CN216040033U - Improved generation plays heald case - Google Patents

Abstract

The utility model relates to an improved drafting box, wherein an input gear set and a double-rod common-weft cam set are arranged in a box body, the input gear set transmits input power to the double-rod common-weft cam set, the double-rod common-weft cam set comprises an output rod, and the output rod comprises a rack base, a T-shaped connecting piece and a plurality of L-shaped connecting pieces, the middle parts of the T-shaped connecting piece and the L-shaped connecting pieces are rotatably connected to the rack base, the first end point of the T-shaped connecting piece is rotatably connected with the output rod, the second end point of the T-shaped connecting piece is rotatably connected with a heald frame connecting rod, the third end point of the T-shaped connecting piece is rotatably connected with a transmission rod, the first end point of the L-shaped connecting piece is connected with a heald frame connecting rod, the second end point of the L-shaped connecting piece is rotatably connected with the transmission rod, and the T-shaped connecting piece and the L-shaped connecting piece are arranged along the axial direction of the transmission rod; the advantages are that: through setting up T type connecting piece and L type connecting piece for the power of the output lever of two pole altogether latitude cam group can directly be exported to the heald frame, has saved middle conversion process, has improved the transmission efficiency of power.

Description

Improved generation plays heald case

Technical Field

The utility model relates to the technical field of textile machinery, in particular to an improved heald lifting box.

Background

The heald lifting box is mainly used for driving the heald frames to move up and down, and as shown in fig. 1, the heald lifting box is a schematic structural diagram of a heald lifting box previously applied by the applicant.

But the harness box has the following defects: when the double-rod common-weft cam group is used for power output, the translation motion of the output rod needs to be converted into the rotation of the rotating shaft, so that the output of the driving force is not direct enough.

Based on this, the present disclosure is thus directed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved heald lifting box, which enables the force on an output shaft to be transmitted more directly by improving the connection structure between the output shaft and a heald frame.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides an improved generation drafting box, includes the box, is equipped with input gear train and two poles in the box and shares latitude cam group, and input gear train gives the power transmission of input and shares latitude cam group for two poles, and two poles share latitude cam group and include the output pole, including frame base, T type connecting piece and a plurality of L type connecting piece, the middle part of T type connecting piece and L type connecting piece is rotated and is connected on the frame base, the first extreme point and the output pole of T type connecting piece rotate to be connected, rotates on the second extreme point and is connected with the heald frame connecting rod, rotates on the third extreme point and is connected with the transfer line, be connected with the heald frame connecting rod on the first extreme point of L type connecting piece, the second extreme point rotates with the transfer line to be connected, T type connecting piece and L type connecting piece arrange along the axial of transfer line.

Furthermore, the input gear set comprises an input shaft and a transmission shaft which are rotationally connected with the box body, one end of the input shaft is used for being connected with external power equipment, a first bevel gear is fixed at the other end of the input shaft, and the transmission shaft is provided with a plurality of input gears with different diameters and a second bevel gear meshed with the first bevel gear; the double-rod common-weft cam group comprises a common-weft rod which is rotationally connected with the box body, and an output gear meshed with one input gear is fixed on the common-weft rod.

Furthermore, the double-rod common-weft cam group comprises two groups of cam transmission assemblies and common-weft rods in rotary connection with the box body, the common-weft rods are driven by the input gear group, and the cam transmission assemblies comprise connecting rods, a first common-weft cam and a second common-weft cam which are fixed on the common-weft rods, and a first swinging block and a second swinging block which are in rotary connection with the box body;

the swing block I and the swing block II are arranged oppositely, two ends of the connecting rod are respectively connected to the swing block I and the swing block II in a rotating mode, a transmission block I matched with the co-weft cam I is arranged on one side of the swing block I, a transmission block II matched with the co-weft cam II is arranged on one side of the swing block II, and the output rod is connected to the swing block I in a rotating mode.

The utility model has the advantages that: through setting up T type connecting piece and L type connecting piece for the power of the output lever of two pole altogether latitude cam group can directly be exported to the heald frame, has saved middle conversion process, has improved the transmission efficiency of power.

Drawings

Fig. 1 is a schematic structural diagram of a harness box in the background art;

FIG. 2 is a schematic three-dimensional structure of a harness box in the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic top view of the housing portion of FIG. 2;

FIG. 5 is a schematic three-dimensional configuration of the coving cam set of FIG. 2;

FIG. 6 is a schematic configuration diagram of a connecting rod in the embodiment;

description of the reference symbols

The device comprises an input shaft 1, a transmission shaft 2, a first bevel gear 3, a second bevel gear 4, an input gear 5, a common weft rod 6, an output gear 7, a connecting rod 8, a connecting block 81, a screw 82, a first common weft cam 9, a second common weft cam 10, a first swing block 11, a second swing block 12, a first transmission block 13, a second transmission block 14, an output rod 15, a roller 16, a heald frame connecting rod 17, a transmission rod 18, a long hole 19, a T-shaped connecting piece 20, an L-shaped connecting piece 21 and a heald frame 22.

Detailed Description

The present invention will be described in further detail with reference to examples.

The embodiment provides an improved drafting box, as shown in fig. 2 to 5, which comprises a box body, a frame base, a T-shaped connecting piece 20 and a plurality of L-shaped connecting pieces 21, wherein an input gear set and a double-rod co-weft cam set are arranged in the box body. The input gear set comprises an input shaft 1 and a transmission shaft 2 which are rotationally connected with the box body, one end of the input shaft 1 is used for being connected with external power equipment, a bevel gear I3 is fixed at the other end of the input shaft, and a plurality of input gears 5 with different diameters and a bevel gear II 4 meshed with the bevel gear I3 are arranged on the transmission shaft 2; the double-rod co-weft cam group comprises a co-weft rod 6 which is rotationally connected with the box body, and an output gear 7 which is meshed with one input gear 5 is fixed on the co-weft rod 6. By changing different output gears 7 to be meshed with different input gears 5, the double-rod common weft cam group can obtain different power inputs, so that the up-and-down movement frequency of the heald frames 22 can be changed. Of course, the device of the embodiment can also achieve the adjustment of the movement frequency of the heald frames 22 by replacing the common weft cams with different shapes.

The double-rod common weft cam group comprises two groups of cam transmission assemblies and a common weft rod 6 which is rotationally connected with the box body, the common weft rod 6 is driven by an input gear group, and each cam transmission assembly comprises a connecting rod 8, a first common weft cam 9 and a second common weft cam 10 which are fixed on the common weft rod 6, and a first swinging block 11 and a second swinging block 12 which are rotationally connected on the box body. The first swing block 11 and the second swing block 12 are arranged oppositely, two ends of the connecting rod 8 are respectively connected to the first swing block 11 and the second swing block 12 in a rotating mode, a first transmission block 13 matched with the first weft cam 9 is arranged on one side of the first swing block 11, a second transmission block 14 matched with the second weft cam 10 is arranged on one side of the second swing block 12, and the output rod 15 is connected to the first swing block 11 in a rotating mode.

In order to increase the smoothness of contact between the common weft cam and the transmission block, the first transmission block 13 and the second transmission block 14 of the embodiment are respectively provided with a mounting groove, a roller 16 is arranged in each mounting groove, the roller 16 on the first transmission block 13 is used for being matched with the first common weft cam 9, and the roller 16 on the second transmission block 14 is used for being matched with the second common weft cam 10.

Because there are two output rods 15, there are two sets of transmission members in this embodiment, each set of transmission members includes 1T-shaped connecting member 20 and a plurality of L-shaped connecting members 21, and each set of transmission members includes two T-shaped connecting members 20 and two L-shaped connecting members 21. The middle parts of the T-shaped connecting piece 20 and the L-shaped connecting piece 21 are rotatably connected to the base of the frame, the T-shaped connecting piece 20 is provided with three end points for connection, wherein the first end point is rotatably connected with the output rod 15, the second end point is rotatably connected with the heald frame connecting rod 17, and the third end point is rotatably connected with the transmission rod 18; the L-shaped connecting piece 21 is provided with two connecting end points, wherein the first end point is rotatably connected with the heald frame connecting rod 17, and the second end point is rotatably connected with the transmission rod 18; the T-shaped link 20 and the L-shaped link 21 are arranged in the axial direction of the transmission rod 18. The T-shaped connecting piece 20 and the L-shaped connecting piece 21 are rotatably connected to the heald frame 22 by the frame connecting rod 17.

In the embodiment, the end of the T-shaped connecting piece 20 connected with the output rod 15 is provided with a long hole 19, the rotating connecting point of the T-shaped connecting piece 20 and the output rod 15 is arranged on the long hole 19, and the swinging amplitude of the T-shaped connecting piece 20 can be changed by adjusting the position of the connecting point on the long hole 19, so that the amplitude of the up-and-down movement of the heald frame 22 can be adjusted.

In order to conveniently adjust the swing amplitude of the first swing block 11 and the second swing block 12, as shown in fig. 6, the connecting rod 8 includes a connecting block 81, two through holes are formed in the connecting block 81, screw rods 82 penetrate through the through holes, nuts are screwed on both sides of the screw rods 82 located in the through holes, one end of one screw rod 82 far away from the connecting block 81 is rotatably connected with the first swing block 11, and one end of the other screw rod 82 far away from the connecting block 81 is rotatably connected with the second swing block 12. The length of the connecting rod 8 is adjusted by screwing the screw rod 82, so that the adjustment of the swing amplitude of the swing block is achieved.

The motion principle of the device of the embodiment is as follows:

external power is transmitted into the power through the input shaft 1, the power is transmitted to the common weft rod 6 after passing through the first bevel gear 3, the second bevel gear 4, the input gear 5 and the output gear 7 in sequence, and the common weft rod 6 drives the first common weft cam 9 and the second common weft cam 10 to move; through the rotation of the first weft sharing cam 9 and the second weft sharing cam 10, the first swing block 11 and the second swing block 12 are driven to swing back and forth under the action of the connecting rod 8, and the first swing block 11 and the second swing block 12 swing back and forth to drive the output rod 15 to move back and forth; the back and forth movement of the output rod 15 drives the T-shaped connecting piece 20 connected with the output rod to rotate back and forth at a certain amplitude around the rotating shaft, the back and forth rotation of the T-shaped connecting piece 20 drives the transmission shaft 2 to move back and forth, so that the L-shaped connecting piece 21 is driven to rotate back and forth around the rotating shaft on the L-shaped connecting piece, the back and forth rotation of the L-shaped connecting piece 21 and the T-shaped connecting piece 20 drives the heald frame 22 to move up and down through the heald frame connecting rod 17.

The above embodiments are only used for explaining the concept of the utility model, and not for limiting the protection of the utility model, and any insubstantial modifications of the utility model using this concept shall fall within the scope of the utility model.

Claims (3)

1. The utility model provides an improved generation drafting box, includes the box, is equipped with input gear set and two poles in the box and shares latitude cam group, and input gear set transmits the power of input for two poles and shares latitude cam group, and two poles share latitude cam group and include output rod, its characterized in that: the automatic heald frame connecting device comprises a frame base, a T-shaped connecting piece and a plurality of L-shaped connecting pieces, wherein the middle parts of the T-shaped connecting piece and the L-shaped connecting pieces are rotatably connected onto the frame base, each T-shaped connecting piece comprises three end points, a first end point is rotatably connected with an output rod, a second end point is rotatably connected with a heald frame connecting rod, a third end point is rotatably connected with a transmission rod, each L-shaped connecting piece comprises two end points, a first end point is rotatably connected with the heald frame connecting rod, a second end point is rotatably connected with the transmission rod, and the T-shaped connecting piece and the L-shaped connecting pieces are arranged along the axial direction of the transmission rod.

2. An improved draw box as claimed in claim 1, wherein: the input gear set comprises an input shaft and a transmission shaft which are rotationally connected with the box body, one end of the input shaft is used for being connected with external power equipment, a first bevel gear is fixed at the other end of the input shaft, and a plurality of input gears with different diameters and a second bevel gear meshed with the first bevel gear are arranged on the transmission shaft; the double-rod common-weft cam group comprises a common-weft rod which is rotationally connected with the box body, and an output gear meshed with one input gear is fixed on the common-weft rod.

3. An improved draw box as claimed in claim 1, wherein: the double-rod common-weft cam group comprises two groups of cam transmission assemblies and a common-weft rod rotationally connected with the box body, the common-weft rod is driven by an input gear group, and each cam transmission assembly comprises a connecting rod, a first common-weft cam and a second common-weft cam which are fixed on the common-weft rod, and a first swinging block and a second swinging block which are rotationally connected to the box body;

the swing block I and the swing block II are arranged oppositely, two ends of the connecting rod are respectively connected to the swing block I and the swing block II in a rotating mode, a transmission block I matched with the co-weft cam I is arranged on one side of the swing block I, a transmission block II matched with the co-weft cam II is arranged on one side of the swing block II, and the output rod is connected to the swing block I in a rotating mode.

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