CN108099267B - Production equipment for plastic vest bag - Google Patents
Production equipment for plastic vest bag Download PDFInfo
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- CN108099267B CN108099267B CN201711461375.8A CN201711461375A CN108099267B CN 108099267 B CN108099267 B CN 108099267B CN 201711461375 A CN201711461375 A CN 201711461375A CN 108099267 B CN108099267 B CN 108099267B
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- 239000004033 plastic Substances 0.000 title claims abstract description 74
- 229920003023 plastic Polymers 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 163
- 238000007789 sealing Methods 0.000 claims abstract description 149
- 230000001360 synchronised effect Effects 0.000 claims abstract description 35
- 238000005520 cutting process Methods 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 73
- 238000003825 pressing Methods 0.000 claims description 44
- 238000010009 beating Methods 0.000 claims description 42
- 230000007704 transition Effects 0.000 claims description 23
- 238000007639 printing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 abstract description 34
- 229920006255 plastic film Polymers 0.000 abstract description 34
- 238000000034 method Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011091 composite packaging material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to production equipment of a plastic vest bag, which mainly comprises a driving discharging mechanism, a feeding mechanism, a synchronous heat-sealing mechanism, a die-cutting mechanism and a bag folding mechanism, wherein the synchronous heat-sealing mechanism is provided with a driving shaft and a chain group, the driving shaft is provided with a heat-sealing cutter, and the chain group is provided with a heat-sealing base matched with the heat-sealing cutter. When plastic film passes through synchronous heat seal mechanism, the motor of drive assembly passes through gearbox drive driving shaft and rotates, and the driving shaft passes through driving sprocket and driven sprocket drive chain group and rotate, and driving shaft and chain group are at the rotation in-process, and the heat seal sword and the heat seal base on it can be close gradually to pressfitting in slide kicking block below, thereby to the plastic film heat-seal in the conveying, after the heat seal, heat seal sword and heat seal base separate gradually. The heat sealing work and the conveying work of the feeding work of the heat sealing mechanism can be synchronously carried out, so that the production efficiency of plastic bags is improved.
Description
Technical Field
The invention relates to plastic bag production equipment, in particular to plastic vest bag production equipment.
Background
Plastic bags are widely used as daily necessities by people, such as shopping bags in supermarkets, garbage bags, fresh-keeping bags and the like. The plastic bag is generally formed by processing a prepared plastic film through plastic bag production equipment, and the plastic bag can be prepared by sealing, cutting and other operations on the plastic film when the plastic bag production equipment is used for processing. One end of the plastic bag is a bag opening, and the other end is necessarily a seal, so that the plastic bag becomes a plastic bag bottom for containing articles.
The sealing of the plastic bag is generally realized by adopting heat sealing, which is the most common and practical bag making mode in the application of re-composite packaging materials, and the sealing position of the plastic bag is heated to be in a viscous flow state by utilizing various external conditions (such as electric heating, high-frequency voltage or ultrasonic wave and the like), and two layers of diaphragms are fused into a whole by means of certain pressure, and certain strength is maintained after cooling.
At present, in plastic bag production equipment, the working mode of a heat sealing mechanism is as follows: and when the conveying length of the plastic film reaches the length of the plastic bag, the conveying mechanism pauses conveying, and the heat sealing mechanism heats and presses the plastic film to form the heat seal of the plastic bag. After the heat sealing is finished, the conveying mechanism starts working again to convey the plastic film, when the conveying length of the plastic film reaches the length of the plastic bag again, the conveying mechanism stops conveying again, and the heat sealing mechanism performs heat sealing work, so that the circulation is realized, and the continuous heat sealing work of the plastic bag is realized.
When the existing plastic bag heat sealing mechanism performs heat sealing work, the conveying mechanism must stop conveying, that is, the heat sealing mechanism and the conveying mechanism cannot be synchronized, so that the production efficiency of plastic bags is low.
In addition, after the die cutting mechanism of the plastic bag production equipment cuts the plastic bag, a bag opening of the plastic bag is formed, and meanwhile, a stub bar is also generated. At present, no mechanism specially treating plastic bag stub bars exists in plastic bag production equipment, and only any plastic bag stub bars fall onto the ground or other work tables, so that the sanitation environment of a plastic bag production workshop is poor, and under the condition of wind, the plastic bags can float everywhere, and the normal work of the plastic bag production equipment can be influenced.
Disclosure of Invention
The invention aims to provide production equipment for plastic vest bags, and the heat sealing mechanism on the production equipment can heat-seal the plastic bags under the condition that a conveying mechanism works normally, so that the production efficiency of the production equipment is improved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the production equipment of the plastic vest bag comprises an active discharging mechanism, a feeding mechanism, a synchronous heat-sealing mechanism, a die-cutting mechanism and a bag folding mechanism, wherein the active discharging mechanism is arranged in front of the feeding mechanism, the synchronous heat-sealing mechanism and the die-cutting mechanism are sequentially arranged behind the feeding mechanism, and the bag folding mechanism is arranged below or behind the die-cutting mechanism; the synchronous heat sealing mechanism comprises a frame, a driving assembly, a driven assembly and a transmission assembly, wherein the frame comprises two side plates and a fixing rod connected between the two side plates; the driving assembly comprises a motor, a reduction gearbox and a driving shaft, wherein the motor is arranged on the outer side of one side plate and is connected with the driving shaft through the reduction gearbox; the driving shaft is connected between the two side plates, two driving chain wheels are arranged on the driving shaft, and the two driving chain wheels are respectively close to the inner side surfaces of the two side plates; a first transition roller and a heat sealing cutter are arranged between the two driving chain wheels, and a heating rod or a heating sheet is arranged on the heat sealing cutter; the driven assembly comprises driven chain wheels and at least three driven wheel fixing rods, the driven wheel fixing rods are connected between the two side plates, each driven wheel fixing rod is provided with two driven chain wheels, and the two driven chain wheels are respectively close to the inner side surfaces of the two side plates; the transmission assembly comprises two groups of chain groups which are connected to the driven sprocket and meshed with the driven sprocket, the chain groups are meshed with the driving sprocket, and a heat sealing base matched with the heat sealing knife is connected between the two groups of chain groups.
The synchronous heat-sealing mechanism further comprises a pressing assembly, the pressing assembly comprises a sliding seat top block and a sliding seat fixing rod, the sliding seat fixing rod is connected between the two side plates, the sliding seat top block is fixed on the sliding seat fixing rod, and the sliding seat top block is arranged above the driving shaft in an arch shape.
A groove is formed at the position of the heat sealing base corresponding to the sliding seat top block, and a pulley capable of sliding on the sliding seat top block is arranged in the groove.
The synchronous heat sealing mechanism further comprises a chain tensioning assembly, the chain tensioning assembly comprises a tensioning cylinder, a cylinder connecting rod, a tensioning lever and a pressing rod, the tensioning cylinder is arranged between the two side plates through a cylinder fixing rod, and two ends of the cylinder fixing rod are respectively connected to the two side plates; the tensioning lever is arranged on the inner side surfaces of the two side plates, the middle part of the tensioning lever is pivoted on the side plates, one end of the tensioning lever is connected with the cylinder connecting rod, and the other end of the tensioning lever is connected with the pressing rod; the cylinder connecting rod is connected with tensioning cylinder cooperation, and the both ends of compressing tightly the pole are equipped with the pinch roller, and two pinch rollers mesh with two group chain groups respectively.
The first transition roller is arranged on the periphery of the driving shaft and is connected between the two driving sprockets through a sprocket connecting seat.
The heat sealing cutter is fixed on the periphery of the driving shaft through a heat sealing cutter fixing seat, the heat sealing cutter fixing seat comprises a first heat sealing cutter fixing seat and a second heat sealing cutter fixing seat, the first heat sealing cutter fixing seat is arranged along the axial direction of the driving shaft, and two ends of the first heat sealing cutter fixing seat are connected with a driving sprocket through sprocket connecting seats; one end of the second heat sealing knife fixing seat is connected with the heat sealing knife, and the other end of the second heat sealing knife fixing seat is connected with the first heat sealing knife fixing seat through an adjusting screw.
The production equipment further comprises a stub bar beating mechanism, wherein the stub bar beating mechanism is arranged below the die cutting mechanism; the stub bar beating mechanism comprises a beating component, wherein the beating component comprises a fixed rod, sliding rods, a base plate, a beating cylinder, a sliding seat and a hot needle, at least two sliding rods are connected to the fixed rod, one end of each sliding rod is connected with the fixed rod, and the other end of each sliding rod is connected with a cushion block; a sliding seat, a pressing plate and a hot needle are arranged between the fixed rod and the backing plate, two ends of the sliding seat are connected to the sliding rod through bearings, the pressing plate is connected to the sliding seat through a pressing plate sliding rod, and an elastic piece is arranged between the pressing plate and the sliding seat; the pressing plate and the backing plate are respectively provided with a perforation through which a heat supply needle passes, and the heat supply needle is connected to the sliding seat and is positioned between the pressing plate and the sliding seat; the material beating cylinder is connected with the sliding seat and is arranged on the fixed rod.
The stub bar beating mechanism further comprises a material receiving assembly, the material receiving assembly comprises two material receiving side plates, a material receiving motor, a material receiving roller and a second transition roller, the material receiving roller is connected between the two material receiving side plates, one end of the material receiving roller is connected with the material receiving motor, and the second transition roller is arranged above the material receiving roller.
The material receiving assembly further comprises a material receiving swing rod, a material receiving rotating shaft and a material receiving cylinder, wherein the material receiving swing rod is arranged on the inner side surface of the material receiving side plate, one end of the material receiving swing rod is connected with the second transition roller, and the other end of the material receiving swing rod is connected with the material receiving cylinder; the material receiving rotating shaft is connected between the two material receiving side plates, and two ends of the material receiving rotating shaft penetrate through the material receiving swing rods and are respectively fixed on the two material receiving side plates.
The elastic piece is a spring, and the spring is sleeved outside the pressing plate sliding rod.
The production equipment further comprises a stub bar winding mechanism.
The production equipment further comprises a film tensioning mechanism and a printing color tracking mechanism, wherein the film tensioning mechanism is arranged between the active discharging mechanism and the feeding mechanism, and the printing color tracking mechanism is arranged between the synchronous heat sealing mechanism and the die cutting mechanism.
After the scheme is adopted, the plastic vest bag mainly comprises a driving discharging mechanism, a feeding mechanism, a synchronous heat-sealing mechanism, a die-cutting mechanism and a bag folding mechanism, wherein the synchronous heat-sealing mechanism is provided with a driving shaft and a chain group, the driving shaft is provided with a heat-sealing cutter, and the chain group is provided with a heat-sealing base matched with the heat-sealing cutter. Under the action of the feeding mechanism, the plastic film continuously enters the synchronous heat sealing mechanism and passes through the space between the driving shaft and the chain group of the synchronous heat sealing mechanism. When plastic film passes through synchronous heat seal mechanism, the motor of drive assembly passes through gearbox drive driving shaft and rotates, and the driving shaft passes through driving sprocket and driven sprocket drive chain group and rotate, and driving shaft and chain group are at the rotation in-process, and the heat seal sword and the heat seal base on it can be close gradually to pressfitting in slide kicking block below, thereby to the plastic film heat-seal in the conveying, after the heat seal, heat seal sword and heat seal base separate gradually. The driving shaft and the driven wheel fixing rod continue to rotate, and when the driving shaft is in heat sealing connection with the heat sealing base on the chain group for the next time, the plastic film is subjected to the next heat sealing. The synchronous heat sealing mechanism can enable heat sealing work to be carried out in the plastic film conveying process, namely, heat sealing work of the heat sealing mechanism and conveying work of feeding work can be carried out synchronously, so that production efficiency of plastic bags is improved.
In addition, the invention also adds a stub bar beating mechanism, and the stub bar beating mechanism comprises a beating component. When the plastic film passes through the die cutting mechanism and then is cut, the stub bar passes through the space between the pressing plate and the backing plate of the material beating assembly along with the plastic bag, and when the stub bar enters the space between the pressing plate and the backing plate, the material beating cylinder pushes the sliding seat, the sliding seat slides on the sliding rod and drives the pressing plate and the hot needle to move towards the backing plate. The beating cylinder continues to promote the slide for the clamp plate is pressed on the backing plate, and the elastic component on the slide compression clamp plate slide bar of slide continues to slide to the backing plate direction, drives the hot needle on the slide and passes clamp plate and backing plate, and the stub bar heat-seal of current stub bar and last plastic bag is in the same place, thereby realizes linking together each stub bar of dispersion, avoids the stub bar of dispersion to pour out the disorder and waft, thereby has improved the operational environment that the stub bar influences the workshop.
Drawings
FIG. 1 is a schematic perspective view of a production facility of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic perspective view of a synchronous heat seal mechanism according to the present invention;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a side view of FIG. 3;
FIG. 6 is a schematic diagram of the active components of the synchronous heat seal mechanism of the present invention;
FIG. 7 is a cross-sectional view of FIG. 6;
FIG. 8 is a schematic perspective view of a head assembly of the present invention;
fig. 9 is a front view of fig. 8;
FIG. 10 is a cross-sectional view of FIG. 8;
FIG. 11 is a schematic view of a receiving assembly of the stub bar beating mechanism of the present invention;
FIG. 12 is a cross-sectional view of FIG. 11;
FIG. 13 is a top view of FIG. 11;
fig. 14 is a side view of fig. 11.
Detailed Description
The invention discloses production equipment for a plastic vest bag, which comprises an active discharging mechanism 1, a film tensioning mechanism 2, a feeding mechanism 3, a synchronous heat sealing mechanism 4, a printing color tracking mechanism 5, a die cutting mechanism 6, a bag folding mechanism 7, a stub bar beating mechanism 8 and a stub bar winding mechanism 9.
The active discharging mechanism 1, the film tensioning mechanism 2, the feeding mechanism 3, the synchronous heat sealing mechanism 4, the printing color tracking mechanism 5, the die cutting mechanism 6, the bag folding mechanism 7, the stub bar beating mechanism 8 and the stub bar winding mechanism 9 are arranged into different stations according to the production process. Specifically, the active discharging mechanism 1 is arranged in front of the feeding mechanism 3, the film tensioning mechanism 2 is arranged between the active discharging mechanism 1 and the feeding mechanism 3, the synchronous heat sealing mechanism 4, the printing color tracking mechanism 5 and the die cutting mechanism 6 are sequentially arranged behind the feeding mechanism, the stub bar beating mechanism 8 is arranged below the die cutting mechanism 6, and the bag folding mechanism 7 is arranged below or behind the stub bar beating mechanism 8.
The production equipment adopting the structure has the following process flow for producing the plastic vest bag:
discharging: discharging is carried out by the active discharging mechanism 1 along with the plastic film on the film roll so that the plastic film can be conveyed into the synchronous heat sealing mechanism 4 through the feeding mechanism 3; a film tensioning mechanism 2 is arranged between the active discharging mechanism 1 and the feeding mechanism 3 and is used for balancing the discharging speed of the active discharging mechanism 1 and the feeding speed of the feeding mechanism 3, and meanwhile, the plastic film can be ensured to keep a proper tension.
Heat sealing: the plastic film fed into the synchronous heat-sealing mechanism 4 is heat-sealed by adopting the synchronous heat-sealing mechanism 4 to form a heat seal of the plastic bag, and after the heat sealing is finished, the plastic film is conveyed into the printing color tracking mechanism 5;
printing: the surface of the plastic film is printed by the printing color tracking mechanism 5, so that information such as patterns, characters and the like required by a user is formed on the plastic bag.
Cutting and dotting: cutting the plastic film by a die cutting mechanism 6 so as to form a plastic vest bag; and meanwhile, the plastic film is subjected to spot breaking treatment.
Beating and rolling the stub bar: the scattered stub bars formed by cutting are connected together by a stub bar beating mechanism 8, and the connected stub bars are wound by a stub bar winding mechanism 9.
Folding: the produced plastic vest bag is folded together by adopting a bag folding mechanism 7.
The synchronous heat sealing mechanism 4 comprises a frame, a driving component, a driven component and a transmission component.
The frame includes two side plates 411 and a fixing rod 412 connected between the two side plates 411, wherein one end of the fixing rod 412 is fixed on one side plate 411, and the other end is fixed on the other side plate 411, so that a space for accommodating other components can be formed between the two side plates 411.
The driving assembly comprises a motor 421, a reduction gearbox 422 and a driving shaft 423, wherein the motor 421 is arranged on the outer side of one of the side plates 411, is connected with one end of the driving shaft 423 through the reduction gearbox 422, and drives the driving shaft 423 to rotate; the driving shaft 423 is connected between the two side plates 411, one end of the driving shaft is connected with one side plate 411 through a bearing, and the other end is connected with the other side plate 411 through a bearing. The driving shaft 423 is provided with two driving chain wheels 424, and the two driving chain wheels 424 are respectively close to the inner side surfaces of the two side plates 411; a first transition roller 425 and a heat sealing knife 426 are arranged between the two driving chain wheels 424 along the axial direction of the driving shaft 423, and a heating rod 427 or a heating sheet is arranged on the side surface of the heat sealing knife 426 close to the driving chain wheels 424. The first transition rollers 425 are uniformly distributed on the periphery of the driving shaft 23, two ends of the first transition rollers are connected to the driving sprocket 424 through sprocket connecting seats 4241, and the sprocket connecting seats 424 are connected to the inner side surface of the driving sprocket 424. The heat seal knife 426 is fixed on the periphery of the driving shaft 423 through a heat seal knife fixing seat, the heat seal knife fixing seat comprises a first heat seal knife fixing seat 4261 and a second heat seal knife fixing seat 4262, the first heat seal knife fixing seat 4261 is arranged along the axial direction of the driving shaft 423, two ends of the first heat seal knife fixing seat 4261 are connected to the sprocket connecting seat 4241, one end of the second heat seal knife fixing seat 4262 is connected with the heat seal knife 426 through a screw, and the other end of the second heat seal knife fixing seat 4262 is connected with the first heat seal knife fixing seat 4261 through an adjusting screw 4263. The distance between the first fixing seat 4261 and the second fixing seat 4262 can be adjusted by adjusting the screw 4263, so as to adjust the height of the heat seal knife 426 relative to the driving shaft 423.
The first transition roller 425 is for transferring the plastic film and the heat sealing knife 426 is for performing a heat sealing work of the plastic film to form a heat seal of the plastic bag, so that the number of the heat sealing knife 426 is related to the length of the plastic bag. The number of the heat sealing blades 426 may be increased when the length of the produced plastic bag is short, and the number of the heat sealing blades 426 may be decreased when the length of the produced plastic bag is short. When the number of the heat sealing cutters 426 is more than two, the heat sealing cutters 426 are uniformly distributed on the periphery of the driving shaft 423, so that the length of the plastic bag on the same production line is ensured to be consistent. In the embodiment disclosed by the invention, the number of the heat sealing cutters 426 is two, and the two heat sealing cutters 426 and the driving shaft 423 are arranged on the same straight line.
The driven assembly includes at least three driven wheel fixing rods 431, wherein the driven wheel fixing rods 431 are connected between two side plates 411, one end of each driven wheel fixing rod 431 is connected with one side plate 411, the other end of each driven wheel fixing rod 431 is connected with the other side plate 411, and the driven wheel fixing rods 431 are parallel to the driving shaft 423. Each driven wheel fixing rod 431 is provided with two driven chain wheels 432, and the driven chain wheels 432 are close to the inner side surface of the side plate 411 and correspond to the driving chain wheels 424.
In the disclosed embodiment of the present invention, the driven assembly includes four driven wheel fixing bars 431, wherein two driven wheel fixing bars 431 are connected to the upper portion of the side plate 411, the other two driven wheel fixing bars 432 are connected to the lower portion of the side plate 411, and the driven wheel fixing bars 431 are respectively located at both sides of the driving shaft 423. The four driven wheel fixing rods 431 are parallel to the driving shaft 423, and the connecting lines between the connecting points of the four driven wheel fixing rods 431 on the side plate 411 form a rectangular structure.
The drive assembly includes two chain sets 441, the chain sets 441 being coupled to the driven sprocket 432 and engaged with the drive sprocket 424. When the driving sprocket 424 rotates, the driven sprocket 432 is rotated by the chain assembly 441. A heat sealing base 442 is connected between the two chain groups 441, and the heat sealing base 442 cooperates with the heat sealing knife 426 to realize heat sealing of the plastic film. The heat seal base 442 is fixed to one chain set 441 at one end and to the other chain set 441 at the other end, and the heat seal base 442 moves along with the chain set 441.
In order to ensure the heat sealing quality of the plastic film by the heat sealing knife 426 and the heat sealing base 442, the heat sealing mechanism of the present invention further comprises a pressing assembly. The pressing assembly comprises a slide top block 451 and a slide fixing rod 452, wherein the slide fixing rod 452 is connected between the two side plates 411, one end of the slide fixing rod is connected with one side plate 411, and the other end is connected with the other side plate 411. The sliding base top block 451 is connected to the sliding base fixing rod 452, the sliding base top block 451 is arranged above the driving shaft 423 in an arch shape, and the distance between the lower end surface of the sliding base top block 451 and the heat sealing knife 426 is slightly larger than the height of the heat sealing base 442. When the heat sealing base 442 moves above the driving shaft 423 along with the chain group 441 and contacts with the heat sealing knife 426 on the driving shaft 423, the slide base top block 451 will always press against the upper end of the heat sealing base 442, so that the close fit between the heat sealing base 442 and the heat sealing knife 426 can be ensured, and the heat sealing quality of the plastic film is ensured.
In order to reduce friction between the heat seal base 442 and the slider top piece 451, a groove is formed in the heat seal base 442 at a position corresponding to the slider top piece 451, and a pulley is disposed in the groove and can slide on the slider top piece 451. And when the number of the sliding seat top blocks 451 is more than two, the pressing effect on the heat sealing base 442 is better.
The working principle of the invention is as follows:
under the action of the conveying mechanism, the plastic film continuously enters the synchronous heat-sealing mechanism, passes through the space between the driving shaft 423 and the chain group 441 of the synchronous heat-sealing mechanism, and then enters the next processing mechanism for producing plastic bags. When the plastic film is conveyed, that is, the plastic film passes between the driving shaft 423 and the chain group 441, the motor 421 of the driving assembly drives the driving shaft 423 to rotate through the reduction gearbox 422, the driving sprocket 424 on the driving shaft 423 rotates along with the driving shaft 423, and the driving sprocket 424 drives the chain group 441 to drive on the driven sprocket 432. When the heat sealing knife 426 on the driving shaft 423 rotates to a position contacting the chain group 441, the heat sealing base 442 on the chain group 441 also rotates to the position, the driving shaft 423 continues to rotate, the heat sealing knife 426 and the heat sealing base 442 gradually approach and press-fit under the sliding seat top block 451, thereby heat-sealing the plastic film in transmission, after heat sealing, the heat sealing knife 426 and the heat sealing base 442 are gradually separated, and the heat-sealed plastic film enters the next processing mechanism. The driving shaft 423 and the chain group 441 continue to rotate, and when the heat sealing knife 426 on the driving shaft 423 and the heat sealing base 442 on the chain group 441 are in contact and pressed next time, the plastic film is heat sealed next time. The heat-sealing length of the plastic bag is related to the meeting time of the heat-sealing knife and the heat-sealing base, and the length of the plastic bag can be adjusted by adjusting the rotation speed of the driving shaft 23 and the transfer speed of the transfer mechanism in addition to the number of the heat-sealing knife 426 and the heat-sealing base 442.
The heat sealing knife 426 and the heat sealing base 442 start to press at the heat sealing starting point and start to separate at the heat sealing ending point, and the included angle between the heat sealing starting point and the connecting line of the heat sealing ending point and the center of the driving shaft can be 90 degrees, so that the heat sealing time between the heat sealing knife 426 and the heat sealing base 442 is increased, the heat sealing quality is ensured, and meanwhile, the production efficiency is improved.
By using the synchronous heat sealing mechanism with the structure, heat sealing work can be carried out in the plastic film conveying process, so that the heat sealing work of the heat sealing mechanism and the conveying work of the conveying mechanism can be synchronously carried out, and the production efficiency of plastic bags is improved.
In order to ensure the stability, safety and reliability of the transmission assembly, the synchronous heat sealing mechanism further comprises a chain tensioning assembly, wherein the chain tensioning assembly can adjust the tightness of the chain group, prevent the chain from loosening and falling off, and ensure the normal work of the chain group; the abrasion of the chain wheel and the chain is reduced, and the service life of the chain wheel and the chain is prolonged.
The chain tensioning assembly comprises a tensioning cylinder 461, a cylinder connecting rod 463, a tensioning lever 464 and a pressing rod 465, wherein the tensioning cylinder 461 is arranged between the two side plates 411 through a cylinder fixing rod 462, and two ends of the cylinder fixing rod 462 are respectively connected to the two side plates 411; the tensioning lever 464 is arranged on the inner side surfaces of the two side plates 411, the middle part of the tensioning lever 464 is pivoted on the side plates 411, one end of the tensioning lever 464 is connected with the cylinder connecting rod 463, and the other end is connected with the pressing rod 465; the cylinder connecting rod 463 is cooperatively connected with the tensioning cylinder 461, and two ends of the pressing rod 465 are provided with pressing wheels 466, and the two pressing wheels 466 are respectively meshed with the two chain groups 441. When the chain group 441 is loosened, the tensioning cylinder 461 lifts the cylinder connecting rod 463 upwards, so that one end of the tensioning lever 464 connected with the cylinder connecting rod 463 is lifted upwards, and therefore one end of the tensioning lever 464 connected with the pressing rod 465 is pressed downwards, and the pressing wheels 466 at two ends of the pressing rod 465 also press the chain group 441 downwards, so that the tension degree of the chain group 441 is improved, the chain group 441 is prevented from loosening, and the transmission effect of the chain group 441 is guaranteed. When the tension of the chain set 441 is over-driven, the wear among the chain set 441, the driven sprocket 432 and the driving sprocket 424 is serious, at this time, the tensioning cylinder 461 is adjusted to make the piston rod of the tensioning cylinder 461 contract downward, the chain set 441 lifts the compression wheel 466 upward under the action of the tensioning force of the chain set 441, so that one end of the tensioning lever 464 connected with the compression rod 465 lifts upward, and the other end of the tensioning lever 464 moves downward to press against the tensioning cylinder 461, thereby reducing the tension of the chain set 441 and reducing the loss between the chain set 441 and the driven sprocket 432 and the driving sprocket 424.
Above-mentioned stub bar beating mechanism 8, it includes beating material subassembly 81 and receipts material subassembly 82, and wherein, beating material subassembly 81 is used for linking together the stub bar of each plastic bag, and receipts material subassembly 82 is used for conveying the stub bar that links together, avoids the stub bar to fly in disorder everywhere, and influences the operational environment of workshop.
The material beating assembly 81 comprises a fixing rod 811, a sliding rod 812, a base plate 813, a material beating cylinder 817, a sliding seat 814 and a hot needle 816, wherein two ends of the fixing rod 811 are connected with fixing blocks 818, and the material beating assembly can be fixed on a frame of plastic bag production equipment through the fixing blocks 818, so that the material beating assembly is matched with other mechanisms for use. The fixing rod 811 is connected with at least two slide bars 812, one end of each slide bar 812 is connected with the fixing rod 811, and the other end is connected with a backing plate 813. A slide 814, a pressing plate 815 and a hot needle 816 are arranged between the fixing rod 811 and the base plate 813, both ends of the slide 814 are connected to the slide rod 812 through bearings, the pressing plate 815 is connected to the slide 814 through a pressing plate slide rod 8151, one end of the pressing plate slide rod 8151 is connected to the slide 814 through bearings, and the other end is connected to the pressing plate 815. A spring 8152 is sleeved outside the platen slide bar 8151, and the spring 8152 can provide restoring force for the slide. Of course, the spring 8152 may be modified with other elastic members as long as it can provide restoring force to the slider. A perforation is provided in both the pressure plate 815 and the backing plate 813 to allow the heat pin 816 to pass through. The hot needle 816 is located between the platen 815 and the sled 814, which is coupled to the sled 814 through a hot needle mount 8161. The material beating cylinder 817 is fixed on the fixed rod 811, and is connected with the sliding seat 814 through a cylinder fixed block 8171 and an adjusting block 8172, the cylinder fixed block 8171 is connected with the sliding seat 814, one end of the adjusting block 8172 is connected with the cylinder fixed block 8171, and the other end is connected with the material beating cylinder 817.
The material receiving assembly 82 comprises two material receiving side plates 824, a material receiving motor 821, a material receiving roller 822, a second transition roller 823, a material receiving swing rod 826, a material receiving rotating shaft 827 and a material receiving cylinder 825, wherein the material receiving roller 822 is connected between the two material receiving side plates 824, and one end of the material receiving roller 822 is connected with the material receiving motor 821. The second transition roller 823 is arranged above the receiving roller 822, the receiving swing rod 826 is arranged on the inner side surface of the receiving side plate 824, one end of the receiving swing rod 826 is connected with the second transition roller 823, and the other end of the receiving swing rod 826 is connected with the receiving cylinder 825 through the receiving connector 828. The material receiving rotary shaft 827 is connected between the two material receiving side plates 824, and two ends of the material receiving rotary shaft 827 pass through the material receiving swing rod 826 and are respectively fixed on the two material receiving side plates 824. The distance between the second transition roller 823 and the receiving roller 822 can be adjusted through the receiving cylinder 825, the receiving swing rod 826 is of a lever structure taking the connection point of the receiving swing rod 826 and the receiving rotating shaft 827 as a fulcrum, when the piston rod of the receiving cylinder 825 is contracted, one end of the receiving swing rod 826 connected with the receiving cylinder 825 swings downwards, so that one end of the receiving swing rod 826 connected with the second transition roller 823 is lifted upwards, and the distance between the second transition roller 823 and the receiving roller 822 is increased; when the receiving cylinder 825 pushes the piston rod, the end of the receiving swing link 826 connected to the receiving cylinder 825 is lifted up, so that the end of the receiving swing link 26 connected to the second transition roller 823 is pressed down, and the distance between the second transition roller 823 and the receiving roller 822 is reduced.
The working principle of the invention is as follows: after the plastic bag is cut, the material head is connected with the plastic bag through a point broken line, and the plastic bag is sent; under the action of the feeding mechanism, the plastic bags enter the next production mechanism through the material beating assembly 81. Since the stub bar is also connected to the plastic bag, the stub bar will enter the knockout assembly 81 along with the plastic bag. As the stub bar enters the blanking assembly 81, it passes between the platen 815 and the backing plate 813 of the blanking assembly 81. When the stub bar enters between the pressing plate 815 and the backing plate 813, the material beating cylinder 817 pushes the sliding seat 814, the sliding seat 814 slides on the sliding rod 812, and drives the pressing plate 815 and the hot needle 816 to move toward the backing plate 813. The knockout cylinder 817 continues to push the slide base 814 so that the press plate 815 presses against the base plate 813, and the slide base 814 compresses the spring 8152 on the press plate slide bar 8151 and continues to slide toward the base plate 813, thereby driving the hot pin 816 on the slide base 814 to pass through the press plate 815 and the base plate 813, and heat-sealing the current stub bar and the stub bar of the last plastic bag together. The stub bar of the last plastic bag passes through the space between the receiving roller 822 and the second transition roller 823 of the receiving assembly, and under the action of the receiving roller 822, the stub bar is gradually conveyed into the stub bar winder for winding. Under the action of the take-up assembly, a portion of the current stub bar leaves between the backing plate 813 and the pressure plate 815, and another portion remains between the pressure plate 815 and the backing plate 813. At this time, the stub bar of the next plastic bag will come between the pressing plate 815 and the backing plate 813 along with the plastic bag, and under the action of the material beating cylinder 817, the thermal needle 816 on the sliding seat 814 will heat-seal the next stub bar and the current stub bar together, and the material receiving assembly 82 will continuously transfer the stub bar, and gradually send the stub bar into the stub bar winding mechanism 9 for winding. The stub bar beating mechanism 8 with the structure can connect the scattered stub bars together, thereby avoiding the influence on the environmental sanitation of a workshop caused by the random dumping of the stub bars.
The foregoing embodiments of the present invention are not intended to limit the technical scope of the present invention, and therefore, any minor modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical proposal of the present invention.
Claims (8)
1. The utility model provides a production facility of plastics undershirt bag which characterized in that: the automatic feeding device comprises an active discharging mechanism, a feeding mechanism, a synchronous heat-sealing mechanism, a die-cutting mechanism and a bag folding mechanism, wherein the active discharging mechanism is arranged in front of the feeding mechanism, the synchronous heat-sealing mechanism and the die-cutting mechanism are sequentially arranged behind the feeding mechanism, and the bag folding mechanism is arranged below or behind the die-cutting mechanism; the synchronous heat sealing mechanism comprises a frame, a driving assembly, a driven assembly and a transmission assembly, wherein the frame comprises two side plates and a fixing rod connected between the two side plates; the driving assembly comprises a motor, a reduction gearbox and a driving shaft, wherein the motor is arranged on the outer side of one side plate and is connected with the driving shaft through the reduction gearbox; the driving shaft is connected between the two side plates, two driving chain wheels are arranged on the driving shaft, and the two driving chain wheels are respectively close to the inner side surfaces of the two side plates; a first transition roller and a heat sealing cutter are arranged between the two driving chain wheels, and a heating rod or a heating sheet is arranged on the heat sealing cutter; the driven assembly comprises driven chain wheels and at least three driven wheel fixing rods, the driven wheel fixing rods are connected between the two side plates, each driven wheel fixing rod is provided with two driven chain wheels, and the two driven chain wheels are respectively close to the inner side surfaces of the two side plates; the transmission assembly comprises two groups of chain groups which are connected to the driven sprocket and meshed with the driven sprocket, the chain groups are meshed with the driving sprocket, and a heat sealing base matched with the heat sealing cutter is connected between the two groups of chain groups;
the synchronous heat sealing mechanism further comprises a pressing assembly, the pressing assembly comprises a sliding seat top block and a sliding seat fixing rod, the sliding seat fixing rod is connected between the two side plates, the sliding seat top block is fixed on the sliding seat fixing rod, and the sliding seat top block is arranged above the driving shaft in an arch shape;
the production equipment further comprises a stub bar beating mechanism, wherein the stub bar beating mechanism is arranged below the die cutting mechanism; the stub bar beating mechanism comprises a beating component, wherein the beating component comprises a fixed rod, sliding rods, a base plate, a beating cylinder, a sliding seat and a hot needle, at least two sliding rods are connected to the fixed rod, one end of each sliding rod is connected with the fixed rod, and the other end of each sliding rod is connected with a cushion block; a sliding seat, a pressing plate and a hot needle are arranged between the fixed rod and the backing plate, two ends of the sliding seat are connected to the sliding rod through bearings, the pressing plate is connected to the sliding seat through a pressing plate sliding rod, and an elastic piece is arranged between the pressing plate and the sliding seat; the pressing plate and the backing plate are respectively provided with a perforation through which a heat supply needle passes, and the heat supply needle is connected to the sliding seat and is positioned between the pressing plate and the sliding seat; the material beating cylinder is connected with the sliding seat and is arranged on the fixed rod;
the stub bar beating mechanism further comprises a receiving assembly, the receiving assembly comprises two receiving side plates, a receiving motor, a receiving roller and a second transition roller, the receiving roller is connected between the two receiving side plates, one end of the receiving roller is connected with the receiving motor, and the second transition roller is arranged above the receiving roller;
the material receiving assembly further comprises a material receiving swing rod, a material receiving rotating shaft and a material receiving cylinder, wherein the material receiving swing rod is arranged on the inner side surface of the material receiving side plate, one end of the material receiving swing rod is connected with the second transition roller, and the other end of the material receiving swing rod is connected with the material receiving cylinder; the material receiving rotating shaft is connected between the two material receiving side plates, and two ends of the material receiving rotating shaft penetrate through the material receiving swing rods and are respectively fixed on the two material receiving side plates.
2. The production facility of plastic vest bag of claim 1, wherein: a groove is formed at the position of the heat sealing base corresponding to the sliding seat top block, and a pulley capable of sliding on the sliding seat top block is arranged in the groove.
3. The production facility of plastic vest bag of claim 1, wherein: the synchronous heat sealing mechanism further comprises a chain tensioning assembly, the chain tensioning assembly comprises a tensioning cylinder, a cylinder connecting rod, a tensioning lever and a pressing rod, the tensioning cylinder is arranged between the two side plates through a cylinder fixing rod, and two ends of the cylinder fixing rod are respectively connected to the two side plates; the tensioning lever is arranged on the inner side surfaces of the two side plates, the middle part of the tensioning lever is pivoted on the side plates, one end of the tensioning lever is connected with the cylinder connecting rod, and the other end of the tensioning lever is connected with the pressing rod; the cylinder connecting rod is connected with tensioning cylinder cooperation, and the both ends of compressing tightly the pole are equipped with the pinch roller, and two pinch rollers mesh with two group chain groups respectively.
4. The production facility of plastic vest bag of claim 1, wherein: the first transition roller is arranged on the periphery of the driving shaft and is connected between the two driving sprockets through a sprocket connecting seat.
5. The production facility of plastic vest bag of claim 1, wherein: the heat sealing cutter is fixed on the periphery of the driving shaft through a heat sealing cutter fixing seat, the heat sealing cutter fixing seat comprises a first heat sealing cutter fixing seat and a second heat sealing cutter fixing seat, the first heat sealing cutter fixing seat is arranged along the axial direction of the driving shaft, and two ends of the first heat sealing cutter fixing seat are connected with a driving sprocket through sprocket connecting seats; one end of the second heat sealing knife fixing seat is connected with the heat sealing knife, and the other end of the second heat sealing knife fixing seat is connected with the first heat sealing knife fixing seat through an adjusting screw.
6. The production facility of plastic vest bag of claim 1, wherein: the elastic piece is a spring, and the spring is sleeved outside the pressing plate sliding rod.
7. The production apparatus of a plastic vest bag according to any one of claims 1 to 6 in which: the production equipment further comprises a stub bar winding mechanism.
8. The production apparatus of a plastic vest bag according to any one of claims 1 to 6 in which: the production equipment further comprises a film tensioning mechanism and a printing color tracking mechanism, wherein the film tensioning mechanism is arranged between the active discharging mechanism and the feeding mechanism, and the printing color tracking mechanism is arranged between the synchronous heat sealing mechanism and the die cutting mechanism.
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| CN201711461375.8A CN108099267B (en) | 2017-12-28 | 2017-12-28 | Production equipment for plastic vest bag |
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| CN201711461375.8A CN108099267B (en) | 2017-12-28 | 2017-12-28 | Production equipment for plastic vest bag |
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| CN108099267B true CN108099267B (en) | 2023-11-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109677010A (en) * | 2019-01-27 | 2019-04-26 | 中侨路易塑胶制品（东莞）有限公司 | Intersect the manufacturing method for drawing modus ponens plastic bag packaging structure and the type polybag |
| CN110253959A (en) * | 2019-06-26 | 2019-09-20 | 上海岩甄自动化设备有限公司 | A kind of high frequency Bag Making Machine |
| CN112373123B (en) * | 2020-10-22 | 2022-07-26 | 青岛周氏塑料包装有限公司 | Production equipment and process of waistcoat bag with back |
| CN116394583B (en) * | 2023-06-06 | 2023-08-15 | 汕头市永顺包装机械有限公司 | Built-in waste material collection integrated full-automatic film bag making machine |
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