A single sheet garbage bag forming apparatus

Abstract

The application discloses a single-piece garbage bag forming device, which comprises a transmission assembly, a clamping assembly and a breaking assembly arranged in sequence along the feeding direction of the garbage bag, a folding assembly is arranged between the clamping assembly and the breaking assembly and / or on the discharging side of the breaking assembly, and the transmission speed of the breaking assembly is greater than that of the clamping assembly. The single-piece garbage bag forming device has a reasonable structure, and each garbage bag is formed as an independent piece, which is convenient for users to take and improves the user experience.

Description

Technical Field

[0001] This invention relates to the field of garbage bag manufacturing, and in particular to a single-piece garbage bag forming device. Background Technology

[0002] In existing technologies, garbage bags are usually packaged by rolling them up after production. Users need to tear the garbage bag off the roll when using it. If the tear points of the garbage bag are not printed or are printed crookedly, it will be difficult for users to tear it off. They will have to use tools to remove the garbage bag from the roll, which will affect the user experience.

[0003] Therefore, it is necessary to improve the existing garbage bag forming devices. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a single-piece garbage bag forming device, so that each garbage bag is formed as an independent piece, which is convenient for users to take and improves the user experience.

[0005] To achieve the above technical effects, the technical solution of the present invention is as follows: a single-piece garbage bag forming device, comprising a conveying component, a clamping component, and a breaking component arranged sequentially along the garbage bag feeding direction, wherein a folding component is provided between the clamping component and the breaking component and / or on the discharge side of the breaking component, and the conveying speed of the breaking component is greater than the conveying speed of the clamping component.

[0006] A preferred technical solution is that the folding assembly includes a first folding assembly disposed between the clamping assembly and the breaking assembly, and a second folding assembly disposed on the discharge side of the breaking assembly.

[0007] A preferred technical solution is that the pull-off assembly includes a first rolling clamp and a second rolling clamp that rotate and cooperate to hold the garbage bag.

[0008] A preferred technical solution is that the first folding assembly includes a first folding blade that is raised and lowered, and the first folding blade is disposed directly above the clamping portion of the first rolling clamp and the second rolling clamp; the roller surface of the first rolling clamp and / or the second rolling clamp is provided with at least two grooves distributed along the axial direction; the first folding blade is provided with a first protrusion that is concave and convex with the grooves.

[0009] A preferred technical solution further includes a feeding clamping assembly, which includes a first conveyor belt and a third conveyor belt that cooperate to clamp the garbage bag, and the third conveyor belt is disposed below the tear-off assembly.

[0010] A preferred technical solution is that the first conveyor belt is sleeved outside the first rolling clamp, and the second rolling clamp is disposed between the first rolling clamp and the clamping assembly.

[0011] A preferred technical solution is that the feeding end of the third conveyor belt is flush with the feeding end of the first conveyor belt; the second folding assembly includes a second folding blade that is horizontally slidably disposed, the second folding blade being disposed on the feeding side of the contact surface between the first conveyor belt and the third conveyor belt; the first conveyor belt and / or the third conveyor belt are provided with at least three and have gaps, and the second folding blade is provided with a second protrusion that is concave-convex with the gap.

[0012] A preferred technical solution is that the clamping assembly includes a fifth pressure roller and a sixth pressure roller that are rotatably arranged, and the gap between the fifth pressure roller and the sixth pressure roller is adjustable.

[0013] A preferred technical solution is that the fifth pressure roller and the sixth pressure roller are arranged to rotate synchronously.

[0014] A preferred technical solution is that an electrostatic elimination component is provided between the clamping assembly and the breaking assembly.

[0015] A preferred technical solution is that the transmission assembly includes a seventh transmission roller, an eighth transmission roller, and a bag material blowing assembly, wherein the seventh and eighth transmission rollers are rotatably arranged, and the bag material blowing assembly is arranged on the feeding side of the clamping assembly.

[0016] A preferred technical solution is that the bag material blowing assembly includes two air blowing components disposed on the upper and lower sides of the garbage bag, the air blowing components are disposed on the feeding side of the seventh and eighth transmission rollers, and the seventh and eighth transmission rollers are provided with air vents for airflow to pass through.

[0017] A preferred technical solution further includes a bag material carrier fixedly disposed above the tear-off assembly. The bag material carrier is provided with a gap for the first folding knife to pass through, and the height of the bag material carrier is lower than the material discharge height of the clamping assembly.

[0018] A preferred technical solution is that the bag material carrier includes a first receiving plate and a second receiving plate arranged at intervals, the interval between the first receiving plate and the second receiving plate is the gap, the first receiving plate is arranged adjacent to the clamping assembly, and the height of the second receiving plate is lower than the height of the first receiving plate.

[0019] The advantages and beneficial effects of the present invention are as follows: The single-piece garbage bag forming device of the present invention has a reasonable structure. By setting up a clamping component, a tearing component and a folding component, the garbage bags on the production line can be torn apart one by one from the tear point into an independent piece. Several pieces of garbage bags can be stacked and packaged, which is convenient for users to take out. The user takes out one piece and it is a garbage bag, which improves the user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the single-piece garbage bag forming device of the present invention;

[0021] Figure 2 yes Figure 1 An explosion diagram;

[0022] Figure 3 yes Figure 1 A sectional view;

[0023] Figure 4 yes Figure 2 A sectional view;

[0024] Figure 5 This is a schematic diagram of the clamping assembly;

[0025] Figure 6 This is a schematic diagram of the structure of the transmission component and the clamping component;

[0026] Figure 7 It is a cross-sectional view of the garbage bag in a torn state;

[0027] Figure 8 This is a schematic diagram of the internal structure of a garbage bag when it is torn apart;

[0028] Figure 9 This is a partial structural diagram of the rack;

[0029] Figure 10 This is a schematic diagram of the structure of the first rolling clamping component;

[0030] Figure 11 This is a structural diagram of the first folding knife;

[0031] Figure 12 This is a diagram illustrating the feeding process of the integrated garbage bag;

[0032] In the diagram: 100, Frame; 111, First Motor; 112, Second Motor; 113, Third Motor; 115, Fifth Motor; 116, Sixth Motor; 117, Seventh Motor; 120, First Guide Rail; 130, Second Guide Rail; 140, Sixth Guide Rail; 150, Bag Material Carrier; 151, Gap; 152, First Receiving Plate; 153, Second Receiving Plate; 154, Limiting Plate; 155, Coating; 160, Receiving Plate; 170, Eighth Guide Rail; 200, Transmission Assembly; 210, Seventh Transmission Roller; 220, Eighth Transmission Roller; 221, Eighth Slider; 230, Cylinder; 240, Ventilation Groove; 300, Clamping Assembly; 310, Fifth Pressure Roller; 311, Fifth Gear; 320, Sixth Pressure Roller; 321, Sixth Slider; 322, Sixth Gear; 330, Sixth Oblique Gear. Heart wheel; 340, sixth wheel sleeve; 400, break-off assembly; 410, first rolling clamp; 411, first gear; 420, second rolling clamp; 421, second gear; 430, groove; 500, first folding assembly; 510, first folding blade; 511, first protrusion; 520, turntable; 530, first connecting rod; 600, feeding clamp assembly; 610, third rubber roller; 611, third gear; 620, fourth rubber roller; 630, third conveyor belt; 640, ninth rubber roller; 650, first conveyor belt; 660, gap; 700, second folding assembly; 710, second folding blade; 711, sliding plate; 720, second eccentric wheel; 730, second wheel sleeve; 731, second connecting rod; 800, air blowing component; 900, static electricity elimination component; a, integrated garbage bag. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] Example

[0036] like Figure 1-12As shown, the single-piece garbage bag forming device of the embodiment includes: a frame 100, a transmission component 200 connected to the frame 100 and arranged sequentially along the garbage bag feeding direction, a clamping component 300 and a tearing component 400. A folding component is provided between the clamping component 300 and the tearing component 400 and / or on the discharge side of the tearing component 400. The transmission speed of the tearing component 400 is greater than the transmission speed of the clamping component 300 so as to sequentially tear several connected garbage bag units in the integrated garbage bag into independent garbage bags.

[0037] With this design, the clamping assembly 300 works in conjunction with the tearing assembly 400 to use the speed difference to tear the integral garbage bag into individual pieces from the tear point; the folding assembly folds the garbage bag unit to be torn and / or folds the already torn individual garbage bags to reduce the packaging size of the individual garbage bags.

[0038] Specifically, the folding assembly includes a first folding assembly 500 disposed between the clamping assembly 300 and the break assembly 400, and a second folding assembly 700 disposed on the discharge side of the break assembly 400.

[0039] With this design, the first folding component 500 folds the garbage bag unit to be broken and feeds it into the breaking component 400. The second folding component 700 folds the individual garbage bag after it has been folded once from the breaking component 400 a second time, further reducing the area occupied by the individual garbage bag after packaging. Compared with the first folding component 500 and the second folding component 700 being set between the clamping component 300 and the breaking component 400 or on the discharge side of the breaking component 400, the above solution tightly integrates the first folding component 500 with the breaking component 400 and the second folding component 700 with the breaking component 400, reducing the number of structural parts and making the structure more compact.

[0040] Specifically, the tear-off assembly 400 includes a first rolling clamp 410 and a second rolling clamp 420 that rotate and cooperate to clamp the garbage bag. Both the first rolling clamp 410 and the second rolling clamp 420 are rotatably connected to the frame 100 and the axis of rotation is perpendicular to the conveying direction of the garbage bag and is horizontally arranged. At least one of the first rolling clamp 410 and the second rolling clamp 420 is an active component.

[0041] With this design, the clamping parts of the first rolling clamp 410 and the second rolling clamp 420 abut against each other, and the garbage bag unit is clamped between the first rolling clamp 410 and the second rolling clamp 420. As the first rolling clamp 410 and the second rolling clamp 420 cooperate to drive the garbage bag unit, the clamping component 300 compacts and conveys the integrated garbage bag on the production line normally (to avoid the integrated garbage bag sliding relative to the transmission component 200 and the clamping component 300 when the breaking component 400 breaks the garbage bag, which would prevent the garbage bag from breaking normally). The garbage bag unit is broken off from the integrated garbage bag by using the speed difference between the breaking component 400 and the clamping component 300.

[0042] Furthermore, both the first rolling clamp 410 and the second rolling clamp 420 are rubber rollers; the first rolling clamp 410 is an active roller, and the frame 100 is fixedly provided with a first motor 111 for driving the first rolling clamp 410 to rotate. The roller shaft of the first rolling clamp 410 is fixedly provided with a first gear 411, and the roller shaft of the second rolling clamp 420 is fixedly provided with a second gear 421 that meshes with the first gear 411 for transmission.

[0043] With this design, compared to both the first rolling clamp 410 and the second rolling clamp 420 being equipped with motor drives, only one motor drive is required, which is transmitted through gear meshing. This not only reduces the cost of the motor, but also eliminates the need for additional programs to synchronously drive the first rolling clamp 410 and the second rolling clamp 420 to rotate.

[0044] Specifically, the first folding assembly 500 includes a first folding blade 510 that is vertically connected to the frame 100. The first folding blade 510 is located directly above the clamping portion of the first rolling clamp 410 and the second rolling clamp 420. A first driving assembly for driving the first folding blade 510 to move up and down is provided between the first folding blade 510 and the frame 100.

[0045] With this design, the first folding blade 510 can feed the garbage bag between the first rolling clamp 410 and the second rolling clamp 420, and at the same time, it can fold the garbage bag in half at once. The first folding component 500 and the tearing component 400 are tightly integrated.

[0046] Specifically, the first drive assembly includes a turntable 520 rotatably connected to the frame 100. The rotation axis of the turntable 520 is perpendicular to the axis of the first rolling clamp 410 and is horizontally arranged. A first connecting rod 530 is provided between the turntable 520 and the first folding knife 510. The two ends of the first connecting rod 530 are rotatably connected to the turntable 520 and the first folding knife 510, respectively. The connection between the first connecting rod 530 and the turntable 520 is offset from the axis of the turntable 520. The frame 100 is provided with a second motor 112 for driving the turntable 520 to rotate. The frame 100 is provided with a first guide rail 120 slidably connected to the first folding knife 510. The extension direction of the first guide rail 120 is vertically arranged.

[0047] With this design, as the turntable 520 rotates, the first folding blade 510 moves up and down under the guidance of the first guide rail 120. After folding the garbage bag in half and feeding it between the first rolling clamp 410 and the second rolling clamp 420, the first folding blade 510 rises and disengages from the pull-off assembly 400. As an equivalent alternative, the lifting and lowering of the first folding blade 510 can also be achieved by common methods such as cylinder drive.

[0048] Furthermore, the roller surfaces of the first rolling clamp 410 and / or the second rolling clamp 420 are provided with at least two axially distributed grooves 430; the first folding blade 510 is provided with a first protrusion 511 that engages with the grooves 430.

[0049] With this design, the garbage bag unit is folded at the first protrusion 511. Since the first protrusions 511 are spaced apart, there is no contact between the garbage bag parts of two adjacent first protrusions 511. The first protrusions 511 are inserted into the groove 430, and the garbage bag parts located between two adjacent first protrusions 511 are clamped by the clamping parts of the first rolling clamp 410 and the second rolling clamp 420. This avoids the first folding knife 510 being clamped by the first rolling clamp 410 and the second rolling clamp 420 when it sends the garbage bag unit into the break-off assembly 400, which would prevent the first folding knife 510 from being able to disengage smoothly from the break-off assembly 400. As an equivalent replacement, a conveyor belt can also be sleeved on the first rolling clamp 410 and the second rolling clamp 420. Several conveyor belts are spaced apart, and the gap between two adjacent conveyor belts is the groove 430.

[0050] Furthermore, it also includes a feeding clamping assembly 600, which includes a first conveyor belt group and a third conveyor belt group. The third conveyor belt group is disposed below the breakage assembly 400, and the lower surface of the first conveyor belt 650 of the first conveyor belt group is in contact with the upper surface of the third conveyor belt 630 of the third conveyor belt group.

[0051] With this design, the folded garbage bag is sandwiched between the first conveyor belt 650 and the third conveyor belt 630. The first conveyor belt 650 and the third conveyor belt 630 work together to limit the garbage bag and continuously press the folded garbage bag tightly, making the garbage bag folded more tightly and preventing the garbage bag from falling or shifting during the transportation process.

[0052] Furthermore, the third conveyor belt assembly includes a third rubber roller 610 and a fourth rubber roller 620. A third conveyor belt 630 is sleeved on the third rubber roller 610 and the fourth rubber roller 620. The third rubber roller 610 and the fourth rubber roller 620 are rotatably connected to the frame 100, and the axis of rotation is parallel to the axis of rotation of the first rolling clamp 410. The roller shaft of the third rubber roller 610 is fixedly provided with a third gear 611 that meshes with the first gear 411 for transmission. It also includes a ninth rubber roller 640 rotatably connected to the frame 100. The first conveyor belt 650 is sleeved on the first rolling clamp 410 and the ninth rubber roller 640. The second rolling clamp 420 is disposed between the first rolling clamp 410 and the clamping assembly 300.

[0053] This design achieves the goal of synchronous rotation between the third rubber roller 610 and the first rolling clamp 410, thereby enabling the first conveyor belt 650 and the third conveyor belt 630 to move synchronously.

[0054] Furthermore, the feed end of the third conveyor belt 630 is flush with the feed end of the first conveyor belt 650; the second folding assembly 700 includes a second folding blade 710 slidably connected to the frame 100, the sliding direction of the second folding blade 710 is horizontal and perpendicular to the axis of the first rolling clamp 410; the second folding blade 710 is disposed on the feed side of the contact surface between the first conveyor belt 650 and the third conveyor belt 630; the first conveyor belt 650 and / or the third conveyor belt 630 include at least three unit conveyor belts that are spaced apart, with a gap 660 between two adjacent unit conveyor belts, and the second folding blade 710 is provided with a second protrusion that is concave and convex with the gap 660; a second driving assembly for driving the second folding blade 710 to slide is disposed between the second folding blade 710 and the frame 100.

[0055] With this design, the individually folded garbage bags, which are conveyed downwards, are pushed into the space between the first conveyor belt 650 and the third conveyor belt 630 after being folded once. At the same time, the individually folded garbage bags can be folded a second time. Two gaps 660 are formed along the axial direction of the first rolling clamp by at least three unit conveyor belts, and the gaps 660 are located between the first conveyor belt 650 and the third conveyor belt 630. The second protrusion is inserted into the gap 660, and the individually folded garbage bags are clamped and transported by the first conveyor belt 650 and the third conveyor belt 630.

[0056] Furthermore, to prevent the unit conveyor belt from running off-center during operation, the first rolling clamp 410, the third rubber roller 610, the fourth rubber roller 620, and the ninth rubber roller 640 are all provided with limiting grooves, and the inner surface of the unit conveyor belt is located within the limiting grooves.

[0057] Specifically, the second drive assembly includes a second eccentric wheel 720 and a second wheel sleeve 730 sleeved around the second eccentric wheel 720. The second eccentric wheel 720 is rotatably connected to the frame 100, and the axis of rotation of the second eccentric wheel 720 is parallel to the axis of rotation of the first rolling clamping member 410. The second wheel sleeve 730 is fixedly provided with a second connecting rod 731 rotatably connected to the second folding knife 710, and the axis of rotation of the second connecting rod 731 is parallel to the axis of rotation of the first rolling clamping member 410. The frame 100 is equipped with a third motor 113 for driving the second eccentric wheel 720 to rotate; the second eccentric wheel 720 is located below the third conveyor belt 630; the second folding knife 710 includes a sliding plate 711; the frame 100 is equipped with a second guide rail 130 that is slidably connected to the sliding plate 711; the extension direction of the second guide rail 130 is horizontal and perpendicular to the axis of the first rolling clamp 410; the second connecting rod 731 is rotatably connected to the sliding plate 711.

[0058] With this design, as the second eccentric wheel 720 rotates, the second folding blade 710, guided by the second guide rail 130, is driven by the second wheel sleeve 730 and the second connecting rod 731 to perform reciprocating linear motion. The design of the sliding plate 711 avoids interference between the movement of the second folding blade 710 and the rotation of the third gear 611 and the first gear 411. As an equivalent replacement, the reciprocating linear motion of the second folding blade 710 can also be achieved by conventional methods such as cylinder drive.

[0059] Specifically, the clamping assembly 300 includes a fifth pressure roller 310 and a sixth pressure roller 320 that are rotatably connected to the frame 100. The gap between the fifth pressure roller 310 and the sixth pressure roller 320 is adjustable, and the fifth pressure roller 310 and the sixth pressure roller 320 are rotatably connected.

[0060] With this design, when the tear-off assembly 400 needs to tear the garbage bag, the fifth pressure roller 310 and the sixth pressure roller 320 fit tightly together to press the integrated garbage bag, preventing relative sliding between the integrated garbage bag and the fifth pressure roller 310 and the sixth pressure roller 320; after the garbage bag unit is torn apart, the fifth pressure roller 310 and the sixth pressure roller 320 separate, so that the integrated garbage bag can be transported smoothly and indentations can be avoided on the integrated garbage bag.

[0061] Specifically, the rotation axis of the fifth pressure roller 310 and the sixth pressure roller 320 is parallel to the axis of the first rolling clamp 410. The fifth pressure roller 310 is the driving roller, and the sixth pressure roller 320 is located above the fifth pressure roller 310. The sixth pressure roller 320 has two working positions. In the first working position, the sixth pressure roller 320 is in contact with the fifth pressure roller 310 to fix the garbage bag. In the second working position, the sixth pressure roller 320 is separated from the fifth pressure roller 310. A sixth drive assembly for driving the sixth pressure roller 320 to rise and fall is provided between the sixth pressure roller 320 and the frame 100. The sixth pressure roller 320 is a rubber roller.

[0062] With this design, when the tear-off assembly 400 needs to tear the garbage bag, the sixth pressure roller 320 presses down to compact the integrated garbage bag, facilitating the operation of the tear-off assembly 400. After the garbage bag unit is torn, the sixth pressure roller 320 rises. Under the adsorption force between the sixth pressure roller 320 and the integrated garbage bag and / or the airflow changes around the sixth pressure roller 320, the integrated garbage bag is lifted up and then falls under the action of gravity. Compared with the integrated garbage bag being transported horizontally at all times, the above-mentioned conveying method allows the integrated garbage bag to be transported over a longer distance.

[0063] Specifically, the frame 100 is equipped with a fifth motor 115 for driving the fifth pressure roller 310 to rotate; the sixth pressure roller 320 has a sixth slider 321 rotatably mounted at both ends, and the frame 100 is fixedly equipped with a sixth guide rail 140 slidably connected to the sixth slider 321, with the extension direction of the sixth guide rail 140 being vertical; the sixth drive assembly includes a sixth eccentric wheel 330 and a sixth wheel sleeve 340 sleeved outside the sixth eccentric wheel 330, the sixth eccentric wheel 330 is rotatably connected to the frame 100, and the axis of rotation of the sixth eccentric wheel 330 is parallel to the axis of rotation of the first rolling clamp 410; the sixth wheel sleeve 340 is rotatably connected to the sixth slider 321, and the axis of rotation of the sixth eccentric wheel 330 is parallel to the axis of rotation of the first rolling clamp 410; the frame 100 is equipped with a sixth motor 116 for driving the sixth eccentric wheel 330 to rotate.

[0064] With this design, the purpose of lifting and lowering the sixth pressure roller 320 can be achieved. As the sixth eccentric wheel 330 rotates, the sixth slider 321 is guided by the sixth guide rail 140, and the sixth wheel sleeve 340 drives the sixth slider 321 to lift and lower, thereby driving the sixth pressure roller 320 to lift and lower. As an equivalent replacement, the lifting and lowering movement of the sixth pressure roller 320 can also be achieved by conventional methods such as cylinder drive.

[0065] Furthermore, the fifth pressure roller 310 has a fifth gear 311 fixedly mounted on its roller shaft, and the sixth pressure roller 320 has a sixth gear 322 fixedly mounted on its roller shaft. In both the first and second working positions, the fifth gear 311 and the sixth gear 322 are always meshed and driven.

[0066] With this design, in the second working position, although the sixth pressure roller 320 is separated from the fifth pressure roller 310, the sixth pressure roller 320 always maintains synchronous rotation with the fifth pressure roller 310 under the action of the meshing transmission of the sixth gear 322 and the fifth gear 311. If the sixth gear 322 and the fifth gear 311 are not meshing, the sixth pressure roller 320 will be in a stationary state in the second working position. When the sixth pressure roller 320 descends to the position where it contacts the fifth pressure roller 310 and the connected garbage bag, the instantaneous friction will cause the connected garbage bag on the production line to shift, delaminate, or even be damaged.

[0067] Furthermore, a static eliminator 900 is provided between the clamping assembly 300 and the breaking assembly 400, and the static eliminator 900 is positioned above the garbage bag; the static eliminator 900 is a static eliminator rod, which eliminates static electricity from the attached garbage bag through contact or non-contact methods. Furthermore, the static eliminator 900 is a non-contact static eliminator.

[0068] With this design, the garbage bag unit entering the break assembly 400 is not static-charged, thus preventing it from being attracted by the first conveyor belt 650 and the second rolling clamp 420, which would prevent the garbage bag unit after one fold from being discharged smoothly. Compared with the contact static elimination component, the non-contact static elimination component does not exert a downward force on the upward-lifting connected garbage bag and does not reduce the predetermined feeding stroke of the upward-lifting garbage bag.

[0069] Specifically, the transmission assembly 200 includes a seventh transmission roller 210, an eighth transmission roller 220, and a bag blowing assembly. The seventh transmission roller 210 and the eighth transmission roller 220 are rotatably arranged. The bag blowing assembly is located on the feeding side of the clamping assembly 300. The bag blowing assembly is used to prevent the garbage bag between the fifth pressure roller 310 and the seventh transmission roller 210 from sagging in the second working position.

[0070] This design enables the conveying of the integrated garbage bag, preventing the integrated garbage bag from drooping due to gravity when the sixth pressure roller 320 separates from the integrated garbage bag during its ascent.

[0071] Specifically, the bag material blowing assembly includes two air blowing components 800 disposed on the upper and lower sides of the garbage bag. The air blowing components 800 are disposed on the feeding side of the seventh transmission roller 210 and the eighth transmission roller 220. The seventh transmission roller 210 and the eighth transmission roller 220 are provided with air vents 240 for airflow to pass through.

[0072] With this design, the air blowing component 800 blows air onto the garbage bag, ensuring that the garbage bag is always conveyed normally under the action of airflow; the structure of the fifth pressure roller 310 being fixed in position and the sixth pressure roller 320 moving upward, with the two rollers spaced apart to allow airflow to pass through and provide clearance for the upward movement of the integrated garbage bag, the blowing airflow further increases the upward amplitude of the garbage bag, further increases the feeding stroke of the garbage bag, and simplifies the driving mechanism for feeding the integrated garbage bag.

[0073] Furthermore, several ventilation grooves 240 are provided along the axial direction of the seventh transmission roller 210 and the eighth transmission roller 220.

[0074] With this design, airflow acts on the integrated garbage bag through several ventilation slots 240, which can avoid the airflow being too concentrated and can disperse the airflow to act on the surface of the integrated garbage bag.

[0075] Specifically, the air blowing component 800 is an air blowing pipe with several air outlets, and the air blowing pipe is fixedly connected to the frame 100.

[0076] Specifically, the seventh transmission roller 210 and the eighth transmission roller 220 are rotatably connected to the frame 100, and the rotation axis of the seventh transmission roller 210 and the eighth transmission roller 220 is parallel to the axis of the first rolling clamp 410. The frame 100 is provided with a seventh motor 117 for driving the seventh transmission roller 210 to rotate. The eighth slider 221 is rotatably provided at both ends of the eighth transmission roller 220. The frame 100 is fixedly provided with an eighth guide rail 170 that is slidably connected to the eighth slider 221. The extension direction of the eighth guide rail 170 is vertical. A cylinder 230 for driving the eighth slider 221 to rise and fall is provided between the frame 100 and the eighth slider 221.

[0077] With this design, the seventh transmission roller 210 and the eighth transmission roller 220 work together to transport the garbage bag; the lifting and lowering of the eighth transmission roller 220 can adjust the pressure on the garbage bag, avoiding the garbage bag being unable to be transported due to insufficient pressure or causing indentations due to excessive pressure.

[0078] Specifically, the frame 100 is fixedly equipped with a bag material carrier 150, which is located above the first rolling clamping member 410. The bag material carrier 150 is provided with a gap 151 for the first folding knife 510 to pass through, and the height of the bag material carrier 150 is lower than the discharge height of the clamping assembly 300.

[0079] With this design, the garbage bag unit is conveyed to the bag carrier 150 by the inertia of the air blowing component 800 and the clamping component 300, so that the first folding knife 510 can fold it once.

[0080] Furthermore, the bag material carrier 150 includes a first receiving plate 152 and a second receiving plate 153 arranged at intervals. The interval between the first receiving plate 152 and the second receiving plate 153 is a gap 151. The first receiving plate 152 is arranged adjacent to the clamping assembly 300. The height of the second receiving plate 153 is lower than the height of the first receiving plate 152.

[0081] With this design, the height of the second receiving plate 153 is further lower than the height of the first receiving plate 152. Under the inertial feeding action of the airflow from the blowing component 800, the height of the garbage bag unit is lower than that of the bag carrier platform 150, which is the same as the height of the clamping component 300. This lower height of the second receiving plate 153 ensures a longer travel distance for the garbage bag unit and also ensures that the garbage bag unit can fall smoothly onto the second receiving plate 153. Therefore, the shorter length of the bag carrier platform 150 is sufficient to complete the transfer of the garbage bag unit.

[0082] Furthermore, the second receiving plate 153 is provided with a limiting plate 154, and the horizontal distance from the limiting plate 154 to the first folding blade 510 is half the length of the garbage bag unit.

[0083] This design limits the amount of material fed into the garbage bag, preventing excessive material from being fed into the garbage bag unit and making it impossible to fold it in half at the center of the garbage bag unit.

[0084] Furthermore, the surface of the second receiving plate 153 is provided with a coating 155 for reducing frictional resistance, and the coating 155 is provided on the feed side of the limiting plate 154. The coating 155 is a polytetrafluoroethylene coating.

[0085] This design reduces the frictional resistance between the garbage bag unit and the second receiving plate 153, allowing the garbage bag unit to travel further on the second receiving plate 153 without increasing the feeding power of the transmission component 200 or the air blowing component 800.

[0086] Specifically, the frame 100 is equipped with a receiving plate 160, the height of which is lower than the upper surface height of the third conveyor belt 630. The fourth rubber roller 620 and the receiving plate 160 are arranged sequentially along the conveying direction of the garbage bags.

[0087] This design achieves the goal of receiving individual garbage bags that have been folded twice.

[0088] The specific usage of the embodiment is as follows:

[0089] The seventh transmission roller 210 and the eighth transmission roller 220 work together to drive the conveying of the integrated garbage bag. The air blowing component 800 always blows air towards the clamping assembly 300. The airflow acts on the integrated garbage bag on the discharge side of the eighth transmission roller 220 through the air vent 240.

[0090] When the sixth pressure roller 320 is in the second working position, the garbage bag unit falls smoothly onto the bag carrier 150 under the action of inertia. At this time, the first folding knife 510 is above the bag carrier 150, and the second folding knife 710 is on the feeding direction side of the first folding knife 510.

[0091] The sixth drive assembly drives the sixth pressure roller 320 to descend to the first working position, compacting the integrated garbage bags on the production line to prevent relative sliding between the integrated garbage bags and the transmission assembly 200 when the garbage bag unit breaks. At this time, the first drive assembly drives the first folding blade 510 to descend, folding the garbage bag unit on the bag carrier 150 through the gap 151 and pushing it between the first rolling clamp 410 and the second rolling clamp 420. Under the action of the first rolling clamp 410 and the second rolling clamp 420, the garbage bag unit is folded and compacted and broken off from the integrated garbage bag on the production line into an independent unit. The second drive assembly drives the second folding blade 710 to move towards the contact surface of the first conveyor belt 650 and the third conveyor belt 630, and folds the independent garbage bag a second time, feeding it between the first conveyor belt 650 and the third conveyor belt 630. The garbage bag folded a second time is transported to the receiving plate 160 by the cooperation of the first conveyor belt 650 and the third conveyor belt 630.

[0092] When the garbage bag unit breaks, the sixth drive component drives the sixth pressure roller 320 to rise. The integrated garbage bag rises under the action of the adhesion of the sixth pressure roller 320 and the airflow blown out by the air blowing component 800. Then it falls due to gravity. Under the action of airflow, the garbage bag unit has a longer stroke, and the overall device can be designed to be more compact.

[0093] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for forming single-piece garbage bags, characterized in that, The device includes a conveying assembly (200), a clamping assembly (300), and a breaking assembly (400) arranged sequentially along the feeding direction of the garbage bag. A folding assembly is provided between the clamping assembly (300) and the breaking assembly (400) and / or on the discharge side of the breaking assembly (400). The conveying speed of the breaking assembly (400) is greater than that of the clamping assembly (300). The clamping assembly (300) includes a fifth pressure roller (310) and a sixth pressure roller (320) arranged to rotate synchronously. The gap between the fifth pressure roller (310) and the sixth pressure roller (320) is adjustable. The fifth pressure roller (310) is a drive roller, and the sixth pressure roller (320) is disposed above the fifth pressure roller (310). The sixth pressure roller (320) has two working positions. In the first working position, the sixth pressure roller (320) is in contact with the fifth pressure roller (310) to fix the garbage bag. In the second working position, the sixth pressure roller (320) is separated from the fifth pressure roller (310). The sixth pressure roller (320) is a rubber roller. The transmission assembly (200) includes a seventh transmission roller (210), an eighth transmission roller (220), and a bag material blowing assembly. The bag material blowing assembly includes an air blowing element (800). Two air blowing elements (800) are respectively disposed above and below the clamping portion of the seventh transmission roller (210) and the eighth transmission roller (220). The air blowing element (800) is disposed on the feed side of the seventh transmission roller (210). The seventh transmission roller (210) and the eighth transmission roller (220) are provided with ventilation grooves (240) for airflow. A sixth drive assembly for driving the sixth pressure roller (320) to rise and fall is provided between the sixth pressure roller (320) and the frame (100); The frame (100) is fixedly equipped with a bag carrier (150), an air blowing component (800) and a clamping assembly (300) configured to transport garbage bag units onto the bag carrier (150).

2. The single-piece garbage bag forming device according to claim 1, characterized in that, The folding assembly includes a first folding assembly (500) disposed between the clamping assembly (300) and the break-off assembly (400) and a second folding assembly (700) disposed on the discharge side of the break-off assembly (400).

3. The single-piece garbage bag forming device according to claim 2, characterized in that, The pull-off assembly (400) includes a first rolling clamp (410) and a second rolling clamp (420) that rotate and cooperate to hold the garbage bag.

4. The single-piece garbage bag forming device according to claim 3, characterized in that, The first folding assembly (500) includes a first folding blade (510) that is raised and lowered. The first folding blade (510) is located directly above the clamping portion of the first rolling clamp (410) and the second rolling clamp (420). The roller surface of the first rolling clamp (410) and / or the second rolling clamp (420) is provided with at least two grooves (430) distributed along the axial direction. The blade of the first folding blade (510) is provided with a first protrusion (511) that is in concave-convex cooperation with the groove (430).

5. The single-piece garbage bag forming device according to claim 3, characterized in that, It also includes a feeding clamping assembly (600), which includes a first conveyor belt (650) and a third conveyor belt (630) that cooperate to clamp the garbage bag, the third conveyor belt (630) being disposed below the tear-off assembly (400).

6. The single-piece garbage bag forming device according to claim 5, characterized in that, The first conveyor belt (650) is sleeved on the outside of the first rolling clamp (410), and the second rolling clamp (420) is disposed on the feed side of the first rolling clamp (410).

7. The single-piece garbage bag forming device according to claim 6, characterized in that, The second folding assembly (700) includes a second folding blade (710), which is positioned opposite to the contact surfaces of the first conveyor belt (650) and the third conveyor belt (630). The second folding blade (710) reciprocates along the conveying direction of the first conveyor belt (650). The first conveyor belt (650) and / or the third conveyor belt (630) include at least three unit conveyor belts that are spaced apart from each other. The blade of the second folding blade (710) is provided with a second protrusion that is in concave-convex fit with the gap between two adjacent unit conveyor belts.

8. The single-piece garbage bag forming device according to claim 1, characterized in that, An electrostatic eliminator (900) is provided between the clamping assembly (300) and the breaking assembly (400).

9. The single-piece garbage bag forming device according to claim 1, characterized in that, The seventh transmission roller (210) and the eighth transmission roller (220) are rotatably arranged.

10. The single-piece garbage bag forming device according to claim 9, characterized in that, The bag material carrier (150) is fixedly disposed above the tear-off assembly (400). The bag material carrier (150) is provided with a gap (151) through which the folding blade of the folding assembly passes. The height of the bag material carrier (150) is lower than the discharge height of the clamping assembly (300).

11. The single-piece garbage bag forming device according to claim 10, characterized in that, The bag carrier platform (150) includes a first receiving plate (152) and a second receiving plate (153) arranged at intervals. The interval between the first receiving plate (152) and the second receiving plate (153) is the gap (151). The first receiving plate (152) is arranged adjacent to the clamping assembly (300). The height of the second receiving plate (153) is lower than the height of the first receiving plate (152).

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