A mold for an ultrasonic treatment head shell

Abstract

The utility model provides a mould of ultrasonic treatment head shell, including lower mould and upper mould, the upper end of lower mould is provided with the forming recess, the middle part of forming recess is provided with round positioning slot, the middle part of upper mould lower extreme is fixed with the forming boss, the forming boss is placed in the forming recess, and the forming cavity is formed between the forming boss and the forming recess, the forming boss includes first round step, second round step and top round protruding from top to bottom and sets up coaxially in proper order, the outer diameter of first round step is less than the inner diameter of forming recess, and the outer diameter of first round step, second round step and top round protruding reduces in proper order, and the positioning cavity for fixing the middle part of metal bottom plate is formed between top round protruding and round positioning slot. The utility model is used for the integral injection moulding of annular shell and metal bottom piece, saves the subsequent assembly procedure, and improves the production efficiency of ultrasonic treatment head.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic therapy head technology, and in particular to a mold for an ultrasonic therapy head shell. Background Technology

[0002] The housing of an ultrasonic treatment head typically includes an annular sidewall and a metal base plate. The metal base plate is placed at the bottom of the annular sidewall and is bonded and fixed to the annular sidewall. An annular pressure plate is fitted inside the annular sidewall, which limits the upper end of the metal base plate. The annular sidewall, annular pressure plate, and metal base plate are separate structures. The annular sidewall and annular pressure plate are manufactured separately and then assembled and fixed with the metal base plate. The process is cumbersome and reduces the production efficiency of ultrasonic treatment heads. Moreover, as the ultrasonic treatment head is used for a long time, the metal base plate is prone to loosening, which affects the treatment effect and also makes the waterproof performance of the treatment head worse. Utility Model Content

[0003] This invention proposes a mold for the housing of an ultrasonic therapy head, which is used for the integral injection molding of the annular outer shell and the metal base plate, saving subsequent assembly processes and improving the production efficiency of ultrasonic therapy heads.

[0004] The technical solution of this utility model is implemented as follows: A mold for an ultrasonic treatment head shell includes a lower mold and an upper mold. The upper end of the lower mold is provided with a forming groove, and the middle of the forming groove is provided with a circular positioning groove. A forming protrusion is fixed in the middle of the lower end of the upper mold. The forming protrusion is placed in the forming groove, and a forming cavity is formed between the forming protrusion and the forming groove. The forming protrusion includes a first circular step, a second circular step, and a top circular protrusion arranged coaxially from top to bottom. The outer diameter of the first circular step is smaller than the inner diameter of the forming groove. The outer diameters of the first circular step, the second circular step, and the top circular protrusion decrease sequentially. A positioning cavity for fixing the middle of the metal base plate is formed between the top circular protrusion and the circular positioning groove.

[0005] Furthermore, the bottom of the second circular step abuts against the upper end of the metal base plate, and a gap is provided between the lower end of the metal base plate and the bottom of the forming groove. The outer diameter of the metal base plate is larger than the outer diameter of the second circular step and smaller than the outer diameter of the forming groove.

[0006] Furthermore, a truncated block is provided on one side of the second circular step. The outer diameter of the truncated block is the same as the outer diameter of the first circular step, and the height of the truncated block is the same as that of the second circular step.

[0007] Furthermore, an inlet hole forming block is provided on the other side of the second circular step. The lower end of the inlet hole forming block is higher than the bottom of the second circular step, and the upper end is connected to the upper mold. The outer wall of the inlet hole forming block abuts against the inner wall of the forming groove.

[0008] Furthermore, an injection hole is provided in the middle of the upper end of the upper mold, and several connecting holes are provided at the lower end of the injection hole. The molding cavity is connected to the injection hole through the connecting holes.

[0009] Furthermore, a first annular protrusion is fixed at the lower end of the upper mold. The first annular protrusion is located outside the first circular step and is coaxially arranged with the first circular step. The first annular protrusion is placed inside the molding cavity.

[0010] Furthermore, a second annular protrusion is fixed to the bottom of the first circular step, and the second annular protrusion is coaxially arranged with the first circular step.

[0011] Furthermore, a vertically lifting rod is provided inside the lower mold, with the upper end of the lifting rod flush with the bottom of the forming groove.

[0012] Furthermore, the upper mold is equipped with a vertically lifting demolding rod, the lower end of which is flush with the bottom of the upper mold.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a mold for the integrated injection molding of a ring-shaped outer shell and a metal base plate, saving subsequent assembly steps and improving the production efficiency of ultrasonic treatment heads. The metal base plate is positioned and fixed by the cooperation of a circular protrusion and a circular positioning groove on the top, preventing displacement during injection molding and ensuring product quality.

[0015] This invention utilizes the combination of a molding groove and a molding protrusion. The molding protrusion includes a first circular step, a second circular step, and a top circular protrusion for injection molding of the annular shell. Furthermore, the annular shell contains a synchronously molded positioning ring for fixing the upper end of the metal base plate. A gap is provided between the lower end of the metal base plate and the bottom of the molding groove, ensuring that the lower end of the annular shell has a synchronously molded annular base plate. The annular base plate is fixed to the lower end of the metal base plate, increasing the stability of the metal base plate and improving waterproofing, preventing the medication from the electrode patches from entering the treatment head. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of the mold;

[0018] Figure 2 for Figure 1Sectional view of AA;

[0019] Figure 3 for Figure 2 Sectional view of BB;

[0020] Figure 4 This is a bottom view of the upper mold;

[0021] Figure 5 A three-dimensional view of the head shell treated with ultrasound;

[0022] Figure 6 This is a cross-sectional view of the ultrasonic treatment head shell;

[0023] Figure 7 for Figure 5 A bottom view;

[0024] Figure 8 for Figure 5 The main view.

[0025] Lower mold 1, upper mold 2, forming groove 3, circular positioning groove 4, first circular step 5, second circular step 6, top circular protrusion 7, cut-off block 8, inlet hole forming block 9, injection hole 10, connecting hole 11, first annular protrusion 12, second annular protrusion 13, lifting rod 14, demolding rod 15, metal base plate 16, circular groove 17, circular protrusion 18, annular sidewall 19, annular base plate 20, positioning pressure ring 21, annular slot 22, first annular positioning groove 23, second annular positioning groove 24. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, the terms "upper" and "lower" are relative to... Figure 2 and Figure 3 The positional relationship is shown.

[0028] Example 1

[0029] like Figure 1-3 As shown, a mold for an ultrasonic treatment head shell includes a lower mold 1 and an upper mold 2. The upper end of the lower mold 1 is provided with a forming groove 3, and the middle part of the forming groove 3 is provided with a circular positioning groove 4. The forming groove 3 and the circular positioning groove 4 are arranged on the same axis.

[0030] A forming protrusion is fixed in the middle of the lower end of the upper mold 2. The forming protrusion is placed in the forming groove 3, and a forming cavity is formed between the forming protrusion and the forming groove 3. The forming protrusion includes a first circular step 5, a second circular step 6 and a top circular protrusion 7 connected from top to bottom. The first circular step 5, the second circular step 6 and the top circular protrusion 7 are arranged on the same axis, and their outer diameters decrease sequentially. The outer diameter of the first circular step 5 is smaller than the inner diameter of the forming groove 3.

[0031] The circular positioning groove 4 corresponds to the circular protrusion 18 at the lower end of the metal base plate 16. The vertical depth of the circular positioning groove 4 is less than the vertical height of the circular protrusion 18. Here, the vertical direction is parallel to the axial direction. The top circular protrusion 7 corresponds to the circular groove 17 at the upper end of the metal base plate 16. The vertical height of the circular protrusion 18 is consistent with the vertical depth of the circular groove 17. A positioning cavity for fixing the middle part of the metal base plate 16 is formed between the top circular protrusion 7 and the circular positioning groove 4. The bottom of the second circular step 6 abuts against the upper end of the metal base plate 16. A gap is provided between the lower end of the metal base plate 16 and the bottom of the forming groove 3. The outer diameter of the metal base plate 16 is larger than the outer diameter of the second circular step 6 and smaller than the outer diameter of the forming groove 3, such as the outer diameter of the metal base plate 16 being consistent with the outer diameter of the first circular step 5. With this structure, when the shell of the treatment head is injection molded, it is convenient to simultaneously wrap and fix the edge of the metal base plate 16, while the circular protrusion 18, the circular groove 17, and the adjacent peripheral plane of the circular groove 17 are exposed.

[0032] like Figure 2 and 4 As shown, a cutting block 8 is fixed to one side of the second circular step 6. The outer diameter of the cutting block 8 is the same as the outer diameter of the first circular step 5, and the height of the cutting block 8 is the same as that of the second circular step 6. A wire inlet forming block 9 is fixed to the other side of the second circular step 6. The lower end of the wire inlet forming block 9 is higher than the bottom of the second circular step 6, and the upper end of the wire inlet forming block 9 is connected to the upper mold 2. The outer wall of the wire inlet forming block 9 abuts against the inner wall of the forming groove 3.

[0033] like Figure 3 As shown, an injection hole 10 is provided in the middle of the upper end of the upper mold 2, and several connecting holes 11 are provided at the lower end of the injection hole 10. The connecting holes 11 are staggered from the inlet hole molding block 9. The molding cavity is connected to the injection hole 10 through the connecting holes 11, and the injection liquid enters the molding cavity through the injection hole 10 and the connecting holes 11.

[0034] like Figure 3 and 4As shown in Figure 6, a first annular protrusion 12 is fixed to the lower end of the upper mold 2. The first annular protrusion 12 is located outside the first circular step 5 and is coaxially arranged with the first circular step 5. The first annular protrusion 12 is placed in the molding cavity. A second annular protrusion 13 is fixed to the bottom of the first circular step 5 and is coaxially arranged with the first circular step 5. The first annular protrusion 12 is used to form the first annular positioning groove 23 on the top of the annular sidewall 19 of the treatment head shell, and the second annular protrusion 13 is used to form the second annular positioning groove 24 on the top of the positioning pressure plate inside the treatment head shell.

[0035] The housing of the ultrasonic treatment head includes an annular outer shell and a metal base plate 16. The upper end of the metal base plate 16 is provided with a circular groove 17, and the lower end of the metal base plate 16 is provided with a circular protrusion 18. The metal base plate 16 and the circular protrusion 18 are integral structures. The annular outer shell includes an annular sidewall 19. The inner side of the lower end of the annular sidewall 19 is provided with an annular base plate 20. The inner wall of the annular sidewall 19 is provided with a positioning pressure ring 21. The lower end of the positioning pressure ring 21 and the annular base plate 20 are provided with an annular groove 22. The edge of the metal base plate is fixed in the annular groove 22. The upper end of the annular sidewall 19 is provided with a first annular positioning groove 23, and the upper end of the positioning pressure ring 21 is provided with a second annular positioning groove 24.

[0036] The method of using the mold is as follows: Place the metal base plate 16 in the forming groove 3, place the circular protrusion 18 in the circular positioning groove 4, then move the upper mold 2 down, place the top circular protrusion 7 in the circular groove 17, and abut the bottom of the second circular step 6 against the upper end of the metal base plate 16 to complete the mold closing of the upper mold 2 and the lower mold 1. The injection molding liquid enters the forming cavity through the injection hole 10 and the connecting hole 11. After the treatment head shell is formed, separate the upper mold 2 and the lower mold 1 and remove the treatment head shell.

[0037] Example 2

[0038] This embodiment is basically the same as Embodiment 1, except that: Figure 2 and 3 As shown, a vertically sliding demolding rod 15 is provided inside the upper mold 2. The lower end of the demolding rod 15 is flush with the bottom of the upper mold 2. Both the demolding rod 15 and the upper mold 2 move vertically up and down. After the treatment head shell is formed, the upper mold 2 moves upward along the demolding rod 15. The lower end of the demolding rod 15 extends out of the upper mold 2, restricting the upward movement of the treatment head shell, thereby separating the treatment head shell from the upper mold 2. Then the demolding rod 15 moves upward again.

[0039] The lower mold 1 is equipped with a vertically lifting rod 14, the upper end of which is flush with the bottom of the forming groove 3. The lower mold 1 is fixed in position. After the treatment head shell is formed, the lifting rod 14 moves upward, pushing the treatment head shell upward and separating it from the forming groove 3. To improve the cooling rate, water cooling pipes (not shown in the figure) can also be installed in the upper mold 2 or the lower mold 1. The vertical lifting of the demolding rod 15, the upper mold 2, and the lifting rod 14 can be controlled by their respective hydraulic cylinders.

[0040] After the treatment head shell is formed, the upper mold 2 moves upward along the demolding rod 15. The lower end of the demolding rod 15 extends out of the upper mold 2, restricting the upward movement of the treatment head shell, thereby separating the treatment head shell from the upper mold 2. Then the demolding rod 15 moves upward again. Finally, the lifting rod 14 moves upward, pushing the treatment head shell upward to separate it from the forming groove 3, completing the demolding of the treatment head shell. The lifting rod 14 then moves downward to reset.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold for an ultrasonic therapy head shell, comprising a lower mold and an upper mold, characterized in that: The upper end of the lower mold is provided with a forming groove, and the middle of the forming groove is provided with a circular positioning groove. The middle of the lower end of the upper mold is fixed with a forming protrusion. The forming protrusion is placed in the forming groove, and a forming cavity is formed between the forming protrusion and the forming groove. The forming protrusion includes a first circular step, a second circular step and a top circular protrusion arranged coaxially from top to bottom. The outer diameter of the first circular step is smaller than the inner diameter of the forming groove. The outer diameters of the first circular step, the second circular step and the top circular protrusion decrease in sequence. A positioning cavity for fixing the middle of the metal base plate is formed between the top circular protrusion and the circular positioning groove.

2. The mold for an ultrasonic therapy head shell according to claim 1, characterized in that: The bottom of the second circular step abuts against the top of the metal base plate, and a gap is provided between the bottom of the metal base plate and the bottom of the forming groove. The outer diameter of the metal base plate is larger than the outer diameter of the second circular step and smaller than the outer diameter of the forming groove.

3. The mold for an ultrasonic therapy head shell according to claim 1 or 2, characterized in that: A truncated block is provided on one side of the second circular step. The outer diameter of the truncated block is the same as the outer diameter of the first circular step, and the height of the truncated block is the same as that of the second circular step.

4. The mold for an ultrasonic therapy head shell according to claim 3, characterized in that: On the other side of the second circular step, there is an inlet hole forming block. The lower end of the inlet hole forming block is higher than the bottom of the second circular step, and the upper end is connected to the upper mold. The outer wall of the inlet hole forming block abuts against the inner wall of the forming groove.

5. A mold for an ultrasonic therapy head shell according to claim 1 or 2, characterized in that: An injection hole is provided in the middle of the upper end of the upper mold, and several connecting holes are provided at the lower end of the injection hole. The molding cavity is connected to the injection hole through the connecting holes.

6. The mold for an ultrasonic therapy head shell according to claim 1, characterized in that: The lower end of the upper mold is fixed with a first annular protrusion. The first annular protrusion is located on the outside of the first circular step and is coaxial with the first circular step. The first annular protrusion is placed in the molding cavity.

7. The mold for an ultrasonic therapy head shell according to claim 1, characterized in that: A second annular protrusion is fixed at the bottom of the first circular step, and the second annular protrusion is arranged coaxially with the first circular step.

8. The mold for an ultrasonic therapy head shell according to claim 1, characterized in that: The lower mold is equipped with a vertically lifting rod, the upper end of which is flush with the bottom of the forming groove.

9. The mold for an ultrasonic therapy head shell according to claim 1, characterized in that: The upper mold is equipped with a vertically lifting demolding rod, the lower end of which is flush with the bottom of the upper mold.

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