Thread clamp on embroidery machine

Abstract

The present invention relates to a thread clamp for an embroidery machine, comprising a housing assembly consisting of a panel and a shell covered behind the panel; a thread pressing piece assembly arranged at the thread inlet and the thread outlet of the panel and used for guiding and limiting the embroidery thread; a thread pressing line assembly installed on the panel between the thread pressing piece assemblies and used for changing the resistance of the embroidery thread passing through; a thread passing nail assembly distributed on the panels on the upper and lower sides of the thread pressing line assembly and used for guiding the embroidery thread; a thread passing wheel assembly arranged above the thread pressing piece assembly at the thread outlet and used for guiding the embroidery thread; and a display assembly arranged on the panel and connected to the thread pressing line assembly. The purpose of the present invention is to overcome the defects of the prior art and provide an embroidery machine thread clamp that uses electromagnet suction to adjust the thread tension, is simple to operate, has good consistency, and can digitize the tension management.

Description

Technical Field

[0001] The invention relates to the field of embroidery machines, in particular to a thread clamp on an embroidery machine. Background Art

[0002] The rapid rise of the domestic embroidery machine industry has made China a major embroidery machine manufacturer and exporter in the world in just a few years. The development of embroidery machines has not only injected fresh blood into the sewing machinery industry, but also promoted the upgrading and transformation of downstream industries such as clothing, decoration, household goods, and fabric industries.

[0003] At present, in China, the thread clamp, which is an important part of embroidery machines, uses mechanical thread feeding to adjust the thread tension. The mechanical thread feeding structure has the problems of complex operation, poor consistency and inability to manage digitally. Therefore, it is necessary to design a thread clamp that uses electromagnet suction to adjust the thread tension, which is simple to operate, has good consistency and is easy to manage digitally. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide an embroidery machine thread clamp which uses electromagnet suction to adjust thread tension, is simple to operate, has good consistency and is convenient for digital tension management.

[0005] The technical solution to achieve the purpose of the present invention is: a thread clamp on an embroidery machine, comprising

[0006] A housing assembly consisting of a panel and a shell covered behind the panel;

[0007] A thread pressing piece assembly arranged at the thread inlet and the thread outlet of the panel and used for guiding and limiting the embroidery thread;

[0008] A thread pressing line assembly installed on a panel between thread pressing plate assemblies and used to change the resistance of the embroidery thread passing through;

[0009] A thread pin assembly distributed on the upper and lower panels of the pressing line assembly and used for guiding the embroidery thread;

[0010] A thread wheel assembly arranged above the thread pressing plate assembly at the thread outlet and used for guiding the embroidery thread;

[0011] A display component is arranged on the panel and connected to the pressure bar component.

[0012] Preferably, both sides of the lower end of the panel extend backward to form a mounting bracket, and a mounting hole for installation is longitudinally opened on the mounting bracket; a plurality of mounting columns for assisting the locking of the outer shell and the panel are integrally formed inside the outer shell, and an alignment hole is opened on the lower end surface of the outer shell in contact with the mounting bracket, and the alignment hole corresponds to the position of the mounting hole and is subsequently locked and fixed with bolts.

[0013] More preferably, the mounting brackets on both sides of the mounting holes are also provided with positioning protrusions, and the positioning protrusions are integrally formed with the mounting brackets; a positioning hole is opened on the lower end surface of the shell corresponding to the position of the positioning protrusion, and after the positioning hole and the positioning protrusion are aligned and snap-fitted, the problem of misalignment between the shell and the panel during the locking process can be avoided, that is, the cooperation between the positioning hole and the positioning protrusion mainly plays the effect of pre-positioning the shell and the panel before installation and locking.

[0014] More preferably, the wire pressing plate assembly includes an upper wire pressing plate group and a lower wire pressing plate group; the upper wire pressing plate group is arranged at the wire inlet of the panel; the lower wire pressing plate group is arranged at the wire outlet of the panel; the upper wire pressing plate group and the lower wire pressing plate group are arranged in parallel.

[0015] Preferably, the upper and lower crimping sheet groups are respectively composed of a plurality of crimping units equally spaced in the horizontal direction; the crimping units are detachably mounted on the panel. The detachable connection between the crimping units and the panel facilitates subsequent maintenance and replacement operations on the components.

[0016] More preferably, the wire pressing unit includes a wire pressing piece, an adjusting screw and a deformation spring; the adjusting screw passes through the wire pressing piece and is threadedly connected to the panel; the deformation spring is sleeved on the adjusting screw on the outside of the wire pressing piece; a wire passing slot is provided at the overlapping part of the wire pressing piece and the embroidery thread passing path, preferably, each wire pressing piece is provided with two penetrating wire passing slots, and the wire passing slots are distributed on the left and right sides of the wire pressing piece.

[0017] More preferably, the wire pressing piece is configured to be in a rectangular shape that matches the lower edge of the panel; the rectangular wire pressing piece is clamped at the lower edge of the panel.

[0018] More preferably, a through slot is provided on the panel where the wire pressing line assembly is installed; the wire pressing line assembly includes a wire pressing actuator assembly detachably installed at the front end of the through slot, a wire pressing drive control assembly installed at the rear end of the through slot, and a stainless steel bar arranged therebetween; a space is reserved between the wire pressing actuator assembly and the stainless steel bar to allow embroidery thread to pass through; the wire pressing drive control assembly drives the wire pressing actuator assembly located in front of the stainless steel bar by magnetic force.

[0019] Preferably, the wire pressing drive control component includes a support frame, a guide rod, a sliding component, an electromagnet and a circuit board; the support frame is installed at the through-slot at the rear end of the panel by bolt locking, and the front end of the support frame extends forward to form a mounting seat, and the stainless steel bar is locked on the mounting seat by bolts; the guide rod is horizontally mounted on the support frame; the sliding component is slidably set on the guide rod and the electromagnet is installed on the inner side of the sliding component, that is, close to the side of the stainless steel bar; the electromagnet is electrically connected to the circuit board, and the wire pressing actuator component is driven by controlling the magnitude of the current passing through the electromagnet by the circuit board, and the circuit board is installed above the wire pressing drive control component on the inner side of the panel, and is locked and installed by means of a mounting column integrally formed with the panel and cooperating with bolts; the stainless steel bar is installed on the front end of the support frame by bolt locking.

[0020] More preferably, the sliding assembly includes a sliding block and a linear bearing installed in the sliding block, and the linear bearing is slidably connected to the guide rod.

[0021] More preferably, the thread pressing execution component includes a thread pressing line and a thread pressing block unit which is evenly distributed on the thread pressing line in the horizontal direction and acts on the embroidery thread in a direction perpendicular to the panel, and the thread pressing block unit is driven by a thread pressing drive control component; grooves for installing the thread pressing block units are evenly spaced on the thread pressing line.

[0022] More preferably, the inner sides of both ends of the pressing strip are detachably connected to the stainless steel bar through a magnet assembly. More specifically, auxiliary mounting holes are opened at both ends of the pressing strip, and magnets are pre-installed in the auxiliary mounting holes. The magnets are not drawn in the figure, and the stainless steel bar corresponding to the position of the magnet needs to be pre-installed with an attraction magnet that matches it, that is, the quick disassembly and assembly operation between the pressing strip and the stainless steel bar is achieved through the attraction principle of the magnet assembly, and the structure is simple and practical.

[0023] More preferably, handles are further installed on the outer sides of both ends of the pressing line, and the handles are threadedly connected to the pressing line. The installation of the handles facilitates the disassembly and assembly of the pressing line, making the disassembly and assembly operation faster and more convenient.

[0024] More preferably, the thread pressing block unit includes a thread pressing block, a telescopic spring and a clamping piece; the thread pressing block equipped with the telescopic spring passes through the groove and is clamped with the clamping piece; when working, the thread pressing block unit can be driven by an external force to expand and contract and float in a direction perpendicular to the panel by squeezing the telescopic spring, thereby realizing the adjustment of the resistance of the embroidery thread passing through, and its expansion and contraction floating amount is controlled by the thread pressing drive control component.

[0025] More preferably, a limit installation groove is extended outwardly on the panel around the thread pressing execution component; a thread passing channel is reserved on the limit installation groove corresponding to the position of the thread passing nail component, and the thread passing channel is used for the embroidery thread to enter the thread pressing block unit.

[0026] More preferably, the wire-passing nail assembly includes an upper wire-passing nail group and a lower wire-passing nail group arranged parallel to the wire-pressing actuator assembly; the upper wire-passing nail group is arranged above the wire-pressing actuator assembly; the lower wire-passing nail group is arranged below the wire-pressing actuator assembly.

[0027] More preferably, the upper wire-passing nail group and the lower wire-passing nail group are respectively composed of a plurality of wire-passing nails equally spaced in the horizontal direction, and the wire-passing nails and the panel can be connected by threads. More specifically, a mounting seat is formed by protruding outward perpendicular to the panel surface, and the wire-passing nails and the mounting seat are threadedly connected.

[0028] More preferably, the thread passing wheel assembly includes a plurality of thread passing wheels and a guide member cooperating with each thread passing wheel and used for guiding the embroidery thread.

[0029] Preferably, the display component is a display screen, which is electrically connected to the circuit board and is used to display the data such as the needle position, tension, electromagnet current and embroidery thread usage of the corresponding embroidery thread collected and acquired by the circuit board; the above-mentioned specific internal circuit design and program control design of the circuit board can refer to the circuit design and program design in the prior art that can achieve the same function, and will not be elaborated here.

[0030] After adopting the above technical solution, the present invention has the following positive effects:

[0031] (1) The present invention uses electromagnet suction to adjust thread tension, which can avoid the problem of embroidery thread entanglement caused by excessive thread release during embroidery operation of the embroidery machine; in addition, it is also suitable for adjusting the tension of embroidery threads of different thicknesses, with simple operation, good consistency and convenient tension data management, thus improving the problems of poor real-time performance, poor consistency and high operator experience requirements caused by manual adjustment that can only be performed through operator experience in the prior art.

[0032] (2) The housing components of the present invention are pre-positioned by aligning and snapping together the positioning holes and the positioning protrusions, thereby avoiding the problem of misalignment between the housing and the panel during the locking process.

[0033] (3) The detachable connection between the wire pressing unit and the panel in the present invention facilitates the subsequent maintenance and replacement operations on the component, and is simple to operate and highly practical.

[0034] (4) The wire pressing piece in the present invention achieves a limiting effect through its own shape and installation structure, which can prevent the wire pressing piece from rotating when the adjusting screw is rotated.

[0035] (5) The bar pressing assembly of the present invention can adjust the resistance of the embroidery thread passing through the assembly by changing the magnitude of the electromagnet current, thereby changing the pulling force of the embroidery thread, and has good consistency and strong stability.

[0036] (6) The wire pressing actuator assembly in the present invention is detachably installed via a magnet assembly. This design facilitates the disassembly of the assembly and facilitates the threading work. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0038] Figure 1 A perspective view of the present invention;

[0039] Figure 2 This is an exploded view from a first perspective of the present invention;

[0040] Figure 3 It is an exploded diagram of the wire pressing unit of the present invention;

[0041] Figure 4 It is an exploded view of the wire pressing block unit of the present invention;

[0042] Figure 5 It is an exploded view from a second perspective of the present invention;

[0043] Figure 6 This is an exploded view from a third perspective of the present invention;

[0044] Figure 7 It is a schematic diagram of the application of the present invention.

[0045] The reference numerals in the drawings are: housing assembly 100, panel 110, mounting bracket 111, mounting hole 112, positioning protrusion 113, housing 120, mounting column 121, alignment hole 122, positioning hole 123;

[0046] The wire pressing piece assembly 200, the wire pressing unit 210, the wire pressing piece 211, the adjusting screw 212, the deformation spring 213, and the wire passing slot 214;

[0047] The pressing line assembly 300, the pressing line execution assembly 310, the pressing line 311, the groove 3111, the auxiliary installation hole 3112, the handle 3113, the pressing line block unit 312, the pressing line block 3121, the telescopic spring 3122, the clamping piece 3123, the pressing line drive control assembly 320, the support frame 321, the guide rod 322, the sliding assembly 323, the sliding block 3231, the linear bearing 3232, the electromagnet 324, the circuit board 325, the stainless steel bar 330, the through groove 340, and the limit installation groove 350;

[0048] The thread passing nail assembly 400, the upper thread passing nail group 410, the thread passing nail 411, and the lower thread passing nail group 420;

[0049] Wire passing wheel assembly 500, wire passing wheel 510, and display assembly 600. DETAILED DESCRIPTION

[0050] (Example 1)

[0051] Reference Figure 1 The present invention comprises

[0052] A housing assembly 100 consisting of a panel 110 and a housing 120 disposed behind the panel 110;

[0053] A thread pressing piece assembly 200 arranged at the thread inlet and the thread outlet of the panel 110 and used for guiding and limiting the embroidery thread;

[0054] A thread pressing line assembly 300 installed on the panel 110 between the thread pressing sheet assemblies 200 and used to change the resistance of the embroidery thread passing through;

[0055] The thread pin assembly 400 is distributed on the panels 110 on the upper and lower sides of the pressing line assembly 300 and is used for guiding the embroidery thread;

[0056] A thread wheel assembly 500 arranged above the thread pressing plate assembly 200 at the thread outlet and used for guiding the embroidery thread;

[0057] The display assembly 600 is disposed on the panel 110 and connected to the pressure bar assembly 300 .

[0058] Reference Figure 2 More specifically, in this embodiment, both sides of the lower end of the panel 110 extend backward to form a mounting bracket 111, and a mounting hole 112 for installation is longitudinally opened on the mounting bracket 111; the interior of the shell 120 is integrally formed with a plurality of mounting columns 121 for assisting the shell 120 to be locked with the panel 110, and the lower end surface of the shell 120 in contact with the mounting bracket 111 is provided with an alignment hole 122, and the alignment hole 122 corresponds to the position of the mounting hole 112 and is subsequently locked and fixed with bolts to complete the assembly between the shell 120 and the panel 110.

[0059] (Example 2)

[0060] Reference Figure 2 The present embodiment is based on the above embodiment. The mounting bracket 111 on both sides of the mounting hole 112 is further provided with positioning protrusions 113, and the positioning protrusions 113 are integrally formed with the mounting bracket 111; a positioning hole 123 is provided on the lower end surface of the shell 120 corresponding to the position of the positioning protrusion 113. After the positioning hole 123 and the positioning protrusion 113 are aligned and clamped, the problem of misalignment between the shell 120 and the panel 110 during the locking process can be avoided, that is, the cooperation between the positioning hole 123 and the positioning protrusion 113 mainly plays the effect of pre-positioning the shell 120 and the panel 110 before installation and locking.

[0061] (Example 3)

[0062] Reference Figure 2 This embodiment is based on the above embodiment. The wire pressing plate assembly 200 includes an upper wire pressing plate group and a lower wire pressing plate group; the upper wire pressing plate group is arranged at the wire inlet of the panel 110; the lower wire pressing plate group is arranged at the wire outlet of the panel 110; the upper wire pressing plate group and the lower wire pressing plate group are arranged in parallel.

[0063] Reference Figure 3 More specifically, in this embodiment, the upper pressing plate group and the lower pressing plate group are respectively composed of a plurality of pressing units 210 distributed at equal intervals in the horizontal direction; the pressing units 210 are detachably mounted on the panel 110. The detachable connection between the pressing unit 210 and the panel 110 facilitates subsequent maintenance and replacement operations on the assembly.

[0064] Reference Figure 3 More specifically, in this embodiment, the wire pressing unit 210 includes a wire pressing piece 211, an adjusting screw 212 and a deformation spring 213; the adjusting screw 212 penetrates the wire pressing piece 211 and is threadedly connected to the panel 110; the deformation spring 213 is sleeved on the adjusting screw 212 outside the wire pressing piece 211; a wire passing slot 214 is provided at the overlapping portion of the wire pressing piece 211 and the embroidery thread passing path, preferably, each wire pressing piece 211 is provided with two penetrating wire passing slots 214, and the wire passing slots 214 are distributed on the left and right sides of the wire pressing piece 211.

[0065] (Example 4)

[0066] Reference Figure 3 , this embodiment is based on the third embodiment, the wire pressing piece 211 is set to a rectangular shape matching the lower edge of the panel 110; the rectangular wire pressing piece 211 is clamped at the lower edge of the panel 110, and the advantage of the structural design here is that when the adjusting screw 212 is rotated to adjust the wire pressing piece 211, the rectangular wire pressing piece 211 is clamped at the lower edge of the panel 110, which can prevent the wire pressing piece 211 from rotating, that is, in the process of adjusting the wire pressing piece 211, the wire pressing piece 211 can achieve the effect of limiting and preventing rotation through its own shape and mounting structure. The lower edge of the panel 110 can be supplemented with an auxiliary plate to align and pad according to the actual wiring requirements to meet the wiring requirements, and the auxiliary plate is not marked in the figure.

[0067] (Example 5)

[0068] Reference Figure 2This embodiment is based on the above embodiment. A through slot 340 is formed on the panel 110 where the pressing line assembly 300 is installed. The pressing line assembly 300 includes a pressing line actuator assembly 310 detachably installed at the front end of the through slot 340, a pressing line drive control assembly 320 installed at the rear end of the through slot 340, and a stainless steel bar 330 arranged therebetween. A space is reserved between the pressing line actuator assembly 310 and the stainless steel bar 330 to allow the embroidery thread to pass through. The pressing line drive control assembly 320 drives the pressing line actuator assembly 310 located in front of the stainless steel bar 330 by magnetic force.

[0069] Reference Figure 5 and Figure 6 In this embodiment, more specifically, the wire pressing drive control component 320 includes a support frame 321, a guide rod 322, a sliding component 323, an electromagnet 324 and a circuit board 325; the support frame 321 is installed at the through slot 340 at the rear end of the panel 110 by bolt locking, and the front end of the support frame 321 extends forward to form a mounting seat 3211, and the stainless steel bar 330 is locked on the mounting seat 3211 by bolts; the guide rod 322 is horizontally mounted on the support frame 321; the sliding component 323 is slidably arranged on the guide rod 322 and the electromagnet 324 is installed on the inner side of the sliding component 323, that is, close to On one side of the stainless steel bar 330, when working, for the point where the resistance of the embroidery thread needs to be changed, the sliding component 323 will drive the electromagnet 324 to move to the specified position for appropriate adjustment; the electromagnet 324 is electrically connected to the circuit board 325, and the circuit board 325 controls the magnitude of the current passing through the electromagnet 324 to drive the wire pressing actuator component 310. The circuit board 325 is installed above the wire pressing drive control component 320 on the inner side of the panel 110, and is locked and installed by means of a mounting column integrally formed with the panel 110 and bolts; the stainless steel bar 330 is locked and installed on the front end of the support frame 321 by bolts.

[0070] Reference Figure 5 More specifically, in this embodiment, the sliding assembly 323 includes a sliding block 3231 and a linear bearing 3232 installed in the sliding block 3231. The linear bearing 3232 is slidably connected to the guide rod 322. The sliding block 3231 is connected to the embroidery machine and driven by the embroidery machine. Specifically, when the embroidery machine uses a certain embroidery thread, the sliding block 3231 will be driven to slide to the embroidery thread currently in use. Here, the connection structure between the sliding block 3231 and the embroidery machine is not drawn in the figure. The driving control function involved can refer to the existing technology and will not be elaborated here.

[0071] Reference Figure 4More specifically, in this embodiment, the thread pressing execution component 310 includes a thread pressing line 311 and thread pressing block units 312 that are evenly spaced on the thread pressing line 311 in the horizontal direction and act on the embroidery thread in a direction perpendicular to the panel 110. The thread pressing block unit 312 is driven by the thread pressing drive control component 320; grooves 3111 for installing the thread pressing block units 312 are evenly spaced on the thread pressing line 311.

[0072] Reference Figure 4 More specifically, in this embodiment, the thread pressing block unit 312 includes a thread pressing block 3121, a telescopic spring 3122 and a clamping piece 3123; the thread pressing block 3121 equipped with the telescopic spring 3122 passes through the groove 3111 and is clamped with the clamping piece 3123; when working, the thread pressing block unit 312 can be driven by an external force to expand and contract and float in a direction perpendicular to the panel 110 by squeezing the telescopic spring 3122, thereby adjusting the resistance of the embroidery thread, and its expansion and contraction floating amount is controlled by the thread pressing drive control component 320.

[0073] (Example 6)

[0074] Reference Figure 4 This embodiment is based on Embodiment 5. The inner sides of both ends of the pressing line 311 are detachably connected to the stainless steel bar 330 through a magnet assembly. More specifically, auxiliary mounting holes 3112 are opened at both ends of the pressing line 311. Magnets are pre-installed in the auxiliary mounting holes 3112. The magnets are not drawn in the figure. The stainless steel bar 330 corresponding to the position of the magnet needs to be pre-installed with an attracting magnet 331 that matches it. That is, the quick disassembly and assembly operation between the pressing line 311 and the stainless steel bar 330 is realized through the attraction principle of the magnet assembly. The structure is simple and practical.

[0075] (Example 7)

[0076] Reference Figure 4 This embodiment is based on Embodiment 5, and handles 3113 are further installed on the outer sides of both ends of the pressing line 311. The handles 3113 are threadedly connected to the pressing line 311. The installation of the handles 3113 facilitates the disassembly and assembly of the pressing line 311, making the disassembly and assembly operation faster and more convenient.

[0077] (Example 8)

[0078] Reference Figure 5 This embodiment is based on embodiments 5, 6, and 7. A limiting installation groove 350 is extended outward on the panel 110 around the thread pressing actuator 310. A thread passing channel is reserved on the limiting installation groove 350 corresponding to the position of the thread passing nail assembly 400, and the thread passing channel is used for the embroidery thread to enter the thread pressing block unit 312. The above-mentioned limiting installation groove 350 is used to limit and position the thread pressing actuator 310.

[0079] More specifically in this embodiment, the wire-passing nail assembly 400 includes an upper wire-passing nail group 410 and a lower wire-passing nail group 420 arranged parallel to the wire-pressing actuator assembly 310; the upper wire-passing nail group 410 is arranged above the wire-pressing actuator assembly 310; and the lower wire-passing nail group 420 is arranged below the wire-pressing actuator assembly 310.

[0080] More specifically, in this embodiment, the upper wire-passing nail group 410 and the lower wire-passing nail group 420 are respectively composed of a plurality of wire-passing nails 411 equally spaced in the horizontal direction, and the wire-passing nails 411 and the panel 110 can be connected by threads. More specifically, a mounting seat is formed by protruding outward perpendicular to the surface of the panel 110, and the wire-passing nails 411 and the mounting seat are threadedly connected.

[0081] More specifically in this embodiment, the thread passing wheel assembly 500 includes a plurality of thread passing wheels 510 and a guide member that cooperates with each thread passing wheel 510 and is used for guiding the embroidery thread.

[0082] The number of thread pins 411 in the upper thread pin group 410, the number of thread pins 411 in the lower thread pin group 420, the number of thread pressing plates 211 in the upper thread pressing plate group, the number of thread pressing plates 211 in the lower thread pressing plate group and the number of thread passing wheels 510 are the same, and the path through which each embroidery thread passes is equipped with a corresponding thread pressing plate 211, thread pin 411, thread passing wheel 510 and guide member to guide and convey it.

[0083] Reference Figure 7 , where the guides will be different due to the different distribution of the wire wheels 510. In the design process of the wire clamp, a compact design will be preferred in consideration of its own size. In this application, the multiple wire wheels 510 are preferably designed into two rows, the upper row of wire wheels 510 corresponding to the guides are the wire nails below them, and the lower row of wire wheels 510 corresponding to the guides are the guide hooks above them and the wire nails below them. The guide hooks and wire nails as guides are not marked in the figure. The installation structure between the wire wheels 510 and the panel 110 can refer to the existing structure, and will not be elaborated here.

[0084] More specifically, in this embodiment, the display component 600 is a display screen, which is electrically connected to the circuit board 325 and exchanges data therewith, and is used to display the needle position, tension, electromagnet current, and embroidery thread usage of the corresponding embroidery thread; the specific internal circuit design and program control design of the circuit board 325 mentioned above can refer to the circuit design and program design that can achieve the same function in the prior art, and will not be repeated here. In addition, the design of the display component 600 facilitates the staff to quickly obtain the relevant parameter information corresponding to the embroidery thread, facilitates management and monitoring, and improves the smooth operation of the embroidery machine to a certain extent.

[0085] The working principle of the present invention is as follows: the embroidery thread is installed, the embroidery thread enters from the upper thread pressing plate group, is tangent to the corresponding thread passing pin 411 in the upper thread passing pin group 410, then passes between the stainless steel bar 330 and the thread pressing block 3121, is tangent to the corresponding thread passing pin 411 in the lower thread passing pin group 420, then enters the corresponding thread passing wheel 510, and then passes through the lower thread pressing plate group; the embroidery thread passes through the resistance adjustment, according to the current thread needle position of the embroidery machine, the embroidery machine drives the sliding component 323 to drive the electromagnet 324 to slide to the corresponding embroidery thread, during the embroidery operation, the circuit board 325 controls the change of the current of the electromagnet 324, so that the electromagnet 324 attracts the thread pressing block 3121 in front of it, so that the thread pressing block 3121 presses the stainless steel bar 330, and by changing the clamping force of the thread pressing block 3121 and the stainless steel bar 330, the passage resistance of the embroidery thread between the thread pressing block 3121 and the stainless steel bar 330 is appropriately changed.

[0086] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thread clamp for an embroidery machine, characterized in that: include A housing assembly (100) is composed of a panel (110) and a shell (120) covered behind the panel (110); a thread pressing piece assembly (200) arranged at a thread inlet and a thread outlet of the panel (110) and used for guiding and limiting embroidery threads; a thread pressing line assembly (300) installed on the panel (110) between the thread pressing piece assemblies (200) and used for changing the resistance of embroidery threads passing through; a thread passing pin assembly (400) distributed on the panels (110) at the upper and lower sides of the thread pressing line assembly (300) and used for guiding embroidery threads; and a thread passing wheel assembly (400) arranged above the thread pressing piece assembly (200) at the thread outlet and used for guiding embroidery threads. 500); a display assembly (600) arranged on the panel (110) and connected to the pressing line assembly (300); a through slot (340) is provided through the panel (110) where the pressing line assembly (300) is installed; the pressing line assembly (300) comprises a pressing line actuator assembly (310) detachably installed at the front end of the through slot (340), a pressing line drive control assembly (320) installed at the rear end of the through slot (340), and a stainless steel bar (330) arranged therebetween; a space is reserved between the pressing line actuator assembly (310) and the stainless steel bar (330) to allow embroidery thread to pass through; the pressing line drive control assembly (320) drives the wire pressing actuator (310) located in front of the stainless steel bar (330) by magnetic force; the wire pressing drive control component (320) includes a support frame (321), a guide rod (322), a sliding component (323), an electromagnet (324) and a circuit board (325); the support frame (321) is installed at the mouth of the through slot (340) at the rear end of the panel (110), and the front end of the support frame (321) extends forward to form a mounting seat (3211), and the stainless steel bar (330) is installed on the mounting seat (3211); the guide rod (322) is horizontally mounted on the support frame (321); The sliding assembly (323) is slidably arranged on the guide rod (322) and the electromagnet (324) is installed on the inner side of the sliding assembly (323); the electromagnet (324) is electrically connected to the circuit board (325); the stainless steel bar (330) is installed on the front end of the support frame (321); the thread pressing actuator assembly (310) comprises a thread pressing line (311) and thread pressing block units (312) which are evenly spaced on the thread pressing line (311) in the horizontal direction and act on the embroidery thread in a direction perpendicular to the panel (110); grooves (3111) for installing the thread pressing block units (312) are evenly spaced on the thread pressing line (311).

2. The thread clamp for an embroidery machine according to claim 1, characterized in that: The wire pressing plate assembly (200) comprises an upper wire pressing plate group and a lower wire pressing plate group; the upper wire pressing plate group is arranged at the wire inlet of the panel (110); the lower wire pressing plate group is arranged at the wire outlet of the panel (110); the upper wire pressing plate group and the lower wire pressing plate group are respectively composed of a plurality of wire pressing units (210) distributed at equal intervals in the horizontal direction; and the wire pressing units (210) are detachably mounted on the panel (110).

3. The thread clamp for an embroidery machine according to claim 2, characterized in that: The wire pressing unit (210) comprises a wire pressing piece (211), an adjusting screw (212) and a deforming spring (213); the adjusting screw (212) penetrates the wire pressing piece (211) and is threadedly connected to the panel (110); the deforming spring (213) is sleeved on the adjusting screw (212) outside the wire pressing piece (211); a wire passing slot hole (214) is provided at the overlapped portion of the wire pressing piece (211) and the embroidery thread passing path.

4. The thread clamp for an embroidery machine according to claim 1, characterized in that: The inner sides of both ends of the pressure strip (311) are detachably connected to the stainless steel strip (330) via a magnet assembly.

5. The thread clamp for an embroidery machine according to claim 1, characterized in that: Handles (3113) are also installed on the outer sides of both ends of the pressure line (311).

6. The thread clamp for an embroidery machine according to claim 1, characterized in that: The wire pressing block unit (312) comprises a wire pressing block (3121), a telescopic spring (3122) and a clamping piece (3123); the wire pressing block (3121) equipped with the telescopic spring (3122) passes through the groove (3111) and is clamped with the clamping piece (3123).

7. The thread clamp for an embroidery machine according to any one of claims 1 to 6, characterized in that: A limit installation groove (350) is formed on the panel (110) on the periphery of the wire pressing actuator assembly (310) and extends outward; a wire passing channel is reserved on the limit installation groove (350) corresponding to the position of the wire passing nail assembly (400).

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