Paging device for packaging bag labeling machine

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a paging device for a packaging bag labeling machine. Comprising a bag containing area used for containing stacked packaging bags. The first conveying belt is used for conveying the packaging bag at the bottommost part, the first conveying belt comprises a negative pressure belt, and a plurality of through holes are formed in the negative pressure belt; the shell is arranged below the first conveying belt and provided with a connector used for being communicated with negative pressure equipment, and adsorption force can be generated on the packaging bag at the bottommost portion through the through hole. The second arc-shaped plate is arranged at the discharging end of the bag containing area, located above the first conveying belt and used for blocking other packaging bags above the packaging bag when the packaging bag at the bottommost portion is taken away by the first conveying belt. The packaging bag separating and conveying device can separate and convey packaging bags at the bottommost part in a negative pressure adsorption mode, the problem that in a traditional friction force paging mode, paging is inaccurate and unstable due to the fact that friction force between the bags is too large is effectively solved, and paging efficiency and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a paging device for a packaging bag labeling machine. Background Technology

[0002] Labeling stacked bags individually is a common process on packaging production lines. To achieve automation and high-efficiency production, a piecing device is typically used to separate the stacked bags one by one and accurately convey them to the labeling machine for further processing. Therefore, the performance of the piecing device directly affects the efficiency and accuracy of the entire labeling process.

[0003] Currently, most common paging devices in existing technology use the principle of friction to separate packaging bags. These devices typically apply forward friction to the bottom packaging bag through a bottom conveyor mechanism, while simultaneously applying pressure to the top of the stack of packaging bags to increase the friction between the conveyor mechanism and the bottom packaging bag, thereby achieving the purpose of separating the bottom packaging bag from the stack.

[0004] However, this friction-based paging method has significant technical problems. To ensure the efficient transport of the bottom bag, considerable pressure is often applied to the stacked bags using elastic clamps or similar methods to increase the friction between the conveying mechanism and the bottom bag. However, this pressure not only affects the bottom bag but also increases the friction between it and the adjacent bags above it. When the surface friction coefficient of the bags is already high, this increased inter-bag friction severely hinders effective bag separation, making it difficult for the paging device to accurately and stably separate individual bags. This affects the smooth operation of subsequent labeling processes, reducing production efficiency and automation levels. Therefore, existing technologies urgently need improvement to address these issues. Utility Model Content

[0005] This utility model discloses a paging device for a packaging bag labeling machine, which aims to solve the technical problem that existing friction-based paging devices are prone to inaccurate and unstable paging due to excessive friction between bags when processing packaging bags with a large surface friction coefficient, thereby affecting production efficiency and automation level.

[0006] The technical solution of this utility model is as follows:

[0007] A paging device for a packaging bag labeling machine includes: a bag placement area for placing stacked packaging bags; a first conveyor belt disposed at the bottom of the bag placement area for conveying the bottommost packaging bag among the stacked packaging bags, the first conveyor belt including a negative pressure belt with multiple through holes; a housing disposed below the first conveyor belt and engaging with the lower surface of the negative pressure belt, the housing having a connector for connecting to a negative pressure device to generate an adsorption force on the bottommost packaging bag through the through holes, adsorbing the bottommost packaging bag onto the negative pressure belt; and a second arc-shaped plate disposed at the discharge end of the bag placement area and above the first conveyor belt, for blocking other packaging bags above the bottommost packaging bag when it is carried away by the first conveyor belt.

[0008] This technical solution utilizes negative pressure adsorption to separate and transport the bottommost packaging bag, effectively avoiding the problems of inaccurate and unstable paging caused by excessive friction between bags in traditional friction-based paging methods, and significantly improving the efficiency and accuracy of paging.

[0009] Furthermore, the paging device for the packaging bag labeling machine also includes a frame and an adjustment assembly; the adjustment assembly includes a support plate fixed to the frame, a threaded sleeve fixed to the second arc-shaped plate, and a screw passing through the support plate and threadedly connected to the threaded sleeve; the support plate is provided with an arc-shaped groove for the screw to slide.

[0010] More specifically, in some embodiments, the paging device for the packaging bag labeling machine further includes a first arc plate disposed at the discharge end of the bag placement area; one end of the second arc plate is hinged to the first arc plate.

[0011] Preferably, the piecing device for the packaging bag labeling machine further includes a second conveyor belt and a connecting plate; the second conveyor belt is disposed at the discharge end of the first conveyor belt; and the connecting plate is disposed between the first conveyor belt and the second conveyor belt.

[0012] In some embodiments, the upper end of the housing is an opening; the housing also includes sealing brushes disposed on both sides of the opening, the sealing brushes abutting against the negative pressure band.

[0013] Furthermore, the bagging area also includes two side baffles and a placement plate disposed between the two side baffles; the bagging area is enclosed by the first arc-shaped plate, the placement plate and the two side baffles.

[0014] Preferably, the placement plate has a mating groove, and one end of the first conveyor belt is inserted into the mating groove.

[0015] In some embodiments, the first conveyor belt further includes two rollers rotatably disposed within the housing, and the negative pressure belt is sleeved on the two rollers.

[0016] Furthermore, the first arc-shaped plate is fixed between the two side baffles.

[0017] Preferably, the screw includes a head that abuts against the side of the support plate away from the threaded sleeve. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the paging device for a packaging bag labeling machine.

[0019] Figure 2 This is a partial structural diagram of the paging device used in a packaging bag labeling machine.

[0020] Figure 3 This is a schematic diagram of a paging device used by a packaging bag labeling machine to paginate packaging bags.

[0021] Figure 4 for Figure 3 Enlarged view of section A in the middle.

[0022] Figure 5 This is a schematic diagram of the connection structure between the first conveyor belt and the outer casing.

[0023] Figure 6 This is a schematic diagram of the bottom structure of the outer shell.

[0024] The following are the labeling elements in the figure:

[0025] 1. Frame; 11. Side baffle; 12. Placement plate; 2. First conveyor belt; 21. Roller; 22. Negative pressure belt; 221. Through hole; 3. Housing; 31. Joint; 32. Sealing brush plate; 4. Second conveyor belt; 51. First arc plate; 52. Second arc plate; 53. Connecting plate; 6. Adjustment assembly; 61. Threaded sleeve; 62. Screw; 63. Support plate; 631. Arc groove; 7. Packaging bag. Detailed Implementation

[0026] Most existing paging devices use friction to separate packaging bags. These devices typically apply forward friction to the bottom bag via a bottom conveyor mechanism, while simultaneously applying pressure to the top of the stack to increase friction between the conveyor and the bottom bag, thus separating the bottom bag from the stack. This friction-based paging method has significant technical problems. To ensure effective conveying of the bottom bag, considerable pressure is often applied to the stack using elastic clamps to increase friction between the conveyor and the bottom bag. However, this pressure not only affects the bottom bag but also increases friction between it and the adjacent bags above it. When the surface friction coefficient of the bags is already high, this increased inter-bag friction severely hinders effective separation, making it difficult for the paging device to accurately and stably separate individual bags. This affects subsequent labeling processes, reducing production efficiency and automation levels.

[0027] Based on this, in order to improve the technical problem in the related technology that the increased friction between the conveyor belt and the packaging bag by squeezing the packaging bag makes it difficult for the packaging bags to separate, the embodiments of this application provide the following solution.

[0028] The following combination Figures 1-6 This application will be described in further detail.

[0029] The piecing device for the packaging bag labeling machine of this application, by introducing an adsorption separation mechanism, can more reliably achieve sheet-by-sheet separation of packaging bags. Specifically, the device includes a bag placement area for placing stacked packaging bags 7; a first conveyor belt 2, located at the bottom of the bag placement area, for conveying the bottommost packaging bag 7, wherein the first conveyor belt 2 includes a negative pressure belt 22 with multiple through holes 221; a housing 3, located below the first conveyor belt 2 and cooperating with the lower surface of the negative pressure belt 22, the housing 3 being provided with a connector 31 for connecting to a negative pressure device, so as to generate an adsorption force on the bottommost packaging bag 7 through the through holes 221, adsorbing it onto the negative pressure belt 22; and a second arc-shaped plate 52, located at the discharge end of the bag placement area and above the first conveyor belt 2, for effectively blocking other packaging bags 7 above the bottommost packaging bag 7 when it is carried away by the first conveyor belt 2.

[0030] The bag placement area is used to initially place a large number of stacked packaging bags 7; the first conveyor belt 2 is a key component responsible for separating the bottom packaging bag 7 from the stack and conveying it forward; the negative pressure belt 22 is a component of the first conveyor belt 2, and its surface has through holes 221, which is the basis for realizing negative pressure adsorption; the housing 3 cooperates with the negative pressure belt 22 to form a negative pressure cavity and connects to the external negative pressure equipment; the connector 31 is an interface on the housing 3 for connecting the negative pressure equipment; the second arc plate 52 serves as a mechanical blocking structure to ensure that when the bottom packaging bag 7 is conveyed away, other packaging bags 7 above it can be effectively blocked, preventing multiple bags from being output at the same time.

[0031] The working process of the paging device for the packaging bag labeling machine in this embodiment can be fully described as follows in practical applications:

[0032] First, the stacked packaging bags 7 to be labeled are placed in the bag placement area. These packaging bags 7 are neatly stacked in the bag placement area, with the bottom packaging bag 7 in contact with the negative pressure belt 22 of the first conveyor belt 2 located at the bottom of the bag placement area.

[0033] Next, the external negative pressure device connects to the housing 3 via connector 31 and provides negative pressure to the interior of the housing 3. Since the housing 3 is positioned below the first conveyor belt 2 and fits tightly against the lower surface of the negative pressure belt 22, the generated negative pressure is applied to the bottommost packaging bag 7, which is in contact with the negative pressure belt 22, through multiple through holes 221 on the belt. As a result, the bottommost packaging bag 7 is firmly adhered to the surface of the negative pressure belt 22. This adhesion ensures sufficient force between the packaging bag 7 and the negative pressure belt 22 for reliable movement.

[0034] Subsequently, the first conveyor belt 2 is driven, and its negative pressure belt 22 begins to circulate. As the bottommost packaging bag 7 is attracted to the negative pressure belt 22, it moves forward with the movement of the negative pressure belt 22, thereby achieving separation from the stack.

[0035] As the bottommost packaging bag 7 is carried away by the first conveyor belt 2, the second arc-shaped plate 52, located at the discharge end of the bag-holding area and above the first conveyor belt 2, plays a crucial blocking role. The height and position of the second arc-shaped plate 52 are precisely set so that only the bottommost packaging bag 7, which is being attracted, can pass through smoothly, while other packaging bags 7 above it are effectively blocked by the second arc-shaped plate 52 and cannot be carried away with the bottommost packaging bag 7. This ensures that only one packaging bag 7 is separated and conveyed out at a time.

[0036] Once the bottommost packaging bag 7 is completely detached from the stack and conveyed to the discharge end by the first conveyor belt 2, it can be sent to the subsequent labeling station for processing. Through this paging mechanism that combines adsorption and blocking, the device of this embodiment can effectively handle packaging bags 7 with different materials and surface properties. Its advantages are particularly obvious when handling packaging bags 7 with a high coefficient of surface friction, thereby overcoming the limitations of pure friction paging in the prior art.

[0037] The paging device for the packaging bag labeling machine of this application also includes a frame 1 and an adjustment assembly 6. The frame 1 serves as the supporting structure for the entire paging device. The adjustment assembly 6 is the core component for adjusting the position of the second arc-shaped plate 52, and includes a support plate 63 fixed to the frame 1, a threaded sleeve 61 fixed to the second arc-shaped plate 52, and a screw 62 passing through the support plate 63 and threadedly connected to the threaded sleeve 61. The support plate 63 further has an arc-shaped groove 631 for the screw 62 to slide. The paging device for the packaging bag labeling machine also includes a first arc-shaped plate 51, which is disposed at the discharge end of the bag placement area; one end of the second arc-shaped plate 52 is hinged to the first arc-shaped plate 51. The screw 62 includes a head, which abuts against the side of the support plate 63 away from the threaded sleeve 61.

[0038] One end of the second arc-shaped plate 52 is hinged to the first arc-shaped plate 51, meaning that the second arc-shaped plate 52 can rotate or swing relative to the first arc-shaped plate 51 around the hinge point. The solution of this application introduces an adjustment component 6, allowing the position of the second arc-shaped plate 52 to be precisely adjusted according to actual needs. When it is necessary to adjust the height or angle of the second arc-shaped plate 52, the screw 62 is rotated to loosen the contact between the screw head and the support plate 63. Then, the second arc-shaped plate 52 is rotated, causing the threaded sleeve 61 and the screw 62 to rotate. The screw 62 slides within the arc-shaped groove 631. After rotating the second arc-shaped plate 52 to the appropriate position, the screw 62 is tightened, causing it to abut against the support plate 63, thus fixing the second arc-shaped plate 52. This ensures that its lower edge maintains an optimal blocking gap with the top of the packaging bag 7 currently being paginated, thereby ensuring that the bottom packaging bag 7 can be smoothly carried away by the first conveyor belt 2, while other packaging bags 7 above it are effectively blocked. Through the above technical solution, the paging device for the packaging bag labeling machine of this application can significantly improve the adaptability to packaging bags 7 of different specifications.

[0039] Based on the above-described embodiments of this application, in order to achieve a smooth transition and continuous conveying of the packaging bag 7, this application proposes an improved solution, namely, setting a second conveyor belt 4 at the discharge end of the first conveyor belt 2, and using a connecting plate 53 to connect the first conveyor belt 2 and the second conveyor belt 4, thereby ensuring that the packaging bag 7 can smoothly transition from the first conveyor belt 2 to the second conveyor belt 4, and achieving the purpose of continuous conveying.

[0040] The second conveyor belt 4 receives the packaging bags 7 from the first conveyor belt 2 and continues to transport them to subsequent workstations, such as the labeling station. A connecting plate 53 is positioned between the first conveyor belt 2 and the second conveyor belt 4 to ensure a smooth transition and prevent the packaging bags 7 from getting stuck or tilting between the two conveyor belts. Specifically, the connecting plate 53 can have an inclined structure, allowing the packaging bags 7 to slide smoothly onto the second conveyor belt 4 along the inclined surface.

[0041] In some embodiments, the upper end of the housing 3 is an opening, and the housing 3 also includes sealing brush plates 32 disposed on both sides of the opening. The sealing brush plates 32 abut against the negative pressure belt 22. By providing sealing brush plates 32 at the opening of the housing 3, the sealing performance of the housing 3 can be enhanced, thereby improving the adsorption effect.

[0042] Among them, the sealing brush plate 32 refers to a plate-shaped structure with bristles. The bristles can be made of materials such as nylon, plastic or metal. The length and density of the bristles can be adjusted according to actual needs. The main function of the sealing brush plate 32 is to enhance the sealing of the housing 3 and prevent air from entering from the opening of the housing 3, thereby ensuring that the adsorption force generated by the negative pressure device can effectively act on the packaging bag 7, thereby improving the adsorption effect and preventing the packaging bag 7 from falling off.

[0043] In some embodiments of this application, the bag placement area further includes two side baffles 11 and a placement plate 12 disposed between the two side baffles 11. The bag placement area is enclosed by the first arc-shaped plate 51, the placement plate 12, and the two side baffles 11. By adding the side baffles 11 and the placement plate 12, the structure of the bag placement area can be further standardized, thereby ensuring the stability of the packaging bag 7 and avoiding problems such as tipping over.

[0044] The side baffles 11 limit the packaging bag 7 from both sides to prevent it from slipping off. The placement plate 12 provides a stable support surface for the packaging bag 7, preventing it from directly contacting the ground and ensuring the cleanliness of the bottom of the bag 7. The first arc-shaped plate 51 is located at the discharge end of the bag placement area and can effectively guide the packaging bag 7 into the subsequent paging mechanism.

[0045] In some embodiments of this application, a mating groove is provided on the placement plate 12, and one end of the first conveyor belt 2 is inserted into the mating groove. Through the mating groove and the first conveyor belt 2, mutual interference between the two can be avoided, and the normal operation of the first conveyor belt 2 can be guaranteed.

[0046] The mating groove refers to a recessed structure formed on the placement plate 12 to accommodate the end of the first conveyor belt 2. Specifically, the size and shape of the mating groove should match the end of the first conveyor belt 2 to ensure that the first conveyor belt 2 can be smoothly inserted into the mating groove without jamming.

[0047] In some embodiments, the first conveyor belt 2 further includes two rollers 21, which are rotatably mounted within the housing 3, and a negative pressure belt 22 is sleeved on the two rollers 21. This structural design allows the negative pressure belt 22 to operate more stably, reducing page-separating failures caused by slackness or misalignment of the negative pressure belt 22. The rollers 21 here serve to support and drive the negative pressure belt 22, ensuring its smooth operation.

[0048] In some embodiments of this application, the first arc-shaped plate 51 is fixed between two side baffles 11. In this way, the structural strength and stability of the bag-holding area can be improved, ensuring its normal operation.

[0049] Specifically, the first arc-shaped plate 51 can be fixed between the two side baffles 11 in various ways. For example, it can be fixed by screws, welding, or adhesive. By fixing the first arc-shaped plate 51 between the two side baffles 11, the overall structural strength of the bag-holding area can be improved, preventing deformation or loosening during use. In addition, this fixing method can also ensure the stability of the position of the first arc-shaped plate 51, thereby ensuring that it can accurately block the packaging bag 7 above, improving the accuracy and reliability of paging.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A paging device for a packaging bag labeling machine, characterized in that, include: The bag storage area is used to place stacked packaging bags (7); The first conveyor belt (2) is located at the bottom of the bag placement area and is used to transport the bottommost packaging bag (7) among the stacked packaging bags (7). The first conveyor belt (2) includes a negative pressure belt (22) and the negative pressure belt (22) has multiple through holes (221). The housing (3) is located below the first conveyor belt (2) and cooperates with the lower surface of the negative pressure belt (22). The housing (3) is provided with a connector (31) for connecting the negative pressure equipment, so as to generate an adsorption force on the bottom packaging bag (7) through the through hole (221) and adsorb the bottom packaging bag (7) onto the negative pressure belt (22). The second arc-shaped plate (52) is disposed at the discharge end of the bag placement area and is located above the first conveyor belt (2) to block other packaging bags (7) above it when the bottommost packaging bag (7) is taken away by the first conveyor belt (2).

2. The paging device for a packaging bag labeling machine according to claim 1, characterized in that, It also includes a frame (1) and an adjustment assembly (6); the adjustment assembly (6) includes a support plate (63) fixed to the frame (1), a threaded sleeve (61) fixed to the second arc plate (52), and a screw (62) passing through the support plate (63) and threadedly connected to the threaded sleeve (61); the support plate (63) is provided with an arc groove (631) for the screw (62) to slide.

3. The paging device for a packaging bag labeling machine according to claim 1, characterized in that, It also includes a first arc plate (51), which is disposed at the discharge end of the bag-holding area; one end of the second arc plate (52) is hinged to the first arc plate (51).

4. The paging device for a packaging bag labeling machine according to claim 1, characterized in that, It also includes a second conveyor belt (4) and a connecting plate (53); the second conveyor belt (4) is disposed at the discharge end of the first conveyor belt (2); the connecting plate (53) is disposed between the first conveyor belt (2) and the second conveyor belt (4).

5. The paging device for a packaging bag labeling machine according to claim 1, characterized in that, The upper end of the housing (3) is an opening; the housing (3) also includes sealing brush plates (32) disposed on both sides of the opening, and the sealing brush plates (32) abut against the negative pressure belt (22).

6. The paging device for a packaging bag labeling machine according to claim 3, characterized in that, The bag-holding area also includes two side baffles (11) and a placement plate (12) disposed between the two side baffles (11); the bag-holding area is formed by the first arc-shaped plate (51), the placement plate (12) and the two side baffles (11).

7. The paging device for a packaging bag labeling machine according to claim 6, characterized in that, The placement plate (12) has a mating groove, and one end of the first conveyor belt (2) is inserted into the mating groove.

8. The paging device for a packaging bag labeling machine according to claim 1, characterized in that, The first conveyor belt (2) also includes two rollers (21), which are rotatably disposed inside the housing (3), and the negative pressure belt (22) is sleeved on the two rollers (21).

9. The paging device for a packaging bag labeling machine according to claim 6, characterized in that, The first arc-shaped plate (51) is fixed between the two side baffles (11).

10. The paging device for a packaging bag labeling machine according to claim 2, characterized in that, The screw (62) includes a head that abuts against the side of the support plate (63) away from the threaded sleeve (61).

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