CN106032221A

CN106032221A - Preservative film cutting device capable of tooth-type tightening cutting

Info

Publication number: CN106032221A
Application number: CN201510114749.3A
Authority: CN
Inventors: 曹伟龙; 李琳
Original assignee: Shanghai Hongqu Electronic Technology Co Ltd
Current assignee: Shanghai Hongqu Electronic Technology Co Ltd
Priority date: 2015-03-16
Filing date: 2015-03-16
Publication date: 2016-10-19

Abstract

The invention provides a preservative film cutting device capable of tooth-type tightening cutting, and belongs to the technical field of daily necessities. Tightening force and shear force are generated when opposite cross sections of two tooth-type surfaces begin to cross, to achieve an objective of cutting a preservative film. The device comprises a box, a cover, a connecting piece, a cutting piece, a front tightening part, a rear tightening part, and a preservative film. The tooth-type surfaces of an upper cutter and a lower cutter are opposite. A front upper tightened tooth-type surface faces backward, and a front lower tightened tooth-type surface faces forward. The front upper tightening part is in front of the front lower tightening. A rear upper tightened tooth-type surface faces forward, and a rear lower tightened tooth-type surface faces backward. The rear upper tightening part is on the rear of the rear lower tightening part. The device is advantaged in that the arrangement of distance between the tooth-type surfaces has relatively large latitude, and since a teeth-cutter is contracted in the front tightening and the rear tightening part, a hand would not be hurt when the hand pulls the preservative film.

Description

A kind of flute profile tightens the preservative film shearing device of shearing

Technical field

The invention belongs to article of everyday use technical field, be specifically related to a kind of flute profile and tighten the preservative film shearing device of shearing.

Technical background

Preservative film Application comparison in daily life is extensive, it is mainly used in the cleaning of food and fresh-keeping, the common usage of preservative film is to get up to be placed in carton by freshness-retaining film roll now, from carton, preservative film is pulled out the when of use, again preservative film is placed on the tooth bar on carton and breaks by force, or cut off with shears, with disconnected use of lancinating.

Above-mentioned usage operates and there is following point: be inconvenient to use, and being broken on the tooth bar of carton by preservative film operates is not easy very much, and the plastic fresh-keeping membrane difficulty big especially for retractility is bigger；Be not durable, outsourcing carton be unable to undergo repeatedly turn from side to side can not reusable problem, carton be used only once about about 30 meters just discarded useless, be unfavorable for environmental protection and resources circulation；Additionally, exposed tooth top outside packaging also easily causes scuffing, and certain potential safety hazard be there is also for child.

Chinese patent CN96229952.9 before the present inventor, CN2005200474358, CN2005200478715, the design of the Wrapping case that band disclosed in CN200520006577X cuts off, its core technology be upper cover when, preservative film is fixed on cutter groove by the cutting apparatus that helps on cutter groove both sides, cutting knife enters cutter groove and is cut off by preservative film from top, problem is the structure helping cutting apparatus to be plane, fixing preservative film is dependent on arranging and helps the cooperation of cutting apparatus gap length just can complete fixing preservative film up and down, little gap can produce big bed knife, but need to spend big pressure that cutting knife just can be made to run downwards；Big gap has only to spend little pressure that cutting knife just can be made to run downwards, and the kind that problem is preservative film is various, have plenty of fragility, have plenty of toughness, have plenty of flexibility, unalterable gap can produce the problem that preservative film can not be fixed or preservative film can not cut off；Meanwhile, the making of product, use can make the fixing of gap variation effects preservative film and the cut-out of preservative film；How could easily fix and tighten preservative film and be turned off the problem that preservative film needs to solve.

Summary of the invention

The purpose of the present invention: for easily cutting off preservative film, it is provided that a kind of flute profile tightens the preservative film shearing device of shearing.

The thinking of the present invention: by observing and experiment finds: when the cross section that two Profile of AT are relative starts to intersect when, bed knife can be produced simultaneously, tighten power and shearing force, concrete bed knife, tighten power and shearing force depend mainly on the size of the spacing of Profile of AT, the height of tooth, space width, the angle of contact surface, suitably set and just can reach to tighten and cut off different effects.

Concrete idea is: arrange a fixing lower cut-out, one movable upper cut-out is set, the side cut off up and down is respectively arranged with the Profile of AT of a vertical configuration, and crown and the tooth root of the Profile of AT cut off up and down intersect, and the crown of upper cut-out is at the tooth root of lower cut-out；The bottom surface of upper cut-out is become crown less than the inclined-plane of tooth root, the end face of lower cut-out is become crown higher than tooth root inclined-plane, so, be the crown top that first touches lower cut-out the bottom of upper cut-out presses downward to when；As long as the Profile of AT cut off up and down be smaller than tooth depth, the shearing force that can produce the when of crosslinking on the bottom of upper cut-out and lower cut-out top be enough to cut off preservative film.

In order to make the preservative film cutting off both sides up and down be in the state tightened all the time, one flute profile tension mechanism is respectively set on the both sides cut off up and down, flute profile tension mechanism is made up of fixture and movable part, movable part and fixture are respectively arranged with a Profile of AT, and the Profile of AT of movable part is relative with the Profile of AT of fixture and keeps gap.

In order to ensure that, all the time along identical orbiting motion, the bottom of fixture, the bottom of lower cut-out are connected to the top of box, upper cut-out, the top of movable part are connected to the bottom of lid, and lid is used in the connector of a center of circle rotation and is connected with box.

The present invention uses following concrete technical scheme to realize the purpose of invention: a kind of flute profile tightens the preservative film shearing device of shearing, including lid, box, connector, blank, front tighten, after tighten and preservative film, wherein:

Described preservative film is placed in box, and the outlet of strip is arranged at the top of box, and the preservative film in box is stretched from exit；

Described covers above box；

Described connector include connection with under be connected, upper connection with under be connected on the same center of circle rotate, described under be fastened on the top of outlet box below, described on be fastened on the rear end of bottom of lid；

Described blank includes cut-out, lower cut-out, described upper cut-out, lower cut-out are elongated, length is more than the width of preservative film, it is Profile of AT that upper cut-out and lower cut-out are respectively arranged with a side, upper cut-out Profile of AT is relative with incision broken teeth profile, Profile of AT has the crown being arranged in order and the tooth root of vertical configuration, and the crown of described upper cut-out is positioned at the tooth root of lower cut-out；

The top of upper cut-out is fixed on the front of the bottom of lid, before the exit at the top that the bottom of lower cut-out is fixed on box；

Tighten elongated before described, length is more than the width of preservative film, before tighten include before on tighten, front lower tighten, tighten on before, front lower tighten that to be respectively arranged with a side be Profile of AT, Profile of AT is tightened backward on before, the front lower Profile of AT tightened is forward, the front lower front tightened it is tightened on before, Profile of AT has at the bottom of the tooth top and tooth being vertically arranged in order, the tooth top tightened on before described is positioned at the front lower tooth bottom tightened, front lower tightening is the top of the box that bottom is fixed on blank front, front on to tighten be the bottom of the lid that top is fixed on blank front；

Tighten elongated after described, length is more than the width of preservative film, after tighten include after on tighten, rear under tighten, tighten on Hou, rear under tighten that to be respectively arranged with a side be Profile of AT, Profile of AT is tightened forward on Hou, Profile of AT is tightened backward under Hou, the rear tightened under after being tightened on Hou, Profile of AT has at the bottom of the tooth top and tooth being vertically arranged in order, the tooth bottom that the tooth top tightened on after described is tightened under rear, tightening under Hou is the top of the box that bottom is fixed on blank rear, rear on to tighten be the bottom of the lid that top is fixed on blank rear.

Preferably, the crown of upper cut-out is not more than tooth depth with the spacing of incision broken teeth root.

Preferably, the tooth top tightened on front and the front lower spacing tightened at the bottom of tooth are not more than tooth depth；The tooth top tightened on Hou is tightened the spacing at the bottom of tooth and is not more than tooth depth under rear.

Preferably, the space width of upper cut-out Profile of AT and incision broken teeth profile is between 1 to 20 millimeters.

Preferably, front tighten, after the space width of Profile of AT tightened between 2 to 30 millimeters.

The invention have the advantage that preservative film can be cut off it is crucial that preservative film to be tauted just can be sheared disconnected, it is sheared while tightening, the present invention is that the relative cross section of two Profile of AT of application is when start to intersect, can produce the power of tightening and shearing force principle cut off preservative film, concrete power of tightening and shearing force be by Profile of AT between distance size determine.

The present invention arranges less Profile of AT spacing at the position playing shear action, arranges bigger Profile of AT spacing, so that blank can also move downward while preservative film is in the state tightened at the position of tightening of blank both sides.

Meanwhile, because not having serrated knife, being pulled outwardly preservative film when, user can be pulled outwardly out preservative film with hands relievedly, with the when of pulling preservative film, will not injure in one's hands.

Accompanying drawing explanation

Accompanying drawing 1 is the side profile schematic diagram that the preservative film cut-out appliance cover that the present invention provides opens up state.

Accompanying drawing 2 is the side profile schematic diagram that the preservative film that the present invention provides cuts off the downward closed mode of appliance cover.

Accompanying drawing 3 is the top cross-sectional view that the preservative film that the present invention provides cuts off the downward closed mode of appliance cover.

In figure:

(10): box, (11): the top of box, (12): outlet, (13): preservative film,

(20): lid, (21): the bottom of lid,

(30): connector, (31): upper connection, (32): lower connection, (33): the center of circle,

(40): blank, (41): upper cut-out, (42): above cut off Profile of AT, (43): lower cut-out, (44): incision broken teeth profile, (45): inclined-plane, (46): crown, (47): tooth root,

(50): front tighten, (51): tighten on front, (52): on front, tighten Profile of AT, (53): front lower tighten, (54): front lower tighten Profile of AT, (55): tooth top, (56): at the bottom of tooth, (57): tooth depth,

(60): after tighten, (61): tighten on Hou, (62): on Hou, tighten Profile of AT, (63): tighten under Hou, (64): under Hou, tighten Profile of AT.

Detailed description of the invention

For convenience of description, we define box be one can be with the rectangular object of folding, one end of size length to the other end is longitudinally, is longitudinally left and right directions, and one end that size is little is horizontal to the other end, is laterally fore-and-aft direction.

Simultaneously we assume that preservative film is to be rolled into tubular to put in box and replace, the exit that preservative film also is able to from box freely pulls out.

With reference to Fig. 1, Fig. 2, in Fig. 1: described box 10 is an openable housing, preservative film 13 is placed in box 10, and the outlet 12 of strip is arranged at the top 11 of box, and the preservative film 13 in box 10 is stretched at 12 from exporting.

Described connector 30 include connection 31 with under be connected 32, upper connection 31 with under be connected 32 on the same center of circle 33, upper connection 31 with under be connected 32 can be freely rotatable around this center of circle 33, described lower connection 32 is fixed on the top 11 of outlet 12 boxes below, described upper connection 31 is fixed on the rear end of the bottom 21 of lid, and connecting later lid 20 can open up with the center of circle 33 of connector 30 for rotating shaft at the top 11 of box and close downwards.

The rear end of described lid 20 is upturned.

The top of upper cut-out 41 is fixed on the front end of the bottom 21 of lid, and the bottom of described lower cut-out 43 is fixed on the top 11 of the box before outlet 12.

Tighten the bottom 21 that the top of 51 is fixed on the lid in cut-out 41 front on before, rear on tighten the bottom 21 that the top of 61 is fixed on the lid at cut-out 41 rear.

The front lower bottom tightening 53 is fixed on the top 11 of the box in lower cut-out front, rear under tighten the top 11 that the bottom of 63 is fixed on the box of the incision side of having no progeny.

The bottom of upper cut-out 41 is an inclined-plane 45, and namely the upper crown 46 cutting off 41 is less than tooth root 47；The top of lower cut-out 43 is an inclined-plane 45, and namely the lower crown 46 cutting off 43 is higher than tooth root 47.Actual shape be crown 46 be a wedge angle.Can the crown 46 of above cut-out 41 lower surface and the crown 46 of lower cut-out 43 upper surface be all wedge angle when of concrete operations, it is also possible to as long as a side is wedge angle.

Referring to the drawings 2, Fig. 1, accompanying drawing 2 is the side profile schematic diagram that the preservative film that the present invention provides cuts off the downward closed mode of appliance cover.

Lid 20 is closed downwards when, can be seen that upper cut-out 41 is inserted from above in lower cut-out 43 from the profile of side-looking, upper cut-out 41 is that Profile of AT relatively arranges with lower cut-out 43.

In figure, upper cut-out 41 is before lower cut-out 43, it is also possible to upper cut-out 41 is after lower cut-out 43.

Be arranged in before cut-out 41 and lower cut-out 43 be successively front lower tighten 53, front on tighten 51, be arranged in cut-out 41 and lower cut-out 43 below be successively after under tighten 63, rear on tighten 61.

Said structure represents: because lid 20 be with the center of circle 33 of rear end open up in fan-shaped and close, so, lid 20 opens up when, upper cut-out 41 can follow lid 20 upward out lower cut-outs 43, tighten 51 on before and upward out front lower can tighten 53, tighten 61 on Hou and upward out front lower can tighten 53, cover 20 close downwards when, they can follow directly after lid 20 and be returned to downwards original position.

Further indicate that: if preservative film 13 is placed on lower cut-out 43, front lower tighten 53, rear under tighten on the top of 63, cover 20 be pressed downward against when, preservative film 13 will be tauted and cut off by force.

Referring to the drawings 3, accompanying drawing 3 is the top cross-sectional view that the preservative film that the present invention provides cuts off the downward closed mode of appliance cover.

Described upper cut-out 41, lower cut-out 43, front tighten 50, after tighten the length of 60 width more than preservative film 13.

Upper cut-out 41, lower cut-out 43, front on tighten 51, front lower tighten 53, rear on tighten 61, rear under tighten 63 and be respectively arranged with the Profile of AT that side is triangular shape.

Profile of AT 52 is tightened backward on before described, front lower tighten Profile of AT 54 forward, 51 are tightened with front lower to tighten at the bottom of tooth top 55 tooth of 53 56 be cross one another on before described, tighten on before 51 front lower tighten 53 front, front on tighten the tooth top 55 of 51 and tighten the spacing of 56 at the bottom of the tooth of 53 be not more than tooth depth 57 with front lower.

Profile of AT 62 is tightened forward on after described；Tighten Profile of AT 64 under Hou backward, described after on tighten 61 with rear under to tighten at the bottom of tooth top 55 tooth of 63 56 be cross one another, rear on tighten 61 under rear, tighten the rear of 63, rear on tighten 61 tooth top 55 and rear under tighten the spacing of 56 at the bottom of the tooth of 63 and be not more than tooth depth 57.

From the profile overlooked can be seen that front lower tighten Profile of AT 54 with front to tighten Profile of AT 52 relative, afterwards under tighten Profile of AT 64 with rear on to tighten Profile of AT 62 relative, upper cut-out Profile of AT 42 is relative with incision broken teeth profile 44.

At the bottom of tooth top 55 and tooth, the spacing of 56 is not more than tooth depth 57.

With reference to Fig. 1, Fig. 2, Fig. 3, the process that preservative film 13 cuts off: lid 20 is closed downwards when, first tighten on before being 51 and rear on tighten 61 the bottom of tooth top 55 be the most respectively with front lower tighten 53 and rear under tighten the tip contact of 56 at the bottom of the tooth of 63, and be gradually inserted from top to down front lower tighten 53 and rear under tighten at the bottom of the tooth of 63 56 in, this time, because tightening 51 on front can be pullled downwards by preservative film 13, tighten 61 on Hou can be pullled downwards by preservative film 13, front lower tighten 53 and rear under tighten the preservative film 13 on 63 tops can be because be in the state tightened by pullling simultaneously；Close downwards in company with the continuation of lid 20, upper cut-out 41 start from front lower tighten 53 tops and rear tighten and between 63 tops, be inserted into lower cut-out 43, the preservative film 13 tightened is cut off by upper cut-out 41.

According to test, front tighten 50, after tighten the space width of Profile of AT of 60 between 1 to 30 millimeters, preservative film 13 can be tightened between 1 to 10 millimeters by tooth depth 57 effectively；Upper cut-out 41, lower cut-out 43 the space width of Profile of AT between 1 to 30 millimeters, preservative film 13 can be cut off between 1 to 10 millimeters by tooth depth 57 effectively.

Finally it is necessary described herein: above example is served only for being described in more detail technical scheme; it is not intended that limiting the scope of the invention, some nonessential improvement and the adjustment made according to the foregoing of the present invention belong to protection scope of the present invention.

Claims

1. flute profile tightens a preservative film shearing device for shearing, including lid (20), box (10), connector (30), blank (40), front tighten (50), after tighten (60) and preservative film (13), wherein:

Described preservative film (13) is placed in box (10), and the outlet (12) of strip is arranged at the top (11) of box, and the preservative film (13) in box (10) is stretched from outlet (12)；

Described lid (20) is in the top of box (10)；

Described connector (30) include connection (31) with under be connected (32), upper connection (31) with under be connected (32) and rotate the same center of circle (33) are upper, described lower connection (32) is fixed on the top (11) of outlet (12) box below, and described upper connection (31) is fixed on the rear end of the bottom (21) of lid；

Described blank (40) includes cut-out (41), lower cut-out (43), described upper cut-out (41), lower cut-out (43) are elongated, length is more than the width of preservative film (13), it is Profile of AT that upper cut-out (41) and lower cut-out (43) are respectively arranged with a side, upper cut-out Profile of AT (42) is relative with incision broken teeth profile (44), Profile of AT has the crown (46) being arranged in order and the tooth root (47) of vertical configuration, and the crown (46) of described upper cut-out (41) is positioned at tooth root (47) place of lower cut-out (43)；

The top of upper cut-out (41) is fixed on the front of the bottom (21) of lid, before outlet (12) place at the top (11) that the bottom of lower cut-out (43) is fixed on box；

nullTighten before described (50) elongated，Length is more than the width of preservative film (13)，Before tighten on before (50) include and tighten (51)、Front lower tighten (53)，(51) are tightened on before、It is front lower that tighten (53) to be respectively arranged with a side be Profile of AT，Profile of AT (52) is tightened backward on before，Front lower tighten Profile of AT (54) forward，(51) are tightened in the front lower front tightening (53) on before，Profile of AT has at the bottom of the tooth top (55) and tooth being vertically arranged in order (56)，The tooth top (55) tightening (51) on before described is positioned at (56) place at the bottom of the front lower tooth tightening (53)，Front lower tighten (53) are the tops (11) that bottom is fixed on the box in blank (40) front，Tightening (51) on before is the bottom (21) that top is fixed on the lid in blank (40) front；

nullTighten after described (60) elongated，Length is more than the width of preservative film (13)，After tighten on after (60) include and tighten (61)、Tighten (63) under Hou，(61) are tightened on Hou、Tightening (63) under Hou and being respectively arranged with a side is Profile of AT，Profile of AT (62) is tightened forward on Hou，Profile of AT (64) is tightened backward under Hou，Tighten (61) on Hou under rear, tighten the rear of (63)，Profile of AT has at the bottom of the tooth top (55) and tooth being vertically arranged in order (56)，Tighten the tooth top (55) of (61) on after described under rear, tighten (56) place at the bottom of the tooth of (63)，Tightening (63) under Hou is the top (11) that bottom is fixed on the box at blank (40) rear，Tightening (61) on Hou is the bottom (21) that top is fixed on the lid at blank (40) rear.

A kind of flute profile the most according to claim 1 tightens the preservative film shearing device of shearing, it is characterized in that: the spacing of the upper crown (46) and lower cut-out (43) tooth root (47) cutting off (41) is not more than tooth depth (57).

A kind of flute profile the most according to claim 1 tightens the preservative film shearing device of shearing, it is characterized in that: tightens the tooth top (55) of (51) on front and tightens the spacing of (56) at the bottom of (53) tooth be not more than tooth depth (57) with front lower；Tighten the tooth top (55) of (61) on Hou to tighten the spacing of (56) at the bottom of (63) tooth and be not more than tooth depth (57) under rear.

A kind of flute profile the most according to claim 1 tightens the preservative film shearing device of shearing, it is characterized in that: above cut off the space width of Profile of AT (42) and incision broken teeth profile (44) between 1 to 20 millimeters.

A kind of flute profile the most according to claim 1 tightens the preservative film shearing device of shearing, it is characterized in that: front tighten (50), after tighten the space width of Profile of AT of (60) between 2 to 30 millimeters.