CN214562583U

CN214562583U - Universal oil pressure core-pulling die for precise plastic products

Info

Publication number: CN214562583U
Application number: CN202120381139.0U
Authority: CN
Inventors: 何顺俊
Original assignee: Taicang T&W Electronics Co Ltd
Current assignee: Taicang T&W Electronics Co Ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-11-02
Anticipated expiration: 2031-02-20

Abstract

The utility model discloses a general oil pressure loose core mould for precise plastic products, which comprises a fixed mould block and a movable mould block, wherein the fixed mould block comprises an upper top plate, an upper fixed plate arranged below the upper top plate and an upper mould core arranged below the upper fixed plate; the movable mould block comprises a bottom plate, a lower fixed plate arranged above the bottom plate and a lower mould core arranged on the lower fixed plate, a slide block is arranged outside the lower mould core in a sliding mode, an oil cylinder is arranged on the lower fixed plate, the piston rod end of the oil cylinder is connected with the slide block, a mould cavity is formed by the upper mould core, the lower mould core and the slide block when the mould is closed, a glue inlet is formed in an upper top plate, and the glue inlet is communicated with the mould cavity through a flow channel; an ejector pin fixing plate and an ejector pin plate are arranged between the bottom plate and the lower fixing plate, an inclined ejector pull rod is arranged on the ejector pin plate, an inclined ejector core block is connected to the upper end of the inclined ejector pull rod, and the upper end of the inclined ejector core block is located in the cavity after penetrating through the lower fixing plate. The utility model discloses simple manufacture, reasonable in design, the precision is high, has improved production efficiency, has reduced the disability rate in the production.

Description

Universal oil pressure core-pulling die for precise plastic products

Technical Field

The utility model relates to the technical field of mold, especially, relate to a general oil pressure loose core mould of accurate plastic product.

Background

At present, the accurate plastic product of router, what current mould adopted is oblique wedge type slider, and the motion mode and orbit are: the guide block is used for reciprocating up and down along the direction of 10 degrees of the guide groove as a track, the upward movement power pushes the slide block through the elastic force of the spring, and the downward movement power compresses the spring through the mold closing force of the injection molding machine to enable the slide block to return; because the power source that adopts is the elasticity of spring, the ascending driving force is extremely unstable, leads to the guide block and the clearance of guide way great, when moulding plastics production, the slider up-and-down reciprocating motion has slight swing.

When the injection molding appearance requirement is high, the surface is A1 polished, the size requirement is high, and the size requirement is +/-0.02, grooves and holes formed by the sliding block can cause the problems of strain and size enlargement of the product appearance through the swinging of the sliding block during movement; meanwhile, the existing production efficiency is low, and the rejection rate is high. Therefore, on the basis, the invention of the universal oil pressure core-pulling die has very important significance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough of above-mentioned prior art, provide a general oil pressure loose core mould of accurate plastic product.

In order to solve the above problems, the utility model adopts the following technical proposal:

a general oil pressure core-pulling die for precision plastic products comprises a fixed die block and a movable die block, wherein the fixed die block comprises an upper top plate, an upper fixed plate arranged below the upper top plate and an upper die core arranged below the upper fixed plate; the movable mould comprises a bottom plate, a lower fixing plate arranged above the bottom plate and a lower mould core arranged on the lower fixing plate, wherein slide blocks are arranged on two sides of the lower mould core in a sliding manner, an oil cylinder is arranged on the lower fixing plate, a piston rod end of the oil cylinder is connected with the slide blocks, a mould cavity is formed by the upper mould core, the lower mould core and the slide blocks when the mould is closed, a glue inlet is formed in an upper top plate, and the glue inlet is communicated with the mould cavity through a flow passage;

an ejector pin fixing plate and an ejector pin plate are arranged between the bottom plate and the lower fixing plate, an inclined ejector pull rod is arranged on the ejector pin plate, an inclined ejector core block is connected to the upper end of the inclined ejector pull rod, and the upper end of the inclined ejector core block penetrates through the lower fixing plate and then is located in the cavity.

Furthermore, the lower end face of the lower fixing plate is provided with a guide block, a guide hole corresponding to the inclined top pull rod is formed in the guide block, and the inclined top pull rod is arranged in the guide hole in a sliding mode.

Furthermore, a T-shaped groove is formed in the top of the inclined ejector pull rod, a T-shaped block matched with the T-shaped groove is arranged at the bottom of the inclined ejector core block, and the T-shaped block is clamped in the T-shaped groove.

Further, an oil cylinder support is arranged on the lower fixing plate and is formed into an L-shaped plate, a bottom plate of the L-shaped plate is fixed on the lower fixing plate, the oil cylinder is fixedly arranged on a vertical plate of the L-shaped plate, and a through hole for a piston rod of the oil cylinder to pass through is formed in the vertical plate of the L-shaped plate.

Furthermore, a first guide sleeve is arranged on the lower end face of the upper fixing plate, a first guide pillar is correspondingly arranged on the lower fixing plate, and the first guide pillar is slidably inserted into the first guide sleeve.

Furthermore, a second guide pillar is arranged on the bottom plate, guide holes are correspondingly formed in the ejector fixing plate and the ejector plate, a second guide sleeve is arranged in each guide hole, the second guide pillar is inserted into the second guide sleeve, and the ejector fixing plate and the ejector plate are arranged on the second guide pillar in a sliding mode.

Further, a mold foot is arranged between the bottom plate and the lower fixing plate.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model uses the oil cylinder as power to drive the slide block to move back and forth in a reciprocating way, thereby increasing the technology of the electronic and mechanical cooperative operation, improving the problem of slight swing of the slide block, enhancing the aesthetic degree of the surface of the plastic product and the size precision of the product, and enhancing the manufacturing capability of the plastic mould to complex plastic parts; the utility model discloses simple manufacture, reasonable in design, the precision is high, has improved production efficiency, has reduced the disability rate in the production.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention.

In the figure: 1. an upper top plate; 2. an upper fixing plate; 3. an upper die core; 4. a base plate; 5. a lower fixing plate; 6. a lower die core; 7. a slider; 8. a glue inlet; 9. a thimble fixing plate; 10. an ejector plate; 11. a slanted ejecting pull rod; 12. obliquely ejecting the core block; 13. a guide block; 14. a T-shaped groove; 15. a T-shaped block; 16. an oil cylinder; 17. a cylinder support; 18. a first guide sleeve; 19. a first guide post; 20. a second guide post; 21. a second guide sleeve; 22. a mould leg; 23. and (5) producing the product.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-2, the general oil pressure core pulling mold for precision plastic products of the present invention includes a fixed mold block and a movable mold block, wherein the fixed mold block includes an upper top plate 1, an upper fixed plate 2 disposed below the upper top plate 1, and an upper mold core 3 disposed below the upper fixed plate 2, the upper top plate 1 and the upper fixed plate 2 are connected by bolts, and the upper fixed plate 2 and the upper mold core 3 are connected by bolts; the movable module comprises a bottom plate 4, a mold foot 22 arranged above the bottom plate 4, a lower fixing plate 5 arranged above the mold foot 22 and a lower mold core 6 arranged on the lower fixing plate 5, the bottom plate 4, the mold foot 22 and the lower fixing plate 5 are fixed through bolts, the lower end of the lower mold core 6 is provided with a base, the base is fixed on the lower fixing plate 5 through a pressing block, two sides of the lower mold core 6 are provided with sliders 7 in a sliding mode, the sliders are U-shaped, the two sliders 7 are closed to surround the lower mold core 6, an oil cylinder 16 is arranged on the lower fixing plate 5, the piston rod end of the oil cylinder 16 is connected with the sliders 7, the upper mold core 3, the lower mold core 6 and the sliders 7 form a mold cavity when the mold is closed, a glue inlet 8 is arranged on the upper top plate 1, and the glue inlet 8 is communicated with the mold cavity through a flow channel;

be provided with ejector fixing plate 9 and thimble board 10 between bottom plate 4 and the

bottom plate

5, 9 boards are fixed at thimble board 10 below to the thimble, and ejector fixing plate 9 and thimble board 10 pass through bolt fixed connection, have seted up the through-hole on the bottom plate, and injection molding machine ejection mechanism (not drawn in the picture) of being convenient for is connected with ejector fixing plate 9 bottom, promotes ejector fixing plate 9 and thimble board 10 up-and-down motion, be provided with three oblique ejector tie rod 11 on the thimble board 10, the lower extreme of oblique ejector tie rod 11 passes through the bolt fastening on thimble board 10, the upper end of oblique ejector tie rod 11 is connected with oblique ejector core block 12, pass oblique ejector core block 12 upper end be located the die cavity behind the bottom plate 5, the inside wall of oblique ejector core block is laminated with lower mould benevolence 6 mutually, is provided with a plurality of archs on the oblique ejector core block lateral wall for mould on the piece pore-forming.

Furthermore, the lower end surface of the lower fixing plate 5 is fixedly provided with a guide block 13 through a bolt, the guide block 13 is provided with a guide hole corresponding to the inclined top pull rod 11, the inclined top pull rod 11 is slidably arranged in the guide hole, and the operation stability of the inclined top pull rod 11 is ensured in the upward pushing process of the ejector fixing plate and the ejector plate.

Furthermore, the top of the inclined ejector pull rod 11 is provided with a T-shaped groove 14, the bottom of the inclined ejector core block 12 is provided with a T-shaped block 15 matched with the T-shaped groove 14, and the T-shaped block 15 is clamped in the T-shaped groove 14, so that the structure is simple, and the disassembly and the assembly are convenient.

Further, an oil cylinder support 17 is arranged on the lower fixing plate 5, the oil cylinder support 17 is an L-shaped plate, a bottom plate of the L-shaped plate is fixed on the lower fixing plate 5 through bolts, the oil cylinder 16 is fixedly arranged on the outer side surface of a vertical plate of the L-shaped plate, and a through hole for a piston rod of the oil cylinder 16 to pass through is formed in the vertical plate of the L-shaped plate. The control system of the injection molding machine is connected with the induction line of the oil cylinder, and signals are transmitted to the control system of the injection molding machine through the induction line of the oil cylinder, so that the injection molding machine controls the advance and retreat sequence, the advance and retreat time and the advance and retreat distance of the piston rod of the oil cylinder, and the perfect electronic and mechanical matching is achieved.

Furthermore, the end of the piston rod of the oil cylinder is provided with a screw rod, the sliding block is correspondingly provided with a screw hole, the piston rod of the oil cylinder is in threaded connection with the sliding block, the screw rod is further provided with a nut, the nut can adjust the matching distance between the piston rod of the oil cylinder and the sliding block in an adjustable mode, and the piston rod of the oil cylinder and the sliding block can be further fixed and cannot loosen in the continuous movement.

Furthermore, a first guide sleeve 18 is arranged on the lower end face of the upper fixing plate 2, a first guide pillar 19 is correspondingly arranged on the lower fixing plate 5, the first guide pillar 19 is slidably inserted into the first guide sleeve 18, and the arrangement of the first guide sleeve 18 and the first guide pillar 19 can ensure that the die assembly is stable and does not deviate when the movable die block and the fixed die block are assembled.

Further, a second guide pillar 20 is arranged on the bottom plate 4, guide holes are correspondingly formed in the ejector fixing plate 9 and the ejector plate 10, a second guide sleeve 21 is arranged in the guide hole, the second guide pillar 20 is inserted into the second guide sleeve 21, the ejector fixing plate 9 and the ejector plate 10 are slidably arranged on the second guide pillar 20, and the arrangement of the second guide pillar 20 and the second guide sleeve 21 can ensure that the ejector fixing plate and the ejector plate move up and down stably.

The utility model discloses the working process:

the movable module is matched with the fixed module under the power pushing of the injection molding machine, and meanwhile, the oil pressure piston rod pushes the sliding block into a mold cavity, and the injection molding machine performs injection molding; after the injection molding is finished, the injection molding machine is opened, the oil cylinder pulls out the core to withdraw the slide block, the ejection mechanism pushes the thimble fixing plate to eject a product, and meanwhile, the ejection mechanism pulls the thimble fixing plate back to the ejection position to enable the inclined ejector core block to return.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A general oil pressure core pulling mold for precise plastic products comprises a fixed mold block and a movable mold block, and is characterized in that the fixed mold block comprises an upper top plate (1), an upper fixed plate (2) arranged below the upper top plate (1) and an upper mold core (3) arranged below the upper fixed plate (2); the movable module comprises a bottom plate (4), a lower fixing plate (5) arranged above the bottom plate (4) and a lower die core (6) arranged on the lower fixing plate (5), wherein sliding blocks (7) are arranged on two sides of the lower die core (6) in a sliding manner, an oil cylinder (16) is arranged on the lower fixing plate (5), a piston rod end of the oil cylinder (16) is connected with the sliding blocks (7), a die cavity is formed by the upper die core (3), the lower die core (6) and the sliding blocks (7) when die assembly is carried out, a glue inlet (8) is arranged on the upper top plate (1), and the glue inlet (8) is communicated with the die cavity through a flow channel;

an ejector pin fixing plate (9) and an ejector pin plate (10) are arranged between the bottom plate (4) and the lower fixing plate (5), an inclined ejector pull rod (11) is arranged on the ejector pin plate (10), the upper end of the inclined ejector pull rod (11) is connected with an inclined ejector core block (12), and the upper end of the inclined ejector core block (12) penetrates through the lower fixing plate (5) and then is located in the cavity.

2. The universal oil-pressure core pulling mold for precise plastic products as claimed in claim 1, wherein a guide block (13) is disposed on a lower end surface of the lower fixing plate (5), a guide hole corresponding to the slanted ejecting pull rod (11) is formed in the guide block (13), and the slanted ejecting pull rod (11) is slidably disposed in the guide hole.

3. The universal oil-pressure core-pulling die for precise plastic products as claimed in claim 1, wherein a T-shaped groove (14) is formed in the top of the inclined ejector pull rod (11), a T-shaped block (15) matched with the T-shaped groove (14) is formed in the bottom of the inclined ejector core block (12), and the T-shaped block (15) is clamped in the T-shaped groove (14).

4. The universal oil pressure core pulling mold for precise plastic products as claimed in claim 1, wherein an oil cylinder support (17) is arranged on the lower fixing plate (5), the oil cylinder support (17) is an L-shaped plate, a bottom plate of the L-shaped plate is fixed on the lower fixing plate (5), the oil cylinder (16) is fixedly arranged on a vertical plate of the L-shaped plate, and a through hole for a piston rod of the oil cylinder (16) to pass through is formed in the vertical plate of the L-shaped plate.

5. The universal oil-pressure core pulling mold for precise plastic products as claimed in claim 1, wherein a first guide sleeve (18) is disposed on a lower end surface of the upper fixing plate (2), a first guide pillar (19) is correspondingly disposed on the lower fixing plate (5), and the first guide pillar (19) is slidably inserted in the first guide sleeve (18).

6. The universal oil-pressure core pulling mold for precise plastic products as claimed in claim 1, wherein a second guide post (20) is disposed on the bottom plate (4), guide holes are correspondingly formed in the ejector fixing plate (9) and the ejector plate (10), a second guide sleeve (21) is disposed in the guide hole, the second guide post (20) is inserted into the second guide sleeve (21), and the ejector fixing plate (9) and the ejector plate (10) are slidably disposed on the second guide post (20).

7. The universal oil pressure core pulling mold for precise plastic products as claimed in claim 1, wherein a mold foot (22) is arranged between the bottom plate (4) and the lower fixing plate (5).