CN113858556A - Injection mold for automobile seat guard plate - Google Patents
Injection mold for automobile seat guard plate Download PDFInfo
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- CN113858556A CN113858556A CN202111179487.0A CN202111179487A CN113858556A CN 113858556 A CN113858556 A CN 113858556A CN 202111179487 A CN202111179487 A CN 202111179487A CN 113858556 A CN113858556 A CN 113858556A
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- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 210000002105 tongue Anatomy 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000009471 action Effects 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3041—Trim panels
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides an injection mold for a car seat protection plate, which comprises a movable mold, a fixed mold base plate and a lower mold base, wherein an inclined core pulling mechanism is connected to the fixed mold base plate; an ejector plate is arranged on the lower die base, and an inclined top is arranged on the ejector plate; the outer side wall of the movable die is circumferentially provided with a plurality of locking blocks, the fixed die is provided with a plurality of lock tongues and a first elastic piece, and the base plate of the fixed die is provided with a plurality of unlocking blocks; the unlocking block is in vertical slidable fit with the lock tongue, and when the lock tongue and the unlocking block slide to a set distance in the vertical direction, the unlocking block is used for driving the lock tongue and the locking block to unlock; when the mold is opened, the movable mold moves upwards, the fixed mold moves upwards simultaneously, so that the inclined core pulling mechanism is separated from a product, and when the fixed mold moves upwards to a set distance, the lock tongue and the locking block are unlocked. The injection mold for the automobile seat guard plate disclosed by the invention can realize quick, effective and stable demolding of the inclined taper hole and the taper hole inner back-off structure on the product at the same time.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold for a protective plate of an automobile seat.
Background
An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a processing method used for mass production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification.
At present, in the design of injection mold, will often meet the product that is equipped with many knot positions, barb structure, the usual way is that there is the bell mouth that the slope set up in car seat backplate structure or pendulum rod or utilize the characteristic of material to combine product structure to allow certain elastic deformation space to force the drawing of patterns, but these schemes are not suitable to some products, for example, there is the bell mouth of slope setting in the bell mouth still, and still have back-off mechanism in the bell mouth, the simple drawing of patterns that can only realize the bell mouth that relies on the bell mouth mechanism under this situation, back-off mechanism can not realize synchronous drawing of patterns, adopt conventional bell mouth mechanism to realize the quick effective drawing of patterns of bell mouth and back-off structure yet promptly, need develop the new mould structure that makes things convenient for two kinds of structures quick, effective drawing of patterns.
Disclosure of Invention
The problem that this invention was solved is, in order to overcome the defect among the prior art, provide one kind can realize simultaneously that the product goes up the quick effective and stable car seat backplate injection mold of drawing of patterns of slope taper hole and taper hole internal undercut structure.
In order to solve the problems, the invention provides an injection mold for a protective plate of an automobile seat, which comprises a movable mold, a fixed mold base plate and a lower mold base which are sequentially arranged from top to bottom, wherein a mold cavity is arranged between the movable mold and the fixed mold, the fixed mold base plate is connected with an inclined core-pulling mechanism, and the upper end of the inclined core-pulling mechanism penetrates through the fixed mold in a sliding manner and extends to the mold cavity; an ejector plate capable of sliding vertically is arranged on the lower die base, an inclined top is arranged on the ejector plate, and the upper end of the inclined top is slidably arranged on the fixed die in a penetrating mode; the outer side wall of the movable die is circumferentially provided with a plurality of locking blocks, the fixed die is provided with a plurality of lock tongues which are in one-to-one correspondence with the locking blocks and a first elastic piece for driving the lock tongues to always have a locking trend matched with the locking blocks, and the fixed die base plate is provided with a plurality of unlocking blocks which are in one-to-one correspondence with the lock tongues; the unlocking block is in vertical slidable fit with the lock tongue, and when the lock tongue and the unlocking block slide to a set distance in the vertical direction, the unlocking block is used for driving the lock tongue and the locking block to unlock; when the die is opened, the movable die moves upwards, the fixed die is driven to move upwards simultaneously under the action of the locking blocks and the corresponding lock tongues, so that the inclined core pulling mechanism is separated from a product, when the fixed die moves upwards to a set distance, the lock tongues and the locking blocks are unlocked, the movable die continues to move upwards, and the fixed die is fixed and does not move.
Compared with the prior art, the injection mold has the following advantages:
in the injection mold structure for the automobile seat guard plate, the movable mold, the fixed mold and the fixed mold base plate are provided with corresponding locking mechanisms, namely, when the mold opening is in an initial state, the movable mold and the fixed mold are locked through corresponding lock tongues and locking blocks, the movable mold moves upwards to drive the fixed mold to move upwards synchronously, and the inclined core-pulling mechanism is separated from a product back-off structure; the movable mould continues the die sinking, spring bolt and latch segment unblock under the effect of unblock piece, and the cover half no longer shifts up simultaneously along with the movable mould afterwards, and after the movable mould was opened completely, the thimble board shifts up and realizes the drawing of patterns of product slope taper hole through pushing up to one side to the beginning, the stable drawing of patterns of taper hole, back-off structure on the product have been realized, work efficiency is improved.
Further, be equipped with on the die holder along vertical slidable thimble board, be connected with the roof pull rod on the thimble board, the roof pull rod pass the cover half backing plate with the cover half is connected, be equipped with many thimbles on the thimble board, and many the upper end of thimble slides in proper order and passes cover half backing plate, cover half until with cover half up end parallel and level. In the structure, the structure that the ejector pin plate and the fixed die synchronously move upwards is designed, so that the ejector pin can not damage the product when the product is finally ejected out.
As the improvement, be equipped with on the lateral wall of cover half along circumference and be equipped with the storage tank that a plurality of levels extend, spring bolt one end sliding fit is in the storage tank, the other end cooperatees with the latch segment, just first elastic component is connected between storage tank bottom surface and the spring bolt. In the above-mentioned improved structure, guarantee the stable flexible of spring bolt through setting up the storage tank to protection that first elastic component can be better.
And the improved structure is characterized in that a countersunk through hole is formed in the spring bolt, a limit screw penetrates through the countersunk through hole in a sliding manner, and the limit screw is connected to the bottom of the accommodating groove. In the above-mentioned improved structure, stop screw both can guarantee the flexible stability of operation of spring bolt, can effectively prevent again that the spring bolt from deviating from the container groove.
In another improvement, a positioning groove is formed in one end, close to the lock tongue, of the locking block, and one end, far away from the accommodating groove, of the lock tongue is matched in the positioning groove; the latch segment is nearly one side of spring bolt still is equipped with along vertical extension's location spout, unblock piece one end is connected on the cover half backing plate, the other end with location spout sliding fit, just it is nearly to unblock piece spring bolt a side end with nearly spring bolt a side end parallel and level mutually of latch segment.
In another improvement, a limit groove is arranged on one side of the unlocking block close to the lock tongue, and one end of the lock tongue far away from the accommodating groove is in sliding fit with the limit groove; a first guide inclined plane is arranged at the upper end of the limiting groove, and a second guide inclined plane matched with the first guide inclined plane is arranged at one end, away from the accommodating groove, of the lock tongue; when the lock tongue is matched in the positioning groove, one end of the lock tongue close to the positioning groove is simultaneously matched in the limiting groove; when the fixed die drives the lock tongue to move upwards, under the action of the second guide inclined surface and the first guide inclined surface, the lock tongue retracts towards the accommodating groove until the lock tongue is separated from the positioning groove.
In a further improvement, a plurality of second elastic pieces are arranged between the fixed die and the fixed die base plate and used for enabling the fixed die to have the tendency of moving towards the movable die all the time. In the improved structure, the second elastic piece is used for enabling the fixed die to have the trend of moving towards the movable die all the time, so that the fixed die is guaranteed not to directly fall until colliding with the fixed die base plate when the die is opened for the second time.
And the fixed die is improved, a plurality of limiting pull rods are arranged on the outer side wall of the fixed die base plate, drag hooks are arranged at the upper ends of the limiting pull rods, a plurality of limiting grooves are formed in the outer side wall of the fixed die, and the drag hooks are matched with the limiting grooves along the vertical slidable way. After the arrangement, after the secondary die opening, under the action of the elastic force of the second elastic piece, the fixed die moves upwards until the lower end face of the limiting groove is matched with the pull hook, the fixed die does not move upwards any more and tends to a stable position.
Drawings
FIG. 1 is a schematic structural diagram of an injection mold for an automobile seat trim according to the present invention.
Fig. 2 is an enlarged structural view at X in fig. 1.
FIG. 3 is a partial cross-sectional view of an injection mold for an automobile seat trim of the present invention. (locking mechanism)
FIG. 4 is a schematic structural diagram of the injection mold for a vehicle seat fender of the present invention with the movable mold removed.
Fig. 5 is an enlarged view of Y in fig. 4.
FIG. 6 is a schematic structural diagram of the injection mold for the automobile seat guard plate of the present invention with the movable mold and the fixed mold removed.
Fig. 7 is a connection structure diagram of the locking tongue, the locking block and the unlocking block in the invention. (locked state)
Description of reference numerals:
1-movable die, 2-fixed die, 2.1-containing groove, 2.2-limiting groove, 3-fixed die backing plate, 4-lower die holder, 5-inclined core-pulling mechanism, 6-locking block, 6.1-positioning groove, 6.2-positioning sliding groove, 7-locking tongue, 7.1-second guiding inclined plane, 8-first elastic part, 9-unlocking block, 9.1-limiting groove, 9.2-first guiding inclined plane, 10-thimble plate, 11-roof pull rod, 12-thimble, 13-limiting screw, 14-second elastic part, 15-limiting pull rod and 15.1-pull hook.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that the terms "upper end", "lower end", "inner wall", "outer side wall", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In addition, in the description of the present invention, the terms "first" and "second" are used for convenience of description and distinction, and have no specific meaning.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-4, the invention provides an injection mold for an automobile seat guard plate, which comprises a movable mold 1, a fixed mold 2, a fixed mold backing plate 3 and a lower mold base 4 which are sequentially arranged from top to bottom, wherein a mold cavity for molding the seat guard plate is arranged between the movable mold 1 and the fixed mold 2, in addition, an inclined core-pulling mechanism 5 is connected to the fixed mold backing plate 3, the upper end of the inclined core-pulling mechanism 5 slides to penetrate through the fixed mold 2 and extend to the mold cavity, and the specific inclined core-pulling mechanism 5 is mainly used for driving the product back-off structure to be quickly and effectively separated in the mold opening process of the mold, so that the integrity of the product after being ejected is ensured. The inclined core-pulling mechanism 5 in this structure is a conventional structure in the prior art, and is not described in detail herein.
In this embodiment, in order to make the separation that the die sinking in-process product and oblique mechanism of loosing core 5 can be better, be equipped with a plurality of latch segments 6 along circumference at movable mould 1 lateral wall, and be equipped with a plurality ofly on cover half 2 with latch segment 6 one-to-one the spring bolt 7 and be used for ordering about the spring bolt 7 have all the time with the first elastic component 8 of latch segment 6 cooperation locking trend, it is concrete, when not having external drive, spring bolt 7 and latch segment 6 remain the cooperation locking state all the time under the effect of first elastic component 8, movable mould 1 keeps the relation of connection with cover half 2 under this condition, move up in movable mould 1 promptly and can drive cover half 2 and shift up in step. Further, in order to realize the die opening and closing control of the movable die 1 and the fixed die 2, a plurality of unlocking blocks 9 which correspond to the lock tongues 7 one by one are correspondingly arranged on the fixed die base plate 3; the unlocking block 9 and the bolt 7 are in vertical slidable fit, and when the bolt 7 and the unlocking block 9 slide to a set distance in the vertical direction, the unlocking block 9 is used for driving the bolt 7 and the locking block 6 to unlock; therefore, when the mold is opened at one time, the movable mold 1 moves up under the action of the pulling force of the driving mechanism of the injection molding machine, the movable mold 1 drives the fixed mold 2 to move up simultaneously in the initial state due to the locking action of the spring bolt 7 and the locking block 6, the inclined core-pulling mechanism 5 is separated from the product in the upward moving process, the product is not separated from the fixed mold 2 in the process, only the product reversing structure is separated from the inclined core-pulling mechanism 5, the product cannot be damaged, and the product reversing separation is quicker and more effective. When the fixed die 2 moves up to a set distance, under the driving action of the unlocking block 9, the lock tongue 7 and the locking block 6 are separated and unlocked, at this time, the movable die continues to move up (secondary die sinking), and due to the loss of the locking action of the locking block 6, the fixed die 2 is fixed and does not move up together with the movable die 1 until the movable die 1 moves up to a complete die sinking state. After the mould is completely opened, the ejector plate 10 starts to move upwards further to eject the product, and in the process, the inclined taper hole on the product realizes demoulding under the action of the inclined ejector.
Further, in order to ensure better separation and demolding of the product and the fixed mold 2, an installation cavity 4.1 is arranged on the lower mold base 4, an ejector plate 10 capable of ascending and descending in the vertical direction is arranged in the installation cavity 4.1, the upper end of the ejector plate 10 is connected with a plurality of ejector pull rods 11, the upper end of each ejector pull rod 11 penetrates through the fixed mold base plate 3 and then is connected with the fixed mold 2, and as shown in fig. 6, after the installation, when the fixed mold 2 moves upwards along with the movable mold 1, the ejector plate 10 synchronously moves upwards along with the fixed mold 1 due to the action of the ejector pull rods 11; more specifically, in the structure, a plurality of ejector pins 12 are arranged on the ejector plate 10, and the upper ends of the ejector pins 12 sequentially slide through the fixed die base plate 3 and the fixed die 2 until the upper ends of the ejector pins are flush with the upper end surface of the fixed die 2. When a product is injection-molded, the lower end face of the product is attached to the upper end face of the fixed mold 2 and the upper end face of the ejector pin 12, and as in the initial stage of mold opening, when the movable mold 1 moves upwards, the fixed mold 2 moves upwards synchronously, and meanwhile, the ejector pin plate 10 also moves upwards synchronously, that is, the ejector pin 12 on the ejector pin plate 10 also continues to be attached to the lower end face of the product, so that after the secondary mold opening, the ejector pin 12 starts to eject from the position attached to the lower end face of the product when the product needs to be ejected, and the lower surface of the product cannot be damaged. In the structure, if a mechanism for enabling the ejector pin plate 10 to synchronously move upwards is not arranged, after the mold is opened for the first time, the upper end of each ejector pin 12 is separated from the product, so that after the mold is opened for the second time, when the ejector pins 12 completely eject the product, the ejector pins 12 move upwards quickly to abut against the lower end face of the product, the outer surface of the product is easily damaged, the appearance of the product is influenced, even the product is unqualified, and the rejection rate is high.
In the above-mentioned locking mechanism, more specifically, the outer side wall of the fixed mold 2 is provided with a plurality of horizontally extending accommodating grooves 2.1 along the circumferential direction, one end of each lock tongue 7 is slidably fitted in the accommodating groove 2.1, the other end of each lock tongue is fitted with the locking block 6, and the first elastic member 8 is connected between the bottom surface of the accommodating groove 2.1 and the lock tongue 7, as shown in fig. 3. The first elastic member 8 in this structure is preferably a cylindrical spring. And set up four groups of locking mechanisms in whole mould structure, the symmetrical setting is on two sides of mould to each side sets up two, promptly, four groups of locking mechanisms are the rectangular shape position and distribute, guarantee stability.
In order to further ensure the stability of the bolt 7 in the accommodating groove 2.1, a countersunk through hole is formed in the bolt 7, a limit screw 13 is slidably inserted into the countersunk through hole, and a bolt head of the limit screw 13 is connected to the bottom of the accommodating groove 2.1, as shown in fig. 7. After setting up like this, both can guarantee the stability of the flexible operation of spring bolt 7, can effectively prevent again that spring bolt 7 from deviating from in the accommodation groove 2.1. In addition, a positioning groove 6.1 is formed in one end, close to the lock tongue 7, of the locking block 6, and one end, far away from the accommodating groove 2.1, of the lock tongue 7 is locked in the positioning groove 6.1 in a matched mode; one side that the nearly spring bolt 7 of latch segment 6 still is equipped with along vertical extension's location spout 6.2, and 9 lower extremes of unblock piece are connected on cover half backing plate 3, upper end and location spout 6.2 sliding fit, and the nearly spring bolt 7 side end face of unblock piece 9 and the nearly spring bolt 7 side end face looks parallel and level of latch segment 6 as shown in figure 7.
Furthermore, one side of the unlocking block 9, which is close to the bolt 7, is provided with a limiting groove 9.1, and one end of the bolt 7, which is far away from the accommodating groove 2.1, is in sliding fit in the limiting groove 9.1; a first guide inclined plane 9.2 is arranged at the upper end of the limiting groove 9.1, and a second guide inclined plane 7.1 matched with the first guide inclined plane 9.2 is arranged at one end, away from the accommodating groove 2.1, of the lock tongue 7; when the bolt 7 is matched in the positioning groove 6.1, one end of the bolt 7 close to the positioning groove 6.1 is matched in the limiting groove 9.1 at the same time, as shown in fig. 3; when the mold is opened for one time, the fixed mold 2 drives the bolt 7 to move upwards, the bolt 7 slowly retracts towards the accommodating groove 2.1 under the driving action of the second guide inclined surface 7.1 and the first guide inclined surface 9.2 in the moving process, until the fixed mold 2 moves upwards to a set distance, the bolt 7 is completely separated from the positioning groove 6.1, the movable mold 1 continues to move upwards after the locking block 6 loses the locking action of the bolt 7, and the fixed mold 2 is fixed and does not move any more and does not move synchronously along with the movable mold 1.
In addition, after the mold opening is carried out for the first time, one end of the distance is separated between the fixed mold 2 and the fixed mold base plate 3, after the mold opening is carried out for the second time, the fixed mold 2 does not move upwards any more, and no connecting mechanism is arranged at the upper end of the fixed mold 2, at the moment, if no supporting structure is arranged at the lower end of the fixed mold 2, the fixed mold 2 automatically falls to the position contacted with the fixed mold base plate 3, and therefore the fixed mold 2 or the fixed mold base plate 3 is inevitably damaged by collision. In order to solve this problem, a plurality of second elastic members 14 are provided between the fixed mold 2 and the fixed mold backing plate 3 in the present embodiment for making the fixed mold 2 always have a tendency to move toward the movable mold 1, thereby ensuring that the fixed mold 2 does not directly fall until it collides with the fixed mold backing plate 3 at the time of secondary mold opening. However, in the above structure, due to the addition of the second elastic member 14, the fixed die 2 can be driven to move upwards, if the limit of the upward moving distance is not performed on the fixed die, the stability between the fixed die 2 and the fixed die base plate 3 can be deteriorated, and the accurate die assembly of the die can be influenced when the die is assembled next time, so that a plurality of limiting pull rods 15 are arranged on the outer side wall of the fixed die base plate 3 in the embodiment, a drag hook 15.1 is arranged on one side, close to the fixed die, of the upper end of each limiting pull rod 15, a plurality of limiting grooves 2.2 are correspondingly arranged on the outer side wall of the fixed die 2, and the drag hook 15.1 is matched in the limiting grooves 2.2 along the vertical slidable direction. After the arrangement, after the secondary die opening, under the elastic force of the second elastic piece 14, the fixed die 2 moves upwards until the lower end surface of the limiting groove 2.2 is matched with the draw hook 15.1, and the fixed die 2 does not move upwards any more and tends to a stable position.
The working principle is as follows:
the mold opening is divided into three stages:
in the first stage, the movable die 1 moves upwards under the tension of the injection molding machine, the fixed die 2 synchronously moves upwards along with the movable die 1 under the action of the lock tongue 7 and the locking block 6, and the fixed die 2 is connected with the ejector plate 10 through the ejector pull rod 11, the ejector plate 10 synchronously moves upwards along with the movable die 1 and the fixed die 2 in the stage, in the specific implementation, the three plates move upwards together for 20mm, and the inclined core-pulling mechanism 5 completely exits the product reverse buckle; at the stage, the fixed die 2 moves upwards to a set distance until the unlocking block 9 drives the lock tongue 7 and the locking block 6 to unlock;
in the second stage, the movable die 1 continuously moves upwards to open the die, and the fixed die 2 loses the drive of the locking block 6 and keeps fixed;
and in the third stage, the movable die 1 moves upwards and is opened to a complete die opening state, the ejector plate 10 continues to eject 176mm under the action of the oil cylinder, and the product is ensured to be completely separated from the fixed die 2.
Similarly, the mold closing process is also divided into two stages:
in the first stage, the ejector plate 10 retracts 176mm under the action of the oil cylinder;
and in the second stage, the movable die 1 starts to retreat to be in contact with the fixed die 2, and the fixed die 2 and the ejector plate 10 are driven to retreat by 20mm at the same time until the injection molding and die assembly states are achieved.
Further to note are: in the structural description, the movable die 1 and the fixed die 2 are not the only confirmed corresponding relation and are not the limitation of the protection range; namely, the fixed mold 2 in the present application can also be designed as a moving part according to actual production requirements, so that the fixed mold 2 becomes the moving mold 1 correspondingly, and correspondingly, the moving mold 1 becomes the fixed mold 2, and the working principle is consistent, and the fixed mold is not unfolded specifically.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (8)
1. The utility model provides a car seat backplate injection mold, includes movable mould (1), cover half (2), cover half backing plate (3) and die holder (4) that top-down set gradually, be equipped with the die cavity between movable mould (1) and cover half (2), its characterized in that: an inclined core-pulling mechanism (5) is connected to the fixed die base plate (3), and the upper end of the inclined core-pulling mechanism (5) penetrates through the fixed die (2) in a sliding manner and extends to the die cavity; an ejector plate (10) capable of sliding vertically is arranged on the lower die holder (4), an inclined top is arranged on the ejector plate (10), and the upper end of the inclined top is slidably arranged on the fixed die (2); a plurality of locking blocks (6) are arranged on the outer side wall of the movable die (1) along the circumferential direction, a plurality of locking tongues (7) which are in one-to-one correspondence with the locking blocks (6) and a first elastic piece (8) used for driving the locking tongues (7) to have a locking trend matched with the locking blocks (6) all the time are arranged on the fixed die (2), and a plurality of unlocking blocks (9) which are in one-to-one correspondence with the locking tongues (7) are arranged on the fixed die backing plate (3); the unlocking block (9) is in slidable fit with the lock tongue (7) along the vertical direction, and when the lock tongue (7) and the unlocking block (9) slide to a set distance along the vertical direction, the unlocking block (9) is used for driving the lock tongue (7) and the locking block (6) to unlock; when the mold is opened, the movable mold (1) moves upwards, the fixed mold (2) is driven to move upwards simultaneously under the action of the locking block (6) and the corresponding lock tongue (7), so that the inclined core pulling mechanism (5) is separated from the product in a back-off mode, when the fixed mold (2) moves upwards to a set distance, the lock tongue (7) and the locking block (6) are unlocked, the movable mold (1) continues to move upwards, and the fixed mold (2) is fixed and fixed.
2. The injection mold for a seat trim of an automobile according to claim 1, wherein: be connected with roof pull rod (11) on thimble board (10), roof pull rod (11) pass cover half backing plate (3) with cover half (2) are connected, still be equipped with many thimbles (12) on thimble board (10), and many the upper end of thimble (12) slides in proper order and passes cover half backing plate (3), cover half (2) until with cover half (2) up end parallel and level.
3. The injection mold for a seat trim of an automobile according to claim 1, wherein: be equipped with storage tank (2.1) that a plurality of levels extend along circumference on the lateral wall of cover half (2), spring bolt (7) one end sliding fit is in storage tank (2.1), the other end cooperatees with latch segment (6), just first elastic component (8) are connected between storage tank (2.1) bottom surface and spring bolt (7).
4. The injection mold for a seat trim of an automobile according to claim 3, wherein: be equipped with the countersunk head through-hole on spring bolt (7), set screw (13) is worn to be equipped with in the countersunk head through-hole is interior, just stop screw (13) are connected in storage tank (2.1) bottom.
5. The injection mold for a seat trim of an automobile according to claim 3, wherein: a positioning groove (6.1) is formed in one end, close to the lock tongue (7), of the locking block (6), and one end, far away from the accommodating groove (2.1), of the lock tongue (7) is matched in the positioning groove (6.1); the latch segment (6) are nearly one side of spring bolt (7) still is equipped with along vertical extension's location spout (6.2), unlock piece (9) one end is connected on cover half backing plate (3), the other end with location spout (6.2) sliding fit, just unlock piece (9) are nearly spring bolt (7) a side end face with the nearly spring bolt (7) a side end face looks parallel and level of latch segment (6).
6. The injection mold for a seat trim of an automobile according to claim 5, wherein: a limiting groove (9.1) is formed in one side, close to the lock tongue (7), of the unlocking block (9), and one end, far away from the accommodating groove (2.1), of the lock tongue (7) is in sliding fit with the limiting groove (9.1); a first guide inclined plane (9.2) is arranged at the upper end of the limiting groove (9.1), and a second guide inclined plane (7.1) matched with the first guide inclined plane (9.2) is arranged at one end, away from the accommodating groove (2.1), of the lock tongue (7); when the locking bolt (7) is matched in the positioning groove (6.1), one end of the locking bolt (7) close to the positioning groove (6.1) is simultaneously matched in the limiting groove (9.1); when the fixed die (2) drives the bolt (7) to move upwards, the bolt (7) retracts towards the accommodating groove (2.1) under the action of the second guide inclined surface (7.1) and the first guide inclined surface (9.2) until the bolt (7) is separated from the positioning groove (6.1).
7. The injection mold for a seat trim of an automobile according to claim 1, wherein: a plurality of second elastic pieces (14) are arranged between the fixed die (2) and the fixed die base plate (3) and used for enabling the fixed die (2) to have a tendency of moving towards the moving die (1) all the time.
8. The injection mold for a seat trim of an automobile according to claim 4, wherein: be equipped with a plurality of spacing pull rod (15) on the lateral wall of cover half backing plate (3), the upper end of spacing pull rod (15) is equipped with drag hook (15.1), be equipped with a plurality of spacing grooves (2.2) on the lateral wall of cover half (2), drag hook (15.1) are in along the cooperation of vertical slidable in spacing groove (2.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111179487.0A CN113858556A (en) | 2021-10-09 | 2021-10-09 | Injection mold for automobile seat guard plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111179487.0A CN113858556A (en) | 2021-10-09 | 2021-10-09 | Injection mold for automobile seat guard plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113858556A true CN113858556A (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111179487.0A Pending CN113858556A (en) | 2021-10-09 | 2021-10-09 | Injection mold for automobile seat guard plate |
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| Country | Link |
|---|---|
| CN (1) | CN113858556A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701126A (en) * | 2022-03-23 | 2022-07-05 | 苏州弘特精密橡塑有限公司 | Inclined hole wire passing die |
| CN114714581A (en) * | 2022-04-29 | 2022-07-08 | 宁波立驰塑胶科技有限公司 | Secondary inner core-pulling mold structure with locking mechanism |
| CN114986754A (en) * | 2022-04-29 | 2022-09-02 | 台州市三普模具股份有限公司 | Chair back board lining board die |
| CN115352002A (en) * | 2022-10-19 | 2022-11-18 | 宁海县第一注塑模具有限公司 | Automobile seat framework forming die |
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| CN210759035U (en) * | 2019-09-11 | 2020-06-16 | 浙江坤泰模具股份有限公司 | Locking mechanism for core-pulling inclined sliding block in injection mold |
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| JPS55114543A (en) * | 1979-02-28 | 1980-09-03 | Hitachi Lighting Ltd | Ejecting structure for metal mold used in injection molding |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701126A (en) * | 2022-03-23 | 2022-07-05 | 苏州弘特精密橡塑有限公司 | Inclined hole wire passing die |
| CN114701126B (en) * | 2022-03-23 | 2024-04-12 | 苏州弘特精密橡塑有限公司 | Inclined hole wire passing die |
| CN114714581A (en) * | 2022-04-29 | 2022-07-08 | 宁波立驰塑胶科技有限公司 | Secondary inner core-pulling mold structure with locking mechanism |
| CN114986754A (en) * | 2022-04-29 | 2022-09-02 | 台州市三普模具股份有限公司 | Chair back board lining board die |
| CN114714581B (en) * | 2022-04-29 | 2022-12-06 | 宁波立驰塑胶科技有限公司 | Secondary inner core-pulling mold structure with locking mechanism |
| CN114986754B (en) * | 2022-04-29 | 2023-06-16 | 台州市三普模具股份有限公司 | Chair back plate lining plate mould |
| CN115352002A (en) * | 2022-10-19 | 2022-11-18 | 宁海县第一注塑模具有限公司 | Automobile seat framework forming die |
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Application publication date: 20211231 |