CN212599260U - Built-in nose bridge strip cutter mechanism suitable for KN95 gauze mask - Google Patents

Abstract

The utility model relates to the technical field of mask processing equipment, in particular to a built-in nose bridge cutter mechanism suitable for a KN95 mask, which comprises a nose bridge upper guide block, an upper cutter, a positioning plate, a lower cutter and a nose bridge lower guide block, wherein the nose bridge upper guide block and the nose bridge lower guide block are correspondingly connected; the upper cutter and the lower cutter are correspondingly arranged between the positioning plate and the nose bridge strip upper guide block and between the positioning plate and the nose bridge strip lower guide block, and the upper cutter is matched with the lower cutter in a rotating manner to cut a nose bridge strip bus; a first nose bridge strip pushing groove is transversely formed in the center of the positioning plate, an upper cutter nose bridge strip channel is formed in the upper cutter corresponding to the first nose bridge strip pushing groove, and a second nose bridge strip pushing groove is formed between an upper nose bridge strip guide block and a lower nose bridge strip guide block; one end of the lower cutter is provided with a nose bridge strip leading-in port for the nose bridge strip bus to enter. The utility model relates to a rationally novel, compact structure, degree of automation is high, and is good at shearing in-process stability, to the shearing efficiency and the shearing quality of bridge of the nose strip.

Description

Built-in nose bridge strip cutter mechanism suitable for KN95 gauze mask

Technical Field

The utility model relates to a gauze mask processing equipment field, concretely relates to be applicable to built-in bridge of the nose strip cutter mechanism of KN95 gauze mask.

Background

The mask is a sanitary article, is generally worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to achieve the purpose of preventing harmful gas, smell or spray from entering and exiting the mouth and nose of a wearer, is made of materials such as gauze or paper, has a certain filtering effect on the air entering the lung, and has a very good effect when the mask is worn during operation in an environment polluted by respiratory infectious diseases or dust and the like. Along with the development of science and technology, the mechanical level is improved, the automation level of mask production is higher and higher, the mask production flow is simplified more and more, and a mask production system comes along. The existing mask is mainly divided into a KN95 mask and a conventional disposable medical shell mask, and no matter which type of mask needs to be provided with a nose bridge strip on a mask surface layer to realize sealing and fixing of the nose bridge of the face. Present KN95 gauze mask bridge of the nose strip is at the cutting in-process, and the cutter probably has the dislocation problem about the interlock in-process from top to bottom, and it is not good to lead to bridge of the nose strip cutter stability, and it is not good to cut the effect, and then leads to bridge of the nose strip to carry unsmoothly, and the elbow appears after bridge of the nose strip is cuted easily, cuts back bridge of the nose strip unevenness scheduling problem, greatly increased the disqualification rate of KN95 gauze mask, and be unfavorable for improving KN95 gauze mask production efficiency.

Disclosure of Invention

In order to overcome the defects and deficiencies in the prior art, the utility model provides a built-in nose bridge strip cutter mechanism for KN95 mask. The purpose of the utility model is realized through the following technical scheme:

a nose bridge strip cutter mechanism suitable for a KN95 mask is built-in, and comprises a nose bridge strip upper guide block, an upper cutter, a positioning plate, a lower cutter and a nose bridge strip lower guide block, wherein the nose bridge strip upper guide block and the nose bridge strip lower guide block which are arranged on one side of the positioning plate are fixedly connected in a vertically corresponding mode; the upper cutter and the lower cutter are correspondingly arranged in a through groove formed between the positioning plate and the nose bridge strip upper guide block and between the positioning plate and the nose bridge strip lower guide block, the upper cutter can be matched with the lower cutter in a rotating mode along a cutter rotating shaft at one end of the upper cutter to cut a nose bridge strip bus, and a return spring is arranged between the far rotating ends of the upper cutter and the lower cutter; a first nose bridge strip pushing groove is transversely formed in the center of the positioning plate, an upper cutter nose bridge strip channel is formed in the position, corresponding to the first nose bridge strip pushing groove, of the upper cutter plate surface, and a second nose bridge strip pushing groove for the nose bridge strip to pass through is formed between the contact surfaces of an upper nose bridge strip guide block and a lower nose bridge strip guide block; and a nose bridge strip leading-in opening for a nose bridge strip bus to enter is formed in a plate body at one end of the lower cutter, and corresponds to the opening end of a nose bridge strip channel of the upper cutter.

Preferably, the upper cutter comprises an upper cutter block, one end of the upper cutter block is rotatably connected to the positioning plate through a cutter rotating shaft, the other end of the upper cutter block protrudes upwards to form an upper cutter pressing block, and an upper cutter edge is formed at one side of the upper cutter block corresponding to the entrance of the nose bridge strip channel of the upper cutter.

Preferably, the lower cutter is L-shaped, and a cutter lower edge is arranged at the L-shaped bent part of the lower cutter corresponding to the nose bridge strip introducing port and matched with the cutter upper edge.

Preferably, a plurality of fixing and positioning holes for fixing and connecting are formed in the L-shaped plate body of the lower cutter.

The utility model discloses compare and gain following technological effect in prior art:

1. the utility model has reasonable and novel design and high automation degree, the upper and lower cutters are in a clamped state, and the stability of the upper and lower cutters is greatly improved in the shearing process, thereby ensuring the shearing efficiency and the shearing quality of the nose bridge strip;

2. the cutter tool is compact in structure and good in matching performance, and the service life of the cutter tool is greatly prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic structural view of a cutting state of a nose bridge strip cutter tool according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a nose bridge strip cutter tool in a push-out state according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a cutter mechanism according to an embodiment of the present invention;

fig. 4 is a schematic view of the internal structure of the cutter mechanism according to the embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a cutter mechanism according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of an upper cutter in accordance with an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a lower cutter according to an embodiment of the present invention.

Reference numerals:

100-cutter tool, 110-cutter mechanism, 111-nose bridge upper guide block, 112-upper cutter, 1121-upper cutter block, 1122-upper cutter nose bridge channel, 1123-upper cutter press block, 113-hexagon socket screw, 114-first nose bridge push groove, 115-positioning plate, 116-lower cutter, 117-nose bridge leading-in port, 118-nose bridge lower guide block, 119-return spring, 1110-fixing positioning hole, 1111-cutter rotating shaft, 1112-cutter upper cutter edge, 1113-cutter lower cutter edge, 120-push cutter unit, 121-driving disc, 122-first connecting piece, 123-push rod, 124-second connecting piece, 125-push cutter support, 126-push cutter, 130-driving unit, 131-driving chain wheel and 132-fixing bearing, 133-a pressing block support, 134-a pressing block connecting rod, 135-a pressing block, 140-a nose bridge strip bus and 150-a nose bridge strip monomer.

Detailed Description

In order to make those skilled in the art better understand the solution of the embodiments of the present invention, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings and the implementation manner.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used only for convenience of describing the present application and for simplicity of description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example (b): referring to fig. 1-5, a built-in nose bridge strip cutter mechanism for a KN95 mask, the cutter tool 100 includes a cutter mechanism 110, a push-type broach unit 120, a driving unit 130 and a nose bridge strip bus 140; the cutter mechanism 110 comprises a nose bridge upper guide block 111, an upper cutter 112, a positioning plate 115, a lower cutter 116 and a nose bridge lower guide block 118, and the nose bridge upper guide block 111 and the nose bridge lower guide block 118 which are arranged on one side of the positioning plate 115 are vertically and correspondingly fixedly connected; the upper cutter 112 and the lower cutter 116 are correspondingly arranged in a through groove formed between the positioning plate 115 and the nose bridge strip upper guide block 111 and the nose bridge strip lower guide block 118, the upper cutter 112 can be in running fit with the lower cutter 116 along one end cutter rotating shaft 1111 of the upper cutter to cut the nose bridge strip bus 140, and a return spring 119 is arranged between the far rotating ends of the upper cutter 112 and the lower cutter 116; when the nose bridge support device works, the upper cutter 112 is pressed downwards under stress, the nose bridge busbar 140 is cut by matching with the lower cutter 116 to form a nose bridge single body 150 with a fixed length, and the length of the nose bridge single body 150 is equal to or slightly smaller than that of a nose bridge channel 1122 of the upper cutter; the return spring 119 is operative to provide an upward return action of the upper cutter 112 after the upper cutter 112 has completed the push-down cutting action.

In this embodiment, a first nose bridge pushing groove 114 is transversely formed in the center of the positioning plate 115, an upper cutter nose bridge channel 1122 is formed on the plate surface of the upper cutter 112 corresponding to the first nose bridge pushing groove 114, and a second nose bridge pushing groove for the nose bridge to pass through is formed between the contact surfaces of the nose bridge upper guide block 111 and the nose bridge lower guide block 118, wherein the second nose bridge pushing groove is not visible in the drawing; the first nose bridge bar pushing slot 114, the second nose bridge bar pushing slot and the upper cutter nose bridge bar channel 1122 have the same width and are in the same horizontal plane. A nose bridge strip lead-in opening 117 for a nose bridge strip bus 140 to enter is formed in a plate body at one end of the lower cutter 116, the nose bridge strip lead-in opening 117 corresponds to the open end of an upper cutter nose bridge strip channel 1122, the nose bridge strip bus 140 is conveyed to the nose bridge strip lead-in opening 117 through a conveying roller of the nose bridge strip bus and enters the upper cutter nose bridge strip channel 1122, at the moment, the upper cutter 112 is pressed downwards to cut the nose bridge strip bus 140 to form a nose bridge strip single body 150, the nose bridge strip single body 150 is consistent in length in the cutting mode, stability is good in the cutting process, the problem that the nose bridge strip single body 150 is curled cannot occur, and the nose bridge strip single body 150 can be efficiently and accurately conveyed to a preset station through the matching of the nose bridge; a push broach unit 120 is arranged at one side corresponding to the first nose bridge strip push groove 114, and can push the cut nose bridge strip single body 150 out from the upper cutter nose bridge strip channel 1122 to the second nose bridge strip push groove; the driving unit 110 is disposed at one end of the upper cutter 112 and can periodically act on the upper cutter 112 to complete the cutting operation.

Referring to fig. 4-6, the upper blade 112 includes an upper blade block 1121, one end of which is rotatably connected to the positioning plate 115 through a blade rotating shaft 1111, and the other end of which protrudes upward to form an upper blade pressing block 1123, and a blade upper blade 1112 is formed at an inlet of one side of the upper blade block 1121 corresponding to the upper blade nose bridge channel 1122; in operation, the driving unit 130 disposed on the upper cutter 112 can periodically operate to press the upper cutter pressing block 1123, so as to periodically press the upper cutter 112 to perform a cutting operation, and referring to fig. 5-6, the driving unit 130 acts on the upper cutter 112P to perform a pressing operation.

Referring to fig. 5, the lower cutter 116 is L-shaped, a cutter lower blade 1113 is arranged at the L-shaped bent portion of the lower cutter 116 corresponding to the nose bridge strip introduction port 117 and the cutter upper blade 1112, and the nose bridge strip bus 140 can be cut by the cooperation of the cutter upper blade 1112 and the cutter lower blade 1113.

Referring to fig. 1 to 5, a plurality of fixing holes 1110 for fixing and connecting are formed in the L-shaped plate of the lower cutter 116, and each component of the cutter mechanism 110 is fixed by an inner hexagon screw 113.

Referring to fig. 1, the push broach unit 120 includes a driving disc 121, a first connecting piece 122 is hinged to an outer circumference of a face of the driving disc 121, the first connecting piece 122 is connected to a second connecting piece 124 through a push rod 123, a far end of the second connecting piece 124 is hinged to a middle portion of a push broach bracket 125, and a push broach 126 is fixedly disposed on the push broach bracket 125 corresponding to a first nose bridge push groove 114; the driving disc 121 is fixedly connected to a first driving motor, which is a conventionally arranged driving motor and is not shown in the drawing; in operation, the driving disc 121 rotates along with the rotation of the first driving motor, so as to drive the first connecting member 122, the push rod 123 and the second connecting member 124 to reciprocate back and forth periodically, thereby driving the push-broach support 125 and the push-broach 126 thereon to move back and forth periodically or back. Referring to fig. 1, the push broach unit 120 and the cutter mechanism 110 are in a separated state, at this time, the nose bridge busbar 140 is being cut, after the cutting is completed, the push broach unit 120 can enter a push-out state shown in fig. 2, at this time, the push broach 126 is arranged corresponding to the first nose bridge pushing groove 114, the push broach 126 can advance to enter the first nose bridge pushing groove 114 to push the cut nose bridge monomer 150 out of the upper cutter nose bridge channel 1122 and enter the second nose bridge pushing groove, and along with the continuous advance of the push broach 126, the nose bridge monomer 150 is pushed out of the second nose bridge pushing groove to enter the KN95 mouth mask layer and is fixed.

Referring to fig. 1-2, the driving unit 130 includes a fixed bearing 132 and a transmission shaft disposed therein, a driving sprocket 131 fixedly disposed at one end of the transmission shaft, and a pressing block bracket 133 fixedly coupled at the other end of the transmission shaft; a pressing block connecting rod 134 and a pressing block 135 at the end part thereof are fixedly arranged on the pressing block bracket 133 and are vertical to the axial direction of the transmission shaft; the drive sprocket 131 is linked by a drive chain to a second drive motor, not visible in the figures, which is a conventionally provided drive motor. The second driving motor and the driving chain drive the driving chain wheel 131 to rotate, the pressing block connecting rod 134 and the pressing block 135 at the front end thereof can be arranged in an eccentric state by adjusting the working radius of the pressing block connecting rod in the pressing block bracket 133, so that the pressing block 135 is ensured to periodically act on the pressing block 1123 of the upper cutter, and the upper cutter 112 is pushed to move downwards to perform a cutting action.

It should be noted that, in this embodiment, the push-type broach unit 120 and the driving unit 130 need to work cooperatively, and should not interfere with each other, that is, when the push-type broach unit 120 is in the forward-moving and pushing state, the driving unit 120 is in the non-downward-pressing state, and this working state can be achieved by adjusting the rotation speed and time interval of the first driving motor and the second driving motor.

The above embodiment is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.

Claims (4)

1. The utility model provides a be applicable to built-in bridge of nose strip cutter mechanism of KN95 gauze mask which characterized in that: the cutter mechanism (110) comprises a nose bridge upper guide block (111), an upper cutter (112), a positioning plate (115), a lower cutter (116) and a nose bridge lower guide block (118), and the nose bridge upper guide block (111) and the nose bridge lower guide block (118) which are arranged on one side of the positioning plate (115) are vertically and correspondingly fixedly connected; the upper cutter (112) and the lower cutter (116) are correspondingly arranged between the positioning plate (115) and the nose bridge strip upper guide block (111) and the nose bridge strip lower guide block (118) to form a through groove, the upper cutter (112) can be in rotating fit with the lower cutter (116) along a cutter rotating shaft (1111) at one end of the upper cutter to cut a nose bridge strip bus (140), and a return spring (119) is arranged between the upper cutter (112) and the lower cutter (116) far away from the rotating end; a first nose bridge strip pushing groove (114) is transversely formed in the center of the positioning plate (115), an upper cutter nose bridge strip channel (1122) is formed in the position, corresponding to the first nose bridge strip pushing groove (114), of the upper cutter (112) on the plate surface, and a second nose bridge strip pushing groove for a nose bridge strip to pass through is formed between the contact surfaces of the nose bridge strip upper guide block (111) and the nose bridge strip lower guide block (118); a nose bridge strip introducing port (117) for a nose bridge strip bus (140) to enter is formed in a plate body at one end of the lower cutter (116), and the nose bridge strip introducing port (117) corresponds to the opening end of the upper cutter nose bridge strip channel (1122).

2. The built-in nose bridge cutter mechanism for KN95 facial masks according to claim 1, wherein: the upper cutter (112) comprises an upper cutter block (1121), one end of the upper cutter block is rotatably connected to the positioning plate (115) through a cutter rotating shaft (1111), the other end of the upper cutter block protrudes upwards to form an upper cutter pressing block (1123), and a cutter upper cutter edge (1112) is formed at one side of the upper cutter block (1121) corresponding to the inlet of the upper cutter nose bridge strip channel (1122).

3. The built-in nose bridge strip cutter mechanism for the KN95 mask according to claim 2, wherein: the lower cutter (116) is L-shaped, and a cutter lower edge (1113) is arranged at the L-shaped bent part of the lower cutter (116) corresponding to the nose bridge strip introducing port (117) and matched with the cutter upper edge (1112).

4. The built-in nose bridge strip cutter mechanism for the KN95 mask according to claim 3, wherein: a plurality of fixing and positioning holes (1110) for fixing and connecting are arranged on the L-shaped plate body of the lower cutter (116).

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