Multi-position linkage internal shrinkage demolding device

Abstract

The utility model discloses a multi-position linkage internal shrinkage demolding device which is arranged among a front mold plate, a push plate and a rear mold plate of a mold, and a rear mold insert is arranged on the rear mold plate; the device comprises a first slide part, a second slide part, a third slide part and a side core body, the first slide part extends front and back and penetrates through the push plate, and the front end of the first slide part is fixed to the front mold plate; the third slide part extends front and back and penetrates through the rear mold insert; the second slide piece is arranged on the rear mold plate in a limiting manner in the front-back direction, the second slide piece is arranged at the position, close to the rear end, between the first slide piece and the third slide piece, and the second slide piece is in sliding connection with the first slide piece and the third slide piece through wedge mechanisms; and the side core body is connected to the front end of the third slide part in a sliding manner by adopting a wedge mechanism. The device is simple and ingenious in structural design and small in occupied space, internal shrinkage demolding is synchronously achieved while the mold is opened, and demolding operation is simple, stable and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a multi-position linkage inward shrinking demoulding device. 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 diverse presentation of the integrated structure of the shower head body.

[0003] At present, ordinary shower heads are round in shape, 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, shower heads with square bodies have appeared. The square bodies have square heads, with a round assembly hole designed on the square heads, forming a connecting part that plays a transitional role between the square and the round and constitutes an internal undercut structure. The current structural 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. In view of this, the applicant of this case conducted in-depth research on the above-mentioned problems, and proposed a shower body mold that can achieve one-time molding of a heterosexual shower body with an internal undercut structure, and accordingly proposed a multi-position linkage inward-shrinking demoulding device, which resulted in this case. Utility Model Content

[0004] The utility model aims to provide a multi-position linkage inward-shrinking demoulding device, which has a novel and concise structural design and realizes an effective demoulding effect of the inner inverted structure on the side of a shower body.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A multi-position linkage inward-shrinking demoulding device is arranged between the front template, the push plate and the rear template of the mold, and the rear template is provided with a rear mold insert; the device comprises a first slider, a second slider, a third slider and a side core body; the first slider extends front and back and penetrates the push plate, and the front end of the first slider is fixed on the front template; the third slider extends front and back and penetrates the rear mold insert; the second slider is set on the rear template as a front and rear limiter, the second slider is arranged between the first slider and the third slider at the rear end position, 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 body is connected to the front end of the third slider by an inclined wedge mechanism for sliding.

[0007] The third slide member comprises a slide body and a lower inclined wedge joint, the front end of the slide body forms an upper inclined wedge portion, and the lower inclined wedge joint is locked at the rear end of the slide body.

[0008] The left and right ends of the second positioning member are respectively formed with a first oblique wedge portion and a second oblique wedge portion, and a yielding groove is provided in the middle of the second oblique wedge portion.

[0009] The second positioning member is provided with a limiting edge which is beneficial for limiting the second positioning member in the front-rear direction.

[0010] The rear end of the side core body is slidably arranged on the rear mold insert in a left-right manner by using a mortise and tenon joint.

[0011] After adopting the above scheme, the beneficial effect of the present invention, a multi-position linkage inward-shrinking demoulding device, compared with the prior art is that the present invention adopts a multi-position linkage method to realize the effective demoulding effect of the inner inverted buckle structure on the side of the shower body. The side core body is placed in the inner inverted buckle area on the side of the shower body. When demoulding, the rear template and the push plate open the mold backward, and the front template drives the first row of members to slide forward relatively. Under the cooperation of the oblique wedge connection of the second row of members, the third row of members is driven to slide backward, and finally the side core body is driven to shrink inward, realizing the effective demoulding of the inner inverted buckle area on the side of the shower body. The structural design of the present invention, a multi-position linkage inward-shrinking demoulding device, is simple and smart, and occupies little space. It can realize the inward-shrinking demoulding synchronously while the mold is opened, and the demoulding operation is simple, stable and efficient. In specific applications, two side inverted buckle structures are formed on the left and right sides of the shower body. The present invention can be designed with two symmetrical groups to achieve a synchronous demoulding effect on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the novel demoulding device;

[0013] Figure 2 yes Figure 1 Exploded view;

[0014] Figure 3 It is a cross-sectional view of the novel demoulding device;

[0015] Figure 4 The present invention is a structural schematic diagram of a shower product which is demoulded by using the novel demoulding device.

[0016] Description of symbols

[0017] Push plate 200, push plate through groove 201, rear mold core 500, rear mold insert 600, insert through groove 601, 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;

[0018] The first positioning member 11 , the second positioning member 12 , the inclined wedge mechanism 121 / 122 , the clearance groove 123 , the limiting edge 124 , the third positioning member 13 , the positioning body 131 , the lower inclined wedge joint 132 , the side core 14 , and the inclined wedge mechanism 141 . DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] This case involves a multi-position linkage shrinking demoulding device 1, such as Figure 1-3 As shown, it is arranged between the front mold plate, the push plate 200 and the rear mold plate of the mold, the push plate 200 is provided with a rear mold core 500, and the rear mold plate is provided with a rear mold insert 600 extending into the rear mold core 500. The front mold plate, the push plate 200 and the rear mold plate of the mold are arranged in front and back, that is, corresponding to Figure 1 When the mold is in the mold-closing state, the rear mold core 500 and the rear mold insert 600 form the rear half of the mold cavity.

[0021] The demoulding object of the present invention is a shower head body 900. Figure 4 As shown, the overall shape is a square structure, and a circular hole 901 is formed at the water outlet position through an integrally formed inner undercut edge. The integrally formed inner undercut edge is a closed-loop structure with irregular size. The inner undercut edge is divided into three groups with a total 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. The new multi-position linkage shrinking demoulding device 1 is used to achieve effective demoulding of the two side inner undercut areas 902. In order to achieve synchronous demoulding of the two side inner undercut areas 902, the new device is provided with two symmetrical groups.

[0022] The multi-position linkage shrinking demoulding device 1 includes 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 1 The third slider 13 extends forward and backward through the rear mold insert 600, and the rear mold insert 600 is provided with an insert through groove 601 for the third slider 13 to pass through.

[0023] The second positioning member 12 is formed on the rear template (not shown) in the front-to-back direction ( Figure 1The 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).

[0024] like Figure 3 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 and the push plate 200 are opened backward, and the front mold plate drives the first slider 11 to move forward relatively ( Figure 3 The third slider 13 moves backward ( Figure 3 The side core 14 is finally driven to shrink inwards, thereby effectively demoulding the inner undercut area of ​​the side edge of the shower body. In practice, two symmetrical sets of multi-position linkage inward shrinking demoulding devices 1 are operated synchronously, and the inner undercut area 902 on both sides of the shower body is synchronously shrunk and demoulded while the mold is opened. The novel multi-position linkage inward shrinking demoulding device 1 has a simple and smart structural design, occupies a small space, and has the characteristics of flexible, simple, stable and efficient demoulding operation.

[0025] Preferably, in order to facilitate structural compactness and easy assembly in a small space, 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.

[0026] Preferably, corresponding to the design of the inclined wedge mechanism 121 / 122, the left and right ends of the second slider 12 are respectively formed with a first inclined wedge portion connected to the first slider 12 and a second inclined wedge portion connected to the third slider 13, wherein a clearance groove 123 is provided in the middle of the second inclined wedge portion to facilitate the assembly and locking of the lower inclined wedge joint 132. The first inclined wedge portion and the second inclined wedge portion are distributed in an eight-shaped shape, corresponding to the second slider having a trapezoidal structure with the upper bottom facing forward and the lower bottom facing backward.

[0027] Preferably, in order to facilitate the restricted setting of the second positioning member 12 on the rear template in the front-to-back direction, limiting edges 124 are provided on both sides of the second positioning member 12 .

[0028] Preferably, the side core 14 is movably connected to the rear mold insert 600 in such a manner that the rear end of the side core 14 is slidably disposed on the rear mold insert 600 left and right by means of mortise and tenon joints.

[0029] The above description is only the 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 multi-position linkage shrinking demoulding device, characterized in that: The device is arranged between the front mold plate, the push plate and the rear mold plate of the mold, and the rear mold insert is arranged on the rear mold plate; the 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 connection; the side core is connected to the front end of the third slider by an inclined wedge mechanism for sliding connection.

2. A multi-position linkage shrinking demoulding device as claimed in claim 1, characterized in that: The third slide member comprises a slide body and a lower inclined wedge joint, the front end of the slide body forms an upper inclined wedge portion, and the lower inclined wedge joint is locked at the rear end of the slide body.

3. A multi-position linkage shrinking demoulding device as claimed in claim 2, characterized in that: The left and right ends of the second positioning member are respectively formed with a first oblique wedge portion and a second oblique wedge portion, and a yielding groove is provided in the middle of the second oblique wedge portion.

4. A multi-position linkage shrinking demoulding device as claimed in claim 1, characterized in that: The second positioning member is provided with a limiting edge which is beneficial for limiting the second positioning member in the front-rear direction.

5. A multi-position linkage shrinking demoulding device as claimed in claim 1, characterized in that: The rear end of the side core body is slidably arranged on the rear mold insert in a left-right manner by using a mortise and tenon joint.

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