Graphite packing weaving device

Abstract

The utility model provides a graphite packing weaving device, which comprises a support, a weaving component and a coil outlet component, the weaving component comprises a weaving head, a through hole is arranged in the middle of the weaving head, the weaving head is also provided with a plurality of weaving needles arranged around the through hole, and the outer side of the weaving head is also provided with a plurality of magnetic attraction components corresponding to the weaving needles; the coil outlet assembly is arranged on the side face of the weaving head, and the metal wire reel is vertically installed on the coil outlet assembly and provides metal wire raw materials for the weaving head. According to the utility model, the magnetic attraction assembly is arranged corresponding to the knitting needle, and the magnetic attraction assembly is close to the knitting needle and extends upwards to the position with the maximum height, so that the knitting needle cannot incline towards the inner side under the attraction force of the magnetic attraction assembly towards the outer side after being lifted every time, and the knitting needle cannot touch a knitted metal net in the downward contraction process; and normal knitting work is not hindered. Therefore, frequent equipment maintenance is avoided, and the production efficiency is correspondingly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite braided wire technical field especially relates to a graphite packing braiding device. BACKGROUND

[0002] The graphite braided rope is also called flexible graphite packing, which is made of flexible graphite wire by crossing braiding. At present, the existing sealing packing in the domestic market which takes graphite as the main raw material is mostly made of pure expanded graphite wire by using cotton yarn, glass fiber, copper wire, stainless steel wire and other materials as internal reinforcing fibers, and has high loss on ignition. In high temperature environment, its volume stability is poor, which leads to poor sealing performance, and it is not suitable for sealing devices with high sealing requirements. In order to improve the sealing performance of the sealing packing, low loss on ignition graphite packing appears in the market, which is made of flexible graphite as raw material, imported high-quality high-modulus carbon fiber as reinforcing material, and pressure-sensitive adhesive, twisted into wire by composite process, and made into packing by crossing braiding process. That is, the graphite braided wire takes flexible graphite wire as the basic material, and uses high-speed metal wire braiding equipment to uniformly wrap a layer of metal wire mesh on the outer surface of the graphite wire. For example, the uniform texture of the nickel wire outer crochet needle braided mesh is smaller than that of the traditional outer braided metal wire mesh, and has extremely high tensile strength, so it is widely used in graphite braided wire processing.

[0003] At present, most of the braiding equipment adopts outer hook type braiding needle, which drives the braiding needle to move up and down reciprocatingly by the internal structure to hook the metal wire into a metal wire mesh structure. However, this traditional braiding device still has some problems. Because the metal wire is different from the material such as silk thread, it has high self structural strength. After a long time of work, the braiding needle is easily deformed inwardly by the pulling of the metal wire, which makes it difficult to accurately hook the metal wire and affects the normal braiding work. The maintenance of this kind of small braiding equipment is more complex and time-consuming, so it will affect the production efficiency. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a graphite packing braiding device, which solves the problem of inclination of the braiding needle after a long time of use in the prior art, affects the normal work and reduces the production efficiency.

[0005] According to the embodiment of the utility model, a graphite packing braiding device is used for braiding metal wire outside graphite wire to form a metal wire mesh, which comprises a support, a braiding assembly arranged on the support and a winding assembly arranged on one side of the braiding assembly. The braiding assembly comprises a braiding head, the braiding head is provided with a through hole for the graphite wire to pass through, the braiding head is provided with a plurality of braiding needles arranged around the through hole, the braiding needles are vertically arranged and move up and down intermittently, so that the metal wire is braided into a metal wire mesh around the graphite wire.

[0006] The weaving head outer side is further provided with a plurality of magnetic attraction assemblies, which are arranged one by one along the radial direction of the knitting needle, and the magnetic attraction assemblies are close to the outer side of the knitting needle and extend upward to the maximum height position, thereby attracting the knitting needle in this state to the outside;

[0007] The wire winding assembly is arranged on the side of the weaving head, and the wire reel is vertically installed on the wire winding assembly to provide the wire raw material for the weaving head.

[0008] Further, the magnetic attraction assembly comprises a support rod and an electromagnet, the bottom of the support rod is fixed on the support, and the top supports the electromagnet on the outer side close to the highest position of the knitting needle.

[0009] Further, the switch assembly controls the opening of the electromagnet in each magnetic attraction assembly, so that when the knitting needle rises to the highest position, the corresponding electromagnet is just opened.

[0010] Further, the switch of the electromagnet is a touch contact switch, and the contact switches of all the electromagnets are located on the same horizontal plane, the switch assembly comprises a motor, a connecting rod and a pressing piece, the output shaft of the motor is connected with the connecting head perpendicularly, the pressing piece is installed on the other end of the connecting rod, and the pressing piece is parallel to the horizontal plane of the contact switch, when the pressing piece rotates to the position of the contact switch, the pressing piece presses the contact switch to close it.

[0011] Further, the pressing piece is in the shape of an arc-shaped sheet, the top of the pressing piece is provided with a protruding part, and the two ends of the protruding part are provided with inclined sections, thereby being connected with the surface of the pressing piece gently.

[0012] Further, the support comprises a first support plate and a second support plate arranged vertically, a support column is arranged on the outer edge between the first support plate and the second support plate, the weaving assembly and the wire winding assembly are arranged on the surface of the first support plate, and the switch assembly is arranged on the second support plate.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] In the present application, the magnetic attraction assembly is arranged corresponding to the knitting needle, and the magnetic attraction assembly extends upward to the position of the maximum height of the knitting needle, so that the knitting needle is attracted by the magnetic attraction assembly to the outside after being raised each time, and the knitting needle will not be inclined to the inside, so that the finished metal mesh will not be touched during the downward shrinking process, and the normal weaving work will not be affected. In this way, frequent equipment maintenance is avoided, and the production efficiency is improved accordingly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure of the embodiment of the present application is shown in the schematic diagram.

[0016] Figure 2 It is the enlarged schematic view of the weaving assembly and the magnetic assembly in the embodiment of the utility model.

[0017] Figure 3 It is the specific structure view of the extrusion piece in the embodiment of the utility model.

[0018] In the above-mentioned drawing: 1, support; 2, weaving head; 3, unwinding roller; 4, magnetic assembly; 5, contact switch; 6, take-up drum; 7, motor; 8, connecting rod; 9, extrusion piece; 11, first support plate; 12, second support plate; 13, support column; 21, weaving needle; 41, support rod; 42, electromagnet; 91, protruding part. DETAILED DESCRIPTION

[0019] The technical scheme in the utility model is further explained below in combination with the drawings and embodiments.

[0020] As Figure 1 shown, the utility model embodiment proposes a graphite packing weaving device, it is for the metal wire weaving at the graphite wire outside to form metal wire net, including support 1, setting up weaving assembly on support 1 and setting up unwinding assembly on one side of weaving assembly. In the embodiment, support 1 includes first support plate 11, second support plate 12 arranged in upper and lower, the outer edge between first support plate 11 and second support plate 12 is provided with support column 13, and weaving assembly, unwinding assembly are arranged on the surface of first support plate 11. First support plate 11 top is also provided with take-up drum 6, so that the graphite packing of weaving completion is led to the winding equipment.

[0021] As Figure 2 shown, weaving assembly includes weaving head 2, the middle part of weaving head 2 is equipped with the through hole for the graphite wire to pass through, weaving head 2 has a plurality of weaving needles 21 arranged around the through hole, weaving needle 21 is vertically arranged, and intermittently moves up and down, so that the metal wire is woven into the metal wire net around the graphite wire. Unwinding assembly includes unwinding roller 3, and unwinding roller 3 is arranged on the side surface of weaving head 2, and the metal wire roller is vertically installed on the unwinding assembly, to provide the metal wire raw material for weaving head 2. Wherein weaving head 2 and unwinding roller 3 are fixedly installed above first support plate 11.

[0022] The weaving head 2 is also provided with a plurality of magnetic assembly 4, which is arranged corresponding to the weaving needle 21 in the radial direction. The magnetic assembly 4 is arranged close to the outside of the weaving needle 21 which extends upward to the maximum height, so as to attract the weaving needle 21 in this state to the outside. Since the magnetic assembly 4 is arranged close to the weaving needle 21 which extends upward to the maximum height, the magnetic assembly 4 will attract the weaving needle 21 to the outside when the weaving needle 21 is lifted, so that the weaving needle 21 will not tilt to the inside, and thus will not touch the completed metal mesh during the contraction process, and will not hinder the normal weaving work.

[0023] In the embodiment, the magnetic assembly 4 comprises a support rod 41 and an electromagnet 42. The bottom of the support rod 41 is fixed to the support 1, and the top of the support rod 41 supports the electromagnet 42 close to the outside of the weaving needle 21 which extends upward to the maximum height. Further, a switch assembly is arranged to control the opening of the electromagnet 42 in each magnetic assembly 4, so that when the weaving needle 21 is lifted to the maximum height, the corresponding electromagnet 42 is opened. In this way, the electromagnet 42 is only opened to provide an attractive force when the corresponding weaving needle 21 is lifted to the maximum height, and is closed in other cases, so as to avoid the adjacent magnetic assembly 4 from attracting other weaving needles 21 and metal wires, and to reduce the possibility of failure.

[0024] In a further embodiment, the switch of the electromagnet 42 is a touch contact switch 5, and the contact switches 5 of all the electromagnets 42 are arranged on the same horizontal plane. In the embodiment, the magnetic assembly 4 is installed on the first support plate 11, and the contact switch 5 of the electromagnet 42 extends through the first support plate 11 to the bottom of the first support plate 11, so as to be arranged on the bottom surface of the first support plate 11. When the contact switch 5 is pushed upward, the circuit is closed, and the electromagnet 42 is started. When the contact switch 5 is not subjected to external force, the circuit is automatically disconnected under the action of gravity.

[0025] Specifically, the switch assembly comprises a motor 7, a connecting rod 8 and a pressing piece 9. The output shaft of the motor 7 is connected to the connecting head perpendicularly. The pressing piece 9 is installed on the other end of the connecting rod 8, and the pressing piece 9 is parallel to the horizontal plane on which the contact switch 5 is arranged. When the pressing piece 9 rotates to the position of the contact switch 5, the pressing piece 9 presses the contact switch 5 to close it. As a preferred embodiment, the motor 7 is installed vertically on the second support plate 12, and the output shaft of the motor 7 is coaxial with the weaving head 2. The connecting rod 8 is arranged horizontally on the top end of the output shaft of the motor 7, and corresponds to the position of the contact switch 5, so that the pressing piece 9 rotates along the connecting rod 8 to pass through the contact switch 5 in sequence. The rotation speed of the motor 7 is set to be synchronized with the working order of the weaving needle 21, so that when the weaving needle 21 is lifted, the pressing piece 9 moves to the position of the contact switch 5 corresponding to the electromagnet 42, and the electromagnet 42 is started to provide an attractive force.

[0026] As Figure 3As shown, as preferred, the extrusion piece 9 is in an arc-shaped sheet structure, a protruding part 91 is arranged on the top of the extrusion piece 9, and both ends of the protruding part 91 are provided with inclined sections, thereby being gently connected with the surface of the extrusion piece 9. Through the structure, the extrusion piece 9 can be more stably contacted with the contact switch 5, and push and extrude the contact switch 5 to move upward to close the circuit, thereby avoiding the damage of the contact switch 5 caused by the impact of the horizontal rotation of the extrusion piece 9.

[0027] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A graphite packing braiding device for braiding metal wires outside graphite threads to form a metal wire mesh, characterized in that: The device comprises a support, a braiding assembly arranged on the support, and a winding assembly arranged on one side of the braiding assembly, the braiding assembly comprises a braiding head, a through hole is arranged in the middle of the braiding head for the graphite wire to pass through, a plurality of braiding needles are arranged around the through hole in the braiding head, the braiding needles are vertically arranged and move up and down intermittently, so that the metal wire is braided into a wire mesh around the graphite wire; A plurality of magnetic attraction assemblies are arranged outside the braiding head, the magnetic attraction assemblies are arranged one by one in the radial direction corresponding to the braiding needles, the magnetic attraction assemblies are arranged outside the position of the braiding needles that extend to the maximum height upwards, so as to attract the braiding needles in this state to the outside; The winding assembly is arranged on the side of the braiding head, and a metal wire reel is vertically installed on the winding assembly to provide the braiding head with metal wire raw materials.

2. A graphite packing braiding apparatus as claimed in claim 1, wherein: The magnetic attraction assembly comprises a support rod and an electromagnet, the bottom of the support rod is fixed on the support, and the top supports the electromagnet outside the highest position of the braiding needle.

3. A graphite packing braiding apparatus as claimed in claim 2, wherein: It also comprises a switch assembly that controls the opening of the electromagnet in each magnetic attraction assembly, so that when the braiding needle rises to the highest position, the corresponding electromagnet is just opened.

4. A graphite packing braiding apparatus as claimed in claim 3, wherein: The switch of the electromagnet is a touch contact switch, and the contact switches of all electromagnets are located on the same horizontal plane, the switch assembly comprises a motor, a connecting rod, and a pressing piece, the output shaft of the motor is connected with the connecting head vertically, the pressing piece is installed on the other end of the connecting rod, and the pressing piece is parallel to the horizontal plane where the contact switch is located, when the pressing piece rotates to the position of the contact switch, the contact switch is pressed to be closed.

5. A graphite packing braiding device as claimed in claim 4, wherein: The pressing piece is in the shape of an arc, a convex part is arranged on the top of the pressing piece, and inclined sections are arranged at both ends of the convex part, so as to be connected with the surface of the pressing piece gently.

6. A graphite packing braiding apparatus as claimed in claim 3, wherein: The support comprises a first support plate and a second support plate arranged vertically, a support column is arranged on the outer edge between the first support plate and the second support plate, the braiding assembly and the winding assembly are arranged on the surface of the first support plate, and the switch assembly is arranged on the second support plate.

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