CN111229936A

CN111229936A - Device and method for shearing label at arc end part of small hole

Info

Publication number: CN111229936A
Application number: CN202010071632.2A
Authority: CN
Inventors: 路长厚; 陈淑江; 张建川
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-06-05

Abstract

The invention discloses a device and a method for shearing a label at the end part of a small hole arc, which comprises a female die, a material guide chute, a reference plate, a small hole punching needle, a male die, a guide post, a spring and a material pressing and discharging plate, wherein the male die and the small hole punching needle are connected to the reference plate, and the reference plate is connected with the guide post; the female die is arranged on the base, the male die and the guide post both penetrate through the material pressing and discharging plate, the male die, the guide post and the material pressing and discharging plate are in clearance fit to ensure relative movement, and the guide post is sleeved with the spring; the end surface of the male die is flush with the end surface of the small-hole punching needle; the end face of the male die is provided with blades for cutting the arc end of the small hole, the blades on two sides are symmetrically arranged, and the blades on two sides are arc blades. The invention can ensure that the small hole circular arc of the metal label can still be accurately processed under the condition of high-efficiency processing.

Description

Device and method for shearing label at arc end part of small hole

Technical Field

The invention relates to the field of metal label manufacturing, in particular to a device and a method for shearing a label at the arc end part of a small hole.

Background

Metal labels have a large number of applications in the industrial field, with characters (the general term for numbers, letters, various symbols and various patterns) thereon. The metal label for printing the vulcanized tire number on the surface of the tire requires that the end part of the label is in a square head chamfer structure (shown in figures 2 and 3) for aesthetic reasons, and requires that a small hole is arranged and positioned on the tire mold (realized by the small holes at the two ends of the label shown in figures 2 and 3).

In the existing public literature, a Chinese patent with the patent number ZL201010232108.5 provides a fan-shaped label forming and cutting device, a Chinese patent with the patent number CN2628195 provides a special device for cutting a metal strip, the device provides a cutting system structure, and an implementation method and a technology of an end part shape and a structure are not provided.

The inventors believe that a difficulty in the manufacturing process of a metal label with a small circular end portion is that the processing accuracy still needs to be maintained while the continuous processing is maintained.

Disclosure of Invention

Aiming at the defects of the prior metal label device and method which lack a processed small-hole arc end part structure and the technical contradiction which is difficult to overcome in the prior method for continuously processing the small-hole arc end part metal label, the invention aims to provide a small-hole arc end part label shearing device and a method.

The invention provides a small-hole arc end label cutting device.

The invention provides a method for cutting a small-hole arc end label.

In order to realize the purpose, the invention discloses the following technical scheme:

the invention discloses a small-hole arc end label shearing device which comprises a female die, a material guide groove, a reference plate, a small-hole punching needle, a male die, a guide post, a spring and a material pressing and discharging plate, wherein the male die and the small-hole punching needle are connected to the reference plate, and the reference plate is connected with the guide post; the female die is arranged on the base, the male die and the guide post both penetrate through the material pressing and discharging plate, the male die, the guide post and the material pressing and discharging plate are in clearance fit to ensure relative movement, and the guide post is sleeved with the spring;

the end surface of the male die is flush with the end surface of the small-hole punching needle;

the end face of the male die is provided with blades for cutting the arc end of the small hole, the blades on two sides are symmetrically arranged, and the blades on two sides are arc blades.

Furthermore, two small hole punching needles are arranged and are symmetrical about a first symmetry axis; the arc knife edges on two sides are symmetrical about a first symmetry axis.

Furthermore, the two small hole punching needles are respectively positioned at two sides of the male die.

Furthermore, the end face of the male die is provided with a first rectangular part, a first arc cutting edge, a second rectangular part and a second arc cutting edge which are sequentially connected in a closed loop mode.

Further, the first arc cutting edge and the second arc cutting edge are both arc-shaped, the first arc cutting edge is symmetrical about a second symmetry axis, and the second arc cutting edge is symmetrical about the second symmetry axis.

Further, the radius and radian of the first arc blade and the second arc blade are equal.

Further, the structure of the female die is matched with that of the male die.

Further, the guide chute is used for guiding the label to be cut, and is provided with a passage for the label to be cut to pass through; the male die and the female die are respectively positioned on the upper side and the lower side of the channel.

Further, the upper end of the spring can be in contact with the reference plate, and the lower end of the spring can be in contact with the material pressing and discharging plate; the reference plate is connected with a reciprocating power source.

In a second aspect, the invention discloses a method for producing a strip-shaped metal label, which uses the small hole arc end label shearing device and comprises the following steps:

1) guiding the label to be cut into a material pouring groove;

2) the label to be cut is driven by the power source to advance step by step;

3) every fixed time t1, or every time the label to be cut moves a certain distance s1, the reciprocating power source is started in the positive direction to drive the reference plate to descend in the vertical direction, the pressure material discharging plate presses the label to be cut firstly, the end face of the male die cuts the label to be cut, the small hole punching needle punches a hole, after the cutting and the punching are finished, the reciprocating power source is started in the reverse direction to drive the reference plate to reset, and the pressure material discharging plate pushes the formed label out of the male die.

Compared with the prior art, the invention has the following beneficial effects:

1) in the invention, the metal label is blanked and cut by using the male die and the small-hole drill point, and the processes of punching, cutting and chamfering can be completed at one time in the production process of the metal label, so that the process is saved.

2) According to the invention, the automatic reciprocating mechanism is adopted, so that the automatic forming machine has the advantages of high automation degree, forming precision and production efficiency, simple structure and convenience in use, and the continuous forming of the labels is ensured by cutting one end structure of each of the two labels at a time.

3) In the invention, the shapes of the two sides of the male die are kept consistent so as to ensure the consistent specification of the final sliced finished product, and meanwhile, because the working mode of the invention is reciprocating movement in the vertical direction, the invention can also avoid the phenomenon of beveling and can ensure the final processing effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

Figure 1 is a schematic diagram of a single tag in the background art,

figure 2 is an overall schematic view of embodiment 1,

figure 3 is a schematic view of the embodiment 2,

fig. 4 is a schematic end view of the punches of examples 1 and 2.

In the figure, 1, a female die, 2, a guide groove, 3, a reference plate, 4, a male die, 5, a guide column, 6, a spring, 7, a material pressing and discharging plate, 100, an arc end part, 200, a round hole, 300, a number, 500, a to-be-sheared position, 501, a forming end part, 41, a first rectangular part, 42, a first arc blade, 43, a second rectangular part, 44, a second arc blade, 51, a first small hole punching needle, 52 and a second small hole punching needle.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention, and furthermore, the terms "first", "second", "third", etc., are only used for descriptive purposes and are not intended to indicate or imply relative importance.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As described in the background art, aiming at the defects of the conventional metal label device and method lacking a machined small-hole arc end structure and the technical contradiction which is difficult to overcome in the conventional method for continuously machining the small-hole arc end metal label, the invention aims to provide a small-hole arc end label shearing device which adopts a device suitable for machining the small-hole arc end metal label and can ensure that the small-hole arc of the metal label can be accurately machined under the condition of high-efficiency machining.

Example 1

The embodiment discloses a small-hole arc end label shearing device which comprises a female die 1, a material guide groove, a reference plate 3, a small-hole punching needle, a male die 4, a guide post 5, a spring 6 and a material pressing and discharging plate 7, wherein the male die 4 and the small-hole punching needle are connected to the reference plate 3, and the reference plate 3 is connected to the guide post 5; the female die 1 is arranged on the base, the male die 4 and the guide post 5 both penetrate through the material pressing and discharging plate 7, the male die 4, the guide post 5 and the material pressing and discharging plate 7 are in clearance fit to ensure relative movement, and the spring 6 is sleeved with the guide post 5;

the end surface of the male die 4 is flush with the end surface of the small-hole punching needle;

the end face of the male die 4 forms a blade for cutting the arc end of the small hole, the blades on the two sides are symmetrically arranged, and the blades on the two sides are arc blades.

The number of the small hole punching needles is two, and the two small hole punching needles are symmetrical about a first symmetry axis; the arc knife edges on two sides are symmetrical about a first symmetry axis.

The two small hole punching needles are respectively positioned at two sides of the male die 4.

The end face of the punch 4 has a first rectangular portion 41, a first circular-arc blade 42, a second rectangular portion 43, and a second circular-arc blade 44 connected in a closed loop in this order.

The first arc blade 42 and the second arc blade 44 are both arc-shaped, the first arc blade 42 is symmetrical about a second axis of symmetry, and the second arc blade 44 is symmetrical about the second axis of symmetry.

The first circular arc blade 42 and the second circular arc blade 44 have equal radius and radian.

The embodiment is directed to manufacturing the small hole arc end of the strip-shaped metal tag, and it should be noted that the arc end of the metal tag is arc-shaped, the arc has a radian θ, a radius r and a circle center O, the radians and the radii of the two arc ends are equal, the circle centers are located on the same straight line parallel to the long edge of the metal tag,

the punch 4 in this embodiment therefore acts as a cutting tool to cut the material, i.e. the metal label to be cut, which is to be cut in the form of a continuous strip, in the production line of this embodiment.

In previous production processes, the circular arc of the metal label was cut after the metal label was cut into individual pieces. The disadvantage of this production method is that it is time-consuming to position each individual metal label during the cutting of the chamfer. In the present embodiment, after the study on the processing of the metal label, it is considered that the two steps of cutting the chamfer or fillet and cutting the single body can be combined into one step, and the positioning manner is optimized.

The structure of the female die 1 is adapted to the male die 4.

The guide chute is used for guiding the label to be cut and comprises a passage for the label to be cut to pass through; the male die 4 and the female die 1 are respectively positioned on the upper side and the lower side of the channel.

The spring 6 is sleeved on the guide post, the upper end of the spring 6 can be in contact with the reference plate 3, and the lower end of the spring 6 can be in contact with the material pressing and discharging plate 7.

It is understood that the reference plate 3 is connected to a reciprocating power source, which may be a motor.

It should be noted that the first rectangular part 41 and the second rectangular part 43 may be end faces, and the end faces and the blade edges are flush; or a plurality of blunt blades which are only arranged in a rectangular shape. The first rectangular portion 41 and the second rectangular portion 43 do not participate in the cutting.

Example 2

Embodiment 2 discloses a method for cutting a label at an arc end of a small hole, which uses the device for cutting a label at an arc end of a small hole disclosed in embodiment 1, and comprises the following steps:

1) guiding the label to be cut into a material pouring groove;

2) the label to be cut is driven by the power source to advance step by step;

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A shearing device for a label at the arc end part of a small hole is characterized by comprising a female die, a material guide chute, a reference plate, a small hole punching needle, a male die, a guide post, a spring and a material pressing and discharging plate, wherein the male die and the small hole punching needle are connected to the reference plate, and the reference plate is connected with the guide post; the female die is arranged on the base, the male die and the guide post both penetrate through the material pressing and discharging plate, the male die, the guide post and the material pressing and discharging plate are in clearance fit to ensure relative movement, and the guide post is sleeved with the spring;

2. The eyelet end circular arc label shearing device according to claim 1, wherein two eyelet punching pins are provided, and the two eyelet punching pins are symmetrical about a first symmetry axis; the arc knife edges on two sides are symmetrical about a first symmetry axis.

3. The eyelet end tab shearing device of claim 2, wherein two of said eyelet punch pins are located on each side of the punch.

4. The eyelet point label cutter as claimed in claim 1, wherein the face of the punch has a first rectangular portion, a first circular edge, a second rectangular portion, and a second circular edge in sequential closed loop engagement.

5. The aperture radius end label trimmer of claim 4, wherein said first radius edge and said second radius edge are each radiused, said first radius edge being symmetric about a second axis of symmetry, said second radius edge being symmetric about a second axis of symmetry.

6. The aperture radius end label trimmer of claim 4, wherein said first circular blade and said second circular blade are of equal radius and arc.

7. The eyelet point round end label cutter as claimed in claim 1, wherein said female die is configured to conform to said male die.

8. The small bore circular arc end label cutter of claim 1, wherein said chute is for guiding labels to be cut, said chute having a passage for the labels to be cut to pass through; the male die and the female die are respectively positioned on the upper side and the lower side of the channel.

9. The eyelet point round end label cutter of claim 1, wherein the upper end of said spring is adapted to contact a datum plate and the lower end of said spring is adapted to contact a stripper plate; the reference plate is connected with a reciprocating power source.

10. A method for cutting a label at an end of a small hole arc, using the apparatus for cutting a label at an end of a small hole arc according to any one of claims 1 to 9, comprising the steps of:

1) guiding the label to be cut into a material pouring groove;

2) the label to be cut is driven by the power source to advance step by step;