A plastic bag handle slitting apparatus

CN224601845UActive Publication Date: 2026-08-07SHANDONG JINMANLIN PLASTIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG JINMANLIN PLASTIC TECHNOLOGY CO LTD
Filing Date
2025-08-16
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0004]然而,当前在分切设备使用过程中,由于控制器普遍设置在分切设备的外侧,并位于料辊的侧面,而分切设备工作环境较为复杂,且在料辊操作过程中极易出现工作人员无意操作误触或碰撞控制器,导致控制器误触甚至损伤,出现操作事故的情况,影响分切设备的控制防护性和安全性

Benefits of technology

通过设置操作防护机构,可以在控制器的外侧形成包围防护的介质,以便工作人员对操作后的控制器与外界物品之间进行间隔防护工作,避免外界物品碰撞控制器,导致控制器误触甚至损伤出现操作事故的情况,因此提高了控制器的控制防护性和安全性,通过设置防护连接机构,可以对防护板与防护框之间进行平移连接工作,以便使用者流畅平移防护板,对防护壳前侧进行开合操作,避免防护板使用时出现难以平移甚至与防护框分离的情况,因此提高了防护板与防护框的连接效果,通过设置磁条和磁吸条,可以通过连接架对操作后的防护板与防护框之间进行磁吸定位工作,避免防护板使用时出现难以进行定位的情况,因此提高了防护板的定位便捷性。

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Abstract

The utility model provides a kind of plastic bag lifting rope slitting equipment, belong to plastic bag processing technical field.This kind of plastic bag lifting rope slitting equipment includes slitting machine and operation protection mechanism, the front side of slitting machine is equipped with material roll, the left side of the front side of slitting machine is equipped with controller, protection frame is movably connected in the left side of the front side of slitting machine, the front side of protection frame is movably connected with protection plate, fixed strip is fixedly connected in the right side of the inner wall of protection frame, the left side in protection frame inside is movably connected with movable strip, protection connecting mechanism is set in the top of the front side of protection plate, by setting operation protection mechanism, the medium of surrounding protection can be formed in the outside of controller, to facilitate staff to carry out interval protection work between the controller after operation and external article, avoid external article collision controller, lead to controller false touch even damage to appear operating accident condition, thus improve the control protection and security of controller.
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Description

Technical Field

[0001] This utility model relates to the field of plastic bag processing technology, and more specifically, to a plastic bag drawstring cutting device. Background Technology

[0002] A plastic bag drawstring slitting machine is a specialized device for precisely slitting rolls of plastic rope material into individual strands for plastic bag handles according to pre-defined length specifications. It consists of several parts, including an unwinding device, a feeding mechanism, a slitting unit, a winding or collecting device, and a control system. The unwinding device supports and releases the rolled plastic rope material; the feeding mechanism smoothly and evenly transports the plastic rope to the slitting unit; the slitting unit, the core component, is equipped with sharp and durable cutting blades; and the winding or collecting device organizes and collects the slitted drawstrings for subsequent use. During operation, the rolled plastic rope gradually unfolds on the unwinding device, and the feeding mechanism pushes the plastic rope forward at a stable speed. When the plastic rope reaches the slitting unit, the control system precisely controls the cutting blade to move instantaneously according to the preset length parameters, quickly cutting the plastic rope. After cutting, the slit rope falls into the winding or collecting device. Throughout the process, all parts work together, achieving efficient and precise slitting of plastic bag ropes through precise mechanical motion and automated control. Since the slitting equipment is mainly controlled by the controller, it is necessary to implement control and protection measures.

[0003] In related technologies, during the use of slitting equipment, the working speed and start / stop of the slitting equipment are generally controlled by a controller, so that the slitting equipment can slit materials according to the actual situation.

[0004] However, in the current use of slitting equipment, the controller is generally located on the outside of the slitting equipment and on the side of the material roller. The working environment of the slitting equipment is relatively complex, and during the operation of the material roller, it is very easy for the staff to accidentally touch or bump the controller, which may lead to accidental touch or even damage to the controller, resulting in operational accidents and affecting the control, protection and safety of the slitting equipment. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the above-mentioned traditional technology and provide a plastic bag rope cutting device that overcomes or at least partially solves the above-mentioned technical problems.

[0006] The objective of this utility model is achieved through the following technical measures: This utility model provides a plastic bag drawstring slitting device, including a slitting machine, a material roller installed on the front side of the slitting machine, and a controller installed on the left side of the front side of the slitting machine; Operation protection mechanism, the operation protection mechanism comprising: A protective frame; the protective frame is movably connected to the left side of the front of the slitting machine, and a protective plate is movably connected to the front of the protective frame; A fixing strip; the fixing strip is fixedly connected to the right side of the inner wall of the protective frame, and a movable strip is movably connected to the left side inside the protective frame; Protective connection mechanism; the protective connection mechanism is located on the top of the front side of the protective plate.

[0007] In a preferred embodiment, the protective connection mechanism includes a connection port, a connection frame, and a connection bolt. The connection port is located at the top of the front side of the protective plate. The connection frame is movably connected to the left side inside the connection port. The connection bolt is movably connected to the inside of the connection frame. The rear side of the connection bolt is threadedly connected to the front side of the protective frame.

[0008] In a preferred embodiment, a magnetic strip is embedded in the top of the front side of the protective plate, and a magnetic strip that is magnetically connected to the magnetic strip is embedded in the bottom of the rear side of the connecting frame.

[0009] In a preferred embodiment, a screw hole is provided on the left side of the protective frame, and a stud connected to the movable strip is threaded inside the screw hole.

[0010] In a preferred embodiment, a screw cylinder communicating with a screw hole is fixedly connected to the left side of the protective frame, and the screw cylinder is threadedly connected to the stud.

[0011] In a preferred embodiment, connecting sleeves are installed on both sides of the left side of the movable strip, and connecting seats are movably connected inside the connecting sleeves. The left side of the connecting seat is fixedly connected to the right side of the stud.

[0012] In a preferred embodiment, a mounting base is fixedly connected to the outer side of the connecting sleeve, and a mounting bolt that is threadedly connected to the movable bar is movably connected to the inner side of the mounting base.

[0013] In a preferred embodiment, contact strips are provided on both sides inside the protective frame, and the outer sides of the contact strips are fixedly connected to the surfaces of the fixed strip and the movable strip, respectively.

[0014] The plastic bag drawstring cutting device provided by this utility model has the following advantages: By setting up an operation protection mechanism, a protective barrier can be formed around the controller, allowing operators to isolate the controller from external objects after operation. This prevents collisions with external objects that could lead to accidental activation or damage, thus improving the controller's controllability and safety. The protective connection mechanism allows for smooth sliding between the protective plate and the protective frame, facilitating easy opening and closing of the front of the protective shell. This prevents the protective plate from being difficult to move or separating from the frame, improving the connection between the plate and frame. Furthermore, magnetic strips and magnetic suction strips allow for magnetic positioning of the protective plate and frame after operation via a connecting frame, preventing positioning difficulties and enhancing the ease of positioning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0016] Figure 2 This is a rear-view three-dimensional structural diagram of the protective frame in this utility model.

[0017] Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the protective frame in this utility model.

[0018] Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the protective plate in this utility model.

[0019] In the diagram: 1. Slitting machine; 2. Material roller; 3. Controller; 4. Protective frame; 5. Protective plate; 6. Fixing strip; 7. Moving strip; 8. Connection port; 9. Connecting frame; 10. Connecting bolt; 11. Magnetic strip; 12. Magnetic suction strip; 13. Screw hole; 14. Screw stud; 15. Screw barrel; 16. Connecting sleeve; 17. Connecting seat; 18. Mounting seat; 19. Mounting bolt; 20. Contact strip. Detailed Implementation

[0020] Example: Refer to Figures 1 to 4 This utility model provides a technical solution: a plastic bag drawstring slitting device, including a slitting machine 1 and an operation protection mechanism. A material roller 2 is installed on the front side of the slitting machine 1, and a controller 3 is installed on the left side of the front side of the slitting machine 1. A protective medium can be formed around the controller 3 to allow the operator to perform isolation protection between the controller 3 and external objects after operation, so as to avoid external objects colliding with the controller 3, which could lead to accidental contact or even damage to the controller 3 and cause operational accidents. Therefore, the control protection and safety of the controller 3 are improved.

[0021] Reference Figures 1 to 4In a preferred embodiment, the operation protection mechanism includes a protective frame 4, which is movably connected to the left side of the front of the slitting machine 1. A protective plate 5 is movably connected to the front of the protective frame 4. A fixing strip 6 is fixedly connected to the right side of the inner wall of the protective frame 4. A movable strip 7 is movably connected to the left side of the inside of the protective frame 4. The protective connection mechanism is located at the top of the front of the protective plate 5. The protective frame 4 is moved to the outside of the controller 3 by hand, and the movable strip 7 is moved to cooperate with the fixing strip 6 to clamp and install the protective frame 4 on the outside of the controller 3, so that the protective frame 4 and the protective plate 5 form a protective medium surrounding the controller 3, thereby protecting the controller 3 after operation. The protective enclosure mechanism includes a connector 8, a connector 9, and a connector 10. The connector 8 is located on the top front side of the protective plate 5. The connector 9 is movably connected to the left side inside the connector 8. The connector 10 is movably connected to the inside of the connector 9. The rear side of the connector 10 is threadedly connected to the front side of the protective frame 4, allowing for a smooth sliding connection between the protective plate 5 and the protective frame 4. This enables the user to smoothly slide the protective plate 5 and open and close the front side of the protective shell, preventing the protective plate 5 from being difficult to slide or even separating from the protective frame 4 during use. This improves the connection effect between the protective plate 5 and the protective frame 4.

[0022] Reference Figures 2 to 4 In a preferred embodiment, a magnetic strip 11 is embedded and connected to the top of the front side of the protective plate 5, and a magnetic strip 12 magnetically connected to the magnetic strip 11 is embedded and connected to the bottom of the rear side of the connecting frame 9. The connecting frame 9 can magnetically position the protective plate 5 and the protective frame 4 after operation, avoiding the situation where the protective plate 5 is difficult to position during use. Therefore, the positioning convenience of the protective plate 5 is improved. A screw hole 13 is provided on the left side of the protective frame 4. The screw hole 13 is internally threaded with a stud 14 connected to the movable strip 7. This can provide a medium for applying clamping and installation force to the movable strip 7, avoiding the situation where the movable strip 7 is difficult to cooperate with the fixed strip 6 to clamp and install the protective frame 4 during use. Therefore, the clamping force application effect of the movable strip 7 is improved.

[0023] Reference Figures 2 to 4 In a preferred embodiment, a screw cylinder 15 communicating with a screw hole 13 is fixedly connected to the left side of the protective frame 4. The screw cylinder 15 is threadedly connected to the stud 14, which can strengthen the connection between the stud 14 and the protective frame 4. This prevents the stud 14 from deforming under stress during use, thus improving the threaded connection strength between the screw hole 13 and the protective frame 4. Connecting sleeves 16 are installed on both sides of the left side of the movable strip 7. Connecting seats 17 are movably connected inside the connecting sleeves 16. The left side of the connecting seat 17 is fixedly connected to the right side of the stud 14, which can prevent the stud 14 from separating from the movable strip 7 during use, thus improving the connection effect between the stud 14 and the movable strip 7.

[0024] Reference Figures 2 to 3 In a preferred embodiment, a mounting base 18 is fixedly connected to the outside of the connecting sleeve 16, and a mounting bolt 19 threadedly connected to the movable strip 7 is movably connected inside the mounting base 18. This provides a medium for the user to install and connect the connecting sleeve 16 and the movable strip 7, thus improving the ease of installation of the connecting sleeve 16. Contact strips 20 are provided on both sides inside the protective frame 4. The outer sides of the contact strips 20 are fixedly connected to the surfaces of the fixed strip 6 and the movable strip 7, respectively. This provides anti-slip and protective contact between the fixed strip 6, the movable strip 7, and the controller 3, thus improving the contact clamping stability and protection of the movable strip 7 and the fixed strip 6.

[0025] Specifically, the working process or principle of this plastic bag drawstring slitting device is as follows: During use, the protective frame 4 is moved to the outside of the controller 3, and the rear side of the protective frame 4 is aligned with the front side of the slitting machine 1. The controller 3 is positioned inside the fixed strip 6 and the movable strip 7. The protective frame 4 is then moved, causing the fixed strip 6 to move towards the controller 3, so that the fixed strip 6 drives the contact strip 20 to contact the controller 3. This prepares for the subsequent clamping and installation of the protective frame 4 and the controller 3 by the movable strip 7 in conjunction with the fixed strip 6. Subsequently, the stud 14 is rotated to engage the screw hole 13 and the screw cylinder 15, applying a rightward threaded thrust to the movable strip 7. This causes the movable strip 7 to drive the contact strip 20 to contact the left side of the controller 3, prompting the movable strip 7 to cooperate with the fixed strip 6 through the contact strip 20 to clamp and install the protective frame 4 and the controller 3 without slipping. During this process, the connecting seat 17 follows the stud 14 within the connecting sleeve 16. The movement of the part allows for the rotational connection between the stud 14 and the movable strip 7. Simultaneously, the mounting base 18, in conjunction with the mounting bolt 19, stabilizes the connection between the connecting sleeve 16 and the movable strip 7. After the operator adjusts the slitting machine 1 via the controller 3, they hold the protruding post on the front of the protective plate 5 and apply a rightward pushing force to the protective plate 5, causing the protective plate 5 and the protective frame 4 to close, forming a complete protective medium surrounding the controller 3. This provides protection for the controller 3 after use. During this process, the connecting frame 9 moves inside the connecting port 8 via the connecting bolt 10 to perform a translational connection between the protective plate 5 and the protective frame 4 during the translation process. At the same time, the connecting frame 9, through the magnetic strip 12 and the magnetic strip 11, magnetically positions the protective plate 5 and the protective frame 4 after operation, thus ensuring that the protective plate 5 and the protective frame 4 stably surround and protect the controller 3.

Claims

1. A plastic bag drawstring slitting device, comprising a slitting machine (1), wherein a material roller (2) is mounted on the front side of the slitting machine (1), and a controller (3) is mounted on the left side of the front side of the slitting machine (1), characterized in that: Operation protection mechanism, the operation protection mechanism comprising: Protective frame (4); The protective frame (4) is movably connected to the left side of the front of the slitting machine (1), and a protective plate (5) is movably connected to the front of the protective frame (4). Fixing strip (6); The fixing strip (6) is fixedly connected to the right side of the inner wall of the protective frame (4), and the left side inside the protective frame (4) is movably connected to the movable strip (7). Protective connection mechanism; the protective connection mechanism is located on the top of the front side of the protective plate (5).

2. The plastic bag drawstring cutting device according to claim 1, characterized in that: The protective connection mechanism includes a connection port (8), a connection frame (9), and a connection bolt (10). The connection port (8) is located on the top of the front side of the protective plate (5). The connection frame (9) is movably connected to the left side inside the connection port (8). The connection bolt (10) is movably connected to the inside of the connection frame (9). The rear side of the connection bolt (10) is threadedly connected to the front side of the protective frame (4).

3. The plastic bag drawstring cutting device according to claim 2, characterized in that: A magnetic strip (11) is inlaid on the top of the front side of the protective plate (5), and a magnetic strip (12) that is magnetically connected to the magnetic strip (11) is inlaid on the bottom of the rear side of the connecting frame (9).

4. The plastic bag drawstring cutting device according to claim 1, characterized in that: The left side of the protective frame (4) is provided with a screw hole (13), and the screw hole (13) is internally threaded with a stud (14) that is connected to the movable strip (7).

5. A plastic bag drawstring cutting device according to claim 4, characterized in that: The left side of the protective frame (4) is fixedly connected to a screw cylinder (15) that communicates with the screw hole (13), and the screw cylinder (15) is threadedly connected to the stud (14).

6. A plastic bag drawstring cutting device according to claim 4, characterized in that: Connecting sleeves (16) are installed on both sides of the left side of the movable strip (7). Connecting seats (17) are movably connected inside the connecting sleeves (16). The left side of the connecting seat (17) is fixedly connected to the right side of the stud (14).

7. A plastic bag drawstring cutting device according to claim 6, characterized in that: The outer side of the connecting sleeve (16) is fixedly connected to the mounting base (18), and the inner side of the mounting base (18) is movably connected to the mounting bolt (19) which is threadedly connected to the movable bar (7).

8. A plastic bag drawstring cutting device according to claim 1, characterized in that: The protective frame (4) has contact strips (20) on both sides inside, and the outer sides of the contact strips (20) are fixedly connected to the surfaces of the fixed strip (6) and the movable strip (7) respectively.