Rock wool production weighing belt device and feedback adjusting system for adjusting volume weight of rock wool

Abstract

The utility model discloses a weighing belt device for rock wool production and a feedback adjusting system for adjusting the volume weight of rock wool, the weighing belt device for rock wool production comprises a rack, a plurality of groups of mutually independent weighing belts arranged on the rack, and respective weighing sensors of each group of weighing belts; the weighing belts are arranged on the rack side by side, each weighing belt is parallel to the direction of a production line, transverse supporting beams are arranged at the feeding end and the discharging end of the rack respectively, and bearing seats are arranged at the two ends of a center shaft of each weighing belt respectively. An upper supporting rod and a lower supporting rod which are located on the same vertical line are arranged between the bearing seat and the supporting cross beam, and the upper supporting rod and the lower supporting rod are connected through a weighing sensor. Compared with the prior art, the volume weight distribution of cotton in the transverse direction can be monitored in real time, the feedback time is greatly shortened, and the adjusted effect can be observed only by waiting for several seconds after adjustment is carried out according to an existing result every time. And the weighing process is dynamic weighing, so that the continuous production process of the rock wool is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of rock wool production equipment, in particular to a rock wool production weighing belt device and a feedback adjustment system for adjusting the rock wool bulk density. Background Art

[0002] Rock wool is a kind of material made of basalt, dolomite, etc. as the main raw materials. It is melted at a high temperature of more than 1450℃ and centrifuged into fibers at high speed using a centrifuge. At the same time, a certain amount of adhesive, dust-proof oil, and water-repellent are sprayed on it. It is collected by a cotton collector and spread through a pendulum method. After that, it is cured and cut to form rock wool products of different specifications and uses.

[0003] A crucial factor influencing rock wool quality is the uniformity of its bulk density distribution. For rock wool products, this uniformity fundamentally determines the stability of their performance. Excessively high bulk density can lead to unnecessary production losses and excessively high thermal conductivity, resulting in poor insulation performance. Excessively low bulk density can compromise product strength and cause the wool to become soft.

[0004] Take the 2.4m wide design of the mainstream domestic high-volume production line as an example. Within the range of 2.4m, the existing weighing belt cannot distinguish the uneven bulk density on the left and right sides. The existing detection method is to weigh the single piece of rock wool finished product after pleating, curing and cutting. The feedback time of this method is too long, which will cause a large number of defective products (about 80 meters from the pendulum to the cutting saw). Even if the pendulum is adjusted, it is still necessary to wait for about 80 meters of products to determine whether it meets the standards. This method will cause a large number of defective products and seriously affect production stability. Utility Model Content

[0005] During the production process, the uniformity of the bulk density distribution of rock wool products is one of the important indicators affecting the performance of the product. Currently, existing technologies are unable to timely detect and provide feedback on the uneven bulk density in the normal direction (transverse direction) of the production line. In order to solve the above problem, the utility model provides a rock wool production weighing belt device and a feedback adjustment system for adjusting the rock wool bulk density. The technical solutions adopted are as follows:

[0006] As a first aspect of the utility model, it is to provide a rock wool production weighing belt device, including a frame, and several groups of independent weighing belts arranged on the frame, and each group of weighing belts has its own weighing sensor; each group of weighing belts is arranged side by side on the frame, each group of weighing flat belts is parallel to the direction of the production line, and each group of weighing belts is connected to the frame through its own weighing sensor.

[0007] Preferably, the frame is provided with transverse support beams at the feed end and the discharge end respectively, and respective bearing seats are provided at both ends of the central axis of each group of weighing belts, and upper support rods and lower support rods located on the same vertical line are provided between the bearing seats and the support beams, and the upper support rods and the lower support rods are connected by weighing sensors.

[0008] Preferably, the supporting beam is arranged horizontally and is located below the weighing belt.

[0009] Preferably, each set of weighing belts also includes a driving motor.

[0010] As an embodiment, the device includes four sets of separate weighing belts, each set of weighing belts includes a belt with a width of 55 cm.

[0011] The weighing sensor adopts an S-type sensor or a cantilever beam weighing sensor.

[0012] The weighing belt device also includes a reading meter connected to the weight sensors of each weighing belt, which receives the weight signal transmitted by each weighing sensor, thereby observing the bulk density distribution.

[0013] As a second aspect of the present invention, a feedback adjustment system for rock wool bulk density is provided, which includes the weighing belt device and a rock wool felt stacking device arranged in front of its feed end, wherein the rock wool stacking device is a pendulum machine.

[0014] The pendulum machine comprises a pendulum frame, a pendulum arranged on the pendulum frame, a pendulum driving hydraulic cylinder, an input belt and a forming belt located below the pendulum.

[0015] Preferably, the pendulum swing plane is perpendicular to the advancing direction of the forming belt.

[0016] It also includes a PLC controller, which is respectively connected to the pendulum-driven hydraulic cylinder of the pendulum cotton spreading device and each weighing sensor of the rock wool production weighing belt device, receives the total weight signal of each weighing belt weighing sensor, controls the extension speed and amplitude of the pendulum-driven hydraulic cylinder, and thus controls the swing speed and amplitude of the pendulum.

[0017] The belt weighing device and the rock wool felt stacking device form a closed-loop adjustment system, which realizes automatic detection and adjustment of the rock wool bulk density, greatly shortens the lateral bulk density feedback time, improves the adjustment efficiency, and enhances the product quality.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The lateral bulk density distribution of the rock wool can be monitored in real time, greatly shortening the feedback time. After each adjustment based on the existing results, the effect of the adjustment can be observed in just a few seconds. The weighing process is dynamic and does not affect the continuous production process of rock wool. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 This is an overall structural diagram of a rock wool production weighing belt device provided in Example 1 of the present utility model;

[0022] Figure 2 for Figure 1 A magnified view of some structures;

[0023] Figure 3 A side view of a rock wool production weighing belt device provided in Example 1 of the present utility model;

[0024] Figure 4 This is a structural diagram from the discharge end perspective of a rock wool production weighing belt device provided in Example 1 of the present utility model;

[0025] Figure 5 This is a schematic diagram of the structure of a pendulum machine in a feedback adjustment system for rock wool bulk density provided in Example 2 of the present utility model.

[0026] Among them, 1-frame, 2-weighing belt, 3-driving motor, 4-weighing sensor;

[0027] 101-support beam, 102-upper support rod, 103-lower support rod;

[0028] 201-bearing seat;

[0029] The weighing sensor on the left side of the discharge end of No. 401-3 belt, and the weighing sensor on the right side of the discharge end of No. 402-3 belt;

[0030] 501- pendulum frame, 502- pendulum 502, 503- pendulum driving hydraulic cylinder, 504- input belt, 505- primary felt, 506- forming belt. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Example 1, a rock wool production weighing belt device

[0034] like Figure 1 As shown, the device comprises a frame 1, several independent weighing belts 2 mounted on the frame 1, a drive motor 3 for each weighing belt, and a load cell 4. The weighing belts 2 are arranged side by side on the frame 1, parallel to the production line. The frame is equipped with transverse support beams 101 at both the infeed and outfeed ends. Each weighing belt 2 has a bearing block 201 at each end of its central axis. An upper support rod 102 and a lower support rod 103 are positioned vertically between the bearing block 201 and the support beam 101. The load cell 4 is located between the upper and lower support rods 102, 103. To prevent the weight from being dispersed elsewhere, the upper and lower support rods 102, 103 are disconnected.

[0035] The supporting beam 101 is arranged horizontally.

[0036] As an embodiment, the device includes four sets of separate weighing belts 2, each set of weighing belts includes a belt with a width of 55 cm; Figure 2 In the figure, taking weighing belt No. 3 as an example, at the discharge end, weighing sensor 401 on the left side of the discharge end of belt No. 3 and weighing sensor 402 on the right side of the discharge end of belt No. 3 are respectively set on both sides of weighing belt No. 3, and both are respectively located between the upper support rod 102 and the lower support rod 103 on their respective sides. Similarly, two weighing sensors are also set at the feed end of belt No. 3. The weighing sensors adopt S-type sensors or cantilever beam weighing sensors. It can be seen that each weighing belt has 4 separate support legs, and each support leg has a weighing sensor in it. For example, weighing belt No. 1 is supported by four sensors (the left sensor at the feed end of belt No. 1, the right sensor at the feed end of belt No. 1, the left sensor at the discharge end of belt No. 1 and the right sensor at the discharge end of belt No. 1), so the sum of the weights of the four sensors is the sum of the weights of all products on weighing belt No. 1.

[0037] The weighing belt device also includes a reading meter connected to the weighing sensors of each weighing belt, which receives the weight signal transmitted by each weighing sensor, thereby observing the bulk density distribution. The difference in readings can be used to observe which belt is heavier or lighter.

[0038] like Figure 3 and Figure 4 As shown, Figure 3 In the figure, the left side is the feeding end and the right side is the discharging end. The driving motor 3 of the weighing belt is connected to each group of weighing belts through a transmission mechanism. The structure adopts a conventional method in this field and is not limited here. Figure 4 From the perspective of the discharging end, from left to right are weighing belt drive motor No. 1, weighing belt drive motor No. 2, weighing belt drive motor No. 3, and weighing belt drive motor No. 4.

[0039] In special cases, the number of belts can be increased to 8, allowing for more accurate detection and recording of bulk density distribution, thus optimizing production. Increasing the number of belts allows for more detailed monitoring of bulk density distribution in the lateral direction, but this also creates difficulties in spatially arranging equipment such as motors.

[0040] Example 2: A feedback control system for rock wool bulk density

[0041] It includes the weighing belt device provided in Example 1 and a rock wool felt stacking device arranged in front of its feed end, and the rock wool stacking device is a pendulum machine.

[0042] like Figure 5 As shown, the pendulum machine can refer to the structure of the prior patent "A pendulum structure and rock wool output mechanism" (application number: CN202321267368.5), including a pendulum frame 501, a pendulum 502, a pendulum driving hydraulic cylinder 503, and an input belt 504. The primary felt 505 is transported to the pendulum 502 by the input belt 504, and is flattened on the forming belt 506 below the pendulum when the pendulum 202 swings; the difference is that the pendulum swinging plane is perpendicular to the forward direction of the forming belt 506.

[0043] It also includes a PLC controller, which is respectively connected to the pendulum-driven hydraulic cylinder 503 of the pendulum cotton spreading device and each weighing sensor of the rock wool production weighing belt device, receives the total weight signal of each weighing belt weighing sensor, controls the extension speed and amplitude of the pendulum-driven hydraulic cylinder 503, and thus controls the swing speed and amplitude of the pendulum.

[0044] The working principle of this device is that the weighing belt's speed remains essentially constant, while the pendulum's swing speed and amplitude are adjustable. This device uses the pendulum's speed between different positions to control the amount of cotton noil. A slower speed within a certain interval equates to a longer duration, resulting in a higher cotton output and a higher bulk density. This effect is achieved by directly adjusting the pendulum's swing speed and amplitude based on the load cell readings.

[0045] After the rock wool is laid, it is transported by the forming belt to the feed end of the weighing belt device provided in Example 1. Since the four separate belts bear the weight respectively, the readings of belts 1-4 can be read at this time to observe the bulk density distribution. Belt 1 represents the weight of the product on the far right of the rock wool's forward direction, and so on. It is possible to monitor the uniformity of the bulk density distribution after the rock wool is laid and the lack of bulk density. For example, if it is detected that the bulk density of the rock wool board at the corresponding position of belt 3 is too light, the pendulum is automatically controlled manually or through a PLC controller to extend the swing time at the corresponding position (slowing down the extension and retraction speed of the pendulum-driven hydraulic cylinder), thereby increasing the amount of cotton laid at belt 3 to ensure that the bulk density difference between the final products is small.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A rock wool production weighing belt device, characterized in that: It includes a frame, and several groups of independent weighing belts arranged on the frame, and each group of weighing belts has its own weighing sensor; the groups of weighing belts are arranged side by side on the frame, each group of weighing flat belts is parallel to the direction of the production line, and each group of weighing belts is connected to the frame through its own weighing sensor.

2. The weighing belt device according to claim 1, characterized in that: The frame is respectively provided with horizontal supporting beams at the feed end and the discharge end, and respective bearing seats are provided at both ends of the central axis of each group of weighing belts. An upper supporting rod and a lower supporting rod located on the same vertical line are provided between the bearing seats and the supporting beams, and the upper supporting rod and the lower supporting rod are connected by a weighing sensor.

3. The weighing belt device according to claim 2, characterized in that: The supporting beam is arranged horizontally and is located below the weighing belt.

4. The weighing belt device according to claim 1, characterized in that: Also included is a drive motor for each set of weighing belts.

5. The weighing belt device according to claim 1, characterized in that: The weighing belt device includes four groups of weighing belts, and each group of weighing belts includes one belt.

6. The weighing belt device according to claim 1, characterized in that: The weighing sensor adopts an S-type sensor or a cantilever beam weighing sensor.

7. The weighing belt device according to claim 1, characterized in that: The weighing belt device also includes a reading meter connected to the weight sensors of each weighing belt, which receives the weight signal transmitted by each weighing sensor, thereby observing the bulk density distribution.

8. A feedback control system for rock wool bulk density, characterized in that: It comprises the weighing belt device according to any one of claims 1 to 7 and a rock wool felt laying device arranged in front of its feed end, wherein the rock wool laying device is a pendulum machine.

9. The feedback adjustment system according to claim 8, characterized in that: The pendulum machine includes a pendulum frame, a pendulum arranged on the pendulum frame, a pendulum driving hydraulic cylinder, an input belt and a forming belt located below the pendulum; the pendulum swing plane is perpendicular to the forward direction of the forming belt.

10. The feedback adjustment system according to claim 9, characterized in that: It also includes a PLC controller, which is respectively connected to the pendulum-driven hydraulic cylinder of the pendulum cotton spreading device and each weighing sensor of the rock wool production weighing belt device, receives the total weight signal of each weighing belt weighing sensor, and controls the action of the pendulum-driven hydraulic cylinder.

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