XPS plate on-line volume weight measuring device

Abstract

The utility model discloses an XPS plate on-line volume weight measuring device, and belongs to the technical field of weighing equipment. The XPS plate measuring device overcomes the defect that in the prior art, due to the fact that a traditional XPS plate measuring device cannot conduct real-time online weighing, efficiency is low. The main body structure of the XPS plate conveying device comprises an upper rack and a lower rack with the adjustable height, the upper end of the lower rack is connected with the upper rack through a weighing sensor, the upper rack is provided with a conveying belt used for conveying XPS plates, and one side of the conveying belt is connected with a transmission mechanism. The device is mainly used for measuring the volume weight of the XPS plate on line.

Description

Technical Field

[0001] The utility model belongs to the technical field of weighing equipment, and particularly relates to an on-line bulk density measuring device for XPS boards. Background Art

[0002] Extruded polystyrene (XPS) boards, as a high-performance thermal insulation material, are widely used in many industries such as construction, refrigeration, and packaging. The bulk density of XPS boards is one of the key indicators to measure their performance, which directly affects the thermal insulation performance, strength, and durability of the boards. Therefore, precise control and measurement of the bulk density of XPS boards are crucial for ensuring product quality.

[0003] Currently, the existing measurement of the bulk density of XPS boards usually adopts an off-line method, that is, samples are taken from the production line and then the density is measured in the laboratory. This method has several main problems:

[0004] 1. Off-line measurement cannot provide real-time feedback on the production status. Once unqualified products are found, a batch of products with the same problems have often been produced, resulting in waste of resources and increased costs; 2. The sampling and measurement processes are cumbersome and require manual intervention, increasing the workload of operators and possibly introducing human errors; 3. When the thickness or specifications of XPS boards on the production line change, it is difficult for traditional measurement methods to adapt quickly, resulting in inaccurate measurement;

[0005] For example, the Chinese utility model patent with the authorization announcement number CN 215768109 U discloses a density measurement and inkjet coding integrated machine for large-volume and low-weight boards. It weighs the board by placing it on a weighing device, and then the board is supported by a lifting mechanism. The thickness measurement component and the inkjet coding component move along the board driven by a horizontal module to obtain the thickness. Combining the weight, length, and width, the density value is obtained. However, its deficiency lies in that it cannot measure online in real time and needs to take each one out separately for density measurement, so its working effect is low. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an on-line bulk density measuring device for XPS boards.

[0007] To achieve the above object, the utility model is realized by adopting the following technical solutions:

[0008] An on-line bulk density measuring device for XPS boards includes an upper frame and a lower frame with adjustable height. The upper end of the lower frame is connected to the upper frame through a weighing sensor. A conveyor belt for conveying XPS boards is arranged on the upper frame, and a transmission mechanism is connected to one side of the conveyor belt.

[0009] Preferably, the lower frame includes an upper longitudinal rod and a lower longitudinal rod. The lower end of the upper longitudinal rod is sleeved inside the lower longitudinal rod, and an adjusting mechanism for adjusting the overall height of the lower frame is provided between the upper longitudinal rod and the lower longitudinal rod.

[0010] Preferably, an upper cross bar is provided between two upper longitudinal rods, and a lower cross bar is provided between two lower longitudinal rods. The adjusting mechanism includes a lead screw, a hand wheel mounted on the lead screw, and a nut mounted on the lead screw. The lead screw penetrates through the upper cross bar and the lower cross bar.

[0011] Preferably, there are two nuts, and the two nuts are respectively arranged at the upper and lower ends of the upper cross bar.

[0012] Preferably, the hand wheel is arranged between the upper cross bar and the lower cross bar.

[0013] Preferably, the transmission mechanism includes a transmission shaft installed on the conveyor belt and a driving motor arranged at the bottom of the upper frame. The output end of the driving motor is in transmission connection with the transmission shaft through a sprocket and a transmission chain.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By connecting the upper frame and the lower frame through a weighing sensor, it is possible to realize real-time online measurement of the weight of XPS boards, and then calculate the bulk density, which helps to immediately detect the quality of the boards and ensure the consistency of products and the efficiency of the production line;

[0016] 2. The height adjustability of the lower frame increases the flexibility of the device, can adapt to XPS boards of different thicknesses, and ensures that the measurement accuracy is not affected by changes in the board size;

[0017] 3. By using an adjusting mechanism composed of a lead screw, a hand wheel and a nut, the operator can precisely control the height of the lower frame, improve the accuracy and reliability of the device, and facilitate maintenance and adjustment;

[0018] 4. The design of double nuts can increase stability, prevent loosening during the adjustment process, and ensure the stability and repeatability during the height adjustment process;

[0019] 5. Arranging the hand wheel between the upper cross bar and the lower cross bar is convenient for the operator to adjust, and at the same time reduces the occupied space, making the equipment layout more compact and reasonable;

[0020] 6. Through the combination of a driving motor, a sprocket and a transmission chain, the smooth operation of the conveyor belt is realized, ensuring the continuity and controllable speed of XPS boards during the measurement process, and improving the production efficiency and automation level;

[0021] In summary, the utility model is installed in a production line, can measure the bulk density of XPS foam boards in real time, has high measurement accuracy, convenient operation, stable equipment, improves the finished product rate, reduces the labor cost, and can effectively improve the quality control level of XPS board production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the utility model;

[0023] Figure 2 is a front view of the utility model;

[0024] Figure 3 is a left view of the utility model.

[0025] In the figure: 1, lower frame; 2, weighing sensor; 3, upper frame; 4, driving motor; 5, transmission chain; 6, conveyor belt; 7, XPS board; 8, handwheel; 9, lead screw; 10, upper cross bar; 11, lower cross bar; 12, nut; 13, upper longitudinal bar; 14, lower longitudinal bar; 15, transmission shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further illustrates the utility model through specific embodiments in conjunction with the drawings.

[0027] Embodiment 1:

[0028] As Figures 1-3 shown, an on-line bulk density measuring device for XPS boards includes an upper frame 3 and a height-adjustable lower frame 1. The upper end of the lower frame 1 is connected to the upper frame 3 through a weighing sensor 2. A conveyor belt 6 for conveying XPS boards 7 is arranged on the upper frame 3, and a transmission mechanism is connected to one side of the conveyor belt 6. Since the upper frame 3 and the lower frame 1 are connected through the weighing sensor 2, when the XPS board 7 presses on the upper frame 3, it presses on the weighing sensor 2. By removing the weights of the upper frame 3, the conveyor belt 6 and the transmission mechanism, the weight of the XPS board 7 can be obtained.

[0029] Embodiment 2:

[0030] An on-line bulk density measuring device for XPS boards, different from Embodiment 1, is that the lower frame 1 includes an upper longitudinal bar 13 and a lower longitudinal bar 14. The lower end of the upper longitudinal bar 13 is sleeved inside the lower longitudinal bar 14, and an adjusting mechanism for adjusting the overall height of the lower frame 1 is arranged between the upper longitudinal bar 13 and the lower longitudinal bar 14. The height of the lower frame 1 can be adjusted through the adjusting mechanism to ensure that the measurement position can adapt to XPS boards 7 with different thicknesses.

[0031] Further, an upper cross bar 10 is provided between the two upper longitudinal bars 13, and a lower cross bar 11 is provided between the two lower longitudinal bars 14. The adjusting mechanism includes a lead screw 9, a hand wheel 8 mounted on the lead screw 9, and a nut 12 mounted on the lead screw 9. The lead screw 9 passes through the upper cross bar 10 and the lower cross bar 11.

[0032] Further, there are two nuts 12, and the two nuts 12 are respectively arranged at the upper and lower ends of the upper cross bar 10.

[0033] Further, the hand wheel 8 is arranged between the upper cross bar 10 and the lower cross bar 11, and the height of the lower frame 1 can be adjusted by rotating the hand wheel 8.

[0034] Further, the transmission mechanism includes a transmission shaft 15 mounted on the conveyor belt 6 and a driving motor 4 arranged at the bottom of the upper frame 3. The output end of the driving motor 4 is in transmission connection with the transmission shaft 15 through a sprocket and a transmission chain 5.

[0035] The working principle of the present utility model is as follows:

[0036] 1. Conveying and measuring of the XPS board 7: The XPS board 7 is placed on the conveyor belt 6, and through the driving motor 4, the sprocket and the transmission chain 5, the transmission shaft 15 drives the XPS board 7 to be smoothly fed into the measuring area.

[0037] Dynamic weighing: When the XPS board 7 passes above the weighing sensor 2, the sensor records the instantaneous weight of the XPS board 7. The length, width and height of the XPS board 7 are measured by sensors on other production lines. Combining with the weight data, the bulk density of the XPS board 7 can be calculated.

[0038] 2. Data processing and feedback:

[0039] Real-time calculation: The built-in control system of the device receives the data from the weighing sensor 2, and combines with the size information of the XPS board 7 to calculate the bulk density of the XPS board 7 in real time;

[0040] Quality monitoring: The calculated bulk density value is compared with the set standard bulk density. Any deviation will be immediately fed back to the production line to timely adjust production parameters, such as the dosage of foaming agent, pressure, etc., to ensure that the quality of the board meets the standards.

[0041] 3. Automation and flexibility:

[0042] Height self-adaptation: The height adjustment function of the lower frame 1 ensures that the device can adapt to the thickness change of the XPS board 7 on the production line, improving the automation level and production efficiency.

[0043] Therefore, when the block of XPS board 7 passes through the conveyor belt 6, it will press on the upper frame 3. At this time, the weighing sensor 2 will weigh the XPS board 7. Since the on-line bulk density measuring device of the XPS board is placed in the production line, the control system reads the parameters of the length, width and height of the XPS board 7 in front of the production line, and then through the weight of the weighed XPS board 7, the bulk density of the XPS board is displayed in real time on-line through the formula (bulk density = weight ÷ length ÷ width ÷ height).

[0044] When the height of the production line needs to be adjusted, by rotating the handwheel 8, the lead screw 9 drives the upper vertical rod 13 to lift and lower in the lower vertical rod 14, thereby adjusting the height of the entire lower frame 1. The double-nut design ensures the stability and accuracy of the adjustment process.

Claims

1. An online bulk density measuring device for XPS plates, characterized in that: The invention comprises an upper frame (3) and a height-adjustable lower frame (1), wherein the upper end of the lower frame (1) is connected to the upper frame (3) via a weighing sensor (2), and a conveyor belt (6) for conveying XPS plates (7) is arranged on the upper frame (3), and a transmission mechanism is connected to one side of the conveyor belt (6).

2. The XPS plate online bulk density measuring device according to claim 1, characterized in that: The lower frame (1) comprises an upper longitudinal rod (13) and a lower longitudinal rod (14); the lower end of the upper longitudinal rod (13) is sleeved in the lower longitudinal rod (14); and an adjustment mechanism for adjusting the overall height of the lower frame (1) is provided between the upper longitudinal rod (13) and the lower longitudinal rod (14).

3. The XPS plate online bulk density measuring device according to claim 2, characterized in that: An upper cross bar (10) is arranged between two upper longitudinal bars (13), a lower cross bar (11) is arranged between two lower longitudinal bars (14), and an adjusting mechanism comprises a screw rod (9), a hand wheel (8) installed on the screw rod (9), and a nut (12) installed on the screw rod (9); the screw rod (9) passes through the upper cross bar (10) and the lower cross bar (11).

4. The XPS plate online bulk density measuring device according to claim 3, characterized in that: The nuts (12) are arranged at two locations, and the two nuts (12) are arranged at the upper and lower ends of the upper cross bar (10) respectively.

5. The XPS plate online bulk density measuring device according to claim 3, characterized in that: The hand wheel (8) is arranged between the upper cross bar (10) and the lower cross bar (11).

6. The XPS plate online bulk density measuring device according to any one of claims 1 to 5, characterized in that: The transmission mechanism comprises a transmission shaft (15) mounted on a conveyor belt (6) and a driving motor (4) arranged at the bottom of an upper frame (3); an output end of the driving motor (4) is connected to the transmission shaft (15) via a sprocket and a transmission chain (5).

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