CN220841239U - Eccentric long core-pulling preventing mechanism of injection mold for double-sided welded plastic tray - Google Patents
Eccentric long core-pulling preventing mechanism of injection mold for double-sided welded plastic tray Download PDFInfo
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- CN220841239U CN220841239U CN202322594170.4U CN202322594170U CN220841239U CN 220841239 U CN220841239 U CN 220841239U CN 202322594170 U CN202322594170 U CN 202322594170U CN 220841239 U CN220841239 U CN 220841239U
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- core pulling
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- 239000004033 plastic Substances 0.000 title claims abstract description 109
- 229920003023 plastic Polymers 0.000 title claims abstract description 109
- 238000002347 injection Methods 0.000 title claims abstract description 29
- 239000007924 injection Substances 0.000 title claims abstract description 29
- 238000000465 moulding Methods 0.000 claims abstract description 78
- 238000001746 injection moulding Methods 0.000 claims abstract description 48
- 238000003466 welding Methods 0.000 claims abstract description 23
- 230000001360 synchronised effect Effects 0.000 claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims description 39
- 230000002457 bidirectional effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 16
- 239000012768 molten material Substances 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002991 molded plastic Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of molds, and particularly relates to an anti-eccentric long core-pulling mechanism of an injection mold for a double-sided welding plastic tray. The utility model comprises a plastic tray forming lower die and a plastic tray forming upper die, wherein a lower forming paneling is arranged in the plastic tray forming lower die. In the injection molding process, the lower plastic tray molding die and the upper plastic tray molding die are mutually close, so that the lower molding panel is in abutting fit with the upper molding insert to form a complete cavity, the tray groove synchronous molding core-pulling assembly is matched with the cavity to mold a groove structure of the tray, molten materials are injected into the cavity through the injection molding piece, after injection molding is finished, the die is opened, the tray groove synchronous molding core-pulling assembly is firstly pulled away from one side of a plastic piece, in the pulling process, a limiting structure is adopted, eccentric deviation in the core-pulling process is avoided, the core-pulling accuracy is ensured, a plurality of plastic pieces are ejected through the cross type ejection assembly, and the molding quality of the plastic piece is higher.
Description
Technical Field
The utility model belongs to the technical field of molds, and relates to an anti-eccentric long core-pulling mechanism of an injection mold for a double-sided welded plastic tray.
Background
The tray is a plastic product which is widely used for carrying articles in daily life and products in factories, and is mainly formed by injection molding of a tray injection mold. At present, a core pulling structure is generally adopted for auxiliary forming of a groove on a tray plastic part, and the area of the tray is large, so that the core pulling structure is long, and in the core pulling process, the long core pulling structure is easy to eccentric offset when carrying out long-stroke core pulling, so that the core pulling accuracy is influenced. Therefore, it is necessary to design an anti-eccentric long core-pulling mechanism of a double-sided welding plastic tray injection mold, which can overcome the defects.
In order to overcome the defects in the prior art, people have continuously explored and put forward various solutions, such as chinese patent discloses a tray mold [ application number: 201720070090.0] including the die carrier, be provided with cover half, movable mould in the die carrier, be provided with the die cavity on the movable mould, be provided with the core on the cover half, when cover half and movable mould compound die, the core inserts in the die cavity and the space between core and the die cavity is the die cavity unanimous with the tray structure, but be provided with side slip side and take out the piece on the cover half, be connected with on the side take out the piece and insert the die cavity and be used for forming the core bar that supplies the billet to penetrate, core bar quantity is many pairs, the tip of each pair of core bar all sets up in opposite directions, and the tip of each pair of core bar all inserts each other and closes, the tip an organic whole of one of them core bar is provided with the triangle-shaped bulge in every pair of core bar, the tip of another core bar is provided with the concave part unanimous with this bulge shape.
Disclosure of utility model
The utility model aims to solve the problems and provides an anti-eccentric long core pulling mechanism of an injection mold for a double-sided welding plastic tray.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a long mechanism of loosing core of two-sided welding plastic tray injection mold anti-eccentric, includes plastic tray shaping lower mould and plastic tray shaping upper mould, plastic tray shaping lower mould in be equipped with lower part shaping paneling, plastic tray shaping upper mould in be equipped with upper portion shaping panel, lower part shaping paneling and the position of upper portion shaping panel correspond and the shape matches and fit, plastic tray shaping upper mould top be equipped with the injection molding, plastic tray shaping lower mould and plastic tray shaping upper mould between be equipped with the synchronous shaping of tray groove and loose core subassembly, the synchronous shaping of tray groove loose core subassembly correspond with the position of lower part shaping paneling, plastic tray shaping lower mould below be equipped with the ejecting subassembly of crossing, the ejecting subassembly of crossing correspond with the position of lower part shaping paneling.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the tray groove synchronous forming core pulling assembly comprises two core pulling plate sliding seats arranged between the plastic tray forming lower mold and the plastic tray forming upper mold, a plurality of tray groove forming core pulling plates are arranged on the core pulling plate sliding seats, an anti-eccentric part is arranged on the plastic tray forming lower mold, and the tray groove forming core pulling plates are in sliding fit with the anti-eccentric part.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the anti-eccentric part comprises an anti-eccentric positioning plate arranged on the plastic tray molding lower mold, and the tray groove molding core pulling plate penetrates through the anti-eccentric positioning plate and is in sliding fit with the anti-eccentric positioning plate.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the plastic tray molding lower mold is provided with the air cylinder, and the power shaft of the air cylinder is connected with the core pulling plate sliding seat.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the plastic tray molding lower mold is provided with the bidirectional parallel limiting part, and the core pulling plate sliding seat is in sliding fit with the bidirectional parallel limiting part.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the bidirectional parallel limiting part comprises a plurality of limiting shafts arranged on the plastic tray molding lower mold, and the limiting shafts penetrate through the core pulling plate sliding seat and are in sliding fit with the core pulling plate sliding seat.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the plastic tray molding lower mold is provided with the bottom limiting seat, the bottom limiting seat is provided with the two limiting convex strips, and the core pulling plate sliding seat is in sliding fit with the limiting convex strips.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the injection molding piece comprises an injection molding main board arranged above the plastic tray molding upper mold, and an injection molding splitter plate is arranged below the injection molding main board.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, the crossed ejection assembly comprises four crossed ejector blocks arranged below the plastic tray molding lower mold, two crossed ejector blocks are in a group, parallel sliding clamping blocks are arranged between two adjacent crossed ejector blocks, and the crossed ejector blocks are matched with the parallel sliding clamping blocks in a clamping manner.
In the anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold, a top block connecting sliding plate is arranged below the plastic tray molding lower mold, and the top block connecting sliding plate is connected with the cross top block through an inclined sliding rod.
Compared with the prior art, the utility model has the advantages that:
1. In the injection molding process, the lower plastic tray molding die and the upper plastic tray molding die are mutually close, so that the lower molding panel is in abutting fit with the upper molding insert to form a complete cavity, the tray groove synchronous molding core-pulling assembly is matched with the cavity to mold a groove structure of the tray, molten materials are injected into the cavity through the injection molding piece, after injection molding is finished, the die is opened, the tray groove synchronous molding core-pulling assembly is firstly pulled away from one side of a plastic piece, in the pulling process, a limiting structure is adopted, eccentric deviation in the core-pulling process is avoided, the core-pulling accuracy is ensured, a plurality of plastic pieces are ejected through the cross type ejection assembly, and the molding quality of the plastic piece is higher.
2. After injection molding cooling core pulling is completed, the die is opened, the parallel sliding clamping blocks 20 are moved to one end far away from the cross ejector blocks 19 until the parallel sliding clamping blocks are separated, at the moment, the molded plastic part is ejected through the cross ejector blocks 19, and the cross ejection structure is adopted, so that the ejection area and the ejection accuracy are improved, and meanwhile, the injection molding machine is provided with the ejection locking structure, and the ejection structure cannot deviate during injection molding.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partial structural schematic of the present utility model.
Fig. 3 is a schematic view of a partial structure of another aspect of the present utility model.
Fig. 4 is a schematic view of a partial structure of another aspect of the present utility model.
In the figure: the plastic tray molding lower die 1, the plastic tray molding upper die 2, the lower molding panel 3, the upper molding insert 4, the injection molding piece 5, the tray groove synchronous molding core pulling assembly 6, the cross type ejection assembly 7, the core pulling plate sliding seat 8, the tray groove molding core pulling plate 9, the eccentric prevention piece 10, the eccentric prevention positioning plate 11, the air cylinder 12, the bidirectional parallel limiting part 13, the limiting shaft 14, the bottom limiting seat 15, the limiting raised strips 16, the injection molding main board 17, the injection molding split board 18, the cross top block 19, the parallel sliding clamping blocks 20, the top block connecting sliding plate 21 and the inclined sliding rod 22.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in figures 1-4, the anti-eccentric long core pulling mechanism of the injection mold for the double-sided welded plastic tray comprises a lower plastic tray molding die 1 and an upper plastic tray molding die 2, wherein a lower molding panel 3 is arranged in the lower plastic tray molding die 1, an upper molding insert 4 is arranged in the upper plastic tray molding die 2, the lower molding panel 3 corresponds to the upper molding insert 4 in position and is matched with the upper molding insert in shape, an injection molding piece 5 is arranged above the upper plastic tray molding die 2, a tray groove synchronous molding core pulling assembly 6 is arranged between the lower plastic tray molding die 1 and the upper plastic tray molding die 2, the tray groove synchronous molding core pulling assembly 6 corresponds to the position of the lower molding panel 3, a cross type ejection assembly 7 is arranged below the lower plastic tray molding die 1, and the cross type ejection assembly 7 corresponds to the position of the lower molding panel 3.
In this embodiment, in the injection molding process, with plastics tray shaping lower mould 1 and plastics tray shaping upper mould 2 be close to each other for lower part shaping paneling 3 and upper portion shaping insert 4 butt cooperation form complete die cavity, tray groove synchronous shaping loose core subassembly 6 cooperatees with the die cavity, be used for the groove structure of shaping tray, the molten material is injected into in the die cavity through injection molding 5, accomplish after the injection molding, open the mould, take out tray groove synchronous shaping loose core subassembly 6 to keeping away from one side of moulding, take out in the process of taking out, adopt limit structure, avoid taking off the center deviation in the process of loosing core, ensure the accuracy of loosing core, the rethread cross ejecting subassembly 7 is with the ejecting several of moulding, moulding quality of moulding is higher.
Referring to fig. 1-4, the core-pulling assembly 6 comprises two core-pulling plate sliding seats 8 arranged between a plastic tray forming lower die 1 and a plastic tray forming upper die 2, a plurality of tray groove forming core-pulling plates 9 are arranged on the core-pulling plate sliding seats 8, an anti-eccentric part 10 is arranged on the plastic tray forming lower die 1, and the tray groove forming core-pulling plates 9 are in sliding fit with the anti-eccentric part 10.
Specifically, in the injection molding process, the tray groove forming core drawing plate 9 is matched with the cavity to form a groove structure of the tray, after injection molding is completed, the mold is opened, the core drawing plate sliding seat 8 is firstly drawn away to one side far away from a plastic part, the tray groove forming core drawing plate 9 is driven to draw core, in the drawing away process, the tray groove forming core drawing plate 9 is in sliding fit with the anti-eccentric part 10, eccentric deviation in the core drawing process is avoided, and the core drawing accuracy is ensured.
The anti-eccentric part 10 comprises an anti-eccentric positioning plate 11 arranged on the plastic tray forming lower die 1, and the tray groove forming core drawing plate 9 penetrates through the anti-eccentric positioning plate 11 and is in sliding fit with the anti-eccentric positioning plate 11.
In the embodiment, in the process of pulling away, the tray groove forming core pulling plate 9 is in sliding fit with the anti-eccentric positioning plate 11, so that eccentric deviation in the core pulling process is avoided, and the core pulling accuracy is ensured.
Referring to fig. 1 and 3, an air cylinder 12 is arranged on the lower plastic tray molding die 1, and a power shaft of the air cylinder 12 is connected with the core pulling plate sliding seat 8.
In this embodiment, when the slide seat 8 of the core plate needs to be moved, the cylinder 12 is started, so that the degree of automation is high.
The plastic tray molding lower die 1 is provided with a bidirectional parallel limiting part 13, and the core pulling plate sliding seat 8 is in sliding fit with the bidirectional parallel limiting part 13.
In the embodiment, in the sliding process of the core pulling plate sliding seat 8, the core pulling plate sliding seat 8 is subjected to bidirectional parallel limiting through the bidirectional parallel limiting part 13, so that the core pulling accuracy is further ensured.
Referring to fig. 3, the bidirectional parallel limiting part 13 includes a plurality of limiting shafts 14 arranged on the plastic tray molding lower die 1, the limiting shafts 14 penetrate through the core pulling plate sliding seat 8 and are in sliding fit with the core pulling plate sliding seat 8, a bottom limiting seat 15 is arranged on the plastic tray molding lower die 1, two limiting raised strips 16 are arranged on the bottom limiting seat 15, and the core pulling plate sliding seat 8 is in sliding fit with the limiting raised strips 16.
In this embodiment, in the sliding process of the core pulling plate sliding seat 8, the core pulling plate sliding seat 8 is subjected to bidirectional parallel limiting through the limiting shaft 14 and the limiting convex strips 16, so that the core pulling accuracy is further ensured.
Referring to fig. 1-2, the injection molding part 5 includes an injection molding main board 17 disposed above the plastic tray molding upper mold 2, and an injection molding splitter plate 18 is disposed below the injection molding main board 17.
In this embodiment, the molten material is injected through the injection molding main plate 17, and injection molding and flow distribution are performed through the injection molding flow distribution plate 18.
Referring to fig. 1-4, the cross ejection assembly 7 includes four cross ejector blocks 19 disposed below the plastic tray molding lower mold 1, two cross ejector blocks 19 are a group, parallel sliding clamping blocks 20 are disposed between two adjacent cross ejector blocks 19, and the cross ejector blocks 19 are in clamping fit with the parallel sliding clamping blocks 20.
In this embodiment, after injection cooling core pulling is completed, the mold is opened, the parallel sliding clamping block 20 is moved to one end far away from the cross ejector block 19 until the parallel sliding clamping block is separated from the cross ejector block 19, and at this time, the molded plastic part is ejected through the cross ejector block 19, and the cross ejection structure is adopted, so that the ejection area and precision are improved.
Referring to fig. 4, a top block connecting slide plate 21 is arranged below the plastic tray forming lower die 1, and the top block connecting slide plate 21 is connected with the cross top block 19 through an inclined slide bar 22.
In this embodiment, the inclined slide rod 22 is used to connect the top block connecting slide plate 21 with the cross top block 19, and the top block connecting slide plate 21 can move to synchronously drive the cross top block 19 to move.
The working principle of the utility model is as follows:
In the injection molding process, the plastic tray molding lower die 1 and the plastic tray molding upper die 2 are mutually close to each other, so that the lower molding panel 3 and the upper molding insert 4 are in abutting fit to form a complete cavity, the tray groove molding core drawing plate 9 is matched with the cavity to mold a groove structure of the tray, molten materials are injected into the injection molding main board 17 and are subjected to injection molding and flow distribution through the injection molding flow distribution plate 18, after the injection molding is completed, the die is opened, the core drawing plate sliding seat 8 is firstly pulled away to one side far away from a plastic part to drive the tray groove molding core drawing plate 9 to draw core, in the pulling-away process, the tray groove molding core drawing plate 9 is in sliding fit with the anti-eccentric positioning plate 11 to avoid eccentric deviation in the core drawing process, the core drawing accuracy is ensured,
When the slide seat 8 of the core drawing plate needs to be moved, the cylinder 12 is started, the degree of automation is higher,
In the sliding process of the core pulling plate sliding seat 8, the core pulling plate sliding seat 8 is subjected to bidirectional parallel limiting through the limiting shaft 14 and the limiting convex strips 16, so that the core pulling accuracy is further ensured, molten materials are injected into the injection molding main plate 17 and are subjected to injection molding and flow distribution through the injection molding flow distribution plate 18,
After injection molding cooling core pulling is completed, the mold is opened, the parallel sliding clamping block 20 is moved to one end far away from the cross ejector block 19 until the parallel sliding clamping block is separated, at the moment, the molded plastic part is ejected through the cross ejector block 19, the cross ejection structure is adopted, the ejection area and the ejection accuracy are improved,
The inclined slide bar 22 is used for connecting the top block connecting slide plate 21 with the cross top block 19, and the movement of the top block connecting slide plate 21 can synchronously drive the cross top block 19 to move.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model.
Although terms such as the plastic tray molding lower mold 1, the plastic tray molding upper mold 2, the lower molding panel 3, the upper molding insert 4, the injection molding 5, the tray slot synchronous molding core back assembly 6, the cross-type ejector assembly 7, the core back plate slider 8, the tray slot molding core back plate 9, the eccentric prevention member 10, the eccentric prevention positioning plate 11, the cylinder 12, the bi-directional parallel stopper 13, the stopper shaft 14, the bottom stopper 15, the stopper rib 16, the injection molding main plate 17, the injection molding split plate 18, the cross-type ejector block 19, the parallel slide block 20, the ejector block connecting slide plate 21, the diagonal slide bar 22 are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.
Claims (10)
1. The utility model provides a long mechanism of loosing core of two-sided welding plastic tray injection mold anti-eccentric, includes plastic tray shaping lower mould (1) and plastic tray shaping upper mould (2), its characterized in that, plastic tray shaping lower mould (1) in be equipped with lower part shaping panel (3), plastic tray shaping upper mould (2) in be equipped with upper portion shaping insert (4), lower part shaping panel (3) and upper portion shaping insert (4) the position corresponding and the shape match fit, plastic tray shaping upper mould (2) top be equipped with injection molding (5), plastic tray shaping lower mould (1) and plastic tray shaping upper mould (2) between be equipped with tray groove synchronous shaping loose core subassembly (6), tray groove synchronous shaping loose core subassembly (6) and lower part shaping panel (3) the position corresponding, plastic tray shaping lower mould (1) below be equipped with cross ejecting subassembly (7), cross ejecting subassembly (7) and lower part shaping panel (3) the position corresponding.
2. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 1, wherein the tray groove synchronous forming core pulling assembly (6) comprises two core pulling plate sliding seats (8) arranged between a plastic tray forming lower mold (1) and a plastic tray forming upper mold (2), a plurality of tray groove forming core pulling plates (9) are arranged on the core pulling plate sliding seats (8), an anti-eccentric part (10) is arranged on the plastic tray forming lower mold (1), and the tray groove forming core pulling plates (9) are in sliding fit with the anti-eccentric part (10).
3. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 2, wherein the anti-eccentric part (10) comprises an anti-eccentric positioning plate (11) arranged on the plastic tray molding lower mold (1), and the tray groove molding core pulling plate (9) penetrates through the anti-eccentric positioning plate (11) and is in sliding fit with the anti-eccentric positioning plate (11).
4. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 3, wherein the plastic tray molding lower mold (1) is provided with an air cylinder (12), and a power shaft of the air cylinder (12) is connected with a core pulling plate sliding seat (8).
5. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 4, wherein the plastic tray molding lower mold (1) is provided with a bidirectional parallel limiting part (13), and the core pulling plate sliding seat (8) is in sliding fit with the bidirectional parallel limiting part (13).
6. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 5, wherein the bidirectional parallel limiting part (13) comprises a plurality of limiting shafts (14) arranged on the plastic tray molding lower mold (1), and the limiting shafts (14) penetrate through the core pulling plate sliding seat (8) and are in sliding fit with the core pulling plate sliding seat (8).
7. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 6, wherein the plastic tray molding lower mold (1) is provided with a bottom limiting seat (15), the bottom limiting seat (15) is provided with two limiting convex strips (16), and the core pulling plate sliding seat (8) is in sliding fit with the limiting convex strips (16).
8. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 7, wherein the injection molding piece (5) comprises an injection molding main board (17) arranged above the plastic tray molding upper mold (2), and an injection molding split board (18) is arranged below the injection molding main board (17).
9. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 8, wherein the cross type ejection assembly (7) comprises four cross ejector blocks (19) arranged below the plastic tray molding lower mold (1), two cross ejector blocks (19) are in a group, parallel sliding clamping blocks (20) are arranged between two adjacent cross ejector blocks (19), and the cross ejector blocks (19) are matched with the parallel sliding clamping blocks (20) in a clamping way.
10. The anti-eccentric long core pulling mechanism of the double-sided welding plastic tray injection mold according to claim 9, wherein a top block connecting sliding plate (21) is arranged below the plastic tray molding lower mold (1), and the top block connecting sliding plate (21) is connected with the cross top block (19) through an inclined sliding rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322594170.4U CN220841239U (en) | 2023-09-22 | 2023-09-22 | Eccentric long core-pulling preventing mechanism of injection mold for double-sided welded plastic tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322594170.4U CN220841239U (en) | 2023-09-22 | 2023-09-22 | Eccentric long core-pulling preventing mechanism of injection mold for double-sided welded plastic tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220841239U true CN220841239U (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322594170.4U Active CN220841239U (en) | 2023-09-22 | 2023-09-22 | Eccentric long core-pulling preventing mechanism of injection mold for double-sided welded plastic tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220841239U (en) |
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2023
- 2023-09-22 CN CN202322594170.4U patent/CN220841239U/en active Active
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