CN217973554U - Griffe device of jacquard - Google Patents

Abstract

The utility model discloses a jacquard griffe device relates to jacquard machine accessory technical field, including being platelike griffe body, the head of griffe body is equipped with stereoplasm oxidation zone, and stereoplasm oxidation zone top sets up and has the inclined plane edge of a knife, compares with prior art, the utility model discloses adopt sulfuric acid process stereoplasm anodic oxidation surface treatment technique at griffe body head, the surface forms stereoplasm oxidation zone after hardening treatment, has solved the indentation that above-mentioned prior art produced, sunken, defects such as surface damage, has improved griffe edge of a knife inclined plane and has resisted subassembly hook impact ability, and griffe body adopts cross-section fretwork broaching technique to form trapezoidal hole and circular port, improves griffe self rigidity to reduce the problem that the griffe bears the back bending deformation in service, griffe connecting piece utilizes glass fiber reinforcement nylon material's high strength, high impact resistance, corrosion resistance, wearability, and has self-lubricating property, has solved the shortcoming that the lifting force loading end was squashed sunken on the griffe in the prior steel goods technique.

Description

Jacquard griffe device of jacquard

Technical Field

The utility model relates to the technical field of jacquard accessories, in particular to a griffe device of a jacquard.

Background

In the jacquard machine, the component 1 'is assembled and fixed on other parts of the jacquard machine, as shown in fig. 1, N component hooks with the same number are respectively installed on two sides in each component 1', one component hook I2 'and one component hook II 21' on the two sides are respectively connected with two ends of an upper pulley rope 4 'of a pulley block 3' in the component 1', one end of a lower pulley rope 5' of the pulley block 3 'is fixed in the component 1', the other end of the lower pulley rope 5 'is connected with a harness cord 6' for pulling warp yarns in weaving, the other end of the harness cord 6 'is connected with a harness cord spring 7', and the other end of the harness cord spring 7 'is fixed on a harness cord eye plate 10' of the jacquard machine.

The griffe is made of aluminium section broaching because the cross section shape is more complex. Two sides of the component 1' are respectively and movably provided with a first griffe 8' and a second griffe 9', the first griffe 8' and the second griffe 9' both reciprocate up and down under the pulling and lifting of other mechanisms, and the movement displacement of the first griffe 8' and the second griffe 9' is synchronous and heterodromous.

The synchronous and opposite up-and-down reciprocating motion of the first griffe 8 'and the second griffe 9' is always carried out along with the operation of the jacquard, and the up-and-down motion of the first griffe and the second griffe is staggered twice when the jacquard rotates for one circle.

The action of the first component hook 2 'and the second component hook 21' depends on the weaving process requirement, when the first component hook 2 'and the second component hook 21' are not required to pull up warp yarns according to the connected harness cord 6', the first component hook 2' and the second component hook 21 'on the same group are both on the fixed position line A, when the harness cord 6' is required to pull up warp yarns according to the weaving process requirement, the first component hook 2 'and the second component hook 21' respectively reciprocate up and down along with the first lifting knife 8 'and the second lifting knife 9', as exemplified in fig. 1, the second component hook 21 'is separated from the fixed position line A after obtaining a signal of a control system, the second component hook 21' is always hung on the inner inclined plane of the second lifting knife 9 'under the spring force of the harness cord spring 7', and reciprocates up and down along with the second lifting knife 9', as shown in fig. 1, after the second lifting knife 9' moves and displaces L, the second component hook 21 'reaches the position C of the lifting knife 9'.

As shown in fig. 1, the highest position line B of the movement of the knife is higher than the assembly hook fixing position line a because the assembly hook can be separated from the fixing position line a after receiving the control signal only when the knife pushes the assembly hook to the position line B, thereby following the knife into the up-and-down movement.

In conclusion, during the up-and-down reciprocating motion of the griffe, the knife edge inclined plane of the griffe is always subjected to two acting forces from the assembly hook:

1. when the lifting knife pushes the assembly hook from the fixed position line A to the highest position line B, the inclined plane of the knife edge of the lifting knife is subjected to repeated impact force.

2. When the lifting knife drives the component hook to move up and down, the lifting knife is always under the spring acting force of the spring harness cord acting on the component hook.

During the weaving process of the jacquard, the knife can be damaged as follows due to the long-term action of the two forces:

1. because the surface hardness of the aluminum profile used for manufacturing the lifting knife is insufficient, indentations and depressions with different degrees are generated on the inclined plane of the knife edge of the lifting knife due to the impact with the component hook, and even surface damage is generated, so that the movement precision and the service life of the component hook are influenced.

2. Because the lifting knife has certain length, under the spring force effect that a plurality of subassembly hooks have, the lifting knife can be because self rigidity is not enough, wholly can produce length direction's crookedness, amount of deflection f promptly, and long-term use can make the lifting knife produce bending deformation to influence the motion precision of subassembly hook and the life of lifting knife.

Meanwhile, in order to drive the griffe, griffe connectors 11 'are fixedly assembled at two ends of the griffe in the jacquard machine in the prior art, as shown in fig. 2, the griffe connectors 11' are respectively hinged with one end of a griffe connecting rod 12', the other end of the griffe connecting rod 12' is hinged with other moving components on the jacquard machine, and the griffe connecting rod 12 'is driven by the other moving components to do connecting rod swinging and lifting motion, so that the griffe connectors 11' and the griffe are driven to do up-and-down reciprocating motion. When the lifting knife connecting piece 11' drives the lifting knife to move up and down, the acting force between the lifting knife connecting piece and the lifting knife is mainly realized by transmitting the pulling force through a pulling force bearing surface on the lifting knife.

In the prior art, in order to ensure the tensile strength of the griffe attachment 11', the griffe attachment is usually machined by a machine tool using a steel profile or a casting. Because the hardness of steel is far greater than the surface hardness of the aluminium profile of the lifting knife, in the long-term use process, due to the repeated impact action of the pulling force, the pulling force bearing surface on the lifting knife can cause crushing depression, the value of the depression K can be enlarged along with the increase of the use time, so that the gap between the lifting knife connecting piece and the lifting knife in the up-and-down displacement direction is larger and larger, the accuracy of the movement displacement of the lifting knife is influenced, and the service life of the lifting knife and other parts is easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a jacquard griffe device for improving the griffe knife edge inclined plane to resist the impact capacity of a component hook.

In order to achieve the purpose, the utility model provides a jacquard machine griffe device, including being platelike griffe body, the head of griffe body is equipped with stereoplasm oxidation zone, the top in stereoplasm oxidation zone is provided with the edge of a knife that has the inclined plane, be equipped with the trapezoidal hole that transversely runs through on the stereoplasm oxidation zone, be equipped with the circular port that transversely runs through on the griffe body, the circular port is located the below in stereoplasm oxidation zone.

Preferably, the number of the circular holes is three, and the circular holes are distributed at intervals in the vertical direction.

Preferably, the two ends of the griffe body are fixedly provided with griffe connecting pieces, the griffe connecting pieces are provided with concave cavities with the same cross sections as the middle head of the griffe body, and the griffe connecting pieces are enveloped outside the hard oxidation area through the concave cavities and are in threaded connection with the griffe body.

Preferably, the griffe connector is made of glass fiber reinforced nylon.

The utility model has the advantages that:

1) The head of the griffe body adopts a sulfuric acid method hard anodic oxidation surface treatment technology, and a hard oxidation area is formed after the surface is hardened, so that the defects of indentation, depression, surface damage and the like generated in the prior art are completely overcome, and the capability of resisting component hook impact of the griffe edge inclined plane is improved;

2) The cross-section hollowed broaching technology is adopted in the griffe body to form the trapezoidal hole and the circular hole, so that the rigidity of the griffe is improved, the problem of bending deformation after the griffe is loaded in the operation process is reduced, the service life of the griffe is prolonged, and the matching precision of the griffe and the assembly hook is improved;

3) The griffe connector utilizes the high strength, high impact resistance, corrosion resistance and wear resistance of the glass fiber reinforced nylon material, and has self-lubricating property, thereby solving the defect that the pulling lift force bearing surface on the griffe is crushed and sunken in the prior steel product technology, and simultaneously the technology has the advantage of greatly reducing the cost.

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

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

FIG. 2 is a schematic view of a prior art connection of a griffe;

FIG. 3 is an enlarged view at M of FIG. 1;

FIG. 4 is a schematic structural view of the present invention;

fig. 5 is a perspective view of the present invention;

fig. 6 is a front view of the present invention;

FIG. 7 is a schematic view of the connection between the middle lifting knife and the lifting knife connecting member of the present invention;

FIG. 8 is a schematic view of the amount of recess of the load-supporting surface when the lifting tool of the present invention is pulled;

in the figure: 1', assembly; 2', a component hook I; 21', a second component hook; 3', a pulley block; 4', an upper pulley rope; 5', a lower pulley rope; 6', harness cords; 7', a harness cord spring; 8', lifting a knife I; 9', a second lifting knife; 10', harness board; 11', a griffe attachment; 12', a knife lifting connecting rod;

1. a griffe body; 2. a hard oxidation zone; 3. a knife edge; 31. a bevel; 4. a trapezoidal hole; 5. a circular hole; 6. a knife-lifting connecting piece;

Detailed Description

Referring to fig. 1 to 8, the utility model comprises a plate-shaped griffe body 1, wherein a knife edge 3 with an inclined plane 31 is arranged at the head of the griffe body 1.

In order to improve the impact resistance of the inclined surface 31 of the knife edge 3 of the lifting knife, the head of the lifting knife body 1 is provided with the hard oxidation region 2, namely the side surface of the knife edge 3 and the inclined surface 31 for the component hook are subjected to hard anodic oxidation surface treatment by a sulfuric acid method, the hard oxidation region 2 is formed after the surface is subjected to hardening treatment, the Richter hardness is not less than HL 420-460, and the defects of indentation, depression, surface damage and the like are avoided.

In order to improve the rigidity of the lifting knife and reduce the bending deformation problem after the lifting knife bears in the operation process, the lifting knife body 1 is made of an aluminum profile material with high tensile strength, a trapezoidal hole 4 which transversely penetrates through is formed in the hard oxidation area 2 by adopting an aluminum profile section hollow broaching technology, and a circular hole 5 which transversely penetrates through is formed in a web plate of the lifting knife body 1, and the circular hole 5 is located below the hard oxidation area 2. Wherein the number of the circular holes 5 is three, and the circular holes are distributed at intervals in the vertical direction. The integral rigidity of the lifting knife is effectively improved, and under the condition of the same load, the bending deflection f value generated by the lifting knife is only 20-30% of that of the prior art through theoretical calculation and application detection, so that the service life of the lifting knife is prolonged, and the matching precision of the lifting knife and a component hook is improved.

In order to reduce the crushing and sinking phenomena of the steel griffe knife connecting piece to the griffe knife at the connecting part of the griffe knife connecting piece and the griffe knife, griffe knife connecting pieces 6 are fixedly assembled at two ends of the griffe knife body 1, a concave cavity with the same cross section as the head part of the griffe knife body 1 is arranged on each griffe knife connecting piece 6, and each griffe knife connecting piece 6 is enveloped outside the hard oxidation area 2 through the concave cavity and is fastened on the griffe knife body 1 through a screw and a nut. The lifting knife connecting piece 6 is made of glass fiber reinforced nylon, 30% of glass fiber is mixed in PA66 nylon, the mixed material is melted, die-cast, shaped and the like, the manufacturing of parts of the lifting knife connecting piece is completed at one time, and products made of the technical material have high strength, high impact resistance, corrosion resistance, wear resistance and self-lubricating performance. The utility model discloses solved completely among the current steel product technology draw lift force loading end by the sunken shortcoming of conquassation on the broach, this technique has the advantage of reducing cost by a wide margin simultaneously.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any is right the utility model discloses scheme after simply changing all belongs to the protection scope of the utility model.

Claims (4)

1. The utility model provides a jacquard machine griffe device, is including being platelike griffe body (1), its characterized in that, the head of griffe body (1) is equipped with stereoplasm oxidation district (2), the top setting of stereoplasm oxidation district (2) has edge of a knife (3) on inclined plane (31), be equipped with trapezoidal hole (4) that transversely run through on stereoplasm oxidation district (2), be equipped with transversely through circular port (5) on griffe body (1), circular port (5) are located the below of stereoplasm oxidation district (2).

2. The jacquard machine griffe apparatus of claim 1, wherein: the number of the circular holes (5) is three, and the circular holes are distributed at intervals in the vertical direction.

3. A jacquard machine griffe apparatus according to claim 1 or 2, characterized in that: both ends of the griffe body (1) are fixedly provided with griffe connecting pieces (6), concave cavities which are the same as the cross sections of the head parts in the griffe body (1) are arranged on the griffe connecting pieces (6), and the griffe connecting pieces (6) are enveloped outside the hard oxidation area (2) through the concave cavities and are in threaded connection with the griffe body (1).

4. The jacquard knife device according to claim 3, characterized in that: the griffe connector (6) is made of glass fiber reinforced nylon.

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