317) allows air to be output from the rodless chamber of the piston cylinder (337).

7. An embroidery machine head as claimed in claim 2, characterized in that: The thread cutting assembly (320) comprises two knife seats (322); The screw rod (342) has two thread segments with opposite spiral directions, and the thread segments of the screw rod (342) are respectively threadedly connected to a knife seat (322), so that the two knife seats (322) can approach or move away from each other.

8. An embroidery machine head according to claim 1, characterized in that: The connection assembly (200) comprises a lifting drive member (210), a mounting plate (220), a limiting column (230), a limiting seat (240) and a connecting plate (250); the mounting plate (220) is fixedly connected to the embroidery machine head body (100); the lifting drive member (210) is fixedly connected to the mounting plate (220); the output end of the lifting drive member (210) is fixedly connected to the connecting plate (250); the limiting seat (240) is fixedly connected to the mounting plate (220) via the limiting column (230); and the limiting seat (240) is fixedly connected to the fixing frame (310).

9. An embroidery machine head according to claim 8, characterized in that: The connection assembly (200) comprises a telescopic rod (260), the telescopic rod (260) and the mounting plate (220) are fixedly connected, and the telescopic end of the telescopic rod (260) and the connecting plate (250) are fixedly connected.

10. An embroidery machine head according to claim 8, characterized in that: A limiting ball (270) is arranged on the bottom surface of the limiting seat (240).

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