CN215320330U - Sliding block mechanism - Google Patents

Abstract

The application discloses slider mechanism, slider mechanism includes front mould subassembly and back mould subassembly, front mould subassembly includes the backup pad, first front mould and second front mould, back mould subassembly includes the back mould, a pedestal, the base is equipped with the sliding block seat, be equipped with the slider mold insert on the sliding block seat, the relative base of slider mold insert has the first position of moulding plastics of staggering, the second position of moulding plastics, when front mould subassembly matches the installation with back mould subassembly, the slider mold insert moves to first position compound die of moulding plastics and moulds plastics in order to obtain first injection moulding product under the sliding block seat drives, the slider mold insert moves to the second and moulds plastics the position back mould plastics and mould plastics position and second front mould, the back mould compound die is moulded plastics in order to obtain second injection moulding product under the drive of sliding block seat. The sliding block mechanism provided by the utility model can ensure that the sliding block insert does not need to insert the injection-molded first injection-molded product in the second injection-molding process, so that the damage to the first injection-molded product can be avoided, the yield of the product can be improved, and the sliding block mechanism is simple in structure, stable and reliable.

Description

Sliding block mechanism

Technical Field

The application relates to the technical field of injection molds, in particular to a sliding block mechanism.

Background

Many plastic products on the market are made of two or more plastic materials, and the purpose of the structural design is to make the products have beautiful appearance, and to make the structural parts made of different materials have different functions. In the actual production process, most of the products of such structures are produced by means of two-shot molds.

Therefore, for a product to be molded, which requires a recess to be formed in a side surface of the product, it is required to perform molding by performing injection molding twice through a slide insert on a rear mold. In the prior art, when a first injection material is injected, the slide block insert can be withdrawn after the first injection product is molded, and when a second injection material is injected, the slide block insert can be inserted into the first injection product again for secondary injection to form a second injection product. This kind of scheme has great defect, and the slider mold insert can penetrate and wear out the first injection moulding product that once moulds plastics and has accomplished when carrying out the second time and mould plastics, consequently can cause the damage to the structure of the first injection moulding product, influences the outward appearance of product, and the yields is not high.

SUMMERY OF THE UTILITY MODEL

The main technical problem who solves of this application provides a slider mechanism to damage the first technical problem that the product yields is not high when solving among the prior art slider mechanism secondary and moulding plastics.

In order to solve the technical problem, the application adopts a technical scheme that: there is provided a slider mechanism comprising: a front mold assembly and a rear mold assembly.

The front mold assembly comprises a support plate, a first front mold and a second front mold, wherein the first front mold and the second front mold are arranged on two sides of the support plate and connected with the support plate;

the rear die assembly comprises a rear die and a base, a sliding block seat in sliding connection with the base is arranged on the base, a sliding block insert is arranged on the sliding block seat, the sliding block insert can move relative to the rear die under the driving of the sliding block seat, and is matched with the rear die, the first front die or the second front die to carry out die closing or die withdrawing;

the slide block insert is provided with a first injection molding position, a second injection molding position and a withdrawing position which are staggered relative to the base, when the front mold assembly and the rear mold assembly are installed in a matched mode, the slide block insert is driven by the slide block seat to move to the first injection molding position, and the first front mold, the rear mold and the slide block insert are matched and injected at the first injection molding position to obtain a first injection molding product;

the slide block insert is driven by the slide block seat to move to a second injection molding position, the first front mold is withdrawn at the second injection molding position, and the second front mold is matched with the rear mold and the slide block insert at the second injection molding position for injection molding to obtain a second injection molding product;

and the sliding block insert is driven by the sliding block seat to move to a withdrawing position so as to realize the die withdrawing of the second front die and the rear die.

According to a specific embodiment of the application, the slider seat is further provided with a first limiting groove, a second limiting groove and a third limiting groove, the base is provided with a limiting post matched with the first limiting groove, the second limiting groove and the third limiting groove, the first limiting groove, the second limiting groove and the third limiting groove respectively correspond to a first injection molding position, a second injection molding position and a withdrawal position, the limiting post is accommodated in the first limiting groove, and the slider insert is in matched connection with the first front mold and the rear mold at the first injection molding position.

According to a specific embodiment of the application, the supporting plate is further provided with a first shifting block and a second shifting block, the first shifting block and the second shifting block are respectively arranged on two sides of the supporting plate and are adjacent to the first front die and the second front die, and the first shifting block and the second shifting block are used for abutting against the sliding block seat to drive the sliding block insert to move on the base.

According to a specific embodiment of the present application, the slider seat is further provided with a first groove and a second groove corresponding to the first shifting block and the second shifting block, the support plate is disposed above the base, the first shifting block and the second shifting block are respectively disposed above the first groove and the second groove, and when the first shifting block is accommodated in the first groove, the first front mold is closed with the slider insert and the rear mold at a first injection position; and when the second shifting block is accommodated in the second groove, the second front die is matched with the slide block insert and the rear die at a second injection molding position.

According to a specific embodiment of this application, still be equipped with in the backup pad and support and prop up the driving piece of first shifting block with the second shifting block, the driving piece include with the pivot of first shifting block with the pin joint of second shifting block, the driving piece is used for the drive first shifting block with the second shifting block revolutes the rotation of axes so that first shifting block with the second shifting block joint respectively in the first recess of sliding block seat side with in the second recess, so that the sliding block seat with the position relatively fixed of base.

According to a specific embodiment of this application, the driving piece still include with the bullet round pin of first shifting block and second shifting block butt, and the cover is established spring on the bullet round pin, the spring sets up the bullet round pin with between first shifting block, the second shifting block, be used for the sliding block seat is relative during the backup pad motion, through the restoring force of spring drives first shifting block with the second shifting block slides in respectively first recess with the second recess.

According to a specific embodiment of the present application, the cross-sectional areas of the first and second grooves in the horizontal direction gradually decrease in a direction from the open end to the bottom end; the width of the first shifting block in the horizontal direction is smaller than the minimum width of the first limiting groove in the horizontal direction, and the width of the second shifting block in the horizontal direction is smaller than the minimum width of the second limiting groove in the horizontal direction.

According to a specific embodiment of the present application, the first groove and the second groove have a vertical side surface vertically disposed and an inclined surface opposite to the vertical side surface; the first shifting block and the second shifting block are also provided with a vertical side face which is vertically arranged and an inclined face which is opposite to the vertical side face, when the first shifting block and the second shifting block are assembled and connected with the first groove and the second groove, the inclined faces of the first groove and the second groove are respectively abutted against the inclined faces of the first shifting block and the second shifting block, so that when the sliding block seat is lifted relative to the front mold assembly, the sliding block seat can be abutted against the first shifting block or the second shifting block and can horizontally move under the driving of the first shifting block or the second shifting block.

According to a specific embodiment of the present application, a height and/or an inclination angle of the first block is smaller than a height and/or an inclination angle of the second block.

According to a specific embodiment of the present application, a plurality of limiting members are assembled on the slider seat, the first limiting groove, the second limiting groove and the third limiting groove are respectively disposed on the plurality of limiting members, the distance between the plurality of limiting members is adjustable, and the distance between the first limiting groove and the second limiting groove is the thickness of the product to be injection-molded when the second injection-molding is performed.

The utility model has the beneficial effects that: different from the situation of the prior art, the sliding block mechanism provided by the utility model can enable the sliding block insert to be free from inserting the injection-molded first injection-molded product in the second injection-molding process, so that the damage to the first injection-molded product can be avoided, the yield of the product can be improved, and the sliding block mechanism is simple in structure, stable and reliable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments 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 other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a perspective assembly view of a partial structure of a slider mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a partially exploded structure of a slider mechanism according to an embodiment of the present invention;

fig. 3 is a schematic view of a first front mold, a slide insert, and a rear mold of the slide mechanism according to the embodiment of the present invention in a first assembled state;

fig. 4 is a schematic view of a second assembled state of the first front mold, the slide insert and the rear mold in the slide mechanism provided in the embodiment of the present invention;

fig. 5 is a schematic view of a first assembled state of a second front mold, a slide insert and a rear mold in the slide mechanism provided in the embodiment of the present invention;

fig. 6 is a schematic diagram illustrating a second assembled state of the second front mold, the slide insert, and the rear mold in the slide mechanism according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive work based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

For the purpose of describing the technical solutions in the present application, a slider mechanism in the embodiment will now be described with reference to the accompanying drawings.

Referring to fig. 1 to 6, an embodiment of the present application provides a slider mechanism, which is applied to an injection mold, and the slider mechanism can cooperate with other components of the injection mold to perform a secondary injection molding process to obtain a secondary injection product to be injection molded.

This slider mechanism includes: the injection molding device comprises a front mold assembly 10 and a rear mold assembly 20, wherein a slide insert 230 is further installed on the rear mold assembly 20, the slide insert 230 is fixedly or detachably connected with the rear mold assembly 20, and the slide insert 230 can be connected with the rear mold assembly 20 and the front mold assembly 10 in a matching manner so as to realize two-time injection molding of a product to be injection molded.

Optionally, a positioning groove or a positioning hole (not shown) is disposed on the rear mold assembly 20, and a positioning protrusion or a positioning column (not shown) corresponding to the positioning groove or the positioning hole is disposed on the slide insert 230, and the positioning groove or the positioning hole cooperates with the positioning protrusion or the positioning column to fix the slide insert 230 to the rear mold assembly 20.

Further, the front mold assembly 10 includes a support plate 110, and a first front mold 120 and a second front mold 130 connected to the support plate 110, and optionally, the first front mold 120 and the second front mold 130 are correspondingly disposed at both sides of the support plate 110.

The rear die assembly 20 comprises a rear die 210 and a base 200, wherein a slider seat 220 connected with the base 200 in a sliding manner is arranged on the base 200, a slider insert 230 is arranged on the slider seat 220, and the slider insert 230 can move relative to the rear die 210 under the driving of the slider seat 220 and is matched with the rear die 210, the first front die 120 or the second front die 130 to carry out die closing or die withdrawing;

when the front mold assembly 10 and the rear mold assembly 20 are mounted in a matching manner, the slide insert 230 is driven by the slide seat 220 to move to the first injection position, and the first front mold 120, the rear mold 210 and the slide insert 230 are matched and injected with each other at the first injection position to obtain a first injection product;

the slide insert 230 can move to a second injection molding position under the driving of the slide seat 220, the first front mold 120 is retreated at the second injection molding position, and the second front mold 130 is matched with the rear mold 210 and the slide insert 230 for injection molding at the second injection molding position to obtain a second injection molding product;

the slide insert 230 can be moved to the ejection position by the slide holder 220 to perform the mold ejection of the second front mold 130 and the rear mold 210.

Specifically, in this embodiment, the rear mold 210 and the slide block holder 220 are both disposed above the base 200, the slide block holder 220 is slidably connected to the base 200 through a sliding rail or a sliding chute, a positioning groove (not shown) is disposed on the slide block holder 220, a positioning block (not shown) is disposed at one end of the slide block insert 230, and the positioning block of the slide block insert 230 is assembled and clamped with the positioning groove on the slide block holder 220, so that the slide block insert 230 is fixedly connected to the slide block holder 220.

The base 200 can be driven by a driving mechanism to perform vertical lifting movement, and can also be driven by the driving mechanism to perform overturning movement in the horizontal direction, wherein the overturning angle of the base 200 is 180 degrees, and in the overturning process of the base 200, the rear mold 210 and the slide block insert 230 arranged on the base 200 can respectively rotate to positions matched with the first front mold 120 and the second front mold 130 in the front mold assembly 10 to perform mold closing so as to obtain a first injection molding product and a second injection molding product; when the base 200 is driven by the driving mechanism to move up and down in the vertical direction, the slider seat 220 is connected with the base 200 in a sliding manner, so that the slider insert 230 can move in the horizontal direction relative to the base 200 under the driving of the slider seat 220, and the slider insert 230 can be driven to abut against and match with the rear mold 210, the first front mold 120 or the second front mold 130 in the horizontal direction or be separated from each other so as to perform mold closing or mold releasing operation.

According to an embodiment of the present application, the slider seat 220 is further provided with a first limiting groove 221, a second limiting groove 222 and a third limiting groove 223, the base 200 is provided with a limiting post 224 engaged with the first limiting groove 221, the second limiting groove 222 and the third limiting groove 223, the first limiting groove 221, the second limiting groove 222 and the third limiting groove 223 respectively correspond to the first injection molding position, the second injection molding position and the withdrawing position, when the limiting post 224 is received in the first limiting groove 221, the slider insert 230 is coupled with the rear mold 210 and the first front mold 120 at the first injection molding position.

Further, the supporting plate 110 is further provided with a first shifting block 111 and a second shifting block 112, the first shifting block 111 and the second shifting block 112 are respectively arranged on two sides of the supporting plate 110 and are adjacent to the first front mold 120 and the second front mold 130, and the first shifting block 111 and the second shifting block 112 are used for abutting against the slider seat 220 to drive the slider insert 230 to move on the base 200.

Further, the slider seat 220 is further provided with a first groove 225 and a second groove 226 corresponding to the first shifting block 111 and the second shifting block 112, the support plate 110 is disposed above the base 200, the first shifting block 111 and the second shifting block 112 are respectively disposed above the first groove 225 and the second groove 226, and when the first shifting block 111 is accommodated in the first groove 225, the first front mold 120 is matched with the slider insert 230 and the rear mold 210 at the first injection molding position; when the second paddle 112 is received in the second recess 226, the second front mold 130 is clamped to the slide insert 230 and the rear mold 210 in the second molding position.

Furthermore, the supporting plate 110 is further provided with two driving members 113 abutting against the first shifting block 111 and the second shifting block 112, wherein the two driving members 113 are respectively arranged corresponding to the first shifting block 111 and the second shifting block 112, the driving member 113 further includes a rotating shaft 1131 pivotally connected to the first shifting block 111 and the second shifting block 112, and the driving member 113 is configured to drive the first shifting block 111 and the second shifting block 112 to rotate around the rotating shaft 1131 so as to enable the first shifting block 111 and the second shifting block 112 to be respectively clamped in the first groove 225 and the second groove 226 on the side surface of the slider holder 220, so that the positions of the slider holder 220 and the base 200 are relatively fixed.

Wherein the support plate 110 is disposed above the base 200, and the first front mold 120 and the second front mold 130 are connected to the support plate 110 and fixed with respect to the support plate 110. The slide insert 230 on the base 200 can be matched with the first front mold 120 and the second front mold 130 to complete the injection molding operation through the lifting motion and the rotating motion of the base 200.

In another embodiment of the present application, the front mold assembly 10 further includes a first blade base 140 and a second blade base 150 fixedly connected to the support plate 110, the first blade base 140 and the second blade base 150 are respectively disposed at two sides of the support plate 110, the first blade base 140 and the first front mold 120 are disposed at the same side of the support plate 110, and the second blade base 150 and the second front mold 130 are disposed at the other side of the support plate 110. The first shovel base 140 is used for moving the slide block insert 230 to the first injection molding position under the driving of the slide block seat 220, and when the first front mold 120 is matched with the rear mold 210 and the slide block insert 230 at the first injection molding position for injection molding, the first shovel base 140 can abut against one side of the slide block seat 220 away from the direction of the rear mold 210, so that the slide block seat 220 is abutted when the first injection molding is performed, the slide block insert 230 is relatively fixed with the first front mold 120 and the rear mold 210, and the first injection molding operation is performed. The second shovel base 150 is used for moving the slide block insert 230 to the second injection molding position under the driving of the slide block seat 220, and when the second front mold 130 is matched with the rear mold 210 and the slide block insert 230 at the second injection molding position for injection molding, the second shovel base 150 can be abutted against one side of the slide block seat 220 far away from the direction of the rear mold 210, so that the slide block seat 220 is abutted against when the second injection molding is carried out, and the slide block insert 230, the second front mold 130 and the rear mold 210 are relatively fixed in position, so that the second injection molding operation is carried out.

In another embodiment of the present application, the first shovel base 140 or the second shovel base 150 may be driven to drive the slider seat 220 to move horizontally on the base 200, so as to drive the slider insert 230 to move to the first injection position or the second injection position for performing the injection molding operation.

In another embodiment of the present application, in order to make the injection molding process more stable, a bead 240 may be disposed on the base 200, and the bead 240 is fixedly disposed above the base 200. Two of the pressing strips 240 form a sliding path, when the slider seat 220 horizontally slides relative to the base 200, two outer side surfaces of the slider seat 220 respectively correspond to the side surfaces of the two pressing strips 240, so that the slider seat 220 can only move on the plane where the base 200 is located in the direction towards the rear mold 210, and adverse effects on the injection molding process caused by movement or shaking of the slider seat 220 in other directions when the slider seat 220 moves on the base 200 are avoided. For example, when the bead 240 seat is not provided, the slider seat 220 may be moved by a force deviating from the direction of the rear mold 210 when the slider seat 220 is driven by an external force due to insufficient fastening of the assembly between the slider seat 220 and the base 200, so that the slider insert 230 may be separated from the rear mold 210, the first front mold 120, or the second front mold 130, and the mold clamping may fail.

In another embodiment of the present application, the driving member 113 further includes an elastic pin 1132 abutting against the first shifting block 111 and the second shifting block 112, and a spring 1133 sleeved on the elastic pin 1132, where the spring 1133 is disposed between the elastic pin 1132 and the first shifting block 111 and the second shifting block 112, and is used for driving the first shifting block 111 and the second shifting block 112 to slide into the first groove 225 and the second groove 226, respectively, by a restoring force generated by deformation of the spring 1133 when the slider holder 220 moves relative to the support plate.

Further, the cross-sectional areas of the first groove 225 and the second groove 226 in the horizontal direction gradually decrease in the direction from the open end to the bottom end; the width of the first shifting block 111 in the horizontal direction is smaller than the minimum width of the first limiting groove 221 in the horizontal direction, and the width of the second shifting block 112 in the horizontal direction is smaller than the minimum width of the second limiting groove 222 in the horizontal direction.

Further, the first groove 225 and the second groove 226 have a vertical side surface vertically disposed and an inclined surface opposite to the vertical side surface; the first shifting block 111 and the second shifting block 112 are also provided with a vertical side face which is vertically arranged and an inclined face which is opposite to the vertical side face, when the first shifting block 111 and the second shifting block 112 are assembled and connected with the first groove 225 and the second groove 226, the inclined faces of the first groove 225 and the second groove 226 are respectively abutted to the inclined faces of the first shifting block 111 and the second shifting block 112, so that when the sliding block seat 220 moves up and down relative to the front mold assembly 10, the sliding block seat 220 can be abutted to the first shifting block 111 or the second shifting block 112 and can move horizontally under the driving of the first shifting block 111 or the second shifting block 112.

Further, the height and/or inclination of the first block 111 is smaller than the height and/or inclination of the second block 112.

In the following, the working processes of performing mold closing, injection molding and mold releasing on the front mold assembly 10 and the rear mold assembly 20 in this embodiment will be briefly described, referring to fig. 3 to 6, where the working process of the slider mechanism in this embodiment is as follows: the base 200 moves upwards under the driving of an external force, the base 200 drives the slide block insert 230 to move to a position which is in the same horizontal plane with the first front mold 120, the slide block seat 220 moves horizontally on the base 200 under the driving of the first shovel base 140 and drives the slide block insert 230 to move to the position of the rear mold 210, and at the position, the slide block insert 230 is matched with the rear mold 210 and the first front mold 120 to complete mold closing and obtain a first injection molding product; in the process, due to the relative movement of the base 200, the first shifting block 111 can slide into the first groove 225 under the action of the driving member 113;

secondly, after the first mold closing is completed to obtain a first injection product, the slider seat 220 is driven by the base 200 to move downwards relative to the first front mold 120, the slider insert 230 also moves downwards along with the base 200, and because the inclined surface of the first groove 225 and the inclined surface of the first shifting block 111 are abutted with each other, in the downward movement process of the base 200, the slider seat 220 can be subjected to a reaction force vertical to the inclined surface of the first groove 225, so that the slider seat 220 can move on the base 200 in a direction away from the rear mold 210 under the action of the reaction force, and the slider seat 220 can drive the slider insert 230 to move away from the rear mold 210, so that the assembly of the slider insert 230 with the rear mold 210 and the first front mold 120 is released to complete the first mold releasing; meanwhile, by setting the distance between the first limit groove 221 and the second limit groove 222, the distance that the slider seat 220 moves in the first mold stripping process can be specifically limited, for example, the distance between the slider insert 230 and the rear mold 210 after the first mold stripping is the distance between the slider insert 230 and the rear mold 210 during the second injection, that is, the slider seat 220 moves to the second injection position during the first mold stripping, so that the slider insert 230 can be prevented from being completely stripped after the first injection, and the slider insert 230 is inserted into the first injection product again during the second injection to close the mold, thereby damaging the first injection product.

Then, after the first shifting block 111 is separated from the first groove 225, the base 200 is turned over by 180 degrees under the driving of external force, and at this time, the slider insert 230 on the base 200 can match with the second front mold 130 and the second rear mold 210 to obtain a second injection molding product;

finally, the base 200 moves downward under the driving of an external force, and the slider insert 230 is driven by the slider seat 220 to move to the retreating position to realize the mold retreating of the second front mold 130 and the rear mold 210, so that the whole secondary injection molding process of the slider mechanism is completed.

Further, in this embodiment, a fillet or a chamfer may be provided around the lateral opening ends of the first groove 225 and the first groove 226; the first shifting block 111 may also be provided with a round corner or a chamfer around the side surface adjacent to the first groove 225, and the second shifting block 112 may be provided with a round corner or a chamfer around the side surface adjacent to the second groove 226. Therefore, when the base 200 drives the slider holder 220 to move upward under the driving of an external force, because the open ends of the first shift block 111 or the second shift block 112 and the first groove 225 or the second groove 226 are not completely matched, by providing a chamfer or a fillet at the position where the first shift block 111 is assembled with the first groove 225 and the position where the second shift block 112 is assembled with the second groove 226, when the first shift block 111 or the second shift block 112 descends relative to the first groove 225 or the second groove 226, the driving member 113 generates a lateral thrust due to the contraction of the spring 1133, and the first shift block 111 or the second shift block 112 can slide into the first groove 225 or the second groove 226 from the side surface of the first groove 225 or the second groove 226 under the action of the lateral thrust of the driving member 113. Therefore, by arranging the round corners or the chamfers on the first shifting block 111, the second shifting block 112 or the first groove 225 and the second groove 226, the resistance of the first shifting block 111 or the second shifting block 112 sliding into the first groove 225 or the second groove 226 can be reduced, and the process of sliding the first shifting block 111 and the second shifting block 112 into and out of the first groove 225 and the second groove 226 is smoother.

In another embodiment of the present application, a plurality of position-limiting members (not shown) are assembled and connected to the slider seat 220, the first position-limiting groove 221, the second position-limiting groove 222 and the third position-limiting groove 223 are respectively disposed on the plurality of position-limiting members, a distance between the plurality of position-limiting members is adjustable, and a distance between the first position-limiting groove 221 and the second position-limiting groove 222 is a thickness of a product to be injection-molded during the second injection molding.

Specifically, for example, the thickness of the first injection-molded product of the products to be injection-molded is 1.5cm, and the thickness of the second injection-molded product is 0.5 cm. In the process of injection molding of the product, the distance between the plurality of limiting members needs to be adjusted, so that the distance between the first limiting groove 221 and the second limiting groove 222 is 0.5 cm.

Different from the prior art, the slider mechanism provided by the utility model can enable the slider insert 230 to perform the second injection molding without inserting the injection-molded first injection-molded product, so that the damage to the first injection-molded product can be avoided, the yield of the product can be improved, and the slider mechanism is simple in structure, stable and reliable.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A slider mechanism, characterized in that the slider mechanism comprises:

the front mould assembly comprises a support plate, a first front mould and a second front mould, wherein the first front mould and the second front mould are arranged on two sides of the support plate and connected with the support plate;

the rear die assembly comprises a rear die and a base, a sliding block seat in sliding connection with the base is arranged on the base, a sliding block insert is arranged on the sliding block seat, the sliding block insert can move relative to the rear die under the driving of the sliding block seat, and is matched with the rear die, the first front die or the second front die to carry out die closing or die withdrawing;

the slide block insert is provided with a first injection molding position, a second injection molding position and a withdrawing position which are staggered relative to the base, when the front mold assembly and the rear mold assembly are installed in a matched mode, the slide block insert is driven by the slide block seat to move to the first injection molding position, and the first front mold, the rear mold and the slide block insert are matched and injected at the first injection molding position to obtain a first injection molding product;

the slide block insert is driven by the slide block seat to move to the second injection molding position, the first front mold is retreated at the second injection molding position, and the second front mold is matched with the rear mold and the slide block insert at the second injection molding position for injection molding so as to obtain a second injection molding product;

and the sliding block insert is driven by the sliding block seat to move to the withdrawing position so as to realize the die withdrawing of the second front die and the rear die.

2. The slider mechanism as claimed in claim 1, wherein the slider seat further comprises a first, a second and a third limiting grooves, the base further comprises a limiting post matching with the first, the second and the third limiting grooves, the first, the second and the third limiting grooves respectively correspond to the first, the second and the exit positions, and when the limiting post is received in the first limiting groove, the slider insert is connected with the first front mold and the rear mold in the first injection position in a matching manner.

3. The slider mechanism according to claim 2, wherein the supporting plate is further provided with a first shifting block and a second shifting block, the first shifting block and the second shifting block are respectively arranged on two sides of the supporting plate and are adjacent to the first front mold and the second front mold, and the first shifting block and the second shifting block are used for abutting against the slider seat to drive the slider insert to move on the base.

4. The slider mechanism according to claim 3, wherein the slider holder is further provided with a first groove and a second groove corresponding to the first block and the second block, the support plate is disposed above the base, the first block and the second block are respectively disposed above the first groove and the second groove, and when the first block is received in the first groove, the first front mold is clamped with the slider insert and the rear mold in the first injection position; and when the second shifting block is accommodated in the second groove, the second front die is matched with the slide block insert and the rear die at a second injection molding position.

5. The slider mechanism as claimed in claim 4, wherein the supporting plate further comprises a driving member abutting against the first shifting block and the second shifting block, the driving member includes a rotating shaft pivotally connected to the first shifting block and the second shifting block, and the driving member is configured to drive the first shifting block and the second shifting block to rotate around the rotating shaft, so that the first shifting block and the second shifting block are respectively engaged with the first groove and the second groove on the side surface of the slider holder, and the position of the slider holder relative to the position of the base is fixed.

6. The slider mechanism as claimed in claim 5, wherein the driving member further comprises an elastic pin abutting against the first and second shifting blocks, and a spring sleeved on the elastic pin, the spring being disposed between the elastic pin and the first and second shifting blocks for driving the first and second shifting blocks to slide into the first and second grooves, respectively, by a restoring force of the spring when the slider holder moves relative to the supporting plate.

7. The slider mechanism according to claim 4, wherein the cross-sectional areas of the first groove and the second groove in the horizontal direction gradually decrease in a direction from the open end to the bottom end, the width of the first paddle in the horizontal direction is smaller than the minimum width of the first stopper groove in the horizontal direction, and the width of the second paddle in the horizontal direction is smaller than the minimum width of the second stopper groove in the horizontal direction.

8. The slider mechanism of claim 7 wherein said first recess and said second recess have a vertically disposed vertical side and an inclined surface opposite said vertical side; the first shifting block and the second shifting block are also provided with a vertical side face which is vertically arranged and an inclined face which is opposite to the vertical side face, when the first shifting block and the second shifting block are assembled and connected with the first groove and the second groove, the inclined faces of the first groove and the second groove are respectively abutted against the inclined faces of the first shifting block and the second shifting block, so that when the sliding block seat is lifted relative to the front mold assembly, the sliding block seat can be abutted against the first shifting block or the second shifting block and can horizontally move under the driving of the first shifting block or the second shifting block.

9. The slider mechanism of claim 8 wherein the height and/or inclination of the first paddle is less than the height and/or inclination of the second paddle.

10. The slider mechanism as claimed in claim 4, wherein a plurality of position-limiting members are assembled on the slider seat, the first position-limiting groove, the second position-limiting groove and the third position-limiting groove are respectively disposed on the position-limiting members, the distance between the position-limiting members is adjustable, and the distance between the first position-limiting groove and the second position-limiting groove is the thickness of the product to be injection-molded during the second injection molding.

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