CN201495387U - Automatic line breaking device for deposit book - Google Patents

Automatic line breaking device for deposit book Download PDF

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Publication number
CN201495387U
CN201495387U CN200920034430XU CN200920034430U CN201495387U CN 201495387 U CN201495387 U CN 201495387U CN 200920034430X U CN200920034430X U CN 200920034430XU CN 200920034430 U CN200920034430 U CN 200920034430U CN 201495387 U CN201495387 U CN 201495387U
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CN
China
Prior art keywords
blade
pressure wheel
bankbook
break wire
wheels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN200920034430XU
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Chinese (zh)
Inventor
王伟
李俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN XIZHENG PRINTING CO Ltd
Original Assignee
XI'AN XIZHENG PRINTING CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN200920034430XU priority Critical patent/CN201495387U/en
Application granted granted Critical
Publication of CN201495387U publication Critical patent/CN201495387U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an automatic line breaking device for a deposit book, and solves the problems that the prior manual line breaking mode has the disadvantages of low production efficiency and great labor intensity of workers, and the automatic line breaking device used with a full-automatic sewing machine cannot be suitable for manual sheet feeding. The automatic line breaking device comprises a line breaking device, a bracket, a front paper pressing wheel set, a rear paper pressing wheel set and a transmission device, wherein the bracket is fixed in front of a working platform of a sewing machine, the front and the rear paper pressing wheel sets are sequentially arranged on the bracket; the wheelbase of the front and the rear paper pressing wheel sets is L; and a blade out-extending opening is formed on the bracket and between the front and the rear paper pressing wheel sets. The automatic line breaking device has the advantage of high cutting rate.

Description

The automatic break wire device of bankbook
Technical field
The utility model relates to a kind of bankbook production process that is used for and cuts off the automatic break wire device that connects line between bankbook.
Background technology
In the bankbook production process, it is at bankbook folding place suture that one procedure is arranged.In the domestic present bankbook manufacturing enterprise; mainly be that high speed sewing machine is finished this operation by hand; and in actual production process; in order to enhance productivity; running suture normally; promptly have one section line to connect between the bankbook of two lines of sewing it up, Sewing machines is not shut down, and the bankbook that stitches out as shown in Figure 1.One and one of final bankbook product needed is separated, and promptly needs a line 4 that connects two bankbooks 9 is disconnected.In actual production, special also need a people to take blade or scissors 8 that more than at line 4 places are severed to cut off, so every manual high speed sewing machine needs two people, people's suture one people's secant, big, the manual secant speed of labour intensity is slowly like this, waste of manpower, production efficiency be not high yet.
It is to be applied on the full-automatic Sewing machines that moving break wire device is originated from existing Japan, because Sewing machines is from trend head supply bankbook, so the wire length between adjacent two bankbooks is constant, and the movement velocity of bankbook is constant, and convenient follow-up automatic break wire device breaks according to the speed identical with Sewing machines.But manual high speed sewing machine is to adopt artificial continuous paper, so the line between each bankbook is different in size, sometimes even can occur two bankbooks are sewn to together phenomenon.This automatic break wire device requires the wire length of two bankbooks relatively stable, so can't use on manual high speed sewing machine.
So need a kind of not only simply but also economical, and can with the automatic break wire device of the bankbook that manual high speed sewing machine is used.
The utility model content
The purpose of this utility model provides the automatic break wire device of a kind of bankbook, and it has solved the technical problem that existing artificial disconnection manner production efficiency is low, labor strength big and cooperate with full-automatic Sewing machines automatic break wire device can't adapt to hand feeding.
Technical solution of the present utility model is:
The automatic break wire device of a kind of bankbook, comprise break wire device, its special character is: its also be fixed on Sewing machines work platform the place ahead support, be successively set on the support and wheelbase is front paper pressing wheels and back platen wheels and the transmission device of L, described support is provided with the blade extending port, and described blade extending port is arranged on the centre of front paper pressing wheels and back platen wheels; Upper pressure wheel and preceding lower pressure wheel before described front paper pressing wheels comprise, described back platen wheels comprise back upper pressure wheel and back lower pressure wheel; First driving pulley that described transmission device comprises motor, be connected with motor coaxle, with the afterwards coaxial first passive belt wheel that is connected of lower pressure wheel and second driving pulley, with the coaxial second passive belt wheel that is connected of preceding lower pressure wheel, described first driving pulley is connected by first synchronous cog belt with the first passive belt wheel, and described second driving pulley is connected by second synchronous cog belt with the second passive belt wheel.
Above-mentioned break wire device is the rotary cut-off knife frame that is arranged on blade extending port place, described rotary cut-off knife frame comprise the central shaft vertical with bankbook suture direction, can around central shaft revolution and cross section be equilateral triangle knife rest, be separately fixed at three blades folders on three sides of triangle knife rest and three blades that clamped by three blades folders respectively; The all protruding knife rest of the blade of described three blades and and tool axis between angle be θ; The top of described blade folder is provided with the blade folder contact higher than blade; All stretching out blade extending port and blade and suture contact point when the blade of described arbitrary blade turns to the extreme higher position is H to the height of support work top.
The wheelbase L of above-mentioned front paper pressing wheels and back platen wheels is 160~180mm; The linear velocity of described preceding lower pressure wheel is 1.1~1.3 times of suture speed; The linear velocity of described back lower pressure wheel is 1.8~2.2 times of preceding lower pressure wheel linear velocity.
The wheelbase L of above-mentioned front paper pressing wheels and back platen wheels is 170mm; The linear velocity of described preceding lower pressure wheel is 1.2 times of suture speed; The linear velocity of described back lower pressure wheel is 2 times of preceding lower pressure wheel linear velocity.
The diameter of lower pressure wheel and back lower pressure wheel is 60mm before above-mentioned, and described synchronous cog belt banding pattern is the XL type, and its pitch is 5.08mm, the number of teeth of described first driving pulley is 18, the number of teeth of the first passive belt wheel is that the number of teeth of 24, the second driving pulleys is that the number of teeth of 12, the second passive belt wheels is 24.
When the blade of above-mentioned arbitrary blade turns to the extreme higher position and the suture contact point be 12~14mm to the height H of support work top.
When the blade of above-mentioned arbitrary blade turns to the extreme higher position and the suture contact point be 13mm to the height H of support work top.
The blade of above-mentioned three blades and the angle theta between the tool axis are 30~50 °.
The blade of above-mentioned three blades and the angle theta between the tool axis are 45 °.
Technique effect of the present utility model is:
1, the utility model adopts blade to cut off the disconnection manner of the line under the tight state, and the cut-out rate is about 99%.
2, the utility model adopts the passive rotation cutting movement of Purely mechanical, can continuous operation more than 10 hours, can satisfy in enormous quantities for a long time uninterruptedly production demand.
3, the utility model break wire device has been realized dynamo-electric the separation with manual high speed sewing machine, makes things convenient for maintenance, replacing, the resettlement in later stage.
4, the utility model be as long as gappedly between two bankbooks just can finish cut-out work smoothly, and the requirement of hand feeding has been reduced a lot, strengthened practicality.
5, the utility model adopt split-type structural type of attachment, realize the independence of unified control and mechanical action, so availablely decide the rotating speed motor and replace buncher, convenient adjusting.
6, application of the present utility model makes the Sewing machines operation be become by double compounding practice singlely independently to finish.
7, the utility model can be regulated tool holder height and pressure roller pressure size, can adapt to the bankbook of different sizes and thickness, applied range.
Description of drawings
Fig. 1 is the suture schematic diagram of bankbook folding place;
Fig. 2 is the structural representation of the automatic break wire device of the utility model;
Fig. 3 is the force analysis schematic diagram of the automatic break wire device of the utility model;
Fig. 4 is the rotation schematic diagram of the rotary cut-off knife frame of the automatic break wire device of the utility model;
Fig. 5 is the structural representation of the transmission device of the automatic break wire device of the utility model;
Fig. 6 is the structural representation of the rotary cut-off knife frame of the automatic break wire device of the utility model;
Reference numeral is as follows: 1-central shaft, 2-fixed screw, 3-blade, the 4-line, 5-rotary cut-off knife frame, 6-blade folder, 7-blade folder contact, 8-scissors, 9-bankbook, the 10-sewing machine table, 11-head of sewing machine, 12-Sewing needles, the 13-motor, upper pressure wheel behind the 15-, lower pressure wheel behind the 16-, 17-first synchronous cog belt, 18-support, 19-second synchronous cog belt, lower pressure wheel before the upper pressure wheel before the 20-blade extending port, 21-, 22-, 31-first driving pulley, the 32-first passive belt wheel, 33-second driving pulley, the 34-second passive belt wheel, F-tightens power, the T-cutting force.
The specific embodiment
The automatic break wire device of the utility model bankbook comprises break wire device, be fixed on the support in Sewing machines work platform the place ahead, be successively set on the support and wheelbase L is front paper pressing wheels and back platen wheels and the transmission device of 160~180mm, support is provided with the blade extending port, and the blade extending port is arranged on the centre of front paper pressing wheels and back platen wheels; Upper pressure wheel and preceding lower pressure wheel before the front paper pressing wheels comprise, back platen wheels comprise back upper pressure wheel and back lower pressure wheel; First driving pulley that transmission device comprises motor, be connected with motor coaxle, with the afterwards coaxial first passive belt wheel that is connected of lower pressure wheel and second driving pulley, with the coaxial second passive belt wheel that is connected of preceding lower pressure wheel, first driving pulley is connected by first synchronous cog belt with the first passive belt wheel, and second driving pulley is connected by second synchronous cog belt with the second passive belt wheel; Break wire device is the rotary cut-off knife frame that is arranged on blade extending port place, the rotary cut-off knife frame comprise the central shaft vertical with bankbook suture direction, can around central shaft revolution and cross section be equilateral triangle knife rest, be separately fixed at three blades folders on three sides of triangle knife rest and three blades that clamped by three blades folders respectively; The all protruding knife rest of the blade of three blades and and tool axis between angle theta be 30~50 °, preferable angle theta is 45 °; The top of blade folder is provided with the blade folder contact higher than blade; All stretching out blade extending port and blade and suture contact point when the blade of arbitrary blade turns to the extreme higher position is H to the height of support work top.The linear velocity of preceding lower pressure wheel is 1.1~1.3 times of suture speed, generally gets 1.2 times; The linear velocity of back lower pressure wheel is 1.8~2.2 times of preceding lower pressure wheel linear velocity, generally gets 2 times.
The utility model operation principle:
In order to realize reliably cutting off effectively line, guarantee product quality simultaneously, automatically break wire device must satisfy three primary conditions: 1, in order to cut off line is reliable and stable, line must have certain power of tightening in the time of the blade secant; 2, in order to ensure the suture quality, the power F of tightening is less than the pull-off force of line, guarantees that just line cuts off rather than breaks, and simultaneously, under the condition of guaranteeing to cut off, the power of tightening is the smaller the better.3, as shown in Figure 3, Figure 4, for carrying out smoothly of guaranteeing to cut, knife rest will rise from certain height, and simultaneously, tool holder height is too high can to influence the smooth and easy of paper feed again, therefore will obtain the optimized tool holder height.
Above-mentioned the 1st primary condition (tightening of line) is to realize by the speed discrepancy of preceding lower pressure wheel and back lower pressure wheel, motor provides power by synchronous cog belt for front paper pressing wheels and back platen wheels as shown in Figure 5, variation by pulley diameters simultaneously makes pinch roller generation certain speed in front and back poor, thereby has realized tightening of line.Wheelbase according to selected front paper pressing wheels of test effect and back platen wheels is 170mm, it is 10.2m/min that test records normal suture speed, the front paper pressing wheels are mainly made rolling movement (bankbook of sewing it up is connect surely) with respect to paper, the rotating speed of therefore preceding lower pressure wheel is a bit larger tham suture speed and gets final product, and the normal line speed of pinch roller is 12m/min before determining according to suture speed; The effect of back lower pressure wheel is line to be tightened so that cut, therefore the linear velocity of back lower pressure wheel should be much larger than suture speed, make back platen wheels mainly do relative slip (force of sliding friction is much larger than force of rolling friction) with respect to paper, the linear velocity of determining the back pinch roller according to above-mentioned condition is 24m/min, selecting the lower pressure wheel diameter for use is 60mm, the band banding pattern is XL type (pitch is 5.08mm) synchronously, and then the number of teeth of the second passive belt wheel is selected 24 teeth for use, according to drive connection and the V of Fig. 4 2=2V 1The number of teeth that can draw second driving pulley is 12 teeth, and the number of teeth of the first passive belt wheel is also selected 24 teeth for use, and the number of teeth of first driving pulley is selected 18 teeth for use.
The stressing conditions that the bankbook line is cut off moment as shown in Figure 3.Bankbook line breakpoint is subjected to the effect of three power, i.e. the opposite equal-sized power of tightening F of direction and cutting force T, and there is following relation in the three:
T = 2 F H H 2 + ( L 2 ) 2
In the formula, blade and line contact point were to the distance of support work top when H was blade cut-out line, and L is the wheelbase of front paper pressing wheels and back platen wheels.The power F of tightening can think equal the back pinch roller force of sliding friction (force of rolling friction of preceding pinch roller is ignored), recording the power of the tightening scope that guarantees the suture quality by experiment is 0≤F≤2N, the threshold tensile force that suture is broken is 11.7N, considers simultaneously according to experimental result that the suture quality is got and tightens power F=1.1N.Equally, record optimum Cutting power T=0.33N according to experiment, according to following formula can try to achieve blade when turning to the extreme higher position and the suture contact point be 12~14mm to the scope of the height H of support work top, optimum height is 13mm.
During work, the front paper pressing wheels drive the line bankbook by rolling friction and advance, and back platen wheels advance by sliding friction drive line bankbook and the power of tightening is provided.Two adjacent blade folder contacts on the rotary cut-off knife frame are pushed down the back by bankbook and are rubbed with the bankbook lower surface, corresponding blade folder contact is decontroled near a side of preceding lower pressure wheel until bankbook, then blade folder contact stretches out the blade extending port, and the driven rotary cut-off rest rotates around central shaft.Because blade stretches out the blade extending port, so blade contacts with line, and tightening the effect incision disconnection line of power, thereby the bankbook in back promotes blade folder contact and promotes rotary cut-off knife frame continuation rotation, below this blade folder contact and next blade folder contact being pressed in this bankbook, the cutting-off process that begins next existence.From said process as can be known, blade folder contact provides and the corresponding to velocity of rotation of bankbook movement velocity to the rotary cut-off knife frame under the frictional force of bankbook and pressure effect, thereby can adapt to the situation that the bankbook wire length of manual high speed sewing machine differs.

Claims (9)

1. automatic break wire device of bankbook, comprise break wire device, it is characterized in that: its also be fixed on Sewing machines work platform the place ahead support, be successively set on the support and wheelbase is front paper pressing wheels and back platen wheels and the transmission device of L, described support is provided with the blade extending port, and described blade extending port is arranged on the centre of front paper pressing wheels and back platen wheels; Upper pressure wheel and preceding lower pressure wheel before described front paper pressing wheels comprise, described back platen wheels comprise back upper pressure wheel and back lower pressure wheel; First driving pulley that described transmission device comprises motor, be connected with motor coaxle, with the afterwards coaxial first passive belt wheel that is connected of lower pressure wheel and second driving pulley, with the coaxial second passive belt wheel that is connected of preceding lower pressure wheel, described first driving pulley is connected by first synchronous cog belt with the first passive belt wheel, and described second driving pulley is connected by second synchronous cog belt with the second passive belt wheel.
2. the automatic break wire device of bankbook according to claim 1, it is characterized in that: described break wire device is the rotary cut-off knife frame that is arranged on blade extending port place, described rotary cut-off knife frame comprise the central shaft vertical with bankbook suture direction, can around central shaft revolution and cross section be equilateral triangle knife rest, be separately fixed at three blades folders on three sides of triangle knife rest and three blades that clamped by three blades folders respectively; The all protruding knife rest of the blade of described three blades and and tool axis between angle be θ; The top of described blade folder is provided with the blade folder contact higher than blade; All stretching out blade extending port and blade and suture contact point when the blade of described arbitrary blade turns to the extreme higher position is H to the height of support work top.
3. the automatic break wire device of bankbook according to claim 1 and 2 is characterized in that: the wheelbase L of described front paper pressing wheels and back platen wheels is 160~180mm; The linear velocity of described preceding lower pressure wheel is 1.1~1.3 times of suture speed; The linear velocity of described back lower pressure wheel is 1.8~2.2 times of preceding lower pressure wheel linear velocity.
4. the automatic break wire device of bankbook according to claim 3 is characterized in that: the wheelbase L of described front paper pressing wheels and back platen wheels is 170mm; The linear velocity of described preceding lower pressure wheel is 1.2 times of suture speed; The linear velocity of described back lower pressure wheel is 2 times of preceding lower pressure wheel linear velocity.
5. the automatic break wire device of bankbook according to claim 3, it is characterized in that: the diameter of lower pressure wheel and back lower pressure wheel is 60mm before described, described synchronous cog belt banding pattern is the XL type, its pitch is 5.08mm, the number of teeth of described first driving pulley is 18, the number of teeth of the first passive belt wheel is that the number of teeth of 24, the second driving pulleys is that the number of teeth of 12, the second passive belt wheels is 24.
6. the automatic break wire device of bankbook according to claim 3 is characterized in that: when the blade of described arbitrary blade turns to the extreme higher position and the suture contact point be 12~14mm to the height H of support work top.
7. the automatic break wire device of bankbook according to claim 6 is characterized in that: when the blade of described arbitrary blade turns to the extreme higher position and the suture contact point be 13mm to the height H of support work top.
8. the automatic break wire device of bankbook according to claim 3 is characterized in that: the blade of described three blades and the angle theta between the tool axis are 30~50 °.
9. the automatic break wire device of bankbook according to claim 8 is characterized in that: the blade of described three blades and the angle theta between the tool axis are 45 °.
CN200920034430XU 2009-09-02 2009-09-02 Automatic line breaking device for deposit book Expired - Lifetime CN201495387U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920034430XU CN201495387U (en) 2009-09-02 2009-09-02 Automatic line breaking device for deposit book

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Application Number Priority Date Filing Date Title
CN200920034430XU CN201495387U (en) 2009-09-02 2009-09-02 Automatic line breaking device for deposit book

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Publication Number Publication Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102002827B (en) * 2009-09-02 2012-12-05 西安西正印制有限公司 Automatic line breaking device for deposit books
CN107709648A (en) * 2015-05-08 2018-02-16 大和缝纫机制造株式会社 The thread cutter of double-thread overlock sewing machine
CN110318175A (en) * 2019-06-29 2019-10-11 沛县谦和纺织有限公司 A kind of clamp cutter device of cotton sewing thread

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102002827B (en) * 2009-09-02 2012-12-05 西安西正印制有限公司 Automatic line breaking device for deposit books
CN107709648A (en) * 2015-05-08 2018-02-16 大和缝纫机制造株式会社 The thread cutter of double-thread overlock sewing machine
CN107709648B (en) * 2015-05-08 2020-02-28 大和缝纫机制造株式会社 Thread cutting device of double-thread lockstitch sewing machine
CN110318175A (en) * 2019-06-29 2019-10-11 沛县谦和纺织有限公司 A kind of clamp cutter device of cotton sewing thread

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Granted publication date: 20100602

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