CN111890208A

CN111890208A - Main shaft device capable of adjusting length of wire bow

Info

Publication number: CN111890208A
Application number: CN202010623923.8A
Authority: CN
Inventors: 杨佳葳; 蒋罗雄; 李红春; 吴�灿; 郝李
Original assignee: Yujing Machine Changsha Co ltd
Current assignee: Yujing Machine Changsha Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-11-06

Abstract

The utility model provides a main shaft device of adjustable bow length, includes the frame, be equipped with two main rolls in the frame, be equipped with two auxiliary rollers between two main rolls, the both ends cover of auxiliary roller is equipped with eccentric mount pad, eccentric mount pad passes through threaded connection spare and installs in the frame, threaded connection spare is a plurality ofly, and is the array distribution around the axis of eccentric mount pad, the auxiliary roller is tangent and centers on mutually with the line of cut through rotatory eccentric mount pad. Compared with the prior art, the eccentric mounting seat and the auxiliary roller are arranged between the two main rollers, and the space between the two main rollers is utilized for reconstruction, so that the reconstruction cost is saved, and the convenience of the main shaft device is kept. The wire bow length obtained by this setup was: the length of the cutting line between two main rollers, or between two sub-rollers, or between one main roller and one sub-roller, which results in a wider range of bow lengths.

Description

Main shaft device capable of adjusting length of wire bow

Technical Field

The invention relates to the technical field of manufacturing of cutting machines, in particular to an auxiliary mechanism capable of adjusting the length of a wire bow.

Background

The basic principle of the multi-wire cutting machine is that the cutting wire repeatedly moves at a high speed, the basic core structure of the multi-wire cutting machine is that two autorotation main rollers drive the cutting wire to move, and the grinding mode is as follows: the workpiece slowly approaches the cutting line, and the cutting line moving at high speed carries cutting particles to grind the workpiece.

The two-roller main shaft of the multi-wire cutting machine in the current market generally adopts a fixed wheelbase, and the wheelbase of the two main rollers determines the maximum cutting size of the machine. When a product with a small size is cut by using a large wheel base, an overlarge wire bow is caused, so that the cutting wire loss is increased, the cutting time is prolonged, the line mark of a cutting surface is deepened, and the product quality is reduced. In order to obtain the best processing quality and maintain stable processing yield, a cutting machine with a size specification corresponding to a spindle distance is generally adopted. To cut multiple sizes of product, a user needs to order multiple models of machines. Resulting in resource waste.

Therefore, there is a need to provide a new auxiliary mechanism for adjusting the length of a wire bow to solve the above-mentioned technical problems.

Disclosure of Invention

The invention aims to solve the technical problem of providing a main shaft device which has a simple structure, can adjust a larger wire bow length range and can adjust the wire bow length by reforming the main shaft device to a small extent.

The invention aims to solve the technical problem of providing a main shaft device capable of adjusting the length of a wire bow, which comprises a rack, wherein two main rollers are arranged on the rack, two auxiliary rollers are arranged between the two main rollers, two ends of each auxiliary roller are sleeved with eccentric mounting seats, the eccentric mounting seats are mounted on the rack through threaded connecting pieces, the threaded connecting pieces are multiple and distributed in an array mode around the axis of each eccentric mounting seat, and the auxiliary rollers are tangent to and surround cutting wires through rotating the eccentric mounting seats.

Preferably, the two sub-rolls are symmetrically arranged along a center line between the two main rolls.

Preferably, the diameter of the eccentric mounting seat is smaller than or equal to the diameter of the main roller.

Preferably, the eccentric mounting seats are divided into two groups, the two groups of eccentric mounting seats are arranged along the length direction of the main shaft, and the number of each group of eccentric mounting seats is even and is more than two.

Preferably, the eccentric mountings in each set are symmetrically arranged along a centre line between the two main rollers.

Preferably, the secondary roller is inserted into the eccentric mounting seat through a bearing sleeve.

Compared with the prior art, the eccentric mounting seat and the auxiliary roller are arranged between the two main rollers, the space between the two main rollers is utilized for reconstruction, the size of the main rollers does not need to be modified, particularly the mounting size of the main rollers is increased, the size of the main shaft device can be prevented from being increased due to the design, and therefore the reconstruction cost is saved and the convenience of the main shaft device is kept. The wire bow length obtained by this setup was: the length of the cutting line between two main rollers, or between two sub-rollers, or between one main roller and one sub-roller, which results in a wider range of bow lengths. By installing more eccentric mounting seats between the two main rollers, the length of the wire bow can be smaller, and the length range of the wire bow is further expanded.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the secondary roller of the present invention in a tangential condition with respect to the cutting line;

FIG. 3 is a schematic view showing a state in which a sub-roller of the present invention is surrounded with a cutting line;

FIG. 4 is a schematic view of a plurality of eccentric mounts of the present invention;

fig. 5 is a schematic view of the structure of the sub-roll of the present invention.

In the figure:

1. the roller comprises a rack, 2 main rollers, 3 auxiliary rollers, 4 eccentric mounting seats and 5 threaded connecting pieces.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to the accompanying drawings 1-5, this embodiment includes frame 1, is equipped with two main rolls 2 in the frame 1, is equipped with two auxiliary rolls 3 between two main rolls 2, and the both ends cover of auxiliary roll 3 is equipped with eccentric mount pad 4, and eccentric mount pad 4 passes through threaded connection spare 5 to be installed in frame 1, and threaded connection spare 5 is a plurality of, and is array distribution around the axis of eccentric mount pad 4, and auxiliary roll 3 is tangent and around mutually with the line of cut through rotatory eccentric mount pad 4, and the bow length of being qualified for the next round of competitions can be: the length of the cutting line between two main rolls 2 (after removal of the secondary rolls 3), or between two secondary rolls 3, or between one main roll 2 and one secondary roll 3. Here, it should be noted that: by surrounding it is meant that a portion of the outer circumference of the sub-roll 3 is covered by the cutting line. In the embodiment, the eccentric mounting seat 4 is mounted on the frame 1 through a screw, when the length of a wire bow needs to be adjusted, the screw is taken down, and after the eccentric mounting seat 4 is rotated by an angle, the screw is mounted and fixed. The rotation of the eccentric mounting seat 4 drives the auxiliary roller 3 in the eccentric mounting seat 4 to rotate, and the auxiliary roller 3 can adjust the length of the wire bow. The auxiliary roller 3 and the eccentric mounting seat 4 are arranged between the two main rollers 2, so that the space of the main shaft device can be effectively utilized, the increase of the size of the main shaft device is avoided, or the structural modification of the main shaft device is reduced, and the modification difficulty and the modification cost are reduced.

The two sub-rolls 3 are symmetrically arranged along the center line between the two main rolls 2. This arrangement facilitates cutting of the workpiece when the workpiece is ground near the middle of the two main rolls 2.

The diameter of the eccentric mount 4 is smaller than or equal to the diameter of the main roller 2. This arrangement can further avoid an increase in the size of the spindle device or a reduction in structural modification of the spindle device.

The eccentric mounting seats 4 are divided into two groups, the two groups of eccentric mounting seats 4 are arranged along the length direction of the main shaft, and the number of each group of eccentric mounting seats 4 is even and is more than two. Each group of eccentric mounting seats 4 is arranged between two main rollers 2, and the number of the eccentric mounting seats is larger than that of the auxiliary rollers 3. By this arrangement, the auxiliary roller 3 is mounted on the other eccentric mounting 4, the length of the loop of wire can be as small as possible, and the range of the length of the loop of wire that can be adjusted is larger. The concrete expression is as follows: the maximum value W of the bow length is the length of the cutting line between the two main rollers 2, and the value below W is the value of the bow length range that can be adjusted by the design. With this arrangement, the length of the wire loop can be obtained in a range of W or less.

The eccentric mounting seats 4 in each group are symmetrically arranged along the central line between the two main rollers 2, and when a workpiece is ground at the position close to the middle of the two main rollers 2, the workpiece is convenient to cut.

The secondary roller 3 is inserted in the eccentric mounting seat 4 through a bearing sleeve.

In this embodiment, the eccentric mounting seats 4 are rotated by the same angle in the same direction or by the same angle in the opposite direction, so that the length of the cutting line between the two sub-rolls 3 or between the two main rolls 2 can be rapidly adjusted.

According to the invention, the eccentric mounting seat 4 and the auxiliary roller 3 are arranged between the two main rollers 2, the space between the two main rollers 2 is utilized for reconstruction, the size of the main rollers 2 does not need to be modified, particularly the mounting size of the main rollers 2 is increased, and the design can avoid the increase of the size of the main shaft device, so that the reconstruction cost is saved, the reconstruction difficulty is reduced and the convenience of the main shaft device is maintained. The wire bow length obtained by this setup was: the length of the cutting line between the two main rollers 2, or between the two sub-rollers 3, or between one main roller 2 and one sub-roller 3, which results in a wider range of loop lengths. By installing more eccentric mounts 4 between the two main rollers 2, a smaller bow length can be achieved, further extending the bow length range.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a main shaft device of adjustable bow length, a serial communication port, which comprises a frame, be equipped with two main rolls in the frame, be equipped with two auxiliary rollers between two main rolls, the both ends cover of auxiliary roller is equipped with eccentric mount pad, eccentric mount pad passes through threaded connection spare and installs in the frame, threaded connection spare is a plurality of, and is the array distribution around the axis of eccentric mount pad, the auxiliary roller is tangent and centers on mutually with the line of cut through rotatory eccentric mount pad.

2. The adjustable wire bow length spindle assembly according to claim 1, wherein the two secondary rollers are symmetrically disposed along a center line between the two main rollers.

3. The adjustable wire bow length spindle assembly according to claim 2, wherein the eccentric mount has a diameter less than or equal to a diameter of the main roller.

4. The wire bow length adjustable spindle device according to claim 3, wherein the eccentric mounts are divided into two groups, the two groups of eccentric mounts are arranged along the length direction of the spindle, and the number of the eccentric mounts in each group is even and greater than two.

5. The adjustable wire bow length spindle assembly according to claim 4, wherein the eccentric mounts in each set are symmetrically disposed along a centerline between the two main rollers.

6. The adjustable wire bow length spindle assembly according to claim 5, wherein the secondary roller is inserted into the eccentric mount through a bearing housing.