CN216579165U - Blow molding mold for pivot connecting piece of dust cover - Google Patents
Blow molding mold for pivot connecting piece of dust cover Download PDFInfo
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- CN216579165U CN216579165U CN202122914948.6U CN202122914948U CN216579165U CN 216579165 U CN216579165 U CN 216579165U CN 202122914948 U CN202122914948 U CN 202122914948U CN 216579165 U CN216579165 U CN 216579165U
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Abstract
The utility model discloses a blow molding mold of a pivot connecting piece of a dust cover, wherein a first blow molding cavity and a second blow molding cavity are respectively provided with a limiting sunk groove molding bulge, the first blow molding cavity is provided with two pivot groove molding sliding blocks with linear displacement and a semicircular avoiding groove, and the second blow molding cavity is provided with a matching semicircular groove. The utility model can realize the high-precision forming of the pivot connecting piece of the dust cover, simultaneously has convenient and efficient piece withdrawing and can not cause the damage of the withdrawn piece. The design of guide and die assembly air resistance of the pivot groove forming slide block is adopted, the displacement precision and the air resistance requirement in the blow molding process are met, and the blow molding precision of the product is guaranteed. Possess and join in marriage pipe wall shaping portion, satisfy and join in marriage the shaping precision and the structural strength demand of joining in marriage the pipe wall, can also realize the homogenization design of blowing simultaneously, realize the multiple spot blowing through pricking out the gas, can improve interior pipe wall and outer pipe wall shaping precision simultaneously, the whole quality of product is controllable and stable, and the qualification rate obtains great promotion.
Description
Technical Field
The utility model relates to a blow molding mold of a pivot connecting piece of a dust cover, belonging to the technical field of blow molding molds.
Background
The industrial production involves the injection molding or blow molding of products, and the injection molding and the blow molding are two processing techniques of mold products, but the processing techniques are different and have different characteristics. Briefly, injection molds use an "injection + compression" mode, blow molds use an "injection + blow" mode, and injection is a solid core while blow is a hollow core.
Blow molding, also known as blow molding, is a rapidly growing plastic processing method. The thermoplastic resin in a heating softening state or the tubular plastic parison obtained by injection molding is placed in a mold, then compressed air is injected after the mold is closed, so that the plastic parison is blown to cling to the inner wall of the mold, and then cooling and demolding are carried out, and finally the desired hollow product is obtained.
At present, a dust cover pivot connecting piece exists, which comprises a pile body and a pivot pile platform connected with the pile body, wherein two pivot grooves which are oppositely arranged are arranged on a group of opposite side walls of the pivot pile platform, a top limit sunken groove and a bottom limit sunken groove are respectively arranged at the connecting end of the pile body and the pivot pile platform, the dust cover pivot connecting piece is generally of a hollow structure, blow molding is required to be carried out through a blow molding die, but the limit sunken grooves and the pivot grooves are required to be matched with corresponding blocks, vertical interference exists in the arrangement direction of the blocks, the demolding operation of the dust cover pivot connecting piece is influenced, and the traditional mode adopts hard workpiece separation operation, which can cause the end surface damage of the pivot grooves and influence the product molding qualification rate.
In addition, one end of the pile body, which is far away from the pivot pile platform, is provided with two adapting pipe walls, and two end faces of the pivot pile platform, which faces the pivot pile platform, are also provided with the adapting pipe walls respectively, so that the adapting pipe walls need certain structural strength and shape precision, and the traditional blow molding die is difficult to realize high-precision molding of the adapting pipe walls.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provides a blow molding mold of a dust cover pivot connecting piece, aiming at the problem that the traditional blow molding mold cannot meet the requirements of blow molding and demolding of the dust cover pivot connecting piece.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a blow molding mold of a dust cover pivot connecting piece comprises a pile main body and a pivot pile platform connected with the pile main body, wherein a group of opposite side walls of the pivot pile platform are respectively provided with a pivot groove, the top surface and the bottom surface of the connecting end of the pile main body and the pivot pile platform are respectively provided with a limit sunken groove,
the blow molding die comprises a first blow molding die holder and a second blow molding die holder which are provided with die opening and closing displacements, a first blow molding cavity is arranged in the first blow molding die holder, a second blow molding cavity is arranged in the second blow molding die holder, limiting sink groove molding protrusions for limiting sink groove molding are respectively arranged in the first blow molding cavity and the second blow molding cavity,
the first blow molding cavity is provided with two pivot groove molding sliding blocks with linear displacement and used for molding corresponding to the pivot grooves and a semicircular avoiding groove used for avoiding the pivot groove molding sliding blocks, the second blow molding cavity is provided with a matched semicircular groove used for matching with the semicircular avoiding groove,
and a blow molding cavity used for blow molding of the dust cover pivot connecting piece is formed between the first blow molding cavity and the second blow molding cavity.
Preferably, the semicircular avoiding groove and the matching semicircular groove form a profile wall with a circular through hole,
and a pivot forming part which penetrates through the circular through hole and extends into the blowing cavity is arranged on the pivot groove forming slide block, and the peripheral wall of the pivot forming part is matched with the hole wall of the circular through hole.
Preferably, the pivot forming part is provided with a limit ring rib which is used for limiting and matching with one side of the profile wall, which deviates from the blow molding cavity.
Preferably, the first blow molding cavity is provided with a guide matching sliding groove for carrying the pivot groove molding sliding block, and the second blow molding cavity is provided with an avoiding matching sinking cavity for providing a displacement space of the guide matching sliding groove.
Preferably, the end surface of the pile main body departing from the pivot pile platform and the end surface of the pivot pile platform facing the pile main body are respectively provided with a matching pipe wall,
a plurality of matched pipe wall forming parts used for forming the matched pipe wall are arranged in the blow molding cavity, each matched pipe wall forming part comprises a half-shaped pile arranged on the first blow molding cavity and a matched half-shaped pile arranged on the second blow molding cavity,
the semi-shaped pile is provided with a semi-shaped matching pipe wall type groove and a semi-shaped extruding channel, the matching semi-shaped pile is provided with a matching semi-shaped pipe groove matched with the semi-shaped matching pipe wall type groove and a matching semi-shaped channel matched with the semi-shaped extruding channel, the semi-shaped matching pipe wall type groove and the matching semi-shaped pipe groove are spliced to form a matching pipe wall cavity for forming a matching pipe wall, and the semi-shaped extruding channel and the matching semi-shaped channel are spliced to form an extruding channel communicated with the matching pipe wall cavity.
Preferably, the material extruding channel is connected with a material extruding chamber, and the material extruding chamber comprises a hemispherical cavity which is arranged in the first blow molding cavity and communicated with the half-type material extruding channel and a matched hemispherical cavity which is arranged in the second blow molding cavity and communicated with the matched half-type channel.
Preferably, the hemisphere cavity and/or the matched hemisphere cavity are communicated with a penetrating type blowing gas source.
Preferably, the extrusion chamber is located in the blow molding chamber.
Preferably, the first blow molding cavity is provided with a first sealing outer edge, and the second blow molding cavity is provided with a second sealing outer edge matched with the first sealing outer edge in mortise-tenon joint.
The utility model has the following beneficial effects:
1. the high-precision forming of the pivot connecting piece of the dust cover can be realized, the piece retreating is convenient and efficient, and the damage to the piece retreating cannot be caused.
2. The design of guide and die assembly air resistance of the pivot groove forming slide block is adopted, the displacement precision and the air resistance requirement in the blow molding process are met, and the blow molding precision of the product is guaranteed.
3. Possess and join in marriage pipe wall shaping portion, satisfy and join in marriage the shaping precision and the structural strength demand of joining in marriage the pipe wall, can also realize the homogenization design of blowing simultaneously, realize the multiple spot blowing through pricking out the gas, can improve interior pipe wall and outer pipe wall shaping precision simultaneously, the whole quality of product is controllable and stable, and the qualification rate obtains great promotion.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a first blow mold base of a blow mold for a pivotal dust boot connector of the present invention.
Figure 2 is a schematic view of a second blow mold base of the blow mold tooling for the pivotal dust cap link of the present invention.
Figure 3 is a schematic view of the pivotal connection of the dust boot of the present invention.
Figure 4 is a schematic view of another alternate view of the pivotal connection of the dust boot of the present invention.
Figure 5 is a schematic view of yet another alternate perspective of the pivotal connection of the dust cap of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The utility model provides a blow molding mold of a dust cover pivot connecting piece, as shown in fig. 3 to 5, a dust cover pivot connecting piece 10 comprises a pile main body 11 and a pivot pile platform 12 connected with the pile main body 11, a group of opposite side walls of the pivot pile platform 12 are respectively provided with a pivot groove 13, and the top surface and the bottom surface of the connecting end of the pile main body 11 and the pivot pile platform 12 are respectively provided with a limit sunken groove 14.
The interference of the piece retreating during the forming of the pivot groove 13 and the piece retreating during the forming of the limiting sinking groove 14 is generally realized by adopting a hard demolding operation, and the hard demolding has the conditions of larger demolding tension and easy workpiece damage.
In view of the requirement, as shown in fig. 1 and 2, the blow molding mold includes a first blow molding mold base 1 and a second blow molding mold base 2 having mold opening and closing displacement, a first blow molding cavity 3 is disposed in the first blow molding mold base 1, a second blow molding cavity 4 is disposed in the second blow molding mold base 2, and limiting sinking groove forming protrusions 5 for limiting sinking groove forming are disposed in the first blow molding cavity and the second blow molding cavity respectively.
The first blow molding cavity 3 is provided with two pivot groove molding sliding blocks 6 which have linear displacement and are used for corresponding to the molding of the pivot grooves, and a semicircular avoiding groove 31 for avoiding the pivot groove molding sliding blocks, the second blow molding cavity 4 is provided with a matched semicircular groove 41 which is matched with the semicircular avoiding groove, and a blow molding cavity used for blow molding of the dust cover pivot connecting piece is formed between the first blow molding cavity and the second blow molding cavity.
The specific implementation process and principle description are as follows:
in the process of blow molding, firstly, a blown tube film is clamped by a first blow molding die holder 1 and a second blow molding die holder 2, so that the tube film is positioned in a blowing cavity, and in the process of blowing by a blowing mechanism, the film material can bulge and is matched with the cavity wall for molding.
During blow molding, the pivot groove forming slide block 6 passes through the semicircular avoiding groove 31 and the matched semicircular groove 41 through external force to form the pivot groove 13 of the current blow molded body, and is pulled out by external force after forming so as to be separated from the pivot groove 13, and at the moment, after mold separation, no forming protrusion interference exists, so that the unloading operation is convenient.
In one embodiment, the semicircular avoiding groove and the matching semicircular groove form a profile wall with a circular through hole, the pivot groove forming slider is provided with a pivot forming part 61 for penetrating through the circular through hole and extending into the blowing cavity, and the outer peripheral wall of the pivot forming part 61 is matched with the hole wall of the circular through hole.
Specifically, the outer peripheral wall of the pivot forming portion 61 is matched with the hole wall of the circular through hole, so that certain air resistance can be realized, and the phenomenon of extruding materials along the gap is not easy to occur.
In one embodiment, the pivot-forming portion 61 is provided with a stop-ring rib 62 for stop-engagement with the side of the mould wall facing away from the blow-moulding chamber.
Specifically, the stopper ring rib 62 is used to limit the linear displacement of the pivot forming portion 61, thereby satisfying the forming accuracy of the pivot groove 13, and in addition, it can achieve a certain sealing air-lock fit, so that the chamber sealing performance is improved.
In one embodiment, the first blow-molded cavity 3 is provided with a guide mating chute 32 for carrying a pivot slot-forming slider, and the second blow-molded cavity is provided with an avoiding mating cavity 42 for providing a displacement space for the guide mating chute.
The linear displacement precision and the stroke stability of the pivot slot forming slide block 6 are met through the matching of the guide matching chute 32 and the avoidance matching sinking cavity 42.
In one embodiment, the end of the pile body 11 facing away from the pivot stub and the end of the pivot stub 12 facing the pile body are provided with mating pipe walls 15, respectively.
I.e. there is a need for shaping of the particular mating tube wall 15.
Aiming at the situation, a plurality of matched pipe wall forming parts 7 used for forming matched pipe walls are arranged in the blow molding cavity, each matched pipe wall forming part 7 comprises a half-shaped pile 71 arranged on the first blow molding cavity and a matched half-shaped pile 72 arranged on the second blow molding cavity, a half-shaped matched pipe wall groove 711 and a half-shaped extruding channel 712 are arranged on each half-shaped pile, a matched half-shaped pipe groove 721 matched with the half-shaped matched pipe wall groove and a matched half-shaped channel 722 matched with the half-shaped extruding channel are arranged on each matched half-shaped pile, the half-shaped matched pipe wall groove and the matched half-shaped pipe groove are spliced to form a matched pipe wall cavity used for forming matched pipe walls, and the half-shaped extruding channel and the matched half-shaped channel are spliced to form an extruding channel communicated with the matched pipe wall cavity.
Specifically, the half-shaped adapting pipe wall type groove and the matching half-shaped pipe groove are spliced to form an adapting pipe wall cavity for adapting pipe wall forming, the cavity meets the high-precision forming requirement of an extruded adapting pipe wall 15, and meanwhile, a certain extruding space can be provided by an extruding channel to meet the constant-pressure-relief high-precision forming requirement of the extruding channel.
In one embodiment, the extrusion channel is connected with an extrusion chamber 8, and the extrusion chamber 8 comprises a hemisphere cavity 81 disposed in the first blow molding cavity and communicated with the half-type extrusion channel, and a matching hemisphere cavity 82 disposed in the second blow molding cavity and communicated with the matching half-type extrusion channel.
This crowded material cavity 8 satisfies the whole atmospheric pressure regulation cooperation demand of blow molding die cavity, can realize extruding material release to a certain extent, and the whole shaping precision is higher.
In one embodiment, the hemispherical cavity and/or the mating hemispherical cavity are in communication with a piercing type blowing gas source 9.
It should be noted that the blowing chamber in the present application is generally in an end air intake manner, and in the present application, any one or more blowing chambers may be selected as an air intake end, and in the mold closing process, the film tube is extruded into the spherical cavity to form a spherical structure, and at this time, the penetrating blowing source 9 can pierce the spherical body and enter the film cavity along the extrusion channel to perform the blowing operation. The forming precision can be guaranteed by blowing at a plurality of point positions.
In one embodiment, the extrusion chamber is located within the blow chamber, i.e., it is a cavity-in-cavity design that meets the air intake mating requirements as a blow port.
In a specific embodiment, the first blow molding cavity is provided with a first sealing outer edge 30, and the second blow molding cavity is provided with a second sealing outer edge 40 for tenon-and-mortise matching with the first sealing outer edge, so that the alignment splicing precision and the air tightness of the blow molding cavity are met, and the requirement on the product molding precision is met.
Through the above description, the blow molding mold for the dust cover pivot connecting piece can realize high-precision molding of the dust cover pivot connecting piece, and meanwhile, the piece withdrawing is convenient and efficient, and the damage of the piece withdrawing is avoided. The design of guide and die assembly air resistance of the pivot groove forming slide block is adopted, the displacement precision and the air resistance requirement in the blow molding process are met, and the blow molding precision of the product is guaranteed. Possess and join in marriage pipe wall shaping portion, satisfy and join in marriage the shaping precision and the structural strength demand of joining in marriage the pipe wall, can also realize the homogenization design of blowing simultaneously, realize the multiple spot blowing through pricking out the gas, can improve interior pipe wall and outer pipe wall shaping precision simultaneously, the whole quality of product is controllable and stable, and the qualification rate obtains great promotion.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.
Claims (9)
1. The blow molding mould of the pivot connecting piece of the dust cover comprises a pile body and a pivot pile platform connected with the pile body, wherein a group of opposite side walls of the pivot pile platform are respectively provided with a pivot groove, and the top surface and the bottom surface of the connecting end of the pile body and the pivot pile platform are respectively provided with a limiting sinking groove, and the blow molding mould is characterized in that:
the blow molding die comprises a first blow molding die holder and a second blow molding die holder which are provided with die opening and closing displacements, a first blow molding cavity is arranged in the first blow molding die holder, a second blow molding cavity is arranged in the second blow molding die holder, limiting sink groove molding protrusions for limiting sink groove molding are respectively arranged in the first blow molding cavity and the second blow molding cavity,
the first blow molding cavity is provided with two pivot groove molding sliding blocks which have linear displacement and are used for corresponding to the pivot groove molding and a semicircular avoiding groove used for avoiding the pivot groove molding sliding blocks, the second blow molding cavity is provided with a matched semicircular groove used for being matched with the semicircular avoiding groove,
and a blow molding cavity used for blow molding of the dust cover pivot connecting piece is formed between the first blow molding cavity and the second blow molding cavity.
2. A blow mold for a dust boot pivotal connection as set forth in claim 1 wherein:
the semicircular avoidance groove and the matched semicircular groove form a profile wall with a circular through hole,
and a pivot forming part which penetrates through the circular through hole and extends into the blowing cavity is arranged on the pivot groove forming slider, and the outer peripheral wall of the pivot forming part is matched with the hole wall of the circular through hole.
3. A blow mold for a dust boot pivotal connection as set forth in claim 2 wherein:
and the pivot forming part is provided with a limit ring rib which is used for limiting and matching with one side of the molded wall, which deviates from the blow molding cavity.
4. A blow mold for a dust boot pivotal connection as set forth in claim 2 wherein:
the first blow molding cavity is provided with a guide matching sliding groove for carrying the pivot groove molding sliding block, and the second blow molding cavity is provided with an avoiding matching sinking cavity for providing a displacement space of the guide matching sliding groove.
5. A blow mold for a dust boot pivotal connection as set forth in claim 1 wherein:
the end surface of the pile main body deviating from the pivot pile platform and the end surface of the pivot pile platform facing the pile main body are respectively provided with a matching pipe wall,
a plurality of matched pipe wall forming parts used for forming the matched pipe wall are arranged in the blow molding cavity, each matched pipe wall forming part comprises a half-shaped pile arranged on the first blow molding cavity and a matched half-shaped pile arranged on the second blow molding cavity,
the semi-shaped pile is provided with a semi-shaped matching pipe wall type groove and a semi-shaped extruding channel, the matching semi-shaped pile is provided with a matching semi-shaped pipe groove matched with the semi-shaped matching pipe wall type groove and a matching semi-shaped channel matched with the semi-shaped extruding channel, the semi-shaped matching pipe wall type groove and the matching semi-shaped pipe groove are spliced to form a matching pipe wall cavity for forming a matching pipe wall, and the semi-shaped extruding channel and the matching semi-shaped channel are spliced to form an extruding channel communicated with the matching pipe wall cavity.
6. A blow mold for a dust cap pivotal connection as in claim 5, wherein:
the material extruding channel is connected with a material extruding cavity, and the material extruding cavity comprises a hemispherical cavity which is arranged in the first blow molding cavity and communicated with the half-type material extruding channel and a matched hemispherical cavity which is arranged in the second blow molding cavity and communicated with the matched half-type channel.
7. A blow mold for a dust boot pivotal connection as claimed in claim 6, wherein:
and the hemispherical cavity and/or the matched hemispherical cavity are communicated with a piercing type air blowing source.
8. A blow mold for a dust boot pivotal connection as claimed in claim 6, wherein:
the extrusion chamber is located in the blowing chamber.
9. A blow mold for a dust boot pivotal connection as in claim 1, wherein:
the first blow molding cavity is provided with a first sealing outer edge, and the second blow molding cavity is provided with a second sealing outer edge matched with the first sealing outer edge in a mortise-tenon joint manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122914948.6U CN216579165U (en) | 2021-11-25 | 2021-11-25 | Blow molding mold for pivot connecting piece of dust cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122914948.6U CN216579165U (en) | 2021-11-25 | 2021-11-25 | Blow molding mold for pivot connecting piece of dust cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216579165U true CN216579165U (en) | 2022-05-24 |
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ID=81648893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122914948.6U Active CN216579165U (en) | 2021-11-25 | 2021-11-25 | Blow molding mold for pivot connecting piece of dust cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216579165U (en) |
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2021
- 2021-11-25 CN CN202122914948.6U patent/CN216579165U/en active Active
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