Double-color mold of intelligent gas meter shell

Abstract

The utility model relates to the technical field of double-color molds, and discloses a double-color mold of an intelligent gas meter shell, which comprises a double-color machine turntable, the upper end face of the double-color machine turntable is sequentially provided with a primary injection mold for producing a primary injection product and a secondary injection mold for producing a secondary injection product from left to right, inserts are respectively arranged on the primary injection molding product and the secondary injection molding product, and the primary injection molding mold and the secondary injection molding mold are externally connected with a double-color machine. According to the utility model, the primary injection mold, the secondary injection mold, the double-color machine turntable and the double-color machine are matched, the primary injection mold is adopted to complete primary injection molding and produce a primary injection product, and then the secondary injection molding of the product is completed through mold closing after the double-color machine turntable rotates, so that a secondary injection product is produced; the double-color injection molding machine can complete injection molding of two colors at a time, time and cost for multiple times of injection molding are saved, and the problem that a double-color mold is inconvenient to operate is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to two -color mould technical field, concretely is a kind of two -color mould of intelligent gas meter shell. BACKGROUND

[0002] Injection molding is also called injection molding, it is a kind of injection molding molding method.The advantages of injection molding method are fast production speed, high efficiency, operation can realize automation etc., injection molding is suitable for mass production and complex product shape etc.molding processing field. Among them, two -color mould is the mould that two kinds of plastic materials are injected on the same injection molding machine, and is molded twice, but product only ejects once.In the process of two -color mould injection molding production to intelligent gas meter shell, various pipe installations need to be carried out on two -color mould to realize cooling water circulation.

[0003] However, since two -color mould needs to be rotated, the traditional cooling pipe is easily affected in the rotating process of two -color mould, thereby affecting the processing operation of two -color mould;And since the product types of intelligent gas meter shell are various, and the types of intelligent gas meter shell are different, the traditional two -color mould adopts bolt connection mode to realize the fixed installation between mould and equipment, when two -color mould is disassembled, bolt needs to be operated one by one, at this time, the way of connecting two -color mould and equipment by bolt is very inconvenient for the replacement and positioning operation of two -color mould, thereby affecting the injection molding operation of two -color mould to intelligent gas meter shell. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a two -color mould of intelligent gas meter shell, has the advantages that it adopts two -color machine injection molding mode, realizes one -time completion of two -color injection molding, improves the processing efficiency of intelligent gas meter shell, solves the problems proposed in the above background art.

[0005] The utility model provides following technical scheme: A two -color mould of intelligent gas meter shell, including two -color machine carousel, the upper end surface of two -color machine carousel is installed with the first injection mould for producing the primary injection product and the secondary injection mould for producing the secondary injection product from left to right in proper order, the primary injection product and secondary injection product are provided with insert respectively, the first injection mould and secondary injection mould are circumscribed with two -color machine, the first injection mould and secondary injection mould all are through fixed mould panel, upper fixed mould plate, lower fixed mould plate, ejector pin panel, ejector pin backing plate, mould leg, movable die panel, return spring, accurate positioning and station foot constitute, the left side of upper fixed mould plate evenly distributes water nozzle, the middle part of upper fixed mould plate lower end surface is fixedly sleeved with no.

[0006] Preferably, the lower fixed mould plate is connected with the back mould kernel through the eighth screw, the ejector pin panel is fixed with the eleventh ejector pin block through the fifth pin, the lower fixed mould plate is connected with the guide block through the sixth screw, the eleventh ejector pin block penetrates through the inside of the guide block, the seventh ejector pin block is arranged on one side of the eleventh ejector pin block, the ejector pin panel and the ejector pin backing plate are connected through the tenth screw, the lower fixed mould plate is fixedly installed with the second back mould kernel above the first front mould kernel, the first front mould kernel is connected with the upper fixed mould plate through the twelfth screw, the second back mould kernel is provided with the back insert positioning insert, and the back insert positioning insert is movably connected with the front insert positioning insert through the insert, the first inclined ejector pin and the seventh ejector pin block are installed on the left side and the right side of the surface of the second back mould kernel respectively and located in front of the back insert positioning insert, the eleventh ejector pin block and the fifth ejector pin block are sequentially arranged behind the seventh ejector pin block, the back insert positioning insert is sequentially provided with the back mould insert and the tenth ejector pin block behind, the lower fixed mould plate is provided with the ejection mechanism, and the ejection mechanism comprises the first inclined ejector pin, the third inclined ejector pin, the fifth ejector pin block and the sixth ejector pin block, the lower fixed mould plate is provided with the return rod, and the inner wall of the mould leg is sleeved with the seventh pin and the ninth screw in parallel with the ground.

[0007] Preferably, the second inclined ejector pin is fixedly installed between the front and back ejector pins, and the tenth ejector pin block is fixedly installed between the left and right ejector pins.

[0008] Preferably, the fixed die panel on the one-shot injection mold is connected with the upper fixed die plate through the eleventh screw, the upper fixed die plate on the one-shot injection mold is connected with the first front mold core through the twelfth screw and the thirteenth screw, the back surface of the upper fixed die plate on the one-shot injection mold is fixedly provided with a first hot runner, and the front surface of the first hot runner is provided with a mold locking piece.

[0009] Preferably, the right side of the front surface of the ejector plate on the two-shot injection mold is provided with a striker, and the lower side of the striker is provided with a travel switch.

[0010] Preferably, the bottom surface of the upper fixed die plate on the two-shot injection mold is provided with a front mold core through a fixing screw, the fixing screw is connected with the eleventh ejector block through the fifth pin, the front mold core is bolted with a second front mold insert, the front mold core is bolted with a third front mold insert, the middle part of the front mold core is provided with a fourth front mold insert, the back surface of the upper fixed die plate on the two-shot injection mold is provided with a hot runner, and the hot runner is connected with the rear mold core through the eighth screw.

[0011] Preferably, the fixed die panel on the two-shot injection mold is connected with the hot runner fixing plate through the fourteenth screw, the lower end of the second hot runner fixing plate is connected with the upper fixed die plate through the thirteenth screw, the side, away from the second hot runner fixing plate, of the upper fixed die plate is connected with the front mold insert through the sixteenth screw, the upper fixed die plate on the two-shot injection mold and the front mold core are connected through the fifteenth screw and the seventeenth screw, and the fixed die panel, the hot runner fixing plate and the upper fixed die plate are connected through the thirteenth screw.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The one-shot injection mold, the two-shot injection mold, the rotary disc of the double-color machine and the cooperation between the double-color machine are matched, the first injection molding is completed by the one-shot injection mold, the one-shot injection product is produced, the mold of the double-color machine is closed after the rotary disc is rotated, the second injection molding of the product is completed, and the two-shot injection product is produced, so that the double-color injection machine completes the injection of two colors at a time, the time and the cost of multiple injection are saved, and the inconvenient operation problem of the double-color mold is effectively solved.

[0014] 2. The one-shot injection mold, the two-shot injection mold and the water nozzle are matched, the cooling water enters the water nozzle from the water inlet end and is discharged from the water outlet end, the installation mode of the cooling water pipe in the mold is replaced, the cost of the installation of the cooling water pipe is saved, the installation space of the cooling water pipe is saved, and the problem that the cooling water pipe is damaged in the rotating process of the double-color mold is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1A structure schematic view of the utility model;

[0016] Figure 2 A side view of the once injection molding product of the utility model;

[0017] Figure 3 A side view of the twice injection molding product of the utility model;

[0018] Figure 4 A side view of the upper mold plate of the utility model;

[0019] Figure 5 A bottom view of the first front mold core of the utility model;

[0020] Figure 6 A top view of the rear mold insert of the utility model;

[0021] Figure 7 A side view of the ejector pin of the utility model;

[0022] Figure 8 A bottom view of the hot runner of the utility model;

[0023] Figure 9 A top view of the eleventh ejector block of the utility model;

[0024] Figure 10 A side view of the guide block of the utility model;

[0025] Figure 11 A side view of the ninth screw of the utility model;

[0026] Figure 12 A sectional view of the mold plate of the utility model;

[0027] Figure 13 A sectional view of the first rear mold core of the utility model.

[0028] In the figure: 2, two-color machine; 2-1, two-color machine rotary disc; 3, ejector pin; 100, primary injection mold; 101-1, No. 1 front mold insert; 101-2, No. 1 front mold insert; 101-3, front mold exhaust insert; 101-4, front mold insert positioning insert; 101-5, No. 5 front mold insert; 101-6, No. 6 front mold insert; 102-1, front mold insert; 102-2, No. 2 front mold insert; 102-3, No. 3 front mold insert; 102-4, No. 4 front mold insert; 200, secondary injection mold; 8, insert; 9, primary injection product; 10, secondary injection product; 110, fixed mold panel; 111, upper fixed mold plate; 112, lower fixed mold plate; 113, ejector pin panel; 114, ejector pin backing plate; 115, mold leg; 116, movable mold panel; 117, return spring; 118, fine positioning; 119, foot; 120, water nozzle; 121, No. 1 hot runner; 122, mold locking piece; 123, return rod; 201-1, No. 1 rear mold insert; 201-2, rear mold insert; 201-6, rear mold insert positioning insert; 210-1, hot runner fixing plate; 212, No. 2 hot runner; 213, fixing screw; 220, striker; 221, travel switch; C201, No. 2 rear mold insert; C404, guide block; C405, fifth pin; C406, sixth screw; C407, seventh pin; C408, eighth screw; C409, ninth screw; C410, tenth screw; C411, eleventh screw; C412, twelfth screw; C413, thirteenth screw; C414, fourteenth screw; C415, fifteenth screw; C416, sixteenth screw; C417, seventeenth screw; C102-9, front mold insert; C3B01, first inclined ejector pin; C3B01-1, second inclined ejector pin; C3B04, third inclined ejector pin; C3B05, fifth ejector block; C3B06, sixth ejector block; C3B07, seventh ejector block; C3B07-1, inclined ejector pin seat; C3B10, tenth ejector block; C3B11, eleventh ejector block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Please refer to Figures 1 to 5The utility model provides a double -color mould of intelligent gas meter shell, including double -color machine carousel 2 1, the upper end surface of double -color machine carousel 2 1 is installed with the first injection mould 100 for producing primary injection product 9 and the second injection mould 200 for producing secondary injection product 10 from left to right in proper order, and the primary injection product 9 and the secondary injection product 10 are provided with inserts 8 respectively, and the first injection mould 100 and the second injection mould 200 are circumscribed with double -color machine 2, and the double -color machine 2 is arranged to provide power for mould closing and mould opening, and the first injection mould 100 and the second injection mould 200 are both through fixed mould panel 110, upper fixed mould plate 111, lower fixed mould plate 112, ejector pin panel 113, ejector pin backing plate 114, mould leg 115, movable mould panel 116, reset spring 117, fine positioning 118 and station foot 119, and the upper fixed mould plate 111 is evenly distributed with water nozzle 120 on the left side, and the water nozzle 120 is arranged to provide a passage for cooling water to enter the inside of the mould, replacing the use of cooling water pipe, and the lower end surface of the upper fixed mould plate 111 is fixedly sleeved with a first front mould core 101 1 in the middle, and the lower end surface of the first front mould core 101 1 is respectively provided with front mould insert positioning insert 101 4, first front mould insert 101 2, sixth front mould insert 101 6, front mould exhaust insert 101 3 and fifth front mould insert 101 5, and the upper end surface of the lower fixed mould plate 112 is fixedly sleeved with second rear mould core C201 below the first front mould core 101 1, and the front mould insert positioning insert 101 4 and the rear mould insert positioning insert 201 6 jointly complete the final positioning of the insert 8, the double -color machine 2 injects raw materials, the first injection mould 100 completes the first injection molding of the product, produces the primary injection product 9, the double -color machine 2 drives the mould to complete the mould opening, the double -color machine carousel 2 1 rotates 180 DEG, and then closes the mould again, the double -color machine 2 injects raw materials again, and the second injection molding of the product is completed, and the secondary injection product 10 is produced, that is, the finished product is processed, and the upper end surface of the ejector pin panel 113 is fixedly installed with a plurality of ejector pins 3, and the ejector pins 3 are arranged to provide power for the ejection of the product from the mould.

[0031] The lower die plate 112 is connected with the rear die core 201 through the eighth screw C408, the ejector pad 113 is fixed with the eleventh ejector block C3B11 through the fifth pin C405, the lower die plate 112 is connected with the guide block C404 through the sixth screw C406, the inside of the guide block C404 penetrates the eleventh ejector block C3B11, one side of the eleventh ejector block C3B11 is provided with the seventh ejector block C3B07, the ejector pad 113 is connected with the ejector pad plate 114 through the tenth screw C410, the lower die plate 112 is fixedly installed with the second rear die core C201 above the first front die core 101-1, the first front die core 101-1 is connected with the upper die plate 111 through the twelfth screw C412, the second rear die core C201 is provided with the rear die insert positioning insert 201-6, and the rear die insert positioning insert 201-6 is movably connected with the front die insert positioning insert 101-4 through the insert 8, the left and right sides of the surface of the second rear die core C201 are respectively installed with the first inclined ejector C3B01 and the seventh ejector block C3B07 in front of the rear die insert positioning insert 201-6, the rear of the seventh ejector block C3B07 is sequentially provided with the eleventh ejector block C3B11 and the fifth ejector block C3B05, the rear of the rear die insert positioning insert 201-6 is sequentially provided with the rear die insert 201-2 and the tenth ejector block C3B10, the lower die plate 112 is provided with an ejection mechanism, and the ejection mechanism comprises the first inclined ejector C3B01, the third inclined ejector C3B04, the fifth ejector block C3B05, the sixth ejector block C3B06, the first inclined ejector C3B01, the third inclined ejector C3B04, the fifth ejector block C3B05, the sixth ejector block C3B06 cooperate to eject the product, the product is separated from the mold, and the next step of repeating the above operation is performed, the lower die plate 112 is provided with a return rod 123, and the inner wall of the die leg 115 is sleeved with the seventh pin C407 and the ninth screw C409 in the direction parallel to the ground.

[0032] Please refer to Figures 5 to 10 The second inclined ejector C3B01-1 is fixedly installed between the front and rear ejectors 3, and the tenth ejector block C3B10 is fixedly installed between the left and right ejectors 3.

[0033] The fixed die plate 110 on the injection mold 100 is connected with the upper die plate 111 through the eleventh screw C411, the upper die plate 111 on the injection mold 100 is connected with the first front die core 101-1 through the twelfth screw C412 and the thirteenth screw C413, the back surface of the upper die plate 111 on the injection mold 100 is fixedly installed with the first hot runner 121, and the front surface of the first hot runner 121 is provided with the mold locking piece 122.

[0034] The right side of the front surface of the ejector plate 114 on the over-molding mold 200 is provided with a striker 220, and the lower side of the striker 220 is provided with a travel switch 221.

[0035] Please refer to Figures 11 to 13 The bottom surface of the upper clamp plate 111 on the over-molding mold 200 is provided with a front mold core 102-1 through a fixing screw 213, the fixing screw 213 is connected with the eleventh top block C3B11 through the fifth pin C405, the front mold core 102-1 is bolted with a second front mold insert 102-2, the front mold core 102-1 is bolted with a third front mold insert 102-3, the middle part of the front mold core 102-1 is provided with a fourth front mold insert 102-4, the back surface of the upper clamp plate 111 on the over-molding mold 200 is provided with a second hot runner 212, the second hot runner 212 is connected with the second back mold core C201 through the eighth screw C408.

[0036] The clamp plate 110 on the over-molding mold 200 is connected with the hot runner fixing plate 210-1 through the fourteenth screw C414, the lower end of the hot runner fixing plate 210-1 is connected with the upper clamp plate 111 through the thirteenth screw C413, the side of the upper clamp plate 111 away from the hot runner fixing plate 210-1 is connected with the front mold insert C102-9 through the sixteenth screw C416, the upper clamp plate 111 on the over-molding mold 200 and the front mold core 102-1 are connected through the fifteenth screw C415 and the seventeenth screw C417, and the clamp plate 110, the hot runner fixing plate 210-1 and the upper clamp plate 111 are connected through the thirteenth screw C413.

[0037] Working principle: when in use, the insert 8 is placed in the back mold insert positioning insert 201-6 of the primary injection mold 100 when the mold is in the open mold state, the double-color machine 2 drives the mold to close, the front mold insert positioning insert 101-4 and the back mold insert positioning insert 201-6 jointly complete the final positioning of the insert 8, the double-color machine 2 injects raw materials, the primary injection mold 100 completes the first injection molding of the product, produces the primary injection product 9, the double-color machine 2 drives the mold to open, the double-color machine turntable 2-1 rotates 180°, and then closes again, the double-color machine 2 injects raw materials again, completes the second injection molding of the product, produces the secondary injection product 10, which can be processed into a finished product, and then the double-color machine 2 drives the mold to open, the ejection mechanism is driven by the first inclined ejector pin C3B01, the third inclined ejector pin C3B04, the fifth ejector block C3B05 and the sixth ejector block C3B06, the product is ejected, the product is separated from the mold, the next operation is repeated, then, since the two back mold parts of the double-color mold are completely the same, the second back mold core C201 is connected with the lower fixed mold plate 112 by the eighth screw C408, the eleventh ejector block C3B11 is fixed with the ejector pin panel 113 by the fifth pin C405, the guide block C404 is fixed on the lower fixed mold plate 112 by the sixth screw C406, the eleventh ejector block C3B11 passes through the middle of the guide block C404, the ejector pin panel 113 and the ejector pin backing plate 114 are connected by the tenth screw C410, finally, when processing the front mold part of the primary injection mold 100, the fixed mold panel 110 is connected with the upper fixed mold plate 111 by the eleventh screw C411, the front mold core 101-1 is connected with the upper fixed mold plate 111 by the twelfth screw C412 and the thirteenth screw C413, when processing the front mold part of the secondary injection mold 200, the fixed mold panel 110 is connected with the hot runner fixed plate 210-1 by the fourteenth screw C414, the upper fixed mold plate 111 is connected with the front mold core 102-1 by the fifteenth screw C415 and the seventeenth screw C417, and the fixed mold panel 110, the hot runner fixed plate 210-1 and the upper fixed mold plate 111 are connected by the thirteenth screw C413.

[0038] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. In the drawings of the utility model, the filling pattern is only used to distinguish the layers, and does not have any other limitation.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A two-color mold for a smart gas meter housing, comprising a two-color machine rotary disc (2-1), characterized in that: The upper end face of the double-color machine rotating disc (2-1) is sequentially provided from left to right with a primary injection mold (100) for producing a primary injection product (9) and a secondary injection mold (200) for producing a secondary injection product (10), the primary injection product (9) and the secondary injection product (10) are respectively provided with inserts (8), the primary injection mold (100) and the secondary injection mold (200) are externally connected with a double-color machine (2), the primary injection mold (100) and the secondary injection mold (200) are both composed of a fixed mold panel (110), an upper fixed mold plate (111), a lower fixed mold plate (112), a ejector pin panel (113), an ejector pin backing plate (114), a mold leg (115), a movable mold panel (116), a return spring (117), a fine positioning device (118) and a stand foot (119), the left side of the upper fixed mold plate (111) is uniformly distributed with water nozzles (120), the middle part of the lower end face of the upper fixed mold plate (111) is fixedly sleeved with a first front mold core (101-1), the lower end face of the first front mold core (101-1) is respectively provided with a front mold insert positioning insert (101-4), a first front mold insert (101-2), a sixth front mold insert (101-6), a front mold exhaust insert (101-3) and a fifth front mold insert (101-5), the upper end face of the lower fixed mold plate (112) is fixedly sleeved with a second rear mold core (C201) located below the first front mold core (101-1), and the upper end face of the ejector pin panel (113) is fixedly provided with a plurality of ejector pins (3).

2. The bi-color mold of the intelligent gas meter housing according to claim 1, characterized in that: The lower positioning mold plate (112) is connected with the rear mold core (C201) through the eighth screw (C408), the ejector face plate (113) is fixed with the eleventh ejector block (C3B11) through the fifth pin (C405), the lower positioning mold plate (112) is connected with the guide block (C404) through the sixth screw (C406), the inside of the guide block (C404) penetrates the eleventh ejector block (C3B11), one side of the eleventh ejector block (C3B11) is provided with the seventh ejector block (C3B07), the ejector face plate (113) and the ejector pad (114) are connected through the tenth screw (C410), the lower positioning mold plate (112) is fixedly installed with the second rear mold core (C201) above the first front mold core (101-1), the first front mold core (101-1) is connected with the upper positioning mold plate (111) through the twelfth screw (C412), the second rear mold core (C201) is provided with the rear mold insert positioning insert (201-6), and the rear mold insert positioning insert (201-6) is movably connected with the front mold insert positioning insert (101-4) through the insert (8), the left and right sides of the surface of the second rear mold core (C201) are respectively installed with the first inclined ejector (C3B01) and the seventh ejector block (C3B07) located in front of the rear mold insert positioning insert (201-6), the rear of the seventh ejector block (C3B07) is sequentially provided with the eleventh ejector block (C3B11) and the fifth ejector block (C3B05), the rear of the rear mold insert positioning insert (201-6) is sequentially provided with the rear mold insert (201-2) and the tenth ejector block (C3B10), the lower positioning mold plate (112) is provided with an ejection mechanism, and the ejection mechanism comprises the first inclined ejector (C3B01), the third inclined ejector (C3B04), the fifth ejector block (C3B05), the sixth ejector block (C3B06), the lower positioning mold plate (112) is provided with a return rod (123), and the inner wall of the mold leg (115) is sleeved with the seventh pin (C407) and the ninth screw (C409) parallel to the ground.

3. The bi-color mold of the intelligent gas meter housing according to claim 1, characterized in that: The second inclined ejector (C3B01-1) is fixedly installed between the front and rear ejectors (3), and the tenth ejector block (C3B10) is fixedly installed between the left and right ejectors (3), and the lower ends of the second inclined ejector (C3B01-1) and the tenth ejector block (C3B10) are fixedly connected with the upper end surface of the ejector face plate (113).

4. The bi-color mold of the intelligent gas meter housing according to claim 1, characterized in that: The positioning mold plate (110) on the one-time injection mold (100) is connected with the upper positioning mold plate (111) through the eleventh screw (C411), the upper positioning mold plate (111) on the one-time injection mold (100) is connected with the first front mold core (101-1) through the twelfth screw (C412) and the thirteenth screw (C413), the upper positioning mold plate (111) on the one-time injection mold (100) is fixedly installed with the first hot runner (121) on the back, and the front of the first hot runner (121) is provided with a mold locking piece (122).

5. The bi-color mold of the intelligent gas meter housing according to claim 1, characterized in that: The right side of the front surface of the ejector plate (114) on the secondary injection mold (200) is provided with a striker (220), and the lower side of the striker (220) is provided with a travel switch (221).

6. The bi-color mold of a smart gas meter housing according to claim 1, wherein: The bottom surface of the upper fixed mold plate (111) on the secondary injection mold (200) is provided with a front mold core (102-1) through a fixing screw (213), the fixing screw (213) is connected with an eleventh top block (C3B11) through a fifth pin (C405), the front mold core (102-1) is bolted with a second front mold insert (102-2), the front mold core (102-1) is provided with a third front mold insert (102-3) through a bolt, the middle part of the front mold core (102-1) is provided with a fourth front mold insert (102-4), the back surface of the upper fixed mold plate (111) on the secondary injection mold (200) is provided with a second hot runner (212), and the second hot runner (212) is connected with a rear mold core (C201) through an eighth screw (C408).

7. The bi-color mold of a smart gas meter housing according to claim 1, wherein: The fixed mold panel (110) on the secondary injection mold (200) is connected with a hot runner fixing plate (210-1) through a fourteenth screw (C414), the lower end of the hot runner fixing plate (210-1) is connected with the upper fixed mold plate (111) through a thirteenth screw (C413), the side, away from the hot runner fixing plate (210-1), of the upper fixed mold plate (111) is connected with a front mold insert (C102-9) through a sixteenth screw (C416), the upper fixed mold plate (111) and the front mold core (102-1) on the secondary injection mold (200) are connected through a fifteenth screw (C415) and a seventeenth screw (C417), and the fixed mold panel (110), the hot runner fixing plate (210-1) and the upper fixed mold plate (111) are connected through the thirteenth screw (C413).

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