Shower head body mold

Abstract

The utility model discloses a shower head body mold which 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, and the rear mold plate is provided with a rear mold insert extending into the rear mold core; the mold further comprises a multi-position linkage internal shrinkage demolding device and an in-mold continuous driving demolding device. According to the utility model, the multi-position linkage internal shrinkage demolding device and the in-mold continuous driving demolding device are ingeniously designed, the demolding of the side edge internal reverse buckle area is synchronously realized in the mold opening stage of the front and rear mold plates of the mold by utilizing the multi-position linkage internal shrinkage demolding device, and then the in-mold continuous driving demolding device is used for continuously driving in two sections; continuous demolding of head and tail inner reverse buckling areas and four-corner inner reverse buckling areas is achieved, demolding operation of the whole circle of inner reverse buckling areas is easy, stable and efficient, and the multi-area continuous and non-interference demolding effect in a narrow space is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a shower head body mold. Background Art

[0002] Shower heads are commonly used bathroom products in the home. Shower heads are produced using a dedicated injection molding mold. The mold generally includes a movable mold plate, a fixed mold plate, a movable mold core, a fixed mold core, a slider and other parts. During molding, all parts are first molded together to form a mold cavity. Then, molten plastic is injected into the mold cavity through a pouring system. After the steps of pressure holding, shrinking, cooling and other steps until solidification, the mold is finally opened to separate the molded product. At present, in order to facilitate the demoulding operation, the structure of the molded shower head body is simplified as much as possible, especially avoiding the internal undercut structure, which greatly limits the diversity of the integrated structure of the shower head body.

[0003] At present, the ordinary shower body is a round body with a round head and a round assembly hole formed on the round head. With the improvement of living standards and people's pursuit of product innovation, square shower bodies have appeared. The square body has a square head and a round assembly hole is designed on the square head, forming an inner undercut edge that serves as a transition between the square and the circle and constitutes an inner undercut structure. The current structure design of the shower body cannot be formed in one go with the existing mold and must be formed in parts and then assembled into one.

[0004] In view of this, the applicant of this case conducted in-depth research on the above-mentioned issues and proposed a shower body mold. Utility Model Content

[0005] The utility model aims to provide a shower head body mold, which can achieve the effect of once-forming a heterosexual shower head body with an inner undercut structure.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A shower head body mold, comprising a front mold plate, a push plate and a rear mold plate, wherein 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, and the front mold core, the rear mold core and the rear mold insert are combined to form a mold cavity; the mold further comprises a multi-position linkage inward-shrinking demoulding device and an in-mold continuous driving demoulding device;

[0008] The multi-position linkage inward-shrinking demoulding device comprises a first slider, a second slider, a third slider and a side core; the first slider extends forward and backward and penetrates through the push plate, and the front end of the first slider is fixed on the front template; the third slider extends forward and backward and penetrates through the rear mold insert; the second slider is limited in the front and rear directions on the rear template, the second slider is arranged at the rear end position between the first slider and the third slider, and the second slider is respectively connected to the first slider and the third slider by an inclined wedge mechanism for sliding; the side core is connected to the front end of the third slider by an inclined wedge mechanism for sliding;

[0009] The in-mold continuously driven demoulding device comprises an ejector mechanism, an inner retracting mechanism and an inclined ejector mechanism; the ejector mechanism comprises an ejector plate, an ejector, a reset core and a reset sleeve; the reset sleeve is arranged on the rear template, the reset core is movably arranged in the reset sleeve, 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 is arranged on the ejector plate and the front end extends into the reset core from the rear end; a movable pin for limiting the ejector is installed on the reset core, and a pin groove for the movable pin to shift outward is arranged in the reset sleeve; the inner retracting mechanism It includes a head position piece and a tail position piece, which are respectively slidably connected on the side of the rear mold insert by an inclined wedge mechanism, and the rear ends of the head position piece and the tail position piece are supported and limited by a push plate; the inclined ejector mechanism includes four inclined ejector rods distributed at four corners, and the rear end of each inclined ejector rod is supported on the ejector pin plate in a manner that can be adjusted toward the center, and each inclined ejector rod passes through the rear mold plate and the push plate in sequence to the front end of the rear mold insert, and the front end of each inclined ejector rod is provided with an angle core body.

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

[0011] The matching part between the ejector pin and the movable pin adopts a tapered structure with a reduced diameter toward the front direction, and the matching part between the movable pin and the pin groove adopts a tapered structure with a reduced diameter toward the rear direction.

[0012] The reset core is provided with a side groove for setting a movable pin, the movable pin is provided with 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 end opening of the reset sleeve. The front end of the reset sleeve is stacked with a fixing sleeve, which is sleeved on the reset core. The front end of the reset core is formed with a flange that resists the fixing sleeve.

[0014] The rear end of the head position piece is horizontally arranged, and a horizontal limit portion is formed on the corresponding push plate; the rear end of the tail position piece is tilted forward outward, and an inclined limit portion is formed on the corresponding push plate.

[0015] The inclined ejector rod is sleeved with an inclined ejector guide block, which is correspondingly locked on the push plate.

[0016] The ejector plate is provided with an adjusting slot for the rear end of the rod to be adjusted toward the center.

[0017] The mold also includes a multi-row continuous demoulding device, which includes a slider and a shovel arranged adjacent to each other. The outer end of the slider is connected to a cylinder mechanism that drives it to slide inward and outward directions, and the inner end of the slider is connected to a slider insert; the inner end of the shovel is connected to a lower hole slider and a lower screw slider through an inclined wedge mechanism, and a delay linkage mechanism is provided between the shovel and the slider, which is driven by the slider to delay the shovel and slide together.

[0018] The delayed linkage mechanism includes a passive unit arranged on the shovel and an active unit arranged on the slider; the passive unit includes a passive inner limit part and a passive outer limit part arranged to maintain an inner and outer spacing, 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 limit part, and the inner end of the slider is located behind the shovel to form the active inner limit part; the outer end of the shovel is connected to the delay rod, and the end of the delay rod protrudes to form the passive outer limit part, and the slider is formed with the active limit part that slides back and forth along the delay rod and is limited by the passive limit part.

[0020] The slider is installed in the slider seat, and a guide groove is provided in the slider seat for the slider to slide back and forth; the cylinder mechanism is provided with a cylinder joint, and a joint movable groove is formed at the rear end of the slider, and the cylinder joint is movably installed in the joint movable groove; a self-locking block is movably installed at 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 demoulding device arranged in the front template and a panel arranged on the front side of the front template, and an opening and closing buffer mechanism is arranged between the front template and the panel; the front demoulding device includes an upper hole slider, a first guide slide, an upper screw slider and a second guide slide; the rear ends of the upper hole slider and the upper screw slider extend obliquely into the front mold core respectively, the upper hole slider is connected to the first guide slide by an inclined wedge mechanism, the upper screw slider is connected to the second guide slide by an inclined wedge mechanism, and the front ends of the first guide slide and the second guide slide are both 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 member, and the rear end of the second guide slide is provided with a second guide block for guiding the upper screw thread sliding member.

[0023] The opening and closing buffer mechanism comprises a plurality of high-strength rubber groups and a plurality of buffer spring groups which are arranged between the front template and the panel.

[0024] After adopting the above scheme, the utility model provides a shower body mold, which has the beneficial effect compared with the prior art in that the utility model mold is specially used for the production and demoulding of shower bodies with inner undercut structures. The whole circle inner undercut area of ​​the shower body is divided into the side inner undercut area, the head and tail inner undercut area and the four corner inner undercut area according to different structures. The utility model cleverly designs a multi-position linkage inner shrink demoulding device and an in-mold continuous drive demoulding device. The multi-position linkage inner shrink demoulding device is used to synchronously realize the demoulding of the side inner undercut area during the mold opening stage of the front and rear templates of the mold. After that, the in-mold continuous drive demoulding device is used to continuously drive in two stages to realize the continuous demoulding of the head and tail inner undercut area and the four corner inner undercut area. The demoulding operation of the whole circle inner undercut area is simple, stable and efficient, and the multi-zone continuous non-interference demoulding effect is realized in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the front view of the shower body mold of the utility model;

[0026] Figure 2 yes Figure 1 A cross-sectional view of

[0027] Figure 3 This is the structure diagram of the shower head Figure 1 ;

[0028] Figure 4 This is the structure diagram of the shower head Figure 2 ;

[0029] Figure 5 It is a structural schematic diagram of a multi-position linkage shrinking demoulding device;

[0030] Figure 6 yes Figure 5 Exploded view;

[0031] Figure 7 It is a cross-sectional view of the multi-position linkage shrinking demoulding device in the mold;

[0032] Figure 8 It is a structural schematic diagram of the in-mold continuous driving demoulding device;

[0033] Fig. 9 yes Figure 8 Exploded view;

[0034] Fig.10 It is another structural schematic diagram of the in-mold continuous drive demoulding device;

[0035] Fig.11 This is a cross-sectional view of the continuous drive demoulding device in the mold Figure 1 ;

[0036] Fig.12 for Fig.11 Enlarged view of part A;

[0037] Fig.13 for Fig.11 Enlarged view of part B;

[0038] Fig.14 This is a cross-sectional view of the continuous drive demoulding device in the mold Figure 2 ;

[0039] Fig.15 This is the front view of the new multi-row continuous demoulding device;

[0040] Fig.16 yes Fig.15 A cross-sectional view of

[0041] Fig.17 It is a schematic diagram of the internal structure of a multi-row continuous demoulding device;

[0042] Fig.18 It is a cross-sectional view from another angle of the multi-row continuous demoulding device;

[0043] Fig.19 is a schematic diagram of a front demoulding device;

[0044] Fig. 20 is another schematic diagram of the front demoulding device;

[0045] Fig.21 It is a structural diagram of the front template.

[0046] Description of symbols

[0047] Front template 100, push plate 200, push plate through groove 201, first limiting portion 202, second limiting portion 203, rear template 300, sink groove 301, long strip 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 area 905, side opening 906, threaded section 907, assembly hole 908;

[0048] A multi-position linkage inward-shrinking demoulding device 1, a first slider 11, a second slider 12, an inclined wedge mechanism 121 / 122, a clearance groove 123, a limiting edge 124, a third slider 13, a slider body 131, a lower inclined wedge joint 132, a side core 14, and an inclined wedge mechanism 141;

[0049] In-mold continuously driven demoulding device 2, ejector mechanism 22, ejector plate 220, ejector plate surface 2201, ejector bottom plate 2202, adjusting groove 2203, ejector 221, reset core 222, side groove 2221, flange 2222, reset sleeve 223, pin groove 2231, necking section 2232, inner shrinkage mechanism 23, head position piece 231, inclined wedge mechanism 2311, tail position piece 232, inclined wedge mechanism 2321, movable pin 224, adjusting hole 2241, inclined ejector mechanism 24, inclined ejector rod 241, angle core body 2411, inclined ejector guide block 2412, inclined ejector seat 2413, limit rod 225, fixing kit 226;

[0050] Multi-position continuous demoulding device 3, slider 31, inner end 311, matching part 312, joint movable groove 313, self-locking block 314, shovel 32, wedge mechanism 321, outer end 322, delay rod 323, flange 3231, cylinder mechanism 33, cylinder joint 331, position insert 34, lower hole position member 35, lower screw position member 36, slider seat 37, guide groove 371, self-locking groove 372, wear-resistant part 38; opening and closing buffer mechanism 4, high strength rubber group 41, buffer spring group 42;

[0051] The front demoulding device 5 , the upper hole sliding member 51 , the upper screw thread sliding member 52 , the second guide slide seat 53 , the inclined wedge mechanism 531 , and the second guide block 54 . DETAILED DESCRIPTION

[0052] The case is further described in detail below in conjunction with specific implementation methods.

[0053] This case involves a shower head 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 core 400 is provided on the front mold plate 100, the rear mold core 500 is provided on the push plate 200, and the rear mold insert 600 is provided on the rear mold plate 300 to extend into the rear mold core 500. When the mold is in the mold-closing state, the front mold core 400, the rear mold core 500 and the rear mold insert 600 are molded together to form a mold cavity 700. In actual application of the mold, the front mold plate 100, the push plate 200 and the rear mold plate 300 are arranged in front and back, that is, corresponding to Figure 1-2 The up and down directions in .

[0054] Shower head 900 Figure 3-4As shown, the overall shape is a square structure, and the water outlet position is formed with a circular hole 901 through a whole circle of inner undercut edges formed in one piece. The inner undercut edges formed in one piece are closed-loop structures with irregular sizes. In order to achieve effective demoulding of the whole circle of inner undercut edges, the utility model divides the inner undercut edges into three groups of eight areas, one group is the two side inner undercut areas 902 corresponding to the two side edges, the second group is the head inner undercut area 903 and the tail inner undercut area 904 on the head and tail sides, and the third group is the four corner inner undercut areas 905 corresponding to the four corners. An upper opening 906 is formed at a position near the head end on the back of the shower body 900, and 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.

[0055] The main innovation of the mold of the utility model is that the undercut edge of the whole circle of the shower body is effectively demoulded. The mold mainly includes a multi-position linkage inner shrinking demoulding device 1 and an inner mold continuous driving demoulding device 2.

[0056] The multi-position linkage shrinking demoulding device 1, such as Figure 5-7 As shown, it is arranged between the front mold plate 100, the push plate 200 and the rear mold plate 300 of the mold. The multi-position linkage inward-shrinking demoulding device 1 is used to realize the effective demoulding effect on the inner undercut areas 902 of the two side edges. In order to realize the synchronous demoulding of the inner undercut areas 902 of the two side edges, the multi-position linkage inward-shrinking demoulding device 1 is provided with two symmetrical groups.

[0057] The multi-position linkage shrinking demoulding device 1 comprises a first slider 11, a second slider 12, a third slider 13 and a side core 14. The first slider 11 extends forward and backward and penetrates the push plate 200. The push plate 200 is provided with a push plate through groove 201 for the first slider 11 to penetrate. Figure 5 The upper end of the third slider 13 is fixed to the front template 100. The third slider 13 extends forward and backward and penetrates the rear mold insert 600. The rear mold insert 600 is provided with an insert through groove 601 for the third slider 13 to penetrate.

[0058] The second positioning member 12 is formed on the rear template 300 in the front-to-back direction ( Figure 7The second slider 12 is arranged at the rear end position between the first slider 11 and the third slider 13, and the left and right sides of the second slider 12 are respectively connected to the first slider 11 and the third slider 13 by an inclined wedge mechanism 121 / 122 for sliding. The inclined directions of the inclined wedge mechanism 121 / 122 are arranged in opposite directions. Specifically, with the rear mold insert 600 as the center position, the first slider 11 is arranged relatively close to the outside, and the inclined wedge mechanism 121 connected to the first slider 11 is inclined from the back to the front inward (i.e., toward the center); the third slider 13 is arranged relatively close to the inside, and the inclined wedge mechanism 122 connected to the third slider 13 is inclined from the back to the front outward. The side core 14 is arranged on the rear mold insert 600 so as to be movable left and right, and the side core 14 is connected to the front side end of the third slider 13 by an inclined wedge mechanism 141 for sliding. The inclined direction of the wedge mechanism 141 is from the back to the front and inward (ie, toward the center).

[0059] like Figure 7 As shown, after the shower body 900 is formed, the side core 14 is located in the undercut area 902 of the side edge of the shower body 900. When demolding, the rear mold plate 300 and the push plate 200 are opened backwards, and the front mold plate 100 drives the first slider 11 forwards ( Figure 7 The third slider 13 moves backward ( Figure 7 The side core 14 is finally driven to retract inwards, thereby effectively demolding the inner undercut area 902 on the side of the shower body. In practice, two symmetrical groups of multi-position linkage inward-shrinking demolding devices 1 are operated synchronously, and the inward-shrinking demolding effect of the inner undercut area 902 on both sides of the shower body is achieved while the mold is opened. The multi-position linkage inward-shrinking demolding device 1 of the present application has a simple and smart structural design, occupies a small space, and has the characteristics of flexible, simple, stable and efficient demolding operation.

[0060] The mold continuously drives the demoulding device 2, such as Figure 8-14 As shown, it is arranged between the push plate 200 and the rear mold plate 300 of the mold, and includes an ejector mechanism 22, an inner retracting mechanism 23 and an inclined ejector mechanism 24.

[0061] The ejector mechanism 22 is arranged at the rear position of the rear template 300, and includes an ejector plate 220, an ejector 221, a reset core 222 and a reset sleeve 223. The reset sleeve 222 is arranged on the rear template 300 in a manner extending forward and backward. The reset core 222 is movably arranged in the reset sleeve 223, and the two are preferably clearance-matched, which is conducive to the 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 221 is fixed on the ejector plate 220, and the front end of the ejector 221 extends from the rear end of the reset core 222.

[0062] A movable pin 224 for limiting the ejector 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 in the reset sleeve 223 and avoids the position of the pin groove 2231, the movable pin 224 is restricted in a retracted state, and the movable pin 224 has a limiting effect on the ejector 221. When the ejector plate 220 drives the ejector 221 to move forward, the reset core 222 is driven to move forward synchronously through the movable pin 224, and 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 relative position between the movable pin 224 and the pin groove 2231, the movable pin 224 is pushed outward to move into the pin groove 2231 with the help of the supporting force of the ejector pin 221, thereby releasing the limiting effect of the movable pin 224 on the ejector pin 221. At this time, the second stage is entered. During the process of the ejector plate 220 driving the ejector pin 221 to continue to move forward, the reset core 222 remains stationary, that is, the push plate 200 remains stationary.

[0063] The inner retracting mechanism 23 includes a head position piece 231 and a tail position piece 232. The head position piece 231 and the tail position piece 232 are arranged opposite to each other on the rear mold insert 600. A head core is formed on the head position piece 231, and a tail core is formed on the tail position piece 232. The head position piece 231 is slidably connected to the side of the rear mold insert 600 by an inclined wedge mechanism 2311, and the tail position piece 232 is slidably connected to the side of the rear mold insert 600 by an inclined wedge mechanism 2321. With the rear mold insert 600 as the center position, the inclined wedge mechanism 2311 connected to the head position piece 231 is inclined from the back to the front (i.e., toward the center); the inclined wedge mechanism 2321 connected to the tail position piece 232 is also inclined from the back to the front (i.e., toward the center). The rear ends of the head position member 231 and the tail position member 232 are set to be abutted by the push plate 200. Specifically, the push plate 200 is provided with a first limiter 202 for abutting against the rear end of the head position member 231 and a second limiter 203 for abutting against the rear end of the tail position member 232. The first limiter 202 and the second limiter 203 are specifically designed as wear-resistant block structures.

[0064] The lift mechanism 24 includes four lift rods 241 distributed at four corners. The rear end of each lift rod 241 is set against the ejector plate 220 in a manner that it can be adjusted toward the center. In a specific implementation, the ejector plate 220 is provided with four strip-shaped adjustment slots 2203 extending toward the center, and the rear end of each lift rod 241 is set in the adjustment slot 2203 and can be moved and adjusted in the adjustment slot 2203. Each lift rod 241 passes through the rear mold plate 300, the push plate 200 and the front end of the rear mold insert 600 in sequence, and the front end of each lift rod 241 is provided with an angle core 2411. In order to facilitate the movable adjustment of the lift rod 241, the through hole of the lift rod 241 passing through the rear mold plate 300 is a long strip hole 301 extending toward the center. In addition, in order to facilitate the stability of the tilting action of the tilting rod 24, a tilting guide block 2412 is sleeved on the tilting rod 24, and the tilting guide block 2412 is correspondingly locked on the push plate 200.

[0065] After the shower body 900 is formed by the mold, the head core of the head position member 231 and the tail core of the tail position member 232 are respectively located in the head inner undercut area 903 and the tail inner undercut area 904 of the shower body 900, and the four corner cores 2411 are respectively located in the four corner inner undercut areas 905 of the shower body 900. The novel device adopts the in-mold continuous drive demoulding method to realize the continuous and effective demoulding effect of the head, tail and four corner inner undercut structures of the shower body 900. During demoulding, after the front and rear templates are opened, the relevant driving mechanism drives the ejector plate 220 to move forward, and the ejector mechanism 22, the inner retracting mechanism 23 and the inclined ejector mechanism 24 cooperate with each other to continuously perform two-stage demoulding operations:

[0066] In the first stage of operation, the ejector plate 220 drives the ejector 221 to move forward. The ejector 221 is limited by the movable pin 224 and synchronously drives the reset core 222 to move forward, thereby driving the push plate 200 to move forward. Since the rear template 300 remains stationary, the rear mold insert 600 on the rear template 300 moves relatively backward. Under the cooperation of the inclined wedge mechanism 2311 / 2321, the head position member 231 and the tail position member 232 are driven to retract inward, and the head core of the head position member 231 and the tail core of the tail position member 232 are respectively moved out of the head inner undercut area 903 and the tail inner undercut area 904 of the shower body 900, thereby realizing the demoulding operation of the head and tail inner undercut areas of the shower body 900;

[0067] It should be noted that, in the first stage, when the ejector plate 220 is pushed forward, the four inclined ejector rods 241 are pushed forward synchronously. Since the push plate 200 drives the rear mold core 500 and the shower body 900 thereon to be pushed forward synchronously, the relative positions between the four inclined ejector rods 241 and the shower body 900 remain unchanged in the first stage.

[0068] In the second stage of operation, the ejector plate 220 continues to move forward, and the movable pin 224 moves forward to the pin groove 2231 along with the reset core 222. The movable pin 224 releases the limit on the ejector 211. The ejector 211 passes through the reset core 222 and continues to move forward under the drive of the ejector plate 220. At this time, the push plate 200 remains stationary; the four inclined ejector rods 241 are driven by the ejector plate 220 and tilted forward relative to the rear template 300 and the push plate 200, and the four groups of corner core bodies 2411 move forward and shrink inward, thereby the four groups of corner core bodies 2411 move out from the four corner inner undercut areas 905, so that the four corner inclined ejector demoulding is realized and the shower body is ejected.

[0069] The shower head body mold of the utility model is cleverly designed with a multi-position linkage inner shrinking demoulding device 1 and an inner mold continuously driven demoulding device 2. During the demoulding operation, in the mold opening stage of the front and rear templates of the mold, the multi-position linkage inner shrinking demoulding device 1 is used to synchronously realize the demoulding of the inner undercut areas 902 on both sides. Then, with the help of the inner mold continuously driven demoulding device 2, it is continuously driven in two stages to realize the continuous demoulding of the head inner undercut area 903 and the tail inner undercut area 904 in the first stage, and the continuous demoulding of the four corner inner undercut areas 905 in the second stage, thereby completing the demoulding operation of the whole circle of inner undercut areas very smoothly. The mold structure design of the utility model is novel and clever, and the operation is very simple, stable and efficient, and the continuous demoulding effect of multiple zones without interference in a narrow space is realized.

[0070] Preferably, in order to facilitate compactness of structure and easy assembly in a small space, Figure 7 The third slide member 13 is divided into two parts, including a slide body 131 and a lower inclined wedge joint 132. The front end of the slide body 131 forms an upper inclined wedge portion corresponding to the inclined wedge mechanism 141. During assembly, the slide body 131 extends from the front end of the insert through groove 601 and penetrates the setting, and the lower inclined wedge joint 132 is locked with the rear end of the slide body 131 by means of bolts.

[0071] Preferably, if Figure 7 Corresponding to the design of the inclined wedge mechanism 121 / 122, the left and right ends of the second sliding member 12 are respectively formed with a first inclined wedge portion connected to the first sliding member 12 and a second inclined wedge portion connected to the third sliding member 13, wherein a clearance groove 123 is opened in the middle of the second inclined wedge portion to facilitate the assembly and locking of the lower inclined wedge joint 132.

[0072] Preferably, if Figure 6-7, a sinking groove 301 is provided on the rear template 300, and the second slider 12 is correspondingly sunk in the sinking groove 301. The rear ends of the first slider 11 and the third slider 13 extend into the sinking groove 301 respectively, so as to be connected with the second slider 12 by an oblique wedge to form an oblique wedge mechanism 121 / 122. In order to facilitate the restriction of the second slider 12 in the front-to-back direction in the sinking groove 301, limiting edges 124 are provided on both sides of the second slider 12, and the rear template 300 is provided with a limiting block 302, and the limiting block 302 is pressed on the limiting edge 124 to realize the restriction of the front-to-back direction of the second slider 12.

[0073] Preferably, if 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 arranged on the rear mold insert 600 by mortise and tenon joint.

[0074] Preferably, the ejector mechanism 21 is provided with four groups distributed at four corners, which facilitates the ejector mechanism 21 to smoothly push the push plate 200 .

[0075] Preferably, if Fig.12 The rear end of the reset sleeve 223 is provided with a necking section 2232 for limiting the reset core 222 and guiding the ejector pin 221 . The front end of the ejector pin 221 extends into the reset core 222 via the necking section 2232 .

[0076] Preferably, if Figure 12-13 The matching part between the ejector pin 221 and the movable pin 224 adopts a tapered structure with a reduced diameter facing forward, and the matching part between the movable pin 224 and the pin slot 2231 adopts a tapered structure with a reduced diameter facing backward. The ejector pin 211 pushes the reset core 222 forward. When the movable pin 224 moves forward to the pin slot 2231 with the reset core 222, the movable pin 224 automatically moves into the pin slot 2231 with the help of the thrust of the ejector pin 211 and the guiding effect of the tapered structure, and the limiting effect on the ejector pin 211 is automatically released. On the contrary, when the reset core 222 moves backward and resets, the movable pin 224 automatically shrinks inward with the help of the guiding effect of the tapered structure, and the limiting effect on the ejector pin 211 is restored.

[0077] Preferably, if Fig.13 The reset core 222 is provided with a side groove 2221 for the movable pin 224 to be set, the movable pin 224 is provided with an adjustment limit hole 2241, and a limit rod 225 is provided in the side groove 2221 and extends into the adjustment limit hole 2241. By adjusting the limit hole 2241 and the limit rod 225, the movable pin 224 can move freely within the side groove 2221 within a limited range, thereby achieving the limit or release function of the ejector pin 211.

[0078] Preferably, if Fig.12The pin groove 2231 is a conical groove formed at the front end opening of the reset sleeve 223. The front end of the reset sleeve 223 is stacked with a fixing kit 226, which is sleeved on the reset core 222. The front end of the reset core 222 is formed with a flange 2222 that resists the fixing kit 226.

[0079] Preferably, if Fig.14 The undercut area 903 of the shower head is horizontal, the rear end of the corresponding head position piece 231 is horizontally set, and the first limiter 202 is a horizontal limiter; when demolding, the head position piece 231 shrinks horizontally to complete the demolding of the head. The undercut area 904 of the shower tail is tilted, the rear end of the corresponding tail position piece 232 is tilted forward to the outside, and the second limiter 203 is an inclined limiter; when demolding, the tail position piece 232 shrinks obliquely to the rear to complete the demolding of the tail.

[0080] Preferably, if Fig.10 The ejector plate 220 includes an ejector panel 2201 and an ejector bottom plate 2202 stacked on 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 arranged on the inclined ejector seat 2413, and the inclined ejector rod 241 can flexibly adjust the inclination angle by means of the inclined ejector seat 2413.

[0081] Preferably, if Fig.10 As shown, a bottom plate 801 is provided at the rear of the ejector mechanism 21, and two protective side plates 802 are provided between the rear template 300 and the bottom plate 801, which facilitates the concealed internal structure of the mold and the smooth 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 smooth and accurate movement of each device module and ensures the normal opening and closing operation of the mold.

[0082] Preferably, the mold of the utility model further comprises a multi-row continuous demoulding device 3 provided on the push plate 200, which is used for the linkage core-pulling demoulding of the tail 907, the mounting hole 908 and the thread segment 909 of the shower body. Figure 15-18 As shown, the multi-row continuous demoulding device 3 mainly includes a slider 31 and a shovel 32 arranged adjacent to each other. The position of the shower body 900 is the inner direction, and the core pulling direction of the tail 907 is the outer direction (the inner and outer directions are Fig.16The outer end of the slider 31 is connected to a cylinder mechanism 33 that drives it to slide in the inner and outer directions. The inner end of the slider 31 is connected to a slider insert 34, and the slider insert 34 is a mold core portion that extends into the tail 907. The inner end of the shovel 32 is connected to a lower hole slider 35 and a lower screw slider 36 through an inclined wedge mechanism 321. The lower hole slider 35 is a mold core portion that extends into the assembly hole 908, and the lower screw slider 36 is a mold core portion of the formed thread segment 909. The shovel 32 is arranged in linkage with the slider 31, and the slider 31 drives the shovel 32 to slide in the same direction, that is, in the inner and outer directions. With the cooperation of the inclined wedge mechanism 320, the sliding directions of the lower hole slider 35 and the lower screw slider 36 are perpendicular to the inner and outer directions.

[0083] 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. As a preferred embodiment of the time-delay linkage mechanism, it includes a passive unit provided on the shovel 32 and an active unit provided on the slider 31. The passive unit includes a passive inner limit part and a passive outer limit part arranged to maintain an inner and outer spacing, 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. The active unit is embedded in the middle of the passive unit and slides back and forth between the passive units, driving the shovel 32 to slide with the slider 31 with a delay, and the back and forth sliding stroke of the active unit in the middle of the passive unit corresponds to the delay part.

[0084] As a specific embodiment of the time-delay linkage mechanism, the outer end 322 of the shovel 32 forms a passive inner limit portion, and the inner end 311 of the slider 31 is located behind the outer end 322 of the shovel 32 to form the active inner limit portion. The outer end of the shovel 32 is connected to the delay rod 323, and the end of the delay rod 323 is formed with a flange 3231, which forms a passive outer limit portion. The slider 31 is provided with a matching portion 312. Driven by the slider 31, the matching portion 312 slides back and forth along the delay rod 323, and is limited by the passive limit portion when sliding outward. The matching portion 312 forms the active limit portion.

[0085] During demoulding, the front and rear mold plates of the mold are opened, and before the inner undercut core-pulling demoulding, the multi-row continuous demoulding device 3 works to perform linkage core-pulling demoulding on the tail 907, the mounting hole 908 and the screw thread section 909 of the shower body 900. During demoulding, the oil cylinder mechanism 33 is continuously driven to drive the slider 31 to move obliquely outward ( Figure 3In the first stage, the slider 31 drives the slider insert 34 to be demolded from the tail 907 by core pulling. During the demolding process of the slider insert 34, the matching portion 312 on the slider 31 slides outward along the delay rod 323, and the shovel 32 remains stationary. After the slider insert 34 is demolded, the matching portion 312 moves outward to the limit position with the flange 3231. As the cylinder mechanism 33 continues to drive the slider 31 to move outward, the shovel 32 is driven to move outward synchronously. With the cooperation of the wedge mechanism 321, the shovel 32 drives the lower hole slider 35 and the lower screw slider 36 to be demolded from the mounting hole 908 and the screw segment 909 by core pulling. In this way, the continuous linkage demolding action of multiple mold cores in different directions on the shower body is completed. The demolding action is simple, flexible and efficient, and it can well avoid the problem of ineffective demolding due to spatial interference in narrow spaces. When the device is reset, the oil cylinder mechanism 33 drives the slider 31 to reset, and the delay linkage mechanism cooperates to continuously drive the shovel 32 and the sliding member thereon to reset.

[0086] Preferably, the slider 31 is provided with a slider seat 37, the slider 31 is installed in the slider seat 37, a guide groove 371 is provided in the slider seat 37, the slider 31 is assembled in the guide groove 371 and slides back and forth under the guidance of the guide groove 371. Preferably, a wear-resistant part 38 for matching the slider 31 is also provided in the guide groove 371.

[0087] Preferably, the oil cylinder mechanism 33 is provided with an oil cylinder joint 331, and the oil cylinder joint 331 is assembled with the slider 31 to realize the connection function. In the specific embodiment, the matching portion 312 is formed on the oil cylinder joint 331. The oil cylinder joint 331 and the slider 31 form a slider self-locking mechanism through a movable assembly design. The rear end of the slider 31 is formed with a joint movable groove 313, and the oil cylinder joint 331 can be moved in the inner and outer directions ( Fig.17 The slide block 37 is movably mounted in the joint movable groove 313 (in the left and right directions). A self-locking block 314 is movably mounted on the side wall of the joint movable groove 313, and a self-locking groove 372 matching the self-locking block 314 is provided on the inner side wall of the slider seat 37. The cylinder mechanism 33 drives the slider 31 to move inward through the cylinder joint 331. When the slider 31 moves inward to the right position, the self-locking block 314 moves into the self-locking groove 372 under the push of the cylinder joint 331. The self-locking effect of the slider 31 is achieved through the mutual limiting effect of the two.

[0088] Preferably, a limiting column (not shown in the figure) is provided at the outer end of the slider seat 37, and the limiting column is located outside the slider, and the limiting column is used to limit the outward movement of the slider 31.

[0089] Preferably, the mold further comprises a panel 804 arranged at the front side of the front template 100 , and a heat insulating plate 805 for heat insulation is arranged at the front side of the panel 804 .

[0090] Preferably, if 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 clamping pressure of the rear template, the front template 100 and the panel 804 are elastically separated at a set distance under the action of the opening and closing buffer mechanism 4. The preferred embodiment of the opening and closing buffer mechanism 4 includes a plurality of elastic rubber groups 41 and a plurality of buffer spring groups 42 disposed between the front template 100 and the panel 804.

[0091] like Figure 19-21 As shown, the front demoulding device 5 is provided in the front template 100, and the front demoulding device 5 includes an upper hole slider 51, a first guide slide seat (not shown in the figure), an upper screw slider 52 and a second guide slide seat 53. The rear ends of the upper hole slider 51 and the upper screw slider 52 extend obliquely into the front mold core 400 respectively. The upper hole slider 51 is connected to the first guide slide seat through an inclined wedge mechanism, and the upper screw slider 52 is connected to the second guide slide seat 53 through an inclined wedge mechanism 531. The front ends of the first guide slide seat and the second guide slide seat 52 are both connected to the panel 804. The front template 100 is provided with a guide slide groove 101 for the first guide slide seat and the second guide slide seat 52 to pass through. Preferably, a first guide block for guiding the upper hole slider 51 is provided at the rear end of the first guide slide seat, and a second guide block 54 for guiding the upper screw slider 52 is provided at the rear end of the second guide slide seat 53.

[0092] The front demolding device 5 works during the opening process of the front and rear templates of the mold. During the mold opening process, with the help of the opening and closing buffer mechanism 4, the front template 100 is pushed backward relative to the panel 804 to set the distance, and the first guide slide and the second guide slide 53 are relatively moved forward with the panel 804. Under the action of the inclined wedge mechanism, the upper hole sliding member 51 and the upper thread sliding member 52 are driven to be obliquely pulled out from the upper opening 906 and the upper threaded sliding member 52 are driven to be pulled out from the upper threaded section of the threaded section 909, thereby completing the synchronous core pulling and demolding of the front mold.

[0093] The mold opening method of the shower body mold of the utility model comprises the following steps:

[0094] S1: The mold is opened, and the cores on both sides are synchronously retracted and demoulded;

[0095] S2: The ejector plate moves in two stages. In the first stage, the push plate is ejected, and the head core and the tail core are synchronously retracted to pull the core to demould; in the second stage, the inclined ejector pin is ejected, and the four corner cores are synchronously inclined to pull the core to demould and eject the product.

[0096] Preferably, in step S1, the specific steps of synchronously shrinking and demolding the core bodies on both sides are as follows: the rear template 300 and the push plate 200 open the mold backward, and the front template 100 drives the first slider 11 to slide forward, and with the cooperation of the inclined wedge mechanism 121 / 122 of the second slider 12, drives the third slider 13 to slide backward, and finally drives the side core bodies 14 on both sides to shrink inward synchronously, so as to realize the core pulling and demolding of the side core bodies on both sides of the shower body from the inner undercut area 902.

[0097] Preferably, in step S2, the ejector plate performs two-stage actions continuously, and the relevant driving mechanism drives the ejector plate 220 to move forward, and the ejector mechanism 22, the inner retraction mechanism 23 and the inclined ejector mechanism 24 cooperate with each other to continuously perform two-stage demoulding operations:

[0098] In the first stage of operation, the ejector plate 220 drives the ejector 221 to move forward. The ejector 221 is limited by the movable pin 224 and synchronously drives the reset core 222 to move forward, thereby driving the push plate 200 to move forward. Since the rear template 300 remains stationary, the rear mold insert 600 on the rear template 300 moves relatively backward. Under the cooperation of the inclined wedge mechanism 2311 / 2321, the head position member 231 and the tail position member 232 are driven to retract inward, and the head core of the head position member 231 and the tail core of the tail position member 232 are respectively moved out of the head inner undercut area 903 and the tail inner undercut area 904 of the shower body 900, thereby realizing the demoulding operation of the head and tail inner undercut areas of the shower body 900;

[0099] In the second stage of operation, the ejector plate 220 continues to move forward, and the movable pin 224 moves forward to the pin groove 2231 along with the reset core 222. The movable pin 224 releases the limit on the ejector 211. The ejector 211 passes through the reset core 222 and continues to move forward under the drive of the ejector plate 220. At this time, the push plate 200 remains stationary; the four inclined ejector rods 241 are driven by the ejector plate 220 and tilted forward relative to the rear template 300 and the push plate 200, and the four groups of corner core bodies 2411 move forward and shrink inward, thereby the four groups of corner core bodies 2411 move out from the four corner inner undercut areas 905, so that the four corner inclined ejector demoulding is realized and the shower body is ejected.

[0100] Preferably, in step S1, the mold is opened, and before the core bodies on both sides are synchronously retracted and core-pulled for demoulding, the tail inner cavity, the tail mounting hole and the screw thread segment are firstly demoulded in linkage through the multi-row continuous demoulding device 3, and the specific steps are: the cylinder mechanism 33 is continuously driven to drive the slider 31 to move obliquely outward; in the first stage, the slider 31 drives the slider insert 34 to demould from the inner cavity of the tail 907 by core pulling; after the slider insert 34 completes demoulding, as the cylinder mechanism 33 continues to drive the slider 31 and the shovel 32 to move outward synchronously, with the cooperation of the wedge mechanism 321, the lower hole slider 35 and the lower screw slider 36 are driven to perform oblique core pulling and demoulding from the mounting hole 908 and the screw thread segment 909 respectively.

[0101] 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 backward relative to the panel 804 to a set distance, and the first guide slide seat and the second guide slide seat 53 are relatively moved forward with the panel 804, and under the action of the inclined wedge mechanism, the upper hole sliding member 51 and the upper thread sliding member 52 are driven to be obliquely pulled out from the upper opening 906 and the upper threaded sliding member 52 are driven to be pulled out from the upper threaded section of the threaded section 909, thereby completing the synchronous core pulling and demolding of the front mold.

[0102] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the claims of the present utility model shall fall within the scope of the claims of the present utility model.

Claims

1. A shower head body mold, characterized in that: It 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, the rear mold plate is provided with a rear mold insert extending into the rear mold core, and the front mold core, the rear mold core and the rear mold insert are combined to form a mold cavity; the mold also includes a multi-position linkage inward-shrinking demoulding device and an in-mold continuous driving demoulding device; The multi-position linkage inward-shrinking demoulding device comprises a first slider, a second slider, a third slider and a side core body; The first slider extends forward and backward and penetrates the push plate, and the front end of the first slider is fixed on the front template; the third slider extends forward and backward and penetrates the rear mold insert; the second slider is limited in the front and rear directions on the rear template, and the second slider is arranged at the rear end position between the first slider and the third slider, and the second slider is respectively connected to the first slider and the third slider by an inclined wedge mechanism for sliding; the side core is connected to the front end of the third slider by an inclined wedge mechanism for sliding; The in-mold continuously driven demoulding device comprises an ejector mechanism, an inner retracting mechanism and an inclined ejector mechanism; the ejector mechanism comprises an ejector plate, an ejector, a reset core and a reset sleeve; the reset sleeve is arranged on the rear template, the reset core is movably arranged in the reset sleeve, 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 is arranged on the ejector plate and the front end extends into the reset core from the rear end; a movable pin for limiting the ejector is installed on the reset core, and a pin groove for the movable pin to shift outward is arranged in the reset sleeve; the inner retracting mechanism It includes a head position piece and a tail position piece, which are respectively slidably connected on the side of the rear mold insert by an inclined wedge mechanism, and the rear ends of the head position piece and the tail position piece are supported and limited by a push plate; the inclined ejector mechanism includes four inclined ejector rods distributed at four corners, and the rear end of each inclined ejector rod is supported on the ejector pin plate in a manner that can be adjusted toward the center, and each inclined ejector rod passes through the rear mold plate and the push plate in sequence to the front end of the rear mold insert, and the front end of each inclined ejector rod is provided with an angle core body.

2. A shower head body mold according to claim 1, characterized in that: The rear end of the head position piece is horizontally arranged, and a horizontal limit portion is formed on the corresponding push plate; the rear end of the tail position piece is tilted forward outward, and an inclined limit portion is formed on the corresponding push plate.

3. The shower head body mold according to claim 1, characterized in that: The mold also includes a multi-row continuous demoulding device, which includes a slider and a shovel arranged adjacent to each other. The outer end of the slider is connected to a cylinder mechanism that drives it to slide inward and outward directions, and the inner end of the slider is connected to a slider insert; the inner end of the shovel is connected to a lower hole slider and a lower screw slider through an inclined wedge mechanism, and a delay linkage mechanism is provided between the shovel and the slider, which is driven by the slider to delay the shovel and slide together.

4. A shower head body mold according to claim 3, characterized in that: The delayed linkage mechanism includes a passive unit arranged on the shovel and an active unit arranged on the slider; the passive unit includes a passive inner limit part and a passive outer limit part arranged to maintain an inner and outer spacing, 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.

5. A shower head body mold according to claim 4, characterized in that: The outer end of the shovel forms the passive inner limit portion, and the inner end of the slider is limited to the rear of the outer end of the shovel to form the active inner limit portion; the outer end of the shovel is connected to the delay rod, and the end of the delay rod protrudes to form a passive outer limit portion, and the slider is formed with the active outer limit portion that slides back and forth along the delay rod and is limited by the passive outer limit portion.

6. A shower head body mold according to claim 3, characterized in that: The slider is installed in the slider seat, and a guide groove is provided in the slider seat for the slider to slide back and forth; the cylinder mechanism is provided with a cylinder joint, and a joint movable groove is formed at the rear end of the slider, and the cylinder joint can be movably installed in the joint movable groove inward and outward; a self-locking block is movably installed at 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.

7. The shower head body mold according to claim 1, characterized in that: The mold also includes a front demoulding device arranged in the front template and a panel arranged on the front side of the front template, and an opening and closing buffer mechanism is arranged between the front template and the panel; the front demoulding device includes an upper hole slider, a first guide slide, an upper screw slider and a second guide slide; the rear ends of the upper hole slider and the upper screw slider extend obliquely into the front mold core respectively, the upper hole slider is connected to the first guide slide by an inclined wedge mechanism, the upper screw slider is connected to the second guide slide by an inclined wedge mechanism, and the front ends of the first guide slide and the second guide slide are both connected to the panel.

8. A shower head body mold according to claim 7, characterized in that: The rear end of the first guide slide is provided with a first guide block for guiding the upper hole sliding member, and the rear end of the second guide slide is provided with a second guide block for guiding the upper screw thread sliding member.

9. A shower head body mold according to claim 7, characterized in that: The opening and closing buffer mechanism comprises a plurality of high-strength rubber groups and a plurality of buffer spring groups which are arranged between the front template and the panel.

10. The shower head body mold according to claim 1, characterized in that: The ejector plate is provided with an adjusting slot for the rear end of the rod to be adjusted toward the center.

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