CN111070530A - Well lid production process - Google Patents
Well lid production process Download PDFInfo
- Publication number
- CN111070530A CN111070530A CN201911366554.2A CN201911366554A CN111070530A CN 111070530 A CN111070530 A CN 111070530A CN 201911366554 A CN201911366554 A CN 201911366554A CN 111070530 A CN111070530 A CN 111070530A
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- China
- Prior art keywords
- powder
- spraying
- upper die
- well lid
- production process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention relates to a well lid production process, which comprises the following steps: A. discharging: placing the raw material in a lower die; B. spraying molding powder: spraying molding powder on the upper die to form a required pattern; C. heating and pressing: the upper die descends, the raw material is pressed and formed, the upper die and the lower die are heated at the same time, and the heat of the upper die and the lower die is conducted to the raw material and the plastic powder, so that the plastic powder and the raw material are integrated, and the well cover is formed; D. taking a workpiece: and taking out the well cover in the lower die. After adopting such scheme, the pattern on well lid surface has better adhesive force, wearability and weatherability, and difficult wearing and tearing or drop.
Description
Technical Field
The invention relates to a well lid production process.
Background
The well lid is used for covering a road or a deep well at home and preventing people or objects from falling. Production well lid needs dedicated production facility, and well lid production facility mainly comprises workstation, last mould, lower mould, heating element and power device, and heating element installs in last mould and lower mould, and the lower mould is installed on the workstation, is provided with the guide post on the workstation, and power device installs on the guide post, goes up the mould and is located the top of lower mould, and power device is connected with last mould and makes and go up the mould and slide from top to bottom. When the preparation well lid, place raw and other materials in the recess of lower mould earlier, then go up the mould decline for raw and other materials in the lower mould receive the extrusion of last mould and fill up the recess of lower mould, because last mould and lower mould have higher temperature under heating element's effect, make raw and other materials melt the shaping, go up the mould at last and rise, then take out the well lid. Meanwhile, in order to improve the aesthetic degree of the well lid, various patterns are usually sprayed on the surface of the well lid by using paint, and the well lid is called as a colorful well lid or an artistic well lid. Before the spraying paint, need polish the well lid earlier, get rid of the surperficial surface release agent of well lid, make the well lid surface become roughly, increase the adhesive force of paint, then spout the finish, when the pattern has multiple color, need spray repeatedly, consequently, the process of processing colored well lid is comparatively loaded down with trivial details, simultaneously, because adhesive force, wearability and the weatherability of the paint on well lid surface are not ideal enough for the pattern on well lid surface is worn and torn easily or is come off.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a well lid production process, wherein patterns on the surface of a well lid have good adhesive force, wear resistance and weather resistance, and are not easy to wear or fall off.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a well lid production process comprises the following steps:
A. discharging: placing the raw material in a lower die;
B. spraying molding powder: spraying molding powder on the upper die to form a required pattern;
C. heating and pressing: the upper die descends to enable the raw material in the lower die to be extruded by the upper die to fill the groove of the lower die, the upper die and the lower die are heated at the same time, and the heat of the upper die and the lower die is conducted to the raw material and the plastic powder, so that the plastic powder and the raw material are integrated, and the well cover is molded;
D. taking a workpiece: and taking out the well cover in the lower die.
In the production process of the well lid, in the working procedure B, the plastic powder has positive charges, and in the working procedure C, the upper die has negative charges.
In the above-mentioned manhole cover production process, in the described working procedure B an electrostatic generator is used to make the plastic powder possess positive charge and make the upper mould possess negative charge.
In the above-mentioned production process of the manhole cover, in the step B, the powder spraying component is used to spray the plastic powder on the upper mold, the powder spraying component is composed of the pattern plate and the plastic powder spray head, the plastic powder spray head sprays the plastic powder upwards, and the plastic powder passes through the through hole on the pattern plate and is attached to the upper mold.
In the above well lid production process, in the step B, the lower die is arranged on the workbench, the upper die is arranged above the lower die in a sliding manner, the powder spraying component is driven by a hydraulic device to slide, first guide rails are arranged on two sides of the lower die, a plurality of groups of powder spraying components are arranged in the vertical direction, each group of powder spraying components is correspondingly provided with a power device, each group of powder spraying components is correspondingly provided with a second guide rail, the second guide rail is arranged on a lifting seat, the powder spraying components are connected with the second guide rail in a sliding way, the lifting of the lifting seat enables the second guide rail at the bottom of the powder spraying components to be aligned with the first guide rail, the power device drives the powder spraying components to slide to the first guide rail along the second guide rail, and (3) spraying powder to the upper die, returning the powder spraying component to the original position after powder spraying is finished, and then, lifting the lifting seat to promote other powder spraying components to spray powder to the upper die for multiple times in the same way according to the requirement.
In the above well lid production process, in the step B, the powder injection nozzle is driven by the powder injection driving component to inject powder, the powder injection driving component comprises a gas storage tank, a powder pump, a powder barrel and a gas guide tube, a vulcanizing gas valve is arranged on the powder barrel, the powder pump is connected with the gas storage tank through the gas guide tube, the powder barrel is connected with the powder pump through the gas guide tube, the powder pump is connected with the powder injection nozzle through the gas guide tube, the vulcanizing gas enters the powder barrel through the vulcanizing gas valve, the powder is blown into the powder pump, and the plastic powder in the powder pump is driven by the gas pressure in the gas storage tank to move along the gas guide tube and finally sprayed out from the powder injection nozzle.
In the above well lid production process, in the step B, the secondary gas is applied to the powder pump to improve the atomization degree of the molding powder, so that the powder sprayed from the molding powder spray head is more uniform.
In the above well lid production process, in the step B, the molding powder nozzle can be lifted up and down to adjust the distance between the molding powder nozzle and the upper die, thereby controlling the spraying area and the spraying shade.
In the production process of the well lid, in the step B, the plastic powder spray head is controlled to lift by the lifting assembly, the lifting assembly consists of the guide rod and the guide sleeve, the spray head is installed on the guide rod, the guide rod is in threaded connection with the guide sleeve, and the guide rod is rotated to lift the guide rod.
The invention has the beneficial effects that: the molding powder and the raw materials are melted into a whole at high temperature, so that the pattern formed on the surface of the well lid has good adhesive force, wear resistance and weather resistance, and is not easy to wear or fall off.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
a well lid production process comprises the following steps:
A. discharging: placing the raw material in a lower die;
B. spraying molding powder: spraying molding powder on the upper die to form a required pattern;
C. heating and pressing: the upper die descends to enable the raw material in the lower die to be extruded by the upper die to fill the groove of the lower die, the upper die and the lower die are heated at the same time, and the heat of the upper die and the lower die is conducted to the raw material and the plastic powder, so that the plastic powder and the raw material are integrated, and the well cover is molded;
D. taking a workpiece: and taking out the well cover in the lower die.
Compared with the prior art, the well lid production process has the advantages that: the molding powder and the raw materials are melted into a whole at high temperature, so that the pattern formed on the surface of the well lid has good adhesive force, wear resistance and weather resistance, and is not easy to wear or fall off.
In the step B, the molding powder has a positive charge, and in the step C, the upper mold has a negative charge.
Thus, the positive charges and the negative charges are mutually attracted, so that the molding powder can be better attached to the upper die and is not easy to fall off.
In addition, in the step B, an electrostatic generator is adopted to make the molding powder have positive charges and the upper die have negative charges.
In addition, in the step B, the powder spraying component is adopted to spray the plastic powder on the upper die, the powder spraying component consists of a pattern plate and a plastic powder spray head, the plastic powder spray head sprays the plastic powder upwards, and the plastic powder penetrates through the through hole on the pattern plate and is attached to the upper die.
Thus, the molding powder attached to the upper mold can be easily formed into a desired pattern.
In addition, in the step B, the lower die is mounted on the workbench, the upper die is slidably mounted above the lower die and is driven to slide by the hydraulic device, first guide rails are arranged on two sides of the lower die, multiple groups of powder spraying assemblies are arranged in the vertical direction, a power device is correspondingly arranged on each group of powder spraying assemblies, a second guide rail is correspondingly arranged on each group of powder spraying assemblies, the second guide rails are mounted on the lifting seat, the powder spraying assemblies are slidably connected with the second guide rails, the lifting of the lifting seat enables the second guide rails at the bottoms of the powder spraying assemblies to be aligned with the first guide rails, the power device drives the powder spraying assemblies to slide to the first guide rails along the second guide rails, powder is sprayed on the upper die, the powder spraying assemblies return to the original positions after powder spraying is completed, and then the lifting seat enables other powder spraying assemblies to spray powder on the upper die for multiple times in the same manner as required.
Therefore, the powder can be conveniently sprayed on the upper die for multiple times as required, so that the plastic powder with different colors is attached to the upper die, and compared with the production mode of manually polishing the well lid and spraying paint for multiple times in the traditional processing mode, the production efficiency of the color well lid is improved.
Example two:
in this embodiment, in the process B, the powder injection nozzle is driven by the powder injection driving component to inject powder, the powder injection driving component includes a gas storage tank, a powder pump, a powder barrel and a gas guide tube, a vulcanizing gas valve is disposed on the powder barrel, the powder pump is connected with the gas storage tank through the gas guide tube, the powder barrel is connected with the powder pump through the gas guide tube, the powder pump is connected with the powder injection nozzle through the gas guide tube, the vulcanizing gas enters the powder barrel through the vulcanizing gas valve, the powder is blown into the powder pump, and the gas in the gas storage tank causes the powder in the powder pump to move along the gas guide tube and finally to be ejected from the powder injection nozzle.
Therefore, the powder spraying operation of the plastic powder spray head is conveniently realized, meanwhile, the opening angle of the powder can be adjusted by the gas from the gas storage tank, the higher the gas pressure is, the smaller the opening angle is, and the spraying area is changed; the vulcanizer valve can also control the powder output, thereby controlling the shade degree of the molding powder sprayed from the molding powder spray head.
In the step B, the secondary air is supplied to the powder pump to increase the degree of atomization of the molding powder, so that the powder ejected from the molding powder ejection head is more uniform.
In addition, in the step B, the molding powder nozzle can be lifted up and down to adjust the distance between the molding powder nozzle and the upper die, so as to control the spraying area and the spraying shade.
In addition, in the step B, the plastic powder spray head is controlled to ascend and descend by the lifting assembly, the lifting assembly consists of a guide rod and a guide sleeve, the spray head is installed on the guide rod, the guide rod is in threaded connection with the guide sleeve, and the guide rod is rotated to realize the ascending and descending of the guide rod.
In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The well lid production process is characterized by comprising the following steps of:
A. discharging: placing the raw material in a lower die;
B. spraying molding powder: spraying molding powder on the upper die to form a required pattern;
C. heating and pressing: the upper die descends to enable the raw material in the lower die to be extruded by the upper die to fill the groove of the lower die, the upper die and the lower die are heated at the same time, and the heat of the upper die and the lower die is conducted to the raw material and the plastic powder, so that the plastic powder and the raw material are integrated, and the well cover is molded;
D. taking a workpiece: and taking out the well cover in the lower die.
2. The well lid production process according to claim 1, characterized in that: in the step B, the molding powder has positive charges, and in the step C, the upper die has negative charges.
3. The well lid production process according to claim 2, characterized in that: in the step B, an electrostatic generator is adopted to make the molding powder have positive charges and the upper mold have negative charges.
4. The manhole cover production process according to any one of claims 1 to 3, wherein: in the step B, the plastic powder is sprayed on the upper die by adopting a powder spraying assembly, the powder spraying assembly consists of a pattern plate and a plastic powder spray head, the plastic powder spray head sprays plastic powder upwards, and the plastic powder penetrates through the through hole on the pattern plate and is attached to the upper die.
5. The well lid production process according to claim 4, characterized in that: in the process B, the lower die is installed on the workbench, the upper die is slidably installed above the lower die and is driven to slide by a hydraulic device, first guide rails are arranged on two sides of the lower die, a plurality of groups of powder spraying assemblies are arranged in the vertical direction, each group of powder spraying assemblies is correspondingly provided with a power device, each group of powder spraying assemblies is correspondingly provided with a second guide rail, the second guide rails are installed on a lifting seat and are slidably connected with the second guide rails, the lifting of the lifting seat enables the second guide rails at the bottoms of the powder spraying assemblies to be aligned with the first guide rails, the power device drives the powder spraying assemblies to slide to the first guide rails along the second guide rails, powder is sprayed on the upper die, the powder spraying assemblies return to the original positions after powder spraying is completed, and then the lifting seat enables other powder spraying assemblies to spray powder on the upper die for multiple times in the same mode as required.
6. The well lid production process according to claim 5, characterized in that: in the working procedure B, the powder spraying nozzle is driven by the powder spraying driving assembly to spray powder, the powder spraying driving assembly comprises a gas storage tank, a powder pump, a powder barrel and a gas guide tube, a vulcanization gas valve is arranged on the powder barrel, the powder pump is connected with the gas storage tank through the gas guide tube, the powder barrel is connected with the powder pump through the gas guide tube, the powder pump is connected with the powder spraying nozzle through the gas guide tube, the vulcanization gas enters the powder barrel through the vulcanization gas valve, the powder is blown into the powder pump, and the gas pressure in the gas storage tank enables the powder in the powder pump to move along the gas guide tube and finally be sprayed out from the powder spraying nozzle.
7. The well lid production process according to claim 6, characterized in that: in the step B, the secondary gas is applied to the powder pump to improve the atomization degree of the molding powder, so that the powder sprayed from the molding powder spray head is more uniform.
8. The well lid production process according to claim 7, characterized in that: in the step B, the plastic powder spray head can be lifted up and down to adjust the distance between the plastic powder spray head and the upper die, so that the spraying area and the spraying shade can be controlled.
9. The well lid production process according to claim 8, characterized in that: in the step B, the plastic powder spray head is controlled to ascend and descend by the lifting assembly, the lifting assembly consists of a guide rod and a guide sleeve, the spray head is installed on the guide rod, the guide rod is in threaded connection with the guide sleeve, and the guide rod is rotated to realize the ascending and descending of the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366554.2A CN111070530A (en) | 2019-12-26 | 2019-12-26 | Well lid production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366554.2A CN111070530A (en) | 2019-12-26 | 2019-12-26 | Well lid production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111070530A true CN111070530A (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911366554.2A Pending CN111070530A (en) | 2019-12-26 | 2019-12-26 | Well lid production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111070530A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499001A (en) * | 2014-09-26 | 2016-04-20 | 宜昌金宝乐器制造有限公司 | Powder spraying device for piano iron plate |
| CN206425125U (en) * | 2017-01-20 | 2017-08-22 | 茂名市五金厂 | A kind of full-automatic spray-painting plant of steel drum |
| CN107325481A (en) * | 2017-08-16 | 2017-11-07 | 常州信息职业技术学院 | A kind of phenoplasts inspection shaft well lid and preparation method thereof |
| CN207343068U (en) * | 2017-06-15 | 2018-05-11 | 西安工业大学 | A kind of spray equipment |
| CN108127098A (en) * | 2017-12-28 | 2018-06-08 | 重庆康禾盛模具有限公司 | A kind of well lid die casting |
| CN207887435U (en) * | 2018-01-19 | 2018-09-21 | 长沙瑞正涂装科技有限公司 | A kind of dusting device that can replace color of dusting automatically |
| CN110409501A (en) * | 2019-07-30 | 2019-11-05 | 盐城高科道路设施有限公司 | A kind of GMT colour well lid production technology |
-
2019
- 2019-12-26 CN CN201911366554.2A patent/CN111070530A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499001A (en) * | 2014-09-26 | 2016-04-20 | 宜昌金宝乐器制造有限公司 | Powder spraying device for piano iron plate |
| CN206425125U (en) * | 2017-01-20 | 2017-08-22 | 茂名市五金厂 | A kind of full-automatic spray-painting plant of steel drum |
| CN207343068U (en) * | 2017-06-15 | 2018-05-11 | 西安工业大学 | A kind of spray equipment |
| CN107325481A (en) * | 2017-08-16 | 2017-11-07 | 常州信息职业技术学院 | A kind of phenoplasts inspection shaft well lid and preparation method thereof |
| CN108127098A (en) * | 2017-12-28 | 2018-06-08 | 重庆康禾盛模具有限公司 | A kind of well lid die casting |
| CN207887435U (en) * | 2018-01-19 | 2018-09-21 | 长沙瑞正涂装科技有限公司 | A kind of dusting device that can replace color of dusting automatically |
| CN110409501A (en) * | 2019-07-30 | 2019-11-05 | 盐城高科道路设施有限公司 | A kind of GMT colour well lid production technology |
Non-Patent Citations (1)
| Title |
|---|
| 孙德彬: "《普通高等教育室内与家具设计专业"十三五"规划教材 家具表面装饰工艺技术 第2版》", 31 October 2018 * |
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Application publication date: 20200428 |