CN113681843A - Full-automatic demolding rubber mold and demolding method thereof - Google Patents
Full-automatic demolding rubber mold and demolding method thereof Download PDFInfo
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- CN113681843A CN113681843A CN202110855233.XA CN202110855233A CN113681843A CN 113681843 A CN113681843 A CN 113681843A CN 202110855233 A CN202110855233 A CN 202110855233A CN 113681843 A CN113681843 A CN 113681843A
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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
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/442—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with mechanical ejector or drive means 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
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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Abstract
The full-automatic demolding rubber mold comprises a bottom mold fixed with a lower hot plate of a vulcanizing machine, a supporting mold arranged on the bottom mold and capable of being inserted into an external bracket, an upper mold arranged right above the supporting mold and fixed with an upper hot plate of the vulcanizing machine, a cavity module assembly arranged on the supporting mold and surrounding to form a product cavity, and a middle mold supported between the supporting mold and the upper mold, wherein the middle mold is fixed with the upper mold and surrounding to the periphery of the cavity module assembly, the cavity module assembly comprises a mold core positioned in the center and fixed with the supporting mold and a flap mold surrounding to the periphery of the mold core, a product cavity is formed between the mold core and the flap mold, the bottom mold is in guiding fit with the flap mold, the flap mold moves outwards along with the relative motion of the supporting mold and the bottom mold and is separated from a product, and the product is pulled to be separated from the mold core in the motion process. The invention improves the product vulcanization efficiency and the space utilization rate of the die, effectively ensures the module separation sequence, reduces the demolding time, improves the demolding efficiency and realizes full-automatic core-pulling demolding. The invention also discloses a demoulding method of the full-automatic demoulding rubber mould.
Description
Technical Field
The invention relates to a full-automatic demoulding rubber mould and a demoulding method thereof, belonging to the technical field of automatic demoulding of rubber moulds.
Background
The rubber product is composed of a pair of L-shaped end plate iron pieces a, a trapezoidal connecting iron piece b and rubber c, and the iron pieces and the rubber are bonded by chemical adhesives as shown in figure 1. All there is the mounting hole in the Z direction on the ironware, all has the recess in X and Z's positive and negative direction on the rubber face. In the demolding process, core pulling actions of the mold cavity in the X direction and the Z direction and demolding of the mold part matched with the L-shaped end plate iron piece in the Y direction are at least completed.
The main defects of the existing rubber mold are as follows:
1. one set of combined driving mechanism can only act on one cavity of vulcanized product, and the core-pulling direction is only limited in the transverse direction.
2. The requirement of the core-pulling stroke is large, and all actions are realized by the die parts, so that a large space needs to be reserved in the die to meet the requirement, and the space utilization rate of the die is small.
3. Through the composite core pulling mechanism, the delay is realized by utilizing the spring, the floating slide block, the distance pull rod and the like, the core pulling is well completed, but the delay core pulling only relates to twice core pulling of the side surface, and certain use limitation is realized.
4. The delayed core pulling only relates to one-time core pulling of the side surface, and has certain use limitation.
Disclosure of Invention
According to the full-automatic demolding rubber mold and the demolding method thereof, provided by the invention, the product vulcanization efficiency and the space utilization rate of the mold are improved, the module separation sequence is effectively ensured, the sequential separation of the upper mold middle mold, the bottom mold, the split mold and the mold core from the product is realized, the demolding time is shortened, the demolding efficiency is improved, and the full-automatic core-pulling demolding is realized.
In order to achieve the purpose, the invention adopts the technical scheme that:
full-automatic drawing of patterns rubber mold includes the die block fixed with hot plate under the vulcanizer, arrange in the die block on and can insert the die supporting on the external bracket, set up directly over the die supporting and the vulcanizer fixed last mould of hot plate, set up on the die supporting and surround the die cavity module subassembly that forms the product die cavity, support the well mould between die supporting and last mould, well mould and last mould are fixed and surround around the die cavity module subassembly, its characterized in that: the cavity module assembly comprises a mold core and petals, the mold core is located in the center and fixed with the support mold, the petals surround the mold core, a product cavity is formed between the mold core and the petals, the bottom mold is in guiding fit with the petals, the petals move outwards along with the relative motion of the support mold and the bottom mold and are separated from a product, and the product is pulled to be separated from the mold core in the motion process.
Preferably, the bottom die comprises a bottom die plate fixed with a lower hot plate of the vulcanizing machine, an inclined guide post fixed on the bottom die plate and a lower insert fixed on the bottom die plate, the supporting die is arranged on the bottom die plate, a product is formed on the lower insert, the inclined guide post is in guiding fit with the flap die, the flap die is driven by the relative motion of the supporting die and the bottom die to move outwards along the guiding motion of the inclined guide post to the periphery of the die core, the lower insert is provided with a stop pin used for limiting the product and the flap die to move together, and the stop pin is located in the middle of the lower insert and extends upwards along the vertical direction.
Preferably, the petals comprise Y-direction petals arranged on the front side and the rear side of the mold core and X-direction petals arranged on the left side and the right side of the mold core, the Y-direction petals and the X-direction petals surround the mold core, and two product cavities symmetrically distributed are formed on the left side and the right side of the mold core.
Preferably, the inclined guide post is provided with a Y guide inclined plane inclined along the front-back direction of the mold core and an X guide inclined plane inclined along the left-right direction of the mold core, the Y guide inclined plane is in guide fit with the Y directional petal, the X guide inclined plane is in guide fit with the X directional petal, and the relative motion of the support mold and the bottom mold drives the Y directional petal to move on the Y guide inclined plane in a guide way to be separated from a product and drives the X directional petal to move on the X guide inclined plane to be separated from the product.
Preferably, the mold core is fixed on the support mold through a cushion block, the cushion block extends into the Y-direction flap mold along the front-back direction and extends into the X-direction flap mold along the left-right direction, the lower insert penetrates out of the support mold and the cushion block, an L-shaped end plate iron piece of the product is arranged on the cushion plate, and a sequential demolding mechanism capable of pulling the support mold and the bottom mold to be synchronously separated from the middle mold is fixed on the bottom mold plate.
Preferably, the sequential demolding mechanism comprises a cam fixed on the side surface of the supporting mold, two clamping arms which are rotatably arranged on the bottom mold plate and used for clamping the cam, and a restraining plate which is arranged on the middle mold and used for restraining the two clamping arms from being opened, the clamping arms pull the cam to synchronously move downwards along with the downward movement of the bottom mold and separate from the restraining plate, and the clamping arms are opened along with the upward movement of the supporting mold relative to the bottom mold and separate from the cam.
Preferably, the cushion block is provided with a delay pulling plate, the bottom of the X-direction flap mold is provided with a pulling pin matched with the delay pulling plate, the delay pulling plate is provided with a cylindrical pin matched with an L-shaped end plate iron piece mounting hole on a product, the delay pulling plate is provided with a waist-shaped through hole matched with the pulling pin, and the X-direction flap mold moves in a guide way on the X-direction inclined plane to drive the pulling pin to move along the waist-shaped through hole to abut against the end part of the waist-shaped through hole.
The demolding method of the full-automatic demolding rubber mold is characterized by comprising the following steps of: a
S1, moving the lower hot plate of the vulcanizing machine downwards after the product is vulcanized and molded to separate the upper die and the middle die from the product;
s2, inserting two ends of the supporting die into the external brackets, moving the external brackets upwards to lift the supporting die, driving the bottom die to be separated from the product, and enabling the petals to move outwards on the bottom die in a guiding manner to the periphery of the die core to be separated from the product;
s3, the supporting die continues to rise, and the product is pulled to be separated from the die core through the motion of the flap die;
and S4, grabbing the product upwards to finish demoulding.
Preferably, step S specifically means: firstly, two ends of a supporting die are inserted into an external bracket through opening a lower hot plate of a vulcanizing machine; moving the external bracket upwards to separate the cam from the clamping arm; then, the external bracket is continuously moved upwards to separate the supporting die from the bottom template so as to drive the product, the die core and the cushion block to rise, so that the product is separated from the lower insert and the stop pin is not separated from the product; and then the external bracket is moved upwards continuously, the Y-direction flap moves on the Y-direction inclined plane, the X-direction flap moves on the X-direction inclined plane, so that the Y-direction flap and the X-direction flap are separated from the product, and the stop pin limits the product and limits the product to move.
Preferably, step S specifically means: and the supporting die continuously rises to enable the pulling pin at the bottom of the X-direction flap die to abut against the end part of the waist-shaped through hole on the extension pulling plate, and the stop pin is separated from the product, and then the X-direction flap die pulls the product to be separated from the die core through the delay pulling plate.
The invention has the beneficial effects that:
according to the full-automatic demolding rubber mold, the supporting mold is placed on the bottom mold, the cavity module assembly is arranged on the supporting mold and comprises the mold core and the petals surrounding the periphery of the mold core, product cavities are formed between the mold core and the petals, namely two symmetrically distributed product cavities are formed on the left side and the right side of the mold core, the two cavities are compactly arranged and can realize synchronous demolding, the product vulcanization efficiency and the space utilization rate of the mold are improved, the petals are in guiding fit with the bottom mold, the supporting mold moves upwards relative to the bottom mold to enable the petals to move outwards towards the periphery of the mold core in a guiding mode to be separated from a product, the product is pulled to be separated from the mold core in the moving process of the petals, the separation sequence of the modules is effectively ensured, and full-automatic core-pulling demolding is realized.
A sequential demoulding mechanism is arranged between the supporting mould and the bottom mould, the sequential demoulding mechanism is used for pulling the supporting mould and the bottom mould to synchronously move downwards, the mould core is fixed on the supporting mould through a backing plate, the backing plate supports an L-shaped end plate iron piece of a product and extends into the Y-direction flap mould and the X-direction flap mould, the Y-direction flap mould and the X-direction flap mould are pulled by the backing plate to synchronously move downwards with the supporting mould, and the flap mould overcomes the pressing force between the flap mould and the middle mould and synchronously moves downwards with the supporting mould to separate from the middle mould; the petal molds are in guiding fit with the bottom mold, the supporting mold moves upwards relative to the bottom mold to enable the petal molds to move outwards on the bottom mold in a guiding way and move towards the periphery of the mold core to be separated from a product, the inclined guide columns are used for synchronously guiding the X-direction petal molds and the Y-direction petal molds, the stop pins extend into the product to temporarily limit the product so as to ensure the separation of the product and the petal molds, the cooperation of the extension pull plates and the X-direction petal molds ensures that the product can be pulled to be separated from the mold core in the moving process of the X-direction petal molds, the sequential separation of the upper mold middle mold, the bottom mold and the petal molds from the product is realized, the demolding time is reduced, the demolding efficiency is improved, the compression self-locking between the middle mold and the petal molds caused by the vulcanization heating expansion is overcome through the sequential demolding mechanism, the sequential full-automatic demolding process is realized through the arrangement of the inclined guide columns, the stop pins and the delay pull plates, the demolding reliability is high, the sequential motion independence and the operability of each module is strong, the full-automatic core pulling and demolding are realized, the production efficiency of products is improved, and the production labor intensity is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a product.
FIG. 2 is an exploded view of the fully automatic demolding rubber mold when the upper mold and the middle mold are separated.
FIG. 3 is a schematic view of the combination of the bottom mold, the supporting mold, the cavity module and the product.
FIG. 4 is a semi-sectional view of the bottom mold, the carrier mold, the cavity module assembly and the product assembly.
Fig. 5 is a schematic view of the mold carrier moving upward relative to the bottom mold to a predetermined position.
Fig. 6 is a combination schematic diagram of a cushion block, a lower insert and a product.
FIG. 7 is a schematic view of the beveled guide post.
Fig. 8 is a schematic view of a time delay pulling plate.
Fig. 9 is a schematic view of an X-direction petal.
Fig. 10 is a schematic diagram of X-direction petals, delayed elongation, and product fit.
Detailed Description
Embodiments of the present invention will be described in detail with reference to fig. 2 to 10.
Full-automatic drawing of patterns rubber mold includes die block 1 fixed with the hot plate under the vulcanizer, arrange die block 1 in and can insert die holder 2 on the external bracket, set up directly over die holder 2 and the vulcanizer on the hot plate fixed go up mould 3, set up on die holder 2 and surround the die cavity module subassembly 4 that forms the product die cavity, support at die holder 2 and last mould 5 between 3, well mould 5 is fixed with last mould 3 and surrounds around die cavity module subassembly 4, its characterized in that: the cavity module assembly 4 comprises a mold core 6 which is located at the center and fixed with the supporting mold and petals 7 which surround the mold core, a product cavity A is formed between the mold core 6 and the petals 7, the bottom mold 1 is in guiding fit with the petals 7, the petals 7 move outwards along with the relative motion of the supporting mold 2 and the bottom mold 1 to be separated from the product, and the product is pulled to be separated from the mold core 6 in the motion process.
Above full-automatic drawing of patterns rubber mold, place die carrier 2 on die block 1, set up cavity module subassembly 4 on die carrier 2, cavity module subassembly 4 includes mold core 6 and surrounds at mold core 6 lamella mould 7 all around, form product cavity A between mold core 6 and the lamella mould 7, form two product cavity A of symmetric distribution promptly in the mold core 6 left and right sides, two cavities arrange the compactness and can realize synchronous drawing of patterns, improve the space utilization of product vulcanization efficiency and mould, lamella mould 7 and die block 1 direction cooperation, die carrier 2 makes the relative die block 1 up-going motion of lamella mould 2 move outward around mold core 6 with the product break away from to drawing product and mold core 6 break away from in the removal of lamella mould 7 in-process, the precedence order that the module breaks away from has effectively been ensured, realize full-automatic drawing of core drawing of patterns.
The bottom die 1 comprises a bottom die plate 11 fixed with a lower hot plate of a vulcanizing machine, an inclined guide post 12 fixed on the bottom die plate 11 and a lower insert 13 fixed on the bottom die plate 11, the support die 2 is arranged on the bottom die plate 11, a product is formed on the lower insert 13, the inclined guide post 12 is in guiding fit with the split die 7, the relative motion of the support die 2 and the bottom die 1 drives the split die 7 to move outwards along the guiding motion of the inclined guide post 12 to the periphery of the die core 6, the lower insert 13 is provided with a stop pin 131 used for limiting the product and the split die 7 to move together, and the stop pin 131 is located in the middle of the lower insert 13 and extends upwards along the vertical direction. When demoulding, firstly, the lower heating plate of the vulcanizer is moved downwards to separate the middle mold 5 from the upper mold 3, then the lower heating plate of the vulcanizer is opened, the supporting mold 2 is inserted into the external bracket, the supporting mold 2 and the cavity module assembly 4 are driven to move upwards by the upward movement of the external bracket, because the lower insert 13 and the inclined guide post 12 are respectively fixed with the bottom mold plate 11, when the external bracket drives the supporting mold 2 to move upwards, the lower insert 13 is separated from the product, the flap mold 7 moves on the inclined guide post 12, the stop pin 131 is arranged on the lower insert 13, the stop pin 131 cannot be separated from the product immediately after the lower insert is separated from the product, the movement of the product is limited when the flap mold 7 starts to move, so that the flap mold 7 can be separated from the product, when the external bracket continues to drive the supporting mold 2 to move upwards, the stop pin 131 can be separated from the product, the limit of the product is eliminated, so that the flap mold 7 can pull the product to move to separate from the mold core 6 in the moving process, the stop pin 131 is arranged to temporarily limit the product, so that the valve mold 7 can be separated from the product, and the reliability and operability of full-automatic demolding are improved.
The petals 7 comprise Y-direction petals 71 arranged on the front side and the rear side of the mold core and X-direction petals 72 arranged on the left side and the right side of the mold core, the Y-direction petals 71 and the X-direction petals 72 surround the mold core 6, and two product cavities A which are symmetrically distributed are formed on the left side and the right side of the mold core 6. It can be seen from the drawing that two Y-direction petals 71 are arranged on the front side and the rear side of the mold core 6, two X-direction petals 72 are arranged on the left side and the right side of the mold core 6, the mold core 6 is in contact with the Y-direction petals 71 in a fitting manner, two product cavities A are formed on the left side and the right side of the mold core 6, so that two products can be molded through one-time vulcanization, the two cavities are arranged side by side and are compact in spatial position, the space utilization rate of an inner cavity of the mold is improved, the Y-direction petals 71 and the X-direction petals 72 synchronously move, synchronous demolding of the two products is realized, and the production efficiency is improved.
The inclined guide post 12 is provided with a Y-shaped guide inclined plane 121 inclined along the front-back direction of the mold core and an X-shaped guide inclined plane 122 inclined along the left-right direction of the mold core, the Y-shaped guide inclined plane 121 is in guide fit with the Y-shaped petals 71, the X-shaped guide inclined plane 122 is in guide fit with the X-shaped petals 72, and relative movement of the support mold 2 and the bottom mold 1 drives the Y-shaped petals 71 to move on the Y-shaped guide inclined plane 121 in a guide manner to separate from a product and drives the X-shaped petals 72 to move on the X-shaped guide inclined plane 122 in a guide manner to separate from the product. After the lower insert 13 is separated from the product, the external bracket is moved upwards continuously, the Y-direction flap 71 moves upwards on the Y-direction inclined plane 121, so that the Y-direction flap 71 moves upwards and outwards, the X-direction flap 72 moves upwards and outwards on the X-direction inclined plane 121, so that the X-direction flap 72 moves upwards and outwards, the stop pin 131 is not separated from the product, when the X-direction flap 72 and the Y-direction flap 71 move outwards, the product is limited in the original position and does not move, so that the product is separated from the flap, the X-direction inclined plane 122 and the Y-direction inclined plane 121 drive the X-direction flap 72 and the Y-direction flap 71 to move outwards through inclined plane guiding, so that the X-direction flap 72 and the Y-direction flap 71 move to be separated from the product 100 after the insert is separated from the product, a movement sequence is formed, the uniqueness of the movement direction of the flap 7 is ensured, and the reliability of demoulding is higher.
The mold core 6 is fixed on the support mold 2 through a cushion block 8, the cushion block 8 extends into the Y-direction flap mold 71 along the front-back direction and extends into the X-direction flap mold 72 along the left-right direction, the lower insert 13 penetrates out of the support mold 2 and the cushion block 8, an L-shaped end plate iron piece of a product is arranged on the backing plate 8, and a sequential demolding mechanism 9 capable of pulling the support mold 2 and the bottom mold 1 to be synchronous and separate from the middle mold 5 is fixed on the bottom mold plate 11. Because the product expands after the temperature is raised by vulcanization to press the X-direction flap mold 72 and the Y-direction flap mold 71 onto the middle mold 5, the flap mold 7 does not move downwards due to the action of gravity, the mold core 6 is fixed on the support mold 2 through the backing plate 8, the backing plate 8 extends into the Y-direction flap mold 71 and the X-direction flap mold 72, the lower hot plate of the vulcanizing machine drives the bottom mold 1 to move downwards to separate the middle mold 5 from the upper mold 3, the backing plate 8 pulls the Y-direction flap mold 71 and the X-direction flap mold 72 to move downwards synchronously with the support mold 2, so that the flap mold 7 overcomes the pressing force between the flap mold and the middle mold 5 to move downwards synchronously with the support mold 2 to separate from the middle mold 5, the sequential demolding mechanism 9 is arranged to pull the support mold 2 and the bottom mold 1 to move downwards synchronously, and the flap mold 7 and the middle mold 5 are separated sequentially by the pulling of the backing plate 8 and the sequential demolding mechanism 9, and the flap mold 7 and the middle mold 5 are prevented from forming self-locking due to the product expansion; in addition, an L-shaped end plate iron piece of the product is arranged on the backing plate 8, namely the cushion block 8 supports the product, when the external bracket drives the support die 2 to move upwards, the backing plate 8 supports the product to enable the end face of the product to be smoothly separated from the lower insert 13, the demoulding reliability is higher, and the effective movement of each part in the die is effectively ensured.
The sequential demolding mechanism comprises a cam 91 fixed on the side surface of the mold carrier, two clamping arms 92 which are rotatably arranged on a bottom mold 1 plate and clamp the cam 91, and a restraining plate 93 which is arranged on the middle mold 5 and is used for restraining the two clamping arms 92 from being opened, wherein the clamping arms 92 pull the cam 91 to synchronously move downwards along with the downward movement of the bottom mold and are separated from the restraining plate 93, and the clamping arms are opened along with the upward movement of the mold carrier 2 relative to the bottom mold 1 and are separated from the cam 91. When the bottom die 1 moves downwards along with the downward movement of the lower hot plate of the vulcanizing machine, the cam 91 is clamped by the constraint clamping arm 92 of the constraint plate 93, so that the support die 2 and the bottom die 1 are pulled to move downwards synchronously to be separated from the upper die 3 and the middle die 5, meanwhile, the constraint plate 93 moves upwards along with the upward movement of the constraint plate 93 and is separated from the clamping arm 92, so that the clamping arm 92 is in an openable state, when the support die 2 moves upwards along with an external bracket, the cam 91 opens the two clamping arms 92 to be separated from the cam 91, the connection between the support die 2 and the bottom die 1 is eliminated, the upward movement of the support die 2 cannot pull the bottom die 1, so that the separation of the lower insert 13 from a product and the upward movement of the split die 7 on the inclined guide post 12 are realized, the temporary connection between the support die 2 and the bottom die 1 is realized by the cooperation of the clamping arm 92, the cam 91 and the constraint plate 93, the smooth separation of the middle die 5 and the split die 7 is ensured, and the sequential core-pulling and the die stripping is realized.
The cushion block 8 is provided with a delay pulling plate 10, the bottom of the X-direction flap die 72 is provided with a pulling pin 721 matched with the delay pulling plate, the delay pulling plate 10 is provided with a cylindrical pin 101 matched with an L-shaped end plate iron fitting mounting hole on a product, the delay pulling plate 10 is provided with a kidney-shaped through hole 102 matched with the pulling pin 721, and the X-direction flap die 72 moves on the X-direction inclined plane 122 in a guiding manner to drive the pulling pin 721 to move along the kidney-shaped through hole 102 to abut against the end of the kidney-shaped through hole 102. At the initial movement of the X-direction split die 72, the pulling pin 721 moves in the kidney-shaped through hole 102, at which time the delay pulling plate 10 is in a pre-actuated state, when the pulling pin 721 moves against the end of the kidney-shaped through hole 102, the stop pin 131 has disengaged from the product and no longer limits the movement of the product, after which the movement of the X-directional petal 72 will pull the delay pulling plate 10, the delay pulling plate 10 pulls the product by means of the cylindrical pin 101, thereby realizing the outward movement of the product and the separation of the mold core 6, the arrangement of the delay pulling plate 10 ensures that the movement of the product is later than that of the X-direction split mold 72, the mold core pulling and demolding device has the advantages that the movement of a product is delayed, the valve mold 7 and the mold core 6 are separated from the product in sequence, the core pulling and demolding are guaranteed to be realized in sequence, the demolding reliability is high, the sequential movement of the modules is independent, the operability is high, the full-automatic core pulling and demolding is realized, the production efficiency of the product is improved, and the production labor intensity is reduced.
The invention also provides a demolding method of the full-automatic demolding rubber mold, which is characterized by comprising the following steps of:
s1, moving the lower hot plate of the vulcanizing machine downwards after the product is vulcanized and molded to separate the upper die 3 and the middle die 5 from the product;
s2, inserting two ends of the supporting die 2 into external brackets, moving the external brackets to enable the supporting die 2 to ascend, driving the bottom die 1 to be separated from the product, and enabling the petals 7 to move outwards on the bottom die in a guiding mode and move towards the periphery of the die core 6 to be separated from the product;
s3, the supporting die continues to rise, and the product is pulled to be separated from the die core 6 by the movement of the flap die 7;
and S4, grabbing the product upwards to finish demoulding.
The demolding method of the full-automatic demolding rubber mold has the advantages that the middle mold, the bottom mold, the valve mold and the mold core are sequentially separated from a product, demolding time is shortened, demolding efficiency is improved, demolding reliability is high, sequential movement of the modules is independent, noninterference operability is high, full-automatic core-pulling demolding is realized, product production efficiency is improved, and production labor intensity is reduced.
Wherein, step S specifically means: firstly, two ends of a supporting die 2 are inserted into an external bracket through opening a lower hot plate of a vulcanizing machine; moving the external bracket upward to separate the cam 91 from the clamping arm 92; then, the external bracket is continuously moved upwards to separate the supporting die 2 from the bottom template 1 so as to drive the product, the die core 6 and the cushion block 8 to ascend, so that the product is separated from the lower insert 13, and the stop pin 131 is not separated from the product; then, the external bracket is moved upwards continuously, the Y-direction flap 71 moves on the Y-direction guide inclined plane 121, the X-direction flap 72 moves on the X-direction guide inclined plane 122, the Y-direction flap 71 and the X-direction flap 72 are separated from the product, and at the moment, the stop pin 13 limits the product and limits the product to move.
After the upper die 3 and the middle die 5 are separated, the supporting die 2 is inserted into an external bracket, the external bracket moves upwards to drive the supporting die 2 to move, the supporting die 2 moves upwards to firstly separate the cam 91 from the clamping arm 92, the connection between the bottom die 1 and the supporting die 2 is eliminated, then the supporting die 2 is lifted to separate from the bottom die 1 to separate the lower insert 13 from a product, then the Y-direction flap 72 and the Y-direction flap 71 move on the inclined guide post 12, the temporary limit of the product is realized through the stop pin 131 to separate the Y-direction flap 72 from the Y-direction flap 71 from the product, then the pull pin 721 is abutted against the end part of the kidney-shaped through hole 102 through the movement of the X-direction flap 72, the stop pin 131 of the product is separated from the product at the moment, the continuous movement of the X-direction flap 72 can pull the delay pull plate 10 to move outwards synchronously, so as to pull the product to separate from the die core 6, and the modules in the die are sequentially subjected to core pulling and demoulding, the movement delay of the product is realized through the arrangement of the stop pin 131 and the delay pulling plate 10, so that the petals 7 and the mold core 6 are separated from the product in sequence, and the operability and reliability of demolding are higher.
Wherein, step S specifically means: the supporting die 2 continuously rises to enable the pulling pin 721 at the bottom of the X-direction split die 72 to abut against the end of the waist-shaped through hole 102 on the extension pulling plate 10, and after the stop pin 131 is separated from the product, the X-direction split die 72 pulls the product to be separated from the die core 6 through the delay pulling plate 10. The pull pin 721 is abutted against the kidney-shaped through hole 102, the X-direction flap die 72 independently moves outwards, the stop pin 131 is separated from the product after the product is separated from the flap die 7, the product is not limited, the separation time of the stop pin 131 and the product 100 is earlier than the time of the abutment of the pull pin 721 and the end of the kidney-shaped through hole 102, so that the stop pin 131 cannot interfere with the movement of the product, when the pull pin 721 is abutted against the end of the kidney-shaped through hole 102, the X-direction flap die 72 pulls the delay pull plate 10 to move, so that the product 100 is pulled to move, the product 100 is separated from the mold core 6, the time point of the product movement is accurately set, and the reliability of demolding is higher.
The technical solutions of the embodiments of the present invention are fully described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Claims (10)
1. Full-automatic drawing of patterns rubber mold includes the die block fixed with hot plate under the vulcanizer, arrange in the die block on and can insert the die supporting on the external bracket, set up directly over the die supporting and the vulcanizer fixed last mould of hot plate, set up on the die supporting and surround the die cavity module subassembly that forms the product die cavity, support the well mould between die supporting and last mould, well mould and last mould are fixed and surround around the die cavity module subassembly, its characterized in that: the cavity module assembly comprises a mold core and petals, the mold core is located in the center and fixed with the support mold, the petals surround the mold core, a product cavity is formed between the mold core and the petals, the bottom mold is in guiding fit with the petals, the petals move outwards along with the relative motion of the support mold and the bottom mold and are separated from a product, and the product is pulled to be separated from the mold core in the motion process.
2. The full-automatic demolding rubber mold according to claim 1, characterized in that: the bottom die comprises a bottom die plate fixed with a lower hot plate of the vulcanizing machine, an inclined guide post fixed on the bottom die plate and a lower insert fixed on the bottom die plate, the supporting die is arranged on the bottom die plate, a product is formed on the lower insert, the inclined guide post is in guiding fit with the flap die, the flap die is driven by the relative motion of the supporting die and the bottom die to move outwards along the guiding motion of the inclined guide post to the periphery of the die core, the lower insert is provided with a stop pin used for limiting the product and the flap die to move together, and the stop pin is positioned in the middle of the lower insert and extends upwards along the vertical direction.
3. The full-automatic demolding rubber mold according to claim 2, characterized in that: the petals comprise Y-direction petals arranged on the front side and the rear side of the mold core and X-direction petals arranged on the left side and the right side of the mold core, the Y-direction petals and the X-direction petals surround the mold core, and two product cavities symmetrically distributed are formed on the left side and the right side of the mold core.
4. The full-automatic demolding rubber mold as claimed in claim 3, wherein: the inclined guide post is provided with a Y-shaped guide inclined plane inclined along the front-back direction of the mold core and an X-shaped guide inclined plane inclined along the left-right direction of the mold core, the Y-shaped guide inclined plane is in guide fit with the Y-shaped petals, the X-shaped guide inclined plane is in guide fit with the X-shaped petals, and the relative movement of the support mold and the bottom mold drives the Y-shaped petals to move on the Y-shaped guide inclined plane in a guide way to be separated from a product and drives the X-shaped petals to move on the X-shaped guide inclined plane in a guide way to be separated from the product.
5. The full-automatic demolding rubber mold according to claim 2, characterized in that: the mold core is fixed on the support mold through the cushion block, the cushion block extends into the Y-direction flap mold along the front-back direction and extends into the X-direction flap mold along the left-right direction, the lower insert penetrates out of the support mold and the cushion block, the L-shaped end plate iron piece of the product is arranged on the cushion plate, and the bottom mold plate is fixed with a sequential demolding mechanism capable of pulling the support mold and the bottom mold to be synchronously separated from the middle mold.
6. The full-automatic demolding rubber mold as claimed in claim 5, wherein: the sequential demolding mechanism comprises a cam fixed on the side surface of the mold support, two clamping arms which are rotatably arranged on the bottom template and used for clamping the cam, and a restraining plate which is arranged on the middle template and used for restraining the two clamping arms from being opened, wherein the clamping arms pull the cam to synchronously move downwards along with the downward movement of the bottom template and separate from the restraining plate, and the clamping arms open along with the upward movement of the mold support relative to the bottom template and separate from the cam.
7. The full-automatic demolding rubber mold as claimed in claim 5, wherein: the cushion block is provided with a delay pulling plate, the bottom of the X-direction flap mold is provided with a pulling pin matched with the delay pulling plate, the delay pulling plate is provided with a cylindrical pin matched with an L-shaped end plate iron piece mounting hole on a product, the delay pulling plate is provided with a kidney-shaped through hole matched with the pulling pin, and the X-direction flap mold moves in a guide way on the X-direction inclined plane to drive the pulling pin to move along the kidney-shaped through hole to be abutted against the end part of the kidney-shaped through hole.
8. The method for releasing a rubber mold in a fully automatic manner as claimed in any one of claims 1 to 7, characterized by comprising the steps of:
s1, moving the lower hot plate of the vulcanizing machine downwards after the product is vulcanized and molded to separate the upper die and the middle die from the product;
s2, inserting two ends of the supporting die into the external brackets, moving the external brackets upwards to lift the supporting die, driving the bottom die to be separated from the product, and enabling the petals to move outwards on the bottom die in a guiding manner to the periphery of the die core to be separated from the product;
s3, the supporting die continues to rise, and the product is pulled to be separated from the die core through the motion of the flap die;
and S4, grabbing the product upwards to finish demoulding.
9. The method for fully automatically releasing a rubber mold from a mold as claimed in claim 8, wherein step S2 specifically comprises: firstly, two ends of a supporting die are inserted into an external bracket through opening a lower hot plate of a vulcanizing machine; moving the external bracket upwards to separate the cam from the clamping arm; then, the external bracket is continuously moved upwards to separate the supporting die from the bottom template so as to drive the product, the die core and the cushion block to rise, so that the product is separated from the lower insert and the stop pin is not separated from the product; and then the external bracket is moved upwards continuously, the Y-direction flap moves on the Y-direction inclined plane, the X-direction flap moves on the X-direction inclined plane, so that the Y-direction flap and the X-direction flap are separated from the product, and the stop pin limits the product and limits the product to move.
10. The method for fully automatically releasing a rubber mold from a mold as claimed in claim 9, wherein step S3 specifically comprises: and the supporting die continuously rises to enable the pulling pin at the bottom of the X-direction flap die to abut against the end part of the waist-shaped through hole on the extension pulling plate, and the stop pin is separated from the product, and then the X-direction flap die pulls the product to be separated from the die core through the delay pulling plate.
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| CN113681843B (en) | 2023-02-28 |
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