CN216947608U

CN216947608U - Ear belt shearing device

Info

Publication number: CN216947608U
Application number: CN202220417457.2U
Authority: CN
Inventors: 李小燕
Original assignee: Dongguan Hongguan Technology Co ltd
Current assignee: Dongguan Hongguan Technology Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-12
Anticipated expiration: 2032-02-28

Abstract

The utility model belongs to the technical field of mask equipment, and particularly relates to a planar ear band shearing device which comprises a mounting plate, a driving motor, an eccentric wheel, a connecting rod, a sliding rail and two shearing knives; the driving motor is arranged at the upper end of the mounting plate, and the eccentric wheel is arranged on a main shaft of the driving motor; the sliding rail is connected to the mounting plate in a sliding manner, and the connecting rod is connected with the eccentric wheel and the sliding rail; the two shearing knives are crossed, overlapped and rotationally connected, and at least one shearing knife is rotationally connected with the sliding rail; the mounting plate is provided with a first extrusion rod and a second extrusion rod, the slide rail rises, the first extrusion rod extrudes the shearing knives, so that the two shearing knives are in an open state, the slide rail descends, and the second extrusion rod extrudes the shearing knives, so that the two shearing knives are in a shearing state. This ear area shearing mechanism can realize the shearing of ear area through a driving motor, at the in-process of operation, does not have the impact, not only moves stably to the noise is little.

Description

Ear belt shearing device

Technical Field

The utility model belongs to the technical field of mask production equipment, and particularly relates to an ear band shearing device.

Background

The mask is an important epidemic prevention substance, and is formed by welding a plurality of layers of non-woven fabrics and melt-blown fabrics, and ear bands are welded on the mask. Before the ear belt is welded on the mask, the ear belt is required to be conveyed to a certain length through the ear belt conveying mechanism, the ear belt is clamped through the ear belt clamp, and the ear belt is cut off through the shearing mechanism, so that the two ends of the ear belt can be clamped on the mask through the ear belt clamp and welded with the mask. The existing ear band shearing mechanism is characterized in that a translation cylinder is connected with a pneumatic scissors, the pneumatic scissors are pushed to extend to an ear band through the translation cylinder so as to shear the ear band, the translation cylinder and the pneumatic scissors can cause large noise when running, and the translation cylinder and the pneumatic scissors are respectively driven by two independent powers; and adopt pneumatic drive, have great impact, lead to it to become flexible easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ear band shearing device, which solves the problems that the existing ear band shearing mechanism needs two power drives, and simultaneously, the impact force is large and the noise is large in the operation process.

In order to achieve the above purpose, an ear band shearing device provided by the embodiment of the utility model comprises a mounting plate, a driving motor, an eccentric wheel, a connecting rod, a sliding rail and two shearing knives; the driving motor is arranged at the upper end of the mounting plate, and the eccentric wheel is arranged on a main shaft of the driving motor; the slide rail is connected to the mounting plate in a sliding manner, and the connecting rod is connected with the eccentric wheel and the slide rail; the two shearing knives are crossed, overlapped and rotationally connected, and at least one shearing knife is rotationally connected with the sliding rail; be provided with first squeeze bar and second squeeze bar on the mounting panel, the slide rail rises, first squeeze bar extrusion cut the sword, make two it is open state to cut the sword, the slide rail descends, the extrusion of second squeeze bar cuts the sword, makes two it is the state of cutting to cut the sword.

Further, the side of mounting panel still is provided with the guide holder, be equipped with the guide way on the guide holder, the slide rail with guide way sliding connection.

Furthermore, a connecting shaft sequentially penetrates through the two shearing knives to be connected with the sliding rail; the first extrusion rods are two in number and are oppositely arranged on the mounting plate, and the second extrusion rods are two in number and are oppositely arranged on two sides of the mounting plate; the sliding rail ascends, the two first extrusion rods outwards strut the upper ends of the two shearing knives, the sliding rail descends, and the two second extrusion rods extrude the outer sides of the upper ends of the two shearing knives.

Furthermore, four adjusting sliding grooves are oppositely arranged on the mounting plate, and each first extrusion rod and each second extrusion rod are oppositely connected in the corresponding adjusting sliding groove.

Further, the outer end of connecting axle is provided with spacing portion, it is equipped with compression spring still to overlap on the connecting axle, compression spring extrusion is two the shearing sword is laminated each other.

Further, the first extrusion rod and the second extrusion rod are both sleeved with fixed bearings.

Furthermore, the upper ends of the two shearing knives are also provided with a deflector rod, and the inner side of the deflector rod is provided with a deflector inclined plane and a guide plane which are used for being attached to the first extrusion rod; the outer side of the upper end of the shearing knife is also provided with an extrusion inclined plane, and the extrusion inclined plane and the outer side of the shearing knife are arranged at an obtuse angle.

Further, the upper end of the mounting plate is also provided with a proximity switch for sensing the position of the upper end of the connecting rod.

One or more technical solutions in the ear band cutting device provided by the embodiment of the present invention at least have the following technical effects:

1. when the ear band is cut off by the ear band cutting device, the eccentric wheel is driven to rotate by the driving motor, the eccentric wheel pushes the connecting rod, and further pushes the sliding rail and the shearing knife to move downwards, and when the shearing knife descends, the second extrusion rod pushes the included angle of the two shearing knives to be gradually reduced until the cutting parts of the shearing knives are overlapped, so that the ear band is cut off; after the ear band is cut off, the eccentric wheel continues to rotate, the sliding rail and the two shearing knives are further pulled to move upwards simultaneously, the first extrusion rod extrudes the inner sides of the shearing knives, the included angle between the two shearing knives is gradually increased, and the two shearing knives are opened.

2. This ear area shearing mechanism can realize the shearing of ear area through a driving motor, at the in-process of operation, does not have the impact, not only moves stably to the noise is little.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

Fig. 1 is a block diagram of an ear band cutting device according to an embodiment of the present invention.

Fig. 2 is a front view of an ear band cutting device according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, referring to fig. 1 and 2, an ear band cutting apparatus includes a mounting plate 100, a driving motor 200, an eccentric 300, a connecting rod 400, a sliding rail 500, and two cutting blades 600. The driving motor 200 is disposed at an upper end of the mounting plate 100, and the eccentric wheel 300 is disposed on a main shaft of the driving motor 200. The slide rail 500 is slidably connected to the mounting plate 100, and the connecting rod 400 connects the eccentric wheel 300 and the slide rail 500. The two shearing knives 600 are alternately overlapped and rotatably connected, and at least one shearing knife 600 is rotatably connected with the sliding rail 500. Be provided with first extrusion pole 101 and second extrusion pole 102 on the mounting panel 100, slide rail 500 rises, first extrusion pole 101 extrusion cut sword 600, make two cut sword 600 and be the open mode, slide rail 500 descends, second extrusion pole 102 extrusion cut sword 600, make two cut sword 600 and be the shear mode. In this embodiment, when an ear band is cut, the driving motor 200 drives the eccentric wheel 300 to rotate, the eccentric wheel 300 pushes the connecting rod 400, and further pushes the sliding rail 500 and the cutting blade 600 to move downward, and when the cutting blade 600 descends, the second extrusion rod 102 pushes the two cutting blades 600 to gradually decrease the included angle until the cut portions of the cutting blades 600 coincide, so as to cut the ear band. After the ear band is cut off, the eccentric wheel 300 continues to rotate, so as to pull the sliding rail 500 and the two shearing knives 600 to move upwards at the same time, and the first extrusion rod 101 extrudes the inner sides of the shearing knives 600, so that the included angle between the two shearing knives 600 is gradually increased, and the two shearing knives 600 are opened. The ear belt shearing device can realize shearing of the ear belt through one driving motor 200, and has no impact force in the operation process, stable operation and low noise.

Further, referring to fig. 1 and 2, a guide seat 110 is further disposed on a side surface of the mounting plate 100, a guide groove is disposed on the guide seat 110, and the slide rail 500 is slidably connected to the guide groove. In this embodiment, the sliding rail 500 slides in the sliding slot, so as to provide a good guiding function for the sliding rail 500. And can support the sliding rail 500 through the guide seat 110, ensuring that the connecting rod 400 can be connected to the eccentric wheel 300 and the sliding rail 500.

Further, in an embodiment where the two cutting blades 600 are connected, specifically, referring to fig. 1 and 2, the connecting shaft 700 sequentially penetrates through the two cutting blades 600 to be connected to the sliding rail 500, so that the two cutting blades 600 can rotate relatively. In order to cooperate with the two shearing knives 600 to rotate simultaneously, the first pressing rods 101 are two and are oppositely disposed on the mounting plate 100, and the second pressing rods 102 are two and are oppositely disposed on both sides of the mounting plate 100. The slide rail 500 rises, the two first extrusion rods 101 outwards prop open the upper ends of the two shearing knives 600, the slide rail 500 descends, and the two second extrusion rods 102 extrude the outer sides of the upper ends of the two shearing knives 600, so that the two shearing knives 600 shear ear bands.

Further, referring to fig. 1 and 2, four adjusting sliding grooves 103 are oppositely disposed on the mounting plate 100, and each of the first pressing rods 101 and each of the second pressing rods 102 are oppositely connected in the corresponding adjusting sliding groove 103. And then the positions of the first pressing bar 101 and the second pressing bar 102 can be adjusted so as to adjust the cutting angle and the opening angle of the two cutting knives 600.

Further, referring to fig. 1 and 2, the outer end of the connecting shaft 700 is provided with a limiting portion 701, a compression spring 702 is further sleeved on the connecting shaft 700, and the compression spring 702 extrudes two shearing knives 600 to be attached to each other. In this embodiment, the two cutting knives 600 are attached more tightly by compressing the spring 702, and the ear bands are cut off by the two cutting knives 600; and when the two shearing knives 600 shear the hard objects, the compression spring 702 is extruded, so that the two shearing knives 600 have gaps, the hard objects are avoided, and the two shearing knives 600 can be well protected.

Further, the first extrusion rod 101 and the second extrusion rod 102 are both sleeved with fixed bearings. Further, friction between the shearing blade 600 and the first and second

pressing bars

101 and 102 can be reduced, and abrasion can be reduced.

Further, referring to fig. 1 and 2, a shift lever 601 is further disposed at the upper end of each of the two shearing knives 600, and a shift inclined surface and a guide surface are disposed on the inner side of the shift lever 601 and are used for being attached to the first extrusion rod 101. The outer side of the upper end of the shearing knife 600 is also provided with an extrusion inclined plane, and the extrusion inclined plane and the outer side of the shearing knife 600 are arranged at an obtuse angle. The deflector rod 601 is arranged, so that the deflector rod 601 can be replaced, and the shearing knife 600 can be well protected. And the pressing slope is provided so that the two cutting blades 600 can be better pressed by the second pressing bar 102.

Further, referring to fig. 1 and 2, the upper end of the mounting plate 100 is further provided with a proximity switch 120 for sensing the position of the upper end of the link 400. And then can detect whether two shearing knives 600 are in an opening state or a shearing state, so as to be convenient for better controlling the ear band shearing device.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ear band shearing device is characterized by comprising a mounting plate, a driving motor, an eccentric wheel, a connecting rod, a sliding rail and two shearing knives; the driving motor is arranged at the upper end of the mounting plate, and the eccentric wheel is arranged on a main shaft of the driving motor; the slide rail is connected to the mounting plate in a sliding manner, and the connecting rod is connected with the eccentric wheel and the slide rail; the two shearing knives are crossed, overlapped and rotationally connected, and at least one shearing knife is rotationally connected with the sliding rail; be provided with first squeeze bar and second squeeze bar on the mounting panel, the slide rail rises, first squeeze bar extrusion cut the sword, make two it is open state to cut the sword, the slide rail descends, the extrusion of second squeeze bar cuts the sword, makes two it is the state of cutting to cut the sword.

2. The ear band cutting device according to claim 1, wherein: the side of mounting panel still is provided with the guide holder, be equipped with the guide way on the guide holder, the slide rail with guide way sliding connection.

3. The ear band cutout device of claim 1, wherein: a connecting shaft sequentially penetrates through the two shearing knives to be connected with the sliding rail; the first extrusion rods are two in number and are oppositely arranged on the mounting plate, and the second extrusion rods are two in number and are oppositely arranged on two sides of the mounting plate; the sliding rail ascends, the two first extrusion rods outwards strut the upper ends of the two shearing knives, the sliding rail descends, and the two second extrusion rods extrude the outer sides of the upper ends of the two shearing knives.

4. The ear band cutout device of claim 3, wherein: four adjusting sliding grooves are oppositely formed in the mounting plate, and the first extrusion rods and the second extrusion rods are oppositely connected into the corresponding adjusting sliding grooves.

5. The ear band cutout device of claim 3 or 4, characterized in that: the outer end of connecting axle is provided with spacing portion, it is equipped with compression spring still to overlap on the connecting axle, compression spring extrusion is two the shearing sword is laminated each other.

6. The ear band cutting device according to claim 3 or 4, characterized in that: and the first extrusion rod and the second extrusion rod are respectively sleeved with a fixed bearing.

7. The ear band cutting device according to claim 3, wherein: the upper ends of the two shearing knives are also provided with a shifting rod, and the inner side of the shifting rod is provided with a shifting inclined plane and a guide plane which are used for being attached to the first extrusion rod; the outer side of the upper end of the shearing knife is also provided with an extrusion inclined plane, and the extrusion inclined plane and the outer side of the shearing knife are arranged in an obtuse angle.

8. The ear band cutting device according to claim 1, wherein: the upper end of the mounting plate is also provided with a proximity switch for sensing the position of the upper end of the connecting rod.