A method of producing a CT scanner plug

Abstract

The application provides a production method of a CT scanner plug, comprising the following steps: step 1: installing a sealing ring into a groove of a positioning disc; assembling a positioning shaft and a pin together; combining the positioning shaft and the positioning disc together; placing a shell into an annular groove of the positioning disc and fastening by means of an inner hexagonal screw; inserting a tail sleeve accessory into the shell, and welding a wire core of the tail sleeve accessory with the pin; inserting a front end of a shielding sleeve into a gap between the positioning shaft and the positioning disc, and completing assembly of the plug accessory and a mold; step 2: pouring epoxy resin into the shell, then placing the plug accessory together with the mold into a vacuum barrel, and performing vacuumizing; step 3: placing the plug accessory and the mold into an oven for curing, removing the mold after the epoxy resin is cured, and obtaining a CT scanner plug product. The application can accurately position each accessory of the CT scanner plug, ensure smooth pouring of the epoxy resin, and ensure that there is no air bubble in the poured epoxy resin, thereby ensuring product quality.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of CT scanner, in particular to a production method of CT scanner plug. BACKGROUND

[0002] CT machine is a kind of equipment which scans the cross section of the material penetrated by X-ray and displays the structure of the layer by computer technology. It is widely used in various industries. The existing CT machine detects products by X-ray. X-ray is a particle flow generated by the transition of electrons in atoms between two energy levels with a large difference. It is an electromagnetic wave with a wavelength between ultraviolet and gamma ray. Its wavelength is very short, between 0.01-100 angstrom, and has high penetration power, which can penetrate many materials that are not transparent to visible light.

[0003] In hospitals, CT machines are often used for CT examination. CT machines are in working state for a long time. The plug of the CT machine needs to be soaked in oil, high voltage and work for a long time, with limited service life, belonging to consumables. The plug of the CT machine mainly includes a shell, a shielding sleeve, a pin and a tail accessory. In order to adapt to its working environment, epoxy resin needs to be injected between the above-mentioned components except for necessary connection. This requires the mold to accurately position the shell, the shielding sleeve and the pin. In addition, the injected epoxy resin should not cover the pin, which affects the use of the pin. The positioning between the shielding sleeve, the pin and other components and the injection of the epoxy resin are the difficulties in producing the plug of the CT scanner, which directly affects the qualification rate of the product and needs to be improved. SUMMARY

[0004] The present application provides a production method of CT scanner plug, which can accurately position the positions of various components of the CT scanner plug, ensure the smooth injection of the epoxy resin, and ensure the product quality without bubbles in the injected epoxy resin.

[0005] The technical scheme adopted by the present application is as follows: a production method of CT scanner plug, comprising the following steps:

[0006] Step 1: install the sealing ring into the groove of the positioning disc; assemble the positioning shaft with the three pins through three plug screws; then combine the positioning shaft with the positioning disc through an internal hexagonal screw;

[0007] Put the shell in the annular groove of the positioning disc and fasten it by an internal hexagonal screw;

[0008] Insert the tail sleeve accessory into the shell, and then weld the three cores on the tail sleeve accessory with the three pins respectively;

[0009] Put on the shielding sleeve, insert the front end of the shielding sleeve into the gap between the positioning shaft and the positioning disc, and complete the assembly of the plug components and the mold.

[0010] Step 2: Pour epoxy resin into the shell, then put the plug assembly together with the mold into the vacuum barrel, and vacuumize;

[0011] Step 3: Put the plug assembly and the mold into the oven for curing, take out the plug assembly and the mold after the epoxy resin is cured, and remove the mold after cooling to room temperature to obtain the CT scanner plug finished product.

[0012] Further, in step 2, the epoxy resin is poured into the shell for 4-5 times, and after each pouring, the plug assembly and the mold are put into the vacuum barrel, vacuumized, and kept for 3-5 minutes.

[0013] Further, in step 2, the plug assembly and the mold are kept horizontal in the vacuum barrel.

[0014] Further, in step 3, the curing temperature is 80-150℃, and the curing time is 2-4 hours.

[0015] Further, in step 3, the curing process is: 80℃ for 1 hour, then 100℃ for 1 hour, and then 150℃ for 1 hour.

[0016] Further, the plug assembly includes a tail accessory, a pin, a shielding sleeve and a shell; and the mold includes a positioning disc, a sealing ring, a positioning shaft, an internal hexagonal screw and a plug screw.

[0017] Compared with the prior art, the present application has the beneficial effects that: the present application adopts a mold specially designed for the plug assembly, reasonably fixes the pin, the shielding sleeve and the shell on the mold, so that each plug assembly does not displace in the subsequent pouring and curing stage, and the product quality of the CT scanner plug is ensured. The present application pours the epoxy resin into the shell for multiple times, vacuumizes after each pouring, and ensures that there is no bubble in the epoxy resin; during the vacuumizing stage, the pouring surface is kept horizontal to ensure the pouring quality. The present application gradually increases the curing temperature in the curing stage, and cures the epoxy resin in three stages to ensure the curing quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a flow chart of the embodiment of the present application;

[0019] Figure 2 is an assembly schematic view of part of the plug assembly and the mold of the embodiment of the present application;

[0020] Figure 3 is an assembly schematic view of the plug assembly and the mold of the embodiment of the present application;

[0021] Figure 4 is a structure schematic view of the vacuumizing of the embodiment of the present application.

[0022] In the figure: 1-positioning disc, 2-sealing ring, 3-positioning shaft, 4-internal hexagonal screw, 5-plug screw, 6-tail accessory, 7-needle, 8-shielding sleeve, 9-outer shell, 10-vacuum barrel, 11-level. DETAILED DESCRIPTION

[0023] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0024] The mold used in the present method mainly includes a positioning disc 1, a positioning shaft 3 and a vacuum barrel 10. The positioning disc 1 is provided with an annular groove and a central groove. The annular groove is provided with a threaded hole for fixing the outer shell 9. The inner side wall of the central groove is provided with a groove for placing the sealing ring 2. The positioning shaft 3 is fixed in the central groove by the internal hexagonal screw 4. The positioning shaft 3 and the inner side wall of the central groove leave a gap for the front end of the shielding sleeve 8 to be inserted. The positioning shaft 3 is provided with three threaded holes, and the needle 7 is connected by the plug screw 5. The vacuum barrel 10 is provided with a level 11.

[0025] The embodiment of the present application provides a production method of a CT scanner plug, as shown in the figure, which comprises the following steps: Figure 1

[0026] Step 1: Install the sealing ring 2 into the groove of the positioning disc 1; assemble the positioning shaft 3 with the three needles 7 by the three plug screws 5; then combine the positioning shaft 3 with the positioning disc 1 by the internal hexagonal screw 4, and ensure that the positioning shaft 3 and the positioning disc 1 are tightly fitted without gaps, as shown in the figure; Figure 2

[0027] Put the outer shell 9 in the annular groove of the positioning disc 1 and fasten it by the internal hexagonal screw;

[0028] Put the tail sleeve accessory 6 into the outer shell 9, and then weld the three cores of the tail sleeve accessory 6 with the three needles 7 respectively;

[0029] Put on the shielding sleeve 8, and insert the front end of the shielding sleeve 8 into the gap between the positioning shaft 3 and the positioning disc 1, complete the assembly of the plug accessory and the mold, as shown in the figure. The plug accessory includes the tail accessory 6, the needle 7, the shielding sleeve 8 and the outer shell 9; the mold includes the positioning disc 1, the sealing ring 2, the positioning shaft 3, the internal hexagonal screw 4 and the plug screw 5. Figure 3

[0030] Step 2: Pour the epoxy resin into the outer shell 9 for 4-5 times, after each pouring, put the plug accessory and the mold into the vacuum barrel 10, and vacuumize and keep for 3-5 minutes, as shown in the figure. The plug accessory and the mold need to be kept horizontal in the vacuum barrel 10. Figure 4

[0031] ​​​​Step 3: Put the plug fitting and the mold into the oven for curing, the curing process is: 80℃ for 1 hour, then 100℃ for 1 hour, and then 150℃ for 1 hour. After the epoxy resin is cured, the plug fitting and the mold are taken out, the mold is removed after cooling to room temperature, and the CT scan machine plug finished product is obtained.

[0032] The above describes the present application in detail through examples, but the content is only exemplary embodiments of the present application and cannot be considered to limit the implementation scope of the present application. The protection scope of the present application is defined by the claims. Any similar technical solution that utilizes the technical solutions described in the present application or is inspired by the technical solutions of the present application within the essence and protection scope of the present application to achieve the above technical effects, or any equivalent changes and improvements to the application scope, shall still belong to the patent coverage protection scope of the present application.

Claims

1. A method for producing a CT scanner plug, characterized in that: The following steps are involved: Step 1: Install the sealing ring into the groove of the positioning plate; assemble the positioning shaft with three screws and three pins; then assemble the positioning shaft and the positioning plate with the hexagon socket screws; Place the housing into the annular groove of the positioning plate and tighten it with the hexagon socket screws; Insert the tail boot accessory into the housing, and then solder the three wire cores on the tail boot accessory to the three pins respectively; Buckle up the shielding sleeve, insert the front end of the shielding sleeve into the gap between the positioning shaft and the positioning plate, and complete the assembly of the plug accessory and the mold; Step 2: Pour epoxy resin into the shell, then place the plug accessories and the mold into a vacuum barrel and evacuate; Step 3: Place the plug accessories and mold in an oven for curing. After the epoxy resin is cured, take out the plug accessories and mold. After cooling to room temperature, remove the mold to obtain the finished CT scanner plug.

2. The method for producing a CT scanner plug according to claim 1, wherein: In step 2, epoxy resin is poured into the shell in 4-5 times. After each pouring, the plug fittings and the mold are placed in a vacuum barrel, vacuumed, and maintained for 3-5 minutes.

3. The method for producing a CT scanner plug according to claim 1, wherein: In step 2, the plug fitting and the mold are kept level in the vacuum tank.

4. The method for producing a CT scanner plug according to claim 1, wherein: In step 3, the curing temperature is 80° C.-150° C., and the curing time is 2-4 hours.

5. The method for producing a CT scanner plug according to claim 4, wherein: In step 3, the curing process is: curing at 80° C. for 1 hour, then curing at 100° C. for 1 hour, and then curing at 150° C. for 1 hour.

6. The method for producing a CT scanner plug according to claim 1, wherein: Plug accessories include tail accessories, pins, shielding sleeves and shells; molds include positioning plates, sealing rings, positioning shafts, hexagon socket screws and plug screws.

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