Packing bag releasing and bottoming device

Abstract

The utility model discloses a packing bag releasing and bottoming device, which belongs to the technical field of object packing, and comprises a first conveying belt and a second conveying belt, and further comprises a feeding and cutting device which is provided with a working surface and is positioned between the first conveying belt and the second conveying belt, the feeding and cutting device further comprises a first conveying roller which is driven by power to rotate, and a second conveying roller which is driven by power to rotate; at least part of the guide rail is positioned above the working surface; the pressing roller is arranged on the side of the first conveying roller, so that the packaging bag penetrating through the space between the pressing roller and the first conveying roller abuts against the first conveying roller; the floating pressing wheel assembly is driven by power to ascend and descend above the working face so as to elastically press the packaging bag passing through the position above the first conveying roller to the first conveying roller. And the cutting-off assembly is used for cutting off the packaging bag on the working face. According to the whole device, automation of a series of operations such as packaging bag conveying, pausing, object wrapping and cutting-off is achieved through orderly cooperation of all the components.

Description

Technical Field

[0001] The utility model relates to the technical field of object packaging, in particular to a packaging bag bottom releasing device. Background Art

[0002] In the packaging industry, efficient automated packaging systems are crucial for improving production efficiency and reducing costs. Existing packaging systems typically require manual operation for conveying, wrapping, and cutting bags, as well as for manually loading the objects to be packaged. This not only increases labor costs but also limits production speed. Especially for large items and batch production, manual operation cannot meet the requirements for fast and accurate packaging. Utility Model Content

[0003] The embodiment of the utility model provides a device for releasing the bottom of a packing bag to solve the problems in the prior art.

[0004] The embodiment of the utility model adopts the following technical solution: a device for releasing and laying a bottom of a packing bag, comprising a first conveyor belt and a second conveyor belt arranged at the output end of the first conveyor belt, wherein the first conveyor belt is used to convey a first object to be packaged, and the second conveyor belt is used to receive the first object on the first conveyor belt, and further comprising: a feeding and cutting device having a working surface and located between the first conveyor belt and the second conveyor belt, wherein the feeding and cutting device further comprises: a first conveyor roller, which is driven to rotate by power and is at least partially located above the working surface; a pressure roller, which is arranged beside the first conveyor roller to press the packing bag passing between the pressure roller and the first conveyor roller against the first conveyor roller; a floating pressure wheel assembly, which is driven to rise and fall above the working surface by power to elastically press the packing bag passing over the first conveyor roller against the first conveyor roller; and a cutting assembly to cut the packing bag on the working surface. The entire device realizes the automation of a series of operations such as packing bag conveying, pausing, wrapping objects and cutting through the orderly coordination between the various components.

[0005] Preferably, the feeding and cutting device further includes a lifting drive mechanism for driving the floating pressure wheel assembly to move up and down.

[0006] Preferably, the floating pressure roller assembly comprises: a mounting frame, configured with two groups, and disposed oppositely at the actuating end of the lifting drive mechanism; two floating seats, configured with two groups, longitudinally slidably connected to the two mounting frames, each group of floating seats being elastically connected to the corresponding mounting frame in its sliding direction; a shaft, the ends of which are respectively connected to the two floating seats by bearings, and the shaft also rotatably sleeved with a plurality of pressure rollers; and two adjustment assemblies, configured with two groups, for adjusting the elastic force exerted on the two groups of floating seats. The pressure rollers can elastically press the packaging bag against the first conveyor roller, ensuring stable conveyance of the packaging bag. The provision of multiple pressure rollers also provides for more uniform and reliable compression of the packaging bag.

[0007] Preferably, the adjustment assembly includes: an adjustment plate, which is longitudinally slidably connected to the mounting frame and is located above the floating seat; an elastic member, which is elastically connected between the adjustment plate and the floating seat; an adjustment bolt, whose threaded end passes through the mounting frame and is threadedly connected to it, and the threaded end abuts against the upper end of the adjustment plate to adjust the position of the adjustment plate in the mounting frame.

[0008] Preferably, the execution end of the lifting drive mechanism is also equipped with a profile frame, on which a number of evenly distributed air nozzles are laterally installed, each of which is connected to an external air source for blowing toward the packaging bags on the second conveyor belt and / or the working surface.

[0009] Preferably, the lifting drive mechanism is further provided with a profile frame mounted on the actuator end thereof, on which are transversely mounted a plurality of evenly spaced air nozzles, each of which is connected to an external air source for blowing air toward the packing bags on the second conveyor belt and / or the working surface. A space is provided between each two adjacent pressure rollers, and an air nozzle is positioned within the space. The air blown through the air nozzles ensures that the packing bags adhere closely to the working surface and the second conveyor belt, preventing the packing bags from partially warping during transportation.

[0010] Preferably, the cutting assembly includes: a heating wire, which is horizontally arranged just above the notch of the working surface; two connecting terminals, with the two ends of the heating wire being electrically connected to the two connecting terminals respectively; and a lifting mechanism, which is installed at the execution end of the lifting drive mechanism to drive the heating wire to move longitudinally.

[0011] Preferably, the lifting mechanism includes a linear actuator mounted on the actuator end of the lifting mechanism via a bracket; a fixing member mounted on the actuator end of the linear actuator, and both of the wiring terminals are mounted on the fixing member. Using a heating wire to fuse the packaging bag eliminates the generation of debris and other debris, thereby maintaining a relatively clean work area.

[0012] Preferably, the first conveying roller, the pressure roller and the plurality of pressure wheels are all configured as rubber roller structures.

[0013] At least one of the above technical solutions adopted in the embodiment of the present utility model can achieve the following beneficial effects:

[0014] First, the entire device automates a series of operations such as bag conveying, pausing, wrapping objects, and cutting through orderly coordination between various components. Compared with the traditional purely manual packaging method, it greatly reduces the workload and labor intensity of manual operations and significantly improves the packaging efficiency. This advantage is especially prominent in the mass production of furniture products such as sofas.

[0015] Secondly, relying on the stable conveying and positioning of the packing bags by the first conveyor roller and the pressure roller, the flexible elastic pressure and avoidance of the floating pressure wheel assembly, and the accurate cutting operation of the cutting assembly, key factors such as the laying length, wrapping position and reserved length of the packing bags can be accurately controlled, making the quality of each packing more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a partial structural cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the first conveyor belt and the feeding and cutting device of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the feeding and cutting device of the utility model;

[0021] Figure 5 This is a schematic diagram of the partial structure of the feeding and cutting device of the utility model Figure 1 ;

[0022] Figure 6 This is a schematic diagram of the partial structure of the feeding and cutting device of the utility model Figure 2 ;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of the adjustment component of the utility model;

[0024] Figure 8 This is an exploded view of the adjustment component of the utility model.

[0025] Reference numerals

[0026] 1-first conveyor belt; 3-second conveyor belt; 4-feeding and cutting device; 41-working surface; 411-notch; 42-first conveyor roller; 43-pressure roller; 44-floating pressure wheel assembly; 441-mounting frame; 442-floating seat; 443-shaft rod; 444-pressure wheel; 445-adjusting plate; 446-elastic member; 447-adjusting bolt; 45-cutting assembly; 451-heating wire; 452-connecting terminal; 453-linear drive; 454-fixing part; 46-lifting drive mechanism; 47-profile frame; 471-air nozzle; 6-first frame; 61-winding roller; 62-conductor roller assembly. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0028] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Reference Figures 1 to 8 As shown, an embodiment of the utility model provides a packaging bag releasing bottom laying device, including a first conveyor belt 1 and a second conveyor belt 3 arranged at the output end of the first conveyor belt 1, and a feeding cutting device 4. The first conveyor belt 1 is used to convey the first object to be packaged, and the second conveyor is used to receive the first object on the first conveyor belt 1.

[0030] The feeding and cutting device 4 comprises a working surface 41, a first conveying roller 42, a pinch roller 43, a floating pinch wheel assembly 44 and a cutting assembly 45. The working surface 41 is located between the first conveyor belt 1 and the second conveyor belt 3.

[0031] The first conveying roller 42 is driven to rotate by power and serves as the main power component for conveying the packing bags. The first conveying roller 42 is partially located above the working surface 41 and is in direct contact with the packing bags to drive them to move.

[0032] The pressure roller 43 is arranged beside the first conveyor roller 42 and cooperates with the first conveyor roller 42 to press the packing bag passing between the two tightly against the first conveyor roller 42, thereby enhancing the friction between the packing bag and the first conveyor roller 42, ensuring that the packing bag can be smoothly conveyed with the stable rotation of the first conveyor roller 42. On the other hand, it also restrains the lateral position of the packing bag, preventing it from shifting left and right during the conveying process, which affects the effect of subsequently wrapping the first object (in actual production, used for packaging sofas).

[0033] The floating pinch roller assembly 44 is driven by a power source to rise and fall above the working surface 41, elastically pressing the bags passing over the first conveyor roller 42 against the first conveyor roller 42. This ensures that the bags, after passing through the first conveyor roller 42 and the pinch roller 43, lie flat on the working surface 41 and move toward the second conveyor belt 3. The cutting assembly 45 is used to cut the bags on the working surface 41, precisely controlling their length.

[0034] In some practical applications, the feeding and cutting device 4 further includes a lifting drive mechanism 46 for driving the floating pinch wheel assembly 44 to move up and down (the lifting drive is a conventional design method, such as Figure 4 As shown in the figure, the configuration is two sets of oppositely arranged screw lifting modules).

[0035] The working principle of the packing bag release and bottom laying device in actual production application is as follows: when the sofa is still being conveyed by the first conveyor belt 1 and has not yet reached the feed cutting assembly 45, the first conveyor roller 42 starts working, and with its power drive, the packing bag is continuously conveyed to the working surface 41. At the same time, the floating pressure wheel assembly 44 works to pre-press the packing bag on the working surface 41, and the packing bag moves smoothly along the working surface 41 toward the second conveyor belt 3. When the packing bag moves along the working surface 41 to a predetermined length that can wrap around one end of the sofa, the packing bag stops moving. At the same time, the floating pressure wheel assembly 44 rises to a certain height to make room for the sofa to enter the second conveyor belt 3 smoothly, avoiding collision with the sofa or obstruction of its movement. Then, after the sofa successfully enters the second conveyor belt 3 and is located on the packing bag, the two will continue to move together with the second conveyor belt 3. During this process, the packing bag is gradually and completely laid out on the bottom of the sofa as the conveyor belt runs, until the sofa is completely moved onto the second conveyor belt 3. The tail end of the packing bag on the second conveyor belt 3 is left with an appropriate distance to meet subsequent packaging requirements, such as the length margin required for subsequent sealing, reinforcement, and other operations. The cutting assembly 45 is then immediately activated, cutting the woven bag at the precise location. This completes the laying of the packing bag on the bottom of the sofa on the second conveyor belt 3. Workers can then use the laid-out packing bag on the second conveyor belt 3 to perform further packaging operations on the sofa, such as tying ropes, applying tape, and other sealing and reinforcement operations. Finally, the second conveyor belt 3 transports the packaged sofa to the next workstation for the next production step.

[0036] In summary, the entire device realizes the automation of a series of operations such as bag conveying, pausing, wrapping objects, and cutting through the orderly coordination between various components. Compared with the traditional purely manual packaging method, it greatly reduces the workload and labor intensity of manual operations and significantly improves the packaging work efficiency. This advantage is especially prominent in the mass production of furniture products such as sofas.

[0037] In addition, relying on the stable conveying and positioning of the packing bags by the first conveying roller 42 and the pressure roller 43, the flexible elastic pressure and avoidance of the floating pressure wheel assembly 44, and the accurate cutting operation of the cutting assembly 45, it is possible to accurately control key factors such as the laying length, wrapping position and reserved length of the packing bags, so that the quality of each packing is relatively stable and reliable.

[0038] Furthermore, the device is designed with components such as the floating pressure wheel assembly 44 to have good adaptability to sofas of different sizes and shapes (or other similar first objects to be packaged). Whether it is a large modular sofa or a small single sofa, the device can smoothly complete the bottom laying and wrapping operations of the packing bag, and has strong versatility.

[0039] In some practical applications, the first conveyor roller 42, the pinch roller 43, and the plurality of pinch rollers 444 are all configured as rubber rollers. Rubber rollers are typically made by coating a metal core with a layer of rubber or other elastic polymer material. This material combination imparts excellent elasticity to the rubber rollers, allowing them to deform slightly when in contact with the bag, thereby better conforming to the bag surface and increasing contact area, thereby facilitating stable conveyance of the bag.

[0040] In some practical applications, refer to Figures 4 to 6 As shown, the floating pressure wheel assembly 44 mainly includes a mounting frame 441, a floating seat 442, a shaft 443 and an adjustment assembly.

[0041] Two sets of mounting brackets 441 are arranged opposite each other at the actuator end of the lift drive mechanism 46, allowing for up and down movement under the action of the lift drive rod mechanism. Two sets of floating seats 442 are provided, each longitudinally slidingly connected to the two mounting brackets 441. Each set of floating seats 442 is elastically connected to the corresponding mounting bracket 441 in its sliding direction. The ends of the shaft 443 are respectively connected to the two floating seats 442 by bearings. The shaft 443 is also rotatably mounted with a plurality of pressure rollers 444. This connection method ensures that the shaft 443 can flexibly rotate relative to the floating seats 442 while maintaining a relatively stable position. The floating of the floating seats 442 on the mounting brackets 441 enables adaptive position adjustment. A number of pressure wheels 444 are rotatably mounted on the shaft 443. These pressure wheels 444 are components that directly contact the packaging bag and perform the compression function. When the shaft 443 rotates under the action of power or passively rotates as the packaging bag moves, the pressure wheels 444 can elastically press the packaging bag onto the first conveying roller 42 to ensure stable transportation of the packaging bag. At the same time, the provision of multiple pressure wheels 444 can also make the compression of the packaging bag more uniform and reliable.

[0042] Two adjustment assemblies are configured to adjust the elastic force applied to the two sets of floating seats 442. Specifically, the adjustment assembly includes: an adjustment plate 445, longitudinally slidably connected to the mounting frame 441 and positioned above the floating seats 442; an elastic member 446, elastically connected between the adjustment plate 445 and the floating seats 442; and an adjustment bolt 447, the threaded end of which passes through the mounting frame 441 and is threadedly connected thereto. This threaded end abuts the upper end of the adjustment plate 445 to adjust the position of the adjustment plate 445 within the mounting frame 441.

[0043] When adjusting bolt 447 is rotated, the threaded action causes it to move along its axial direction, thereby pushing adjusting plate 445 up and down within mounting bracket 441. For example, clockwise rotation of adjusting bolt 447 pushes adjusting plate 445 downward, compressing elastic member 446 and increasing the elastic force acting on floating seat 442. Conversely, counterclockwise rotation of adjusting bolt 447 moves it upward, causing elastic member 446 to extend under its own elastic force, reducing the elastic force acting on floating seat 442. In this way, the elastic force acting on floating seat 442 can be precisely adjusted to accommodate different bag materials and thicknesses, as well as the required compression force for different bagging operations.

[0044] In some practical applications, refer to Figures 4 to 6 As shown, a profile frame 47 can also be installed at the execution end of the lifting drive mechanism 46. A number of evenly distributed air nozzles 471 are installed horizontally on the profile frame 47. Each air nozzle 471 is connected to an external air source for blowing air toward the packaging bags on the second conveyor belt 3 and / or the working surface 41. In actual production, there is a gap between every two adjacent pressure rollers 444, and an air nozzle 471 is configured at the gap. The gas blown out by the air nozzle 471 ensures the fit between the packaging bag and the working surface 41 and the second conveyor belt 3, and prevents the packaging bag from partially tilting during transportation. The air nozzle 471 is configured at the gap between every two adjacent pressure rollers 444, so that the air received by the packaging bag can be more evenly distributed.

[0045] In some practical applications, refer to Figures 4 and 5 As shown, the cutting assembly 45 mainly includes a heating wire 451, a connection terminal 452 and a lifting mechanism.

[0046] The heating wire 451 is positioned horizontally above the notch 411 of the working surface 41 (notch 411 primarily provides space for the heating wire 451 to move while cutting through the packaging bag). Two terminals 452 are provided, with each end of the heating wire 451 electrically connected to one of the two terminals 452. A lifting mechanism is mounted on the actuator end of the lifting drive mechanism 46 to drive the heating wire 451 longitudinally. Specifically, the lifting mechanism includes a linear actuator 453, mounted on the actuator end of the lifting drive mechanism 46 via a bracket, and a fixing member 454, mounted on the actuator end of the linear actuator 453. Both terminals 452 are mounted on the fixing member 454 (the linear actuator 453 is typically a linear cylinder).

[0047] In actual operation, the entire cutting assembly 45 is first moved close to the bag via the lifting drive mechanism 46, placing the heating wire 451 at a suitable height for effective contact with the bag. Next, the linear actuator 453 is activated, driving the fixing member 454 and the heating wire 451 downward in the longitudinal direction, bringing the heating wire 451 into contact with the bag. At this point, if the heating wire 451 is already energized and at a high temperature, its high temperature can quickly melt the bag, thus completing the bag severing operation.

[0048] In this embodiment, compared to traditional mechanical cutting methods (such as knife cutting), using heating wire 451 to melt the packaging bag does not produce cutting debris or other debris, keeping the work area relatively clean and reducing the burden of subsequent cleanup. In addition, the heating wire 451 has a faster cutting speed, which helps improve the efficiency of the entire packaging process.

[0049] Based on any of the above-mentioned embodiments, the packaging bag releasing and laying device also includes a winding roller for winding the packaging bag (woven bags are used in some practical applications), which is a prior art and is not shown in the figure. The winding roller is rotatably arranged on the first frame 6. Usually, in the process of producing or using woven bags, the woven bags will be wound on the winding roller in a certain way. The winding roller can release or collect the woven bags by rotating, providing a material basis for subsequent conveying operations, and its own structure and size must be adapted to the specifications of the wound woven bags.

[0050] The wire roller assembly 62 (which is a conventional design method in the prior art, Figures 1 to 3Only one embodiment is illustrated in the figure, and its specific structure and principle will not be described in detail here), which plays a key role in guiding and assisting the transportation of packaging bags. Several wire rollers are distributed on the conveying path. They generally change the conveying direction of the woven bag, adjust its tension, and ensure that the woven bag can move smoothly along the predetermined route through their own rotation. The wire rollers in different positions can be set in angles, heights, etc. according to actual needs, and work together with the woven bag winding roller to enable the woven bag to move toward the set target position in an orderly manner, that is, to enable the woven bag to enter between the first conveying roller 42 and the pressure roller 43. The rotation of the woven bag winding roller is often powered by an external drive device (such as a power source such as a motor), so that it can rotate at a certain speed and direction, thereby gradually releasing the woven bag wound on it to start transportation.

[0051] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A packaging bag releasing and laying device, comprising a first conveyor belt (1) and a second conveyor belt (3) arranged at the output end of the first conveyor belt (1), wherein the first conveyor belt (1) is used to convey a first object to be packaged, and the second conveyor belt is used to receive the first object on the first conveyor belt (1), characterized in that: Also includes: A feeding and cutting device (4), which has a working surface (41) and is located between the first conveyor belt (1) and the second conveyor belt (3), and the feeding and cutting device (4) further includes: A first conveying roller (42) is driven to rotate by power and is at least partially located above the working surface (41); a pressing roller (43) disposed beside the first conveying roller (42) to press the packaging bag passing between the pressing roller (43) and the first conveying roller (42) against the first conveying roller (42); A floating pressing wheel assembly (44) is driven by power to move upward and downward above the working surface (41) so as to elastically press the packaging bag passing over the first conveying roller (42) onto the first conveying roller (42); The cutting assembly (45) is used to cut the packing bag on the working surface (41).

2. The device for releasing the bottom of a packing bag according to claim 1, characterized in that: The feeding and cutting device (4) further comprises a lifting drive mechanism (46) for driving the floating pressing wheel assembly (44) to move upward and downward.

3. The device for releasing the bottom of a packing bag according to claim 2, characterized in that: The floating pressure wheel assembly (44) comprises: The mounting frame (441) is configured in two groups and is relatively arranged at the execution end of the lifting drive mechanism (46); The floating seats (442) are provided in two groups and are respectively connected to the two mounting frames (441) in a longitudinal sliding manner. Each group of floating seats (442) is elastically connected to the corresponding mounting frame (441) in its sliding direction. The shaft (443) has two ends connected to the two floating seats (442) by bearings, and the shaft (443) is also rotatably sleeved with a plurality of pressing wheels (444); The adjustment assembly is configured in two groups for adjusting the elastic force exerted on the two groups of floating seats (442).

4. The device for releasing the bottom of a packing bag according to claim 3, characterized in that: The adjustment component includes: An adjustment plate (445) is longitudinally slidably connected to the mounting frame (441) and is located above the floating seat (442); an elastic member (446) elastically connected between the adjustment plate (445) and the floating seat (442); An adjusting bolt (447) has a threaded end passing through the mounting frame (441) and threadedly connected thereto, and the threaded end abuts against the upper end of the adjusting plate (445) to adjust the position of the adjusting plate (445) within the mounting frame (441).

5. The device for releasing the bottom of a packing bag according to claim 2, characterized in that: The execution end of the lifting drive mechanism (46) is also equipped with a profile frame (47), and a plurality of evenly distributed air nozzles (471) are transversely mounted on the profile frame (47), and each air nozzle (471) is connected to an external air source for blowing air toward the packaging bags on the second conveyor belt (3) and / or the working surface (41).

6. The device for releasing the bottom of a packing bag according to claim 3, characterized in that: The execution end of the lifting drive mechanism (46) is also equipped with a profile frame (47), and a plurality of evenly distributed air nozzles (471) are transversely installed on the profile frame (47), each air nozzle (471) is connected to an external air source for blowing toward the packaging bags on the second conveyor belt (3) and / or the working surface (41), and there is a gap between each two adjacent pressing wheels (444) and one of the air nozzles (471) is arranged at the gap.

7. The device for releasing the bottom of a packing bag according to claim 2, characterized in that: The cutting assembly (45) comprises: The heating wire (451) is arranged horizontally just above the notch (411) of the working surface (41); There are two connection terminals (452), and the two ends of the heating wire (451) are electrically connected to the two connection terminals (452) respectively; The lifting mechanism is installed at the execution end of the lifting drive mechanism (46) and is used to drive the heating wire (451) to move longitudinally.

8. The device for releasing the bottom of a packing bag according to claim 7, characterized in that: The lifting mechanism comprises: A linear actuator (453) is mounted on the execution end of the lifting drive mechanism (46) via a bracket; A fixing member (454) is mounted on the execution end of the linear drive (453), and the two wiring terminals (452) are both mounted on the fixing member (454).

9. The device for releasing the bottom of a packing bag according to claim 3, characterized in that: The first conveying roller (42), the pressing roller (43) and the plurality of pressing wheels (444) are all configured as rubber roller structures.

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