A machine head integrates independent engraving holes

Abstract

The application discloses an embroidery machine head with integrated independent hole carving, which comprises a cloth pricking and thread lifting mechanism and a hole carving mechanism installed on a machine shell. The cloth pricking and thread lifting mechanism comprises a cloth pricking and thread lifting main shaft, an embroidery assembly, and an embroidery transmission assembly connecting the embroidery assembly and the cloth pricking and thread lifting main shaft. The hole carving mechanism comprises a hole carving main shaft, a hole carving cutter, and a hole carving transmission assembly connecting the hole carving main shaft and the hole carving cutter. The hole carving transmission assembly and the hole carving cutter are arranged on the side of the embroidery assembly, and are independent of the cloth pricking and thread lifting mechanism. The hole carving mechanism is independent of the cloth pricking and thread lifting mechanism, especially the hole carving transmission assembly is independent of the embroidery transmission assembly, and the color changing does not interfere with each other. The independent hole carving can be parameterized to adjust the hole carving depth, change the hole carving size, expand the hole carving application, achieve better hole carving effect, improve the hole carving efficiency, and expand the embroidery machine function.

Description

TECHNICAL FIELD

[0001] The present application relates to embroidery equipment, in particular to an embroidery machine head. BACKGROUND

[0002] With the progress of embroidery machine technology and the expansion of application fields, a new embroidery process has emerged, which is to engrave holes on the fabric and then embroider, producing a fabric with hollows and embroidery. In the traditional process, the machine needle is broken, the warp and weft of the fabric are broken by the broken needle, and the fabric is then embroidered at another needle position to produce a hollow effect. The broken warp and weft method is prone to fabric wrinkles and inconsistent perforation effect. The efficiency is low when the color is changed for embroidery.

[0003] With the development of technology, a special engraving knife is added to the embroidery machine, which can engrave holes through color changing and 1-needle flat embroidery without color changing function. The former has low efficiency, and the latter has single function.

[0004] The patent document with the application publication number CN 115652553 A discloses an embroidery machine head with multi-color embroidery and independent hole engraving functions, which includes a head device, a needle bar holder device, and a color changing device. The needle bar holder device is fixed on the color changing device, and the color changing device is installed on the head device. The head device includes a machine shell, a middle and lower part of the front side of the machine shell is fixed with a guide assembly, the guide assembly includes a vertical engraving hole guide shaft and an embroidery guide shaft, the right end of the engraving hole main shaft is fixedly connected with an engraving hole execution assembly, and the lower end of the engraving hole execution assembly is pivotally connected with an engraving hole driving block. The engraving hole driving block is inserted into the engraving hole guide shaft.

[0005] The embroidery machine head described in the above patent document has both color changing and independent hole engraving functions. The head can realize independent hole engraving, and after the hole is engraved, embroidery can be performed. The position of the needle bar holder is switched by using the color changing component, and multi-color embroidery can be realized. However, the embroidery machine head can only be matched with 13 or 24 needle positions for engraving, and it is difficult to realize independent hole engraving function for any needle position. SUMMARY

[0006] The technical problem solved by the present application is how to realize independent hole engraving for any needle position.

[0007] To solve the above technical problems, the present application provides the following technical solution: an embroidery machine head with integrated independent hole engraving, which includes a fabric piercing and thread lifting mechanism and an engraving mechanism installed on a machine shell. The fabric piercing and thread lifting mechanism includes a fabric piercing and thread lifting main shaft, an embroidery assembly, and an embroidery transmission assembly connecting the embroidery assembly and the fabric piercing and thread lifting main shaft. The engraving mechanism includes an engraving hole main shaft, an engraving knife, and an engraving transmission assembly connecting the engraving hole main shaft and the engraving knife. The engraving transmission assembly and the engraving knife are arranged beside the embroidery assembly, and both are independent of the fabric piercing and thread lifting mechanism.

[0008] The needle selection and thread tension main shaft drives the embroidery assembly through the embroidery transmission assembly, and the embroidery assembly embroiders on the fabric. The carving hole main shaft drives the carving hole cutter through the carving hole transmission assembly, and the carving hole cutter carves holes on the fabric.

[0009] The carving hole mechanism of the present application is independent of the needle selection and thread tension mechanism, especially the carving hole transmission assembly is independent of the embroidery transmission assembly, and does not interfere with color changing, thereby providing a structural basis for realizing that any needle position can be matched with an independent carving hole, and facilitating full utilization of all needle positions to realize more colorful embroidery.

[0010] The independent carving hole can be parameterized to adjust the carving hole depth, change the carving hole size, expand the carving hole application, realize better carving hole effect, improve the carving hole efficiency, and expand the function of the embroidery machine.

[0011] The carving hole transmission assembly comprises a carving hole driving arm connected with the carving hole main shaft, a carving hole large connecting rod connected with the carving hole driving arm, and a carving hole cutter rod connected with the carving hole large connecting rod, wherein the carving hole cutter is arranged on the carving hole cutter rod, and a carving hole cutter rod guide plate for guiding the movement of the carving hole cutter rod is arranged on the machine shell. The carving hole driving arm is connected with the carving hole large connecting rod through a bearing, the carving hole large connecting rod is connected with the carving hole cutter rod through a carving hole cutter rod connecting piece, wherein the carving hole large connecting rod is hinged with the carving hole cutter rod connecting piece, and the carving hole cutter rod connecting piece is fixedly connected with the carving hole cutter rod. The carving hole cutter is fixed at the bottom end of the carving hole cutter rod through a carving hole cutter chuck, and the carving hole cutter chuck clamps the carving hole cutter at the bottom end of the carving hole cutter rod.

[0012] The carving hole main shaft drives the carving hole driving arm, the carving hole driving arm drives the carving hole large connecting rod, and the carving hole large connecting rod drives the carving hole cutter rod. Under the guidance of the carving hole cutter rod guide plate, the carving hole cutter rod linearly rises and falls, and the carving hole cutter linearly rises and falls.

[0013] The carving hole cutter rod is matched with a carving hole presser foot assembly and a carving hole presser foot spring, and the carving hole presser foot spring abuts against the carving hole presser foot assembly. The top end of the carving hole presser foot spring is fixedly connected with the carving hole cutter rod, and the bottom end of the carving hole presser foot spring abuts against the carving hole presser foot assembly. The carving hole cutter rod is provided with a carving hole presser foot buffer pad. In work, when the carving hole presser foot spring drives the carving hole presser foot assembly to reset downward, the carving hole presser foot assembly abuts against the carving hole presser foot buffer pad. The carving hole cutter rod is provided with a carving hole presser foot guide plate, and the carving hole presser foot guide plate guides the lifting of the carving hole presser foot assembly.

[0014] The embroidery transmission assembly comprises a needle bar eccentric cam mounted on a needle bar lifting shaft, a connecting rod assembly matched with the needle bar eccentric cam, a three-eye connecting rod connected with the connecting rod assembly, a small connecting rod connected with the three-eye connecting rod, and a needle bar driving block connected with the small connecting rod, wherein the needle bar driving block is movably matched with a needle bar driving shaft, and the embroidery assembly is connected with the needle bar driving block. The middle eye of the three-eye connecting rod is hingedly connected with a machine shell through a pin, one eye of the three-eye connecting rod is hingedly connected with the connecting rod assembly, and the last eye of the three-eye connecting rod is hingedly connected with the small connecting rod. Under the driving of the needle bar eccentric cam, the small connecting rod drives the needle bar driving block to linearly lift along the needle bar driving shaft, and the needle bar driving block drives the embroidery assembly to linearly lift. BRIEF DESCRIPTION OF DRAWINGS

[0015] The application will be further described below in combination with the drawings:

[0016] Figure 1 It is a schematic view of a machine head integrated with independent hole carving;

[0017] Figure 2 It is an exploded view of a machine head integrated with independent hole carving;

[0018] Figure 3 It is an exploded view of a needle bar lifting mechanism and a hole carving mechanism.

[0019] Explanation of symbols in the drawings:

[0020] 10, machine shell;

[0021] 20, needle bar lifting mechanism; 21, needle bar lifting shaft; 22, embroidery assembly; 220, needle bar rack of the embroidery assembly; 23, needle bar eccentric cam; 24, connecting rod assembly; 25, three-eye connecting rod; 26, small connecting rod; 27, needle bar driving block; 28, needle bar driving shaft;

[0022] 201, thread lifting cam; 202, thread lifting connecting rod; 203, thread lifting shaft; 204, thread lifting shaft sleeve; 205, thread lifting rod; 206, thread lifting cam mounting plate;

[0023] 30, hole carving mechanism; 31, hole carving shaft; 32, hole carving cutter; 321, hole carving cutter chuck; 33, hole carving driving arm; 34, hole carving large connecting rod; 35, hole carving cutter rod; 351, hole carving cutter rod connecting piece; 36, hole carving cutter rod guide plate; 37, hole carving presser foot assembly; 371, hole carving presser foot buffer pad; 372, hole carving presser foot guide plate; 38, hole carving presser foot spring; 39, hole carving needle plate;

[0024] 41, hook cutter shaft; 51, color changing pull rod; 52, color changing guide rail; 61, presser foot shaft. DETAILED DESCRIPTION

[0025] In combination with Figure 1 , Figure 3An embroidery head with an integrated independent engraving hole includes a needle thread take-up mechanism 20 and an engraving hole mechanism 30 mounted on a housing 10.

[0026] Combination Figure 1 , Figure 3 The embroidery thread take-up mechanism 20 includes an embroidery thread take-up spindle 21, an embroidery assembly 22, and an embroidery transmission assembly that connects the embroidery assembly and the embroidery thread take-up spindle.

[0027] The embroidery take-up spindle 21 drives the embroidery component 22 through the embroidery transmission component, and the embroidery component embroiders on the fabric.

[0028] The embroidery transmission assembly includes a needle bar eccentric cam 23 mounted on the needle bar take-up spindle 21, a connecting rod assembly 24 cooperating with the needle bar eccentric cam, a three-eye connecting rod 25 connected to the connecting rod assembly, a small connecting rod 26 connected to the three-eye connecting rod, and a needle bar drive block 27 connected to the small connecting rod. The needle bar drive block is movably fitted on the needle bar drive shaft 28, and the embroidery assembly 22 is connected to the needle bar drive block.

[0029] The middle eye of the three-eye connecting rod 25 is hinged to the machine housing 10 by a pin, one eye of the three-eye connecting rod 25 is hinged to the connecting rod assembly 24, and the last eye of the three-eye connecting rod is hinged to the small connecting rod 26. Driven by the needle bar eccentric cam 23, the small connecting rod 26 drives the needle bar drive block 27 to move linearly up and down along the needle bar drive shaft 28, and the needle bar drive block 27 drives the embroidery assembly 22 to move linearly up and down.

[0030] The barbed wire take-up mechanism 20 includes a take-up cam 201 fitted on the barbed wire take-up main shaft 21, a take-up connecting rod 202 connected to the take-up cam, a take-up main shaft 203 connected to the take-up connecting rod, a take-up shaft sleeve 204 and a take-up rod 205 disposed on the take-up main shaft. The take-up cam 201 is mounted on the barbed wire take-up main shaft 21 via a take-up cam mounting plate 206.

[0031] Combination Figure 1 , Figure 3 The engraving mechanism 30 includes an engraving spindle 31, an engraving knife 32, and an engraving transmission assembly connecting the engraving spindle and the engraving knife. The engraving transmission assembly and the engraving knife are located on the side of the embroidery assembly, and both the engraving transmission assembly and the engraving knife are independent of the embroidery thread take-up mechanism.

[0032] The main shaft 31 drives the cutting tool 32 via the cutting tool transmission assembly, which cuts holes in the fabric. The cutting tool mechanism 30 is independent of the stitch take-up mechanism 20 and does not interfere with color changing, enabling independent cutting at any needle position and making full use of all needle positions to achieve richer colors in embroidery. The depth and size of the independent cutting holes can be parametrically adjusted, expanding the application of cutting tools.

[0033] The engraving hole transmission assembly comprises an engraving hole driving arm 33 connected with the engraving hole main shaft 31, an engraving hole big connecting rod 34 connected with the engraving hole driving arm, and an engraving hole cutter bar 35 connected with the engraving hole big connecting rod. The engraving hole cutter is arranged on the engraving hole cutter bar. The casing 10 is provided with an engraving hole cutter bar guide plate 36 for guiding the movement of the engraving hole cutter bar.

[0034] The engraving hole driving arm 33 is connected with the engraving hole big connecting rod 34 through a bearing. The engraving hole big connecting rod is connected with the engraving hole cutter bar 35 through an engraving hole cutter bar connecting piece 351. The engraving hole big connecting rod 34 is hinged with the engraving hole cutter bar connecting piece 351, and the engraving hole cutter bar connecting piece 351 is fixedly connected with the engraving hole cutter bar 35. The engraving hole cutter 32 is fixed at the bottom end of the engraving hole cutter bar 35 through an engraving hole cutter chuck 321, which clamps the engraving hole cutter 32 at the bottom end of the engraving hole cutter bar 35.

[0035] The engraving hole cutter bar 35 is matched with an engraving hole presser assembly 37 and an engraving hole presser spring 38. The engraving hole presser spring is abutted with the engraving hole presser assembly. The engraving hole cutter bar 35 is provided with an engraving hole presser buffer pad 371. During work, when the engraving hole presser spring 38 drives the engraving hole presser assembly 37 to reset downward, the engraving hole presser assembly is abutted against the engraving hole presser buffer pad 371. The engraving hole cutter bar 35 is provided with an engraving hole presser guide plate 372, which guides the lifting of the engraving hole presser assembly 37.

[0036] The above is only the preferred embodiment of the present application. For those skilled in the art, the specific embodiment and application range can be changed according to the idea of the present application. The content of the specification should not be understood as a limitation of the present application.

Claims

1. An embroidery head with an integrated independent engraving hole, comprising a fabric thread-taking mechanism (20) and an engraving hole mechanism (30) mounted on a housing (10), wherein the fabric thread-taking mechanism comprises a fabric thread-taking spindle (21), an embroidery assembly (22), and an embroidery transmission assembly connecting the embroidery assembly and the fabric thread-taking spindle; and the engraving hole mechanism comprises an engraving hole spindle (31), an engraving hole cutter (32), and an engraving hole transmission assembly connecting the engraving hole spindle and the engraving hole cutter, characterized in that: The hole-carving transmission component and the hole-carving knife are located on the side of the embroidery component. The hole-carving transmission component and the hole-carving knife are independent of the embroidery thread take-up mechanism and do not interfere with the color change, so that the hole-carving can be carried out independently at any needle position. The engraving transmission assembly includes an engraving drive arm (33) connected to the engraving spindle (31), an engraving connecting rod (34) connected to the engraving drive arm, and an engraving cutter bar (35) connected to the engraving connecting rod. The engraving cutter is mounted on the engraving cutter bar, and the housing (10) is provided with an engraving cutter bar guide plate (36) to guide the movement of the engraving cutter bar. The engraving drive arm is connected to the engraving main connecting rod via a bearing. The engraving main connecting rod is connected to the engraving cutter rod via an engraving cutter rod connector. The engraving main connecting rod and the engraving cutter rod connector are hinged together, and the engraving cutter rod connector is fixedly connected to the engraving cutter rod. The engraving cutter is fixed to the bottom end of the engraving cutter rod via an engraving cutter chuck, which clamps the engraving cutter to the bottom end of the engraving cutter rod. The engraving tool holder (35) is fitted with an engraving foot assembly (37) and an engraving foot spring (38), and the engraving foot spring abuts against the engraving foot assembly; The top end of the engraving foot spring is fixedly connected to the engraving cutter bar, and the bottom end of the engraving foot spring abuts against the engraving foot assembly. The engraving cutter bar is equipped with an engraving foot buffer pad. During operation, when the engraving foot spring drives the engraving foot assembly to return to its original position downwards, the engraving foot assembly presses against the engraving foot buffer pad. The engraving cutter bar is equipped with an engraving foot guide plate, which guides the lifting and lowering of the engraving foot assembly.

2. The embroidery machine head with integrated independent engraving holes as described in claim 1, characterized in that: The embroidery transmission assembly includes a needle bar eccentric cam (23) mounted on the needle bar take-up spindle (21), a connecting rod assembly (24) cooperating with the needle bar eccentric cam, a three-eyed connecting rod (25) connected to the connecting rod assembly, a small connecting rod (26) connected to the three-eyed connecting rod, and a needle bar drive block (27) connected to the small connecting rod. The needle bar drive block is movably fitted on the needle bar drive shaft (28), and the embroidery assembly (22) is connected to the needle bar drive block.

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