阅读说明：本技术 一种表面带网格的聚氨酯输送辊生产方法 (Production method of polyurethane conveying roller with grids on surface ) 是由 谢发明 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种表面带网格的聚氨酯输送辊生产方法,通过事先制作浇注型模具和表面带网格状花纹的聚氨酯输送辊模芯,两者装配后,利用浇注机将聚氨酯浇筑到浇注型模具内,使得聚氨酯输送辊在注胶成型时,其表面产生有网格状花纹,以提高聚氨酯输送辊输送时的摩擦力,且通过使用不同的聚氨酯输送辊模芯,可以设计不同规格的表面花纹,且橡胶涂覆在聚氨酯输送辊的成型模具的模筒内壁上的工艺是非常简单的,制造成本低,本发明工艺简单,生产成本低,适用范围广。(The invention discloses a method for producing a polyurethane conveying roller with a grid on the surface, which comprises the steps of manufacturing a casting mold and a polyurethane conveying roller mold core with a grid pattern on the surface in advance, pouring polyurethane into the casting mold by a casting machine after the casting mold and the polyurethane conveying roller mold core are assembled, so that the grid pattern is generated on the surface of the polyurethane conveying roller during glue injection molding, and the friction force during conveying of the polyurethane conveying roller is improved.)

1. A production method of a polyurethane conveying roller with a grid on the surface is characterized by comprising the following manufacturing steps:

the method comprises the following steps: preparing a casting mold, preparing the casting mold of a polyurethane conveying roller according to the size specification of the polyurethane conveying roller, and then preparing a polyurethane conveying roller mold core matched with the casting mold, wherein the surface of the polyurethane conveying roller mold core is provided with latticed patterns; then fixedly installing a polyurethane conveying roller mold core in a mold cylinder of a casting mold, wherein a gap is reserved between the polyurethane conveying roller mold core and the inner wall of the mold cylinder;

step two: injecting glue for molding, namely vertically placing the molding dies of the plurality of polyurethane conveying rollers manufactured in the step one on a turnover appliance, conveying the polyurethane into a gap between a polyurethane conveying roller mold core and a mold cylinder by a polyurethane casting machine, and injecting glue for molding, wherein the surface of the molded polyurethane conveying roller is provided with latticed patterns;

step three: drying and vulcanizing, namely transferring the molded polyurethane conveying roller into a drying and vulcanizing chamber for final molding through the turnover appliance in the step two, wherein the drying time is 30-60 min;

step four: and (4) disassembling the polyurethane conveying roller from the casting mold, carrying out the edge cutting process on the finished polyurethane conveying roller, and then packaging and storing the polyurethane conveying roller.

2. The method for producing a polyurethane conveyor roller with a surface provided with grids as claimed in claim 1, wherein: in the first step, the patterns on the surface of the polyurethane conveying roller mold core are manufactured according to the actual requirements of customers.

3. The method for producing a polyurethane conveyor roller with a surface provided with grids as claimed in claim 1, wherein: in the second step, the shaft core of the polyurethane conveying roller is vertically installed in the forming mold of the polyurethane conveying roller, a fixing seat for fixing the shaft core is arranged at the bottom of the forming mold of the polyurethane conveying roller, and a sealing barrel cover is arranged at the upper part of the forming mold of the polyurethane conveying roller.

4. The method for producing a polyurethane conveyor roller with a surface provided with grids as claimed in claim 1, wherein: in the first step, the thickness of the rubber coated on the inner wall of the die cylinder of the forming die of the polyurethane conveying roller is 2-10 mm.

5. The method for producing a polyurethane conveyor roller with a surface provided with grids as claimed in claim 1, wherein: and in the second step, before the shaft core of the polyurethane conveying roller is installed, the surface of the shaft core is polished in advance.

6. The method for producing a polyurethane conveyor roller with a surface provided with grids as claimed in claim 1, wherein: in the second step, before injecting the polyurethane glue, the forming mold of the polyurethane conveying roller is preheated.

7. The method for producing a polyurethane conveyor roller with a surface provided with grids as claimed in claim 1, wherein: and in the fourth step, the disassembled polyurethane conveying roller forming die is cleaned by using a release agent, and the shaft core of the polyurethane conveying roller is continuously assembled after the polyurethane conveying roller forming die is cleaned, so that the subsequent glue injection forming is performed.

8. The method for producing a polyurethane conveyor roller with a surface provided with a mesh according to claim 1 or 7, wherein: before assembling the shaft core of the polyurethane conveying roller, a worker coats glue on the surface of the shaft core of the polyurethane conveying roller so that the polyurethane and the shaft core are tightly attached together.

Technical Field

The invention relates to the technical field of polyurethane conveying roller production, in particular to a production method of a polyurethane conveying roller with grids on the surface.

Background

The polyurethane conveying roller is an equipment part for conveying articles, has excellent physical properties, can not become hard and aged after long-term use of the rubber roller, has good tear resistance and rebound resilience, and excellent wear resistance, so that the polyurethane conveying roller has long service life, is easy to store, does not influence the use effect after long-term storage, and can bear a high-pressure, high-rotating-speed and high-humidity production environment;

however, most of the existing polyurethane conveying rollers have smooth surfaces, so that the friction force is insufficient, materials are easy to slip during conveying, and conveying efficiency is affected.

Disclosure of Invention

In order to solve the problems, the invention provides a production method of a polyurethane conveying roller with a grid on the surface, which comprises the steps of manufacturing a casting mold and a polyurethane conveying roller mold core with a grid-shaped pattern on the surface in advance, and pouring polyurethane into the casting mold by using a casting machine after the casting mold and the polyurethane conveying roller mold core are assembled, so that the grid-shaped pattern is generated on the surface of the polyurethane conveying roller during glue injection molding, and the friction force during conveying of the polyurethane conveying roller is improved.

In order to realize the technical scheme, the invention provides 1. a production method of a polyurethane conveying roller with a grid on the surface, which is characterized by comprising the following manufacturing steps:

the method comprises the following steps: preparing a casting mold, preparing the casting mold of a polyurethane conveying roller according to the size specification of the polyurethane conveying roller, and then preparing a polyurethane conveying roller mold core matched with the casting mold, wherein the surface of the polyurethane conveying roller mold core is provided with latticed patterns; and then, fixedly installing the polyurethane conveying roller mold core in a mold cylinder of a casting mold, wherein a gap is reserved between the polyurethane conveying roller mold core and the inner wall of the mold cylinder.

Step two: injecting glue for molding, namely vertically placing the molding dies of the plurality of polyurethane conveying rollers manufactured in the step one on a turnover appliance, conveying the polyurethane into a gap between a polyurethane conveying roller mold core and a mold cylinder by a polyurethane casting machine, and injecting glue for molding, wherein the surface of the molded polyurethane conveying roller is provided with latticed patterns;

step three: drying and vulcanizing, namely transferring the molded polyurethane conveying roller into a drying and vulcanizing chamber for final molding through the turnover appliance in the step two, wherein the drying time is 30-60 min;

step four: and (4) disassembling the polyurethane conveying roller from the casting mold, carrying out the edge cutting process on the finished polyurethane conveying roller, and then packaging and storing the polyurethane conveying roller.

The further improvement lies in that: in the first step, the patterns on the surface of the polyurethane conveying roller mold core are manufactured according to the actual requirements of customers.

The further improvement lies in that: in the second step, the shaft core of the polyurethane conveying roller is vertically installed in the forming mold of the polyurethane conveying roller, a fixing seat for fixing the shaft core is arranged at the bottom of the forming mold of the polyurethane conveying roller, and a sealing barrel cover is arranged at the upper part of the forming mold of the polyurethane conveying roller.

The further improvement lies in that: in the first step, the thickness of the rubber coated on the inner wall of the die cylinder of the forming die of the polyurethane conveying roller is 2-10 mm.

The further improvement lies in that: and in the second step, before the shaft core of the polyurethane conveying roller is installed, the surface of the shaft core is polished in advance.

The further improvement lies in that: in the second step, before injecting the polyurethane glue, the forming mold of the polyurethane conveying roller is preheated.

The further improvement lies in that: and in the fourth step, the unloaded polyurethane conveying roller forming die is cleaned by using a release agent, and after the polyurethane conveying roller forming die is cleaned, the shaft core of the polyurethane conveying roller is continuously assembled, and subsequent glue injection forming is performed.

The further improvement lies in that: before assembling the shaft core of the polyurethane conveying roller, a worker coats glue on the surface of the shaft core of the polyurethane conveying roller so that the polyurethane and the shaft core are tightly attached together.

The invention has the beneficial effects that: the method comprises the steps of manufacturing a casting mold and a polyurethane conveying roller mold core with latticed patterns on the surface in advance, and casting polyurethane into the casting mold by using a casting machine after the casting mold and the polyurethane conveying roller mold core are assembled, so that the latticed patterns are generated on the surface of the polyurethane conveying roller during glue injection molding, and the friction force during conveying of the polyurethane conveying roller is improved; and by using different polyurethane conveying roller mold cores, surface patterns with different specifications can be designed, and the process of coating rubber on the inner wall of the mold cylinder of the forming mold of the polyurethane conveying roller is very simple, the manufacturing cost is low, and the invention has the advantages of simple process, low production cost and wide application range.

Drawings

Figure 1 is a schematic view of an epicyclic appliance of the invention.

Fig. 2 is a schematic view of a molding die of the polyurethane conveying roller of the present invention.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

The embodiment provides a production method of a polyurethane conveying roller with a grid on the surface, which comprises the following manufacturing steps:

the method comprises the following steps: preparing a casting mold, preparing the casting mold of a polyurethane conveying roller according to the size specification of the polyurethane conveying roller, and then preparing a polyurethane conveying roller mold core matched with the casting mold, wherein the surface of the polyurethane conveying roller mold core is provided with latticed patterns; and then, fixedly installing the polyurethane conveying roller mold core in a mold cylinder of a casting mold, wherein a gap is reserved between the polyurethane conveying roller mold core and the inner wall of the mold cylinder.

Step two: injecting glue for molding, namely vertically placing the molding dies of the polyurethane conveying rollers manufactured in the step one on a turnover appliance, conveying the polyurethane into a gap between a mold core and a mold cylinder of the polyurethane conveying roller by a polyurethane casting machine, and injecting glue for molding, wherein the surface of the molded polyurethane conveying roller is provided with latticed patterns, and the temperature of the polyurethane during casting molding is kept at about 100 ℃;

step three: drying and vulcanizing, namely transferring the molded polyurethane conveying roller into a drying and vulcanizing chamber for final molding through the turnover appliance in the step two, wherein the drying time is 30-60 min;

step four: and (4) disassembling the polyurethane conveying roller from the casting mold, carrying out the edge cutting process on the finished polyurethane conveying roller, and then packaging and storing the polyurethane conveying roller.

In the first step, the patterns on the surface of the polyurethane conveying roller mold core are manufactured according to the actual requirements of customers.

In the second step, the shaft core of the polyurethane conveying roller is vertically installed in the forming mold of the polyurethane conveying roller, a fixing seat 5 for fixing the shaft core is arranged at the bottom of the forming mold of the polyurethane conveying roller, and a sealing barrel cover is arranged at the upper part of the forming mold of the polyurethane conveying roller.

In the first step, the thickness of the rubber coated on the inner wall of the die cylinder of the forming die of the polyurethane conveying roller is 2-10 mm.

In the second step, before the shaft core of the polyurethane conveying roller is installed, the surface of the shaft core is polished in advance to improve the adhesive force of the surface of the polyurethane conveying roller.

In the second step, before injecting the polyurethane glue, the forming mold of the polyurethane conveying roller is preheated.

And in the fourth step, the unloaded polyurethane conveying roller forming die is cleaned by using a release agent, and after the polyurethane conveying roller forming die is cleaned, the shaft core of the polyurethane conveying roller is continuously assembled, and subsequent glue injection forming is performed.

Before assembling the shaft core of the polyurethane conveying roller, a worker coats glue on the surface of the shaft core of the polyurethane conveying roller so that the polyurethane and the shaft core are tightly attached together.

The method comprises the steps of manufacturing a casting mold and a polyurethane conveying roller mold core with latticed patterns on the surface in advance, and casting polyurethane into the casting mold by using a casting machine after the casting mold and the polyurethane conveying roller mold core are assembled, so that the latticed patterns are generated on the surface of the polyurethane conveying roller during glue injection molding, and the friction force during conveying of the polyurethane conveying roller is improved; and by using different polyurethane conveying roller mold cores, surface patterns with different specifications can be designed, and the process of coating rubber on the inner wall of the mold cylinder of the forming mold of the polyurethane conveying roller is very simple, the manufacturing cost is low, and the invention has the advantages of simple process, low production cost and wide application range.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.