CN115359711A - Real standard platform of cellophane cutter adjustment teaching - Google Patents
Real standard platform of cellophane cutter adjustment teaching Download PDFInfo
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- CN115359711A CN115359711A CN202211042266.3A CN202211042266A CN115359711A CN 115359711 A CN115359711 A CN 115359711A CN 202211042266 A CN202211042266 A CN 202211042266A CN 115359711 A CN115359711 A CN 115359711A
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- 229920000298 Cellophane Polymers 0.000 title claims description 55
- 238000012549 training Methods 0.000 claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012423 maintenance Methods 0.000 abstract description 13
- 239000000123 paper Substances 0.000 description 146
- 238000004806 packaging method and process Methods 0.000 description 10
- 235000019504 cigarettes Nutrition 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
- B65B19/02—Packaging cigarettes
- B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
- B65B19/228—Preparing and feeding blanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
- B65H35/0073—Details
- B65H35/008—Arrangements or adaptations of cutting devices
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Unwinding Webs (AREA)
Abstract
The invention discloses a transparent paper cutter adjustment teaching training platform which comprises a table, wherein a support frame is arranged on the table, and a transparent paper frame device, a transparent paper unreeling device and a transparent paper cutter assembly are arranged on the support frame; the transparent paper cutter component comprises a traction roller, a fixed cutter which is arranged on the cutter holder and can be adjusted in the horizontal direction and a movable cutter which is fixedly arranged on the rotating shaft; the transparent paper unreeling device is used for stably conveying transparent paper; the transparent paper is output from the transparent paper frame device under the traction of the traction roller, sequentially passes through the transparent paper unreeling device and the traction roller, and is finally cut into transparent paper with fixed length by the rotating movable knife. The transparent paper cutter adjustment teaching training platform disclosed by the invention enables maintenance personnel to perform installation, maintenance and training of the cutter at any time, so that the operating skill is rapidly improved, the cutter adjustment standardization level and the adjustment quality are improved, the adjustment time is shortened, and the cutter replacement frequency is reduced.
Description
Technical Field
The invention relates to the technical field of cigarette equipment, in particular to a transparent paper cutter adjustment teaching training platform.
Background
Under the tobacco monopoly system, the production capacity of each cigarette production enterprise is limited by the production scale and the type of the factory, cigarette production equipment is configured by the national tobacco monopoly according to the production scale of each factory, standby equipment is not configured in the factories with the production scale of 30 ten thousand boxes or less, and the cigarette equipment is in a full-load operation state for a long time. Normally, no standby equipment is provided for maintenance personnel to learn maintenance technology to improve maintenance skills, and the adjustment quality of the YB55 transparent paper cutter directly influences the stability of packaging equipment and the reliability of product quality. According to statistics, the adjustment of the transparent paper cutter at one time at present needs 78 minutes on average; because the quality of cutter installation and debugging is not high, the cutter edge mouth wearing and tearing are very fast, and the frequency of changing of single equipment cutter is 2.5 months/time, and this brings great influence to equipment operating efficiency and production task smooth completion.
The YB55 small packet cellophane paper packaging machine consists of a cigarette packet input part, a wire pulling supply part, a cellophane paper supply part, a packaging forming part, a heat sealing part, a cigarette packet output part and the like. The transparent paper supply part comprises a transparent paper support, a transparent paper conveying and cutting device and the like. In the transparent paper packaging process, the transparent paper on the transparent paper support is conveyed downwards by the transparent paper conveying device, and the transparent paper is cut into fixed lengths by the cutting device and then is sent to a packaging position in front of the packaging forming wheel. The axes of the fixed knife and the movable knife mounting shaft of the cutting device are staggered by 3 degrees, and the movable knife and the fixed knife form point-by-point cutting from inside to outside when rotating and cut into single transparent paper. The thickness of a single piece of transparent paper is 18-22 mu m, and the installation and adjustment of the cutter are important for ensuring the cutting quality and the service life of the cutter; if the distance between the cutters is too small, the resistance between the cutters is large, the abrasion of the cutting edge is too fast, and the service life is reduced; the cutter is worn to cause poor cutting of the transparent paper, so that the conveying is inclined or not in place, and the quality defect of the cigarette packet is generated, so that the quality of the replacement and adjustment of the cutter is directly influenced by the skill level of a maintenance worker. Aiming at the problem, no effective method exists in other factories in the same industry at present, and the only method for improving the cutter adjustment quality and the adjustment efficiency is as follows: the exercise is continued. However, the existing cutting device is installed on a transparent paper packaging machine, and can only be used for training during the production stop period of the equipment, so that the training time is limited, and the skill is slowly improved.
The quality and the efficiency of cutter adjustment are improved, continuous practice and long-time experience accumulation are needed, and therefore, a transparent paper cutter adjustment practical training platform needs to be developed and designed to solve the problem.
Disclosure of Invention
The invention provides a teaching training platform for adjusting a transparent paper cutter, which aims to solve the problems in the prior art.
The technical scheme adopted by the invention is as follows: the utility model provides a transparent paper cutter adjustment teaching training platform which comprises a platform table, wherein a support frame is arranged on the platform table, and a transparent paper rack device, a transparent paper unreeling device and a transparent paper cutter assembly are arranged on the support frame; the transparent paper cutter component comprises a traction roller, a fixed cutter which is arranged on the cutter holder and can be adjusted in the horizontal direction and a movable cutter which is fixedly arranged on the rotating shaft; the transparent paper unreeling device is used for stably conveying transparent paper; the transparent paper is output from the transparent paper frame device under the traction of the traction roller, sequentially passes through the transparent paper unreeling device and the traction roller, and is finally cut into transparent paper with fixed length by the rotating movable knife.
Further, the cellophane paper frame device includes the cellophane back shaft of installing on the support frame through the cellophane support, rotate on the cellophane back shaft and install two mount pads, the cellophane roll sets up on two mount pads, the mount pad is fixed a position through the location retaining ring, still installs the brake disc on one of them mount pad.
Furthermore, the transparent paper unreeling device comprises an adjusting rod support, a first tension spring pin shaft and a brake arm support shaft, wherein the adjusting rod support is arranged on the support frame; an adjusting rod is arranged on the adjusting rod support, an adjusting nut is fixed at one end of the adjusting rod, and the other end of the adjusting rod is connected with one end of the braking belt through an L-shaped connecting piece; the paper guide device is characterized in that a brake arm is rotatably mounted on the brake arm supporting shaft, the brake arm is V-shaped, one end of the brake arm is connected with the other end of the brake belt, a paper guide roller shaft is mounted at the other end of the brake arm, and a second paper guide roller is rotatably mounted on the paper guide roller shaft; and a second tension spring pin shaft is further installed at one end, close to the brake belt, of the brake arm, and a tension spring is arranged between the first tension spring pin shaft and the second tension spring pin shaft.
Furthermore, one end of the brake arm, which is connected with the brake belt, is an execution arm, one end of the paper guide roller shaft is a control arm, an included angle of 120 degrees is formed between the execution arm and the control arm, and the length ratio is 1:2.
Furthermore, the support frame is provided with a mounting groove, the end part of the plate-shaped adjusting rod support is positioned in the mounting groove, and the adjusting rod support is fixed on the support frame through a screw.
Further, the table has the following dimensions: a length of 1500 mm, a width of 750 mm and a height of 800 mm; the operation space size of cutter adjustment does: 347mm in length, 465mm in width and 229.5mm in height; the height of the axle center of the rotating shaft from the ground is 980mm.
Further, the support frame is installed in one side of table desktop, and whole table desktop includes in proper order that real standard operation district, spare part place the district and the worker's measuring tool places the district.
Furthermore, the device also comprises a timer which is arranged at the top end of the support frame.
The beneficial effects of the invention are: the transparent paper cutter adjustment teaching training platform disclosed by the invention enables maintenance personnel to perform installation, maintenance and training of the cutter at any time, so that the operating skill is rapidly improved, the cutter adjustment standardization level and the adjustment quality are improved, the adjustment time is shortened, and the cutter replacement frequency is reduced.
Drawings
FIG. 1 is a schematic view of a prior art cellophane cutter assembly shown open;
FIG. 2 is a schematic view of a prior art cellophane cutter assembly in a closed configuration;
FIG. 3 is a schematic view showing the cutting states of the movable knife and the stationary knife in the cellophane cutter assembly;
FIG. 4 is a schematic structural view of a teaching training platform for adjusting a transparent paper cutter disclosed by the invention;
FIG. 5 is a schematic view of the assembly of the cellophane cutter assembly with the support frame of the present disclosure;
FIG. 6 is a schematic structural view of a transparent paper frame device according to the present invention;
FIG. 7 is a half sectional view of a cellophane holder assembly as disclosed herein;
FIG. 8 is a schematic structural view of a positioning retainer ring disclosed in the present invention;
FIG. 9 is a schematic structural diagram of a transparent paper unwinding device disclosed in the present invention;
fig. 10 is an exploded view of the transparent paper unwinding device disclosed by the present invention;
fig. 11 is a working principle diagram of the transparent paper unwinding device disclosed by the invention.
Reference numerals are as follows: 1-cellophane cutter assembly, 101-fixed knife, 102-rotating shaft, 103-movable knife, 104-first locking screw, 105-second locking screw, 106-adjusting screw, 107-traction roller, 108-first paper guide roller, 2-table, 201-training operation area, 202-parts placement area, 203-tooling fixture placement area, 3-support frame, 301-installation groove, 4-cellophane holder device, 401-cellophane support shaft, 402-installation seat, 403-installation seat bearing, 404-positioning retainer, 405-cellophane roll, 406-brake disc, 407-cellophane support frame, 5-cellophane unwinding device, 501-brake band, 502-first tension spring pin, 503-adjustment rod support, 504-adjustment nut, 505-adjustment rod, 506-tension spring, 507-brake arm support shaft, 508-second paper guide roller, 509-paper guide roller, 510-brake arm, 511-second tension spring, 512-L-type connector, pin-needle roller bearing, 513-deep groove ball bearing, 6-timer score indicator, 7-8-transparent paper guide roller shaft, and 509-transparent paper guide roller shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, but embodiments of the present invention are not limited thereto.
Example 1:
the embodiment discloses a teaching and training platform for adjusting a transparent paper cutter, wherein the transparent paper cutter takes a YB55 small box transparent paper cutter as an example.
The noun interpretation:
1. YB55 small box transparent paper packaging machine
The YB55 small box transparent paper packaging machine is a downstream machine of a ZB25/ZB45 packaging unit, and has the function of wrapping fixed-length transparent paper with a pasting pull wire on a small box cigarette packet, so that the small box is more exquisite, and the functions of moisture prevention and cigarette quality maintenance are achieved.
2. YB55 small box transparent paper cutter
The cutting of the YB55 small box transparent paper is finished by two cutters, wherein one cutter is arranged on a rotating shaft and rotates along with the shaft to be called as a moving cutter, and the other cutter is arranged on a cutter holder to be called as a fixed cutter; the movable knife can not be adjusted after being assembled on the rotating shaft, so the movable knife is also called as an unadjustable knife; the locking screws of the fixed cutter and the cutter holder are loosened, and the fixed cutter can move left and right by utilizing the adjusting screws, so that the fixed cutter is also called as an adjustable cutter. The two cutters cut the transparent paper from inside to outside, and the movable cutter rotates for one circle to complete the fixed-length cutting of one piece of transparent paper.
Specifically, referring to fig. 1-3, the movable blade 103 is mounted on the rotating shaft 102 by three second locking screws 105; the first locking screw 104 is loosened, the fixed knife 101 can be moved rightwards through the adjusting screw until the fixed knife is tangent to the movable knife 103 point by point, and the cutting torque is less than 2Nm under the condition of good cutting quality of the transparent paper.
The technical difficulty of the cutter device adjustment lies in that: (1) The axes of the rotating shafts 102 of the fixed cutter 101 and the movable cutter 103 are staggered by 3 degrees, and the movable cutter 103 needs to be rotated repeatedly during adjustment to check the cutting tracks of the two cutters; (2) The fixed knife 101 is provided with 4 adjusting screws 106 for adjustment, 4 first locking screws 104 for fixation, the difficulty of the inside and outside point-by-point cutting adjustment is high, the experience requirement is extremely high, the adjusting bolts are adjusted carelessly, rework and readjustment are needed, and the risk that the distance is too small and the cutters are damaged due to mutual collision can be caused in serious cases, so that the adjustment is time-consuming; (3) The service life of the cutter is inversely related to the cutting torque of the cutter, the smaller the cutting torque is, the longer the service life of the cutter is, the smaller the cutting torque is required to be in adjustment, the better the cutting torque is, and the adjustment difficulty is improved; (4) No standby equipment is provided for maintenance personnel to practice YB55 transparent paper cutter adjustment, the maintenance personnel lack practical exercise opportunities, and the adjustment experience is short.
YB45/YB25 aluminum foil cutting knife component and YB95 transparent paper cutting knife component in the ZB45/ZB25 packaging unit are similar to YB55 transparent paper cutting knife component in structure, and are completely consistent in cutting principle, basically the same in installation and adjustment method, and the same problems and difficulties are faced in ordinary work. Therefore, the installation and adjustment of other two cutters can be easily realized by only mastering the adjustment method of the YB55 transparent paper cutter.
In order to solve the technical problem, the embodiment provides a real standard platform of cellophane cutter adjustment teaching to make the maintenance personal can install maintenance operation and training at any time, improve operating skill rapidly, promote the standardized level of cutter adjustment and adjustment quality, shorten the adjustment consuming time, reduce the cutter and change the frequency.
Referring to fig. 4, the teaching training platform for adjusting the transparent paper cutter disclosed in this embodiment includes a table 2, a support frame 3 is installed on the table 2, and a transparent paper rack device 4, a transparent paper unreeling device 5 and a transparent paper cutter assembly 1 are installed on the support frame 3; the transparent paper cutter component 1 comprises a traction roller 107, a fixed cutter 101 which is arranged on a cutter seat and can be adjusted in the horizontal direction, and a movable cutter 103 which is fixedly arranged on a rotating shaft 102; the transparent paper unreeling device 5 is used for stably conveying transparent paper; the transparent paper is output from the transparent paper frame device 4 under the traction of the traction roller 107, passes through the transparent paper unreeling device 5 and the traction roller 107 in sequence, and is finally cut into transparent paper with fixed length by the rotating movable knife 103.
Specifically, for guaranteeing that the real standard platform of teaching of this embodiment is unanimous with former YB55 cellophane cutters, choose YB55 capsule cellophane packagine machine's cellophane cutter subassembly 1 as the main part of real standard platform adjustment exercise for use, guarantee the authenticity and the uniformity of instructing.
Specifically, the teaching training platform is used as a training main body and needs to simulate the same operation space and operation position as real equipment to achieve the training effect consistent with that of the original machine. The specific position of the transparent paper cutter component 1 on the original YB55 machine body is used as an object for measurement, and the size of the operation space (namely the practical training operation area) for cutter adjustment is determined as follows: 347mm in length, 465mm in width and 229.5mm in height; determining that the height position of the practical training platform based on the axis of the rotating shaft 102 of the movable knife 103 is 980mm; the width (depth) position of the practical training platform based on the mounting surface of the transparent paper cutter component 1 is determined to be 456mm.
After having determined the above dimensions, the table 2 is designed as follows: the table 2 has the following dimensions: the length is 1500 mm, the width is 750 mm, and the height is 800 mm. The table is adhered to the table top by a 3 mm high-polymer composite rubber, the 2 panel of the table is made of a high-fiber board, the periphery of the panel is a 5mm high-strength plastic covered edge, and the table frame is of a detachable steel frame design structure and has bearing capacity and stability. The table legs are made of forged disc anti-oxidation foot pads, are resistant to heavy load and adjustable in height of 3cm, and the shaking phenomenon caused by uneven ground is avoided.
Further, the table 2 is provided with a training operation area 201, a component placing area 202 and an engineering and measuring tool placing area 203 according to the requirement of training practice, and the table 2 can also be provided with a timer 6, an adjustment operation instruction book, a judgment standard and an optimal result display area. Wherein, real standard operation area 201 size is: 347mm by 465mm by 229.5mm. The dimension of the component placement region 202 is 550 mm long by 450 mm wide, and the dimension of the tool placement region 203 is 580 mm by 580 mm.
Specifically, the timer 6 is composed of a timer display, a display support, a wire, a control button and the like, and is used for supervising and urging a trainer to grasp time and recording the time for training and competition. The timer 6 is mounted on the support frame 3 through a display bracket.
Specifically, the support frame 3 is a key part of the practical training platform, and the transparent paper cutter assembly 1, the transparent paper frame device 4 and the transparent paper unwinding device 5 are fixed with the desktop through the support frame 3. The design is as follows: (1) selecting a 45# steel plate with the thickness of 8 mm as a processing material for the support frame 3; (2) In order to strengthen the strength of the support frame 3, 2 reinforcing ribs with the length of 115mm and the thickness of 20mm are designed on the support frame 3 to improve the strength of the support frame 3; (3) The support frame 3 is arranged on the tabletop of the table 2 through 8 bolts with the diameter of M8 multiplied by 60 mm; (4) The transparent paper cutter component 1 is fixed on the support frame 3 through 7 bolts (see figure 5) with the diameter of 8 mm and 40mm, and the support frame 3 is provided with a U-shaped opening so that the mounting surface of the transparent paper cutter component 1 is attached to the support frame 3 and is consistent with the mounting mode of the transparent paper cutter component 1 on the original equipment; (5) The right upper part of the support frame 3 is provided with 4 screw holes for mounting holes in the middles of 4,4 screw holes of the transparent paper frame device for mounting a first tension spring pin shaft 502 in the transparent paper unwinding device 5; (6) The support frame 3 is also provided with a mounting position of a transparent paper roll 405 brake band 501 and a mounting position of a transparent paper brake arm 510.
Referring to fig. 6-7, the cellophane holder device 4 includes a cellophane support shaft 401 mounted on the support frame 3 through a cellophane bracket 407, two mounting seats 402 are rotatably mounted on the cellophane support shaft 401 through mounting seat bearings 403, a cellophane roll 405 is disposed on the two mounting seats 402, the mounting seats 402 are positioned through positioning retaining rings 404, and a brake disc 406 is further mounted on one of the mounting seats 402. In another embodiment, the transparency support shaft 401 may be directly mounted on the supporting frame 3.
In particular, the cellophane paper holder device 4 mainly functions to mount and position the cellophane paper roll. The transparent paper support 407 is connected with the support frame 3 through 4M 8X 25mm screws, the transparent paper support shaft 401 is installed on the transparent paper support 407 through a fastening nut, the transparent paper inner and outer installation seats are respectively assembled on the transparent paper support shaft 401 through 2 6004 deep groove ball bearings 514, the installation seats are axially positioned by means of the positioning retaining rings 404, and the transparent paper roll 405 is installed between the inner installation seat and the outer installation seat.
Specifically, cellophane support 407 adopts 45# steel to make, and its design point is as cellophane roll 405 part and real connecting piece of instructing platform support frame 3: a. the maximum outer diameter of the transparent paper roll 405 is 350mm, the transparent paper roll cannot interfere with the unreeling device, the timer 6 and the cutter assembly after being installed, and meanwhile, on the premise of no interference, the size of the transparent paper frame device 4 exceeding the table 2 needs to be controlled within 150mm so as to reduce the occupied area of the practical training table space and improve the safety of practice operation, so that the positioning size of the shaft assembling hole of the transparent paper support 407 on the paper frame is designed to be 100mm multiplied by 35mm; b. the connection part of the transparent paper bracket 407 and the support frame 3 adopts an embedded design, and the installation strength of the transparent paper bracket device 4 is improved under the assistance of 4M 8 multiplied by 25mm screws through two positioning surfaces.
Specifically, the transparency support shaft 401 is made of 45# steel, and is coupled to the transparency holder 407 by a nut of M10, and functions to support the transparency roll 405. The design key points are as follows: cellophane support shaft 401 adopts the shaft shoulder location, and the straightness that hangs down of guarantee cellophane support shaft 401 and cellophane support 407 accords with the cellophane and unreels the requirement, and when carry over pinch rolls 107 pulling cellophane in cellophane cutter unit 1, the cellophane can evenly expand and the not loose limit phenomenon of appearance.
Specifically, the mounting base 402 is divided into an inner mounting base and an outer mounting base, and the outer shape, size and structure of the inner and outer mounting bases are identical. The design key points are as follows: a. two deep groove ball bearings 514 of 6004 are assembled in the mounting seat and can rotate freely by taking the transparent paper supporting shaft 401 as a center, and the transparent paper supporting shaft 401 and the 6004 bearings are in clearance fit so that the mounting seat 402 can move axially along the transparent paper supporting shaft 401; b. the mounting seat is made of an aluminum alloy material, and the mounting seat is lower in quality than other common metal materials on the premise of guaranteeing functions, so that the bending moment applied to the transparent paper support shaft 401 can be reduced; c. the transparent paper is arranged between the inner and outer mounting seats, and the positioning of the transparent paper on the transparent paper supporting shaft 401 is realized through the mounting seats; d. the outer end face of the mounting seat is uniformly provided with 4M 6 threaded holes, and the threaded holes of the inner mounting seat are used for mounting the brake disc 406.
Referring to fig. 8, the two positioning retaining rings 404 are made of 45# steel and are respectively used for axially positioning the inner and outer mounting seats on the transparent paper supporting shaft 401. The design key points are as follows: a. the positioning retainer ring 404 is used for positioning the mounting seat by limiting the 6004 bearing, so that a boss with the outer diameter of 25mm and the height of 1mm is arranged on the end face of the positioning retainer ring 404, and the boss limits the bearing inner ring on the premise of not influencing the free rotation of the bearing outer ring and the mounting seat; b. the outer cylindrical surface of the positioning retainer ring 404 is provided with an M5 radial threaded hole, and the positioning retainer ring 404 and the transparent paper support shaft 401 are locked through a locking screw; c. the axial position of the mounting seat is adjusted through the positioning retainer ring 404, so that the center of the transparent paper roll 405 is aligned with the center of the first paper guide roll 108 of the transparent paper cutter assembly 1, and the transparent paper is positioned at the center of the cutter and is convenient to cut; d. after the transparent paper roll 405 is axially positioned, the axial position of the inner side mounting seat is fixed immediately and is not changed any more, when the transparent paper roll 405 is used up and needs to be replaced, the locking screws of the outer side positioning retaining ring 404 are loosened, the retaining ring and the outer side mounting seat are axially removed, the transparent paper roll 405 can be replaced, and the newly-installed paper roll is axially and accurately positioned by the inner side mounting seat.
Referring to fig. 9 to 10, the cellophane unreeling device 5 includes an adjusting lever support 503, a first tension spring pin shaft 502 and a brake arm support shaft 507 which are mounted on the support frame 3, and a brake band 501 is disposed on the brake disc 406; an adjusting rod 505 is arranged on the adjusting rod support 503, an adjusting nut 504 is fixed at one end of the adjusting rod 505, and the other end of the adjusting rod 505 is connected with one end of the brake band 501 through an L-shaped connecting piece 512; a braking arm 510 is rotatably mounted on the braking arm supporting shaft 507, the braking arm 510 is in a V shape, one end of the braking arm 510 is connected with the other end of the braking belt 501, a paper guide roller shaft 509 is mounted at the other end of the braking arm 510, and a second paper guide roller 508 is rotatably mounted on the paper guide roller shaft 509; a second tension spring pin 511 is further mounted at one end of the brake arm 510 close to the brake band 501, and a tension spring 506 is arranged between the first tension spring pin 502 and the second tension spring pin 511.
The cellophane is launched by carry over pinch rolls 107 pulling in cellophane cutter unit 1, and cellophane unwinding device 5's effect is the rotational speed of control scroll under the different unwrapping speed of carry over pinch rolls 107, makes carry over pinch rolls 107 and scroll unwrapping linear velocity keep unanimous, avoids the scroll rotational speed to launch too fast and appears the paper tape slack too much or the scroll rotational speed is too slow to launch and appears the phenomenon that the paper tape breaks down too little. The transparent paper unwinding device 5 provides guarantee for continuous and stable paper adjustment of the practical training table cutter.
Specifically, the braking band 501 is made of a nylon sheet base band (which may be made of cowhide) commonly used in a workshop, and has an outer shape size of 605mm × 20mm. The brake belt 501 wraps the outer cylindrical surface of the brake disc 406, the wrapping angle between the belt and the belt wheel is 239.50, and the unwinding speed of the transparent paper roll 405 is controlled through the brake disc 406. One end of the brake band 501 is connected with the brake arm 510 through two screws with the diameter of M5 mm by 10mm, and the other end is connected with the adjusting rod 505 through one screw with the diameter of M5 mm by 10 mm; the purpose of using an adjusting nut 504 to connect the adjusting rod 505 is to adjust the degree of the combination of the braking band 501 and the wrapping portion of the brake disc 406 by loosening the adjusting nut 504, so that the combination is tight and the braking effectiveness is ensured.
Specifically, the adjusting rod support 503 is assembled in the mounting groove 301 of the support frame 3 through a locking screw of M8 × 25mm, and the inclined mounting groove 301 realizes the positioning of the adjusting rod support 503. An adjusting rod 505 is mounted in a mounting hole on the adjusting rod support 503, and rotating the adjusting nut 504 of M8 enables the adjusting rod 505 to move axially, and the axial movement of the adjusting rod 505 can change the braking force of the braking band 501 on the brake disc 406. In order to realize the linear motion of the adjusting rod 505 when the adjusting nut 504 rotates, a guide groove with the width of 4mm, the depth of 1.5mm and the length equal to the length of the screw rod is designed at the screw rod part of the adjusting rod 505, an M3 screw hole is designed right above the guide groove corresponding to the assembly hole of the adjusting rod support 503, and an M3 multiplied by 12 screw enters the guide groove of the adjusting rod 505 through the screw hole, so that the structure limits the circumferential motion of the adjusting rod 505. When adjustment is required, the M3 screw is only slightly loosened and the adjusting nut 504 is rotated.
Specifically, the brake arm 510 is made of 45# steel, and the support shaft is assembled on the support bracket 3 through the brake arm 510. 2 4900 needle roller bearings 513 are arranged in parallel in a middle positioning hole of the brake arm 510, so that reciprocating swing is realized by taking a supporting shaft of the brake arm 510 as a center; 4900 the needle bearing 513 is axially positioned by the retaining ring at the location where the brake arm 510 supports the shaft shoulder and the shaft head. The brake arm 510 can be regarded as a lever with a middle positioning hole as a fulcrum, one end of the brake belt 501 is connected as an execution arm, one end of the paper guide roller is installed as a control arm, an included angle of 120 degrees is formed between the execution arm and the control arm, and the length ratio of the execution arm to the control arm is 1:2. The tension spring is an important part for applying the braking force to the brake disc 406 by the brake belt 501, and the tension spring 506 with the diameter of 2mm, the middle diameter of 14mm and the free length of 68.5mm is selected as a control tension spring of the practical training platform unwinding device through reference comparison and calculation; one end of the second tension spring pin 511 is connected with the brake arm 510, the other end of the second tension spring pin 502 is mounted on the support frame 3, when the second paper guide roller 508 loses upward power, the tension spring 506 contracts, and one end of the execution arm on the brake arm 510 is controlled to swing upward to tension the brake belt 501, so that the unreeling speed of the paper roll is reduced. A paper guide roller shaft 509 is arranged at one end of a control arm on the brake arm 510, and the two are connected through a nut M8; the second paper guide roller 508 is made of an aluminum alloy material, two ends of an inner hole in the center of the roller are respectively provided with a deep groove ball bearing 514 of 6001, and the second paper guide roller 508 can freely rotate by taking a paper guide roller shaft 509 as the center through the 6001 bearing; the 6001 bearing is axially positioned by the shoulder of the paper guide roller 509 and the retainer ring at the shaft head.
Referring to fig. 11, the operation principle of the transparent paper unwinding device 5 is as follows:
a. the transparent paper roll 405 is integrally installed with the brake disc 406 through the installation seat, the pulling force of the transparent paper 8 is from the traction roller 107 in the transparent paper cutter assembly 1, and the nylon sheet base band as the brake band 501 has a good friction coefficient with the brake disc 406 made of aluminum alloy.
b. When the traction roller 107 stops, the brake band 501 tightly wraps the brake disc 406 under the action of the adjusting rod 505 and the tension spring, and the wrap angle between the brake band 501 and the brake disc 406 reaches 239.5 degrees, so that the brake disc 406 and the transparent paper roll 405 are in a stationary state. The magnitude of the braking force can be achieved by changing the axial position of the adjustment rod 505 by rotating the adjustment nut 504.
c. The braking principle of the braking belt 501 is realized by compensation of the tension spring 506 according to the fact that the sum of two sides of the triangle is larger than the third side. When the pulling roll 107 rotates, the transparent paper 8 is pulled to be conveyed downwards, and at the same time, the paper guide roll on the brake arm 510 swings upwards against the tension of the tension spring due to the action of the transparent paper, and the brake belt 501 gradually releases the braking force on the brake disc 406, so that the transparent paper is gradually unfolded from the paper roll. When the unfolding speed of the transparent paper from the paper roll is greater than the conveying speed of the traction roller 107, the upward swinging acting force applied by the transparent paper to the second paper guide roller 508 is gradually reduced, at the moment, the second paper guide roller 508 swings downwards under the action of the tension spring, meanwhile, the braking force applied to the brake disc 406 by the transparent paper is gradually enhanced by the braking belt 501, the rotating speeds of the brake disc 406 and the paper roll are reduced, the unfolding speed of the transparent paper is reduced accordingly until the unfolding speed is matched with the downward pulling speed of the traction roller 107, stable conveying of the transparent paper is achieved, and guarantee is provided for normal work of a practical training platform.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A teaching and training platform for adjusting a transparent paper cutter is characterized by comprising a platform table, wherein a support frame is arranged on the platform table, and a transparent paper frame device, a transparent paper unreeling device and a transparent paper cutter assembly are arranged on the support frame; the transparent paper cutter component comprises a traction roller, a fixed cutter which is arranged on the cutter holder and can be adjusted in the horizontal direction and a movable cutter which is fixedly arranged on the rotating shaft; the transparent paper unreeling device is used for stably conveying transparent paper; the transparent paper is output from the transparent paper frame device under the traction of the traction roller, sequentially passes through the transparent paper unreeling device and the traction roller, and is finally cut into transparent paper with fixed length by the rotating movable knife.
2. The real standard platform of cellophane cutter adjustment teaching of claim 1, characterized in that, cellophane paper frame device includes the cellophane back shaft of installing on the support frame through the cellophane support, rotate on the cellophane back shaft and install two mount pads, and the cellophane scroll sets up on two mount pads, the mount pad is fixed a position through the location retaining ring, still installs the brake disc on one of them mount pad.
3. The real standard platform of cellophane cutter adjustment teaching of claim 2, wherein the cellophane unreeling device comprises an adjusting lever support, a first tension spring pin shaft and a brake arm support shaft which are arranged on the support frame, and a brake belt is arranged on the brake disc; an adjusting rod is arranged on the adjusting rod support, an adjusting nut is fixed at one end of the adjusting rod, and the other end of the adjusting rod is connected with one end of the braking belt through an L-shaped connecting piece; the paper guide device is characterized in that a brake arm is rotatably mounted on the brake arm supporting shaft, the brake arm is V-shaped, one end of the brake arm is connected with the other end of the brake belt, a paper guide roller shaft is mounted at the other end of the brake arm, and a second paper guide roller is rotatably mounted on the paper guide roller shaft; and a second tension spring pin shaft is further installed at one end, close to the brake belt, of the brake arm, and a tension spring is arranged between the first tension spring pin shaft and the second tension spring pin shaft.
4. The transparent paper cutter adjustment teaching training platform as claimed in claim 3, wherein one end of the brake arm connected with the brake band is an execution arm, one end of the paper guide roller shaft is a control arm, an included angle of 120 degrees is formed between the execution arm and the control arm, and the length ratio is 1:2.
5. The real standard platform of cellophane cutter adjustment teaching of claim 3, wherein the support frame is provided with an installation groove, the end of the plate-shaped adjusting rod support is positioned in the installation groove, and the adjusting rod support is fixed on the support frame through screws.
6. The real standard platform of cellophane cutter adjustment teaching of claim 1, characterized in that, the bench table size is: a length of 1500 mm, a width of 750 mm and a height of 800 mm; the operation space size of cutter adjustment does: 347mm in length, 465mm in width and 229.5mm in height; the height of the axis center of the rotating shaft from the ground is 980mm.
7. The transparent paper cutter adjustment teaching practical training platform as claimed in claim 6, wherein the support frame is mounted on one side of a table top, and the whole table top sequentially comprises a practical training operation area, a part placing area and an engineering and measuring tool placing area.
8. The real standard platform of cellophane cutter adjustment teaching of claim 1, further includes the timer, installs at the support frame top.
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| GB285121A (en) * | 1926-11-08 | 1928-02-08 | Walter Everett Molins | Improvements in or relating to packing cigarettes and like articles |
| WO2001060730A2 (en) * | 2000-02-19 | 2001-08-23 | Industrial Automation Systems Ltd | Packaging process and apparatus for its execution |
| WO2005105583A1 (en) * | 2004-04-27 | 2005-11-10 | Focke & Co. (Gmbh & Co. Kg) | Device for the production of cigarette packets |
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| CN115359711B (en) | 2024-04-16 |
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