CN111571942B - Mold structure capable of quickly replacing insert - Google Patents
Mold structure capable of quickly replacing insert Download PDFInfo
- Publication number
- CN111571942B CN111571942B CN202010422901.5A CN202010422901A CN111571942B CN 111571942 B CN111571942 B CN 111571942B CN 202010422901 A CN202010422901 A CN 202010422901A CN 111571942 B CN111571942 B CN 111571942B
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- Prior art keywords
- connecting rod
- insert
- rod
- groove
- locking
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
- B29C45/2675—Mounting of exchangeable mould inserts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a die structure capable of quickly replacing an insert, which comprises an insert, a module, a die holder, a connecting rod and a lock rod; the first end of the connecting rod is provided with a convex block, the bottom of the insert is provided with a holding tank for the main body of the connecting rod to extend into, the wall of the holding tank is provided with a groove, and the groove is matched with the convex block; the module is provided with a through hole communicated with the bottom of the mounting groove, and the connecting rod main body can pass through the through hole; the second end of the connecting rod can extend out of the bottom of the module, and a clamping groove is formed in the second end of the connecting rod; the locking rod is arranged below the module, and the axis of the locking rod is vertical to the central line of the connecting rod; a clamping block deviating from the axis of the locking rod is arranged at the first end of the locking rod; the second end of the lock rod can be connected with the side surface of the die holder in a locking manner; the locking lever is rotatable about a locking lever axis to transition between a first state and a second state. The mold disclosed by the invention can be used for replacing the insert quickly and conveniently without disassembling a special clamp tool.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a mold structure capable of quickly replacing inserts.
Background
The insert is an irregular mold part embedded in the mold, which is helpful for exhausting, cooling, processing, replacing or modifying the mold and saving the height of the mold core. And in the case that the front surface of the insert is the glue position part, the front surface of the insert cannot be locked by screws. In the prior art, as shown in fig. 1, a mold insert 1 is usually locked at the bottom of the mold insert 1 by a screw 2 after installation, or the mold insert 1 is pressed by a hanging table 3 structure. However, for interchangeable products, the insert needs to be replaced to produce another product, and the existing structure is difficult to replace the insert and needs professional fitter assembly.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the mould structure which can rapidly and conveniently replace the insert without special clamping tools for removing the mould.
In order to solve the technical problem, the invention provides a die structure capable of quickly replacing an insert, which comprises the insert, a module and a die holder, wherein the module is arranged on the die holder, the module is provided with an installation groove, and the insert is matched with the installation groove; the mould structure also comprises a connecting rod and a locking rod; the first end of the connecting rod is provided with a convex block which is convex towards the direction far away from the central line of the connecting rod, the bottom of the insert is provided with a holding tank for the main body of the connecting rod to extend into, the wall of the holding tank is provided with a groove which is concave towards the side surface of the insert, and the groove is matched with the convex block; the module is provided with a through hole communicated with the bottom of the mounting groove, and the connecting rod main body can pass through the through hole; the second end of the connecting rod can extend out of the bottom of the module, and a clamping groove which is sunken towards the central line of the connecting rod is formed in the second end of the connecting rod; the locking rod is arranged below the module, and the axis of the locking rod is vertical to the central line of the connecting rod; a clamping block deviating from the axis of the locking rod is arranged at the first end of the locking rod; the second end of the lock rod can be connected with the side surface of the die holder in a locking manner; the locking bar is rotatable about a locking bar axis to transition between a first state and a second state; when the lock rod is in a first state, the clamping block is positioned above the end face of the second end of the connecting rod and clamped with the clamping groove; when the locking rod is in the second state, the clamping block is abutted to the end face of the second end of the connecting rod, so that the connecting rod moves for a preset distance along the direction of the second end of the connecting rod pointing to the first end of the connecting rod.
The mold structure further comprises a pressing plate, the second end of the locking rod is connected with the first end of the pressing plate, and the second end of the pressing plate is connected with the side face of the mold base through a detachable threaded fastener.
The further technical scheme is that the insert comprises an upper surface and glue grooves positioned on two sides of the insert, and the upper surface and the glue grooves are glue positions; the preset distance is greater than the distance from the bottom of the glue groove to the bottom surface of the insert.
The further technical scheme is that the lock rod is arranged in the die holder, and a cavity for the lock rod and the second end of the connecting rod to extend into is arranged in the die holder.
The further technical proposal is that the second end of the lock rod is provided with a screw for pulling the lock rod.
The further technical scheme is that the end face of the second end of the connecting rod is an arc face or an inclined face, and the arc face or the inclined face extends from the center of the arc face or the inclined face to the edge of the arc face or the inclined face along the direction of the second end of the connecting rod pointing to the first end of the connecting rod.
The further technical scheme is that the clamping grooves are formed in two sides of the second end of the connecting rod, or the clamping grooves are annularly formed in the circumferential direction of the second end of the connecting rod.
The further technical scheme is that the protruding block at the first end of the connecting rod and the connecting rod main body form an extending end with a T-shaped section, and the accommodating groove and the groove form a T-shaped groove.
The further technical scheme is that the T-shaped groove extends transversely or longitudinally along the bottom of the insert and forms an opening on the side surface of the insert.
The further technical scheme is that the die structure also comprises a rear panel and a front die assembly, and the die holder is connected with the rear panel; the front mold assembly further comprises a front panel, a stripper plate, a front mold plate and a shaping block which are sequentially connected, and the shaping block corresponds to the mold block in position.
Compared with the prior art, the invention can obtain the following beneficial effects:
in the mold, the connecting rod hooks the insert, and the locking rod locks the connecting rod so as to lock the insert and finish the installation; when the insert is replaced, the locking rod is reversed, and the locking rod ejects the insert through the connecting rod, so that the insert is conveniently taken out for replacement. The mold disclosed by the invention does not need to be disassembled by a special clamp tool, an injection molding worker can replace the insert by himself, the structure can be replaced quickly and conveniently, and the mold is particularly suitable for replacing the insert to produce different products.
Drawings
Fig. 1 is a schematic structural view of a mold in the prior art.
Fig. 2 is a schematic view of a mold structure embodiment of the quick change insert of the present invention in a first state.
Fig. 3 is a schematic view of a mold structure embodiment of the quick change insert of the present invention in a second state.
Fig. 4 is a schematic view of a portion of a connecting rod, an insert and a module in an embodiment of the quick insert change mold structure of the present invention.
Fig. 5 is a side view of the second end of the connecting rod in an embodiment of the quick-change insert molding apparatus of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Detailed Description
As shown in fig. 2 to 5, the present embodiment provides a mold structure capable of rapidly exchanging an insert, including an insert 10, a mold block 20, a mold base 30, a connecting rod 40, a locking rod 50, a pressing plate 60, a rear panel 70, and a front mold assembly 80.
The module 20 is disposed on a mold base 30, the mold base 30 is connected to a rear panel 70, and the rear panel 70 is used for being mounted on an injection molding device. The module 20 is provided with a mounting groove 21, and the insert 10 is matched with the mounting groove 21. In the present embodiment, the rear mold assembly including the insert 10, the mold block 20, the mold base 30, the rear panel 70, and the like, and the front mold assembly 80 together constitute a mold for preparing an injection molded product by opening and closing the mold. The front mold assembly 80 may include a front panel 81, a stripper plate 82, a front mold plate 83, and a setting block 84 connected in sequence, the setting block 84 corresponding to the position of the module 20. The front mold assembly and the rear mold assembly can be driven by injection molding equipment to move relatively to realize mold closing and mold opening, the molding block 84 is in contact with the module 20 during mold closing, a molding cavity can be formed between the molding block 84 and the insert 10 or between the molding block 84 and the insert 10 and the module 20, and plastic is injected into the molding cavity through a runner of the front mold assembly 80 for molding.
As shown in fig. 4, a first end of the connecting rod 40 is provided with a convex block 41 protruding in a direction away from a center line of the connecting rod 40, the bottom of the insert 10 is provided with a receiving groove 11 into which a main body of the connecting rod 40 extends, a groove wall of the receiving groove 11 is provided with a groove 12 recessed toward a side surface of the insert 10, and the groove 12 is engaged with the convex block 41. Preferably, the number of the protrusions 41 may be two, two protrusions 41 are protruded to both sides, respectively, or the protrusions 41 are protruded annularly around the body of the connecting rod 40, so that the protrusion 41 of the first end of the connecting rod 40 and the body of the connecting rod 40 form an extending end with a T-shaped cross section. Preferably, the number of the grooves 12 may be two, the two grooves 12 are respectively recessed towards two sides of the insert 10, the accommodating groove 11 and the grooves 12 form a T-shaped groove, and the T-shaped groove is matched with the T-shaped extending end, so that the connecting structure between the connecting rod 40 and the insert 10 is stressed more uniformly, and the structure is more stable. Preferably, the T-shaped groove extends transversely or longitudinally along the bottom of the insert 10 and forms an opening in the side of the insert 10 to facilitate the snapping of the connecting bar 40 into the T-shaped groove from one side.
The module 20 is provided with a through hole 22 communicating with the bottom of the mounting groove 21, and the body of the connecting rod 40 can pass through the through hole 22. The connecting rod 40 body is matched with the through hole 22, and the through hole 22 can play a role in allowing the connecting rod 40 to pass through and positioning the connecting rod 40. Specifically, after the extending end of the connecting rod 40 is snapped into the T-shaped groove and moved to a specific position such as the middle position of the T-shaped groove, the insert 10 is placed in the mounting groove 21, the connecting rod 40 extends into the through hole 22, and the mounting groove 21 and the through hole 22 can limit the displacement of the insert 10 and the connecting rod 40 in the direction perpendicular to the center line of the connecting rod 40. The connecting rod 40 may be cylindrical, prismatic, or other suitable shape, the centerline of the connecting rod 40 may refer to a line connecting the first end of the connecting rod 40 and the second end of the connecting rod 40, and the connecting rod 40 may be rotationally symmetric with respect to its centerline or mirror symmetric with respect to its centerline.
The second end of the connecting rod 40 may extend from the bottom of the module 20. as shown in fig. 5, the second end of the connecting rod 20 is provided with a notch 42 that is recessed toward the centerline of the connecting rod 40. Preferably, the number of the locking grooves 42 is 2, 2 locking grooves 42 are disposed on both sides of the second end of the connecting rod 40, or the locking grooves 42 are annularly disposed in the circumferential direction of the second end of the connecting rod 40, so that the first end of the locking lever 50 can be locked from at least two directions. Preferably, the end surface of the second end of the connecting rod 40 is an arc surface or an inclined surface 43, and the arc surface or the inclined surface 43 extends from the center of the arc surface or the inclined surface 43 to the edge of the arc surface or the inclined surface 43 along the direction from the second end of the connecting rod 40 to the first end of the connecting rod 40, i.e. the center of the arc surface or the inclined surface 43 protrudes outwards relative to the edge of the arc surface or the inclined surface 43, so that the first end of the lock lever 50 can be more smoothly matched when jacking up the second end of the connecting rod 40.
The locking bar 50 is disposed below the module 20 with the axis of the locking bar 50 perpendicular to the centerline of the connecting rod 40. The locking rod 50 may be disposed in the mold base 30, and a cavity for the locking rod 50 and the second end of the connecting rod 40 to extend into is disposed in the mold base 30, and the cavity may be used for the locking rod 50 to rotatably support the locking rod 50.
The first end of the locking lever 50 is provided with a latch 51 deviating from the axis of the locking lever 50. The locking rod 50 can rotate around the axis of the locking rod 50 to switch between a first state and a second state, as shown in fig. 2, when the locking rod 50 is in the first state, the latch 51 is located above the second end face of the connecting rod 40 and is engaged with the latch groove 42, so as to lock the connecting rod 40 and thus the insert 10. As shown in fig. 3, when the locking rod 50 is in the second state, the latch 51 abuts against the end surface of the second end of the connecting rod 40, so that the connecting rod 40 moves a preset distance 44 along the direction from the second end of the connecting rod 40 to the first end of the connecting rod 40, and the displacement of the connecting rod 40 drives the insert 10 to eject, so that the insert 10 can be taken out for replacement. Preferably, the insert 10 includes an upper surface and glue grooves located at two sides of the insert, the upper surface and the glue grooves are glue positions, and the preset distance 44 is greater than the distance 13 from the bottom of the glue groove to the bottom surface of the insert 10, so that the insert 10 can be taken out at a position other than the glue positions after the insert 10 is ejected, and damage to the glue positions of the insert 10 is avoided.
The second end of the lock lever 50 is lockably connected to a side of the die holder 30. Specifically, the second end of the lock rod 50 is connected to the first end of the press plate 60, and the second end of the press plate 60 is connected to the side of the die holder 30 through a detachable threaded fastener 61, so that the lock rod 50 can be conveniently locked and unlocked from the side of the die holder 30, and the lock rod 50 can be connected to the press plate 60 by clamping, screwing or other existing connection methods, so that the lock rod 50 cannot rotate relative to the press plate 60. The threaded fasteners may be screws or the like. The second end of the lock rod 50 is provided with a lock pulling rod screw 52 for assembling and disassembling the lock rod 50 and rotating the lock rod 50, for example, the lock pulling rod screw 52 is fixedly connected with the lock rod 50, the lock rod 50 can be rotated by rotating the head of the lock pulling rod screw 52 with a tool, and the lock rod 50 can be pulled out by clamping the head of the lock pulling rod screw 52 with the tool. After the insert 10 is mounted and the connecting rod 40 is locked by the locking rod 50, the pressing plate 60 is locked to complete the mounting. When the insert 10 is replaced, the platen 60 is removed and the locking bar 50 is reversed, allowing the insert 10 to be ejected through the connecting rod 40.
Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the invention, which is not intended to limit the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The invention relates to a die structure capable of quickly replacing an insert, which comprises an insert, a module, a die holder, a connecting rod and a lock rod; the first end of the connecting rod is provided with a convex block, the bottom of the insert is provided with a holding tank for the main body of the connecting rod to extend into, the wall of the holding tank is provided with a groove, and the groove is matched with the convex block; the module is provided with a through hole communicated with the bottom of the mounting groove, and the connecting rod main body can pass through the through hole; the second end of the connecting rod can extend out of the bottom of the module, and a clamping groove is formed in the second end of the connecting rod; the locking rod is arranged below the module, and the axis of the locking rod is vertical to the central line of the connecting rod; a clamping block deviating from the axis of the locking rod is arranged at the first end of the locking rod; the second end of the lock rod can be connected with the side surface of the die holder in a locking manner; the locking lever is rotatable about a locking lever axis to transition between a first state and a second state. The mold disclosed by the invention can be used for replacing the insert quickly and conveniently without disassembling a special clamp tool.
Claims (7)
1. The mold structure capable of rapidly replacing the insert comprises the insert, a module and a mold base, wherein the module is arranged on the mold base, the module is provided with an installation groove, and the insert is matched with the installation groove; the method is characterized in that:
the mould structure also comprises a connecting rod and a locking rod;
the first end of the connecting rod is provided with a convex block protruding in the direction far away from the central line of the connecting rod, the bottom of the insert is provided with an accommodating groove for the main body of the connecting rod to extend into, the wall of the accommodating groove is provided with a groove sunken towards the side surface of the insert, and the groove is matched with the convex block; the module is provided with a through hole communicated with the bottom of the mounting groove, and the connecting rod main body can penetrate through the through hole; the second end of the connecting rod can extend out of the bottom of the module, and a clamping groove which is concave towards the central line of the connecting rod is formed in the second end of the connecting rod;
the locking rod is arranged below the module, and the axis of the locking rod is vertical to the central line of the connecting rod; a clamping block deviating from the axis of the locking rod is arranged at the first end of the locking rod; the second end of the lock rod can be connected with the side surface of the die holder in a locking manner;
the locking bar is capable of rotating around the locking bar axis so as to switch between a first state and a second state; when the lock rod is in the first state, the clamping block is positioned above the end face of the second end of the connecting rod and clamped with the clamping groove; when the lock rod is in the second state, the clamping block is abutted against the end face of the second end of the connecting rod, so that the connecting rod moves a preset distance along the direction of the second end of the connecting rod pointing to the first end of the connecting rod;
the end face of the second end of the connecting rod is an arc face or an inclined face, and the arc face or the inclined face extends from the center of the arc face or the inclined face to the edge of the arc face or the inclined face along the direction of the second end of the connecting rod pointing to the first end of the connecting rod;
the clamping grooves are arranged on two sides of the second end of the connecting rod, or the clamping grooves are annularly arranged on the periphery of the second end of the connecting rod;
the die structure further comprises a pressing plate, the second end of the locking rod is connected with the first end of the pressing plate, and the second end of the pressing plate is connected with the side face of the die holder through a detachable threaded fastener.
2. The mold structure capable of quick insert change according to claim 1, wherein:
the insert comprises an upper surface and glue grooves positioned on two sides of the insert, and the upper surface and the glue grooves are both glue positions; the preset distance is larger than the distance from the bottom of the glue groove to the bottom surface of the insert.
3. The quick insert change mold structure according to claim 1, wherein:
the lock rod is arranged in the die holder, and a cavity for the lock rod and the second end of the connecting rod to extend into is arranged in the die holder.
4. The mold structure for quick insert change according to any one of claims 1 to 3, wherein:
and a lock pulling rod screw is arranged at the second end of the lock rod.
5. The mold structure for quick insert change according to any one of claims 1 to 3, wherein:
the convex block at the first end of the connecting rod and the connecting rod main body form an extending end with a T-shaped section, and the accommodating groove and the groove form a T-shaped groove.
6. The mold structure capable of quick insert change according to claim 5, wherein:
the T-shaped groove extends transversely or longitudinally along the bottom of the insert and forms an opening on the side surface of the insert.
7. The mold structure for quick insert change according to any one of claims 1 to 3, wherein:
the die structure also comprises a rear panel and a front die assembly, and the die holder is connected with the rear panel; the front die assembly further comprises a front panel, a stripper plate, a front die plate and a shaping block which are sequentially connected, and the shaping block corresponds to the die block in position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010422901.5A CN111571942B (en) | 2020-05-19 | 2020-05-19 | Mold structure capable of quickly replacing insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010422901.5A CN111571942B (en) | 2020-05-19 | 2020-05-19 | Mold structure capable of quickly replacing insert |
Publications (2)
| Publication Number | Publication Date |
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| CN111571942A CN111571942A (en) | 2020-08-25 |
| CN111571942B true CN111571942B (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010422901.5A Active CN111571942B (en) | 2020-05-19 | 2020-05-19 | Mold structure capable of quickly replacing insert |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008691A (en) * | 2022-06-22 | 2022-09-06 | 深圳兴精科塑胶模具有限公司 | Blind insert mold and method for realizing rapid mold change |
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| CA2069334A1 (en) * | 1989-10-16 | 1991-04-17 | Marianne Wieser | Mould for injection moulding machines |
| CN101954685A (en) * | 2009-07-17 | 2011-01-26 | 深圳市群达行精密模具有限公司 | Casting insert interchange structure of injection mold |
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| CN111571942A (en) | 2020-08-25 |
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