CN208277375U - Car backrest injection molding - Google Patents
Car backrest injection molding Download PDFInfo
- Publication number
- CN208277375U CN208277375U CN201820929661.6U CN201820929661U CN208277375U CN 208277375 U CN208277375 U CN 208277375U CN 201820929661 U CN201820929661 U CN 201820929661U CN 208277375 U CN208277375 U CN 208277375U
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- moving mold
- hole
- rack gear
- cylinder
- mold
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Abstract
The utility model belongs to injection mold field, specifically discloses a kind of car backrest injection molding；Including moving mold and fixed mold, moving mold includes upper moving mold and lower moving mold；The cylinder body of the first cylinder is fixed on lower moving mold；First piston bar is fixed on moving mold, and upper moving mold is equipped with mandril；The second cylinder is provided with above upper moving mold, second piston bar is fixed on moving mold, and second piston bar is equipped with the first rack gear, the first rack gear meshing gear, and gear is engaged with the second rack gear；Upper moving mold is provided with the first through hole and the second through-hole of connection, and first through hole is equipped with third rack gear, and telescopic rod and spring are equipped between third rack gear and the second rack gear；The strut engaged with third rack gear is equipped in second through-hole, strut slidably connects screw rod；Lower moving mold is provided with threaded hole and third through-hole, and third through-hole is connected to the rodless cavity of the first cylinder by pipeline；The problem of utility model aims to solve products to be stuck on moving mold, is unfavorable for worker's pickup.
Description
Technical field
The utility model belongs to injection mold field, specifically discloses a kind of car backrest injection molding.
Background technique
Injection mold is widely applied a kind of molding die in plastic part production, and it is complete to be also to confer to plasthetics
The tool of structure and accurate dimension, injection molding are a kind of processing methods used when producing certain complex-shaped components in batches.
Injection mold is made of moving mold and fixed mold two parts, and moving mold is mounted on the moving die plate of injection (mo(u)lding) machine, fixed mold
It is mounted on the fixed form of injection (mo(u)lding) machine.In injection moulding, moving mold and fixed mold closure constitute running gate system and chamber
Room, by the plastics after hot melt by forming required product by being cooled and shaped in running gate system injecting chamber.Dynamic model when die sinking
Tool is separated with fixed mold to take out plastic products.
In formed product, since temperature is excessively high, overall volume is relative to bigger in the state of room temperature, and product is cooling down
During, since temperature changes, the volume contraction of product, but the shrinkage degree of volume is little, and product is it is possible to meeting
It being stuck on moving mold, when moving mold disengaging fixed mold moves upwards, product may be moved upwardly together with moving mold,
It is unfavorable for worker's pickup.
Utility model content
The utility model discloses a kind of car backrest injection moldings, may be stuck on moving mold to solve product, no
The problem of conducive to worker's pickup.
To solve the above problems, the basic scheme of the utility model are as follows: car backrest injection molding, including moving mold and fixed
Mold, moving mold include upper moving mold and lower moving mold；The first cylinder, the first cylinder are equipped between upper moving mold and lower moving mold
The fixed lower moving mold of cylinder body on；The First piston bar of first cylinder is fixed on the lower surface of moving mold, under upper moving mold
Surface is fixed with mandril；The second cylinder being fixed on bracket, the second piston of the second cylinder are provided with above upper moving mold
Bar is fixed on the upper surface of moving mold, and the first rack gear straight down is fixed in second piston bar, and the first rack gear is engaged with
Gear, gear are rotatably connected on bracket by unilateral bearing, and gear is engaged with the second horizontal positioned rack gear；Upper moving mold is opened
Having axial direction is respectively the first through hole of horizontal direction and the second through-hole of vertical direction, and first through hole and the second through-hole connect
It is logical, it is equipped with horizontal positioned third rack gear in first through hole, is connected between third rack gear and the second rack gear by telescopic rod, third
Spring is equipped between rack gear and the second rack gear；Strut is provided in second through-hole, the upper end of strut is equipped with engages with third rack gear
Tooth, the two sides of strut lower end are fixed with sliding block, and the lower end of strut is equipped with screw rod, is provided with sliding slot, sliding block inside the upper end of screw rod
It is slidably connected with sliding slot；Lower moving mold be provided with third through-hole straight down and with the matched threaded hole of screw rod；Third through-hole is just
To the chamber on fixed mold, mandril is slidably connected in third through-hole, and the rodless cavity of third through-hole and the first cylinder passes through pipeline
Connection, mandril are located in third through-hole.
The basic principle of this programme: under original state, upper moving mold, lower moving mold and fixed mold are fitted closely, and are produced
Product processing after product is cooled and shaped, starts the second cylinder, and the second cylinder drives second piston bar to move upwards, second piston bar
Moving mold moves upwards in drive.
During upper moving mold moves upwards, upper moving mold drives First piston bar to move upwards with mandril, and first is living
Stopper rod drives first piston plate to move upwards；Due between first piston plate and the cylinder body of the first cylinder have frictional force, first
Piston plate drives the first cylinder block to move upwards, therefore lower moving mold also moves upwards under the drive of the first cylinder.
When second piston bar moves upwards, second piston bar band moving gear is rotated counterclockwise, and gear rotates counterclockwise drive
Second rack gear moves right, and the second rack gear drives third rack gear to move downward by telescopic rod, and telescopic rod and spring be simultaneously at this time
Stress stretches, and spring generates deformation.
Third rack gear then drives the strut of engagement to rotate, since sliding block fixed on strut slides up and down in sliding slot, and
Circumferentially upper relatively fixed between sliding block and sliding slot, the rotation of strut drives screw rod rotation；During screw rod rotates, under screw rod
Extend threaded hole gradually downward in end.
During screw rod rotates, sliding block opposite screw rod upward sliding in sliding slot is reversed that is, between strut and screwed pipe
Movement, causes spacing occur between moving mold and lower moving mold, mandril at this time with respect to third through-hole move upwards one section away from
From mandril no longer closed conduct.
The second piston bar of second cylinder starts counter motion, and second piston bar drives upper moving mold and the first rack gear downward
Movement, since gear is rotatably connected on bracket by unilateral bearing, limitation powershift gear is only capable of rotating counterclockwise, and gear stops at this time
Rotation stop is dynamic.
Gear stops operating, and the second rack gear is moved right with the stopping of third rack gear, and the second rack gear stops stretching flexible at this time
Bar and spring, spring start to restore deformation；Spring applies downward pulling force to the second rack gear, keeps the second rack gear and gear
Meshing state, while spring also pulls telescopic rod, shrinks telescopic rod.
While upper moving mold moves downward, lower moving mold moves downward together under the drive of First piston bar, until
The bottom end of screw rod is contacted with fixed mold, and since the bottom of screw rod extends downwardly out threaded hole, screw rod hinders lower moving mold to transport downwards
It is dynamic；And First piston bar Continued downward motion, First piston bar start to be pressed down against first piston plate, first piston plate stress is squeezed
Rodless cavity is pressed, the pressure in rodless cavity is caused to increase.
Pressure in rodless cavity increases, and the gas in rodless cavity stays under the action of pressure from pipeline to third through-hole,
Final gas is blown out downwards from third through-hole, and gas blows downwards product, separates product with lower moving mold, product is in gravity
Under the action of fall on fixed mold.
Second cylinder drives second piston bar to move again up, is based on identical principle, and second piston bar drives and moves
Mold and lower moving mold move upwardly together, until worker takes product away, close the second cylinder.
For compared with the existing technology, the movement using upper moving mold and lower moving mold in this programme generates air-flow, will
The product blocked is blown downwards, successively separates product with moving mold；Air-flow is during blowing product to product simultaneously
It carries out cooling again to handle, prevents the worker of the excessively high scald pickup of the temperature of product.
Further, the bottom end of mandril is equipped with the heat-insulating and sealing plate for closing third through-hole.
Heat-insulating and sealing plate closes third through-hole, prevents occurring corner angle because of third through-hole when formed product, causes product
Surface irregularity；Heat-insulating and sealing plate is by insulation product and mandril simultaneously, in the heat transfer to mandril when preventing formed product,
Mandril is caused to damage because heat is excessively high.
Further, the lower end of screw rod is equipped with cushion.
Cushion is used to buffer the shock generated when lower screw rod is contacted with fixed mold, and screw rod is avoided to hit the dynamics of fixed mold
It is excessive, cause fixed mold impaired.
Further, the upper surface of lower moving mold is lower than in the cylinder body upper surface level height of the first cylinder.
It prevents the cylinder body of the first cylinder from hindering being bonded between upper moving mold and lower moving mold, while avoiding the first cylinder
Cylinder body causes the volume of mold to increase.
Further, limited block is equipped in the sliding slot of screw rod upper end.Anti- limited slip block skids off sliding slot during sliding.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the cross-sectional view in the direction A-A in Fig. 1；
Fig. 3 is the enlarged diagram in Fig. 1 at B；
Fig. 4 is the enlarged diagram in Fig. 1 at C.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: upper moving mold 1, lower moving mold 2, fixed mold 3, the first cylinder 4, first
It is piston rod 5, mandril 6, heat-insulating and sealing plate 7, the second cylinder 8, bracket 9, second piston bar 10, the first rack gear 11, gear 12, unidirectional
Bearing 13, the second rack gear 14, third rack gear 15, telescopic rod 16, spring 17, first through hole 18, the second through-hole 19, strut 20, spiral shell
Pit 21, screw rod 22, third through-hole 23, pipeline 24, rodless cavity 25, sliding block 26, limited block 27.
Embodiment is substantially as shown in Figure 1 and Figure 2: car backrest injection molding, including moving mold and fixed mold 3, dynamic model
Tool includes upper moving mold 1 and lower moving mold 2.
The first cylinder 4 is equipped between upper moving mold 1 and lower moving mold 2, under the cylinder body of the first cylinder 4 is fixed on moving mold 2,
It is lower than the upper surface of lower moving mold 2 in the upper surface level height of first cylinder, 4 cylinder body；The First piston bar 5 of first cylinder 4 is welded
It connects in the lower surface of upper moving mold 1, the lower surface of upper moving mold 1 is welded with mandril 6 straight down, the lower surface weldering of mandril 6
It is connected to heat-insulating and sealing plate 7.
The top of upper moving mold 1 is provided with the second cylinder 8, and the cylinder body of the second cylinder 8 is welded on bracket 9, the second cylinder 8
Second piston bar 10 be welded on the upper surface of moving mold 1, the first rack gear straight down is bonded in second piston bar 10
11, the first rack gear 11 is engaged with gear 12, and gear 12 is rotatably connected on bracket 9, and one-way shaft is equipped between gear 12 and bracket 9
13 are held, gear 12 is only capable of rotating counterclockwise, and gear 12 is engaged with the second horizontal positioned rack gear 14.
It is respectively the first through hole 18 of horizontal direction and the second through-hole of vertical direction that upper moving mold 1, which is provided with axial direction,
19, first through hole 18 is connected to the second through-hole 19, and horizontal positioned third rack gear 15, third are slidably connected in first through hole 18
It is connected between rack gear 15 and the second rack gear 14 by telescopic rod 16, spring 17 is equipped between third rack gear 15 and the second rack gear 14,
One end of spring 17 is welded on the second rack gear 14, and the other end of spring 17 is welded on third rack gear 15.
Strut 20 is provided in second through-hole 19, the upper end of strut 20 is equipped with the tooth engaged with third rack gear 15, strut 20
The two sides of lower end are welded with sliding block 26, and the lower end of strut 20 is equipped with screw rod 22.
It is as shown in Figure 4: be provided with sliding slot inside the upper end of screw rod 22, the lower end of screw rod 22 is bonded with cushion, sliding block 26 with
Sliding slot is slidably connected and is equipped with the limited block 27 that limitation sliding block 26 skids off sliding slot in sliding slot.
As shown in Figure 3: lower moving mold 2 is provided with threaded hole 21 and third through-hole 23 straight down, screw rod 22 and threaded hole
21 are threadedly coupled；Chamber on 23 face fixed mold of third through-hole, mandril 6 are slidably connected in third through-hole 23, third through-hole
23 are connected to the rodless cavity 25 of the first cylinder 4 by pipeline 24, the lower surface of sealing plate and third through-hole 23 under original state
Lower surface is parallel, and mandril 6 closes the nozzle of pipeline 24.
Specific implementation process is as follows: under original state, upper moving mold 1, lower moving mold 2 change a fixed mold 3 and fit closely, into
The processing of row product after product is cooled and shaped, starts the second cylinder 8, and the second cylinder 8 drives second piston bar 10 to move upwards, the
Two piston rods 10 drive upper moving mold 1 to move upwards.
During upper moving mold 1 moves upwards, upper moving mold 1 drives First piston bar 5 to move upwards with mandril 6, the
One piston rod 5 drives first piston plate to move upwards；Due to having friction between first piston plate and the cylinder body of the first cylinder 4
Power, first piston strip are moved 4 cylinder body of the first cylinder and are moved upwards, therefore lower moving mold 2 is also upward under the drive of the first cylinder 4
Movement.
When second piston bar 10 moves upwards, second piston bar 10 is rotated counterclockwise with moving gear 12, and gear 12 is counterclockwise
Rotation drives the second rack gear 14 to move right, and the second rack gear 14 drives third rack gear 15 to move downward by telescopic rod 16, at this time
Stress stretches simultaneously for telescopic rod 16 and spring 17, and spring 17 generates deformation.
Third rack gear 15 then drives the strut 20 of engagement to rotate, since the sliding block 26 of fixation on strut 20 is upper and lower in sliding slot
Sliding, and it is circumferentially upper relatively fixed between sliding block 26 and sliding slot, and the rotation of strut 20 drives screw rod 22 to rotate；What screw rod 22 rotated
In the process, threaded hole 21 is extended in the lower end of screw rod 22 gradually downward.
During screw rod 22 rotates, sliding block 26 opposite 22 upward sliding of screw rod, i.e. strut 20 and screwed pipe in sliding slot
Between counter motion, cause spacing occur between moving mold 1 and lower moving mold 2, mandril 6 at this time with respect to third through-hole 23 to
Upper movement a distance, the no longer closed conduct 24 of mandril 6.
The second piston bar 10 of second cylinder 8 starts counter motion, and second piston bar 10 drives upper moving mold 1 and the first tooth
Item 11 moves downward, and since gear 12 is rotatably connected on bracket 9 by unilateral bearing 13, gear 12 stops operating at this time.
Gear 12 stops operating, and the second rack gear 14 is moved right with the stopping of third rack gear 15, and the second rack gear 14 stops at this time
Telescopic rod 16 and spring 17 are stretched, spring 17 starts to restore deformation；Spring 17 applies downward pulling force to the second rack gear 14, makes
Two rack gears 14 keep the meshing state with gear 12, while spring 17 also pulls telescopic rod 16, shrink telescopic rod 16.
While upper moving mold 1 moves downward, lower moving mold 2 moves downward together under the drive of First piston bar 5, directly
It is contacted to the bottom end of screw rod 22 with fixed mold 3, since the bottom of screw rod 22 extends downwardly out threaded hole 21, screw rod 22 hinders lower dynamic
Mold 2 moves downward；And 5 Continued downward motion of First piston bar, First piston bar 5 start to be pressed down against first piston plate, the
One piston plate stress squeezes rodless cavity 25, and the pressure in rodless cavity 25 is caused to increase.
Pressure in rodless cavity 25 increases, and the gas in rodless cavity 25 is stayed from pipeline 24 to third under the action of pressure
Through-hole 23, final gas are blown out downwards from third through-hole 23, and gas blows downwards product, separate product with lower moving mold 2,
Product is fallen under gravity on fixed mold 3.
Second cylinder 8 drives second piston bar 10 to move again up, is based on identical principle, and second piston bar 10 drives
Upper moving mold 1 and lower moving mold 2 move upwardly together, until worker takes product away, close the second cylinder 8.
Above-described is only the embodiments of the present invention, and common knowledge does not describe excessively herein in scheme.It should
It points out, for those skilled in the art, under the premise of not departing from the utility model structure, several changes can also be made
Shape and improvement, these also should be considered as the protection scope of the utility model, these all will not influence the effect of the utility model implementation
Fruit and patent practicability.The scope of protection required by this application should be based on the content of the claims, the tool in specification
The records such as body embodiment can be used for explaining the content of claim.
Claims (5)
1. car backrest injection molding, including moving mold and fixed mold, it is characterised in that: the moving mold include upper moving mold and
Lower moving mold；The first cylinder is equipped between upper moving mold and lower moving mold, under the cylinder body of the first cylinder is fixed on moving mold；First
The First piston bar of cylinder is fixed on the lower surface of moving mold, and the lower surface of upper moving mold is fixed with mandril；Upper moving mold
Top is provided with the second cylinder being fixed on bracket, and the second piston bar of the second cylinder is fixed on the upper surface of moving mold,
The first rack gear straight down is fixed in second piston bar, the first rack gear is engaged with gear, and gear is rotated by unilateral bearing
It is connected on bracket, gear is engaged with the second horizontal positioned rack gear；It is respectively horizontal direction that upper moving mold, which is provided with axial direction,
First through hole and vertical direction the second through-hole, first through hole is connected to the second through-hole, is equipped in first through hole horizontal positioned
Third rack gear, between third rack gear and the second rack gear by telescopic rod connect, between third rack gear and the second rack gear be equipped with bullet
Spring；Strut is provided in second through-hole, the upper end of strut is equipped with the tooth engaged with third rack gear, and the two sides of strut lower end are fixed with
Sliding block, the lower end of strut are equipped with screw rod, are provided with sliding slot inside the upper end of screw rod, sliding block is slidably connected with sliding slot；Lower moving mold is opened
Have third through-hole straight down and with the matched threaded hole of screw rod；Chamber on third through-hole face fixed mold, mandril sliding
It is connected in third through-hole, third through-hole is connected to the rodless cavity of the first cylinder by pipeline, and mandril is located in third through-hole.
2. car backrest injection molding according to claim 1, it is characterised in that: the bottom end of the mandril is equipped with for sealing
Close the heat-insulating and sealing plate of third through-hole.
3. car backrest injection molding according to claim 2, it is characterised in that: the lower end of the screw rod is equipped with buffering
Pad.
4. car backrest injection molding according to claim 3, it is characterised in that: the cylinder body upper surface of first cylinder
It is lower than the upper surface of lower moving mold in level height.
5. car backrest injection molding according to claim 4, it is characterised in that: be equipped in the sliding slot of the screw rod upper end
Limited block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820929661.6U CN208277375U (en) | 2018-06-14 | 2018-06-14 | Car backrest injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820929661.6U CN208277375U (en) | 2018-06-14 | 2018-06-14 | Car backrest injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208277375U true CN208277375U (en) | 2018-12-25 |
Family
ID=64699103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820929661.6U Expired - Fee Related CN208277375U (en) | 2018-06-14 | 2018-06-14 | Car backrest injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208277375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823674A (en) * | 2019-12-18 | 2020-02-21 | 中国人民解放军陆军军医大学第二附属医院 | Dilution system for blood sample preparation |
-
2018
- 2018-06-14 CN CN201820929661.6U patent/CN208277375U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823674A (en) * | 2019-12-18 | 2020-02-21 | 中国人民解放军陆军军医大学第二附属医院 | Dilution system for blood sample preparation |
| CN110823674B (en) * | 2019-12-18 | 2021-12-14 | 中国人民解放军陆军军医大学第二附属医院 | Dilution system for blood sample preparation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |