CN113734856A - Automatic packaging film roll changing and unwinding mechanism for marinated egg packaging - Google Patents
Automatic packaging film roll changing and unwinding mechanism for marinated egg packaging Download PDFInfo
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- CN113734856A CN113734856A CN202110840856.XA CN202110840856A CN113734856A CN 113734856 A CN113734856 A CN 113734856A CN 202110840856 A CN202110840856 A CN 202110840856A CN 113734856 A CN113734856 A CN 113734856A
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- Prior art keywords
- packaging film
- packaging
- plate
- unwinding
- frame
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Classifications
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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
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
- B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
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- 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
- B65B25/00—Packaging other articles presenting special problems
- B65B25/001—Packaging other articles presenting special problems of foodstuffs, combined with their conservation
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- 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
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
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- 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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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- 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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
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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
- B65H16/00—Unwinding, paying-out webs
- B65H16/02—Supporting web roll
- B65H16/06—Supporting web roll both-ends type
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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
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
Abstract
The invention discloses an automatic packaging film roll changing and unwinding mechanism for marinated egg packaging, which comprises a rack, wherein a packaging film overturning mechanism, a packaging film unwinding mechanism, a packaging film connecting mechanism and a residual edge cutting mechanism are arranged in the rack, the packaging film overturning mechanism comprises an overturning shaft, an overturning plate, an inserting shaft and an overturning driving mechanism for driving the overturning shaft to overturn, the packaging film unwinding mechanism pulls a packaging film to unwind, the packaging film connecting mechanism comprises a transverse moving mechanism, a lifting mechanism, a lower positioning driven mechanism, an upper hot pressing head and a vacuum adsorption mechanism, and the residual edge cutting mechanisms are arranged in an up-and-down mode. The reel changing and unwinding mechanism can control the two rolls of packaging films to keep the synchronous unwinding speed for unwinding, and then the two rolls of packaging films which move synchronously are welded together end to end in a hot-pressing welding mode, so that the packaging films can be changed without stopping or interrupting, and the production efficiency is improved; the excess edges at the connecting part are cut by the excess edge cutting mechanism, so that the excess edges are repaired, and the packaging quality is improved.
Description
Technical Field
The invention relates to the technical field of marinated egg packaging, in particular to an automatic packaging film roll changing and unwinding mechanism for marinated egg packaging.
Background
In the packaging of marinated eggs, a plurality of egg slots for holding the marinated eggs are generally pressed on a lower packaging film, then covered with an upper packaging film, and then heated and sealed in plastic. The existing packaging film forming equipment has the following defects:
1. the upper packaging film or the lower packaging film cannot be automatically switched, after a roll of film is unreeled, the machine needs to be stopped, workers unload an empty inner roll and then reload a new roll of film, the process is time-consuming and labor-consuming, potential safety hazards exist, the automation degree is low, the production efficiency is influenced, and the machine is not suitable for modern production;
2. the part of the packaging machine adopts hot pressing or other connection modes to connect the quickly-unreeled roll film with the new roll film together, but excessive redundant edges exist at the joint of the roll films, the redundant edges are not repaired, and the packaging quality is influenced.
Disclosure of Invention
The invention aims to solve the problems and designs an automatic packaging film roll changing and unwinding mechanism for marinated egg packaging.
The technical scheme of the invention is that the automatic packaging film roll changing and unwinding mechanism for marinated egg packaging comprises a rack, wherein the rack is internally provided with:
the packaging film turnover mechanism comprises a turnover shaft arranged in a rack and a turnover plate arranged on the turnover shaft, wherein the two ends of the turnover plate are both fixed with insertion shafts, one insertion shaft is positioned at a standby station and is inserted with a packaging film to be unreeled, the other insertion shaft is positioned at an unreeling station and is inserted with a packaging film to be unreeled, and a turnover driving mechanism for driving the turnover shaft to turn over for 180 degrees so as to enable the two insertion shafts to switch stations is arranged on the rack;
the packaging film unwinding mechanism comprises a lower carrier roller arranged in the frame and an upper pressing roller positioned above the lower carrier roller, and the upper pressing roller is matched with the lower carrier roller to unwind the packaging film being unwound;
the packaging film connecting mechanism comprises a transverse moving mechanism which is arranged on the frame and can transversely move along the linear direction parallel to the unwinding direction of the packaging film being unwound, and a lifting mechanism which is arranged at the transverse moving end of the transverse moving mechanism and can lift along the vertical direction, the lower positioning driven mechanism is arranged on the rack and positioned between the unreeling station and the packaging film unreeling mechanism, an upper hot pressing head and a vacuum adsorption mechanism for adsorbing a packaging film to be unreeled are sequentially arranged at the lifting end of the lifting mechanism along the unreeling direction of the packaging film to be unreeled, an initial hot pressing welding station and a welding completion station are arranged between the unreeling station and the packaging film unreeling mechanism, a push rod matched with the lower positioning driven mechanism at the initial hot pressing welding station to drive the lower positioning driven mechanism to move is further arranged at the lifting end of the lifting mechanism, and the upper hot pressing head and the lower positioning driven mechanism synchronously move and are matched between the initial hot pressing welding station and the welding completion station to thermally press and weld the packaging film to be unreeled and the packaging film to be unreeled into a whole; the speed of the transverse moving mechanism during moving is the same as the unwinding speed of the packaging film unwinding mechanism;
the upper-layer residual edge cutting mechanism is positioned between the upper hot pressing head and the vacuum adsorption mechanism and is used for cutting the residual edge of the packaging film to be unreeled; and the lower-layer residual edge cutting mechanism is arranged on the lower positioning driven mechanism and is used for cutting the residual edge of the packaging film which is being unreeled.
Furthermore, the overturning driving mechanism comprises a first speed reduction stepping motor arranged on the rack, a first gear is arranged at the output end of the first speed reduction stepping motor, a second gear is arranged on the overturning shaft, and the first gear is in meshed connection with the second gear; the packaging film turnover mechanism further comprises a limiting sleeve which is arranged on the insertion shaft and used for limiting the insertion shaft separated from the coiled packaging film to be away from one end of the turnover plate, and the limiting sleeve is fixed on the insertion shaft through a set screw.
Furthermore, the transverse moving mechanism comprises a lead screw and a polished rod which are arranged on the rack, a nut seat arranged on the lead screw and the polished rod, a transverse moving plate fixed at the bottom of the nut seat, and a transverse moving stepping motor which is arranged on the rack, an output shaft of the transverse moving stepping motor is connected with the lead screw through a coupler, and the nut seat is connected with the polished rod in a sliding mode and is in threaded connection with the lead screw.
Furthermore, the lifting mechanism comprises a servo cylinder arranged on the transverse moving plate, a fixed plate arranged on a servo cylinder shell, a vertical rod inserted on the fixed plate in a sliding manner, and a lifting plate fixedly connected with the lower end of the vertical rod and the telescopic end of the servo cylinder.
Further, lower location follower including install in the frame and with just unreeling packaging film and unreeling direction parallel arrangement's guide bar, slidable mounting has the guide holder on the guide bar, installs the driven plate on the guide holder, is fixed with the locating rack on the driven plate, be fixed with on the locating rack with last hot pressing head complex down locating plate, the extension spring is installed to the guide holder lower extreme, the extension spring other end to with just unreel packaging film and unreel the opposite direction of direction and extend and install in the frame.
Further, the residual edge cutting mechanism comprises an installation base body, a sliding groove formed in the installation base body, a sliding block slidably installed in the sliding groove, a first pressure spring installed in the sliding groove, one end of the first pressure spring is connected with the sliding groove, the other end of the first pressure spring is connected with the sliding block, a toggle column fixed at one end of the sliding block, which is opposite to the first pressure spring, and extends out of the sliding groove, two spring telescopic rods hinged with the installation base body, a connecting rod, one end of which is hinged with the sliding block, and the other end of which is hinged with a fixed sleeve section of one of the spring telescopic rods, a tool apron hinged with the telescopic ends of the two spring telescopic rods, and a cutter installed at the lower end of the tool apron, wherein the installation base body, the tool apron and the two spring telescopic rods form a parallelogram connecting rod structure; the mounting base body of the upper-layer residual edge cutting mechanism is a lifting plate; the mounting base body of the lower-layer residual edge cutting mechanism is a driven plate, and the lower-layer residual edge cutting mechanism is positioned on one side, facing the unreeling station, of the lower positioning plate; a fixed cutting plate matched with the upper-layer residual edge cutting mechanism is fixed at the top of the positioning frame, a first rotating shaft and a second rotating shaft which are vertically arranged are installed on the positioning frame, a torsion spring and a movable cutting plate matched with the lower-layer residual edge cutting mechanism are installed on the first rotating shaft, one end of the torsion spring is connected with the first rotating shaft, the other end of the torsion spring is connected with the positioning frame, a first bevel gear is installed at the lower part of the first rotating shaft, a fourth gear and a second bevel gear are installed on the second rotating shaft, and the second bevel gear is meshed with the first bevel gear; a push block which is used for being in contact fit with the positioning frame and a rack which is used for being matched with the fourth gear are fixed at the bottom of the push rod, and the push block is positioned above the rack; the front unreeling packaging film penetrates through the fixed cutting plate and the lower positioning plate, and a gap for the upper hot pressing head to penetrate through is formed between the fixed cutting plate and the movable cutting plate; two arc-shaped guide rails which are arranged up and down and are respectively matched with the toggle columns of the two remaining edge cutting structures are fixed on the rack, and the arc-shaped guide rails are positioned between an initial hot-pressing fusion welding station and a fusion welding completion station.
Further, a collecting box used for collecting the surplus edge of the packaging film which is just unreeled and cut by the surplus edge cutting mechanism on the lower layer is installed on the driven plate, and the collecting box is located on one side, back to the positioning frame, of the surplus edge cutting mechanism on the lower layer.
Furthermore, the lower supporting roller and one end of the upper pressing roller are respectively provided with a third gear which is meshed with each other, the rack is provided with a second speed reduction stepping motor, the output end of the second speed reduction stepping motor is provided with a fifth gear, and the fifth gear is meshed with one of the third gears.
Further, install the proximity switch who is used for detecting just unreeling the packaging film in the frame, proximity switch is located and unreels between station and the initial hot-pressing welding station.
Furthermore, the vacuum adsorption mechanism comprises two negative pressure steel pipes which are slidably arranged at the lifting end of the lifting mechanism and can move in the vertical direction, the upper ends of the negative pressure steel pipes are connected with a negative pressure source through hoses, the bottom of each negative pressure steel pipe is provided with a vacuum chuck, a second pressure spring is sleeved on each negative pressure steel pipe, the lower part of each negative pressure steel pipe is provided with a limiting ring, the lifting end of the lifting mechanism at the upper end of the second pressure spring is abutted, and the lower end of the second pressure spring is abutted to the limiting ring; in a natural state, the height of the adsorption end of the vacuum chuck is lower than that of the upper hot pressing head, and the height of the upper hot pressing head is lower than that of the upper-layer residual edge cutting mechanism.
The invention has the beneficial effects that: the two rolls of packaging films are controlled to maintain the synchronous unreeling speed for unreeling, and the two rolls of packaging films which move synchronously are welded together end to end in a hot-pressing welding mode, so that the packaging films can be changed without stopping and interrupting, and the production efficiency is improved; the excess edges at the connecting part are cut by the excess edge cutting mechanism, so that the excess edges are repaired, and the packaging quality is improved.
Drawings
FIG. 1 is a first state diagram of the present invention (the vacuum suction mechanism is in the standby position);
FIG. 2 is a second state diagram of the present invention (the vacuum suction mechanism is located at the initial thermocompression bonding station);
FIG. 3 is a state diagram of the present invention (vacuum suction mechanism at the welding completion station);
FIG. 4 is a side view of the first embodiment of the present invention;
FIG. 5 is a side view partially in accordance with the present invention;
FIG. 6 is a schematic structural view of a packaging film turnover mechanism;
FIG. 7 is a schematic structural diagram of a packaging film unwinding mechanism;
FIG. 8 is an enlarged view of a portion of FIG. 5 at A;
FIG. 9 is an enlarged view of a portion of FIG. 1 at B;
FIG. 10 is an enlarged view of a portion of FIG. 4 at C;
FIG. 11 is a partial schematic view of the wrapping film attachment mechanism and the residual edge removal mechanism of the condition of FIG. 2;
in the figure, 1, a frame; 101. a standby station; 102. packaging film to be unreeled; 103. an unwinding station; 104. a front unwinding packaging film; 105. an initial hot-press welding station; 106. welding is completed at a station; 107. a proximity switch; 2. the packaging film turnover mechanism; 201. a turning shaft; 202. a turnover plate; 203. inserting a shaft; 204. a limiting sleeve; 205. tightening the screw; 21. a turnover driving mechanism; 211. a first deceleration stepping motor; 212. a first gear; 213. a second gear; 3. a packaging film unwinding mechanism; 31. a lower carrier roller; 32. an upper compression roller; 33. a third gear; 34. a second reduction stepping motor; 35. a fifth gear; 4. a packaging film connecting mechanism; 41. a traversing mechanism; 411. a lead screw; 412. a polish rod; 413. a nut seat; 414. transversely moving the plate; 415. a traversing stepping motor; 42. a lifting mechanism; 421. a servo cylinder; 422. a fixing plate; 423. a vertical rod; 424. a lifting plate; 43. a lower positioning driven mechanism; 431. a guide bar; 432. a guide seat; 433. a driven plate; 434. a positioning frame; 435. a lower positioning plate; 436. a tension spring; 44. an upper hot pressing head; 45. a vacuum adsorption mechanism; 451. a negative pressure steel pipe; 452. a hose; 453. a vacuum chuck; 454. a second pressure spring; 455. a limiting ring; 46. a push rod; 5. a residual edge cutting mechanism; 501. a chute; 502. a slider; 503. a first pressure spring; 504. shifting the column; 505. a spring telescopic rod; 506. a connecting rod; 507. a tool apron; 508. a cutter; 509. fixing the cutting plate; 510. a first rotating shaft; 511. a second rotating shaft; 512. a torsion spring; 513. a movable cutting plate; 514. a first bevel gear; 515. a fourth gear; 516. a second bevel gear; 517. a push block; 518. a rack; 519. a gap; 520. an arc-shaped guide rail; 521. and (4) collecting the box.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-11: the utility model provides an automatic reel unwinding mechanism that trades of packaging film for steamed egg packing, includes frame 1, is equipped with in the frame 1:
the packaging film turnover mechanism 2 comprises a turnover shaft 201 installed in the rack 1 and a turnover plate 202 installed on the turnover shaft 201, wherein the two ends of the turnover plate 202 are both fixed with insertion shafts 203, one insertion shaft 203 is positioned at the standby station 101 and is inserted with a packaging film 102 to be unreeled, the other insertion shaft 203 is positioned at the unreeling station 103 and is inserted with a packaging film 104 being unreeled, and the rack 1 is provided with a turnover driving mechanism 21 for driving the turnover shaft 201 to turn over for 180 degrees so as to enable the two insertion shafts 203 to switch stations;
the packaging film unwinding mechanism 3 comprises a lower carrier roller 31 installed in the rack 1 and an upper pressing roller 32 positioned above the lower carrier roller 31, and the upper pressing roller 32 is matched with the lower carrier roller 31 to unwind the packaging film 104 being unwound;
the packaging film connecting mechanism 4 comprises a transverse moving mechanism 41 which is arranged on the frame 1 and can transversely move along a linear direction parallel to the unreeling direction of the packaging film 104 being unreeled, an elevating mechanism 42 which is arranged at the transverse moving end of the transverse moving mechanism 41 and can ascend and descend along the vertical direction, and a lower positioning driven mechanism 43 which is arranged on the frame 1 and is positioned between the unreeling station 103 and the packaging film unreeling mechanism 3, wherein an upper hot pressing head 44 and a vacuum adsorption mechanism 45 for adsorbing the packaging film 102 to be unreeled are sequentially arranged at the elevating end of the elevating mechanism 42 along the unreeling direction of the packaging film 104 being unreeled, an initial hot pressing welding station 105 and a welding finishing station 106 are arranged between the unreeling station 103 and the packaging film unreeling mechanism 3, a push rod 46 which is matched with the lower positioning driven mechanism 43 at the initial hot pressing welding station 105 to drive the lower positioning driven mechanism 43 to move is further arranged at the elevating end of the elevating mechanism 42, and the upper hot pressing head 44 and the lower positioning driven mechanism 43 synchronously move and are matched and matched between the initial hot pressing welding station 105 and the welding finishing station 106 The packaging film to be unreeled 102 and the packaging film to be unreeled 104 are fused into a whole by hot pressing; the moving speed of the traversing mechanism 41 is the same as the unwinding speed of the packaging film unwinding mechanism 3, and the moving speed of the traversing mechanism 41 is the same as the unwinding speed of the packaging film unwinding mechanism 3;
the upper-layer residual edge cutting mechanism 5 is positioned between the upper hot pressing head 44 and the vacuum adsorption mechanism 45 and is used for cutting the residual edge of the packaging film 102 to be unreeled; the lower excess edge cutting mechanism 5 is mounted on the lower positioning follower 43 and is used for cutting the excess edge of the unwinding packaging film 104.
The overturning driving mechanism 21 comprises a first speed reducing stepping motor 211 arranged on the frame 1, a first gear 212 is arranged at the output end of the first speed reducing stepping motor 211, a second gear 213 is arranged on the overturning shaft 201, and the first gear 212 is meshed with the second gear 213; the packaging film turnover mechanism 2 further comprises a limiting sleeve 204 which is arranged on the insertion shaft 203 to limit the insertion shaft 203, from which the rolled packaging film is separated, to be away from one end of the turnover plate 202, and the limiting sleeve 204 is fixed on the insertion shaft 203 through a set screw 205.
The traverse mechanism 41 includes a lead screw 411 and a polished rod 412 mounted on the frame 1, a nut seat 413 mounted on the lead screw 411 and the polished rod 412, a traverse plate 414 fixed at the bottom of the nut seat 413, and a traverse stepping motor 415 mounted on the frame 1 and having an output shaft connected to the lead screw 411 through a coupling, wherein the nut seat 413 is connected to the polished rod 412 in a sliding manner and is screwed to the lead screw 411.
The lifting mechanism 42 comprises a servo cylinder 421 mounted on the traverse plate 414, a fixed plate 422 mounted on the housing of the servo cylinder 421, a vertical rod 423 slidably inserted on the fixed plate 422, and a lifting plate 424 fixedly connected with the lower end of the vertical rod 423 and the telescopic end of the servo cylinder 421. The fixed plate 422 and the vertical rod 423 play a guiding role, so that the servo cylinder 421 drives the lifting plate 424 to stably lift.
The lower positioning driven mechanism 43 comprises a guide rod 431 which is installed on the frame 1 and is arranged in parallel with the unwinding direction of the packaging film 104 being unwound, a guide seat 432 is installed on the guide rod 431 in a sliding manner, a driven plate 433 is installed on the guide seat 432, a positioning frame 434 is fixed on the driven plate 433, a lower positioning plate 435 matched with the upper hot pressing head 44 is fixed on the positioning frame 434, a tension spring 436 is installed at the lower end of the guide seat 432, and the other end of the tension spring 436 extends in the direction opposite to the unwinding direction of the packaging film 104 being unwound and is installed on the frame 1.
The residual edge cutting mechanism 5 comprises a mounting base body, a sliding groove 501 arranged on the mounting base body, a sliding block 502 slidably mounted in the sliding groove 501, a first pressure spring 503 which is mounted in the sliding groove 501, one end of the first pressure spring 503 is connected with the sliding groove 501, the other end of the first pressure spring 503 is fixed at one end of the sliding block 502 opposite to the sliding groove, and a toggle column 504 extends out of the sliding groove 501, two spring telescopic rods 505 hinged with the mounting base body, a connecting rod 506, one end of the connecting rod is hinged with the sliding block 502, the other end of the connecting rod is hinged with a fixed sleeve section of one of the spring telescopic rods 505, a tool apron 507 hinged with the telescopic ends of the two spring telescopic rods 505, and a cutter 508 mounted at the lower end of the tool apron 507, wherein the mounting base body, the tool apron 507 and the two spring telescopic rods 505 form a parallelogram connecting rod 506 structure; the mounting base body of the upper-layer residual edge cutting mechanism 5 is a lifting plate 424; the lower-layer residual edge cutting mechanism 5 is provided with a driven plate 433 as an installation base body, and the lower-layer residual edge cutting mechanism 5 is positioned on one side, facing the unreeling station 103, of the lower positioning plate 435; a fixed cutting plate 509 matched with the upper-layer redundant edge cutting mechanism 5 is fixed at the top of the positioning frame 434, a first rotating shaft 510 and a second rotating shaft 511 which are arranged vertically are arranged on the positioning frame 434, a torsion spring 512 and a movable cutting plate 513 matched with the lower-layer redundant edge cutting mechanism 5 are arranged on the first rotating shaft 510, one end of the torsion spring 512 is connected with the first rotating shaft 510, the other end of the torsion spring 512 is connected with the positioning frame 434, a first bevel gear 514 is arranged at the lower part of the first rotating shaft 510, a fourth gear 515 and a second bevel gear 516 are arranged on the second rotating shaft 511, and the second bevel gear 516 is meshed with the first bevel gear 514; a push block 517 matched with the positioning frame 434 in a contact manner and a rack 518 matched with the fourth gear 515 are fixed at the bottom of the push rod 46, and the push block 517 is positioned above the rack 518; the front unreeling packaging film 104 passes through the fixed cutting plate 509 and the lower positioning plate 435, and a gap 519 for the upper hot pressing head 44 to pass through is formed between the fixed cutting plate 509 and the movable cutting plate 513; two arc-shaped guide rails 520 which are arranged up and down and are respectively matched with the toggle columns 504 of the two remaining edge cutting structures are fixed on the frame 1, and the arc-shaped guide rails 520 are positioned between the initial hot-press welding station 105 and the welding completion station 106.
In order to collect the cut surplus edges of the packaging film, a collecting box 521 for collecting the surplus edges of the front unreeling packaging film 104 cut by the surplus edge cutting mechanism 5 of the lower layer is mounted on the driven plate 433, and the collecting box 521 is positioned on the side, opposite to the positioning frame 434, of the surplus edge cutting mechanism 5 of the lower layer.
And one ends of the lower carrier roller 31 and the upper press roller 32 are respectively provided with a third gear 33 which is meshed with each other, a second speed reduction stepping motor 34 is arranged on the rack 1, the output end of the second speed reduction stepping motor 34 is provided with a fifth gear 35, and the fifth gear 35 is meshed with the third gear 33 corresponding to the lower carrier roller 31.
A proximity switch 107 for detecting the packaging film 104 being unreeled is mounted on the frame 1, and the proximity switch 107 is positioned between the unreeling station 103 and the initial heat-pressure welding station 105. The proximity switch 107 is an infrared proximity switch 107, which is convenient for detecting whether the packaging film 104 being unreeled is unreeled completely.
The vacuum adsorption mechanism 45 comprises two negative pressure steel pipes 451 which are slidably arranged at the lifting end of the lifting mechanism 42 and can move in the vertical direction, the upper ends of the negative pressure steel pipes 451 are connected with a negative pressure source through hoses 452, the bottom of each negative pressure steel pipe 451 is provided with a vacuum suction cup 453, a second pressure spring 454 is sleeved on each negative pressure steel pipe 451, the lower part of each negative pressure steel pipe 451 is provided with a limit ring 455, the lifting end of the lifting mechanism 42 at the upper end of each second pressure spring 454 is abutted, and the lower end of each second pressure spring 454 is abutted with the limit ring 455; thus, the vacuum chuck 453 can press the packaging film on the fixed cutting plate 509, and meanwhile, the packaging film is not in rigid contact with the fixed cutting plate 509, so that the upper hot pressing head 44 can continuously descend, and the phenomenon that the packaging film between the vacuum chuck 453 and the upper hot pressing head 44 is too much due to the continuous descending of the vacuum chuck 453 is avoided, and the loss of too much packaging film is caused; in a natural state, the height of the suction end of the vacuum suction cup 453 is lower than the height of the upper thermal pressing head 44, and the height of the upper thermal pressing head 44 is lower than the height of the upper excess edge removing mechanism 5, so that the upper thermal pressing head 44 and the cutter 508 do not contact the packaging film when the vacuum suction cup 453 sucks the packaging film. The negative pressure steel pipe 451 is L-shaped and can be prevented from separating from the lifting end of the lifting mechanism 42, i.e., the lifting plate 424.
The working principle of the embodiment is as follows: the mechanism can be used for changing and unreeling the lower film or the upper film of the packaging machine; the second speed-reducing stepping motor 34 drives the third gear 33 to rotate through the fifth gear 515, so as to drive the lower carrier roller 31 and the upper press roller 32 to rotate, and the lower carrier roller 31 and the upper press roller 32 jointly press the packaging film 104 to be unreeled to drive the packaging film 104 to move, so as to unreel the packaging film 104;
the vacuum adsorption mechanism 45 adsorbs the packaging film 102 to be unreeled to a position right above the initial hot press welding station 105, when the unreeling of the unreeling packaging film 104 is finished, the tail end of the unreeling packaging film 104 is far away from the proximity switch 107, the proximity switch 107 cannot detect material information of the unreeling packaging film 104, and a signal is sent to a control system of the control packaging machine, and the control system is electrically connected with all electric elements of the mechanism and controls the operation of related elements; the telescopic end of the servo cylinder 421 extends downwards, under the guiding action of the vertical rod 423 and the fixed plate 422, the lifting plate 424 drives the vacuum adsorption mechanism 45 and the head end of the packaging film 102 to be unreeled to move downwards, then the vacuum suction cup 453 presses on the fixed cutting plate 509, the second pressure spring 454 compresses, and the upper hot pressing head 44 gradually approaches the lower positioning plate 435; meanwhile, the traverse stepping motor 415 outputs a preset angular displacement to drive the lead screw 411 to rotate, under the guiding action of the polished rod 412, the nut seat 413 converts the rotary motion of the lead screw 411 into linear motion, the traverse mechanism 41 drives the lifting mechanism 42, the upper hot pressing head 44, the vacuum adsorption mechanism 45, the upper residual edge removing mechanism 5 and the push rod 46 to move together, and the push rod 46 pushes the lower positioning driven mechanism 43 and the lower residual edge removing mechanism 5 to move synchronously through the pushing positioning frame 434; the upper hot pressing head 44 penetrates through the gap 519, presses the packaging film to be unreeled 102 and the packaging film to be unreeled 104 with the same moving speed on the lower positioning plate 435, and carries out hot-press welding; during the process, the toggle column 504 is in contact with the arc-shaped guide rail 520, under the limiting action of the arc-shaped guide rail 520, the arc-shaped guide rail 520 extrudes the moving toggle column 504 to move towards the inner side of the sliding groove 501, so that the sliding block 502 is pushed to move, the first pressure spring 503 is compressed, the connecting rod 506 moves along with the sliding block 502 and pushes the spring telescopic rod 505 to move, the upper layer cutter holder 507 rotates downwards to be close to the fixed cutting plate 509 to cut off the residual edge of the packaging film 102 to be unreeled, the upper layer cutter 508 is extruded after being in contact with the fixed cutting plate 509, the spring telescopic rod 505 elastically contracts to avoid interference, normal cutting operation is ensured, meanwhile, the cutting force is increased, and the vacuum suction cup 453 adsorbs the cut residual edge; similarly, the lower blade holder 507 rotates to be close to the movable cutting plate 513, the forward unreeling packaging film 104 is cut, and the cut residual edge automatically falls into the collection box 521;
then, the telescopic end of the servo cylinder 421 contracts for a short displacement, so that the upper hot-pressing head 44 rises above the fixed cutting plate 509 and does not contact the packaging film 102 to be unreeled, and the rack 518 is close to the fourth gear 515 but is not meshed therewith; then the traverse stepping motor 415 stops rotating, and when the upper hot pressing head 44 is positioned at the welding completion station 106, the packaging film to be unwound 102 and the packaging film being unwound 104 are welded together in a hot pressing mode, so that the roll changing is realized without stopping or interrupting;
then, the packaging film overturning mechanism 2 works, the first speed-reducing stepping motor 211 drives the second gear 213, the overturning shaft 201 and the overturning plate 202 to rotate 180 degrees through the first gear 212, so that the inserting shafts 203 of the two standby stations 101 and the inserting shaft 203 of the unreeling station 103 switch stations, the packaging film 102 to be unreeled is moved to the unreeling station 103, and the unreeled packaging film at the unreeling station 103 is lower than the movable cutting plate 513 at the moment;
then the traverse stepping motor 415 reversely outputs a preset angular displacement to drive the lifting mechanism 42 to move to an initial welding station, under the action of the elastic restoring force of the tension spring 436, the tension spring 436 pulls the guide holder 432 to slide on the guide rod 431, under the limiting action of the push rod 46, the guide holder 432 stably moves to the original position, when the guide holder 432 is about to reach the original position, the telescopic end of the servo cylinder 421 contracts to drive the push rod 46 and the rack 518 to ascend, the rack 518 is meshed with the fourth gear 515 when ascending, the second rotating shaft 511 rotates along with the fourth gear 515, and the first bevel gear 514, the first rotating shaft 510 and the movable cutting plate 513 are driven by the second bevel gear 516 to rotate together by approximately 90 degrees, so that the movable cutting plate 513 is separated from the packaging film 102 to be unreeled, after the movable cutting plate 513 is separated from the packaging film 102 to be unreeled, because the height of the packaging film 102 to be unreeled between the unreeling station 103 and the packaging film unreeling mechanism 3 is lower than the height of the movable cutting plate 513, therefore, the packaging film 102 to be unreeled can automatically fall below the movable cutting plate 513 after being separated from the movable cutting plate 513, so that the movable cutting plate 513 is prevented from being in long-term contact with the packaging film 102 to be unreeled; when the rack 518 rises to be separated from the fourth gear 515, the movable cutting plate 513 is restored to be in the original position and is abutted against the positioning frame 434 under the action of the elastic restoring force of the torsion spring 512, so that the next surplus edge can be conveniently cut off;
then manually detaching a set screw 205 on an inserting shaft 203 at the standby station 101 so as to detach the limiting sleeve 204, then taking out the empty cylinder, putting a new packaging film, then installing the limiting sleeve 204, and then controlling the adsorption operation through a preset program of a control system; the traverse stepping motor 415 reversely rotates to drive the lifting mechanism 42 to move to the upper side of the standby station 101, the lifting mechanism 42 drives the vacuum adsorption mechanism 45 to descend to a newly replaced packaging film and adsorb the packaging film, then the traverse stepping motor 415 positively rotates to drive the lifting mechanism 42 to move to the initial hot-press welding station 105, the telescopic end of the servo cylinder 421 extends for a section of displacement in the period, so that the vacuum adsorption mechanism 45 is close to the fixed cutting plate 509, meanwhile, the push block 517 descends to a position capable of contacting with the positioning frame 434, the rack 518 descends to a position lower than the fourth gear 515, then, the lifting mechanism 42 moves to the initial hot-press welding station 105, the push block 517 abuts against the positioning frame 434 at the moment, and the push block 517 can directly push the positioning frame 434 to move synchronously when the subsequent push rod 46 is transversely moved.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides an automatic reel unwinding mechanism that trades of packaging film for steamed egg packing, includes frame (1), its characterized in that, be equipped with in frame (1):
the packaging film turnover mechanism (2) comprises a turnover shaft (201) arranged in a rack (1) and a turnover plate (202) arranged on the turnover shaft (201), wherein the two ends of the turnover plate (202) are respectively fixed with an inserting shaft (203), one inserting shaft (203) is positioned at a standby station (101) and is inserted with a packaging film (102) to be unreeled, the other inserting shaft (203) is positioned at an unreeling station (103) and is inserted with a packaging film (104) to be unreeled, and the rack (1) is provided with a turnover driving mechanism (21) for driving the turnover shaft (201) to turn over for 180 degrees so as to enable the two inserting shafts (203) to switch stations;
the packaging film unwinding mechanism (3) comprises a lower carrier roller (31) arranged in the rack (1) and an upper pressing roller (32) positioned above the lower carrier roller (31), wherein the upper pressing roller (32) is matched with the lower carrier roller (31) to unwind the packaging film (104);
packaging film connecting mechanism (4), including install on frame (1) can follow the straight line direction that just unreels packaging film (104) unreels the direction and carry out sideslip mechanism (41) that the sideslip was held and can be followed vertical direction lift elevating system (42), install on frame (1) and be located and unreel station (103) and packaging film unwinding mechanism (3) between lower location follower (43), elevating system (42) lift end is just unreeled the unwinding direction of packaging film (104) and is installed in proper order hot pressing head (44) and be used for adsorbing the vacuum adsorption mechanism (45) of waiting to unreel packaging film (102), it is equipped with initial hot pressing welding station (105) and welding completion station (106) to unreel station (103) and packaging film unwinding mechanism (3), elevating system (42) lift end still install with lower location follower (43) and cooperate in initial hot pressing welding station (105) department with drive lower location follower (43) to fix a position (43) down ) The movable push rod (46), the upper hot pressing head (44) and the lower positioning driven mechanism (43) synchronously move and cooperate between the initial hot pressing welding station (105) and the welding completion station (106) to integrate the packaging film to be unreeled (102) and the packaging film to be unreeled (104) into a whole through hot pressing welding; the speed of the transverse moving mechanism (41) is the same as the unwinding speed of the packaging film unwinding mechanism (3) when moving;
the upper-layer redundant edge cutting mechanism (5) is positioned between the upper hot pressing head (44) and the vacuum adsorption mechanism (45) and is used for cutting redundant edges of the packaging film (102) to be unreeled; the lower-layer residual edge cutting mechanism (5) is arranged on the lower positioning driven mechanism (43) and is used for cutting the residual edge of the packaging film (104) which is being unreeled.
2. The automatic packaging film roll changing and unwinding mechanism for spiced egg packaging, as recited in claim 1, wherein the turning drive mechanism (21) comprises a first speed reducing stepping motor (211) mounted on the frame (1), a first gear (212) is mounted at an output end of the first speed reducing stepping motor (211), a second gear (213) is mounted on the turning shaft (201), and the first gear (212) is meshed with the second gear (213); the packaging film unwinding mechanism (3) further comprises a limiting sleeve (204) which is arranged on the inserting shaft (203) and used for limiting the inserting shaft (203) separated from a coiled packaging film to be far away from one end of the overturning plate (202), and the limiting sleeve (204) is fixed on the inserting shaft (203) through a set screw (205).
3. The automatic roll changing and unwinding mechanism for the packaging film of the spiced egg packaging of claim 1, wherein the traversing mechanism (41) comprises a lead screw (411) and a polished rod (412) which are installed on the frame (1), a nut seat (413) which is installed on the lead screw (411) and the polished rod (412), a traversing plate (414) which is fixed at the bottom of the nut seat (413), a traversing stepping motor (415) which is installed on the frame (1) and the output shaft of which is connected with the lead screw (411) through a coupling, and the nut seat (413) is connected with the polished rod (412) in a sliding way and is in threaded connection with the lead screw (411).
4. The automatic roll changing and unwinding mechanism for the packaging film of the spiced egg packaging of claim 3, wherein the lifting mechanism (42) comprises a servo cylinder (421) installed on the traverse plate (414), a fixed plate (422) installed on a shell of the servo cylinder (421), a vertical rod (423) slidably inserted on the fixed plate (422), and a lifting plate (424) fixedly connected with the lower end of the vertical rod (423) and the telescopic end of the servo cylinder (421).
5. The automatic packaging film reel-changing and unreeling mechanism for spiced egg packaging as defined in claim 4, wherein the lower positioning follower (43) comprises a guide rod (431) which is mounted on the frame (1) and arranged parallel to the unreeling direction of the packaging film (104), a guide seat (432) is slidably mounted on the guide rod (431), a driven plate (433) is mounted on the guide seat (432), a positioning frame (434) is fixed on the driven plate (433), a lower positioning plate (435) which is matched with the upper hot-pressing head (44) is fixed on the positioning frame (434), a tension spring (436) is mounted at the lower end of the guide seat (432), and the other end of the tension spring (436) extends in the direction opposite to the unreeling direction of the packaging film (104) and is mounted on the frame (1).
6. The automatic roll changing and unwinding mechanism for the packaging film for spiced egg packaging according to claim 5, wherein the excess edge cutting mechanism (5) comprises a mounting base body, a sliding groove (501) formed in the mounting base body, a sliding block (502) slidably mounted in the sliding groove (501), a first pressure spring (503) mounted in the sliding groove (501) and having one end connected with the sliding groove (501) and the other end connected with the sliding block (502), a toggle column (504) fixed at one end of the sliding block (502) opposite to the first pressure spring (503) and extending out of the sliding groove (501), two spring telescopic rods (505) hinged with the mounting base body, a connecting rod (506) having one end hinged with the sliding block (502) and the other end hinged with a fixed sleeve section of one of the spring telescopic rods (505), a knife block (507) hinged with the telescopic ends of the two spring telescopic rods (505), and a cutter (508) mounted at the lower end of the knife block (507), the installation base body, the tool apron (507) and the two spring telescopic rods (505) form a parallelogram connecting rod (506) structure; the installation base body of the upper-layer residual edge cutting mechanism (5) is a lifting plate (424); the mounting base body of the lower-layer residual edge cutting mechanism (5) is a driven plate (433), and the lower-layer residual edge cutting mechanism (5) is positioned on one side, facing the unreeling station (103), of the lower positioning plate (435); a fixed cutting plate (509) matched with the surplus edge cutting mechanism (5) on the upper layer is fixed at the top of the positioning frame (434), a first rotating shaft (510) which is vertically arranged and a second rotating shaft (511) which is horizontally arranged are installed on the positioning frame (434), a torsion spring (512) and a movable cutting plate (513) matched with the surplus edge cutting mechanism (5) on the lower layer are installed on the first rotating shaft (510), one end of the torsion spring (512) is connected with the first rotating shaft (510), the other end of the torsion spring is connected with the positioning frame (434), a first bevel gear (514) is installed at the lower part of the first rotating shaft (510), a fourth gear (515) and a second bevel gear (516) are installed on the second rotating shaft (511), and the second bevel gear (516) is meshed with the first bevel gear (514); a push block (517) which is used for being in contact fit with the positioning frame (434) and a rack (518) which is used for being matched with the fourth gear (515) are fixed at the bottom of the push rod (46), and the push block (517) is located above the rack (518); the forward unreeling packaging film (104) penetrates through the fixed cutting plate (509) and the lower positioning plate (435), and a gap (519) for the upper hot pressing head (44) to penetrate through is formed between the fixed cutting plate (509) and the movable cutting plate (513); two arc guide rails (520) which are arranged up and down and are respectively matched with the toggle columns (504) of the two residual edge cutting structures are fixed on the rack (1), and the arc guide rails (520) are positioned between the initial hot-press welding station (105) and the welding completion station (106).
7. The automatic packaging film reel-changing and unreeling mechanism for spiced egg packaging, which is characterized in that a collecting box (521) for collecting the surplus edge of the packaging film (104) being unreeled and cut by the surplus edge cutting mechanism (5) of the lower layer is mounted on the driven plate (433), and the collecting box (521) is positioned on one side, away from the positioning frame (434), of the surplus edge cutting mechanism (5) of the lower layer.
8. The automatic packaging film roll changing and unwinding mechanism for spiced egg packaging, as recited in claim 1, wherein a third gear (33) is mounted at each of one end of the lower supporting roller (31) and one end of the upper pressing roller (32), a second speed-reducing stepping motor (34) is mounted on the frame (1), a fifth gear (35) is mounted at an output end of the second speed-reducing stepping motor (34), and the fifth gear (35) is in meshed connection with one of the third gears (33).
9. The automatic packaging film reel-changing and unreeling mechanism for spiced egg packaging as recited in claim 1, wherein a proximity switch (107) for detecting that the packaging film (104) is being unreeled is mounted on the frame (1), and the proximity switch (107) is located between the unreeling station (103) and the initial heat-pressure welding station (105).
10. The automatic packaging film roll changing and unwinding mechanism for spiced egg packaging, according to claim 1, wherein the vacuum adsorption mechanism (45) comprises two negative pressure steel pipes (451) which are slidably mounted at the lifting end of the lifting mechanism (42) and can move in the vertical direction, the upper ends of the negative pressure steel pipes (451) are connected with a negative pressure source through hoses (452), a vacuum suction cup (453) is mounted at the bottom of each negative pressure steel pipe (451), a second pressure spring (454) is sleeved on each negative pressure steel pipe (451), a limiting ring (455) is mounted at the lower part of each negative pressure steel pipe (451), the lifting ends of the lifting mechanism (42) at the upper ends of the second pressure springs (454) are abutted, and the lower ends of the second pressure springs (454) are abutted against the limiting ring (455); in a natural state, the height of the suction end of the vacuum suction cup (453) is lower than that of the upper hot pressing head (44), and the height of the upper hot pressing head (44) is lower than that of the upper excess edge cutting mechanism (5).
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| CN202110840856.XA CN113734856B (en) | 2021-07-26 | 2021-07-26 | Automatic roll changing and unreeling mechanism for packaging films for marinated eggs |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110840856.XA CN113734856B (en) | 2021-07-26 | 2021-07-26 | Automatic roll changing and unreeling mechanism for packaging films for marinated eggs |
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| CN113734856B CN113734856B (en) | 2023-05-30 |
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| CN115367177A (en) * | 2022-09-13 | 2022-11-22 | 稻兴电子科技（厦门）有限公司 | Automatic screw packaging machine |
| CN117142209A (en) * | 2023-10-27 | 2023-12-01 | 广东美登新材料科技有限公司 | Follow-up unreeling device |
| CN117360851A (en) * | 2023-12-07 | 2024-01-09 | 山东蓝天家具有限公司 | Composite mattress tectorial membrane equipment for packing |
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| CN113734856B (en) | 2023-05-30 |
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