Non-woven fabric seedling raising bag load-bearing test device

Abstract

The utility model discloses a non-woven fabric seedling culture bag load-bearing test device, and belongs to the technical field of load-bearing test. The bag opening and clamping device comprises a base, a lifting mechanism, a load sensor, a bag opening mechanism, a bag clamping mechanism and a control box. The lifting mechanism, the bag clamping mechanism and the control box are arranged on the base, the load sensor is arranged below the output end of the lifting mechanism, the bag opening mechanism is arranged below the load sensor, and the bag clamping mechanism is located below the bag opening mechanism; the bag opening mechanism comprises two needle type suction cups arranged oppositely and a driving assembly for driving the two needle type suction cups to move oppositely or oppositely. According to the utility model, the bearing performance of the non-woven fabric seedling raising bag in a use state can be effectively tested.

Description

Technical Field

[0001] The utility model relates to the technical field of load-bearing testing, in particular to a load-bearing testing device for a non-woven seedling bag. Background Art

[0002] In order to ensure that the non-woven seedling bags can be filled with sufficient seedling matrix without breaking, it is necessary to conduct a load-bearing test on the non-woven seedling bags.

[0003] In the prior art, for example, utility model patent No. ZL202221923828.0 discloses a novel tensile testing machine for non-woven bag production, comprising a workbench, a mounting platform, a backboard, and a cloth belt. The backboard is bolted to the upper surface of the workbench, a threaded rod is rotatably mounted on the backboard, a slider is threadedly mounted on the threaded rod, and the slider is in sliding contact with the surface of the backboard. A tensile tester is mounted on the lower surface of the slider, and the mounting platform is bolted to the bottom end of the backboard. A shaft frame is mounted on both the mounting platform and the tensile tester, and a roller is rotatably mounted within the shaft frame. The roller has strip holes formed in the roller, and the ends of the cloth belt pass through the strip holes and are wrapped around the two rollers. Through the coordination between the structures, the cloth belt is fully stressed and taut during the tensile test, improving data accuracy. For example, the utility model patent with patent number ZL202223435808.1 discloses a tensile testing device for waterproof non-woven bags, including a test frame, which is arranged above the test bench, and a first clamping seat and a second clamping seat are arranged above the test bench; a movable seat is arranged below the test frame, and a second slide is provided on the test frame, a mounting frame is provided below the movable seat, a test roller is provided below the mounting frame, a pressure sensor is provided above the mounting frame, and a first electric telescopic rod is provided above the pressure sensor; the tensile testing device uses a roller to squeeze the waterproof non-woven bag, and the roller rotates accordingly under the force state, so that the force on both sides of the contact point between the roller and the waterproof non-woven bag is consistent, which indirectly improves the tensile test accuracy of the waterproof non-woven bag.

[0004] The above-mentioned existing test devices are only for testing the tensile properties of the non-woven fabric itself, and cannot effectively simulate the state of the non-woven seedling bag after being actually filled with the matrix, so it is impossible to obtain accurate test results. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide a non-woven seedling bag load-bearing test device, which can effectively test the load-bearing performance of the non-woven seedling bag in use.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A non-woven seedling bag load-bearing test device comprises a base, a lifting mechanism, a load sensor, a bag opening mechanism, a bag clamping mechanism, and a control box; the lifting mechanism, the bag clamping mechanism, and the control box are arranged on the base, the load sensor is arranged below the output end of the lifting mechanism, the bag opening mechanism is arranged below the load sensor, and the bag clamping mechanism is located below the bag opening mechanism; the bag opening mechanism comprises two needle suction cups arranged opposite to each other and a driving component for driving the two needle suction cups to move toward or away from each other.

[0008] Preferably, the driving assembly includes a mounting frame, a bag opening screw rotatably connected to the mounting frame, a motor provided at one end of the mounting frame and with the output end connected to the bag opening screw, two bag opening nuts respectively threadedly connected to the left and right parts of the bag opening screw, and a slide rail slider assembly provided between the bag opening nut and the mounting frame, the left and right parts of the bag opening screw have opposite thread directions, and the needle suction cup is provided below the bag opening nut.

[0009] Preferably, a protruding bracket is provided between the bag-opening nut and the needle suction cup.

[0010] Preferably, a nut positioning scale is provided on the mounting bracket.

[0011] Preferably, a connecting plate is provided in the middle of the upper end of the mounting frame, and a connecting clamp is provided at the lower end of the load sensor, the connecting clamp includes a clamp base, two clamp screws arranged opposite to each other on the clamp base, splints arranged at the opposite ends of the two clamp screws, and a clamp guide rod arranged between the splint and the clamp base, and teeth are provided on the opposite ends of the two splints and the opposite sides of the connecting plate.

[0012] Preferably, a clamp limiting knob is provided at one end of the clamp screw facing away from the clamp plate.

[0013] Preferably, the clamp limit knob is provided with a clamp operating lever.

[0014] Preferably, the bag clamping mechanism includes a bag clamping base, two bag clamping screws arranged opposite to each other on the bag clamping base, a bag clamping plate arranged at the opposite ends of the two bag clamping screws, and a bag clamping guide rod arranged between the bag clamping plate and the bag clamping base, and bag clamping teeth are provided at the opposite ends of the two bag clamping plates.

[0015] Preferably, a bag clamping limit knob is provided at one end of the bag clamping screw facing away from the bag clamping plate.

[0016] Preferably, a bag clamping operating rod is vertically provided at one end of the bag clamping screw facing away from the bag clamping plate.

[0017] The advantages of the utility model are:

[0018] 1. The non-woven seedling bag is opened through the bag opening mechanism, so that its load-bearing performance can be tested when the bag is opened. The test results are closer to the actual usage.

[0019] 2. The bag opening mechanism can automatically open the seedling bag and maintain the bag opening state, thereby improving the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a non-woven seedling bag load-bearing test device provided in an embodiment of this specification;

[0021] Figure 2 A schematic diagram of the structure of the bag opening mechanism provided in the embodiment of this specification;

[0022] Figure 3 A schematic diagram of the structure of a connection fixture provided in an embodiment of this specification;

[0023] Figure 4 A schematic structural diagram of a bag clamping mechanism provided in an embodiment of this specification;

[0024] In the picture:

[0025] 1- Base;

[0026] 2-lifting mechanism; 21-nut bracket;

[0027] 3-Load sensor;

[0028] 4-Bag opening mechanism; 41-Needle suction cup; 42-Mounting frame; 421-Nut positioning scale; Motor; 45-Bag opening nut; 46-Extending bracket; 47-Connecting plate;

[0029] 5-bag clamping mechanism; 51-bag clamping base; 52-bag clamping screw; 53-bag clamping plate; 54-bag clamping guide rod; 55-bag clamping limit knob; 56-bag clamping operating lever;

[0030] 6-Control box;

[0031] 7-Seedling bag;

[0032] 81-clamp base; 82-clamp screw; 83-clamp plate; 84-clamp guide rod; 85-clamp limit knob; 86-clamp operating lever. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0034] like Figure 1As shown, this embodiment provides a non-woven seedling bag load-bearing test device, including a base 1, a lifting mechanism 2, a load sensor 3, a bag opening mechanism 4, a bag clamping mechanism 5, and a control box 6; the lifting mechanism 2, the bag clamping mechanism 5 and the control box 6 are arranged on the base 1, the load sensor 3 is arranged below the output end of the lifting mechanism 2, the bag opening mechanism 4 is arranged below the load sensor 3, and the bag clamping mechanism 5 is below the bag opening mechanism 4; the bag opening mechanism 4 includes two needle suction cups 41 arranged opposite to each other and a driving component that drives the two needle suction cups 41 to move toward or away from each other. Among them, the lifting mechanism 2 is mainly realized by a lifting motor driving the lifting screw to rotate, and the lifting screw drives the nut bracket 21 to rise and fall, which will not be elaborated here. Correspondingly, the load sensor 3 is arranged below the nut bracket 21. The lifting motor, the load sensor 3 and the bag opening mechanism 4 are all electrically connected to the control box 6 to accept the unified control of the control box. The main working principle of this embodiment is as follows: the lower end of the non-woven seedling bag 7 is clamped by the bag clamping mechanism 5, and the two sides of the upper part of the seedling bag are sucked by two needle suction cups 41. The order of the above two actions can be adjusted at will according to habit. Since the seedling bag is relatively soft, it is generally necessary to hold its upper part by hand until the two needle suction cups 41 suck the seedling bag; then, the two needle suction cups 41 are gradually separated to open the seedling bag until the required opening range is required; then the lifting mechanism 2 is lifted to drive the two needle suction cups 41 to rise, so that when the seedling bag is in the open state, its two sides are stretched upward until at least one side of the seedling bag is cracked, and the load sensor 3 can feed back the tension data in the process to the control box, thereby obtaining the maximum tensile force that the seedling bag can withstand in the open state, that is, the maximum load-bearing capacity of the seedling bag in the open state.

[0035] like Figure 2 As shown, the drive assembly includes a mounting frame 42, a bag-opening screw 43 rotatably connected to the mounting frame 42, a motor 44 disposed at one end of the mounting frame 42 and having its output end connected to the bag-opening screw 43, two bag-opening nuts 45 threadedly connected to the left and right portions of the bag-opening screw 43, and a slide rail and slider assembly disposed between the bag-opening nuts 45 and the mounting frame 42. The left and right portions of the bag-opening screw 43 have opposite thread directions, and the needle suction cup 41 is disposed below the bag-opening nut 45. Specifically, the bag-opening screw 43 is driven to rotate by the motor 44, which drives the two bag-opening nuts 45 to move along the bag-opening screw 43. Since the left and right portions of the bag-opening screw 43 have opposite thread directions, the two bag-opening nuts 45 can move toward or away from each other, thereby driving the two needle suction cups 41 to move toward or away from each other, thereby achieving the bag-opening action.

[0036] To increase the distance between the seedling bag 7 and the bag opening nut 45 and the bag opening screw 43 to prevent interference between the seedling bag and the bag opening nut 45 and the needle suction cup 41, an L-shaped extension bracket 46 is provided. To facilitate the acquisition and control of the amplitude of each bag opening, a nut positioning scale 421 is provided on the mounting bracket 42.

[0037] like Figure 3 As shown, to facilitate assembly and disassembly between the bag opening mechanism 4 and the load sensor 3, a connecting plate 47 is vertically mounted in the middle of the upper end of the mounting frame 42. A connecting fixture is mounted at the lower end of the load sensor 3. The connecting fixture comprises an inverted U-shaped fixture base 81, two clamp screws 82 facing each other on the fixture base 81, clamping plates 83 disposed at the opposing ends of the two clamp screws 82, and a fixture guide rod 84 disposed between the clamping plates 83 and the fixture base 81. Latching teeth are provided on the opposing ends of the two clamping plates 83 and on the opposing sides of the connecting plate 47. Thus, the two clamp screws 82 can be rotated to move the two clamping plates 83 toward each other, clamping the connecting plate 47 together. The latching teeth between the two clamping plates 83 lock the connecting plate 47 in an upward and downward position, ensuring the stability of the connection. After the bag opening mechanism 4 is disassembled, the connecting fixture can be directly used to clamp other objects to be tested, thereby improving the device's utilization.

[0038] In order to limit the distance that the clamp screw 82 can be screwed into the middle of the clamp base 81, that is, to ensure that the two clamping plates are in the middle position as much as possible when clamping the connecting plate, thereby ensuring the stability of the load cell, a clamp limit knob 85 is provided on the end of the clamp screw 82 facing away from the clamp plate 83. In order to facilitate the rotation of the clamp screw and increase the torque during rotation, a clamp operating rod 86 is provided on the clamp limit knob 85, which is perpendicular to the clamp screw.

[0039] like Figure 4 As shown, the bag clamping mechanism 5 includes a U-shaped bag clamping base 51, two bag clamping screws 52 disposed on the bag clamping base 51, a bag clamping plate 53 disposed at the opposite ends of the two bag clamping screws 52, and a bag clamping guide rod 54 disposed between the bag clamping plate 53 and the bag clamping base 51. The two bag clamping plates 53 are provided with bag clamping teeth at the opposite ends. Thus, the two bag clamping screws 52 can be rotated to move the two bag clamping plates 53 toward each other, and the lower end of the seedling bag 7 can be clamped by the two bag clamping plates 53. Since the bag clamping teeth are provided on the bag clamping plates, the stability of the seedling bag can be effectively guaranteed.

[0040] In order to limit the distance that the bag clamping screw 52 can be screwed into the middle of the bag clamping base 51, that is, to ensure that the two bag clamping plates are in the middle position as much as possible when clamping the seedling bag, thereby ensuring the balance of force on the left and right sides of the seedling bag, a bag clamping limit knob 55 is provided on the end of the bag clamping screw 52 facing away from the bag clamping plate 53. In order to facilitate the rotation operation of the bag clamping screw and increase the torque during rotation, a bag clamping operating rod 56 is perpendicularly provided on the end of the bag clamping screw 52 facing away from the bag clamping plate 53. The bag clamping operating rod is perpendicular to the bag clamping screw.

[0041] The above is only a preferred embodiment of the present invention, which is one implementation method based on the overall concept of the present invention. The scope of protection of the present invention is not limited to this embodiment. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A non-woven seedling bag load-bearing test device, characterized in that: It includes a base, a lifting mechanism, a load sensor, a bag opening mechanism, a bag clamping mechanism, and a control box; the lifting mechanism, the bag clamping mechanism and the control box are arranged on the base, the load sensor is arranged below the output end of the lifting mechanism, the bag opening mechanism is arranged below the load sensor, and the bag clamping mechanism is below the bag opening mechanism; the bag opening mechanism includes two needle suction cups arranged opposite to each other and a driving component that drives the two needle suction cups to move toward or away from each other.

2. A non-woven seedling bag load-bearing test device according to claim 1, characterized in that: The driving assembly includes a mounting frame, a bag opening screw rotatably connected to the mounting frame, a motor provided at one end of the mounting frame and with the output end connected to the bag opening screw, two bag opening nuts respectively threadedly connected to the left and right parts of the bag opening screw, and a slide rail slider assembly provided between the bag opening nut and the mounting frame. The left and right parts of the bag opening screw have opposite thread directions, and the needle suction cup is provided below the bag opening nut.

3. A non-woven seedling bag load-bearing test device according to claim 2, characterized in that: A protruding bracket is provided between the bag-opening nut and the needle-type sucker.

4. A non-woven seedling bag load-bearing test device according to claim 2, characterized in that: The mounting frame is provided with a nut positioning scale.

5. A non-woven seedling bag load-bearing test device according to claim 2, characterized in that: A connecting plate is provided in the middle of the upper end of the mounting frame, and a connecting clamp is provided at the lower end of the load sensor. The connecting clamp includes a clamp base, two clamp screws arranged opposite to each other on the clamp base, a clamp plate arranged at the opposite ends of the two clamp screws, and a clamp guide rod arranged between the clamp plate and the clamp base. The facing ends of the two clamp plates and the opposite sides of the connecting plate are provided with teeth.

6. A non-woven seedling bag load-bearing test device according to claim 5, characterized in that: A clamp limiting knob is provided on one end of the clamp screw facing away from the clamp plate.

7. A non-woven seedling bag load-bearing test device according to claim 6, characterized in that: The clamp limiting knob is provided with a clamp operating rod.

8. A non-woven seedling bag load-bearing test device according to claim 1, characterized in that: The bag clamping mechanism includes a bag clamping base, two bag clamping screws arranged opposite to each other on the bag clamping base, a bag clamping plate arranged at the opposite ends of the two bag clamping screws, and a bag clamping guide rod arranged between the bag clamping plate and the bag clamping base, and bag clamping teeth are provided at the opposite ends of the two bag clamping plates.

9. A non-woven seedling bag load-bearing test device according to claim 8, characterized in that: A bag clamping limiting knob is provided on one end of the bag clamping screw rod facing away from the bag clamping plate.

10. A non-woven seedling bag load-bearing test device according to claim 9, characterized in that: A bag clamping operating rod is vertically provided on one end of the bag clamping screw rod facing away from the bag clamping plate.

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