CN210877327U

CN210877327U - Metal mesh wire end cutting machine

Info

Publication number: CN210877327U
Application number: CN201921523680.XU
Authority: CN
Inventors: 招志永
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-13
Filing date: 2019-09-13
Publication date: 2020-06-30
Anticipated expiration: 2029-09-13

Abstract

A metal mesh end cutting machine comprises a rack, a workpiece table and a cutter assembly, wherein the workpiece table is driven to move by a screw rod nut mechanism, the screw rod nut mechanism is driven by a numerical control motor, the cutter assembly is connected with the rack in a sliding mode, the rack is provided with a driving mechanism for driving the cutter assembly to move, a positioning block is fixed on a movable cutter in the cutter assembly, and in the shearing action process of the movable cutter, the positioning block and the outer frame of a processed metal mesh keep jacking pressure. The utility model has the advantages that can adapt to the metal mesh's of different specifications end of a thread interval in a flexible way, can guarantee moreover that the incision on each end of a thread keeps the same distance with metal mesh's outline, guarantees the tip parallel and level of all wires after the excision end of a thread, moreover, need not artifical removal metal mesh, can alleviate operative employee's intensity of labour and the reliance to proficiency.

Description

Metal mesh wire end cutting machine

Technical Field

The utility model relates to a prune the equipment of metal mesh piece, especially relate to the end of a thread excision machine for metal mesh piece excision end of a thread.

Background

In the process of manufacturing the metal mesh, the thread ends of a plurality of metal wires protruding out of the mesh frame are cut off by a thread end cutting machine after the welding process is finished. However, the existing thread end cutting machine cannot flexibly adapt to different thread end distances, the end parts of all metal wires cut after the thread ends are difficult to be leveled, and the ends of individual metal wires are often required to be manually polished after the thread ends are cut.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a metal mesh piece end of a thread excision machine, this end of a thread excision machine not only can adapt to the metal mesh piece's of different specifications line head interval in a flexible way, enables the tip parallel and level of all wires behind the excision line head moreover.

The utility model discloses a realize like this: the metal mesh wire end cutting machine comprises a rack, wherein the rack is provided with a workpiece table for bearing a metal mesh to be processed, a cutter assembly is arranged beside the workpiece table, and the cutter assembly comprises a movable cutter for shearing;

the workpiece table is connected with the rack in a sliding manner, the rack is provided with a screw rod and nut mechanism for driving the workpiece table to move, and the screw rod and nut mechanism is driven by a numerical control motor;

the cutter assembly is connected with the rack in a sliding manner, the rack is provided with a driving mechanism for driving the cutter assembly to move, and the driving mechanism drives the cutter assembly to move towards or back to the workpiece table;

the movable cutter is fixed with a positioning block, and in the process of shearing action of the movable cutter, the cutter assembly is driven by the driving mechanism to keep the trend of moving towards the workpiece table, so that the positioning block and the outer frame of the processed metal mesh keep the jacking pressure.

In a preferred embodiment, the movable cutter is integrally formed with the positioning block.

In a preferred embodiment, the driving mechanism for driving the cutter assembly to move is an air cylinder.

In a preferred embodiment, the positioning block is located below the cutting edge of the movable cutter and is offset to the side below the cutting edge in a direction avoiding the thread end to be cut.

The utility model has the advantages that the screw rod nut mechanism driven by the numerical control motor can control the workpiece platform to accurately move in a stepping mode, and the stepping distance of the workpiece platform can be flexibly set as long as the operation parameters of the numerical control motor are changed, so that the wire end spacing of the metal mesh sheets with different specifications can be flexibly adapted; on the other hand, in the process of shearing action of the movable cutter, the positioning block on the movable cutter and the outer frame of the metal mesh sheet keep the jacking pressure, so that the same distance between the notch on each thread end and the outer frame of the metal mesh sheet can be ensured, and the end parts of all metal wires cut off the thread ends are flush. In addition, the movement of the workpiece table can be automatically completed through a numerical control motor, the metal mesh does not need to be moved manually, and the labor intensity of operators and the dependence on proficiency can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is an enlarged view of a portion of fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The utility model discloses an embodiment of metal mesh net end of a thread excision machine is shown in figure 1, figure 2. The metal mesh wire end cutting machine comprises a rack 1, wherein the rack 1 is provided with a workpiece table 2, and two sides of the workpiece table 2 are respectively provided with a cutter assembly 3.

A jig 4 for fixing the metal mesh sheet is provided on the work table 2. The metal mesh sheet 12 to be processed is fixed on the work table 2 by the jig 4. The specific structure of the clamp 4 can be selected from various existing clamp types. For example, the clamp may be composed of an air cylinder and a pressing block, the air cylinder drives the pressing block to move downward, and the pressing block presses the metal mesh to be processed on the workpiece table 2.

The workpiece table 2 is connected with the frame 1 in a sliding way. The frame 1 is provided with a screw rod nut mechanism for driving the workpiece platform 2 to move. A screw rod 5 of the screw rod nut mechanism is connected with a numerical control motor 6, and a nut 7 of the screw rod nut mechanism is fixedly connected with the workpiece table 2. The numerical control motor 6 drives the screw rod 5 to rotate in a stepping mode, and the screw rod 5 drives the nut 7 to accurately move together with the workpiece table 2 in the stepping mode. The workpiece table 2 moves by a distance equal to the distance between the wire ends of the metal mesh sheet in each step. The stepping distance of the workpiece table 2 can be adjusted by changing the operation parameters of the numerical control motor 6, so that the wire end spacing of the metal mesh sheets with different specifications can be adapted. As another embodiment, the feed screw 5 of the feed screw-nut mechanism may be fixedly connected to the workpiece table 2, the nut 7 of the feed screw-nut mechanism may be connected to the numerical control motor 6, the numerical control motor 6 drives the nut 7 to rotate in a stepping manner, and the nut 7 drives the feed screw 5 and the workpiece table 2 to move together in a stepping manner. Since the screw 5 in fig. 1 is located below the work head 2, the screw 5 should not be visible in the plan view shown in fig. 2. However, fig. 2 still shows the spindle 5 for the sake of clarity, while fig. 2 omits the nut connected to the spindle. In addition, fig. 2 also omits the machine frame in fig. 1 and the metal mesh to be processed, which is fixed on the workpiece table, for the sake of simplicity of illustration.

The cutter assembly 3 is connected with the frame 1 in a sliding way. The frame 1 is provided with a cylinder 8 which drives the cutter assembly 3 to move. The air cylinder 8 drives the cutter assembly 3 to move towards or away from the workpiece table 2. Besides the air cylinder, the driving mechanism for driving the cutter assembly 3 to move can also adopt other mechanisms such as a gear rack mechanism, a linear motor and the like.

Each cutter assembly 3 comprises a movable cutter 9 and a static cutter 10. When cutting off the thread end of the metal mesh, the static cutter 10 is fixed, and the movable cutter 9 performs shearing action. The shearing action is completed by driving the cutting knife 9 to move downwards by the air cylinder in the cutting knife assembly 3. Besides the air cylinder, other mechanisms such as a slider-crank mechanism can be used to realize the shearing action of the movable cutter 9.

Referring to fig. 1 and 3, a positioning block 11 is fixed on the movable cutter 9. Before the movable cutter 9 performs a shearing action, the air cylinder 8 drives the cutter assembly 3 to move towards the workpiece table 2 until the positioning block 11 is pressed against the outer frame 12a of the processed metal mesh 12. In the process of downward shearing action of the movable cutter 9, the cutter assembly 3 is driven by the cylinder 8 to keep a trend of moving towards the workpiece table 2, so that a certain jacking pressure is kept between the positioning block 11 and the outer frame 12a of the metal mesh. Thus, the cut of the movable cutter 9 on each thread end 12b of the metal mesh sheet is kept at the same distance (the distance can be zero) with the outer frame 12a of the metal mesh sheet, so that the end parts of all the metal wires after the thread ends are cut off are flush. In a preferred embodiment, the movable cutter 9 is integrally formed with the positioning block 11.

As a best mode, referring to fig. 3, the positioning block 11 is located below the cutting edge 9a of the movable cutter 9 and is biased to the side below the cutting edge 9a toward a direction avoiding the thread end 12b to be cut. The structure can enable each thread end 12b to be cut to reach the lower part of the blade 9a before hitting the positioning block 11 in the process of moving along with the metal mesh sheet, so that the positioning block 11 can be always pressed against the outer frame 12a of the metal mesh sheet in the process of moving the metal mesh sheet. The arrow in fig. 3 indicates the direction of movement of the wire mesh sheet, i.e. the direction of movement of the thread end 12b to be cut.

The working principle of the embodiment is as follows: the cylinder 8 drives the cutter assembly 3 to move towards the workpiece table 2 until the positioning block 11 is pressed against the outer frame 12a of the metal mesh sheet, the positioning block 11 is pressed against the outer frame 12a of the metal mesh sheet all the time, and then the screw rod and nut mechanism drives the workpiece table 2 to move. When the workpiece table 2 reaches the first position where the thread end needs to be cut off, the movable cutter 9 stops, and then the thread end 12b is cut off by performing a cutting action. After the thread end is cut off, the air cylinder in the cutter assembly 3 drives the movable cutter 9 to reset upwards, and then the screw rod and nut mechanism drives the workpiece table 2 to move by one step, so that the next thread end to be cut off moves in place, and the positioning block 11 always presses against the outer frame 12a of the metal mesh. Then the cutting action is performed again by the movable cutter 9 to cut off the next thread end moved in place. If the net piece has a thread end which does not need to be cut off, the air cylinder 8 drives the cutter assembly 3 to move back to the workpiece table 2, so that the positioning block 11 is away from the outer frame 12a of the metal net piece, after the workbench 2 drives the metal net piece to move and skip the position where the thread end does not need to be cut off, the air cylinder 8 drives the cutter assembly 3 to move towards the workpiece table 2 again, the positioning block 11 is pressed on the outer frame 12a of the metal net piece again, and then the action of cutting off the thread end is repeated. The process is repeated continuously until all the wire ends needing to be cut off are cut off, the workbench is reset, and the metal mesh is taken away.

The cutter assemblies 3 are respectively arranged on two sides of the workpiece platform, and the two cutter assemblies 3 have the same structure. The two cutter assemblies 3 can act simultaneously to improve the working efficiency. According to actual needs, a cutter assembly can be arranged beside the workpiece table.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. For those skilled in the art, without departing from the spirit of the present invention, several modifications and improvements can be made without departing from the scope of the present invention. The protection scope of the present invention should be subject to the appended claims.

Claims

1. Wire netting end of a thread resection machine, including the frame, the frame is equipped with the work piece platform that bears the metal netting of processing, and the side of work piece platform is equipped with the cutter assembly, and the cutter assembly is including doing the cutter that moves of shearing action, characterized by:

2. The metal mesh thread end cutting machine according to claim 1, wherein the movable cutter is integrally formed with the positioning block.

3. The metal mesh sheet thread end cutting machine according to claim 1, wherein said driving mechanism for moving said cutter assembly is an air cylinder.

4. The metal mesh sheet thread end cutter of claim 1, wherein the positioning block is located below the cutting edge of the movable cutter and is offset to the side below the cutting edge in a direction to avoid the thread end to be cut.