Shower head injection mold

Abstract

The utility model relates to a shower nozzle injection mold, it includes die holder and mould core, the mould core has the cavity and is loaded into the die holder, the die holder is provided with first core -pulling mechanism and second core -pulling mechanism Second core -pulling mechanism includes second oil cylinder, second sliding seat and second sliding block, the second sliding seat sets up core -pulling slide rail, and the second sliding block is through core -pulling slide rail and second sliding seat sliding connection, the second sliding block sets up sliding block guide rail, and is through the sliding block guide rail and second guide block sliding connection, and the second guide block is fixed in the die holder, the core -pulling slide rail and sliding block guide rail are all die holder's bottom plate direction inclination setting, and distribute in the plane perpendicular to each other, to drive the second sliding block along specific direction carries out the core -pulling displacement. The utility model utilizes the structure of sliding connection in turn to realize the sliding core -pulling displacement of second slide rail, also changed the driving direction of second core -pulling slide rail, calmly greatly reduces the volume of second core -pulling mechanism, also reduces the mould concrete.

Description

Technical Field

[0001] This utility model relates to the field of molds for shower head manufacturing, and in particular to a shower head injection mold. Background Technology

[0002] like Figure 1 The shower head housing A shown has an integrally connected handle and a shower head. The handle is a hollow tubular body, specifically: the handle has a hollow cavity A1; the section connecting the handle and the shower head has a functional cavity A2; and the shower head has a hole A3, which is located away from the handle. In this shower head housing structure, the functional cavity A2 is quite deep, making it impossible to achieve a one-time machining using the existing core-pulling structure of the hollow cavity A1; therefore, a separate design is required.

[0003] According to the design of the existing core-pulling mechanism, the core needs to be pulled at an angle towards the base plate. That is, the power source cylinder or air cylinder in the core-pulling mechanism needs to be installed on the outside of the base plate. At the same time, the volume of the mold itself also needs to be increased. Obviously, the traditional core-pulling structure increases the processing and manufacturing cost of the mold, and the actual mold opening and core pulling is more difficult, resulting in a reduction in product processing efficiency and product quality.

[0004] In summary, how to achieve core-pulling forming of hollow cavity A1, functional cavity A2 and hole A3 while reducing costs, improving processing efficiency and product quality is one of the technical problems that those skilled in the art need to solve. Utility Model Content

[0005] The purpose of this utility model is to provide a shower head injection mold.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A shower head injection mold includes a mold frame and a mold core, wherein the mold core has a cavity and is installed in the mold frame, and the mold frame is provided with a first core pulling mechanism and a second core pulling mechanism. The second core-pulling mechanism includes a second hydraulic cylinder, a second slide block, and a second slider, wherein: The second slide block is provided with a core-pulling slide rail, and the second slider is slidably connected to the second slide block through the core-pulling slide rail; The second slider is provided with a slider guide rail and is slidably connected to the second guide block through the slider guide rail. The second guide block is fixed inside the mold frame. The core-pulling slide rail and the slider guide rail are inclined in the direction of the base plate of the mold frame and distributed on mutually perpendicular planes to drive the second slider to perform core-pulling displacement in a specific direction. A further preferred embodiment: the second hydraulic cylinder is fixed to the outside of the mold frame and is set perpendicular to the mold opening direction of the mold frame.

[0007] A further preferred embodiment: the core-pulling slide rail and the slider guide rail are both inclined in a direction away from the cavity and towards the bottom plate of the mold frame.

[0008] A further preferred embodiment: the second slide is fitted with a second locking block, the second locking block is connected to the upper template of the mold frame and driven by the upper template, and can be inserted to lock or disengage to unlock.

[0009] A further preferred embodiment: the first core-pulling mechanism includes a first hydraulic cylinder and a first slider, wherein: The first hydraulic cylinder is installed at an angle on the outside of the mold frame and is connected to the first slider; The first slider is driven by the first hydraulic cylinder and moves towards the bottom plate of the mold frame for core pulling.

[0010] A further preferred embodiment: a first locking block is inserted into the first slider, the first locking block is connected to the upper template of the mold frame, and is driven by the upper template to be inserted and locked or disengaged and unlocked.

[0011] A further preferred embodiment includes a third core-pulling mechanism, which is assembled within the mold frame and includes a third drive block and a third slider, wherein: The third drive block is inserted into the third slider; The third drive block is connected to the top plate of the mold frame and is driven by the top plate to disengage from the third slider, thereby driving the third slider to slide and pull the core.

[0012] A further preferred embodiment: the two second guide blocks are symmetrically distributed and are slidably connected to the slider through slider guide rails on both sides of the second slider, forming a sliding guide structure that clamps the second slider.

[0013] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: This utility model relates to three core-pulling mechanisms. The second core-pulling mechanism is specifically designed for forming the functional cavity of a shower head housing. In this mechanism, a second hydraulic cylinder drives a second slide block to slide. The second slide block is equipped with an inclined core-pulling rail. A second slider is slidably connected to the second slide block via the core-pulling rail. The second slider is equipped with a slider guide rail, which is slidably connected to a second guide block. Both the core-pulling rail and the slider guide rail are inclined grooves, respectively located on two mutually perpendicular planes, thus restricting the second slider to slide and pull the core in a specific direction. This utility model utilizes a sequentially sliding connection structure to achieve the sliding core-pulling displacement of the second slide rail, also changing the driving direction of the second core-pulling rail. This significantly reduces the volume of the second core-pulling mechanism and the mold, thereby lowering mold manufacturing costs and facilitating transportation and storage. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the pre-formed shower head shell structure of the shower head injection mold described in this embodiment of the utility model; Figure 2 This is a three-dimensional structural schematic diagram of the shower head injection mold described in this embodiment of the utility model; Figure 3 This is a front view of the structure of the shower head injection mold described in this embodiment of the utility model; Figure 4 This is a schematic diagram of the internal structure of the shower head injection mold described in this embodiment of the utility model; Figure 5 This is a side view of the structure of the shower head injection mold described in this embodiment of the utility model; Figure 6 This is a three-dimensional structural schematic diagram of the first core-pulling mechanism and the second core-pulling mechanism in an embodiment of this utility model; Figure 7 This is a structural front view of the first core-pulling mechanism and the second core-pulling mechanism in this embodiment of the present invention; Figure 8 This is a structural side view of the first core-pulling mechanism and the second core-pulling mechanism in an embodiment of this utility model; Figure 9 This is a schematic diagram of the structure of the second slider in an embodiment of this utility model.

[0015] The markings on the accompanying drawings in the above specification are explained as follows: A. Shower head housing; A1. Hollow cavity; A2. Functional cavity; A3. Hole position; 110. Top slab; 120. Upper formwork; 210. Base plate; 220. Ejection mechanism; 221. Ejection plate assembly; 222. Angled ejector; 230. Square iron; 240. Lower formwork; 300. First core-pulling mechanism; 310. First hydraulic cylinder; 320. First slider; 330. First locking block; 400, Second core-pulling mechanism; 410, Second hydraulic cylinder; 420, Second slide block; 430, Second slider; 421, Core-pulling slide rail; 431, Molding block; 432, Slider guide rail; 440, Second guide block; 510, Third drive block; 520, Third slider; 600, Second locking block; 710. Upper mold core; 720. Lower mold core. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] It should be noted that in this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element of this utility model must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Example like Figure 2 As shown, this utility model discloses a shower head injection mold, which is specifically used for... Figure 1 The shower head housing is used for injection molding. For example... Figure 1 The shower head housing A has a functional cavity A2. Due to the structural design characteristics of the shower head housing, this functional cavity A2 cannot be formed in one go with the hollow cavity A1 of the handle, and requires independent core-pulling processing. This invention designs a second core-pulling mechanism 400 to realize the core-pulling forming of the functional cavity A2. It can realize the core-pulling operation of the functional cavity A2 within a limited mold space. Through the sliding structure of the second slide block and the second slider, it realizes the conversion of the core-pulling direction, thereby greatly reducing the stroke of the core-pulling operation and reducing the mold volume.

[0019] like Figures 1 to 4 As shown, the shower head injection mold includes a mold frame and a mold core. The mold frame includes an upper mold assembly and a lower mold assembly capable of relative displacement to achieve mold closing and opening. The mold core includes an upper mold core 710 and a lower mold core 720, which are respectively assembled in the upper and lower mold assemblies and driven by the upper and lower mold assemblies to perform mold closing and opening. The upper and lower mold cores 710 and 720 have molding grooves adapted to the shower head housing A on their mating surfaces. When the upper and lower mold cores 720 are driven to close, the two molding cavities are aligned to form a cavity adapted to the shower head housing A. The upper mold assembly is provided with an injection channel communicating with the cavity to introduce liquid material, allowing the liquid material to cool and solidify in the cavity, and then the molding process is achieved during mold opening.

[0020] like Figures 1 to 4As shown, the upper module includes a stacked top plate 110 and an upper template 120. The upper template 120 has a groove facing away from the top plate 110, and the upper mold core 710 is fitted into the groove of the upper template 120. The lower module includes a bottom plate 210, an ejection mechanism 220, square irons 230, and a lower template 240. Two square irons 230 are connected to the bottom plate 210 and are symmetrically distributed. The lower template 240 is fixed to the two square irons 230. The lower template 240, the two square irons 230, and the bottom plate 210 enclose an ejection space, and the ejection plate assembly 221 is installed within the ejection space. The lower template 240 has a groove on the side facing away from the bottom plate 210, and the lower mold core 720 is fitted into the groove of the lower template 240. Specifically, the ejection mechanism 220 includes an ejection plate assembly 221 and ejector pins. The ejection plate assembly 221 is placed in the ejection space and can be driven to eject from the bottom plate 210 towards the lower mold plate 240. The ejector pins are fixed on the ejection plate assembly 221 so that the ejection plate assembly 221 can drive the shower head housing A after mold opening to be ejected from the lower mold core 720. In this embodiment, the ejector pins include angled ejectors 222.

[0021] For application such as Figure 1 The structural features of the shower head housing A (hollow cavity A1, functional cavity A2, and hole position A3) necessitate the design of three core-pulling mechanisms. Specifically: a first core-pulling mechanism 300 is designed to fit the hollow cavity A1 of the handle portion of the shower head housing A; a second core-pulling mechanism 400 is designed to fit the functional cavity A2 of the shower head housing; and a third core-pulling mechanism is designed to accommodate the hole position A3 of the shower head housing A.

[0022] like Figure 3 and Figure 4As shown, the first core-pulling mechanism 300 is an oblique core-pulling mechanism. Its overall core-pulling displacement direction is not perpendicular to the side wall of the lower mold plate as is typical for mold systems; instead, it forms an acute angle with the side wall of the lower mold plate. That is, the axis of the first core-pulling mechanism is not perpendicular to the mold opening direction but is inclined according to the shower head structure, used to form the hollow cavity A1 of the handle portion. Specifically, the first core-pulling mechanism 300 includes a first hydraulic cylinder 310 and a first slider 320. The first hydraulic cylinder 310 is mounted on the side wall of the lower mold plate 240 via a fixing bracket. The driving end of the first hydraulic cylinder 310 is connected to the first slider 320, driving the first slider 320 to slide and pull during mold opening or to reset during mold closing. It should be noted that the first slider 320 has a first locking hole along the mold opening direction, and a first locking block 330 is inserted into the first locking hole to lock the first slider 320, thereby locking the first hydraulic cylinder 310. This ensures that the first slider 320 will not affect the quality of the shower head housing A due to small displacement when the mold is closed. Specifically, the first locking block 330 is connected to the upper mold plate 120. When the upper mold assembly drives the upper mold core 710 to separate from the lower mold assembly to open the mold, the first locking block 330 is simultaneously driven to be pulled out from the first locking hole, thereby releasing the restriction on the first slider 320. After the first locking block 330 is released, the first hydraulic cylinder 310 can drive the first slider 320 to perform core pulling displacement, realizing the forming operation of the hollow cavity A1 of the shower head housing.

[0023] The second core-pulling mechanism 400 is installed at the lower template 240 and the lower mold core 720, and is used to adapt to the design of the functional cavity A2 in the shower head housing. The second core-pulling mechanism 400 includes a second hydraulic cylinder 410, a second slide block 420, and a second slider 430. The second hydraulic cylinder 410 is fixed to the outside of the lower template 240, and it and the first hydraulic cylinder 310 are respectively designed on different side walls of the lower template 240 (see...). Figure 2 As shown), Figure 5 As shown, the second hydraulic cylinder 410 is arranged perpendicular to the outer side of the lower template 240.

[0024] Specifically: such as Figure 6 , Figure 7 and Figure 8As shown, the driving end of the second hydraulic cylinder 410 is connected to the second slide block 420. The second slide block 420 is slidably mounted inside the lower template 240. The second slide block 420 is driven by the second hydraulic cylinder 410 to slide within the lower template 240, realizing sliding core pulling and sliding reset. It should be noted that the second slide block 420 is provided with a core pulling slide rail 421, which is inclined towards the bottom plate in the direction away from the cavity. The second slider 430 is slidably connected to the second slide block 420 through the core pulling slide rail 421. Specifically, the second slider 430 is slidably mounted at the core pulling slide rail 421 and slides along the direction of the core pulling slide rail 421. That is, when the second hydraulic cylinder 410 drives the second slide block 420 to perform core pulling displacement, the second slider 430 slides inclined towards the bottom plate 210.

[0025] It should be noted that: Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, a slider guide rail 432 is provided on the side of the second slider 430, and the second slider 430 is slidably connected to the second slide block 420 through the slider guide rail 432. Specifically, the slider guide rail 432 is a guide groove, and the second slider 430 is a sliding member, which is slidably connected to the second guide block 440 through the slider guide rail 432. The second guide block 440 is fixedly installed on the lower template 240. The slider guide rail 432 is also inclined towards the bottom plate in the direction away from the cavity. However, it should be noted that the slider guide rail 432 and the core-pulling slide rail 421 are respectively set on two mutually perpendicular planes, that is, under the synchronous drive of the inclined core-pulling slide rail 421 and the slider guide rail 432, the second slider 430 is pulled out in the lower template 240 along the axial direction of the functional cavity A2 (in this embodiment, the functional cavity A2 is a cylindrical cavity, and the axial direction is the direction of the central axis of the functional cavity A2), realizing the core-pulling displacement of the second slider 430. In summary, in the second core-pulling mechanism 400, the second slide block 420 is slidably connected to the second slider 430 through the inclined core-pulling slide rail 421, and the second slider 430 is slidably connected to the second guide block 440 through the inclined slider guide rail 432, so as to restrict the second slider 430 from being pulled out and formed along the axial direction of the shower head housing functional cavity A2.

[0026] To elaborate: such as Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, a sliding protrusion is provided on the second guide block 440. The sliding protrusion is inserted into the slider guide rail 432 and slides back and forth along the direction of the slider guide rail 432. The second guide block 440 is fixed in the lower template 240, that is, the second slider 430 is in a relatively fixed state and the second slider 430 performs relative sliding displacement. Preferably, in order to ensure the stability of the second slider 430 during the sliding core pulling and sliding reset process, the second guide blocks 440 are symmetrically arranged on both sides of the second slider 430, that is, the second slider 430 is designed to be clamped by two second guide blocks 440.

[0027] To elaborate further: such as Figure 9 As shown, the second slider 430 includes an integrally connected block 431, i.e., the second slider body. The block 431 is a columnar block protruding from the second slider body, which extends into the cavity and is adapted to the functional cavity A2. The second slider 430 drives the block 431 to disengage from the cavity for the purpose of core pulling displacement. The slider guide rail 432 is opened on the side of the second slider body.

[0028] It should be noted that: Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, both the core-pulling slide rail 421 and the slider guide rail 432 are straight grooves.

[0029] like Figure 8 As shown, a second locking block 600 is designed to lock the second slide block 420 and simultaneously lock the second slider 430. The second locking block 600 is driven by the upper template 120 to insert into the second locking hole of the second slide block 420, thereby locking the second slide block 420 and the second slider 430 in the mold-closed state, ensuring the machining accuracy of the shower head housing A. Specifically, the second locking hole is opened at the end of the second slide block 420 near the second oil cylinder 410. In the mold-closed state, the second locking block 600 is inserted into the second locking hole. After the mold opens, the upper template 120 drives the second locking block 600 to disengage from the second locking hole to release the lock.

[0030] like Figure 4 As shown, the third core-pulling mechanism is assembled in the upper module and includes a third drive block 510 and a third slider 520. The third drive block 510 is locked on the top plate 110. During the pre-mold opening process of the upper module (i.e., the top plate 110 and the upper template 120 are relatively separated), the top plate 110 drives the third drive block 510 to perform mold opening displacement. The third slider 520 is slidably installed on the upper template 120, and its forming section extends into the cavity. The third slider 520 is driven by the third drive block 510 to perform core-pulling displacement to process the hole A3 of the shower head housing.

[0031] The demolding process of a shower head injection mold described in this embodiment is as follows: Step 1: Pre-mold opening: In this step, the top plate 110 separates from the upper template 120, thereby driving the third sliding mechanism in the third core-pulling mechanism to perform core-pulling operations; Step 2: Mold making: In this step, the top plate 110 and the upper template 120 are separated from the lower mold assembly and the lower mold core 720 simultaneously to achieve mold opening. It should be noted that at this time, the upper template 120 simultaneously drives the first locking block 330 and the second locking block 600 to disengage from the first slider 320 and the second slide block 420 respectively, thereby releasing the locking state of the first slider 320 and the second slide block 420.

[0032] Step 3: Core Removal In this step, the first and second oil cylinders 410 respectively drive the first slider 320, the second slide block 420, and the second slider 430 to perform core pulling operations, which are adapted to the forming and processing operations of the hollow cavity A1 and the functional cavity A2 of the shower head housing A. Step 4: Eject: In this step, after the core is pulled out, the ejector plate 221 drives the ejector pin to remove the formed shower head shell from the mold core, thus completing the demolding of the shower head shell A.

[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A shower head injection mold, characterized in that: It includes a mold frame and a mold core, the mold core having a cavity and being installed in the mold frame, the mold frame being provided with a first core-pulling mechanism and a second core-pulling mechanism; The second core-pulling mechanism includes a second hydraulic cylinder, a second slide block, and a second slider, wherein: The second slide block is provided with a core-pulling slide rail, and the second slider is slidably connected to the second slide block through the core-pulling slide rail; The second slider is provided with a slider guide rail and is slidably connected to the second guide block through the slider guide rail. The second guide block is fixed inside the mold frame. The core-pulling slide rail and the slider guide rail are inclined in the direction of the base plate of the mold frame and distributed on mutually perpendicular planes to drive the second slider to perform core-pulling displacement in a specific direction.

2. The shower head injection mold according to claim 1, characterized in that: The second hydraulic cylinder is fixed to the outside of the mold frame and is set perpendicular to the mold opening direction of the mold frame.

3. The shower head injection mold according to claim 1, characterized in that: The core-pulling slide rail and the slider guide rail are both inclined in a direction away from the cavity and towards the bottom plate of the mold frame.

4. The shower head injection mold according to claim 1, characterized in that: The second slide is fitted with a second locking block, which is connected to the upper template of the mold frame and driven by the upper template to lock or unlock.

5. The shower head injection mold according to claim 1, characterized in that: The first core-pulling mechanism includes a first hydraulic cylinder and a first slider, wherein: The first hydraulic cylinder is installed at an angle on the outside of the mold frame and is connected to the first slider; The first slider is driven by the first hydraulic cylinder and moves towards the bottom plate of the mold frame for core pulling.

6. The shower head injection mold according to claim 5, characterized in that: The first slider is fitted with a first locking block, which is connected to the upper template of the mold frame and is driven by the upper template to lock or unlock.

7. The shower head injection mold according to claim 1, characterized in that: It also includes a third core-pulling mechanism, which is assembled inside the mold frame and includes a third drive block and a third slider, wherein: The third drive block is inserted into the third slider; The third drive block is connected to the top plate of the mold frame and is driven by the top plate to disengage from the third slider, thereby driving the third slider to slide and pull the core.

8. The shower head injection mold according to claim 1, characterized in that: The two second guide blocks are symmetrically distributed and are slidably connected to the slider through the slider guide rails on both sides of the second slider, forming a sliding guide structure that clamps the second slider.

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