CN114872277A - Injection mold for outer layer of blank piece and preparation method thereof - Google Patents
Injection mold for outer layer of blank piece and preparation method thereof Download PDFInfo
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- CN114872277A CN114872277A CN202210326926.4A CN202210326926A CN114872277A CN 114872277 A CN114872277 A CN 114872277A CN 202210326926 A CN202210326926 A CN 202210326926A CN 114872277 A CN114872277 A CN 114872277A
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- 238000002347 injection Methods 0.000 title claims abstract description 21
- 239000007924 injection Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000001746 injection moulding Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 239000002002 slurry Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007493 shaping process Methods 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
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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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
- B29C45/1759—Removing sprues from sprue-channels
-
- 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
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- 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
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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 belongs to the field of injection mold preparation, and particularly relates to an injection mold for an outer layer of a blank piece and a preparation method thereof. The injection mold comprises a male mold and a female mold which are matched with each other, wherein the male mold comprises a main body plate, and an upper substrate and a lower substrate are respectively fixed at the upper part and the lower part of the front side of the main body plate; the upper part of the front side of the lower substrate is provided with a first groove which is matched with the shape of the outer layer of the blank to be injection-molded; the front end of the upper substrate is provided with a convex block, the convex block is provided with a through hole, and the upper part of the through hole is movably connected with first lifting blocks which are vertically distributed; a third hydraulic cylinder is arranged on the rear side of the lower part of the main body plate; the front end of the third hydraulic cylinder is fixed with a second horizontal rod, and the main body plate and the lower base plate are provided with first through holes. The mold and the method realize automatic injection molding of the outer layer of the blank, have high success rate, save labor and reduce cost.
Description
Technical Field
The invention belongs to the field of injection mold preparation, and particularly relates to an injection mold for an outer layer of a blank piece and a preparation method thereof.
Background
For many injection molding parts, after the blank base body of the injection molding part is finished, a layer needs to be added on the outer layer of the blank base body, if the hammer handle is frequently added on the outer layer of the plastic handle of the blank base body, the outer layer can be made of other materials to ensure the product quality, and patterns can be added to provide attractiveness and facilitate holding. At present, the method
The addition of the outer layer lacks special equipment, the operation is troublesome, and the success rate is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the injection mold for the outer layer of the blank piece and the preparation method thereof, which realize the automatic injection molding of the outer layer of the blank piece, have high success rate, save labor and reduce cost.
In one aspect, the present invention provides an injection mold for an outer layer of a blank member: the male die comprises a main body plate, and an upper substrate and a lower substrate are respectively fixed on the upper part and the lower part of the front side of the main body plate;
the upper part of the front side of the lower substrate is provided with a first groove which is matched with the shape of the outer layer of the blank to be injection-molded;
the rear side of the main body plate is connected with a second hydraulic cylinder, and a piston rod of the second hydraulic cylinder penetrates through the main body plate and drives the upper base plate to move back and forth in the horizontal direction;
the front end of the upper substrate is provided with a convex block, the convex block is provided with a through hole, and the upper part of the through hole is movably connected with first lifting blocks which are vertically distributed; a lifting rod is fixed at the bottom of the first lifting block, the lifting rod is inserted into the through hole, and when the lifting rod descends to the bottommost part, the bottom of the lifting rod is positioned in the first groove; the upper part of the first lifting block is connected with a first hydraulic cylinder;
the front side of the lower substrate is provided with a second groove which is communicated with the first groove; a third hydraulic cylinder is arranged on the rear side of the lower part of the main body plate; the front end of the third hydraulic cylinder is fixed with a second horizontal rod, the main body plate and the lower base plate are provided with first through holes, when the second horizontal rod is in a forward extending state, the second horizontal rod penetrates through the first through holes, the front end of the second horizontal rod is located in the second groove, the preferred second groove is arc-shaped, the number of the second horizontal rods is three, and the number of the first through holes is three.
The second horizontal rod plugs the first through hole when the blank is molded, the third hydraulic cylinder drives the second horizontal rod to move back and forth, after the outer layer of the blank is molded, the blank is taken down, the third hydraulic cylinder drives the second horizontal rod to move forward, residual slurry in the second groove is ejected out, and the blockage caused by the next grouting operation is avoided.
The scheme is further improved, and a second lifting block is movably connected to the lower part of the front side of the lower base plate;
a guide rod is fixed at the bottom of one side of the female die, which is close to the male die, and the guide rod is obliquely arranged downwards; the second lifting block is provided with a blind hole which is obliquely arranged downwards, when the female die is attached to the male die, the guide rod is fixed, and when the second lifting block moves forwards, the second lifting block drives the blind hole to move upwards, and the guide rod is gradually inserted into the blind hole. By adopting the technical scheme, the second lifting block is automatically moved up and down, the operation is more convenient and efficient, the clamping groove can be formed in the lower substrate, the second lifting block is correspondingly provided with the clamping blocks matched with the clamping groove, and the second lifting block is stably moved up and down.
The scheme is further improved, wherein a fourth groove matched with the second lifting block is arranged on the upper side of one surface, opposite to the male die, of the female die, and a fifth groove and a sixth groove matched with the shape of the outer layer to be injection-molded on the other side of the blank are arranged in the middle of the other surface of the blank; the fifth groove is communicated with the sixth groove and the grouting hole on the female die, and when the female die is attached to the male die, the fifth groove is attached to the edge of the second groove, and the sixth groove is attached to the edge of the first groove; the lower part of the female die is provided with a seventh groove matched with the second lifting block.
According to the scheme, the female die is further improved, the female die is provided with a first circulating water through hole and a second circulating water through hole, the first circulating water through hole and the second circulating water through hole are horizontally distributed, the second circulating water through hole is communicated with the first circulating water through hole, the first circulating water through hole penetrates through the side wall of the female die and then is communicated with the outside, and one end of the second circulating water through hole is close to the sixth groove. By adopting the technical scheme, the sufficient cooling of the die is ensured, and the second circulating water through hole is communicated with the first circulating water through hole, so that the cost is reduced.
According to the scheme, the lower base plate is further improved, third circulating water through holes are horizontally distributed on the lower base plate, fourth circulating water through holes are longitudinally distributed on the lower base plate, the fourth circulating water through holes are communicated with the third circulating water through holes, the third circulating water through holes penetrate through the side wall of the lower base plate and then are communicated with the outside, and one end of each fourth circulating water through hole is close to the first groove.
This scheme is further improved, and four corners of infrabasal plate have the seventh recess respectively, and the third pneumatic cylinder front end still is fixed with first horizon bar, and first horizon bar can be along seventh recess back-and-forth movement. Because the second horizontal pole is very thin, and need will remain the shaping thick liquids ejecting, adopt this technical scheme, guarantee the stationarity of second horizontal pole back-and-forth movement.
The scheme is further improved, and a spring ring is wound outside the first horizontal rod. By adopting the technical scheme, the buffer function is realized when the second horizontal rod moves.
This scheme is further improved, and first recess has two, and the lifter has two, and two lifters correspond with first recess respectively and place. By adopting the technical scheme, the working efficiency can be improved, and the outer layer injection molding processing of two blank pieces can be completed at one time.
On the other hand, the invention provides a preparation method of an injection mold for an outer layer of a blank piece, which comprises the following steps:
(1) firstly, a first hydraulic cylinder drives a first lifting block to further drive a lifting rod to move downwards, a blank piece is inserted onto the lifting rod through a middle hole of the blank piece, and a second hydraulic cylinder drives an upper base plate to further drive the blank piece to move backwards into a first groove;
(2) the main driving device drives the male die to move towards the female die, at the moment, the guide rod of the female die is in contact with the blind hole in the second lifting block, and due to the fact that the guide rod is arranged obliquely downwards, the second lifting block gradually moves upwards along with the approach of the male die and the female die, and finally the upper portion of the second lifting block is attached to the bottom of the blank;
(3) injecting a proper amount of slurry into the grouting hole through the second groove, enabling the slurry to enter the first groove and the sixth groove through the fifth groove, opening circulating water, cooling the whole mold, filling the slurry into gaps among the blank and the first groove and the sixth groove, and performing injection molding on the outer part of the blank according to the shapes of the first groove and the sixth groove;
(4) the main hydraulic cylinder drives the male die to be far away from the female die, and the second lifting block moves downwards along with the male die to be separated from the bottom of the blank piece of the outer layer after injection molding;
(5) the second hydraulic cylinder drives the upper base plate, and further drives the blank piece of the outer layer after injection molding to move forwards and move away from the first groove; the first hydraulic cylinder drives the first lifting block to further drive the lifting rod to move upwards, and the blank after injection molding of the outer layer is blocked by the protruding block and separated from the lifting rod when lifted;
(6) the third hydraulic cylinder drives the second horizontal rod to move forwards, the second horizontal rod ejects out the residual materials in the second groove, and then the third hydraulic cylinder drives the second horizontal rod to retract and restore to the original shape.
The invention has the beneficial effects that:
(1) the invention provides a die for increasing the outer layer of a blank base body, which has high automation degree, can quickly realize the outer layer reprocessing of the blank and further improves the performance of an object.
(2) The upper base plate of the die can move back and forth and drive the first lifting block to move up and down and back and forth, so that the rapid fixing, forming and separating of outer blank parts can be realized.
(3) The mould is provided with the second horizontal rod, so that the residual grouting forming material can be ejected out after the injection molding is finished, and the blockage of the grouting material and the pollution to other objects during the forming are avoided.
(4) The second lifting block of the die can be matched with the guide rod to realize automatic lifting, the operation is simple, the operation safety is improved, and the fitting degree of the male die and the female die is ensured.
(5) The preparation method has the advantages of reasonable design and simple operation, and can ensure the product quality and improve the qualification rate.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the overall structure of the male mold (with the blank to be applied in the first recess).
FIG. 3 is a schematic view of the overall structure of the male mold of the present invention (the blank member to be applied is not placed in the first recess).
FIG. 4 is a side view of the overall construction of the male mold of the present invention.
Fig. 5 is a connection structure diagram of the main body board and the upper substrate according to the present invention.
FIG. 6 is a view of the second lifting block of the male mold of the present invention after being removed.
Fig. 7 is a schematic view of a second lift block structure according to the present invention.
Fig. 8 is a schematic view of the first lift block structure of the present invention.
FIG. 9 is a schematic structural diagram of a master model of the present invention.
FIG. 10 is a schematic view of the connection structure of the second horizontal bar and the main body plate according to the present invention.
Fig. 11 is a schematic view of a connection structure of the first circulating water through hole, the second circulating water through hole and the female mold according to the present invention. (for clear display of each part, the female mold is hollow as a whole, and the actual interior is a solid)
Fig. 12 is a schematic view of the connection structure of the third circulating water through hole, the fourth circulating water through hole and the male mold according to the present invention. (for clarity of the parts, the male mold is hollow, the actual interior is solid)
In the figure, 1, a main body plate, 2, a first groove, 3, an upper base plate, 4, a lower base plate, 5, a first horizontal rod, 6, a protruding block, 7, a first lifting block, 8, a lifting rod, 9, a second hydraulic cylinder, 10, a second lifting block, 11, a guide rod, 12, a blind hole, 13, a second groove, 14, a grouting hole, 15, a second horizontal rod, 16, a first through hole, 17, a first circulating water through hole, 18, a second circulating water through hole, 19, a third circulating water through hole, 20 and a fourth circulating water through hole; 21. fourth groove, 22, fifth groove, 23, sixth groove, 24, blank, 25, seventh groove.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For clarity of description, the opposing faces of the male and female molds are the respective front orientations.
Example 1
An injection mold for an outer layer of a blank piece comprises a male mold and a female mold which are matched with each other, wherein the male mold comprises a main body plate 1, and an upper substrate 3 and a lower substrate 4 are respectively fixed at the upper part and the lower part of the front side of the main body plate;
the upper part of the front side of the lower substrate 4 is provided with a first groove 2 which is matched with the shape of the outer layer of the blank to be injection-molded;
the rear side of the main body plate 1 is connected with a second hydraulic cylinder 9, and a piston rod of the second hydraulic cylinder penetrates through the main body plate and drives the upper base plate to move back and forth in the horizontal direction;
the front end of the upper base plate 3 is provided with a convex block 6, the convex block is provided with a through hole, and the upper part of the through hole is movably connected with a first lifting block 7 which is vertically distributed; a lifting rod 8 is fixed at the bottom of the first lifting block, the lifting rod is inserted into the through hole, and when the lifting rod 8 descends to the bottommost part, the bottom of the lifting rod is positioned in the first groove 2; the upper part of the first lifting block 7 is connected with a first hydraulic cylinder;
the front side of the lower substrate 4 is provided with a second groove 13 which is communicated with the first groove; a third hydraulic cylinder is arranged on the rear side of the lower part of the main body plate; the front end of the third hydraulic cylinder is fixed with a second horizontal rod 15, the main body plate and the lower base plate are provided with a first through hole 16, when the second horizontal rod is in a forward extending state, the second horizontal rod penetrates through the first through hole, and the front end of the second horizontal rod is positioned in the second groove.
Example 2:
on the basis of embodiment 1, a second lifting block 10 is movably connected to the lower part of the front side of the lower substrate;
a guide rod 11 is fixed at the bottom of one side of the female die close to the male die and is obliquely and downwards arranged; the second lifting block is provided with a blind hole 12 which is arranged obliquely downwards, and when the female die is attached to the male die, the guide rod is gradually inserted into the blind hole.
For the surface of the female die opposite to the male die, the upper side is provided with a fourth groove 21 matched with the second lifting block, and the middle part is provided with a fifth groove 22 and a sixth groove 23 matched with the outer layer to be injection-molded on the other side of the blank; the fifth groove is communicated with the sixth groove and the grouting hole 14 on the female die, when the female die is attached to the male die, the fifth groove is attached to the edge of the second groove, and the sixth groove is attached to the edge of the first groove; the lower part of the female die is provided with a seventh groove 25 matched with the second lifting block.
The female die is provided with a first circulating water through hole 17 and a second circulating water through hole 18 which are horizontally distributed and longitudinally distributed, the second circulating water through hole is communicated with the first circulating water through hole, the first circulating water through hole penetrates through the side wall of the female die and then is communicated with the outside, and one end of the second circulating water through hole is close to the sixth groove 23.
And a third circulating water through hole 19 and a fourth circulating water through hole 20 are horizontally distributed and longitudinally distributed on the lower substrate, the fourth circulating water through hole is communicated with the third circulating water through hole, the third circulating water through hole passes through the side wall of the lower substrate and then is communicated with the outside, and one end of the fourth circulating water through hole is close to the first groove.
And the four corners of the lower substrate are respectively provided with a seventh groove, the front end of the third hydraulic cylinder is also fixedly provided with a first horizontal rod 5, and the first horizontal rod 5 can move back and forth along the seventh groove.
The first horizontal bar 5 is externally wound with a spring ring (not shown in the drawings).
Example 3:
the preparation method of the injection mold of the outer layer of the blank piece comprises the following steps:
(1) firstly, a first hydraulic cylinder drives a first lifting block 7 to further drive a lifting rod 8 to move downwards, a blank piece is inserted onto the lifting rod through a middle hole of the blank piece, and a second hydraulic cylinder 9 drives an upper base plate 3 to further drive the blank piece to move backwards into a first groove 2;
(2) the main driving device drives the male die to move towards the female die, at the moment, a guide rod 11 of the female die is in contact with a blind hole 12 in the second lifting block 10, and due to the fact that the guide rod is arranged obliquely downwards, the second lifting block gradually moves upwards along with the approach of the male die and the female die, and finally the upper portion of the second lifting block is attached to the bottom of the blank piece 24;
(3) injecting a proper amount of slurry into the grouting holes 14 through the second grooves 13, enabling the slurry to enter the first grooves 2 and the sixth grooves 23 through the fifth grooves 22, opening circulating water, cooling the whole mold, filling the slurry into gaps among the blank pieces, the first grooves and the sixth grooves 23, and performing injection molding on the outer portions of the blank pieces according to the shapes of the first grooves and the sixth grooves;
(4) the main hydraulic cylinder drives the male die to be far away from the female die, and the second lifting block moves downwards along with the male die to be separated from the bottom of the blank piece of the outer layer after injection molding;
(5) the second hydraulic cylinder drives the upper base plate, and further drives the blank member of the outer layer after injection molding to move forwards and away from the first groove 2; the first hydraulic cylinder drives the first lifting block 7 to further drive the lifting rod to move upwards, and the blank after injection molding of the outer layer is blocked by the protruding block 6 and separated from the lifting rod when rising;
(6) the third hydraulic cylinder drives the second horizontal rod 15 to move forward, the second horizontal rod ejects out the residual materials in the second groove 2, and then the third hydraulic cylinder drives the second horizontal rod to retract and restore to the original shape.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An outer injection mold of blank piece which characterized in that: the male die comprises a main body plate (1), wherein an upper substrate (3) and a lower substrate (4) are respectively fixed on the upper part and the lower part of the front side of the main body plate;
the upper part of the front side of the lower substrate (4) is provided with a first groove (2) which is matched with the shape of the outer layer of the blank to be injection-molded;
the rear side of the main body plate (1) is connected with a second hydraulic cylinder (9), and a piston rod of the second hydraulic cylinder penetrates through the main body plate and drives the upper substrate to move back and forth in the horizontal direction;
the front end of the upper substrate (3) is provided with a convex block (6), the convex block is provided with a through hole, and the upper part of the through hole is movably connected with a first lifting block (7) which is vertically distributed; a lifting rod (8) is fixed at the bottom of the first lifting block, the lifting rod is inserted into the through hole, and when the lifting rod (8) is lowered to the bottommost part, the bottom of the lifting rod is positioned in the first groove (2); the upper part of the first lifting block (7) is connected with a first hydraulic cylinder;
a second groove (13) is formed in the front side of the lower substrate (4) and communicated with the first groove; a third hydraulic cylinder is arranged on the rear side of the lower part of the main body plate; and a second horizontal rod (15) is fixed at the front end of the third hydraulic cylinder, a first through hole (16) is formed in the main body plate and the lower base plate, when the second horizontal rod is in a forward extending state, the second horizontal rod penetrates through the first through hole, and the front end of the second horizontal rod is positioned in the second groove.
2. An injection mold for an outer layer of a blank member according to claim 1, wherein: a second lifting block (10) is movably connected to the lower part of the front side of the lower substrate;
a guide rod (11) is fixed at the bottom of one side of the female die, which is close to the male die, and the guide rod is obliquely arranged downwards; the second lifting block is provided with a blind hole (12) which is arranged obliquely downwards, and when the female die is attached to the male die, the guide rod is gradually inserted into the blind hole.
3. An injection mold for an outer layer of a blank member according to claim 2, wherein: for the surface of the female die opposite to the male die, the upper side of the female die is provided with a fourth groove (21) matched with the second lifting block, and the middle part of the female die is provided with a fifth groove (22) and a sixth groove (23) matched with the outer layer to be injection-molded on the other side of the blank; the fifth groove is communicated with the sixth groove and a grouting hole (14) on the female die, when the female die is attached to the male die, the fifth groove is attached to the edge of the second groove, and the sixth groove is attached to the edge of the first groove; the lower part of the female die is provided with a seventh groove (25) matched with the second lifting block.
4. An injection mold for an outer layer of a blank member according to claim 1, wherein: the female die is provided with a first circulating water through hole (17) which is horizontally distributed and a second circulating water through hole (18) which is longitudinally distributed, the second circulating water through hole is communicated with the first circulating water through hole, the first circulating water through hole penetrates through the side wall of the female die and then is communicated with the outside, and one end of the second circulating water through hole is close to the sixth groove (23).
5. An injection mold for an outer layer of a blank member according to claim 1, wherein: and a third circulating water through hole (19) and a fourth circulating water through hole (20) are horizontally distributed on the lower substrate, the fourth circulating water through hole is communicated with the third circulating water through hole, the third circulating water through hole penetrates through the side wall of the lower substrate and then is communicated with the outside, and one end of the fourth circulating water through hole is close to the first groove.
6. An injection mold for an outer layer of a blank member according to claim 1, wherein: and the four corners of the lower substrate are respectively provided with a seventh groove, the front end of the third hydraulic cylinder is also fixedly provided with a first horizontal rod (5), and the first horizontal rod (5) can move back and forth along the seventh groove.
7. An injection mold for an outer layer of a blank member according to claim 6, wherein: the first horizontal rod (5) is externally wound with a spring ring.
8. An injection mold for an outer layer of a blank member according to claim 1, wherein: first recess (2) have two, and lifter (8) have two, and two lifter (8) correspond with first recess (2) respectively and place.
9. Method for the production of an injection mould for the outer layer of a blank according to any of the claims 1-8, characterised in that it comprises the following steps:
(1) firstly, a first hydraulic cylinder drives a first lifting block (7) to further drive a lifting rod (8) to move downwards, a blank piece is inserted onto the lifting rod through a middle hole of the blank piece, and a second hydraulic cylinder (9) drives an upper base plate (3) to further drive the blank piece to move backwards into a first groove (2);
(2) the main driving device drives the male die to move towards the female die, at the moment, a guide rod (11) of the female die is in contact with a blind hole (12) in the second lifting block (10), and due to the fact that the guide rod is arranged obliquely downwards, the second lifting block gradually moves upwards along with the fact that the male die is close to the female die, and finally the upper portion of the second lifting block is attached to the bottom of a blank piece (24);
(3) injecting a proper amount of slurry into the grouting holes (14) through the second grooves (13), enabling the slurry to enter the first grooves (2) and the sixth grooves (23) through the fifth grooves (22), opening circulating water, cooling the whole mold, filling the slurry into gaps among the blank pieces, the first grooves and the sixth grooves (23), and performing injection molding on the outer portions of the blank pieces according to the shapes of the first grooves and the sixth grooves;
(4) the main hydraulic cylinder drives the male die to be far away from the female die, and the second lifting block moves downwards along with the male die to be separated from the bottom of the blank piece of the outer layer after injection molding;
(5) the second hydraulic cylinder drives the upper base plate, so that the blank piece of the outer layer after injection molding is driven to move forwards and away from the first groove (2); the first hydraulic cylinder drives the first lifting block (7) to further drive the lifting rod to move upwards, and the blank after injection molding of the outer layer is blocked by the protruding block (6) and separated from the lifting rod when rising;
(6) the third hydraulic cylinder drives the second horizontal rod (15) to move forwards, the second horizontal rod ejects out the residual materials in the second groove (2), and then the third hydraulic cylinder drives the second horizontal rod to retract and restore to the original shape.
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