A spool unwinding foreign matter processing assembly

Abstract

The utility model relates to a packaging bag making technology field, concretely is a kind of foreign matter processing subassembly of unwinding shaft.The utility model discloses fixed frame, is provided with tackiness subassembly on fixed frame, tackiness subassembly has the tackiness area of horizontal arrangement upwards, this tackiness plane is arranged between upper film roll and lower film roll, on the visual angle of bird's eye view, the tackiness area protrudes to the outer periphery of upper film roll, to adhere the paper scrap that upper film roll place falls downwards.The utility model can collect the paper scrap that upper layer film roll falls, effectively avoid the situation that paper scrap falls to lower layer film roll and leads to the finished product of packaging bag unqualified.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag making technology, specifically a foreign object handling component for unwinding rolls. Background Technology

[0002] Packaging bags are bag-shaped containers used to hold goods, usually made of plastic film through printing, lamination, and bag-making processes. The forming process of traditional flat-mouth packaging bags is as follows: the plastic film is unwound by an unwinding mechanism, folded in half along the center line of the film, and then its side edges are heat-sealed to form the bag edge. At the same time, the bottom of the bag is heat-sealed perpendicular to the unwinding direction, and finally rolled up to form a finished packaging bag roll.

[0003] For the production of wide packaging bags, due to limitations in equipment specifications and the width of film raw materials, it is difficult to meet the width requirements of the finished product after folding a single roll of film. Therefore, for the production of such wide packaging bags, as described in the text entitled "Packaging Bag Making Process and Apparatus" in Chinese Patent Publication No. CN117325508A, two film rolls are unwound simultaneously, and the two sides are heat-sealed synchronously to form the bag edges.

[0004] In this bag-making process, the unwinding shaft is an expansion shaft that abuts against the paper core tube inside the film roll. The synchronous rotation between the film roll and the expansion shaft is maintained by the friction between the paper core tube and the unwinding shaft. Obviously, this installation method inevitably causes wear on the inner wall of the paper core tube, resulting in paper scraps that overflow from the end of the film roll. In the above arrangement of upper and lower roll molds, paper scraps falling from the upper roll will contaminate the surface of the lower roll. This not only leads to foreign matter inside the final product but may also affect the sealing quality due to contamination of the heat-sealing area, thus requiring immediate attention. Utility Model Content

[0005] In order to avoid and overcome the technical problems existing in the prior art, this utility model provides a foreign matter treatment component for unwinding the roll, which can collect paper scraps falling from the upper film roll and effectively prevent paper scraps from falling onto the lower film roll, thus causing the finished packaging bag to be unqualified.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A foreign matter handling assembly for unwinding rolls includes a fixing frame with an adhesive component on the fixing frame. The adhesive component has an adhesive area arranged horizontally upwards between an upper film roll and a lower film roll. In a top view, the adhesive area protrudes to the outer periphery of the upper film roll to adhere to paper scraps falling downwards from the upper film roll.

[0008] As a further embodiment of this utility model: the adhesive component includes a tray mounted on a fixed frame, an adhesive sheet placed on the upper surface of the tray, and an adhesive layer on the upper part of the adhesive sheet, which constitutes the adhesive area.

[0009] As a further embodiment of this utility model: the adhesive component includes a receiving cylinder with a tape outlet fixed on a fixing frame, and a tape roll that can be unwound from the tape outlet is arranged inside the receiving cylinder. The adhesive component also includes a take-up cylinder for taking up waste tape that is rotatably fitted on the fixing frame. The adhesive area is formed by the upper surface of a section of tape between the tape roll and the take-up cylinder.

[0010] As a further improvement of this utility model: one end of the receiving cylinder is a detachable end cap, and the inner wall of the other end of the receiving cylinder is coaxially fixed with an installation shaft that can be inserted into the tape roll.

[0011] As a further embodiment of this utility model: the take-up drum has detachable and fixed rods distributed in parallel, the end of the waste tape is fixed to the fixed rod, and the smooth side of the waste tape is wound around the outside of the take-up drum and the fixed rod to form a waste roll; there is a reserved gap between the fixed rod and the take-up drum so that after the fixed rod is removed, the reserved gap constitutes a disassembly gap for sliding disassembly of the waste roll.

[0012] As a further improvement of this utility model: one end of the fixing rod is fixed with a connector, and the connector is fixed to the end of the winding drum by bolts.

[0013] As a further improvement of this utility model: one end of the fixing rod is fixed with a connector, which is glued and fixed to the end of the winding drum.

[0014] As a further improvement of this utility model, a handwheel is coaxially fixed on the winding drum.

[0015] As a further embodiment of this utility model: a guide roller is installed on the fixing frame, the guide roller is arranged beside the take-up drum, and the upper surface of the take-up drum is at the same height as the edge of the tape outlet, and the lower surface of a section of tape between the tape roll and the take-up drum overlaps the upper surface of the guide roller.

[0016] As a further improvement of this utility model, a supporting walking part is fixed to the lower part of the fixed frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By arranging an adhesive component between the upper and lower film rolls, and using the horizontally upward-arranged adhesive area in the adhesive component to directly adhere to the paper scraps falling from the upper film roll, not only can the falling paper scraps be effectively intercepted, but the paper scraps can also be stably fixed through the adhesive action, preventing the paper scraps from falling off again due to airflow disturbance and contaminating the lower film roll, thus significantly reducing the defect rate of the finished packaging bags.

[0019] 2. The adhesive component uses a tray to hold the adhesive sheet, which is simple in structure and low in cost.

[0020] 3. The adhesive component uses a combination of a receiving cylinder and a take-up cylinder to achieve automatic unwinding of the tape and recycling of waste tape, enabling continuous renewal of the adhesive area and improving the convenience of tape replacement in the adhesive area.

[0021] 4. The winding drum has a pre-reserved gap between the fixing rod and the winding drum. After the fixing rod is removed, the wound waste roll can be easily detached, preventing the problem of the winding drum and the waste roll being tightly connected and difficult to disassemble.

[0022] 5. The removable design of the upper cover of the receiving cylinder, combined with the structure of the mounting shaft for inserting the tape roll, simplifies the tape roll replacement process.

[0023] 6. The bottom of the fixed frame is equipped with a support walking part, which can be moved as a whole to avoid the loading and unloading paths of the upper and lower film rolls, ensuring smooth operation during the replacement of the upper and lower film rolls. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0026] Figure 3 This is a side view of the winding drum in Embodiment 2 of this utility model.

[0027] Figure 4 This is a schematic diagram of the internal structure of the receiving cylinder in Embodiment 2 of this utility model.

[0028] Figure 5 This is a top view of the receiving cylinder in Embodiment 2 of this utility model.

[0029] Figure 6 This is a schematic diagram of the distribution structure of the upper and lower film rolls of this utility model.

[0030] In the diagram: 10. Fixed frame; 11. Support walking part; 20. Take-up drum; 21. Handwheel; 22. Fixed rod; 221. Connector; 222. Bolt; 30. Guide roller; 40. Receiving cylinder; 41. End cap; 42. Mounting shaft; 43. Tape outlet; 50. Tape roll; 60. Support plate; 61. Adhesive sheet; a1. Upper film roll; a2. Lower film roll. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] For ease of understanding, the specific structure and working method of this utility model are further described below with reference to the accompanying drawings:

[0033] The specific structure of this utility model is as follows: Figure 1-6 As shown, its main structure includes a fixing frame 10 and an adhesive component disposed on the fixing frame 10. The adhesive component has an adhesive area arranged horizontally upwards, such as... Figure 6 As shown, the adhesive plane is arranged between the upper film roll a1 and the lower film roll a2. From a top-down view, the adhesive area protrudes to the outer periphery of the upper film roll a1 to adhere to paper scraps falling downwards from the upper film roll a1. This method of using an adhesive area to adhere paper scraps ensures that the scraps are stably adhered and fixed as soon as they fall onto the adhesive area. While hindering the paper scraps from falling, it also achieves stable fixation of the scraps, preventing them from detaching from the adhesive component again under the influence of airflow and falling onto the lower film roll a2. This effectively avoids the situation where paper scraps falling onto the lower film roll a2 would result in defective finished packaging bags.

[0034] like Figure 1 , Figure 2 and Figure 6 As shown, to prevent the arrangement of the fixing frame 10 from affecting the loading and unloading of the upper film roll a1 and the lower film roll a2, a supporting traveling part 11 is fixed to the lower part of the fixing frame 10. The fixing frame 10 can be moved by the supporting traveling part 11 so that the fixing frame 10 avoids the loading and unloading channels of the upper film roll a1 and the lower film roll a2. Of course, in actual implementation, the fixing frame 10 can also be installed by means of threaded connection and disconnection with the frame of the unwinding mechanism. The fixing frame 10 can be disassembled when loading and unloading the upper film roll a1 and the lower film roll a2.

[0035] To facilitate understanding of the above technical solutions, this application provides the following two implementations of the adhesive component:

[0036] Example 1, such as Figure 1 As shown, the adhesive assembly includes a tray 60 mounted on a mounting frame 10. An adhesive sheet 61 is placed on the upper surface of the tray 60. The upper part of the adhesive sheet 61 has an adhesive layer, which forms the adhesive area. The way the adhesive sheet 61 is placed directly on the tray 60 can achieve a stable support effect for the adhesive sheet 61, and can be quickly replaced when the adhesiveness of the adhesive sheet 61 is insufficient.

[0037] Example 2, as Figure 2-5 As shown, the adhesive assembly includes a receiving cylinder 40 fixed on a fixing frame 10, which has a tape outlet 43 at its upper part. A tape roll 50 is arranged inside the receiving cylinder 40, from which tape can be unwound. The adhesive assembly also includes a take-up drum 20 rotatably fitted on the fixing frame 10 for winding waste tape. The upper surface of a section of tape between the tape roll 50 and the take-up drum 20 forms the adhesive zone. When the tape in the adhesive zone lacks sufficient adhesion, the tape roll 50 is unwound from the receiving cylinder 40, and the take-up drum 20 is rotated to wind up the waste tape in the adhesive zone onto the take-up drum 20. In other words, the take-up drum 20 and the receiving cylinder 40 respectively store waste tape and new tape, and the tape in the adhesive zone can be replaced simply by rotating the take-up drum 20, improving the efficiency of tape replacement.

[0038] It is worth mentioning that the way the aforementioned container cylinder 40 accommodates the tape roll 50 can prevent the tape roll 50 from generating waste during the unwinding process, thus preventing contamination of the lower die roll a2.

[0039] Based on the above, such as Figure 4 and Figure 5 As shown, one end of the receiving cylinder 40 is a detachable end cap 41. This detachable connection mechanism can be either a threaded connection or a snap-fit ​​connection, as is available in the prior art. The other end of the receiving cylinder 40 has a mounting shaft 42 coaxially fixed to its inner wall, which can be inserted into the tape roll 50. By removing the end cap 41, the core of the tape roll 50 can be pulled out from the mounting shaft 42, thus enabling the replacement of the tape roll 50. That is, after the tape roll 50 has been used up, the receiving cylinder 40 can still remain fixed to the fixing frame 10, and only a new tape roll 50 needs to be replaced.

[0040] Based on the above, such as Figure 3As shown, detachable fixing rods 22 are distributed parallel to each other on the take-up drum 20. The end of the waste tape is fixed to the fixing rod 22, and the smooth side of the waste tape is wound around the outside of the take-up drum 20 and the fixing rod 22 to form a waste roll. There is a reserved gap between the fixing rod 22 and the take-up drum 20 so that after the fixing rod 22 is removed, the reserved gap constitutes a disassembly gap for sliding disassembly of the waste roll. After the waste roll is wound up, by removing the fixing rod 22, the fixing rod 22 can slide freely relative to the take-up drum 20. At this time, the reserved gap between the fixing rod 22 and the take-up drum 20 can form a disassembly gap between the waste roll and the take-up drum 20 to facilitate sliding disassembly of the waste roll, which can prevent the waste roll from being tightly attached to the take-up drum 20 and making it difficult to disassemble.

[0041] Specifically, such as Figure 3 As shown, the detachable installation method of the fixing rod 22 and the take-up drum 20 can be implemented in various ways. For example, one end of the fixing rod 22 is fixed with a connector 221, and the connector 221 is fixed to the end of the take-up drum 20 by bolts 222. Alternatively, one end of the fixing rod 22 is fixed with a connector 221, and the connector 221 is bonded to the end of the take-up drum 20.

[0042] The connector 221 at the end of the fixing rod 22 is fixed to the end of the take-up drum 20 by bolts 222 or adhesive bonding, allowing the fixing rod 22 to be disassembled at the end of the take-up drum 20, making the assembly and disassembly of the connector 221 more convenient. In actual implementation, the fixing rod 22 can be made of plastic, which has the advantage of low cost. After the fixing rod 22 is disassembled simultaneously with the waste roll, it does not need to be recycled and can be directly discarded.

[0043] In addition, such as Figure 2 and Figure 3 As shown, a handwheel 21 is coaxially fixed on the winding drum 20 for manual operation of the winding drum 20 for winding.

[0044] Furthermore, such as Figure 2 As shown, a guide roller 30 is installed on the fixing frame 10. The guide roller 30 is arranged beside the take-up drum 20, and the upper surface of the take-up drum 20 is at the same height as the edge of the tape exit 43. The lower surface of a section of tape between the tape roll 50 and the take-up drum 20 overlaps the upper surface of the guide roller 30. The way the tape abuts against the guide roller 30 before the take-up drum 20 winds ensures that the height and inclination angle of the section of tape between the guide roller 30 and the tape exit 43 remain constant. This effectively prevents the inclination angle of the tape from changing as the winding radius of the take-up drum 20 gradually increases, thus preventing unsatisfactory adhesion.

[0045] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0047] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A foreign matter handling assembly for unwinding a reel, characterized in that, Includes a fixing frame (10), on which an adhesive component is provided. The adhesive component has an adhesive area arranged horizontally upward. The adhesive plane is arranged between the upper film roll (a1) and the lower film roll (a2). In a top view, the adhesive area protrudes to the outer periphery of the upper film roll (a1) to adhere to paper scraps falling downward from the upper film roll (a1).

2. The unwinding shaft foreign object handling assembly according to claim 1, characterized in that, The adhesive component includes a tray (60) mounted on a mounting frame (10), an adhesive sheet (61) is placed on the upper surface of the tray (60), and the upper part of the adhesive sheet (61) has an adhesive layer, which constitutes the adhesive area.

3. The unwinding shaft foreign object handling assembly according to claim 1, characterized in that, The adhesive component includes a receiving cylinder (40) fixed on a fixing frame (10) and having a tape outlet (43) on its upper part. A tape roll (50) for unwinding tape from the tape outlet (43) is arranged inside the receiving cylinder (40). The adhesive component also includes a take-up drum (20) rotatably fitted on the fixing frame (10) for winding up waste tape. The adhesive area is formed by the upper surface of a section of tape between the tape roll (50) and the take-up drum (20).

4. The unwinding shaft foreign object handling assembly according to claim 3, characterized in that, One end of the receiving cylinder (40) is a detachable end cap (41), and the inner wall of the other end of the receiving cylinder (40) is coaxially fixed with an installation shaft (42) that can be inserted into the tape roll (50).

5. A foreign matter handling assembly for an unwinding shaft according to claim 3 or 4, characterized in that, The take-up drum (20) has detachable and fixed rods (22) distributed in parallel. The end of the waste tape is fixed to the fixed rod (22), and the smooth side of the waste tape is wound around the outside of the take-up drum (20) and the fixed rod (22) to form a waste roll. There is a reserved gap between the fixed rod (22) and the take-up drum (20) so that after the fixed rod (22) is removed, the reserved gap constitutes the disassembly gap for sliding disassembly of the waste roll.

6. The unwinding shaft foreign object handling assembly according to claim 4, characterized in that, One end of the fixing rod (22) is fixed with a connector (221), and the connector (221) is fixed to the end of the winding drum (20) by bolts (222).

7. The unwinding shaft foreign object handling assembly according to claim 5, characterized in that, One end of the fixing rod (22) is fixed with a connector (221), which is bonded to the end of the winding drum (20).

8. The unwinding shaft foreign object handling assembly according to claim 5, characterized in that, A handwheel (21) is coaxially fixed on the winding drum (20).

9. A foreign matter handling assembly for an unwinding shaft according to claim 3 or 4, characterized in that, A guide roller (30) is installed on the fixed frame (10). The guide roller (30) is arranged on the side of the take-up drum (20), and the upper surface of the take-up drum (20) is at the same height as the edge of the tape outlet (43). The lower surface of a section of tape between the tape roll (50) and the take-up drum (20) overlaps the upper surface of the guide roller (30).

10. A foreign matter handling assembly for an unwinding shaft according to claim 1, 2, 3, or 4, characterized in that, The lower part of the fixed frame (10) is fixed with a supporting walking part (11).

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