CN115359711B - Real standard platform of cellophane cutter adjustment teaching - Google Patents
Real standard platform of cellophane cutter adjustment teaching Download PDFInfo
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- CN115359711B CN115359711B CN202211042266.3A CN202211042266A CN115359711B CN 115359711 B CN115359711 B CN 115359711B CN 202211042266 A CN202211042266 A CN 202211042266A CN 115359711 B CN115359711 B CN 115359711B
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- 229920000298 Cellophane Polymers 0.000 title claims description 30
- 238000012549 training Methods 0.000 claims abstract description 41
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 12
- 238000005520 cutting process Methods 0.000 description 23
- 238000004806 packaging method and process Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 235000019504 cigarettes Nutrition 0.000 description 6
- 241000208125 Nicotiana Species 0.000 description 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000002775 capsule Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 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
- 239000002131 composite material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining 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
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
-
- 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)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Unwinding Webs (AREA)
Abstract
The invention discloses a transparent paper cutter adjustment teaching and practical 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 assembly 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 finally is cut into transparent paper with fixed length by the rotary movable knife. According to the transparent paper cutter adjustment teaching and practical training platform disclosed by the invention, maintenance personnel can perform installation, maintenance and training of the cutter at any time, so that the operation skill is rapidly improved, the cutter adjustment standardization level and adjustment quality are improved, the adjustment time consumption 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 and practical 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 factories, the national tobacco monopoly configures cigarette production equipment according to the production scale of each factory, the production scale is 30 ten thousand boxes or less, no spare equipment is configured in the factories, and the cigarette equipment is in a full-load running state for a long time. No spare equipment is usually used 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. The statistics shows that 78 minutes are required for finishing the adjustment of the transparent paper cutter at present; because the cutter installation and debugging quality is not high, the cutter edge abrasion is faster, and the replacement frequency of a single equipment cutter is 2.5 months/time, so that the equipment operation efficiency and the production task are smoothly finished, and the great influence is brought.
The YB55 small-packet transparent paper packaging machine consists of a tobacco packet input part, a pull wire supply part, a transparent paper supply part, a packaging forming part, a heat sealing part, a tobacco packet output part and the like. The transparent paper feeding part comprises a transparent paper bracket, a transparent paper conveying and cutting device and the like. In the transparent paper packaging process, the transparent paper conveying device conveys the transparent paper on the transparent paper support downwards, and the cutting device cuts the transparent paper into fixed lengths and then sends the fixed lengths to a packaging position in front of a packaging forming wheel. The axes of the fixed knife and the movable knife installation shaft of the cutting device are staggered at 3 degrees, and when the movable knife rotates, the fixed knife and the movable knife form point-by-point shearing from inside to outside, so that a single piece of transparent paper is cut. The thickness of the single transparent paper is 18-22 mu m, and the installation and adjustment of the cutter are important for guaranteeing the cutting quality and the service life of the cutter; if the interval between the cutters is too small, the resistance between the cutters is large, the abrasion of the cutter edges is too fast, and the service life is reduced; the cutter can also cause the cutting defect of transparent paper after wearing and tearing to lead to carrying askew or carrying in place, produce tobacco bale quality defect, consequently the high or low direct influence cutter of maintenance personal skill level changes adjustment quality. Aiming at the problem, no effective method exists in other factories in the same industry at present, and the only method for improving the adjusting quality and the adjusting efficiency of the cutter is as follows: exercise is performed continuously. However, at present, the cutting device is arranged on the transparent paper packaging machine, training can be performed only in the period of equipment production stopping, training time is limited, and skill improvement is slow.
Continuous exercise and long-time experience accumulation are required for improving the quality and effect of cutter adjustment, so that a transparent paper cutter adjustment training platform needs to be developed and designed to solve the problem.
Disclosure of Invention
The invention provides a transparent paper cutter adjustment teaching and practical training platform for solving the problems in the prior art.
The technical scheme adopted by the invention is as follows: the utility model provides a real standard platform of transparent paper cutter adjustment teaching, including a table, install the support frame on the table, install transparent paper frame device, transparent paper unreeling device and transparent paper cutter subassembly on the support frame; the transparent paper cutter assembly 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 finally is cut into transparent paper with fixed length by the rotary movable knife.
Further, the transparent paper frame device comprises a transparent paper supporting shaft which is arranged on the supporting frame through a transparent paper support, two installation seats are rotatably arranged on the transparent paper supporting shaft, transparent paper rolls are arranged on the two installation seats, the installation seats are positioned through positioning check rings, and a brake disc is further arranged on one of the installation seats.
Further, the transparent paper unreeling device comprises an adjusting rod support, a first tension spring pin shaft and a brake arm support shaft which are arranged on the supporting frame, and a brake belt is arranged on the brake disc; an adjusting rod is arranged on the adjusting rod support, one end of the adjusting rod is fixed with an adjusting nut, and the other end of the adjusting rod is connected with one end of the braking belt through an L-shaped connecting piece; the brake arm support shaft is rotatably provided with a brake arm which is in a V shape, one end of the brake arm is connected with the other end of the brake belt, the other end of the brake arm is provided with a paper guide roll shaft, and the paper guide roll shaft is rotatably provided with a second paper guide roll; and a second tension spring pin shaft is further arranged at one end of the brake arm, which is close to the brake belt, 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 connected with the brake belt is an execution arm, one end of the brake arm, which is provided with the paper guiding 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.
Further, the support frame is provided with a mounting groove, the end part of the platy adjusting rod support seat is positioned in the mounting groove, and the adjusting rod support seat is fixed on the support frame through a screw.
Further, the table size is: a length of 1500 mm x width of 750 mm x height of 800 mm; the size of the operation space adjusted by the cutter is as follows: 347mm long by 465mm wide by 229.5mm high; the height of the axle center of the rotating axle from the ground is 980mm.
Further, the support frame is installed on one side of the table top of the table, and the whole table top of the table sequentially comprises a practical training operation area, a part placement area and a work tool placement area.
Further, the device also comprises a timer which is arranged at the top end of the supporting frame.
The beneficial effects of the invention are as follows: according to the transparent paper cutter adjustment teaching and practical training platform disclosed by the invention, maintenance personnel can perform installation, maintenance and training of the cutter at any time, so that the operation skill is rapidly improved, the cutter adjustment standardization level and adjustment quality are improved, the adjustment time consumption is shortened, and the cutter replacement frequency is reduced.
Drawings
FIG. 1 is a schematic view of a prior art transparency paper cutter assembly when open;
FIG. 2 is a schematic view of a prior art cellophane cutter assembly when closed;
FIG. 3 is a schematic view of the cutting states of the movable blade and the stationary blade in the cellophane cutter assembly;
fig. 4 is a schematic structural diagram of a training platform for adjusting a transparent paper cutter according to the present invention;
FIG. 5 is a schematic diagram illustrating assembly of a cellophane cutter assembly with a support frame in accordance with the present disclosure;
FIG. 6 is a schematic view of a transparent paper holder device according to the present disclosure;
FIG. 7 is a semi-sectional view of the disclosed cellophane carriage assembly;
FIG. 8 is a schematic view of a retaining ring according to the present disclosure;
FIG. 9 is a schematic view of a transparent paper unreeling device of the present disclosure;
FIG. 10 is an exploded view of the disclosed cellophane unwind apparatus;
fig. 11 is a schematic diagram of the operation of the unreeling device of the present invention.
Reference numerals: 1-cellophane cutter assembly, 101-stationary knife, 102-rotating shaft, 103-moving knife, 104-first locking screw, 105-second locking screw, 106-adjusting screw, 107-pull roll, 108-first guide roller, 2-table, 201-training operation area, 202-parts placement area, 203-tool placement area, 3-support frame, 301-mounting groove, 4-cellophane holder device, 401-cellophane support shaft, 402-mount, 403-mount bearing, 404-positioning retainer ring, 405-cellophane roll, 406-brake disc, 407-cellophane holder, 5-cellophane unreeling device, 501-brake band, 502-first tension spring pin, 503-adjusting lever support, 504-adjusting nut, 505-adjusting lever, 506-tension spring, 507-brake arm support shaft, 508-second guide roller, 509-guide roller shaft, 510-brake arm, 511-second tension spring pin, 512-L connector, 513-needle bearing, 514-deep groove ball bearing, 6-timer, 7-display board, 8-transparent paper.
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 real standard platform of transparent paper cutter adjustment teaching, wherein transparent paper cutter takes YB55 capsule transparent paper cutter as an example.
Noun interpretation:
1. YB55 capsule cellophane packagine machine
The YB55 small box transparent paper packaging machine is a downstream machine of the ZB25/ZB45 packaging unit, and has the function of wrapping fixed-length transparent paper adhered with a stay wire on a small box cigarette packet, so that the small box is more exquisite, and meanwhile, the effect of preventing moisture and keeping the quality of cigarettes is achieved.
2. YB55 capsule cellophane cutter
The cutting of the YB55 small box transparent paper is completed by two cutters, wherein one cutter is arranged on a rotating shaft and rotates along with the shaft to be called a movable cutter, and the other cutter is arranged on a cutter holder to be called a fixed cutter; the movable knife is not adjustable after being assembled on the rotating shaft, so the movable knife is also called as an unadjustable knife; the locking screw of the fixed knife and the knife holder is loosened, and the left and right movement of the fixed knife can be realized by using the adjusting screw, so the fixed knife is also called an adjustable knife. The two knives shear the transparent paper from inside to outside, and the fixed-length cutting of one transparent paper is completed by one rotation of the movable knives.
Specifically, referring to fig. 1 to 3, the movable blade 103 is mounted on the rotation shaft 102 by three second locking screws 105; the first locking screw 104 is loosened, the fixed cutter 101 can be moved rightward by the adjusting screw until the fixed cutter is tangent with the movable cutter 103 point by point, and the cutting torque is less than 2Nm under the condition of good transparent paper cutting quality.
The technical difficulty of the cutter device is 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 cutter 103 is required to be repeatedly rotated in adjustment to check and accept the cutting track of the two cutters; (2) The fixed cutter 101 is provided with 4 adjusting screws 106 for adjustment, 4 first locking screws 104 are used for fixation, the internal and external point-by-point cutting adjustment is difficult to control, the requirement on experience is extremely high, the adjustment of the adjusting bolts is slightly careless, reworking and readjustment are needed, and the risk that the cutting knife is damaged due to collision between the two adjacent adjusting bolts when the adjustment is serious can occur, so that the adjustment time is long; (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 required cutting torque is in adjustment, the better the required cutting torque is, and the adjustment difficulty is improved; (4) The device has no spare equipment for maintenance personnel to exercise the adjustment of YB55 transparent paper cutters, and the maintenance personnel has no practical exercise opportunity and has no adjustment experience.
The YB45/YB25 aluminum foil paper cutting knife assembly and the YB95 transparent paper cutting knife assembly in the ZB45/ZB25 packaging unit are similar to the YB55 transparent paper cutting knife assembly in structure, are completely consistent in cutting principle, and are 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 the other two cutters can be easily dealt with by only grasping 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 maintenance personnel can install maintenance operation and training at any time, improve operating skill rapidly, promote cutter adjustment standardization level and adjustment quality, shorten the adjustment consuming time, reduce cutter change frequency.
Referring to fig. 4, the embodiment discloses a real training platform for adjusting a transparent paper cutter, which comprises a table 2, wherein a support frame 3 is arranged on the table 2, and a transparent paper frame device 4, a transparent paper unreeling device 5 and a transparent paper cutter assembly 1 are arranged on the support frame 3; the transparent paper cutter assembly 1 comprises a traction roller 107, a fixed cutter 101 which is arranged on a cutter holder and can be adjusted in the horizontal direction, and a movable cutter 103 which is fixedly arranged on a rotary shaft 102; the transparent paper unreeling device 5 is used for stably conveying transparent paper; the transparent paper is output from the transparent paper holder device 4 under the traction of the traction roller 107, sequentially passes through the transparent paper unreeling device 5 and the traction roller 107, and finally is cut into transparent paper with a fixed length by the rotating movable knife 103.
Specifically, in order to ensure that the teaching training platform of this embodiment is consistent with the original YB55 transparent paper cutter device, the transparent paper cutter assembly 1 of the YB55 small box transparent paper packaging machine is selected as the main body of training platform adjustment exercise, so as to ensure the reality and consistency of training.
Specifically, the teaching training platform is required to achieve the training effect consistent with that of the original machine, and besides being used as a training main body, the teaching training platform also needs to simulate the same operation space and operation position as those of the real equipment. The specific position of the transparent paper cutter assembly 1 on the original YB55 machine body is taken as an object to be measured, and the size of an operation space (namely a practical training operation area) for adjusting the cutter is determined to be: 347mm long by 465mm wide by 229.5mm high; determining that the height position of the training platform taking the axis of the rotary shaft 102 of the movable cutter 103 as a reference is 980mm; the width (depth) position of the training platform taking the mounting surface of the transparent paper cutter assembly 1 as a reference is determined to be 456mm.
After the above dimensions are determined, 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 adopts the laminating of 3 mm polymer composite rubber in the desktop, and 2 panels of table adopt high fiber sheet material, and the panel is 5mm high strength plastic bordure all around, and the frame adopts reassembling type steelframe design structure, compromise bearing capacity and stability. The desk leg adopts the anti-oxidation callus on the sole of forging disc, and is heavy pressure resistant, and 3cm height-adjustable solves the rocking phenomenon that the ground unevenness caused.
Furthermore, the table 2 is provided with a practical training operation area 201, a component placement area 202 and a work tool placement area 203 according to practical training requirements, and the table 2 can be further provided with a timer 6, an adjustment operation instruction, a judgment standard and an optimal result display area. The dimensions of the training operation area 201 are as follows: 347mm by 465mm by 229.5mm. The component placement area 202 has a length of 550 mm×450 mm, and the work implement placement area 203 has a size of 580 mm×580 mm.
Specifically, the timer 6 is composed of a timer display, a display bracket, a wire, a control button and the like, and has the functions of prompting the training personnel to grasp time and recording the training and competition time. The timer 6 is mounted on the support frame 3 by 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 unreeling device 5 are fixed with the desktop through the support frame 3. The design is as follows: the method comprises the following steps that (1) a No. 45 steel plate with the thickness of 8 mm is selected as a machining material for a supporting 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 supporting frame 3 is arranged on the tabletop of the table 2 through 8M 8 multiplied by 60mm bolts; (4) The transparent paper cutter assembly 1 is fixed on the support frame 3 through 7M 8 multiplied by 40mm bolts (see figure 5), and the support frame 3 is provided with a U-shaped opening, so that the mounting surface of the transparent paper cutter assembly 1 is attached to the support frame 3 and is consistent with the mounting mode of the transparent paper cutter assembly 1 on the original equipment; (5) The upper right side of the support frame 3 is provided with 4 screw holes for installing the transparent paper frame device 4, and a hole in the middle of the 4 screw holes is used for installing a first tension spring pin 502 in the transparent paper unreeling device 5; (6) The support frame 3 also provides for the mounting of the brake band 501 of the transparent paper roll 405 and the mounting of the transparent paper brake arm 510.
Referring to fig. 6-7, the cellophane paper holder device 4 comprises a cellophane paper support shaft 401 mounted on the support frame 3 through a cellophane paper support 407, two mounting seats 402 are rotatably mounted on the cellophane paper support shaft 401 through mounting seat bearings 403, a cellophane paper roll 405 is arranged on the two mounting seats 402, the mounting seats 402 are positioned through positioning check rings 404, and a brake disc 406 is further mounted on one of the mounting seats 402. In another embodiment, the cellophane support shaft 401 may be directly mounted on the support frame 3.
In particular, the cellophane paper holder device 4 mainly serves for the mounting and positioning of a cellophane paper roll. The transparent paper support 407 is connected with the support frame 3 through 4M 8 x 25mm screws, the transparent paper support shaft 401 is mounted on the transparent paper support 407 through fastening nuts, the inner and outer transparent paper mounting seats are respectively mounted on the transparent paper support shaft 401 through 2 6004 deep groove ball bearings 514, the mounting seats are axially positioned by means of the positioning retainer rings 404, and the transparent paper roll 405 is mounted between the inner and outer mounting seats.
Specifically, the transparent paper support 407 is made of 45# steel, and is used as a connecting piece between the transparent paper roll 405 and the training platform support 3, and the design key points of the transparent paper support are as follows: a. because 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 that interference does not occur, the size of the transparent paper frame device 4 exceeding the table 2 needs to be controlled within 150mm so as to reduce the space occupation area of a practical training table and improve the safety of practice operation, the positioning size of the shaft assembly 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 part is improved by the aid of 4M 8 multiplied by 25mm screws through two positioning surfaces.
Specifically, the cellophane support shaft 401 is made of 45# steel and is connected to the cellophane holder 407 by a nut of M10, which functions to support the cellophane roll 405. The design key points are as follows: the transparent paper supporting shaft 401 is positioned by adopting a shaft shoulder, so that the perpendicularity of the transparent paper supporting shaft 401 and the transparent paper support 407 meets the unreeling requirement of the transparent paper, and when the transparent paper is pulled by the traction roller 107 in the transparent paper cutter assembly 1, the transparent paper can be uniformly unfolded, and the phenomenon of loose edges does not occur.
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. the two deep groove ball bearings 514 of 6004 are assembled in the mounting seat, the transparent paper support shaft 401 can be used as a center to rotate freely, and meanwhile, the transparent paper support shaft 401 and the 6004 bearings are in clearance fit, so that the mounting seat 402 can axially move along the transparent paper support shaft 401; b. the mounting seat is made of an aluminum alloy material, and the quality of the mounting seat is lower than that of other common metal materials on the premise of guaranteeing functions, so that the bending moment born by the transparent paper support shaft 401 can be reduced; c. the transparent paper is arranged between the inner mounting seat and the outer mounting seat, and the transparent paper is positioned on the transparent paper supporting shaft 401 through the mounting seat; d. 4M 6 threaded holes are uniformly distributed on the outer end surface of the mounting seat, and the threaded holes of the inner mounting seat are used for mounting the brake disc 406.
Referring to fig. 8, the two positioning retainers 404 are made of 45# steel, and are used for axially positioning the inner and outer mounting seats on the transparent paper support shaft 401 respectively. The design key points are as follows: a. the positioning check ring 404 is used for realizing the positioning of 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 surface of the positioning check ring 404, and the boss is used for limiting the bearing inner ring on the premise of not influencing the free rotation of the bearing outer ring and the mounting seat; b. the positioning check ring 404 is provided with an M5 radial threaded hole on the outer cylinder surface, and the locking of the positioning check ring 404 and the transparent paper support shaft 401 is realized 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 roller 108 of the transparent paper cutter assembly 1, and the transparent paper is ensured to be positioned at the center of the cutter so as to be convenient for cutting; d. after the transparent paper roll 405 is axially positioned, the axial position of the inner side mounting seat is fixed and is not changed any more, when the transparent paper roll 405 is used up to be replaced, the outer side positioning check ring 404 locking screw is loosened, the check ring and the outer side mounting seat are axially pulled out, the replacement of the transparent paper roll 405 can be realized, and the newly-installed paper roll also realizes axial accurate positioning by virtue of the inner side mounting seat.
Referring to fig. 9-10, the transparent paper unreeling device 5 comprises an adjusting rod support 503, a first tension spring pin 502 and a brake arm supporting shaft 507, which are installed on the supporting frame 3, and a brake belt 501 is arranged 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 braking band 501 through an L-shaped connecting piece 512; a brake arm 510 is rotatably mounted on the brake arm supporting shaft 507, the brake arm 510 is V-shaped, one end of the brake arm 510 is connected with the other end of the brake belt 501, a paper guiding roller shaft 509 is mounted at the other end of the brake arm 510, and a second paper guiding roller 508 is rotatably mounted on the paper guiding roller shaft 509; a second tension spring pin shaft 511 is further installed at one end, close to the brake belt 501, of the brake arm 510, and a tension spring 506 is arranged between the first tension spring pin shaft 502 and the second tension spring pin shaft 511.
The transparent paper is pulled and unfolded by the traction roller 107 in the transparent paper cutter assembly 1, the transparent paper unreeling device 5 controls the rotation speed of the paper roll under different unfolding speeds of the traction roller 107, so that the linear speeds of the traction roller 107 and the paper roll are kept consistent, and the phenomenon that paper tapes are loosened due to too high and too slow of the rotation speed of the paper roll or broken due to too low of the rotation speed of the paper roll is avoided. The transparent paper unreeling device 5 provides a guarantee for continuous and stable paper adjustment of the training table cutters.
Specifically, the brake band 501 is made of nylon sheet base band (which may also be made of cowhide) commonly used in workshops, and has an external dimension of 605mm×20mm. The brake band 501 is wrapped on the outer cylindrical surface of the brake disc 406, the wrap angle of the band and the belt wheel is 239.50, and the unreeling speed of the transparent paper roll 405 is controlled by the brake disc 406. One end of the brake belt 501 is connected with the brake arm 510 through two M5X 10mm screws, and the other end is connected with the adjusting rod 505 through one M5X 10mm screw; the purpose of connecting the adjusting rod 505 by using one adjusting nut 504 is to adjust the combination degree of the brake band 501 and the wrapping part 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 lever support 503 is assembled in the mounting groove 301 on the supporting frame 3 through an m8×25mm locking screw, and the inclined mounting groove 301 realizes the positioning of the adjusting lever support 503. The adjusting rod 505 is installed in an assembly hole on the adjusting rod support 503, the adjusting nut 504 of the rotation M8 can realize axial movement of the adjusting rod 505, and the axial movement of the adjusting rod 505 can change the braking force of the braking belt 501 on the braking disc 406. In order to realize the rotation of the adjusting nut 504 and the linear movement of the adjusting rod 505, a guide groove with the width of 4mm and 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, a screw hole of M3 is designed right above the assembly hole of the adjusting rod support 503 corresponding to the guide groove, and a screw of M3 multiplied by 12 enters the guide groove of the adjusting rod 505 through the screw hole, so that the circumferential movement of the adjusting rod 505 is limited by the structure. When adjustment is needed, the adjustment nut 504 is rotated by just slightly loosening the M3 screw.
Specifically, the brake arm 510 is made of 45# steel, and is supported by the brake arm 510 and is mounted on the support frame 3. 2 4900 needle bearings 513 are arranged in parallel in the middle positioning hole of the brake arm 510, so that reciprocating swing is realized by taking the support shaft of the brake arm 510 as the center; 4900 needle bearing 513 relies on brake arm 510 to support the shaft shoulder and collar at the shaft head location to effect axial positioning of brake arm 510. The brake arm 510 can be regarded as a lever with a middle positioning hole as a fulcrum, one end of the connecting brake belt 501 is an executing arm, one end of the mounting guide roller is a control arm, an included angle of 120 degrees is formed between the executing arm and the control arm, and the length ratio of the executing arm to the control arm is 1:2, so that the defect that the mounting space of the support frame 3 is narrow and is unfavorable for free swinging of the brake arm 510 is overcome, and meanwhile, when the second guide roller 508 swings upwards, the unreeling control of the transparent paper roll 405 can be realized by overcoming the tension of the tension spring with a small force. The tension spring is an important part of the braking band 501 for applying braking force to the braking disc 406, and the tension spring 506 with the diameter of 2mm, the intermediate diameter of 14mm and the free length of 68.5mm is selected as a practical training platform unreeling device for controlling the tension spring through reference comparison and calculation; one end of the tension spring 506 is connected with the brake arm 510 through a second tension spring pin shaft 511, the other end of the tension spring is arranged on the support frame 3 through a first tension spring pin shaft 502, when the second paper guide roller 508 loses upward power, the tension spring 506 contracts, one end of an executing arm on the brake arm 510 is controlled to swing upwards to tighten the brake belt 501, and therefore the unreeling speed of paper rolls is reduced. One end of a control arm on the brake arm 510 is provided with a paper guide roller shaft 509, and the paper guide roller shaft 509 and the paper guide roller shaft are connected through a nut of M8; the second paper guide roller 508 is made of aluminum alloy material, two ends of the inner hole of the roller center are respectively provided with a deep groove ball bearing 514 of 6001, and the second paper guide roller 508 can freely rotate by taking the paper guide roller shaft 509 as the center through the 6001 bearings; 6001 bearing relies on the retainer ring at the shoulder and axle head position of paper guide roller 509 to achieve axial positioning.
Referring to fig. 11, the operation principle of the transparent paper unreeling device 5 is as follows:
a. the transparent paper roll 405 is integrally installed with the brake disc 406 through the installation seat, the tension of the transparent paper 8 is derived from the traction roller 107 in the transparent paper cutter assembly 1, and the nylon sheet base band serving as the brake band 501 has 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 regulating 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 stationary. The magnitude of the braking force can be achieved by rotating the adjusting nut 504 to change the axial position of the adjusting rod 505.
c. The braking principle of the braking band 501 is realized by the compensation of the tension spring 506 according to the fact that the sum of the two sides of the triangle is larger than the third side. When the traction roller 107 rotates, the transparent paper 8 is pulled to be conveyed downwards, and at the moment, the paper guide roller on the braking arm 510 swings upwards against the tension of the tension spring due to the action of the transparent paper, and the braking belt 501 gradually releases the braking force on the braking disc 406, so that the transparent paper is gradually unfolded from the paper roll. When the unwinding 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 exerted by the transparent paper on 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, and meanwhile, the braking belt 501 gradually strengthens the braking force on the braking disc 406, so that the rotating speed of the braking disc 406 and the paper roll is reduced, the unwinding speed of the transparent paper is reduced along with the rotating speed of the braking disc 406, and the unwinding speed of the transparent paper is matched with the pulling-down speed of the traction roller 107, so that smooth conveying of the transparent paper is realized, and the normal work of a practical training platform is ensured.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The real standard platform of transparent paper cutter adjustment teaching is characterized by comprising 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 assembly 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 finally is cut into transparent paper with fixed length by the rotary movable knife;
the transparent paper frame device comprises a transparent paper supporting shaft which is arranged on a supporting frame through a transparent paper bracket, two mounting seats are rotatably arranged on the transparent paper supporting shaft, transparent paper rolls are arranged on the two mounting seats, the mounting seats are positioned through positioning check rings, and a brake disc is further arranged on one of the mounting seats;
the transparent paper unreeling device comprises an adjusting rod support, a first tension spring pin shaft and a brake arm support shaft which are arranged on the supporting frame, and a brake belt is arranged on the brake disc; an adjusting rod is arranged on the adjusting rod support, one end of the adjusting rod is fixed with an adjusting nut, and the other end of the adjusting rod is connected with one end of the braking belt through an L-shaped connecting piece; the brake arm support shaft is rotatably provided with a brake arm which is in a V shape, one end of the brake arm is connected with the other end of the brake belt, the other end of the brake arm is provided with a paper guide roll shaft, and the paper guide roll shaft is rotatably provided with a second paper guide roll; and a second tension spring pin shaft is further arranged at one end of the brake arm, which is close to the brake belt, and a tension spring is arranged between the first tension spring pin shaft and the second tension spring pin shaft.
2. The real standard platform of transparent paper cutter adjustment teaching of claim 1, wherein braking arm connects braking area one end and is the execution arm, installs guide roll axle one end and is the control arm, is 120 contained angles between execution arm and the control arm to length ratio is 1:2.
3. The transparent paper cutter adjustment teaching and practical training platform according to claim 1, wherein the support frame is provided with a mounting groove, the end part of the platy adjusting rod support seat is positioned in the mounting groove, and the adjusting rod support seat is fixed on the support frame through a screw.
4. The cellophane cutter adjustment teaching and practical training platform according to claim 1, wherein the platform table is sized as follows: a length of 1500 mm x width of 750 mm x height of 800 mm; the size of the operation space adjusted by the cutter is as follows: 347mm long by 465mm wide by 229.5mm high; the height of the axle center of the rotating axle from the ground is 980mm.
5. The training table for cellophane cutter adjustment teaching of claim 4, wherein the support frame is mounted on one side of a table top, and the whole table top comprises a training operation area, a part placement area and a work tool placement area in sequence.
6. The cellophane cutter adjustment teaching and practical training platform according to claim 1, further comprising a timer mounted on the top end of the support frame.
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| CN202211042266.3A CN115359711B (en) | 2022-08-29 | 2022-08-29 | Real standard platform of cellophane cutter adjustment teaching |
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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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| CN115359711A (en) | 2022-11-18 |
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