A bagging device

Abstract

A bagging device includes a conveyor belt, a transfer table, a pushing mechanism, and a bag-supporting mechanism. The bag-supporting mechanism includes an adsorption component, two bag-supporting plates, and an upper pressure plate. The adsorption component is used to adsorb the upper and lower sides of the bag opening to open the bag; the two bag-supporting plates are positioned corresponding to the bag opening, with their front ends extending into and supporting the bag opening; the upper pressure plate is vertically and vertically positioned above the two bag-supporting plates to squeeze the material from above. Through the cooperation of the upper pressure plate and the bag-supporting plates, the material is squeezed simultaneously from above and both sides during the material pushing process, so that materials thicker than the opening size of the bag are gradually thinned to a state where they can smoothly enter the bag, solving the technical problem that ultra-thick materials cannot be automatically bagged.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically to a bagging device. Background Technology

[0002] In material packaging production lines, bagging devices are used to push materials into packaging bags. Existing bagging devices typically include a conveyor belt for transporting packaging bags, a conveyor table for transporting materials, a transfer table connecting the conveyor belt and the conveyor table, and a pushing mechanism for pushing materials into the packaging bags. Before pushing the materials, the bag opening needs to be opened by a bag-opening mechanism to allow the materials to enter smoothly.

[0003] Existing bag-opening mechanisms, such as the one disclosed in Chinese patent CN224131463U, involve a bag-opening plate extending into the bag opening and swinging outwards to open the bag opening; Chinese patent CN218929979U discloses a bag-opening rod extending into the bag and rotating to open the bag opening. These prior art bag-opening mechanisms only have the function of opening the bag opening, and their applicability is contingent upon the material thickness being less than or equal to the height of the bag opening after it is opened.

[0004] However, in actual production, the thickness of some materials (such as fluffy food and textiles) exceeds the height of the packaging bag after the opening is opened. For such materials, existing bag-holding mechanisms cannot allow them to enter the packaging bag smoothly, often resulting in material jamming, bag tearing, or failure to complete bagging. Existing technologies, such as Chinese patent CN217918746U, use microswitches to detect the material height, triggering a stop when the material deformation exceeds the limit, requiring manual intervention. This method cannot fundamentally solve the problem of automatic bagging of excessively thick materials, seriously affecting production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a bagging device to solve the technical problem in the prior art that materials with a thickness greater than the opening size of the packaging bag cannot be smoothly pushed into the packaging bag.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a bagging device, including a conveyor belt, a transfer platform, a pushing mechanism, and a bag-supporting mechanism. The conveyor belt is used to transport packaging bags; the transfer platform is connected to the conveyor belt; the pushing mechanism is disposed on the transfer platform and is used to push materials into the packaging bag; the bag-supporting mechanism is disposed on one side of the conveyor belt. The bag-supporting mechanism includes an adsorption component, two bag-supporting plates, and an upper pressure plate. The adsorption component is used to adsorb the upper and lower sides of the bag opening of the packaging bag to open the bag opening; the two bag-supporting plates are disposed corresponding to the bag opening opened by the adsorption component, and the front end of the bag-supporting plate is used to extend into and support the bag opening after the bag opening is opened; the upper pressure plate is vertically and vertically disposed above between the two bag-supporting plates and is used to squeeze the material from above.

[0007] Preferably, along the material pushing direction, a compression channel with gradually decreasing spacing is formed between the two bag support plates to compress the sides of the material and reduce its thickness to adapt to the bag opening height.

[0008] Preferably, the two bag support plates include a receiving part, a squeezing part and an inlet part in sequence along the material pushing direction. The receiving part forms an opening for the material to enter. The spacing between the squeezing parts gradually decreases along the material pushing direction. The inlet part is used to extend into and support the bag opening of the packaging bag.

[0009] Preferably, the top of the bag support plate is provided with an upper pressure strip extending inward, the upper pressure strip at least covering the extrusion part and the inlet part.

[0010] Preferably, the bag support plate has an extension plate protruding downward from the lower side of the extrusion section and / or the lower side of the inlet section, and the lower end of the extension plate has a pressure strip, with a gap between the pressure strip and the adsorption component for the tongue of the packaging bag to pass through.

[0011] Preferably, the receiving part, extrusion part, inlet part, upper pressure strip, extension plate and lower pressure strip of the bag support plate are integrally cut and bent from the same sheet material.

[0012] Preferably, the end of the upper pressure plate away from the conveyor belt has an upwardly curved arc.

[0013] Preferably, the device also includes a mounting bracket, on which a fifth driving component is provided, and the upper pressure plate is connected to the movable end of the fifth driving component, and is driven to lift and lower by the fifth driving component.

[0014] Preferably, the two bag-supporting plates are respectively disposed on the corresponding rotating arms, and the two rotating shafts are respectively fixedly disposed on the movable ends of the corresponding rotating arms. The bag-supporting mechanism also includes two movable seats, which are movably disposed above the bag-supporting plates. The rotating shafts are rotatably disposed on the corresponding movable seats. The movable seats are provided with a fourth driving member, which is connected to the rotating shafts for driving the bag-supporting plates to rotate.

[0015] Preferably, a mounting block is rotatably mounted on the movable seat, the fourth driving member is mounted on the mounting block, and a swing arm is fixedly mounted on the upper end of the rotating shaft, with the movable end of the swing arm hinged to the movable end of the fourth driving member.

[0016] The beneficial effects of this utility model are: 1. By setting up an adjustable upper pressure plate, in conjunction with two bag support plates, the material is squeezed from above and both sides during the material pushing process. This gradually thins the material, which is thicker than the opening size of the packaging bag, so that it can be smoothly put into the packaging bag. This solves the technical problem that ultra-thick materials cannot be automatically bagged. 2. Along the material pushing direction, a compression channel with a gradually decreasing gap is formed between the two bag support plates. During the pushing process, the material is gradually squeezed on both sides, and the thickness is reduced evenly. This avoids the material from shifting or being damaged due to sudden pressure, and ensures the smoothness and stability of the bagging process. 3. The bag support plate integrates the receiving section, extrusion section and inlet section, which guides and extrudes the material while opening the bag opening. It combines the bag support and material pretreatment functions into one, with a compact structure and no need to set up an additional independent material pretreatment device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a utility model Figure 1 Enlarged view of point A.

[0018] In the diagram: 1. Conveyor belt; 2. Transfer table; 3. Pushing mechanism; 31. Pushing component; 32. First driving component; 4. Bag supporting mechanism; 41. Adsorption assembly; 411. Suction seat; 412. Suction nozzle; 413. Second driving component; 42. Bag supporting plate; 421. Receiving part; 422. Extrusion part; 423. Inlet part; 424. Upper pressure bar; 425. Extension plate; 426. Lower pressure bar; 43. Upper pressure plate; 431. Arc end; 44. Rotating arm; 45. Rotating shaft; 46. Moving seat; 47. Fourth driving component; 471. Mounting block; 472. Swing arm; 48. Mounting frame; 49. Fifth driving component; 5. Guide assembly; 51. Slide rod; 52. Adjusting screw; 53. Third driving component; 6. Conveying table; 7. Lower pressure plate. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0020] Example: Figures 1 to 2 The bagging device shown includes a conveyor belt 1, a conveyor table 6, a transfer table 2, a pushing mechanism 3, and a bag-supporting mechanism 4.

[0021] Conveyor belt 1 is used to transport packaging bags, which are laid flat on conveyor belt 1 with their tongues facing the bag-supporting mechanism 4. Conveyor platform 6 is used to transport materials to be packaged, which are transported in a single row or individually on conveyor platform 6. Transfer platform 2 is connected to both conveyor belt 1 and conveyor platform 6, and is used to receive materials transported from conveyor platform 6 and provide a pushing platform for pusher mechanism 3. The horizontal height of the platform of transfer platform 2 is slightly higher than the horizontal height of the upper surface of suction seat 411, so as to facilitate the smooth transfer of materials from transfer platform 2 into packaging bags.

[0022] The pushing mechanism 3 is mounted on the transfer table 2 and includes a pushing component 31 and a first driving component 32 that drives the pushing component 31 to push the material into the packaging bag. The first driving component 32 can be a linear module driven by a cylinder, an electric cylinder, or a motor. The pushing component 31 is connected to the movable end of the first driving component 32, and under the drive of the first driving component 32, it pushes the material on the transfer table 2 into the packaging bag on the conveyor belt 1.

[0023] The bag-opening mechanism 4 is located on one side of the conveyor belt 1 and is used to open the bag opening before the material is pushed into the bag by the pushing mechanism 3. The bag-opening mechanism 4 includes an adsorption component 41, two bag-opening plates 42 and an upper pressure plate 43.

[0024] The adsorption assembly 41 is used to adsorb the upper and lower sides of the bag opening of the packaging bag to open the bag opening. In this embodiment, the adsorption assembly 41 includes a suction seat 411 and at least two sets of suction nozzles 412. The suction seat 411 is disposed on one side of the conveyor belt 1, and has an internal air duct and is externally connected to a negative pressure generator (not shown in the figure). When the packaging bag is conveyed on the conveyor belt 1, its tongue is attached to the upper surface of the suction seat 411, and the suction seat 411 adsorbs the tongue of the packaging bag and the lower side area of ​​the bag opening through negative pressure. There are two sets of suction nozzles 412, which are vertically and vertically disposed on the mounting frame 48 by a second driving member 413 and are located above the suction seat 411. The second driving member 413 drives the suction nozzles 412 to descend to contact the upper side of the bag opening, and after the suction nozzles 412 adsorb the upper side of the bag opening through the external negative pressure source, they rise and cooperate with the suction seat 411 to open the bag opening. It should be noted that the specific structure of the adsorption component 41 is not limited to the combination of the suction seat 411 and the suction nozzle 412 described above. Any structure that can adsorb the upper and lower sides of the bag opening to open the bag can be used as an alternative to the adsorption component 41.

[0025] One end of the lower pressure plate 7 is located on the upper side of the suction seat 411, and a gap is provided between it and the suction seat 411 for the tongue of the packaging bag to pass through. The other end of the lower pressure plate 7 is located at the bottom of the outlet end of the transfer table 2, and is used to connect the transfer table 2 and the inner cavity of the packaging bag when the pushing mechanism 3 pushes the material into the packaging bag.

[0026] Two bag support plates 42 are positioned above the suction base 41, corresponding to the opening of the packaging bag opened by the suction assembly 41. Initially, the two bag support plates 42 are funnel-shaped with their openings facing the transfer table 2. At this time, the front ends of the bag support plates 42 (i.e., the ends of the inlet portions 423) are not directly above the opening of the packaging bag. When the suction nozzle 412 opens the packaging bag, the bag support plates 42 are driven by the drive mechanism to move and rotate, causing their inlet portions 423 to extend from both sides of the packaging bag into the opening and remain parallel to each other, thereby supporting the opening of the packaging bag and ensuring that the opening remains open during the material feeding process.

[0027] Along the material pushing direction, a compression channel with a gradually decreasing gap is formed between the two bag-supporting plates 42 to compress the sides of the material, reducing its thickness to accommodate the bag opening height. Specifically, the two bag-supporting plates 42 sequentially include a receiving section 421, a compression section 422, and an inlet section 423 along the material pushing direction. The receiving section 421 forms an opening for material to enter, and the gap between the receiving sections 421 of the two bag-supporting plates 42 is relatively large, facilitating smooth material entry. The gap between the compression sections 422 gradually decreases along the material pushing direction, used to gradually compress the sides of the material during the material pushing process, resulting in a uniform reduction in material thickness. The inlet section 423 extends into and supports the bag opening of the packaging bag, with its front ends parallel to each other and fitting against the sides of the bag opening. Material enters the packaging bag between the inlet sections 423 of the two bag-supporting plates 42.

[0028] The top of the bag support plate 42 is provided with an inwardly extending upper pressure strip 424, which at least covers the extrusion section 422 and the inlet section 423. The upper pressure strip 424 extrudes material from both sides and above during material feeding. The bag support plate 42 has an extension plate 425 protruding downwards from the lower side of the extrusion section 422 and / or the lower side of the inlet section 423, and a lower pressure strip 426 is provided at the lower end of the extension plate 425. A gap is left between the lower pressure strip 426 and the suction seat 411 to allow the bag tongue to pass through, ensuring that the bag support plate 42 can smoothly extend into the bag from above the bag tongue. During material feeding, the lower pressure strip 426, together with the lower pressure plate 7, supports the material, connecting the table surface of the transfer table 2 with the bottom of the inner cavity of the bag, preventing the material from pulling on the bag tongue during feeding.

[0029] In this embodiment, the receiving part 421, the extrusion part 422, the inlet part 423, the upper pressure strip 424, the extension plate 425 and the lower pressure strip 426 of the support plate 42 are integrally cut and bent from the same plate, which is simple to manufacture and has good structural strength.

[0030] The upper pressure plate 43 is vertically and flexibly positioned above the two bag-supporting plates 42. The end of the upper pressure plate 43 furthest from the conveyor belt 1 has an upwardly curved end 431, used to guide the material smoothly into the area below the upper pressure plate 43, preventing the material end from colliding with or getting stuck on the end face of the upper pressure plate 43. The other end of the upper pressure plate 43 is located above the suction seat 411, close to the opening of the packaging bag. A fifth drive component 49 is provided on the mounting frame 48, and the upper pressure plate 43 is connected to the movable end of the fifth drive component 49, which drives its lifting and lowering. During operation, the upper pressure plate 43 moves downward, applying pressure from above the material, working in conjunction with the upper pressure strip 424 of the bag-supporting plates 42 to squeeze the material on both sides and in the middle, uniformly reducing the overall thickness of the material and allowing it to smoothly enter the packaging bag.

[0031] The driving and mounting structure of the two bag-supporting plates 42 is as follows: The two bag-supporting plates 42 are respectively mounted on corresponding rotating arms 44. The bag-supporting plates 42 and the rotating arms 44 can be connected by fasteners such as bolts, which facilitates disassembly and maintenance. Two rotating shafts 45 are respectively fixedly mounted on the movable ends of the corresponding rotating arms 44. The bag-supporting mechanism 4 also includes two movable seats 46, which are movably mounted above the bag-supporting plates 42. The rotating shafts 45 are rotatably mounted on the corresponding movable seats 46, and the movable seats 46 are provided with a fourth driving member 47. Specifically, a mounting block 471 is rotatably mounted on the movable seat 46, the fourth driving member 47 is mounted on the mounting block 471, and a swing arm 472 is fixedly mounted on the upper end of the rotating shafts 45. The movable end of the swing arm 472 is hinged to the movable end of the fourth driving member 47. The fourth driving component 47 drives the rotating shaft 45 to rotate via the swing arm 472, which in turn drives the rotating arm 44 and the bag support plate 42 to rotate, causing the guide part 423 to switch between the working position of extending into the packaging bag and the initial position of leaving the packaging bag. The fourth driving component 47 can be a pneumatic cylinder or an electric cylinder.

[0032] The moving guide structure of the movable seat 46 is as follows: The bag-supporting mechanism 4 also includes a mounting frame 48, which is disposed between the conveyor belt 1 and the transfer table 2. The mounting frame 48 is provided with a third driving member 53 and a guide assembly 5. The third driving member 53 is used to drive the movable seat 46 to move along the guide assembly 5, thereby causing the bag-supporting plate 42 to move closer to or further away from the bag opening of the packaging bag. The mounting frame 48 is provided with a slide rod 51 and an adjusting screw 52. The guide assembly 5 is slidably disposed on the slide rod 51. The adjusting screw 52 is provided with a first threaded section and a second threaded section with opposite thread directions. The first threaded section is screwed to one of the guide assemblies 5, and the second threaded section is screwed to the other guide assembly 5. By rotating the adjusting screw 52, ​​the distance between the two bag-supporting plates 42 can be adjusted to accommodate packaging bags of different widths.

[0033] The working process of this utility model is as follows: The packaging bag is conveyed to the filling station by conveyor belt 1, and its tongue is attached to the upper surface of the suction seat 411 and is adsorbed and fixed. The suction nozzle 412 descends under the drive of the second drive member 413, adsorbs the upper side of the bag opening, and then rises to cooperate with the suction seat 411 to initially open the bag opening. At this time, the bag support plate 42 is in the initial flared state, and the guide part 423 has not extended into the bag opening.

[0034] The third drive unit 53 drives the movable seat 46 to move along the guide assembly 5 towards the packaging bag, causing the bag support plate 42 to move closer to the bag opening. Subsequently, the fourth drive unit 47 drives the rotating shaft 45 to rotate, causing the rotating arm 44 and the bag support plate 42 to rotate, so that the guide parts 423 of the two bag support plates 42 extend into the bag opening from both sides of the packaging bag and rotate to a parallel state, fully opening and supporting the bag opening.

[0035] Material is conveyed from conveyor 6 to transfer platform 2. The first drive component 32 of the pushing mechanism 3 drives the pushing component 31 to push the material towards the packaging bag. The material first enters between the receiving parts 421 of the two bag-supporting plates 42. As the pushing component 31 continues to push, the material enters between the extrusion parts 422. In the extrusion channel where the spacing between the extrusion parts 422 gradually decreases, the material is gradually squeezed on both sides, and the material thickness begins to decrease. At the same time, the upper pressure plate 43 descends under the drive of the fifth drive component 49, applying pressure to the material from above. It works in conjunction with the upper pressure strip 424 of the bag-supporting plate 42 to extrude pressure on both sides and the middle of the material from all directions. During the pushing process, the lower pressure plate 7 and the lower pressure strip 426 jointly support the material, connecting the platform of the transfer platform 2 with the bottom of the inner cavity of the packaging bag, preventing the material from pulling on the tongue of the packaging bag. The thickness of the material is gradually reduced during the pushing process, and finally it smoothly enters the packaging bag through the inlet 423.

[0036] After the material is completely inside the packaging bag, the upper pressure plate 43 rises and resets, the fourth drive component 47 drives the bag support plate 42 to rotate in the opposite direction and exit the bag opening, and the third drive component 53 drives the moving seat 46 to retract and reset, completing one work cycle. The conveyor belt 1 delivers the packaged bag filled with material, and the next empty packaged bag enters the workstation, repeating the above steps.

Claims

1. A bagging device, comprising: Conveyor belt (1), used for conveying packaging bags; Transfer station (2) is connected to the conveyor belt (1); The material pushing mechanism (3) is set on the transfer table (2) and is used to push the material into the packaging bag; A bag-supporting mechanism (4) is disposed on one side of the conveyor belt (1); The bag-supporting mechanism (4) is characterized in that it comprises: Adsorption component (41) is used to adsorb the upper and lower sides of the bag opening of the packaging bag to open the bag opening; Two bag support plates (42) are provided corresponding to the opening of the packaging bag opened by the adsorption component (41). The front end of the bag support plate (42) is used to extend into and support the opening of the packaging bag after the opening is opened. The upper pressure plate (43) is vertically and vertically positioned above the two support plates (42) for squeezing material from above.

2. The bagging device according to claim 1, characterized in that, Along the material pushing direction, a compression channel with gradually decreasing spacing is formed between the two bag support plates (42) to compress the material on both sides to reduce its thickness to adapt to the bag opening height.

3. The bagging device according to claim 2, characterized in that, The two bag support plates (42) include a receiving part (421), a squeezing part (422) and an inlet part (423) in sequence along the material pushing direction. The receiving part (421) forms an opening for material to enter. The spacing between the squeezing parts (422) gradually decreases along the material pushing direction. The inlet part (423) is used to extend into and support the bag opening of the packaging bag.

4. A bagging device according to claim 3, characterized in that, The top of the support plate (42) is provided with an upper pressure strip (424) extending inward, and the upper pressure strip (424) at least covers the extrusion part (422) and the inlet part (423).

5. A bagging device according to claim 4, characterized in that, The bag support plate (42) has an extension plate (425) protruding downward on the lower side of the extrusion part (422) and / or the lower side of the inlet part (423). The lower end of the extension plate (425) is provided with a pressure strip (426). A gap is left between the pressure strip (426) and the adsorption component (41) for the tongue of the packaging bag to pass through.

6. A bagging device according to claim 5, characterized in that, The receiving part (421), extrusion part (422), inlet part (423), upper pressure strip (424), extension plate (425) and lower pressure strip (426) of the bag support plate (42) are integrally cut and bent from the same plate.

7. A bagging device according to claim 1, characterized in that, The upper pressure plate (43) has an upward curved end away from the conveyor belt (1).

8. A bagging device according to claim 1, characterized in that, It also includes a mounting bracket (48), on which a fifth driving member (49) is provided. The upper pressure plate (43) is connected to the movable end of the fifth driving member (49) and is driven to lift by the fifth driving member (49).

9. A bagging device according to claim 1, characterized in that, Two bag-supporting plates (42) are respectively set on the corresponding rotating arms (44), and two rotating shafts (45) are respectively fixedly set on the movable ends of the corresponding rotating arms (44). The bag-supporting mechanism (4) also includes two movable seats (46). The movable seats (46) are movably set above the bag-supporting plates (42), and the rotating shafts (45) are rotatably set on the corresponding movable seats (46). The movable seats (46) are provided with a fourth driving member (47). The fourth driving member (47) is connected to the rotating shafts (45) for driving the bag-supporting plates (42) to rotate.

10. A bagging device according to claim 9, characterized in that, A mounting block (471) is rotatably mounted on the movable seat (46), and the fourth driving member (47) is mounted on the mounting block (471). A swing arm (472) is fixedly mounted on the upper end of the rotating shaft (45), and the movable end of the swing arm (472) is hinged to the movable end of the fourth driving member (47).

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