Square-bottom heat-sealing laminated plastic woven bag compression resistance research and detection equipment

Abstract

The utility model relates to the technical field of detection equipment, in particular to square-bottom heat-seal laminated plastic woven bag compression resistance research detection equipment which comprises a detection table, a fixed disc, an electric diagonal push rod, a fast-assembly connecting seat, a telescopic pressure applying rod and a top pressure applying assembly. A fixed disc is arranged at the center of the upper end of the detection table, four groups of electric diagonal push rods are arranged above the fixed disc in a surrounding manner along the diagonal direction, one ends, far away from each other, of the four groups of electric diagonal push rods are provided with fast-assembly connecting seats, and telescopic pressure applying rods are arranged above the four groups of fast-assembly connecting seats; a top pressure applying assembly is arranged above the four groups of telescopic pressure applying rods; according to the utility model, the electric diagonal push rod is matched with the telescopic pressure applying rod, the pressure from the internal corner direction on the plastic woven bag in actual use can be simulated, and the pressure applying ball of the top pressure applying assembly can simulate the pressure on the bottom, so that the problem that the traditional detection equipment cannot simulate the multi-dimensional pressure on the plastic woven bag is solved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a testing device for the compressive strength of square-bottom heat-sealed laminated plastic woven bags. Background Technology

[0002] In the production and application of square-bottom heat-sealable laminated woven plastic bags, their compressive strength is one of the key indicators for measuring product quality. Compressive strength directly affects whether the woven plastic bags can effectively protect the contents during transportation and storage, and avoid economic losses caused by damage due to pressure. Currently, the testing of the compressive strength of square-bottom heat-sealable laminated woven plastic bags requires the use of specialized testing equipment.

[0003] Traditional testing equipment, when testing heat-sealed woven plastic bags, usually only tests the load-bearing and pressure resistance of the bags. It cannot simulate the multidimensional pressure that woven plastic bags are subjected to in actual use, resulting in deviations between the test results and actual working conditions. Furthermore, it cannot adapt to different bag depths, which easily limits the applicability of the testing equipment.

[0004] Therefore, to address the shortcomings of traditional testing equipment when testing square-bottom heat-sealed laminated woven plastic bags, a pressure resistance testing device for square-bottom heat-sealed laminated woven plastic bags can be designed. This device uses an electric diagonal push rod in conjunction with a telescopic pressure rod and a top pressure assembly to simulate multi-dimensional pressure on the woven plastic bag. The device also employs a quick-connect fitting and a telescopic structure to facilitate rapid replacement of testing components, thus solving the aforementioned problems. Utility Model Content

[0005] To overcome the shortcomings of traditional testing equipment, which cannot simulate the multidimensional pressures experienced by woven plastic bags in actual use, resulting in discrepancies between test results and actual working conditions, and cannot adapt to different bag depths, thus limiting the applicability of the testing equipment, this utility model provides a test device for the compressive strength research of square-bottom heat-sealed laminated woven plastic bags.

[0006] The technical solution is as follows: A test device for compressive strength research of square-bottom heat-sealed laminated woven plastic bags includes a test platform, a fixed plate, electric diagonal push rods, quick-connect fittings, telescopic pressure rods, and a top pressure assembly; the upper center of the test platform is provided with a fixed plate, and four sets of electric diagonal push rods are arranged diagonally around the top of the fixed plate. Each of the four sets of electric diagonal push rods has a quick-connect fitting at the far end, and each of the four quick-connect fittings has a telescopic pressure rod above it that adapts to the internal depth of the square-bottom heat-sealed laminated woven plastic bag; a top pressure assembly for applying pressure to the bottom of the woven plastic bag is provided above the four sets of telescopic pressure rods.

[0007] Furthermore, the top pressure assembly includes two sets of telescopic columns, which are symmetrically arranged along the center of both sides of the test platform surface. Each set of telescopic columns has a mounting plate at its lower end, and a first connecting hole is opened at the corner of each mounting plate. A second connecting hole corresponding to the first connecting hole is opened at the center of both sides of the test platform surface. A first telescopic motor that is connected to the two sets of telescopic columns is provided on the outer bottom of each set of telescopic columns.

[0008] Furthermore, a crossbeam is installed between the tops of the two sets of telescopic columns. A pressure ball is located below the center of the crossbeam. A hydraulic cylinder corresponding to the pressure ball is located at the center of the upper end of the crossbeam. A hydraulic push rod is located at the lower end of the hydraulic cylinder. The upper end of the hydraulic push rod passes through the crossbeam and connects to the hydraulic cylinder. The lower end of the hydraulic push rod is connected to the pressure ball.

[0009] Furthermore, each of the four sets of electric diagonal push rods has a second telescopic motor connected to the electric diagonal push rod at one end. The surface of the fixed plate has a motor embedding groove to accommodate the second telescopic motor. The second telescopic motor is located inside the motor embedding groove. The bottom of the second telescopic motor has a flange plate, and mounting holes are opened on both sides of the flange plate.

[0010] Furthermore, the quick-connect connector has an installation slot on its surface, and multiple sets of limiting strips are arranged around the side wall of the installation slot. The lower end of the telescopic pressure rod has an installation block corresponding to the installation slot, and the outer end of the installation block is surrounded by multiple sets of limiting grooves corresponding to the limiting strips.

[0011] Furthermore, the top of the telescopic pressure rod is provided with a pull handle, the lower outer side of the telescopic pressure rod is provided with a reset groove, the bottom outer side of the reset groove is provided with a lower clamping block, and the upper clamping block is provided above the lower clamping block. The surfaces of the lower clamping block and the upper clamping block are fitted with anti-slip pads.

[0012] Furthermore, the rear end of the lower clamping block extends into the interior of the reset groove, and the rear end surface of the lower clamping block is provided with a pressure spring rod that connects to the top of the reset groove. The pressure spring rod is provided with a damper inside.

[0013] The beneficial effect is that traditional testing equipment has shortcomings when testing heat-sealed laminated plastic bags. This application addresses these shortcomings by setting up an electric diagonal push rod in conjunction with a telescopic pressure rod, which can simulate the pressure from the internal corners of the plastic bag during actual use. Simultaneously, the pressure ball of the top pressure component can simulate the pressure at the bottom, solving the problem that traditional testing equipment cannot simulate the multi-dimensional pressure on plastic bags. This makes the test results more consistent with actual working conditions, greatly improving the accuracy and reliability of the test results. Furthermore, the first telescopic motor precisely controls the raising and lowering of the telescopic column, and the adjustable height... The telescopic pressure bar can easily and quickly adapt to square-bottomed heat-sealed woven plastic bags of different depths, effectively expanding the applicability of the testing equipment and meeting diverse testing needs. Through the cooperation of the quick-connect fitting and the telescopic pressure bar via mounting slots and mounting blocks, rapid installation and disassembly are achieved, greatly improving the efficiency of assembling and replacing parts of the testing equipment. With the lower and upper clamping blocks and anti-slip pads, and the clamping pressure provided by the pressure spring rod, the edges of the woven plastic bag are firmly clamped, preventing the bag from sliding or shifting during pressure application and ensuring the stability of the testing process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the pressure resistance research and testing equipment of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the testing platform of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the electric diagonal push rod and quick-connecting seat combination of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the telescopic strut of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the top pressure application component of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Testing table; 2. Fixed plate; 3. Electric diagonal push rod; 4. Quick-connect connector; 5. Telescopic pressure rod; 6. Top pressure assembly; 601. Telescopic column; 602. First telescopic motor; 603. Mounting plate; 604. First connecting hole; 605. Crossbar; 606. Pressure ball; 607. Hydraulic push rod; 608. Hydraulic cylinder; 7. Motor embedding slot; 8. Second connecting hole; 9. Second telescopic motor; 10. Flange plate; 11. Mounting hole; 12. Mounting slot; 13. Limiting strip; 14. Mounting block; 15. Limiting groove; 16. Reset groove; 17. Lower clamping block; 18. Upper clamping block; 19. Pressure spring rod; 20. Anti-slip pad; 21. Pull handle. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example

[0022] like Figures 1-5 As shown, a pressure resistance testing device for square-bottom heat-sealed laminated woven plastic bags includes a testing platform 1, a fixed plate 2, electric diagonal push rods 3, quick-connecting seats 4, telescopic pressure rods 5, and a top pressure assembly 6. The fixed plate 2 is located at the center of the upper end of the testing platform 1. Four sets of electric diagonal push rods 3 are arranged diagonally around the top of the fixed plate 2. Each of the four sets of electric diagonal push rods 3 has a quick-connecting seat 4 at the far end. Each of the four sets of quick-connecting seats 4 has a telescopic pressure rod 5 above it, which is adapted to the internal depth of the square-bottom heat-sealed laminated woven plastic bag. The top pressure assembly 6 is located above the four sets of telescopic pressure rods 5 for applying pressure to the bottom of the woven plastic bag.

[0023] The top pressure assembly 6 includes two sets of telescopic columns 601, which are symmetrically arranged along the center edges of both sides of the surface of the testing table 1. Each set of telescopic columns 601 has a mounting plate 603 at its lower end, and a first connecting hole 604 is provided at the corner of each mounting plate 603. A second connecting hole 8 corresponding to the first connecting hole 604 is provided at the center of both sides of the surface of the testing table 1. A first telescopic motor 602 (the first telescopic motor 602) is provided on the outer bottom of each set of telescopic columns 601 for transmission connection with the two sets of telescopic columns 601. A telescopic motor 602 (model HB-DJ801) provides a stable support structure for the top pressure component 6 by setting two sets of telescopic columns 601. The mounting plate 603 is connected to the testing table 1 through the first connecting hole 604 and the second connecting hole 8, which facilitates the installation and disassembly of the telescopic columns 601. The first telescopic motor 602 is connected to the telescopic columns 601 for transmission, which can accurately control the lifting and lowering of the telescopic columns 601, thereby facilitating the adjustment of the height according to the different depths of the square bottom heat-sealed laminated plastic bags.

[0024] A crossbeam 605 is installed between the tops of the two sets of telescopic columns 601. A pressure ball 606 is located below the center of the crossbeam 605. A hydraulic cylinder 608 corresponding to the pressure ball 606 is located at the center of the upper end of the crossbeam 605. A hydraulic push rod 607 is located at the lower end of the hydraulic cylinder 608. The upper end of the hydraulic push rod 607 passes through the crossbeam 605 and is connected to the hydraulic cylinder 608. The lower end of the hydraulic push rod 607 is connected to the pressure ball 606. The hydraulic cylinder 608 drives the hydraulic push rod 607 to push the pressure ball 606 to evenly apply pressure to the bottom of the woven plastic bag.

[0025] Each of the four sets of electric diagonal push rods 3 has a second telescopic motor 9 (model LINAK LA36) connected to the electric diagonal push rod 3 at one end. The surface of the fixed plate 2 has a motor embedding groove 7 to accommodate the second telescopic motor 9. The second telescopic motor 9 is located inside the motor embedding groove 7. The bottom of the second telescopic motor 9 has a flange plate 10. Mounting holes 11 are opened on both sides of the surface of the flange plate 10. Through the connection between the second telescopic motor 9 and the electric diagonal push rod 3, the extension and retraction of the electric diagonal push rod 3 can be precisely controlled, thereby realizing the precise adjustment of multi-dimensional pressure simulation of the woven plastic bag.

[0026] The quick-connecting base 4 has an installation slot 12 on its surface. The side wall of the installation slot 12 is surrounded by multiple sets of limiting strips 13. The lower end of the telescopic pressure rod 5 is provided with an installation block 14 corresponding to the installation slot 12. The outer end of the installation block 14 is surrounded by multiple sets of limiting grooves 15 corresponding to the limiting strips 13. Through the cooperation of the installation slot 12 and the installation block 14, the telescopic pressure rod 5 can be quickly installed and disassembled, which greatly improves the efficiency of assembling and replacing parts of the testing equipment. The setting of the limiting strips 13 and limiting grooves 15 further enhances the stability of the installation and prevents the telescopic pressure rod 5 from becoming loose or falling off during the testing process.

[0027] The top of the telescopic pressure rod 5 is provided with a pull handle 21. The lower outer side of the telescopic pressure rod 5 is provided with a reset groove 16. The bottom outer side of the reset groove 16 is provided with a lower clamping block 17. Above the lower clamping block 17 is a corresponding upper clamping block 18. The surfaces of the lower clamping block 17 and the upper clamping block 18 are both fitted with anti-slip pads 20. The pull handle 21 facilitates the operation of the telescopic pressure rod 5 by the operator. The lower clamping block 17 and the upper clamping block 18, together with the anti-slip pads 20, can firmly clamp the edge of the woven plastic bag and prevent the woven plastic bag from sliding or shifting during the pressure application process.

[0028] The rear end of the lower clamping block 17 extends into the interior of the reset groove 16. The rear end surface of the lower clamping block 17 is provided with a pressure spring rod 19 connected to the top of the reset groove 16. The pressure spring rod 19 is provided with a damper. After the upper clamping block 18 and the lower clamping block 17 clamp the plastic bag, the pressure spring rod 19 can apply clamping pressure to the upper clamping block 18.

[0029] During operation, the worker first adjusts the height of the telescopic column 601 by starting the first telescopic motor 602 according to the depth of the square-bottom heat-sealed woven plastic bag. Then, the worker pulls the pull handle 21 to adjust the telescopic pressure rod 5 to a suitable height. Next, the worker positions the bag opening downwards, so that the four sets of telescopic pressure rods 5 support the internal corners of the bag. Then, the worker pulls the upper clamping block 18 upwards, placing the edge of the bag opening between the upper clamping block 18 and the lower clamping block 17. Then, the worker loosens the upper clamping block 18, which, under the push of the pressure spring rod 19, cooperates with the lower clamping block 17 to fix the square-bottom heat-sealed woven plastic bag.

[0030] Next, the second telescopic motor 9 is started to drive the four sets of electric diagonal push rods 3 to extend, thereby pushing the four sets of telescopic pressure rods 5 to apply pressure to the inside corner of the heat-sealed plastic woven bag for detection. Then, the hydraulic cylinder 608 is started, and the hydraulic push rod 607 pushes the pressure ball 606 to apply pressure to the outer bottom of the heat-sealed plastic woven bag for detection.

[0031] Its working principle is as follows: two sets of telescopic columns 601 are symmetrically arranged along the center of both sides of the surface of the testing table 1, providing a stable support structure for the top pressure assembly 6. The mounting plate 603 is connected to the testing table 1 through the first connecting hole 604 and the second connecting hole 8, which facilitates the installation and disassembly of the telescopic columns 601. The first telescopic motor 602 is connected to the telescopic columns 601 for transmission, which can precisely control the lifting and lowering of the telescopic columns 601 to adapt to square bottom heat-sealed laminated plastic bags of different depths. The cross frame 605 is mounted on top of the two sets of telescopic columns 601. The pressure ball 606 below the center of the cross frame 605 is used to apply pressure to the bottom of the plastic bag. The hydraulic cylinder 608 is located at the center of the upper end of the cross frame 605 and is connected to the pressure ball 606 through the hydraulic push rod 607. When the hydraulic cylinder 608 is started, the hydraulic push rod 607... 07. Push the pressure ball 606 downward to apply pressure evenly to the bottom of the woven plastic bag; four sets of electric diagonal push rods 3 are arranged diagonally around the top of the fixed plate 2. The second telescopic motor 9 at the lower end of the electric diagonal push rod 3 is connected to the electric diagonal push rod 3 for transmission, which can accurately control the extension and retraction of the electric diagonal push rod 3. The other end of the electric diagonal push rod 3 is connected to the telescopic pressure rod 5 through the quick-connect connector 4. The mounting slot 12 of the quick-connect connector 4 cooperates with the mounting block 14 at the lower end of the telescopic pressure rod 5 to realize quick installation and disassembly. The limiting strip 13 and the limiting groove 15 enhance the stability of the installation. When the second telescopic motor 9 drives the electric diagonal push rod 3 to extend or retract, it drives the telescopic pressure rod 5 to apply pressure or change the pressure position at the corner of the heat-sealed woven plastic bag at the bottom, realizing multi-dimensional pressure simulation of the woven plastic bag.

[0032] Its beneficial effects are significant. By setting up an electric diagonal push rod 3 in conjunction with a telescopic pressure rod 5, this application can simulate the pressure from the internal corner direction that woven plastic bags experience in actual use. Simultaneously, the pressure ball 606 of the top pressure component 6 can simulate the pressure at the bottom, solving the problem that traditional testing equipment cannot simulate the multi-dimensional pressure on woven plastic bags. This makes the test results more consistent with actual working conditions, greatly improving the accuracy and reliability of the test results. Furthermore, by precisely controlling the lifting and lowering of the telescopic column 601 through the first telescopic motor 602, and the height-adjustable telescopic pressure rod 5, it is possible to conveniently and quickly... The square-bottom heat-sealed laminated plastic woven bags, adaptable to different depths, effectively expand the application range of the testing equipment and meet diverse testing needs. The quick-connect connector 4 and the telescopic pressure rod 5, through the cooperation of the mounting slot 12 and mounting block 14, enable rapid installation and disassembly, greatly improving the efficiency of assembling and replacing parts of the testing equipment. The lower clamping block 17 and upper clamping block 18, in conjunction with the anti-slip pad 20 and the pressure spring rod 19, provide clamping pressure, firmly clamping the edge of the plastic woven bag and preventing it from sliding or shifting during pressure application, ensuring the stability of the testing process.

Claims

1. A device for testing the compressive strength of square-bottom heat-sealed laminated woven plastic bags, comprising a testing table (1); characterized in that, It also includes a fixed plate (2), an electric diagonal push rod (3), a quick-connecting seat (4), a telescopic pressure rod (5), and a top pressure assembly (6); the upper center of the testing table (1) is provided with a fixed plate (2), and four sets of electric diagonal push rods (3) are provided diagonally around the top of the fixed plate (2). Each of the four sets of electric diagonal push rods (3) is provided with a quick-connecting seat (4) at the far end. Each of the four sets of quick-connecting seats (4) is provided with a telescopic pressure rod (5) above it to adapt to the internal depth of the square bottom heat-sealed plastic woven bag; a top pressure assembly (6) is provided above the four sets of telescopic pressure rods (5) to apply pressure to the bottom of the plastic woven bag.

2. The equipment for testing the compressive strength of square-bottom heat-sealed laminated plastic woven bags according to claim 1, characterized in that, The top pressure assembly (6) includes two sets of telescopic columns (601). The two sets of telescopic columns (601) are symmetrically arranged along the center of both sides of the surface of the testing table (1). The lower end of each set of telescopic columns (601) is provided with a mounting plate (603). The corner of the mounting plate (603) is provided with a first connecting hole (604). The center of both sides of the surface of the testing table (1) is provided with a second connecting hole (8) corresponding to the first connecting hole (604). The bottom outer side of each set of telescopic columns (601) is provided with a first telescopic motor (602) that is connected to the two sets of telescopic columns (601) in a transmission.

3. The equipment for testing the compressive strength of square-bottom heat-sealed laminated plastic woven bags according to claim 2, characterized in that, A crossbeam (605) is installed between the tops of the two sets of telescopic columns (601). A pressure ball (606) is located below the center of the crossbeam (605). A hydraulic cylinder (608) corresponding to the pressure ball (606) is located at the center of the upper end of the crossbeam (605). A hydraulic push rod (607) is located at the lower end of the hydraulic cylinder (608). The upper end of the hydraulic push rod (607) passes through the crossbeam (605) and is connected to the hydraulic cylinder (608). The lower end of the hydraulic push rod (607) is connected to the pressure ball (606).

4. The equipment for testing the compressive strength of square-bottom heat-sealed laminated plastic woven bags according to claim 1, characterized in that, The four sets of electric diagonal push rods (3) are all equipped with a second telescopic motor (9) that is connected to the electric diagonal push rod (3) for transmission. The surface of the fixed plate (2) is provided with a motor embedding groove (7) to accommodate the second telescopic motor (9). The second telescopic motor (9) is located inside the motor embedding groove (7). The bottom of the second telescopic motor (9) is provided with a flange plate (10). Mounting holes (11) are provided on both sides of the surface of the flange plate (10).

5. The equipment for testing the compressive strength of square-bottom heat-sealed laminated woven plastic bags according to claim 1, characterized in that, The quick-connecting base (4) has an installation slot (12) on its surface. The side wall of the installation slot (12) is surrounded by multiple sets of limiting strips (13). The lower end of the telescopic pressure rod (5) is provided with an installation block (14) corresponding to the installation slot (12). The outer end of the installation block (14) is surrounded by multiple sets of limiting grooves (15) corresponding to the limiting strips (13).

6. The equipment for testing the compressive strength of square-bottom heat-sealed laminated woven plastic bags according to claim 1, characterized in that, The top of the telescopic pressure rod (5) is provided with a pull handle (21), and the lower end of the telescopic pressure rod (5) is provided with a reset groove (16). The bottom of the reset groove (16) is provided with a lower clamping block (17), and the upper clamping block (18) above the lower clamping block (17) is provided with a corresponding upper clamping block (18). The surfaces of the lower clamping block (17) and the upper clamping block (18) are both fitted with anti-slip pads (20).

7. The equipment for testing the compressive strength of square-bottom heat-sealed laminated plastic woven bags according to claim 6, characterized in that, The rear end of the lower clamping block (17) extends into the interior of the reset groove (16). The rear end surface of the lower clamping block (17) is provided with a pressure spring rod (19) connected to the top of the reset groove (16). The interior of the pressure spring rod (19) is provided with a damper.

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