CN111086166A - Injection mould - Google Patents

Abstract

The invention provides an injection mold which comprises an inclined top structure, an ejector plate and an inclined top demolding mechanism, wherein the inclined top structure comprises an inclined ejector rod and an inclined ejector block, the inclined top demolding mechanism comprises a fixed seat, a sliding seat, a guide seat and an insert, the guide seat is provided with a track, the track comprises a straight line section and an oblique line section, and a slide way is arranged in the sliding seat. The inclined line segment and the slide way are arranged to respectively extend towards the two sides of the straight line segment in an inclined mode, when the ejector plate pushes the insert to move forwards at the inclined line segment, the insert drives the sliding seat to move along the inclined line segment, the sliding seat can move towards one side of the guide seat relative to the fixed seat, the fixed seat is slidably installed in the slide way, the slide way extends towards the direction far away from the guide seat in an inclined mode, the sliding seat can move to push the fixed seat to drive the inclined ejector rod to move forwards more quickly, the forward moving distance of the inclined ejector rod relative to the ejector plate is longer, and the ejection stroke of the inclined ejector structure is increased, so that normal demolding and core pulling.

Description

Injection mould

Technical Field

The invention belongs to the field of molds, and particularly relates to an injection mold.

Background

The plastic products are generally provided with a reverse-buckling and buckling structure on the end surface (or side surface). The mold for manufacturing the product can be used for demolding by adopting an inclined ejection structure, the design of the inclined ejection structure is relatively simple in process, and the cost is lower. The mould of this kind of product preparation generally includes roof, front mould, back mould, backing plate, pushes up the structure to one side, thimble board, extension board and bottom plate in proper order, and the structure slope of pushing up to one side is installed in the back mould, and the top of pushing up the structure to one side can set up oblique kicking block, sets up the outer knot face of gluing that corresponds with back-off position on the product on the kicking block to one side, and the front mould forms the die cavity of preparation product with back mould and the cooperation of oblique kicking block. When the front mold and the rear mold are opened, the ejector rod or the oil cylinder pushes the ejector plate to move forward and drive the inclined ejector structure to move forward obliquely, the inclined ejector structure and the rear mold move relatively to each other, so that the inclined ejector structure is pushed forward obliquely along a certain angle, after a forward stroke, the outer buckle rubber surface on the inclined ejector block is separated from the upper back buckle of a product, and the product rubber position demoulding and core pulling in the side direction is completed, so that the product can be taken out smoothly.

However, when the ejector plate stroke is short, the ejector stroke of the pitched roof structure is also short, and the pitched roof structure cannot complete the demolding; particularly, in some molds with elastic plate structures, when the molds are opened, the stroke of the ejector plate is short, so that the inclined ejector structure cannot complete normal demolding.

Disclosure of Invention

The invention aims to provide an injection mold, which solves the problem that a slanted ejecting structure cannot complete normal demolding when an ejector plate in the injection mold has a short stroke in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an injection mold, including roof, front mould, back mould, backing plate, oblique top structure, thimble board, extension board and bottom plate, oblique top structure includes the oblique ejector pin that the slope set up and locates the oblique kicking block of oblique ejector pin front end, the front mould, back mould and the die cavity that the oblique kicking block compound die formed injection product, the front mould install in on the roof, the back mould install in on the backing plate, the support plate will the periphery of backing plate support on the bottom plate, the thimble board is arranged in on the bottom plate, it has the trompil that supplies the oblique ejector pin to pass to open in the back mould, injection mold still includes the oblique top demoulding mechanism that is used for guiding the removal of drawing core of patterns of oblique top structure, the oblique top demoulding mechanism include with the fixing base that the lower extreme of oblique ejector pin links to each other, be used for driving the fixing base removes, be equipped with orbital guide holder and be used for driving the slide is followed the mold insert of orbital motion, the guide seat is fixed on the bottom plate, the track comprises a straight line section and a slope line section, the straight line section extends from the bottom plate towards the top plate in a straight line mode, the slope line section extends forwards in an inclined mode from the front end of the straight line section towards one side far away from the sliding seat, the insert is installed on the track in a sliding mode, the insert is connected with the sliding seat, a slide way used for containing and guiding the fixing seat to move is arranged in the sliding seat, the slide way extends forwards in an inclined mode from one side close to the insert towards one side far away from the insert, and the sliding seat is installed on the ejector plate in.

Further, the slant-top demolding mechanism further comprises a guide rail used for guiding the sliding seat to move towards or away from the guide seat, the guide rail is installed on the ejector plate, and the sliding seat is installed on the guide rail in a sliding mode.

Furthermore, the number of the guide rails is two, and the two guide rails are respectively arranged on two sides of the sliding seat.

Furthermore, a first groove is formed in one corner of the lower side of each guide rail, the first groove penetrates through the guide rail along the length direction of the guide rail, the position of each first groove on one side, close to the sliding seat, of the guide rail is provided, and first sliding rails extending into the two first grooves are respectively arranged on two sides of the sliding seat in a protruding mode.

Furthermore, the insert is arranged between the two guide rails, and second slide rails extending into the two first grooves are respectively arranged on two sides of the insert in a protruding mode.

Furthermore, the cross section of the track is T-shaped, a T-shaped groove with the T-shaped cross section is formed in the insert, the T-shaped groove is a union of a straight groove and an inclined groove, the straight groove is matched with the straight line section, and the inclined groove is matched with the inclined line section.

Furthermore, second grooves are formed in the lower edges of the two side walls of the slide way, and third slide rails extending into the two second grooves are arranged on the two sides of the fixing seat in a protruding mode respectively.

Furthermore, a through hole for the lower end of the inclined ejector rod to pass through is formed in the fixing seat, and a long hole for the lower end of the inclined ejector rod to pass through is formed in the bottom of the slide seat.

Further, the pitched roof structure further comprises a pitched roof sleeve used for guiding the pitched roof rod to move along the length direction of the pitched roof rod when the insert slides along the pitched line segment, and the pitched roof sleeve is sleeved on the pitched roof rod.

Further, the angle structure still includes and is used for keeping out the back mould is in order to inject angle cover shift position limiting plate, the limiting plate with angle cover links to each other.

The injection mold provided by the invention has the beneficial effects that: compared with the prior art, the invention arranges the guide seat, the insert and the slide seat which are provided with the track, the track comprises a straight line section and an inclined line section, the slide seat is internally provided with the slide way, the inclined line section and the slide way respectively extend towards the two sides of the straight line section in an inclined and forward manner, and the ejector plate pushes the slide seat and the insert to move when the mould is opened; when the thimble board promoted the mold insert when oblique line section department moves forward, the mold insert drove the slide and moves along oblique line section this moment, then the slide can move towards guide holder one side relative to the fixing base, because fixing base slidable mounting is in the slide, and the slide extends forward towards the direction slope of keeping away from the guide holder, then the slide can move and promote the fixing base and drive oblique ejector pin and move forward faster, and then make oblique ejector pin for the thimble board antedisplacement distance longer, increase the ejecting stroke of oblique top structure promptly, loose core in order to realize normally drawing of patterns.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a product provided by the invention.

FIG. 2 is a schematic diagram of a portion of an injection mold according to an embodiment of the present invention;

FIG. 3 is a schematic view of a portion of the injection mold of FIG. 2;

fig. 4 is a first structural schematic diagram of a lifter demolding mechanism and a lifter structure according to an embodiment of the present invention;

fig. 5 is a second structural schematic diagram of the lifter demolding mechanism and the lifter structure according to the embodiment of the present invention;

fig. 6 is a schematic diagram of a demolding process of the lifter demolding mechanism and the lifter structure according to the embodiment of the present invention, where fig. a is a schematic diagram of a longer structure in a mold closing state, fig. b is a schematic diagram of a whole slider, an insert, and the lifter structure after moving along a straight line section on a rail guide of a guide base, and fig. c is a schematic diagram of a mold demolding of the lifter structure after the whole slider, the insert, and the insert move along a diagonal section on the rail guide of the guide base;

FIG. 7 is a first sectional view of the ejector stripper mechanism of FIG. 5;

FIG. 8 is a second sectional view of the ejector stripper mechanism of FIG. 5;

fig. 9 is an exploded view of the ejector stripper mechanism of fig. 5;

fig. 10 is a second exploded view of the ejector stripper mechanism of fig. 5;

FIG. 11 is a schematic cross-sectional view of the insert of FIG. 10;

fig. 12 is a schematic structural view of the bidirectional demolding mechanism in fig. 3;

fig. 13 is an exploded view of the first two-way ejector mechanism of fig. 12;

fig. 14 is an exploded structural view of the two-way mold releasing mechanism of fig. 12.

Wherein, in the drawings, the reference numerals are mainly as follows:

11-back mould; 12-a backing plate; 13-an ejector plate; 14-a support plate; 15-a base plate;

20-a pitched roof structure; 21-a slanted ejecting block; 22-oblique ejector rods; 23-inclined top sleeve; 24-a limiting plate; 25-; 26-a water-motion link;

30-a pitched roof demoulding mechanism; 31-a guide seat; 311-track; 312-straight line segment; 313-diagonal segment; 32-a fixed seat; 321-a third slide rail; 322-a through hole; 33-a slide; 331-a slide; 332-a second groove; 333-long hole; 334-a first sliding rail; 34-an insert; 340-T type groove; 341-chute; 342-straight groove; 348 — a second slide rail; 35-a guide rail; 351-a first groove;

40-a bidirectional demolding mechanism; 41-a first model block; 411-a first mounting groove; 42-a first slider; 43-a first guide block; 431-a first sliding slot; 44-first shovel chicken; 441-a first guide rail; 45-a first insert; 51-a second model block; 511-a second mounting groove; 52-a second slide; 53-second guide block; 531-T type sliding slot; 54-second shovel chicken; 541-a second guide rail; 55-a second insert;

90-product; 91-end face; 92-side plate; 93-pinch plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, for the sake of description of the solution, it is defined that one end of the front mold and the top plate is a front end or an upper end, one end of the rear mold and the bottom plate is a rear end or a lower end, and a direction from the top plate to the bottom plate is a top-down direction or a front-to-back direction. This definition of orientation or positional relationship is merely for convenience in describing the present invention and for simplicity in description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the present invention.

Referring to fig. 1, a product structure of the injection mold of the present invention suitable for injection molding is schematically shown, and the product 90 has an end surface 91.

Referring to fig. 1 to 11, the injection mold according to the present invention will now be described. The injection mold comprises a top plate (not shown in the figure), a front mold (not shown in the figure), a rear mold 11, a backing plate 12, an inclined ejection structure 20, an ejector plate 13, a support plate 14, a bottom plate 15 and an inclined ejection demolding mechanism 30; wherein: the top plate, the front die, the rear die 11, the backing plate 12, the support plate 14 and the bottom plate 15 are sequentially arranged, the front die is arranged on the top plate, the rear die 11 is arranged on the backing plate 12, the support plate 14 supports the periphery of the backing plate 12 on the bottom plate 15, and the ejector plate 13 is arranged on the bottom plate 15; the pitched roof structure 20 comprises a pitched roof rod 22 which is obliquely arranged and a pitched roof block 21 which is arranged at the front end of the pitched roof rod 22, and the front die, the rear die 11 and the pitched roof block 21 are assembled to form a cavity of the injection product 90, so that the injection product 90 can be manufactured. An opening (not shown) is formed in the rear mold 11 for the diagonal ejector 22 to pass through so that the ejector plate 13 can push the diagonal ejector 22 to move. The pitched roof demoulding mechanism 30 is used for guiding the pitched roof structure 20 to move the demoulding core pulling when the mould is opened.

The pitched roof demolding mechanism 30 comprises a fixed seat 32, a sliding seat 33, a guide seat 31 and an insert 34; the guide seat 31 is provided with a track 311, and the guide seat 31 is fixed on the bottom plate 15; the fixed seat 32 is connected with the lower end of the oblique mandril 22; the sliding seat 33 is arranged on the ejector plate 13 in a sliding way, so that the ejector plate 13 pushes the sliding seat 33 to move; a slide 331 is arranged in the slide 33, the fixed seat 32 is slidably mounted in the slide 331, and the slide 33 drives the fixed seat 32 to move, so as to drive the inclined ejector rod 22 to move; the fixed seat 32 can move in the slide 331 of the slide 33, that is, the slide 331 is used for accommodating and guiding the fixed seat 32 to move; the insert 34 is slidably mounted on the rail 311, the insert 34 is connected to the slide 33, and the slide 33 is moved along the rail 311 by the insert 34 when the insert 34 moves along the rail 311. The track 311 includes a straight line segment 312 and a diagonal line segment 313, the straight line segment 312 extends straight from the bottom plate 15 toward the top plate; the inclined line segment 313 extends obliquely forward from the front end of the straight line segment 312 toward the side away from the slider 33; the slide 331 extends obliquely forward from a side close to the insert 34 toward a side remote from the insert 34.

Referring to fig. 3, 6 to 10, when the injection mold is opened, the ejector plate 13 pushes the slide 33 and the insert 34 to move along the straight line 312 of the track 311 of the guide seat 31, the lifter-stripper mechanism 30 will drive the lifter structure 20 to move forward integrally, and the product 90 also moves forward integrally, at this time, the lifter block 21 is not separated from the product 90. The ejector plate 13 continues to push the slide seat 33 and the insert 34 to move forward, when the insert 34 moves forward at the oblique line section 313, at this time, the insert 34 drives the slide seat 33 to move along the oblique line section 313, the slide seat 33 will move toward one side of the guide seat 31 relative to the fixed seat 32, because the fixed seat 32 is slidably installed in the slide way 331, and the slide way 331 extends obliquely forward toward a direction away from the guide seat 31, the slide seat 33 will move to push the fixed seat 32 to drive the inclined ejector rod 22 to move forward more quickly, and further the inclined ejector rod 22 moves forward for a longer distance relative to the ejector plate 13, so that the ejection stroke is increased, and demolding is completed.

Compared with the prior art, the injection mold provided by the invention has the advantages that the guide seat 31 with the track 311, the insert 34 and the slide seat 33 are arranged, the track 311 is provided with the straight line section 312 and the oblique line section 313, the slide seat 33 is provided with the slide 331, the oblique line section 313 and the slide 331 respectively extend forwards in an inclined manner towards two sides of the straight line section 312, and the ejector plate 13 pushes the slide seat 33 and the insert 34 to move when the mold is opened; when the ejector plate 13 pushes the insert 34 to move forward at the oblique line section 313, at this time, the insert 34 drives the slide seat 33 to move along the oblique line section 313, the slide seat 33 will move toward one side of the guide seat 31 relative to the fixed seat 32, because the fixed seat 32 is slidably mounted in the slide way 331, and the slide way 331 extends obliquely forward in a direction away from the guide seat 31, the slide seat 33 will move to push the fixed seat 32 to drive the oblique ejector rod 22 to move forward more quickly, and further the oblique ejector rod 22 moves forward for a longer distance relative to the ejector plate 13, that is, the ejection stroke of the oblique ejector structure 20 is increased, so as to realize normal demolding and core pulling; the inclined ejection demoulding mechanism 30 of the injection mould occupies small space, can ensure that the inclined ejector rod 22 can be ejected smoothly when the mould is opened and closed, and cannot be blocked. The injection mold is particularly suitable for the core pulling occasions of the inner side surface, the side surface and the end surface of a large mold.

Further, referring to fig. 1, the end surface 91 of the product 90 is provided with an inverted buckle 911. Referring to fig. 3 and 4, for the product 90 with the inverted 911 structure on the side surface or end surface 91, the outer plastic surface 211 corresponding to the inverted 911 portion of the end surface 91 of the product 90 is disposed on one side of the inclined top block 21, and the injection mold is also suitable for the situation where the side surface or end surface 91 of the product 90 is provided with the inverted 911 structure for core pulling.

Further, referring to fig. 4 to 10, as an embodiment of the injection mold provided by the present invention, the lifter-stripper mechanism 30 further includes a guide rail 35, the guide rail 35 is mounted on the ejector plate 13, the sliding seat 33 is slidably mounted on the guide rail 35, and the guide rail 35 is used for guiding the sliding seat 33 to move toward or away from the guide seat 31; the guide rails 35 are provided to better guide the movement of the sliding base 33, so that the movement of the sliding base 33 is smoother, and the movement of the pitched roof structure 20 is better pushed.

Further, there are two guide rails 35, and the two guide rails 35 are respectively disposed on two sides of the sliding seat 33, so that the sliding seat 33 is clamped by the two guide rails 35 to guide the sliding seat 33 to move. In other embodiments, a sliding slot may be provided on the sliding base 33, and the guiding rail 35 may be a T-shaped rail, so that the sliding base 33 and the guiding rail 35 are connected in a matching manner.

Furthermore, a first groove 351 is formed in one corner of the lower side of each guide rail 35, the first groove 351 penetrates through the guide rail 35 along the length direction of the guide rail 35, the position of each first groove 351 on the guide rail 35 is close to one side of the sliding seat 33, the two sides of the sliding seat 33 are respectively provided with a first sliding rail 334 protruding into the two first grooves 351, the sliding seat 33 can be better clamped by the two guide rails 35 through the structure, the sliding seat 33 can be prevented from being separated from the guide rail 35, and meanwhile, the structure is convenient to assemble.

Further, referring to fig. 4 to 10, as an embodiment of the injection mold provided by the present invention, the insert 34 is disposed between the two guide rails 35, and two sides of the insert 34 are respectively protruded with second slide rails 348 extending into the two first grooves 351, so that the two guide rails 35 can also be used to guide the insert 34 to move, so that the insert 34 can move smoothly.

Further, referring to fig. 8 to 11, as a specific embodiment of the injection mold provided by the present invention, the cross section of the track 311 is T-shaped, the insert 34 is provided with a T-shaped groove 340 having a T-shaped cross section, the T-shaped groove 340 is a union of a straight groove 342 and a diagonal groove 341, the straight groove 342 is matched with the straight line section 312, the diagonal groove 341 is matched with the diagonal line section 313, and the union of the straight groove 342 and the diagonal groove 341 of the T-shaped groove 340 means: for the upper part of the bottom surface of the T-shaped groove 340 to be a plane 343 parallel to the straight line segment 312 of the track 311, and the lower part of the top surface of the T-shaped groove 340 opposite to the bottom surface to be a plane 346 parallel to the straight line segment 312 of the track 311, a straight groove 342 matching with the straight line segment 312 on the track 311 is formed between the two planes (343, 346) parallel to the straight line segment 312; the lower part of the bottom surface of the T-shaped groove 340 is a plane 344 parallel to the oblique line section 313 of the track 311, and the upper part of the top surface of the T-shaped groove 340 opposite to the bottom surface is a plane 345 parallel to the oblique line section 313 of the track 311, so that an oblique groove 341 matched with the oblique line section 313 on the track 311 is formed between the parallel planes (344, 345) of the two oblique line sections 313, and the T-shaped groove 340 is a parallel structure formed by the straight groove 342 and the oblique groove 341. This configuration facilitates a smooth transition of the insert 34 from the straight section 312 to the sloped section 313 on the track 311, allowing the insert 34 to slide smoothly along the track 311. In other embodiments, the rail 311 may be a sliding groove provided on the guide seat 31, and the insert 34 is provided with a sliding wheel, which is disposed in the sliding groove to guide the insert 34 to move along the sliding groove.

Further, referring to fig. 7 to 10, as a specific embodiment of the injection mold provided by the present invention, the lower edges of the two side walls of the sliding channel 331 are provided with second grooves 332, and the two sides of the fixing base 32 are respectively provided with a third sliding rail 321 protruding into the two second grooves 332, so that after the fixing base 32 is placed in the sliding channel 331, the fixing base 32 can be guided to move, and meanwhile, the fixing base 32 can be limited, thereby ensuring that the fixing base 32 is more stable and reducing the shaking of the fixing base 32.

Further, referring to fig. 4 to 10, as an embodiment of the injection mold provided by the present invention, a through hole 322 for the lower end of the inclined top bar 22 to pass through is formed on the fixing seat 32, and a long hole 333 for the lower end of the inclined top bar 22 to pass through is formed at the bottom of the slide 331 on the slide 33. This configuration may facilitate the attachment of the water transport link 26 at the lower end of the lifter bar 22.

Further, referring to fig. 4 to 6, as a specific embodiment of the injection mold provided by the present invention, the lifter structure 20 further includes a lifter sleeve 23, the lifter sleeve 23 is sleeved on the lifter 22, when the insert 34 slides along the oblique line section 313, the lifter 22 is prevented from translating, and the lifter 22 moves along the length direction of the lifter 22, so as to push the lifter block 21 to be demolded; meanwhile, the inclined ejector sleeve 23 can also play a role in protecting the inclined ejector rod 22. In other embodiments, the pitched roof structure 20 translates in the bore of the back mold 11 as the insert 34 slides along the straight section 312 of the track 311; when the insert 34 moves to the front end of the straight line section 312, the inner wall of the opening near the front side can stop the lifter rod 22, and further slide along the oblique line section 313 in the insert 34, and can also prevent the lifter rod 22 from translating, so that the lifter rod 22 moves along the length direction of the lifter rod 22, and further the lifter block 21 is pushed to be demolded.

Further, referring to fig. 4 to 6, as an embodiment of the injection mold provided by the present invention, the slanted ejecting structure 20 further includes a position limiting plate 24 for blocking the rear mold 11 to limit a moving position of the slanted ejecting sleeve 23, and the position limiting plate 24 is connected to the slanted ejecting sleeve 23. The limit plate 24 is arranged, when the insert 34 slides along the oblique line section 313, the oblique jacking sleeve 23 can be fixed, and the oblique jacking sleeve 23 can better guide the oblique jacking rod 22 to move; and this structure can reduce the machining precision of the open hole in the rear mold 11 and facilitate assembly.

Further, install connecting piece 25 on limiting plate 24 to in order can install limiting plate 24 on dog (not shown in the figure), correspond in back die 11 and set up the depressed groove (not shown in the figure), so that when mold insert 34 slided along slash section 313, the bottom surface of depressed groove can backstop this dog, and then backstop limiting plate 24, and this structure can more conveniently be assembled, makes oblique top cover 23 keep steady simultaneously, avoids oblique top cover 23 to rotate.

Referring to fig. 1, a side plate 92 is disposed on one side of the product 90, a buckle plate 93 is protruded from an edge of the side plate 92, and a reverse buckle structure is disposed on an outer side surface of the buckle plate 93.

Referring to fig. 1 to 3 and 12 to 14, the injection mold further includes a bidirectional mold-releasing mechanism 40, the bidirectional mold-releasing mechanism 40 includes a first mold block 41, a second mold block 51, a first slide block 42, a second slide block 52, a first guide block 43, a second guide block 53, a first shovel chicken 44, a second shovel chicken 54, a first insert 45 and a second insert 55; the first slider 42 is arranged at the lower end of the first mold block 41, and the second slider 52 is arranged at the lower end of the second mold block 51; the first mold block 41 has a glue surface corresponding to the inside surface of the side plate 92 of the product 90, and the second mold block 51 has a glue surface corresponding to the outside surface of the gusset plate 93 of the side plate 92, so that when the molds are closed, the first mold block 41, the second mold block 51, the front mold and the rear mold 11 can form a cavity corresponding to the side plate 92 and the gusset plate 93 of the product 90. The first block 42 is mounted on the first guide block 43, the first block 42 is guided by the first guide block 43 to move, and further the first mold block 41 is guided to move, and the length direction of the first guide block 43 is parallel to the direction toward or away from the side plate 92, so that when the first block 42 moves along the direction of the first guide block 43 away from the side plate 92, the first guide block 43 can guide the first block 42 to move toward the direction away from the side plate 92, and further the first mold block 41 moves toward the direction away from the side plate 92. The second slide block 52 is mounted on the second guide block 53, the second slide block 52 is guided by the second guide block 53 to move, so that the second model block 51 is guided to move, the length direction of the second guide block 53 is parallel to the direction towards or away from the buckle plate 93, and when the second slide block 52 moves along the direction that the second guide block 53 is away from the buckle plate 93, the second guide block 53 can guide the second slide block 52 to move towards the direction away from the buckle plate 93, so that the second model block 51 is guided to move towards the direction away from the buckle plate 93. The first shovel chicken 44 is provided with a first guide rail 441, the first insert 45 is slidably mounted on the first guide rail 441, the first insert 45 is used for driving the first model block 41 to move along the first guide rail 441, and the first guide rail 441 extends from bottom to top and slantwise towards the direction far away from the first model block 41, so that when the first shovel chicken 44 moves downwards, the first insert 45 drives the first model block 41 to move relative to the first guide rail 441, and due to the fact that the first slide block 42 is arranged at the lower end of the first model block 41, and the first slide block 42 is mounted on the first guide block 43, the first insert 45 and the first model block 41 can be pulled to move towards the direction far away from the side plate 92 of the product 90 through the guiding effect of the first guide block 43, so that the demolding of the first model block 41 is realized; the second shovel chicken 54 is provided with a second guide rail 541, the second insert 55 is slidably mounted on the second guide rail 541, the second insert 55 is used for driving the second model block 51 to move along the second guide rail 541, the second guide rail 541 extends from bottom to top and slantwise towards the direction far away from the second model block 51, and further when the second shovel chicken 54 moves downwards, the second insert 55 drives the second model block 51 to move relative to the second guide rail 541, and due to the fact that the second slide block 52 is arranged at the lower end of the second model block 51, and the second slide block 52 is mounted on the second guide block 53, the second insert 55 and the second model block 51 can be pulled to move towards the direction far away from the buckle plate 93 of the product 90 through the guiding effect of the second guide block 53, so that demoulding of the second model block 51 is realized. The first guide block 43 and the second guide block 53 are mounted on the base plate 12, and the first scooping chicken 44 and the second scooping chicken 54 are slidably mounted on the base plate 12.

The first guide rail 441 is arranged on the first chicken shoveling 44, the second guide rail 541 is arranged on the second chicken shoveling 54, meanwhile, the first insert 34 is arranged to drive the first model block 41 to move along the first guide rail 441, and the second insert 34 is arranged to drive the second model block 51 to move along the second guide rail 541; the first guide rail 441 extends obliquely from bottom to top and faces a direction away from the first model block 41, the second guide rail 541 extends obliquely from bottom to top and faces a direction away from the second model block 51, the first guide block 43 is arranged to guide the first model block 41 to move towards a direction away from the side plate 92, and the second guide block 53 is arranged to guide the second model block 51 to move towards a direction away from the buckle plate 93; therefore, when the mold is opened, when the first shovel chicken 44 and the second shovel chicken 54 move downwards, the first model block 41 can be driven to move away from the side plate 92, and meanwhile, the second model block 51 is driven to move away from the buckle plate 93, so that demolding and core pulling are realized; the structure has high strength, avoids using the inclined top structure 20, and can also avoid the problem that the inclined top rod 22 is easy to break.

Further, referring to fig. 12 to 14, as an embodiment of the injection mold provided by the present invention, the first guide rail 441 is a first sliding groove formed on the first shovel 44, a side surface of the first shovel 44 corresponding to the first sliding groove is an inclined surface parallel to a length direction of the first sliding groove, and the first insert 45 is a first sliding rail disposed in the first sliding groove in a matching manner. The structure is convenient to process and manufacture and convenient to assemble. In other embodiments, the first guiding rail 441 may also be a protruding rail protruding from the first shovel 44, and the first insert 45 has a sliding groove matching with the protruding rail.

Further, the first mold block 41 is provided with a first mounting groove 411, and the first insert 45 is mounted in the first mounting groove 411, so that the first insert 45 is convenient to assemble, and the first insert 45 and the first mold block 41 can be separately processed, thereby reducing the processing precision and the cost. In other embodiments, the first insert 45 and the first mold block 41 can be integrally formed.

Furthermore, the cross section of the first sliding groove is T-shaped, and the cross section of the first sliding rail is T-shaped, so that when the first sliding rail is arranged in the first sliding groove, the first sliding rail can be ensured to slide stably, and the shaking of the first sliding rail is reduced.

Further, referring to fig. 12 to 14, as a second embodiment of the injection mold provided by the present invention, the second guide rail 541 is a second sliding groove formed on the second shovel 54, a side surface of the second shovel 54 corresponding to the second sliding groove is an inclined surface parallel to the length direction of the second sliding groove, and the second insert 55 is a second sliding rail disposed in the second sliding groove in a matching manner. The structure is convenient to process and manufacture and convenient to assemble. In other embodiments, the second guiding rail 541 may also be a protruding rail protruding from the second shovel 54, and the second insert 55 has a sliding groove matching with the protruding rail.

Furthermore, the second mold block 51 is provided with a second mounting groove 511, and the second insert 55 is mounted in the second mounting groove 511, so that the structure is convenient for assembling the second insert 55, and meanwhile, the second insert 55 and the second mold block 51 can be separately processed, thereby reducing the processing precision and the cost. In other embodiments, the second insert 55 and the second mold block 51 can be integrally formed.

Furthermore, the cross section of the second sliding groove is T-shaped, and the cross section of the second sliding rail is T-shaped, so that when the second sliding rail is arranged in the second sliding groove, the second sliding rail can be ensured to slide stably, and the shaking of the second sliding rail is reduced.

Further, referring to fig. 12 to 14, as two embodiments of the injection mold provided by the present invention, the first guide blocks 43 are two opposite to each other, each first guide block 43 is provided with a first sliding groove 431, each first guide block 43 penetrates through the first guide block 43 along the length direction of the first guide block 43, and two sides of the first sliding block 42 are respectively slidably disposed in the two first sliding grooves 431. The two first guide blocks 43 are provided, and the first sliding grooves 431 are formed in the first guide blocks 43, so that the processing and manufacturing are convenient, the assembly is convenient, and the first slide block 42 can be stably and well guided to move. In other embodiments, the first guide block 43 may also be provided with a slot having a T-shaped cross section, and the first sliding block 42 is slidably disposed in the slot.

Further, referring to fig. 12 to 14, as two embodiments of the injection mold provided by the present invention, the second guide block 53 is provided with a T-shaped sliding groove 531 with a T-shaped cross section, the second slider 52 is T-shaped in cross section, the second slider 52 is slidably disposed in the T-shaped sliding groove 531, and the structure can prevent the second slider 52 from shaking when the second slider 52 is disposed in the T-shaped sliding groove 531, so as to more stably guide the second slider 52 to move. In other embodiments, the second guide blocks 53 are two oppositely disposed blocks, each second guide block 53 is provided with a second sliding groove, each second guide block 53 penetrates through the second guide block 53 along the length direction of the second guide block 53, and two sides of the second sliding block 52 are respectively slidably disposed in the two second sliding grooves. The two second guide blocks 53 are provided, and the second sliding grooves are formed in the second guide blocks 53, so that the processing and manufacturing are convenient, the assembly is convenient, and the second sliding block 52 can be better stabilized and guided to move.

Further, referring to fig. 12 to 14, as two embodiments of the injection mold provided by the present invention, the first sliding block 42 and the first mold block 41 are integrally formed to ensure the connection strength between the first sliding block 42 and the first mold block 41. In other embodiments, the first slider 42 can be made separately from the first mold block 41 and then connected by fasteners.

Further, referring to fig. 12 to 14, as two embodiments of the injection mold provided by the present invention, the second slide block 52 and the second mold block 51 are integrally formed to ensure the connection strength between the second slide block 52 and the second mold block 51. In other embodiments, the second slider 52 can be made separately from the second mold block 51 and then connected by fasteners.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Injection mold, including roof, front mould, back mould, backing plate, oblique ejector pin structure, thimble board, extension board and bottom plate, oblique ejector pin that the structure set up including the slope and locate oblique kicking block of oblique ejector pin front end, the front mould the back mould reaches oblique kicking block compound die forms the die cavity of injection moulding product, the front mould install in on the roof, the back mould install in on the backing plate, the extension board will the periphery of backing plate support in on the bottom plate, the thimble board is arranged in on the bottom plate, open in the back mould and be equipped with the confession the trompil that oblique ejector pin passed, its characterized in that: the injection mold further comprises an inclined top demolding mechanism used for guiding the inclined top structure to move, demold and core-loose, the inclined top demolding mechanism comprises a fixing seat connected with the lower end of an inclined ejector rod, a sliding seat used for driving the fixing seat to move, a guide seat provided with a track and an insert used for driving the sliding seat to move along the track, the guide seat is fixed on the bottom plate, the track comprises a straight line section which extends linearly towards the top plate from the bottom plate and an inclined line section which extends forwards in an inclined manner from the front end of the straight line section towards one side far away from the sliding seat, the insert is slidably mounted on the track and connected with the sliding seat, a slide used for containing and guiding the fixing seat to move is arranged in the sliding seat, and the slide extends forwards in an inclined manner from one side close to the insert towards one side far away from the insert, the sliding seat is slidably mounted on the ejector plate.

2. The injection mold of claim 1, wherein: the inclined top demolding mechanism further comprises a guide rail used for guiding the sliding seat to move towards or away from the guide seat, the guide rail is installed on the ejector plate, and the sliding seat is installed on the guide rail in a sliding mode.

3. The injection mold of claim 2, wherein: the guide rail is two, and two the guide rail is located respectively the both sides of slide.

4. An injection mold according to claim 3, wherein: one corner of the lower side of each guide rail is provided with a first groove, the first grooves penetrate through the guide rails along the length direction of the guide rails, the first grooves are positioned on one side, close to the sliding seat, of the guide rails, and first sliding rails extending into the two first grooves are respectively arranged on two sides of the sliding seat in a protruding mode.

5. The injection mold of claim 4, wherein: the insert is arranged between the two guide rails, and second slide rails extending into the two first grooves are respectively arranged on two sides of the insert in a protruding mode.

6. An injection mould according to any one of claims 1 to 5, characterized in that: the cross section of the track is T-shaped, a T-shaped groove with the T-shaped cross section is formed in the insert, the T-shaped groove is a union of a straight groove and a chute, the straight groove is matched with the straight line section, and the chute is matched with the oblique line section.

7. An injection mould according to any one of claims 1 to 5, characterized in that: second grooves are formed in the lower edges of the two side walls of the slide way, and third slide rails extending into the two second grooves are arranged on the two sides of the fixing seat in a protruding mode respectively.

8. An injection mould according to any one of claims 1 to 5, characterized in that: the fixing seat is provided with a through hole for the lower end of the inclined ejector rod to pass through, and the slide seat is provided with a long hole for the lower end of the inclined ejector rod to pass through at the bottom of the slide way.

9. An injection mould according to any one of claims 1 to 5, characterized in that: the pitched roof structure further comprises a pitched roof sleeve used for guiding the pitched roof rod to move along the length direction of the pitched roof rod when the insert slides along the pitched line segment, and the pitched roof sleeve is sleeved on the pitched roof rod.

10. An injection mold according to claim 9, wherein: the inclined ejecting structure further comprises a limiting plate used for abutting against the rear die to limit the moving position of the inclined ejecting sleeve, and the limiting plate is connected with the inclined ejecting sleeve.

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