CN110553711A - Code disc support and manufacturing method thereof - Google Patents

Abstract

The invention discloses a code wheel support and a manufacturing method thereof, wherein the code wheel support comprises a main body and a connecting part embedded in the outer side wall of the main body, and the middle part of the main body is provided with a central hole penetrating through the main body; the main part adopts plastic materials to make, connecting portion adopts metal material to make. The main body of the code disc support is made of plastic materials, and in the process of bonding the code disc support with the plastic disc, the affinity with the disc is increased, the adhesion degree of the code disc support and the disc is improved, and the service life of the code disc is prolonged.

Description

code disc support and manufacturing method thereof

Technical Field

The invention relates to the technical field of encoders, in particular to a code disc support and a manufacturing method thereof.

Background

Most of traditional code disc supports are made of aluminum materials and are formed through a machining process, and the code disc supports and film discs are bonded and solidified through UV (ultraviolet) glue to obtain code discs. However, the aluminum material has low affinity with the plastic material of the disk, and the bonding strength is low under the condition of limited contact surface, thereby affecting the service life of the code disk.

disclosure of Invention

The invention aims to provide a code wheel support and a manufacturing method thereof, and aims to solve the problems that the affinity between an aluminum material and a plastic material of a disk is not high, the bonding strength is not high under the condition that the contact surface is limited, and the service life of a code wheel is influenced.

according to a first aspect, the code wheel holder comprises a main body and a connecting part embedded in the outer side wall of the main body, wherein the middle part of the main body is provided with a central hole penetrating through the main body;

The main part adopts plastic materials to make, connecting portion adopts metal material to make.

specifically, the upper surface of the main body is provided with an adhering part for adhering a disk.

Specifically, the bonding part is an annular glue guide groove arranged on the upper surface of the main body and surrounding the central hole.

Specifically, the upper surface of the main body is provided with at least two positioning portions.

Specifically, the positioning portions are positioning pillars uniformly distributed on the outer circumferential edge of the upper surface of the main body.

Specifically, the connecting portion is a metal nut, and the metal nut is installed along a radial direction of the supporting portion.

In a second aspect, according to an embodiment of the present invention, there is provided a method for manufacturing a palette tray, including:

Placing the connecting part made of metal material into a corresponding area of a mould matched with the shape of the code wheel support in the embodiment;

Plasticizing plastic particles, and injecting the plastic particles into the mold;

Injecting pressure into the mold, and continuously pressurizing at a certain pressure;

Cooling the solution in the mold;

And demolding the cooled plastic adult in the mold to obtain the stacking tray.

Specifically, the continuous pressure feeding pressure is 40% to 60% of the initial injection pressure.

Specifically, the cooling time of the solution accounts for 70% -80% of the manufacturing time of the code disc holder.

Specifically, the demolding of the cooled plastic body in the mold to obtain the code wheel holder comprises the following steps:

And ejecting the plastic adult in the mold by using an ejector rod to complete demolding, so as to obtain the pallet.

The embodiment of the invention provides a code disc support and a manufacturing method thereof, wherein a main body of the code disc support is made of a plastic material, in the process of bonding with a plastic disc, the affinity with the disc is increased, the adhesion degree of the code disc support and the disc is improved, and the service life of the code disc is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

fig. 1 is a structural diagram of a code disc tray according to an embodiment of the present invention;

FIG. 2 is a structural diagram of a disk;

Fig. 3 is a flowchart of a manufacturing method of a code tray according to an embodiment of the present invention.

the structure comprises a main body 1, a connecting part 2, a positioning part 3, a glue guide groove 4, a bulge 5 and a positioning hole 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a first aspect, referring to fig. 1, according to an embodiment of the present invention, there is provided a code wheel holder, comprising a main body and a connecting part 2 embedded in an outer side wall of the main body, wherein a central hole penetrating through the main body is arranged in the middle of the main body; the main body is made of plastic materials, and the connecting part 2 is made of metal materials.

in the above embodiment, the connecting portion 2 is made of metal material to enhance the connecting rigidity between the code wheel holder and the spindle, so that the connection between the code wheel holder and the spindle is more stable, and therefore, the connecting rigidity of the metal connecting portion 2 can be ensured to be the same as that of the aluminum code wheel holder in the prior art.

The embodiment of the invention provides a code disc support and a manufacturing method thereof, wherein a main body of the code disc support is made of a plastic material, in the process of bonding with a plastic disc, the affinity with the disc is increased, the adhesion degree of the code disc support and the disc is improved, and the service life of the code disc is prolonged.

Specifically, the upper surface of the main body is provided with an adhesive portion for adhering the disk. Wherein, the main part bonding portion is that the upper surface of main part and surrounding the main part centre bore are equipped with annular and lead gluey groove 4. Referring to fig. 2, the disc is provided with a protrusion 5 matched with the glue guiding groove 4, when the disc is bonded, the glue guiding groove 4 can be used for injecting glue, the protrusion 5 is inserted into the glue guiding groove 4 to realize bonding of the disc and the code wheel support, and the annular glue guiding groove 4 enables the glue to be distributed uniformly so as to ensure that the bonding of the disc and the code wheel support is more stable.

Specifically, the upper surface of the main body is provided with at least two positioning portions 3. The concentricity of the disk and the disk stacking tray can be ensured by the positioning part 3, adjustment is not needed, and bonding is convenient.

Specifically, the main body positioning portion 3 is positioning pillars, and the main body positioning pillars are uniformly distributed on the outer circumferential edge of the upper surface of the main body. Referring to fig. 2, the disk is provided with a positioning hole 6 adapted to the positioning column, and the disk tray can be concentric by inserting the positioning column into the positioning hole 6.

Specifically, the connection part 2 is a metal nut, and the main body metal nut is installed in a radial direction of the main body support part. When the code disc support is connected with the main shaft, the code disc support can be connected with the main shaft by utilizing the matching of the nut and the bolt.

In a second aspect, referring to fig. 3, according to an embodiment of the present invention, there is provided a method for manufacturing a palette tray, including:

Step 31: the metal connecting part 2 is placed in the area corresponding to the mold matched with the shape of the code wheel support in the embodiment. Specifically, the connection part 2 is a metal nut.

Step 32: and plasticizing the plastic particles, and injecting the plastic particles into the main body mold. Wherein, the plastic particles can be polyphenyl ether plastic particles, the polyphenyl ether plastic particles are plasticized, namely, the polyphenyl ether plastic particles are changed from a solid state to a liquid state, the melting temperature of the polyphenyl ether is 240 ℃, the mould is closed, and the injection molding is started until the cavity of the mould is filled to about 95 percent.

Step 33: and injecting pressure into the main body mould, and continuously pressurizing at a certain pressure. The melt is compacted by pressure to increase the density of the plastic to compensate for shrinkage of the plastic. The pressure maintaining pressure is 40% -60% of the initial injection pressure, the screw back pressure is 3-10 MPA, and the medium screw rotating speed is selected.

Step 34: and cooling the solution in the main body mould. The cooling time will directly affect the molding cycle length and the yield of the plastic products. The heat entering the mould from the melt is dissipated in two substantial portions, one portion being 5% transferred to the atmosphere by radiation and convection, the remaining 95% being transferred from the melt to the mould. The plastic product is in the mould, and due to the action of the cooling water pipe, heat is transferred to the cooling water pipe from the plastic in the mould cavity through the mould frame through heat conduction, and then is taken away by cooling liquid through heat convection. A small amount of heat which is not taken away by the cooling water is continuously conducted in the mold and is scattered in the air after contacting the outside.

Step 35: and demolding the cooled plastic adult in the mold to obtain the stacking tray. Specifically, the plastic adult in the mold is ejected out by utilizing an ejector rod, demolding is completed, and the tray pallet is obtained. The ejector rods are uniformly arranged as much as possible, and the positions of the ejector rods are selected to be the places with the largest demolding resistance and the largest strength and rigidity of the plastic part so as to prevent the plastic part from deforming and damaging.

according to the manufacturing method of the code disc support, batch production is carried out by using the die, compared with the existing aluminum product processing method, the condition that batch surface roughness is inconsistent due to different processing cutters or feeding amounts is avoided, the quality of the code disc support is improved, compared with the aluminum product, the plastic cost is lower, and the production cost is reduced.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (10)

1. The code wheel support is characterized by comprising a main body and a connecting part embedded in the outer side wall of the main body, wherein the middle part of the main body is provided with a central hole penetrating through the main body;

The main part adopts plastic materials to make, connecting portion adopts metal material to make.

2. The tray of claim 1, wherein an upper surface of said main body is provided with an adhesive portion for adhering a disk.

3. The tray of claim 2 wherein said adhesive portion is an annular bead of adhesive on the upper surface of the body and surrounding said central opening.

4. The tray of claim 1, wherein the upper surface of the main body is provided with at least two positioning portions.

5. The pallet tray according to claim 4, wherein the positioning portions are positioning posts, and the positioning posts are uniformly distributed on the outer circumferential edge of the upper surface of the main body.

6. The tray of claim 1, wherein said attachment portion is a metal nut, and said metal nut is mounted in a radial direction of said support portion.

7. A manufacturing method of a code disc support is characterized by comprising the following steps:

Placing a connecting part made of metal into a corresponding area of a mold matched with the shape of the code wheel holder in any one of claims 1-6;

plasticizing plastic particles, and injecting the plastic particles into the mold;

Injecting pressure into the mold, and continuously pressurizing at a certain pressure;

Cooling the solution in the mold;

And demolding the cooled plastic adult in the mold to obtain the stacking tray.

8. The method of claim 7, wherein the continuous pressure supply is from 40% to 60% of the initial injection pressure.

9. The method of claim 7, wherein the cooling time of the solution is 70-80% of the code wheel manufacturing time.

10. the method of claim 7, wherein the demolding the cooled plastic body in the mold to obtain the code wheel holder comprises:

and ejecting the plastic adult in the mold by using an ejector rod to complete demolding, so as to obtain the pallet.