CN220163109U - Quick change structure and injection mold - Google Patents

Abstract

The utility model discloses a quick-change structure and an injection mold, comprising a mold, wherein a second installation position is formed in the mold, an insert assembly is arranged in the second installation position, the mold is arranged on a mold supporting structure, a first installation position is formed on the side edge of the mold supporting structure, a poking locking assembly is slidably arranged in the first installation position, and the poking locking assembly is provided with a locking position and an ejection position in the first installation position; when the poking locking assembly is in the locking position, the poking locking assembly locks the insert assembly in the second installation position; when the poking locking assembly is positioned at the ejection position, the poking locking assembly ejects the insert assembly out of the second installation position. Through setting up the first installation position that stirs locking subassembly with the installation at mould bearing structure's lateral wall for can just can operate at mould bearing structure's side to stirring locking subassembly's operation, need not to shut down the form removal, convenient and fast has improved production efficiency.

Description

Quick change structure and injection mold

Technical Field

The utility model belongs to the field of injection molds, and particularly relates to a quick-change structure, and an injection mold with the quick-change structure is also provided.

Background

Injection molding: is a method of processing pellets or powder of molded plastic (mostly thermoplastic). The molding process includes heating plastic in the cylinder of the injection machine to plasticize into viscous melt, filling the melt into the closed mold cavity with the screw of the injection machine via the nozzle and the mold casting system at high pressure and high speed, cooling for certain time to harden and form the plastic, opening the mold and taking out the product. Among them, an injection mold is a production tool that can repeatedly mass-produce plastic products, parts, and the like.

In many cases, the insert is used in the use of the die, and the mounting manner of the insert on the die generally adopts the following two ways in the prior art: firstly, the front surface of an insert is mounted on a die by adopting fasteners such as screws, and the screw positions are generally blocked by copper plugs; and secondly, mounting the insert from the back of the die by adopting a fastener such as a screw.

In the prior art, the installation of the front fastener of the die is matched with the copper plug installation insert to influence the appearance of a product, the requirements of places such as a clamping line cannot be met, the product appearance requirement can be met by adopting the fastener to fix the insert at the back of the die, the insert needs to be stopped for die removal when being replaced, the production rhythm is influenced, and the time and the labor are wasted.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a quick-change structure.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the quick-change structure comprises a die, wherein a second installation position is formed in the die, an insert assembly is arranged in the second installation position, the die is arranged on a die supporting structure, a first installation position is formed in the side edge of the die supporting structure, a poking locking assembly is arranged in the first installation position in a sliding mode, and the poking locking assembly is in a locking position and an ejection position in the first installation position;

when the poking locking assembly is in the locking position, the poking locking assembly locks the insert assembly in the second installation position;

when the poking locking assembly is positioned at the ejection position, the poking locking assembly ejects the insert assembly out of the second installation position.

Preferably, the mold support structure comprises a mold template for supporting the mold, the mold template is mounted on a mold base plate, and the first mounting position comprises a slideway and a limiting clamping position;

the slideway is arranged between the die seat plate and the die template, and extends from the lower part of the second installation position to the edge of the die seat plate at the opening side of the first installation position;

a limit stop for the countersunk feature is formed at the junction of the first mounting location and the outer surface.

Preferably, the second mounting position comprises a first hole site and a second hole site, and the first hole site is communicated in the die.

Preferably, the poking locking assembly comprises a supporting leg which is arranged on a connecting surface of the poking locking assembly facing the inner side of the die in a protruding way;

the support leg comprises a first acting surface and a second acting surface, wherein the first acting surface is positioned on the upper side of the support leg, and the second acting surface is positioned on the lower side of the support leg.

Preferably, the connecting surface is provided with two supporting legs, the supporting legs are symmetrically distributed along the perpendicular bisector of the connecting surface, and a notch is formed between the two supporting legs.

Preferably, the front ends of the support legs are provided with guide inclined planes.

Preferably, the toggle locking assembly further comprises a fixing plate, and the fixing plate is mounted on a mounting surface of the toggle locking assembly facing the outer side of the die through a fastener.

Preferably, the insert assembly includes an insert mounting post slidably mounted in the second mounting location, and an insert mounted on the insert mounting post.

Preferably, the insert mounting column is provided with an avoidance groove corresponding to the first acting surface and the second acting surface, and the avoidance groove forms an upper driving inclined plane and a lower driving inclined plane on the insert mounting column;

when the poking locking assembly is positioned at the locking position, the second acting surface is attached to the driving inclined surface at the lower side to realize locking;

when the poking locking assembly is inserted into the ejection position, the second acting surface pushes the driving inclined surface on the upper side to eject the insert assembly out of the second installation position.

The utility model also provides an injection mold, and the quick-change structure is applied to the injection mold.

By adopting the technical scheme, the quick-change structure and the injection mold provided by the utility model have the following beneficial effects compared with the prior art.

(1) Through setting up stirring locking subassembly, will install simultaneously and stir the first installation position setting of locking subassembly at mould bearing structure's lateral wall for can just can operate the side at mould bearing structure to stirring the operation of locking subassembly, need not to shut down the form removal, convenient and fast has improved production efficiency, stirs locking subassembly and changes locking and ejecting two kinds of position states and just can accomplish the locking and the change to the insert, need not to operate the front of mould, can guarantee the quality and the pleasing to the eye of product.

(2) Through divide into first action face and second action face with the upper and lower two sides of stabilizer blade, set up on the subassembly of inlaying simultaneously and dodge the groove, and regard as the drive inclined plane with the upper and lower side of dodging the groove, when stirring locking subassembly and being located the locking position, the locking of subassembly to the realization of the drive inclined plane of second action face laminating downside is stirring locking subassembly and is got into ejecting position when stirring locking subassembly upset then inserting first installation position, the drive inclined plane of second action face promotion upside is with the ejecting second installation position of subassembly of inlaying, convenient operation is swift, two kinds of positional states of the subassembly of inlaying have been realized to the use a part simultaneously.

(3) Through setting up the direction inclined plane on the stabilizer blade for when the stabilizer blade inserts first installation position, the convenience realizes contacting with dodging the groove on the insert subassembly, and carries out the direction of next step.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the assembly of the present utility model;

FIG. 3 is a schematic view of an insert assembly of the present utility model;

FIG. 4 is a schematic view of a toggle lock assembly of the present utility model.

In the figure: 11. a die base plate; 12. a mold template; 121. a first mounting location; 1211. a slideway; 1212. limiting the clamping position; 13. a mold; 131. a second mounting location; 1311. a first hole site; 1312. a second hole site; 14. an insert assembly; 141. insert mounting posts; 142. an insert; 143. an avoidance groove; 1431. a driving inclined plane; 15. toggling the locking assembly; 151. a support leg; 1511. a first active surface; 1512. a second active surface; 1513. a guide slope; 152. a notch; 153. the first avoiding chamfer angle; 154. a fixing plate; 1541. a fastener; 1542. and the second avoiding chamfer angle.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 1-4, the present embodiment provides a quick-change structure, which includes a mold 13, a second mounting location 131 is opened on the mold 13, an insert assembly 14 is installed in the second mounting location 131, the mold 13 is installed on a mold supporting structure, a first mounting location 121 is opened on a side edge of the mold supporting structure, a toggle locking assembly 15 is slidably provided in the first mounting location 121, and further, the toggle locking assembly 15 has two states of a locking position and an ejection position in the first mounting location 121;

when the toggle lock assembly 15 is in the locked position, the toggle lock assembly 15 locks the insert assembly 14 in the second mounting position 131;

when the toggle lock assembly 15 is in the ejection position, the toggle lock assembly 15 ejects the insert assembly 14 out of the second mounting location 131.

Through setting up and stirring locking subassembly 15, will install simultaneously and stir the first installation position 121 setting of locking subassembly 15 at mould bearing structure's lateral wall for can just can operate at mould bearing structure's side to stirring the operation of locking subassembly 15, need not to shut down the form removal, convenient and fast has improved production efficiency.

The locking and replacement of the insert assembly 14 can be completed by shifting the locking assembly 15 to change the locking and ejection states, the front side of the die is not required to be operated, and the complicated copper blocking operation is avoided.

Meanwhile, operations such as polishing are required for each copper plug making, the copper plug is required to be detached when the insert assembly 14 is replaced, the copper plug is required to be made again when the replacement is completed, and time and labor are wasted and consistency of products cannot be guaranteed.

And then after the insert is changed, the possible quality control can not be guaranteed, the die needs to be repaired again, the product production efficiency can be guaranteed by using the design of stirring the locking component 15, the quality and the attractiveness of the produced product are guaranteed, the defects of the two schemes that the front surface fastener of the die is matched with the copper plug mounting insert and the back surface of the die adopts the fastener fixing insert 142 are avoided, and meanwhile, the advantages of the two schemes are reserved.

The mold support structure comprises a mold template 12 for supporting a mold 13, wherein the mold template 12 is installed on a mold base plate 11, so far being the structural characteristic of a conventional injection mold, and further, a first installation position 121 comprises a slideway 1211 and a limiting clamping position 1212;

further, a slide 1211 is provided between the die plate 11 and the die plate 12, and extends from below the second mounting position 131 to the edge of the die plate 11 on the opening side of the first mounting position 121;

a limit stop 1212 for the countersunk feature is formed at the junction of the outer surfaces of first mounting locations 121 and 12.

Preferably, the first mounting location 121 is a cavity formed at the connection between the die plate 11 and the die plate 12, the cavity is partially overlapped with the second mounting location 131, the slide 1211 extends to the side of the die plate 11 along the plane of the bottom of the die plate 121 and the side wall adjacent to the plane of the bottom, and further, the bottom and the side wall of the slide 1211 are directly connected with each other by a round corner, so as to facilitate the sliding in of the locking assembly 15.

The second mounting location 131 includes a first hole site 1311 and a second hole site 1312, the first hole site 1311 being open through the die 13.

Further, a part of the first hole 1311 penetrates the mold 13 upward along the cavity formed by the first mounting position 121, preferably, the part penetrating the mold 13 upward is only disposed on the mold 13, and the mold template 12 is not provided with the second mounting position 131, so as to reduce the processing difficulty and optimize the design strategy.

It is further preferred that a portion of the first hole site 1311 is formed in the bottom wall of the first mounting location 121 on the die plate 11 and is coaxial with the upper portion of the first hole site 1311 in a constant diameter, and further, a chamfer is formed at the connection between the lower portion of the first hole site 1311 and the bottom wall of the first mounting location 121, so that the insert assembly 14 is guided when inserted into the upper portion of the first hole site 1311 and is convenient to install.

The embodiment also provides an injection mold, and the quick-change structure is applied to the injection mold.

Example two

As shown in fig. 1-4, this embodiment provides a quick-change structure, and, based on the first embodiment, the toggle locking component 15 includes a leg 151 extending from a connection surface of the toggle locking component 15 toward the inner side of the mold 13;

further, the leg 151 includes a first acting surface 1511 and a second acting surface 1512, the first acting surface 1511 being located on an upper side of the leg 151, the second acting surface 1512 being located on a lower side of the leg 151. The first surface 1511 is preferably a relief surface, which may be planar or concave, and the second surface 1512 is preferably a beveled surface that mates with the insert assembly 14.

Further, two supporting legs 151 are arranged on the connecting surface, the supporting legs 151 are symmetrically distributed along the perpendicular bisector of the connecting surface, and a gap 152 is formed between the two supporting legs 151.

Preferably, the front ends of the legs 151 are provided with guide ramps 1513. By providing the guide ramp 1513 on the leg 151, it is convenient to provide mating contact with the insert assembly 14 for guiding when the leg 151 is inserted into the first mounting location 121.

Toggle lock assembly 15 further includes a mounting plate 154, with mounting plate 154 mounted on a mounting surface of 15 facing the outside of mold 13 via fasteners 1541.

The volume of the fixing plate 154 is configured to be embedded into the size of the limiting clamping position 1212, the fixing plate 154 and the limiting clamping position 1212 are installed in a clearance mode, further, the four corners of the fixing plate 154 are provided with second avoidance chamfers 1542, the portion, inserted into the first installation position 121, of the fixing plate 154 is provided with first avoidance chamfers 153, and the four corners, facing the fixing plate 154, of the first installation position 121 are rounded, so that the first installation position 121, the poking locking assembly 15 and the movement between the limiting clamping position 1212 and the fixing plate 154 are prevented from being interfered.

The insert assembly 14 includes an insert mounting post 141 slidably mounted in the second mounting location 131, and an insert 142 mounted on the insert mounting post 141.

Preferably, the insert 142 and the insert mounting post 141 are removable structures, which facilitate modular design and also facilitate replacement of the insert mounting post 141 for production operations such as replacement of product models or local features.

Further, the insert mounting post 141 is provided with an avoidance groove 143 corresponding to the first acting surface 1511 and the second acting surface 1512, and the avoidance groove 143 forms an upper driving inclined surface 1431 and a lower driving inclined surface 1431 on the insert mounting post 141;

when the toggle locking assembly 15 is located at the locking position, the second acting surface 1512 is attached to the driving inclined surface 1431 at the lower side to realize locking;

when the toggle lock assembly 15 is inserted into the ejection position, the second action surface 1512 pushes the upper drive ramp 1431 to eject the insert assembly 14 out of the second mounting location 131.

When the scheme is used for production, the die seat plate 11, the die template 12, the die 13, the injection molding machine, corresponding die accessories and the like are installed according to the conventional flow of the prior art.

Then insert mounting post 141 is inserted into first hole 1311, passes through the upper portion of first hole 1311, enters first mounting location 121, and then passes through the lower portion of first hole 1311 under the guidance of the chamfer of the lower portion of first hole 1311, while insert 142 is snapped into second hole 1312 to complete the mounting of insert assembly 14.

Then, the first acting surface 1511 faces upwards, the toggle locking assembly 15 is inserted into the slide 1211 and the insert mounting post 141 provided with the avoiding groove 143 slides into the notch 152, the two support legs 151 clamp the insert mounting post 141, the toggle locking assembly 15 continues to be inserted into the first mounting position 121 until the second acting surface 1512 presses the lower driving inclined surface 1431, the first acting surface 1511 avoids the upper driving inclined surface 1431, and the fixing plate 154 is placed into the limiting clamping position 1212, so that the mounting of the insert 142 relative to the die 13 is completed.

Preferably, a recess is formed at the edge of the limiting catch 1212 to facilitate the removal of the toggle-lock assembly 15 as a whole, or the fastener 1541 on the mounting plate 154 is configured to include a surface that is submerged into the mounting plate 154 and a surface that protrudes from the mounting plate 154 to facilitate the removal of the fastener 1541 of the toggle-lock assembly 15 using the protruding portion.

Preferably, the two drive ramps 1431 are disposed symmetrically along the cross-section of the insert mounting post 141 at the center of the relief slot 143, and the drive ramps 1431 are disposed as inclined ramps toward the side of the toggle lock assembly 15.

When the insert 142 needs to be taken out for trimming or replacement, the toggle locking assembly 15 is pulled out as a whole, turned over by 180 degrees, and then the toggle locking assembly 15 is inserted into the first mounting position 121;

the first acting surface 1511 is changed to avoid the lower driving inclined surface 1431, the second acting surface 1512 is positioned on the upper side, and the second acting surface 1512 is contacted with the upper driving inclined surface 1431 during the process of inserting the toggle locking component 15 into the first mounting position 121;

along with the gradual extension of the toggle locking assembly 15 into the first mounting position 121, the second action surface 1512 slides along the driving inclined surface 1431 at the upper side, and the insert assembly 14 is integrally ejected upwards, the insert 142 is ejected out of the upper surface of the die 13, then the toggle locking assembly 15 is pulled out, interference is avoided, and the insert assembly 14 is pulled out from the die 13, so that the insert assembly 14 is detached.

The embodiment also provides an injection mold, and the quick-change structure is applied to the injection mold.

Example III

In the second embodiment, the driving inclined plane 1431 is arranged to be symmetrical along the central section of the avoidance groove 143, so that the arrangement is convenient to design and process, meanwhile, one of the two surfaces of the first acting surface 1511 and the second acting surface 1512 is used as an acting surface, the other one is used for avoiding the existing mechanism, and other arrangement is not needed, so that the device is convenient and quick.

However, the toggle locking assembly 15 is provided with a co-operating compression action with the insert assembly 14, and in precision dies, improvements can be made to this design to provide a tighter bond and enhanced support compression action.

The improvement of this embodiment compared to the above-described embodiment is as follows:

the design and processing precision of the matching surfaces of the toggle locking component 15 and the first mounting position 121 are improved, and the relative position relation of the toggle locking component 15 in the die template 12 is ensured;

the machining precision of the supporting leg 151 and the two acting surfaces of the supporting leg 151 are improved, and the machining precision and the assembly precision of the insert mounting post 141, the insert 142 mounting surface, the first hole site 1311 and the second hole site 1312 are improved at the same time, and particularly, the machining precision of the driving inclined surface 1431 is paid attention to, and the precision of the matching of the driving inclined surface 1431 and the second acting surface 1512 is a key for ensuring the assembly quality of the die 13 and the insert 142.

Further preferably, the driving inclined surface 1431 is not provided with two symmetrical surfaces, and the first acting surface 1511 and the second acting surface 1512 on the poking locking assembly 15 in the locking position are provided with two asymmetrical surfaces in a fitting and locking state, when unlocking is required, the other poking locking assembly 15 is used for realizing the function of ejecting the insert assembly 14;

or, the driving inclined plane 1431 or the second acting plane 1512 on the upper side is alternatively set as an inclined plane with larger inclination, and the other driving inclined plane is set as an inclined plane with smaller inclination, so that the same poking locking assembly 15 can complete locking work and ejection work.

The embodiment also provides an injection mold, and the quick-change structure is applied to the injection mold.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides a quick change structure, includes mould (13), it has second installation position (131) to open on mould (13), install in second installation position (131) and insert subassembly (14), its characterized in that: the die (13) is arranged on a die supporting structure, a first mounting position (121) is formed in the side edge of the die supporting structure, a poking locking assembly (15) is arranged in the first mounting position (121) in a sliding mode, and the poking locking assembly (15) is in a locking position and an ejection position in the first mounting position (121);

when the poking locking assembly (15) is in a locking position, the poking locking assembly (15) locks the insert assembly (14) in the second mounting position (131);

when the poking locking assembly (15) is positioned at the ejection position, the poking locking assembly (15) ejects the insert assembly (14) out of the second mounting position (131).

2. A quick change structure according to claim 1, characterized in that: the die supporting structure comprises a die template (12) for supporting the die (13), the die template (12) is installed on a die base plate (11), and the first installation position (121) comprises a slideway (1211) and a limiting clamping position (1212);

the slideway (1211) is arranged between the die base plate (11) and the die template (12), and extends from the lower part of the second installation position (131) to the edge of the die base plate (11) at the opening side of the first installation position (121);

a limit stop (1212) for the countersunk feature is formed at the junction of the first mounting location (121) and the outer surface of (12).

3. A quick change structure according to claim 1, characterized in that: the second mounting position (131) comprises a first hole site (1311) and a second hole site (1312), and the first hole site (1311) is communicated in the die (13).

4. A quick change structure according to any one of claims 1-3, characterized in that: the poking locking assembly (15) comprises supporting legs (151) which are arranged on the connecting surface of the poking locking assembly (15) facing the inner side of the die (13) in an extending mode;

the support leg (151) comprises a first acting surface (1511) and a second acting surface (1512), the first acting surface (1511) is located on the upper side of the support leg (151), and the second acting surface (1512) is located on the lower side of the support leg (151).

5. A quick change structure according to claim 4, wherein: the connecting surface is provided with two supporting legs (151), the supporting legs (151) are symmetrically distributed along the perpendicular bisectors of the connecting surface, and a notch (152) is formed between the two supporting legs (151).

6. A quick change structure according to claim 4, wherein: the front ends of the supporting legs (151) are provided with guide inclined planes (1513).

7. A quick change structure according to claim 4, wherein: the toggle locking assembly (15) further comprises a fixing plate (154), and the fixing plate (154) is installed on an installation surface of the toggle locking assembly (15) facing the outer side of the die (13) through a fastener (1541).

8. A quick change structure according to claim 4, wherein: the insert assembly (14) includes an insert mounting post (141) slidably mounted in the second mounting location (131), and an insert (142) mounted on the insert mounting post (141).

9. A quick change structure according to claim 8, wherein: an avoidance groove (143) is formed in the insert mounting column (141) corresponding to the first acting surface (1511) and the second acting surface (1512), and the avoidance groove (143) forms an upper driving inclined surface (1431) and a lower driving inclined surface (1431) on the insert mounting column (141);

when the toggle locking component (15) is positioned at the locking position, the second acting surface (1512) is attached to the driving inclined surface (1431) at the lower side to realize locking;

when the poking locking assembly (15) is inserted into the ejection position, the second acting surface (1512) pushes the upper driving inclined surface (1431) to eject the insert assembly (14) out of the second mounting position (131).

10. An injection mold, wherein a quick change structure according to any one of claims 1-9 is applied to the injection mold.