Production process of artistic well lid

Abstract

The application discloses a production process of an artistic well lid, which comprises the following steps: after composite metal material and concrete are mixed and stirred according to raw material proportioning, the mixture is poured into an artistic well lid forming die, is uniformly rolled through rolling equipment, the rolled artistic well lid is placed, and the artistic well lid is subjected to demolding and finishing treatment to obtain the artistic well lid; a forming monitoring system of the application gives a pressure value of actual production of the artistic well lid according to the proportioning of the collected material of the artistic well lid itself and in combination with the material added into the die under the action of external environment, so that the artistic well lid is more targeted to be compacted, and the quality of the artistic well lid product is ensured; the rolling state of the artistic well lid is monitored in real time, and when deviation occurs, timely repair treatment is conducted, so that the obtained artistic well lid meets the process requirements and has good strength.

Description

Technical Field

[0001] This invention relates to the field of artistic manhole cover technology, and specifically to a production process for artistic manhole covers. Background Technology

[0002] Chinese patent CN216552089U discloses a stamped artistic manhole cover, comprising: a manhole cover base, a manhole cover disposed within the manhole cover base, and a fixing member for fixing and connecting the manhole cover base and the manhole cover; the manhole cover includes a manhole cover surface and manhole cover edges disposed around the manhole cover surface, with several grooves pressed into the manhole cover surface and channel steel disposed between the corresponding manhole cover edges; the manhole cover base is provided with an inner horizontal plate, and the manhole cover overlaps within the manhole cover base through the inner horizontal plate; a connecting hook for fixing the manhole cover base to the manhole opening end is provided on the outer surface of the manhole cover base;

[0003] In the existing technology, during the production process of artistic manhole covers, the raw materials are added into the mold for rolling, but the rolling pressure cannot be effectively monitored, resulting in uneven quality of the formed artistic manhole covers. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned above in the background technology and to propose a production process for artistic manhole covers.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A manufacturing process for artistic manhole covers includes the following steps:

[0007] After mixing the composite metal material and concrete according to the raw material ratio, the mixture is poured into the mold for making artistic manhole covers. It is then rolled evenly using a rolling device. After the rolled artistic manhole cover is left to stand for 1-1.5 days, it is demolded and trimmed to obtain the artistic manhole cover.

[0008] The rolling process of the raw materials is monitored by a forming monitoring system, which includes:

[0009] The data acquisition module obtains the ratio of composite metal material ZP and concrete GZ, the total weight of raw materials GZ, and the temperature ZT and humidity ZS of the environment where the mold is located.

[0010] The analysis module obtains the proportion value ZP and the total weight of raw materials GZ from the acquisition module, calculates the influence value of the artistic manhole cover molding, and allocates molding parameters based on the influence value of the artistic manhole cover molding.

[0011] The monitoring module monitors the rolling status of the rolling equipment in real time to ensure the quality of the artistic manhole cover molding.

[0012] The processing module, when it receives a rolling failure signal from the monitoring module, controls the rolling equipment to re-roll the raw material in the mold. When it receives a rolling alarm signal from the monitoring module, it controls the rolling pressure of the rolling equipment on the subsequent mold.

[0013] As a further aspect of the present invention, the specific working process of the analysis module is as follows:

[0014] The influence value ZYC on the material forming of the artistic manhole cover is calculated using the formula ZYC=a1*ZP+a2*GZ; where a1 and a2 are both proportional coefficients.

[0015] The forming influence value ZYC of the artistic manhole cover will be obtained, and the forming pressure value ZPC of the artistic manhole cover will be obtained through the forming pressure curve of the influence value-forming pressure.

[0016] As a further aspect of the present invention: the analysis module further includes:

[0017] The temperature value ZT and humidity value ZS of the environment in which the mold is located are obtained. The environmental molding influence value ZYH of the artistic manhole cover is calculated by the formula ZYH=a3*ZT+a4*ZS; where a3 and a4 are proportional coefficients.

[0018] Based on the environmental molding influence value ZYH of the artistic manhole cover, the molding pressure coefficient is Kw;

[0019] The actual value of the molding pressure ZSP is calculated using the formula ZSP=(1+kw)*ZPC.

[0020] As a further aspect of the present invention, the specific working process of the monitoring module is as follows:

[0021] Step 1: Obtain the online value of molding pressure ZZP, calculate the difference between the online value of molding pressure ZZP and the actual value of molding pressure ZSP, and obtain the pressure difference value CZP;

[0022] Step 2: Obtain the pressure difference range of the rolling mill. If the pressure difference CZP is within the pressure difference range, no operation is performed. If the pressure difference CZP is not within the pressure difference range, proceed to the next step.

[0023] Step 3: Set the pressure monitoring time period with the rolling equipment acting on the mold as the detection start time T0 and the rolling equipment acting on the mold in real time as the detection end time Ti. Within the monitoring time period, randomly set two monitoring time points T1 and T2, where T1 < T2. Then, obtain the pressures PT0, PT1, PT2, and PTi of the rolling equipment at the detection start time T0, monitoring time point T1, monitoring time point T2, and detection end time Ti.

[0024] The formula ZPP = b1 * (PT0 - PT1)2 +b2*(PT1-PT2) 2 +b3*(PT2-PT i) 2 The pressure deviation value ZPP is calculated; where b1, b2, and b3 are proportionality coefficients.

[0025] As a further aspect of the present invention: the pressure deviation value ZPP is compared with the pressure deviation thresholds X1 and X2, wherein X1 < X2;

[0026] If ZPP≤X1, a rolling failure signal is generated; if X1<ZPP≤X2, a rolling pass signal is generated; if X2<ZPP, a rolling alarm signal is generated.

[0027] As a further aspect of the present invention, the composite metal material comprises the following raw materials in parts by weight: 10-15 parts aluminum-magnesium alloy, 25-30 parts boron fiber, and 60-65 parts synthetic resin.

[0028] As a further embodiment of the present invention, the concrete comprises the following raw materials in parts by weight: 900-1150 parts crushed stone, 650-850 parts sand, 220-260 parts silicate cement, 130-160 parts water, 65-90 parts fly ash, 1-3 parts polycarboxylate superplasticizer, and 0.2-1.5 parts carbon nanotube fiber.

[0029] The beneficial effects of this invention are:

[0030] (1) The present invention prepares artistic manhole covers by rolling composite metal materials with concrete, which can effectively improve the crack resistance and compressive strength of artistic manhole covers;

[0031] (2) The molding monitoring system of the present invention, based on the material ratio of the art manhole cover itself, and combined with the material being added into the mold, applies pressure values ​​to the art manhole cover during actual production under the action of the external environment, so as to compact the art manhole cover more specifically and ensure the quality of the art manhole cover product; avoids the use of specific pressure values ​​due to the influence of material or environmental factors, which may result in insufficient product bonding; monitors the rolling state of the art manhole cover in real time to ensure that it is within a reasonable range, and repairs it in time when deviation occurs, thereby ensuring that the obtained art manhole cover meets the process requirements and has good strength. Attached Figure Description

[0032] The invention will now be further described with reference to the accompanying drawings.

[0033] Figure 1 This is a system block diagram of the molding monitoring system of the present invention. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] This invention relates to a manufacturing process for artistic manhole covers, comprising the following steps:

[0037] After mixing the composite metal material and concrete according to the raw material ratio, the mixture is poured into the mold for making artistic manhole covers. It is then rolled evenly using a rolling device. After the rolled artistic manhole cover is left to stand for 1-1.5 days, it is demolded and trimmed to obtain the artistic manhole cover.

[0038] The composite metal material includes the following raw materials by weight: 10 parts aluminum-magnesium alloy, 25 parts boron fiber and 60 parts synthetic resin.

[0039] Concrete comprises the following raw materials by weight: 900 parts crushed stone, 6500 parts sand, 220 parts silicate cement, 130 parts water, 65 parts fly ash, 1 part polycarboxylate superplasticizer, and 0.2 parts carbon nanotube fiber.

[0040] Example 2

[0041] This invention relates to a manufacturing process for artistic manhole covers, comprising the following steps:

[0042] After mixing the composite metal material and concrete according to the raw material ratio, the mixture is poured into the mold for making artistic manhole covers. It is then rolled evenly using a rolling device. After the rolled artistic manhole cover is left to stand for 1-1.5 days, it is demolded and trimmed to obtain the artistic manhole cover.

[0043] The composite metal material includes the following raw materials by weight: 12 parts aluminum-magnesium alloy, 28 parts boron fiber and 63 parts synthetic resin;

[0044] Concrete comprises the following raw materials by weight: 1000 parts crushed stone, 750 parts sand, 240 parts silicate cement, 140 parts water, 80 parts fly ash, 2 parts polycarboxylate superplasticizer, and 1.0 part carbon nanotube fiber.

[0045] Example 3

[0046] This invention relates to a manufacturing process for artistic manhole covers, comprising the following steps:

[0047] After mixing the composite metal material and concrete according to the raw material ratio, the mixture is poured into the mold for making artistic manhole covers. It is then rolled evenly using a rolling device. After the rolled artistic manhole cover is left to stand for 1-1.5 days, it is demolded and trimmed to obtain the artistic manhole cover.

[0048] The composite metal material includes the following raw materials by weight: 15 parts aluminum-magnesium alloy, 30 parts boron fiber and 65 parts synthetic resin.

[0049] Concrete comprises the following raw materials by weight: 1150 parts crushed stone, 850 parts sand, 260 parts silicate cement, 160 parts water, 90 parts fly ash, 3 parts polycarboxylate superplasticizer, and 1.5 parts carbon nanotube fiber.

[0050] Example 4

[0051] Based on the above embodiments 1-3, the rolling of raw materials is monitored by a forming monitoring system, which includes:

[0052] The data acquisition module obtains the mix proportions of the composite metal material and concrete, and marks them as ZP; the total weight of the raw materials, and marks them as GZ; and the temperature and humidity values ​​of the environment where the mold is located, and marks them as ZT and ZS respectively.

[0053] The analysis module obtains the proportion value ZP and the total weight of raw materials GZ from the acquisition module, calculates the influence value of the artistic manhole cover molding, and allocates molding parameters based on the influence value of the artistic manhole cover molding.

[0054] The specific working process of this analysis module is as follows:

[0055] Step 1: Obtain the proportion value ZP and the total weight of raw materials GZ from the acquisition module. Calculate the influence value ZYC on the molding of the art manhole cover material using the formula ZYC=a1*ZP+a2*GZ. Where a1 and a2 are proportionality coefficients, a1+a2=1.2, 0<a1<a2<1.2.

[0056] Step 2: Substitute the obtained artistic manhole cover forming influence value ZYC into a coordinate system with the artistic manhole cover forming influence value as the X-axis and forming pressure as the Y-axis. This coordinate system has a preset influence value-forming pressure curve. Obtain the artistic manhole cover forming pressure value ZPC through the influence value-forming pressure curve.

[0057] Step 3: Obtain the temperature value ZT and humidity value ZS of the environment where the mold is located. Calculate the environmental molding influence value ZYH of the artistic manhole cover using the formula ZYH=a3*ZT+a4*ZS; where a3 and a4 are proportionality coefficients, a3+a4=1, 0<a3<a4<1;

[0058] Step 3: Based on the environmental molding influence value ZYH of the artistic manhole cover, set the molding pressure coefficient as Kj; j = 1, 2, ..., w; and K1 < K2 < ... < Kw; each molding pressure coefficient Kj corresponds to the range of environmental molding influence value of the artistic manhole cover, namely (W1, W2], (W2, W3], ..., (Ww, Ww+1]; and W1 < W2 < ... < Ww < Ww+1;

[0059] When ZYH∈(Ww,Ww+1], the molding pressure coefficient is Kw;

[0060] Step 4: Substitute the obtained molding pressure value ZPC and molding pressure coefficient Kw into the formula ZSP=(1+kw)*ZPC to calculate the actual molding pressure value ZSP.

[0061] The analysis module of this invention, based on the collected material ratio of the artistic manhole cover, and combined with the pressure value applied to the artistic manhole cover during actual production under the influence of the external environment, provides more targeted compaction to the artistic manhole cover, ensuring the quality of the artistic manhole cover product; and avoids the use of specific pressure values ​​due to factors such as materials or environment, which may result in insufficient bonding of the product.

[0062] The monitoring module monitors the rolling status of the rolling equipment in real time to ensure the quality of the artistic manhole cover molding.

[0063] The specific working process of this monitoring module is as follows:

[0064] Step 1: Obtain the online value of molding pressure ZZP, calculate the difference between the online value of molding pressure ZZP and the actual value of molding pressure ZSP, and obtain the pressure difference value CZP;

[0065] Step 2: Obtain the pressure difference range of the rolling mill. If the pressure difference CZP is within the pressure difference range, no operation is performed. If the pressure difference CZP is not within the pressure difference range, proceed to the next step.

[0066] Step 3: Set the pressure monitoring time period with the rolling equipment acting on the mold as the detection start time T0 and the rolling equipment acting on the mold in real time as the detection end time Ti. Within the monitoring time period, randomly set two monitoring time points T1 and T2, where T1 < T2. Then, obtain the pressures PT0, PT1, PT2, and PTi of the rolling equipment at the detection start time T0, monitoring time point T1, monitoring time point T2, and detection end time Ti.

[0067] The formula ZPP = b1 * (PT0 - PT1) 2 +b2*(PT1-PT2) 2 +b3*(PT2-PT i)2 The pressure deviation value ZPP is calculated; where b1, b2, and b3 are proportionality coefficients, b1+b2+b3=3.5, 0<b1<b2<b3<13.5;

[0068] Step 4: Compare the pressure deviation value ZPP with the pressure deviation thresholds X1 and X2, where X1 < X2;

[0069] If ZPP≤X1, a rolling failure signal is generated; if X1<ZPP≤X2, a rolling pass signal is generated; if X2<ZPP, a rolling alarm signal is generated.

[0070] The processing module, when it receives a rolling failure signal from the monitoring module, controls the rolling equipment to re-roll the raw material in the mold; when it receives a rolling alarm signal from the monitoring module, it controls the rolling pressure of the rolling equipment on the subsequent mold.

[0071] The specific working process of its processing module is as follows:

[0072] Step 1: Obtain the pressures PT0, PT1, PT2, and PTi at the detection start time T0, monitoring time point T1, monitoring time point T2, and detection end time Ti. Calculate the average pressure ZJY using the formula ZJY=(PT0+PT1+PT2+PT i) / (i-0).

[0073] Step 2: Substitute the obtained average pressure value ZJY and the actual molding pressure value ZSP into the formula ZJSY=(ZSP-c1*ZJY). 2 / c2 2 In the calculation, the average remaining mold pressure ZJSY is calculated; where c1 and c2 are both proportionality coefficients, c1+c2=2.4, 0.4<c1<c2<2.4;

[0074] The average remaining die pressure ZJSY is sent to the rolling equipment to control the rolling of the material in the subsequent dies;

[0075] The monitoring module of this invention monitors the rolling state of the artistic manhole cover in real time, ensuring that it is within a reasonable range. When deviations occur, it is repaired in a timely manner, thereby ensuring that the resulting artistic manhole cover meets the process requirements and has good strength.

[0076] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A manufacturing process for artistic manhole covers, characterized in that, Includes the following steps: After mixing the composite metal material and concrete according to the raw material ratio, the mixture is poured into the mold for making artistic manhole covers. It is then rolled evenly using a rolling device. After the rolled artistic manhole cover is left to stand for 1-1.5 days, it is demolded and trimmed to obtain the artistic manhole cover. The rolling process of the raw materials is monitored by a forming monitoring system, which includes: The data acquisition module obtains the mix proportions of composite metal materials and concrete (ZP), the total weight of raw materials (GZ), and the temperature (ZT) and humidity (ZS) of the environment where the mold is located. The analysis module obtains the proportioning value ZP and the total weight of raw materials GZ from the acquisition module, calculates the influence value of the artistic manhole cover molding, and allocates molding parameters based on the influence value. The specific working process of the analysis module is as follows: The influence value ZYC on the material forming of the artistic manhole cover is calculated using the formula ZYC=a1*ZP+a2*GZ; where a1 and a2 are both proportional coefficients. The forming influence value ZYC of the artistic manhole cover will be obtained, and the forming pressure value ZPC of the artistic manhole cover will be obtained through the forming pressure curve of the influence value-forming pressure. The analysis module also includes: obtaining the temperature value ZT and humidity value ZS of the environment in which the mold is located, and calculating the environmental molding influence value ZYH of the artistic manhole cover using the formula ZYH=a3*ZT+a4*ZS; where a3 and a4 are proportionality coefficients. Based on the environmental molding influence value ZYH of the artistic manhole cover, the molding pressure coefficient is Kw; The actual molding pressure ZSP can be calculated using the formula ZSP = (1 + kW) * ZPC. The monitoring module monitors the rolling status of the rolling equipment in real time to ensure the quality of the artistic manhole cover molding. The specific working process of the monitoring module is as follows: Step 1: Obtain the online value of molding pressure ZZP, calculate the difference between the online value of molding pressure ZZP and the actual value of molding pressure ZSP, and obtain the pressure difference value CZP; Step 2: Obtain the pressure difference range of the rolling mill. If the pressure difference CZP is within the pressure difference range, no operation is performed. If the pressure difference CZP is not within the pressure difference range, proceed to the next step. Step 3: Set the pressure monitoring time period with the rolling equipment acting on the mold as the detection start time T0 and the rolling equipment acting on the mold in real time as the detection end time Ti. Within the monitoring time period, randomly set two monitoring time points T1 and T2, where T1 < T2. Then, obtain the pressures PT0, PT1, PT2, and PTi of the rolling equipment at the detection start time T0, monitoring time point T1, monitoring time point T2, and detection end time Ti. The formula ZPP = b1 * (PT0 - PT1) is used. 2 +b2*(PT1-PT2) 2 +b3*(PT2-PTi) 2 The pressure deviation value ZPP is calculated; where b1, b2, and b3 are proportionality coefficients. The processing module, when it receives a rolling failure signal from the monitoring module, controls the rolling equipment to re-roll the raw material in the mold. When it receives a rolling alarm signal from the monitoring module, it controls the rolling pressure of the rolling equipment on the subsequent mold.

2. The manufacturing process of an artistic manhole cover according to claim 1, characterized in that, Compare the pressure deviation value ZPP with the pressure deviation thresholds X1 and X2, where X1 < X2; If ZPP≤X1, a rolling failure signal is generated; if X1<ZPP≤X2, a rolling pass signal is generated; if X2<ZPP, a rolling alarm signal is generated.

3. The manufacturing process of an artistic manhole cover according to claim 1, characterized in that, The composite metal material comprises the following raw materials in parts by weight: 10-15 parts aluminum-magnesium alloy, 25-30 parts boron fiber, and 60-65 parts synthetic resin.

4. The manufacturing process of an artistic manhole cover according to claim 1, characterized in that, Concrete comprises the following raw materials by weight: 900-1150 parts crushed stone, 650-850 parts sand, 220-260 parts silicate cement, 130-160 parts water, 65-90 parts fly ash, 1-3 parts polycarboxylate superplasticizer, and 0.2-1.5 parts carbon nanotube fiber.

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