Double-needle-bar driving mechanism of computerized embroidery machine

Abstract

The utility model relates to the technical field of embroidery machines, in particular to a double-needle-bar driving mechanism of a computerized embroidery machine, which comprises a needle bar mechanism, a cover plate is fixed at the front end of the needle bar mechanism, and a lubricating mechanism is arranged on the cover plate and used for lubricating a guide bar for driving a needle bar in the needle bar mechanism. Comprising a storage box fixed to the front end of a cover plate, a first guide rod is slidably installed in the middle of the front end of the storage box in a penetrating mode, a connecting plate is fixed to the rear end of the first guide rod, a plurality of discharging heads are fixed to the connecting plate, a plurality of discharging holes distributed circumferentially are formed in the discharging heads, and the first guide rod is sleeved with a first spring; the discharging assembly comprises a plurality of ring sleeves fixed to the rear end of the storage box, and material pipes are fixed to the two ends of each ring sleeve; precise quantitative supply of the lubricant is achieved through pressing operation, the lubricant covers the surface of the guide rod after being evenly distributed through the annular channel, the stable lubricating effect during high-speed reciprocating motion is ensured, and the durability of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of embroidery machine technology, specifically to a double needle rod drive mechanism for a computerized embroidery machine. Background Technology

[0002] The dual-needle bar drive mechanism of a computerized embroidery machine is a precision mechanical system used to control the synchronous or alternating movement of dual needle bars. It is widely used in high-efficiency embroidery, quilting, and special sewing.

[0003] According to CN117230592A, a cam assembly, needle bar driver, needle bar drive mechanism, and embroidery machine head are disclosed. This technology discloses "a cam assembly, needle bar driver, needle bar drive mechanism, and embroidery machine head, including a needle bar mechanism, a cam assembly, a needle bar driver, and a needle bar linkage rod assembly, a needle bar reset rod assembly, and a thread take-up rod drive rod assembly, all connected to the cam assembly. The needle bar driver is connected to the needle bar linkage rod assembly. The needle bar mechanism has multiple embroidery needle bars and thread take-up rods, and the needle bar driver..." The needle bar reset rod assembly is adapted to the embroidery needle bar. The embroidery needle bar on the needle bar mechanism is driven to move up and down through the needle bar driver and the needle bar reset rod assembly. The thread take-up rod drive rod assembly is connected to the thread take-up rod to drive the thread take-up rod to move. The technical solution has the following effects: "Multiple linkages are driven to move simultaneously through the cam assembly, so that the drive structure of this embroidery machine head for driving the embroidery needle bar and thread take-up rod is concentrated, which makes it easier to control the rotational inertia generated on the power components of the embroidery machine head and ensure the stability of the embroidery machine head under high-speed working conditions."

[0004] The existing dual-needle rod drive mechanism of computerized embroidery machines has obvious deficiencies in lubrication: traditional lubrication methods are mostly manual application or centralized oil supply, which makes it difficult to achieve precise lubrication of the guide rod moving parts. Especially when running at high speed, the lubricant cannot be evenly covered on the surface of the guide rod, resulting in increased local dry friction. Long-term operation can easily lead to problems such as guide rod wear and movement jamming, which directly affects the embroidery accuracy and equipment life. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dual-needle rod drive mechanism for a computerized embroidery machine. By pressing, the lubricant is precisely and quantitatively supplied. After being evenly distributed through an annular channel, the lubricant covers the surface of the guide rod, ensuring stable lubrication during high-speed reciprocating motion and improving the durability of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double needle bar drive mechanism for a computerized embroidery machine, comprising a needle bar mechanism, a cover plate fixed to the front end of the needle bar mechanism, and a lubrication mechanism provided on the cover plate for lubricating the guide rod in the needle bar mechanism used to drive the needle bar. The lubrication mechanism includes:

[0007] The feeding assembly includes a storage box fixed to the front end of the cover plate, a first guide rod slidably installed through the middle of the front end of the storage box, a connecting plate fixed to the rear end of the first guide rod, a number of discharge heads fixed on the connecting plate, a number of discharge holes circumferentially distributed on the discharge heads, and a first spring sleeved on the outside of the first guide rod.

[0008] The discharge assembly includes several rings fixed to the rear end of the storage box. Both ends of the rings are fixed with material tubes, and the front end of the material tubes is connected and fixed to the rear end of the storage box. A cavity is opened inside the rear end of the material tubes.

[0009] Preferably, the feeding assembly further includes a second guide rod that is slidably mounted through both sides of the front end of the storage box, a push plate is fixed between the rear ends of the two second guide rods, a cross plate is fixed between the front ends of the two second guide rods, and a second spring is sleeved on the outside of the second guide rod.

[0010] Preferably, the discharge assembly further includes an annular groove formed in the middle of the inner ring, a plurality of upper discharge ports arranged in a circle are formed at the upper end of the inner ring, and a plurality of lower discharge ports arranged in a circle are formed at the lower end of the inner ring, and the lower ends of the upper discharge ports and the upper ends of the lower discharge ports are connected to the annular groove.

[0011] Preferably, the lubrication mechanism further includes a mounting bracket fixed inside the needle bar mechanism, and a ring is fixed to the bottom of the mounting bracket.

[0012] Preferably, a transmission mechanism is provided at the rear end of the needle bar mechanism, and a control mechanism is provided at the upper end of the needle bar mechanism.

[0013] Preferably, the storage box is made of transparent material and has visible scale lines on the outside.

[0014] Beneficial effects

[0015] This invention provides a dual-needle bar drive mechanism for a computerized embroidery machine. Compared with the prior art, it has the following advantages:

[0016] 1. When the guide rod used to drive the needle bar in the needle bar mechanism needs lubrication, first press the first guide rod and connect it with the connecting plate to drive the discharge head into the cavity; then slowly press the horizontal plate and connect it with the second guide rod to drive the push plate, so that the lubricant in the storage box can be squeezed into the discharge head, and then discharged through the discharge hole and into the discharge assembly, so as to achieve precise quantitative supply of lubricant.

[0017] 2. The lubricant entering the annular groove is discharged outward through the upper and lower discharge ports and falls into the guide rod surface of the needle bar mechanism to drive the needle bar, so as to achieve a uniform circumferential distribution of lubricant on the guide rod surface and meet the needs of high-speed reciprocating motion of the guide rod. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the needle rod mechanism in this utility model;

[0020] Figure 3 This is a schematic diagram of the lubrication mechanism in this utility model;

[0021] Figure 4 This is a cross-sectional view of the lubrication mechanism in this utility model;

[0022] Figure 5 This utility model Figure 4 A schematic diagram of the structure of part A in the middle;

[0023] Figure 6 This is a cross-sectional view of the discharge component in this utility model.

[0024] In the diagram: 1. Needle bar mechanism; 2. Cover plate; 3. Lubrication mechanism; 31. Feeding assembly; 311. Storage box; 312. First guide rod; 313. Connecting plate; 314. Discharge head; 315. Discharge hole; 316. First spring; 317. Second guide rod; 318. Push plate; 319. Horizontal plate; 3110. Second spring; 32. Discharge assembly; 321. Ring sleeve; 322. Material tube; 323. Cavity; 324. Annular groove; 325. Upper discharge port; 326. Lower discharge port; 33. Mounting bracket; 4. Transmission mechanism; 5. Control mechanism. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 6 This utility model provides a technical solution: a double needle bar drive mechanism for a computerized embroidery machine, including a needle bar mechanism 1, a cover plate 2 fixed to the front end of the needle bar mechanism 1, and a lubrication mechanism 3 provided on the cover plate 2 for lubricating the guide rod in the needle bar mechanism 1 used to drive the needle bar. The lubrication mechanism 3 includes:

[0027] The feeding assembly 31 includes a storage box 311 fixed to the front end of the cover plate 2. A first guide rod 312 is slidably installed through the middle of the front end of the storage box 311. A connecting plate 313 is fixed to the rear end of the first guide rod 312. A plurality of discharge heads 314 are fixed on the connecting plate 313. A plurality of discharge holes 315 are opened on the discharge heads 314 in a circular distribution. A first spring 316 is sleeved on the outside of the first guide rod 312.

[0028] The discharge assembly 32 includes several rings 321 fixed to the rear end of the storage box 311. The two ends of the rings 321 are fixed with material tubes 322, and the front end of the material tubes 322 is connected and fixed to the rear end of the storage box 311. A cavity 323 is opened inside the rear end of the material tubes 322.

[0029] In this embodiment, when the guide rod used to drive the needle bar in the needle bar mechanism 1 needs lubrication, first press the first guide rod 312 and cooperate with the connecting plate 313 to drive the discharge head 314 into the cavity 323; then slowly press the horizontal plate 319 and cooperate with the second guide rod 317 to drive the push plate 318, so that the lubricant in the storage box 311 can be squeezed into the discharge head 314, and then discharged through the discharge hole 315 and enter the discharge assembly 32, so as to realize the precise quantitative supply of lubricant.

[0030] Specifically, the feeding assembly 31 also includes a second guide rod 317 that is slidably installed on both sides of the front end of the storage box 311. A push plate 318 is fixed between the rear ends of the two second guide rods 317, and a cross plate 319 is fixed between the front ends of the two second guide rods 317. A second spring 3110 is sleeved on the outside of the second guide rod 317.

[0031] In this embodiment, after the lubricant is added, the first guide rod 312 is released, and the first guide rod 312 is pushed by the pressure of the first spring 316 to drive the discharge head 314 on the connecting plate 313 to disengage from the cavity 323; then the pressed horizontal plate 319 is released, and the horizontal plate 319 is pushed by the pressure of the second spring 3110. The horizontal plate 319 drives the push plate 318 to reset through the second guide rod 317, ensuring that the inside of the storage box 311 is sealed and preventing lubricant leakage or oxidation.

[0032] Specifically, the discharge assembly 32 also includes an annular groove 324 formed in the middle of the ring 321. The upper end of the ring 321 is provided with several upper discharge ports 325 distributed in a circle, and the lower end of the ring 321 is provided with several lower discharge ports 326 distributed in a circle. The lower end of the upper discharge port 325 and the upper end of the lower discharge port 326 are both connected to the annular groove 324.

[0033] In this embodiment, the lubricant entering the annular groove 324 is discharged outward through the upper discharge port 325 and the lower discharge port 326, and falls into the guide rod surface of the needle rod mechanism 1 to drive the needle rod, so as to achieve a uniform circumferential distribution of lubricant on the guide rod surface and meet the needs of high-speed reciprocating motion of the guide rod.

[0034] Specifically, the lubrication mechanism 3 also includes a mounting bracket 33 fixed inside the needle bar mechanism 1, and a ring 321 fixed to the bottom of the mounting bracket 33.

[0035] In this embodiment, the ring 321 is reinforced by the mounting bracket 33 to prevent the ring 321 from vibrating or shifting during high-speed movement, thus ensuring the accuracy of the lubricant spray path.

[0036] Specifically, a transmission mechanism 4 is provided at the rear end of the needle bar mechanism 1, and a control mechanism 5 is provided at the upper end of the needle bar mechanism 1.

[0037] Specifically, the storage box 311 is made of transparent material and has visible scale lines on the outside.

[0038] In this embodiment, the transparent storage box 311 is designed with scale lines, allowing operators to intuitively grasp the remaining amount of lubricant and avoid lubrication failure due to lubricant depletion.

[0039] The working principle and usage process of this utility model are as follows: First, when the guide rod used to drive the needle bar in the needle bar mechanism 1 needs lubrication, press down the first guide rod 312 and cooperate with the connecting plate 313 to drive the discharge head 314 into the cavity 323; then slowly press down the horizontal plate 319 and cooperate with the second guide rod 317 to drive the push plate 318, so that the lubricant in the storage box 311 can be squeezed into the discharge head 314, and then discharged through the discharge hole 315 and enter the discharge assembly 32.

[0040] The lubricant entering the annular groove 324 is discharged outward through the upper outlet 325 and the lower outlet 326, and falls into the guide rod surface of the needle rod mechanism 1 to drive the needle rod, so as to achieve a uniform circumferential distribution of lubricant on the guide rod surface and meet the needs of high-speed reciprocating motion of the guide rod.

[0041] After the lubricant is added, release the first guide rod 312, and the pressure of the first spring 316 pushes the first guide rod 312 to drive the discharge head 314 on the connecting plate 313 out of the cavity 323; then release the pressed horizontal plate 319 and push the horizontal plate 319 with the pressure of the second spring 3110. The horizontal plate 319 drives the push plate 318 to reset through the second guide rod 317, ensuring that the inside of the storage box 311 is sealed and preventing lubricant leakage or oxidation.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double needle bar driving mechanism of a computerized embroidery machine, comprising a needle bar mechanism (1) having a cover plate (2) fixed at the front end thereof, characterized in that: The cover plate (2) is provided with a lubricating mechanism (3) for lubricating the guide rod for driving the needle rod in the needle rod mechanism (1), and the lubricating mechanism (3) comprises: The feeding assembly (31) comprises a storage box (311) fixed at the front end of the cover plate (2), a first guide rod (312) is slidably installed in the middle of the front end of the storage box (311), a connecting plate (313) is fixed at the rear end of the first guide rod (312), a plurality of discharge heads (314) are fixed on the connecting plate (313), a plurality of discharge holes (315) are arranged in the circumferential direction on the discharge heads (314), and a first spring (316) is installed outside the first guide rod (312); The discharge assembly (32) comprises a plurality of ring sleeves (321) fixed at the rear end of the storage box (311), and a material pipe (322) is fixed at the two ends of the ring sleeve (321) and communicated with the rear end of the storage box (311), and a cavity (323) is formed in the rear end of the material pipe (322).

2. A dual needle bar drive mechanism for a computerized embroidery machine as claimed in claim 1, wherein: The feeding assembly (31) further comprises second guide rods (317) slidably installed at the two sides of the front end of the storage box (311), a push plate (318) is fixed between the rear ends of the two second guide rods (317), a horizontal plate (319) is fixed between the front ends of the two second guide rods (317), and a second spring (3110) is installed outside the second guide rod (317).

3. The dual needle bar drive mechanism of claim 1, wherein: The discharge assembly (32) further comprises an annular groove (324) formed in the middle of the inner side of the ring sleeve (321), a plurality of upper discharge ports (325) are formed in the upper end of the inner side of the ring sleeve (321), a plurality of lower discharge ports (326) are formed in the lower end of the inner side of the ring sleeve (321), and the lower end of the upper discharge port (325) and the upper end of the lower discharge port (326) are communicated with the annular groove (324).

4. The dual needle bar drive mechanism of claim 1, wherein: The lubricating mechanism (3) further comprises a mounting frame (33) fixed in the needle rod mechanism (1), and the ring sleeve (321) is fixed at the bottom of the mounting frame (33).

5. The dual needle bar drive mechanism of claim 1, wherein: The rear end of the needle rod mechanism (1) is provided with a transmission mechanism (4), and the upper end of the needle rod mechanism (1) is provided with a control mechanism (5).

6. A dual needle bar drive mechanism for a computerized embroidery machine according to claim 1, characterized in that: The storage box (311) is made of transparent material, and the outer side is provided with visible scale lines.

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