Shower body mold and mold opening method

Abstract

The application discloses a shower body mold and a mold opening method. The mold comprises a front mold plate, a push plate and a rear mold plate. The front mold plate is provided with a front mold core. The push plate is provided with a rear mold core. The rear mold plate is provided with a rear mold insert extending into the rear mold core. The front mold core, the rear mold core and the rear mold insert form a mold cavity when closed. The mold further comprises a multi-position linkage inner shrinkage demolding device and a continuous driving demolding device in the mold. The opening method comprises the following steps: S1: mold opening, both side cores are synchronously shrunk to demold; S2: the ejector plate continuously performs two-stage action, the first stage pushes out the push plate, the head core and the tail core are synchronously shrunk to demold; the second stage pushes out the inclined ejector rod, four corner cores are synchronously shrunk to demold and the product is pushed out. The application realizes the demolding of the side inner undercut area, the continuous demolding of the head-tail inner undercut area and the four-corner inner undercut area, realizes the core-pulling demolding of the whole-circle inner undercut area, is simple, stable and efficient, and realizes the multi-area continuous non-interference demolding effect in a narrow space.

Description

Technical Field

[0001] This invention relates to the field of mold technology, specifically to a shower head body mold and a mold opening method. Background Technology

[0002] Showerheads are common bathroom products in homes. The showerhead body is produced using a specialized injection molding mold. The mold typically includes a moving mold plate, a fixed mold plate, a moving mold core, a fixed mold core, and a slider. During molding, all components are first assembled to form a mold cavity. Then, molten plastic is injected into the mold cavity through a gating system. After pressure holding, shrinkage, and cooling, the plastic solidifies. Finally, the mold is opened to separate the finished product. Currently, to facilitate demolding, the structure of the showerhead body is designed to be as simple as possible, especially avoiding internal undercut structures. This significantly limits the diversity of one-piece showerhead body designs.

[0003] Currently, standard showerheads have a circular body with a circular head containing a circular assembly hole. With rising living standards and a growing pursuit of product innovation, square showerheads have emerged. These square bodies have a square head with a circular assembly hole, creating an inner undercut edge that serves as a transition between the square and circular shapes and forms an internal undercut structure. This current showerhead design cannot be molded in one piece using existing molds; it requires separate molding and subsequent assembly.

[0004] In view of this, the applicant in this case has conducted in-depth research on the above issues and proposed a shower head body mold and a mold opening method. Summary of the Invention

[0005] The purpose of this invention is to provide a shower head body mold and a mold opening method to achieve the effect of one-time molding of an irregularly shaped shower head body with an inverted internal structure.

[0006] To achieve the above objectives, the solution of the present invention is:

[0007] A shower head body mold includes a front mold plate, a push plate and a rear mold plate. The front mold plate is provided with a front mold core, the push plate is provided with a rear mold core, and the rear mold plate is provided with a rear mold insert that extends into the rear mold core. The front mold core, the rear mold core and the rear mold insert are closed to form a mold cavity. The mold also includes a multi-position linkage internal retraction demolding device and an in-mold continuous drive demolding device.

[0008] The multi-position linkage internal retraction demolding device includes a first sliding member, a second sliding member, a third sliding member, and a side core; the first sliding member extends forward and backward through the push plate, and its front end is fixed to the front template; the third sliding member extends forward and backward through the rear mold insert; the second sliding member is positioned on the rear template to limit movement in the forward and backward direction, and is located at the rear end between the first and third sliding members; the second sliding member is slidably connected to the first and third sliding members using a wedge mechanism; the side core is slidably connected to the front end of the third sliding member using a wedge mechanism.

[0009] The in-mold continuous drive demolding device includes an ejector pin mechanism, an internal retraction mechanism, and an inclined ejector mechanism; the ejector pin mechanism includes an ejector plate, an ejector pin, a reset core, and a reset sleeve; the reset sleeve is mounted on the rear mold plate, the reset core is movably mounted inside the reset sleeve, and the front end of the reset core extends out of the reset sleeve and abuts against the push plate; the rear end of the ejector pin is mounted on the ejector pin plate, and the front end extends into the rear end of the reset core; the reset core is equipped with a pin for limiting the movement of the ejector pin, and the reset sleeve has a pin groove for the outward movement of the pin; the internal retraction mechanism... It includes a head slide and a tail slide, which are slidably connected to the side of the rear mold insert using a wedge mechanism. The rear ends of the head slide and the tail slide are stopped and limited by a push plate. The inclined ejector mechanism includes four inclined ejector rods distributed at the four corners. The rear end of each inclined ejector rod is adjusted to move towards the center and rests against the ejector plate. Each inclined ejector rod passes through the rear mold plate and the push plate in sequence until it reaches the front end of the rear mold insert. The front end of each inclined ejector rod is provided with a corner core.

[0010] The rear end of the reset sleeve is provided with a constricted section for limiting the reset core, and the front end of the ejector pin extends into the reset core through the constricted section.

[0011] The mating part between the ejector pin and the movable pin adopts a tapered structure with a reduced diameter facing forward, and the mating part between the movable pin and the pin groove adopts a tapered structure with a reduced diameter facing backward.

[0012] The reset core has a side groove for the movable pin, the movable pin has an adjustment limit hole, and a limit rod extending into the adjustment limit hole is provided in the side groove.

[0013] The pin groove is a tapered groove formed at the front opening of the reset sleeve. A fixing kit is stacked on the front end of the reset sleeve. The fixing kit is sleeved on the reset core. The front end of the reset core has a flange that resists the fixing kit.

[0014] The rear end of the head guide member is horizontally positioned, and a horizontal limiting part is formed on the corresponding push plate; the rear end of the tail guide member is inclined outwards and forwards, and an inclined limiting part is formed on the corresponding push plate.

[0015] An inclined guide block is fitted onto the inclined push rod, and the inclined guide block is correspondingly locked onto the push plate.

[0016] The ejector plate is provided with an adjustment groove for adjusting the rear end of the rod to move towards the center.

[0017] The mold also includes a multi-slide continuous demolding device, which includes a slider and a shovel arranged adjacent to each other. The outer end of the slider is connected to a hydraulic cylinder mechanism that drives it to slide in the inward and outward directions. The inner end of the slider is connected to a slide insert. The inner end of the shovel is connected to a lower hole slide and a lower thread slide via a wedge mechanism. A time-delay linkage mechanism is provided between the shovel and the slider, in which the slider delays and drives the shovel to slide together.

[0018] The time-delay linkage mechanism includes a passive unit on the shovel and an active unit on the slider; the passive unit includes a passive inner limit part and a passive outer limit part that are set with an inner and outer distance, and the active unit includes an active inner limit part and an active outer limit part located between the passive inner limit part and the passive outer limit part.

[0019] The outer end of the shovel forms the passive inner limiting part, and the inner end of the slider is located behind the shovel to form the active inner limiting part; the outer end of the shovel is connected to a delay rod, the end of the delay rod protrudes to form the passive outer limiting part, and the slider has an active limiting part that slides back and forth along the delay rod and is limited by the passive limiting part.

[0020] The slider is installed in the slider seat, and the slider seat is provided with a guide groove for the slider to slide back and forth; the hydraulic cylinder mechanism is provided with a hydraulic cylinder joint, and the rear end of the slider forms a joint movable groove, in which the hydraulic cylinder joint is movably installed; a self-locking block is movably installed on the side wall of the joint movable groove, and a self-locking groove matching the self-locking block is provided on the inner side wall of the slider seat.

[0021] The mold also includes a front demolding device located within the front template and a panel located on the front side of the front template. An opening and closing buffer mechanism is provided between the front template and the panel. The front demolding device includes an upper hole sliding member, a first guide slide, an upper thread sliding member, and a second guide slide. The rear ends of the upper hole sliding member and the upper thread sliding member extend obliquely into the front mold core. The upper hole sliding member is connected to the first guide slide through a wedge mechanism, and the upper thread sliding member is connected to the second guide slide through a wedge mechanism. The front ends of both the first and second guide slides are connected to the panel.

[0022] The rear end of the first guide slide is provided with a first guide block for guiding the upper hole sliding component, and the rear end of the second guide slide is provided with a second guide block for guiding the upper thread sliding component.

[0023] The opening and closing buffer mechanism includes several urethane rubber groups and several buffer spring groups that abut against the front template and the panel.

[0024] A method for creating a shower head body mold, comprising the following steps:

[0025] S1: Mold opening, cores on both sides simultaneously shrink inward to pull out the core and demold;

[0026] S2: The ejector plate moves in two stages. In the first stage, the ejector plate is ejected, and the head core and tail core retract inward to pull the core and demold. In the second stage, the angled ejector pin is ejected, and the four corner cores are simultaneously ejected at an angle to pull the core and demold, and eject the product.

[0027] In step S1, the specific steps for the simultaneous inward shrinkage and core removal of the two cores are as follows: the rear template and push plate open the mold backward, the front template drives the first sliding member to slide forward, and with the cooperation of the wedge mechanism of the second sliding member, it drives the third sliding member to slide backward, and finally drives the two cores to shrink inward synchronously, so as to realize the core removal and core removal of the two cores of the shower body.

[0028] In step S2, the ejector plate operates in two stages. The ejector plate moves forward, and the ejector mechanism, the inward retraction mechanism, and the inclined ejector mechanism work together to perform two stages of demolding: In the first stage, the ejector plate drives the ejector pins forward, which in turn drives the push plate to move forward via the reset core. The rear mold insert on the rear mold plate moves backward relatively. With the cooperation of the inclined wedge mechanism, the head slide and the tail slide are both retracted inward, and the head core and the tail core retract inward simultaneously to demold. In the second stage, the ejector plate continues to move forward, the ejector pins pass through the reset core and continue to move forward, the four inclined ejector rods tilt forward and move forward, and the four sets of corner cores move forward and inward simultaneously to demold, realizing the four corner inclined ejector demolding and ejecting the shower head body.

[0029] In step S1, before the mold is opened and the cores on both sides are simultaneously pulled inward to remove the cores, the cores at the tail cavity, the tail mounting hole, and the threaded section are pulled in a coordinated manner to remove the cores. The specific steps are as follows: the hydraulic cylinder mechanism continues to drive the slider to move outward at an angle; in the first stage, the slider drives the sliding insert to remove the cores from the tail cavity; after the sliding insert is removed, as the hydraulic cylinder mechanism continues to drive the slider and the shovel to move outward synchronously, with the cooperation of the wedge mechanism, the lower hole sliding part and the lower threaded sliding part are pulled out at an angle from the mounting hole and the threaded section, respectively.

[0030] In step S1, during the mold opening process, the front template and the panel open relative to each other, and the first guide slide and the second guide slide move forward relative to each other with the panel. Under the action of the wedge mechanism, the upper hole sliding component is driven to be pulled out obliquely from the upper opening and the upper thread sliding component is pulled out obliquely from the upper thread section of the thread section, thus completing the front synchronous core pulling demolding.

[0031] After adopting the above solution, the beneficial effects of the shower body mold and mold opening method of the present invention compared with the prior art are as follows: The mold of the present invention is specifically applied to the production and demolding of shower bodies with internal undercut structures. The entire circle of the shower body's internal undercut area is divided into side internal undercut area, head and tail internal undercut area, and four corner internal undercut area according to different structures. The present invention ingeniously designs a multi-position linkage internal retraction demolding device and an in-mold continuous drive demolding device. Using the multi-position linkage internal retraction demolding device, the side internal undercut area is demolded simultaneously during the mold opening stage of the front and rear templates. Then, with the help of the in-mold continuous drive demolding device, the head and tail internal undercut area and the four corner internal undercut area are continuously demolded in two stages. The demolding operation of the entire circle of internal undercut area is simple, stable, and efficient, achieving a multi-area continuous demolding effect without interference in a narrow space. Attached Figure Description

[0032] Figure 1 This is a front view of the shower head body mold of the present invention;

[0033] Figure 2 yes Figure 1 A sectional view;

[0034] Figure 3 This is a schematic diagram of the shower head body. Figure 1 ;

[0035] Figure 4 This is a schematic diagram of the shower head body. Figure 2 ;

[0036] Figure 5 This is a schematic diagram of the structure of a multi-position linkage internal shrinkage demolding device;

[0037] Figure 6 yes Figure 5 Exploded view;

[0038] Figure 7 This is a cross-sectional view of the multi-position linkage internal retraction demolding device inside the mold;

[0039] Figure 8 This is a schematic diagram of the structure of an in-mold continuous drive demolding device;

[0040] Figure 9 yes Figure 8 Exploded view;

[0041] Figure 10 This is another schematic diagram of an in-mold continuous drive demolding device;

[0042] Figure 11 A cross-section of an in-mold continuous drive demolding device. Figure 1 ;

[0043] Figure 12 for Figure 11 A magnified view of part A;

[0044] Figure 13 for Figure 11 A magnified view of part B;

[0045] Figure 14 A cross-section of an in-mold continuous drive demolding device. Figure 2 ;

[0046] Figure 15 This is a front view of the novel multi-row continuous demolding device;

[0047] Figure 16 yes Figure 15 A sectional view;

[0048] Figure 17 This is a schematic diagram of the internal structure of a multi-row continuous demolding device;

[0049] Figure 18 This is another sectional view of the multi-row continuous demolding device;

[0050] Figure 19 This is a schematic diagram of the front demolding device;

[0051] Figure 20 This is another schematic diagram of the front demolding device;

[0052] Figure 21 This is a structural diagram of the front template.

[0053] Label Explanation

[0054] Front template 100, push plate 200, push plate through groove 201, first limiting part 202, second limiting part 203, rear template 300, recess 301, elongated hole 302, limiting block 302, front mold core 400, rear mold core 500, rear mold insert 600, insert through groove 601, mold cavity 700, bottom plate 801, protective side plate 802, guide rod assembly 803, panel 804, heat insulation plate 805; shower body 900, circular hole 901, side inner undercut area 902, head inner undercut area 903, tail inner undercut area 904, four corner inner undercut areas 905, side opening 906, threaded section 907, assembly hole 908;

[0055] Multi-position linkage internal shrinkage demolding device 1, first sliding part 11, second sliding part 12, inclined wedge mechanism 121 / 122, relief groove 123, limiting edge 124, third sliding part 13, sliding body 131, lower inclined wedge joint 132, side core 14, inclined wedge mechanism 141.

[0056] The mold includes an in-mold continuous drive demolding device 2, an ejector mechanism 22, an ejector plate 220, an ejector plate surface 2201, an ejector base plate 2202, an adjusting groove 2203, an ejector pin 221, a reset core 222, a side groove 2221, a flange 2222, a reset sleeve 223, a pin groove 2231, a necking section 2232, an inner necking mechanism 23, a head sliding component 231, a wedge mechanism 2311, a tail sliding component 232, a wedge mechanism 2321, a movable pin 224, an adjusting hole 2241, an inclined ejector mechanism 24, an inclined ejector rod 241, a corner core 2411, an inclined ejector guide block 2412, an inclined ejector seat 2413, a limiting rod 225, and a fixing kit 226.

[0057] Multi-slide continuous demolding device 3, slider 31, inner end 311, mating part 312, joint movable groove 313, self-locking block 314, shovel 32, inclined wedge mechanism 321, outer end 322, delay rod 323, flange 3231, hydraulic cylinder mechanism 33, hydraulic cylinder joint 331, slide insert 34, lower hole slide part 35, lower thread slide part 36, slider seat 37, guide groove 371, self-locking groove 372, wear-resistant part 38; opening and closing buffer mechanism 4, urethane rubber group 41, buffer spring group 42;

[0058] Front demolding device 5, upper hole sliding member 51, upper threaded sliding member 52, second guide slide 53, inclined wedge mechanism 531, second guide block 54. Detailed Implementation

[0059] The following detailed explanation of the specific implementation method will be provided.

[0060] This case involves a shower head body mold, such as Figure 1-2 As shown, the mold mainly includes a front mold plate 100, a push plate 200, and a rear mold plate 300. The front mold plate 100 has a front mold core 400, the push plate 200 has a rear mold core 500, and the rear mold plate 300 has a rear mold insert 600 that extends into the rear mold core 500. In the closed state, the front mold core 400, the rear mold core 500, and the rear mold insert 600 are closed to form a mold cavity 700. In practical applications, the front mold plate 100, the push plate 200, and the rear mold plate 300 are arranged in a front-to-back configuration, i.e., corresponding to... Figure 1-2 The up and down directions in the middle.

[0061] Shower head body 900 Figure 3-4As shown, the overall shape is square, and the water outlet is formed by a circular hole 901 through a one-piece molded inner undercut edge. The one-piece molded inner undercut edge is a closed-loop structure with irregular dimensions. In order to achieve effective demolding of the one-piece inner undercut edge, the present invention divides the inner undercut edge into three groups of eight areas: the first group consists of two side inner undercut areas 902 corresponding to the two sides; the second group consists of head inner undercut areas 903 and tail inner undercut areas 904 on the head and tail sides; and the third group consists of four corner inner undercut areas 905 corresponding to the four corners. An upper opening 906 is formed on the back of the shower body 900 near the head end. The shower body 900 has a tail 907, on which an assembly hole 908 and a threaded section 909 are formed. The core-pulling direction of the tail 907 is perpendicular to the core-pulling direction of the assembly hole 908 and the threaded section 909.

[0062] The main innovation of this invention lies in its effective demolding of the undercut edges of the entire inner circumference of the shower head body. The mold mainly includes a multi-position linkage inward retraction demolding device 1 and an in-mold continuous drive demolding device 2.

[0063] The multi-position linkage internal shrinkage demolding device 1, such as Figure 5-7 As shown, it is located between the front template 100, the push plate 200, and the rear template 300 of the mold. The multi-position linkage internal retraction demolding device 1 is used to achieve effective demolding of the two side internal undercut areas 902. In order to achieve synchronous demolding of the two side internal undercut areas 902, the multi-position linkage internal retraction demolding device 1 is provided with two symmetrical sets.

[0064] The multi-position linkage internal retraction demolding device 1 includes a first sliding member 11, a second sliding member 12, a third sliding member 13, and a side core 14. The first sliding member 11 extends forward and backward through the push plate 200, and the push plate 200 has a push plate through groove 201 for the first sliding member 11 to pass through. The front end of the first sliding member 11 ( Figure 5 The upper end of the middle part is fixed to the front template 100. The third row position member 13 extends back and forth and passes through the rear mold insert 600. The rear mold insert 600 has an insert through groove 601 for the third row position member 13 to pass through.

[0065] The second row of components 12 is positioned on the rear template 300 in the front-back direction. Figure 7The second guide member 12 is located at the rear end between the first guide member 11 and the third guide member 13. The left and right sides of the second guide member 12 are slidably connected to the first guide member 11 and the third guide member 13 respectively via wedge mechanisms 121 / 122. The wedge mechanisms 121 / 122 are inclined in opposite directions. Specifically, with the rear mold insert 600 as the center, the first guide member 11 is positioned relatively outward, and the wedge mechanism 121 connected to the first guide member 11 is inclined from back to front inward (i.e., towards the center); the third guide member 13 is positioned relatively inward, and the wedge mechanism 122 connected to the third guide member 13 is inclined from back to front outward. The side core 14 is movably mounted on the rear mold insert 600, and the side core 14 is slidably connected to the front end of the third guide member 13 via a wedge mechanism 141. The inclined direction of the wedge mechanism 141 is inclined from back to front inward (i.e. towards the center).

[0066] like Figure 7 As shown, after the shower head body 900 is formed, the side core 14 is located within the undercut area 902 on the side of the shower head body 900. During demolding, the rear mold plate 300 and the push plate 200 open the mold backward, and the front mold plate 100 drives the first sliding member 11 forward accordingly. Figure 7 Sliding upwards, the third sliding member 13 is driven backwards by the wedge mechanism 121 / 122 of the second sliding member 12. Figure 7 The material slides downwards, ultimately causing the side core 14 to retract inwards, effectively demolding the inner undercut area 902 on the side of the shower head body. In practice, the two symmetrical sets of multi-position linkage inward retraction demolding devices 1 operate synchronously, achieving the synchronous inward retraction demolding effect of the inner undercut areas 902 on both sides of the shower head body while the mold is being opened. The multi-position linkage inward retraction demolding device 1 of this application has a simple and ingenious structural design, occupies little space, and features flexible, simple, stable, and efficient demolding operation.

[0067] The in-mold continuous drive demolding device 2, such as Figure 8-14 As shown, a push plate 200 and a rear template 300 of the mold are provided, including an ejector pin mechanism 22, an internal retraction mechanism 23 and an inclined ejector mechanism 24.

[0068] The ejector mechanism 22 is located behind the rear template 300 and includes an ejector plate 220, an ejector pin 221, a reset core 222, and a reset sleeve 223. The reset sleeve 222 extends through the rear template 300. The reset core 222 is movably disposed within the reset sleeve 223, preferably with a clearance fit to facilitate smooth movement of the reset core 222. The front end of the reset core 222 extends out of the reset sleeve 223 and abuts against the push plate 200. The rear end of the ejector pin 221 is fixed to the ejector plate 220, and the front end of the ejector pin 221 extends into the rear end of the reset core 222.

[0069] A movable pin 224 for limiting the ejector pin 221 is installed near the rear end of the reset core 222, and a pin groove 2231 for the movable pin 224 to move outward is provided at the front end of the reset sleeve 223. When the movable pin 224 is located inside the reset sleeve 223 and avoids the pin groove 2231, the movable pin 224 is restricted to an inward state, and the movable pin 224 limits the ejector pin 221. During the process of the ejector plate 220 driving the ejector pin 221 to move forward, the reset core 222 is driven to move forward synchronously through the movable pin 224. Finally, the reset core 222 drives the push plate 200 to move forward, which is the first stage. When the reset core 222 moves forward to the position where the movable pin 224 is opposite to the pin groove 2231, the movable pin 224 is pushed outward into the pin groove 2231 by the holding force of the ejector pin 221. Thus, the movable pin 224 releases its limiting effect on the ejector pin 221. At this time, the second stage begins. While the ejector plate 220 drives the ejector pin 221 to continue moving forward, the reset core 222 remains stationary, that is, the push plate 200 remains stationary.

[0070] The internal retraction mechanism 23 includes a head slide member 231 and a tail slide member 232, which are arranged opposite to each other on the rear mold insert 600. A head core is formed on the head slide member 231, and a tail core is formed on the tail slide member 232. The head slide member 231 is slidably connected to the side of the rear mold insert 600 by a wedge mechanism 2311, and the tail slide member 232 is slidably connected to the side of the rear mold insert 600 by a wedge mechanism 2321. With the rear mold insert 600 as the center, the wedge mechanism 2311 connected to the head slide member 231 is inclined from back to front inward (i.e., towards the center); similarly, the wedge mechanism 2321 connected to the tail slide member 232 is also inclined from back to front inward (i.e., towards the center). The rear ends of the head guide member 231 and the tail guide member 232 are restrained and limited by the push plate 200. Specifically, the push plate 200 is provided with a first limiting part 202 for restraining the rear end of the head guide member 231 and a second limiting part 203 for restraining the rear end of the tail guide member 232. The first limiting part 202 and the second limiting part 203 are specifically designed as wear-resistant blocks.

[0071] The inclined ejector mechanism 24 includes four inclined ejector rods 241 distributed at the four corners. The rear end of each inclined ejector rod 241 is adjustable towards the center and rests against the ejector plate 220. Specifically, the ejector plate 220 has four strip-shaped adjustment grooves 2203 extending towards the center. The rear end of each inclined ejector rod 241 rests against the adjustment groove 2203 and can be moved and adjusted within the adjustment groove 2203. Each inclined ejector rod 241 passes sequentially through the rear template 300, the push plate 200, and up to the front end of the rear mold insert 600. The front end of each inclined ejector rod 241 has a corner core 2411. To facilitate the adjustment of the inclined ejector rods 241, the through hole of the inclined ejector rod 241 through the rear template 300 is an elongated strip-shaped hole 301 extending towards the center. In addition, in order to facilitate the stability of the inclined push rod 24 during the inclined push action, an inclined push guide block 2412 is sleeved on the inclined push rod 24, and the inclined push guide block 2412 is correspondingly locked on the push plate 200.

[0072] After the shower head body 900 is molded, the head core of the head slide 231 and the tail core of the tail slide 232 are located in the head inner undercut area 903 and the tail inner undercut area 904 of the shower head body 900, respectively, and the four corner cores 2411 are located in the four corner inner undercut areas 905 of the shower head body 900. This new device uses an in-mold continuous drive demolding method to achieve continuous and effective demolding of the head, tail, and four corner inner undercut structures of the shower head body 900. During demolding, after the front and rear mold plates open, the relevant drive mechanism drives the ejector plate 220 forward. The ejector mechanism 22, the inner retraction mechanism 23, and the inclined ejector mechanism 24 cooperate to continuously perform a two-stage demolding operation:

[0073] In the first stage of operation, the ejector plate 220 drives the ejector pin 221 forward. The ejector pin 221 is limited by the movable pin 224, which simultaneously drives the reset core 222 forward. This causes the push plate 200 to move forward. Since the rear mold plate 300 remains stationary, the rear mold insert 600 on the rear mold plate 300 moves backward relatively. Under the cooperation of the wedge mechanism 2311 / 2321, the head sliding member 231 and the tail sliding member 232 both retract inward. The head core of the head sliding member 231 and the tail core of the tail sliding member 232 move out from the head inner undercut area 903 and the tail inner undercut area 904 of the shower body 900, respectively. This realizes the demolding operation of the head and tail inner undercut areas of the shower body 900.

[0074] It should be noted that when the ejector plate 220 moves forward in the first stage, the four inclined ejector rods 241 move forward simultaneously. Since the push plate 200 drives the rear mold core 500 and the shower head body 900 on it to move forward simultaneously, the relative positions between the four inclined ejector rods 241 and the shower head body 900 remain unchanged in the first stage.

[0075] In the second stage of operation, the ejector plate 220 continues to advance forward, and the movable pin 224 moves forward with the reset core 222 to the pin groove 2231. The movable pin 224 releases the limit on the ejector pin 211, and the ejector pin 211 continues to advance forward through the reset core 222 under the drive of the ejector plate 220. At this time, the push plate 200 remains stationary. Under the drive of the ejector plate 220, the four inclined ejector rods 241 tilt and move forward relative to the rear template 300 and the push plate 200. The four sets of corner cores 2411 move forward and inward, thereby moving the four sets of corner cores 2411 out from the undercut area 905 at the four corners, realizing the four-corner inclined ejector demolding and ejecting the shower head body.

[0076] The shower head body mold of this invention is ingeniously designed with a multi-position linkage internal retraction demolding device 1 and an in-mold continuous drive demolding device 2. During the demolding process, in the mold opening stage of the front and rear templates, the multi-position linkage internal retraction demolding device 1 is used to simultaneously demold the inner undercut areas 902 on both sides. Then, with the help of the in-mold continuous drive demolding device 2, the demolding is carried out in two stages to achieve the continuous demolding of the head inner undercut area 903 and tail inner undercut area 904 in the first stage, and the four corner inner undercut areas 905 in the second stage. This allows for a very smooth demolding operation of the entire inner undercut area. The mold structure design of this invention is novel and ingenious, and the operation is very simple, stable, and efficient, achieving a multi-zone continuous demolding effect without interference in a narrow space.

[0077] Preferably, in order to facilitate structural compactness and easy assembly in small spaces, such as Figure 7 The third positioning component 13 is divided into two parts: a positioning body 131 and a lower inclined wedge joint 132. The front end of the positioning body 131 forms an upper inclined wedge corresponding to the inclined wedge mechanism 141. During assembly, the positioning body 131 extends into and passes through the insert through groove 601 from the front end. The lower inclined wedge joint 132 is locked together with the rear end of the positioning body 131 by means of bolts.

[0078] Preferably, such as Figure 7 Corresponding to the design of the wedge mechanism 121 / 122, the left and right ends of the second positioning member 12 are respectively formed with a first wedge portion connected to the first positioning member 12 and a second wedge portion connected to the third positioning member 13. The second wedge portion is provided with a relief groove 123 in the middle to facilitate the assembly and locking of the lower wedge joint 132.

[0079] Preferably, such as Figure 6-7A recessed groove 301 is provided on the rear template 300, and the second sliding member 12 is correspondingly recessed into the recessed groove 301. The rear ends of the first sliding member 11 and the third sliding member 13 extend into the recessed groove 301 to form a wedge mechanism 121 / 122 with the second sliding member 12. In order to facilitate the restriction of the second sliding member 12 in the front-back direction within the recessed groove 301, limiting edges 124 are provided on both sides of the second sliding member 12, and limiting blocks 302 are provided on the rear template 300. The limiting blocks 302 press against the limiting edges 124 to achieve the restriction of the second sliding member 12 in the front-back direction.

[0080] Preferably, such as Figure 6 The side core 14 is movably connected to the rear mold insert 600 in such a way that the rear end of the side core 14 is slidably mounted on the rear mold insert 600 in a tenon joint manner.

[0081] Preferably, the ejector mechanism 21 has four sets distributed at the four corners, which facilitates the smooth pushing of the push plate 200 by the ejector mechanism 21.

[0082] Preferably, such as Figure 12 The rear end of the reset sleeve 223 is provided with a necked section 2232, which is used to limit the reset core 222 and at the same time guide the ejector pin 221. The front end of the ejector pin 221 extends into the reset core 222 via the necked section 2232.

[0083] Preferably, such as Figure 12-13 The mating part between the ejector pin 221 and the movable pin 224 adopts a tapered structure with a reduced diameter facing forward, while the mating part between the movable pin 224 and the pin groove 2231 adopts a tapered structure with a reduced diameter facing backward. When the ejector pin 211 pushes the reset core 222 forward, and the movable pin 224 moves forward with the reset core 222 to the position of the pin groove 2231, the thrust of the ejector pin 211 and the guiding effect of the tapered structure cause the movable pin 224 to automatically move into the pin groove 2231, automatically releasing the ejector pin 211 from its limiting position. Conversely, when the reset core 222 moves backward to reset, similarly, the guiding effect of the tapered structure causes the movable pin 224 to automatically retract, restoring its limiting effect on the ejector pin 211.

[0084] Preferably, such as Figure 13 The reset core 222 has a side groove 2221 for the movable pin 224 to be mounted. The movable pin 224 has an adjustment limiting hole 2241, and a limiting rod 225 extending into the adjustment limiting hole 2241 is provided in the side groove 2221. By adjusting the cooperation between the limiting hole 2241 and the limiting rod 225, the movable pin 224 can move freely within the side groove 2221 within a limited range, thereby limiting or releasing the ejector pin 211.

[0085] Preferably, such as Figure 12The pin groove 2231 is a tapered groove formed at the front opening of the reset sleeve 223. The front end of the reset sleeve 223 is provided with a fixing kit 226, which is sleeved on the reset core 222. The front end of the reset core 222 has a flange 2222 that resists the fixing kit 226.

[0086] Preferably, such as Figure 14 The shower head's inner undercut area 903 is horizontal, corresponding to the rear end of the head slide member 231 being horizontally positioned, and the first limiting part 202 being a horizontal limiting part. During demolding, the head slide member 231 retracts horizontally to complete the head demolding operation. The shower head's tail inner undercut area 904 is inclined, corresponding to the rear end of the tail slide member 232 being inclined outwards and forwards, and the second limiting part 203 being an inclined limiting part. During demolding, the tail slide member 232 retracts obliquely backwards to complete the tail demolding operation.

[0087] Preferably, such as Figure 10 The ejector plate 220 includes an ejector panel 2201 and an ejector base plate 2202 stacked on top of each other, and an adjustment groove 2203 is formed on the ejector panel 2201. An inclined ejector seat 2413 is movably installed in the adjustment groove 2203, and the rear end of the inclined ejector rod 241 is located on the inclined ejector seat 2413. The inclined ejector rod 241 is used to flexibly adjust the tilt angle of the inclined ejector rod 241.

[0088] Preferably, such as Figure 10 As shown, a base plate 801 is provided behind the ejector mechanism 21, and two protective side plates 802 are provided between the rear template 300 and the base plate 801, which facilitates the concealed internal structure of the mold and the stable operation of the ejector mechanism 21. In addition, a guide rod assembly 803 is provided between the ejector plate 220, the rear template 300 and the push plate 200, which facilitates the stable and precise operation of each device module and ensures the normal opening and closing operation of the mold.

[0089] Preferably, the mold of the present invention further includes a multi-row continuous demolding device 3 disposed on the push plate 200, used for the coordinated core-pulling demolding of the shower head body's tail 907, mounting hole 908, and threaded section 909. Figure 15-18 As shown, the multi-row continuous demolding device 3 mainly includes a slider 31 and a scraper 32 arranged adjacent to each other. Taking the position of the shower head body 900 as the inward direction and the core-pulling direction of the tail 907 as the outward direction (inward and outward directions are...), the device is designed to be integrated with the shower head body 900 as the inward direction and the core-pulling direction of the tail 907 as the outward direction. Figure 16(The left and right tilting directions in the middle). The outer end of the slider 31 is connected to a hydraulic cylinder mechanism 33 that drives it to slide in the inward and outward directions. The inner end of the slider 31 is connected to a sliding insert 34, which is the mold core part extending into the tail 907. The inner end of the shovel 32 is connected to a lower hole sliding part 35 and a lower thread sliding part 36 through a wedge mechanism 321. The lower hole sliding part 35 is the mold core part extending into the assembly hole 908, and the lower thread sliding part 36 is the mold core part forming the thread section 909. The shovel 32 and the slider 31 are linked. The slider 31 drives the shovel 32 to slide in the same direction, that is, in the inward and outward directions. With the cooperation of the wedge mechanism 320, the sliding direction of the lower hole sliding part 35 and the lower thread sliding part 36 is perpendicular to the inward and outward directions.

[0090] A time-delay linkage mechanism is provided between the shovel 32 and the slider 31, in which the slider 31 delays and drives the shovel 32 to slide together. In a preferred embodiment, the time-delay linkage mechanism includes a passive unit on the shovel 32 and an active unit on the slider 31. The passive unit includes an inner passive limiting part and an outer passive limiting part spaced apart, while the active unit includes an inner active limiting part and an outer active limiting part located between the inner and outer passive limiting parts. The active unit is embedded in the middle of the passive units and slides back and forth between them, driving the shovel 32 to slide with the slider 31 for a time delay. The back-and-forth sliding stroke of the active unit in the middle of the passive units corresponds to the time delay portion.

[0091] As a specific embodiment of the time-delay linkage mechanism, the outer end 322 of the shovel 32 forms a passive inner limiting part, and the inner end 311 of the slider 31 is located behind the outer end 322 of the shovel 32, forming the active inner limiting part. The outer end of the shovel 32 is connected to a time-delay rod 323, and the end of the time-delay rod 323 is formed with a flange 3231, which forms a passive outer limiting part. The slider 31 is provided with a mating part 312. Under the drive of the slider 31, the mating part 312 slides back and forth along the time-delay rod 323. When sliding outward, it is limited by the passive limiting part. The mating part 312 forms the active limiting part.

[0092] During demolding, the front and rear mold plates open. Before the inward undercut core-pulling demolding, the multi-slide continuous demolding device 3 operates to perform linked core-pulling demolding of the shower head body 900's tail 907, mounting hole 908, and threaded section 909. During demolding, the hydraulic cylinder mechanism 33 continuously drives the slider 31 to move obliquely outward. Figure 3(in the downward-southward direction). In the first stage, the slider 31 drives the sliding insert 34 to be pulled out of the tail 907 for demolding. During the demolding process of the sliding insert 34, the mating part 312 on the slider 31 slides outward along the delay rod 323, while the shovel 32 remains stationary. After the sliding insert 34 is demolded, the mating part 312 moves outward to be limited by the flange 3231. As the hydraulic cylinder mechanism 33 continues to drive the slider 31 to move outward, the shovel 32 is pushed outward synchronously. With the cooperation of the wedge mechanism 321, the shovel 32 drives the lower hole sliding part 35 and the lower thread sliding part 36 to be pulled out of the mounting hole 908 and the thread section 909 respectively for demolding. This completes the continuous linkage demolding action of multiple mold cores with different orientations on the shower body. The demolding action is simple, flexible and efficient, and it effectively avoids the problem of ineffective demolding due to spatial interference in narrow spaces. When the device is reset, the hydraulic cylinder mechanism 33 drives the slider 31 to reset, and with the cooperation of the time-delay linkage mechanism, it continuously drives the shovel 32 and its moving parts to reset.

[0093] Preferably, the slider 31 is provided with a slider seat 37, the slider 31 is installed in the slider seat 37, and the slider seat 37 is provided with a guide groove 371. The slider 31 is assembled in the guide groove 371 and slides back and forth under the guidance of the guide groove 371. Preferably, the guide groove 371 is also provided with a wear-resistant part 38 for cooperating with the slider 31.

[0094] Preferably, the cylinder mechanism 33 is provided with a cylinder connector 331, which is assembled with the slider 31 to achieve a connection. In a specific embodiment, the mating part 312 is formed on the cylinder connector 331. The cylinder connector 331 and the slider 31 are designed to be movable, forming a slider self-locking mechanism. The rear end of the slider 31 has a connector movable groove 313, allowing the cylinder connector 331 to move in both inward and outward directions. Figure 17 The slider 31 is movably installed in the joint movable groove 313 (in the left-right direction). A self-locking block 314 is movably installed on the side wall of the joint movable groove 313, and a self-locking groove 372 is provided on the inner side wall of the slider seat 37 to match the self-locking block 314. The hydraulic cylinder mechanism 33 drives the slider 31 to push inward through the hydraulic cylinder joint 331. When the slider 31 moves into place, the self-locking block 314 moves into the self-locking groove 372 under the push of the hydraulic cylinder joint 331. Through the mutual limiting effect of the two, the self-locking effect of the slider 31 is achieved.

[0095] Preferably, a limiting post (not shown in the figure) is provided at the outer end of the slider seat 37. The limiting post is located outside the slider and the slider 31 is limited to move outward by means of the limiting post.

[0096] Preferably, the mold further includes a panel 804 disposed on the front side of the front template 100, and a heat insulation plate 805 for heat insulation is provided on the front side of the panel 804.

[0097] Preferably, such as Figure 19-21As shown, an opening and closing buffer mechanism 4 is provided between the front template 100 and the panel 804. When the front template 100 and the panel 804 are not subjected to the closing pressure of the rear template, the opening and closing buffer mechanism 4 allows the front template 100 and the panel 804 to elastically separate at a set distance. A preferred embodiment of the opening and closing buffer mechanism 4 includes a plurality of urethane rubber groups 41 and a plurality of buffer spring groups 42 abutting between the front template 100 and the panel 804.

[0098] like Figure 19-21 As shown, the front mold plate 100 is provided with a front demolding device 5, which includes an upper hole sliding member 51, a first guide slide (not shown in the figure), an upper thread sliding member 52, and a second guide slide 53. The rear ends of the upper hole sliding member 51 and the upper thread sliding member 52 extend obliquely into the front mold core 400, respectively. The upper hole sliding member 51 is connected to the first guide slide through a wedge mechanism, and the upper thread sliding member 52 is connected to the second guide slide 53 through a wedge mechanism 531. The front ends of the first guide slide and the second guide slide 52 are both connected to the panel 804. The front mold plate 100 is provided with a guide groove 101 for the first guide slide and the second guide slide 52 to pass through. Preferably, the rear end of the first guide slide is provided with a first guide block for guiding the upper hole sliding member 51, and the rear end of the second guide slide 53 is provided with a second guide block 54 for guiding the upper thread sliding member 52.

[0099] The front demolding device 5 works during the mold opening process of the front and rear templates. During the mold opening process, with the help of the opening and closing buffer mechanism 4, the front template 100 is pushed back and moved a set distance relative to the panel 804. Then, the first guide slide and the second guide slide 53 are pushed forward relative to the panel 804. Under the action of the wedge mechanism, the upper hole sliding part 51 is driven to be pulled out obliquely from the upper opening 906 and the upper thread sliding part 52 is pulled out obliquely from the upper thread section of the thread section 909, thereby completing the synchronous core pulling demolding of the front mold.

[0100] This invention also relates to a method for opening a shower head body mold, comprising the following steps:

[0101] S1: Mold opening, cores on both sides simultaneously shrink inward to pull out the core and demold;

[0102] S2: The ejector plate moves in two stages. In the first stage, the ejector plate is ejected, and the head core and tail core retract inward to pull the core and demold. In the second stage, the angled ejector pin is ejected, and the four corner cores are simultaneously ejected at an angle to pull the core and demold, and eject the product.

[0103] Preferably, in step S1, the specific steps for the simultaneous inward retraction and core-pulling demolding of the two side cores are as follows: the rear template 300 and the push plate 200 open the mold backward, the front template 100 drives the first sliding member 11 to slide forward, and with the cooperation of the wedge mechanism 121 / 122 of the second sliding member 12, it drives the third sliding member 13 to slide backward, and finally drives the side cores 14 on both sides to shrink inward simultaneously, so as to realize the core-pulling demolding of the side cores on both sides of the shower body from the inner undercut area 902.

[0104] Preferably, in step S2, the ejector plate operates in two consecutive stages. The relevant driving mechanism drives the ejector plate 220 forward, and the ejector mechanism 22, the inner retraction mechanism 23, and the inclined ejector mechanism 24 cooperate to continuously perform two stages of demolding operation:

[0105] In the first stage of operation, the ejector plate 220 drives the ejector pin 221 forward. The ejector pin 221 is limited by the movable pin 224, which simultaneously drives the reset core 222 forward. This causes the push plate 200 to move forward. Since the rear mold plate 300 remains stationary, the rear mold insert 600 on the rear mold plate 300 moves backward relatively. Under the cooperation of the wedge mechanism 2311 / 2321, the head sliding member 231 and the tail sliding member 232 both retract inward. The head core of the head sliding member 231 and the tail core of the tail sliding member 232 move out from the head inner undercut area 903 and the tail inner undercut area 904 of the shower body 900, respectively. This realizes the demolding operation of the head and tail inner undercut areas of the shower body 900.

[0106] In the second stage of operation, the ejector plate 220 continues to advance forward, and the movable pin 224 moves forward with the reset core 222 to the pin groove 2231. The movable pin 224 releases the limit on the ejector pin 211, and the ejector pin 211 continues to advance forward through the reset core 222 under the drive of the ejector plate 220. At this time, the push plate 200 remains stationary. Under the drive of the ejector plate 220, the four inclined ejector rods 241 tilt and move forward relative to the rear template 300 and the push plate 200. The four sets of corner cores 2411 move forward and inward, thereby moving the four sets of corner cores 2411 out from the undercut area 905 at the four corners, realizing the four-corner inclined ejector demolding and ejecting the shower head body.

[0107] Preferably, in step S1, before the mold is opened and the cores on both sides are simultaneously retracted and demolded, the multi-slide continuous demolding device 3 is used to perform the linked core pulling demolding of the tail cavity, tail mounting hole and thread section. The specific steps are as follows: the hydraulic cylinder mechanism 33 is continuously driven to move the slider 31 outward at an angle; in the first stage, the slider 31 drives the slide insert 34 to pull the core out of the tail 907 cavity; after the slide insert 34 has completed demolding, as the hydraulic cylinder mechanism 33 continues to drive the slider 31 and the shovel 32 to push outward synchronously, with the cooperation of the wedge mechanism 321, the lower hole slide 35 and the lower thread slide 36 are driven to perform oblique core pulling demolding from the mounting hole 908 and the thread section 909 respectively.

[0108] Preferably, in step S1, during the mold opening process, with the help of the opening and closing buffer mechanism 4, the front template 200 is pushed back and moved a set distance relative to the panel 804. Then, the first guide slide and the second guide slide 53 move forward relative to the panel 804. Under the action of the wedge mechanism, the upper hole sliding member 51 is driven to be pulled out from the upper opening 906 and the upper thread sliding member 52 is pulled out from the upper thread section of the thread section 909, thereby completing the synchronous core pulling and demolding of the front mold.

[0109] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. A shower head body mold, characterized in that: The mold includes a front mold plate, a push plate, and a rear mold plate. The front mold plate has a front mold core, the push plate has a rear mold core, and the rear mold plate has a rear mold insert that extends into the rear mold core. The front mold core, the rear mold core, and the rear mold insert are joined together to form a mold cavity. The mold also includes a multi-position linkage internal retraction demolding device and an in-mold continuous drive demolding device. The multi-position linkage internal shrinkage demolding device includes a first sliding component, a second sliding component, a third sliding component, and a side core. The first sliding member extends forward and backward through the push plate, and its front end is fixed to the front template. The third sliding member extends forward and backward through the rear mold insert. The second sliding member is positioned on the rear template to limit movement in the forward and backward direction. The second sliding member is located at the rear end between the first and third sliding members, and is slidably connected to the first and third sliding members using a wedge mechanism. The side core is slidably connected to the front end of the third sliding member using a wedge mechanism. The in-mold continuous drive demolding device includes an ejector pin mechanism, an internal retraction mechanism, and an inclined ejector mechanism; the ejector pin mechanism includes an ejector plate, an ejector pin, a reset core, and a reset sleeve; the reset sleeve is mounted on the rear mold plate, the reset core is movably mounted inside the reset sleeve, and the front end of the reset core extends out of the reset sleeve and abuts against the push plate; the rear end of the ejector pin is mounted on the ejector pin plate, and the front end extends into the rear end of the reset core; the reset core is equipped with a pin for limiting the movement of the ejector pin, and the reset sleeve has a pin groove for the outward movement of the pin; the internal retraction mechanism... It includes a head slide and a tail slide, which are slidably connected to the side of the rear mold insert using a wedge mechanism. The rear ends of the head slide and the tail slide are stopped and limited by a push plate. The inclined ejector mechanism includes four inclined ejector rods distributed at the four corners. The rear end of each inclined ejector rod is adjusted to move towards the center and rests against the ejector plate. Each inclined ejector rod passes through the rear mold plate and the push plate in sequence until it reaches the front end of the rear mold insert. The front end of each inclined ejector rod is provided with a corner core.

2. The shower head body mold as described in claim 1, characterized in that: The rear end of the head guide member is horizontally positioned, and a horizontal limiting part is formed on the corresponding push plate; the rear end of the tail guide member is inclined outwards and forwards, and an inclined limiting part is formed on the corresponding push plate.

3. The shower head body mold as described in claim 1, characterized in that: The mold also includes a multi-slide continuous demolding device, which includes a slider and a shovel arranged adjacent to each other. The outer end of the slider is connected to a hydraulic cylinder mechanism that drives it to slide in the inward and outward directions. The inner end of the slider is connected to a slide insert. The inner end of the shovel is connected to a lower hole slide and a lower thread slide via a wedge mechanism. A time-delay linkage mechanism is provided between the shovel and the slider, in which the slider delays and drives the shovel to slide together.

4. A shower head body mold as described in claim 3, characterized in that: The time-delay linkage mechanism includes a passive unit mounted on the shovel and an active unit mounted on the slider. The passive unit includes a passive inner limiting part and a passive outer limiting part that are spaced apart. The active unit includes an active inner limiting part and an active outer limiting part located between the passive inner limiting part and the passive outer limiting part. The passive inner limiting part is formed at the outer end of the shovel, and the active inner limiting part is formed at the inner end of the slider, which is limited to the rear of the outer end of the shovel. The outer end of the shovel is connected to a time-delay rod, and the end of the time-delay rod protrudes to form a passive outer limiting part. The active outer limiting part is formed on the slider, which slides back and forth along the time-delay rod and is limited by the passive outer limiting part.

5. A shower head body mold as described in claim 3, characterized in that: The slider is installed in a slider seat, and the slider seat is provided with a guide groove for the slider to slide back and forth; the hydraulic cylinder mechanism is provided with a hydraulic cylinder joint, and the rear end of the slider forms a joint movable groove, in which the hydraulic cylinder joint can be movably installed; a self-locking block is movably installed on the side wall of the joint movable groove, and a self-locking groove matching the self-locking block is provided on the inner side wall of the slider seat.

6. A shower head body mold as described in claim 1, characterized in that: The mold also includes a front demolding device located within the front template and a panel located on the front side of the front template. A buffer mechanism is provided between the front template and the panel. The front demolding device includes an upper hole sliding member, a first guide slide, an upper thread sliding member, and a second guide slide. The rear ends of the upper hole sliding member and the upper thread sliding member extend obliquely into the front mold core. The upper hole sliding member is connected to the first guide slide through a wedge mechanism, and the upper thread sliding member is connected to the second guide slide through a wedge mechanism. The front ends of both the first and second guide slides are connected to the panel.

7. A method for opening a shower head body mold, using the shower head body mold according to any one of claims 1-6, characterized in that, The mold-making method includes the following steps: S1: Mold opening, cores on both sides simultaneously shrink inward to pull out the core and demold; S2: The ejector plate moves in two stages. In the first stage, the ejector plate is ejected, and the head core and tail core retract inward to pull the core and demold. In the second stage, the angled ejector pin is ejected, and the four corner cores are simultaneously ejected at an angle to pull the core and demold, and eject the product.

8. The mold-opening method for a shower head body mold as described in claim 7, characterized in that: In step S1, the specific steps for the simultaneous inward shrinkage and core removal of the two cores are as follows: the rear template and push plate open the mold backward, the front template drives the first sliding member to slide forward, and with the cooperation of the wedge mechanism of the second sliding member, it drives the third sliding member to slide backward, and finally drives the two cores to shrink inward synchronously, so as to realize the core removal and core removal of the two cores of the shower body.

9. The mold-opening method for a shower head body mold as described in claim 7, characterized in that: In step S2, the ejector plate operates in two stages. The ejector plate moves forward, and the ejector mechanism, the inward retraction mechanism, and the inclined ejector mechanism work together to perform two stages of demolding: In the first stage, the ejector plate drives the ejector pins forward, which in turn drives the push plate to move forward via the reset core. The rear mold insert on the rear mold plate moves backward relatively. With the cooperation of the inclined wedge mechanism, the head slide and the tail slide are both retracted inward, and the head core and the tail core retract inward simultaneously to demold. In the second stage, the ejector plate continues to move forward, the ejector pins pass through the reset core and continue to move forward, the four inclined ejector rods tilt forward and move forward, and the four sets of corner cores move forward and inward simultaneously to demold, realizing the four corner inclined ejector demolding and ejecting the shower head body.

10. The mold-opening method for a shower head body mold as described in claim 7, characterized in that: In step S1, before the mold is opened and the cores on both sides are simultaneously pulled inward to remove the cores, the cores at the tail cavity, the tail mounting hole, and the threaded section are pulled in a coordinated manner to remove the cores. The specific steps are as follows: the hydraulic cylinder mechanism continues to drive the slider to move outward at an angle; in the first stage, the slider drives the sliding insert to remove the cores from the tail cavity; after the sliding insert is removed, as the hydraulic cylinder mechanism continues to drive the slider and the shovel to move outward synchronously, with the cooperation of the wedge mechanism, the lower hole sliding part and the lower threaded sliding part are pulled out at an angle from the mounting hole and the threaded section, respectively.

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