Probe shell molding process

Abstract

The present invention belongs to the technical field of color ultrasound equipment, and discloses a probe shell molding process. The process includes firstly preparing a metal composite layer into a thin plate in advance, then softening and deforming the thin plate by heating the mold cavity and suctioning air, and finally, blowing and molding the thin plate by a blowing device to form a shell covering the thin plate. In the present invention, by using the metal composite layer for preparation, the electromagnetic wave energy projected onto the surface of the shell can be absorbed and reduced, and the electromagnetic radiation can be effectively prevented from harassing and harming the surrounding equipment and personnel. In addition, by first softening and deforming the thin plate, and then blowing the thin plate by a blowing device to keep the thin plate in shape, and finally, injecting plastic liquid, the plastic liquid flows into the mold cavity through the injection molding flow channel to form the probe shell, that is, the shell is formed by blow molding, which avoids the need for subsequent processing of the shell and reduces the cost of the processing technology.

Description

Technical Field

[0001] The invention belongs to the technical field of color ultrasound equipment, and more specifically, relates to a probe shell molding process. Background Art

[0002] With the advancement of modern medical technology, medical equipment has more and more functions, and there are more and more large trolley-type equipment, such as color ultrasound equipment, and the color ultrasound probe is an indispensable component of the color ultrasound equipment.

[0003] The existing preparation process of color Doppler ultrasound probe is to first separately inject two outer shell covers, then put the probe and the control module into the accommodating cavity formed by the two outer shell covers, and finally seal the two outer shell covers by bonding. However, the outer shell cover prepared by this process needs to go through subsequent processes such as bonding and scraping after injection molding, which increases the preparation cost of the process. In addition, the outer shell cover prepared by this process only has the effect of sealing the probe and the control module. When the probe is in working state, the electromagnetic radiation released by it can pass through the shell to cause harassment and damage to surrounding equipment and users. Summary of the invention

[0004] The purpose of the present invention is to provide a probe shell molding process, aiming to solve the technical problems in the prior art that the probe shell process is complicated and causes harm to the user due to lack of radiation protection.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: the probe shell molding process comprises the following steps:

[0006] Shell pre-preparation: Pre-prepare the metal composite layer into a thin plate;

[0007] Shell softening: placing the thin plate in the pre-prepared shell into a blister cavity, and softening and deforming the thin plate by heating and suctioning the cavity;

[0008] Shell molding: The thin plate is kept molded under a certain air pressure by blowing air through an air blowing device, and then a plastic liquid is injected. The plastic liquid flows into the mold cavity through the injection flow channel to form the shell covering the thin plate.

[0009] Furthermore, the metal composite layer includes a sol layer for fusing with the plastic liquid, and a metal layer disposed on the sol layer for isolating electromagnetic radiation.

[0010] Furthermore, the metal composite layer also includes a heat insulation layer disposed between the sol layer and the metal layer and used to protect the metal layer from being corroded by heat released during the fusion process of the sol layer and the plastic liquid.

[0011] Furthermore, the molding temperature of the plastic liquid is greater than the melting point temperature of the sol layer.

[0012] Furthermore, there is a gap between the mold cavity and the thin plate for the plastic liquid to be filled and molded to form the shell.

[0013] Furthermore, the shell forming step also includes the following steps:

[0014] S031, fixing the thin plate to two ends of the cavity by means of a gas fixing block;

[0015] S032, respectively arranging air blowing devices at both ends of the thin plate, each of the air blowing devices blowing air through the air setting block so that the thin plate is kept in shape under a certain air pressure;

[0016] S033, injecting the plastic liquid into the mold cavity, and the plastic liquid flows into the gap between the mold cavity and the thin plate through the injection channel to be cooled and formed.

[0017] Furthermore, the shell forming step further includes the following steps:

[0018] The air blowing device is removed, and the probe and the control panel module for controlling the operation of the probe are respectively placed into the housing;

[0019] The plastic liquid flows into the two ends of the shell through the injection flow channel on the cavity to wrap the probe and the control board module in the shell.

[0020] Furthermore, it also includes a wire inserted into one end of the shell and electrically connected to the control board module, and the shell is provided with a through hole for the wire to pass through.

[0021] Furthermore, the wire material and the housing are integrally injection molded.

[0022] Furthermore, the blowing device includes an air pipe for providing air pressure to keep the thin plate in shape, and a mounting assembly for mounting the air pipe in the mold cavity.

[0023] The beneficial effect of the probe shell molding process provided by the present invention is that: compared with the prior art, the probe shell molding process of the present invention, by using a metal composite layer for preparation, can absorb and reduce the electromagnetic wave energy projected onto the shell surface, and effectively prevent electromagnetic radiation from harassing and harming surrounding equipment and personnel. In addition, the thin plate is first softened and deformed, and then air is blown through a blowing device to keep the thin plate in shape. Finally, a plastic liquid is injected, and the plastic liquid flows into the mold cavity through an injection molding runner to form a probe shell, that is, the shell is formed by blow molding, which avoids the need for subsequent processing of the shell and reduces the cost of the processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present embodiment. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A flow chart of a probe housing molding process proposed in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of a metal composite layer proposed in an embodiment of the present invention;

[0027] Figure 3 A process flow chart of the pre-preparation of the shell according to an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of the air blowing device provided in an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the structure of the housing in the cavity according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic structural diagram of the housing connected to the wire in the cavity according to an embodiment of the present invention.

[0031] Among them, the reference numerals in the figure are:

[0032] 1-metal composite layer; 11-sol layer; 12-thermal insulation layer; 13-metal layer;

[0033] 2-cavity; 20-injection runner;

[0034] 3-blowing device; 31-air pipe; 32-air fixing block; 33-clamp ring; 34-fixing sleeve;

[0035] 4-Wire. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0038] In addition, it should be noted that the directional terms such as left, right, up, and down in the embodiments of the present invention are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive. The following detailed description of the implementation of the present invention is given in conjunction with specific embodiments.

[0039] like Figures 1 to 6 As shown, this embodiment proposes a probe housing molding process, including the following steps:

[0040] Shell pre-preparation: Pre-prepare the metal composite layer 1 into a thin plate;

[0041] Shell softening: putting the thin plate in the pre-prepared shell into the blister cavity, and softening and deforming the thin plate by heating and suction in the cavity 2;

[0042] Shell molding: The blowing device 3 is used to blow air so that the thin plate is kept molded under a certain air pressure, and then the plastic liquid is injected. The plastic liquid flows into the cavity 2 through the injection flow channel 20 to form a shell covering the thin plate.

[0043] In the present invention, by using a metal composite layer 1, it is possible to absorb and reduce the electromagnetic wave energy projected onto the surface of the shell, effectively preventing electromagnetic radiation from harassing and harming surrounding equipment and personnel. In addition, the thin plate is first softened and deformed, and then air is blown through the blowing device 3 to keep the thin plate in shape. Finally, a plastic liquid is injected, and the plastic liquid flows into the mold cavity through the housing flow channel to form a probe shell, that is, the shell is formed by blow molding, which avoids the need for subsequent processing of the shell and reduces the cost of the processing technology.

[0044] Preferably, the air pressure in the present invention needs to be adjusted according to actual conditions and specific needs, that is, it only needs to be sufficient to allow the thin plate to maintain its shape, and the air pressure is not limited here.

[0045] Preferably, see Figure 2The metal composite layer 1 includes a sol layer 11 and a metal layer 13, and the metal layer 13 is arranged on the sol layer 11. In this way, by setting the sol layer 11 and the metal layer 13, the sol layer 11 can be fused with the plastic liquid, so that the metal layer 13 is retained, thereby achieving the bonding of the metal composite layer 1 to the outer shell. By setting the metal layer 13, the electromagnetic wave energy projected to the surface of the outer shell can be absorbed and reduced, effectively preventing electromagnetic radiation from harassing and harming surrounding equipment and personnel.

[0046] Preferably, see Figure 2 The above-mentioned metal layer 13 is set as a nano-metal layer, so as to better absorb and reduce the electromagnetic wave energy projected to the surface of the shell. Of course, in this embodiment, it can also be set as a metal layer 13 of other levels, which is not limited here.

[0047] Preferably, the metal composite layer 1 further comprises a heat insulating layer 12, which is disposed between the sol layer 11 and the metal layer 13. Thus, by providing the heat insulating layer 12, the metal layer 13 can be protected from erosion caused by heat released during the fusion process of the sol layer 11 and the plastic liquid. In addition, by providing the heat insulating layer 12, the bonding between the sol layer 11 and the metal layer 13 can be better achieved, thereby ensuring a stable connection between the metal composite layers 1.

[0048] Preferably, the molding temperature of the plastic liquid is greater than the melting point of the sol layer 11. Thus, since the molding temperature of the plastic liquid is higher than the melting point of the sol layer 11, the plastic liquid and the sol layer 11 can be well fused, and the heat insulating layer 12 and the metal layer 13 can be retained. Of course, in this embodiment, the molding temperature of the plastic liquid can also be equal to the melting point of the sol layer 11, thereby achieving fusion between the plastic liquid and the sol layer 11, which is not the only limitation here.

[0049] Preferably, see Figure 5 In the present invention, there is a gap between the above-mentioned cavity 2 and the above-mentioned thin plate (not shown in the drawings), and the gap can be filled with the above-mentioned plastic liquid to form the above-mentioned shell. Specifically, the thin plate is kept in shape by the blowing device 3, and then the plastic liquid is injected. The plastic liquid flows into the above-mentioned gap through the above-mentioned injection channel 20 and is cooled and formed, thereby forming a shell covering the above-mentioned thin plate.

[0050] Preferably, the above shell molding step also includes the following steps:

[0051] S031, fixing the thin plate to the two ends of the cavity 2 by means of a gas fixing block 32;

[0052] S032, respectively setting a blowing device 3 at both ends of the thin plate, each of the blowing devices 3 blows air through the air setting block 32 so that the thin plate is kept in shape under a certain air pressure;

[0053] S033, injecting the plastic liquid into the mold cavity 2, and the plastic liquid flows into the gap between the mold cavity 2 and the thin plate through the injection channel 20 to be cooled and formed.

[0054] In the present invention, by providing the gas setting block 32 and the blowing device 3, the above-mentioned thin plate can be better fixed and installed in the above-mentioned cavity 2, so that the thin plate always keeps the shape, and then the plastic liquid is injected into the above-mentioned cavity 2, and flows into the gap between the cavity 2 and the thin plate through the injection runner 20 to be cooled and formed, thereby forming a shell covering the above-mentioned metal composite layer 1. By using the blowing device 3 to blow air to form the shell, the complexity of the plastic mold is simplified, the cost is effectively saved, and the preparation of any shape of the finished product is realized.

[0055] Preferably, the gas-fixing block 32 is configured to be circular, so as to better fix the thin plate. Of course, in this embodiment, the gas-fixing block 32 may also be configured to be other shapes, which is not limited here.

[0056] Preferably, the shell molding step further includes the following steps:

[0057] Remove the air blowing device 3, and place the probe and the control board module for controlling the operation of the probe into the housing respectively;

[0058] The plastic liquid flows into the two ends of the housing through the injection flow channel 20 on the cavity 2 to wrap the probe and the control board module in the housing.

[0059] In the present invention, after the plastic liquid passes through the metal composite layer 1 and is cooled and formed, the blowing device 3 is removed, and the above-mentioned probe and the control board module for controlling the operation of the probe are respectively placed in the formed shell. At this time, the excess plastic liquid will flow into the two ends of the shell through the injection molding flow channel 20 to be cooled and formed, and then the above-mentioned probe and control board assembly are completely wrapped in the above-mentioned shell, thereby improving the sealing of the product, avoiding the subsequent sealing of the seal by glue, and reducing the subsequent workload.

[0060] Preferably, a wire 4 is inserted into one end of the shell, and the wire 4 can be electrically connected to the control board module. A through hole is provided on the shell for the wire 4 to pass through (not shown in the drawings). Preferably, the wire 4 and the shell are integrally injection molded, thereby improving the airtightness of the probe. Of course, in the present invention, the wire 4 can also be installed at one end of the shell by other means, which is not the only limitation here.

[0061] Preferably, see Figure 4 In the present invention, the blowing device includes an air pipe 31 and a mounting assembly, and the mounting assembly can be used to install the air pipe 31 in the cavity 2, and the air pressure can be provided through the air pipe 31 to keep the sheet metal in shape. Specifically, the mounting assembly includes a snap ring 33, which is sleeved on the air pipe 31. In addition, the mounting assembly also includes a fixing sleeve 34, and a receiving cavity (not shown in the drawings) for accommodating the fixing sleeve 34 is provided on the cavity 2. The fixing sleeve 34 can fix the air pipe 31 in the cavity 2. In this embodiment, the snap ring 33 is sleeved on the air pipe 31, so that the air pressure released by the air pipe 31 can be prevented from leaking. In addition, by setting the fixing sleeve 34, on the one hand, the air pipe 31 can be fixed in the cavity 2, and on the other hand, it can be used to resist the snap ring 33 to prevent the air pressure from leaking, thereby further improving the air tightness of the blowing device during the blowing process.

[0062] In the present invention, a metal layer 13 is provided inside the shell, so that the electromagnetic wave energy projected onto the surface of the shell can be absorbed and reduced, effectively preventing electromagnetic radiation from harassing and harming surrounding equipment and personnel. The probe shell is formed by blow molding, which can meet the shape required by the product on the one hand and improve the scope of use of the product. On the other hand, it simplifies the complexity of the plastic mold, effectively saves costs, and improves the performance of the product.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The probe housing molding process is characterized by: The steps include: Shell pre-preparation: Pre-prepare the metal composite layer into a thin plate; Shell softening: placing the thin plate in the shell pre-preparation step into a blister cavity, and softening and deforming the thin plate by heating and suctioning the cavity; Shell molding: blowing air through a blowing device so that the thin plate is kept in shape under a certain air pressure, and then injecting plastic liquid, the plastic liquid flows into the mold cavity through the injection flow channel to form a shell covering the thin plate; The blowing device includes an air pipe for providing air pressure to keep the sheet in shape, and a mounting assembly for mounting the air pipe in the cavity; The installation assembly includes a clamping ring, which is sleeved on the air pipe; the installation assembly also includes a fixing sleeve, and a receiving cavity for accommodating the fixing sleeve is opened on the cavity, and the fixing sleeve can fix the air pipe in the cavity.

2. The probe housing molding process as claimed in claim 1, characterized in that: The metal composite layer includes a sol layer for fusing with the plastic liquid, and a metal layer arranged on the sol layer for isolating electromagnetic radiation.

3. The probe housing molding process according to claim 2, characterized in that: The metal composite layer further comprises a heat insulating layer which is arranged between the sol layer and the metal layer and is used to protect the metal layer from being corroded by the heat released during the fusion process of the sol layer and the plastic liquid.

4. The probe housing molding process according to claim 2, characterized in that: The molding temperature of the plastic liquid is greater than the melting point temperature of the sol layer.

5. The probe housing molding process according to claim 2, characterized in that: There is a gap between the mold cavity and the thin plate for the plastic liquid to fill and mold to form the shell.

6. The probe housing molding process according to claim 5, characterized in that: The shell forming step also includes the following steps: S031, fixing the thin plate to two ends of the cavity by means of a gas fixing block; S032, respectively arranging air blowing devices at both ends of the thin plate, each of the air blowing devices blowing air through the air setting block so that the thin plate is kept in shape under a certain air pressure; S033, injecting the plastic liquid into the mold cavity, wherein the plastic liquid flows through the injection channel into the gap between the mold cavity and the thin plate to be cooled and formed.

7. The probe housing molding process according to claim 6, characterized in that: The shell forming step also includes the following steps: The air blowing device is removed, and the probe and the control panel module for controlling the operation of the probe are respectively placed into the housing; The plastic liquid flows into the two ends of the shell through the injection flow channel on the cavity to wrap the probe and the control board module in the shell.

8. The probe housing molding process according to claim 7, characterized in that: It also includes a wire that is inserted into one end of the shell and electrically connected to the control board module, and the shell is provided with a through hole for the wire to pass through.

9. The probe housing molding process according to claim 8, characterized in that: The wire material and the shell are integrally injection-molded.

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