Semi-automatic measuring device for measuring volume of backpack

Abstract

The utility model discloses a semi-automatic measuring device for measuring the volume of a knapsack, which comprises a lifting assembly, a weighing sensor, a collecting box, a vertical frame, a hanging assembly, a feeding assembly and a discharging assembly, the hanging assembly is arranged on the vertical frame, the knapsack is hung by the hanging assembly, the discharging assembly is arranged above the hanging assembly, and the weighing sensor is arranged on the collecting box. The feeding assembly is arranged on the vertical frame through a weighing sensor, the feeding assembly is used for storing plastic particles and feeding the plastic particles into the discharging assembly, and the discharging assembly is used for feeding the plastic particles into a backpack; the collecting box is arranged on the lifting assembly through the weighing sensor, the datum plate is arranged in the collecting box, and the height position of the datum plate is controlled through the lifting assembly. The hanging assembly is fixedly connected with the vertical frame, the hanging height of the backpack is guaranteed, and the height of the datum plate is adjusted through the lifting assembly so as to meet the measurement requirement; and the discharging assembly and the feeding assembly are matched and are independently arranged, so that the accuracy of collected data by the weighing sensor is improved.

Description

Technical Field

[0001] The utility model relates to the field of backpack volume measurement, in particular to a semi-automatic measurement device for backpack volume measurement. Background Art

[0002] The determination standard limit of the volume ratio of boxes and bags is recorded in the light industry standard QB / T 5083-2017. Through plastic particles of polypropylene (PP) or polyethylene (PE), with a particle size of 2 mm to 3 mm and a density of 0.94 g / cm 3 ~0.96 g / cm 3 , for the filling of boxes and bags, after the backpack (travel bag) is filled with about half of its volume, with the help of an appropriate device, the sample is suspended so that its bottom is 1.0 cm off the ground, and the product handle or strap (if there is no handle, the strap is used) is in the normal use state as required by the design. Among them, the double handles should be horizontally arranged side by side on the hanger without overlapping or intersecting. During the filling process, with the help of slight external force, the plastic particles are gently shaken until their volume (or height) visually does not change. The existing solution is an ordinary bracket, which adjusts the height position of the backpack through the bracket, so that the distance from the bottom plate is 1 cm; however, through manual adjustment, the accuracy requirements cannot be met; after filling the backpack with plastic particles, it is necessary to pour out the plastic particles in the backpack and weigh them, and calculate the volume of the backpack according to the density of the plastic particles; the steps are cumbersome, and there are easily plastic particle residues in the backpack, and accurate values cannot be obtained. Summary of the Utility Model

[0003] Aiming at the defects existing in the above prior art, the main purpose of the utility model is to overcome the deficiencies of the prior art, and discloses a semi-automatic measurement device for backpack volume measurement, including a lifting component, a weighing sensor, a collection box, a vertical frame, a hanging component, a feeding component and a discharging component. The hanging component is arranged on the vertical frame, and the backpack is suspended by using the hanging component. The discharging component is arranged above the hanging component. The feeding component is arranged on the vertical frame through the weighing sensor, and stores plastic particles by using the feeding component and sends the plastic particles into the discharging component, and the plastic particles are sent into the backpack through the discharging component; the collection box is arranged on the lifting component through the weighing sensor, a reference plate is arranged in the collection box, and the height position of the reference plate is controlled by using the lifting component so that the distance between the reference plate and the bottom of the backpack meets the measurement requirements.

[0004] Furthermore, a light curtain sensor is arranged in the collection box, and the distance between the detection position of the light curtain sensor and the reference plate meets the measurement requirements.

[0005] Further, the lifting assembly includes a base, a lifting platform, guide rods, and a screw jack. The guide rods are arranged on the lifting platform and are slidably connected to the base. The screw jack is arranged on the base, and the screw jack is used to control the up-and-down movement of the lifting platform.

[0006] Further, the hanging assembly includes a cross beam and hooks. The cross beam is arranged on the vertical frame and spans above the reference plate. The hooks are slidably connected to the cross beam.

[0007] Further, the feeding assembly includes a belt conveyor and a hopper. The belt conveyor is arranged on the vertical frame through the weighing sensor. One end of the belt conveyor extends to the discharging assembly. The hopper is mounted on the belt conveyor. An opening allowing plastic particles to pass through is provided between the outlet of the hopper and the belt of the belt conveyor, so that the belt conveyor can convey the plastic particles into the discharging assembly.

[0008] Further, the belt conveyor is controlled by a switch. Each press of the switch controls the start and stop of the belt conveyor.

[0009] Further, baffles are arranged on the sides of the belt conveyor.

[0010] Further, the discharging assembly includes a funnel and a guide pipe. The funnel is fixedly installed on the vertical frame, and the guide pipe is connected to the outlet end of the funnel.

[0011] Further, the guide pipe is a flexible pipe.

[0012] Further, the bottom of the collection box is provided with an inclined plane that slopes to one side, and an opening is provided at the lower position of the inclined plane. A plug board is arranged at the opening to control the opening and closing of the opening.

[0013] The beneficial effects achieved by the present utility model are as follows:

[0014] In the present utility model, the hanging assembly is fixedly connected to the vertical frame to ensure the hanging height of the backpack. The height of the reference plate is adjusted through the lifting assembly to meet the measurement requirements. The discharging assembly and the feeding assembly cooperate with each other and are independently arranged, so as to facilitate the accuracy of the data collected by the weighing sensor. With two groups of weighing sensors, it is not necessary to weigh the plastic particles in the backpack, which simplifies the steps and improves the measurement accuracy. A light curtain sensor is arranged in the collection box. The reference height is set through the light curtain sensor. Then, according to the light shielding condition at the bottom of the backpack, the light curtain sensor obtains a signal, which improves the accuracy of position adjustment and eliminates the error of manual measurement at the same time. Description of the Drawings

[0015] Figure 1Schematic three-dimensional structure diagram of a semi-automatic measuring device for measuring the volume of a backpack according to the present utility model and the present invention;

[0016] Figure 2 is Figure 1 schematic diagram of another perspective of;

[0017] Figure 3 is Figure 1 left view of;

[0018] Figure 4 is cross-sectional view of the lifting assembly and the collection box in cooperation;

[0019] Reference numerals are as follows:

[0020] 1. Lifting assembly, 2. Weighing sensor, 3. Collection box, 4. Standing frame, 5. Hanging assembly, 6. Feeding component, 7. Material feeding component, 11. Base, 12. Lifting platform, 13. Guide rod, 14. Screw jack, 31. Reference plate, 32. Light curtain sensor, 33. Plug board, 51. Cross beam, 52. Hook, 61. Hopper, 62. Guide pipe, 71. Belt conveyor, 72. Hopper, 73. Baffle. Specific embodiments

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] A semi-automatic measuring device for measuring the volume of a backpack, as Figures 1-4 shown, includes a lifting assembly 1, a weighing sensor 2, a collection box 3, a standing frame 4, a hanging assembly 5, a feeding component 6 and a material feeding component 7. The hanging assembly 5 is arranged on the standing frame 4, and the backpack is suspended by the hanging assembly 5. The feeding component 7 is arranged above the hanging assembly 5. The material feeding component 6 is arranged on the standing frame 1 through the weighing sensor 2. The plastic particles are stored by the material feeding component 6 and sent into the feeding component 7, and the plastic particles are sent into the backpack through the feeding component 7. The collection box 3 is arranged on the lifting assembly 1 through the weighing sensor 2. A reference plate 31 is arranged in the collection box 3, and the height position of the reference plate 31 is controlled by the lifting assembly 1 so that the distance between the reference plate 31 and the bottom of the backpack reaches the measurement requirement.

[0023] In an embodiment, as Figures 1-4 shown, a light curtain sensor 32 is arranged in the collection box 3, and the distance between the bottom of the backpack and the reference plate 31 is detected through the light curtain sensor 32. Since the backpack has an irregular shape, point-line measurement cannot accurately identify the lowest point of the backpack. The sampling light curtain sensor 32 can effectively and accurately collect the lowest point of the backpack.

[0024] In one embodiment, as Figures 1-4 shown, the bottom of the collection box 3 is provided with an inclined plane that slopes to one side, and an opening is provided at the lower position of the inclined plane. The plastic particles falling into the collection box 3 slide down along the inclined plane and converge at the opening. A plug plate 33 is provided at the opening to control the opening and closing of the opening through the plug plate 33.

[0025] In one embodiment, as Figures 1-4 shown, the lifting assembly 1 includes a base 11, a lifting platform 12, guide rods 13 and a screw lifter 14. Four guide rods 13 are provided, and the four guide rods 13 are provided at the bottom of the lifting platform 12. Guide holes cooperating with the guide rods 13 are provided on the base 11, and guide sleeves are provided in the guide holes so that the guide rods 13 can move smoothly. The screw lifter 14 is provided on the base 11, and the lifting platform 12 is controlled to move up and down through the screw lifter 14. Among them, the screw lifter 14 includes a worm and worm gear reducer and a servo motor. Among them, the servo motor is connected to the worm, and the axial movement of the worm is controlled by the rotation of the worm, thereby realizing the control of the up and down movement of the lifting platform 12. Among them, when the worm of the screw lifter 14 rotates one week, the adjusted height is one pitch.

[0026] In one embodiment, as Figures 1-4 shown, the hanging assembly 5 includes a cross beam 51 and a hook 52. The cross beam 51 is provided on the vertical frame 4, and the cross beam 51 spans above the reference plate 31. The hook 52 is slidably connected to the cross beam 51. That is, a guide rail is provided on the cross beam 51 along its length direction, and the upper end of the hook 52 cooperates with the guide rail. Further, the position of the backpack can be adjusted in its length direction.

[0027] In one embodiment, as Figures 1-4 shown, the feeding assembly 7 includes a belt conveyor 71 and a hopper 72. The hopper 72 is used to store plastic particles. The hopper 72 is funnel-shaped, and the lower end of the hopper 72 has an outlet. The belt conveyor 71 is provided on the vertical frame 4 through a weighing sensor 2. The outlet of the hopper 72 is close to the belt of the belt conveyor, so that an opening allowing plastic particles to pass through is formed between the hopper 72 and the belt conveyor. Usually, the height of the opening is controlled to be greater than the particle size of one plastic particle and less than the particle size of two plastic particles. Preferably, a rubber strip is provided at the opening so that when the plastic particles are stuck, there is dimensional redundancy at the opening, and the plastic particles can move through the deformation of the rubber strip.

[0028] In the above embodiment, as Figures 1-4 shown, baffles 73 are provided on both sides of the belt conveyor 71 to prevent plastic particles from slipping out.

[0029] In one embodiment, as Figures 1-4As shown, the belt conveyor 71 is controlled by a switch. Preferably, the switch is a treadle switch. Each press of the switch controls the opening and closing of the belt conveyor 71; that is, when the belt conveyor 71 is in the closed state, pressing the switch once controls the start of the belt conveyor 71; if the switch is pressed again, the belt conveyor 71 stops.

[0030] In one embodiment, as Figures 1-4 shown, the feeding assembly 6 includes a funnel 61 and a guide pipe 62. The funnel 61 is fixedly installed on the vertical frame 4, and the guide pipe 62 is connected to the outlet end of the funnel 61. The guide pipe 62 is a flexible pipe. The feeding assembly 7 feeds plastic particles into the funnel 61 and introduces the plastic particles into the backpack through the guide pipe 62.

[0031] In the above structure, as Figures 1-4 shown, both the hanging assembly 5 and the feeding assembly 6 are fixed on the vertical frame 4, that is, the hanging assembly 5 and the feeding assembly 6 have a fixed height and the distance between them is fixed. Therefore, the guide pipe 62 does not need to be set to be adjustable, and during feeding, the guide pipe 62 will only bend due to a slight height difference and will not have a U-shaped structure. Thus, it ensures that the plastic particles pass through the guide pipe 62 smoothly.

[0032] When the present utility model is in use, the device is powered on and initialized so that the current acquisition values of the two weighing sensors 2 are both 0. Pour in plastic particles and record the weight G1 of the plastic particles after pouring; then pre-load a fixed amount of plastic particles into the backpack and record G2, and hang the backpack on the hanging assembly 5. Adjust the distance between the reference plate 31 and the bottom of the backpack to 1 cm through the lifting assembly 1. Then start the feeding assembly 7 to convey the plastic particles to the feeding assembly 6, and guide the plastic particles into the backpack through the feeding assembly 6 and fill the backpack. Then control the feeding assembly 7 to stop and empty all the plastic particles in the feeding assembly 6; after completion, the guide pipe 62 can be hooked on the funnel 61 to prevent the guide pipe 62 from shaking randomly. Weigh the remaining plastic particles in the feeding assembly 7 and the plastic particles in the collection box 3 through the two groups of weighing sensors 2 to obtain their masses G3 and G4, and then obtain the plastic particles G in the backpack = G1 - G3 - G4 + G2. Finally, divide the weight G of the plastic particles in the backpack by the density to obtain the volume of the backpack.

[0033] The above is only the preferred embodiment of the present utility model and is not used to limit the scope of implementation of the present utility model; if the present utility model is modified or equivalently replaced without departing from the spirit and scope of the present utility model, it should be covered by the protection scope of the claims of the present utility model.

Claims

1. A semi-automatic measuring device for backpack volume measurement, characterized in that: It includes a lifting component, a weighing sensor, a collection box, a stand, a hanging component, a feeding component and a discharging component. The hanging component is arranged on the stand, and a backpack is hung by the hanging component. The discharging component is arranged above the hanging component. The feeding component is arranged on the stand through the weighing sensor, and the feeding component is used to store plastic particles and feed the plastic particles into the discharging component, and the plastic particles are fed into the backpack through the discharging component; the collection box is arranged on the lifting component through the weighing sensor, and a reference plate is arranged in the collection box. The lifting component is used to control the height position of the reference plate, so that the distance between the reference plate and the bottom of the backpack meets the measurement requirements.

2. A semi-automatic measuring device for backpack volume measurement according to claim 1, characterized in that: A light curtain sensor is arranged in the collection box, and the distance between the detection position of the light curtain sensor and the reference plate meets the measurement requirements.

3. A semi-automatic measuring device for backpack volume measurement according to claim 1, characterized in that: The lifting assembly includes a base, a lifting platform, a guide rod and a screw lifter, wherein the guide rod is arranged on the lifting platform and is slidably connected to the base, and the screw lifter is arranged on the base, and the lifting platform is controlled to move up and down by the screw lifter.

4. A semi-automatic measuring device for backpack volume measurement according to claim 1, characterized in that: The hanging assembly comprises a crossbeam and a hook. The crossbeam is arranged on the vertical frame and spans over the reference plate. The hook is slidably connected to the crossbeam.

5. A semi-automatic measuring device for backpack volume measurement according to claim 1, characterized in that: The feeding assembly includes a belt conveyor and a hopper. The belt conveyor is arranged on the vertical frame through the weighing sensor. One end of the belt conveyor extends to the discharge assembly. The hopper is mounted on the belt conveyor. An opening allowing plastic particles to pass through is arranged between the outlet of the hopper and the belt of the belt conveyor, so that the belt conveyor can transfer the plastic particles to the discharge assembly.

6. A semi-automatic measuring device for backpack volume measurement according to claim 5, characterized in that: The belt conveyor is controlled by a switch, and each pressing of the switch controls the start and stop of the belt conveyor.

7. A semi-automatic measuring device for backpack volume measurement according to claim 5, characterized in that: A baffle is arranged on the side of the belt conveyor.

8. A semi-automatic measuring device for backpack volume measurement according to claim 1, characterized in that: The material discharge assembly comprises a funnel and a material guide pipe. The funnel is fixedly mounted on the stand, and the material guide pipe is connected to the outlet end of the funnel.

9. A semi-automatic measuring device for backpack volume measurement according to claim 8, characterized in that: The material guiding pipe is a hose.

10. A semi-automatic measuring device for backpack volume measurement according to claim 1, characterized in that: The bottom of the collection box is arranged as an inclined plane inclined to one side, and an opening is arranged at a low position of the inclined plane, and a plug plate is arranged at the opening to control the opening and closing of the opening.

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