CN113134985A

CN113134985A - Method for repairing plastic bracket

Info

Publication number: CN113134985A
Application number: CN202010078342.0A
Authority: CN
Inventors: 王常亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2021-07-20

Abstract

The invention discloses a method for repairing a plastic bracket, which comprises the following steps: (1) shaping the processing area of the bracket main body; (2) fixing the main body of the bracket and a repairing mold together, melting the plastic, injecting the melted plastic into a mold cavity, cooling, molding and demolding. The method for repairing the damaged plastic bracket of the plug further comprises the steps of detaching the damaged plug from the plastic bracket before the step (1) and shaping the blades of the deformed plug before the step (2). The method for repairing the plastic bracket can improve the firmness degree of the plastic bracket, prolong the service life of the repaired plastic bracket and enable the damaged plastic bracket to be recycled through repairing.

Description

Method for repairing plastic bracket

The technical field is as follows:

the invention belongs to the technical field of electronic device repair, and particularly relates to a method for repairing a plastic bracket.

Background

Electronic devices such as automobile voltage regulators are mounted and assembled by using plastic supports, and due to various reasons, the plastic supports, particularly plastics of plug parts, are easy to crack, wear, break, crack and the like after being collided, and the inserting pieces of the plugs are also easy to deform.

In order to reduce waste, some existing enterprises actively develop waste resource recycling and recycle damaged electronic devices. If the bracket plug is damaged, the existing repairing method comprises the following steps: (1) the damaged plug is detached from the plastic bracket, the damaged plug is discarded, and the lower bracket main body is reserved; (2) manufacturing a new plug sleeve; (3) the new plug sleeve is glued to the main body of the bracket. If the plug is not damaged but other parts of the bracket are damaged, the prior method is as follows: (1) removing the useful chip or circuit board from the damaged electronic device, discarding the entire damaged support, and (2) replacing the damaged support with a new support to mount the useful chip or circuit board. The bracket repaired by the repairing method has the advantages that the firmness of the connection between the bracket main body and the plug is not high, so that the bracket is frequently cracked and cracked again after being used for less than one year; the method of reusing the chip or the circuit board only utilizes the useful chip or the useful circuit board in the original damaged part, and even if the plastic bracket is slightly damaged at other parts except the plug part, the whole plastic bracket is abandoned and cannot be reused.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a method for repairing a plastic bracket. The technical scheme adopted by the invention is as follows: a method of repairing a plastic stent, the method comprising the steps of:

(1) carry out plastic processing to the processing region of support main part, carry out plastic processing including to the processing region of support main part: the plastic of the processing area of the bracket main body is milled, and the thickness of the plastic of the processing area of the bracket main body after milling is smaller than or equal to that of the plastic of the processing area of the bracket main body before milling through milling, so that the overall attractiveness and firmness of the plastic bracket repaired by an injection molding mode are improved. Milling treatment cannot be excessive, and excessive treatment to thin the plastic layer can damage the embedded metal insert or reduce the plastic strength of the treatment area of the support body, so that the plastic support is not easy to repair by using an injection molding process.

(2) Fixing the main body of the bracket and a repairing mold together, melting the plastic, injecting the melted plastic into a mold cavity, cooling, molding and demolding. Namely, the plastic bracket is repaired by an injection molding process.

For the plastic bracket with the damaged plug, before milling the plastic of the processing area of the bracket main body, a step of detaching the damaged plug from the plastic bracket is also carried out, and a step of shaping the insert of the deformed plug is also carried out before fixing the bracket main body and the repairing mold together.

Further, the step of shaping the treatment region of the stent body further comprises: more than 1 groove is processed in the processing area of the bracket main body, and the depth of the groove is more than or equal to 0 mm. The groove is processed in the processing area of the bracket main body, and the purpose is to improve the integral firmness degree of the plastic bracket repaired by using an injection molding mode. The number of the grooves is not too large, so that the plastic strength of the processing area of the bracket main body is reduced, and the plastic bracket is not easy to repair by using an injection molding process.

Further, the step of shaping the treatment region of the stent body further comprises: more than 1 slotted hole is processed in the processing area of the bracket main body, and the depth of the slotted hole is more than or equal to 0 mm. More than 1 slotted hole is processed in the processing area of the bracket main body, so that the integral firmness degree of the plastic bracket repaired by an injection molding mode is improved. The number of the slotted holes is not too large, and too much plastic strength of the processing area of the bracket main body is reduced, which is not beneficial to applying an injection molding process to repair the plastic bracket.

Further, when the metal insert is embedded in the plastic layer of the processing area of the bracket body, the depth of the groove is the thickness from the surface of the bracket body to the plastic layer of the insert in the bracket body.

Further, when the metal insert is embedded in the plastic layer of the processing area of the bracket main body, the depth of the slotted hole is the thickness from the surface of the bracket main body to the plastic layer of the insert in the bracket main body.

Further, when the plastic layer of the treated area of the stent body can be penetrated, the depth of the groove refers to the thickness of the plastic layer of the whole treated area, see fig. 4 and 5, and the groove 7 is processed to penetrate the plastic layer of the whole treated area 6. In this case, the plastic bracket is repaired by the injection molding process, the groove 7 is filled with the injection-molded plastic, the plastic filling the groove 7 is tightly fixed in the bracket main body on one hand, and is tightly connected with the rest of the plastic injected in the processing area of the bracket main body on the other hand, at this time, the bracket main body and the plastic repaired by the injection molding process are combined into a whole, and the overall firmness degree of the plastic bracket reaches the maximum.

Further, when the plastic layer of the treated area of the stent body can be penetrated, the depth of the slot hole refers to the thickness of the plastic layer of the whole treated area, see fig. 2 and 3, and the processed slot hole 5 penetrates the plastic layer of the whole treated area 6. In this case, the plastic bracket is repaired by the injection molding process, the slot 5 is filled with the injection molded plastic, the plastic filling the slot 5 is tightly fixed in the bracket main body on one hand, and is tightly connected with the rest of the plastic injected in the processing area of the bracket main body on the other hand, at this time, the bracket main body and the plastic repaired by the injection molding process are combined into a whole, and the integral firmness degree of the plastic bracket reaches the maximum.

In addition, in order to improve the repairing effect, before the injection molding process is started, namely after the step of shaping the deformed plug insert is completed, the step of cleaning the shaped bracket main body or plug insert by using a cleaning agent and the step of performing anti-oxidation and anti-corrosion treatment on the cleaned plug insert is also performed.

Further, after the injection molding process is completed and demolded, a tool is used to process the stent flash.

Further, the shaped stent main body and a repairing mold are fixed together, and when an injection molding process is applied for injection molding, the melting point of the plastic used for injection molding is equal to or less than that of the plastic used for the stent main body.

Further, more than 1 groove is processed in the processing area of the bracket main body, and the groove is parallel to the outer edge line of the processing area of the bracket main body, so that the firmness between the bracket main body and the injection-molded plastic repaired by the injection molding process is improved.

Compared with the prior art, the invention has the beneficial effects that: by milling the plastic in the processing area of the bracket main body and processing more than one groove or more than one slotted hole in the processing area of the bracket main body, the overall firmness of the plastic bracket repaired by adopting an injection molding process is greatly improved, the service life of the repaired plastic bracket is prolonged, and the plastic bracket with damages on other parts except the plug part can be repaired and reused by the repairing method disclosed by the invention.

Drawings

FIG. 1 is a schematic diagram of a voltage regulator with a broken plug

FIGS. 2 and 3 are schematic views of the conditioner after the treatment area is shaped and 3 slots are formed

FIGS. 4 and 5 are schematic views of the conditioner after shaping the treatment area and machining 1 groove

FIG. 6 is a schematic view of the conditioner after the repair is completed

Wherein:

1. a plug;

2. cutting an intersection line;

3. a stent body;

4. an insert of the plug;

5. a slot;

6. a treatment region of the stent body;

7. a groove;

8. a treatment area part of the repaired stent main body;

9. an outer edge line of the treatment region of the stent main body.

Detailed Description

To facilitate an understanding of the invention, some terms need to be interpreted:

the plastic bracket provided by the invention consists of a bracket main body and a plug, and the whole plastic bracket is formed by injection molding at one time through an injection molding process. The bracket main body is connected with the plug, which can also be expressed as a plug with a three-dimensional structure, and the plug is intersected with the upper surface of the bracket main body as a section plane, and the intersection line is a section line, as shown in fig. 1, wherein the identifier 2 is the section line. The damaged plastic support of restoration plug at first needs to be dismantled from the plastic support, and after the damaged plug was dismantled, the section that the line of intersection enclosed just appeared. In practice, in order to achieve better technical effects of the present invention, it is necessary to perform a region expanding process by expanding all the intersecting lines of the intersecting surfaces by 0mm or more to the periphery, so as to form a region having an area greater than or equal to the area of the intersecting surfaces, and the region having the area greater than or equal to the area of the intersecting surfaces is a processed region of the stent body according to the present invention.

In the case where the plug portion is not broken but the other portion of the holder is broken, the processing region of the holder main body refers to a region including the broken portion on the surface of the plastic holder. In practice, the number of models of the repair mold is several, and the repair mold for repairing the damaged plastic supports in different damaged area ranges is impossible to prepare for each damaged area. Therefore, in the case where the plug portion is not damaged but other portions of the rack are damaged, the processing area of the rack main body is often a region where the model die can be repaired, the region including the damaged portion and including just the whole damaged portion, and the region is also the processing area of the rack main body according to the present invention.

The first embodiment of the present invention, a plastic bracket for repairing a damaged plug, is shown in fig. 1, 4, 5 and 6, and comprises the following steps:

(1) the damaged plug 1 is removed from the plastic holder using a router.

(2) The plastic of the treatment area 6 of the stent body is milled mechanically, the plastic of the treatment area 6 of the stent body is milled, the plastic of the upper side and the lower side of the plastic layer of the treatment area 6 of the stent body is milled, the thickness of the treatment area 6 of the stent body is changed from 5mm to 2mm through milling, 1 groove 7 is machined in the treatment area 6 of the stent body by using an engraving and milling machine, the depth of the groove 7 is 2mm (the thickness of the plastic layer after milling the treatment area 6 of the stent body), the length of the groove 7 is 5mm, the width of the groove 7 is 2mm, and the groove 7 is parallel to the outer edge line 9 of the treatment area of the stent body, as shown in fig. 4.

(3) Shaping the insert 4 of the deformed plug by using a punch, and then respectively cleaning the shaped bracket main body 3 and the insert 4 of the plug by using a cleaning agent to remove impurities such as plastic scraps generated in the milling process.

(4) Fixing the shaped bracket main body 3 and a plug mould for injection molding together, applying an injection molding mode to injection mold the bracket plug, wherein the melting point of injection molding plastic used in injection molding is 200 ℃, and the melting point is lower than that of the bracket plastic, cooling, demolding, and then using an art designer knife to process the burrs of the bracket to finish the repair of the damaged plastic bracket of the plug.

Fig. 6 is a schematic view of the regulator after the repair is completed, and it can be seen that the thickness of the plastic in the treatment region 8 of the stent body after the repair is thicker than before the repair.

The second embodiment of the present invention is directed to a method for repairing a damaged plug, but a damaged other part of a holder, the method including the steps of:

(1) shaping the damaged part of the bracket main body 3, processing the plastic in the damaged part area of the plastic bracket by using an engraving machine, wherein the area of the processing area 6 of the bracket main body meets the requirement of the size of a used repairing mould, the thickness of the processing area 6 of the bracket main body is changed from 4mm to 3mm by milling, 3 slotted holes 5 are processed in the processing area 6 of the bracket main body, the distance between the slotted holes is 2mm, and the depth of the slotted hole 5 is 3mm (the thickness of the plastic layer after milling the processing area 6 of the bracket main body).

(2) Removing plastic chips generated in the above process.

(3) Fixing the processed bracket main body 3 and the repairing mould together, repairing the damaged part by using an injection molding process, wherein the melting point of injection molding plastic used in injection molding is 180 ℃, and is lower than that of the bracket plastic, cooling, demoulding, and finishing the burrs of the bracket and repairing the uneven part on the bracket by using an art designing knife to finish repairing the plastic bracket.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and any modification, equivalent replacement or improvement made by those skilled in the art within the spirit and principle of the present invention, such as modifying the thickness of the plastic layer after milling the processing region 6 of the processing support body from a fixed value to a plurality of values within a certain range, should be included in the protection scope of the present invention.

Claims

1. The method for repairing the plastic bracket is characterized by comprising the following steps of:

(1) the method comprises the following steps of shaping the processing area of the bracket main body, wherein the shaping of the processing area of the bracket main body comprises the following steps: and milling the plastic of the processing area of the bracket main body, wherein the thickness of the plastic of the processing area of the bracket main body after milling is less than or equal to that of the plastic of the processing area of the bracket main body before milling.

(2) Fixing the main body of the bracket and a repairing mold together, melting the plastic, injecting the melted plastic into a mold cavity, cooling, molding and demolding.

2. The method for repairing a plastic stent according to claim 1, wherein: for the damaged plastic support of the plug, before the step (1), a step of detaching the damaged plug from the plastic support is also provided, and before the step (2), a step of shaping the insert of the deformed plug is also provided.

3. The method for repairing a plastic stent according to claim 1 or 2, wherein: the step (1) of shaping the processing region of the stent body further comprises: more than 1 groove is processed in the processing area of the bracket main body, and the depth of the groove is more than or equal to 0 mm.

4. The method for repairing a plastic stent according to claim 1 or 2, wherein: the step (1) of shaping the processing region of the stent body further comprises: more than 1 slotted hole is processed in the processing area of the bracket main body, and the depth of the slotted hole is more than or equal to 0 mm.

5. The method for repairing a plastic stent according to claim 3, wherein: the depth of the groove is the thickness from the surface of the bracket body to the plastic layer of the insert in the bracket body.

6. The method for repairing a plastic stent according to claim 4, wherein: the depth of the slotted hole is the thickness from the surface of the bracket main body to the plastic layer of the insert in the bracket main body.

7. The method for repairing a plastic stent according to claim 3, wherein: the depth of the recess is the thickness of the plastic layer of the treatment area.

8. The method for repairing a plastic stent according to claim 4, wherein: the depth of the slot is the thickness of the plastic layer of the treatment area.

9. The method for repairing a plastic stent according to claim 2, wherein: after the step of shaping the deformed plug insert is completed, the step of cleaning the shaped support main body or plug insert by using a cleaning agent and the step of performing oxidation-resistant and corrosion-resistant treatment on the cleaned plug insert.

10. The method for repairing a plastic stent according to claim 1 or 2, wherein: and (3) after the step (2), a step of processing the burrs of the bracket is also carried out.

11. The method for repairing a plastic stent according to claim 1 or 2, wherein: and (3) melting the plastic in the step (2) and then injecting the melted plastic into the mold cavity, wherein the melting point of the used plastic is equal to or less than that of the used plastic of the bracket body.

12. The method for repairing a plastic stent according to claim 3, wherein: the groove is parallel to the outer edge line of the processing area of the bracket main body.