A lightweight laminated woven bag anti-pulling research and development detection device
By designing a testing device that includes a support base, a hollow mounting seat, and a pressure plate, the problem of air permeability determination in the tensile strength testing of lightweight laminated woven bags has been solved, achieving the effect of simplified operation and accurate evaluation of tensile strength performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YOUWEI NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
Existing lightweight laminated woven bags cannot be tested for tensile strength based on air permeability, and the testing process is cumbersome.
A testing device was designed, comprising a support base, a hollow mounting seat, fixed and movable pressure plates, a hydraulic cylinder, a pneumatic cylinder, and a gas flow sensor. By pressing and pulling the woven bag, and monitoring the gas flow through the conical air guide seat injection and exhaust pipe, the air permeability and tensile strength can be determined.
It enables rapid determination of the air permeability of woven bags, simplifies the testing process, and accurately assesses their tensile strength.
Smart Images
Figure CN224535640U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of woven bag testing technology, specifically a lightweight laminated woven bag tensile strength testing device. Background Technology
[0002] Lightweight laminated woven bags are produced by laminating a plastic film onto the surface of a woven bag. This process primarily enhances moisture resistance and abrasion resistance while maintaining lightweight characteristics. The outer film coating effectively isolates moisture, preventing the contents from getting damp. The lamination process reduces overall weight while maintaining the original structural strength, making it easier to handle and transport. During the production and processing of lightweight laminated woven bags, it is necessary to conduct research and testing on their tensile strength.
[0003] Existing lightweight laminated woven bags cannot measure their tensile strength based on air permeability during tensile testing, and the testing operation is cumbersome. Therefore, they do not meet current needs. To address this, we propose a tensile strength testing device for lightweight laminated woven bags. Utility Model Content
[0004] The purpose of this invention is to provide a tensile strength testing device for lightweight laminated woven bags, in order to solve the problems mentioned in the background art, that existing lightweight laminated woven bags cannot be tested for tensile strength based on air permeability, and that the testing operation is cumbersome.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a lightweight laminated woven bag tensile strength testing device, comprising a support base, a hollow mounting seat fixedly installed in the middle of the upper surface of the support base, fixed lower pressure plates fixedly installed on both sides of the hollow mounting seat, an exhaust pipe fixedly installed at the front end of the hollow mounting seat, a gas flow sensor fixedly installed on the inner side of the exhaust pipe, a positioning air guide plate fixedly installed in the middle of the upper surface of the hollow mounting seat, a plurality of air guide holes provided on the surface of the positioning air guide plate, movable lower pressure plates installed on both sides of the positioning air guide plate, movable upper pressure plates installed on the upper surface of the movable lower pressure plates, connecting guide strips slidably connected to the inner sides of both ends of the two movable upper pressure plates, and a conical air guide seat installed between the four connecting guide strips.
[0006] Preferably, an installation frame is installed on the outer side of the hollow mounting base, and cylinders are fixedly installed on the inner sides of both ends of the installation frame. A fixed upper pressure plate is fixedly installed on the output end of the cylinder. A hydraulic cylinder is fixedly installed in the middle of the upper end of the installation frame, and a transmission plate is fixedly installed on the output end of the hydraulic cylinder. Two connecting swing plates are rotatably connected to the lower end face of the transmission plate.
[0007] Preferably, both the fixed lower pressure plate and the movable lower pressure plate are symmetrically installed relative to the mounting hollow base. The upper end surfaces of both the fixed lower pressure plate and the movable lower pressure plate are provided with slots, and the bottom ends of both the fixed upper pressure plate and the movable upper pressure plate are inserted into the inner side of the slots.
[0008] Preferably, the upper surface of the mounting hollow seat is provided with a sliding groove, and the two movable lower pressure plates are arranged inside the sliding groove and symmetrically installed relative to the positioning air guide plate. The mounting hollow seat is slidably connected to the two movable lower pressure plates.
[0009] Preferably, the inner side of the conical air guide seat is connected to the interior of the hollow mounting seat through multiple air guide holes. A one-way valve is provided on the inner side of the upper end of the conical air guide seat. The four corners of the conical air guide seat are fixedly connected to the four connecting guide bars. The conical air guide seat is slidably connected to both ends of the two movable upper pressure plates through connecting guide bars.
[0010] Preferably, both ends of the connecting swing plate are rotatably connected to the transmission plate and the movable upper pressure plate by pins, and the two connecting swing plates are installed symmetrically relative to the transmission plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model covers a woven bag on a hollow mounting base, a positioning air guide plate, two fixed lower pressure plates, and two movable lower pressure plates. Two cylinders drive the fixed upper pressure plate and the fixed lower pressure plate to interlock with each other, thereby pressing and fixing both ends of the woven bag through the two fixed upper pressure plates and the fixed lower pressure plates. The hydraulic cylinder drives the two movable upper pressure plates to move down and interlock with the movable lower pressure plates through the transmission plate and two connecting swing plates, thereby further pressing the woven bag part located on the surface of the positioning air guide plate through the two movable upper pressure plates and the movable lower pressure plates. The movable upper pressure plate drives the conical air guide seat to move down and contact the upper surface of the woven bag through the connecting guide strip, effectively maintaining stability when performing tensile testing on the woven belt.
[0013] 2. This utility model uses a hydraulic cylinder to drive two movable upper pressure plates and two movable lower pressure plates to slide in opposite directions on both sides of the positioning air guide plate via a transmission plate and two connecting swing plates, thereby achieving a pulling operation on the woven bag. At the same time, air is injected into the upper surface of the woven bag through a conical air guide seat. The conical air guide seat and the interior of the mounting hollow seat are connected through multiple air guide holes. The gas injected by the conical air guide seat is discharged through the exhaust pipe by the air guide holes and the mounting hollow seat. At this time, the air permeability of the woven bag can be measured by monitoring the gas flow rate in the exhaust pipe through a gas flow sensor. In addition, the tensile strength of the woven bag can be quickly tested by measuring the air permeability of the woven belt. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a front view of the entire utility model;
[0016] Figure 3 This is a cross-sectional structural diagram of the entire utility model;
[0017] Figure 4 This is a schematic diagram of the exploded structure of the conical gas guide seat of this utility model.
[0018] In the diagram: 1. Support base; 2. Mounting frame; 3. Hydraulic cylinder; 4. Pneumatic cylinder; 5. Fixed upper pressure plate; 6. Hollow mounting seat; 7. Exhaust pipe; 8. Gas flow sensor; 9. Transmission plate; 10. Connecting swing plate; 11. Conical air guide seat; 12. Fixed lower pressure plate; 13. Positioning air guide plate; 14. Movable upper pressure plate; 15. Movable lower pressure plate; 16. Connecting guide bar; 17. Air guide hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] The hydraulic cylinder 3 (model HOB80X250-100) and the air cylinder 4 (model CG3LN25-100) mentioned in this utility model can be obtained from the market or through private customization.
[0021] Please see Figures 1 to 4 This utility model provides an embodiment of a lightweight laminated woven bag tensile strength testing device, comprising a support base 1, a hollow mounting seat 6 fixedly mounted on the middle of the upper surface of the support base 1, fixed pressure plates 12 fixedly mounted on both sides of the hollow mounting seat 6, an exhaust pipe 7 fixedly mounted on the front end of the hollow mounting seat 6, a gas flow sensor 8 fixedly mounted on the inner side of the exhaust pipe 7, and a positioning air guide plate 13 fixedly mounted on the middle of the upper surface of the hollow mounting seat 6. The surface of the positioning air guide plate 13 is provided with multiple guides. The air vent 17 and the positioning air guide plate 13 are both equipped with movable lower pressure plates 15. The two fixed lower pressure plates 12 and the movable lower pressure plates 15 are symmetrically installed relative to the mounting hollow base 6. The upper end face of the mounting hollow base 6 is provided with a sliding groove. The two movable lower pressure plates 15 are set inside the sliding groove and are symmetrically installed relative to the positioning air guide plate 13. The mounting hollow base 6 is slidably connected to the two movable lower pressure plates 15. The air permeability of the woven bag can be measured by monitoring the gas flow rate in the exhaust pipe 7 through the gas flow sensor 8.
[0022] Please see Figures 1 to 3 A hydraulic cylinder 3 is fixedly installed in the middle of the upper end of the mounting frame 2. A transmission plate 9 is fixedly installed at the output end of the hydraulic cylinder 3. Two connecting swing plates 10 are rotatably connected to the lower end face of the transmission plate 9. A movable upper pressure plate 14 is installed on the upper end face of the movable lower pressure plate 15. Both ends of the connecting swing plates 10 are rotatably connected to the transmission plate 9 and the movable upper pressure plate 14 through pins. The two connecting swing plates 10 are symmetrically installed relative to the transmission plate 9, so that the hydraulic cylinder 3 drives the two movable upper pressure plates 14 and the movable lower pressure plate 15 to slide in opposite directions on both sides of the positioning air guide plate 13 through the transmission plate 9 and the two connecting swing plates 10, thereby realizing the pulling operation of the woven bag.
[0023] Please see Figure 3 and Figure 4 The inner sides of both ends of the two movable upper pressure plates 14 are slidably connected with connecting guides 16. A conical air guide seat 11 is installed between the four connecting guides 16. The inner side of the conical air guide seat 11 is connected to the interior of the hollow mounting seat 6 through multiple air guide holes 17. A one-way valve is provided on the inner side of the upper end of the conical air guide seat 11. The four corners of the conical air guide seat 11 are fixedly connected to the four connecting guides 16. The conical air guide seat 11 is slidably connected to both ends of the two movable upper pressure plates 14 through the connecting guides 16. The movable upper pressure plates 14 synchronously drive the conical air guide seat 11 to move down and come into contact with the upper surface of the woven bag through the connecting guides 16.
[0024] Please see Figure 1 and Figure 3 An installation frame 2 is installed on the outer side of the hollow mounting base 6. Cylinders 4 are fixedly installed on the inner sides of both ends of the installation frame 2. A fixed upper pressure plate 5 is fixedly installed on the output end of the cylinder 4. The upper end surfaces of the fixed lower pressure plate 12 and the movable lower pressure plate 15 are provided with slots. The bottom ends of the fixed upper pressure plate 5 and the movable upper pressure plate 14 are inserted into the inner side of the slots. The two fixed upper pressure plates 5 and the fixed lower pressure plate 12 can press and fix the two ends of the woven bag. The two movable upper pressure plates 14 and the movable lower pressure plate 15 can further press the woven bag part located on the surface of the positioning air guide plate 13.
[0025] In summary, when conducting tensile strength research and testing on lightweight laminated woven bags, the woven bag is placed on the surface of the mounting hollow base 6, covering the mounting hollow base 6, the positioning air guide plate 13, the two fixed lower pressure plates 12, and the two movable lower pressure plates 15. After connecting the power supply and tightening both ends of the woven bag, the cylinder 4 is activated. Under the support of the mounting frame 2, the two cylinders 4 drive the fixed upper pressure plate 5 and the fixed lower pressure plate 12 to interlock. Thus, the two fixed upper pressure plates 5 and the fixed lower pressure plates 12 can press and fix both ends of the woven bag. The hydraulic cylinder 3 is then activated. Under the support of the mounting frame 2, the hydraulic cylinder 3 drives the two movable upper pressure plates 14 to move down and interlock with the movable lower pressure plates 15 through the transmission plate 9 and the two connecting swing plates 10. Thus, the two movable upper pressure plates 14 and the movable lower pressure plates 15 can further press the woven bag part located on the surface of the positioning air guide plate 13.
[0026] Furthermore, the movable upper pressure plate 14 drives the conical air guide seat 11 to move down and come into contact with the upper surface of the woven bag through the connecting guide strip 16. The hydraulic cylinder 3 then applies pressure, causing the hydraulic cylinder 3 to drive the two movable upper pressure plates 14 and the movable lower pressure plate 15 to slide in opposite directions on both sides of the positioning air guide plate 13 through the transmission plate 9 and the two connecting swing plates 10, thereby realizing the pulling operation of the woven bag.
[0027] Simultaneously, air is injected into the upper surface of the woven bag through the conical air guide seat 11. The conical air guide seat 11 and the interior of the hollow mounting seat 6 are connected through multiple air guide holes 17. The gas injected by the conical air guide seat 11 is discharged through the exhaust pipe 7 through the air guide holes 17 and the hollow mounting seat 6. At this time, the air permeability of the woven bag can be measured by monitoring the gas flow rate in the exhaust pipe 7 through the gas flow sensor 8. Since the air permeability increases due to the increased amount of stretching deformation of the woven belt, the tensile strength of the woven bag can be quickly tested by measuring the air permeability of the woven belt.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A lightweight laminated woven bag tensile strength testing device, comprising a support base (1), characterized in that: A hollow mounting base (6) is fixedly installed in the middle of the upper surface of the support base (1). A fixed lower pressure plate (12) is fixedly installed on both sides of the hollow mounting base (6). An exhaust pipe (7) is fixedly installed at the front end of the hollow mounting base (6). A gas flow sensor (8) is fixedly installed on the inner side of the exhaust pipe (7). A positioning air guide plate (13) is fixedly installed in the middle of the upper surface of the hollow mounting base (6). The surface of the positioning air guide plate (13) is provided with multiple air guide holes (17). Movable lower pressure plates (15) are installed on both sides of the positioning air guide plate (13). Movable upper pressure plates (14) are installed on the upper surface of the movable lower pressure plates (15). Connecting guide strips (16) are slidably connected to the inner sides of both ends of the two movable upper pressure plates (14). A conical air guide seat (11) is installed between the four connecting guide strips (16).
2. The lightweight laminated woven bag tensile strength testing device according to claim 1, characterized in that: An installation frame (2) is installed on the outer side of the hollow mounting base (6). Cylinders (4) are fixedly installed on the inner sides of both ends of the installation frame (2). A fixed upper pressure plate (5) is fixedly installed on the output end of the cylinder (4). A hydraulic cylinder (3) is fixedly installed in the middle of the upper end of the installation frame (2). A transmission plate (9) is fixedly installed on the output end of the hydraulic cylinder (3). Two connecting swing plates (10) are rotatably connected to the lower end face of the transmission plate (9).
3. The lightweight laminated woven bag tensile strength testing device according to claim 2, characterized in that: The two fixed lower pressure plates (12) and the movable lower pressure plate (15) are symmetrically installed relative to the mounting hollow base (6). The upper surfaces of the fixed lower pressure plate (12) and the movable lower pressure plate (15) are provided with slots. The bottom ends of the fixed upper pressure plate (5) and the movable upper pressure plate (14) are inserted into the inside of the slots.
4. The lightweight laminated woven bag tensile strength testing device according to claim 3, characterized in that: The upper surface of the mounting hollow seat (6) is provided with a sliding groove, and the two movable lower pressure plates (15) are arranged inside the sliding groove and are symmetrically installed relative to the positioning air guide plate (13). The mounting hollow seat (6) is slidably connected to the two movable lower pressure plates (15).
5. The lightweight laminated woven bag tensile strength testing device according to claim 4, characterized in that: The inner side of the conical air guide seat (11) is connected to the interior of the hollow mounting seat (6) through multiple air guide holes (17). A one-way valve is provided on the inner side of the upper end of the conical air guide seat (11). The four corners of the conical air guide seat (11) are fixedly connected to the four connecting guide bars (16). The two ends of the conical air guide seat (11) and the two movable upper pressure plates (14) are slidably connected through the connecting guide bars (16).
6. The lightweight laminated woven bag tensile strength testing device according to claim 5, characterized in that: The two ends of the connecting swing plate (10) are rotatably connected to the transmission plate (9) and the movable upper pressure plate (14) by pins, and the two connecting swing plates (10) are symmetrically installed relative to the transmission plate (9).