Shower head back cover injection mold

Abstract

The utility model relates to a shower back cover injection mold, include: left board, the right end surface of left board is provided with male die plate, the right end surface inside of male die plate is provided with male die, the right of male die is provided with female die, the outside of female die is provided with female die plate, the right end surface of female die plate is provided with right board, can one -off molding above -mentioned semi -finished product shower back cover, need not to carry out many times processing, production speed obtains the improvement, is favorable to batch production.

Description

Technical Field

[0001] This utility model relates to the field of injection molds, specifically to an injection mold for a shower head back cover. Background Technology

[0002] Injection molds are the core tools in the production of plastic products, which are formed by injecting molten plastic into the mold.

[0003] A shower head cover is available as shown in the attached image. Figure 1-2 As shown, a shower back cover includes a semi-finished shower back cover 1' and a liquid passage hole disposed on the semi-finished shower back cover 1'. The semi-finished shower back cover 1' includes a semi-finished shower back cover body 2', a liquid inlet channel 3' disposed on the top surface of the semi-finished shower back cover body 2', and a broken thread portion 4' disposed on the semi-finished shower back cover body 2' and located in the liquid inlet channel 3'.

[0004] The liquid passage includes a liquid passage main hole 5', which is disposed on the top surface of the semi-finished shower head back cover body 2' and located below the liquid inlet channel 3'; and several liquid passage side holes 6', which are disposed on the top surface of the semi-finished shower head back cover body 2' and located around the liquid passage main hole 5'. The liquid passage main hole 5' and the liquid passage side holes 6' are both connected to the liquid inlet channel 3'.

[0005] The broken threaded part 4' is used to connect with the external liquid inlet pipe, and the liquid inlet channel 3' is used to allow the liquid in the liquid inlet pipe to enter the semi-finished shower head back cover body 2' after the broken threaded part 4' is connected with the external liquid inlet pipe. The liquid passage hole allows the liquid entering the semi-finished shower head back cover body 2' to enter the shower head cover.

[0006] Existing injection molds cannot form the above-mentioned semi-finished shower head back cover in one step, requiring multiple processing steps, resulting in slow production speed and hindering mass production.

[0007] The purpose of this utility model research is to design a shower head back cover injection mold to address the problems existing in the prior art. Utility Model Content

[0008] In view of the problems existing in the prior art, the present invention provides a shower head back cover injection mold, which can effectively solve at least one of the problems existing in the prior art.

[0009] The technical solution of this utility model is:

[0010] A shower head back cover injection mold, comprising:

[0011] A left plate, wherein a male template is provided on the right end face of the left plate, a male mold core is provided inside the right end face of the male template, a female mold core is provided to the right of the male mold core, a female template is provided outside the female mold core, and a right plate is provided on the right end face of the female template;

[0012] A through groove is provided on the right end face of the mother template. Two sliders are symmetrically arranged on the mother template and within the through groove. The sliders slide back and forth on the mother template. A first mold core is provided on the front slider and within the mother mold core. A second mold core is provided on the rear slider and within the mother mold core. A third mold core is provided on the right plate and between the first mold core and the second mold core. A forming core-pulling component is provided between the two sliders, the right plate, and the mother template.

[0013] A casting device is provided between the right plate and the third mold core, and an ejection mechanism is provided between the left plate, the male mold plate, and the male mold core.

[0014] Furthermore, the forming core-pulling component includes a first pressure strip disposed on the right end face of the mother template and simultaneously located above the two sliders; a second pressure strip disposed on the right end face of the mother template and simultaneously located below the two sliders; a first tilting guide rod disposed obliquely on the left end face of the right plate and located in front of the third mold core; and a second tilting guide rod disposed obliquely on the left end face of the right plate and located behind the third mold core. The first tilting guide rod and the second tilting guide rod respectively cooperate with the two sliders.

[0015] Furthermore, the casting device includes a sprue disposed inside the right end face of the right plate; a casting channel extending through the third mold core; and a transition channel disposed inside the right plate, the transition channel connecting the sprue and the casting channel.

[0016] Furthermore, the diameter of the pouring channel increases from right to left.

[0017] Furthermore, a first water-cooling component is provided between the male mold plate and the male mold core, and a second water-cooling component is provided between the female mold plate and the female mold core.

[0018] Furthermore, the first water-cooled component includes several first cooling pipes closed at both ends. One end of each first cooling pipe is located inside and above the male mold core, and the other end is located inside and above the male mold plate. The several first cooling pipes are arranged sequentially from front to back. A first inlet pipe is located inside the male mold plate and to the left of the several first cooling pipes. One end of the first inlet pipe is connected to the foremost first cooling pipe, and the other end of the first inlet pipe extends out of the male mold plate. A first outlet pipe is located inside the male mold plate and between the first inlet pipe and the male mold core. The first cooling pipe is connected to the first outlet pipe, and the first outlet pipe extends out of the male mold plate.

[0019] Several second cooling pipes, closed at both ends, are provided. One end of each second cooling pipe is located inside the lower part of the male mold core, and the other end is located inside the lower part of the male mold plate. The second cooling pipes are located below the first cooling pipe, and the several second cooling pipes are arranged sequentially from front to back. A second inlet pipe is located inside the male mold plate and below the first inlet pipe. One end of the second inlet pipe is connected to the foremost second cooling pipe, and the other end of the second inlet pipe extends out of the male mold plate. A second outlet pipe is located inside the male mold plate and between the second inlet pipe and the male mold core. The second outlet pipe is located below the first outlet pipe, and the second cooling pipe is connected to the second outlet pipe. The second outlet pipe extends out of the male mold plate.

[0020] Furthermore, the first water-cooled component also includes a third cooling pipe closed at both ends, disposed inside the male mold core; a third inlet pipe, disposed inside the male mold core and above the second outlet pipe, one end of the third inlet pipe being connected to one end of the third cooling pipe, and the other end of the third inlet pipe extending out of the male mold core; and a third outlet pipe, disposed inside the male mold core and between the third inlet pipe and the first outlet pipe, one end of the third inlet pipe being connected to the other end of the third cooling pipe, and the other end of the third inlet pipe extending out of the male mold core.

[0021] Furthermore, the second water-cooled component includes a fourth cooling pipe closed at both ends, disposed above the interior of the female mold core; a fourth inlet pipe disposed inside the female mold plate, one end of the fourth inlet pipe being connected to one end of the fourth cooling pipe, and the other end of the fourth inlet pipe extending out of the female mold plate; and a fourth outlet pipe disposed inside the female mold plate and above the fourth inlet pipe, one end of the fourth outlet pipe being connected to the other end of the fourth cooling pipe, and the other end of the fourth outlet pipe extending out of the female mold plate.

[0022] A fifth cooling pipe, closed at both ends, is located inside the lower part of the female mold core; a fifth inlet pipe is located inside the female mold plate and below the fourth inlet pipe, with one end of the fifth inlet pipe connected to one end of the fifth cooling pipe, and the other end of the fifth inlet pipe exiting the female mold plate; a fifth outlet pipe is located inside the female mold plate and between the fifth inlet pipe and the fourth inlet pipe, with one end of the fifth outlet pipe connected to the other end of the fifth cooling pipe, and the other end of the fifth outlet pipe exiting the female mold plate.

[0023] Furthermore, two limiting plates are provided on the right plate, and a limiting rod corresponding to the position of the limiting plate is provided on the male template. A limiting groove that cooperates with the limiting rod is provided on the limiting plate; several protective blocks are provided on the right end face of the female template.

[0024] Furthermore, the ejection mechanism includes two connecting seats arranged front and rear, the connecting seats being disposed between the left plate and the male mold plate; a push plate, slidably disposed between the left plate and the male mold plate, the push plate being located between the two connecting seats, and a base plate being disposed on the left end face of the push plate; several ejection guide posts, the ejection guide posts being disposed between the left plate and the male mold plate, the ejection guide posts passing through the base plate and the push plate, and a return spring being disposed between the push plate and the male mold plate and located outside the ejection guide posts; and several ejector pins, one end of the ejector pin being disposed on the push plate, and the other end of the ejector pin passing through the male mold plate and engaging with the male mold core.

[0025] Therefore, this utility model provides the following effects and / or advantages:

[0026] 1) The injection molten material is injected into the female mold core through the gating device. The injection molten material passes through the male mold core, female mold core, first mold core, second mold core, and third mold core to form the semi-finished shower head back cover body, liquid inlet channel, and broken thread part, thereby forming the semi-finished shower head back cover. After cooling, the right plate separates from the female mold plate, thereby driving the third mold core to move to the right, thereby causing the core pulling part to drive the two sliders to move closer to each other, and then the first mold core and the second mold core move closer to each other. The female mold plate separates from the male mold plate, thereby separating the female mold core from the male mold core. The semi-finished shower head back cover is taken out from the male mold core through the ejection mechanism.

[0027] In summary, the ability to form the above-mentioned semi-finished shower head back cover in one step eliminates the need for multiple processing steps, thereby increasing production speed and facilitating mass production.

[0028] 2) The first water-cooling component is used to quickly and evenly remove the heat of the injection melt in the male mold core during the molding of the male mold core, female mold core, first mold core, second mold core and third mold core into a semi-finished shower head back cover, thereby efficiently molding a semi-finished shower head back cover with a stable shape and qualified quality.

[0029] The second water-cooling component is used to quickly and evenly remove the heat of the injection melt in the female mold core during the molding of the semi-finished shower head back cover by the male mold core, female mold core, first mold core, second mold core, and third mold core, thereby efficiently molding a semi-finished shower head back cover with stable shape and qualified quality.

[0030] 3) The combination of the limiting plate, limiting rod, and limiting groove can limit the movement of the right plate to the right, thereby improving the structural strength of the injection mold; the protective blocks mentioned above are used to buffer the right plate when it approaches the mother plate, preventing the right plate from making hard contact with the mother plate and reducing the vibration of the injection mold.

[0031] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0032] It should be understood that the above summary and the following detailed description of the present invention are exemplary and explanatory, and are intended to provide further explanation of the present invention as claimed. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of an existing shower head back cover.

[0034] Figure 2 For the corresponding Figure 1 A structural diagram from another perspective.

[0035] Figure 3 This is a schematic diagram of the structure of this utility model.

[0036] Figure 4 For the corresponding Figure 3 The exploded diagram.

[0037] Figure 5 For the corresponding Figure 3 Another perspective of the exploded view.

[0038] Figure 6 This is a structural diagram of the left plate, male template, and ejection mechanism in this utility model.

[0039] Figure 7 For the corresponding Figure 5 Enlarged view of part A.

[0040] Figure 8 This is a schematic diagram of the structure of the first water-cooled component in this utility model.

[0041] Figure 9 This is a schematic diagram of the structure of the second water-cooling component in this utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] Semi-finished shower head back cover 1', semi-finished shower head back cover body 2', liquid inlet channel 3', broken thread part 4', liquid positive hole 5', liquid side hole 6', left plate 1, male mold plate 2, male mold core 3, female mold core 4, female mold plate 5, right plate 6, through groove 7, slider 8, first mold core 9, second mold core 10, third mold core 11, first pressure strip 12, second pressure strip 13, first tilting guide rod 14, second tilting guide rod 15, sprue 16, gating channel 17, first cooling pipe 19, first inlet pipe 20, First outlet pipe 21, Second cooling pipe 22, Second inlet pipe 23, Second outlet pipe 24, Third cooling pipe 25, Third inlet pipe 26, Third outlet pipe 27, Fourth cooling pipe 28, Fourth inlet pipe 29, Fourth outlet pipe 30, Fifth cooling pipe 31, Fifth inlet pipe 32, Fifth outlet pipe 33, Limiting plate 34, Limiting groove 35, Protective block 36, Connecting seat 37, Push plate 38, Base plate 39, Ejector guide post 40, Reset spring 41, Ejector pin 42, Protective pad 43, Stable guide post 44. Detailed Implementation

[0044] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0045] refer to Figure 3-9 A shower head back cover injection mold, comprising:

[0046] Left plate 1, a male template 2 is provided on the right end face of the left plate 1, a male mold core 3 is provided inside the right end face of the male template 2, a female mold core 4 is provided to the right of the male mold core 3, a female template 5 is provided outside the female mold core 4, and a right plate 6 is provided on the right end face of the female template 5.

[0047] A through groove 7 is provided on the right end face of the mother template 5. Two sliders 8 are symmetrically arranged on the mother template 5 and within the through groove 7. The sliders 8 slide back and forth on the mother template 5. A first mold core 9 is provided on the front slider 8 and within the mother mold core 4. A second mold core 10 is provided on the rear slider 8 and within the mother mold core 4. A third mold core 11 is provided on the right plate 6 and between the first mold core 9 and the second mold core 10. A core-pulling component is provided between the two sliders 8, the right plate 6, and the mother template 5.

[0048] A casting device is provided between the right plate 6 and the third mold core 11, and an ejection mechanism is provided between the left plate 1, the male mold plate 2, and the male mold core 3;

[0049] Molten injection is injected into the female mold core 4 through the gating device. The molten injection passes through the male mold core 3, female mold core 4, first mold core 9, second mold core 10, and third mold core 11 to form the semi-finished shower head back cover body, liquid inlet channel, and broken thread part, thereby forming the semi-finished shower head back cover. After cooling, the right plate 6 separates from the female mold plate 5, thereby driving the third mold core 11 to move to the right, which causes the core pulling part to drive the two sliders 8 to move closer to each other, and then the first mold core 9 and the second mold core 10 to move closer to each other. The female mold plate 5 separates from the male mold plate 2, thereby separating the female mold core 4 from the male mold core 3. The semi-finished shower head back cover is taken out from the male mold core 3 by the ejection mechanism.

[0050] The forming core-pulling component includes a first pressure strip 12, disposed on the right end face of the mother template 5 and simultaneously located above the two sliders 8; a second pressure strip 13, disposed on the right end face of the mother template 5 and simultaneously located below the two sliders 8; a first tilting guide rod 14, inclinedly disposed on the left end face of the right plate 6 and located in front of the third mold core 11; and a second tilting guide rod 15, inclinedly disposed on the left end face of the right plate 6 and located behind the third mold core 11. The first tilting guide rod 14 and the second tilting guide rod 15 respectively cooperate with the two sliders 8. The cooperation of the first pressure strip 12 and the second pressure strip 13 allows the sliders 8 to slide back and forth on the mother template 5 without detaching from it. The front end face of the first tilting guide rod 14 and the rear end face of the second tilting guide rod 15 are both provided with wear-resistant plates.

[0051] The casting device includes a spout 16 disposed inside the right end face of the right plate 6; a casting channel 17 disposed through the third mold core 11; and a transition channel (not shown) disposed inside the right plate 6, the transition channel connecting the spout 16 and the casting channel 17.

[0052] The diameter of the pouring channel 17 increases from right to left.

[0053] A first water-cooling component is provided between the male mold plate 2 and the male mold core 3, and a second water-cooling component is provided between the female mold plate 5 and the female mold core 4. Both the first and second water-cooling components are connected to an external water tank equipped with a pump.

[0054] The first water-cooling component is used to quickly and evenly remove the heat of the injection melt in the male mold core 3 during the molding of the semi-finished shower head back cover by the male mold core 3, female mold core 4, first mold core 9, second mold core 10, and third mold core 11, thereby efficiently molding a semi-finished shower head back cover with stable shape and qualified quality.

[0055] The second water-cooling component is used to quickly and evenly remove the heat of the injection melt in the female mold core 4 during the molding of the semi-finished shower head back cover by the male mold core 3, female mold core 4, first mold core 9, second mold core 10, and third mold core 11, thereby efficiently molding a semi-finished shower head back cover with stable shape and qualified quality.

[0056] The first water-cooled component includes several first cooling pipes 19, each closed at both ends. One end of each first cooling pipe 19 is located inside the upper part of the male mold core 3, and the other end of each first cooling pipe 19 is located inside the upper part of the male mold plate 2. The several first cooling pipes 19 are arranged sequentially from front to back. A first inlet pipe 20 is located inside the male mold plate 2 and to the left of the several first cooling pipes 19. One end of the first inlet pipe 20 is connected to the foremost first cooling pipe 19, and the other end of the first inlet pipe 20 extends out of the male mold plate 2. A first outlet pipe 21 is located inside the male mold plate 2 and between the first inlet pipe 20 and the male mold core 3. The first cooling pipes 19 are connected to the first outlet pipe 21, and the first outlet pipe 21 extends out of the male mold plate 2.

[0057] Several second cooling pipes 22, closed at both ends, are provided. One end of the second cooling pipe 22 is located inside the lower part of the male mold core 3, and the other end of the second cooling pipe 22 is located inside the lower part of the male mold plate 2. The second cooling pipe 22 is located below the first cooling pipe 19, and the several second cooling pipes 22 are arranged sequentially from front to back. A second inlet pipe 23 is provided inside the male mold plate 2 and located below the first inlet pipe 20. One end of the second inlet pipe 23 is connected to the foremost second cooling pipe 22, and the other end of the second inlet pipe 23 extends out of the male mold plate 2. A second outlet pipe 24 is provided inside the male mold plate 2 and located between the second inlet pipe 23 and the male mold core 3. The second outlet pipe 24 is located below the first outlet pipe 21, and the second cooling pipe 22 is connected to the second outlet pipe 24. The second outlet pipe 24 extends out of the male mold plate 2.

[0058] The first water-cooled component also includes a third cooling pipe 25 closed at both ends, disposed inside the male mold core 3; a third inlet pipe 26 disposed inside the male mold plate 2 and above the second outlet pipe 24, one end of the third inlet pipe 26 being connected to one end of the third cooling pipe 25, and the other end of the third inlet pipe 26 extending out of the male mold plate 2; and a third outlet pipe 27 disposed inside the male mold plate 2 and between the third inlet pipe 26 and the first outlet pipe 21, one end of the third inlet pipe 26 being connected to the other end of the third cooling pipe 25, and the other end of the third inlet pipe 26 extending out of the male mold plate 2.

[0059] The second water-cooled component includes a fourth cooling pipe 28 closed at both ends, disposed above the interior of the female mold core 4; a fourth inlet pipe 29 disposed inside the female mold plate 5, one end of the fourth inlet pipe 29 being connected to one end of the fourth cooling pipe 28, and the other end of the fourth inlet pipe 29 extending out of the female mold plate 5; and a fourth outlet pipe 30 disposed inside the female mold plate 5 and above the fourth inlet pipe 29, one end of the fourth outlet pipe 30 being connected to the other end of the fourth cooling pipe 28, and the other end of the fourth outlet pipe 30 extending out of the female mold plate 5.

[0060] A fifth cooling pipe 31, closed at both ends, is located inside the lower part of the female mold core 4; a fifth inlet pipe 32 is located inside the female mold plate 5 and below the fourth inlet pipe 29, with one end of the fifth inlet pipe 32 connected to one end of the fifth cooling pipe 31, and the other end of the fifth inlet pipe 32 extending out of the female mold plate 5; a fifth outlet pipe 33 is located inside the female mold plate 5 and between the fifth inlet pipe 32 and the fourth inlet pipe 29, with one end of the fifth outlet pipe 33 connected to the other end of the fifth cooling pipe 31, and the other end of the fifth outlet pipe 33 extending out of the female mold plate 5.

[0061] The right plate 6 is provided with two limiting plates 34, and the male template 2 is provided with a limiting rod corresponding to the position of the limiting plate 34. The limiting plate 34 is provided with a limiting groove 35 that cooperates with the limiting rod. The cooperation of the limiting plate 34, the limiting rod, and the limiting groove 35 can play a limiting role when the right plate 6 moves to the right, thereby improving the structural strength of the injection mold.

[0062] Several protective blocks 36 are provided on the right end face of the mother template 5. The protective blocks 36 are used to buffer when the right plate 6 is close to the mother template 5, to prevent the right plate 6 from making hard contact with the mother template 5, and to reduce the vibration of the injection mold.

[0063] The ejection mechanism includes two connecting seats 37 arranged front and rear, the connecting seats 37 being disposed between the left plate 1 and the male mold plate 2; a push plate 38, slidably disposed between the left plate 1 and the male mold plate 2, the push plate 38 being located between the two connecting seats 37, and a base plate 39 being disposed on the left end face of the push plate 38; several ejection guide posts 40, the ejection guide posts 40 being disposed between the left plate 1 and the male mold plate 2, the ejection guide posts 40 penetrating the base plate 39 and the push plate 38, and a return spring 41 being disposed between the push plate 38 and the male mold plate 2 and located outside the ejection guide posts 40; and several ejector pins 42, one end of the ejector pin 42 being disposed on the push plate 38, and the other end of the ejector pin 42 passing through the male mold plate 2 and engaging with the male mold core 3.

[0064] The right end face of the push plate 38 is provided with several protective pads 43, which are used to prevent the push plate 38 from directly impacting the male template 2. Several guide posts 44 are provided between the left plate 1 and the male template 2. The guide posts 44 are located between the ejection guide posts 40. The guide posts 44 penetrate the base plate 39 and the push plate 38. The guide posts 44 are used to enhance the guiding effect when the base plate 39 and the push plate 38 slide.

[0065] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. This invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0066] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0067] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A shower head back cover injection mold, characterized in that: include: A left plate, wherein a male template is provided on the right end face of the left plate, a male mold core is provided inside the right end face of the male template, a female mold core is provided to the right of the male mold core, a female template is provided outside the female mold core, and a right plate is provided on the right end face of the female template; A through groove is provided on the right end face of the mother template. Two sliders are symmetrically arranged on the mother template and within the through groove. The sliders slide back and forth on the mother template. A first mold core is provided on the front slider and within the mother mold core. A second mold core is provided on the rear slider and within the mother mold core. A third mold core is provided on the right plate and between the first mold core and the second mold core. A forming core-pulling component is provided between the two sliders, the right plate, and the mother template. A casting device is provided between the right plate and the third mold core, and an ejection mechanism is provided between the left plate, the male mold plate, and the male mold core.

2. The shower head back cover injection mold according to claim 1, characterized in that: The forming core-pulling component includes a first pressure strip, disposed on the right end face of the mother template and simultaneously located above the two sliders; a second pressure strip, disposed on the right end face of the mother template and simultaneously located below the two sliders; a first tilting guide rod, inclinedly disposed on the left end face of the right plate and located in front of the third mold core; and a second tilting guide rod, inclinedly disposed on the left end face of the right plate and located behind the third mold core. The first tilting guide rod and the second tilting guide rod respectively cooperate with the two sliders.

3. The shower head back cover injection mold according to claim 1, characterized in that: The casting device includes a sprue disposed inside the right end face of the right plate; a casting channel extending through the third mold core; and a transition channel disposed inside the right plate, the transition channel connecting the sprue and the casting channel.

4. The shower head back cover injection mold according to claim 3, characterized in that: The diameter of the pouring channel increases from right to left.

5. The shower head back cover injection mold according to claim 1, characterized in that: A first water-cooling component is provided between the male mold plate and the male mold core, and a second water-cooling component is provided between the female mold plate and the female mold core.

6. The shower head back cover injection mold according to claim 5, characterized in that: The first water-cooled component includes several first cooling pipes closed at both ends. One end of the first cooling pipe is located inside the upper part of the male mold core, and the other end of the first cooling pipe is located inside the upper part of the male mold plate. The several first cooling pipes are arranged sequentially from front to back. A first inlet pipe is located inside the male mold plate and to the left of the several first cooling pipes. One end of the first inlet pipe is connected to the foremost first cooling pipe, and the other end of the first inlet pipe extends out of the male mold plate. The first outlet pipe is disposed inside the male mold plate and located between the first inlet pipe and the male mold core. The first cooling pipe is connected to the first outlet pipe and the first outlet pipe extends out of the male mold plate. Several second cooling pipes, each closed at both ends, are provided. One end of each second cooling pipe is located inside the lower part of the male mold core, and the other end is located inside the lower part of the male mold plate. The second cooling pipes are located below the first cooling pipe, and the several second cooling pipes are arranged sequentially from front to back. A second inlet pipe is provided inside the male mold plate and below the first inlet pipe. One end of the second inlet pipe is connected to the foremost second cooling pipe, and the other end of the second inlet pipe extends out of the male mold plate. The second outlet pipe is disposed inside the male mold plate and located between the second inlet pipe and the male mold core. The second outlet pipe is located below the first outlet pipe. The second cooling pipe is connected to the second outlet pipe and the second outlet pipe extends out of the male mold plate.

7. The shower head back cover injection mold according to claim 6, characterized in that: The first water-cooled component further includes a third cooling pipe closed at both ends, disposed inside the male mold core; a third inlet pipe, disposed inside the male mold core and above the second outlet pipe, one end of the third inlet pipe being connected to one end of the third cooling pipe, and the other end of the third inlet pipe extending out of the male mold core; and a third outlet pipe, disposed inside the male mold core and between the third inlet pipe and the first outlet pipe, one end of the third inlet pipe being connected to the other end of the third cooling pipe, and the other end of the third inlet pipe extending out of the male mold core.

8. The shower head back cover injection mold according to claim 5, characterized in that: The second water-cooled component includes a fourth cooling pipe closed at both ends, disposed above the interior of the female mold core; a fourth inlet pipe disposed inside the female mold plate, one end of the fourth inlet pipe being connected to one end of the fourth cooling pipe, and the other end of the fourth inlet pipe extending out of the female mold plate; and a fourth outlet pipe disposed inside the female mold plate and above the fourth inlet pipe, one end of the fourth outlet pipe being connected to the other end of the fourth cooling pipe, and the other end of the fourth outlet pipe extending out of the female mold plate. A fifth cooling pipe, closed at both ends, is located inside the lower part of the female mold core; a fifth inlet pipe is located inside the female mold plate and below the fourth inlet pipe, with one end of the fifth inlet pipe connected to one end of the fifth cooling pipe, and the other end of the fifth inlet pipe extending out of the female mold plate; The fifth outlet pipe is located inside the mother template and between the fifth inlet pipe and the fourth inlet pipe. One end of the fifth outlet pipe is connected to the other end of the fifth cooling pipe, and the other end of the fifth outlet pipe extends out of the mother template.

9. The shower head back cover injection mold according to claim 1, characterized in that: Two limiting plates are provided on the right plate, and a limiting rod corresponding to the position of the limiting plate is provided on the male template. A limiting groove that cooperates with the limiting rod is provided on the limiting plate. Several protective blocks are provided on the right end face of the female template.

10. The shower head back cover injection mold according to claim 1, characterized in that: The ejection mechanism includes two connecting seats arranged front and rear, the connecting seats being disposed between the left plate and the male template; a push plate, slidably disposed between the left plate and the male template, the push plate being located between the two connecting seats, and a base plate being disposed on the left end face of the push plate; and several ejection guide posts, the ejection guide posts being disposed between the left plate and the male template, the ejection guide posts penetrating the base plate and the push plate, and a return spring being disposed between the push plate and the male template and located outside the ejection guide post; A plurality of ejector pins, one end of which is disposed on the push plate, and the other end of which passes through the male mold plate and engages with the male mold core.

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