CN216860487U

CN216860487U - Demoulding structure

Info

Publication number: CN216860487U
Application number: CN202123450846.XU
Authority: CN
Inventors: 吕德荣; 任永茂
Original assignee: Xinlida Mould Industry Huizhou Co ltd
Current assignee: Xinlida Mould Industry Huizhou Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-01
Anticipated expiration: 2031-12-31

Abstract

A demoulding structure comprises a fixed seat, a row position component and a pushing component, wherein an accommodating groove is formed in the top surface of the fixed seat, an inclined block is arranged on the bottom wall of the accommodating groove, the row position component comprises a core seat and a row position slider, the core seat is accommodated in the accommodating groove, the row position slider is arranged on the core seat in a sliding mode, the row position slider is abutted to the inclined block, the pushing component comprises a demoulding plate and an inclined ejecting block, the demoulding plate is arranged on the fixed seat in a sliding mode, an inclined ejecting hole is formed in the fixed seat, the inclined ejecting block penetrates through the inclined ejecting hole, one end of the inclined ejecting block is arranged on the demoulding plate in a sliding mode, at least part of the other end of the inclined ejecting block is accommodated in the row position slider, and the demoulding plate is used for driving the inclined ejecting block to be close to the accommodating groove, so that the inclined ejecting core seat and the row position slider are jointly away from the accommodating groove, and the row position slider slides relative to the core seat. So, can glue frame inside wall shaping recess at the seat, solve conventional use cylinder/hydro-cylinder, the unable problem of installing such as guide pillar to one side.

Description

Demoulding structure

Technical Field

The utility model relates to the technical field of injection molds, in particular to a demolding structure.

Background

Injection molds are tools used to produce plastic products. For plastic products with special shapes, a closed cavity is often formed by enclosing the plastic products by installing slide or insert parts in a mold, and the plastic products can be smoothly demoulded after injection molding. Wherein the capable position need slide for mould benevolence, and the capable position of capable slip is close to the die cavity when the compound die, and the capable position of slip is kept away from the die cavity when the branch mould to can take out the fashioned plastic product in the die cavity.

The conventional way of driving the slide to slide mainly includes driving the slide by using an air cylinder/oil cylinder or driving the slide by using an inclined guide post, however, as for a seat rubber frame 20 as shown in fig. 1, a plurality of grooves 21 need to be formed on an inner side wall thereof, but since the seat rubber frame 20 is a frame-shaped structure, the position in the frame is small, and a sufficient space is lacked for installing a corresponding air cylinder/oil cylinder or inclined guide post structure on a mold, a demolding structure capable of forming the plurality of grooves 21 needs to be designed for the seat rubber frame 20.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a demoulding structure which is arranged in a mould, can form a groove on the inner side wall of a seat rubber frame during injection moulding, and can demould smoothly after the moulding is finished.

The purpose of the utility model is realized by the following technical scheme:

a demolding structure, comprising:

the top surface of the fixed seat is provided with an accommodating groove, and the bottom wall of the accommodating groove is provided with an inclined block;

the slide assembly comprises a core seat and a slide block, the core seat is accommodated in the accommodating groove, the slide block is arranged on the core seat in a sliding manner, and the slide block is abutted with the inclined block; and

the ejection assembly comprises a stripper plate and an inclined ejection block, the stripper plate is slidably arranged on the fixed seat, an inclined ejection hole is formed in the fixed seat, the inclined ejection block is arranged in the inclined ejection hole in a penetrating manner, one end of the inclined ejection block is slidably arranged on the stripper plate, and at least part of the other end of the inclined ejection block is accommodated in the slide block;

the stripper plate is used for driving the inclined ejector block to be close to the accommodating groove, so that the inclined ejector block pushes the core seat and the slide block to be away from the accommodating groove together, and the slide block slides relative to the core seat.

In one embodiment, the inclined blocks are provided in plurality, intervals are arranged among the inclined blocks, the row slide blocks are provided in plurality, the row slide blocks are in one-to-one correspondence and are abutted against the inclined blocks, the inclined ejecting blocks are provided in plurality, and the inclined ejecting blocks are connected with the row slide blocks in one-to-one correspondence.

In one embodiment, the core print seat is provided with a sliding groove, and the slide block is slidably disposed in the sliding groove.

In one embodiment, the slide assembly further includes a clamping block disposed on the core print, and at least a portion of the clamping block extends into the sliding slot, so that the clamping block abuts against the slide block.

In one embodiment, two clamping blocks are arranged, and the two clamping blocks are respectively arranged on two sides of the sliding groove, so that the two clamping blocks are in one-to-one correspondence to abut against two sides of the slide block.

In one embodiment, the slide assembly further includes a spring, two ends of the spring are respectively abutted to the slide block and the inner side wall of the sliding groove, and the spring is used for pushing the slide block to slide close to the inner side wall of the accommodating groove.

In one embodiment, the number of the springs is two, and the two springs are respectively arranged on two sides of the inclined block.

In one embodiment, the core print is further provided with a position-avoiding hole, the position-avoiding hole is located on the bottom wall of the chute, and the inclined block and the inclined top block are both arranged in the position-avoiding hole in a penetrating manner.

In one embodiment, the slide assembly further includes a holding rod, one end of the holding rod is fixedly disposed on the stripper plate, and the other end of the holding rod penetrates through the fixing seat and is fixedly connected to the core seat.

In one embodiment, a clamping groove is formed in one side surface, close to the inclined ejecting block, of the slide block, and part of the inclined ejecting block is accommodated in the clamping groove.

Compared with the prior art, the utility model has at least the following advantages:

the utility model relates to a demoulding structure, which comprises a fixed seat, a line position component and a pushing component, wherein an accommodating groove is formed in the top surface of the fixed seat, an inclined block is arranged on the bottom wall of the accommodating groove, the line position component comprises a core seat and a line position slider, the core seat is accommodated in the accommodating groove, the line position slider is arranged on the core seat in a sliding mode, the line position slider is abutted against the inclined block, the pushing component comprises a demoulding plate and an inclined ejecting block, the demoulding plate is arranged on the fixed seat in a sliding mode, an inclined ejecting hole is formed in the fixed seat, the inclined ejecting block penetrates through the inclined ejecting hole, one end of the inclined ejecting block is arranged on the demoulding plate in a sliding mode, at least part of the other end of the inclined ejecting block is accommodated in the line position slider, and the demoulding plate is used for driving the inclined ejecting block to be close to the accommodating groove, so that the inclined ejecting core seat and the line position slider are far away from the accommodating groove together, and the line position slider slides relative to the core seat. So, through slide slider and core print, oblique shape piece mating reaction to utilize the stripper plate to drive oblique kicking block and drive, can glue frame inside wall shaping recess at the seat, solve the problem of the unable installation of conventional use cylinder/hydro-cylinder, oblique guide pillar etc..

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a seat cushion frame according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a demolding structure according to an embodiment of the present invention;

FIG. 3 is a schematic partial structural view of the demolding structure shown in FIG. 2;

fig. 4 is a partial sectional structure view of the demolding structure shown in fig. 2.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings.

Referring to fig. 2 to 4, a mold releasing structure 10 includes a fixing base 100, a slide assembly 200 and a pushing assembly 300, wherein a top surface of the fixing base 100 is formed with a receiving slot 110, and a bottom wall of the receiving slot 110 is formed with an inclined block 400.

The top surface of the fixing base 100 is provided with a receiving groove 110, and the bottom wall of the receiving groove 110 is fixedly provided with the inclined block 400. In one embodiment, the side surface of the wedge 400 is provided with a certain inclination, that is, an included angle between the side wall of the wedge 400 and the top surface of the fixing base 100 is less than 90 °. Wherein the inclined block 400 may be fixed using screws or the like. In one embodiment, the inclined blocks 400 are provided in plurality, and a space is provided between the inclined blocks 400. For example, the respective blocks 400 are arranged around the inner side wall of the receiving groove 110.

Further, referring to fig. 2 to 4, the slide assembly 200 includes a core print 210 and a slide block 220, the core print 210 is accommodated in the accommodating slot 110, the slide block 220 is slidably disposed on the core print 210, and the slide block 220 is abutted to the wedge 400.

It should be noted that the core print 210 is installed in the receiving slot 110, wherein the core print 210 is installed in the receiving slot 110 in a fitting manner, so that the core print 210 can slide along the inner sidewall of the receiving slot 110 to be far away from or close to the bottom wall of the receiving slot 110. The slide block 220 is slidably mounted on the core print 210, wherein a sliding direction of the slide block 220 relative to the core print 210 is perpendicular to a sliding direction of the core print 210 relative to the receiving slot 110. For example, the core print 210 moves up and down relative to the receiving cavity 110, and the slide 220 slides laterally relative to the core print 210. The slide block 220 is also connected to the wedge block 400. In one embodiment, the row slide block 220 and the inclined block 400 are both provided with an inclined surface, and the inclined surface of the row slide block 220 is tightly attached to the inclined surface of the inclined block 400.

Further, referring to fig. 2 to 4, the ejector assembly 300 includes a stripper plate 310 and an inclined ejector block 320, the stripper plate 310 is slidably disposed on the fixing base 100, the fixing base 100 is provided with an inclined ejector hole 120, the inclined ejector block 320 is disposed in the inclined ejector hole 120 in a penetrating manner, one end of the inclined ejector block 320 is slidably disposed on the stripper plate 310, and the other end of the inclined ejector block 320 is at least partially accommodated in the slide block 220. The stripper plate 310 is used to drive the slanted ejecting block 320 to approach the accommodating slot 110, so that the slanted ejecting block 320 pushes the core print 210 and the slide 220 to move away from the accommodating slot 110, and the slide 220 slides relative to the core print 210.

It should be noted that the stripper plate 310 is slidably mounted on the holder 100 such that the stripper plate 310 can slide toward or away from the core print 210. The fixing base 100 is formed with an inclined top hole 120, wherein the inclined top hole 120 is an inclined hole structure, that is, the extending direction of the inclined top hole 120 is not perpendicular to the surface of the core print 210. The slanted ejecting block 320 passes through the slanted ejecting hole 120, so that the slanted ejecting block 320 has a certain inclination angle with respect to the fixing base 100. One end of the slanted ejecting block 320 is slidably connected to the stripper plate 310, and a part of the other end of the slanted ejecting block 320 is accommodated in the slide block 220. Thus, when the mold-releasing plate 310 slides relative to the fixing base 100 to approach or approach the core base 210, the mold-releasing plate 310 pushes the slanted ejecting block 320, and since the slanted ejecting block 320 and the mold-releasing plate 310 are in a sliding connection, for example, a sliding rail is installed on the mold-releasing plate 310, the slanted ejecting block 320 slides along the sliding rail, so that as the mold-releasing plate 310 approaches the receiving slot 110, the slanted ejecting block 320 passes through the slanted ejecting hole 120, and the slanted ejecting block 320 and the mold-releasing plate 310 slide with each other. Further, the end of the slanted ejecting block 320 away from the stripper plate 310 is partially accommodated in the row slider 220, when the slanted ejecting block 320 is pushed by the stripper plate 310 to rise, since the row slider 220 can only slide laterally along the core 210 and the row slider 220 is pressed and blocked by the slanted block 400, the slanted ejecting block 320 pushes the row slider 220 together with the core 210, so that the core 210 and the row slider 220 are jointly away from the accommodating slot 110, and since the slanted block 400 is fixedly mounted on the bottom wall of the accommodating slot 110, the row slider 220 and the slanted block 400 slide relative to each other, and as the core 210 drives the row slider 220 to move away from the accommodating slot 110, the row slider 220 is finally away from and separated from the slanted block 400. At this time, the slide block 220 can be separated from the inner sidewall of the accommodating groove 110 by the pushing of the inclined pushing block 320, so that the seat cushion frame 20 formed between the slide block 220 and the accommodating groove 110 can be smoothly taken out. A plurality of protrusions are disposed on a side surface of the slide block 220 close to the receiving slot 110, and each protrusion is used for forming a groove 21 on the seat cushion frame 20. Therefore, the slide block 220, the core seat 210 and the inclined block 400 are matched, the stripper plate 310 is used for driving the inclined ejector block 320 to drive, the slide block 220 can be driven to form a cavity when approaching the accommodating groove 110, the seat rubber frame 20 can be taken out when being far away from the accommodating groove 110, and the problem that the conventional air cylinder/oil cylinder, the inclined guide column and the like cannot be installed is solved.

Referring to fig. 2, in an embodiment, the stripper plate 310 can slide relative to the fixing base 100, for example, a plurality of guide posts 500 are installed in the fixing base 100, and each guide post 500 passes through the stripper plate 310, so that the stripper plate 310 can slide along the guide post 500, that is, the stripper plate 310 can slide in the fixing base 100, and the slanted ejecting block 320 can be driven to pass through the slanted ejecting hole 120.

In an embodiment, since there are a plurality of the inclined blocks 400, there are a plurality of the row sliders 220, each row slider 220 is connected to each inclined block 400 in a one-to-one correspondence, and a plurality of the inclined ejecting blocks 320 are provided, each inclined ejecting block 320 is connected to each row slider 220 in a one-to-one correspondence.

It should be noted that a plurality of the inclined blocks 400 are installed, and the inclined blocks 400 are used for performing the top pressing limit on the slide blocks 220, and a plurality of the slide blocks 220 are correspondingly installed, so that the slide blocks 220 are in one-to-one correspondence with the inclined blocks 400. Further, a plurality of the slanted ejecting blocks 320 are required to eject the row sliders 220. Each of which is slidably mounted on the stripper plate 310. Thus, the plurality of slide blocks 220 are provided to form the grooves 21 in the plurality of inner side walls of the seat cushion frame 20. Compare in traditional use cylinder/hydro-cylinder or oblique guide pillar drive, this application structure can be compacter.

Referring to fig. 3, in an embodiment, a sliding slot 211 is formed on the core print 210, and the slide block 220 is slidably disposed in the sliding slot 211. In order to enable the slide block 220 to slide on the core print 210 better, the slide groove 211 is formed on the core print 210 so that the slide block 220 can slide in the slide groove 211. Wherein, the slide block 220 and the slide groove 211 are installed in a matching way.

Referring to fig. 3, in an embodiment, the slide assembly 200 further includes a locking block 230, the locking block 230 is disposed on the core print 210, and at least a portion of the locking block 230 extends into the sliding slot 211, so that the locking block 230 abuts against the slide block 220.

It should be noted that, in order to ensure that the slide block 220 slides stably in the slide slot 211, that is, the slide block 220 can slide back and forth in the slide slot 211 only in one direction, but not slide out of the slide slot 211, the core print 210 is installed with the clamp block 230, so that part of the structure of the clamp block 230 protrudes from the slide slot 211, and part of the structure of the clamp block 230 protruding into the slide slot 211 blocks the slide block 220. So that the line slider 220 slides stably.

In one embodiment, two of the locking blocks 230 are provided, and the two locking blocks 230 are respectively disposed on two sides of the sliding slot 211, so that the two locking blocks 230 are abutted against two sides of the slide block 220 in a one-to-one correspondence manner. In order to further improve the sliding stability of the slide block 220, two stopper blocks 230 are installed to limit both sides of the slide block 220.

Referring to fig. 3, in an embodiment, the slide assembly 200 further includes a spring 240, two ends of the spring 240 are respectively abutted against the inner sidewalls of the slide block 220 and the slide groove 211, and the spring 240 is used for pushing the slide block 220 to slide close to the inner sidewall of the receiving groove 110.

It should be noted that, the row slider 220 tends to approach the inner sidewall of the accommodating slot 110 in a natural state, and therefore, the spring 240 is disposed such that two ends of the spring 240 respectively abut against the inner sidewalls of the row slider 220 and the sliding slot 211, so that the row slider 220 slides in the sliding slot 211 to approach the inner sidewall of the accommodating slot 110. The inclined pushing block 320 is used for pushing the slide block 220, so that the slide block 220 is far away from the inner side wall of the accommodating slot 110. In an embodiment, two springs 240 are provided, and the two springs 240 are respectively disposed on two sides of the inclined block 400, so that the two springs 240 are disposed to jointly push the slide block 220, thereby ensuring that the slide block 220 receives a stable pushing force, and can smoothly slide in the sliding groove 211.

Referring to fig. 3, in an embodiment, the core print 210 further has a position-avoiding hole 212, the position-avoiding hole 212 is located on the bottom wall of the sliding slot 211, and the inclined block 400 and the inclined top block 320 are both disposed through the position-avoiding hole 212.

It should be noted that the avoiding hole 212 is used for avoiding the inclined block 400 and the inclined top block 320. Since the inclined block 400 is fixedly installed on the bottom wall of the accommodating groove 110, and the inclined block 400 is used for pressing and limiting the slide block 220, the core print 210 is provided with the clearance hole 212, so that the inclined block 400 passes through the clearance hole 212. Further, the slanted ejecting block 320 is used for ejecting and extruding the slide block 220, so that the slanted ejecting block 320 also needs to be avoided.

Referring to fig. 4, in an embodiment, the slide assembly 200 further includes a supporting rod 250, one end of the supporting rod 250 is fixedly disposed on the stripper plate 310, and the other end of the supporting rod 250 penetrates through the fixing base 100 and is fixedly connected to the core base 210.

It should be noted that, in order to protect the slanted ejecting block 320 and prevent the core print 210 from being pushed upwards by the slanted ejecting block 320, two ends of the ejecting rod 250 are fixedly connected to the stripper plate 310 and the core print 210, respectively, so that when the stripper plate 310 slides along the guiding column 500, the stripper plate 310 approaches the receiving slot 110, and the ejecting rod 250 pushes the core print 210 away from the receiving slot 110. Meanwhile, the slanted ejecting block 320 is driven to push the slide block 220, so that the slide block 220 slides in the sliding slot 211 away from the inner sidewall of the accommodating slot 110. In one embodiment, a plurality of the supporting rods 250 are installed, and a space is provided between the supporting rods 250. In this way, the stability between the core print 210 and the stripper plate 310 can be improved.

Referring to fig. 4, in an embodiment, a side surface of the slide block 220 close to the inclined top block 320 is provided with a position-locking groove 221, and a portion of the inclined top block 320 is accommodated in the position-locking groove 221. It should be noted that the slide block 220 is limited to slide in the slide slot 211, and the slide block 220 and the inclined top block 320 need to be set in a movable state, so that only the bottom wall of the slide block 220 needs to be provided with the blocking slot 221, so that the inclined top block 320 is partially accommodated in the blocking slot 221.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A demolding structure, characterized by comprising:

2. The demolding structure according to claim 1, wherein a plurality of the oblique blocks are provided, a space is provided between each of the oblique blocks, a plurality of the slide blocks are provided, each of the slide blocks abuts against each of the oblique blocks in a one-to-one correspondence, a plurality of the oblique ejecting blocks are provided, and each of the oblique ejecting blocks is connected to each of the slide blocks in a one-to-one correspondence.

3. The demold structure according to claim 1, wherein the core holder is formed with a sliding slot, and the slide block is slidably disposed in the sliding slot.

4. The demold structure according to claim 3, wherein the slide assembly further comprises a detent block disposed on the core print, and at least a portion of the detent block extends into the slide slot to abut the detent block against the slide block.

5. The structure for demolding according to claim 4, wherein there are two of said positioning blocks, and two of said positioning blocks are respectively disposed on two sides of said sliding groove, so that two of said positioning blocks are in one-to-one correspondence with two sides of said slide block.

6. The demolding structure according to claim 3 or 5, wherein the slide assembly further comprises a spring, two ends of the spring are respectively abutted against the slide block and the inner side wall of the sliding groove, and the spring is used for pushing the slide block to slide close to the inner side wall of the accommodating groove.

7. The demold structure according to claim 6, wherein said springs are provided in two, two on both sides of said oblique block, respectively.

8. The demolding structure according to claim 3, wherein the core holder is further provided with a position-avoiding hole, the position-avoiding hole is located in a bottom wall of the chute, and the inclined block and the inclined top block are both arranged in the position-avoiding hole in a penetrating manner.

9. The demolding structure of claim 1, wherein the slide assembly further comprises a supporting rod, one end of the supporting rod is fixedly disposed on the demolding plate, and the other end of the supporting rod penetrates through the fixing seat and is fixedly connected to the core holder.

10. The demolding structure as claimed in claim 1, wherein a retaining groove is formed in a side surface of the slide block close to the inclined ejector block, and a part of the inclined ejector block is accommodated in the retaining groove.