Hot-pressing jig for opening and closing upper shell of remote controller

Abstract

The utility model discloses a hot-pressing jig for an upper shell of a switch remote controller, which comprises an outer machine shell, the outer machine shell comprises an upper table board, an air cylinder fixing plate is fixed on the upper table board, a lifting air cylinder is fixed on the air cylinder fixing plate, and a lifting aluminum plate is connected to a piston rod of the lifting air cylinder. Two ceramic insulation columns distributed left and right are fixed to the lower surface of the lifting aluminum plate, a heating aluminum plate is fixed between the lower surfaces of the two ceramic insulation columns, one or more brass column pressing rods are inserted into the heating aluminum plate, two L-shaped positioning strips distributed in a mirror image mode are arranged on the upper table top, an upper shell positioning mold is clamped between the two L-shaped positioning strips, and a lower shell positioning mold is clamped between the two L-shaped positioning strips. An upper shell profiling mold cavity is formed in the upper surface of the upper shell positioning mold, the brass column pressing rods and the columnar protruding points on the upper shell are arranged in a one-to-one alignment mode, a heating wire used for heating the heating aluminum plate is fixed into the heating aluminum plate, a controller is arranged in the outer shell, and the controller is electrically connected with the lifting air cylinder and the heating wire. The structure improves the working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining equipment, and particularly relates to a hot pressing fixture for an upper shell of a switch remote controller. Background Technique

[0002] With the improvement of people's living standards, electric curtains are generally used, so a switch remote controller will be equipped for the electric curtain. The switch remote controller generally includes a matching upper shell and a lower shell. The upper shell generally includes an outer shell 32 and an inner skeleton 22 to improve the overall strength of the upper shell.

[0003] When machining the upper shell, it is necessary to assemble the outer shell and the inner skeleton together. Considering that the outer shell 32 is made of plastic material, as Figure 1 、 Figure 2 shown, a plurality of columnar bumps 3201 are arranged inside the outer shell 32. When the outer shell 32 and the inner skeleton 22 are assembled later, the columnar bumps 3201 need to be inserted into the corresponding through holes of the inner skeleton 22 and partially exposed from the through holes 2201 on the inner skeleton 22. The current operation method is to perform point-to-point hot melting on the exposed columnar bumps 3201 one by one, that is, point-to-point. After cooling, the adhesion between the outer shell 32 and the inner skeleton 22 can be realized. However, considering this method, there are the following two problems:

[0004] 1. Manual point-to-point operation has relatively low work efficiency;

[0005] 2. If an automated device is used, the hot melt head needs to be connected to a two-axis movement module that can realize both horizontal movement and vertical movement, which undoubtedly increases the equipment cost;

[0006] In summary, the current method of performing point-to-point hot melting on columnar bumps cannot meet the market's requirements for work efficiency and low equipment cost, so improvement is needed. Content of the Utility Model

[0007] The purpose of the utility model is to provide a hot pressing fixture for an upper shell of a switch remote controller, which solves the problem that when connecting the outer shell and the inner skeleton on the upper shell of the existing switch remote controller, point-to-point hot melting is required for columnar bumps, resulting in low work efficiency or high equipment cost.

[0008] problem.

[0009] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0010] The utility model relates to a hot pressing fixture for the upper shell of a switch remote controller, which comprises an outer machine shell. The outer machine shell includes an upper table surface, on which a cylinder fixing plate perpendicular to the upper table surface is fixed. On the cylinder fixing plate, a lifting cylinder perpendicular to the upper table surface is fixed. A lifting aluminum plate is connected to the piston rod of the lifting cylinder. Two ceramic insulating columns distributed left and right are fixed on the lower surface of the lifting aluminum plate. A heating aluminum plate is fixed between the lower surfaces of the two ceramic insulating columns. More than one brass column pressing rod is inserted into the heating aluminum plate. Two mirror-image distributed L-shaped positioning strips are arranged on the upper table surface, and an upper shell positioning mold is clamped between the two L-shaped positioning strips. An upper shell profiling mold cavity for placing the upper shell is arranged on the upper surface of the upper shell positioning mold, and the brass column pressing rods are arranged in one-to-one alignment with the columnar convex points on the upper shell. A heating wire for heating the heating aluminum plate is fixed inside the heating aluminum plate. A controller is arranged inside the outer machine shell, and the controller is electrically connected to the lifting cylinder and the heating wire.

[0011] Preferably, in order to realize the adjustable setting of the size of the clamping opening formed between the two L-shaped positioning strips, a waist-shaped groove one is arranged on the horizontal bar of each L-shaped positioning strip, and a waist-shaped groove two is arranged on the vertical bar of each L-shaped positioning strip. Both the waist-shaped groove two and the waist-shaped groove one are horizontally arranged. A threaded hole one aligned with the waist-shaped groove one is arranged on the upper table surface, and a locking screw one passing through the waist-shaped groove one is threadedly connected to the threaded hole one. A threaded hole two aligned with the waist-shaped groove two is arranged on the upper table surface, and a locking screw two passing through the waist-shaped groove two is threadedly connected to the threaded hole two.

[0012] In order to be able to adjust the temperature and heating time, a temperature adjustment knob and a time setting relay are arranged at the rear end of the outer machine shell. A temperature sensor is arranged at the bottom of the heating aluminum plate. The temperature sensor, the temperature adjustment knob, and the time setting relay are all electrically connected to the controller.

[0013] Preferably, in order to facilitate the removal of the upper shell positioning mold, an operation handle is arranged behind the upper shell positioning mold.

[0014] Preferably, in order to facilitate the hands to hold both sides of the outer machine shell later and facilitate the handling of the entire device, hand insertion hole grooves are arranged on both sides of the outer machine shell.

[0015] Preferably, in order to replace different types of heating aluminum plates, a male plug electrically connected to the internal heating wire is arranged on the side of the heating aluminum plate, and a female plug electrically connected to the controller is arranged on the back of the outer machine shell. The female plug and the male plug are connected by a wire. Installation through holes are arranged on both sides of the heating aluminum plate. A locking screw three is threadedly connected to the bottom of the ceramic insulating column, and the locking screw three passes through the corresponding installation through hole and is threadedly connected to the bottom of the ceramic insulating column.

[0016] Preferably, for the convenience of installation, two fixed connecting plates are arranged at intervals above the upper table surface. The two fixed connecting plates are arranged in parallel. A rear connecting plate with a distance from the upper table surface is fixed between the rear of the two fixed connecting plates. The cylinder fixing plate is fixed between the two fixed connecting plates.

[0017] Preferably, in order to fix the upper shell, an upper pressing insulating plate for pressing the upper shell in the cavity of the upper shell profiling die is placed above the upper shell positioning die. Avoidance through holes for facilitating the penetration of the brass column pressing rod are correspondingly arranged on the upper pressing insulating plate.

[0018] The utility model has the following beneficial effects: Since this structure realizes the simultaneous hot melting of multiple brass column pressing rods on the columnar convex points, compared with the current point-to-point hot melting, the working efficiency is improved. At the same time, only one lifting cylinder, an upper shell positioning die, a heating wire and several ordinary components need to be added, and the relative equipment cost is low. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the outer shell in the prior art;

[0020] Figure 2 It is Figure 1 exploded structural diagram of;

[0021] Figure 3 It is a schematic front structural diagram of a hot pressing jig for the upper shell of a switch remote control in Embodiment 1;

[0022] Figure 4 It is a schematic structural diagram of the back of a hot pressing jig for the upper shell of a switch remote control in Embodiment 1 when the temperature adjustment knob is not installed;

[0023] Figure 5 It is a schematic back structural diagram of a hot pressing jig for the upper shell of a switch remote control in Embodiment 1;

[0024] Figure 6 It is a schematic structural diagram in Embodiment 1 when an upper shell positioning die is clamped between two L-shaped positioning strips, and an upper pressing insulating plate, a heating aluminum plate and brass column pressing rods are arranged on the upper shell positioning die;

[0025] Figure 7 It is Figure 6 structural diagram without installing the heating aluminum plate in;

[0026] Figure 8 It is a schematic structural diagram of the upper shell positioning die in Embodiment 1;

[0027] Figure 9 It is a schematic structural diagram of the upper pressing insulating plate in Embodiment 1;

[0028] Figure 10 Schematic front view of the heated aluminum plate in Embodiment 1;

[0029] Figure 11 Schematic view of the structure of the L-shaped positioning strip in Embodiment 1;

[0030] Figure 12 Schematic cross-sectional view of the heated aluminum plate in Embodiment 1;

[0031] Figure 13 Schematic view of the structure when only two L-shaped positioning strips are installed on the outer machine housing in Embodiment 1;

[0032] Figure 14 Schematic view of the structure of the outer machine housing in Embodiment 1;

[0033] Figure 15 Schematic front view of the hot pressing jig for the upper housing of a switch remote control in Embodiment 2;

[0034] Figure 16 Schematic back view of the heated aluminum plate in Embodiment 2;

[0035] Figure 17 Schematic view of the structure of another heated aluminum plate in Embodiment 2;

[0036] Figure 18 Schematic view of the separation structure of one kind of heated aluminum plate, two ceramic insulating columns and locking screw three.

[0037] Reference numerals:

[0038] Outer machine housing 1, upper table surface 101, cylinder fixing plate 2, lifting cylinder 3, lifting aluminum plate 4, ceramic insulating column 5, heated aluminum plate 6, brass column pressing rod 7, L-shaped positioning strip 8, upper housing positioning mold 9, upper housing profiling cavity 901, heating wire 10, controller 12, waist-shaped groove one 11, waist-shaped groove two 13, threaded hole one 14, locking screw one 15, threaded hole two 16, threaded hole three 161, locking screw two 17, temperature adjustment knob 18, time setting relay 19, temperature sensor 20, hand insertion hole groove 21, inner skeleton 22, through hole 2201, male plug 23, female plug 24, installation through hole 25, locking screw three 26, upper pressing insulating plate 27, limiting hole groove 271, avoidance through hole 28, operation handle 29, fixed connecting plate 30, rear connecting plate 31, outer shell 32, columnar bump 3201, protrusion 3202, jacking groove 33, power supply port 34, start switch 35. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0041] Embodiment 1

[0042] Please refer to Figure 3-14 As shown, a hot pressing fixture for the upper shell of a switch remote control disclosed in this embodiment includes an outer machine shell 1. The outer machine shell 1 includes an upper table surface 101. A cylinder fixing plate 2 perpendicular to the upper table surface 101 is fixed on the upper table surface 101. A lifting cylinder 3 perpendicular to the upper table surface 101 is fixed on the cylinder fixing plate 2. A lifting aluminum plate 4 is connected to the piston rod of the lifting cylinder 3. Two ceramic insulating columns 5 distributed left and right are fixed on the lower surface of the lifting aluminum plate 4. A heating aluminum plate 6 is fixed between the lower surfaces of the two ceramic insulating columns 5. More than one brass column pressing rod 7 is inserted into the heating aluminum plate 6. Two mirror-image distributed L-shaped positioning strips 8 are arranged on the upper table surface 101. An upper shell positioning mold 9 is clamped between the two L-shaped positioning strips 8. An upper shell profiling mold cavity 901 for placing the upper shell is arranged on the upper surface of the upper shell positioning mold 9. And the brass column pressing rods 7 and the columnar convex points 3201 on the upper shell are arranged in one-to-one alignment. A heating wire 10 for heating the heating aluminum plate 6 is fixed inside the heating aluminum plate 6. A controller 12 is arranged inside the outer machine shell 1. The controller 12 is electrically connected to the lifting cylinder 3 and the heating wire 10. For the convenience of power supply in the later stage, a power supply port 34 for supplying power to the controller 12 and a start switch 35 for controlling the on or off of the device are arranged on the back of the outer machine shell 1. And the start switch 35 is electrically connected to the controller 12. The power supply port 34 is connected to the mains through an existing power supply connector in the later stage. It should be noted that the specific structures and models of the controller 12, the lifting cylinder 3 and the heating wire 10 belong to the conventional technologies in the art, so no specific description is made here.

[0043] Preferably, in order to adjust the size of the clamping opening formed between the two L-shaped positioning bars 8, a first waist-shaped slot 11 is provided on the horizontal bar of each L-shaped positioning bar 8, and a second waist-shaped slot 13 is provided on the vertical bar of each L-shaped positioning bar 8. Both the second waist-shaped slot 13 and the first waist-shaped slot 11 are horizontally arranged. A first threaded hole 14 aligned with the first waist-shaped slot 11 is provided on the upper table surface 101. A first locking screw 15 passing through the first waist-shaped slot 11 is threadedly connected to the first threaded hole 14. A second threaded hole 16 aligned with the second waist-shaped slot 13 is provided on the upper table surface 101. A second locking screw 17 passing through the second waist-shaped slot 13 is threadedly connected to the second threaded hole 16. With the above structural arrangement, when the corresponding second locking screw 17 and the first locking screw 15 are loosened, the clamping opening between the left and right L-shaped positioning bars 8 can be finely adjusted, facilitating the clamping operation on the upper shell positioning mold 9 with different length dimensions, and improving the versatility of the entire device.

[0044] In order to adjust the temperature and heating time, a temperature adjustment knob 18 and a time setting relay 19 are provided at the rear end of the outer machine housing 1. A temperature sensor 20 is provided at the bottom of the heating aluminum plate 6. The temperature sensor 20, the temperature adjustment knob 18, and the time setting relay 19 are all electrically connected to the controller 12. In this embodiment, by providing the temperature sensor 20, the temperature of the heating aluminum plate 6 can be automatically detected, facilitating the later judgment of whether the temperature is too high or too low. At the same time, by providing the temperature adjustment knob 18, it is convenient to adjust the temperature, and by providing the time setting relay 19, it is convenient to adjust the set time of the temperature. It should be noted that the specific models of the temperature sensor 20, the temperature adjustment knob 18, and the time setting relay 19 belong to the conventional technology in this field and can be purchased, so no specific description is made here.

[0045] Preferably, in order to facilitate the removal of the upper shell positioning mold 9, an operation handle 29 is provided behind the upper shell positioning mold 9. By providing the operation handle 29, it is convenient to pull the upper shell positioning mold 9.

[0046] Preferably, in order to facilitate the hands to hold both sides of the outer machine housing 1 in the later stage and facilitate the handling of the entire device, hand insertion slots 21 are provided on both sides of the outer machine housing 1. By providing the hand insertion slots 21 on both sides of the outer machine housing 1, it is convenient for the hands to be inserted to lift the entire device, ultimately facilitating the user to move the entire device.

[0047] Preferably, for the convenience of installation, two fixed connecting plates 30 are arranged at intervals above the upper table surface 101. The two fixed connecting plates 30 are arranged in parallel. A rear connecting plate 31 with a distance from the upper table surface 101 is fixed between the rear sides of the two fixed connecting plates 30. The cylinder fixing plate 2 is fixed between the two fixed connecting plates 30. There is a distance between the rear connecting plate 3 and the upper table surface 101, which facilitates the final pulling out of the upper shell positioning die 9 from the rear. This distance plays a role of avoidance, and the installation and fixation of the cylinder fixing plate 2 are facilitated by setting the fixed connecting plates 30.

[0048] Preferably, in order to fix the upper shell, an upper pressing insulating plate 27 for pressing the upper shell in the upper shell profiling cavity 901 is placed above the upper shell positioning die 9. Avoidance through holes 28 for facilitating the passing of the brass column pressing rod 7 are correspondingly arranged on the upper pressing insulating plate 27. By setting the upper pressing insulating plate 27, the upper shell placed in the upper shell profiling cavity 901 can be pressed and limited, Figure 1 As shown, a convex 3202 protruding upward is arranged on the outer shell 32. Therefore, a limiting hole groove 271 for limiting the convex 3202 is arranged at the corresponding position of the upper pressing insulating plate 27.

[0049] As Figure 14 shown, in order to further prevent the upper shell positioning die 9 from moving randomly after being installed between the two L-shaped positioning strips 8, four threaded holes III 161 are correspondingly arranged on the upper table surface 101, and through hole grooves aligned with the threaded holes III 161 are correspondingly arranged on the upper shell positioning die 9. In the later stage, the upper shell positioning die 9 can be locked and fixed by screwing through the through hole grooves on the upper shell positioning die 9 and the threaded holes III 161.

[0050] The working principle of this structure is as follows: First, insert the upper housing positioning die 9 between the two L-shaped positioning bars 8. Then, remove the upper pressing insulating plate 27. Assemble the outer housing 32 and the inner skeleton 22 to form the entire upper housing. Place the upper housing into the upper housing profiling cavity 901 of the upper housing positioning die 9. Place the upper pressing insulating plate 27 and press the upper housing. Then, turn on the start switch 35 and plug in the power supply. At this time, drive the lifting cylinder 3 to work, and at the same time, let the heating wire 10 heat up. Use the heating aluminum plate 6 to conduct heat to the brass column pressing rod 7. As the lifting cylinder 3 works, drive the heating aluminum plate 6 to move downward, so that the heated brass column pressing rod 7 moves downward and contacts the columnar bump 3201 exposed from the inner skeleton 22, realizing the hot melting treatment of the columnar bump 3201. After the hot melting is completed, the lifting cylinder 3 resets, and the heating aluminum plate 6 moves upward. After cooling, the adhesion between the outer housing 32 and the inner skeleton 22 can be realized. Since this structure realizes the simultaneous hot melting of multiple brass column pressing rods 7 on the columnar bump 3201, compared with the current point-to-point hot melting, the working efficiency is improved. At the same time, only one lifting cylinder 3, an upper housing positioning die 9, a heating wire 10 and several ordinary components need to be added, and the relative equipment cost is low.

[0051] Embodiment 2

[0052] Please refer to Figure 15-18 As shown, a hot pressing fixture for the upper housing of a switch remote control disclosed in this embodiment. Preferably, in order to realize the replacement of different types of heating aluminum plates 6, a male plug 23 electrically connected to the internal heating wire 10 is arranged on the side of the heating aluminum plate 6. A female plug 24 electrically connected to the controller 12 is arranged on the back of the outer machine housing 1. The female plug 24 and the male plug 23 are connected by a wire. Installation through holes 25 are arranged on both sides of the heating aluminum plate 6. The bottom of the ceramic insulating column 5 is threadedly connected with a third locking screw 26. The third locking screw 26 passes through the corresponding installation through hole 25 and is threadedly connected to the bottom of the ceramic insulating column 5. It should be noted that different heating aluminum plates 6 can be equipped in the later stage of this embodiment, and the overall structure of each heating aluminum plate 6 is the same, and each has a male plug 23, a heating wire 10 and a jack slot 33 for inserting the brass column pressing rod 7. The only difference is the number and distribution position of the jack slots 33, such as Figure 16 and Figure 17For the heating aluminum plate 6 with jack slots 33 of different quantities and different position distributions, different types of upper shells of switch remote controls can be processed later. It only needs that the position distribution and quantity of the jack slots 33 on each heating aluminum plate 6 correspond to the positions of the columnar bumps 3201 on an upper shell of a switch remote control. Moreover, the plug socket 24 and the plug male seat 23 are used to cooperate with the wire, and male and female connectors respectively arranged at both ends of the wire and inserted into the corresponding plug socket 24 and plug male seat 23 can achieve electrical connection, which is also convenient for later disassembly. It should be noted that later, an upper pressing insulating plate 27 with an avoidance through hole 28 aligned with the jack slot 33 can be selected according to the position of the jack slot 33 on the heating aluminum plate 6. Therefore, several corresponding upper pressing insulating plates 27 can be arranged according to the number of heating aluminum plates 6 finally.

[0053] The above are only the preferred embodiments of the present invention, which do not limit the present invention. Any modification of the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made shall fall within the protection scope of the present invention.

Claims

1. A hot pressing jig for the upper shell of a switch remote controller, comprising an outer shell (1), characterized in that: The outer casing (1) comprises an upper table (101), a cylinder fixing plate (2) vertical to the upper table (101) is fixed on the upper table (101), a lifting cylinder (3) vertical to the upper table (101) is fixed on the cylinder fixing plate (2), a lifting aluminum plate (4) is connected to the piston rod of the lifting cylinder (3), two ceramic insulating columns (5) distributed on the left and right are fixed on the lower surface of the lifting aluminum plate (4), a heating aluminum plate (6) is fixed between the lower surfaces of the two ceramic insulating columns (5), and one or more brass column pressure rods (7) are inserted on the heating aluminum plate (6), and the upper table (1 01) is provided with two mirror-image-distributed L-shaped positioning strips (8), an upper shell positioning mold (9) is clamped between the two L-shaped positioning strips (8), an upper shell profiling mold cavity (901) for placing the upper shell is provided on the upper surface of the upper shell positioning mold (9), and the brass column pressure rod (7) is arranged in one-to-one alignment with the columnar protrusions on the upper shell, a heating wire (10) for heating the heating aluminum plate (6) is fixed inside the heating aluminum plate (6), a controller (12) is provided inside the outer shell (1), and the controller (12) is electrically connected to the lifting cylinder (3) and the heating wire (10).

2. A hot pressing jig for the upper housing of a switch remote controller according to claim 1, characterized in that: Each of the L-shaped positioning strips (8) is provided with a waist-shaped groove (11) on the horizontal strip, and each of the L-shaped positioning strips (8) is provided with a waist-shaped groove (13) on the vertical strip, and the waist-shaped groove (13) and the waist-shaped groove (11) are both arranged horizontally, and the upper table (101) is provided with a threaded hole (14) aligned with the waist-shaped groove (11), and the threaded hole (14) is threadedly connected with a locking screw (15) passing through the waist-shaped groove (11), and the upper table (101) is provided with a threaded hole (16) aligned with the waist-shaped groove (13), and the threaded hole (16) is threadedly connected with a locking screw (17) passing through the waist-shaped groove (13).

3. A hot pressing jig for the upper housing of a switch remote controller according to claim 2, characterized in that: A temperature adjustment knob (18) and a time setting relay (19) are arranged at the rear end of the outer casing (1), and a temperature sensor (20) is arranged at the bottom of the heating aluminum plate (6). The temperature sensor (20), the temperature adjustment knob (18), and the time setting relay (19) are all electrically connected to the controller (12).

4. The hot pressing jig for the upper housing of a switch remote controller according to claim 3, characterized in that: An operating handle (29) is arranged at the rear of the upper shell positioning mold (9).

5. The hot pressing jig for the upper housing of a switch remote controller according to claim 4, characterized in that: Hand insertion slots (21) are provided on both sides of the outer casing (1).

6. A hot pressing jig for the upper housing of a switch remote controller according to claim 5, characterized in that: A male plug socket (23) electrically connected to the internal heating wire (10) is arranged on the side of the heating aluminum plate (6), and a female plug socket (24) electrically connected to the controller (12) is arranged on the back of the external housing (1). The female plug socket (24) and the male plug socket (23) are connected by a wire. Mounting through holes (25) are arranged on both sides of the heating aluminum plate (6). The bottom of the ceramic insulating column (5) is threadedly connected with a locking screw three (26). The locking screw three (26) passes through the corresponding mounting through hole (25) and is threadedly connected to the bottom of the ceramic insulating column (5).

7. A hot pressing jig for the upper housing of a switch remote controller according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: Two fixed connection plates (30) are spaced apart above the upper table (101), the two fixed connection plates (30) are arranged in parallel, a rear connection plate (31) is fixed between the rear of the two fixed connection plates (30) and is spaced apart from the upper table (101), and the cylinder fixing plate (2) is fixed between the two fixed connection plates (30).

8. A hot pressing jig for the upper housing of a switch remote controller according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: An upper pressing insulating plate (27) is placed above the upper shell positioning mold (9) to press the upper shell in the upper shell profiling mold cavity (901), and an avoidance through hole (28) is correspondingly provided on the upper pressing insulating plate (27) to facilitate the brass column pressure rod (7) to pass through.

Images