阅读说明：本技术 一种双皮带可升降压脚机构 (Double-belt liftable presser foot mechanism ) 是由 余立科 侯乐飞 邱建霖 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种双皮带可升降压脚机构,包括压脚驱动组件、皮带传动组件、动力组件和针杆压脚组件,所述压脚驱动组件包括压脚驱动轴和压脚驱动器,所述压脚驱动轴竖直固定在机头的机壳之内且与主动轴相平行,所述压脚驱动器滑动固定在压脚驱动轴和主动轴上,所述皮带传动组件包括主动传动机构和从动传动机构,所述动力组件固定在机壳之内并驱动主动传动机构内的主动传动皮带转动,所述主动传动皮带带动从动传动机构内的从动传动皮带转动,所述压脚驱动器与从动传动皮带相连接并由从动传动皮带带动而沿着压脚驱动轴和主动轴上下运动,所述针杆压脚组件与压脚驱动器可拆卸固定,通过双皮带结构可使整体受力更为均匀,维修更换更为方便。(The invention discloses a double-belt liftable presser foot mechanism, which comprises a presser foot driving component, a belt transmission component, a power component and a needle bar presser foot component, wherein the presser foot driving component comprises a presser foot driving shaft and a presser foot driver, the presser foot driving shaft is vertically fixed in a machine shell of a machine head and is parallel to a driving shaft, the presser foot driver is fixed on the presser foot driving shaft and the driving shaft in a sliding manner, the belt transmission component comprises a driving transmission mechanism and a driven transmission mechanism, the power component is fixed in the machine shell and drives the driving transmission belt in the driving transmission mechanism to rotate, the driving transmission belt drives the driven transmission belt in the driven transmission mechanism to rotate, the presser foot driver is connected with the driven transmission belt and is driven by the driven transmission belt to move up and down along the presser foot driving shaft and the driving shaft, the presser foot bar component is, the whole stress can be more uniform through the double belt structures, and the maintenance and the replacement are more convenient.)

1. The utility model provides a two belt liftable presser foot mechanisms which characterized in that: the presser foot drive mechanism comprises a presser foot drive assembly (13), a belt transmission assembly (14), a power assembly (15) and a needle rod presser foot assembly (16), wherein the presser foot drive assembly (13) comprises a presser foot drive shaft (131) and a presser foot driver (132), the presser foot drive shaft (131) is vertically fixed in a machine shell (11) of a machine head (1) and is parallel to a drive shaft (12), the presser foot driver (132) is fixed on the presser foot drive shaft (131) and the drive shaft (12) in a sliding mode, the belt transmission assembly (14) comprises a driving transmission mechanism and a driven transmission mechanism, the power assembly (15) is fixed in the machine shell (11) and drives a driving transmission belt (146) in the driving transmission mechanism to rotate, the driving transmission belt (146) drives a driven transmission belt (143) in the driven transmission mechanism to rotate, and the presser foot driver (132) is connected with the driven transmission belt (143) and driven by the driven transmission belt (143) to rotate along (131) And the driving shaft (12) moves up and down, and the needle bar presser foot component (16) is detachably fixed with the presser foot driver (132).

2. The double-belt liftable presser foot mechanism of claim 1, wherein: the presser foot driving assembly (13) further comprises a pressing plate (133), and the pressing plate (133) is detachably fixed on one side of the presser foot driver (132) and used for pressing and fixing the driven transmission belt (143) on the outer wall of the presser foot driver (132).

3. The double-belt liftable presser foot mechanism of claim 2, wherein: the side edges of the presser foot driver (132) close to the driven transmission belt (143) are respectively provided with convex edge parts (1322) in parallel, belt clamp grooves are formed among the convex edge parts (1322), and the driven transmission belt (143) is positioned in the belt clamp grooves.

4. A double-belt liftable presser foot mechanism as claimed in claim 3, wherein: the upper end and the lower end of the convex edge part (1322) are respectively provided with an end lug (1323), a pressing plate clamping groove is formed between the end lugs (1323) of the same convex edge part (1322), and the pressing plate (133) is positioned in the pressing plate clamping groove.

5. The double-belt liftable presser foot mechanism of claim 1, wherein: the driven transmission mechanism comprises a driven belt wheel fixing pin (141), a transmission mechanism support (142), a driven transmission belt (143) and a presser foot driven belt wheel (145), the transmission mechanism support (142) is fixed in the machine shell (11), a plurality of driven belt wheel fixing pins (141) are respectively fixed on the same side of the transmission mechanism support (142), a plurality of presser foot driven belt wheels (145) are respectively rotatably fixed on the driven belt wheel fixing pins (141) through bearings, at least two presser foot driven belt wheels (145) are positioned on the same vertical line parallel to the presser foot driving shaft (131), the driven transmission belt (143) is sleeved outside the presser foot driven belt wheels (145), the driving transmission mechanism comprises a presser foot transmission belt wheel (144) and a driving transmission belt (146), the power assembly (15) comprises a motor base fixing plate (151) and a closed-loop motor (152), the motor base fixing plate (151) is located on the rear side of the transmission mechanism support (142), the closed-loop motor (152) is fixed on the rear side of the motor base fixing plate (151), the presser foot transmission belt wheel (144) is located in an opening (1421) of the transmission mechanism support (142) and is connected with an output shaft of the closed-loop motor (152), and the driving transmission belt (146) is sleeved outside the presser foot transmission belt wheel (144) and one of the presser foot driven belt wheels (145).

6. The double-belt liftable presser foot mechanism of claim 5, wherein: the driving transmission mechanism further comprises a tension wheel (147) and a tension wheel pin (148), the tension wheel pin (148) is fixed on the transmission mechanism support (142) and located on the same side with the driven pulley fixing pin (141), and the tension wheel (147) is rotatably fixed on the tension wheel pin (148) through a bearing.

7. The double-belt liftable presser foot mechanism of claim 1, wherein: the needle bar presser foot component (16) comprises a presser foot fixing shaft (161), a presser foot positioning block (162) and a presser foot body (163), the presser foot fixing shaft (161) is arranged in a shaft hole (211) of a frame body (21) of the needle bar frame (2) in a vertically sliding mode and is parallel to a presser foot driving shaft (131), the presser foot positioning block (162) is fixed to the upper end of the presser foot fixing shaft (161), the presser foot positioning block (162) is connected with a presser foot driver (132) in a clamping mode, and the presser foot body (163) is fixed to the bottom end of the presser foot fixing shaft (161).

8. The double-belt liftable presser foot mechanism of claim 7, wherein: the side of the presser foot positioning block (162) is provided with a sliding sleeve (1621), an embroidery needle assembly (22) is vertically arranged in the needle bar frame (2), a needle bar (221) of the embroidery needle assembly (22) is parallel to the presser foot fixing shaft (161), and the sliding sleeve (1621) is fixed on the needle bar (221) in a sliding manner.

9. The double-belt liftable presser foot mechanism of claim 7, wherein: the outer wall of the presser foot driver (132) is provided with a clamping plate (1321), the outer wall of the presser foot positioning block (162) is provided with a clamping block (1622), and the clamping block (1622) is clamped and fixed with the clamping plate (1321).

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of embroidery machines, in particular to the technical field of a double-belt liftable presser foot mechanism.

[ background of the invention ]

The presser foot mechanism of traditional embroidery machine is that the up-and-down motion of presser foot up-and-down motion's orbit realizes the up-and-down motion of presser foot through fixed cam curve, if realize that different surface fabric thickness need manual go to adjust the presser foot height of every aircraft nose, and is inefficient, and the presser foot mainly is pushed down fixedly through the presser foot spring in addition, and is generally unsatisfactory to embroidering thick material effect.

[ summary of the invention ]

The invention aims to solve the problems in the prior art, and provides a double-belt liftable presser foot mechanism which is high in overall transmission efficiency and high in adjustment precision, enables the overall stress to be more uniform through the double-belt structure, and is more convenient to replace in subsequent maintenance.

In order to realize the aim, the invention provides a double-belt liftable presser foot mechanism, which comprises a presser foot driving component, a belt transmission component, a power component and a needle rod presser foot component, the presser foot driving component comprises a presser foot driving shaft and a presser foot driver, the presser foot driving shaft is vertically fixed in the machine shell of the machine head and is parallel to the driving shaft, the presser foot driver is fixed on the presser foot driving shaft and the driving shaft in a sliding way, the belt transmission assembly comprises a driving transmission mechanism and a driven transmission mechanism, the power component is fixed in the shell and drives the driving transmission belt in the driving transmission mechanism to rotate, the needle bar presser foot component is detachably fixed with the presser foot driver.

Preferably, the presser foot drive assembly further comprises a pressure plate which is detachably fixed on one side of the presser foot driver and used for pressing and fixing the driven transmission belt on the outer wall of the presser foot driver.

Preferably, the presser foot driver is provided with convex edge parts in parallel at the side edges close to the driven transmission belt, a belt clamp groove is formed between the convex edge parts, and the driven transmission belt is positioned in the belt clamp groove.

Preferably, the upper end and the lower end of the convex edge part are respectively provided with an end lug, a pressing plate clamping groove is formed between the end lugs of the same convex edge part, and the pressing plate is positioned in the pressing plate clamping groove.

Preferably, the driven transmission mechanism comprises a driven belt wheel fixing pin, a transmission mechanism support, a driven transmission belt and a presser foot driven belt wheel, the transmission mechanism support is fixed in the casing, a plurality of driven belt wheel fixing pins are respectively fixed on the same side of the transmission mechanism support, a plurality of presser foot driven belt wheels are respectively fixed on the driven belt wheel fixing pins in a rotatable manner through bearings, at least two presser foot driven belt wheels are positioned on the same vertical line parallel to the presser foot driving shaft, the driven transmission belt is sleeved outside the presser foot driven belt wheel, the driving transmission mechanism comprises a presser foot transmission belt wheel and a driving transmission belt, the power assembly comprises a motor base fixing plate and a closed-loop motor, the motor base fixing plate is positioned at the rear side of the transmission mechanism support, the closed-loop motor is fixed at the rear side of the motor base fixing plate, the presser foot transmission belt wheel is positioned in the opening of the, the driving transmission belt is sleeved outside the presser foot transmission belt wheel and one of the presser foot driven belt wheels.

Preferably, the driving transmission mechanism further comprises a tension wheel and a tension wheel pin, the tension wheel pin is fixed on the transmission mechanism support and located on the same side with the driven pulley fixing pin, and the tension wheel is rotatably fixed on the tension wheel pin through a bearing.

Preferably, the needle bar presser foot assembly comprises a presser foot fixing shaft, a presser foot positioning block and a presser foot body, the presser foot fixing shaft is arranged in the shaft hole of the frame body of the needle bar frame in a vertically sliding mode and is parallel to the presser foot driving shaft, the presser foot positioning block is fixed at the upper end of the presser foot fixing shaft, the presser foot positioning block is connected with the presser foot driver in a clamping mode, and the presser foot body is fixed at the bottom end of the presser foot fixing shaft.

Preferably, the side face of the presser foot positioning block is provided with a sliding sleeve, an embroidery needle assembly is vertically arranged in the needle bar frame, a needle bar of the embroidery needle assembly is parallel to the presser foot fixing shaft, and the sliding sleeve is fixed on the needle bar in a sliding manner.

Preferably, the outer wall of the presser foot driver is provided with a clamping plate, the outer wall of the presser foot positioning block is provided with a clamping block, and the clamping block is clamped and fixed with the clamping plate.

The invention has the beneficial effects that: according to the invention, the closed-loop motor drives the driving transmission belt in the driving transmission mechanism to rotate, and then the driving transmission belt drives the driven transmission belt to rotate, so that the presser foot driver fixed on the vertical belt section of the driven transmission belt moves up and down along the driving shaft and the presser foot driving shaft, and thus the needle rod presser foot component can be quickly adjusted to move up and down to any suitable position according to the requirements of different embroidery products, the whole transmission efficiency is high, the adjustment precision is high, the whole stress can be more uniform through the double belt structures, and the replacement in subsequent maintenance is more convenient; the convex edge part is arranged on the presser foot driver and the belt clamp groove is formed, so that the driven transmission belt is convenient to mount and position; the end lug is arranged on the convex edge part to form the pressing plate clamping groove, so that the connection stability between the pressing foot driver and the pressing plate is effectively enhanced; the height of the presser foot body is effectively positioned by arranging the presser foot positioning block; through set up the sliding sleeve on the presser foot locating piece, make its in-process of up-and-down motion, can slide from top to bottom along the needle bar, improve the stability of motion.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a front view of a double-belt liftable presser foot mechanism of the present invention mounted within a head and a needle bar frame;

FIG. 2 is a left side view of a double-belt liftable presser foot mechanism of the present invention mounted within a head and a needle bar frame;

FIG. 3 is a right side view of a double-belt liftable presser foot mechanism of the present invention mounted within a head and needle bar frame;

FIG. 4 is an exploded schematic view of a handpiece with a presser foot drive assembly, a belt drive assembly and a power assembly installed;

FIG. 5 is an enlarged schematic view at A of FIG. 4;

FIG. 6 is a perspective view of the needle bar frame with the needle bar presser foot assembly mounted thereto;

FIG. 7 is a perspective view of the needle bar presser foot assembly;

fig. 8 is an exploded schematic view of the needle bar presser foot assembly.

In the figure: 1-machine head, 11-machine shell, 12-driving shaft, 13-presser foot driving component, 131-presser foot driving shaft, 132-presser foot driver, 1321-clamping plate, 1322-convex edge portion, 1323-end lug, 133-pressing plate, 14-belt driving component, 141-driven pulley fixing pin, 142-driving mechanism support, 1421-opening, 143-driven driving belt, 144-presser foot driving pulley, 145-presser foot driven pulley, 146-driving belt, 147-tensioning wheel, 148-tensioning wheel pin, 15-power component, 151-motor base fixing plate, 152-closed loop motor, 16-needle rod presser foot component, 161-presser foot fixing shaft, 162-presser foot positioning block, 1621-sliding sleeve, 1622-clamping block, clamping block, 163-presser foot body, 2-needle bar frame, 21-frame body, 211-shaft hole, 22-embroidery needle assembly and 221-needle bar.

[ detailed description ] embodiments

Referring to fig. 1 to 8 (the driven transmission belt 143 and the driving transmission belt 146 omit teeth in the figures), the double-belt liftable presser foot mechanism of the present invention comprises a presser foot driving assembly 13, a belt transmission assembly 14, a power assembly 15 and a needle rod presser foot assembly 16, wherein the presser foot driving assembly 13 comprises a presser foot driving shaft 131 and a presser foot driver 132, the presser foot driving shaft 131 is vertically fixed in the housing 11 of the machine head 1 and is parallel to the driving shaft 12, the presser foot driver 132 is slidably fixed on the presser foot driving shaft 131 and the driving shaft 12, the belt transmission assembly 14 comprises a driving transmission mechanism and a driven transmission mechanism, the power assembly 15 is fixed in the housing 11 and drives the driving transmission belt 146 in the driving transmission mechanism to rotate, the driving transmission belt 146 drives the driven transmission belt 143 in the driven transmission mechanism to rotate, the presser foot driver 132 is connected with the driven transmission belt 143 and is driven by the driven transmission belt 143 along the presser foot driving mechanism The shaft 131 and the main shaft 12 move up and down, and the needle bar presser foot assembly 16 is detachably fixed to the presser foot driver 132.

The presser foot drive assembly 13 further comprises a pressing plate 133, wherein the pressing plate 133 is detachably fixed on one side of the presser foot driver 132 and presses and fixes the driven transmission belt 143 on the outer wall of the presser foot driver 132.

The presser foot driver 132 is provided with rib parts 1322 in parallel at the side edges close to the driven transmission belt 143, a belt clamping groove is formed between the rib parts 1322, and the driven transmission belt 143 is positioned in the belt clamping groove.

The upper end and the lower end of the convex edge part 1322 are respectively provided with an end lug 1323, a pressure plate clamping groove is formed between the end lugs 1323 of the same convex edge part 1322, and the pressure plate 133 is positioned in the pressure plate clamping groove.

The driven transmission mechanism comprises driven pulley fixing pins 141, a transmission mechanism support 142, a driven transmission belt 143 and a presser foot driven pulley 145, the transmission mechanism support 142 is fixed in the machine shell 11, a plurality of driven pulley fixing pins 141 are respectively fixed on the same side of the transmission mechanism support 142, a plurality of presser foot driven pulleys 145 are respectively fixed on the driven pulley fixing pins 141 through bearings in a rotatable manner, at least two presser foot driven pulleys 145 are positioned on the same vertical line parallel to the presser foot driving shaft 131, the driven transmission belt 143 is sleeved outside the presser foot driven pulley 145, the driving transmission mechanism comprises a presser foot transmission pulley 144 and a driving transmission belt 146, the power assembly 15 comprises a motor base fixing plate 151 and a closed-loop motor 152, the motor base fixing plate 151 is positioned at the rear side of the transmission mechanism support 142, and the closed-loop motor 152 is fixed at the rear side of the motor base fixing plate 151, the presser foot driving pulley 144 is located in the opening 1421 of the driving mechanism support 142 and connected to the output shaft of the closed-loop motor 152, and the driving belt 146 is sleeved outside the presser foot driving pulley 144 and one of the presser foot driven pulleys 145.

The driving transmission mechanism further comprises a tension wheel 147 and a tension wheel pin 148, the tension wheel pin 148 is fixed on the transmission mechanism support 142 and is positioned on the same side with the driven pulley fixing pin 141, and the tension wheel 147 is rotatably fixed on the tension wheel pin 148 through a bearing.

The needle bar presser foot assembly 16 includes a presser foot fixing shaft 161, a presser foot positioning block 162 and a presser foot body 163, the presser foot fixing shaft 161 is vertically slidably disposed in the shaft hole 211 of the frame body 21 of the needle bar frame 2 and is parallel to the presser foot driving shaft 131, the presser foot positioning block 162 is fixed to the upper end of the presser foot fixing shaft 161, the presser foot positioning block 162 is engaged with the presser foot driver 132, and the presser foot body 163 is fixed to the bottom end of the presser foot fixing shaft 161.

The side of the presser foot positioning block 162 is provided with a sliding sleeve 1621, the needle bar frame 2 is vertically provided with an embroidery needle assembly 22, the needle bar 221 of the embroidery needle assembly 22 is parallel to the presser foot fixing shaft 161, and the sliding sleeve 1621 is fixed on the needle bar 221 in a sliding manner.

A clamping plate 1321 is arranged on the outer wall of the presser foot driver 132, a clamping block 1622 is arranged on the outer wall of the presser foot positioning block 162, and the clamping block 1622 is clamped and fixed with the clamping plate 1321.

The working process of the invention is as follows:

in operation, the closed-loop motor 152 drives the presser foot drive pulleys 144 to rotate via the output shaft, thereby driving one of the presser foot driven pulleys 145 to rotate via the driving drive belt 146, and then driving the driven drive belt 143 and the remaining presser foot driven pulleys 145 to rotate. A vertically arranged length of the driven transmission belt 143 between the two presser foot driven pulleys 145 drives the presser foot driver 132 fixed thereon to move up and down along the driving shaft 12 and the presser foot driving shaft 131, so that the presser foot positioning block 162 drives the presser foot body 163 located at the bottom end of the presser foot fixing shaft 161 to move up and down to a desired position, thereby realizing rapid adjustment of the height of the presser foot body 163.

According to the invention, the closed-loop motor drives the driving transmission belt in the driving transmission mechanism to rotate, and then the driving transmission belt drives the driven transmission belt to rotate, so that the presser foot driver fixed on the vertical belt section of the driven transmission belt moves up and down along the driving shaft and the presser foot driving shaft, and thus the needle rod presser foot component can be quickly adjusted to move up and down to any suitable position according to the requirements of different embroidery products, the whole transmission efficiency is high, the adjustment precision is high, the whole stress can be more uniform through the double belt structures, and the replacement in subsequent maintenance is more convenient; the convex edge part is arranged on the presser foot driver and the belt clamp groove is formed, so that the driven transmission belt is convenient to mount and position; the end lug is arranged on the convex edge part to form the pressing plate clamping groove, so that the connection stability between the pressing foot driver and the pressing plate is effectively enhanced; the height of the presser foot body is effectively positioned by arranging the presser foot positioning block; through set up the sliding sleeve on the presser foot locating piece, make its in-process of up-and-down motion, can slide from top to bottom along the needle bar, improve the stability of motion.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.