CN220903992U - Mould for motor car wallboard - Google Patents
Mould for motor car wallboard Download PDFInfo
- Publication number
- CN220903992U CN220903992U CN202322562378.8U CN202322562378U CN220903992U CN 220903992 U CN220903992 U CN 220903992U CN 202322562378 U CN202322562378 U CN 202322562378U CN 220903992 U CN220903992 U CN 220903992U
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- China
- Prior art keywords
- liquid
- mould
- motor car
- moulding plastics
- upper die
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- 239000007788 liquid Substances 0.000 claims abstract description 61
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000001746 injection moulding Methods 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of motor car part manufacturing dies, in particular to a die for a motor car wallboard, which comprises an upper die and a lower die, wherein the upper die is matched with the lower die up and down; this kind of mould for motor car wallboard through being provided with electric putter, the dog, sealing washer and gasbag, drives the dog through electric putter and removes, the dog is used for cuting the liquid of moulding plastics, the dog can seal the shaping chamber between mould and the lower mould, thereby avoid moulding plastics liquid adhesion product, and the liquid of moulding plastics is stable place in the feed liquor downthehole, can avoid the condition of moulding plastics liquid jam, avoid moulding plastics liquid backward flow through the check valve, under the protection of gasbag, the dog cuts the liquid of moulding plastics when, the liquid of moulding plastics of backward flow extrudees the gasbag, firstly avoid moulding plastics liquid to cause the impact to the check valve, secondly guarantee that the liquid of moulding plastics receives the extrusion and flows, avoid moulding plastics liquid to solidify, thereby prevent to mould plastics liquid jam.
Description
Technical Field
The utility model relates to the technical field of motor car part manufacturing dies, in particular to a die for a motor car wallboard.
Background
The motor car is a vehicle with a power device in rail transit, a large number of wallboards are assembled in the motor car to be used as decorations, the existing motor car wallboards are produced and manufactured by adopting mold injection molding, and the injection molding has the characteristics of high production speed and high efficiency, and is one of important methods for mass production of motor car wallboards;
However, when the existing injection molding die for the motor car wallboard is used, injection molding liquid cannot be cut off in time in the injection holes, so that the injection holes are blocked by the injection molding liquid and the product is adhered to the injection molding liquid, and the product molding is influenced;
in addition, during high-pressure injection molding, the pressure of injection molding liquid acts on the upper die and the lower die, so that the relative displacement of the upper die and the lower die is easy to cause the reduction of the precision of injection molding;
Therefore, we propose a new mould for motor car wallboard to solve the problem that the device can not cut off the injection liquid in time and upper mould and lower mould are easy to deviate.
Disclosure of utility model
The utility model aims to provide a mould for a motor car wallboard, which solves the problems that injection molding liquid cannot be cut off in time and an upper mould and a lower mould are easy to deviate in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the mould for the motor car wallboard comprises an upper mould and a lower mould, wherein the upper mould is matched with the lower mould up and down;
The upper die is characterized in that a liquid inlet pipe is embedded into the top of the upper die, a liquid inlet hole is formed in the center of the inner portion of the upper die, a groove is formed in the bottom of the upper die, an electric push rod is embedded into the inner wall of the groove, a stop block is fixedly connected to the other end of the electric push rod, a through hole is formed in the top end of the inner portion of the stop block, the through hole is L-shaped, and the outlet of the other end of the through hole is arranged on the outer peripheral surface of the stop block.
Preferably, the dog is the "T font form of inversion, the dog embedding sets up in the feed liquor hole of last mould inside, the horizontal part up end fixedly connected with sealing washer of dog, the top embedding of dog is provided with the gasbag.
Preferably, the bottom fixedly connected with mount pad of lower mould, the top of mount pad articulates there is the pneumatic cylinder, the other end of pneumatic cylinder articulates there is the limiting plate, the limiting plate articulates with the lower mould.
Preferably, the outer side surface of the lower die is provided with a groove, and the limiting plate is embedded in the groove.
Preferably, the outer side surface of the upper die is provided with a groove matched with the limiting plate.
Preferably, the groove on the outer side surface of the upper die is in a T shape.
Preferably, a one-way valve is arranged in the liquid inlet of the upper die.
Compared with the prior art, the utility model has the beneficial effects that:
1. This kind of mould for motor car wallboard through being provided with electric putter, the dog, sealing washer and gasbag, drives the dog through electric putter and removes, the dog is used for cuting the liquid of moulding plastics, the dog can seal the shaping chamber between mould and the lower mould, thereby avoid moulding plastics liquid adhesion product, and the liquid of moulding plastics is stable place in the feed liquor downthehole, can avoid the condition of moulding plastics liquid jam, avoid moulding plastics liquid backward flow through the check valve, under the protection of gasbag, the dog cuts the liquid of moulding plastics when, the liquid of moulding plastics of backward flow extrudees the gasbag, firstly avoid moulding plastics liquid to cause the impact to the check valve, secondly guarantee that the liquid of moulding plastics receives the extrusion and flows, avoid moulding plastics liquid to solidify, thereby prevent to mould plastics liquid jam.
2. Secondly, this kind of mould for motor car wallboard through being provided with lower mould, mount pad, pneumatic cylinder and limiting plate, drives the limiting plate through the pneumatic cylinder and draws the pitch arc, and the limiting plate closely laminates with the lateral surface of lower mould and last mould, and the limiting plate can prevent to appear the displacement between upper mould and the lower mould, guarantees the cooperation precision between upper mould and the lower mould, avoids appearing the gap and causes the condition that injection molding liquid leaked and product precision descends.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of a stopper structure of the present utility model;
FIG. 3 is a schematic view of the upper die structure of the present utility model;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1A in accordance with the present utility model;
In the figure: the device comprises an upper die 1, a liquid inlet pipe 101, an electric push rod 102, a one-way valve 103, a lower die 2, a mounting seat 201, a hydraulic cylinder 202, a limiting plate 203, a stop block 3, a sealing ring 301 and an air bag 302.
Detailed Description
Referring to fig. 1 to 2, in an embodiment of the present utility model;
example 1: the mould for the motor car wallboard comprises an upper mould 1 and a lower mould 2, wherein the upper mould 1 and the lower mould 2 are matched up and down;
The top of the upper die 1 is embedded with a liquid inlet pipe 101, the center of the inner part of the upper die 1 is provided with a liquid inlet hole, the bottom of the upper die 1 is provided with a groove, the inner wall of the groove is embedded with an electric push rod 102, the other end of the electric push rod 102 is fixedly connected with a stop block 3, the inner top end of the stop block 3 is provided with a through hole, the through hole is L-shaped, and the outlet of the other end of the through hole is arranged on the outer peripheral surface of the stop block 3;
The upper die 1 is driven by an external hydraulic unit, injection molding liquid can be introduced into the liquid inlet pipe 101, the stop block 3 is driven to move by the electric push rod 102, the stop block 3 is used for cutting off the injection molding liquid, the injection molding liquid is parallel-ejected from the outer peripheral surface of the stop block 3 when the stop block 3 descends, the injection molding liquid fills a molding cavity between the upper die 1 and the lower die 2, and then the molding cavity between the upper die 1 and the lower die 2 is sealed by the ascending of the stop block 3, so that injection molding liquid adhesion products are avoided, the injection molding liquid is stably placed in a liquid inlet hole, and the blocking of the injection molding liquid can be avoided.
Example 2: as can be seen by referring to fig. 2 to 4 of the specification, embodiment 2 is different from embodiment 1 in that:
the stop block 3 is in an inverted T shape, the stop block 3 is embedded into a liquid inlet hole of the upper die 1, the upper end face of the horizontal part of the stop block 3 is fixedly connected with a sealing ring 301, and the top of the stop block 3 is embedded with an air bag 302;
The stop block 3 comprises a horizontal part and a vertical part, the contact surface of the stop block 3 and the inner wall of the lower die 2 is provided with a plurality of bending parts, the bending parts are provided with longer liquid blocking surfaces, the electric push rod 102 can drive the stop block 3 to be clung to the lower die 2, the electric push rod has higher liquid blocking force, the generated cutting effect is better, and the time for cutting off the injection molding liquid is longer;
The bottom of the lower die 2 is fixedly connected with a mounting seat 201, the top of the mounting seat 201 is hinged with a hydraulic cylinder 202, the other end of the hydraulic cylinder 202 is hinged with a limiting plate 203, and the limiting plate 203 is hinged with the lower die 2;
The limiting plate 203 is driven by the hydraulic cylinder 202 to draw an arc line, and the limiting plate 203 is tightly attached to the outer side surfaces of the lower die 2 and the upper die 1, so that the displacement of the lower die 2 and the upper die 1 in the left-right direction is placed, and the matching precision between the upper die 1 and the lower die 2 is ensured;
the outer side surface of the lower die 2 is provided with a groove, and the limiting plate 203 is embedded in the groove;
The limiting plate 203 clamps the lower die 2 and the upper die 1, has good fixing effect, and is embedded and arranged in the lower die 2, so that horizontal displacement of the lower die 2 in the front-rear direction is avoided;
the outer side surface of the upper die 1 is provided with a groove matched with the limiting plate 203;
The other end of the limiting plate 203 is embedded into the upper die 1, the limiting plate 203 can prevent the horizontal displacement in the front-rear direction between the upper die 1 and the lower die 2, and the matching precision between the upper die 1 and the lower die 2 is ensured;
the groove on the outer side surface of the upper die 1 is in a T shape;
The upper die 1 is limited by the horizontal part of the limiting plate 203, so that the displacement in the vertical direction between the upper die 1 and the lower die 2 can be prevented, the matching precision between the upper die 1 and the lower die 2 is ensured, and the conditions of injection liquid leakage and product precision reduction caused by gaps are avoided;
A one-way valve 103 is arranged in the liquid inlet of the upper die 1;
The backflow of injection molding liquid is avoided through the one-way valve 103, under the protection of the air bag 302, when the stop block 3 cuts off the injection molding liquid, the backflow injection molding liquid extrudes the air bag 302, firstly, the injection molding liquid is prevented from impacting the one-way valve 103, secondly, the injection molding liquid is ensured to flow due to extrusion, and solidification of the injection molding liquid is avoided, so that the injection molding liquid is prevented from being blocked.
Claims (7)
1. The mould for the motor car wallboard comprises an upper mould (1) and a lower mould (2), wherein the upper mould (1) is matched with the lower mould (2) up and down;
The novel plastic injection molding machine is characterized in that a liquid inlet pipe (101) is embedded in the top of the upper die (1), a liquid inlet hole is formed in the center of the inside of the upper die (1), a groove is formed in the bottom of the upper die (1), an electric push rod (102) is embedded in the inner wall of the groove, a stop block (3) is fixedly connected to the other end of the electric push rod (102), a through hole is formed in the top end of the inside of the stop block (3), the through hole is in an L-shaped shape, and the outlet of the other end of the through hole is arranged on the outer peripheral surface of the stop block (3).
2. A motor car wallboard mold according to claim 1, wherein: the stop block (3) is in an inverted T-shaped shape, the stop block (3) is embedded into a liquid inlet of the upper die (1), the sealing ring (301) is fixedly connected to the upper end face of the horizontal part of the stop block (3), and an air bag (302) is embedded into the top of the stop block (3).
3. A motor car wallboard mold according to claim 1, wherein: the bottom fixedly connected with mount pad (201) of lower mould (2), the top of mount pad (201) articulates there is pneumatic cylinder (202), the other end of pneumatic cylinder (202) articulates there is limiting plate (203), limiting plate (203) are articulated with lower mould (2).
4. A motor car wallboard mold according to claim 3, wherein: the outer side surface of the lower die (2) is provided with a groove, and the limiting plate (203) is embedded in the groove.
5. A motor car wallboard mold according to claim 1, wherein: the outer side surface of the upper die (1) is provided with a groove matched with the limiting plate (203).
6. The mold for motor car wallboard of claim 5, wherein: the groove on the outer side surface of the upper die (1) is in a T shape.
7. The mold for motor vehicle wallboard of claim 6, wherein: a one-way valve (103) is arranged in the liquid inlet of the upper die (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322562378.8U CN220903992U (en) | 2023-09-20 | 2023-09-20 | Mould for motor car wallboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322562378.8U CN220903992U (en) | 2023-09-20 | 2023-09-20 | Mould for motor car wallboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220903992U true CN220903992U (en) | 2024-05-07 |
Family
ID=90903938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322562378.8U Active CN220903992U (en) | 2023-09-20 | 2023-09-20 | Mould for motor car wallboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220903992U (en) |
-
2023
- 2023-09-20 CN CN202322562378.8U patent/CN220903992U/en active Active
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