Express bag easy-to-tear notch cutter die structure

CN224898269UActive Publication Date: 2026-10-27JU DI GAO KE JI FA ZHAN (SI CHUAN) YOU XIAN GONG SI
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522624585.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-11
Publication Date
2026-10-27
Estimated Expiration
2035-12-11

AI Technical Summary

Technical Problem

[0003]发明人在实现本申请的过程中发现现有技术存在如下问题:现有的快递袋易撕缺口刀模结构一般包括刀具、支撑机构、固定机构、移动机构这些机构,现有的固定机构大多是只通过电动的方式对快递袋进行固定,在快递袋歪斜后,需要启动电气设备,停止固定,才能调整,较为不便,且只通过一次固定的方式固定,面对较大或者较厚的快递袋存在较为不稳定的情况,且现有的刀具大多只能进行单侧开口,无法实现双面、单面选择切口的机构,较为不实用

Benefits of technology

1、本实用新型提出的一种快递袋易撕缺口刀模结构,两个二号电机使两个刀具转动,一号电机使双头螺杆转动,双头螺杆使两个滑块向底板内侧靠近,根据需要开口的长度调节,两个刀具所处的位置,可实现两侧开口,若是单侧开口,一个二号电机启动,再将快递袋折叠,将快递袋另一侧压在开口侧下方,电动推杆使压板、移动板下移,移动板使握把和多个配重块下移,通过刀具对快递袋进行开口,可实现单侧开口,或者双侧开口。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224898269U_ABST
    Figure CN224898269U_ABST
Patent Text Reader

Abstract

The utility model relates to express bag production and processing technical field discloses an express bag easy tear notch cutter die structure, including fixed establishment, cutting mechanism, the fixed establishment includes moving plate, bottom plate, the moving plate top front end is connected with the pressing plate through the hinge, the pressing plate rear end top is fixedly connected with a plurality of counterweight, the pressing plate one side is fixedly connected with the limit block, the limit block top is close to the pressing plate one end top rotationally connected with the reinforcing plate, the cutting mechanism includes two cutters, two protective frames, two second motors, support frame, two second motor output and two cutter center rear end are fixedly connected, two protective frame bottom fixedly connected with the sliding block, two sliding block rear end inner wall threadedly connected with the stud with double head. In the utility model, through fixed establishment reduces the probability that the express bag shakes when cutting, through cutting mechanism can make the whole more practical.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of express bag production and processing technology, and in particular to an easy-tear notch die structure for express bags. Background Technology

[0002] Delivery bags are used in the express delivery industry to package documents, forms, materials, and goods. They are also known as courier bags, mail bags, or express packaging bags. When opening a package, recipients usually rely on tearing the bag, which requires overcoming the tensile strength of the plastic or paper. Designing express bags with easy-tear openings reduces the force required to open them.

[0003] In the process of developing this application, the inventors discovered the following problems with the existing technology: The existing easy-tear notch die structure for express bags generally includes a cutter, a support mechanism, a fixing mechanism, and a moving mechanism. Most of the existing fixing mechanisms only fix the express bag electrically. If the express bag is tilted, the electrical equipment needs to be started and the fixing stopped before it can be adjusted, which is inconvenient. Moreover, the fixing is only done once, which is unstable when dealing with larger or thicker express bags. Furthermore, most of the existing cutters can only make openings on one side and cannot achieve a mechanism that allows for double-sided or single-sided cutting, which is not very practical.

[0004] Therefore, those skilled in the art have provided a die structure for an easy-tear notch on a courier bag to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an easy-tear notch die structure for express delivery bags. The fixing mechanism reduces the probability of the express delivery bag shaking when cutting, and the cutting mechanism makes the whole bag more practical.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tear-off notch die structure for express bags, including a fixing mechanism and a cutting mechanism. The fixing mechanism includes a movable plate and a base plate. A pressure plate is connected to the top front end of the movable plate via a hinge. Multiple counterweights are fixedly connected to the top rear end of the pressure plate. A limit block is fixedly connected to one side of the pressure plate. A reinforcing plate is rotatably connected to the top of the limit block near the pressure plate. The cutting mechanism includes two blades, two protective frames, two No. 2 motors, and a support frame. The output ends of the two No. 2 motors are fixedly connected to the rear ends of the two blades at their centers. The bottom of the two protective frames is fixedly connected to sliders, and the inner walls of the rear ends of the two sliders are threaded with double-ended screws.

[0007] Furthermore, the double-headed screw is rotatably mounted on the inner wall of the support frame, and a locking block is fixedly connected to the outer wall of the support frame near the reinforcing plate.

[0008] Furthermore, a No. 1 motor is fixedly connected to the inner wall of the card block, and the output end of the No. 1 motor is fixedly connected to the end of the double-headed screw near the reinforcing plate. The output end of the No. 1 motor passes through the end of the support frame near the reinforcing plate.

[0009] Furthermore, the outer walls of the two No. 2 motors are fixedly connected to fixed frames, and the front ends of the two fixed frames are fixedly connected to the rear ends of the two protective frames.

[0010] Furthermore, the rear ends of both sliders are slidably disposed on the inner wall of the front end of the support frame, and two support blocks are fixedly connected to the bottom of the support frame, with the front ends of the two support blocks being fixedly connected to the rear end of the base plate.

[0011] Furthermore, an electric push rod is fixedly connected to the top of the base plate near the front end, and the output end of the electric push rod is fixedly connected to the center of the bottom of the moving plate. A support plate is fixedly connected to the top of the base plate near the center.

[0012] Furthermore, a handle is fixedly connected to the top of the rear end of the pressure plate between multiple counterweights, and baffles are fixedly connected to the rear ends of the two protective frames. The bottom of the two baffles is slidably connected to the top of the support frame.

[0013] This utility model has the following beneficial effects: 1. This utility model proposes an easy-tear notch die structure for express bags. Two No. 2 motors rotate two cutters, and No. 1 motor rotates a double-headed screw. The double-headed screw moves two sliders closer to the inside of the base plate. The position of the two cutters can be adjusted according to the required opening length to achieve openings on both sides. If it is a single-side opening, one No. 2 motor is started, and the express bag is folded so that the other side of the express bag is pressed under the opening side. An electric push rod moves the pressure plate and the moving plate down. The moving plate moves the handle and multiple counterweights down. The cutters open the express bag, which can achieve single-side opening or double-side opening.

[0014] 2. The present invention proposes an easy-tear notch die structure for express bags, which allows the pressure plate to rotate along the hinge, placing the express bag on the longitudinal center line of the base plate. The pressure plate then resets, and the express bag can be observed through the observation window on the top of the pressure plate to see if it is skewed. Then, the reinforcing plate is rotated along the limiting block to press the reinforcing plate on top of the pressure plate before opening. The two fixing processes reduce the frequency of shaking when the express bag is opened, and both fixing processes are simple and convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is a partially exploded structural diagram of the present invention; Figure 4 This is another partial structural schematic diagram of the present invention; Figure 5 This is a partially exploded structural diagram of the cutting mechanism of this utility model.

[0016] Legend: 1. Fixing mechanism; 2. Cutting mechanism; 101. Moving plate; 102. Pressure plate; 103. Limiting block; 104. Reinforcing plate; 105. Electric push rod; 106. Base plate; 107. Counterweight; 108. Handle; 201. Cutting tool; 202. Protective frame; 203. Baffle; 204. Motor No. 1; 205. Locking block; 206. Support plate; 207. Support block; 208. Support frame; 209. Slider; 210. Motor No. 2; 211. Fixing frame; 212. Double-ended screw. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-5 This utility model provides an embodiment of an easy-tear notch die structure for express delivery bags, including a fixing mechanism 1 and a cutting mechanism 2. The fixing mechanism 1 includes a movable plate 101 and a base plate 106. The top front end of the movable plate 101 is connected to a pressure plate 102 via a hinge. Multiple counterweights 107 are fixedly connected to the top rear end of the pressure plate 102. A limit block 103 is fixedly connected to one side of the pressure plate 102. A reinforcing plate 104 is rotatably connected to the top of the limit block 103 near the end of the pressure plate 102. The cutting mechanism 2 includes two cutters 201, two protective frames 202, two secondary motors 210, and a support frame 208. The output ends of the two secondary motors 210 are fixedly connected to the rear end of the center of the two cutters 201. Slider 209 is fixedly connected to the bottom of the two protective frames 202. Double-headed screws 212 are threadedly connected to the inner wall of the rear end of the two sliders 209.

[0019] Specifically, by holding the handle 108, the pressure plate 102 rotates along the front hinge, placing the courier bag on the longitudinal center line of the base plate 106. The pressure plate 102 resets. At this time, the worker can observe through the observation window on the top of the pressure plate 102 whether the courier bag is misaligned. If it is misaligned, it needs to be adjusted. Then, the reinforcing plate 104 is rotated along the limiting block 103, so that the reinforcing plate 104 presses against the top of the pressure plate 102. Then, the opening is made. This double fixation makes the courier bag more secure. The two second motors 210 cause the two cutters 201 to rotate outwards, and the first motor 204 is started, causing the double... When the head screw 212 rotates, the double-headed screw 212 rotates, causing the two sliders 209 to move inward toward the base plate 106. The positions of the two cutters 201 can be adjusted according to the required opening length of the express bag to achieve opening on both sides. If only one side needs to be opened, start a second motor 210, press the unopened side of the express bag under the open side of the other side, and the second motor 210 will cause the cutter 201 to rotate. The electric push rod 105 will cause the pressure plate 102, the moving plate 101, the handle 108, the multiple counterweights 107, and the express bag to move downward, and the cutter 201 can open the express bag.

[0020] Reference Figures 1-5 The double-headed screw 212 is rotatably mounted on the inner wall of the support frame 208. A locking block 205 is fixedly connected to the outer wall of the support frame 208 near the reinforcing plate 104. A first motor 204 is fixedly connected to the inner wall of the locking block 205. The output end of the first motor 204 is fixedly connected to the end of the double-headed screw 212 near the reinforcing plate 104. The output end of the first motor 204 passes through the end of the support frame 208 near the reinforcing plate 104. Two second motors 210 are fixedly connected to the outer wall of a fixing frame 211. The front ends of the two fixing frames 211 are fixedly connected to the rear ends of the two protective frames 202. The rear ends of the two sliders 209 are slidably mounted on the support frame 208. On the inner wall of the front end, two support blocks 207 are fixedly connected to the bottom of the support frame 208. The front ends of the two support blocks 207 are fixedly connected to the rear end of the base plate 106. An electric push rod 105 is fixedly connected to the top of the base plate 106 near the front end. The output end of the electric push rod 105 is fixedly connected to the center of the bottom of the moving plate 101. A support plate 206 is fixedly connected to the top of the base plate 106 near the center. A handle 108 is fixedly connected to the top of the rear end of the pressure plate 102 between multiple counterweights 107. Baffles 203 are fixedly connected to the rear ends of the two protective frames 202. The bottom of the two baffles 203 is slidably connected to the top of the support frame 208.

[0021] Specifically, the locking block 205 provides support for the first motor 204. The output end of the first motor 204 passes through the support frame 208 and is fixed together with the double-headed screw 212. The two fixing frames 211 are fixed on the two protective frames 202 to provide fixation for the two second motors 210. Multiple counterweights 107 are located near the cutting point of the express bag, which can make the express bag more securely fixed during cutting. The setting of the support plate 206 prevents the moving plate 101 from moving too much when it moves down. The setting of the two baffles 203 can prevent the debris of the express bag from contaminating the double-headed screw 212 during the cutting process, reducing the possibility of jamming. All structures in this application need to be maintained and updated regularly.

[0022] Working principle: The handle 108 rotates the pressure plate 102 along the front hinge, placing the courier bag at the bottom, positioned on the longitudinal center line of the base plate 106. The pressure plate 102 is then reset. The position of the courier bag is monitored through the observation window on top of the pressure plate 102 to ensure it is not misaligned. Then, an electrical signal from the controller starts two secondary motors 210, driving two cutters 201 to rotate outwards. Finally, an electrical signal from the controller starts primary motor 204, driving the double-headed screw 212 to rotate, causing the two... The slider 209 moves closer to the inside of the base plate 106 to the position where the required opening length is needed, so that openings can be made on both sides. If only one side needs to be opened, only one motor 210 needs to be started. The other side of the express bag can be pressed under the opening side. Then the started motor 210 causes the cutter 201 to rotate and open one side of the express bag. Finally, the electric push rod 105 is started by the electrical signal sent by the controller, which drives the pressure plate 102, the moving plate 101, the handle 108 and multiple counterweights 107 to move downwards, and the cutter 201 opens the express bag. Secondly, when the express bag is too small and only the rear end is fixed by the pressure plate 102, the reinforcing plate 104 can be rotated along the limiting block 103 so that the reinforcing plate 104 presses on the express bag before opening it.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tear-off notch die structure for a courier bag, comprising a fixing mechanism (1) and a cutting mechanism (2), characterized in that: The fixing mechanism (1) includes a movable plate (101) and a base plate (106). The top front end of the movable plate (101) is connected to a pressure plate (102) via a hinge. The top rear end of the pressure plate (102) is fixedly connected to a plurality of counterweights (107). A limit block (103) is fixedly connected to one side of the pressure plate (102). A reinforcing plate (104) is rotatably connected to the top end of the limit block (103) near the pressure plate (102). The cutting mechanism (2) includes two cutters (201), two protective frames (202), two second motors (210), and a support frame (208). The output ends of the two second motors (210) are fixedly connected to the rear ends of the two cutters (201) at the center. The bottom of the two protective frames (202) is fixedly connected to sliders (209), and the inner walls of the rear ends of the two sliders (209) are threaded with double-headed screws (212).

2. The easy-tear notch die structure for a courier bag according to claim 1, characterized in that: The double-headed screw (212) is rotatably mounted on the inner wall of the support frame (208), and a locking block (205) is fixedly connected to the outer wall of the support frame (208) near the reinforcing plate (104).

3. The easy-tear notch die structure for a courier bag according to claim 2, characterized in that: The inner wall of the card block (205) is fixedly connected to a No. 1 motor (204). The output end of the No. 1 motor (204) is fixedly connected to the end of the double-headed screw (212) near the reinforcing plate (104). The output end of the No. 1 motor (204) passes through the end of the support frame (208) near the reinforcing plate (104).

4. The easy-tear notch die structure for a courier bag according to claim 1, characterized in that: The outer walls of the two No. 2 motors (210) are fixedly connected with fixed frames (211), and the front ends of the two fixed frames (211) are fixedly connected to the rear ends of the two protective frames (202).

5. The easy-tear notch die structure for a courier bag according to claim 1, characterized in that: The rear ends of the two sliders (209) are slidably disposed on the inner wall of the front end of the support frame (208). Two support blocks (207) are fixedly connected to the bottom of the support frame (208), and the front ends of the two support blocks (207) are fixedly connected to the rear end of the base plate (106).

6. The easy-tear notch die structure for a courier bag according to claim 1, characterized in that: An electric push rod (105) is fixedly connected to the top of the base plate (106) near the front end. The output end of the electric push rod (105) is fixedly connected to the center of the bottom of the moving plate (101). A support plate (206) is fixedly connected to the top of the base plate (106) near the center.

7. The easy-tear notch die structure for a courier bag according to claim 1, characterized in that: The pressure plate (102) has a handle (108) fixedly connected to the top of the rear end between multiple counterweights (107), and baffles (203) are fixedly connected to the rear ends of the two protective frames (202). The bottom of the two baffles (203) is slidably connected to the top of the support frame (208).