CN110893655A - Thermosetting fiber reinforced molded product back-off molding die structure - Google Patents

Thermosetting fiber reinforced molded product back-off molding die structure Download PDF

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Publication number
CN110893655A
CN110893655A CN201911345656.6A CN201911345656A CN110893655A CN 110893655 A CN110893655 A CN 110893655A CN 201911345656 A CN201911345656 A CN 201911345656A CN 110893655 A CN110893655 A CN 110893655A
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CN
China
Prior art keywords
base
molding
fiber reinforced
inclined surface
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911345656.6A
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Chinese (zh)
Inventor
华正伟
朱凌峰
李军
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Styx Plastics Co Ltd
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Styx Plastics Co Ltd
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Filing date
Publication date
Application filed by Styx Plastics Co Ltd filed Critical Styx Plastics Co Ltd
Priority to CN201911345656.6A priority Critical patent/CN110893655A/en
Publication of CN110893655A publication Critical patent/CN110893655A/en
Pending legal-status Critical Current

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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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/42—Moulds for making articles of definite length, i.e. discrete articles for undercut articles
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded articles
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded articles
    • B29C2043/503—Removing moulded articles using ejector pins, rods
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded articles
    • B29C2043/5084—Removing moulded articles using rotary devices, e.g. turntables or carousels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a die structure for reverse-buckling molding of a thermosetting fiber reinforced die-pressed product, which comprises an upper die and a lower die matched with the upper die, wherein the lower die comprises a lower die body and a reverse-buckling lug which can be detached from the lower die body, the reverse-buckling lug is matched with the corresponding position of the upper die to form a reverse-buckling cavity, and a lifting assembly is arranged below the reverse-buckling lug. The mold for the back-off molding of the thermosetting fiber reinforced molded product is reasonable in structure, the back-off structure specially suitable for molding the thermosetting glass fiber reinforced material molded product is provided, and the phenomenon that the product is back-off and the product cannot be integrally molded during mold pressing production is overcome.

Description

Thermosetting fiber reinforced molded product back-off molding die structure
Technical Field
The invention relates to a structural design of a back-off forming die, in particular to a back-off forming die structure of a thermosetting fiber reinforced molded product.
Background
After the thermosetting fiber reinforced material is molded by a mold pressing process, a large amount of burrs are generated on a product, and the burrs overflow into a matching gap of a mold structure, so that the mold structure is blocked and the mold is damaged. Therefore, the thermosetting fiber reinforced material generally cannot be formed by a core-pulling mechanism to increase the back-off of the material molded product; in the actual production, generally through later stage reworking and product connection, not only destroyed the wholeness of product, also increased work load, production efficiency is low.
Therefore, there is a need for an improvement of the prior art mold structure for reverse-molding thermosetting fiber-reinforced molded products.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a mold structure for back-off molding of a thermosetting fiber reinforced molded product, and overcomes the phenomenon that the back-off and the product cannot be integrally molded during mold pressing production.
In order to realize the technical effects, the technical scheme of the invention is as follows: the utility model provides a fashioned mould structure of thermosetting fiber reinforcement moulding product back-off, its characterized in that, including last mould and with last mould complex bed die, the bed die includes bed die body and with removable back-off lug (41) of bed die body, back-off lug (41) correspond the position with last mould and cooperate and form the back-off die cavity, the below of back-off lug (41) is provided with lifting unit. Through such design, with the liftable design of back-off lug, the back-off lug moves upwards together along with the product in the product back-off, until the product can take out from the side, the product back-off breaks away from the back-off lug.
The preferable technical scheme is that the lifting assembly comprises a base (5), a connecting rod (42), a base and a lifting mechanism for driving the base to lift, wherein the base (5) is fixedly connected with a frame; the inverted lug (41) is fixedly connected with the base through the connecting rod (42); the lifting mechanism is fixedly connected with the base (5); the frame is provided with a guide block guiding the connecting rod (42). Through such design, reach the purpose that the base goes up and down.
The preferable technical scheme is that the lifting mechanism is a hydraulic machine (51), a cylinder body of the hydraulic machine (51) is fixedly connected with the base (5), and a piston rod of the hydraulic machine (51) is connected with the base. Through the design, the lifting of the base is ensured, and the inverted convex block moves upwards together in the inverted buckle of the product; as an equivalent alternative, the hydraulic machine can also be a servo motor and lead screw combination.
The rotating assembly (4) comprises a base, the base comprises an upper base (43) and a lower base (44), the upper base (43) is fixedly connected with the inverted lug (41) through the connecting rod (42), one side of the upper base (43) is connected with one side of the lower base (44) through a rotating shaft (45), and a pressure spring (46) is clamped between the other side of the upper base (43) and the other side of the lower base (44); the lower base (44) is provided with an upper base accommodating groove (441), the lower base (44) is provided with a through hole (442) for the hydraulic machine (51) to pass through, and a hydraulic rod of the hydraulic machine (51) is in contact with the bottom end face of the upper base (43).
The preferable technical scheme is that the rotating assembly (4) further comprises a guide assembly fixedly connected with the frame, the guide assembly comprises a first limiting block (2), and the first limiting block (2) is provided with a first inclined surface (21); the upper base (43) is provided with a third inclined surface (431) matched with the first inclined surface (21); the third ramp (431) extends downward as a third vertical mating guide surface (434). Through such design, the rotating assembly is ejected upwards, and under the pushing action of the first inclined plane, the rotating assembly rotates around the rotating shaft, the upper base rotates around the rotating shaft, and the inverted buckle bump is thoroughly separated from the inverted buckle of the product.
The preferable technical scheme is that the guide assembly further comprises a second limiting block (3), the first limiting block (2) and the second limiting block (3) are positioned on two sides of the swing direction of the connecting rod (42), the second limiting block (3) is provided with a second inclined plane (31) parallel to the first inclined plane (21), and the connecting rod (42) is provided with a fourth inclined plane (432) matched with the second inclined plane (31); the fourth ramp (432) extends upwardly into a fourth vertical mating guide surface (435); the fourth vertical mating guide surface (435) and the third vertical mating guide surface (434) are arranged in parallel. Through such design, when rotating assembly revolved the rotation of axes, the second inclined plane can play the supporting role down, keeps the steady of rotary motion.
Preferably, a limit block (443) for preventing the upper base (43) from popping up is fixedly arranged on the top end surface of the lower base (44). Through such design, can guarantee that the upper base can not pop out under the effect of pressure spring, guarantee the stability of upper base.
The invention has the advantages and beneficial effects that: the invention has reasonable structure of the reverse buckle forming die of the thermosetting fiber reinforced molded product, provides the reverse buckle structure specially suitable for forming the thermosetting glass fiber reinforced material molded product, overcomes the phenomenon that the reverse buckle and the product can not be integrally formed during the molding production, enlarges the flexibility of the structural design of the molded product, and enables the product to be applied and designed in a wider range.
Drawings
FIG. 1 is a schematic structural view of an embodiment 1 of a mold structure for back-molding a thermosetting fiber-reinforced molded product of the present invention;
FIG. 2 is a schematic structural view of an embodiment 2 of a mold structure for back-molding a thermosetting fiber-reinforced molded product of the present invention;
FIG. 3 is an enlarged view at A in a schematic structural view of a mold structure for back-molding a thermosetting fiber-reinforced molded product of the present invention in accordance with example 2;
FIG. 4 is a schematic view of another embodiment of the reverse-molding mold structure of the thermosetting fiber-reinforced molded product of the present invention as shown in FIG. 2;
FIG. 5 is an enlarged view at C of another perspective structural view of embodiment 2 of the molded article for reverse molding of a thermosetting fiber-reinforced plastic of the present invention;
FIG. 6 is a schematic structural view of a product 1 in example 2 of a mold structure for back-molding a thermosetting fiber-reinforced molded product of the present invention;
FIG. 7 is an enlarged view at B in the schematic structural view of a molded article 1 according to example 2 of the reverse-molding of a thermosetting fiber-reinforced molded article of the present invention;
FIG. 8 is an enlarged view of a reverse-buckling projection 41 in example 2 of the mold structure for reverse-buckling a thermosetting fiber-reinforced molded product of the present invention;
FIG. 9 is a schematic structural view of the rotating member 4 in example 2 of the structure of the reverse-molding die for the thermosetting fiber-reinforced molded product of the present invention;
FIG. 10 is a schematic diagram of a second stopper 3 and a second inclined surface 31 in embodiment 2 of the mold structure for back-off molding of a thermosetting fiber reinforced molded product according to the present invention;
FIG. 11 is a schematic view of a first stopper 2 and a first inclined surface 21 in embodiment 2 of a mold structure for back-off molding of a thermosetting fiber reinforced molded product according to the present invention;
FIG. 12 is a sectional view of the upper base 43, the lower base 44 and the base 5 of the mold structure of example 2 of the reversed molding of the thermosetting fiber-reinforced molded product of the present invention;
FIG. 13 is a schematic view of a reverse-molding mold structure of a thermoset fiber reinforced molded product of the present invention, example 2, with the rotating assembly 4 mated with the product 1;
FIG. 14 is a schematic view of a mold structure for back-off molding of a thermosetting fiber-reinforced molded product of the present invention 2 in which the rotating member 4 is being detached from the product back-off 11;
FIG. 15 is a schematic view of a mold structure for back-molding a thermosetting fiber-reinforced molded product of the present invention, example 2, in which the rotating member 4 is completely detached from the product back-off 11.
In the figure: 1. producing a product; 11. the product is turned upside down; 2. a first stopper; 21. a first inclined plane; 3. a second limiting block; 31. a second inclined plane; 4. a rotating assembly; 41. reversing the convex block; 42. a connecting rod; 43. an upper base; 431. a third inclined plane; 432. a fourth slope; 434. a third vertically mating guide surface; 435. a fourth vertically cooperating guide surface; 44. a lower base; 441. an upper base accommodating groove; 442. a through hole; 443. a limiting block; 45. a rotating shaft; 46. a pressure spring; 5. A base; 51. and (4) a hydraulic press.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 1, the mold structure for reverse-molding a thermosetting fiber reinforced molded product according to embodiment 1 includes an upper mold and a lower mold matched with the upper mold, the lower mold includes a lower mold body and a reverse-locking protrusion 41 detachable from the lower mold body, the reverse-locking protrusion 41 is matched with a corresponding position of the upper mold to form a reverse-locking cavity, and a lifting assembly is disposed below the reverse-locking protrusion 41.
The lifting assembly comprises a base 5, a connecting rod 42, a base and a lifting mechanism for driving the base to lift, and the base 5 is fixedly connected with the frame; the inverted buckle lug 41 is fixedly connected with the base through a connecting rod 42; the frame is provided with guide blocks guiding the connecting rods 42.
The lifting mechanism is a hydraulic machine 51, a cylinder body of the hydraulic machine 51 is fixedly connected with the base 5, and a piston rod of the hydraulic machine 51 is connected with the base.
After the mold pressing is completed, the upper mold and the lower mold are opened, the inverted convex block 41 is ejected upwards under the action of the hydraulic machine 51 until the product 1 is separated from the lower mold, the product 1 is manually taken down from the side, and the inverted convex block 41 is separated from the inverted buckle 11 of the product.
Example 2
As shown in fig. 2 to 14, embodiment 2 differs from embodiment 1 in that it further includes a rotating assembly 4, the rotating assembly 4 includes a base, the base includes an upper base 43 and a lower base 44, the upper base 43 is fixedly connected with the inverted buckle protrusion 41 through a connecting rod 42, one side of the upper base 43 is connected with one side of the lower base 44 through a rotating shaft 45, and a pressure spring 46 is interposed between the other side of the upper base 43 and the other side of the lower base 44; the lower base 44 is provided with an upper base accommodation groove 441, the lower base 44 is provided with a through hole 442 for the hydraulic machine 51 to pass through, and a hydraulic rod of the hydraulic machine 51 is in contact with the bottom end surface of the upper base 43.
The rotating assembly 4 further comprises a guide assembly fixedly connected with the frame, the guide assembly comprises a first limiting block 2, and the first limiting block 2 is provided with a first inclined surface 21; the upper base 43 is provided with a third slope 431 matching with the first slope 21; the third ramp 431 extends downward as a third vertical mating guide surface 434.
The guide assembly further comprises a second limiting block 3, the first limiting block 2 and the second limiting block 3 are located on two sides of the swing direction of the connecting rod 42, the second limiting block 3 is provided with a second inclined surface 31 parallel to the first inclined surface 21, and the connecting rod 42 is provided with a fourth inclined surface 432 matched with the second inclined surface 31; the fourth ramp 432 extends upwardly as a fourth vertical mating guide surface 435; the fourth vertical mating guide surface 435 and the third vertical mating guide surface 434 are arranged in parallel.
A stopper 443 for preventing the upper base 43 from being ejected is fixedly provided on the top end surface of the lower base 44.
After the mould pressing is finished, the upper mould and the lower mould of the mould are opened, the rotating assembly 4 moves upwards under the action of ejection of the hydraulic machine 51, and the rotating assembly 4 moves linearly at the moment; after the third inclined surface 431 and the first inclined surface 21 start to contact, the rotating assembly 4 rotates around the rotating shaft 45 under the limiting action of the first inclined surface 21 and enters a rotating core-pulling process, at the moment, the third inclined surface 431 and the first inclined surface 21 slide to move, the fourth inclined surface 432 and the second inclined surface 31 slide to move, and the rotating assembly 4 is pushed by the first limiting block 2 and supported by the second limiting block 3 to keep the rotating motion stable; until the rotating assemblies 4 continue to eject upwards, the corresponding rotating assemblies 4 continue to rotate around the rotating shafts 45, and the inverted buckle lugs 41 completely separate from the product inverted buckles 11; so that the product 1 can be taken out of the mould.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a fashioned mould structure of thermosetting fiber reinforcement moulding product back-off, its characterized in that, including last mould and with last mould complex bed die, the bed die includes bed die body and with removable back-off lug (41) of bed die body, back-off lug (41) correspond the position with last mould and cooperate and form the back-off die cavity, the below of back-off lug (41) is provided with lifting unit.
2. The structure of a thermosetting fiber reinforced molding product reverse-buckling molding mold according to claim 1, wherein the lifting assembly comprises a base (5), a connecting rod (42), a base and a lifting mechanism for driving the base to lift, and the base (5) is fixedly connected with a frame; the inverted lug (41) is fixedly connected with the base through the connecting rod (42); the lifting mechanism is fixedly connected with the base (5); the frame is provided with a guide block guiding the connecting rod (42).
3. The reverse-molding mold structure for thermosetting fiber reinforced molding products according to claim 2, wherein the lifting mechanism is a hydraulic machine (51), a cylinder of the hydraulic machine (51) is fixedly connected with the base (5), and a piston rod of the hydraulic machine (51) is connected with the base.
4. The thermosetting fiber reinforced molding product inverted molding die structure according to claim 3, further comprising a rotating assembly (4), wherein the rotating assembly (4) comprises a base, the base comprises an upper base (43) and a lower base (44), the upper base (43) is fixedly connected with the inverted bump (41) through the connecting rod (42), one side of the upper base (43) is connected with one side of the lower base (44) through a rotating shaft (45), and a pressure spring (46) is clamped between the other side of the upper base (43) and the other side of the lower base (44); the lower base (44) is provided with an upper base accommodating groove (441), the lower base (44) is provided with a through hole (442) for the hydraulic machine (51) to pass through, and a hydraulic rod of the hydraulic machine (51) is in contact with the bottom end face of the upper base (43).
5. The thermoset fiber reinforced molded product undercut molding die structure of claim 4, wherein the rotating assembly (4) further comprises a guide assembly fixedly connected with the frame, the guide assembly comprises a first stopper (2), and the first stopper (2) is provided with a first inclined surface (21); the upper base (43) is provided with a third inclined surface (431) matched with the first inclined surface (21); the third ramp (431) extends downward as a third vertical mating guide surface (434).
6. The mold structure for back-off molding of a thermosetting fiber reinforced molding product according to claim 5, wherein the guide assembly further comprises a second stopper (3), the first stopper (2) and the second stopper (3) are located on both sides of the swinging direction of the connecting rod (42), the second stopper (3) is provided with a second inclined surface (31) parallel to the first inclined surface (21), and the connecting rod (42) is provided with a fourth inclined surface (432) matching with the second inclined surface (31); the fourth ramp (432) extends upwardly into a fourth vertical mating guide surface (435); the fourth vertical mating guide surface (435) and the third vertical mating guide surface (434) are arranged in parallel.
7. The molding structure for reverse-molding a thermosetting fiber-reinforced molded product according to claim 6, wherein a stopper (443) for preventing the ejection of the upper base (43) is fixedly provided to the top end surface of the lower base (44).
CN201911345656.6A 2019-12-24 2019-12-24 Thermosetting fiber reinforced molded product back-off molding die structure Pending CN110893655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911345656.6A CN110893655A (en) 2019-12-24 2019-12-24 Thermosetting fiber reinforced molded product back-off molding die structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911345656.6A CN110893655A (en) 2019-12-24 2019-12-24 Thermosetting fiber reinforced molded product back-off molding die structure

Publications (1)

Publication Number Publication Date
CN110893655A true CN110893655A (en) 2020-03-20

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ID=69788086

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911345656.6A Pending CN110893655A (en) 2019-12-24 2019-12-24 Thermosetting fiber reinforced molded product back-off molding die structure

Country Status (1)

Country Link
CN (1) CN110893655A (en)

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